{:trace}',
'code' => '',
'context' => '',
'links' => array(),
'escapeContext' => true,
),
'html' => array(
'trace' => 'Trace', 'context' => '{:trace}
Context', 'escapeContext' => true, ), 'txt' => array( 'error' => "{:error}: {:code} :: {:description} on line {:line} of {:path}\n{:info}", 'code' => '', 'info' => '' ), 'base' => array( 'traceLine' => '{:reference} - {:path}, line {:line}', 'trace' => "Trace:\n{:trace}\n", 'context' => "Context:\n{:context}\n", ), 'log' => array(), ); /** * Holds current output data when outputFormat is false. * * @var string */ protected $_data = array(); /** * Constructor. * */ public function __construct() { $docRef = ini_get('docref_root'); if (empty($docRef) && function_exists('ini_set')) { ini_set('docref_root', 'http://php.net/'); } if (!defined('E_RECOVERABLE_ERROR')) { define('E_RECOVERABLE_ERROR', 4096); } $e = '{:context}
'; $e .= '{:error} ({:code}): {:description} '; $e .= '[{:path}, line {:line}]'; $e .= ''; $e .= ''; $this->_templates['js']['error'] = $e; $t = ''; $this->_templates['js']['info'] = $t; $links = array(); $link = 'Code'; $links['code'] = $link; $link = 'Context'; $links['context'] = $link; $this->_templates['js']['links'] = $links; $this->_templates['js']['context'] = '
_templates['js']['context'] .= 'style="display: none;">{:context}';
$this->_templates['js']['code'] = '_templates['js']['code'] .= 'style="display: none;">{:code}';
$e = '{:error} ({:code}) : {:description} ';
$e .= '[{:path}, line {:line}]';
$this->_templates['html']['error'] = $e;
$this->_templates['html']['context'] = 'Context '; $this->_templates['html']['context'] .= ''; } /** * Returns a reference to the Debugger singleton object instance. * * @param string $class * @return object */ public static function &getInstance($class = null) { static $instance = array(); if (!empty($class)) { if (!$instance || strtolower($class) != strtolower(get_class($instance[0]))) { $instance[0] = new $class(); } } if (!$instance) { $instance[0] = new Debugger(); } return $instance[0]; } /** * Recursively formats and outputs the contents of the supplied variable. * * * @param mixed $var the variable to dump * @return void * @see Debugger::exportVar() * @link http://book.cakephp.org/2.0/en/development/debugging.html#Debugger::dump */ public static function dump($var) { pr(self::exportVar($var)); } /** * Creates an entry in the log file. The log entry will contain a stack trace from where it was called. * as well as export the variable using exportVar. By default the log is written to the debug log. * * @param mixed $var Variable or content to log * @param integer $level type of log to use. Defaults to LOG_DEBUG * @return void * @link http://book.cakephp.org/2.0/en/development/debugging.html#Debugger::log */ public static function log($var, $level = LOG_DEBUG) { $source = self::trace(array('start' => 1)) . "\n"; CakeLog::write($level, "\n" . $source . self::exportVar($var)); } /** * Overrides PHP's default error handling. * * @param integer $code Code of error * @param string $description Error description * @param string $file File on which error occurred * @param integer $line Line that triggered the error * @param array $context Context * @return boolean true if error was handled * @deprecated This function is superseded by Debugger::outputError() */ public static function showError($code, $description, $file = null, $line = null, $context = null) { $self = Debugger::getInstance(); if (empty($file)) { $file = '[internal]'; } if (empty($line)) { $line = '??'; } $path = self::trimPath($file); $info = compact('code', 'description', 'file', 'line'); if (!in_array($info, $self->errors)) { $self->errors[] = $info; } else { return; } switch ($code) { case E_PARSE: case E_ERROR: case E_CORE_ERROR: case E_COMPILE_ERROR: case E_USER_ERROR: $error = 'Fatal Error'; $level = LOG_ERR; break; case E_WARNING: case E_USER_WARNING: case E_COMPILE_WARNING: case E_RECOVERABLE_ERROR: $error = 'Warning'; $level = LOG_WARNING; break; case E_NOTICE: case E_USER_NOTICE: $error = 'Notice'; $level = LOG_NOTICE; break; case E_DEPRECATED: case E_USER_DEPRECATED: $error = 'Deprecated'; $level = LOG_NOTICE; break; default: return; break; } $data = compact( 'level', 'error', 'code', 'description', 'file', 'path', 'line', 'context' ); echo $self->outputError($data); if ($error == 'Fatal Error') { exit(); } return true; } /** * Outputs a stack trace based on the supplied options. * * ### Options * * - `depth` - The number of stack frames to return. Defaults to 999 * - `format` - The format you want the return. Defaults to the currently selected format. If * format is 'array' or 'points' the return will be an array. * - `args` - Should arguments for functions be shown? If true, the arguments for each method call * will be displayed. * - `start` - The stack frame to start generating a trace from. Defaults to 0 * * @param array $options Format for outputting stack trace * @return mixed Formatted stack trace * @link http://book.cakephp.org/2.0/en/development/debugging.html#Debugger::trace */ public static function trace($options = array()) { $self = Debugger::getInstance(); $defaults = array( 'depth' => 999, 'format' => $self->_outputFormat, 'args' => false, 'start' => 0, 'scope' => null, 'exclude' => array('call_user_func_array', 'trigger_error') ); $options = Hash::merge($defaults, $options); $backtrace = debug_backtrace(); $count = count($backtrace); $back = array(); $_trace = array( 'line' => '??', 'file' => '[internal]', 'class' => null, 'function' => '[main]' ); for ($i = $options['start']; $i < $count && $i < $options['depth']; $i++) { $trace = array_merge(array('file' => '[internal]', 'line' => '??'), $backtrace[$i]); $signature = $reference = '[main]'; if (isset($backtrace[$i + 1])) { $next = array_merge($_trace, $backtrace[$i + 1]); $signature = $reference = $next['function']; if (!empty($next['class'])) { $signature = $next['class'] . '::' . $next['function']; $reference = $signature . '('; if ($options['args'] && isset($next['args'])) { $args = array(); foreach ($next['args'] as $arg) { $args[] = Debugger::exportVar($arg); } $reference .= join(', ', $args); } $reference .= ')'; } } if (in_array($signature, $options['exclude'])) { continue; } if ($options['format'] == 'points' && $trace['file'] != '[internal]') { $back[] = array('file' => $trace['file'], 'line' => $trace['line']); } elseif ($options['format'] == 'array') { $back[] = $trace; } else { if (isset($self->_templates[$options['format']]['traceLine'])) { $tpl = $self->_templates[$options['format']]['traceLine']; } else { $tpl = $self->_templates['base']['traceLine']; } $trace['path'] = self::trimPath($trace['file']); $trace['reference'] = $reference; unset($trace['object'], $trace['args']); $back[] = String::insert($tpl, $trace, array('before' => '{:', 'after' => '}')); } } if ($options['format'] == 'array' || $options['format'] == 'points') { return $back; } return implode("\n", $back); } /** * Shortens file paths by replacing the application base path with 'APP', and the CakePHP core * path with 'CORE'. * * @param string $path Path to shorten * @return string Normalized path */ public static function trimPath($path) { if (!defined('CAKE_CORE_INCLUDE_PATH') || !defined('APP')) { return $path; } if (strpos($path, APP) === 0) { return str_replace(APP, 'APP' . DS, $path); } elseif (strpos($path, CAKE_CORE_INCLUDE_PATH) === 0) { return str_replace(CAKE_CORE_INCLUDE_PATH, 'CORE', $path); } elseif (strpos($path, ROOT) === 0) { return str_replace(ROOT, 'ROOT', $path); } if (strpos($path, CAKE) === 0) { return str_replace($corePath, 'CORE' . DS, $path); } return $path; } /** * Grabs an excerpt from a file and highlights a given line of code. * * Usage: * * `Debugger::excerpt('/path/to/file', 100, 4);` * * The above would return an array of 8 items. The 4th item would be the provided line, * and would be wrapped in ``. All of the lines * are processed with highlight_string() as well, so they have basic PHP syntax highlighting * applied. * * @param string $file Absolute path to a PHP file * @param integer $line Line number to highlight * @param integer $context Number of lines of context to extract above and below $line * @return array Set of lines highlighted * @see http://php.net/highlight_string * @link http://book.cakephp.org/2.0/en/development/debugging.html#Debugger::excerpt */ public static function excerpt($file, $line, $context = 2) { $lines = array(); if (!file_exists($file)) { return array(); } $data = @explode("\n", file_get_contents($file)); if (empty($data) || !isset($data[$line])) { return; } for ($i = $line - ($context + 1); $i < $line + $context; $i++) { if (!isset($data[$i])) { continue; } $string = str_replace(array("\r\n", "\n"), "", self::_highlight($data[$i])); if ($i == $line) { $lines[] = '' . $string . ''; } else { $lines[] = $string; } } return $lines; } /** * Wraps the highlight_string funciton in case the server API does not * implement the function as it is the case of the HipHop interpreter * * @param string $str the string to convert * @return string */ protected static function _highlight($str) { static $supportHighlight = null; if (!$supportHighlight && function_exists('hphp_log')) { $supportHighlight = false; return htmlentities($str); } $supportHighlight = true; return highlight_string($str, true); } /** * Converts a variable to a string for debug output. * * *Note:* The following keys will have their contents * replaced with `*****`: * * - password * - login * - host * - database * - port * - prefix * - schema * * This is done to protect database credentials, which could be accidentally * shown in an error message if CakePHP is deployed in development mode. * * @param string $var Variable to convert * @param integer $depth The depth to output to. Defaults to 3. * @return string Variable as a formatted string * @link http://book.cakephp.org/2.0/en/development/debugging.html#Debugger::exportVar */ public static function exportVar($var, $depth = 3) { return self::_export($var, $depth, 0); } /** * Protected export function used to keep track of indentation and recursion. * * @param mixed $var The variable to dump. * @param integer $depth The remaining depth. * @param integer $indent The current indentation level. * @return string The dumped variable. */ protected static function _export($var, $depth, $indent) { switch (self::getType($var)) { case 'boolean': return ($var) ? 'true' : 'false'; break; case 'integer': return '(int) ' . $var; case 'float': return '(float) ' . $var; break; case 'string': if (trim($var) == '') { return "''"; } return "'" . $var . "'"; break; case 'array': return self::_array($var, $depth - 1, $indent + 1); break; case 'resource': return strtolower(gettype($var)); break; case 'null': return 'null'; default: return self::_object($var, $depth - 1, $indent + 1); break; } } /** * Export an array type object. Filters out keys used in datasource configuration. * * The following keys are replaced with ***'s * * - password * - login * - host * - database * - port * - prefix * - schema * * @param array $var The array to export. * @param integer $depth The current depth, used for recursion tracking. * @param integer $indent The current indentation level. * @return string Exported array. */ protected static function _array(array $var, $depth, $indent) { $secrets = array( 'password' => '*****', 'login' => '*****', 'host' => '*****', 'database' => '*****', 'port' => '*****', 'prefix' => '*****', 'schema' => '*****' ); $replace = array_intersect_key($secrets, $var); $var = $replace + $var; $out = "array("; $n = $break = $end = null; if (!empty($var)) { $n = "\n"; $break = "\n" . str_repeat("\t", $indent); $end = "\n" . str_repeat("\t", $indent - 1); } $vars = array(); if ($depth >= 0) { foreach ($var as $key => $val) { $vars[] = $break . self::exportVar($key) . ' => ' . self::_export($val, $depth, $indent); } } else { $vars[] = $break . '[maximum depth reached]'; } return $out . implode(',', $vars) . $end . ')'; } /** * Handles object to string conversion. * * @param string $var Object to convert * @param integer $depth The current depth, used for tracking recursion. * @param integer $indent The current indentation level. * @return string * @see Debugger::exportVar() */ protected static function _object($var, $depth, $indent) { $out = ''; $props = array(); $className = get_class($var); $out .= 'object(' . $className . ') {'; if ($depth > 0) { $end = "\n" . str_repeat("\t", $indent - 1); $break = "\n" . str_repeat("\t", $indent); $objectVars = get_object_vars($var); foreach ($objectVars as $key => $value) { $value = self::_export($value, $depth - 1, $indent); $props[] = "$key => " . $value; } $out .= $break . implode($break, $props) . $end; } $out .= '}'; return $out; } /** * Get/Set the output format for Debugger error rendering. * * @param string $format The format you want errors to be output as. * Leave null to get the current format. * @return mixed Returns null when setting. Returns the current format when getting. * @throws CakeException when choosing a format that doesn't exist. */ public static function outputAs($format = null) { $self = Debugger::getInstance(); if ($format === null) { return $self->_outputFormat; } if ($format !== false && !isset($self->_templates[$format])) { throw new CakeException(__d('cake_dev', 'Invalid Debugger output format.')); } $self->_outputFormat = $format; } /** * Add an output format or update a format in Debugger. * * `Debugger::addFormat('custom', $data);` * * Where $data is an array of strings that use String::insert() variable * replacement. The template vars should be in a `{:id}` style. * An error formatter can have the following keys: * * - 'error' - Used for the container for the error message. Gets the following template * variables: `id`, `error`, `code`, `description`, `path`, `line`, `links`, `info` * - 'info' - A combination of `code`, `context` and `trace`. Will be set with * the contents of the other template keys. * - 'trace' - The container for a stack trace. Gets the following template * variables: `trace` * - 'context' - The container element for the context variables. * Gets the following templates: `id`, `context` * - 'links' - An array of HTML links that are used for creating links to other resources. * Typically this is used to create javascript links to open other sections. * Link keys, are: `code`, `context`, `help`. See the js output format for an * example. * - 'traceLine' - Used for creating lines in the stacktrace. Gets the following * template variables: `reference`, `path`, `line` * * Alternatively if you want to use a custom callback to do all the formatting, you can use * the callback key, and provide a callable: * * `Debugger::addFormat('custom', array('callback' => array($foo, 'outputError'));` * * The callback can expect two parameters. The first is an array of all * the error data. The second contains the formatted strings generated using * the other template strings. Keys like `info`, `links`, `code`, `context` and `trace` * will be present depending on the other templates in the format type. * * @param string $format Format to use, including 'js' for JavaScript-enhanced HTML, 'html' for * straight HTML output, or 'txt' for unformatted text. * @param array $strings Template strings, or a callback to be used for the output format. * @return The resulting format string set. */ public static function addFormat($format, array $strings) { $self = Debugger::getInstance(); if (isset($self->_templates[$format])) { if (isset($strings['links'])) { $self->_templates[$format]['links'] = array_merge( $self->_templates[$format]['links'], $strings['links'] ); unset($strings['links']); } $self->_templates[$format] = array_merge($self->_templates[$format], $strings); } else { $self->_templates[$format] = $strings; } return $self->_templates[$format]; } /** * Switches output format, updates format strings. * Can be used to switch the active output format: * * @param string $format Format to use, including 'js' for JavaScript-enhanced HTML, 'html' for * straight HTML output, or 'txt' for unformatted text. * @param array $strings Template strings to be used for the output format. * @return string * @deprecated Use Debugger::outputAs() and Debugger::addFormat(). Will be removed * in 3.0 */ public function output($format = null, $strings = array()) { $self = Debugger::getInstance(); $data = null; if (is_null($format)) { return Debugger::outputAs(); } if (!empty($strings)) { return Debugger::addFormat($format, $strings); } if ($format === true && !empty($self->_data)) { $data = $self->_data; $self->_data = array(); $format = false; } Debugger::outputAs($format); return $data; } /** * Takes a processed array of data from an error and displays it in the chosen format. * * @param string $data * @return void */ public function outputError($data) { $defaults = array( 'level' => 0, 'error' => 0, 'code' => 0, 'description' => '', 'file' => '', 'line' => 0, 'context' => array(), 'start' => 2, ); $data += $defaults; $files = $this->trace(array('start' => $data['start'], 'format' => 'points')); $code = ''; if (isset($files[1]['file'])) { $code = $this->excerpt($files[1]['file'], $files[1]['line'] - 1, 1); } $trace = $this->trace(array('start' => $data['start'], 'depth' => '20')); $insertOpts = array('before' => '{:', 'after' => '}'); $context = array(); $links = array(); $info = ''; foreach ((array)$data['context'] as $var => $value) { $context[] = "\${$var} = " . $this->exportVar($value, 1); } switch ($this->_outputFormat) { case false: $this->_data[] = compact('context', 'trace') + $data; return; case 'log': $this->log(compact('context', 'trace') + $data); return; } $data['trace'] = $trace; $data['id'] = 'cakeErr' . uniqid(); $tpl = array_merge($this->_templates['base'], $this->_templates[$this->_outputFormat]); if (isset($tpl['links'])) { foreach ($tpl['links'] as $key => $val) { $links[$key] = String::insert($val, $data, $insertOpts); } } if (!empty($tpl['escapeContext'])) { $context = h($context); } $infoData = compact('code', 'context', 'trace'); foreach ($infoData as $key => $value) { if (empty($value) || !isset($tpl[$key])) { continue; } if (is_array($value)) { $value = join("\n", $value); } $info .= String::insert($tpl[$key], array($key => $value) + $data, $insertOpts); } $links = join(' ', $links); if (isset($tpl['callback']) && is_callable($tpl['callback'])) { return call_user_func($tpl['callback'], $data, compact('links', 'info')); } echo String::insert($tpl['error'], compact('links', 'info') + $data, $insertOpts); } /** * Get the type of the given variable. Will return the classname * for objects. * * @param mixed $var The variable to get the type of * @return string The type of variable. */ public static function getType($var) { if (is_object($var)) { return get_class($var); } if (is_null($var)) { return 'null'; } if (is_string($var)) { return 'string'; } if (is_array($var)) { return 'array'; } if (is_int($var)) { return 'integer'; } if (is_bool($var)) { return 'boolean'; } if (is_float($var)) { return 'float'; } if (is_resource($var)) { return 'resource'; } return 'unknown'; } /** * Verifies that the application's salt and cipher seed value has been changed from the default value. * * @return void */ public static function checkSecurityKeys() { if (Configure::read('Security.salt') == 'DYhG93b0qyJfIxfs2guVoUubWwvniR2G0FgaC9mi') { trigger_error(__d('cake_dev', 'Please change the value of \'Security.salt\' in app/Config/core.php to a salt value specific to your application'), E_USER_NOTICE); } if (Configure::read('Security.cipherSeed') === '76859309657453542496749683645') { trigger_error(__d('cake_dev', 'Please change the value of \'Security.cipherSeed\' in app/Config/core.php to a numeric (digits only) seed value specific to your application'), E_USER_NOTICE); } } }{:context}