Turn database drivers into classes. Keep db.inc.php as a Shim.

This commit is contained in:
Markus Birth 2022-02-12 23:27:14 +01:00
parent 5a32071cb1
commit d5318922b9
Signed by: mbirth
GPG Key ID: A9928D7A098C3A9A
19 changed files with 3840 additions and 3444 deletions

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@ -1,186 +1,167 @@
<?php
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
// PHP 5.5 compat, no longer use deprecated mysql
if (($serendipity['dbType'] ?? '') == 'mysql') {
$serendipity['dbType'] = 'mysqli';
// Serendipity
// See LICENSE file for license information.
// FIXME: THIS IS A SHIM FOR BACKWARDS COMPATIBILITY - REMOVE WHEN NO LONGER NEEDED
use Serendipity\Database\DbFactory;
// SQLite3 only fetches by assoc, we will emulate the other result types
define(SQLITE3_ASSOC, 0);
define(SQLITE3_NUM, 1);
define(SQLITE3_BOTH, 2);
function serendipity_db_connect()
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->connect();
}
if (@include(S9Y_INCLUDE_PATH . "include/db/{$serendipity['dbType']}.inc.php")) {
@define('S9Y_DB_INCLUDED', TRUE);
function serendipity_db_reconnect()
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->reconnect();
}
#include_once(S9Y_INCLUDE_PATH . "include/db/generic.inc.php");
#define('S9Y_DB_INCLUDED', TRUE);
/**
* Perform a query to update the data of a certain table row
*
* You can pass the tablename and an array of keys to select the row,
* and an array of values to UPDATE in the DB table.
*
* @access public
* @param string Name of the DB table
* @param array Input array that controls the "WHERE" condition part. Pass it an associative array like array('key1' => 'value1', 'key2' => 'value2') to get a statement like "WHERE key1 = value1 AND key2 = value2". Escaping is done automatically in this function.
* @param array Input array that controls the "SET" condition part. Pass it an associative array like array('key1' => 'value1', 'key2' => 'value2') to get a statement like "SET key1 = value1, key2 = value2". Escaping is done automatically in this function.
* @param string What do do with the SQL query (execute, display)
* @return array Returns the result of the SQL query
*/
function serendipity_db_update($table, $keys, $values, $action = 'execute')
{
global $serendipity;
$set = '';
foreach ($values as $k => $v) {
if (strlen($set))
$set .= ', ';
$set .= $k . '=\'' . serendipity_db_escape_string($v) . '\'';
}
$where = '';
foreach ($keys as $k => $v) {
if (strlen($where))
$where .= ' AND ';
$where .= $k . '=\'' . serendipity_db_escape_string($v) . '\'';
}
if (strlen($where)) {
$where = " WHERE $where";
}
$q = "UPDATE {$serendipity['dbPrefix']}$table SET $set $where";
if ($action == 'execute') {
return serendipity_db_query($q);
} else {
return $q;
}
$db = DbFactory::createFromConfig($serendipity);
return $db->update($table, $keys, $values, $action);
}
/**
* Perform a query to insert an associative array into a specific SQL table
*
* You can pass a tablename and an array of input data to insert into an array.
*
* @access public
* @param string Name of the SQL table
* @param array Associative array of keys/values to insert into the table. Escaping is done automatically.
* @param string What do do with the SQL query (execute, display)
* @return array Returns the result of the SQL query
*/
function serendipity_db_insert($table, $values, $action = 'execute')
{
global $serendipity;
$names = implode(',', array_keys($values));
$vals = '';
foreach ($values as $k => $v) {
if (strlen($vals))
$vals .= ', ';
$vals .= '\'' . serendipity_db_escape_string($v) . '\'';
}
$q = "INSERT INTO {$serendipity['dbPrefix']}$table ($names) values ($vals)";
if ($action == 'execute') {
return serendipity_db_query($q);
} else {
return $q;
}
$db = DbFactory::createFromConfig($serendipity);
return $db->insert($table, $values, $action);
}
/**
* Check whether an input value corresponds to a TRUE/FALSE option in the SQL database.
*
* Because older DBs could not store TRUE/FALSE values to be restored into a PHP variable,
* this function tries to detect what the return code of a SQL column is, and convert it
* to a PHP native boolean.
*
* Values that will be recognized as TRUE are 'true', 't' and '1'.
*
* @access public
* @param string input value to compare
* @return boolean boolean conversion of the input value
*/
function serendipity_db_bool($val)
{
if(($val === true) || ($val == 'true') || ($val == 't') || ($val == '1'))
return true;
#elseif (($val === false || $val == 'false' || $val == 'f'))
else
return false;
}
/**
* Return a SQL statement for a time interval or timestamp, specific to certain SQL backends
*
* @access public
* @param string Indicate whether to return a timestamp, or an Interval
* @param int The interval one might want to use, if Interval return was selected
* @return string SQL statement
*/
function serendipity_db_get_interval($val, $ival = 900) {
global $serendipity;
switch($serendipity['dbType']) {
case 'sqlite':
case 'sqlite3':
case 'sqlite3oo':
case 'pdo-sqlite':
$interval = $ival;
$ts = time();
break;
case 'pdo-postgres':
case 'postgres':
$interval = "interval '$ival'";
$ts = 'NOW()';
break;
case 'mysql':
case 'mysqli':
default:
$interval = $ival;
$ts = 'NOW()';
break;
}
switch($val) {
case 'interval':
return $interval;
default:
case 'ts':
return $ts;
}
$db = DbFactory::createFromConfig($serendipity);
return $db->bool($val);
}
/**
* Operates on an array to prepare it for SQL usage.
*
* @access public
* @param string Concatenation character
* @param array Input array
* @param string How to convert (int: Only numbers, string: serendipity_db_escape_String)
* @return string Imploded string
*/
function serendipity_db_implode($string, &$array, $type = 'int') {
$new_array = array();
if (!is_array($array)) {
return '';
}
foreach($array AS $idx => $key) {
if ($type == 'int') {
$new_array[$idx] = (int)$key;
} else {
$new_array[$idx] = serendipity_db_escape_string($key);
}
}
$string = implode($string, $new_array);
return $string;
function serendipity_db_get_interval($val, $ival = 900)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->getInterval($val, $ival);
}
/* vim: set sts=4 ts=4 expandtab : */
function serendipity_db_implode($string, &$array, $type = 'int')
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->implode($string, $array, $type);
}
function serendipity_db_concat($string)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->concat($string);
}
function serendipity_db_logmsg($msgstr)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->logmsg($msgstr);
}
function serendipity_db_begin_transaction()
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->beginTransaction();
}
function serendipity_db_end_transaction($commit)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->endTransaction($commit);
}
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ')
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->inSql($col, $search_ids, $type);
}
function serendipity_db_escape_string($string)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->escapeString($string);
}
function serendipity_db_limit($start, $offset)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->limit($start, $offset);
}
function serendipity_db_limit_sql($limitstring)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->limitSql($limitstring);
}
function serendipity_db_affected_rows()
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->affectedRows();
}
function serendipity_db_updated_rows()
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->updatedRows();
}
function serendipity_db_matched_rows()
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->matchedRows();
}
function serendipity_db_insert_id($table = '', $id = '')
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->insertId($table, $id);
}
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->query($sql, $single, $result_type, $reportErr, $assocKey, $assocVal, $expectError);
}
function serendipity_db_schema_import($query)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->schemaImport($query);
}
function serendipity_db_probe($hash, &$errs)
{
global $serendipity;
$db = DbFactory::createFromConfig($serendipity);
return $db->probe($hash, $errs);
}

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<?php
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
serendipity_db_query('start transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
if ($commit){
serendipity_db_query('commit');
}else{
serendipity_db_query('rollback');
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignored on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false) {
global $serendipity;
$type_map = array('assoc' => MYSQLI_ASSOC, 'num' => MYSQLI_NUM, 'both' => MYSQLI_BOTH, 'true' => true, 'false' => false);
if ($expectError) {
$c = @mysqli_query($serendipity['dbConn'], $sql);
} else {
$c = mysqli_query($serendipity['dbConn'], $sql);
}
if (!$expectError && mysqli_error($serendipity['dbConn']) != '') {
$msg = mysqli_error($serendipity['dbConn']);
return $msg;
}
if (!$c) {
if (!$expectError && !$serendipity['production']) {
print mysqli_error($serendipity['dbConn']);
if (function_exists('debug_backtrace') && $reportErr == true) {
highlight_string(var_export(debug_backtrace(), 1));
}
}
return $type_map['false'];
}
if ($c === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
switch(mysqli_num_rows($c)) {
case 0:
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
case 1:
if ($single) {
return mysqli_fetch_array($c, $result_type);
}
default:
if ($single) {
return mysqli_fetch_array($c, $result_type);
}
$rows = array();
while ($row = mysqli_fetch_array($c, $result_type)) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
return $rows;
}
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id() {
global $serendipity;
return mysqli_insert_id($serendipity['dbConn']);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows() {
global $serendipity;
return mysqli_affected_rows($serendipity['dbConn']);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows() {
global $serendipity;
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysqli_info($serendipity['dbConn']),
$arr);
// mysqli_affected_rows returns 0 if rows were matched but not changed.
// mysqli_info returns rows matched
return $arr[1];
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows() {
global $serendipity;
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysqli_info($serendipity['dbConn']),
$arr);
// mysqli_affected_rows returns 0 if rows were matched but not changed.
// mysqli_info returns rows matched
return $arr[0];
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string) {
global $serendipity;
return mysqli_escape_string($serendipity['dbConn'], $string);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
return ' LIMIT ' . $limitstring;
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect() {
global $serendipity;
if (isset($serendipity['dbConn'])) {
return $serendipity['dbConn'];
}
$function = 'mysqli_connect';
$connparts = explode(':', $serendipity['dbHost']);
if (!empty($connparts[1])) {
// A "hostname:port" connection was specified
$serendipity['dbConn'] = $function($connparts[0], $serendipity['dbUser'], $serendipity['dbPass'], $serendipity['dbName'], $connparts[1]);
} else {
// Connect with default ports
$serendipity['dbConn'] = $function($connparts[0], $serendipity['dbUser'], $serendipity['dbPass']);
}
mysqli_select_db($serendipity['dbConn'], $serendipity['dbName']);
serendipity_db_reconnect();
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
global $serendipity;
$use_charset = '';
if (isset($serendipity['dbCharset']) && !empty($serendipity['dbCharset'])) {
$use_charset = $serendipity['dbCharset'];
if (!defined('SQL_CHARSET_INIT')) { define('SQL_CHARSET_INIT', true); }
} elseif (defined('SQL_CHARSET') && $serendipity['dbNames'] && !defined('SQL_CHARSET_INIT')) {
$use_charset = SQL_CHARSET;
}
if ($use_charset != '') {
mysqli_set_charset($serendipity['dbConn'], $use_charset);
}
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query) {
static $search = array('{AUTOINCREMENT}', '{PRIMARY}',
'{UNSIGNED}', '{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', '{TEXT}');
static $replace = array('int(11) not null auto_increment', 'primary key',
'unsigned' , 'FULLTEXT', 'FULLTEXT', 'enum (\'true\', \'false\') NOT NULL default \'true\'', 'LONGTEXT');
global $serendipity;
$search[] = '{UTF_8}';
if ( $_POST['charset'] == 'UTF-8/' ||
$serendipity['charset'] == 'UTF-8/' ||
$serendipity['POST']['charset'] == 'UTF-8/' ||
LANG_CHARSET == 'UTF-8' ) {
if (serendipity_utf8mb4_ready()) {
$replace[] = 'ROW_FORMAT=DYNAMIC /*!40100 CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci */';
} else {
# in old versions we stick to the three byte pseudo utf8 to not trip
# over the max index restriction of 1000 bytes
$replace[] = '/*!40100 CHARACTER SET utf8 COLLATE utf8_unicode_ci */';
}
} else {
$replace[] = '';
}
if (serendipity_utf8mb4_ready()) {
# InnoDB enables us to use utf8mb4 with the higher max index size
serendipity_db_query("SET storage_engine=INNODB");
} else {
# Before 5.6.4/10.0.5 InnoDB did not support fulltext indexes, which we use,
# thus we stay with MyISAM here
serendipity_db_query("SET storage_engine=MYISAM");
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Check if we think that it is safe to ugprade to utf8mb4. This checks version numbers and applied settings.
* Depending on the version of mariadb/mysql we need to check either one or three settings. We check for
* innodb being available with fulltext index and large index support, so that our database scheme can work
*
* @return boolean Whether the database could support utf8mb4
*/
function serendipity_utf8mb4_ready() {
global $serendipity;
$mysql_version = mysqli_get_server_info($serendipity['dbConn']);
$maria = false;
if (strpos($mysql_version, 'MariaDB') !== false) {
$maria = true;
}
if ($maria) {
# maria trips up our version detection scheme by prepending 5.5.5 to newer versions
$mysql_version = str_replace('5.5.5-', '', $mysql_version);
}
if ($maria) {
# see https://mariadb.com/kb/en/innodb-file-format/ for when barracuda is available, and when it's the only option
# see https://docs.nextcloud.com/server/15/admin_manual/configuration_database/mysql_4byte_support.html for which
# variables we have to check to assume utf8mb4 it can work (with the large indexes we need)
if (version_compare($mysql_version, '10.3.1', '>=')) {
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_per_table
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
return $rows[0][1] == 'ON';
} catch (Exception $e) {
return false;
}
}
# see https://mariadb.com/kb/en/full-text-index-overview/. We need 10.0.5 to have fulltext indexes with innodb
if (version_compare($mysql_version, '10.0.5', '>=')) {
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_per_table
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_format
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_file_format'");
try {
if ($rows[0][1] != 'barracuda') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_large_prefix
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_large_prefix'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
}
return false; # version too old
}
# now we know it is not mariadb, but "real" mysql
# These versions might need to be changed based on testing feedback
if (version_compare($mysql_version, '8.0.0', '>=')) {
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
return $rows[0][1] == 'ON';
} catch (Exception $e) {
return false;
}
}
# see https://dev.mysql.com/doc/refman/5.6/en/innodb-fulltext-index.html. We need 5.6 for fulltext indexes
if (version_compare($mysql_version, '5.6', '>=')) {
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_per_table
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_format
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_file_format'");
try {
if ($rows[0][1] != 'barracuda') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_large_prefix
$rows = serendipity_db_query("SHOW VARIABLES LIKE 'innodb_large_prefix'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
return true;
}
return false; # version too old
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs) {
global $serendipity;
if (!function_exists('mysqli_connect')) {
$errs[] = 'No mySQLi extension found. Please check your webserver installation or contact your systems administrator regarding this problem.';
return false;
}
$function = 'mysqli_connect';
$connparts = explode(':', $hash['dbHost']);
if (!empty($connparts[1])) {
// A "hostname:port" connection was specified
$c = @$function($connparts[0], $hash['dbUser'], $hash['dbPass'], $hash['dbName'], $connparts[1]);
} else {
// Connect with default ports
$c = @$function($connparts[0], $hash['dbUser'], $hash['dbPass']);
}
if (!$c) {
$errs[] = 'Could not connect to database; check your settings.';
$errs[] = 'The mySQL error was: ' . serendipity_specialchars(mysqli_connect_error());
return false;
}
$serendipity['dbConn'] = $c;
if ( !@mysqli_select_db($c, $hash['dbName']) ) {
$errs[] = 'The database you specified does not exist.';
$errs[] = 'The mySQL error was: ' . serendipity_specialchars(mysqli_error($c));
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return 'concat(' . $string . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

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@ -1,336 +0,0 @@
<?php
# $Id: postgres.inc.php 1178 2006-05-01 13:53:40Z garvinhicking $
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
global $serendipity;
$serendipity['dbConn']->beginTransaction();
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
global $serendipity;
if ($commit){
$serendipity['dbConn']->commit();
}else{
$serendipity['dbConn']->rollback();
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect() {
global $serendipity;
$host = $port = '';
if (strlen($serendipity['dbHost'])) {
if (false !== strstr($serendipity['dbHost'], ':')) {
$tmp = explode(':', $serendipity['dbHost']);
$host = "host={$tmp[0]};";
$port = "port={$tmp[1]};";
} else {
$host = "host={$serendipity['dbHost']};";
}
}
$serendipity['dbConn'] = new PDO(
sprintf(
'pgsql:%sdbname=%s',
"$host$port",
$serendipity['dbName']
),
$serendipity['dbUser'],
$serendipity['dbPass']
);
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string) {
global $serendipity;
return substr($serendipity['dbConn']->quote($string), 1, -1);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $offset . ', ' . $start;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
$limit_split = explode(',', $limitstring);
if (count($limit_split) > 1) {
$limit = ' LIMIT ' . $limit_split[0] . ' OFFSET ' . $limit_split[1];
} else {
$limit = ' LIMIT ' . $limit_split[0];
}
return $limit;
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows() {
global $serendipity;
return $serendipity['dbSth']->rowCount();
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows() {
global $serendipity;
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return $serendipity['dbSth']->rowCount();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows() {
global $serendipity;
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return $serendipity['dbSth']->rowCount();
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id($table = '', $id = '') {
global $serendipity;
if (empty($table) || empty($id)) {
// BC - will/should never be called with empty parameters!
return $serendipity['dbConn']->lastInsertId();
} else {
$query = "SELECT currval('{$serendipity['dbPrefix']}{$table}_{$id}_seq'::text) AS {$id}";
$res = $serendipity['dbConn']->prepare($query);
$res->execute();
foreach($res->fetchAll(PDO::FETCH_ASSOC) AS $row) {
return $row[$id];
}
return $serendipity['dbConn']->lastInsertId();
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false) {
global $serendipity;
$type_map = array(
'assoc' => PDO::FETCH_ASSOC,
'num' => PDO::FETCH_NUM,
'both' => PDO::FETCH_BOTH,
'true' => true,
'false' => false
);
if (!$expectError && ($reportErr || !$serendipity['production'])) {
$serendipity['dbSth'] = $serendipity['dbConn']->prepare($sql);
} else {
$serendipity['dbSth'] = $serendipity['dbConn']->prepare($sql);
}
if (!$serendipity['dbSth']) {
if (!$expectError && !$serendipity['production']) {
print "<span class='msg_error'>Error in $sql</span>";
print $serendipity['dbConn']->errorInfo() . "<BR/>\n";
if (function_exists('debug_backtrace')) {
highlight_string(var_export(debug_backtrace(), 1));
}
print "<pre>$sql</pre>\n";
}
return $type_map['false'];
}
$serendipity['dbSth']->execute();
if ($serendipity['dbSth'] === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
$n = 0;
$rows = array();
foreach($serendipity['dbSth']->fetchAll($result_type) AS $row) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if(count($rows) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
}
if(count($rows) == 1 && $single) {
return $rows[0];
}
return $rows;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query) {
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}',
'{FULLTEXT}', '{BOOLEAN}', 'int(1)', 'int(10)', 'int(11)', 'int(4)', '{UTF_8}', '{TEXT}');
static $replace = array('SERIAL', 'primary key', '', '', 'BOOLEAN NOT NULL', 'int2',
'int4', 'int4', 'int4', '', 'text');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs) {
global $serendipity;
if(!in_array('pgsql', PDO::getAvailableDrivers())) {
$errs[] = 'PDO_PGSQL driver not avialable';
return false;
}
$serendipity['dbConn'] = new PDO(
sprintf(
'pgsql:%sdbname=%s',
strlen($hash['dbHost']) ? ('host=' . $hash['dbHost'] . ';') : '',
$hash['dbName']
),
$hash['dbUser'],
$hash['dbPass']
);
if (!$serendipity['dbConn']) {
$errs[] = 'Could not connect to database; check your settings.';
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return '(' . str_replace(', ', '||', $string) . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

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@ -1,356 +0,0 @@
<?php
function serendipity_db_logmsg($msgstr) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] ' . $msgstr . "\n\n");
fclose($fp);
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
function serendipity_db_sqlite_fetch_array($row, $type = PDO::FETCH_ASSOC)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
$newrow = array();
foreach ($row AS $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$newrow[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
return $newrow;
}
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
global $serendipity;
$serendipity['dbConn']->beginTransaction();
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
global $serendipity;
if ($commit){
$serendipity['dbConn']->commit();
}else{
$serendipity['dbConn']->rollback();
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach($search_ids AS $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect() {
global $serendipity;
$serendipity['dbConn'] = new PDO(
'sqlite:' . (defined('S9Y_DATA_PATH') ? S9Y_DATA_PATH : $serendipity['serendipityPath']) . $serendipity['dbName'] . '.db'
);
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string) {
global $serendipity;
return substr($serendipity['dbConn']->quote($string), 1, -1);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
return ' LIMIT ' . $limitstring;
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows() {
global $serendipity;
return $serendipity['dbSth']->rowCount();
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows() {
global $serendipity;
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return $serendipity['dbSth']->rowCount();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows() {
global $serendipity;
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return $serendipity['dbSth']->rowCount();
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id($table = '', $id = '') {
global $serendipity;
return $serendipity['dbConn']->lastInsertId();
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false) {
global $serendipity;
$type_map = array(
'assoc' => PDO::FETCH_ASSOC,
'num' => PDO::FETCH_NUM,
'both' => PDO::FETCH_BOTH,
'true' => true,
'false' => false
);
//serendipity_db_logmsg('SQLQUERY: ' . $sql);
if (!$expectError && ($reportErr || !$serendipity['production'])) {
$serendipity['dbSth'] = $serendipity['dbConn']->prepare($sql);
} else {
$serendipity['dbSth'] = $serendipity['dbConn']->prepare($sql);
}
if (!$serendipity['dbSth']) {
if (!$expectError && !$serendipity['production']) {
print "<span class='msg_error'>Error in $sql</span>";
print $serendipity['dbConn']->errorInfo() . "<BR/>\n";
if (function_exists('debug_backtrace')) {
highlight_string(var_export(debug_backtrace(), 1));
}
print "<pre>$sql</pre>";
}
return $type_map['false'];
}
$serendipity['dbSth']->execute();
if ($serendipity['dbSth'] === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
$rows = array();
foreach($serendipity['dbSth']->fetchAll($result_type) AS $row) {
$row = serendipity_db_sqlite_fetch_array($row, $result_type);
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
//serendipity_db_logmsg('SQLRESULT: ' . print_r($rows,true));
if(count($rows) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
}
if(count($rows) == 1 && $single) {
return $rows[0];
}
return $rows;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query) {
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER AUTOINCREMENT', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
$query = str_replace('INTEGER AUTOINCREMENT PRIMARY KEY', 'INTEGER PRIMARY KEY AUTOINCREMENT', $query);
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs) {
global $serendipity;
if(!in_array('sqlite', PDO::getAvailableDrivers())) {
$errs[] = 'PDO_SQLITE driver not available';
return false;
}
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $serendipity['serendipityPath'] . $dbName . '.db';
}
$serendipity['dbConn'] = new PDO(
'sqlite:' . $dbfile
);
if (!$serendipity['dbConn']) {
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return 'concat(' . $string . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

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@ -1,348 +0,0 @@
<?php
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
serendipity_db_query('begin work');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
if ($commit){
serendipity_db_query('commit');
}else{
serendipity_db_query('rollback');
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect() {
global $serendipity;
if (isset($serendipity['dbPersistent']) && $serendipity['dbPersistent']) {
$function = 'pg_pconnect';
} else {
$function = 'pg_connect';
}
$host = $port = '';
if (strlen($serendipity['dbHost'])) {
if (false !== strstr($serendipity['dbHost'], ':')) {
$tmp = explode(':', $serendipity['dbHost']);
$host = "host={$tmp[0]} ";
$port = "port={$tmp[1]} ";
} else {
$host = "host={$serendipity['dbHost']} ";
}
}
$serendipity['dbConn'] = $function(
sprintf(
'%sdbname=%s user=%s password=%s',
"$host$port",
$serendipity['dbName'],
$serendipity['dbUser'],
$serendipity['dbPass']
)
);
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string) {
return pg_escape_string($string);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $offset . ', ' . $start;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
$limit_split = explode(',', $limitstring);
if (count($limit_split) > 1) {
$limit = ' LIMIT ' . $limit_split[0] . ' OFFSET ' . $limit_split[1];
} else {
$limit = ' LIMIT ' . $limit_split[0];
}
return $limit;
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows() {
global $serendipity;
return pg_affected_rows($serendipity['dbLastResult']);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows() {
global $serendipity;
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return pg_affected_rows($serendipity['dbLastResult']);
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows() {
global $serendipity;
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return pg_affected_rows($serendipity['dbLastResult']);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id($table = '', $id = '') {
global $serendipity;
if (empty($table) || empty($id)) {
// BC - will/should never be called with empty parameters!
return pg_last_oid($serendipity['dbLastResult']);
} else {
$query = "SELECT currval('{$serendipity['dbPrefix']}{$table}_{$id}_seq'::text) AS {$id}";
$res = pg_query($serendipity['dbConn'], $query);
if (pg_num_rows($res)) {
$insert_id = pg_fetch_array($res, 0, PGSQL_ASSOC);
return $insert_id[$id];
} else {
return pg_last_oid($serendipity['dbLastResult']); // BC - should not happen!
}
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false) {
global $serendipity;
$type_map = array(
'assoc' => PGSQL_ASSOC,
'num' => PGSQL_NUM,
'both' => PGSQL_BOTH,
'true' => true,
'false' => false
);
if (!isset($serendipity['dbPgsqlOIDS'])) {
$serendipity['dbPgsqlOIDS'] = true;
@serendipity_db_query('SET default_with_oids = true', true, 'both', false, false, false, true);
}
if (!$expectError && ($reportErr || !$serendipity['production'])) {
$serendipity['dbLastResult'] = pg_query($serendipity['dbConn'], $sql);
} else {
$serendipity['dbLastResult'] = @pg_query($serendipity['dbConn'], $sql);
}
if (!$serendipity['dbLastResult']) {
if (!$expectError && !$serendipity['production']) {
print "<span class='msg_error'>Error in $sql</span>";
print pg_last_error($serendipity['dbConn']) . "<BR/>\n";
if (function_exists('debug_backtrace')) {
highlight_string(var_export(debug_backtrace(), 1));
}
print "<pre>$sql</pre>";
}
return $type_map['false'];
}
if ($serendipity['dbLastResult'] === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
$n = pg_num_rows($serendipity['dbLastResult']);
switch ($n) {
case 0:
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
case 1:
if ($single) {
return pg_fetch_array($serendipity['dbLastResult'], 0, $result_type);
}
default:
$rows = array();
for ($i = 0; $i < $n; $i++) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
$row = pg_fetch_array($serendipity['dbLastResult'], $i, $result_type);
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = pg_fetch_array($serendipity['dbLastResult'], $i, $result_type);
}
}
return $rows;
}
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query) {
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}',
'{FULLTEXT}', '{BOOLEAN}', 'int(1)', 'int(10)', 'int(11)', 'int(4)', '{UTF_8}', '{TEXT}');
static $replace = array('SERIAL', 'primary key', '', '', 'BOOLEAN NOT NULL', 'int2',
'int4', 'int4', 'int4', '', 'text');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs) {
global $serendipity;
if (!function_exists('pg_connect')) {
$errs[] = 'No PostgreSQL extension found. Please check your webserver installation or contact your systems administrator regarding this problem.';
return false;
}
$serendipity['dbConn'] = pg_connect(
sprintf(
'%sdbname=%s user=%s password=%s',
strlen($hash['dbHost']) ? ('host=' . $hash['dbHost'] . ' ') : '',
$hash['dbName'],
$hash['dbUser'],
$hash['dbPass']
)
);
if (!$serendipity['dbConn']) {
$errs[] = 'Could not connect to database; check your settings.';
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return '(' . str_replace(', ', '||', $string) . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

View File

@ -1,388 +0,0 @@
<?php
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
if (!function_exists('sqlite_open')) {
@dl('sqlite.so');
@dl('sqlite.dll');
}
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
serendipity_db_query('begin transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
if ($commit){
serendipity_db_query('commit transaction');
}else{
serendipity_db_query('rollback transaction');
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect()
{
global $serendipity;
if (isset($serendipity['dbConn'])) {
return $serendipity['dbConn'];
}
if (isset($serendipity['dbPersistent']) && $serendipity['dbPersistent']) {
$function = 'sqlite_popen';
} else {
$function = 'sqlite_open';
}
if (defined('S9Y_DATA_PATH')) {
$serendipity['dbConn'] = $function(S9Y_DATA_PATH . $serendipity['dbName'] . '.db');
} else {
$serendipity['dbConn'] = $function($serendipity['dbName'] . '.db');
}
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
return str_replace($search, $replace, $string);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows()
{
global $serendipity;
return sqlite_changes($serendipity['dbConn']);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows()
{
global $serendipity;
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite_changes($serendipity['dbConn']);
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows()
{
global $serendipity;
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite_changes($serendipity['dbConn']);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id()
{
global $serendipity;
return sqlite_last_insert_rowid($serendipity['dbConn']);
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
function serendipity_db_sqlite_fetch_array($res, $type = SQLITE_BOTH)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
$row = sqlite_fetch_array($res, $type);
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
foreach ($row AS $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$row[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
return $row;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach($search_ids AS $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignored on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = true, $assocKey = false, $assocVal = false, $expectError = false)
{
global $serendipity;
$type_map = array(
'assoc' => SQLITE_ASSOC,
'num' => SQLITE_NUM,
'both' => SQLITE_BOTH,
'true' => true,
'false' => false
);
static $debug = false;
if ($debug) {
// Open file and write directly. In case of crashes, the pointer needs to be killed.
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE QUERY: ' . $sql . "\n\n");
fclose($fp);
}
if ($reportErr && !$expectError) {
$res = sqlite_query($sql, $serendipity['dbConn']);
} else {
$res = @sqlite_query($sql, $serendipity['dbConn']);
}
if (!$res) {
if (!$expectError && !$serendipity['production']) {
var_dump($res);
var_dump($sql);
$msg = "problem with query";
return $msg;
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] [ERROR] ' . "\n\n");
fclose($fp);
}
return $type_map['false'];
}
if ($res === true) {
return $type_map['true'];
}
if (sqlite_num_rows($res) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
} else {
$rows = array();
while (($row = serendipity_db_sqlite_fetch_array($res, $type_map[$result_type]))) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE RESULT: ' . print_r($rows, true). "\n\n");
fclose($fp);
}
if ($single && count($rows) == 1) {
return $rows[0];
}
return $rows;
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs)
{
global $serendipity;
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (!function_exists('sqlite_open')) {
$errs[] = 'SQLite extension not installed. Run "pear install sqlite" on your webserver or contact your systems administrator regarding this problem.';
return false;
}
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $serendipity['serendipityPath'] . $dbName . '.db';
}
$serendipity['dbConn'] = sqlite_open($dbfile);
if ($serendipity['dbConn']) {
return true;
}
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
return ' LIMIT ' . $limitstring;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return 'concat(' . $string . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

View File

@ -1,397 +0,0 @@
<?php
# $Id: sqlite.inc.php 1670 2007-04-10 13:23:34Z garvinhicking $
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
// SQLite3 only fetches by assoc, we will emulate the other result types
define(SQLITE3_ASSOC, 0);
define(SQLITE3_NUM, 1);
define(SQLITE3_BOTH, 2);
if (!function_exists('sqlite3_open')) {
@dl('sqlite.so');
@dl('sqlite.dll');
}
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
serendipity_db_query('begin transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
if ($commit){
serendipity_db_query('commit transaction');
}else{
serendipity_db_query('rollback transaction');
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect()
{
global $serendipity;
if (isset($serendipity['dbConn'])) {
return $serendipity['dbConn'];
}
// SQLite3 doesn't support persistent connections
$serendipity['dbConn'] = sqlite3_open((defined('S9Y_DATA_PATH') ? S9Y_DATA_PATH : $serendipity['serendipityPath']) . $serendipity['dbName'] . '.db');
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
return str_replace($search, $replace, $string);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows()
{
global $serendipity;
return sqlite3_changes($serendipity['dbConn']);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows()
{
global $serendipity;
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite3_changes($serendipity['dbConn']);
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows()
{
global $serendipity;
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite3_changes($serendipity['dbConn']);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id()
{
global $serendipity;
return sqlite3_last_insert_rowid($serendipity['dbConn']);
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
function serendipity_db_sqlite_fetch_array($res, $type = SQLITE3_BOTH)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
$row = sqlite3_fetch_array($res);
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
foreach ($row AS $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$row[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
if ($type == SQLITE3_NUM)
$frow = array();
else
$frow = $row;
if ($type != SQLITE3_ASSOC) {
$i = 0;
foreach($row AS $k => $v) {
$frow[$i] = $v;
$i++;
}
}
return $frow;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach($search_ids AS $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = true, $assocKey = false, $assocVal = false, $expectError = false)
{
global $serendipity;
$type_map = array(
'assoc' => SQLITE3_ASSOC,
'num' => SQLITE3_NUM,
'both' => SQLITE3_BOTH,
'true' => true,
'false' => false
);
static $debug = false;
if ($debug) {
// Open file and write directly. In case of crashes, the pointer needs to be killed.
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE QUERY: ' . $sql . "\n\n");
fclose($fp);
}
if ($reportErr && !$expectError) {
$res = sqlite3_query($serendipity['dbConn'], $sql);
} else {
$res = @sqlite3_query($serendipity['dbConn'], $sql);
}
if (!$res) {
if (!$expectError && !$serendipity['production']) {
var_dump($res);
var_dump($sql);
$msg = "problem with query";
return $msg;
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] [ERROR] ' . "\n\n");
fclose($fp);
}
return $type_map['false'];
}
if ($res === true) {
return $type_map['true'];
}
$rows = array();
while (($row = serendipity_db_sqlite_fetch_array($res, $type_map[$result_type]))) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE RESULT: ' . print_r($rows, true). "\n\n");
fclose($fp);
}
if ($single && count($rows) == 1) {
return $rows[0];
}
if (count($rows) == 0) {
if ($single)
return $type_map['false'];
return $type_map['true'];
}
return $rows;
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs)
{
global $serendipity;
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (!function_exists('sqlite3_open')) {
$errs[] = 'SQLite extension not installed. Run "pear install sqlite" on your webserver or contact your systems administrator regarding this problem.';
return false;
}
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $serendipity['serendipityPath'] . $dbName . '.db';
}
$serendipity['dbConn'] = sqlite3_open($dbfile);
if ($serendipity['dbConn']) {
return true;
}
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER AUTOINCREMENT', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
$query = str_replace('INTEGER AUTOINCREMENT PRIMARY KEY', 'INTEGER PRIMARY KEY AUTOINCREMENT', $query);
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
return ' LIMIT ' . $limitstring;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return 'concat(' . $string . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

View File

@ -1,412 +0,0 @@
<?php
# $Id: sqlite.inc.php 1670 2007-04-10 13:23:34Z garvinhicking $
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
// SQLite3 only fetches by assoc, we will emulate the other result types
define(SQLITE3_ASSOC, 0);
define(SQLITE3_NUM, 1);
define(SQLITE3_BOTH, 2);
if (!class_exists('SQLite3')) {
@dl('sqlite3.so');
@dl('sqlite3.dll');
}
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction(){
serendipity_db_query('begin transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit){
if ($commit){
serendipity_db_query('commit transaction');
}else{
serendipity_db_query('rollback transaction');
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect()
{
global $serendipity;
if (isset($serendipity['dbConn'])) {
return $serendipity['dbConn'];
}
// SQLite3 doesn't support persistent connections
$serendipity['dbConn'] = new SQLite3((defined('S9Y_DATA_PATH') ? S9Y_DATA_PATH : $serendipity['serendipityPath']) . $serendipity['dbName'] . '.db');
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($string)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
return str_replace($search, $replace, $string);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows()
{
global $serendipity;
return $serendipity['dbConn']->changes();
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows()
{
global $serendipity;
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return $serendipity['dbConn']->changes();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows()
{
global $serendipity;
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return $serendipity['dbConn']->changes($serendipity['dbConn']);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
function serendipity_db_insert_id()
{
global $serendipity;
return $serendipity['dbConn']->lastInsertRowID();
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
function serendipity_db_sqlite_fetch_array($res, $type = SQLITE3_BOTH)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
try {
$row = $res->fetchArray();
} catch (Exception $e) {
$row = false;
echo "SQLITE-EXCEPTION: " . $e->getMessage() . "\n";
}
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
foreach ($row AS $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$row[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
if ($type == SQLITE3_NUM)
$frow = array();
else
$frow = $row;
if ($type != SQLITE3_ASSOC) {
$i = 0;
foreach($row AS $k => $v) {
$frow[$i] = $v;
$i++;
}
}
return $frow;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach($search_ids AS $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = true, $assocKey = false, $assocVal = false, $expectError = false)
{
global $serendipity;
$type_map = array(
'assoc' => SQLITE3_ASSOC,
'num' => SQLITE3_NUM,
'both' => SQLITE3_BOTH,
'true' => true,
'false' => false
);
static $debug = false;
if ($debug) {
// Open file and write directly. In case of crashes, the pointer needs to be killed.
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE QUERY: ' . $sql . "\n\n");
fclose($fp);
}
if ($reportErr && !$expectError) {
$res = $serendipity['dbConn']->query($sql);
} else {
$res = @$serendipity['dbConn']->query($sql);
}
if (!$res) {
if (!$expectError && !$serendipity['production']) {
var_dump($res);
var_dump($sql);
$msg = "problem with query";
return $msg;
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] [ERROR] ' . "\n\n");
fclose($fp);
}
return $type_map['false'];
}
if (!preg_match('@^SELECT@imsU', trim($sql))) {
// Everything that is not SELECT will not return rows.
// SQLite3 OO will always return an object though.
if ($serendipity['dbConn']->lastErrorCode() > 0) {
echo "SQLITE-ERROR: " . $serendipity['dbConn']->lastErrorMsg() . "<br />\n";
return $type_map['false'];
} else {
return $type_map['true'];
}
}
$rows = array();
while (($row = serendipity_db_sqlite_fetch_array($res, $type_map[$result_type]))) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE RESULT: ' . print_r($rows, true). "\n\n");
fclose($fp);
}
if ($single && count($rows) == 1) {
return $rows[0];
}
if (count($rows) == 0) {
if ($single)
return $type_map['false'];
return $type_map['true'];
}
return $rows;
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs)
{
global $serendipity;
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (!class_exists('SQLite3')) {
$errs[] = 'SQLite extension not installed. Available on PHP 5.4+.';
return false;
}
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $serendipity['serendipityPath'] . $dbName . '.db';
}
$serendipity['dbConn'] = new SQLite3($dbfile);
if ($serendipity['dbConn']) {
return true;
}
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER AUTOINCREMENT', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
$query = str_replace('INTEGER AUTOINCREMENT PRIMARY KEY', 'INTEGER PRIMARY KEY AUTOINCREMENT', $query);
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
return ' LIMIT ' . $limitstring;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
return 'concat(' . $string . ')';
}
/* vim: set sts=4 ts=4 expandtab : */

View File

@ -1,558 +0,0 @@
<?php
# mysql_sqlrelay.inc.php modified from mysql.inc.php 2007-10-06
# dantemason@gmail.com
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
function serendipity_db_begin_transaction() {
global $serendipity;
$type_of_database = sqlrcon_identify($serendipity['dbConn']);
switch($type_of_database) {
case 'mysql':
$sqlstr = 'start transaction';
break;
case 'postgresql':
$sqlstr = 'begin work';
break;
case 'sqlite':
$sqlstr = 'begin transaction';
break;
default:
$sqlstr = 'start transaction';
break;
}
serendipity_db_query($sqlstr);
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
function serendipity_db_end_transaction($commit) {
global $serendipity;
if ($commit) {
sqlrcon_commit($serendipity['dbConn']);
} else {
sqlrcon_rollback($serendipity['dbConn']);
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
function serendipity_db_in_sql($col, &$search_ids, $type = ' OR ') {
global $serendipity;
if (sqlrcon_identify($serendipity['dbConn']) == "sqlite") {
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach($search_ids AS $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
} else {
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
function generate_resultset($cursor, $result_type = 'sqlr_BOTH') {
$return_row = array();
for ($r_row = 0, $max_r = sqlrcur_rowCount($cursor) ; $r_row < $max_r ; $r_row++) {
for ($r_col=0, $max_rc = sqlrcur_colCount($cursor); $r_col < $max_rc ; $r_col++) {
if ($result_type == 'sqlr_ASSOC') {
$return_row[sqlrcur_getColumnName($cursor, $r_col)] = sqlrcur_getField($cursor, $r_row, $r_col);
}else{
$return_row[$r_row][$r_col] = sqlrcur_getField($cursor, $r_row,$r_col);
$return_row[$r_row][sqlrcur_getColumnName($cursor, $r_col)] = $return_row[$r_row][$r_col];
}
}
}
return $return_row;
}
function &serendipity_db_query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false) {
global $serendipity;
$type_map = array(
'assoc' => sqlr_ASSOC,
'num' => sqlr_NUM,
'both' => sqlr_BOTH,
'true' => true,
'false' => false
);
static $benchmark = false;
// highlight_string(var_export($sql, 1));
if (!is_resource($serendipity['dbConn'])) {
return false;
}
$cur = sqlrcur_alloc($serendipity['dbConn']);
$serendipity['dbCursor'] = $cur;
if ($benchmark) {
$start = microtime_float();
}
if ($expectError) {
$c = sqlrcur_sendQuery($cur, $sql);
} else {
$c = sqlrcur_sendQuery($cur, $sql);
}
if ($benchmark) {
$end = microtime_float();
$cur = sqlrcur_alloc($serendipity['dbConn']);
$sql_b="INSERT INTO BLOGLOG (request, timestamp, sql, exec_time, ip) VALUES ('" . serendipity_db_escape_string($_SERVER['REQUEST_URI']) . "', NOW(), '" . serendipity_db_escape_string($sql) . "', '" . (number_format($end-$start, 10)) . "', '" . serendipity_db_escape_string($_SERVER['REMOTE_ADDR']) . "')";
$c = sqlrcur_sendQuery($cur, $sql_b);
$psql = $sql;
$psql = preg_replace('@[0-9]{10}@', 'TIMESTAMP', $psql);
$sql_U="UPDATE BLOGLOG_TOTAL SET counter = counter + 1 WHERE sql = '" . serendipity_db_escape_string($psql) . "'";
$c = sqlrcur_sendQuery($cur, $sql_U);
if (sqlrcur_affectedRows() < 1) {
$sql_i="INSERT INTO BLOGLOG_TOTAL (sql, counter) VALUES ('" . serendipity_db_escape_string($psql) . "', 1)";
$c = sqlrcur_sendQuery($cur,$sql_i);
}
}
if (!$expectError && sqlrcur_errorMessage($cur) != '') {
$msg = '<pre>' . serendipity_specialchars($sql) . '</pre> / ' . serendipity_specialchars(sqlrcur_errorMessage($cur));
return $msg;
}
if (!$c) {
if (!$expectError && !$serendipity['production']) {
print '<pre>' . serendipity_specialchars($sql) . '</pre> / ' . serendipity_specialchars(sqlrcur_errorMessage($cur));
if (function_exists('debug_backtrace') && $reportErr == true) {
highlight_string(var_export(debug_backtrace(), 1));
}
}
return $type_map['false'];
}
if ($c === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
switch(sqlrcur_rowCount($cur)) {
case 0:
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
case 1:
if ($single) {
$row = generate_resultset($cur, $result_type);
if ($result_type != 'sqlr_ASSOC') {
$row=$row[0];
}
return $row;
}
default:
if ($single) {
return generate_resultset($cur, $result_type);
}
$row=generate_resultset($cur);
$rows=array();
for($idx=0, $idxc = count($row); $idx < $idxc ; $idx++) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$assocKey] = $row[$idx][$assocKey];
} else {
$rows[$row[$idx][$assocKey]] = $row[$idx][$assocVal];
}
} else {
$rows = $row;
}
}
return $rows;
}
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*
* If you insert multiple rows using a single INSERT statement,
* LAST_INSERT_ID() returns the value generated for the first inserted row only.
*/
function serendipity_db_insert_id($table = '', $id = '') {
global $serendipity;
$type_of_database = sqlrcon_identify($serendipity['dbConn']);
switch($type_of_database) {
case 'mysql':
$sqlstr='SELECT LAST_INSERT_ID()';
break;
case 'postgresql':
$sqlstr = "SELECT currval('{$serendipity['dbPrefix']}{$table}_{$id}_seq'::text) AS {$id}";
break;
case 'sqlite':
$sqlstr = 'SELECT last_insert_rowid()';
break;
default:
$sqlstr = 'SELECT LAST_INSERT_ID()';
}
$row = serendipity_db_query($sqlstr, true);
return $row[0];
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
function serendipity_db_affected_rows() {
global $serendipity;
/* int sqlrcur_affectedRows(int sqlrcurref)
* Returns the number of rows that were updated, inserted or deleted by the query.
* Not all databases support this call.
* Don't use it for applications which are designed to be portable across databases.
* -1 is returned by databases which don't support this option.
*/
return sqlrcur_affectedRows($serendipity['dbCursor']);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
function serendipity_db_updated_rows() {
/*
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysql_info(),
$arr);
// mysql_affected_rows returns 0 if rows were matched but not changed.
// mysql_info returns rows matched AND rows changed
return $arr[2];
*/
return serendipity_db_affected_rows();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
function serendipity_db_matched_rows() {
/*
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysql_info(),
$arr);
// mysql_affected_rows returns 0 if rows were matched but not changed.
// mysql_info returns rows matched AND rows changed
return $arr[1];
*/
return serendipity_db_affected_rows();
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
function serendipity_db_escape_string($str) {
global $serendipity;
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
$type_of_database = sqlrcon_identify($serendipity['dbConn']);
switch($type_of_database) {
case 'mysql':
if (function_exists('mysql_real_escape_string')) {
$rtnstr = mysql_real_escape_string($str, $serendipity['dbConn']);
} else {
$rtnstr = addslashes($str);
}
break;
case 'postgresql':
if (function_exists('pg_escape_string')) {
$rtnstr = pg_escape_string($str);
} else {
$rtnstr = addslashes($str);
}
break;
case 'sqlite':
$rtnstr = str_replace($search, $replace, $str);
break;
default:
$rtnstr = addslashes($str);
}
return $rtnstr;
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
function serendipity_db_limit($start, $offset) {
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
function serendipity_db_limit_sql($limitstring) {
global $serendipity;
$type_of_database = sqlrcon_identify($serendipity['dbConn']);
switch($type_of_database) {
case "mysql":
return ' LIMIT ' . $limitstring;
case "postgresql":
$limit_split = explode(',', $limitstring);
if (count($limit_split) > 1) {
$limit = ' LIMIT ' . $limit_split[0] . ' OFFSET ' . $limit_split[1];
} else {
$limit = ' LIMIT ' . $limit_split[0];
}
return $limit;
default:
return ' LIMIT ' . $limitstring;
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
function serendipity_db_connect() {
global $serendipity;
if (isset($serendipity['dbConn'])) {
return $serendipity['dbConn'];
}
if (isset($serendipity['dbPersistent']) && $serendipity['dbPersistent']) {
$function = 'sqlrcon_alloc';
} else {
$function = 'sqlrcon_alloc';
}
#$serendipity['dbHost']="localhost:9000"
$dbHostPort=explode(":", $serendipity['dbHost']);
$serendipity['dbConn'] = $function($dbHostPort[0], $dbHostPort[1], "", $serendipity['dbUser'], $serendipity['dbPass'], 0, 1);
sqlrcon_debugOff($serendipity['dbConn']);
if( sqlrcon_identify($serendipity['dbConn']) == "mysql") {
serendipity_db_reconnect();
}
return $serendipity['dbConn'];
}
function serendipity_db_reconnect() {
global $serendipity;
if (isset($serendipity['dbCharset'])) {
serendipity_db_query("SET NAMES " . $serendipity['dbCharset']);
@define('SQL_CHARSET_INIT', true);
} elseif (defined('SQL_CHARSET') && $serendipity['dbNames'] && !defined('SQL_CHARSET_INIT')) {
serendipity_db_query("SET NAMES " . SQL_CHARSET);
}
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
function serendipity_db_schema_import($query) {
global $serendipity;
$type_of_database = sqlrcon_identify($serendipity['dbConn']);
switch($type_of_database) {
case "mysql":
static $search = array('{AUTOINCREMENT}', '{PRIMARY}',
'{UNSIGNED}', '{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', '{TEXT}');
static $replace = array('int(11) not null auto_increment', 'primary key',
'unsigned' , 'FULLTEXT', 'FULLTEXT', 'enum (\'true\', \'false\') NOT NULL default \'true\'', 'LONGTEXT');
static $is_utf8 = null;
if ($is_utf8 === null) {
$search[] = '{UTF_8}';
if ((isset($_POST['charset']) && $_POST['charset'] == 'UTF-8/') ||
$serendipity['charset'] == 'UTF-8/' ||
$serendipity['POST']['charset'] == 'UTF-8/' ||
LANG_CHARSET == 'UTF-8' ) {
$replace[] = '/*!40100 CHARACTER SET utf8 COLLATE utf8_unicode_ci */';
} else {
$replace[] = '';
}
}
break;
case "postgresql":
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}',
'{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', 'int(1)', 'int(10)', 'int(11)', 'int(4)', '{UTF_8}', '{TEXT}');
static $replace = array('SERIAL', 'primary key', '',
'', '', 'BOOLEAN NOT NULL', 'int2', 'int4', 'int4', 'int4', '', 'text');
break;
case "sqlite":
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER', 'PRIMARY KEY', '', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
break;
default:
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query{0} == '@') {
// Errors are expected to happen (like duplicate index creation)
return serendipity_db_query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return serendipity_db_query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
function serendipity_db_probe($hash, &$errs) {
global $serendipity;
$c = null;
if (!function_exists('sqlrcon_alloc')) {
$errs[] = 'No sql_relay extension found. Please check your webserver installation or contact your systems administrator regarding this problem.';
return false;
}
if (!($c=@sqlrcon_alloc($hash['dbHost'], '', '', $hash['dbUser'], $hash['dbPass'], 0, 5))) {
$errs[] = 'Could not connect to database; check your settings.';
return false;
}
$serendipity['dbConn'] = $c;
/* which db should be used is defined in sqlrelay.conf */
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
function serendipity_db_concat($string) {
global $serendipity;
$type_of_database = sqlrcon_identify($serendipity['dbConn']);
switch($type_of_database) {
case 'mysql':
return 'concat(' . $string . ')';
case 'postgresql':
return '(' . str_replace(', ', '||', $string) . ')';
case 'sqlite':
return 'concat(' . $string . ')';
default:
return 'concat(' . $string . ')';
}
}
/* vim: set sts=4 ts=4 expandtab : */

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
abstract class DbAbstract
{
protected $serendipity;
protected $db_conn;
protected $db_hostname;
protected $db_username;
protected $db_password;
protected $db_name;
protected $db_prefix;
protected $db_type;
public function __construct(&$serendipity)
{
$this->serendipity =& $serendipity;
$this->db_type = $serendipity['dbType'];
$this->db_hostname = $serendipity['dbHost'];
$this->db_username = $serendipity['dbUser'];
$this->db_password = $serendipity['dbPass'];
$this->db_name = $serendipity['dbName'];
$this->db_prefix = $serendipity['dbPrefix'];
}
public function connect()
{
}
public function reconnect()
{
}
public function beginTransaction()
{
}
public function endTransaction(bool $commit)
{
}
/**
* Returns an escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
return $string;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$searchIds, $type = ' OR ')
{
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
public function insertId($table = '', $id = '')
{
}
/**
* Perform a query to update the data of a certain table row
*
* You can pass the tablename and an array of keys to select the row,
* and an array of values to UPDATE in the DB table.
*
* @access public
* @param string Name of the DB table
* @param array Input array that controls the "WHERE" condition part. Pass it an associative array like array('key1' => 'value1', 'key2' => 'value2') to get a statement like "WHERE key1 = value1 AND key2 = value2". Escaping is done automatically in this function.
* @param array Input array that controls the "SET" condition part. Pass it an associative array like array('key1' => 'value1', 'key2' => 'value2') to get a statement like "SET key1 = value1, key2 = value2". Escaping is done automatically in this function.
* @param string What do do with the SQL query (execute, display)
* @return array Returns the result of the SQL query
*/
public function update($table, $keys, $values, $action = 'execute')
{
$set = '';
foreach ($values as $k => $v) {
if (strlen($set)) {
$set .= ', ';
}
$set .= $k . '=\'' . $this->escapeString($v) . '\'';
}
$where = '';
foreach ($keys as $k => $v) {
if (strlen($where)) {
$where .= ' AND ';
}
$where .= $k . '=\'' . $this->escapeString($v) . '\'';
}
if (strlen($where)) {
$where = " WHERE $where";
}
$q = "UPDATE {$this->db_prefix}$table SET $set $where";
if ($action == 'execute') {
return $this->query($q);
} else {
return $q;
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values depending on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param bool Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param bool If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param bool If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignored on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
}
/**
* Perform a query to insert an associative array into a specific SQL table
*
* You can pass a tablename and an array of input data to insert into an array.
*
* @access public
* @param string Name of the SQL table
* @param array Associative array of keys/values to insert into the table. Escaping is done automatically.
* @param string What do do with the SQL query (execute, display)
* @return array Returns the result of the SQL query
*/
public function insert($table, $values, $action = 'execute')
{
$names = implode(',', array_keys($values));
$vals = '';
foreach ($values as $k => $v) {
if (strlen($vals)) {
$vals .= ', ';
}
$vals .= '\'' . $this->escapeString($v) . '\'';
}
$q = "INSERT INTO {$this->db_prefix}$table ($names) values ($vals)";
if ($action == 'execute') {
return $this->query($q);
} else {
return $q;
}
}
/**
* Check whether an input value corresponds to a TRUE/FALSE option in the SQL database.
*
* Because older DBs could not store TRUE/FALSE values to be restored into a PHP variable,
* this function tries to detect what the return code of a SQL column is, and convert it
* to a PHP native boolean.
*
* Values that will be recognized as TRUE are 'true', 't' and '1'.
*
* @access public
* @param string input value to compare
* @return boolean boolean conversion of the input value
*/
public function bool($val)
{
if (($val === true) || ($val == 'true') || ($val == 't') || ($val == '1')) {
return true;
}
#elseif (($val === false || $val == 'false' || $val == 'f'))
return false;
}
/**
* Prepares a Serendipity query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
}
/**
* Return a SQL statement for a time interval or timestamp, specific to certain SQL backends
*
* @access public
* @param string Indicate whether to return a timestamp, or an Interval
* @param int The interval one might want to use, if Interval return was selected
* @return string SQL statement
*/
public function getInterval($val, $ival = 900)
{
switch ($this->db_type) {
case 'sqlite':
case 'sqlite3':
case 'sqlite3oo':
case 'pdo-sqlite':
$interval = $ival;
$ts = time();
break;
case 'pdo-postgres':
case 'postgres':
$interval = "interval '$ival'";
$ts = 'NOW()';
break;
case 'mysql':
case 'mysqli':
default:
$interval = $ival;
$ts = 'NOW()';
break;
}
switch ($val) {
case 'interval':
return $interval;
default:
case 'ts':
return $ts;
}
}
/**
* Operates on an array to prepare it for SQL usage.
*
* @access public
* @param string Concatenation character
* @param array Input array
* @param string How to convert (int: Only numbers, string: serendipity_db_escape_String)
* @return string Imploded string
*/
public function implode($string, &$array, $type = 'int')
{
$new_array = array();
if (!is_array($array)) {
return '';
}
foreach ($array as $idx => $key) {
if ($type == 'int') {
$new_array[$idx] = (int)$key;
} else {
$new_array[$idx] = $this->escapeString($key);
}
}
$string = implode($string, $new_array);
return $string;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Exception;
class DbFactory
{
private static $db_instance = null;
public static function createFromConfig(&$serendipity)
{
if (self::$db_instance !== null) {
// Already instantiated - return it
return self::$db_instance;
}
$config2class = [
'mysql' => 'Mysqli',
'mysqli' => 'Mysqli',
'pdo-postgres' => 'PdoPostgres',
'pdo-sqlite' => 'PdoSqlite',
'postgres' => 'Postgres',
'sqlite' => 'Sqlite',
'sqlite3' => 'Sqlite3',
'sqlite3oo' => 'Sqlite3oo',
'sqlrelay' => 'SqlRelay',
];
if (!array_key_exists($serendipity['dbType'], $config2class)) {
throw new Exception('Database type "' . $serendipity['dbType'] . '" not supported!');
}
// Name of database class
$dbClass = '\\Serendipity\\Database\\' . $config2class[$serendipity['dbType']] . 'Database';
self::$db_instance = new $dbClass($serendipity);
return self::$db_instance;
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
use Exception;
class MysqliDatabase extends DbAbstract
{
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$this->query('start transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
$this->query('commit');
}else{
$this->query('rollback');
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignored on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => MYSQLI_ASSOC,
'num' => MYSQLI_NUM,
'both' => MYSQLI_BOTH,
'true' => true,
'false' => false
);
if ($expectError) {
$c = @mysqli_query($this->db_conn, $sql);
} else {
$c = mysqli_query($this->db_conn, $sql);
}
if (!$expectError && mysqli_error($this->db_conn) != '') {
$msg = mysqli_error($this->db_conn);
return $msg;
}
if (!$c) {
if (!$expectError && !$this->serendipity['production']) {
print mysqli_error($this->db_conn);
if (function_exists('debug_backtrace') && $reportErr == true) {
highlight_string(var_export(debug_backtrace(), 1));
}
}
return $type_map['false'];
}
if ($c === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
switch(mysqli_num_rows($c)) {
case 0:
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
case 1:
if ($single) {
return mysqli_fetch_array($c, $result_type);
}
default:
if ($single) {
return mysqli_fetch_array($c, $result_type);
}
$rows = array();
while ($row = mysqli_fetch_array($c, $result_type)) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
return $rows;
}
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
public function insertId()
{
return mysqli_insert_id($this->db_conn);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
return mysqli_affected_rows($this->db_conn);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysqli_info($this->db_conn),
$arr
);
// mysqli_affected_rows returns 0 if rows were matched but not changed.
// mysqli_info returns rows matched
return $arr[1];
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysqli_info($this->db_conn),
$arr
);
// mysqli_affected_rows returns 0 if rows were matched but not changed.
// mysqli_info returns rows matched
return $arr[0];
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
return mysqli_escape_string($this->db_conn, $string);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
return ' LIMIT ' . $limitstring;
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
if (isset($this->db_conn)) {
return $this->db_conn;
}
$function = 'mysqli_connect';
$connparts = explode(':', $this->db_hostname);
if (!empty($connparts[1])) {
// A "hostname:port" connection was specified
$this->db_conn = $function($connparts[0], $this->db_username, $this->db_password, $this->db_name, $connparts[1]);
} else {
// Connect with default ports
$this->db_conn = $function($connparts[0], $this->db_username, $this->db_password);
}
mysqli_select_db($this->db_conn, $this->db_name);
$this->reconnect();
return $this->db_conn;
}
public function reconnect()
{
$use_charset = '';
if (isset($this->serendipity['dbCharset']) && !empty($this->serendipity['dbCharset'])) {
$use_charset = $this->serendipity['dbCharset'];
if (!defined('SQL_CHARSET_INIT')) { define('SQL_CHARSET_INIT', true); }
} elseif (defined('SQL_CHARSET') && $this->serendipity['dbNames'] && !defined('SQL_CHARSET_INIT')) {
$use_charset = SQL_CHARSET;
}
if ($use_charset != '') {
mysqli_set_charset($this->db_conn, $use_charset);
}
}
/**
* Prepares a Serendipity query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}',
'{UNSIGNED}', '{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', '{TEXT}');
static $replace = array('int(11) not null auto_increment', 'primary key',
'unsigned' , 'FULLTEXT', 'FULLTEXT', 'enum (\'true\', \'false\') NOT NULL default \'true\'', 'LONGTEXT');
$search[] = '{UTF_8}';
if ( $_POST['charset'] == 'UTF-8/' ||
$this->serendipity['charset'] == 'UTF-8/' ||
$this->serendipity['POST']['charset'] == 'UTF-8/' ||
LANG_CHARSET == 'UTF-8' ) {
if ($this->isUtf8mb4Ready()) {
$replace[] = 'ROW_FORMAT=DYNAMIC /*!40100 CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci */';
} else {
# in old versions we stick to the three byte pseudo utf8 to not trip
# over the max index restriction of 1000 bytes
$replace[] = '/*!40100 CHARACTER SET utf8 COLLATE utf8_unicode_ci */';
}
} else {
$replace[] = '';
}
if ($this->isUtf8mb4Ready()) {
# InnoDB enables us to use utf8mb4 with the higher max index size
$this->query("SET storage_engine=INNODB");
} else {
# Before 5.6.4/10.0.5 InnoDB did not support fulltext indexes, which we use,
# thus we stay with MyISAM here
$this->query("SET storage_engine=MYISAM");
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Check if we think that it is safe to ugprade to utf8mb4. This checks version numbers and applied settings.
* Depending on the version of mariadb/mysql we need to check either one or three settings. We check for
* innodb being available with fulltext index and large index support, so that our database scheme can work
*
* @return boolean Whether the database could support utf8mb4
*/
protected function isUtf8mb4Ready()
{
$mysql_version = mysqli_get_server_info($this->db_conn);
$maria = false;
if (strpos($mysql_version, 'MariaDB') !== false) {
$maria = true;
}
if ($maria) {
# maria trips up our version detection scheme by prepending 5.5.5 to newer versions
$mysql_version = str_replace('5.5.5-', '', $mysql_version);
}
if ($maria) {
# see https://mariadb.com/kb/en/innodb-file-format/ for when barracuda is available, and when it's the only option
# see https://docs.nextcloud.com/server/15/admin_manual/configuration_database/mysql_4byte_support.html for which
# variables we have to check to assume utf8mb4 it can work (with the large indexes we need)
if (version_compare($mysql_version, '10.3.1', '>=')) {
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_per_table
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
return $rows[0][1] == 'ON';
} catch (Exception $e) {
return false;
}
}
# see https://mariadb.com/kb/en/full-text-index-overview/. We need 10.0.5 to have fulltext indexes with innodb
if (version_compare($mysql_version, '10.0.5', '>=')) {
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_per_table
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_format
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_file_format'");
try {
if ($rows[0][1] != 'barracuda') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_large_prefix
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_large_prefix'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
}
return false; # version too old
}
# now we know it is not mariadb, but "real" mysql
# These versions might need to be changed based on testing feedback
if (version_compare($mysql_version, '8.0.0', '>=')) {
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
return $rows[0][1] == 'ON';
} catch (Exception $e) {
return false;
}
}
# see https://dev.mysql.com/doc/refman/5.6/en/innodb-fulltext-index.html. We need 5.6 for fulltext indexes
if (version_compare($mysql_version, '5.6', '>=')) {
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_per_table
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_file_per_table'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_file_format
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_file_format'");
try {
if ($rows[0][1] != 'barracuda') {
return false;
}
} catch (Exception $e) {
return false;
}
# see https://mariadb.com/kb/en/innodb-system-variables/#innodb_large_prefix
$rows = $this->query("SHOW VARIABLES LIKE 'innodb_large_prefix'");
try {
if ($rows[0][1] != 'ON') {
return false;
}
} catch (Exception $e) {
return false;
}
return true;
}
return false; # version too old
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
if (!function_exists('mysqli_connect')) {
$errs[] = 'No mySQLi extension found. Please check your webserver installation or contact your systems administrator regarding this problem.';
return false;
}
$function = 'mysqli_connect';
$connparts = explode(':', $hash['dbHost']);
if (!empty($connparts[1])) {
// A "hostname:port" connection was specified
$c = @$function($connparts[0], $hash['dbUser'], $hash['dbPass'], $hash['dbName'], $connparts[1]);
} else {
// Connect with default ports
$c = @$function($connparts[0], $hash['dbUser'], $hash['dbPass']);
}
if (!$c) {
$errs[] = 'Could not connect to database; check your settings.';
$errs[] = 'The mySQL error was: ' . serendipity_specialchars(mysqli_connect_error());
return false;
}
$this->db_conn = $c;
if ( !@mysqli_select_db($c, $hash['dbName']) ) {
$errs[] = 'The database you specified does not exist.';
$errs[] = 'The mySQL error was: ' . serendipity_specialchars(mysqli_error($c));
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return 'concat(' . $string . ')';
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
use PDO;
class PdoPostgresDatabase extends DbAbstract
{
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$this->db_conn->beginTransaction();
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
$this->db_conn->commit();
} else {
$this->db_conn->rollback();
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
$host = $port = '';
if (strlen($this->db_hostname)) {
if (false !== strstr($this->db_hostname, ':')) {
$tmp = explode(':', $this->db_hostname);
$host = "host={$tmp[0]};";
$port = "port={$tmp[1]};";
} else {
$host = "host={$this->db_hostname};";
}
}
$this->db_conn = new \PDO(
sprintf(
'pgsql:%sdbname=%s',
"$host$port",
$this->db_name
),
$this->db_username,
$this->db_password
);
return $this->db_conn;
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
return substr($this->db_conn->quote($string), 1, -1);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $offset . ', ' . $start;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
$limit_split = explode(',', $limitstring);
if (count($limit_split) > 1) {
$limit = ' LIMIT ' . $limit_split[0] . ' OFFSET ' . $limit_split[1];
} else {
$limit = ' LIMIT ' . $limit_split[0];
}
return $limit;
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
return $this->serendipity['dbSth']->rowCount();
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return $this->serendipity['dbSth']->rowCount();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return $this->serendipity['dbSth']->rowCount();
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
public function insertId($table = '', $id = '')
{
if (empty($table) || empty($id)) {
// BC - will/should never be called with empty parameters!
return $this->db_conn->lastInsertId();
} else {
$query = "SELECT currval('{$this->db_prefix}{$table}_{$id}_seq'::text) AS {$id}";
$res = $this->db_conn->prepare($query);
$res->execute();
foreach ($res->fetchAll(PDO::FETCH_ASSOC) as $row) {
return $row[$id];
}
return $this->db_conn->lastInsertId();
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => PDO::FETCH_ASSOC,
'num' => PDO::FETCH_NUM,
'both' => PDO::FETCH_BOTH,
'true' => true,
'false' => false
);
if (!$expectError && ($reportErr || !$this->serendipity['production'])) {
$this->serendipity['dbSth'] = $this->db_conn->prepare($sql);
} else {
$this->serendipity['dbSth'] = $this->db_conn->prepare($sql);
}
if (!$this->serendipity['dbSth']) {
if (!$expectError && !$this->serendipity['production']) {
print "<span class='msg_error'>Error in $sql</span>";
print $this->db_conn->errorInfo() . "<BR/>\n";
if (function_exists('debug_backtrace')) {
highlight_string(var_export(debug_backtrace(), 1));
}
print "<pre>$sql</pre>\n";
}
return $type_map['false'];
}
$this->serendipity['dbSth']->execute();
if ($this->serendipity['dbSth'] === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
$n = 0;
$rows = array();
foreach ($this->serendipity['dbSth']->fetchAll($result_type) as $row) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if (count($rows) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
}
if (count($rows) == 1 && $single) {
return $rows[0];
}
return $rows;
}
/**
* Prepares a Serendipity query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}',
'{FULLTEXT}', '{BOOLEAN}', 'int(1)', 'int(10)', 'int(11)', 'int(4)', '{UTF_8}', '{TEXT}');
static $replace = array('SERIAL', 'primary key', '', '', 'BOOLEAN NOT NULL', 'int2',
'int4', 'int4', 'int4', '', 'text');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
if (!in_array('pgsql', PDO::getAvailableDrivers())) {
$errs[] = 'PDO_PGSQL driver not avialable';
return false;
}
$this->db_conn = new PDO(
sprintf(
'pgsql:%sdbname=%s',
strlen($hash['dbHost']) ? ('host=' . $hash['dbHost'] . ';') : '',
$hash['dbName']
),
$hash['dbUser'],
$hash['dbPass']
);
if (!$this->db_conn) {
$errs[] = 'Could not connect to database; check your settings.';
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return '(' . str_replace(', ', '||', $string) . ')';
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
use PDO;
class PdoSqliteDatabase extends DbAbstract
{
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
$this->db_conn = new PDO(
'sqlite:' . (defined('S9Y_DATA_PATH') ? S9Y_DATA_PATH : $this->serendipity['serendipityPath']) . $this->db_name . '.db'
);
return $this->db_conn;
}
// TODO: Replace with proper Logging object
public function logmsg($msgstr)
{
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] ' . $msgstr . "\n\n");
fclose($fp);
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iterate through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
protected function fetchArray($row, $type = PDO::FETCH_ASSOC)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
$newrow = array();
foreach ($row as $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$newrow[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
return $newrow;
}
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction(){
$this->db_conn->beginTransaction();
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction(bool $commit)
{
if ($commit){
$this->db_conn->commit();
} else {
$this->db_conn->rollback();
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$searchIds, $type = ' OR ')
{
$sql = array();
if (!is_array($searchIds)) {
return false;
}
foreach ($searchIds as $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Returns an escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
return substr($this->db_conn->quote($string), 1, -1);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
return ' LIMIT ' . $limitstring;
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
// FIXME: Cache statement handler in this class?
return $this->serendipity['dbSth']->rowCount();
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
// FIXME: Cache statement handler in this class?
return $this->serendipity['dbSth']->rowCount();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
// FIXME: Cache statement handler in this class?
return $this->serendipity['dbSth']->rowCount();
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
public function insertId($table = '', $id = '')
{
return $this->db_conn->lastInsertId();
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => PDO::FETCH_ASSOC,
'num' => PDO::FETCH_NUM,
'both' => PDO::FETCH_BOTH,
'true' => true,
'false' => false
);
//serendipity_db_logmsg('SQLQUERY: ' . $sql);
if (!$expectError && ($reportErr || !$this->serendipity['production'])) {
$this->serendipity['dbSth'] = $this->db_conn->prepare($sql);
} else {
$this->serendipity['dbSth'] = $this->db_conn->prepare($sql);
}
if (!$this->serendipity['dbSth']) {
if (!$expectError && !$this->serendipity['production']) {
print "<span class='msg_error'>Error in $sql</span>";
print $this->db_conn->errorInfo() . "<BR/>\n";
if (function_exists('debug_backtrace')) {
highlight_string(var_export(debug_backtrace(), 1));
}
print "<pre>$sql</pre>";
}
return $type_map['false'];
}
$this->serendipity['dbSth']->execute();
if ($this->serendipity['dbSth'] === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
$rows = array();
foreach ($this->serendipity['dbSth']->fetchAll($result_type) as $row) {
$row = $this->fetchArray($row, $result_type);
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
//$this->logmsg('SQLRESULT: ' . print_r($rows,true));
if (count($rows) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
}
if (count($rows) == 1 && $single) {
return $rows[0];
}
return $rows;
}
/**
* Prepares a Serendipity query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER AUTOINCREMENT', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
$query = str_replace('INTEGER AUTOINCREMENT PRIMARY KEY', 'INTEGER PRIMARY KEY AUTOINCREMENT', $query);
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
if (!in_array('sqlite', PDO::getAvailableDrivers())) {
$errs[] = 'PDO_SQLITE driver not available';
return false;
}
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $this->serendipity['serendipityPath'] . $dbName . '.db';
}
$this->db_conn = new PDO(
'sqlite:' . $dbfile
);
if (!$this->db_conn) {
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return 'concat(' . $string . ')';
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
class PostgresDatabase extends DbAbstract
{
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$this->query('begin work');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
$this->query('commit');
} else {
$this->query('rollback');
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
if (isset($this->serendipity['dbPersistent']) && $this->serendipity['dbPersistent']) {
$function = 'pg_pconnect';
} else {
$function = 'pg_connect';
}
$host = $port = '';
if (strlen($this->db_hostname)) {
if (false !== strstr($this->db_hostname, ':')) {
$tmp = explode(':', $this->db_hostname);
$host = "host={$tmp[0]} ";
$port = "port={$tmp[1]} ";
} else {
$host = "host={$this->db_hostname} ";
}
}
$this->db_conn = $function(
sprintf(
'%sdbname=%s user=%s password=%s',
"$host$port",
$this->db_name,
$this->db_username,
$this->db_password
)
);
return $this->db_conn;
}
/**
* Returns an escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
return pg_escape_string($string);
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $offset . ', ' . $start;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
$limit_split = explode(',', $limitstring);
if (count($limit_split) > 1) {
$limit = ' LIMIT ' . $limit_split[0] . ' OFFSET ' . $limit_split[1];
} else {
$limit = ' LIMIT ' . $limit_split[0];
}
return $limit;
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
return pg_affected_rows($this->serendipity['dbLastResult']);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return pg_affected_rows($this->serendipity['dbLastResult']);
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
// it is unknown whether pg_affected_rows returns number of rows
// UPDATED or MATCHED on an UPDATE statement.
return pg_affected_rows($this->serendipity['dbLastResult']);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @param string Name of the table to get a INSERT ID for
* @param string Name of the column to get a INSERT ID for
* @return int Value of the auto-increment column
*/
public function insertId($table = '', $id = '')
{
if (empty($table) || empty($id)) {
// BC - will/should never be called with empty parameters!
return pg_last_oid($this->serendipity['dbLastResult']);
} else {
$query = "SELECT currval('{$this->db_prefix}{$table}_{$id}_seq'::text) AS {$id}";
$res = pg_query($this->db_conn, $query);
if (pg_num_rows($res)) {
$insertId = pg_fetch_array($res, 0, PGSQL_ASSOC);
return $insertId[$id];
} else {
return pg_last_oid($this->serendipity['dbLastResult']); // BC - should not happen!
}
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => PGSQL_ASSOC,
'num' => PGSQL_NUM,
'both' => PGSQL_BOTH,
'true' => true,
'false' => false
);
if (!isset($this->serendipity['dbPgsqlOIDS'])) {
$this->serendipity['dbPgsqlOIDS'] = true;
@$this->query('SET default_with_oids = true', true, 'both', false, false, false, true);
}
if (!$expectError && ($reportErr || !$this->serendipity['production'])) {
$this->serendipity['dbLastResult'] = pg_query($this->db_conn, $sql);
} else {
$this->serendipity['dbLastResult'] = @pg_query($this->db_conn, $sql);
}
if (!$this->serendipity['dbLastResult']) {
if (!$expectError && !$this->serendipity['production']) {
print "<span class='msg_error'>Error in $sql</span>";
print pg_last_error($this->db_conn) . "<BR/>\n";
if (function_exists('debug_backtrace')) {
highlight_string(var_export(debug_backtrace(), 1));
}
print "<pre>$sql</pre>";
}
return $type_map['false'];
}
if ($this->serendipity['dbLastResult'] === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
$n = pg_num_rows($this->serendipity['dbLastResult']);
switch ($n) {
case 0:
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
case 1:
if ($single) {
return pg_fetch_array($this->serendipity['dbLastResult'], 0, $result_type);
}
default:
$rows = array();
for ($i = 0; $i < $n; $i++) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
$row = pg_fetch_array($this->serendipity['dbLastResult'], $i, $result_type);
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = pg_fetch_array($this->serendipity['dbLastResult'], $i, $result_type);
}
}
return $rows;
}
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}',
'{FULLTEXT}', '{BOOLEAN}', 'int(1)', 'int(10)', 'int(11)', 'int(4)', '{UTF_8}', '{TEXT}');
static $replace = array('SERIAL', 'primary key', '', '', 'BOOLEAN NOT NULL', 'int2',
'int4', 'int4', 'int4', '', 'text');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
if (!function_exists('pg_connect')) {
$errs[] = 'No PostgreSQL extension found. Please check your webserver installation or contact your systems administrator regarding this problem.';
return false;
}
$this->db_conn = pg_connect(
sprintf(
'%sdbname=%s user=%s password=%s',
strlen($hash['dbHost']) ? ('host=' . $hash['dbHost'] . ' ') : '',
$hash['dbName'],
$hash['dbUser'],
$hash['dbPass']
)
);
if (!$this->db_conn) {
$errs[] = 'Could not connect to database; check your settings.';
return false;
}
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return '(' . str_replace(', ', '||', $string) . ')';
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
class SqlRelayDatabase extends DbAbstract
{
protected $db_cursor;
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$databaseType = sqlrcon_identify($this->db_conn);
switch ($databaseType) {
case 'mysql':
$sqlstr = 'start transaction';
break;
case 'postgresql':
$sqlstr = 'begin work';
break;
case 'sqlite':
$sqlstr = 'begin transaction';
break;
default:
$sqlstr = 'start transaction';
break;
}
$this->query($sqlstr);
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
sqlrcon_commit($this->db_conn);
} else {
sqlrcon_rollback($this->db_conn);
}
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
if (sqlrcon_identify($this->db_conn) == "sqlite") {
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach ($search_ids as $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
} else {
return $col . " IN (" . implode(', ', $search_ids) . ")";
}
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
protected function generateResultset($cursor, $result_type = 'sqlr_BOTH')
{
$return_row = array();
for ($r_row = 0, $max_r = sqlrcur_rowCount($cursor) ; $r_row < $max_r ; $r_row++) {
for ($r_col=0, $max_rc = sqlrcur_colCount($cursor); $r_col < $max_rc ; $r_col++) {
if ($result_type == 'sqlr_ASSOC') {
$return_row[sqlrcur_getColumnName($cursor, $r_col)] = sqlrcur_getField($cursor, $r_row, $r_col);
} else {
$return_row[$r_row][$r_col] = sqlrcur_getField($cursor, $r_row,$r_col);
$return_row[$r_row][sqlrcur_getColumnName($cursor, $r_col)] = $return_row[$r_row][$r_col];
}
}
}
return $return_row;
}
public function &query($sql, $single = false, $result_type = "both", $reportErr = false, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => sqlr_ASSOC,
'num' => sqlr_NUM,
'both' => sqlr_BOTH,
'true' => true,
'false' => false
);
static $benchmark = false;
// highlight_string(var_export($sql, 1));
if (!is_resource($this->db_conn)) {
return false;
}
$cur = sqlrcur_alloc($this->db_conn);
$this->db_cursor = $cur;
if ($benchmark) {
$start = microtime_float();
}
if ($expectError) {
$c = sqlrcur_sendQuery($cur, $sql);
} else {
$c = sqlrcur_sendQuery($cur, $sql);
}
if ($benchmark) {
$end = microtime_float();
$cur = sqlrcur_alloc($this->db_conn);
$sql_b = "INSERT INTO BLOGLOG (request, timestamp, sql, exec_time, ip) VALUES ('" . $this->escapeString($_SERVER['REQUEST_URI']) . "', NOW(), '" . $this->escapeString($sql) . "', '" . (number_format($end-$start, 10)) . "', '" . $this->escapeString($_SERVER['REMOTE_ADDR']) . "')";
$c = sqlrcur_sendQuery($cur, $sql_b);
$psql = $sql;
$psql = preg_replace('@[0-9]{10}@', 'TIMESTAMP', $psql);
$sql_U = "UPDATE BLOGLOG_TOTAL SET counter = counter + 1 WHERE sql = '" . $this->escapeString($psql) . "'";
$c = sqlrcur_sendQuery($cur, $sql_U);
if (sqlrcur_affectedRows() < 1) {
$sql_i = "INSERT INTO BLOGLOG_TOTAL (sql, counter) VALUES ('" . $this->escapeString($psql) . "', 1)";
$c = sqlrcur_sendQuery($cur,$sql_i);
}
}
if (!$expectError && sqlrcur_errorMessage($cur) != '') {
$msg = '<pre>' . serendipity_specialchars($sql) . '</pre> / ' . serendipity_specialchars(sqlrcur_errorMessage($cur));
return $msg;
}
if (!$c) {
if (!$expectError && !$this->serendipity['production']) {
print '<pre>' . serendipity_specialchars($sql) . '</pre> / ' . serendipity_specialchars(sqlrcur_errorMessage($cur));
if (function_exists('debug_backtrace') && $reportErr == true) {
highlight_string(var_export(debug_backtrace(), 1));
}
}
return $type_map['false'];
}
if ($c === true) {
return $type_map['true'];
}
$result_type = $type_map[$result_type];
switch (sqlrcur_rowCount($cur)) {
case 0:
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
case 1:
if ($single) {
$row = $this->generateResultset($cur, $result_type);
if ($result_type != 'sqlr_ASSOC') {
$row=$row[0];
}
return $row;
}
default:
if ($single) {
return $this->generateResultset($cur, $result_type);
}
$row = $this->generateResultset($cur);
$rows = array();
for ($idx=0, $idxc = count($row); $idx < $idxc ; $idx++) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$assocKey] = $row[$idx][$assocKey];
} else {
$rows[$row[$idx][$assocKey]] = $row[$idx][$assocVal];
}
} else {
$rows = $row;
}
}
return $rows;
}
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*
* If you insert multiple rows using a single INSERT statement,
* LAST_INSERT_ID() returns the value generated for the first inserted row only.
*/
public function insertId($table = '', $id = '')
{
$databaseType = sqlrcon_identify($this->db_conn);
switch ($databaseType) {
case 'mysql':
$sqlstr='SELECT LAST_INSERT_ID()';
break;
case 'postgresql':
$sqlstr = "SELECT currval('{$this->db_prefix}{$table}_{$id}_seq'::text) AS {$id}";
break;
case 'sqlite':
$sqlstr = 'SELECT last_insert_rowid()';
break;
default:
$sqlstr = 'SELECT LAST_INSERT_ID()';
}
$row = $this->query($sqlstr, true);
return $row[0];
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
/* int sqlrcur_affectedRows(int sqlrcurref)
* Returns the number of rows that were updated, inserted or deleted by the query.
* Not all databases support this call.
* Don't use it for applications which are designed to be portable across databases.
* -1 is returned by databases which don't support this option.
*/
return sqlrcur_affectedRows($this->db_cursor);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
/*
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysql_info(),
$arr);
// mysql_affected_rows returns 0 if rows were matched but not changed.
// mysql_info returns rows matched AND rows changed
return $arr[2];
*/
return $this->affectedRows();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
/*
preg_match(
"/^[^0-9]+([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+)/",
mysql_info(),
$arr);
// mysql_affected_rows returns 0 if rows were matched but not changed.
// mysql_info returns rows matched AND rows changed
return $arr[1];
*/
return $this->affectedRows();
}
/**
* Returns an escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($str)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
$databaseType = sqlrcon_identify($this->db_conn);
switch ($databaseType) {
case 'mysql':
if (function_exists('mysql_real_escape_string')) {
$rtnstr = mysql_real_escape_string($str, $this->db_conn);
} else {
$rtnstr = addslashes($str);
}
break;
case 'postgresql':
if (function_exists('pg_escape_string')) {
$rtnstr = pg_escape_string($str);
} else {
$rtnstr = addslashes($str);
}
break;
case 'sqlite':
$rtnstr = str_replace($search, $replace, $str);
break;
default:
$rtnstr = addslashes($str);
}
return $rtnstr;
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
$databaseType = sqlrcon_identify($this->db_conn);
switch ($databaseType) {
case "mysql":
return ' LIMIT ' . $limitstring;
case "postgresql":
$limit_split = explode(',', $limitstring);
if (count($limit_split) > 1) {
$limit = ' LIMIT ' . $limit_split[0] . ' OFFSET ' . $limit_split[1];
} else {
$limit = ' LIMIT ' . $limit_split[0];
}
return $limit;
default:
return ' LIMIT ' . $limitstring;
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
if (isset($this->db_conn)) {
return $this->db_conn;
}
if (isset($this->serendipity['dbPersistent']) && $this->serendipity['dbPersistent']) {
$function = 'sqlrcon_alloc';
} else {
$function = 'sqlrcon_alloc';
}
#$this->db_hostname="localhost:9000"
$dbHostPort = explode(":", $this->db_hostname);
$this->db_conn = $function($dbHostPort[0], $dbHostPort[1], "", $this->db_username, $this->db_password, 0, 1);
sqlrcon_debugOff($this->db_conn);
if( sqlrcon_identify($this->db_conn) == "mysql") {
$this->reconnect();
}
return $this->db_conn;
}
public function reconnect()
{
if (isset($this->serendipity['dbCharset'])) {
$this->query("SET NAMES " . $this->serendipity['dbCharset']);
@define('SQL_CHARSET_INIT', true);
} elseif (defined('SQL_CHARSET') && $this->serendipity['dbNames'] && !defined('SQL_CHARSET_INIT')) {
$this->query("SET NAMES " . SQL_CHARSET);
}
}
/**
* Prepares a Serendipity query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
$databaseType = sqlrcon_identify($this->db_conn);
switch ($databaseType) {
case "mysql":
static $search = array('{AUTOINCREMENT}', '{PRIMARY}',
'{UNSIGNED}', '{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', '{TEXT}');
static $replace = array('int(11) not null auto_increment', 'primary key',
'unsigned' , 'FULLTEXT', 'FULLTEXT', 'enum (\'true\', \'false\') NOT NULL default \'true\'', 'LONGTEXT');
static $is_utf8 = null;
if ($is_utf8 === null) {
$search[] = '{UTF_8}';
if ((isset($_POST['charset']) && $_POST['charset'] == 'UTF-8/') ||
$this->serendipity['charset'] == 'UTF-8/' ||
$this->serendipity['POST']['charset'] == 'UTF-8/' ||
LANG_CHARSET == 'UTF-8' ) {
$replace[] = '/*!40100 CHARACTER SET utf8 COLLATE utf8_unicode_ci */';
} else {
$replace[] = '';
}
}
break;
case "postgresql":
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}',
'{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', 'int(1)', 'int(10)', 'int(11)', 'int(4)', '{UTF_8}', '{TEXT}');
static $replace = array('SERIAL', 'primary key', '',
'', '', 'BOOLEAN NOT NULL', 'int2', 'int4', 'int4', 'int4', '', 'text');
break;
case "sqlite":
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{FULLTEXT_MYSQL}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER', 'PRIMARY KEY', '', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
break;
default:
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query{0} == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
$c = null;
if (!function_exists('sqlrcon_alloc')) {
$errs[] = 'No sql_relay extension found. Please check your webserver installation or contact your systems administrator regarding this problem.';
return false;
}
if (!($c=@sqlrcon_alloc($hash['dbHost'], '', '', $hash['dbUser'], $hash['dbPass'], 0, 5))) {
$errs[] = 'Could not connect to database; check your settings.';
return false;
}
$this->db_conn = $c;
/* which db should be used is defined in sqlrelay.conf */
return true;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
$databaseType = sqlrcon_identify($this->db_conn);
switch ($databaseType) {
case 'mysql':
return 'concat(' . $string . ')';
case 'postgresql':
return '(' . str_replace(', ', '||', $string) . ')';
case 'sqlite':
return 'concat(' . $string . ')';
default:
return 'concat(' . $string . ')';
}
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
class Sqlite3Database extends DbAbstract
{
// SQLite3 only fetches by assoc, we will emulate the other result types
public const SQLITE3_ASSOC = 0;
public const SQLITE3_NUM = 1;
public const SQLITE3_BOTH = 2;
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$this->query('begin transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
$this->query('commit transaction');
} else {
$this->query('rollback transaction');
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
if (isset($this->db_conn)) {
return $this->db_conn;
}
// SQLite3 doesn't support persistent connections
$this->db_conn = sqlite3_open((defined('S9Y_DATA_PATH') ? S9Y_DATA_PATH : $this->serendipity['serendipityPath']) . $this->db_name . '.db');
return $this->db_conn;
}
/**
* Returns a escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
return str_replace($search, $replace, $string);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
return sqlite3_changes($this->db_conn);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite3_changes($this->db_conn);
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite3_changes($this->db_conn);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
public function insertId()
{
return sqlite3_last_insert_rowid($this->db_conn);
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
protected function fetchArray($res, $type = self::SQLITE3_BOTH)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
$row = sqlite3_fetch_array($res);
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
foreach ($row as $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$row[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
if ($type == self::SQLITE3_NUM) {
$frow = array();
} else {
$frow = $row;
}
if ($type != self::SQLITE3_ASSOC) {
$i = 0;
foreach ($row as $k => $v) {
$frow[$i] = $v;
$i++;
}
}
return $frow;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach ($search_ids as $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = true, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => self::SQLITE3_ASSOC,
'num' => self::SQLITE3_NUM,
'both' => self::SQLITE3_BOTH,
'true' => true,
'false' => false
);
static $debug = false;
if ($debug) {
// Open file and write directly. In case of crashes, the pointer needs to be killed.
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE QUERY: ' . $sql . "\n\n");
fclose($fp);
}
if ($reportErr && !$expectError) {
$res = sqlite3_query($this->db_conn, $sql);
} else {
$res = @sqlite3_query($this->db_conn, $sql);
}
if (!$res) {
if (!$expectError && !$this->serendipity['production']) {
var_dump($res);
var_dump($sql);
$msg = "problem with query";
return $msg;
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] [ERROR] ' . "\n\n");
fclose($fp);
}
return $type_map['false'];
}
if ($res === true) {
return $type_map['true'];
}
$rows = array();
while (($row = $this->fetchArray($res, $type_map[$result_type]))) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE RESULT: ' . print_r($rows, true). "\n\n");
fclose($fp);
}
if ($single && count($rows) == 1) {
return $rows[0];
}
if (count($rows) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
}
return $rows;
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (!function_exists('sqlite3_open')) {
$errs[] = 'SQLite extension not installed. Run "pear install sqlite" on your webserver or contact your systems administrator regarding this problem.';
return false;
}
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $this->serendipity['serendipityPath'] . $dbName . '.db';
}
$this->db_conn = sqlite3_open($dbfile);
if ($this->db_conn) {
return true;
}
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER AUTOINCREMENT', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
$query = str_replace('INTEGER AUTOINCREMENT PRIMARY KEY', 'INTEGER PRIMARY KEY AUTOINCREMENT', $query);
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
return ' LIMIT ' . $limitstring;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return 'concat(' . $string . ')';
}
}

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<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
class Sqlite3ooDatabase extends DbAbstract
{
// SQLite3 only fetches by assoc, we will emulate the other result types
public const SQLITE3_ASSOC = 0;
public const SQLITE3_NUM = 1;
public const SQLITE3_BOTH = 2;
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$this->query('begin transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
$this->query('commit transaction');
} else {
$this->query('rollback transaction');
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
if (isset($this->db_conn)) {
return $this->db_conn;
}
// SQLite3 doesn't support persistent connections
$this->db_conn = new SQLite3((defined('S9Y_DATA_PATH') ? S9Y_DATA_PATH : $this->serendipity['serendipityPath']) . $this->db_name . '.db');
return $this->db_conn;
}
/**
* Returns an escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
return str_replace($search, $replace, $string);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
return $this->db_conn->changes();
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return $this->db_conn->changes();
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return $this->db_conn->changes($this->db_conn);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
public function insertId()
{
return $this->db_conn->lastInsertRowID();
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
public function sqlite_fetch_array($res, $type = self::SQLITE3_BOTH)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
try {
$row = $res->fetchArray();
} catch (Exception $e) {
$row = false;
echo "SQLITE-EXCEPTION: " . $e->getMessage() . "\n";
}
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
foreach ($row as $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$row[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
if ($type == self::SQLITE3_NUM) {
$frow = array();
} else {
$frow = $row;
}
if ($type != self::SQLITE3_ASSOC) {
$i = 0;
foreach ($row as $k => $v) {
$frow[$i] = $v;
$i++;
}
}
return $frow;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach ($search_ids as $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignroed on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = true, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => self::SQLITE3_ASSOC,
'num' => self::SQLITE3_NUM,
'both' => self::SQLITE3_BOTH,
'true' => true,
'false' => false
);
static $debug = false;
if ($debug) {
// Open file and write directly. In case of crashes, the pointer needs to be killed.
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE QUERY: ' . $sql . "\n\n");
fclose($fp);
}
if ($reportErr && !$expectError) {
$res = $this->db_conn->query($sql);
} else {
$res = @$this->db_conn->query($sql);
}
if (!$res) {
if (!$expectError && !$this->serendipity['production']) {
var_dump($res);
var_dump($sql);
$msg = "problem with query";
return $msg;
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] [ERROR] ' . "\n\n");
fclose($fp);
}
return $type_map['false'];
}
if (!preg_match('@^SELECT@imsU', trim($sql))) {
// Everything that is not SELECT will not return rows.
// SQLite3 OO will always return an object though.
if ($this->db_conn->lastErrorCode() > 0) {
echo "SQLITE-ERROR: " . $this->db_conn->lastErrorMsg() . "<br />\n";
return $type_map['false'];
} else {
return $type_map['true'];
}
}
$rows = array();
while (($row = $this->fetchArray($res, $type_map[$result_type]))) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE RESULT: ' . print_r($rows, true). "\n\n");
fclose($fp);
}
if ($single && count($rows) == 1) {
return $rows[0];
}
if (count($rows) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
}
return $rows;
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (!class_exists('SQLite3')) {
$errs[] = 'SQLite extension not installed. Available on PHP 5.4+.';
return false;
}
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $this->serendipity['serendipityPath'] . $dbName . '.db';
}
$this->db_conn = new SQLite3($dbfile);
if ($this->db_conn) {
return true;
}
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
/**
* Prepares a Serendipty query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER AUTOINCREMENT', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
$query = str_replace('INTEGER AUTOINCREMENT PRIMARY KEY', 'INTEGER PRIMARY KEY AUTOINCREMENT', $query);
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
return ' LIMIT ' . $limitstring;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return 'concat(' . $string . ')';
}
}

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@ -0,0 +1,380 @@
<?php
// Serendipity
// See LICENSE file for license information.
namespace Serendipity\Database;
use Serendipity\Database\DbAbstract;
class SqliteDatabase extends DbAbstract
{
/**
* Tells the DB Layer to start a DB transaction.
*
* @access public
*/
public function beginTransaction()
{
$this->query('begin transaction');
}
/**
* Tells the DB Layer to end a DB transaction.
*
* @access public
* @param boolean If true, perform the query. If false, rollback.
*/
public function endTransaction($commit)
{
if ($commit) {
$this->query('commit transaction');
} else {
$this->query('rollback transaction');
}
}
/**
* Connect to the configured Database
*
* @access public
* @return resource connection handle
*/
public function connect()
{
if (isset($this->db_conn)) {
return $this->db_conn;
}
if (isset($this->serendipity['dbPersistent']) && $this->serendipity['dbPersistent']) {
$function = 'sqlite_popen';
} else {
$function = 'sqlite_open';
}
if (defined('S9Y_DATA_PATH')) {
$this->db_conn = $function(S9Y_DATA_PATH . $this->db_name . '.db');
} else {
$this->db_conn = $function($this->db_name . '.db');
}
return $this->db_conn;
}
/**
* Returns an escaped string, so that it can be safely included in a SQL string encapsulated within quotes, without allowing SQL injection.
*
* @access public
* @param string input string
* @return string output string
*/
public function escapeString($string)
{
static $search = array("\x00", '%', "'", '\"');
static $replace = array('%00', '%25', "''", '\\\"');
return str_replace($search, $replace, $string);
}
/**
* Returns the number of affected rows of a SQL query
*
* @access public
* @return int Number of affected rows
*/
public function affectedRows()
{
return sqlite_changes($this->db_conn);
}
/**
* Returns the number of updated rows in a SQL query
*
* @access public
* @return int Number of updated rows
*/
public function updatedRows()
{
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite_changes($this->db_conn);
}
/**
* Returns the number of matched rows in a SQL query
*
* @access public
* @return int Number of matched rows
*/
public function matchedRows()
{
// It is unknown whether sqllite returns rows MATCHED or rows UPDATED
return sqlite_changes($this->db_conn);
}
/**
* Returns the latest INSERT_ID of an SQL INSERT INTO command, for auto-increment columns
*
* @access public
* @return int Value of the auto-increment column
*/
public function insertId()
{
return sqlite_last_insert_rowid($this->db_conn);
}
/**
* Parse result arrays into expected format for further operations
*
* SQLite does not support to return "e.entryid" within a $row['entryid'] return.
* So this function manually iteratse through all result rows and rewrites 'X.yyyy' to 'yyyy'.
* Yeah. This sucks. Don't tell me!
*
* @access private
* @param resource The row resource handle
* @param int Bitmask to tell whether to fetch numerical/associative arrays
* @return array Propper array containing the resource results
*/
protected function fetchArray($res, $type = SQLITE_BOTH)
{
static $search = array('%00', '%25');
static $replace = array("\x00", '%');
$row = sqlite_fetch_array($res, $type);
if (!is_array($row)) {
return $row;
}
/* strip any slashes, correct fieldname */
foreach ($row as $i => $v) {
// TODO: If a query of the format 'SELECT a.id, b.text FROM table' is used,
// the sqlite extension will give us key indizes 'a.id' and 'b.text'
// instead of just 'id' and 'text' like in mysql/postgresql extension.
// To fix that, we use a preg-regex; but that is quite performance costy.
// Either we always need to use 'SELECT a.id AS id, b.text AS text' in query,
// or the sqlite extension may get fixed. :-)
$row[preg_replace('@^.+\.(.*)@', '\1', $i)] = str_replace($search, $replace, $v);
}
return $row;
}
/**
* Assemble and return SQL condition for a "IN (...)" clause
*
* @access public
* @param string table column name
* @param array referenced array of values to search for in the "IN (...)" clause
* @param string condition of how to associate the different input values of the $search_ids parameter
* @return string resulting SQL string
*/
public function inSql($col, &$search_ids, $type = ' OR ')
{
$sql = array();
if (!is_array($search_ids)) {
return false;
}
foreach($search_ids AS $id) {
$sql[] = $col . ' = ' . $id;
}
$cond = '(' . implode($type, $sql) . ')';
return $cond;
}
/**
* Perform a DB Layer SQL query.
*
* This function returns values dependin on the input parameters and the result of the query.
* It can return:
* false or a string if there was an error (depends on $expectError),
* true if the query succeeded but did not generate any rows
* array of field values if it returned a single row and $single is true
* array of array of field values if it returned row(s) [stacked array]
*
* @access public
* @param string SQL query to execute
* @param boolean Toggle whether the expected result is a single row (TRUE) or multiple rows (FALSE). This affects whether the returned array is 1 or 2 dimensional!
* @param string Result type of the array indexing. Can be one of "assoc" (associative), "num" (numerical), "both" (numerical and associative, default)
* @param boolean If true, errors will be reported. If false, errors will be ignored.
* @param string A possible array key name, so that you can control the multi-dimensional mapping of an array by the key column
* @param string A possible array field name, so that you can control the multi-dimensional mapping of an array by the key column and the field value.
* @param boolean If true, the executed SQL error is known to fail, and should be disregarded (errors can be ignored on DUPLICATE INDEX queries and the likes)
* @return mixed Returns the result of the SQL query, depending on the input parameters
*/
public function &query($sql, $single = false, $result_type = "both", $reportErr = true, $assocKey = false, $assocVal = false, $expectError = false)
{
$type_map = array(
'assoc' => SQLITE_ASSOC,
'num' => SQLITE_NUM,
'both' => SQLITE_BOTH,
'true' => true,
'false' => false
);
static $debug = false;
if ($debug) {
// Open file and write directly. In case of crashes, the pointer needs to be killed.
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE QUERY: ' . $sql . "\n\n");
fclose($fp);
}
if ($reportErr && !$expectError) {
$res = sqlite_query($sql, $this->db_conn);
} else {
$res = @sqlite_query($sql, $this->db_conn);
}
if (!$res) {
if (!$expectError && !$this->serendipity['production']) {
var_dump($res);
var_dump($sql);
$msg = "problem with query";
return $msg;
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] [ERROR] ' . "\n\n");
fclose($fp);
}
return $type_map['false'];
}
if ($res === true) {
return $type_map['true'];
}
if (sqlite_num_rows($res) == 0) {
if ($single) {
return $type_map['false'];
}
return $type_map['true'];
} else {
$rows = array();
while (($row = $this->fetchArray($res, $type_map[$result_type]))) {
if (!empty($assocKey)) {
// You can fetch a key-associated array via the two function parameters assocKey and assocVal
if (empty($assocVal)) {
$rows[$row[$assocKey]] = $row;
} else {
$rows[$row[$assocKey]] = $row[$assocVal];
}
} else {
$rows[] = $row;
}
}
if ($debug) {
$fp = @fopen('sqlite.log', 'a');
fwrite($fp, '[' . date('d.m.Y H:i') . '] SQLITE RESULT: ' . print_r($rows, true). "\n\n");
fclose($fp);
}
if ($single && count($rows) == 1) {
return $rows[0];
}
return $rows;
}
}
/**
* Try to connect to the configured Database (during installation)
*
* @access public
* @param array input configuration array, holding the connection info
* @param array referenced array which holds the errors that might be encountered
* @return boolean return true on success, false on error
*/
public function probe($hash, &$errs)
{
$dbName = (isset($hash['sqlitedbName']) ? $hash['sqlitedbName'] : $hash['dbName']);
if (!function_exists('sqlite_open')) {
$errs[] = 'SQLite extension not installed. Run "pear install sqlite" on your webserver or contact your systems administrator regarding this problem.';
return false;
}
if (defined('S9Y_DATA_PATH')) {
// Shared installations!
$dbfile = S9Y_DATA_PATH . $dbName . '.db';
} else {
$dbfile = $this->serendipity['serendipityPath'] . $dbName . '.db';
}
$this->db_conn = sqlite_open($dbfile);
if ($this->db_conn) {
return true;
}
$errs[] = "Unable to open \"$dbfile\" - check permissions (directory needs to be writeable for webserver)!";
return false;
}
/**
* Prepares a Serendipity query input to fully valid SQL. Replaces certain "template" variables.
*
* @access public
* @param string SQL query with template variables to convert
* @return resource SQL resource handle of the executed query
*/
public function schemaImport($query)
{
static $search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}', '{BOOLEAN}', '{UTF_8}', '{TEXT}');
static $replace = array('INTEGER', 'PRIMARY KEY', '', '', 'BOOLEAN NOT NULL', '', 'LONGTEXT');
if (stristr($query, '{FULLTEXT_MYSQL}')) {
return true;
}
$query = trim(str_replace($search, $replace, $query));
if ($query[0] == '@') {
// Errors are expected to happen (like duplicate index creation)
return $this->query(substr($query, 1), false, 'both', false, false, false, true);
} else {
return $this->query($query);
}
}
/**
* Returns the option to a LIMIT SQL statement, because it varies across DB systems
*
* @access public
* @param int Number of the first row to return data from
* @param int Number of rows to return
* @return string SQL string to pass to a LIMIT statement
*/
public function limit($start, $offset)
{
return $start . ', ' . $offset;
}
/**
* Return a LIMIT SQL option to the DB Layer as a full LIMIT statement
*
* @access public
* @param SQL string of a LIMIT option
* @return SQL string containing a full LIMIT statement
*/
public function limitSql($limitstring)
{
return ' LIMIT ' . $limitstring;
}
/**
* Returns the SQL code used for concatenating strings
*
* @access public
* @param string Input string/column to concatenate
* @return string SQL parameter
*/
public function concat($string)
{
return 'concat(' . $string . ')';
}
}