\n
\nDebug ($caller[class]$caller[type]$caller[function]() \nin line $caller[line] \nof " . basename($caller['file']) . ")\n
\n";
}
echo Debug::text($val);
if(!Director::is_ajax() && !Director::is_cli()) echo "";
else echo "\n\n";
}
}
/**
* Close out the show dumper
*
* @param mixed $val
*/
static function endshow($val) {
if(!Director::isLive()) {
$caller = Debug::caller();
echo "
\nDebug \n($caller[class]$caller[type]$caller[function]() \nin line $caller[line] \nof " . basename($caller['file']) . ")\n
\n";
echo Debug::text($val);
die();
}
}
/**
* Quick dump of a variable.
*
* @param mixed $val
*/
static function dump($val) {
echo '';
$caller = Debug::caller();
echo "Line $caller[line] of " . basename($caller['file']) . ":\n";
if (is_string($val)) print_r(wordwrap($val, 100));
else print_r($val);
echo '
';
}
/**
* ??
*
* @param unknown_type $val
* @return unknown
*/
static function text($val) {
if(is_object($val)) {
if(method_exists($val, 'hasMethod')) {
$hasDebugMethod = $val->hasMethod('debug');
} else {
$hasDebugMethod = method_exists($val, 'debug');
}
if($hasDebugMethod) {
return $val->debug();
}
}
if(is_array($val)) {
$result = "\n";
foreach($val as $k => $v) {
$result .= "- $k = " . Debug::text($v) . "
\n";
}
$val = $result . "
\n";
} else if (is_object($val)) {
$val = var_export($val, true);
} else {
if(!Director::is_cli() && !Director::is_ajax()) {
$val = "" . htmlentities($val) . "
\n";
}
}
return $val;
}
/**
* Show a debugging message
*/
static function message($message, $showHeader = true) {
if(!Director::isLive()) {
$caller = Debug::caller();
$file = basename($caller['file']);
if(Director::is_cli()) {
if($showHeader) echo "Debug (line $caller[line] of $file):\n ";
echo trim($message) . "\n";
} else {
echo "\n";
if($showHeader) echo "Debug (line $caller[line] of $file):\n ";
echo Convert::raw2xml(trim($message)) . "
\n";
}
}
}
/**
* Log to a standard text file output.
*
* @param $message string to output
*/
static function log($message) {
$file = dirname(__FILE__).'/../../debug.log';
$now = date('r');
$oldcontent = file_get_contents($file);
$content = $oldcontent . "\n\n== $now ==\n$message\n";
file_put_contents($file, $content);
}
/**
* Load error handlers into environment.
* Caution: The error levels default to E_ALL is the site is in dev-mode (set in main.php).
*/
static function loadErrorHandlers() {
set_error_handler('errorHandler', error_reporting());
set_exception_handler('exceptionHandler');
}
/**
* Handle a non-fatal warning error thrown by PHP interpreter.
*
* @param unknown_type $errno
* @param unknown_type $errstr
* @param unknown_type $errfile
* @param unknown_type $errline
* @param unknown_type $errcontext
*/
static function warningHandler($errno, $errstr, $errfile, $errline, $errcontext) {
if(error_reporting() == 0) return;
if(self::$send_warnings_to) self::emailError(self::$send_warnings_to, $errno, $errstr, $errfile, $errline, $errcontext, "Warning");
self::log_error_if_necessary( $errno, $errstr, $errfile, $errline, $errcontext, "Warning");
if(Director::isDev()) {
self::showError($errno, $errstr, $errfile, $errline, $errcontext, "Warning");
}
}
/**
* Handle a fatal error, depending on the mode of the site (ie: Dev, Test, or Live).
*
* Runtime execution dies immediately once the error is generated.
*
* @param unknown_type $errno
* @param unknown_type $errstr
* @param unknown_type $errfile
* @param unknown_type $errline
* @param unknown_type $errcontext
*/
static function fatalHandler($errno, $errstr, $errfile, $errline, $errcontext) {
if(self::$send_errors_to) self::emailError(self::$send_errors_to, $errno, $errstr, $errfile, $errline, $errcontext, "Error");
self::log_error_if_necessary( $errno, $errstr, $errfile, $errline, $errcontext, "Error");
if(Director::isDev() || Director::is_cli()) {
Debug::showError($errno, $errstr, $errfile, $errline, $errcontext, "Error");
} else {
Debug::friendlyError();
}
exit(1);
}
/**
* Render a user-facing error page, using the default HTML error template
* rendered by {@link ErrorPage} if it exists. Doesn't use the standard {@link HTTPResponse} class
* the keep dependencies minimal.
*
* @uses ErrorPage
*
* @param int $statusCode HTTP Status Code (Default: 500)
* @param string $friendlyErrorMessage User-focused error message. Should not contain code pointers or "tech-speak".
* Used in the HTTP Header and ajax responses.
* @param string $friendlyErrorDetail Detailed user-focused message. Is just used if no {@link ErrorPage} is found
* for this specific status code.
* @return string HTML error message for non-ajax requests, plaintext for ajax-request.
*/
static function friendlyError($statusCode = 500, $friendlyErrorMessage = null, $friendlyErrorDetail = null) {
if(!$friendlyErrorMessage) $friendlyErrorMessage = 'There has been an error';
if(!$friendlyErrorDetail) $friendlyErrorDetail = 'The website server has not been able to respond to your request.';
if(!headers_sent()) header($_SERVER['SERVER_PROTOCOL'] . " $statusCode $friendlyErrorMessage");
if(Director::is_ajax()) {
echo $friendlyErrorMessage;
} else {
$errorFilePath = ErrorPage::get_filepath_for_errorcode($statusCode, Translatable::get_current_locale());
if(file_exists($errorFilePath)) {
echo file_get_contents($errorFilePath);
} else {
$renderer = new DebugView();
$renderer->writeHeader();
$renderer->writeInfo("Website Error", $friendlyErrorMessage, $friendlyErrorDetail);
if(Email::getAdminEmail()) {
$mailto = Email::obfuscate(Email::getAdminEmail());
$renderer->writeParagraph('Contact an administrator: ' . $mailto . '');
}
$renderer->writeFooter();
}
}
}
/**
* Create an instance of an appropriate DebugView object.
*/
static function create_debug_view() {
if(Director::is_cli() || Director::is_ajax()) return new CliDebugView();
else return new DebugView();
}
/**
* Render a developer facing error page, showing the stack trace and details
* of the code where the error occured.
*
* @param unknown_type $errno
* @param unknown_type $errstr
* @param unknown_type $errfile
* @param unknown_type $errline
* @param unknown_type $errcontext
*/
static function showError($errno, $errstr, $errfile, $errline, $errcontext, $errtype) {
if(!headers_sent()) {
$errText = "$errtype: \"$errstr\" at line $errline of $errfile";
$errText = str_replace(array("\n","\r")," ",$errText);
if(!headers_sent()) header($_SERVER['SERVER_PROTOCOL'] . " 500 $errText");
// if error is displayed through ajax with CliDebugView, use plaintext output
if(Director::is_ajax()) header('Content-Type: text/plain');
}
// Legacy error handling for customized prototype.js Ajax.Base.responseIsSuccess()
// if(Director::is_ajax()) echo "ERROR:\n";
$reporter = self::create_debug_view();
// Coupling alert: This relies on knowledge of how the director gets its URL, it could be improved.
$httpRequest = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $_REQUEST['url'];
if(isset($_SERVER['REQUEST_METHOD'])) $httpRequest = $_SERVER['REQUEST_METHOD'] . ' ' . $httpRequest;
$reporter->writeHeader($httpRequest);
$reporter->writeError($httpRequest, $errno, $errstr, $errfile, $errline, $errcontext);
$lines = file($errfile);
// Make the array 1-based
array_unshift($lines,"");
unset($lines[0]);
$offset = $errline-10;
$lines = array_slice($lines, $offset, 16, true);
$reporter->writeSourceFragment($lines, $errline);
$reporter->writeTrace(($errcontext ? $errcontext : debug_backtrace()));
$reporter->writeFooter();
exit(1);
}
/**
* Utility method to render a snippet of PHP source code, from selected file
* and highlighting the given line number.
*
* @param string $errfile
* @param int $errline
*/
static function showLines($errfile, $errline) {
$lines = file($errfile);
$offset = $errline-10;
$lines = array_slice($lines, $offset, 16);
echo '';
$offset++;
foreach($lines as $line) {
$line = htmlentities($line);
if ($offset == $errline) {
echo "$offset $line";
} else {
echo "$offset $line";
}
$offset++;
}
echo '';
}
/**
* Dispatch an email notification message when an error is triggered.
* Uses the native PHP mail() function.
*
* @param string $emailAddress
* @param string $errno
* @param string $errstr
* @param string $errfile
* @param int $errline
* @param string $errcontext
* @param string $errorType "warning" or "error"
* @return boolean
*/
static function emailError($emailAddress, $errno, $errstr, $errfile, $errline, $errcontext, $errorType = "Error") {
if(strtolower($errorType) == 'warning') {
$colour = "orange";
} else {
$colour = "red";
}
$data = "\n";
$data .= "
$errorType: $errstr
At line $errline in $errfile\n
\n
\n
\n";
$data .= Debug::backtrace(true);
$data .= "
";
foreach($bt as $item) {
if($plainText) {
$result .= self::full_func_name($item,true) . "\n";
if(isset($item['line']) && isset($item['file'])) $result .= "line $item[line] of " . basename($item['file']) . "\n";
$result .= "\n";
} else {
if ($item['function'] == 'user_error') {
$name = $item['args'][0];
} else {
$name = self::full_func_name($item,true);
}
$result .= "- " . htmlentities($name) . "\n
\n";
$result .= isset($item['line']) ? "Line $item[line] of " : '';
$result .= isset($item['file']) ? htmlentities(basename($item['file'])) : '';
$result .= " \n";
}
}
$result .= "
";
return $result;
}
/**
* Return the full function name. If showArgs is set to true, a string representation of the arguments will be shown
*/
static function full_func_name($item, $showArgs = false) {
$funcName = '';
if(isset($item['class'])) $funcName .= $item['class'];
if(isset($item['type'])) $funcName .= $item['type'];
if(isset($item['function'])) $funcName .= $item['function'];
if($showArgs && isset($item['args'])) {
$args = array();
foreach($item['args'] as $arg) {
if(!is_object($arg) || method_exists($arg, '__toString')) {
$args[] = (string) $arg;
} else {
$args[] = get_class($arg);
}
}
$funcName .= "(" . implode(",", $args) .")";
}
return $funcName;
}
/**
* Check if the user has permissions to run URL debug tools,
* else redirect them to log in.
*/
static function require_developer_login() {
if(Director::isDev()) {
return;
}
if(isset($_SESSION['loggedInAs'])) {
// We have to do some raw SQL here, because this method is called in Object::defineMethods().
// This means we have to be careful about what objects we create, as we don't want Object::defineMethods()
// being called again.
// This basically calls Permission::checkMember($_SESSION['loggedInAs'], 'ADMIN');
$memberID = $_SESSION['loggedInAs'];
$groups = DB::query("SELECT \"GroupID\" from \"Group_Members\" WHERE \"MemberID\" = " . $memberID);
$groupCSV = implode($groups->column(), ',');
$permission = DB::query("
SELECT \"ID\"
FROM \"Permission\"
WHERE (
\"Code\" = 'ADMIN'
AND \"Type\" = " . Permission::GRANT_PERMISSION . "
AND \"GroupID\" IN ($groupCSV)
)
")->value();
if($permission) {
return;
}
}
// This basically does the same as
// Security::permissionFailure(null, "You need to login with developer access to make use of debugging tools.");
// We have to do this because of how early this method is called in execution.
$_SESSION['Security']['Message']['message'] = "You need to login with developer access to make use of debugging tools.";
$_SESSION['Security']['Message']['type'] = 'warning';
$_SESSION['BackURL'] = $_SERVER['REQUEST_URI'];
header($_SERVER['SERVER_PROTOCOL'] . " 302 Found");
header("Location: " . Director::baseURL() . "Security/login");
die();
}
}
/**
* Generic callback, to catch uncaught exceptions when they bubble up to the top of the call chain.
*
* @ignore
* @param Exception $exception
*/
function exceptionHandler($exception) {
$errno = E_USER_ERROR;
$type = get_class($exception);
$message = "Uncaught " . $type . ": " . $exception->getMessage();
$file = $exception->getFile();
$line = $exception->getLine();
$context = $exception->getTrace();
Debug::fatalHandler($errno, $message, $file, $line, $context);
}
/**
* Generic callback to catch standard PHP runtime errors thrown by the interpreter
* or manually triggered with the user_error function.
* Caution: The error levels default to E_ALL is the site is in dev-mode (set in main.php).
*
* @ignore
* @param int $errno
* @param string $errstr
* @param string $errfile
* @param int $errline
*/
function errorHandler($errno, $errstr, $errfile, $errline) {
$bt = debug_backtrace();
switch($errno) {
case E_ERROR:
case E_CORE_ERROR:
case E_USER_ERROR:
Debug::fatalHandler($errno, $errstr, $errfile, $errline, $bt);
break;
case E_NOTICE:
case E_WARNING:
case E_CORE_WARNING:
case E_USER_WARNING:
Debug::warningHandler($errno, $errstr, $errfile, $errline, $bt);
break;
}
}