]> git.mxchange.org Git - friendica.git/blobdiff - include/dba.php
modified: view/theme/smoothly/style.css
[friendica.git] / include / dba.php
index 1421a703dc730ad1a7eb803e30c632ff0d17937c..8d224b570f44299c431f087392cc5e735787ef27 100644 (file)
@@ -8,273 +8,213 @@ require_once('include/datetime.php');
  *
  * 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.
+ * 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;
+       public  $mysqli = true;
+       public  $connected = false;
+       public  $error = false;
+
+       function __construct($server,$user,$pass,$db,$install = false) {
+
+               $server = trim($server);
+               $user = trim($user);
+               $pass = trim($pass);
+               $db = trim($db);
+
+               if (!(strlen($server) && strlen($user))){
+                       $this->connected = false;
+                       $this->db = null;
+                       return;
+               }
 
-if(! class_exists('dba')) {
-
-       class dba {
-
-               private $debug = 0;
-               private $db;
-               private $exceptions; 
-               
-               public  $mysqli = true;
-               public  $connected = false;
-               public  $error = false;
-
-               function __construct($server,$user,$pass,$db,$install = false) {
-
-                       $server = trim($server);
-                       $user = trim($user);
-                       $pass = trim($pass);
-                       $db = trim($db);
-
-                       //we need both, server and username, so fail if one is missing
-                       if (!(strlen($server) && strlen($user))){
-                               $this->connected = false;
-                               $this->db = null;
-                               throw new InvalidArgumentException(t("Server name of user name are missing. "));
-                       }
-
-                       //when we are installing
-                       if($install) {
-                               if(strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
-                                       if(! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
-                                               $this->connected = false;
-                                               $this->db = null;
-                                               throw new InvalidArgumentException( 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')) {
-                               $this->db = new mysqli($server,$user,$pass,$db);
-                               if(NULL === $this->db->connect_error) {
-                                       $this->connected = true;
-                               } else {
-                                       throw new RuntimeException($this->db->connect_error);
-                               }
-                       } else {
-                               $this->mysqli = false;
-                               $this->db = mysql_connect($server,$user,$pass);
-                               if($this->db && mysql_select_db($db,$this->db)) {
-                                       $this->connected = true;
-                               } else {
-                                       throw new RuntimeException(mysql_error());
-                               }
+               if(class_exists('mysqli')) {
+                       $this->db = @new mysqli($server,$user,$pass,$db);
+                       if(! mysqli_connect_errno()) {
+                               $this->connected = true;
                        }
                }
-
-               public function excep($excep) {
-                       $this->exceptions=$excep; 
+               else {
+                       $this->mysqli = false;
+                       $this->db = mysql_connect($server,$user,$pass);
+                       if($this->db && mysql_select_db($db,$this->db)) {
+                               $this->connected = true;
+                       }
                }
-               
-               public function getdb() {
-                       return $this->db;
+               if(! $this->connected) {
+                       $this->db = null;
+                       if(! $install)
+                               system_unavailable();
                }
+       }
 
-               public function q($sql) {
-
-                       if((! $this->db) || (! $this->connected)) {
-                               $this->throwOrLog(new RuntimeException(t("There is no db connection. ")));
-                               return;
-                       }
+       public function getdb() {
+               return $this->db;
+       }
 
-                       if($this->mysqli) {
-                               $result = $this->db->query($sql);
-                       } else {
-                               $result = mysql_query($sql,$this->db);
-                       }
+       public function q($sql) {
+               global $a;
 
-                       //on debug mode or fail, the query is written to the log.
-                       //this won't work if logger can not read it's logging level
-                       //from the db.
-                       if($this->debug || FALSE === $result) {
-
-                               $mesg = '';
-
-                               if($result === false) {
-                                       $mesg = 'false '.$this->error();
-                               } elseif($result === true) {
-                                       $mesg = 'true';
-                               } else {
-                                       if($this->mysqli) {
-                                               $mesg = $result->num_rows . t(' results') . EOL;
-                                       } else {
-                                               $mesg = mysql_num_rows($result) . t(' results') . EOL;
-                                       }
-                               }
+               if((! $this->db) || (! $this->connected))
+                       return false;
 
-                               $str =  'SQL = ' . printable($sql) . EOL . t('SQL returned ') . $mesg . EOL;
+               $this->error = '';
 
+               if(x($a->config,'system') && x($a->config['system'],'db_log'))
+                       $stamp1 = microtime(true);
 
-                        // 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(file_exists('dbfail.out')) {\r
-                                       file_put_contents('dbfail.out', datetime_convert() . "\n" . $str . "\n", FILE_APPEND);
-                               }
-                               logger('dba: ' . $str );
-                               if(FALSE===$result) {
-                                       $this->throwOrLog(new RuntimeException('dba: ' . $str));
-                                       return; 
-                               }
+               if($this->mysqli)
+                       $result = @$this->db->query($sql);
+               else
+                       $result = @mysql_query($sql,$this->db);
+
+               if(x($a->config,'system') && x($a->config['system'],'db_log')) {
+                       $stamp2 = microtime(true);
+                       $duration = round($stamp2-$stamp1, 3);
+                       if ($duration > $a->config["system"]["db_loglimit"]) {
+                               $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+                               @file_put_contents($a->config["system"]["db_log"], $duration."\t".
+                                               basename($backtrace[1]["file"])."\t".
+                                               $backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
+                                               substr($sql, 0, 2000)."\n", FILE_APPEND);
                        }
-                               
+               }
 
-                       if($result === true) {
-                               return $result;
-                       }
+               if($this->mysqli) {
+                       if($this->db->errno)
+                               $this->error = $this->db->error;
+               }
+               elseif(mysql_errno($this->db))
+                               $this->error = mysql_error($this->db);
 
-                       $r = array();
-                       if($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);
-                               }
-                       }
+               if(strlen($this->error)) {
+                       logger('dba: ' . $this->error);
+               }
 
+               if($this->debug) {
 
-                       if($this->debug) {
-                               logger('dba: ' . printable(print_r($r, true)));
-                       }
-                       return($r);
-               }
+                       $mesg = '';
 
-               private function error() {
-                       if($this->mysqli) {
-                               return $this->db->error;
-                       } else {
-                               return mysql_error($this->db);
+                       if($result === false)
+                               $mesg = 'false';
+                       elseif($result === true)
+                               $mesg = 'true';
+                       else {
+                               if($this->mysqli)
+                                       $mesg = $result->num_rows . ' results' . EOL;
+                       else
+                                       $mesg = mysql_num_rows($result) . ' results' . EOL;
                        }
-               }
-               
-               private function throwOrLog(Exception $ex) {
-                       if($this->exceptions) {
-                               throw $ex; 
-                       } else {
-                               logger('dba: '.$ex->getMessage()); 
-                       }
-               }
-               
-               /**
-                * starts a transaction. Transactions need to be finished with 
-                * commit() or rollback(). Please mind that the db table engine may
-                * not support this. 
-                */
-               public function beginTransaction() {\r
-                       if($this->mysqli) {\r
-                               return $this->db->autocommit(false);\r
-                       } else {\r
-                               //no transaction support in mysql module...
-                               mysql_query('SET AUTOCOMMIT = 0;', $db); \r
-                       }\r
-               }
-               
-               /**
-                * rollback a transaction. So, rollback anything that was done since the last call 
-                * to beginTransaction(). 
-                */
-               public function rollback() {\r
-                       if($this->mysqli) {\r
-                               return $this->db->rollback();\r
-                       } else {\r
-                               //no transaction support in mysql module...
-                               mysql_query('ROLLBACK;', $db);\r
-                       }
-                       $this->stopTransaction(); \r
+
+                       $str =  'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg
+                               . (($this->error) ? ' error: ' . $this->error : '')
+                               . EOL;
+
+                       logger('dba: ' . $str );
                }
 
                /**
-                * commit a transaction. So, write any query to the database. 
+                * 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.
                 */
-               public function commit() {\r
-                       if($this->mysqli) {\r
-                               return $this->db->commit();\r
-                       } else {\r
-                               //no transaction support in mysql module...\r
-                               mysql_query('COMMIT;', $db);\r
-                       }\r
-                       $this->stopTransaction();\r
-               }
-               
-               private function stopTransaction() {\r
-                       if($this->mysqli) {\r
-                               return $this->db->autocommit(true);\r
-                       } else {\r
-                               //no transaction support in mysql module...\r
-                               mysql_query('SET AUTOCOMMIT = 1;', $db);\r
-                       }\r
-               }
-               
-               public function dbg($dbg) {
-                       $this->debug = $dbg;
+
+               if($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);
                }
 
-               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(($result === true) || ($result === false))
+                       return $result;
+
+               $r = array();
+               if($this->mysqli) {
+                       if($result->num_rows) {
+                               while($x = $result->fetch_array(MYSQLI_ASSOC))
+                                       $r[] = $x;
+                               $result->free_result();
                        }
                }
-
-               function __destruct() {
-                       if ($this->db) {
-                               if($this->mysqli) {
-                                       $this->db->close();
-                               }
-                       } else {
-                               mysql_close($this->db);
+               else {
+                       if(mysql_num_rows($result)) {
+                               while($x = mysql_fetch_array($result, MYSQL_ASSOC))
+                                       $r[] = $x;
+                               mysql_free_result($result);
                        }
                }
+
+
+               if($this->debug)
+                       logger('dba: ' . printable(print_r($r, true)));
+               return($r);
        }
-}
 
-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'))
-                       $s = escape_tags($s);
-               return $s;
+       public function dbg($dbg) {
+               $this->debug = $dbg;
        }
-}
 
-// Procedural functions
-if(! function_exists('dbg')) {
-       function dbg($state) {
-               global $db;
-               if($db)
-                       $db->dbg($state);
+       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(! function_exists('dbesc')) {
-       function dbesc($str) {
-               global $db;
-               if($db && $db->connected)
-                       return($db->escape($str));
-               else
-                       return(str_replace("'","\\'",$str));
+       function __destruct() {
+               if ($this->db) 
+                       if($this->mysqli)
+                               $this->db->close();
+                       else
+                               mysql_close($this->db);
        }
-}
+}}
+
+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'))
+               $s = escape_tags($s);
+       return $s;
+}}
+
+// Procedural functions
+if(! function_exists('dbg')) { 
+function dbg($state) {
+       global $db;
+       if($db)
+       $db->dbg($state);
+}}
+
+if(! function_exists('dbesc')) { 
+function dbesc($str) {
+       global $db;
+       if($db && $db->connected)
+               return($db->escape($str));
+       else
+               return(str_replace("'","\\'",$str));
+}}
 
 
 
@@ -283,31 +223,30 @@ if(! function_exists('dbesc')) {
 // Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
 //                   'user', 1);
 
-if(! function_exists('q')) {
-       function q($sql) {
+if(! function_exists('q')) { 
+function q($sql) {
 
-               global $db;
-               $args = func_get_args();
-               unset($args[0]);
+       global $db;
+       $args = func_get_args();
+       unset($args[0]);
 
-               if($db && $db->connected) {
-                       $stmt = vsprintf($sql,$args);
-                       if($stmt === false)
-                               logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true));
-                       return $db->q($stmt);
-               }
+       if($db && $db->connected) {
+               $stmt = vsprintf($sql,$args);
+               if($stmt === false)
+                       logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true));
+               return $db->q($stmt);
+       }
 
-               /**
-                *
-                * This will happen occasionally trying to store the
-                * session data after abnormal program termination
-                *
-                */
-               logger('dba: no database: ' . print_r($args,true));
-               return false;
+       /**
+        *
+        * This will happen occasionally trying to store the 
+        * session data after abnormal program termination 
+        *
+        */
+       logger('dba: no database: ' . print_r($args,true));
+       return false; 
 
-       }
-}
+}}
 
 /**
  *
@@ -315,39 +254,40 @@ if(! function_exists('q')) {
  *
  */
 
-if(! function_exists('dbq')) {
-       function dbq($sql) {
+if(! function_exists('dbq')) { 
+function dbq($sql) {
 
-               global $db;
-               if($db && $db->connected)
-                       $ret = $db->q($sql);
-               else
-                       $ret = false;
-               return $ret;
-       }
-}
+       global $db;
+       if($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')) {
-       function dbesc_array_cb(&$item, $key) {
-               if(is_string($item))
-                       $item = dbesc($item);
-       }
-}
+function dbesc_array_cb(&$item, $key) {
+       if(is_string($item))
+               $item = dbesc($item);
+}}
 
 
 if(! function_exists('dbesc_array')) {
-       function dbesc_array(&$arr) {
-               if(is_array($arr) && count($arr)) {
-                       array_walk($arr,'dbesc_array_cb');
-               }
+function dbesc_array(&$arr) {
+       if(is_array($arr) && count($arr)) {
+               array_walk($arr,'dbesc_array_cb');
        }
-}
+}}
 
 
+function dba_timer() {
+       return microtime(true);
+}
+