<?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.
+require_once('include/datetime.php');
+
+/**
+ *
+ * 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;
+ 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();
+
+ $server = trim($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;
+ }
+ }
+ else {
+ $this->mysqli = false;
+ $this->db = mysql_connect($server,$user,$pass);
+ if($this->db && mysql_select_db($db,$this->db)) {
+ $this->connected = true;
+ }
+ }
+ if(! $this->connected) {
+ $this->db = null;
+ if(! $install)
+ system_unavailable();
+ }
+ }
+
+ public function getdb() {
+ return $this->db;
}
public function q($sql) {
- global $debug_text;
- if(! $this->db )
+ if((! $this->db) || (! $this->connected))
return false;
- $result = @$this->db->query($sql);
+ $this->error = '';
+
+ if($this->mysqli)
+ $result = @$this->db->query($sql);
+ else
+ $result = @mysql_query($sql,$this->db);
+
+ if($this->mysqli) {
+ if($this->db->errno)
+ $this->error = $this->db->error;
+ }
+ elseif(mysql_errno($this->db))
+ $this->error = mysql_error($this->db);
+
+ if(strlen($this->error)) {
+ logger('dba: ' . $this->error);
+ }
if($this->debug) {
$mesg = '';
- if($this->db->mysqli->errno)
- $debug_text .= $this->db->mysqli->error . EOL;
-
if($result === false)
$mesg = 'false';
elseif($result === true)
$mesg = 'true';
- else
- $mesg = $result->num_rows.' results' . EOL;
-
- $str = 'SQL = ' . $sql . EOL . 'SQL returned ' . $mesg . EOL;
-
- switch($this->debug) {
- case 3:
- echo $str;
- break;
- default:
- $debug_text .= $str;
- break;
+ else {
+ if($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: ' . $str );
+ }
+
+ /**
+ * If dbfail.out exists, we will write any failed calls directly to it,
+ * regardless of any logging that may or may nor be in effect.
+ * These usually indicate SQL syntax errors that need to be resolved.
+ */
+
+ if($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;
$r = array();
- if($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);
+ }
}
-
- if($this->debug == 2)
- $debug_text .= printable(print_r($r, true). EOL);
- elseif($this->debug == 3)
- echo printable(print_r($r, true) . EOL) ;
+
+ if($this->debug)
+ logger('dba: ' . printable(print_r($r, true)));
return($r);
}
}
public function escape($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 __destruct() {
- @$this->db->close();
+ if ($this->db)
+ if($this->mysqli)
+ $this->db->close();
+ else
+ mysql_close($this->db);
}
}}
if(! function_exists('dbg')) {
function dbg($state) {
global $db;
+ if($db)
$db->dbg($state);
}}
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",
global $db;
$args = func_get_args();
unset($args[0]);
- $ret = $db->q(vsprintf($sql,$args));
+
+ if($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($args,true));
+ return false;
+
+}}
+
+/**
+ *
+ * Raw db query, no arguments
+ *
+ */
+
+if(! function_exists('dbq')) {
+function dbq($sql) {
+
+ global $db;
+ if($db && $db->connected)
+ $ret = $db->q($sql);
+ else
+ $ret = false;
return $ret;
}}
if(is_array($arr) && count($arr)) {
array_walk($arr,'dbesc_array_cb');
}
-}}
\ No newline at end of file
+}}
projects / friendica.git / blobdiff