mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-09-01 07:17:48 +02:00
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@51130 467b73ca-7a2a-4603-9d3b-597d59a354a9
486 lines
14 KiB
PHP
486 lines
14 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @package sapphire
|
|
* @subpackage core
|
|
*/
|
|
|
|
/**
|
|
* Supports debugging and core error handling.
|
|
*
|
|
* Attaches custom methods to the default
|
|
* error handling hooks in PHP. Currently, three levels
|
|
* of error are supported:
|
|
*
|
|
* - Notice
|
|
* - Warning
|
|
* - Error
|
|
*
|
|
* Notice level errors are currently unsupported, and will be passed
|
|
* directly to the normal PHP error output.
|
|
*
|
|
* Uncaught exceptions are currently passed to the debug
|
|
* reporter as standard PHP errors.
|
|
*
|
|
* There are four different types of error handler supported by the
|
|
* Debug class:
|
|
*
|
|
* - Friendly
|
|
* - Fatal
|
|
* - Logger
|
|
* - Emailer
|
|
*
|
|
* Currently, only Friendly, Fatal, and Emailer handlers are implemented.
|
|
*
|
|
* @todo port header/footer wrapping code to external reporter class
|
|
* @todo add support for user defined config: Debug::die_on_notice(true | false)
|
|
* @todo add appropriate handling for E_NOTICE and E_USER_NOTICE levels
|
|
* @todo better way of figuring out the error context to display in highlighted source
|
|
* @todo implement error logger handler
|
|
*
|
|
* @package sapphire
|
|
* @subpackage core
|
|
*/
|
|
class Debug {
|
|
|
|
/**
|
|
* @var $custom_smtp_server string Custom mailserver for sending mails.
|
|
*/
|
|
protected static $custom_smtp_server = '';
|
|
|
|
/**
|
|
* @var $send_errors_to string Email address to send error notifications
|
|
*/
|
|
protected static $send_errors_to;
|
|
|
|
/**
|
|
* @var $send_warnings_to string Email address to send warning notifications
|
|
*/
|
|
protected static $send_warnings_to;
|
|
|
|
/**
|
|
* Show the contents of val in a debug-friendly way.
|
|
* Debug::show() is intended to be equivalent to dprintr()
|
|
*/
|
|
static function show($val, $showHeader = true) {
|
|
if(!Director::isLive()) {
|
|
if($showHeader) {
|
|
$caller = Debug::caller();
|
|
if(Director::is_ajax())
|
|
echo "Debug ($caller[class]$caller[type]$caller[function]() in line $caller[line] of " . basename($caller['file']) . ")\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]() \n<span style=\"font-weight:normal\">in line</span> $caller[line] \n<span style=\"font-weight:normal\">of</span> " . basename($caller['file']) . ")</span>\n</h3>\n";
|
|
}
|
|
|
|
echo Debug::text($val);
|
|
|
|
if(!Director::is_ajax()) echo "</div>";
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Emails the contents of the output buffer
|
|
*/
|
|
static function mailBuffer( $email, $subject ) {
|
|
mail( $email, $subject, ob_get_contents() );
|
|
ob_end_clean();
|
|
}
|
|
|
|
static function endshow($val) {
|
|
if(!Director::isLive()) {
|
|
$caller = Debug::caller();
|
|
echo "<hr>\n<h3>Debug \n<span style=\"font-size: 65%\">($caller[class]$caller[type]$caller[function]() \n<span style=\"font-weight:normal\">in line</span> $caller[line] \n<span style=\"font-weight:normal\">of</span> " . basename($caller['file']) . ")</span>\n</h3>\n";
|
|
echo Debug::text($val);
|
|
die();
|
|
}
|
|
}
|
|
|
|
static function dump($val) {
|
|
echo '<pre style="background-color:#ccc;padding:5px;">';
|
|
print_r($val);
|
|
echo '</pre>';
|
|
}
|
|
|
|
static function text($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(true || !Director::is_ajax()) {
|
|
$val = "<pre style=\"font-family: Courier new\">" . htmlentities($val) . "</pre>\n";
|
|
}
|
|
}
|
|
|
|
return $val;
|
|
}
|
|
|
|
/**
|
|
* Show a debugging message
|
|
*/
|
|
static function message($message, $showHeader = true) {
|
|
if(!Director::isLive()) {
|
|
$caller = Debug::caller();
|
|
$file = basename($caller['file']);
|
|
echo "<p style=\"background-color: white; color: black; width: 95%; margin: 0.5em; padding: 0.3em; border: 1px #CCC solid\">\n";
|
|
if($showHeader) echo "<b>Debug (line $caller[line] of $file):</b>\n ";
|
|
echo Convert::raw2xml(trim($message)) . "</p>\n";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Load an error handler
|
|
*
|
|
* @todo why does this delegate to loadFatalErrorHandler?
|
|
*/
|
|
static function loadErrorHandlers() {
|
|
Debug::loadFatalErrorHandler();
|
|
}
|
|
|
|
/**
|
|
* @todo can this be moved into loadErrorHandlers?
|
|
*/
|
|
static function loadFatalErrorHandler() {
|
|
//set_error_handler('errorHandler', (E_ALL ^ E_NOTICE) ^ E_USER_NOTICE);
|
|
set_error_handler('errorHandler', E_ALL);
|
|
set_exception_handler('exceptionHandler');
|
|
}
|
|
|
|
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, $errcontext, "Warning");
|
|
|
|
if(Director::isDev()) {
|
|
self::showError($errno, $errstr, $errfile, $errline, $errcontext);
|
|
}
|
|
}
|
|
|
|
static function fatalHandler($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
if(self::$send_errors_to) self::emailError(self::$send_errors_to, $errno, $errstr, $errfile, $errline, $errcontext, "Error");
|
|
|
|
if(Director::isDev()) {
|
|
Debug::showError($errno, $errstr, $errfile, $errline, $errcontext);
|
|
|
|
} else {
|
|
Debug::friendlyError($errno, $errstr, $errfile, $errline, $errcontext);
|
|
}
|
|
die();
|
|
}
|
|
static function friendlyError($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
header("HTTP/1.0 500 Internal server error");
|
|
|
|
if(Director::is_ajax()) {
|
|
echo "There has been an error";
|
|
|
|
} else {
|
|
if(file_exists('../assets/error-500.html')) {
|
|
include('../assets/error-500.html');
|
|
} else {
|
|
echo "<h1>Error</h1><p>The website server has not been able to respond to your request.</p>\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
static function showError($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
if(!headers_sent()) header("HTTP/1.0 500 Internal server error");
|
|
if(Director::is_ajax()) {
|
|
echo "ERROR:Error $errno: $errstr\n At l$errline in $errfile\n";
|
|
Debug::backtrace();
|
|
} else {
|
|
echo '<!DOCTYPE html><html><head><title>'. $_SERVER['REQUEST_METHOD'] . ' ' .$_SERVER['REQUEST_URI'] .'</title>';
|
|
echo '<style type="text/css">';
|
|
echo 'body { background-color:#eee; margin:0; padding:0; font-family:Helvetica,Arial,sans-serif; }';
|
|
echo '.info { border-bottom:1px dotted #333; background-color:#ccdef3; margin:0; padding:6px 12px; }';
|
|
echo '.info h1 { margin:0; padding:0; color:#333; letter-spacing:-2px; }';
|
|
echo '.header { margin:0; border-bottom:6px solid #ccdef3; height:23px; background-color:#666673; padding:4px 0 2px 6px; background-image:url('.Director::absoluteBaseURL().'cms/images/mainmenu/top-bg.gif); }';
|
|
echo '.trace { padding:6px 12px; }';
|
|
echo '.trace li { font-size:14px; margin:6px 0; }';
|
|
echo 'pre { margin-left:18px; }';
|
|
echo 'pre span { color:#999;}';
|
|
echo 'pre .error { color:#f00; }';
|
|
echo '</style></head>';
|
|
echo '<body>';
|
|
echo '<div class="header"><img src="'. Director::absoluteBaseURL() .'cms/images/mainmenu/logo.gif" width="26" height="23"></div>';
|
|
echo '<div class="info">';
|
|
echo "<h1>" . strip_tags($errstr) . "</h1>";
|
|
echo "<h3>{$_SERVER['REQUEST_METHOD']} {$_SERVER['REQUEST_URI']}</h3>";
|
|
echo "<p>Line <strong>$errline</strong> in <strong>$errfile</strong></p>";
|
|
echo '</div>';
|
|
echo '<div class="trace"><h3>Source</h3>';
|
|
$lines = file($errfile);
|
|
$offset = $errline-10;
|
|
$lines = array_slice($lines, $offset, 16);
|
|
echo '<pre>';
|
|
$offset++;
|
|
foreach($lines as $line) {
|
|
$line = htmlentities($line);
|
|
if ($offset == $errline) {
|
|
echo "<span>$offset</span> <span class=\"error\">$line</span>";
|
|
} else {
|
|
echo "<span>$offset</span> $line";
|
|
}
|
|
$offset++;
|
|
}
|
|
echo '</pre><h3>Trace</h3>';
|
|
Debug::backtrace();
|
|
echo '</div>';
|
|
echo "</div>\n";
|
|
echo "</body></html>";
|
|
die();
|
|
}
|
|
}
|
|
|
|
static function emailError($emailAddress, $errno, $errstr, $errfile, $errline, $errcontext, $errorType = "Error") {
|
|
if(strtolower($errorType) == 'warning') {
|
|
$colour = "orange";
|
|
} else {
|
|
$colour = "red";
|
|
}
|
|
|
|
$data = "<div style=\"border: 5px $colour solid\">\n";
|
|
$data .= "<p style=\"color: white; background-color: $colour; margin: 0\">$errorType: $errstr<br /> At line $errline in $errfile\n<br />\n<br />\n</p>\n";
|
|
|
|
$data .= Debug::backtrace(true);
|
|
$data .= "</div>\n";
|
|
|
|
// override smtp-server if needed
|
|
if(self::$custom_smtp_server) {
|
|
ini_set("SMTP", self::$custom_smtp_server);
|
|
}
|
|
|
|
$relfile = Director::makeRelative($errfile);
|
|
if($relfile[0] == '/') $relfile = substr($relfile,1);
|
|
mail($emailAddress, "$errorType at $relfile line $errline (http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI])", $data, "Content-type: text/html\nFrom: errors@silverstripe.com");
|
|
}
|
|
|
|
/**
|
|
* @param string $server IP-Address or domain
|
|
*/
|
|
static function set_custom_smtp_server($server) {
|
|
self::$custom_smtp_server = $server;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
static function get_custom_smtp_server() {
|
|
return self::$custom_smtp_server;
|
|
}
|
|
|
|
/**
|
|
* Send errors to the given email address.
|
|
* Can be used like so:
|
|
* if(Director::isLive()) Debug::send_errors_to("sam@silverstripe.com");
|
|
* @param emailAddress The email address to send them to
|
|
* @param sendWarnings Set to true to send warnings as well as errors.
|
|
*/
|
|
static function send_errors_to($emailAddress, $sendWarnings = true) {
|
|
self::$send_errors_to = $emailAddress;
|
|
self::$send_warnings_to = $sendWarnings ? $emailAddress : null;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
static function get_send_errors_to() {
|
|
return self::$send_errors_to;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
static function get_send_warnings_to() {
|
|
return self::$send_warnings_to;
|
|
}
|
|
|
|
/**
|
|
* Deprecated. Send live errors and warnings to the given address.
|
|
* @deprecated Use send_errors_to() instead.
|
|
*/
|
|
static function sendLiveErrorsTo($emailAddress) {
|
|
user_error('Debug::sendLiveErrorsTo() is deprecated. Use Debug::send_errors_to() instead.', E_USER_NOTICE);
|
|
if(!Director::isDev()) self::send_errors_to($emailAddress, true);
|
|
}
|
|
|
|
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 $caller;
|
|
}
|
|
|
|
static function backtrace($returnVal = false, $ignoreAjax = false) {
|
|
|
|
$bt = debug_backtrace();
|
|
|
|
// Ingore functions that are plumbing of the error handler
|
|
$ignoredFunctions = array('Debug::emailError','Debug::warningHandler','Debug::fatalHandler','errorHandler','Debug::showError','Debug::backtrace', 'exceptionHandler');
|
|
while( $bt && in_array(self::full_func_name($bt[0]), $ignoredFunctions) ) {
|
|
array_shift($bt);
|
|
}
|
|
|
|
$result = "<ul>";
|
|
foreach($bt as $item) {
|
|
if(Director::is_ajax() && !$ignoreAjax) {
|
|
$result .= self::full_func_name($item,true) . "\n";
|
|
$result .= "line $item[line] of " . basename($item['file']) . "\n\n";
|
|
} else {
|
|
if ($item['function'] == 'user_error') {
|
|
$name = $item['args'][0];
|
|
} else {
|
|
$name = self::full_func_name($item,true);
|
|
}
|
|
$result .= "<li><b>" . $name . "</b>\n<br />\n";
|
|
$result .= isset($item['line']) ? "Line $item[line] of " : '';
|
|
$result .= isset($item['file']) ? basename($item['file']) : '';
|
|
$result .= "</li>\n";
|
|
}
|
|
}
|
|
$result .= "</ul>";
|
|
|
|
if ($returnVal) {
|
|
return $result;
|
|
} else {
|
|
echo $result;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the full function name. If showArgs is set to true, a string representation of the arguments will be shown
|
|
*/
|
|
static function full_func_name($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'] = $_SERVER['REQUEST_URI'];
|
|
header("HTTP/1.1 302 Found");
|
|
header("Location: " . Director::baseURL() . "Security/login");
|
|
die();
|
|
}
|
|
}
|
|
|
|
function exceptionHandler($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, $context);
|
|
}
|
|
|
|
function errorHandler($errno, $errstr, $errfile, $errline, $errcontext) {
|
|
switch($errno) {
|
|
case E_ERROR:
|
|
case E_CORE_ERROR:
|
|
case E_USER_ERROR:
|
|
Debug::fatalHandler($errno, $errstr, $errfile, $errline, $errcontext);
|
|
break;
|
|
|
|
case E_NOTICE:
|
|
case E_WARNING:
|
|
case E_CORE_WARNING:
|
|
case E_USER_WARNING:
|
|
Debug::warningHandler($errno, $errstr, $errfile, $errline, $errcontext);
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Interface for rendering an error report.
|
|
*
|
|
* @todo decide whether to subclass this to display email and debug dumps
|
|
*/
|
|
class DebugReporter {
|
|
|
|
function writeHeader() {
|
|
|
|
}
|
|
|
|
function writeFooter() {
|
|
|
|
}
|
|
|
|
}
|
|
|
|
?>
|