| | |
| | | ); |
| | | |
| | | const DEBUG_LINE_LENGTH = 4096; |
| | | const DEFAULT_QUOTE = '`'; |
| | | |
| | | /** |
| | | * Factory, returns driver-specific instance of the class |
| | |
| | | 'sybase' => 'mssql', |
| | | 'dblib' => 'mssql', |
| | | 'mysqli' => 'mysql', |
| | | 'oci' => 'oracle', |
| | | ); |
| | | |
| | | $driver = isset($driver_map[$driver]) ? $driver_map[$driver] : $driver; |
| | |
| | | // 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]; |
| | | |
| | |
| | | $query = $this->set_limit($query, $numrows, $offset); |
| | | } |
| | | |
| | | // 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; |
| | |
| | | $query = str_replace('??', '?', $query); |
| | | $query = rtrim($query, " \t\n\r\0\x0B;"); |
| | | |
| | | // log query |
| | | $this->debug($query); |
| | | |
| | | // destroy reference to previous result, required for SQLite driver (#1488874) |
| | |
| | | $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 $query; |
| | | } |
| | | |
| | | /** |
| | |
| | | { |
| | | // get tables if not cached |
| | | if ($this->tables === null) { |
| | | $q = $this->query('SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = ? ORDER BY TABLE_NAME', |
| | | array($this->db_dsnw_array['database'])); |
| | | $q = $this->query('SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES ORDER BY TABLE_NAME'); |
| | | |
| | | if ($q) { |
| | | $this->tables = $q->fetchAll(PDO::FETCH_COLUMN, 0); |
| | |
| | | */ |
| | | public function list_cols($table) |
| | | { |
| | | $q = $this->query('SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ? AND TABLE_SCHEMA = ?', |
| | | array($table, $this->db_dsnw_array['database'])); |
| | | $q = $this->query('SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ?', |
| | | array($table)); |
| | | |
| | | if ($q) { |
| | | return $q->fetchAll(PDO::FETCH_COLUMN, 0); |
| | |
| | | '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'; |
| | |
| | | /** |
| | | * 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, $quoted = false) |
| | | { |
| | | // add prefix to the table name if configured |
| | | if (($prefix = $this->options['table_prefix']) && strpos($table, $prefix) !== 0) { |
| | | return $prefix . $table; |
| | | $table = $prefix . $table; |
| | | } |
| | | |
| | | if ($quoted) { |
| | | $table = $this->quote_identifier($table); |
| | | } |
| | | |
| | | return $table; |