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();
$stamp1 = microtime(true);
}
if (!$this->connected) {
$this->db = null;
- if (!$install)
+ if (!$install) {
system_unavailable();
+ }
}
$a->save_timestamp($stamp1, "network");
return $return;
}
+ /**
+ * @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)
+ if (!$this->result) {
return 0;
+ }
if ($this->mysqli) {
$return = $this->result->num_rows;
return $return;
}
+ /**
+ * @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 = '';
} else {
$connected = mysql_ping($this->db);
}
- $connstr = ($connected ? "Connected": "Disonnected");
+ $connstr = ($connected ? "Connected" : "Disonnected");
$stamp1 = microtime(true);
$orig_sql = $sql;
- if (x($a->config,'system') && x($a->config['system'],'db_callstack')) {
+ if (x($a->config,'system') && x($a->config['system'], 'db_callstack')) {
$sql = "/*".$a->callstack()." */ ".$sql;
}
$a->save_timestamp($stamp1, "database");
- if (strtolower(substr($orig_sql, 0, 6)) != "select")
+ if (strtolower(substr($orig_sql, 0, 6)) != "select") {
$a->save_timestamp($stamp1, "database_write");
-
+ }
if (x($a->config,'system') && x($a->config['system'],'db_log')) {
if (($duration > $a->config["system"]["db_loglimit"])) {
$duration = round($duration, 3);
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) || ($result === false))
+ if (($result === true) || ($result === false)) {
return $result;
-
+ }
if ($onlyquery) {
$this->result = $result;
return true;
//$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 ($this->result) {
if ($this->mysqli) {
if ($this->result->num_rows)
$x = $this->result->fetch_array(MYSQLI_ASSOC);
if (mysql_num_rows($this->result))
$x = mysql_fetch_array($this->result, MYSQL_ASSOC);
}
-
+ }
return($x);
}
public function qclose() {
- if ($this->result)
+ if ($this->result) {
if ($this->mysqli) {
$this->result->free_result();
} else {
mysql_free_result($this->result);
}
+ }
}
public function dbg($dbg) {
function printable($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 $s;
}}
if (! function_exists('dbg')) {
function dbg($state) {
global $db;
- if ($db)
- $db->dbg($state);
+ if ($db) {
+ $db->dbg($state);
+ }
}}
if (! function_exists('dbesc')) {
//logger("dba: q: $stmt", LOGGER_ALL);
if ($stmt === false)
logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
+
+ $db->log_index($stmt);
+
return $db->q($stmt);
}
$stmt = @vsprintf($sql,$args); // Disabled warnings
if ($stmt === false)
logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
- $db->q("SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;");
+
+ $db->log_index($stmt);
+
+ $db->q("SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;");
$retval = $db->q($stmt);
- $db->q("COMMIT;");
+ $db->q("SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;");
return $retval;
}
projects / friendica.git / blobdiff