From 2f8b1036da42ec3d15a51c6b17a473f9f4df71d3 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <bruederli@kolabsys.com>
Date: Sat, 07 Feb 2015 12:33:24 -0500
Subject: [PATCH] Bump version and copyright year
---
program/lib/Roundcube/rcube_db.php | 291 +++++++++++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 247 insertions(+), 44 deletions(-)
diff --git a/program/lib/Roundcube/rcube_db.php b/program/lib/Roundcube/rcube_db.php
index aaba281..ab7058f 100644
--- a/program/lib/Roundcube/rcube_db.php
+++ b/program/lib/Roundcube/rcube_db.php
@@ -1,6 +1,6 @@
<?php
-/**
+/*
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2005-2012, The Roundcube Dev Team |
@@ -31,7 +31,6 @@
protected $db_dsnr; // DSN for read operations
protected $db_connected = false; // Already connected ?
protected $db_mode; // Connection mode
- protected $db_table_dsn_map = array();
protected $dbh; // Connection handle
protected $dbhs = array();
protected $table_connections = array();
@@ -51,6 +50,7 @@
);
const DEBUG_LINE_LENGTH = 4096;
+ const DEFAULT_QUOTE = '`';
/**
* Factory, returns driver-specific instance of the class
@@ -69,6 +69,8 @@
'sybase' => 'mssql',
'dblib' => 'mssql',
'mysqli' => 'mysql',
+ 'oci' => 'oracle',
+ 'oci8' => 'oracle',
);
$driver = isset($driver_map[$driver]) ? $driver_map[$driver] : $driver;
@@ -100,12 +102,15 @@
$this->db_dsnw = $db_dsnw;
$this->db_dsnr = $db_dsnr;
$this->db_pconn = $pconn;
- $this->db_dsnw_noread = rcube::get_instance()->config->get('db_dsnw_noread', false);
$this->db_dsnw_array = self::parse_dsn($db_dsnw);
$this->db_dsnr_array = self::parse_dsn($db_dsnr);
- $this->db_table_dsn_map = array_map(array($this, 'table_name'), rcube::get_instance()->config->get('db_table_dsn', array()));
+ $config = rcube::get_instance()->config;
+
+ $this->options['table_prefix'] = $config->get('db_prefix');
+ $this->options['dsnw_noread'] = $config->get('db_dsnw_noread', false);
+ $this->options['table_dsn_map'] = array_map(array($this, 'table_name'), $config->get('db_table_dsn', array()));
}
/**
@@ -126,6 +131,20 @@
return $this->dbh;
}
+ // connect to database
+ if ($dbh = $this->conn_create($dsn)) {
+ $this->dbh = $dbh;
+ $this->dbhs[$mode] = $dbh;
+ $this->db_mode = $mode;
+ $this->db_connected = true;
+ }
+ }
+
+ /**
+ * Create PDO connection
+ */
+ protected function conn_create($dsn)
+ {
// Get database specific connection options
$dsn_string = $this->dsn_string($dsn);
$dsn_options = $this->dsn_options($dsn);
@@ -147,6 +166,8 @@
// don't throw exceptions or warnings
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
+
+ $this->conn_configure($dsn, $dbh);
}
catch (Exception $e) {
$this->db_error = true;
@@ -159,11 +180,7 @@
return null;
}
- $this->dbh = $dbh;
- $this->dbhs[$mode] = $dbh;
- $this->db_mode = $mode;
- $this->db_connected = true;
- $this->conn_configure($dsn, $dbh);
+ return $dbh;
}
/**
@@ -206,7 +223,7 @@
// Already connected
if ($this->db_connected) {
// connected to db with the same or "higher" mode (if allowed)
- if ($this->db_mode == $mode || $this->db_mode == 'w' && !$force && !$this->db_dsnw_noread) {
+ if ($this->db_mode == $mode || $this->db_mode == 'w' && !$force && !$this->options['dsnw_noread']) {
return;
}
}
@@ -235,20 +252,24 @@
// Read or write ?
$mode = preg_match('/^(select|show|set)/i', $query) ? 'r' : 'w';
+ $start = '[' . $this->options['identifier_start'] . self::DEFAULT_QUOTE . ']';
+ $end = '[' . $this->options['identifier_end'] . self::DEFAULT_QUOTE . ']';
+ $regex = '/(?:^|\s)(from|update|into|join)\s+'.$start.'?([a-z0-9._]+)'.$end.'?\s+/i';
+
// find tables involved in this query
- if (preg_match_all('/(?:^|\s)(from|update|into|join)\s+'.$this->options['identifier_start'].'?([a-z0-9._]+)'.$this->options['identifier_end'].'?\s+/i', $query, $matches, PREG_SET_ORDER)) {
+ if (preg_match_all($regex, $query, $matches, PREG_SET_ORDER)) {
foreach ($matches as $m) {
$table = $m[2];
// always use direct mapping
- if ($this->db_table_dsn_map[$table]) {
- $mode = $this->db_table_dsn_map[$table];
+ if ($this->options['table_dsn_map'][$table]) {
+ $mode = $this->options['table_dsn_map'][$table];
break; // primary table rules
}
else if ($mode == 'r') {
// connected to db with the same or "higher" mode for this table
$db_mode = $this->table_connections[$table];
- if ($db_mode == 'w' && !$this->db_dsnw_noread) {
+ if ($db_mode == 'w' && !$this->options['dsnw_noread']) {
$mode = $db_mode;
}
}
@@ -392,7 +413,7 @@
*/
protected function _query($query, $offset, $numrows, $params)
{
- $query = trim($query);
+ $query = ltrim($query);
$this->db_connect($this->dsn_select($query), true);
@@ -405,32 +426,45 @@
$query = $this->set_limit($query, $numrows, $offset);
}
- $params = (array) $params;
+ // replace self::DEFAULT_QUOTE with driver-specific quoting
+ $query = $this->query_parse($query);
// Because in Roundcube we mostly use queries that are
// executed only once, we will not use prepared queries
$pos = 0;
$idx = 0;
- while ($pos = strpos($query, '?', $pos)) {
- if ($query[$pos+1] == '?') { // skip escaped ?
- $pos += 2;
- }
- else {
- $val = $this->quote($params[$idx++]);
- unset($params[$idx-1]);
- $query = substr_replace($query, $val, $pos, 1);
- $pos += strlen($val);
+ if (count($params)) {
+ while ($pos = strpos($query, '?', $pos)) {
+ if ($query[$pos+1] == '?') { // skip escaped '?'
+ $pos += 2;
+ }
+ else {
+ $val = $this->quote($params[$idx++]);
+ unset($params[$idx-1]);
+ $query = substr_replace($query, $val, $pos, 1);
+ $pos += strlen($val);
+ }
}
}
- // replace escaped ? back to normal
- $query = rtrim(strtr($query, array('??' => '?')), ';');
+ // replace escaped '?' back to normal, see self::quote()
+ $query = str_replace('??', '?', $query);
+ $query = rtrim($query, " \t\n\r\0\x0B;");
+ // log query
$this->debug($query);
+ return $this->query_execute($query);
+ }
+
+ /**
+ * Query execution
+ */
+ protected function query_execute($query)
+ {
// destroy reference to previous result, required for SQLite driver (#1488874)
- $this->last_result = null;
+ $this->last_result = null;
$this->db_error_msg = null;
// send query
@@ -440,9 +474,52 @@
$result = $this->handle_error($query);
}
- $this->last_result = $result;
+ return $this->last_result = $result;
+ }
- return $result;
+ /**
+ * Parse SQL query and replace identifier quoting
+ *
+ * @param string $query SQL query
+ *
+ * @return string SQL query
+ */
+ protected function query_parse($query)
+ {
+ $start = $this->options['identifier_start'];
+ $end = $this->options['identifier_end'];
+ $quote = self::DEFAULT_QUOTE;
+
+ if ($start == $quote) {
+ return $query;
+ }
+
+ $pos = 0;
+ $in = false;
+
+ while ($pos = strpos($query, $quote, $pos)) {
+ if ($query[$pos+1] == $quote) { // skip escaped quote
+ $pos += 2;
+ }
+ else {
+ if ($in) {
+ $q = $end;
+ $in = false;
+ }
+ else {
+ $q = $start;
+ $in = true;
+ }
+
+ $query = substr_replace($query, $q, $pos, 1);
+ $pos++;
+ }
+ }
+
+ // replace escaped quote back to normal, see self::quote()
+ $query = str_replace($quote.$quote, $quote, $query);
+
+ return $query;
}
/**
@@ -479,7 +556,9 @@
public function affected_rows($result = null)
{
if ($result || ($result === null && ($result = $this->last_result))) {
- return $result->rowCount();
+ if ($result !== true) {
+ return $result->rowCount();
+ }
}
return 0;
@@ -495,7 +574,7 @@
*/
public function num_rows($result = null)
{
- if ($result || ($result === null && ($result = $this->last_result))) {
+ if (($result || ($result === null && ($result = $this->last_result))) && $result !== true) {
// repeat query with SELECT COUNT(*) ...
if (preg_match('/^SELECT\s+(?:ALL\s+|DISTINCT\s+)?(?:.*?)\s+FROM\s+(.*)$/ims', $result->queryString, $m)) {
$query = $this->dbh->query('SELECT COUNT(*) FROM ' . $m[1], PDO::FETCH_NUM);
@@ -571,7 +650,9 @@
protected function _fetch_row($result, $mode)
{
if ($result || ($result === null && ($result = $this->last_result))) {
- return $result->fetch($mode);
+ if ($result !== true) {
+ return $result->fetch($mode);
+ }
}
return false;
@@ -641,6 +722,63 @@
}
/**
+ * Start transaction
+ *
+ * @return bool True on success, False on failure
+ */
+ public function startTransaction()
+ {
+ $this->db_connect('w', true);
+
+ // check connection before proceeding
+ if (!$this->is_connected()) {
+ return $this->last_result = false;
+ }
+
+ $this->debug('BEGIN TRANSACTION');
+
+ return $this->last_result = $this->dbh->beginTransaction();
+ }
+
+ /**
+ * Commit transaction
+ *
+ * @return bool True on success, False on failure
+ */
+ public function endTransaction()
+ {
+ $this->db_connect('w', true);
+
+ // check connection before proceeding
+ if (!$this->is_connected()) {
+ return $this->last_result = false;
+ }
+
+ $this->debug('COMMIT TRANSACTION');
+
+ return $this->last_result = $this->dbh->commit();
+ }
+
+ /**
+ * Rollback transaction
+ *
+ * @return bool True on success, False on failure
+ */
+ public function rollbackTransaction()
+ {
+ $this->db_connect('w', true);
+
+ // check connection before proceeding
+ if (!$this->is_connected()) {
+ return $this->last_result = false;
+ }
+
+ $this->debug('ROLLBACK TRANSACTION');
+
+ return $this->last_result = $this->dbh->rollBack();
+ }
+
+ /**
* Formats input so it can be safely used in a query
*
* @param mixed $input Value to quote
@@ -673,8 +811,13 @@
'bool' => PDO::PARAM_BOOL,
'integer' => PDO::PARAM_INT,
);
+
$type = isset($map[$type]) ? $map[$type] : PDO::PARAM_STR;
- return strtr($this->dbh->quote($input, $type), array('?' => '??')); // escape ?
+
+ return strtr($this->dbh->quote($input, $type),
+ // escape ? and `
+ array('?' => '??', self::DEFAULT_QUOTE => self::DEFAULT_QUOTE.self::DEFAULT_QUOTE)
+ );
}
return 'NULL';
@@ -913,21 +1056,24 @@
/**
* Return correct name for a specific database table
*
- * @param string $table Table name
+ * @param string $table Table name
+ * @param bool $quoted Quote table identifier
*
* @return string Translated table name
*/
- public function table_name($table)
+ public function table_name($table, $quoted = false)
{
- static $rcube;
-
- if (!$rcube) {
- $rcube = rcube::get_instance();
- }
+ // let plugins alter the table name (#1489837)
+ $plugin = rcube::get_instance()->plugins->exec_hook('db_table_name', array('table' => $table));
+ $table = $plugin['table'];
// add prefix to the table name if configured
- if (($prefix = $rcube->config->get('db_prefix')) && strpos($table, $prefix) !== 0) {
- return $prefix . $table;
+ if (($prefix = $this->options['table_prefix']) && strpos($table, $prefix) !== 0) {
+ $table = $prefix . $table;
+ }
+
+ if ($quoted) {
+ $table = $this->quote_identifier($table);
}
return $table;
@@ -952,7 +1098,7 @@
*/
public function set_table_dsn($table, $mode)
{
- $this->db_table_dsn_map[$this->table_name($table)] = $mode;
+ $this->options['table_dsn_map'][$this->table_name($table)] = $mode;
}
/**
@@ -1128,4 +1274,61 @@
return $result;
}
+
+ /**
+ * Execute the given SQL script
+ *
+ * @param string SQL queries to execute
+ *
+ * @return boolen True on success, False on error
+ */
+ public function exec_script($sql)
+ {
+ $sql = $this->fix_table_names($sql);
+ $buff = '';
+
+ foreach (explode("\n", $sql) as $line) {
+ if (preg_match('/^--/', $line) || trim($line) == '')
+ continue;
+
+ $buff .= $line . "\n";
+ if (preg_match('/(;|^GO)$/', trim($line))) {
+ $this->query($buff);
+ $buff = '';
+ if ($this->db_error) {
+ break;
+ }
+ }
+ }
+
+ return !$this->db_error;
+ }
+
+ /**
+ * Parse SQL file and fix table names according to table prefix
+ */
+ protected function fix_table_names($sql)
+ {
+ if (!$this->options['table_prefix']) {
+ return $sql;
+ }
+
+ $sql = preg_replace_callback(
+ '/((TABLE|TRUNCATE|(?<!ON )UPDATE|INSERT INTO|FROM'
+ . '| ON(?! (DELETE|UPDATE))|REFERENCES|CONSTRAINT|FOREIGN KEY|INDEX)'
+ . '\s+(IF (NOT )?EXISTS )?[`"]*)([^`"\( \r\n]+)/',
+ array($this, 'fix_table_names_callback'),
+ $sql
+ );
+
+ return $sql;
+ }
+
+ /**
+ * Preg_replace callback for fix_table_names()
+ */
+ protected function fix_table_names_callback($matches)
+ {
+ return $matches[1] . $this->options['table_prefix'] . $matches[count($matches)-1];
+ }
}
--
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