X-Git-Url: https://scripts.mit.edu/gitweb/autoinstallsdev/mediawiki.git/blobdiff_plain/19e297c21b10b1b8a3acad5e73fc71dcb35db44a..6932310fd58ebef145fa01eb76edf7150284d8ea:/vendor/pear/pear-core-minimal/src/PEAR/ErrorStack.php diff --git a/vendor/pear/pear-core-minimal/src/PEAR/ErrorStack.php b/vendor/pear/pear-core-minimal/src/PEAR/ErrorStack.php new file mode 100644 index 00000000..7af45bfa --- /dev/null +++ b/vendor/pear/pear-core-minimal/src/PEAR/ErrorStack.php @@ -0,0 +1,979 @@ + + * @copyright 2004-2008 Greg Beaver + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @link http://pear.php.net/package/PEAR_ErrorStack + */ + +/** + * Singleton storage + * + * Format: + *
+ * array( + * 'package1' => PEAR_ErrorStack object, + * 'package2' => PEAR_ErrorStack object, + * ... + * ) + *+ * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] + */ +$GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] = array(); + +/** + * Global error callback (default) + * + * This is only used if set to non-false. * is the default callback for + * all packages, whereas specific packages may set a default callback + * for all instances, regardless of whether they are a singleton or not. + * + * To exclude non-singletons, only set the local callback for the singleton + * @see PEAR_ErrorStack::setDefaultCallback() + * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'] + */ +$GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'] = array( + '*' => false, +); + +/** + * Global Log object (default) + * + * This is only used if set to non-false. Use to set a default log object for + * all stacks, regardless of instantiation order or location + * @see PEAR_ErrorStack::setDefaultLogger() + * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] + */ +$GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] = false; + +/** + * Global Overriding Callback + * + * This callback will override any error callbacks that specific loggers have set. + * Use with EXTREME caution + * @see PEAR_ErrorStack::staticPushCallback() + * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] + */ +$GLOBALS['_PEAR_ERRORSTACK_OVERRIDE_CALLBACK'] = array(); + +/**#@+ + * One of four possible return values from the error Callback + * @see PEAR_ErrorStack::_errorCallback() + */ +/** + * If this is returned, then the error will be both pushed onto the stack + * and logged. + */ +define('PEAR_ERRORSTACK_PUSHANDLOG', 1); +/** + * If this is returned, then the error will only be pushed onto the stack, + * and not logged. + */ +define('PEAR_ERRORSTACK_PUSH', 2); +/** + * If this is returned, then the error will only be logged, but not pushed + * onto the error stack. + */ +define('PEAR_ERRORSTACK_LOG', 3); +/** + * If this is returned, then the error is completely ignored. + */ +define('PEAR_ERRORSTACK_IGNORE', 4); +/** + * If this is returned, then the error is logged and die() is called. + */ +define('PEAR_ERRORSTACK_DIE', 5); +/**#@-*/ + +/** + * Error code for an attempt to instantiate a non-class as a PEAR_ErrorStack in + * the singleton method. + */ +define('PEAR_ERRORSTACK_ERR_NONCLASS', 1); + +/** + * Error code for an attempt to pass an object into {@link PEAR_ErrorStack::getMessage()} + * that has no __toString() method + */ +define('PEAR_ERRORSTACK_ERR_OBJTOSTRING', 2); +/** + * Error Stack Implementation + * + * Usage: + *
+ * // global error stack
+ * $global_stack = &PEAR_ErrorStack::singleton('MyPackage');
+ * // local error stack
+ * $local_stack = new PEAR_ErrorStack('MyPackage');
+ *
+ * @author Greg Beaver
+ * array(
+ * 'code' => $code,
+ * 'params' => $params,
+ * 'package' => $this->_package,
+ * 'level' => $level,
+ * 'time' => time(),
+ * 'context' => $context,
+ * 'message' => $msg,
+ * //['repackage' => $err] repackaged error array/Exception class
+ * );
+ *
+ *
+ * Normally, the previous array is returned.
+ */
+ function push($code, $level = 'error', $params = array(), $msg = false,
+ $repackage = false, $backtrace = false)
+ {
+ $context = false;
+ // grab error context
+ if ($this->_contextCallback) {
+ if (!$backtrace) {
+ $backtrace = debug_backtrace();
+ }
+ $context = call_user_func($this->_contextCallback, $code, $params, $backtrace);
+ }
+
+ // save error
+ $time = explode(' ', microtime());
+ $time = $time[1] + $time[0];
+ $err = array(
+ 'code' => $code,
+ 'params' => $params,
+ 'package' => $this->_package,
+ 'level' => $level,
+ 'time' => $time,
+ 'context' => $context,
+ 'message' => $msg,
+ );
+
+ if ($repackage) {
+ $err['repackage'] = $repackage;
+ }
+
+ // set up the error message, if necessary
+ if ($this->_msgCallback) {
+ $msg = call_user_func_array($this->_msgCallback,
+ array(&$this, $err));
+ $err['message'] = $msg;
+ }
+ $push = $log = true;
+ $die = false;
+ // try the overriding callback first
+ $callback = $this->staticPopCallback();
+ if ($callback) {
+ $this->staticPushCallback($callback);
+ }
+ if (!is_callable($callback)) {
+ // try the local callback next
+ $callback = $this->popCallback();
+ if (is_callable($callback)) {
+ $this->pushCallback($callback);
+ } else {
+ // try the default callback
+ $callback = isset($GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'][$this->_package]) ?
+ $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'][$this->_package] :
+ $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK']['*'];
+ }
+ }
+ if (is_callable($callback)) {
+ switch(call_user_func($callback, $err)){
+ case PEAR_ERRORSTACK_IGNORE:
+ return $err;
+ break;
+ case PEAR_ERRORSTACK_PUSH:
+ $log = false;
+ break;
+ case PEAR_ERRORSTACK_LOG:
+ $push = false;
+ break;
+ case PEAR_ERRORSTACK_DIE:
+ $die = true;
+ break;
+ // anything else returned has the same effect as pushandlog
+ }
+ }
+ if ($push) {
+ array_unshift($this->_errors, $err);
+ if (!isset($this->_errorsByLevel[$err['level']])) {
+ $this->_errorsByLevel[$err['level']] = array();
+ }
+ $this->_errorsByLevel[$err['level']][] = &$this->_errors[0];
+ }
+ if ($log) {
+ if ($this->_logger || $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER']) {
+ $this->_log($err);
+ }
+ }
+ if ($die) {
+ die();
+ }
+ if ($this->_compat && $push) {
+ return $this->raiseError($msg, $code, null, null, $err);
+ }
+ return $err;
+ }
+
+ /**
+ * Static version of {@link push()}
+ *
+ * @param string $package Package name this error belongs to
+ * @param int $code Package-specific error code
+ * @param string $level Error level. This is NOT spell-checked
+ * @param array $params associative array of error parameters
+ * @param string $msg Error message, or a portion of it if the message
+ * is to be generated
+ * @param array $repackage If this error re-packages an error pushed by
+ * another package, place the array returned from
+ * {@link pop()} in this parameter
+ * @param array $backtrace Protected parameter: use this to pass in the
+ * {@link debug_backtrace()} that should be used
+ * to find error context
+ * @return PEAR_Error|array if compatibility mode is on, a PEAR_Error is also
+ * thrown. see docs for {@link push()}
+ */
+ public static function staticPush(
+ $package, $code, $level = 'error', $params = array(),
+ $msg = false, $repackage = false, $backtrace = false
+ ) {
+ $s = &PEAR_ErrorStack::singleton($package);
+ if ($s->_contextCallback) {
+ if (!$backtrace) {
+ if (function_exists('debug_backtrace')) {
+ $backtrace = debug_backtrace();
+ }
+ }
+ }
+ return $s->push($code, $level, $params, $msg, $repackage, $backtrace);
+ }
+
+ /**
+ * Log an error using PEAR::Log
+ * @param array $err Error array
+ * @param array $levels Error level => Log constant map
+ * @access protected
+ */
+ function _log($err)
+ {
+ if ($this->_logger) {
+ $logger = &$this->_logger;
+ } else {
+ $logger = &$GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'];
+ }
+ if (is_a($logger, 'Log')) {
+ $levels = array(
+ 'exception' => PEAR_LOG_CRIT,
+ 'alert' => PEAR_LOG_ALERT,
+ 'critical' => PEAR_LOG_CRIT,
+ 'error' => PEAR_LOG_ERR,
+ 'warning' => PEAR_LOG_WARNING,
+ 'notice' => PEAR_LOG_NOTICE,
+ 'info' => PEAR_LOG_INFO,
+ 'debug' => PEAR_LOG_DEBUG);
+ if (isset($levels[$err['level']])) {
+ $level = $levels[$err['level']];
+ } else {
+ $level = PEAR_LOG_INFO;
+ }
+ $logger->log($err['message'], $level, $err);
+ } else { // support non-standard logs
+ call_user_func($logger, $err);
+ }
+ }
+
+
+ /**
+ * Pop an error off of the error stack
+ *
+ * @return false|array
+ * @since 0.4alpha it is no longer possible to specify a specific error
+ * level to return - the last error pushed will be returned, instead
+ */
+ function pop()
+ {
+ $err = @array_shift($this->_errors);
+ if (!is_null($err)) {
+ @array_pop($this->_errorsByLevel[$err['level']]);
+ if (!count($this->_errorsByLevel[$err['level']])) {
+ unset($this->_errorsByLevel[$err['level']]);
+ }
+ }
+ return $err;
+ }
+
+ /**
+ * Pop an error off of the error stack, static method
+ *
+ * @param string package name
+ * @return boolean
+ * @since PEAR1.5.0a1
+ */
+ function staticPop($package)
+ {
+ if ($package) {
+ if (!isset($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package])) {
+ return false;
+ }
+ return $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->pop();
+ }
+ }
+
+ /**
+ * Determine whether there are any errors on the stack
+ * @param string|array Level name. Use to determine if any errors
+ * of level (string), or levels (array) have been pushed
+ * @return boolean
+ */
+ function hasErrors($level = false)
+ {
+ if ($level) {
+ return isset($this->_errorsByLevel[$level]);
+ }
+ return count($this->_errors);
+ }
+
+ /**
+ * Retrieve all errors since last purge
+ *
+ * @param boolean set in order to empty the error stack
+ * @param string level name, to return only errors of a particular severity
+ * @return array
+ */
+ function getErrors($purge = false, $level = false)
+ {
+ if (!$purge) {
+ if ($level) {
+ if (!isset($this->_errorsByLevel[$level])) {
+ return array();
+ } else {
+ return $this->_errorsByLevel[$level];
+ }
+ } else {
+ return $this->_errors;
+ }
+ }
+ if ($level) {
+ $ret = $this->_errorsByLevel[$level];
+ foreach ($this->_errorsByLevel[$level] as $i => $unused) {
+ // entries are references to the $_errors array
+ $this->_errorsByLevel[$level][$i] = false;
+ }
+ // array_filter removes all entries === false
+ $this->_errors = array_filter($this->_errors);
+ unset($this->_errorsByLevel[$level]);
+ return $ret;
+ }
+ $ret = $this->_errors;
+ $this->_errors = array();
+ $this->_errorsByLevel = array();
+ return $ret;
+ }
+
+ /**
+ * Determine whether there are any errors on a single error stack, or on any error stack
+ *
+ * The optional parameter can be used to test the existence of any errors without the need of
+ * singleton instantiation
+ * @param string|false Package name to check for errors
+ * @param string Level name to check for a particular severity
+ * @return boolean
+ */
+ public static function staticHasErrors($package = false, $level = false)
+ {
+ if ($package) {
+ if (!isset($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package])) {
+ return false;
+ }
+ return $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->hasErrors($level);
+ }
+ foreach ($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] as $package => $obj) {
+ if ($obj->hasErrors($level)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Get a list of all errors since last purge, organized by package
+ * @since PEAR 1.4.0dev BC break! $level is now in the place $merge used to be
+ * @param boolean $purge Set to purge the error stack of existing errors
+ * @param string $level Set to a level name in order to retrieve only errors of a particular level
+ * @param boolean $merge Set to return a flat array, not organized by package
+ * @param array $sortfunc Function used to sort a merged array - default
+ * sorts by time, and should be good for most cases
+ *
+ * @return array
+ */
+ public static function staticGetErrors(
+ $purge = false, $level = false, $merge = false,
+ $sortfunc = array('PEAR_ErrorStack', '_sortErrors')
+ ) {
+ $ret = array();
+ if (!is_callable($sortfunc)) {
+ $sortfunc = array('PEAR_ErrorStack', '_sortErrors');
+ }
+ foreach ($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] as $package => $obj) {
+ $test = $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->getErrors($purge, $level);
+ if ($test) {
+ if ($merge) {
+ $ret = array_merge($ret, $test);
+ } else {
+ $ret[$package] = $test;
+ }
+ }
+ }
+ if ($merge) {
+ usort($ret, $sortfunc);
+ }
+ return $ret;
+ }
+
+ /**
+ * Error sorting function, sorts by time
+ * @access private
+ */
+ public static function _sortErrors($a, $b)
+ {
+ if ($a['time'] == $b['time']) {
+ return 0;
+ }
+ if ($a['time'] < $b['time']) {
+ return 1;
+ }
+ return -1;
+ }
+
+ /**
+ * Standard file/line number/function/class context callback
+ *
+ * This function uses a backtrace generated from {@link debug_backtrace()}
+ * and so will not work at all in PHP < 4.3.0. The frame should
+ * reference the frame that contains the source of the error.
+ * @return array|false either array('file' => file, 'line' => line,
+ * 'function' => function name, 'class' => class name) or
+ * if this doesn't work, then false
+ * @param unused
+ * @param integer backtrace frame.
+ * @param array Results of debug_backtrace()
+ */
+ public static function getFileLine($code, $params, $backtrace = null)
+ {
+ if ($backtrace === null) {
+ return false;
+ }
+ $frame = 0;
+ $functionframe = 1;
+ if (!isset($backtrace[1])) {
+ $functionframe = 0;
+ } else {
+ while (isset($backtrace[$functionframe]['function']) &&
+ $backtrace[$functionframe]['function'] == 'eval' &&
+ isset($backtrace[$functionframe + 1])) {
+ $functionframe++;
+ }
+ }
+ if (isset($backtrace[$frame])) {
+ if (!isset($backtrace[$frame]['file'])) {
+ $frame++;
+ }
+ $funcbacktrace = $backtrace[$functionframe];
+ $filebacktrace = $backtrace[$frame];
+ $ret = array('file' => $filebacktrace['file'],
+ 'line' => $filebacktrace['line']);
+ // rearrange for eval'd code or create function errors
+ if (strpos($filebacktrace['file'], '(') &&
+ preg_match(';^(.*?)\((\d+)\) : (.*?)\\z;', $filebacktrace['file'],
+ $matches)) {
+ $ret['file'] = $matches[1];
+ $ret['line'] = $matches[2] + 0;
+ }
+ if (isset($funcbacktrace['function']) && isset($backtrace[1])) {
+ if ($funcbacktrace['function'] != 'eval') {
+ if ($funcbacktrace['function'] == '__lambda_func') {
+ $ret['function'] = 'create_function() code';
+ } else {
+ $ret['function'] = $funcbacktrace['function'];
+ }
+ }
+ }
+ if (isset($funcbacktrace['class']) && isset($backtrace[1])) {
+ $ret['class'] = $funcbacktrace['class'];
+ }
+ return $ret;
+ }
+ return false;
+ }
+
+ /**
+ * Standard error message generation callback
+ *
+ * This method may also be called by a custom error message generator
+ * to fill in template values from the params array, simply
+ * set the third parameter to the error message template string to use
+ *
+ * The special variable %__msg% is reserved: use it only to specify
+ * where a message passed in by the user should be placed in the template,
+ * like so:
+ *
+ * Error message: %msg% - internal error
+ *
+ * If the message passed like so:
+ *
+ *
+ * $stack->push(ERROR_CODE, 'error', array(), 'server error 500');
+ *
+ *
+ * The returned error message will be "Error message: server error 500 -
+ * internal error"
+ * @param PEAR_ErrorStack
+ * @param array
+ * @param string|false Pre-generated error message template
+ *
+ * @return string
+ */
+ public static function getErrorMessage(&$stack, $err, $template = false)
+ {
+ if ($template) {
+ $mainmsg = $template;
+ } else {
+ $mainmsg = $stack->getErrorMessageTemplate($err['code']);
+ }
+ $mainmsg = str_replace('%__msg%', $err['message'], $mainmsg);
+ if (is_array($err['params']) && count($err['params'])) {
+ foreach ($err['params'] as $name => $val) {
+ if (is_array($val)) {
+ // @ is needed in case $val is a multi-dimensional array
+ $val = @implode(', ', $val);
+ }
+ if (is_object($val)) {
+ if (method_exists($val, '__toString')) {
+ $val = $val->__toString();
+ } else {
+ PEAR_ErrorStack::staticPush('PEAR_ErrorStack', PEAR_ERRORSTACK_ERR_OBJTOSTRING,
+ 'warning', array('obj' => get_class($val)),
+ 'object %obj% passed into getErrorMessage, but has no __toString() method');
+ $val = 'Object';
+ }
+ }
+ $mainmsg = str_replace('%' . $name . '%', $val, $mainmsg);
+ }
+ }
+ return $mainmsg;
+ }
+
+ /**
+ * Standard Error Message Template generator from code
+ * @return string
+ */
+ function getErrorMessageTemplate($code)
+ {
+ if (!isset($this->_errorMsgs[$code])) {
+ return '%__msg%';
+ }
+ return $this->_errorMsgs[$code];
+ }
+
+ /**
+ * Set the Error Message Template array
+ *
+ * The array format must be:
+ * + * array(error code => 'message template',...) + *+ * + * Error message parameters passed into {@link push()} will be used as input + * for the error message. If the template is 'message %foo% was %bar%', and the + * parameters are array('foo' => 'one', 'bar' => 'six'), the error message returned will + * be 'message one was six' + * @return string + */ + function setErrorMessageTemplate($template) + { + $this->_errorMsgs = $template; + } + + + /** + * emulate PEAR::raiseError() + * + * @return PEAR_Error + */ + function raiseError() + { + require_once 'PEAR.php'; + $args = func_get_args(); + return call_user_func_array(array('PEAR', 'raiseError'), $args); + } +} +$stack = &PEAR_ErrorStack::singleton('PEAR_ErrorStack'); +$stack->pushCallback(array('PEAR_ErrorStack', '_handleError')); +?>