mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
a8c9fffed4
Until now debug.log files were loaded into memory, concatenated and then re-written to disk. This is an intensive operation on a large file. I've added the `FILE_APPEND` flag to append to this file instead.
591 lines
17 KiB
PHP
591 lines
17 KiB
PHP
<?php
|
|
/**
|
|
* Supports debugging and core error handling.
|
|
*
|
|
* Attaches custom methods to the default error handling hooks
|
|
* in PHP. Currently, two levels of error are supported:
|
|
*
|
|
* - Notice
|
|
* - Warning
|
|
* - Error
|
|
*
|
|
* Uncaught exceptions are currently passed to the debug
|
|
* reporter as standard PHP errors.
|
|
*
|
|
* Errors handled by this class are passed along to {@link SS_Log}.
|
|
* For configuration information, see the {@link SS_Log}
|
|
* class documentation.
|
|
*
|
|
* @todo add support for user defined config: Debug::die_on_notice(true | false)
|
|
* @todo better way of figuring out the error context to display in highlighted source
|
|
*
|
|
* @package framework
|
|
* @subpackage dev
|
|
*/
|
|
class Debug {
|
|
|
|
/**
|
|
* @config
|
|
* @var string Email address to send error notifications
|
|
*/
|
|
private static $send_errors_to;
|
|
|
|
/**
|
|
* @config
|
|
* @var string Email address to send warning notifications
|
|
*/
|
|
private static $send_warnings_to;
|
|
|
|
/**
|
|
* @config
|
|
* @var String indicating the file where errors are logged.
|
|
* Filename is relative to the site root.
|
|
* The named file will have a terse log sent to it, and the full log (an
|
|
* encoded file containing backtraces and things) will go to a file of a similar
|
|
* name, but with the suffix ".full" added.
|
|
*/
|
|
private static $log_errors_to = null;
|
|
|
|
/**
|
|
* @config
|
|
* @var string The header of the message shown to users on the live site when a fatal error occurs.
|
|
*/
|
|
private static $friendly_error_header = 'There has been an error';
|
|
|
|
/**
|
|
* @config
|
|
* @var string The body of the message shown to users on the live site when a fatal error occurs.
|
|
*/
|
|
private static $friendly_error_detail = 'The website server has not been able to respond to your request.';
|
|
|
|
/**
|
|
* Show the contents of val in a debug-friendly way.
|
|
* Debug::show() is intended to be equivalent to dprintr()
|
|
*/
|
|
public static function show($val, $showHeader = true) {
|
|
if(!Director::isLive()) {
|
|
if($showHeader) {
|
|
$caller = Debug::caller();
|
|
if(Director::is_ajax() || Director::is_cli())
|
|
echo "Debug ($caller[class]$caller[type]$caller[function]() in " . basename($caller['file'])
|
|
. ":$caller[line])\n";
|
|
else
|
|
echo "<div style=\"background-color: white; text-align: left;\">\n<hr>\n"
|
|
. "<h3>Debug <span style=\"font-size: 65%\">($caller[class]$caller[type]$caller[function]()"
|
|
. " \nin " . basename($caller['file']) . ":$caller[line])</span>\n</h3>\n";
|
|
}
|
|
|
|
echo Debug::text($val);
|
|
|
|
if(!Director::is_ajax() && !Director::is_cli()) echo "</div>";
|
|
else echo "\n\n";
|
|
}
|
|
|
|
}
|
|
|
|
public static function caller() {
|
|
$bt = debug_backtrace();
|
|
$caller = $bt[2];
|
|
$caller['line'] = $bt[1]['line'];
|
|
$caller['file'] = $bt[1]['file'];
|
|
if(!isset($caller['class'])) $caller['class'] = '';
|
|
if(!isset($caller['type'])) $caller['type'] = '';
|
|
return $caller;
|
|
}
|
|
|
|
/**
|
|
* Close out the show dumper
|
|
*
|
|
* @param mixed $val
|
|
*/
|
|
public static function endshow($val) {
|
|
if(!Director::isLive()) {
|
|
$caller = Debug::caller();
|
|
echo "<hr>\n<h3>Debug \n<span style=\"font-size: 65%\">($caller[class]$caller[type]$caller[function]()"
|
|
. " \nin " . basename($caller['file']) . ":$caller[line])</span>\n</h3>\n";
|
|
echo Debug::text($val);
|
|
die();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Quick dump of a variable.
|
|
*
|
|
* @param mixed $val
|
|
*/
|
|
public static function dump($val) {
|
|
echo '<pre style="background-color:#ccc;padding:5px;font-size:14px;line-height:18px;">';
|
|
$caller = Debug::caller();
|
|
echo "<span style=\"font-size: 12px;color:#666;\">" . basename($caller['file']) . ":$caller[line] - </span>\n";
|
|
if (is_string($val)) print_r(wordwrap($val, 100));
|
|
else print_r($val);
|
|
echo '</pre>';
|
|
}
|
|
|
|
/**
|
|
* ??
|
|
*
|
|
* @param unknown_type $val
|
|
* @return unknown
|
|
*/
|
|
public static function text($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)) {
|
|
$result = "<ul>\n";
|
|
foreach($val as $k => $v) {
|
|
$result .= "<li>$k = " . Debug::text($v) . "</li>\n";
|
|
}
|
|
$val = $result . "</ul>\n";
|
|
|
|
} else if (is_object($val)) {
|
|
$val = var_export($val, true);
|
|
} else if (is_bool($val)) {
|
|
$val = $val ? 'true' : 'false';
|
|
$val = '(bool) ' . $val;
|
|
} else {
|
|
if(!Director::is_cli() && !Director::is_ajax()) {
|
|
$val = "<pre style=\"font-family: Courier new\">" . htmlentities($val, ENT_COMPAT, 'UTF-8')
|
|
. "</pre>\n";
|
|
}
|
|
}
|
|
|
|
return $val;
|
|
}
|
|
|
|
/**
|
|
* Show a debugging message
|
|
*/
|
|
public static function message($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 $message . "\n";
|
|
} else {
|
|
echo "<p class=\"message warning\">\n";
|
|
if($showHeader) echo "<b>Debug (line $caller[line] of $file):</b>\n ";
|
|
echo Convert::raw2xml($message) . "</p>\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
// Keep track of how many headers have been sent
|
|
private static $headerCount = 0;
|
|
|
|
/**
|
|
* Send a debug message in an HTTP header. Only works if you are
|
|
* on Dev, and headers have not yet been sent.
|
|
*
|
|
* @param string $msg
|
|
* @param string $prefix (optional)
|
|
* @return void
|
|
*/
|
|
public static function header($msg, $prefix = null) {
|
|
if (Director::isDev() && !headers_sent()) {
|
|
self::$headerCount++;
|
|
header('SS-'.self::$headerCount.($prefix?'-'.$prefix:'').': '.$msg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Log to a standard text file output.
|
|
*
|
|
* @param $message string to output
|
|
*/
|
|
public static function log($message) {
|
|
if (defined('BASE_PATH')) {
|
|
$path = BASE_PATH;
|
|
}
|
|
else {
|
|
$path = dirname(__FILE__) . '/../..';
|
|
}
|
|
$file = $path . '/debug.log';
|
|
$now = date('r');
|
|
$content = "\n\n== $now ==\n$message\n";
|
|
file_put_contents($file, $content, FILE_APPEND);
|
|
}
|
|
|
|
/**
|
|
* Load error handlers into environment.
|
|
* Caution: The error levels default to E_ALL is the site is in dev-mode (set in main.php).
|
|
*/
|
|
public static function loadErrorHandlers() {
|
|
set_error_handler('errorHandler', error_reporting());
|
|
set_exception_handler('exceptionHandler');
|
|
}
|
|
|
|
public static function noticeHandler($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
if(error_reporting() == 0) return;
|
|
ini_set('display_errors', 0);
|
|
|
|
// Send out the error details to the logger for writing
|
|
SS_Log::log(
|
|
array(
|
|
'errno' => $errno,
|
|
'errstr' => $errstr,
|
|
'errfile' => $errfile,
|
|
'errline' => $errline,
|
|
'errcontext' => $errcontext
|
|
),
|
|
SS_Log::NOTICE
|
|
);
|
|
|
|
if(Director::isDev()) {
|
|
return self::showError($errno, $errstr, $errfile, $errline, $errcontext, "Notice");
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 $errcontext
|
|
*/
|
|
public static function warningHandler($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
if(error_reporting() == 0) return;
|
|
ini_set('display_errors', 0);
|
|
|
|
if(Config::inst()->get('Debug', 'send_warnings_to')) {
|
|
return self::emailError(
|
|
Config::inst()->get('Debug', 'send_warnings_to'),
|
|
$errno,
|
|
$errstr,
|
|
$errfile,
|
|
$errline,
|
|
$errcontext,
|
|
"Warning"
|
|
);
|
|
}
|
|
|
|
// Send out the error details to the logger for writing
|
|
SS_Log::log(
|
|
array(
|
|
'errno' => $errno,
|
|
'errstr' => $errstr,
|
|
'errfile' => $errfile,
|
|
'errline' => $errline,
|
|
'errcontext' => $errcontext
|
|
),
|
|
SS_Log::WARN
|
|
);
|
|
|
|
if(Config::inst()->get('Debug', 'log_errors_to')) {
|
|
self::log_error_if_necessary( $errno, $errstr, $errfile, $errline, $errcontext, "Warning");
|
|
}
|
|
|
|
if(Director::isDev()) {
|
|
return self::showError($errno, $errstr, $errfile, $errline, $errcontext, "Warning");
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 $errcontext
|
|
*/
|
|
public static function fatalHandler($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
ini_set('display_errors', 0);
|
|
|
|
if(Config::inst()->get('Debug', 'send_errors_to')) {
|
|
self::emailError(
|
|
Config::inst()->get('Debug', 'send_errors_to'), $errno,
|
|
$errstr, $errfile, $errline, $errcontext, "Error"
|
|
);
|
|
}
|
|
|
|
// Send out the error details to the logger for writing
|
|
SS_Log::log(
|
|
array(
|
|
'errno' => $errno,
|
|
'errstr' => $errstr,
|
|
'errfile' => $errfile,
|
|
'errline' => $errline,
|
|
'errcontext' => $errcontext
|
|
),
|
|
SS_Log::ERR
|
|
);
|
|
|
|
if(Config::inst()->get('Debug', 'log_errors_to')) {
|
|
self::log_error_if_necessary( $errno, $errstr, $errfile, $errline, $errcontext, "Error");
|
|
}
|
|
|
|
if(Director::isDev() || Director::is_cli()) {
|
|
return self::showError($errno, $errstr, $errfile, $errline, $errcontext, "Error");
|
|
} else {
|
|
return self::friendlyError();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 SS_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 $friendlyErrorDetail Detailed user-focused message. Is just used if no {@link ErrorPage} is found
|
|
* for this specific status code.
|
|
* @return string HTML error message for non-ajax requests, plaintext for ajax-request.
|
|
*/
|
|
public static function friendlyError($statusCode=500, $friendlyErrorMessage=null, $friendlyErrorDetail=null) {
|
|
if(!$friendlyErrorMessage) {
|
|
$friendlyErrorMessage = Config::inst()->get('Debug', 'friendly_error_header');
|
|
}
|
|
|
|
if(!$friendlyErrorDetail) {
|
|
$friendlyErrorDetail = Config::inst()->get('Debug', 'friendly_error_detail');
|
|
}
|
|
|
|
if(!headers_sent()) {
|
|
$currController = Controller::has_curr() ? Controller::curr() : null;
|
|
// Ensure the error message complies with the HTTP 1.1 spec
|
|
$msg = strip_tags(str_replace(array("\n", "\r"), '', $friendlyErrorMessage));
|
|
if($currController) {
|
|
$response = $currController->getResponse();
|
|
$response->setStatusCode($statusCode, $msg);
|
|
} else {
|
|
header($_SERVER['SERVER_PROTOCOL'] . " $statusCode $msg");
|
|
}
|
|
}
|
|
|
|
if(Director::is_ajax()) {
|
|
echo $friendlyErrorMessage;
|
|
} else {
|
|
if(class_exists('ErrorPage')){
|
|
$errorFilePath = ErrorPage::get_filepath_for_errorcode(
|
|
$statusCode,
|
|
class_exists('Translatable') ? Translatable::get_current_locale() : null
|
|
);
|
|
if(file_exists($errorFilePath)) {
|
|
$content = file_get_contents(ASSETS_PATH . "/error-$statusCode.html");
|
|
// $BaseURL is left dynamic in error-###.html, so that multi-domain sites don't get broken
|
|
echo str_replace('$BaseURL', Director::absoluteBaseURL(), $content);
|
|
}
|
|
} else {
|
|
$renderer = new DebugView();
|
|
$renderer->writeHeader();
|
|
$renderer->writeInfo("Website Error", $friendlyErrorMessage, $friendlyErrorDetail);
|
|
|
|
if(Email::config()->admin_email) {
|
|
$mailto = Email::obfuscate(Email::config()->admin_email);
|
|
$renderer->writeParagraph('Contact an administrator: ' . $mailto . '');
|
|
}
|
|
|
|
$renderer->writeFooter();
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Create an instance of an appropriate DebugView object.
|
|
*/
|
|
public 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 $errcontext
|
|
*/
|
|
public static function showError($errno, $errstr, $errfile, $errline, $errcontext, $errtype) {
|
|
if(!headers_sent()) {
|
|
$errText = "$errtype 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');
|
|
}
|
|
}
|
|
|
|
$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, $errcontext);
|
|
|
|
if(file_exists($errfile)) {
|
|
$lines = file($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();
|
|
}
|
|
|
|
/**
|
|
* Utility method to render a snippet of PHP source code, from selected file
|
|
* and highlighting the given line number.
|
|
*
|
|
* @param string $errfile
|
|
* @param int $errline
|
|
*/
|
|
public static function showLines($errfile, $errline) {
|
|
$lines = file($errfile);
|
|
$offset = $errline-10;
|
|
$lines = array_slice($lines, $offset, 16);
|
|
echo '<pre>';
|
|
$offset++;
|
|
foreach($lines as $line) {
|
|
$line = htmlentities($line, ENT_COMPAT, 'UTF-8');
|
|
if ($offset == $errline) {
|
|
echo "<span>$offset</span> <span class=\"error\">$line</span>";
|
|
} else {
|
|
echo "<span>$offset</span> $line";
|
|
}
|
|
$offset++;
|
|
}
|
|
echo '</pre>';
|
|
}
|
|
|
|
/**
|
|
* Check if the user has permissions to run URL debug tools,
|
|
* else redirect them to log in.
|
|
*/
|
|
public static function require_developer_login() {
|
|
if(Director::isDev()) {
|
|
return;
|
|
}
|
|
if(isset($_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_url());
|
|
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 = $exception->getTrace();
|
|
return Debug::fatalHandler($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, $errline) {
|
|
switch($errno) {
|
|
case E_ERROR:
|
|
case E_CORE_ERROR:
|
|
case E_USER_ERROR:
|
|
return Debug::fatalHandler($errno, $errstr, $errfile, $errline, debug_backtrace());
|
|
|
|
case E_WARNING:
|
|
case E_CORE_WARNING:
|
|
case E_USER_WARNING:
|
|
return Debug::warningHandler($errno, $errstr, $errfile, $errline, debug_backtrace());
|
|
|
|
case E_NOTICE:
|
|
case E_USER_NOTICE:
|
|
case E_DEPRECATED:
|
|
case E_USER_DEPRECATED:
|
|
case E_STRICT:
|
|
return Debug::noticeHandler($errno, $errstr, $errfile, $errline, debug_backtrace());
|
|
}
|
|
}
|