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Modified from what is available at https://github.com/JosephLenton/PHP-Error to allow Xdebug's var_dump prettify as per https://github.com/JosephLenton/PHP-Error/pull/46
Raw
php_error.php
<?php
/**
* @license
*
* PHP Error
*
* Copyright (c) 2012 Joseph Lenton
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Uses:
* JSMin-php https://github.com/rgrove/jsmin-php/
* jQuery http://jquery.com/
*/
/**
* PHP Error
*
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
*
* WARNING! It is downright _DANGEROUS_ to use this in production, on
* a live website. It should *ONLY* be used for development.
*
* PHP Error will kill your environment at will, clear the output
* buffers, and allows HTML injection from exceptions.
*
* In future versions it plans to do far more then that.
*
* If you use it in development, awesome! If you use it in production,
* you're an idiot.
*
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
*
* = Info
*
* A small API for replacing the standard PHP errors, with prettier
* error reporting. This will change the error reporting level, and this
* is deliberate, as I believe in strict development errors.
*
* simple usage:
*
* \php_error\reportErrors();
*
* Advanced example:
*
* There is more too it if you want more customized error handling. You
* can pass in options, to customize the setup, and you get back a
* handler you can alter at runtime.
*
* $handler = new \php_error\ErrorHandler( $myOptions );
* $handler->turnOn();
*
* There should only ever be one handler! This is an (underdstandable)
* limitation in PHP. It's because if an exception or error is raised,
* then there is a single point of handling it.
*
* = INI Options
*
* - php_error.force_disabled When set to a true value (such as on),
* this forces this to be off.
* This is so you can disable this script
* in your production servers ini file,
* incase you accidentally upload this there.
*
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
*
* @author Joseph Lenton | https://github.com/josephlenton
*/
namespace php_error;
use \php_error\ErrorException,
\php_error\FileLinesSet,
\php_error\ErrorHandler,
\php_error\JSMin,
\php_error\JSMinException;
use \Closure,
\Exception,
\InvalidArgumentException;
use \ReflectionMethod,
\ReflectionFunction,
\ReflectionParameter;
global $_php_error_already_setup,
$_php_error_global_handler,
$_php_error_is_ini_enabled;
/*
* Avoid being run twice.
*/
if ( empty($_php_error_already_setup) ) {
$_php_error_already_setup = true;
/*
* These are used as token identifiers by PHP.
*
* If they are missing, then they should never pop out of PHP,
* so we just give them their future value.
*
* They are primarily here so I don't have to alter the 5.3
* compliant code. Instead I can delete pre-5.3 code (this
* code), in the future.
*
* As long as the value is unique, and does not clash with PHP,
* then any number could be used. That is why they start counting
* at 100,000.
*/
if ( ! defined('T_DIR') ) {
define( 'T_DIR', 100001 );
}
if ( ! defined('T_GOTO') ) {
define( 'T_GOTO', 100002 );
}
if ( ! defined('T_NAMESPACE') ) {
define( 'T_NAMESPACE', 100003 );
}
if ( ! defined('T_NS_C') ) {
define( 'T_NS_C', 100004 );
}
if ( ! defined('T_NS_SEPARATOR') ) {
define( 'T_NS_SEPARATOR', 100005 );
}
if ( ! defined('T_USE') ) {
define( 'T_USE', 100006 );
}
/*
* Check if it's empty, in case this file is loaded multiple times.
*/
if ( ! isset($_php_error_global_handler) ) {
$_php_error_global_handler = null;
$_php_error_is_ini_enabled = false;
/*
* check both 'disable' and 'disabled' incase it's mispelt
* check that display errors is on
* and ensure we are *not* a command line script.
*/
$_php_error_is_ini_enabled =
! @get_cfg_var( 'php_error.force_disabled' ) &&
! @get_cfg_var( 'php_error.force_disable' ) &&
@ini_get('display_errors') === '1' &&
PHP_SAPI !== 'cli'
;
}
/**
* This is shorthand for turning off error handling,
* calling a block of code, and then turning it on.
*
* However if 'reportErrors' has not been called,
* then this will silently do nothing.
*
* @param callback A PHP function to call.
* @return The result of calling the callback.
*/
function withoutErrors( $callback ) {
global $_php_error_global_handler;
if ( $_php_error_global_handler !== null ) {
return $_php_error_global_handler->withoutErrors( $callback );
} else {
return $callback();
}
}
/**
* Turns on error reporting, and returns the handler.
*
* If you just want error reporting on, then don't bother
* catching the handler. If you're building something
* clever, like a framework, then you might want to grab
* and use it.
*
* Note that calling this a second time will replace the
* global error handling with a new error handler.
* The existing one will be turned off, and the new one
* turned on.
*
* You can't use two at once!
*
* @param options Optional, options declaring how PHP Error should be setup and used.
* @return The ErrorHandler used for reporting errors.
*/
function reportErrors( $options=null ) {
$handler = new ErrorHandler( $options );
return $handler->turnOn();
}
/**
* The actual handler. There can only ever be one.
*/
class ErrorHandler
{
const REGEX_DOCTYPE = '/<( )*!( *)DOCTYPE([^>]+)>/';
const REGEX_PHP_IDENTIFIER = '\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*';
const REGEX_PHP_CONST_IDENTIFIER = '/\b[A-Z_\x7f-\xff][A-Z0-9_\x7f-\xff]*/';
/**
* Matches:
* {closure}()
* blah::foo()
* foo()
*
* It is:
* a closure
* or a method or function
* followed by parenthesis '()'
*
* a function is 'namespace function'
* a method is 'namespace class::function', or 'namespace class->function'
* the whole namespace is optional
* namespace is made up of an '\' and then repeating 'namespace\'
* both the first slash, and the repeating 'namespace\', are optional
*
* 'END' matches it at the end of a string, the other one does not.
*/
const REGEX_METHOD_OR_FUNCTION_END = '/(\\{closure\\})|(((\\\\)?(\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*\\\\)*)?\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(::[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)?)\\(\\)$/';
const REGEX_METHOD_OR_FUNCTION = '/(\\{closure\\})|(((\\\\)?(\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*\\\\)*)?\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(::[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)?)\\(\\)/';
const REGEX_VARIABLE = '/\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/';
const REGEX_MISSING_SEMI_COLON_FOLLOWING_LINE = '/^ *(return|}|if|while|foreach|for|switch)/';
/**
* The number of lines to take from the file,
* where the error is reported. This is the number
* of lines around the line in question,
* including that line.
*
* So '9' will be the error line + 4 lines above + 4 lines below.
*/
const NUM_FILE_LINES = 13;
const FILE_TYPE_APPLICATION = 1;
const FILE_TYPE_IGNORE = 2;
const FILE_TYPE_ROOT = 3;
const PHP_ERROR_MAGIC_HEADER_KEY = 'PHP_ERROR_MAGIC_HEADER';
const PHP_ERROR_MAGIC_HEADER_VALUE = 'php_stack_error';
const MAGIC_IS_PRETTY_ERRORS_MARKER = '<!-- __magic_php_error_is_a_stack_trace_constant__ -->';
const PHP_ERROR_INI_PREFIX = 'php_error';
/**
* At the time of writing, scalar type hints are unsupported.
* By scalar, I mean 'string' and 'integer'.
*
* If they do get added, this is here as a trap to turn scalar
* type hint warnings on and off.
*/
private static $IS_SCALAR_TYPE_HINTING_SUPPORTED = false;
private static $SCALAR_TYPES = array(
'string', 'integer', 'float', 'boolean',
'bool', 'int', 'number'
);
/**
* A mapping of PHP internal symbols,
* mapped to descriptions of them.
*/
private static $PHP_SYMBOL_MAPPINGS = array(
'$end' => 'end of file',
'T_ABSTRACT' => 'abstract',
'T_AND_EQUAL' => "'&='",
'T_ARRAY' => 'array',
'T_ARRAY_CAST' => 'array cast',
'T_AS' => "'as'",
'T_BOOLEAN_AND' => "'&&'",
'T_BOOLEAN_OR' => "'||'",
'T_BOOL_CAST' => 'boolean cast',
'T_BREAK' => 'break',
'T_CASE' => 'case',
'T_CATCH' => 'catch',
'T_CLASS' => 'class',
'T_CLASS_C' => '__CLASS__',
'T_CLONE' => 'clone',
'T_CLOSE_TAG' => 'closing PHP tag',
'T_CONCAT_EQUAL' => "'.='",
'T_CONST' => 'const',
'T_CONSTANT_ENCAPSED_STRING' => 'string',
'T_CONTINUE' => 'continue',
'T_CURLY_OPEN' => '\'{$\'',
'T_DEC' => '-- (decrement)',
'T_DECLARE' => 'declare',
'T_DEFAULT' => 'default',
'T_DIR' => '__DIR__',
'T_DIV_EQUAL' => "'/='",
'T_DNUMBER' => 'number',
'T_DOLLAR_OPEN_CURLY_BRACES' => '\'${\'',
'T_DO' => "'do'",
'T_DOUBLE_ARROW' => "'=>'",
'T_DOUBLE_CAST' => 'double cast',
'T_DOUBLE_COLON' => "'::'",
'T_ECHO' => 'echo',
'T_ELSE' => 'else',
'T_ELSEIF' => 'elseif',
'T_EMPTY' => 'empty',
'T_ENCAPSED_AND_WHITESPACE' => 'non-terminated string',
'T_ENDDECLARE' => 'enddeclare',
'T_ENDFOR' => 'endfor',
'T_ENDFOREACH' => 'endforeach',
'T_ENDIF' => 'endif',
'T_ENDSWITCH' => 'endswitch',
'T_ENDWHILE' => 'endwhile',
'T_EVAL' => 'eval',
'T_EXIT' => 'exit call',
'T_EXTENDS' => 'extends',
'T_FILE' => '__FILE__',
'T_FINAL' => 'final',
'T_FOR' => 'for',
'T_FOREACH' => 'foreach',
'T_FUNCTION' => 'function',
'T_FUNC_C' => '__FUNCTION__',
'T_GLOBAL' => 'global',
'T_GOTO' => 'goto',
'T_HALT_COMPILER' => '__halt_compiler',
'T_IF' => 'if',
'T_IMPLEMENTS' => 'implements',
'T_INC' => '++ (increment)',
'T_INCLUDE' => 'include',
'T_INCLUDE_ONCE' => 'include_once',
'T_INSTANCEOF' => 'instanceof',
'T_INT_CAST' => 'int cast',
'T_INTERFACE' => 'interface',
'T_ISSET' => 'isset',
'T_IS_EQUAL' => "'=='",
'T_IS_GREATER_OR_EQUAL' => "'>='",
'T_IS_IDENTICAL' => "'==='",
'T_IS_NOT_EQUAL' => "'!=' or '<>'",
'T_IS_NOT_IDENTICAL' => "'!=='",
'T_IS_SMALLER_OR_EQUAL' => "'<='",
'T_LINE' => '__LINE__',
'T_LIST' => 'list',
'T_LNUMBER' => 'number',
'T_LOGICAL_AND' => "'and'",
'T_LOGICAL_OR' => "'or'",
'T_LOGICAL_XOR' => "'xor'",
'T_METHOD_C' => '__METHOD__',
'T_MINUS_EQUAL' => "'-='",
'T_MOD_EQUAL' => "'%='",
'T_MUL_EQUAL' => "'*='",
'T_NAMESPACE' => 'namespace',
'T_NEW' => 'new',
'T_NUM_STRING' => 'array index in a string',
'T_NS_C' => '__NAMESPACE__',
'T_NS_SEPARATOR' => 'namespace seperator',
'T_OBJECT_CAST' => 'object cast',
'T_OBJECT_OPERATOR' => "'->'",
'T_OLD_FUNCTION' => 'old_function',
'T_OPEN_TAG' => "'<?php' or '<?'",
'T_OPEN_TAG_WITH_ECHO' => "'<?php echo '",
'T_OR_EQUAL' => "'|='",
'T_PAAMAYIM_NEKUDOTAYIM' => "'::'",
'T_PLUS_EQUAL' => "'+='",
'T_PRINT' => 'print',
'T_PRIVATE' => 'private',
'T_PUBLIC' => 'public',
'T_PROTECTED' => 'protected',
'T_REQUIRE' => 'require',
'T_REQUIRE_ONCE' => 'require_once',
'T_RETURN' => 'return',
'T_SL' => "'<<'",
'T_SL_EQUAL' => "'<<='",
'T_SR' => "'>>'",
'T_SR_EQUAL' => "'>>='",
'T_START_HEREDOC' => "'<<<'",
'T_STATIC' => 'static',
'T_STRING' => 'string',
'T_STRING_CAST' => 'string cast',
'T_SWITCH' => 'switch',
'T_THROW' => 'throw',
'T_TRY' => 'try',
'T_UNSET' => 'unset',
'T_UNSET_CAST' => 'unset cast',
'T_USE' => 'use',
'T_VAR' => 'var',
'T_VARIABLE' => 'variable',
'T_WHILE' => 'while',
'T_WHITESPACE' => 'whitespace',
'T_XOR_EQUAL' => "'^='"
);
private static $syntaxMap = array(
'const' => 'syntax-literal',
'reference_ampersand' => 'syntax-function',
T_COMMENT => 'syntax-comment',
T_DOC_COMMENT => 'syntax-comment',
T_ABSTRACT => 'syntax-keyword',
T_AS => 'syntax-keyword',
T_BREAK => 'syntax-keyword',
T_CASE => 'syntax-keyword',
T_CATCH => 'syntax-keyword',
T_CLASS => 'syntax-keyword',
T_CONST => 'syntax-keyword',
T_CONTINUE => 'syntax-keyword',
T_DECLARE => 'syntax-keyword',
T_DEFAULT => 'syntax-keyword',
T_DO => 'syntax-keyword',
T_ELSE => 'syntax-keyword',
T_ELSEIF => 'syntax-keyword',
T_ENDDECLARE => 'syntax-keyword',
T_ENDFOR => 'syntax-keyword',
T_ENDFOREACH => 'syntax-keyword',
T_ENDIF => 'syntax-keyword',
T_ENDSWITCH => 'syntax-keyword',
T_ENDWHILE => 'syntax-keyword',
T_EXTENDS => 'syntax-keyword',
T_FINAL => 'syntax-keyword',
T_FOR => 'syntax-keyword',
T_FOREACH => 'syntax-keyword',
T_FUNCTION => 'syntax-keyword',
T_GLOBAL => 'syntax-keyword',
T_GOTO => 'syntax-keyword',
T_IF => 'syntax-keyword',
T_IMPLEMENTS => 'syntax-keyword',
T_INSTANCEOF => 'syntax-keyword',
T_INTERFACE => 'syntax-keyword',
T_LOGICAL_AND => 'syntax-keyword',
T_LOGICAL_OR => 'syntax-keyword',
T_LOGICAL_XOR => 'syntax-keyword',
T_NAMESPACE => 'syntax-keyword',
T_NEW => 'syntax-keyword',
T_PRIVATE => 'syntax-keyword',
T_PUBLIC => 'syntax-keyword',
T_PROTECTED => 'syntax-keyword',
T_RETURN => 'syntax-keyword',
T_STATIC => 'syntax-keyword',
T_SWITCH => 'syntax-keyword',
T_THROW => 'syntax-keyword',
T_TRY => 'syntax-keyword',
T_USE => 'syntax-keyword',
T_VAR => 'syntax-keyword',
T_WHILE => 'syntax-keyword',
// __VAR__ type magic constants
T_CLASS_C => 'syntax-literal',
T_DIR => 'syntax-literal',
T_FILE => 'syntax-literal',
T_FUNC_C => 'syntax-literal',
T_LINE => 'syntax-literal',
T_METHOD_C => 'syntax-literal',
T_NS_C => 'syntax-literal',
T_DNUMBER => 'syntax-literal',
T_LNUMBER => 'syntax-literal',
T_CONSTANT_ENCAPSED_STRING => 'syntax-string',
T_VARIABLE => 'syntax-variable',
// this is for unescaped strings, which appear differently
// this includes function names
T_STRING => 'syntax-function',
// in build keywords, which work like functions
T_ARRAY => 'syntax-function',
T_CLONE => 'syntax-function',
T_ECHO => 'syntax-function',
T_EMPTY => 'syntax-function',
T_EVAL => 'syntax-function',
T_EXIT => 'syntax-function',
T_HALT_COMPILER => 'syntax-function',
T_INCLUDE => 'syntax-function',
T_INCLUDE_ONCE => 'syntax-function',
T_ISSET => 'syntax-function',
T_LIST => 'syntax-function',
T_REQUIRE_ONCE => 'syntax-function',
T_PRINT => 'syntax-function',
T_REQUIRE => 'syntax-function',
T_UNSET => 'syntax-function'
);
/**
* A list of methods which are known to call the autoloader,
* but should not error, if the class is not found.
*
* They are allowed to fail, so we don't store a class not
* found exception if they do.
*/
private static $SAFE_AUTOLOADER_FUNCTIONS = array(
'class_exists',
'interface_exists',
'method_exists',
'property_exists',
'is_subclass_of'
);
/**
* When returning values, if a mime type is set,
* then PHP Error should only output if the mime type
* is one of these.
*/
private static $ALLOWED_RETURN_MIME_TYPES = array(
'text/html',
'application/xhtml+xml'
);
private static function isIIS() {
return (
isset($_SERVER['SERVER_SOFTWARE']) &&
strpos($_SERVER['SERVER_SOFTWARE'], 'IIS/') !== false
) || (
isset($_SERVER['_FCGI_X_PIPE_']) &&
strpos($_SERVER['_FCGI_X_PIPE_'], 'IISFCGI') !== false
);
}
/**
* This attempts to state if this is *not* a PHP request,
* but it cannot say if it *is* a PHP request. It achieves
* this by looking for a mime type.
*
* For example if the mime type is JavaScript, then we
* know it's not PHP. However there is no "yes, this is
* definitely a normal HTML response" flag we can check.
*/
private static function isNonPHPRequest() {
/*
* Check if we are a mime type that isn't allowed.
*
* Anything other than 'text/html' or similar will cause
* this to turn off.
*/
$response = ErrorHandler::getResponseHeaders();
foreach ( $response as $key => $value ) {
if ( strtolower($key) === 'content-type' ) {
$found = true;
foreach ( ErrorHandler::$ALLOWED_RETURN_MIME_TYPES as $type ) {
if ( stripos($value, $type) !== false ) {
$found = true;
break;
}
}
if ( ! $found ) {
return true;
}
break;
}
}
return false;
}
/**
* Looks up a description for the symbol given,
* and if found, it is returned.
*
* If it's not found, then the symbol given is returned.
*/
private static function phpSymbolToDescription( $symbol ) {
if ( isset(ErrorHandler::$PHP_SYMBOL_MAPPINGS[$symbol]) ) {
return ErrorHandler::$PHP_SYMBOL_MAPPINGS[$symbol];
} else {
return "'$symbol'";
}
}
/**
* Attempts to syntax highlight the code snippet done.
*
* This is then returned as HTML, ready to be dumped to the screen.
*
* @param code An array of code lines to syntax highlight.
* @return HTML version of the code given, syntax highlighted.
*/
private static function syntaxHighlight( $code ) {
$syntaxMap = ErrorHandler::$syntaxMap;
// @supress invalid code raises a warning
$tokens = @token_get_all( "<?php " . $code . " ?" . ">" );
$html = array();
$len = count($tokens)-1;
$inString = false;
$stringBuff = null;
$skip = false;
for ( $i = 1; $i < $len; $i++ ) {
$token = $tokens[$i];
if ( is_array($token) ) {
$type = $token[0];
$code = $token[1];
} else {
$type = null;
$code = $token;
}
// work out any whitespace padding
if ( strpos($code, "\n") !== false && trim($code) === '' ) {
if ( $inString ) {
$html[]= "<span class='syntax-string'>" . join('', $stringBuff);
$stringBuff = array();
}
} else if ( $code === '&' ) {
if ( $i < $len ) {
$next = $tokens[$i+1];
if ( is_array($next) && $next[0] === T_VARIABLE ) {
$type = 'reference_ampersand';
}
}
} else if ( $code === '"' || $code === "'" ) {
if ( $inString ) {
$html[]= "<span class='syntax-string'>" . join('', $stringBuff) . htmlspecialchars($code) . "</span>";
$stringBuff = null;
$skip = true;
} else {
$stringBuff = array();
}
$inString = !$inString;
} else if ( $type === T_STRING ) {
$matches = array();
preg_match(ErrorHandler::REGEX_PHP_CONST_IDENTIFIER, $code, $matches);
if ( $matches && strlen($matches[0]) === strlen($code) ) {
$type = 'const';
}
}
if ( $skip ) {
$skip = false;
} else {
$code = htmlspecialchars( $code );
if ( $type !== null && isset($syntaxMap[$type]) ) {
$class = $syntaxMap[$type];
if ( $type === T_CONSTANT_ENCAPSED_STRING && strpos($code, "\n") !== false ) {
$append = "<span class='$class'>" .
join(
"</span>\n<span class='$class'>",
explode( "\n", $code )
) .
"</span>" ;
} else if ( strrpos($code, "\n") === strlen($code)-1 ) {
$append = "<span class='$class'>" . substr($code, 0, strlen($code)-1) . "</span>\n";
} else {
$append = "<span class='$class'>$code</span>";
}
} else if ( $inString && $code !== '"' ) {
$append = "<span class='syntax-string'>$code</span>";
} else {
$append = $code;
}
if ( $inString ) {
$stringBuff[]= $append;
} else {
$html[]= $append;
}
}
}
if ( $stringBuff !== null ) {
$html[]= "<span class='syntax-string'>" . join('', $stringBuff) . '</span>';
$stringBuff = null;
}
return join( '', $html );
}
/**
* Splits a given function name into it's 'class, function' parts.
* If there is no class, then null is returned.
*
* It also returns these parts in an array of: array( $className, $functionName );
*
* Usage:
*
* list( $class, $function ) = ErrorHandler::splitFunction( $name );
*
* @param name The function name to split.
* @return An array containing class and function name.
*/
private static function splitFunction( $name ) {
$name = preg_replace( '/\\(\\)$/', '', $name );
if ( strpos($name, '::') !== false ) {
$parts = explode( '::', $name );
$className = $parts[0];
$type = '::';
$functionName = $parts[1];
} else if ( strpos($name, '->') !== false ) {
$parts = explode( '->', $name );
$className = $parts[0];
$type = '->';
$functionName = $parts[1];
} else {
$className = null;
$type = null;
$functionName = $name;
}
return array( $className, $type, $functionName );
}
private static function newArgument( $name, $type=false, $isPassedByReference=false, $isOptional=false, $optionalValue=null, $highlight=false ) {
if ( $name instanceof ReflectionParameter ) {
$highlight = func_num_args() > 1 ?
$highlight = $type :
false;
$klass = $name->getDeclaringClass();
$functionName = $name->getDeclaringFunction()->name;
if ( $klass !== null ) {
$klass = $klass->name;
}
$export = ReflectionParameter::export(
( $klass ?
array( "\\$klass", $functionName ) :
$functionName ),
$name->name,
true
);
$paramType = preg_replace('/.*?(\w+)\s+\$'.$name->name.'.*/', '\\1', $export);
if ( strpos($paramType, '[') !== false || strlen($paramType) === 0 ) {
$paramType = null;
}
return ErrorHandler::newArgument(
$name->name,
$paramType,
$name->isPassedByReference(),
$name->isDefaultValueAvailable(),
( $name->isDefaultValueAvailable() ?
var_export( $name->getDefaultValue(), true ) :
null ),
( func_num_args() > 1 ?
$type :
false )
);
} else {
return array(
'name' => $name,
'has_type' => ( $type !== false ),
'type' => $type,
'is_reference' => $isPassedByReference,
'has_default' => $isOptional,
'default_val' => $optionalValue,
'is_highlighted' => $highlight
);
}
}
private static function syntaxHighlightFunctionMatch( $match, &$stackTrace, $highlightArg=null, &$numHighlighted=0 ) {
list( $className, $type, $functionName ) = ErrorHandler::splitFunction( $match );
// is class::method()
if ( $className !== null ) {
$reflectFun = new ReflectionMethod( $className, $functionName );
// is a function
} else if ( $functionName === '{closure}' ) {
return '<span class="syntax-variable">$closure</span>';
} else {
$reflectFun = new ReflectionFunction( $functionName );
}
if ( $reflectFun ) {
$params = $reflectFun->getParameters();
if ( $params ) {
$args = array();
$min = 0;
foreach( $params as $i => $param ) {
$arg = ErrorHandler::newArgument( $param );
if ( ! $arg['has_default'] ) {
$min = $i;
}
$args[]= $arg;
}
if ( $highlightArg !== null ) {
for ( $i = $highlightArg; $i <= $min; $i++ ) {
$args[$i]['is_highlighted'] = true;
}
$numHighlighted = $min-$highlightArg;
}
if ( $className !== null ) {
if ( $stackTrace && isset($stackTrace[1]) && isset($stackTrace[1]['type']) ) {
$type = htmlspecialchars( $stackTrace[1]['type'] );
}
} else {
$type = null;
}
return ErrorHandler::syntaxHighlightFunction( $className, $type, $functionName, $args );
}
}
return null;
}
/**
* Returns the values given, as HTML, syntax highlighted.
* It's a shorter, slightly faster, more no-nonsense approach
* then 'syntaxHighlight'.
*
* This is for syntax highlighting:
* - fun( [args] )
* - class->fun( [args] )
* - class::fun( [args] )
*
* Class and type can be null, to denote no class, but are not optional.
*/
private static function syntaxHighlightFunction( $class, $type, $fun, &$args=null ) {
$info = array();
// set the info
if ( isset($class) && $class && isset($type) && $type ) {
if ( $type === '->' ) {
$type = '-&gt;';
}
$info []= "<span class='syntax-class'>$class</span>$type";
}
if ( isset($fun) && $fun ) {
$info []= "<span class='syntax-function'>$fun</span>";
}
if ( $args ) {
$info []= '( ';
foreach ($args as $i => $arg) {
if ( $i > 0 ) {
$info[]= ', ';
}
if ( is_string($arg) ) {
$info[]= $arg;
} else {
$highlight = $arg['is_highlighted'];
$name = $arg['name'];
if ( $highlight ) {
$info[]= '<span class="syntax-higlight-variable">';
}
if ( $name === '_' ) {
$info[]= '<span class="syntax-variable-not-important">';
}
if ( $arg['has_type'] ) {
$info []= "<span class='syntax-class'>";
$info []= $arg['type'];
$info []= '</span> ';
}
if ( $arg['is_reference'] ) {
$info []= '<span class="syntax-function">&amp;</span>';
}
$info []= "<span class='syntax-variable'>\$$name</span>";
if ( $arg['has_default'] ) {
$info []= '=<span class="syntax-literal">' . $arg['default_val'] . '</span>';
}
if ( $name === '_' ) {
$info[]= '</span>';
}
if ( $highlight ) {
$info[]= '</span>';
}
}
}
$info []= ' )';
} else {
$info []= '()';
}
return join( '', $info );
}
/**
* Checks if the item is in options, and if it is, then it is removed and returned.
*
* If it is not found, or if options is not an array, then the alt is returned.
*/
private static function optionsPop( &$options, $key, $alt=null ) {
if ( $options && isset($options[$key]) ) {
$val = $options[$key];
unset( $options[$key] );
return $val;
} else {
$iniAlt = @get_cfg_var( ErrorHandler::PHP_ERROR_INI_PREFIX . '.' . $key );
if ( $iniAlt !== false ) {
return $iniAlt;
} else {
return $alt;
}
}
}
private static function folderTypeToCSS( $type ) {
if ( $type === ErrorHandler::FILE_TYPE_ROOT ) {
return 'file-root';
} else if ( $type === ErrorHandler::FILE_TYPE_IGNORE ) {
return 'file-ignore';
} else if ( $type === ErrorHandler::FILE_TYPE_APPLICATION ) {
return 'file-app';
} else {
return 'file-common';
}
}
private static function isFolderType( &$folders, $longest, $file ) {
$parts = explode( '/', $file );
$len = min( count($parts), $longest );
for ( $i = $len; $i > 0; $i-- ) {
if ( isset($folders[$i]) ) {
$folderParts = &$folders[ $i ];
$success = false;
for ( $j = 0; $j < count($folderParts); $j++ ) {
$folderNames = $folderParts[$j];
for ( $k = 0; $k < count($folderNames); $k++ ) {
if ( $folderNames[$k] === $parts[$k] ) {
$success = true;
} else {
$success = false;
break;
}
}
}
if ( $success ) {
return true;
}
}
}
return false;
}
private static function setFolders( &$origFolders, &$longest, $folders ) {
$newFolders = array();
$newLongest = 0;
if ( $folders ) {
if ( is_array($folders) ) {
foreach ( $folders as $folder ) {
ErrorHandler::setFoldersInner( $newFolders, $newLongest, $folder );
}
} else if ( is_string($folders) ) {
ErrorHandler::setFoldersInner( $newFolders, $newLongest, $folders );
} else {
throw new Exception( "Unknown value given for folder: " . $folders );
}
}
$origFolders = $newFolders;
$longest = $newLongest;
}
private static function setFoldersInner( &$newFolders, &$newLongest, $folder ) {
$folder = str_replace( '\\', '/', $folder );
$folder = preg_replace( '/(^\\/+)|(\\/+$)/', '', $folder );
$parts = explode( '/', $folder );
$count = count( $parts );
$newLongest = max( $newLongest, $count );
if ( isset($newFolders[$count]) ) {
$folds = &$newFolders[$count];
$folds[]= $parts;
} else {
$newFolders[$count] = array( $parts );
}
}
private static function getRequestHeaders() {
if ( function_exists('getallheaders') ) {
return getallheaders();
} else {
$headers = array();
foreach ( $_SERVER as $key => $value ) {
if ( strpos($key, 'HTTP_') === 0 ) {
$key = str_replace( " ", "-", ucwords(strtolower( str_replace("_", " ", substr($key, 5)) )) );
$headers[ $key ] = $value;
}
}
return $headers;
}
}
private static function getResponseHeaders() {
$headers = function_exists('apache_response_headers') ?
apache_response_headers() :
array() ;
/*
* Merge the headers_list into apache_response_headers.
*
* This is because sometimes things are in one, which are
* not present in the other.
*/
if ( function_exists('headers_list') ) {
$hList = headers_list();
foreach ($hList as $header) {
$header = explode(":", $header);
$headers[ array_shift($header) ] = trim( implode(":", $header) );
}
}
return $headers;
}
public static function identifyTypeHTML( $arg, $recurseLevels=1 ) {
if ( ! is_array($arg) && !is_object($arg) ) {
if ( is_string($arg) ) {
return "<span class='syntax-string'>&quot;" . htmlentities($arg) . "&quot;</span>";
} else {
return "<span class='syntax-literal'>" . var_export( $arg, true ) . '</span>';
}
} else if ( is_array($arg) ) {
if ( count($arg) === 0 ) {
return "[]";
} else if ( $recurseLevels > 0 ) {
$argArr = array();
foreach ($arg as $ag) {
$argArr[]= ErrorHandler::identifyTypeHTML( $ag, $recurseLevels-1 );
}
if ( ($recurseLevels % 2) === 0 ) {
return "[" . join(', ', $argArr) . "]";
} else {
return "[ " . join(', ', $argArr) . " ]";
}
} else {
return "[...]";
}
} else if ( get_class($arg) === 'Closure' ) {
return '<span class="syntax-variable">$Closure</span>()';
} else {
$argKlass = get_class( $arg );
if ( preg_match(ErrorHandler::REGEX_PHP_CONST_IDENTIFIER, $argKlass) ) {
return '<span class="syntax-literal">$' . $argKlass . '</span>';
} else {
return '<span class="syntax-variable">$' . $argKlass . '</span>';
}
}
}
private $cachedFiles;
private $isShutdownRegistered;
private $isOn;
private $ignoreFolders = array();
private $ignoreFoldersLongest = 0;
private $applicationFolders = array();
private $applicationFoldersLongest = 0;
private $defaultErrorReportingOn;
private $defaultErrorReportingOff;
private $applicationRoot;
private $serverName;
private $catchClassNotFound;
private $catchSurpressedErrors;
private $catchAjaxErrors;
private $backgroundText;
private $numLines;
private $displayLineNumber;
private $htmlOnly;
private $isBufferSetup;
private $bufferOutputStr;
private $bufferOutput;
private $isAjax;
private $lastGlobalErrorHandler;
private $classNotFoundException;
private $clearAllBuffers;
/**
* = Options =
*
* All options are optional, and so is passing in an options item.
* You don't have to supply any, it's up to you.
*
* Note that if 'php_error.force_disable' is true, then this object
* will try to look like it works, but won't actually do anything.
*
* All options can also be passed in from 'php.ini'. You do this
* by setting it with 'php_error.' prefix. For example:
*
* php_error.catch_ajax_errors = On
* php_error.error_reporting_on = E_ALL | E_STRICT
*
* Includes:
* = Types of errors this will catch =
* - catch_ajax_errors When on, this will inject JS Ajax wrapping code, to allow this to catch any future JSON errors. Defaults to true.
* - catch_supressed_errors The @ supresses errors. If set to true, then they are still reported anyway, but respected when false. Defaults to false.
* - catch_class_not_found When true, loading a class that does not exist will be caught. This defaults to true.
*
* = Error reporting level =
* - error_reporting_on value for when errors are on, defaults to all errors
* - error_reporting_off value for when errors are off, defaults to php.ini's error_reporting.
*
* = Setup Details =
* - application_root When it's working out hte stack trace, this is the root folder of the application, to use as it's base.
* Defaults to the servers root directory.
*
* A relative path can be given, but lets be honest, an explicit path is the way to guarantee that you
* will get the path you want. My relative might not be the same as your relative.
*
* - snippet_num_lines The number of lines to display in the code snippet.
* That includes the line being reported.
*
* - server_name The name for this server, defaults to "$_SERVER['SERVER_NAME']"
*
* - ignore_folders This is allows you to highlight non-framework code in a stack trace.
* An array of folders to ignore, when working out the stack trace.
* This is folder prefixes in relation to the application_root, whatever that might be.
* They are only ignored if there is a file found outside of them.
* If you still don't get what this does, don't worry, it's here cos I use it.
*
* - application_folders Just like ignore, but anything found in these folders takes precedence
* over anything else.
*
* - background_text The text that appeares in the background. By default this is blank.
* Why? You can replace this with the name of your framework, for extra customization spice.
*
* - html_only By default, PHP Error only runs on ajax and HTML pages.
* If this is false, then it will also run when on non-HTML
* pages too, such as replying with images of JavaScript
* from your PHP. Defaults to true.
*
* @param options Optional, an array of values to customize this handler.
* @throws Exception This is raised if given an options that does *not* exist (so you know that option is meaningless).
*/
public function __construct( $options=null ) {
// there can only be one to rule them all
global $_php_error_global_handler;
if ( $_php_error_global_handler !== null ) {
$this->lastGlobalErrorHandler = $_php_error_global_handler;
} else {
$this->lastGlobalErrorHandler = null;
}
$_php_error_global_handler = $this;
$this->cachedFiles = array();
$this->isShutdownRegistered = false;
$this->isOn = false;
/*
* Deal with the options.
*
* They are removed one by one, and any left, will raise an error.
*/
$ignoreFolders = ErrorHandler::optionsPop( $options, 'ignore_folders' , null );
$appFolders = ErrorHandler::optionsPop( $options, 'application_folders', null );
if ( $ignoreFolders !== null ) {
ErrorHandler::setFolders( $this->ignoreFolders, $this->ignoreFoldersLongest, $ignoreFolders );
}
if ( $appFolders !== null ) {
ErrorHandler::setFolders( $this->applicationFolders, $this->applicationFoldersLongest, $appFolders );
}
$this->defaultErrorReportingOn = ErrorHandler::optionsPop( $options, 'error_reporting_on' , -1 );
$this->defaultErrorReportingOff = ErrorHandler::optionsPop( $options, 'error_reporting_off', error_reporting() );
$this->applicationRoot = ErrorHandler::optionsPop( $options, 'application_root' , $_SERVER['DOCUMENT_ROOT'] );
$this->serverName = ErrorHandler::optionsPop( $options, 'error_reporting_off', $_SERVER['SERVER_NAME'] );
$this->clearAllBuffers = ErrorHandler::optionsPop( $options, 'clear_all_buffers', false);
/*
* Relative paths might be given for document root,
* so we make it explicit.
*/
$dir = @realpath( $this->applicationRoot );
if ( ! is_string($dir) ) {
throw new Exception("Document root not found: " . $this->applicationRoot);
} else {
$this->applicationRoot = str_replace( '\\', '/', $dir );
}
$this->catchClassNotFound = !! ErrorHandler::optionsPop( $options, 'catch_class_not_found' , true );
$this->catchSurpressedErrors = !! ErrorHandler::optionsPop( $options, 'catch_supressed_errors', false );
$this->catchAjaxErrors = !! ErrorHandler::optionsPop( $options, 'catch_ajax_errors' , true );
$this->backgroundText = ErrorHandler::optionsPop( $options, 'background_text' , '' );
$this->numLines = ErrorHandler::optionsPop( $options, 'snippet_num_lines' , ErrorHandler::NUM_FILE_LINES );
$this->displayLineNumber = ErrorHandler::optionsPop( $options, 'display_line_numbers' , false );
$this->htmlOnly = !! ErrorHandler::optionsPop( $options, 'html_only', true );
$this->classNotFoundException = null;
$wordpress = ErrorHandler::optionsPop( $options, 'wordpress', false );
if ( $wordpress ) {
// php doesn't like | in constants and privates, so just set it directly : (
$this->defaultErrorReportingOn = E_ERROR | E_WARNING | E_PARSE | E_USER_DEPRECATED & ~E_DEPRECATED & ~E_STRICT;
}
if ( $options ) {
foreach ( $options as $key => $val ) {
throw new InvalidArgumentException( "Unknown option given $key" );
}
}
$this->isAjax =
isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) &&
( $_SERVER['HTTP_X_REQUESTED_WITH'] === 'XMLHttpRequest' );
$this->isBufferSetup = false;
$this->bufferOutputStr = '';
$this->bufferOutput = false;
$this->startBuffer();
}
/*
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
* Public Functions
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
*/
/**
* @return true if this is currently on, false if not.
*/
public function isOn() {
return $this->isOn;
}
/**
* @return If this is off, this returns true, otherwise false.
*/
public function isOff() {
return !$this->isOn;
}
/**
* Turns error reporting on.
*
* This will use the strictest error reporting available, or the
* level you pass in when creating this using the 'error_reporting_on'
* option.
*
* @return This error reporting handler, for method chaining.
*/
public function turnOn() {
$this->propagateTurnOff();
$this->setEnabled( true );
return $this;
}
/**
* Turns error reporting off.
*
* This will use the 'php.ini' setting for the error_reporting level,
* or one you have passed in if you used the 'error_reporting_off'
* option when creating this.
*
* @return This error reporting handler, for method chaining.
*/
public function turnOff() {
$this->setEnabled( false );
return $this;
}
/**
* Allows you to run a callback with strict errors turned off.
* Standard errors still apply, but this will use the default
* error and exception handlers.
*
* This is useful for when loading libraries which do not
* adhere to strict errors, such as Wordpress.
*
* To use:
*
* withoutErrors( function() {
* // unsafe code here
* });
*
* This will use the error_reporting value for when this is
* turned off.
*
* @param callback A PHP function to call.
* @return The result of calling the callback.
*/
public function withoutErrors( $callback ) {
if ( ! is_callable($callback) ) {
throw new Exception( "non callable callback given" );
}
if ( $this->isOn() ) {
$this->turnOff();
$result = $callback();
$this->turnOn();
return $result;
} else {
return $callback();
}
}
/**
* This is the shutdown function, which should *only* be called
* via 'register_shutdown_function'.
*
* It's exposed because it has to be exposed.
*/
public function __onShutdown() {
global $_php_error_is_ini_enabled;
if ( $_php_error_is_ini_enabled ) {
if ( $this->isOn() ) {
$error = error_get_last();
// fatal and syntax errors
if (
$error && (
$error['type'] === 1 ||
$error['type'] === 4 ||
$error['type'] === 64
)
) {
$this->reportError( $error['type'], $error['message'], $error['line'], $error['file'] );
} else {
$this->endBuffer();
}
} else {
$this->endBuffer();
}
}
}
/*
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
* Private Functions
* --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
*/
private function propagateTurnOff() {
if ( $this->lastGlobalErrorHandler !== null ) {
$this->lastGlobalErrorHandler->turnOff();
$this->lastGlobalErrorHandler->propagateTurnOff();
$this->lastGlobalErrorHandler = null;
}
}
/**
* This is intended to be used closely with 'onShutdown'.
* It ensures that output buffering is turned on.
*
* Why? The user may output content, and *then* hit an error.
* We cannot replace the page if this happens,
* because they have already outputted information.
*
* So we buffer the page, and then output at the end of the page,
* or when an error strikes.
*/
private function startBuffer() {
global $_php_error_is_ini_enabled;
if ( $_php_error_is_ini_enabled && !$this->isBufferSetup ) {
$this->isBufferSetup = true;
ini_set( 'implicit_flush', false );
ob_implicit_flush( false );
if ( ! @ini_get('output_buffering') ) {
@ini_set( 'output_buffering', 'on' );
}
$output = '';
$bufferOutput = true;
$this->bufferOutputStr = &$output;
$this->bufferOutput = &$bufferOutput;
ob_start( function($string) use (&$output, &$bufferOutput) {
if ( $bufferOutput ) {
$output .= $string;
return '';
} else {
$temp = $output . $string;
$output = '';
return $temp;
}
});
$self = $this;
register_shutdown_function( function() use ( $self ) {
$self->__onShutdown();
});
}
}
/**
* Turns off buffering, and discards anything buffered
* so far.
*
* This will return what has been buffered incase you
* do want it. However otherwise, it will be lost.
*/
private function discardBuffer() {
if ( $this->clearAllBuffers ) {
while( @ob_end_clean() );
}
$str = $this->bufferOutputStr;
$this->bufferOutputStr = '';
$this->bufferOutput = false;
return $str;
}
/**
* Flushes the internal buffer,
* outputting what is left.
*
* @param append Optional, extra content to append onto the output buffer.
*/
private function flushBuffer() {
$temp = $this->bufferOutputStr;
$this->bufferOutputStr = '';
return $temp;
}
/**
* This will finish buffering, and output the page.
* It also appends the magic JS onto the beginning of the page,
* if enabled, to allow working with Ajax.
*
* Note that if PHP Error has been disabled in the php.ini file,
* or through some other option, such as running from the command line,
* then this will do nothing (as no buffering will take place).
*/
public function endBuffer() {
if ( $this->isBufferSetup ) {
if (
!$this->isAjax &&
$this->catchAjaxErrors &&
(!$this->htmlOnly || !ErrorHandler::isNonPHPRequest())
) {
$content = ob_get_contents();
$handlers = ob_list_handlers();
$wasGZHandler = false;
$this->bufferOutput = true;
for ( $i = count($handlers)-1; $i >= 0; $i-- ) {
$handler = $handlers[$i];
if ( $handler === 'ob_gzhandler' ) {
$wasGZHandler = true;
ob_end_clean();
} else if ( $handler === 'default output handler' ) {
ob_end_clean();
} else {
ob_end_flush();
}
}
$content = $this->discardBuffer();
if ( $wasGZHandler ) {
ob_start('ob_gzhandler');
} else {
ob_start();
}
$js = $this->getContent( 'displayJSInjection' );
$js = JSMin::minify( $js );
// attemp to inject the script into the HTML, after the doctype
$matches = array();
preg_match( ErrorHandler::REGEX_DOCTYPE, $content, $matches );
if ( $matches ) {
$doctype = $matches[0];
$content = preg_replace( ErrorHandler::REGEX_DOCTYPE, "$doctype $js", $content );
} else {
echo $js;
}
echo $content;
}
}
}
/**
* Calls the given method on this object,
* captures it's output, and then returns it.
*
* @param method The name of the method to call.
* @return All of the text outputted during the method call.
*/
private function getContent( $method ) {
ob_start();
$this->$method();
$content = ob_get_contents();
ob_end_clean();
return $content;
}
private function isApplicationFolder( $file ) {
return ErrorHandler::isFolderType(
$this->applicationFolders,
$this->applicationFoldersLongest,
$file
);
}
private function isIgnoreFolder( $file ) {
return ErrorHandler::isFolderType(
$this->ignoreFolders,
$this->ignoreFoldersLongest,
$file
);
}
private function getFolderType( $root, $file ) {
$testFile = $this->removeRootPath( $root, $file );
// it's this file : (
if ( $file === __FILE__ ) {
$type = ErrorHandler::FILE_TYPE_IGNORE;
} else if ( strpos($testFile, '/') === false ) {
$type = ErrorHandler::FILE_TYPE_ROOT;
} else if ( $this->isApplicationFolder($testFile) ) {
$type = ErrorHandler::FILE_TYPE_APPLICATION;
} else if ( $this->isIgnoreFolder($testFile) ) {
$type = ErrorHandler::FILE_TYPE_IGNORE;
} else {
$type = false;
}
return array( $type, $testFile );
}
/**
* Finds the file named, and returns it's contents in an array.
*
* It's essentially the same as 'file_get_contents'. However
* this will add caching at this PHP layer, avoiding lots of
* duplicate calls.
*
* It also splits the file into an array of lines, and makes
* it html safe.
*
* @param path The file to get the contents of.
* @return The file we are after, as an array of lines.
*/
private function getFileContents( $path ) {
if ( isset($this->cachedFiles[$path]) ) {
return $this->cachedFiles[$path];
} else {
$contents = @file_get_contents( $path );
if ( $contents ) {
$contents = explode(
"\n",
preg_replace(
'/(\r\n)|(\n\r)|\r/',
"\n",
str_replace( "\t", ' ', $contents )
)
);
$this->cachedFiles[ $path ] = $contents;
return $contents;
}
}
return array();
}
/**
* Reads out the code from the section of the line,
* which is at fault.
*
* The array is in a mapping of: array( line-number => line )
*
* If something goes wrong, then null is returned.
*/
private function readCodeFile( $errFile, $errLine ) {
try {
$lines = $this->getFileContents( $errFile );
if ( $lines ) {
$numLines = $this->numLines;
$searchUp = ceil( $numLines*0.75 );
$searchDown = $numLines - $searchUp;
$countLines = count( $lines );
/*
* Search around the errLine.
* We should aim get half of the lines above, and half from below.
* If that fails we get as many as we can.
*/
/*
* If we are near the bottom edge,
* we go down as far as we can,
* then work up the search area.
*/
if ( $errLine+$searchDown > $countLines ) {
$minLine = max( 0, $countLines-$numLines );
$maxLine = $countLines;
/*
* Go up as far as we can, up to half the search area.
* Then stretch down the whole search area.
*/
} else {
$minLine = max( 0, $errLine-$searchUp );
$maxLine = min( $minLine+$numLines, count($lines) );
}
$fileLines = array_splice( $lines, $minLine, $maxLine-$minLine );
$stripSize = -1;
foreach ( $fileLines as $i => $line ) {
$newLine = ltrim( $line, ' ' );
if ( strlen($newLine) > 0 ) {
$numSpaces = strlen($line) - strlen($newLine);
if ( $stripSize === -1 ) {
$stripSize = $numSpaces;
} else {
$stripSize = min( $stripSize, $numSpaces );
}
} else {
$fileLines[$i] = $newLine;
}
}
if ( $stripSize > 0 ) {
/*
* It's pretty common that PHP code is not flush with the left hand edge,
* so subtract 4 spaces, if we can,
* to account for this.
*/
if ( $stripSize > 4 ) {
$stripSize -= 4;
}
foreach ( $fileLines as $i => $line ) {
if ( strlen($line) > $stripSize ) {
$fileLines[$i] = substr( $line, $stripSize );
}
}
}
$fileLines = join( "\n", $fileLines );
$fileLines = ErrorHandler::syntaxHighlight( $fileLines );
$fileLines = explode( "\n", $fileLines );
$lines = array();
for ( $i = 0; $i < count($fileLines); $i++ ) {
// +1 is because line numbers start at 1, whilst arrays start at 0
$lines[ $i+$minLine+1 ] = $fileLines[$i];
}
}
return $lines;
} catch ( Exception $ex ) {
return null;
}
return null;
}
/**
* Attempts to remove the root path from the path given.
* If the path can't be removed, then the original path is returned.
*
* For example if root is 'C:/users/projects/my_site',
* and the file is 'C:/users/projects/my_site/index.php',
* then the root is removed, and we are left with just 'index.php'.
*
* This is to remove line noise; you don't need to be told the
* 'C:/whatever' bit 20 times.
*
* @param root The root path to remove.
* @param path The file we are removing the root section from.
*/
private function removeRootPath( $root, $path ) {
$filePath = str_replace( '\\', '/', $path );
if (
strpos($filePath, $root) === 0 &&
strlen($root) < strlen($filePath)
) {
return substr($filePath, strlen($root)+1 );
} else {
return $filePath;
}
}
/**
* Parses, and alters, the errLine, errFile and message given.
*
* This includes adding syntax highlighting, removing duplicate
* information we already have, and making the error easier to
* read.
*/
private function improveErrorMessage( $ex, $code, $message, $errLine, $errFile, $root, &$stackTrace ) {
// change these to change where the source file is come from
$srcErrFile = $errFile;
$srcErrLine = $errLine;
$altInfo = null;
$stackSearchI = 0;
$skipStackFirst = function( &$stackTrace ) {
$skipFirst = true;
foreach ( $stackTrace as $i => $trace ) {
if ( $skipFirst ) {
$skipFirst = false;
} else {
if ( $trace && isset($trace['file']) && isset($trace['line']) ) {
return array( $trace['file'], $trace['line'], $i );
}
}
}
return array( null, null, null );
};
/*
* This is for calling a function that doesn't exist.
*
* The message contains a long description of where this takes
* place, even though we are already told this through line and
* file info. So we cut it out.
*/
if ( $code === 1 ) {
if (
( strpos($message, " undefined method ") !== false ) ||
( strpos($message, " undefined function ") !== false )
) {
$matches = array();
preg_match( '/\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*((->|::)[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)?\\(\\)$/', $message, $matches );
/*
* undefined function or method call
*/
if ( $matches ) {
list( $className, $type, $functionName ) = ErrorHandler::splitFunction( $matches[0] );
if ( $stackTrace && isset($stackTrace[1]) && $stackTrace[1]['args'] ) {
$numArgs = count( $stackTrace[1]['args'] );
for ( $i = 0; $i < $numArgs; $i++ ) {
$args[]= ErrorHandler::newArgument( "_" );
}
}
$message = preg_replace(
'/\b[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*((->|::)[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)?\\(\\)$/',
ErrorHandler::syntaxHighlightFunction( $className, $type, $functionName, $args ),
$message
);
}
} else if ( $message === 'Using $this when not in object context' ) {
$message = 'Using <span class="syntax-variable">$this</span> outside object context';
/*
* Class not found error.
*/
} else if (
strpos($message, "Class ") !== false &&
strpos($message, "not found") !== false
) {
$matches = array();
preg_match( '/\'(\\\\)?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*((\\\\)?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)+\'/', $message, $matches );
if ( count($matches) > 0 ) {
// lose the 'quotes'
$className = $matches[0];
$className = substr( $className, 1, strlen($className)-2 );
$message = preg_replace(
'/\'(\\\\)?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*((\\\\)?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)+\'/',
"<span class='syntax-class'>$className</span>",
$message
);
}
}
} else if ( $code === 2 ) {
if ( strpos($message, "Missing argument ") === 0 ) {
$message = preg_replace( '/, called in .*$/', '', $message );
$matches = array();
preg_match( ErrorHandler::REGEX_METHOD_OR_FUNCTION_END, $message, $matches );
if ( $matches ) {
$argumentMathces = array();
preg_match( '/^Missing argument ([0-9]+)/', $message, $argumentMathces );
$highlightArg = count($argumentMathces) === 2 ?
(((int) $argumentMathces[1])-1) :
null ;
$numHighlighted = 0;
$altInfo = ErrorHandler::syntaxHighlightFunctionMatch( $matches[0], $stackTrace, $highlightArg, $numHighlighted );
if ( $numHighlighted > 0 ) {
$message = preg_replace( '/^Missing argument ([0-9]+)/', 'Missing arguments ', $message );
}
if ( $altInfo ) {
$message = preg_replace( ErrorHandler::REGEX_METHOD_OR_FUNCTION_END, $altInfo, $message );
list( $srcErrFile, $srcErrLine, $stackSearchI ) = $skipStackFirst( $stackTrace );
}
}
} else if (
strpos($message, 'require(') === 0 ||
strpos($message, 'include(') === 0
) {
$endI = strpos( $message, '):' );
if ( $endI ) {
// include( is the same length
$requireLen = strlen('require(');
/*
* +2 to include the ): at the end of the string
*/
$postMessage = substr( $message, $endI+2 );
$postMessage = str_replace( 'failed to open stream: No ', 'no ', $postMessage );
$message = substr_replace( $message, $postMessage, $endI+2 );
/*
* If this string is in there, and where we think it should be,
* swap it with a shorter message.
*/
$replaceBit = 'failed to open stream: No ';
if ( strpos($message, $replaceBit) === $endI+2 ) {
$message = substr_replace( $message, 'no ', $endI+2, strlen($replaceBit) );
}
/*
* Now put the string highlighting in there.
*/
$match = substr( $message, $requireLen, $endI-$requireLen );
$newString = "<span class='syntax-string'>'$match'</span>),";
$message = substr_replace( $message, $newString, $requireLen, ($endI-$requireLen)+2 );
}
}
/*
* Unexpected symbol errors.
* For example 'unexpected T_OBJECT_OPERATOR'.
*
* This swaps the 'T_WHATEVER' for the symbolic representation.
*/
} else if ( $code === 4 ) {
if ( $message === "syntax error, unexpected T_ENCAPSED_AND_WHITESPACE" ) {
$message = "syntax error, string is not closed";
} else {
$semiColonError = false;
if ( strpos($message, 'syntax error,') === 0 && $errLine > 2 ) {
$lines = ErrorHandler::getFileContents( $errFile );
$line = $lines[$errLine-1];
if ( preg_match( ErrorHandler::REGEX_MISSING_SEMI_COLON_FOLLOWING_LINE, $line ) !== 0 ) {
$content = rtrim( join( "\n", array_slice($lines, 0, $errLine-1) ) );
if ( strrpos($content, ';') !== strlen($content)-1 ) {
$message = "Missing semi-colon";
$errLine--;
$srcErrLine = $errLine;
$semiColonError = true;
}
}
}
if ( $semiColonError ) {
$matches = array();
$num = preg_match( '/\bunexpected ([A-Z_]+|\\$end)\b/', $message, $matches );
if ( $num > 0 ) {
$match = $matches[0];
$newSymbol = ErrorHandler::phpSymbolToDescription( str_replace('unexpected ', '', $match) );
$message = str_replace( $match, "unexpected $newSymbol", $message );
}
$matches = array();
$num = preg_match( '/, expecting ([A-Z_]+|\\$end)( or ([A-Z_]+|\\$end))*/', $message, $matches );
if ( $num > 0 ) {
$match = $matches[0];
$newMatch = str_replace( ", expecting ", '', $match );
$symbols = explode( ' or ', $newMatch );
foreach ( $symbols as $i => $sym ) {
$symbols[$i] = ErrorHandler::phpSymbolToDescription( $sym );
}
$newMatch = join( ', or ', $symbols );
$message = str_replace( $match, ", expecting $newMatch", $message );
}
}
}
/**
* Undefined Variable, add syntax highlighting and make variable from 'foo' too '$foo'.
*/
} else if ( $code === 8 ) {
if (
strpos($message, "Undefined variable:") !== false
) {
$matches = array();
preg_match( ErrorHandler::REGEX_VARIABLE, $message, $matches );
if ( count($matches) > 0 ) {
$message = 'Undefined variable <span class="syntax-variable">$' . $matches[0] . '</span>' ;
}
}
/**
* Invalid type given.
*/
} else if ( $code === 4096 ) {
if ( strpos($message, 'must be an ') ) {
$message = preg_replace( '/, called in .*$/', '', $message );
$matches = array();
preg_match( ErrorHandler::REGEX_METHOD_OR_FUNCTION, $message, $matches );
if ( $matches ) {
$argumentMathces = array();
preg_match( '/^Argument ([0-9]+)/', $message, $argumentMathces );
$highlightArg = count($argumentMathces) === 2 ?
(((int) $argumentMathces[1])-1) :
null ;
$fun = ErrorHandler::syntaxHighlightFunctionMatch( $matches[0], $stackTrace, $highlightArg );
if ( $fun ) {
$message = str_replace( 'passed to ', 'calling ', $message );
$message = preg_replace( ErrorHandler::REGEX_METHOD_OR_FUNCTION, $fun, $message );
$prioritizeCaller = true;
/*
* scalars not supported.
*/
$scalarType = null;
if ( ! ErrorHandler::$IS_SCALAR_TYPE_HINTING_SUPPORTED ) {
foreach ( ErrorHandler::$SCALAR_TYPES as $scalar ) {
if ( stripos($message, "must be an instance of $scalar,") !== false ) {
$scalarType = $scalar;
break;
}
}
}
if ( $scalarType !== null ) {
$message = preg_replace( '/^Argument [0-9]+ calling /', 'Incorrect type hinting for ', $message );
$message = preg_replace(
'/ must be an instance of ' . ErrorHandler::REGEX_PHP_IDENTIFIER . '\b.*$/',
", ${scalarType} is not supported",
$message
);
$prioritizeCaller = false;
} else {
$message = preg_replace( '/ must be an (instance of )?' . ErrorHandler::REGEX_PHP_IDENTIFIER . '\b/', '', $message );
if ( preg_match('/, none given$/', $message) ) {
$message = preg_replace( '/^Argument /', 'Missing argument ', $message );
$message = preg_replace( '/, none given$/', '', $message );
} else {
$message = preg_replace( '/^Argument /', 'Incorrect argument ', $message );
}
}
if ( $prioritizeCaller ) {
list( $srcErrFile, $srcErrLine, $stackSearchI ) = $skipStackFirst( $stackTrace );
}
}
}
}
}
if ( $stackTrace !== null ) {
$isEmpty = count( $stackTrace ) === 0 ;
if ( $isEmpty ) {
array_unshift( $stackTrace, array(
'line' => $errLine,
'file' => $errFile
) );
} else if (
count($stackTrace) > 0 && (
(! isset($stackTrace[0]['line'])) ||
($stackTrace[0]['line'] !== $errLine)
)
) {
array_unshift( $stackTrace, array(
'line' => $errLine,
'file' => $errFile
) );
}
if ( $stackTrace && !$isEmpty ) {
$ignoreCommons = false;
$len = count($stackTrace);
/*
* The code above can prioritize a location in the stack trace,
* this is 'stackSearchI'. So we should start our search from there,
* and work down the stack.
*
* This is built in a way so that when it reaches the end, it'll loop
* back round to the beginning, and check the traces we didn't check
* last time.
*
* If stackSearchI was not altered, then it just searches from top
* through to the bottom.
*/
for ( $i = $stackSearchI; $i < $stackSearchI+$len; $i++ ) {
$trace = &$stackTrace[ $i % $len ];
if ( isset($trace['file']) && isset($trace['line']) ) {
list( $type, $_ ) = $this->getFolderType( $root, $trace['file'] );
if ( $type !== ErrorHandler::FILE_TYPE_IGNORE ) {
if ( $type === ErrorHandler::FILE_TYPE_APPLICATION ) {
$srcErrLine = $trace['line'];
$srcErrFile = $trace['file'];
break;
} else if ( ! $ignoreCommons ) {
$srcErrLine = $trace['line'];
$srcErrFile = $trace['file'];
$ignoreCommons = true;
}
}
}
}
}
}
return array( $message, $srcErrFile, $srcErrLine, $altInfo );
}
/**
* Parses the stack trace, and makes it look pretty.
*
* This includes adding in the syntax highlighting,
* highlighting the colours for the files,
* and padding with whitespace.
*
* If stackTrace is null, then null is returned.
*/
private function parseStackTrace( $code, $message, $errLine, $errFile, &$stackTrace, $root, $altInfo=null ) {
if ( $stackTrace !== null ) {
/*
* For whitespace padding.
*/
$lineLen = 0;
$fileLen = 0;
// parse the stack trace, and remove the long urls
foreach ( $stackTrace as $i => $trace ) {
if ( $trace ) {
if ( isset($trace['line'] ) ) {
$lineLen = max( $lineLen, strlen($trace['line']) );
} else {
$trace['line'] = '';
}
$info = '';
if ( $i === 0 && $altInfo !== null ) {
$info = $altInfo;
/*
* Skip for the first iteration,
* as it's usually magical PHP calls.
*/
} else if (
$i > 0 && (
isset($trace['class']) ||
isset($trace['type']) ||
isset($trace['function'])
)
) {
$args = array();
if ( isset($trace['args']) ) {
foreach ( $trace['args'] as $arg ) {
$args[]= ErrorHandler::identifyTypeHTML( $arg, 1 );
}
}
$info = ErrorHandler::syntaxHighlightFunction(
isset($trace['class']) ? $trace['class'] : null,
isset($trace['type']) ? $trace['type'] : null,
isset($trace['function']) ? $trace['function'] : null,
$args
);
} else if ( isset($trace['info']) && $trace['info'] !== '' ) {
$info = ErrorHandler::syntaxHighlight( $trace['info'] );
} else if ( isset($trace['file']) && !isset($trace['info']) ) {
$contents = $this->getFileContents( $trace['file'] );
if ( $contents ) {
$info = ErrorHandler::syntaxHighlight(
trim( $contents[$trace['line']-1] )
);
}
}
$trace['info'] = $info;
if ( isset($trace['file']) ) {
list( $type, $file ) = $this->getFolderType( $root, $trace['file'] );
$trace['file_type'] = $type;
$trace['is_native'] = false;
} else {
$file = '[Internal PHP]';
$trace['file_type'] = '';
$trace['is_native'] = true;
}
$trace['file'] = $file;
$fileLen = max( $fileLen, strlen($file) );
$stackTrace[$i] = $trace;
}
}
/*
* We are allowed to highlight just once, that's it.
*/
$highlightI = -1;
foreach ( $stackTrace as $i => $trace ) {
if (
$trace['line'] === $errLine &&
$trace['file'] === $errFile
) {
$highlightI = $i;
break;
}
}
foreach ( $stackTrace as $i => $trace ) {
if ( $trace ) {
// line
$line = str_pad( $trace['line'] , $lineLen, ' ', STR_PAD_LEFT );
// file
$file = $trace['file'];
$fileKlass = '';
if ( $trace['is_native'] ) {
$fileKlass = 'file-internal-php';
} else {
$fileKlass = 'filename ' . ErrorHandler::folderTypeToCSS( $trace['file_type'] );
}
$file = $file . str_pad( '', $fileLen-strlen($file), ' ', STR_PAD_LEFT );
// info
$info = $trace['info'];
if ( $info ) {
$info = str_replace( "\n", '\n', $info );
$info = str_replace( "\r", '\r', $info );
} else {
$info = '&nbsp;';
}
// line + file + info
$stackStr =
"<td class='linenumber'>$line</td>" .
"<td class='$fileKlass'>$file</td>" .
"<td class='lineinfo'>$info</td>" ;
if ( $trace['is_native'] ) {
$cssClass = 'is-native ';
} else {
$cssClass = '';
}
if ( $highlightI === $i ) {
$cssClass .= ' highlight';
} else if ( $highlightI > $i ) {
$cssClass .= ' pre-highlight';
}
if (
$i !== 0 &&
isset($trace['exception']) &&
$trace['exception']
) {
$ex = $trace['exception'];
$exHtml = '<tr class="error-stack-trace-exception"><td>' .
'exception &quot;' .
htmlspecialchars( $ex->getMessage() ) .
'&quot;' .
'</td></tr>';
} else {
$exHtml = '';
}
$data = '';
if ( isset($trace['file-lines-id']) ) {
$data = 'data-file-lines-id="' . $trace['file-lines-id'] . '"';
}
$stackTrace[$i] = "$exHtml<tr class='error-stack-trace-line $cssClass' $data>$stackStr</tr>";
}
}
return '<table id="error-stack-trace">' . join( "", $stackTrace ) . '</table>';
} else {
return null;
}
}
private function logError( $message, $file, $line, $ex=null ) {
if ( $ex ) {
$trace = $ex->getTraceAsString();
$parts = explode( "\n", $trace );
$trace = " " . join( "\n ", $parts );
if ( ! ErrorHandler::isIIS() ) {
error_log( "$message \n $file, $line \n$trace" );
}
} else {
if ( ! ErrorHandler::isIIS() ) {
error_log( "$message \n $file, $line" );
}
}
}
/**
* Given a class name, which can include a namespace,
* this will report that it is not found.
*
* This will also report it as an exception,
* so you will get a full stack trace.
*/
public function reportClassNotFound( $className ) {
throw new ErrorException( "Class '$className' not found", E_ERROR, E_ERROR, __FILE__, __LINE__ );
}
/**
* Given an exception, this will report it.
*/
public function reportException( $ex ) {
$this->reportError(
$ex->getCode(),
$ex->getMessage(),
$ex->getLine(),
$ex->getFile(),
$ex
);
}
/**
* The entry point for handling an error.
*
* This is the lowest entry point for error reporting,
* and for that reason it can either take just error info,
* or a combination of error and exception information.
*
* Note that this will still log errors in the error log
* even when it's disabled with ini. It just does nothing
* more than that.
*/
public function reportError( $code, $message, $errLine, $errFile, $ex=null ) {
$this->discardBuffer();
if (
$ex === null &&
$code === 1 &&
strpos($message, "Class ") === 0 &&
strpos($message, "not found") !== false &&
$this->classNotFoundException !== null
) {
$ex = $this->classNotFoundException;
$code = $ex->getCode();
$message = $ex->getMessage();
$errLine = $ex->getLine();
$errFile = $ex->getFile();
$stackTrace = $ex->getTrace();
}
$this->logError( $message, $errFile, $errLine, $ex );
/**
* It runs if:
* - it is globally enabled
* - this error handler is enabled
* - we believe it is a regular html request, or ajax
*/
global $_php_error_is_ini_enabled;
if (
$_php_error_is_ini_enabled &&
$this->isOn() && (
$this->isAjax ||
!$this->htmlOnly ||
!ErrorHandler::isNonPHPRequest()
)
) {
$root = $this->applicationRoot;
list( $ex, $stackTrace, $code, $errFile, $errLine ) =
$this->getStackTrace( $ex, $code, $errFile, $errLine );
list( $message, $srcErrFile, $srcErrLine, $altInfo ) =
$this->improveErrorMessage(
$ex,
$code,
$message,
$errLine,
$errFile,
$root,
$stackTrace
);
$errFile = $srcErrFile;
$errLine = $srcErrLine;
list( $fileLinesSets, $numFileLines ) = $this->generateFileLineSets( $srcErrFile, $srcErrLine, $stackTrace );
list( $type, $errFile ) = $this->getFolderType( $root, $errFile );
$errFileType = ErrorHandler::folderTypeToCSS( $type );
$stackTrace = $this->parseStackTrace( $code, $message, $errLine, $errFile, $stackTrace, $root, $altInfo );
$fileLines = $this->readCodeFile( $srcErrFile, $srcErrLine );
// load the session, if it's there
if ( isset($_COOKIE[session_name()]) && session_id() !== '' ) {
session_start();
}
$request = ErrorHandler::getRequestHeaders();
$response = ErrorHandler::getResponseHeaders();
$dump = $this->generateDumpHTML(
array(
'post' => ( isset($_POST) ? $_POST : array() ),
'get' => ( isset($_GET) ? $_GET : array() ),
'session' => ( isset($_SESSION) ? $_SESSION : array() ),
'cookies' => ( isset($_COOKIE) ? $_COOKIE : array() )
),
$request,
$response,
$_SERVER
);
$this->displayError( $message, $srcErrLine, $errFile, $errFileType, $stackTrace, $fileLinesSets, $numFileLines, $dump );
// exit in order to end processing
$this->turnOff();
exit(0);
}
}
private function getStackTrace( $ex, $code, $errFile, $errLine ) {
$stackTrace = null;
if ( $ex !== null ) {
$next = $ex;
$stackTrace = array();
$skipStacks = 0;
for (
$next = $ex;
$next !== null;
$next = $next->getPrevious()
) {
$ex = $next;
$stack = $ex->getTrace();
$file = $ex->getFile();
$line = $ex->getLine();
if ( $stackTrace !== null && count($stackTrace) > 0 ) {
$stack = array_slice( $stack, 0, count($stack)-count($stackTrace) + 1 );
}
if ( count($stack) > 0 && (
!isset($stack[0]['file']) ||
!isset($stack[0]['line']) ||
$stack[0]['file'] !== $file ||
$stack[0]['line'] !== $line
) ) {
array_unshift( $stack, array(
'file' => $file,
'line' => $line
) );
}
$stackTrace = ( $stackTrace !== null ) ?
array_merge( $stack, $stackTrace ) :
$stack ;
if ( count($stackTrace) > 0 ) {
$stackTrace[0]['exception'] = $ex;
}
}
$message = $ex->getMessage();
$errFile = $ex->getFile();
$errLine = $ex->getLine();
$code = method_exists($ex, 'getSeverity') ?
$ex->getSeverity() :
$ex->getCode() ;
}
return array( $ex, $stackTrace, $code, $errFile, $errLine );
}
private function generateDumpHTML( $arrays, $request, $response, $server ) {
$arrToHtml = function( $name, $array, $css='' ) {
$max = 0;
foreach ( $array as $e => $v ) {
$max = max( $max, strlen( $e ) );
}
$snippet = "<h2 class='error_dump_header'>$name</h2>";
foreach ( $array as $e => $v ) {
$e = str_pad( $e, $max, ' ', STR_PAD_RIGHT );
$e = htmlentities( $e );
$v = ErrorHandler::identifyTypeHTML( $v, 3 );
$snippet .= "<div class='error_dump_key'>$e</div><div class='error_dump_mapping'>=&gt;</div><div class='error_dump_value'>$v</div>";
}
return "<div class='error_dump $css'>$snippet</div>";
};
$html = '';
foreach ( $arrays as $key => $value ) {
if ( isset($value) && $value ) {
$html .= $arrToHtml( $key, $value );
} else {
unset($arrays[$key]);
}
}
return "<div class='error-dumps'>" .
$html .
$arrToHtml( 'request', $request, 'dump_request' ) .
$arrToHtml( 'response', $response, 'dump_response' ) .
$arrToHtml( 'server', $server, 'dump_server' ) .
"</div>";
}
private function generateFileLineSets( $srcErrFile, $srcErrLine, &$stackTrace ) {
$fileLineID = 1;
$srcErrID = "file-line-$fileLineID";
$fileLineID++;
$lines = $this->readCodeFile( $srcErrFile, $srcErrLine );
$minSize = count( $lines );
$fileLinesSets = array( new FileLinesSet( $srcErrLine, $srcErrID, $lines, true ) );
if ( $stackTrace ) {
foreach ( $stackTrace as $i => &$trace ) {
if ( $trace && isset($trace['file']) && isset($trace['line']) ) {
$file = $trace['file'];
$line = $trace['line'];
if ( $file === $srcErrFile && $line === $srcErrLine ) {
$trace['file-lines-id'] = $srcErrID;
} else {
$traceFileID = "file-line-$fileLineID";
$trace['file-lines-id'] = $traceFileID;
$lines = $this->readCodeFile( $file, $line );
$minSize = max( $minSize, count($lines) );
$fileLinesSets[]= new FileLinesSet( $line, $traceFileID, $lines, false );
$fileLineID++;
}
}
}
}
return array( $fileLinesSets, $minSize );
}
/*
* Even if disabled, we still act like reporting is on,
* if it's turned on.
*
* We just don't do anything.
*/
private function setEnabled( $isOn ) {
$wasOn = $this->isOn;
$this->isOn = $isOn;
global $_php_error_is_ini_enabled;
if ( $_php_error_is_ini_enabled ) {
/*
* Only turn off, if we're moving from on to off.
*
* This is so if it's turned off without turning on,
* we don't change anything.
*/
if ( !$isOn ) {
if ( $wasOn ) {
$this->runDisableErrors();
}
/*
* Always turn it on, even if already on.
*
* This is incase it was messed up in some way
* by the user.
*/
} else if ( $isOn ) {
$this->runEnableErrors();
}
}
}
private function runDisableErrors() {
global $_php_error_is_ini_enabled;
if ( $_php_error_is_ini_enabled ) {
error_reporting( $this->defaultErrorReportingOff );
@ini_restore( 'html_errors' );
if ( ErrorHandler::isIIS() ) {
@ini_restore( 'log_errors' );
}
}
}
/*
* Now the actual hooking into PHP's error reporting.
*
* We enable _ALL_ errors, and make them all exceptions.
* We also need to hook into the shutdown function so
* we can catch fatal and compile time errors.
*/
private function runEnableErrors() {
global $_php_error_is_ini_enabled;
if ( $_php_error_is_ini_enabled ) {
$catchSurpressedErrors = &$this->catchSurpressedErrors;
$self = $this;
// all errors \o/ !
error_reporting( $this->defaultErrorReportingOn );
// @ini_set( 'html_errors', false );
if ( ErrorHandler::isIIS() ) {
@ini_set( 'log_errors', false );
}
set_error_handler(
function( $code, $message, $file, $line, $context ) use ( $self, &$catchSurpressedErrors ) {
/*
* DO NOT! log the error.
*
* Either it's thrown as an exception, and so logged by the exception handler,
* or we return false, and it's logged by PHP.
*
* Also DO NOT! throw an exception, instead report it.
* This is because if an operation raises both a user AND
* fatal error (such as require), then the exception is
* silently ignored.
*/
if ( $self->isOn() ) {
/*
* Turning off 'html_errors' at this point avoids interference
* with xDebugs 'var_dump()'-overload, thus preserving prettyfied dumps
*/
@ini_set( 'html_errors', false );
/*
* When using an @, the error reporting drops to 0.
*/
if ( error_reporting() !== 0 || $catchSurpressedErrors ) {
$ex = new ErrorException( $message, $code, $code, $file, $line );
$self->reportException( $ex );
}
} else {
return false;
}
},
$this->defaultErrorReportingOn
);
set_exception_handler( function($ex) use ( $self ) {
if ( $self->isOn() ) {
$self->reportException( $ex );
} else {
return false;
}
});
if ( ! $self->isShutdownRegistered ) {
if ( $self->catchClassNotFound ) {
$classException = &$self->classNotFoundException;
$autoloaderFuns = ErrorHandler::$SAFE_AUTOLOADER_FUNCTIONS;
/*
* When this is called, the key point is that we don't error!
*
* Instead we record that an error has occurred,
* if we believe one has, and then let PHP error as normal.
* The stack trace we record is then used later.
*
* This is done for two reasons:
* - functions like 'class_exists' will run the autoloader, and we shouldn't error on them
* - on PHP 5.3.0, the class loader registered functions does *not* return closure objects, so we can't do anything clever.
*
* So we watch, but don't touch.
*/
spl_autoload_register( function($className) use ( $self, &$classException, &$autoloaderFuns ) {
if ( $self->isOn() ) {
/*
* Turning off 'html_errors' at this point avoids interference
* with xDebugs 'var_dump()'-overload, thus preserving prettyfied dumps
*/
@ini_set( 'html_errors', false );
$classException = null;
// search the stack first, to check if we are running from 'class_exists' before we error
if ( defined('DEBUG_BACKTRACE_IGNORE_ARGS') ) {
$trace = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS );
} else {
$trace = debug_backtrace();
}
$error = true;
foreach ( $trace as $row ) {
if ( isset($row['function']) ) {
$function = $row['function'];
// they are just checking, so don't error
if ( in_array($function, $autoloaderFuns, true) ) {
$error = false;
break;
// not us, and not the autoloader, so error!
} else if (
$function !== '__autoload' &&
$function !== 'spl_autoload_call' &&
strpos($function, 'php_error\\') === false
) {
break;
}
}
}
if ( $error ) {
$classException = new ErrorException( "Class '$className' not found", E_ERROR, E_ERROR, __FILE__, __LINE__ );
}
}
} );
}
$self->isShutdownRegistered = true;
}
}
}
private function displayJSInjection() {
?><script data-php_error="magic JS, just ignore this!">
"use strict";
(function( window ) {
if ( window.XMLHttpRequest ) {
/**
* A method wrapping helper function.
*
* Wraps the method given, from the old prototype to the new
* XMLHttpRequest prototype.
*
* This only happens if the old one actually has that prototype.
* If the browser doesn't support a prototype, then it doesn't
* get wrapped.
*/
var wrapMethod = function( XMLHttpRequest, old, prop ) {
if ( old.prototype[prop] ) {
var behaviours = ( arguments.length > 3 ) ?
Array.prototype.slice.call( arguments, 3 ) :
null ;
XMLHttpRequest.prototype[prop] = function() {
if ( behaviours !== null ) {
for ( var i = 0; i < behaviours.length; i++ ) {
behaviours[i].call( this, arguments, prop );
}
}
return this.__.inner[prop].apply( this.__.inner, arguments );
};
}
}
var postMethod = function( XMLHttpRequest, prop ) {
if ( XMLHttpRequest.prototype[prop] ) {
var behaviours = Array.prototype.slice.call( arguments, 2 );
var previous = XMLHttpRequest.prototype[prop];
XMLHttpRequest.prototype[prop] = function() {
var r = previous.apply( this, arguments );
for ( var i = 0; i < behaviours.length; i++ ) {
behaviours[i].call( this, arguments, prop );
}
return r;
};
}
}
/*
* Certain properties will error when read,
* and which ones do vary from browser to browser.
*
* I've found both Chrome and Firefox will error
* on _different_ properties.
*
* So every read needs to be wrapped in a try/catch,
* and just hope it doesn't error.
*/
var copyProperties = function( src, dest, props ) {
for ( var i = 0; i < props.length; i++ ) {
try {
var prop = props[i];
dest[prop] = src[prop];
} catch( ex ) { }
}
};
var copyResponseProperties = function( src, dest ) {
copyProperties( src, dest, [
'response',
'responseText',
'responseXML'
]);
}
var copyRequestProperties = function( src, dest, includeReadOnly, skipResponse ) {
copyProperties( src, dest, [
'readyState',
'timeout',
'upload',
'withCredentials',
'responseType',
'mozBackgroundRequest',
'mozArrayBuffer',
'multipart'
]);
if ( includeReadOnly ) {
copyProperties( src, dest, [
'status',
'statusText',
'channel'
]);
if ( ! skipResponse ) {
copyResponseProperties( src, dest );
}
}
return dest;
}
var runFail = function( ev ) {
var self = this;
var xmlHttpRequest = this.__.inner;
var iframe = document.createElement('iframe');
iframe.setAttribute('width', '100%');
iframe.setAttribute('height', '100%');
iframe.setAttribute('src', 'about:blank');
iframe.style.transition =
iframe.style.OTransition =
iframe.style.MsTransition =
iframe.style.MozTransition =
iframe.style.WebkitTransition = 'opacity 200ms linear';
iframe.style.background = 'transparent';
iframe.style.opacity = 0;
iframe.style.zIndex = 100001;
iframe.style.top = 0;
iframe.style.right = 0;
iframe.style.left = 0;
iframe.style.bottom = 0;
iframe.style.position = 'fixed';
var response = xmlHttpRequest.responseText;
iframe.onload = function() {
var iDoc = iframe.contentWindow || iframe.contentDocument;
if ( iDoc.document) {
iDoc = iDoc.document;
}
var iBody = iDoc.getElementsByTagName("body")[0];
iBody.innerHTML = response;
var iHead = iDoc.getElementsByTagName("head")[0];
// re-run the script tags
var scripts = iDoc.getElementsByTagName('script');
for ( var i = 0; i < scripts.length; i++ ) {
var script = scripts[i];
var parent = script.parentNode;
if ( parent ) {
parent.removeChild( script );
var newScript = iDoc.createElement('script');
newScript.innerHTML = script.innerHTML;
iHead.appendChild( newScript );
}
}
var closed = false;
var closeIFrame = function() {
if ( ! closed ) {
closed = true;
iframe.style.opacity = 0;
setTimeout( function() {
iframe.parentNode.removeChild( iframe );
}, 220 );
}
}
/*
* Retry Handler.
*
* Clear this, make a new (real) XMLHttpRequest,
* and then re-run everything.
*/
iDoc.getElementById('ajax-retry').onclick = function() {
var methodCalls = self.__.methodCalls;
initializeXMLHttpRequest.call( self );
for ( var i = 0; i < methodCalls.length; i++ ) {
var method = methodCalls[i];
self[method.method].apply( self, method.args );
}
closeIFrame();
return false;
};
/*
* The close handler.
*
* When closed, the response is cleared,
* and then the request finishes with null info.
*/
iDoc.getElementById('ajax-close').onclick = function() {
copyRequestProperties( self.__.inner, self, true );
// clear the response
self.response = '';
self.responseText = '';
self.responseXML = null;
if ( self.onreadystatechange ) {
self.onreadystatechange( ev );
}
closeIFrame();
return false;
};
var html = iDoc.getElementsByTagName('html')[0];
html.setAttribute( 'class', 'ajax' );
setTimeout( function() {
iframe.style.opacity = 1;
}, 1 );
}
/*
* Placed inside a timeout, incase the document doesn't exist yet.
*
* Can happen if the page ajax's straight away.
*/
setTimeout( function() {
var body = document.getElementsByTagName('body')[0];
body.appendChild( iframe );
}, 1 );
}
var old = window.XMLHttpRequest;
/**
* The middle man http request object.
*
* Acts just like a normal one, but will show errors if they
* occur instead of running the result.
*/
var XMLHttpRequest = function() {
initializeXMLHttpRequest.call( this );
}
var initializeXMLHttpRequest = function() {
var self = this,
inner = new old();
/**
* With a buggy XMLHttpRequest, it's possible to accidentally run the error handler
* multiple times.
*
* This is a flag to only do it once, to keep the code more defensive.
*/
var errorOnce = true,
isAjaxError = false;
var stateResults = [];
inner.onreadystatechange = function( ev ) {
copyRequestProperties( inner, self, true, true );
var state = inner.readyState;
/*
* Check headers for error.
*/
if ( ! isAjaxError && state >= 2 ) {
var header = inner.getResponseHeader( '<?php echo ErrorHandler::PHP_ERROR_MAGIC_HEADER_KEY ?>' );
if ( header !== null ) {
self.__.isAjaxError = true;
isAjaxError = true;
}
}
if ( ! isAjaxError && state >= 2 ) {
copyResponseProperties( inner, self );
}
/*
* Success ! \o/
*
* Pass any state change on to the parent caller,
* unless we hit an ajaxy error.
*/
if ( !isAjaxError && self.onreadystatechange ) {
/*
* One of three things happens:
* = cache the requests until we know there is no error (state 4)
* = we know there is no error, and so we run our cache
* = cache is done, but we've been called again, so just pass it on
*/
if ( state < 4 ) {
stateResults.push( copyRequestProperties(self, {}, true) );
} else {
if ( stateResults !== null ) {
var currentState = copyRequestProperties( self, {}, true );
for ( var i = 0; i < stateResults.length; i++ ) {
var store = stateResults[i];
copyRequestProperties( store, self, true );
// must check a second time here,
// in case it gets changed within an onreadystatechange
if ( self.onreadystatechange ) {
self.onreadystatechange( ev );
}
}
copyRequestProperties( currentState, self, true );
stateResults = null;
}
if ( self.onreadystatechange ) {
self.onreadystatechange( ev );
}
}
}
/*
* Fail : (
*/
if (
isAjaxError &&
state === 4 &&
errorOnce
) {
errorOnce = false;
runFail.call( self, ev );
}
};
copyRequestProperties( inner, this, true );
/*
* Private fields are stored underneath an unhappy face,
* to localize them.
*
* Access becomes:
* this.__.fieldName
*/
this.__ = {
methodCalls: [],
inner: inner,
isAjaxError: false,
isSynchronous: false
};
}
/*
* We build the methods for the fake XMLHttpRequest.
*/
var copyIn = function() {
copyRequestProperties( this, this.__.inner );
}
var copyOut = function() {
copyRequestProperties( this.__.inner, this, true, this.__.isSynchronous && this.__.isAjaxError );
}
var addHeader = function() {
this.__.inner.setRequestHeader( 'HTTP_X_REQUESTED_WITH', 'XMLHttpRequest' );
}
var isSynchronous = function( args ) {
this.__.isSynchronous = ( args[2] === false );
}
var saveRequest = function( args, method ) {
this.__.methodCalls.push({
method: method,
args: args
});
}
wrapMethod( XMLHttpRequest, old, 'open' , saveRequest, copyIn, isSynchronous );
wrapMethod( XMLHttpRequest, old, 'abort' , saveRequest, copyIn );
wrapMethod( XMLHttpRequest, old, 'send' , saveRequest, copyIn, addHeader );
wrapMethod( XMLHttpRequest, old, 'sendAsBinary', saveRequest, copyIn, addHeader );
postMethod( XMLHttpRequest, 'send' , copyOut );
postMethod( XMLHttpRequest, 'sendAsBinary', copyOut );
wrapMethod( XMLHttpRequest, old, 'getAllResponseHeaders', saveRequest );
wrapMethod( XMLHttpRequest, old, 'getResponseHeader' , saveRequest );
wrapMethod( XMLHttpRequest, old, 'setRequestHeader' , saveRequest );
wrapMethod( XMLHttpRequest, old, 'overrideMimeType' , saveRequest );
window.XMLHttpRequest = XMLHttpRequest;
}
})( window );
</script><?php
}
/**
* The actual display logic.
* This outputs the error details in HTML.
*/
private function displayError( $message, $errLine, $errFile, $errFileType, $stackTrace, &$fileLinesSets, $numFileLines, $dumpInfo ) {
$applicationRoot = $this->applicationRoot;
$serverName = $this->serverName;
$backgroundText = $this->backgroundText;
$displayLineNumber = $this->displayLineNumber;
/*
* When a query string is not provided,
* in some versions it's a blank string,
* whilst in others it's not set at all.
*/
if ( isset($_SERVER['QUERY_STRING']) ) {
$requestUrl = str_replace( $_SERVER['QUERY_STRING'], '', $_SERVER['REQUEST_URI'] );
$requestUrlLen = strlen( $requestUrl );
// remove the '?' if it's there (I suspect it isn't always, but don't take my word for it!)
if ( $requestUrlLen > 0 && substr($requestUrl, $requestUrlLen-1) === '?' ) {
$requestUrl = substr( $requestUrl, 0, $requestUrlLen-1 );
}
} else {
$requestUrl = $_SERVER['REQUEST_URI'];
}
$this->displayHTML(
// pre, in the head
function() use( $message, $errFile, $errLine ) {
echo "<!--\n" .
"$message\n" .
"$errFile, $errLine\n" .
"-->";
},
// the content
function() use (
$requestUrl,
$backgroundText, $serverName, $applicationRoot,
$message, $errLine, $errFile, $errFileType, $stackTrace,
&$fileLinesSets, $numFileLines,
$displayLineNumber,
$dumpInfo
) {
if ( $backgroundText ) { ?>
<div id="error-wrap">
<div id="error-back"><?php echo $backgroundText ?></div>
</div>
<?php } ?>
<h2 id="error-file-root"><?php echo $serverName ?> | <?php echo $applicationRoot ?></h2>
<h2 id="ajax-info">
<span id="ajax-tab" class="ajax-button">AJAX PAUSED</span>
<span class="ajax-url"><?php echo $serverName ?><?php echo $requestUrl ?></span>
<span class="ajax-buttons">
<a href="#" id="ajax-close" class="ajax-button">X</a>
<a href="#" id="ajax-retry" class="ajax-button">RETRY</a>
</span>
</h2>
<h1 id="error-title"><?php echo $message ?></h1>
<h2 id="error-file" class="<?php echo $fileLinesSets ? 'has_code' : '' ?>"><span id="error-linenumber"><?php echo $errLine ?></span> <span id="error-filename" class="<?php echo $errFileType ?>"><?php echo $errFile ?></span></h2>
<?php if ( $fileLinesSets ) { ?>
<div id="error-files">
<?php
foreach ( $fileLinesSets as $fileLinesSet ) {
$id = $fileLinesSet->getHTMLID();
$fileLines = $fileLinesSet->getLines();
$show = $fileLinesSet->isShown();
$highlightLine = $fileLinesSet->getLine();
// calculate last line number length
end($fileLines);
$maxLineNumber = key($fileLines);
$lineDecimals = strlen($maxLineNumber);
?>
<div id="<?php echo $id ?>" class="error-file-lines <?php echo $show ? 'show' : '' ?>">
<?php
foreach ( $fileLines as $lineNum => $origLine ) {
$line = ltrim($origLine, ' ');
$numSpaces = strlen($origLine) - strlen($line);
$size = 8*$numSpaces + 64;
$style = "style='padding-left: " . $size . "px; text-indent: -" . $size . "px;'";
for ( $i = 0; $i < $numSpaces; $i++ ) {
$line = "&nbsp;$line";
}
if ($displayLineNumber) {
$lineNumLabel = str_replace(' ', '&nbsp;', sprintf("%{$lineDecimals}d", $lineNum));
} else {
$lineNumLabel = '';
}
?><div <?php echo $style ?> class="error-file-line <?php echo ($lineNum === $highlightLine) ? 'highlight' : '' ?>">
<span class="error-file-line-number"><?php echo $lineNumLabel ?></span>
<span class="error-file-line-content"><?php echo $line ?></span>
</div>
<?php
}
?>
</div>
<?php } ?>
</div>
<?php }
if ( $stackTrace !== null ) {
echo $stackTrace;
}
if ( $dumpInfo !== null ) {
echo $dumpInfo;
}
},
/**
* Adds:
* = mouse movement for switching the code snippet in real time
*/
function() {
?><script>
"use strict";
$(document).ready( function() {
$('#ajax-close', '#ajax-retry').click( function(ev) {
ev.preventDefault();
});
if ( $('#error-files').size() > 0 && $('#error-stack-trace').size() > 0 ) {
var FADE_SPEED = 150,
lines = $('#error-files .error-file-lines'),
currentID = '#' + lines.filter( '.show' ).attr( 'id' );
var filename = $('#error-filename'),
linenumber = $('#error-linenumber');
$( '.error-stack-trace-line' ).
mouseover( function() {
var $this = $(this);
if ( ! $this.hasClass('select-highlight') ) {
$this.addClass( 'select-highlight' );
}
}).
mouseout( function(ev) {
var $this = $(this);
$this.removeClass( 'select-highlight' );
}).
click( function() {
var $this = $(this);
if ( ! $this.hasClass('highlight') && !$this.hasClass('is-native') ) {
$( '.error-stack-trace-line.highlight' ).removeClass( 'highlight' );
$this.addClass( 'highlight' );
var lineID = $this.data( 'file-lines-id' );
if ( lineID ) {
var newCurrent = '#' + lineID;
if ( newCurrent !== currentID ) {
currentID = newCurrent;
lines.removeClass( 'show' );
lines.filter( currentID ).addClass( 'show' );
var $file = $this.find('.filename');
var file = $file.text(),
line = $this.find('.linenumber').text();
filename.text( file );
filename.attr( 'class', $file.attr('class') );
linenumber.text( line );
}
}
}
});
$('#error-stack-trace').mouseleave( function() {
lines.filter('.show').removeClass( 'show' );
lines.filter( currentID ).addClass( 'show' );
});
}
} );
</script><?php
}
);
}
/**
* A generic function for clearing the buffer, and displaying error output.
*
* A function needs to be given, and then this is run at the correct time.
* There are two ways this can be used:
*
* displayHTML( $head, $body )
*
* Here 'head' is run straight after the doctype, whilst 'body' is run as
* the body for the content. The other way is:
*
* displayHTML( $body )
*
* Here there is only content.
*/
function displayHTML( Closure $head, $body=null, $javascript=null ) {
if ( func_num_args() === 2 ) {
$body = $head;
$head = null;
}
// clean out anything displayed already
try {
@ob_clean();
} catch ( Exception $ex ) { /* do nothing */ }
if (!$this->htmlOnly && ErrorHandler::isNonPHPRequest()) {
@header( "Content-Type: text/html" );
}
@header( ErrorHandler::PHP_ERROR_MAGIC_HEADER_KEY . ': ' . ErrorHandler::PHP_ERROR_MAGIC_HEADER_VALUE );
echo '<!DOCTYPE html>';
if ( $head !== null ) {
$head();
}
echo "<link href='http://fonts.googleapis.com/css?family=Droid+Sans+Mono' rel='stylesheet' type='text/css'>";
?><style>
html, body {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
}
body {
color: #f0f0f0;
tab-size: 4;
}
::-moz-selection{background: #662039 !important; color: #fff !important; text-shadow: none;}
::selection {background: #662039 !important; color: #fff !important; text-shadow: none;}
a,
.error-stack-trace-line {
-webkit-transition: color 120ms linear, background 120ms linear;
-moz-transition: color 120ms linear, background 120ms linear;
-ms-transition: color 120ms linear, background 120ms linear;
-o-transition: color 120ms linear, background 120ms linear;
transition: color 120ms linear, background 120ms linear;
}
a,
a:visited,
a:hover,
a:active {
color: #9ae;
text-decoration: none;
}
a:hover {
color: #aff;
}
h2,
.background {
font-size: 16px;
font-family: inconsolata, 'Droid Sans Mono', "DejaVu Sans Mono", consolas, monospace;
}
h1,
h2 {
font-family: "Segoe UI Light","Helvetica Neue",'RobotoLight',"Segoe UI","Segoe WP",sans-serif;
font-weight: 100;
}
h1 {
font-size: 42px;
margin-bottom: 0;
}
h2 {
font-size: 28px;
margin-top: 0;
}
.background {
width: 100%;
background: #111;
padding: 18px 24px;
-moz-box-sizing: border-box;
box-sizing: border-box;
/*
* Take over the page via CSS,
* so we block anything already rendered.
*/
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
z-index: 100000;
height: 100%;
overflow: auto;
}
html.ajax {
background: transparent;
}
html.ajax > body {
background: rgba( 0, 0, 0, 0.3 );
-moz-box-sizing: border-box;
box-sizing: border-box;
padding: 30px 48px;
}
html.ajax > body > .background {
border-radius: 4px;
box-shadow: 5px 8px 18px rgba( 0, 0, 0, 0.4 );
height: auto;
min-height: 0;
overflow: hidden;
position: relative;
top: auto;
left: auto;
right: auto;
bottom: auto;
}
#ajax-info,
.ajax-button {
font-size: 26px;
}
#ajax-info {
display: none;
position: relative;
line-height: 100%;
white-space: nowrap;
}
html.ajax #ajax-info {
display: block;
}
html.ajax #error-file-root {
display: none;
}
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<?php
/*
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<?php
/*
* Code Snippets at the top
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<?php
/*
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.error-dumps {
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padding-top: 32px;
width: 100%;
max-width: 100%;
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.error_dump {
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<?php
/*
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.pre-highlight,
.highlight {
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.pre-highlight:first-of-type .syntax-variable-not-important,
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.pre-highlight:first-of-type .syntax-variable,
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.pre-highlight:first-of-type .syntax-keyword,
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isNaN(a=parseFloat(b))?!b||b==="auto"?0:b:a},custom:function(a,c,d){function h(a){return e.step(a)}var e=this,g=f.fx;this.startTime=cq||cr(),this.end=c,this.now=this.start=a,this.pos=this.state=0,this.unit=d||this.unit||(f.cssNumber[this.prop]?"":"px"),h.queue=this.options.queue,h.elem=this.elem,h.saveState=function(){f._data(e.elem,"fxshow"+e.prop)===b&&(e.options.hide?f._data(e.elem,"fxshow"+e.prop,e.start):e.options.show&&f._data(e.elem,"fxshow"+e.prop,e.end))},h()&&f.timers.push(h)&&!co&&(co=setInterval(g.tick,g.interval))},show:function(){var a=f._data(this.elem,"fxshow"+this.prop);this.options.orig[this.prop]=a||f.style(this.elem,this.prop),this.options.show=!0,a!==b?this.custom(this.cur(),a):this.custom(this.prop==="width"||this.prop==="height"?1:0,this.cur()),f(this.elem).show()},hide:function(){this.options.orig[this.prop]=f._data(this.elem,"fxshow"+this.prop)||f.style(this.elem,this.prop),this.options.hide=!0,this.custom(this.cur(),0)},step:function(a){var b,c,d,e=cq||cr(),g=!0,h=this.elem,i=this.options;if(a||e>=i.duration+this.startTime){this.now=this.end,this.pos=this.state=1,this.update(),i.animatedProperties[this.prop]=!0;for(b in i.animatedProperties)i.animatedProperties[b]!==!0&&(g=!1);if(g){i.overflow!=null&&!f.support.shrinkWrapBlocks&&f.each(["","X","Y"],function(a,b){h.style["overflow"+b]=i.overflow[a]}),i.hide&&f(h).hide();if(i.hide||i.show)for(b in i.animatedProperties)f.style(h,b,i.orig[b]),f.removeData(h,"fxshow"+b,!0),f.removeData(h,"toggle"+b,!0);d=i.complete,d&&(i.complete=!1,d.call(h))}return!1}i.duration==Infinity?this.now=e:(c=e-this.startTime,this.state=c/i.duration,this.pos=f.easing[i.animatedProperties[this.prop]](this.state,c,0,1,i.duration),this.now=this.start+(this.end-this.start)*this.pos),this.update();return!0}},f.extend(f.fx,{tick:function(){var a,b=f.timers,c=0;for(;c<b.length;c++)a=b[c],!a()&&b[c]===a&&b.splice(c--,1);b.length||f.fx.stop()},interval:13,stop:function(){clearInterval(co),co=null},speeds:{slow:600,fast:200,_default:400},step:{opacity:function(a){f.style(a.elem,"opacity",a.now)},_default:function(a){a.elem.style&&a.elem.style[a.prop]!=null?a.elem.style[a.prop]=a.now+a.unit:a.elem[a.prop]=a.now}}}),f.each(cp.concat.apply([],cp),function(a,b){b.indexOf("margin")&&(f.fx.step[b]=function(a){f.style(a.elem,b,Math.max(0,a.now)+a.unit)})}),f.expr&&f.expr.filters&&(f.expr.filters.animated=function(a){return f.grep(f.timers,function(b){return a===b.elem}).length});var cv,cw=/^t(?:able|d|h)$/i,cx=/^(?:body|html)$/i;"getBoundingClientRect"in c.documentElement?cv=function(a,b,c,d){try{d=a.getBoundingClientRect()}catch(e){}if(!d||!f.contains(c,a))return d?{top:d.top,left:d.left}:{top:0,left:0};var g=b.body,h=cy(b),i=c.clientTop||g.clientTop||0,j=c.clientLeft||g.clientLeft||0,k=h.pageYOffset||f.support.boxModel&&c.scrollTop||g.scrollTop,l=h.pageXOffset||f.support.boxModel&&c.scrollLeft||g.scrollLeft,m=d.top+k-i,n=d.left+l-j;return{top:m,left:n}}:cv=function(a,b,c){var d,e=a.offsetParent,g=a,h=b.body,i=b.defaultView,j=i?i.getComputedStyle(a,null):a.currentStyle,k=a.offsetTop,l=a.offsetLeft;while((a=a.parentNode)&&a!==h&&a!==c){if(f.support.fixedPosition&&j.position==="fixed")break;d=i?i.getComputedStyle(a,null):a.currentStyle,k-=a.scrollTop,l-=a.scrollLeft,a===e&&(k+=a.offsetTop,l+=a.offsetLeft,f.support.doesNotAddBorder&&(!f.support.doesAddBorderForTableAndCells||!cw.test(a.nodeName))&&(k+=parseFloat(d.borderTopWidth)||0,l+=parseFloat(d.borderLeftWidth)||0),g=e,e=a.offsetParent),f.support.subtractsBorderForOverflowNotVisible&&d.overflow!=="visible"&&(k+=parseFloat(d.borderTopWidth)||0,l+=parseFloat(d.borderLeftWidth)||0),j=d}if(j.position==="relative"||j.position==="static")k+=h.offsetTop,l+=h.offsetLeft;f.support.fixedPosition&&j.position==="fixed"&&(k+=Math.max(c.scrollTop,h.scrollTop),l+=Math.max(c.scrollLeft,h.scrollLeft));return{top:k,left:l}},f.fn.offset=function(a){if(arguments.length)return a===b?this:this.each(function(b){f.offset.setOffset(this,a,b)});var c=this[0],d=c&&c.ownerDocument;if(!d)return null;if(c===d.body)return f.offset.bodyOffset(c);return cv(c,d,d.documentElement)},f.offset={bodyOffset:function(a){var b=a.offsetTop,c=a.offsetLeft;f.support.doesNotIncludeMarginInBodyOffset&&(b+=parseFloat(f.css(a,"marginTop"))||0,c+=parseFloat(f.css(a,"marginLeft"))||0);return{top:b,left:c}},setOffset:function(a,b,c){var d=f.css(a,"position");d==="static"&&(a.style.position="relative");var e=f(a),g=e.offset(),h=f.css(a,"top"),i=f.css(a,"left"),j=(d==="absolute"||d==="fixed")&&f.inArray("auto",[h,i])>-1,k={},l={},m,n;j?(l=e.position(),m=l.top,n=l.left):(m=parseFloat(h)||0,n=parseFloat(i)||0),f.isFunction(b)&&(b=b.call(a,c,g)),b.top!=null&&(k.top=b.top-g.top+m),b.left!=null&&(k.left=b.left-g.left+n),"using"in b?b.using.call(a,k):e.css(k)}},f.fn.extend({position:function(){if(!this[0])return null;var a=this[0],b=this.offsetParent(),c=this.offset(),d=cx.test(b[0].nodeName)?{top:0,left:0}:b.offset();c.top-=parseFloat(f.css(a,"marginTop"))||0,c.left-=parseFloat(f.css(a,"marginLeft"))||0,d.top+=parseFloat(f.css(b[0],"borderTopWidth"))||0,d.left+=parseFloat(f.css(b[0],"borderLeftWidth"))||0;return{top:c.top-d.top,left:c.left-d.left}},offsetParent:function(){return this.map(function(){var a=this.offsetParent||c.body;while(a&&!cx.test(a.nodeName)&&f.css(a,"position")==="static")a=a.offsetParent;return a})}}),f.each({scrollLeft:"pageXOffset",scrollTop:"pageYOffset"},function(a,c){var d=/Y/.test(c);f.fn[a]=function(e){return f.access(this,function(a,e,g){var h=cy(a);if(g===b)return h?c in h?h[c]:f.support.boxModel&&h.document.documentElement[e]||h.document.body[e]:a[e];h?h.scrollTo(d?f(h).scrollLeft():g,d?g:f(h).scrollTop()):a[e]=g},a,e,arguments.length,null)}}),f.each({Height:"height",Width:"width"},function(a,c){var d="client"+a,e="scroll"+a,g="offset"+a;f.fn["inner"+a]=function(){var a=this[0];return a?a.style?parseFloat(f.css(a,c,"padding")):this[c]():null},f.fn["outer"+a]=function(a){var b=this[0];return b?b.style?parseFloat(f.css(b,c,a?"margin":"border")):this[c]():null},f.fn[c]=function(a){return f.access(this,function(a,c,h){var i,j,k,l;if(f.isWindow(a)){i=a.document,j=i.documentElement[d];return f.support.boxModel&&j||i.body&&i.body[d]||j}if(a.nodeType===9){i=a.documentElement;if(i[d]>=i[e])return i[d];return Math.max(a.body[e],i[e],a.body[g],i[g])}if(h===b){k=f.css(a,c),l=parseFloat(k);return f.isNumeric(l)?l:k}f(a).css(c,h)},c,a,arguments.length,null)}}),a.jQuery=a.$=f,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return f})})(window);
</script><?php
if ( $javascript ) {
$javascript();
}
}
}
/**
* This is a carbon copy of \ErrorException.
* However that is only supported in PHP 5.1 and above,
* so this allows PHP Error to work in PHP 5.0.
*
* A thin class that wraps up an error, into an exception.
*/
class ErrorException extends Exception
{
public function __construct( $message, $code, $severity, $file, $line )
{
parent::__construct( $message, $code, null );
$this->file = $file;
$this->line = $line;
}
}
/**
* Code is outputted multiple times, for each file involved.
* This allows us to wrap up a single set of code.
*/
class FileLinesSet
{
private $id;
private $lines;
private $isShown;
private $line;
public function __construct( $line, $id, array $lines, $isShown ) {
$this->id = $id;
$this->lines = $lines;
$this->isShown = $isShown;
$this->line = $line;
}
public function getHTMLID() {
return $this->id;
}
public function getLines() {
return $this->lines;
}
public function isShown() {
return $this->isShown;
}
public function getLine() {
return $this->line;
}
}
/**
* jsmin.php - PHP implementation of Douglas Crockford's JSMin.
*
* This is pretty much a direct port of jsmin.c to PHP with just a few
* PHP-specific performance tweaks. Also, whereas jsmin.c reads from stdin and
* outputs to stdout, this library accepts a string as input and returns another
* string as output.
*
* PHP 5 or higher is required.
*
* Permission is hereby granted to use this version of the library under the
* same terms as jsmin.c, which has the following license:
*
* --
* Copyright (c) 2002 Douglas Crockford (www.crockford.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* The Software shall be used for Good, not Evil.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* --
*
* @package JSMin
* @author Ryan Grove <ryan@wonko.com>
* @copyright 2002 Douglas Crockford <douglas@crockford.com> (jsmin.c)
* @copyright 2008 Ryan Grove <ryan@wonko.com> (PHP port)
* @copyright 2012 Adam Goforth <aag@adamgoforth.com> (Updates)
* @license http://opensource.org/licenses/mit-license.php MIT License
* @version 1.1.2 (2012-05-01)
* @link https://github.com/rgrove/jsmin-php
*/
class JSMin
{
const ORD_LF = 10;
const ORD_SPACE = 32;
const ACTION_KEEP_A = 1;
const ACTION_DELETE_A = 2;
const ACTION_DELETE_A_B = 3;
protected $a = '';
protected $b = '';
protected $input = '';
protected $inputIndex = 0;
protected $inputLength = 0;
protected $lookAhead = null;
protected $output = '';
// -- Public Static Methods --------------------------------------------------
/**
* Minify Javascript
*
* @uses __construct()
* @uses min()
* @param string $js Javascript to be minified
* @return string
*/
public static function minify($js) {
$jsmin = new JSMin($js);
return $jsmin->min();
}
// -- Public Instance Methods ------------------------------------------------
/**
* Constructor
*
* @param string $input Javascript to be minified
*/
public function __construct($input) {
$this->input = str_replace("\r\n", "\n", $input);
$this->inputLength = strlen($this->input);
}
// -- Protected Instance Methods ---------------------------------------------
/**
* Action -- do something! What to do is determined by the $command argument.
*
* action treats a string as a single character. Wow!
* action recognizes a regular expression if it is preceded by ( or , or =.
*
* @uses next()
* @uses get()
* @throws JSMinException If parser errors are found:
* - Unterminated string literal
* - Unterminated regular expression set in regex literal
* - Unterminated regular expression literal
* @param int $command One of class constants:
* ACTION_KEEP_A Output A. Copy B to A. Get the next B.
* ACTION_DELETE_A Copy B to A. Get the next B. (Delete A).
* ACTION_DELETE_A_B Get the next B. (Delete B).
*/
protected function action($command) {
switch($command) {
case self::ACTION_KEEP_A:
$this->output .= $this->a;
case self::ACTION_DELETE_A:
$this->a = $this->b;
if ($this->a === "'" || $this->a === '"') {
for (;;) {
$this->output .= $this->a;
$this->a = $this->get();
if ($this->a === $this->b) {
break;
}
if (ord($this->a) <= self::ORD_LF) {
throw new JSMinException('Unterminated string literal.');
}
if ($this->a === '\\') {
$this->output .= $this->a;
$this->a = $this->get();
}
}
}
case self::ACTION_DELETE_A_B:
$this->b = $this->next();
if ($this->b === '/' && (
$this->a === '(' || $this->a === ',' || $this->a === '=' ||
$this->a === ':' || $this->a === '[' || $this->a === '!' ||
$this->a === '&' || $this->a === '|' || $this->a === '?' ||
$this->a === '{' || $this->a === '}' || $this->a === ';' ||
$this->a === "\n" )) {
$this->output .= $this->a . $this->b;
for (;;) {
$this->a = $this->get();
if ($this->a === '[') {
/*
inside a regex [...] set, which MAY contain a '/' itself. Example: mootools Form.Validator near line 460:
return Form.Validator.getValidator('IsEmpty').test(element) || (/^(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]\.?){0,63}[a-z0-9!#$%&'*+/=?^_`{|}~-]@(?:(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)*[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\])$/i).test(element.get('value'));
*/
for (;;) {
$this->output .= $this->a;
$this->a = $this->get();
if ($this->a === ']') {
break;
} elseif ($this->a === '\\') {
$this->output .= $this->a;
$this->a = $this->get();
} elseif (ord($this->a) <= self::ORD_LF) {
throw new JSMinException('Unterminated regular expression set in regex literal.');
}
}
} elseif ($this->a === '/') {
break;
} elseif ($this->a === '\\') {
$this->output .= $this->a;
$this->a = $this->get();
} elseif (ord($this->a) <= self::ORD_LF) {
throw new JSMinException('Unterminated regular expression literal.');
}
$this->output .= $this->a;
}
$this->b = $this->next();
}
}
}
/**
* Get next char. Convert ctrl char to space.
*
* @return string|null
*/
protected function get() {
$c = $this->lookAhead;
$this->lookAhead = null;
if ($c === null) {
if ($this->inputIndex < $this->inputLength) {
$c = substr($this->input, $this->inputIndex, 1);
$this->inputIndex += 1;
} else {
$c = null;
}
}
if ($c === "\r") {
return "\n";
}
if ($c === null || $c === "\n" || ord($c) >= self::ORD_SPACE) {
return $c;
}
return ' ';
}
/**
* Is $c a letter, digit, underscore, dollar sign, or non-ASCII character.
*
* @return bool
*/
protected function isAlphaNum($c) {
return ord($c) > 126 || $c === '\\' || preg_match('/^[\w\$]$/', $c) === 1;
}
/**
* Perform minification, return result
*
* @uses action()
* @uses isAlphaNum()
* @uses get()
* @uses peek()
* @return string
*/
protected function min() {
if (0 == strncmp($this->peek(), "\xef", 1)) {
$this->get();
$this->get();
$this->get();
}
$this->a = "\n";
$this->action(self::ACTION_DELETE_A_B);
while ($this->a !== null) {
switch ($this->a) {
case ' ':
if ($this->isAlphaNum($this->b)) {
$this->action(self::ACTION_KEEP_A);
} else {
$this->action(self::ACTION_DELETE_A);
}
break;
case "\n":
switch ($this->b) {
case '{':
case '[':
case '(':
case '+':
case '-':
case '!':
case '~':
$this->action(self::ACTION_KEEP_A);
break;
case ' ':
$this->action(self::ACTION_DELETE_A_B);
break;
default:
if ($this->isAlphaNum($this->b)) {
$this->action(self::ACTION_KEEP_A);
}
else {
$this->action(self::ACTION_DELETE_A);
}
}
break;
default:
switch ($this->b) {
case ' ':
if ($this->isAlphaNum($this->a)) {
$this->action(self::ACTION_KEEP_A);
break;
}
$this->action(self::ACTION_DELETE_A_B);
break;
case "\n":
switch ($this->a) {
case '}':
case ']':
case ')':
case '+':
case '-':
case '"':
case "'":
$this->action(self::ACTION_KEEP_A);
break;
default:
if ($this->isAlphaNum($this->a)) {
$this->action(self::ACTION_KEEP_A);
}
else {
$this->action(self::ACTION_DELETE_A_B);
}
}
break;
default:
$this->action(self::ACTION_KEEP_A);
break;
}
}
}
return $this->output;
}
/**
* Get the next character, skipping over comments. peek() is used to see
* if a '/' is followed by a '/' or '*'.
*
* @uses get()
* @uses peek()
* @throws JSMinException On unterminated comment.
* @return string
*/
protected function next() {
$c = $this->get();
if ($c === '/') {
switch($this->peek()) {
case '/':
for (;;) {
$c = $this->get();
if (ord($c) <= self::ORD_LF) {
return $c;
}
}
case '*':
$this->get();
for (;;) {
switch($this->get()) {
case '*':
if ($this->peek() === '/') {
$this->get();
return ' ';
}
break;
case null:
throw new JSMinException('Unterminated comment.');
}
}
default:
return $c;
}
}
return $c;
}
/**
* Get next char. If is ctrl character, translate to a space or newline.
*
* @uses get()
* @return string|null
*/
protected function peek() {
$this->lookAhead = $this->get();
return $this->lookAhead;
}
}
// -- Exceptions ---------------------------------------------------------------
class JSMinException extends Exception {}
if (
$_php_error_is_ini_enabled &&
$_php_error_global_handler === null &&
@get_cfg_var('php_error.autorun')
) {
reportErrors();
}
}
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