X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fdba.php;h=86a3762b44f041945891eca407e5e31269fd7b77;hb=b50769b6d09549e1641bab1813087fd928602129;hp=4e3f11f7befbfbfa15666dafc698a88912ef9c9c;hpb=f4fd67992812c5c356ff51e875077921a2222d90;p=friendica.git

diff --git a/include/dba.php b/include/dba.php
index 4e3f11f7be..86a3762b44 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -1,88 +1,286 @@
 <?php
+require_once("dbm.php");
 
-// MySQL database class
-//
-// For debugging, insert 'dbg(x);' anywhere in the program flow.
-// x = 1: display db success/failure following content
-// x = 2: display full queries following content
-// x = 3: display full queries using echo; which will mess up display
-//        really bad but will return output in stubborn cases.
- 
-if(! class_exists('dba')) { 
+# 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');
+
+/**
+ * @class MySQL database class
+ *
+ * For debugging, insert 'dbg(1);' anywhere in the program flow.
+ * dbg(0); will turn it off. Logging is performed at LOGGER_DATA level.
+ * When logging, all binary info is converted to text and html entities are escaped so that
+ * the debugging stream is safe to view within both terminals and web pages.
+ *
+ */
+
+if(! class_exists('dba')) {
 class dba {
 
 	private $debug = 0;
 	private $db;
+	private $result;
+	public  $mysqli = true;
+	public  $connected = false;
+	public  $error = false;
 
 	function __construct($server,$user,$pass,$db,$install = false) {
-		$this->db = @new mysqli($server,$user,$pass,$db);
-		if((mysqli_connect_errno()) && (! $install))
-			system_unavailable();    
+		global $a;
+
+		$stamp1 = microtime(true);
+
+		$server = trim($server);
+		$user = trim($user);
+		$pass = trim($pass);
+		$db = trim($db);
+
+		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);
+					$this->connected = false;
+					$this->db = null;
+					return;
+				}
+			}
+		}
+
+		if(class_exists('mysqli')) {
+			$this->db = @new mysqli($server,$user,$pass,$db);
+			if(! mysqli_connect_errno()) {
+				$this->connected = true;
+			}
+			if (isset($a->config["system"]["db_charset"]))
+				$this->db->set_charset($a->config["system"]["db_charset"]);
+		}
+		else {
+			$this->mysqli = false;
+			$this->db = mysql_connect($server,$user,$pass);
+			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);
+		}
+		if(! $this->connected) {
+			$this->db = null;
+			if(! $install)
+				system_unavailable();
+		}
+
+		$a->save_timestamp($stamp1, "network");
 	}
 
 	public function getdb() {
 		return $this->db;
 	}
 
-	public function q($sql) {
-		global $debug_text;
-		
-		if(! $this->db )
+	/**
+	 * @brief Returns the MySQL server version string
+	 * 
+	 * This function discriminate between the deprecated mysql API and the current
+	 * object-oriented mysqli API. Example of returned string: 5.5.46-0+deb8u1
+	 *
+	 * @return string
+	 */
+	public function server_info() {
+		if ($this->mysqli) {
+			$return = $this->db->server_info;
+		} else {
+			$return = mysql_get_server_info($this->db);
+		}
+		return $return;
+	}
+
+	public function q($sql, $onlyquery = false) {
+		global $a;
+
+		if((! $this->db) || (! $this->connected))
 			return false;
-		
-		$result = @$this->db->query($sql);
+
+		$this->error = '';
+
+		// Check the connection (This can reconnect the connection - if configured)
+		if ($this->mysqli)
+			$connected = $this->db->ping();
+		else
+			$connected = mysql_ping($this->db);
+
+		$connstr = ($connected ? "Connected": "Disonnected");
+
+		$stamp1 = microtime(true);
+
+		if($this->mysqli)
+			$result = @$this->db->query($sql);
+		else
+			$result = @mysql_query($sql,$this->db);
+
+		$stamp2 = microtime(true);
+		$duration = (float)($stamp2-$stamp1);
+
+		$a->save_timestamp($stamp1, "database");
+
+		if (strtolower(substr($sql, 0, 6)) != "select")
+			$a->save_timestamp($stamp1, "database_write");
+
+		if(x($a->config,'system') && x($a->config['system'],'db_log')) {
+			if (($duration > $a->config["system"]["db_loglimit"])) {
+				$duration = round($duration, 3);
+				$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+				@file_put_contents($a->config["system"]["db_log"], datetime_convert()."\t".$duration."\t".
+						basename($backtrace[1]["file"])."\t".
+						$backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
+						substr($sql, 0, 2000)."\n", FILE_APPEND);
+			}
+		}
+
+		if($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);
+		}
+
+		if(strlen($this->error)) {
+			logger('DB Error ('.$connstr.') '.$this->errorno.': '.$this->error);
+		}
 
 		if($this->debug) {
 
 			$mesg = '';
 
-			if($this->db->errno)
-				logger('dba: ' . $this->db->error);
-
 			if($result === false)
 				$mesg = 'false';
 			elseif($result === true)
 				$mesg = 'true';
-			else
-				$mesg = $result->num_rows.' results' . EOL;
-        
-			$str =  'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg . EOL;
+			else {
+				if($this->mysqli)
+					$mesg = $result->num_rows . ' results' . EOL;
+    			else
+					$mesg = mysql_num_rows($result) . ' results' . EOL;
+			}
+
+			$str =  'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg
+				. (($this->error) ? ' error: ' . $this->error : '')
+				. EOL;
 
 			logger('dba: ' . $str );
 		}
-		else {
-			if($result === false) {
-				logger('dba: ' . printable($sql) . ' returned false.');
-				if(file_exists('dbfail.out'))
-					file_put_contents('dbfail.out', printable($sql) . ' returned false' . "\n", FILE_APPEND);
-			}
+
+		/**
+		 * If dbfail.out exists, we will write any failed calls directly to it,
+		 * regardless of any logging that may or may nor be in effect.
+		 * These usually indicate SQL syntax errors that need to be resolved.
+		 */
+
+		if($result === false) {
+			logger('dba: ' . printable($sql) . ' returned false.' . "\n" . $this->error);
+			if(file_exists('dbfail.out'))
+				file_put_contents('dbfail.out', datetime_convert() . "\n" . printable($sql) . ' returned false' . "\n" . $this->error . "\n", FILE_APPEND);
 		}
 
 		if(($result === true) || ($result === false))
 			return $result;
 
+		if ($onlyquery) {
+			$this->result = $result;
+			return true;
+		}
+
 		$r = array();
-		if($result->num_rows) {
-			while($x = $result->fetch_array(MYSQL_ASSOC))
-				$r[] = $x;
-			$result->free_result();
+		if($this->mysqli) {
+			if($result->num_rows) {
+				while($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))
+					$r[] = $x;
+				mysql_free_result($result);
+			}
+		}
+
+		//$a->save_timestamp($stamp1, "database");
+
 		if($this->debug)
-			logger('dba: ' . printable(print_r($r, true)), LOGGER_DATA);
+			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)
+					$x = $this->result->fetch_array(MYSQLI_ASSOC);
+			} else {
+				if(mysql_num_rows($this->result))
+					$x = mysql_fetch_array($this->result, MYSQL_ASSOC);
+			}
+
+		return($x);
+	}
+
+	public function qclose() {
+		if ($this->result)
+			if($this->mysqli) {
+				$this->result->free_result();
+			} else {
+				mysql_free_result($this->result);
+			}
+	}
+
 	public function dbg($dbg) {
 		$this->debug = $dbg;
 	}
 
 	public function escape($str) {
-		return @$this->db->real_escape_string($str);
+		if($this->db && $this->connected) {
+			if($this->mysqli)
+				return @$this->db->real_escape_string($str);
+			else
+				return @mysql_real_escape_string($str,$this->db);
+		}
+	}
+
+	function connected() {
+		if ($this->mysqli)
+			$connected = $this->db->ping();
+		else
+			$connected = mysql_ping($this->db);
+
+		return $connected;
 	}
 
 	function __destruct() {
-		@$this->db->close();
+		if ($this->db)
+			if($this->mysqli)
+				$this->db->close();
+			else
+				mysql_close($this->db);
 	}
 }}
 
@@ -96,49 +294,77 @@ function printable($s) {
 }}
 
 // Procedural functions
-if(! function_exists('dbg')) { 
+if(! function_exists('dbg')) {
 function dbg($state) {
 	global $db;
+	if($db)
 	$db->dbg($state);
 }}
 
-if(! function_exists('dbesc')) { 
+if(! function_exists('dbesc')) {
 function dbesc($str) {
 	global $db;
-	return($db->escape($str));
+	if($db && $db->connected)
+		return($db->escape($str));
+	else
+		return(str_replace("'","\\'",$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')) { 
+if(! function_exists('q')) {
 function q($sql) {
 
 	global $db;
 	$args = func_get_args();
 	unset($args[0]);
-	$ret = $db->q(vsprintf($sql,$args));
-	return $ret;
+
+	if($db && $db->connected) {
+		$stmt = @vsprintf($sql,$args); // Disabled warnings
+		//logger("dba: q: $stmt", LOGGER_ALL);
+		if($stmt === false)
+			logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
+		return $db->q($stmt);
+	}
+
+	/**
+	 *
+	 * 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
+/**
+ *
+ * Raw db query, no arguments
+ *
+ */
 
-if(! function_exists('dbq')) { 
+if(! function_exists('dbq')) {
 function dbq($sql) {
 
 	global $db;
-	$ret = $db->q($sql);
+	if($db && $db->connected)
+		$ret = $db->q($sql);
+	else
+		$ret = false;
 	return $ret;
 }}
 
 
-// Caller is responsible for ensuring that any integer arguments to 
+// 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. 
+// SQL injection vectors. All integer array elements should be specifically
+// cast to int to avoid trouble.
 
 
 if(! function_exists('dbesc_array_cb')) {
@@ -153,4 +379,9 @@ function dbesc_array(&$arr) {
 	if(is_array($arr) && count($arr)) {
 		array_walk($arr,'dbesc_array_cb');
 	}
-}}		
\ No newline at end of file
+}}
+
+
+function dba_timer() {
+	return microtime(true);
+}