<?php
require_once("dbm.php");
-
-# if PDO is avaible for mysql, use the new database abstraction
-# TODO: PDO is disabled for release 3.3. We need to investigate why
-# the update from 3.2 fails with pdo
-/*
-if(class_exists('\PDO') && in_array('mysql', PDO::getAvailableDrivers())) {
- require_once("library/dddbl2/dddbl.php");
- require_once("include/dba_pdo.php");
-}
-*/
-
-
require_once('include/datetime.php');
/**
*
*/
-if(! class_exists('dba')) {
class dba {
private $debug = 0;
private $db;
private $result;
- public $mysqli = true;
+ private $driver;
public $connected = false;
public $error = false;
- function __construct($server,$user,$pass,$db,$install = false) {
- global $a;
+ function __construct($server, $user, $pass, $db, $install = false) {
+ $a = get_app();
$stamp1 = microtime(true);
$pass = trim($pass);
$db = trim($db);
- if (!(strlen($server) && strlen($user))){
+ if (!(strlen($server) && strlen($user))) {
$this->connected = false;
$this->db = null;
return;
}
- if($install) {
- if(strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
- if(! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
- $this->error = sprintf( t('Cannot locate DNS info for database server \'%s\''), $server);
+ if ($install) {
+ if (strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
+ if (! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
+ $this->error = sprintf(t('Cannot locate DNS info for database server \'%s\''), $server);
$this->connected = false;
$this->db = null;
return;
}
}
- if(class_exists('mysqli')) {
+ if (class_exists('\PDO') && in_array('mysql', PDO::getAvailableDrivers())) {
+ $this->driver = 'pdo';
+ $connect = "mysql:host=".$server.";dbname=".$db;
+ if (isset($a->config["system"]["db_charset"])) {
+ $connect .= ";charset=".$a->config["system"]["db_charset"];
+ }
+ $this->db = @new PDO($connect, $user, $pass);
+ if (!$this->db->errorCode()) {
+ $this->connected = true;
+ }
+ } elseif (class_exists('mysqli')) {
+ $this->driver = 'mysqli';
$this->db = @new mysqli($server,$user,$pass,$db);
- if(! mysqli_connect_errno()) {
+ if (!mysqli_connect_errno()) {
$this->connected = true;
+
+ if (isset($a->config["system"]["db_charset"])) {
+ $this->db->set_charset($a->config["system"]["db_charset"]);
+ }
}
- if (isset($a->config["system"]["db_charset"]))
- $this->db->set_charset($a->config["system"]["db_charset"]);
- }
- else {
- $this->mysqli = false;
+ } elseif (function_exists('mysql_connect')) {
+ $this->driver = 'mysql';
$this->db = mysql_connect($server,$user,$pass);
- if($this->db && mysql_select_db($db,$this->db)) {
+ if ($this->db && mysql_select_db($db,$this->db)) {
$this->connected = true;
+
+ if (isset($a->config["system"]["db_charset"])) {
+ mysql_set_charset($a->config["system"]["db_charset"], $this->db);
+ }
+ }
+ } else {
+ // No suitable SQL driver was found.
+ if (!$install) {
+ system_unavailable();
}
- if (isset($a->config["system"]["db_charset"]))
- mysql_set_charset($a->config["system"]["db_charset"], $this->db);
}
- if(! $this->connected) {
+
+ if (!$this->connected) {
$this->db = null;
- if(! $install)
+ if (!$install) {
system_unavailable();
+ }
}
-
$a->save_timestamp($stamp1, "network");
}
- public function getdb() {
- return $this->db;
+ /**
+ * @brief Returns the MySQL server version string
+ *
+ * This function discriminate between the deprecated mysql API and the current
+ * object-oriented mysqli API. Example of returned string: 5.5.46-0+deb8u1
+ *
+ * @return string
+ */
+ public function server_info() {
+ switch ($this->driver) {
+ case 'pdo':
+ $version = $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
+ break;
+ case 'mysqli':
+ $version = $this->db->server_info;
+ break;
+ case 'mysql':
+ $version = mysql_get_server_info($this->db);
+ break;
+ }
+ return $version;
+ }
+
+ /**
+ * @brief Returns the selected database name
+ *
+ * @return string
+ */
+ public function database_name() {
+ $r = $this->q("SELECT DATABASE() AS `db`");
+
+ return $r[0]['db'];
+ }
+
+ /**
+ * @brief Returns the number of rows
+ *
+ * @return integer
+ */
+ public function num_rows() {
+ if (!$this->result) {
+ return 0;
+ }
+
+ switch ($this->driver) {
+ case 'pdo':
+ $rows = $this->result->rowCount();
+ break;
+ case 'mysqli':
+ $rows = $this->result->num_rows;
+ break;
+ case 'mysql':
+ $rows = mysql_num_rows($this->result);
+ break;
+ }
+ return $rows;
+ }
+
+ /**
+ * @brief Analyze a database query and log this if some conditions are met.
+ *
+ * @param string $query The database query that will be analyzed
+ */
+ public function log_index($query) {
+ $a = get_app();
+
+ if ($a->config["system"]["db_log_index"] == "") {
+ return;
+ }
+
+ // Don't explain an explain statement
+ if (strtolower(substr($query, 0, 7)) == "explain") {
+ return;
+ }
+
+ // Only do the explain on "select", "update" and "delete"
+ if (!in_array(strtolower(substr($query, 0, 6)), array("select", "update", "delete"))) {
+ return;
+ }
+
+ $r = $this->q("EXPLAIN ".$query);
+ if (!dbm::is_result($r)) {
+ return;
+ }
+
+ $watchlist = explode(',', $a->config["system"]["db_log_index_watch"]);
+ $blacklist = explode(',', $a->config["system"]["db_log_index_blacklist"]);
+
+ foreach ($r AS $row) {
+ if ((intval($a->config["system"]["db_loglimit_index"]) > 0)) {
+ $log = (in_array($row['key'], $watchlist) AND
+ ($row['rows'] >= intval($a->config["system"]["db_loglimit_index"])));
+ } else {
+ $log = false;
+ }
+
+ if ((intval($a->config["system"]["db_loglimit_index_high"]) > 0) AND ($row['rows'] >= intval($a->config["system"]["db_loglimit_index_high"]))) {
+ $log = true;
+ }
+
+ if (in_array($row['key'], $blacklist) OR ($row['key'] == "")) {
+ $log = false;
+ }
+
+ if ($log) {
+ $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+ @file_put_contents($a->config["system"]["db_log_index"], datetime_convert()."\t".
+ $row['key']."\t".$row['rows']."\t".$row['Extra']."\t".
+ basename($backtrace[1]["file"])."\t".
+ $backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
+ substr($query, 0, 2000)."\n", FILE_APPEND);
+ }
+ }
}
public function q($sql, $onlyquery = false) {
- global $a;
+ $a = get_app();
- if((! $this->db) || (! $this->connected))
+ if (!$this->db || !$this->connected) {
return false;
+ }
$this->error = '';
- // Check the connection (This can reconnect the connection - if configured)
- if ($this->mysqli)
- $connected = $this->db->ping();
- else
- $connected = mysql_ping($this->db);
-
- $connstr = ($connected ? "Connected": "Disonnected");
+ $connstr = ($this->connected() ? "Connected" : "Disonnected");
$stamp1 = microtime(true);
- if($this->mysqli)
- $result = @$this->db->query($sql);
- else
- $result = @mysql_query($sql,$this->db);
+ $orig_sql = $sql;
+
+ if (x($a->config,'system') && x($a->config['system'], 'db_callstack')) {
+ $sql = "/*".$a->callstack()." */ ".$sql;
+ }
+
+ $columns = 0;
+ switch ($this->driver) {
+ case 'pdo':
+ $result = @$this->db->query($sql);
+ // Is used to separate between queries that returning data - or not
+ if (!is_bool($result)) {
+ $columns = $result->columnCount();
+ }
+ break;
+ case 'mysqli':
+ $result = @$this->db->query($sql);
+ break;
+ case 'mysql':
+ $result = @mysql_query($sql,$this->db);
+ break;
+ }
$stamp2 = microtime(true);
$duration = (float)($stamp2-$stamp1);
$a->save_timestamp($stamp1, "database");
- if (strtolower(substr($sql, 0, 6)) != "select")
+ if (strtolower(substr($orig_sql, 0, 6)) != "select") {
$a->save_timestamp($stamp1, "database_write");
-
- if(x($a->config,'system') && x($a->config['system'],'db_log')) {
+ }
+ if (x($a->config,'system') && x($a->config['system'],'db_log')) {
if (($duration > $a->config["system"]["db_loglimit"])) {
$duration = round($duration, 3);
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
}
}
- if($this->mysqli) {
- if($this->db->errno) {
- $this->error = $this->db->error;
- $this->errorno = $this->db->errno;
- }
- } elseif(mysql_errno($this->db)) {
- $this->error = mysql_error($this->db);
- $this->errorno = mysql_errno($this->db);
+ switch ($this->driver) {
+ case 'pdo':
+ $errorInfo = $this->db->errorInfo();
+ if ($errorInfo) {
+ $this->error = $errorInfo[2];
+ $this->errorno = $errorInfo[1];
+ }
+ break;
+ case 'mysqli':
+ if ($this->db->errno) {
+ $this->error = $this->db->error;
+ $this->errorno = $this->db->errno;
+ }
+ break;
+ case 'mysql':
+ if (mysql_errno($this->db)) {
+ $this->error = mysql_error($this->db);
+ $this->errorno = mysql_errno($this->db);
+ }
+ break;
}
-
- if(strlen($this->error)) {
+ if (strlen($this->error)) {
logger('DB Error ('.$connstr.') '.$this->errorno.': '.$this->error);
}
- if($this->debug) {
+ if ($this->debug) {
$mesg = '';
- if($result === false)
+ if ($result === false) {
$mesg = 'false';
- elseif($result === true)
+ } elseif ($result === true) {
$mesg = 'true';
- else {
- if($this->mysqli)
- $mesg = $result->num_rows . ' results' . EOL;
- else
- $mesg = mysql_num_rows($result) . ' results' . EOL;
+ } else {
+ switch ($this->driver) {
+ case 'pdo':
+ $mesg = $result->rowCount().' results'.EOL;
+ break;
+ case 'mysqli':
+ $mesg = $result->num_rows.' results'.EOL;
+ break;
+ case 'mysql':
+ $mesg = mysql_num_rows($result).' results'.EOL;
+ break;
+ }
}
$str = 'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg
* These usually indicate SQL syntax errors that need to be resolved.
*/
- if($result === false) {
+ if ($result === false) {
logger('dba: ' . printable($sql) . ' returned false.' . "\n" . $this->error);
- if(file_exists('dbfail.out'))
+ if (file_exists('dbfail.out')) {
file_put_contents('dbfail.out', datetime_convert() . "\n" . printable($sql) . ' returned false' . "\n" . $this->error . "\n", FILE_APPEND);
+ }
}
- if(($result === true) || ($result === false))
+ if (is_bool($result)) {
return $result;
-
+ }
if ($onlyquery) {
$this->result = $result;
return true;
}
$r = array();
- if($this->mysqli) {
- if($result->num_rows) {
- while($x = $result->fetch_array(MYSQLI_ASSOC))
+ switch ($this->driver) {
+ case 'pdo':
+ while ($x = $result->fetch(PDO::FETCH_ASSOC)) {
+ $r[] = $x;
+ }
+ $result->closeCursor();
+ break;
+ case 'mysqli':
+ while ($x = $result->fetch_array(MYSQLI_ASSOC)) {
$r[] = $x;
+ }
$result->free_result();
- }
- }
- else {
- if(mysql_num_rows($result)) {
- while($x = mysql_fetch_array($result, MYSQL_ASSOC))
+ break;
+ case 'mysql':
+ while ($x = mysql_fetch_array($result, MYSQL_ASSOC)) {
$r[] = $x;
+ }
mysql_free_result($result);
- }
+ break;
+ }
+
+ // PDO doesn't return "true" on successful operations - like mysqli does
+ // Emulate this behaviour by checking if the query returned data and had columns
+ // This should be reliable enough
+ if (($this->driver == 'pdo') AND (count($r) == 0) AND ($columns == 0)) {
+ return true;
}
//$a->save_timestamp($stamp1, "database");
- if($this->debug)
+ if ($this->debug) {
logger('dba: ' . printable(print_r($r, true)));
+ }
return($r);
}
public function qfetch() {
$x = false;
- if ($this->result)
- if($this->mysqli) {
- if($this->result->num_rows)
+ if ($this->result) {
+ switch ($this->driver) {
+ case 'pdo':
+ $x = $this->result->fetch(PDO::FETCH_ASSOC);
+ break;
+ case 'mysqli':
$x = $this->result->fetch_array(MYSQLI_ASSOC);
- } else {
- if(mysql_num_rows($this->result))
+ break;
+ case 'mysql':
$x = mysql_fetch_array($this->result, MYSQL_ASSOC);
+ break;
}
-
+ }
return($x);
}
public function qclose() {
- if ($this->result)
- if($this->mysqli) {
- $this->result->free_result();
- } else {
- mysql_free_result($this->result);
+ if ($this->result) {
+ switch ($this->driver) {
+ case 'pdo':
+ $this->result->closeCursor();
+ break;
+ case 'mysqli':
+ $this->result->free_result();
+ break;
+ case 'mysql':
+ mysql_free_result($this->result);
+ break;
}
+ }
}
public function dbg($dbg) {
}
public function escape($str) {
- if($this->db && $this->connected) {
- if($this->mysqli)
- return @$this->db->real_escape_string($str);
- else
- return @mysql_real_escape_string($str,$this->db);
+ if ($this->db && $this->connected) {
+ switch ($this->driver) {
+ case 'pdo':
+ return substr(@$this->db->quote($str, PDO::PARAM_STR), 1, -1);
+ case 'mysqli':
+ return @$this->db->real_escape_string($str);
+ case 'mysql':
+ return @mysql_real_escape_string($str,$this->db);
+ }
}
}
function connected() {
- if ($this->mysqli)
- $connected = $this->db->ping();
- else
- $connected = mysql_ping($this->db);
-
+ switch ($this->driver) {
+ case 'pdo':
+ // Not sure if this really is working like expected
+ $connected = ($this->db->getAttribute(PDO::ATTR_CONNECTION_STATUS) != "");
+ break;
+ case 'mysqli':
+ $connected = $this->db->ping();
+ break;
+ case 'mysql':
+ $connected = mysql_ping($this->db);
+ break;
+ }
return $connected;
}
+ function insert_id() {
+ switch ($this->driver) {
+ case 'pdo':
+ $id = $this->db->lastInsertId();
+ break;
+ case 'mysqli':
+ $id = $this->db->insert_id;
+ break;
+ case 'mysql':
+ $id = mysql_insert_id($this->db);
+ break;
+ }
+ return $id;
+ }
+
function __destruct() {
- if ($this->db)
- if($this->mysqli)
- $this->db->close();
- else
- mysql_close($this->db);
+ if ($this->db) {
+ switch ($this->driver) {
+ case 'pdo':
+ $this->db = null;
+ break;
+ case 'mysqli':
+ $this->db->close();
+ break;
+ case 'mysql':
+ mysql_close($this->db);
+ break;
+ }
+ }
}
-}}
+}
-if(! function_exists('printable')) {
function printable($s) {
$s = preg_replace("~([\x01-\x08\x0E-\x0F\x10-\x1F\x7F-\xFF])~",".", $s);
$s = str_replace("\x00",'.',$s);
- if(x($_SERVER,'SERVER_NAME'))
+ if (x($_SERVER,'SERVER_NAME')) {
$s = escape_tags($s);
+ }
return $s;
-}}
+}
// Procedural functions
-if(! function_exists('dbg')) {
function dbg($state) {
global $db;
- if($db)
- $db->dbg($state);
-}}
-if(! function_exists('dbesc')) {
+ if ($db) {
+ $db->dbg($state);
+ }
+}
+
function dbesc($str) {
global $db;
- if($db && $db->connected)
+
+ if ($db && $db->connected) {
return($db->escape($str));
- else
+ } else {
return(str_replace("'","\\'",$str));
-}}
-
-
+ }
+}
// Function: q($sql,$args);
// Description: execute SQL query with printf style args.
// Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
// 'user', 1);
-
-if(! function_exists('q')) {
function q($sql) {
-
global $db;
$args = func_get_args();
unset($args[0]);
- if($db && $db->connected) {
+ if ($db && $db->connected) {
$stmt = @vsprintf($sql,$args); // Disabled warnings
//logger("dba: q: $stmt", LOGGER_ALL);
- if($stmt === false)
+ if ($stmt === false)
logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
+
+ $db->log_index($stmt);
+
return $db->q($stmt);
}
*/
logger('dba: no database: ' . print_r($args,true));
return false;
+}
+
+/**
+ * @brief Performs a query with "dirty reads"
+ *
+ * By doing dirty reads (reading uncommitted data) no locks are performed
+ * This function can be used to fetch data that doesn't need to be reliable.
+ *
+ * @param $args Query parameters (1 to N parameters of different types)
+ * @return array Query array
+ */
+function qu($sql) {
+ global $db;
-}}
+ $args = func_get_args();
+ unset($args[0]);
+
+ if ($db && $db->connected) {
+ $stmt = @vsprintf($sql,$args); // Disabled warnings
+ if ($stmt === false)
+ logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
+
+ $db->log_index($stmt);
+
+ $db->q("SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;");
+ $retval = $db->q($stmt);
+ $db->q("SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;");
+ return $retval;
+ }
+
+ /**
+ *
+ * This will happen occasionally trying to store the
+ * session data after abnormal program termination
+ *
+ */
+ logger('dba: no database: ' . print_r($args,true));
+ return false;
+}
/**
*
* Raw db query, no arguments
*
*/
-
-if(! function_exists('dbq')) {
function dbq($sql) {
-
global $db;
- if($db && $db->connected)
+
+ if ($db && $db->connected) {
$ret = $db->q($sql);
- else
+ } else {
$ret = false;
+ }
return $ret;
-}}
-
+}
// Caller is responsible for ensuring that any integer arguments to
// dbesc_array are actually integers and not malformed strings containing
// SQL injection vectors. All integer array elements should be specifically
// cast to int to avoid trouble.
-
-
-if(! function_exists('dbesc_array_cb')) {
function dbesc_array_cb(&$item, $key) {
- if(is_string($item))
+ if (is_string($item))
$item = dbesc($item);
-}}
-
+}
-if(! function_exists('dbesc_array')) {
function dbesc_array(&$arr) {
- if(is_array($arr) && count($arr)) {
+ if (is_array($arr) && count($arr)) {
array_walk($arr,'dbesc_array_cb');
}
-}}
-
+}
function dba_timer() {
return microtime(true);
projects / friendica.git / blobdiff