3 require_once('include/datetime.php');
9 * For debugging, insert 'dbg(1);' anywhere in the program flow.
10 * dbg(0); will turn it off. Logging is performed at LOGGER_DATA level.
11 * When logging, all binary info is converted to text and html entities are escaped so that
12 * the debugging stream is safe to view within both terminals and web pages.
16 if(! class_exists('dba')) {
21 public $mysqli = true;
22 public $connected = false;
23 public $error = false;
25 function __construct($server,$user,$pass,$db,$install = false) {
27 $server = trim($server);
32 if (!(strlen($server) && strlen($user))){
33 $this->connected = false;
39 if(strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
40 if(! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
41 $this->error = sprintf( t('Cannot locate DNS info for database server \'%s\''), $server);
42 $this->connected = false;
49 if(class_exists('mysqli')) {
50 $this->db = @new mysqli($server,$user,$pass,$db);
51 if(! mysqli_connect_errno()) {
52 $this->connected = true;
56 $this->mysqli = false;
57 $this->db = mysql_connect($server,$user,$pass);
58 if($this->db && mysql_select_db($db,$this->db)) {
59 $this->connected = true;
62 if(! $this->connected) {
69 public function getdb() {
73 public function q($sql) {
75 if((! $this->db) || (! $this->connected))
81 $result = @$this->db->query($sql);
83 $result = @mysql_query($sql,$this->db);
87 $this->error = $this->db->error;
89 elseif(mysql_errno($this->db))
90 $this->error = mysql_error($this->db);
92 if(strlen($this->error)) {
93 logger('dba: ' . $this->error);
100 if($result === false)
102 elseif($result === true)
106 $mesg = $result->num_rows . ' results' . EOL;
108 $mesg = mysql_num_rows($result) . ' results' . EOL;
111 $str = 'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg
112 . (($this->error) ? ' error: ' . $this->error : '')
115 logger('dba: ' . $str );
119 * If dbfail.out exists, we will write any failed calls directly to it,
120 * regardless of any logging that may or may nor be in effect.
121 * These usually indicate SQL syntax errors that need to be resolved.
124 if($result === false) {
125 logger('dba: ' . printable($sql) . ' returned false.' . "\n" . $this->error);
126 if(file_exists('dbfail.out'))
127 file_put_contents('dbfail.out', datetime_convert() . "\n" . printable($sql) . ' returned false' . "\n" . $this->error . "\n", FILE_APPEND);
130 if(($result === true) || ($result === false))
135 if($result->num_rows) {
136 while($x = $result->fetch_array(MYSQLI_ASSOC))
138 $result->free_result();
142 if(mysql_num_rows($result)) {
143 while($x = mysql_fetch_array($result, MYSQL_ASSOC))
145 mysql_free_result($result);
151 logger('dba: ' . printable(print_r($r, true)));
155 public function dbg($dbg) {
159 public function escape($str) {
160 if($this->db && $this->connected) {
162 return @$this->db->real_escape_string($str);
164 return @mysql_real_escape_string($str,$this->db);
168 function __destruct() {
173 mysql_close($this->db);
177 if(! function_exists('printable')) {
178 function printable($s) {
179 $s = preg_replace("~([\x01-\x08\x0E-\x0F\x10-\x1F\x7F-\xFF])~",".", $s);
180 $s = str_replace("\x00",'.',$s);
181 if(x($_SERVER,'SERVER_NAME'))
182 $s = escape_tags($s);
186 // Procedural functions
187 if(! function_exists('dbg')) {
188 function dbg($state) {
194 if(! function_exists('dbesc')) {
195 function dbesc($str) {
197 if($db && $db->connected)
198 return($db->escape($str));
200 return(str_replace("'","\\'",$str));
205 // Function: q($sql,$args);
206 // Description: execute SQL query with printf style args.
207 // Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
210 if(! function_exists('q')) {
214 $args = func_get_args();
217 if($db && $db->connected) {
218 $stmt = vsprintf($sql,$args);
220 logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true));
221 return $db->q($stmt);
226 * This will happen occasionally trying to store the
227 * session data after abnormal program termination
230 logger('dba: no database: ' . print_r($args,true));
237 * Raw db query, no arguments
241 if(! function_exists('dbq')) {
245 if($db && $db->connected)
253 // Caller is responsible for ensuring that any integer arguments to
254 // dbesc_array are actually integers and not malformed strings containing
255 // SQL injection vectors. All integer array elements should be specifically
256 // cast to int to avoid trouble.
259 if(! function_exists('dbesc_array_cb')) {
260 function dbesc_array_cb(&$item, $key) {
262 $item = dbesc($item);
266 if(! function_exists('dbesc_array')) {
267 function dbesc_array(&$arr) {
268 if(is_array($arr) && count($arr)) {
269 array_walk($arr,'dbesc_array_cb');