diff --git a/extlib/PEAR.php b/extlib/PEAR.php index 4c24c6006a..fec8de45cc 100644 --- a/extlib/PEAR.php +++ b/extlib/PEAR.php @@ -6,21 +6,15 @@ * * PHP versions 4 and 5 * - * LICENSE: This source file is subject to version 3.0 of the PHP license - * that is available through the world-wide-web at the following URI: - * http://www.php.net/license/3_0.txt. If you did not receive a copy of - * the PHP License and are unable to obtain it through the web, please - * send a note to license@php.net so we can mail you a copy immediately. - * * @category pear * @package PEAR * @author Sterling Hughes * @author Stig Bakken * @author Tomas V.V.Cox * @author Greg Beaver - * @copyright 1997-2008 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version CVS: $Id: PEAR.php,v 1.104 2008/01/03 20:26:34 cellog Exp $ + * @copyright 1997-2010 The Authors + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version CVS: $Id: PEAR.php 307683 2011-01-23 21:56:12Z dufuz $ * @link http://pear.php.net/package/PEAR * @since File available since Release 0.1 */ @@ -52,15 +46,6 @@ if (substr(PHP_OS, 0, 3) == 'WIN') { define('PEAR_OS', 'Unix'); // blatant assumption } -// instant backwards compatibility -if (!defined('PATH_SEPARATOR')) { - if (OS_WINDOWS) { - define('PATH_SEPARATOR', ';'); - } else { - define('PATH_SEPARATOR', ':'); - } -} - $GLOBALS['_PEAR_default_error_mode'] = PEAR_ERROR_RETURN; $GLOBALS['_PEAR_default_error_options'] = E_USER_NOTICE; $GLOBALS['_PEAR_destructor_object_list'] = array(); @@ -92,8 +77,8 @@ $GLOBALS['_PEAR_error_handler_stack'] = array(); * @author Tomas V.V. Cox * @author Greg Beaver * @copyright 1997-2006 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version Release: 1.7.2 + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version Release: 1.9.2 * @link http://pear.php.net/package/PEAR * @see PEAR_Error * @since Class available since PHP 4.0.2 @@ -101,8 +86,6 @@ $GLOBALS['_PEAR_error_handler_stack'] = array(); */ class PEAR { - // {{{ properties - /** * Whether to enable internal debug messages. * @@ -153,10 +136,6 @@ class PEAR */ var $_expected_errors = array(); - // }}} - - // {{{ constructor - /** * Constructor. Registers this object in * $_PEAR_destructor_object_list for destructor emulation if a @@ -173,9 +152,11 @@ class PEAR if ($this->_debug) { print "PEAR constructor called, class=$classname\n"; } + if ($error_class !== null) { $this->_error_class = $error_class; } + while ($classname && strcasecmp($classname, "pear")) { $destructor = "_$classname"; if (method_exists($this, $destructor)) { @@ -192,9 +173,6 @@ class PEAR } } - // }}} - // {{{ destructor - /** * Destructor (the emulated type of...). Does nothing right now, * but is included for forward compatibility, so subclass @@ -212,9 +190,6 @@ class PEAR } } - // }}} - // {{{ getStaticProperty() - /** * If you have a class that's mostly/entirely static, and you need static * properties, you can use this method to simulate them. Eg. in your method(s) @@ -233,15 +208,14 @@ class PEAR if (!isset($properties[$class])) { $properties[$class] = array(); } + if (!array_key_exists($var, $properties[$class])) { $properties[$class][$var] = null; } + return $properties[$class][$var]; } - // }}} - // {{{ registerShutdownFunc() - /** * Use this function to register a shutdown method for static * classes. @@ -262,9 +236,6 @@ class PEAR $GLOBALS['_PEAR_shutdown_funcs'][] = array($func, $args); } - // }}} - // {{{ isError() - /** * Tell whether a value is a PEAR error. * @@ -278,20 +249,18 @@ class PEAR */ function isError($data, $code = null) { - if (is_a($data, 'PEAR_Error')) { - if (is_null($code)) { - return true; - } elseif (is_string($code)) { - return $data->getMessage() == $code; - } else { - return $data->getCode() == $code; - } + if (!is_a($data, 'PEAR_Error')) { + return false; } - return false; - } - // }}} - // {{{ setErrorHandling() + if (is_null($code)) { + return true; + } elseif (is_string($code)) { + return $data->getMessage() == $code; + } + + return $data->getCode() == $code; + } /** * Sets how errors generated by this object should be handled. @@ -331,7 +300,6 @@ class PEAR * * @since PHP 4.0.5 */ - function setErrorHandling($mode = null, $options = null) { if (isset($this) && is_a($this, 'PEAR')) { @@ -369,9 +337,6 @@ class PEAR } } - // }}} - // {{{ expectError() - /** * This method is used to tell which errors you expect to get. * Expected errors are always returned with error mode @@ -394,12 +359,9 @@ class PEAR } else { array_push($this->_expected_errors, array($code)); } - return sizeof($this->_expected_errors); + return count($this->_expected_errors); } - // }}} - // {{{ popExpect() - /** * This method pops one element off the expected error codes * stack. @@ -411,9 +373,6 @@ class PEAR return array_pop($this->_expected_errors); } - // }}} - // {{{ _checkDelExpect() - /** * This method checks unsets an error code if available * @@ -425,8 +384,7 @@ class PEAR function _checkDelExpect($error_code) { $deleted = false; - - foreach ($this->_expected_errors AS $key => $error_array) { + foreach ($this->_expected_errors as $key => $error_array) { if (in_array($error_code, $error_array)) { unset($this->_expected_errors[$key][array_search($error_code, $error_array)]); $deleted = true; @@ -437,12 +395,10 @@ class PEAR unset($this->_expected_errors[$key]); } } + return $deleted; } - // }}} - // {{{ delExpect() - /** * This method deletes all occurences of the specified element from * the expected error codes stack. @@ -455,34 +411,26 @@ class PEAR function delExpect($error_code) { $deleted = false; - if ((is_array($error_code) && (0 != count($error_code)))) { - // $error_code is a non-empty array here; - // we walk through it trying to unset all - // values - foreach($error_code as $key => $error) { - if ($this->_checkDelExpect($error)) { - $deleted = true; - } else { - $deleted = false; - } + // $error_code is a non-empty array here; we walk through it trying + // to unset all values + foreach ($error_code as $key => $error) { + $deleted = $this->_checkDelExpect($error) ? true : false; } + return $deleted ? true : PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME } elseif (!empty($error_code)) { // $error_code comes alone, trying to unset it if ($this->_checkDelExpect($error_code)) { return true; - } else { - return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME } - } else { - // $error_code is empty - return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME - } - } - // }}} - // {{{ raiseError() + return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME + } + + // $error_code is empty + return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME + } /** * This method is a wrapper that returns an instance of the @@ -538,13 +486,20 @@ class PEAR $message = $message->getMessage(); } - if (isset($this) && isset($this->_expected_errors) && sizeof($this->_expected_errors) > 0 && sizeof($exp = end($this->_expected_errors))) { + if ( + isset($this) && + isset($this->_expected_errors) && + count($this->_expected_errors) > 0 && + count($exp = end($this->_expected_errors)) + ) { if ($exp[0] == "*" || (is_int(reset($exp)) && in_array($code, $exp)) || - (is_string(reset($exp)) && in_array($message, $exp))) { + (is_string(reset($exp)) && in_array($message, $exp)) + ) { $mode = PEAR_ERROR_RETURN; } } + // No mode given, try global ones if ($mode === null) { // Class error handler @@ -565,46 +520,52 @@ class PEAR } else { $ec = 'PEAR_Error'; } + if (intval(PHP_VERSION) < 5) { // little non-eval hack to fix bug #12147 include 'PEAR/FixPHP5PEARWarnings.php'; return $a; } + if ($skipmsg) { $a = new $ec($code, $mode, $options, $userinfo); } else { $a = new $ec($message, $code, $mode, $options, $userinfo); } + return $a; } - // }}} - // {{{ throwError() - /** * Simpler form of raiseError with fewer options. In most cases * message, code and userinfo are enough. * - * @param string $message + * @param mixed $message a text error message or a PEAR error object * + * @param int $code a numeric error code (it is up to your class + * to define these if you want to use codes) + * + * @param string $userinfo If you need to pass along for example debug + * information, this parameter is meant for that. + * + * @access public + * @return object a PEAR error object + * @see PEAR::raiseError */ - function &throwError($message = null, - $code = null, - $userinfo = null) + function &throwError($message = null, $code = null, $userinfo = null) { if (isset($this) && is_a($this, 'PEAR')) { $a = &$this->raiseError($message, $code, null, null, $userinfo); return $a; - } else { - $a = &PEAR::raiseError($message, $code, null, null, $userinfo); - return $a; } + + $a = &PEAR::raiseError($message, $code, null, null, $userinfo); + return $a; } - // }}} function staticPushErrorHandling($mode, $options = null) { - $stack = &$GLOBALS['_PEAR_error_handler_stack']; + $stack = &$GLOBALS['_PEAR_error_handler_stack']; $def_mode = &$GLOBALS['_PEAR_default_error_mode']; $def_options = &$GLOBALS['_PEAR_default_error_options']; $stack[] = array($def_mode, $def_options); @@ -673,8 +634,6 @@ class PEAR return true; } - // {{{ pushErrorHandling() - /** * Push a new error handler on top of the error handler options stack. With this * you can easily override the actual error handler for some code and restore @@ -708,9 +667,6 @@ class PEAR return true; } - // }}} - // {{{ popErrorHandling() - /** * Pop the last error handler used * @@ -732,9 +688,6 @@ class PEAR return true; } - // }}} - // {{{ loadExtension() - /** * OS independant PHP extension load. Remember to take care * on the correct extension name for case sensitive OSes. @@ -744,31 +697,38 @@ class PEAR */ function loadExtension($ext) { - if (!extension_loaded($ext)) { - // if either returns true dl() will produce a FATAL error, stop that - if ((ini_get('enable_dl') != 1) || (ini_get('safe_mode') == 1)) { - return false; - } - if (OS_WINDOWS) { - $suffix = '.dll'; - } elseif (PHP_OS == 'HP-UX') { - $suffix = '.sl'; - } elseif (PHP_OS == 'AIX') { - $suffix = '.a'; - } elseif (PHP_OS == 'OSX') { - $suffix = '.bundle'; - } else { - $suffix = '.so'; - } - return @dl('php_'.$ext.$suffix) || @dl($ext.$suffix); + if (extension_loaded($ext)) { + return true; } - return true; - } - // }}} + // if either returns true dl() will produce a FATAL error, stop that + if ( + function_exists('dl') === false || + ini_get('enable_dl') != 1 || + ini_get('safe_mode') == 1 + ) { + return false; + } + + if (OS_WINDOWS) { + $suffix = '.dll'; + } elseif (PHP_OS == 'HP-UX') { + $suffix = '.sl'; + } elseif (PHP_OS == 'AIX') { + $suffix = '.a'; + } elseif (PHP_OS == 'OSX') { + $suffix = '.bundle'; + } else { + $suffix = '.so'; + } + + return @dl('php_'.$ext.$suffix) || @dl($ext.$suffix); + } } -// {{{ _PEAR_call_destructors() +if (PEAR_ZE2) { + include_once 'PEAR5.php'; +} function _PEAR_call_destructors() { @@ -777,9 +737,16 @@ function _PEAR_call_destructors() sizeof($_PEAR_destructor_object_list)) { reset($_PEAR_destructor_object_list); - if (PEAR::getStaticProperty('PEAR', 'destructlifo')) { + if (PEAR_ZE2) { + $destructLifoExists = PEAR5::getStaticProperty('PEAR', 'destructlifo'); + } else { + $destructLifoExists = PEAR::getStaticProperty('PEAR', 'destructlifo'); + } + + if ($destructLifoExists) { $_PEAR_destructor_object_list = array_reverse($_PEAR_destructor_object_list); } + while (list($k, $objref) = each($_PEAR_destructor_object_list)) { $classname = get_class($objref); while ($classname) { @@ -798,14 +765,17 @@ function _PEAR_call_destructors() } // Now call the shutdown functions - if (is_array($GLOBALS['_PEAR_shutdown_funcs']) AND !empty($GLOBALS['_PEAR_shutdown_funcs'])) { + if ( + isset($GLOBALS['_PEAR_shutdown_funcs']) && + is_array($GLOBALS['_PEAR_shutdown_funcs']) && + !empty($GLOBALS['_PEAR_shutdown_funcs']) + ) { foreach ($GLOBALS['_PEAR_shutdown_funcs'] as $value) { call_user_func_array($value[0], $value[1]); } } } -// }}} /** * Standard PEAR error class for PHP 4 * @@ -817,16 +787,14 @@ function _PEAR_call_destructors() * @author Tomas V.V. Cox * @author Gregory Beaver * @copyright 1997-2006 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version Release: 1.7.2 + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version Release: 1.9.2 * @link http://pear.php.net/manual/en/core.pear.pear-error.php * @see PEAR::raiseError(), PEAR::throwError() * @since Class available since PHP 4.0.2 */ class PEAR_Error { - // {{{ properties - var $error_message_prefix = ''; var $mode = PEAR_ERROR_RETURN; var $level = E_USER_NOTICE; @@ -835,9 +803,6 @@ class PEAR_Error var $userinfo = ''; var $backtrace = null; - // }}} - // {{{ constructor - /** * PEAR_Error constructor * @@ -868,12 +833,20 @@ class PEAR_Error $this->code = $code; $this->mode = $mode; $this->userinfo = $userinfo; - if (!PEAR::getStaticProperty('PEAR_Error', 'skiptrace')) { + + if (PEAR_ZE2) { + $skiptrace = PEAR5::getStaticProperty('PEAR_Error', 'skiptrace'); + } else { + $skiptrace = PEAR::getStaticProperty('PEAR_Error', 'skiptrace'); + } + + if (!$skiptrace) { $this->backtrace = debug_backtrace(); if (isset($this->backtrace[0]) && isset($this->backtrace[0]['object'])) { unset($this->backtrace[0]['object']); } } + if ($mode & PEAR_ERROR_CALLBACK) { $this->level = E_USER_NOTICE; $this->callback = $options; @@ -881,20 +854,25 @@ class PEAR_Error if ($options === null) { $options = E_USER_NOTICE; } + $this->level = $options; $this->callback = null; } + if ($this->mode & PEAR_ERROR_PRINT) { if (is_null($options) || is_int($options)) { $format = "%s"; } else { $format = $options; } + printf($format, $this->getMessage()); } + if ($this->mode & PEAR_ERROR_TRIGGER) { trigger_error($this->getMessage(), $this->level); } + if ($this->mode & PEAR_ERROR_DIE) { $msg = $this->getMessage(); if (is_null($options) || is_int($options)) { @@ -907,47 +885,39 @@ class PEAR_Error } die(sprintf($format, $msg)); } - if ($this->mode & PEAR_ERROR_CALLBACK) { - if (is_callable($this->callback)) { - call_user_func($this->callback, $this); - } + + if ($this->mode & PEAR_ERROR_CALLBACK && is_callable($this->callback)) { + call_user_func($this->callback, $this); } + if ($this->mode & PEAR_ERROR_EXCEPTION) { trigger_error("PEAR_ERROR_EXCEPTION is obsolete, use class PEAR_Exception for exceptions", E_USER_WARNING); eval('$e = new Exception($this->message, $this->code);throw($e);'); } } - // }}} - // {{{ getMode() - /** * Get the error mode from an error object. * * @return int error mode * @access public */ - function getMode() { + function getMode() + { return $this->mode; } - // }}} - // {{{ getCallback() - /** * Get the callback function/method from an error object. * * @return mixed callback function or object/method array * @access public */ - function getCallback() { + function getCallback() + { return $this->callback; } - // }}} - // {{{ getMessage() - - /** * Get the error message from an error object. * @@ -959,10 +929,6 @@ class PEAR_Error return ($this->error_message_prefix . $this->message); } - - // }}} - // {{{ getCode() - /** * Get error code from an error object * @@ -974,9 +940,6 @@ class PEAR_Error return $this->code; } - // }}} - // {{{ getType() - /** * Get the name of this error/exception. * @@ -988,9 +951,6 @@ class PEAR_Error return get_class($this); } - // }}} - // {{{ getUserInfo() - /** * Get additional user-supplied information. * @@ -1002,9 +962,6 @@ class PEAR_Error return $this->userinfo; } - // }}} - // {{{ getDebugInfo() - /** * Get additional debug information supplied by the application. * @@ -1016,9 +973,6 @@ class PEAR_Error return $this->getUserInfo(); } - // }}} - // {{{ getBacktrace() - /** * Get the call backtrace from where the error was generated. * Supported with PHP 4.3.0 or newer. @@ -1038,9 +992,6 @@ class PEAR_Error return $this->backtrace[$frame]; } - // }}} - // {{{ addUserInfo() - function addUserInfo($info) { if (empty($this->userinfo)) { @@ -1050,14 +1001,10 @@ class PEAR_Error } } - // }}} - // {{{ toString() function __toString() { return $this->getMessage(); } - // }}} - // {{{ toString() /** * Make a string representation of this object. @@ -1065,7 +1012,8 @@ class PEAR_Error * @return string a string with an object summary * @access public */ - function toString() { + function toString() + { $modes = array(); $levels = array(E_USER_NOTICE => 'notice', E_USER_WARNING => 'warning', @@ -1104,8 +1052,6 @@ class PEAR_Error $this->error_message_prefix, $this->userinfo); } - - // }}} } /* @@ -1115,4 +1061,3 @@ class PEAR_Error * c-basic-offset: 4 * End: */ -?> diff --git a/extlib/PEAR/ErrorStack.php b/extlib/PEAR/ErrorStack.php new file mode 100644 index 0000000000..3229fba520 --- /dev/null +++ b/extlib/PEAR/ErrorStack.php @@ -0,0 +1,985 @@ + + * @copyright 2004-2008 Greg Beaver + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version CVS: $Id: ErrorStack.php 307683 2011-01-23 21:56:12Z dufuz $ + * @link http://pear.php.net/package/PEAR_ErrorStack + */ + +/** + * Singleton storage + * + * Format: + * 
+ * array(
+ *  'package1' => PEAR_ErrorStack object,
+ *  'package2' => PEAR_ErrorStack object,
+ *  ...
+ * )
+ *
+ * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] + */ +$GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] = array(); + +/** + * Global error callback (default) + * + * This is only used if set to non-false. * is the default callback for + * all packages, whereas specific packages may set a default callback + * for all instances, regardless of whether they are a singleton or not. + * + * To exclude non-singletons, only set the local callback for the singleton + * @see PEAR_ErrorStack::setDefaultCallback() + * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'] + */ +$GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'] = array( + '*' => false, +); + +/** + * Global Log object (default) + * + * This is only used if set to non-false. Use to set a default log object for + * all stacks, regardless of instantiation order or location + * @see PEAR_ErrorStack::setDefaultLogger() + * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] + */ +$GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] = false; + +/** + * Global Overriding Callback + * + * This callback will override any error callbacks that specific loggers have set. + * Use with EXTREME caution + * @see PEAR_ErrorStack::staticPushCallback() + * @access private + * @global array $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] + */ +$GLOBALS['_PEAR_ERRORSTACK_OVERRIDE_CALLBACK'] = array(); + +/**#@+ + * One of four possible return values from the error Callback + * @see PEAR_ErrorStack::_errorCallback() + */ +/** + * If this is returned, then the error will be both pushed onto the stack + * and logged. + */ +define('PEAR_ERRORSTACK_PUSHANDLOG', 1); +/** + * If this is returned, then the error will only be pushed onto the stack, + * and not logged. + */ +define('PEAR_ERRORSTACK_PUSH', 2); +/** + * If this is returned, then the error will only be logged, but not pushed + * onto the error stack. + */ +define('PEAR_ERRORSTACK_LOG', 3); +/** + * If this is returned, then the error is completely ignored. + */ +define('PEAR_ERRORSTACK_IGNORE', 4); +/** + * If this is returned, then the error is logged and die() is called. + */ +define('PEAR_ERRORSTACK_DIE', 5); +/**#@-*/ + +/** + * Error code for an attempt to instantiate a non-class as a PEAR_ErrorStack in + * the singleton method. + */ +define('PEAR_ERRORSTACK_ERR_NONCLASS', 1); + +/** + * Error code for an attempt to pass an object into {@link PEAR_ErrorStack::getMessage()} + * that has no __toString() method + */ +define('PEAR_ERRORSTACK_ERR_OBJTOSTRING', 2); +/** + * Error Stack Implementation + * + * Usage: + * + * // global error stack + * $global_stack = &PEAR_ErrorStack::singleton('MyPackage'); + * // local error stack + * $local_stack = new PEAR_ErrorStack('MyPackage'); + * + * @author Greg Beaver + * @version 1.9.2 + * @package PEAR_ErrorStack + * @category Debugging + * @copyright 2004-2008 Greg Beaver + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version CVS: $Id: ErrorStack.php 307683 2011-01-23 21:56:12Z dufuz $ + * @link http://pear.php.net/package/PEAR_ErrorStack + */ +class PEAR_ErrorStack { + /** + * Errors are stored in the order that they are pushed on the stack. + * @since 0.4alpha Errors are no longer organized by error level. + * This renders pop() nearly unusable, and levels could be more easily + * handled in a callback anyway + * @var array + * @access private + */ + var $_errors = array(); + + /** + * Storage of errors by level. + * + * Allows easy retrieval and deletion of only errors from a particular level + * @since PEAR 1.4.0dev + * @var array + * @access private + */ + var $_errorsByLevel = array(); + + /** + * Package name this error stack represents + * @var string + * @access protected + */ + var $_package; + + /** + * Determines whether a PEAR_Error is thrown upon every error addition + * @var boolean + * @access private + */ + var $_compat = false; + + /** + * If set to a valid callback, this will be used to generate the error + * message from the error code, otherwise the message passed in will be + * used + * @var false|string|array + * @access private + */ + var $_msgCallback = false; + + /** + * If set to a valid callback, this will be used to generate the error + * context for an error. For PHP-related errors, this will be a file + * and line number as retrieved from debug_backtrace(), but can be + * customized for other purposes. The error might actually be in a separate + * configuration file, or in a database query. + * @var false|string|array + * @access protected + */ + var $_contextCallback = false; + + /** + * If set to a valid callback, this will be called every time an error + * is pushed onto the stack. The return value will be used to determine + * whether to allow an error to be pushed or logged. + * + * The return value must be one an PEAR_ERRORSTACK_* constant + * @see PEAR_ERRORSTACK_PUSHANDLOG, PEAR_ERRORSTACK_PUSH, PEAR_ERRORSTACK_LOG + * @var false|string|array + * @access protected + */ + var $_errorCallback = array(); + + /** + * PEAR::Log object for logging errors + * @var false|Log + * @access protected + */ + var $_logger = false; + + /** + * Error messages - designed to be overridden + * @var array + * @abstract + */ + var $_errorMsgs = array(); + + /** + * Set up a new error stack + * + * @param string $package name of the package this error stack represents + * @param callback $msgCallback callback used for error message generation + * @param callback $contextCallback callback used for context generation, + * defaults to {@link getFileLine()} + * @param boolean $throwPEAR_Error + */ + function PEAR_ErrorStack($package, $msgCallback = false, $contextCallback = false, + $throwPEAR_Error = false) + { + $this->_package = $package; + $this->setMessageCallback($msgCallback); + $this->setContextCallback($contextCallback); + $this->_compat = $throwPEAR_Error; + } + + /** + * Return a single error stack for this package. + * + * Note that all parameters are ignored if the stack for package $package + * has already been instantiated + * @param string $package name of the package this error stack represents + * @param callback $msgCallback callback used for error message generation + * @param callback $contextCallback callback used for context generation, + * defaults to {@link getFileLine()} + * @param boolean $throwPEAR_Error + * @param string $stackClass class to instantiate + * @static + * @return PEAR_ErrorStack + */ + function &singleton($package, $msgCallback = false, $contextCallback = false, + $throwPEAR_Error = false, $stackClass = 'PEAR_ErrorStack') + { + if (isset($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package])) { + return $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]; + } + if (!class_exists($stackClass)) { + if (function_exists('debug_backtrace')) { + $trace = debug_backtrace(); + } + PEAR_ErrorStack::staticPush('PEAR_ErrorStack', PEAR_ERRORSTACK_ERR_NONCLASS, + 'exception', array('stackclass' => $stackClass), + 'stack class "%stackclass%" is not a valid class name (should be like PEAR_ErrorStack)', + false, $trace); + } + $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package] = + new $stackClass($package, $msgCallback, $contextCallback, $throwPEAR_Error); + + return $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]; + } + + /** + * Internal error handler for PEAR_ErrorStack class + * + * Dies if the error is an exception (and would have died anyway) + * @access private + */ + function _handleError($err) + { + if ($err['level'] == 'exception') { + $message = $err['message']; + if (isset($_SERVER['REQUEST_URI'])) { + echo '
'; + } else { + echo "\n"; + } + var_dump($err['context']); + die($message); + } + } + + /** + * Set up a PEAR::Log object for all error stacks that don't have one + * @param Log $log + * @static + */ + function setDefaultLogger(&$log) + { + if (is_object($log) && method_exists($log, 'log') ) { + $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] = &$log; + } elseif (is_callable($log)) { + $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER'] = &$log; + } + } + + /** + * Set up a PEAR::Log object for this error stack + * @param Log $log + */ + function setLogger(&$log) + { + if (is_object($log) && method_exists($log, 'log') ) { + $this->_logger = &$log; + } elseif (is_callable($log)) { + $this->_logger = &$log; + } + } + + /** + * Set an error code => error message mapping callback + * + * This method sets the callback that can be used to generate error + * messages for any instance + * @param array|string Callback function/method + */ + function setMessageCallback($msgCallback) + { + if (!$msgCallback) { + $this->_msgCallback = array(&$this, 'getErrorMessage'); + } else { + if (is_callable($msgCallback)) { + $this->_msgCallback = $msgCallback; + } + } + } + + /** + * Get an error code => error message mapping callback + * + * This method returns the current callback that can be used to generate error + * messages + * @return array|string|false Callback function/method or false if none + */ + function getMessageCallback() + { + return $this->_msgCallback; + } + + /** + * Sets a default callback to be used by all error stacks + * + * This method sets the callback that can be used to generate error + * messages for a singleton + * @param array|string Callback function/method + * @param string Package name, or false for all packages + * @static + */ + function setDefaultCallback($callback = false, $package = false) + { + if (!is_callable($callback)) { + $callback = false; + } + $package = $package ? $package : '*'; + $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'][$package] = $callback; + } + + /** + * Set a callback that generates context information (location of error) for an error stack + * + * This method sets the callback that can be used to generate context + * information for an error. Passing in NULL will disable context generation + * and remove the expensive call to debug_backtrace() + * @param array|string|null Callback function/method + */ + function setContextCallback($contextCallback) + { + if ($contextCallback === null) { + return $this->_contextCallback = false; + } + if (!$contextCallback) { + $this->_contextCallback = array(&$this, 'getFileLine'); + } else { + if (is_callable($contextCallback)) { + $this->_contextCallback = $contextCallback; + } + } + } + + /** + * Set an error Callback + * If set to a valid callback, this will be called every time an error + * is pushed onto the stack. The return value will be used to determine + * whether to allow an error to be pushed or logged. + * + * The return value must be one of the ERRORSTACK_* constants. + * + * This functionality can be used to emulate PEAR's pushErrorHandling, and + * the PEAR_ERROR_CALLBACK mode, without affecting the integrity of + * the error stack or logging + * @see PEAR_ERRORSTACK_PUSHANDLOG, PEAR_ERRORSTACK_PUSH, PEAR_ERRORSTACK_LOG + * @see popCallback() + * @param string|array $cb + */ + function pushCallback($cb) + { + array_push($this->_errorCallback, $cb); + } + + /** + * Remove a callback from the error callback stack + * @see pushCallback() + * @return array|string|false + */ + function popCallback() + { + if (!count($this->_errorCallback)) { + return false; + } + return array_pop($this->_errorCallback); + } + + /** + * Set a temporary overriding error callback for every package error stack + * + * Use this to temporarily disable all existing callbacks (can be used + * to emulate the @ operator, for instance) + * @see PEAR_ERRORSTACK_PUSHANDLOG, PEAR_ERRORSTACK_PUSH, PEAR_ERRORSTACK_LOG + * @see staticPopCallback(), pushCallback() + * @param string|array $cb + * @static + */ + function staticPushCallback($cb) + { + array_push($GLOBALS['_PEAR_ERRORSTACK_OVERRIDE_CALLBACK'], $cb); + } + + /** + * Remove a temporary overriding error callback + * @see staticPushCallback() + * @return array|string|false + * @static + */ + function staticPopCallback() + { + $ret = array_pop($GLOBALS['_PEAR_ERRORSTACK_OVERRIDE_CALLBACK']); + if (!is_array($GLOBALS['_PEAR_ERRORSTACK_OVERRIDE_CALLBACK'])) { + $GLOBALS['_PEAR_ERRORSTACK_OVERRIDE_CALLBACK'] = array(); + } + return $ret; + } + + /** + * Add an error to the stack + * + * If the message generator exists, it is called with 2 parameters. + * - the current Error Stack object + * - an array that is in the same format as an error. Available indices + * are 'code', 'package', 'time', 'params', 'level', and 'context' + * + * Next, if the error should contain context information, this is + * handled by the context grabbing method. + * Finally, the error is pushed onto the proper error stack + * @param int $code Package-specific error code + * @param string $level Error level. This is NOT spell-checked + * @param array $params associative array of error parameters + * @param string $msg Error message, or a portion of it if the message + * is to be generated + * @param array $repackage If this error re-packages an error pushed by + * another package, place the array returned from + * {@link pop()} in this parameter + * @param array $backtrace Protected parameter: use this to pass in the + * {@link debug_backtrace()} that should be used + * to find error context + * @return PEAR_Error|array if compatibility mode is on, a PEAR_Error is also + * thrown. If a PEAR_Error is returned, the userinfo + * property is set to the following array: + * + * + * array( + * 'code' => $code, + * 'params' => $params, + * 'package' => $this->_package, + * 'level' => $level, + * 'time' => time(), + * 'context' => $context, + * 'message' => $msg, + * //['repackage' => $err] repackaged error array/Exception class + * ); + * + * + * Normally, the previous array is returned. + */ + function push($code, $level = 'error', $params = array(), $msg = false, + $repackage = false, $backtrace = false) + { + $context = false; + // grab error context + if ($this->_contextCallback) { + if (!$backtrace) { + $backtrace = debug_backtrace(); + } + $context = call_user_func($this->_contextCallback, $code, $params, $backtrace); + } + + // save error + $time = explode(' ', microtime()); + $time = $time[1] + $time[0]; + $err = array( + 'code' => $code, + 'params' => $params, + 'package' => $this->_package, + 'level' => $level, + 'time' => $time, + 'context' => $context, + 'message' => $msg, + ); + + if ($repackage) { + $err['repackage'] = $repackage; + } + + // set up the error message, if necessary + if ($this->_msgCallback) { + $msg = call_user_func_array($this->_msgCallback, + array(&$this, $err)); + $err['message'] = $msg; + } + $push = $log = true; + $die = false; + // try the overriding callback first + $callback = $this->staticPopCallback(); + if ($callback) { + $this->staticPushCallback($callback); + } + if (!is_callable($callback)) { + // try the local callback next + $callback = $this->popCallback(); + if (is_callable($callback)) { + $this->pushCallback($callback); + } else { + // try the default callback + $callback = isset($GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'][$this->_package]) ? + $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'][$this->_package] : + $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK']['*']; + } + } + if (is_callable($callback)) { + switch(call_user_func($callback, $err)){ + case PEAR_ERRORSTACK_IGNORE: + return $err; + break; + case PEAR_ERRORSTACK_PUSH: + $log = false; + break; + case PEAR_ERRORSTACK_LOG: + $push = false; + break; + case PEAR_ERRORSTACK_DIE: + $die = true; + break; + // anything else returned has the same effect as pushandlog + } + } + if ($push) { + array_unshift($this->_errors, $err); + if (!isset($this->_errorsByLevel[$err['level']])) { + $this->_errorsByLevel[$err['level']] = array(); + } + $this->_errorsByLevel[$err['level']][] = &$this->_errors[0]; + } + if ($log) { + if ($this->_logger || $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER']) { + $this->_log($err); + } + } + if ($die) { + die(); + } + if ($this->_compat && $push) { + return $this->raiseError($msg, $code, null, null, $err); + } + return $err; + } + + /** + * Static version of {@link push()} + * + * @param string $package Package name this error belongs to + * @param int $code Package-specific error code + * @param string $level Error level. This is NOT spell-checked + * @param array $params associative array of error parameters + * @param string $msg Error message, or a portion of it if the message + * is to be generated + * @param array $repackage If this error re-packages an error pushed by + * another package, place the array returned from + * {@link pop()} in this parameter + * @param array $backtrace Protected parameter: use this to pass in the + * {@link debug_backtrace()} that should be used + * to find error context + * @return PEAR_Error|array if compatibility mode is on, a PEAR_Error is also + * thrown. see docs for {@link push()} + * @static + */ + function staticPush($package, $code, $level = 'error', $params = array(), + $msg = false, $repackage = false, $backtrace = false) + { + $s = &PEAR_ErrorStack::singleton($package); + if ($s->_contextCallback) { + if (!$backtrace) { + if (function_exists('debug_backtrace')) { + $backtrace = debug_backtrace(); + } + } + } + return $s->push($code, $level, $params, $msg, $repackage, $backtrace); + } + + /** + * Log an error using PEAR::Log + * @param array $err Error array + * @param array $levels Error level => Log constant map + * @access protected + */ + function _log($err) + { + if ($this->_logger) { + $logger = &$this->_logger; + } else { + $logger = &$GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER']; + } + if (is_a($logger, 'Log')) { + $levels = array( + 'exception' => PEAR_LOG_CRIT, + 'alert' => PEAR_LOG_ALERT, + 'critical' => PEAR_LOG_CRIT, + 'error' => PEAR_LOG_ERR, + 'warning' => PEAR_LOG_WARNING, + 'notice' => PEAR_LOG_NOTICE, + 'info' => PEAR_LOG_INFO, + 'debug' => PEAR_LOG_DEBUG); + if (isset($levels[$err['level']])) { + $level = $levels[$err['level']]; + } else { + $level = PEAR_LOG_INFO; + } + $logger->log($err['message'], $level, $err); + } else { // support non-standard logs + call_user_func($logger, $err); + } + } + + + /** + * Pop an error off of the error stack + * + * @return false|array + * @since 0.4alpha it is no longer possible to specify a specific error + * level to return - the last error pushed will be returned, instead + */ + function pop() + { + $err = @array_shift($this->_errors); + if (!is_null($err)) { + @array_pop($this->_errorsByLevel[$err['level']]); + if (!count($this->_errorsByLevel[$err['level']])) { + unset($this->_errorsByLevel[$err['level']]); + } + } + return $err; + } + + /** + * Pop an error off of the error stack, static method + * + * @param string package name + * @return boolean + * @since PEAR1.5.0a1 + */ + function staticPop($package) + { + if ($package) { + if (!isset($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package])) { + return false; + } + return $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->pop(); + } + } + + /** + * Determine whether there are any errors on the stack + * @param string|array Level name. Use to determine if any errors + * of level (string), or levels (array) have been pushed + * @return boolean + */ + function hasErrors($level = false) + { + if ($level) { + return isset($this->_errorsByLevel[$level]); + } + return count($this->_errors); + } + + /** + * Retrieve all errors since last purge + * + * @param boolean set in order to empty the error stack + * @param string level name, to return only errors of a particular severity + * @return array + */ + function getErrors($purge = false, $level = false) + { + if (!$purge) { + if ($level) { + if (!isset($this->_errorsByLevel[$level])) { + return array(); + } else { + return $this->_errorsByLevel[$level]; + } + } else { + return $this->_errors; + } + } + if ($level) { + $ret = $this->_errorsByLevel[$level]; + foreach ($this->_errorsByLevel[$level] as $i => $unused) { + // entries are references to the $_errors array + $this->_errorsByLevel[$level][$i] = false; + } + // array_filter removes all entries === false + $this->_errors = array_filter($this->_errors); + unset($this->_errorsByLevel[$level]); + return $ret; + } + $ret = $this->_errors; + $this->_errors = array(); + $this->_errorsByLevel = array(); + return $ret; + } + + /** + * Determine whether there are any errors on a single error stack, or on any error stack + * + * The optional parameter can be used to test the existence of any errors without the need of + * singleton instantiation + * @param string|false Package name to check for errors + * @param string Level name to check for a particular severity + * @return boolean + * @static + */ + function staticHasErrors($package = false, $level = false) + { + if ($package) { + if (!isset($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package])) { + return false; + } + return $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->hasErrors($level); + } + foreach ($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] as $package => $obj) { + if ($obj->hasErrors($level)) { + return true; + } + } + return false; + } + + /** + * Get a list of all errors since last purge, organized by package + * @since PEAR 1.4.0dev BC break! $level is now in the place $merge used to be + * @param boolean $purge Set to purge the error stack of existing errors + * @param string $level Set to a level name in order to retrieve only errors of a particular level + * @param boolean $merge Set to return a flat array, not organized by package + * @param array $sortfunc Function used to sort a merged array - default + * sorts by time, and should be good for most cases + * @static + * @return array + */ + function staticGetErrors($purge = false, $level = false, $merge = false, + $sortfunc = array('PEAR_ErrorStack', '_sortErrors')) + { + $ret = array(); + if (!is_callable($sortfunc)) { + $sortfunc = array('PEAR_ErrorStack', '_sortErrors'); + } + foreach ($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] as $package => $obj) { + $test = $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->getErrors($purge, $level); + if ($test) { + if ($merge) { + $ret = array_merge($ret, $test); + } else { + $ret[$package] = $test; + } + } + } + if ($merge) { + usort($ret, $sortfunc); + } + return $ret; + } + + /** + * Error sorting function, sorts by time + * @access private + */ + function _sortErrors($a, $b) + { + if ($a['time'] == $b['time']) { + return 0; + } + if ($a['time'] < $b['time']) { + return 1; + } + return -1; + } + + /** + * Standard file/line number/function/class context callback + * + * This function uses a backtrace generated from {@link debug_backtrace()} + * and so will not work at all in PHP < 4.3.0. The frame should + * reference the frame that contains the source of the error. + * @return array|false either array('file' => file, 'line' => line, + * 'function' => function name, 'class' => class name) or + * if this doesn't work, then false + * @param unused + * @param integer backtrace frame. + * @param array Results of debug_backtrace() + * @static + */ + function getFileLine($code, $params, $backtrace = null) + { + if ($backtrace === null) { + return false; + } + $frame = 0; + $functionframe = 1; + if (!isset($backtrace[1])) { + $functionframe = 0; + } else { + while (isset($backtrace[$functionframe]['function']) && + $backtrace[$functionframe]['function'] == 'eval' && + isset($backtrace[$functionframe + 1])) { + $functionframe++; + } + } + if (isset($backtrace[$frame])) { + if (!isset($backtrace[$frame]['file'])) { + $frame++; + } + $funcbacktrace = $backtrace[$functionframe]; + $filebacktrace = $backtrace[$frame]; + $ret = array('file' => $filebacktrace['file'], + 'line' => $filebacktrace['line']); + // rearrange for eval'd code or create function errors + if (strpos($filebacktrace['file'], '(') && + preg_match(';^(.*?)\((\d+)\) : (.*?)\\z;', $filebacktrace['file'], + $matches)) { + $ret['file'] = $matches[1]; + $ret['line'] = $matches[2] + 0; + } + if (isset($funcbacktrace['function']) && isset($backtrace[1])) { + if ($funcbacktrace['function'] != 'eval') { + if ($funcbacktrace['function'] == '__lambda_func') { + $ret['function'] = 'create_function() code'; + } else { + $ret['function'] = $funcbacktrace['function']; + } + } + } + if (isset($funcbacktrace['class']) && isset($backtrace[1])) { + $ret['class'] = $funcbacktrace['class']; + } + return $ret; + } + return false; + } + + /** + * Standard error message generation callback + * + * This method may also be called by a custom error message generator + * to fill in template values from the params array, simply + * set the third parameter to the error message template string to use + * + * The special variable %__msg% is reserved: use it only to specify + * where a message passed in by the user should be placed in the template, + * like so: + * + * Error message: %msg% - internal error + * + * If the message passed like so: + * + * + * $stack->push(ERROR_CODE, 'error', array(), 'server error 500'); + * + * + * The returned error message will be "Error message: server error 500 - + * internal error" + * @param PEAR_ErrorStack + * @param array + * @param string|false Pre-generated error message template + * @static + * @return string + */ + function getErrorMessage(&$stack, $err, $template = false) + { + if ($template) { + $mainmsg = $template; + } else { + $mainmsg = $stack->getErrorMessageTemplate($err['code']); + } + $mainmsg = str_replace('%__msg%', $err['message'], $mainmsg); + if (is_array($err['params']) && count($err['params'])) { + foreach ($err['params'] as $name => $val) { + if (is_array($val)) { + // @ is needed in case $val is a multi-dimensional array + $val = @implode(', ', $val); + } + if (is_object($val)) { + if (method_exists($val, '__toString')) { + $val = $val->__toString(); + } else { + PEAR_ErrorStack::staticPush('PEAR_ErrorStack', PEAR_ERRORSTACK_ERR_OBJTOSTRING, + 'warning', array('obj' => get_class($val)), + 'object %obj% passed into getErrorMessage, but has no __toString() method'); + $val = 'Object'; + } + } + $mainmsg = str_replace('%' . $name . '%', $val, $mainmsg); + } + } + return $mainmsg; + } + + /** + * Standard Error Message Template generator from code + * @return string + */ + function getErrorMessageTemplate($code) + { + if (!isset($this->_errorMsgs[$code])) { + return '%__msg%'; + } + return $this->_errorMsgs[$code]; + } + + /** + * Set the Error Message Template array + * + * The array format must be: + * 
+     * array(error code => 'message template',...)
+     *
+ * + * Error message parameters passed into {@link push()} will be used as input + * for the error message. If the template is 'message %foo% was %bar%', and the + * parameters are array('foo' => 'one', 'bar' => 'six'), the error message returned will + * be 'message one was six' + * @return string + */ + function setErrorMessageTemplate($template) + { + $this->_errorMsgs = $template; + } + + + /** + * emulate PEAR::raiseError() + * + * @return PEAR_Error + */ + function raiseError() + { + require_once 'PEAR.php'; + $args = func_get_args(); + return call_user_func_array(array('PEAR', 'raiseError'), $args); + } +} +$stack = &PEAR_ErrorStack::singleton('PEAR_ErrorStack'); +$stack->pushCallback(array('PEAR_ErrorStack', '_handleError')); +?> diff --git a/extlib/PEAR/Exception.php b/extlib/PEAR/Exception.php index b3d75b20c9..d0327b141b 100644 --- a/extlib/PEAR/Exception.php +++ b/extlib/PEAR/Exception.php @@ -5,21 +5,15 @@ * * PHP versions 4 and 5 * - * LICENSE: This source file is subject to version 3.0 of the PHP license - * that is available through the world-wide-web at the following URI: - * http://www.php.net/license/3_0.txt. If you did not receive a copy of - * the PHP License and are unable to obtain it through the web, please - * send a note to license@php.net so we can mail you a copy immediately. - * * @category pear * @package PEAR * @author Tomas V. V. Cox * @author Hans Lellelid * @author Bertrand Mansion * @author Greg Beaver - * @copyright 1997-2008 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version CVS: $Id: Exception.php,v 1.29 2008/01/03 20:26:35 cellog Exp $ + * @copyright 1997-2009 The Authors + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version CVS: $Id: Exception.php 307683 2011-01-23 21:56:12Z dufuz $ * @link http://pear.php.net/package/PEAR * @since File available since Release 1.3.3 */ @@ -93,9 +87,9 @@ * @author Hans Lellelid * @author Bertrand Mansion * @author Greg Beaver - * @copyright 1997-2008 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version Release: 1.7.2 + * @copyright 1997-2009 The Authors + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version Release: 1.9.2 * @link http://pear.php.net/package/PEAR * @since Class available since Release 1.3.3 * @@ -295,7 +289,7 @@ class PEAR_Exception extends Exception } public function getTraceSafe() - { + { if (!isset($this->_trace)) { $this->_trace = $this->getTrace(); if (empty($this->_trace)) { @@ -331,21 +325,21 @@ class PEAR_Exception extends Exception $trace = $this->getTraceSafe(); $causes = array(); $this->getCauseMessage($causes); - $html = '' . "\n"; + $html = '
' . "\n"; foreach ($causes as $i => $cause) { - $html .= '\n"; } - $html .= '' . "\n" - . '' - . '' - . '' . "\n"; + $html .= '' . "\n" + . '' + . '' + . '' . "\n"; foreach ($trace as $k => $v) { - $html .= '' + $html .= '' . '' . "\n"; } - $html .= '' + $html .= '' . '' . '' . "\n" . '
' + $html .= '
' . str_repeat('-', $i) . ' ' . $cause['class'] . ': ' . htmlspecialchars($cause['message']) . ' in ' . $cause['file'] . ' ' . 'on line ' . $cause['line'] . '' . "
Exception trace
#FunctionLocation
Exception trace
#FunctionLocation
' . $k . '
' . $k . ''; if (!empty($v['class'])) { $html .= $v['class'] . $v['type']; @@ -373,7 +367,7 @@ class PEAR_Exception extends Exception . ':' . (isset($v['line']) ? $v['line'] : 'unknown') . '
' . ($k+1) . '
' . ($k+1) . '{main} 
'; @@ -392,6 +386,4 @@ class PEAR_Exception extends Exception } return $causeMsg . $this->getTraceAsString(); } -} - -?> \ No newline at end of file +} \ No newline at end of file diff --git a/extlib/PEAR5.php b/extlib/PEAR5.php new file mode 100644 index 0000000000..428606780b --- /dev/null +++ b/extlib/PEAR5.php @@ -0,0 +1,33 @@ + + * @copyright 1997-2009 The Authors + * @license http://opensource.org/licenses/bsd-license.php New BSD License + * @version CVS: $Id: System.php 307683 2011-01-23 21:56:12Z dufuz $ + * @link http://pear.php.net/package/PEAR + * @since File available since Release 0.1 + */ + +/** + * base class + */ +require_once 'PEAR.php'; +require_once 'Console/Getopt.php'; + +$GLOBALS['_System_temp_files'] = array(); + +/** +* System offers cross plattform compatible system functions +* +* Static functions for different operations. Should work under +* Unix and Windows. The names and usage has been taken from its respectively +* GNU commands. The functions will return (bool) false on error and will +* trigger the error with the PHP trigger_error() function (you can silence +* the error by prefixing a '@' sign after the function call, but this +* is not recommended practice. Instead use an error handler with +* {@link set_error_handler()}). +* +* Documentation on this class you can find in: +* http://pear.php.net/manual/ +* +* Example usage: +* if (!@System::rm('-r file1 dir1')) { +* print "could not delete file1 or dir1"; +* } +* +* In case you need to to pass file names with spaces, +* pass the params as an array: +* +* System::rm(array('-r', $file1, $dir1)); +* +* @category pear +* @package System +* @author Tomas V.V. Cox +* @copyright 1997-2006 The PHP Group +* @license http://opensource.org/licenses/bsd-license.php New BSD License +* @version Release: 1.9.2 +* @link http://pear.php.net/package/PEAR +* @since Class available since Release 0.1 +* @static +*/ +class System +{ + /** + * returns the commandline arguments of a function + * + * @param string $argv the commandline + * @param string $short_options the allowed option short-tags + * @param string $long_options the allowed option long-tags + * @return array the given options and there values + * @static + * @access private + */ + function _parseArgs($argv, $short_options, $long_options = null) + { + if (!is_array($argv) && $argv !== null) { + $argv = preg_split('/\s+/', $argv, -1, PREG_SPLIT_NO_EMPTY); + } + return Console_Getopt::getopt2($argv, $short_options); + } + + /** + * Output errors with PHP trigger_error(). You can silence the errors + * with prefixing a "@" sign to the function call: @System::mkdir(..); + * + * @param mixed $error a PEAR error or a string with the error message + * @return bool false + * @static + * @access private + */ + function raiseError($error) + { + if (PEAR::isError($error)) { + $error = $error->getMessage(); + } + trigger_error($error, E_USER_WARNING); + return false; + } + + /** + * Creates a nested array representing the structure of a directory + * + * System::_dirToStruct('dir1', 0) => + * Array + * ( + * [dirs] => Array + * ( + * [0] => dir1 + * ) + * + * [files] => Array + * ( + * [0] => dir1/file2 + * [1] => dir1/file3 + * ) + * ) + * @param string $sPath Name of the directory + * @param integer $maxinst max. deep of the lookup + * @param integer $aktinst starting deep of the lookup + * @param bool $silent if true, do not emit errors. + * @return array the structure of the dir + * @static + * @access private + */ + function _dirToStruct($sPath, $maxinst, $aktinst = 0, $silent = false) + { + $struct = array('dirs' => array(), 'files' => array()); + if (($dir = @opendir($sPath)) === false) { + if (!$silent) { + System::raiseError("Could not open dir $sPath"); + } + return $struct; // XXX could not open error + } + + $struct['dirs'][] = $sPath = realpath($sPath); // XXX don't add if '.' or '..' ? + $list = array(); + while (false !== ($file = readdir($dir))) { + if ($file != '.' && $file != '..') { + $list[] = $file; + } + } + + closedir($dir); + natsort($list); + if ($aktinst < $maxinst || $maxinst == 0) { + foreach ($list as $val) { + $path = $sPath . DIRECTORY_SEPARATOR . $val; + if (is_dir($path) && !is_link($path)) { + $tmp = System::_dirToStruct($path, $maxinst, $aktinst+1, $silent); + $struct = array_merge_recursive($struct, $tmp); + } else { + $struct['files'][] = $path; + } + } + } + + return $struct; + } + + /** + * Creates a nested array representing the structure of a directory and files + * + * @param array $files Array listing files and dirs + * @return array + * @static + * @see System::_dirToStruct() + */ + function _multipleToStruct($files) + { + $struct = array('dirs' => array(), 'files' => array()); + settype($files, 'array'); + foreach ($files as $file) { + if (is_dir($file) && !is_link($file)) { + $tmp = System::_dirToStruct($file, 0); + $struct = array_merge_recursive($tmp, $struct); + } else { + if (!in_array($file, $struct['files'])) { + $struct['files'][] = $file; + } + } + } + return $struct; + } + + /** + * The rm command for removing files. + * Supports multiple files and dirs and also recursive deletes + * + * @param string $args the arguments for rm + * @return mixed PEAR_Error or true for success + * @static + * @access public + */ + function rm($args) + { + $opts = System::_parseArgs($args, 'rf'); // "f" does nothing but I like it :-) + if (PEAR::isError($opts)) { + return System::raiseError($opts); + } + foreach ($opts[0] as $opt) { + if ($opt[0] == 'r') { + $do_recursive = true; + } + } + $ret = true; + if (isset($do_recursive)) { + $struct = System::_multipleToStruct($opts[1]); + foreach ($struct['files'] as $file) { + if (!@unlink($file)) { + $ret = false; + } + } + + rsort($struct['dirs']); + foreach ($struct['dirs'] as $dir) { + if (!@rmdir($dir)) { + $ret = false; + } + } + } else { + foreach ($opts[1] as $file) { + $delete = (is_dir($file)) ? 'rmdir' : 'unlink'; + if (!@$delete($file)) { + $ret = false; + } + } + } + return $ret; + } + + /** + * Make directories. + * + * The -p option will create parent directories + * @param string $args the name of the director(y|ies) to create + * @return bool True for success + * @static + * @access public + */ + function mkDir($args) + { + $opts = System::_parseArgs($args, 'pm:'); + if (PEAR::isError($opts)) { + return System::raiseError($opts); + } + + $mode = 0777; // default mode + foreach ($opts[0] as $opt) { + if ($opt[0] == 'p') { + $create_parents = true; + } elseif ($opt[0] == 'm') { + // if the mode is clearly an octal number (starts with 0) + // convert it to decimal + if (strlen($opt[1]) && $opt[1]{0} == '0') { + $opt[1] = octdec($opt[1]); + } else { + // convert to int + $opt[1] += 0; + } + $mode = $opt[1]; + } + } + + $ret = true; + if (isset($create_parents)) { + foreach ($opts[1] as $dir) { + $dirstack = array(); + while ((!file_exists($dir) || !is_dir($dir)) && + $dir != DIRECTORY_SEPARATOR) { + array_unshift($dirstack, $dir); + $dir = dirname($dir); + } + + while ($newdir = array_shift($dirstack)) { + if (!is_writeable(dirname($newdir))) { + $ret = false; + break; + } + + if (!mkdir($newdir, $mode)) { + $ret = false; + } + } + } + } else { + foreach($opts[1] as $dir) { + if ((@file_exists($dir) || !is_dir($dir)) && !mkdir($dir, $mode)) { + $ret = false; + } + } + } + + return $ret; + } + + /** + * Concatenate files + * + * Usage: + * 1) $var = System::cat('sample.txt test.txt'); + * 2) System::cat('sample.txt test.txt > final.txt'); + * 3) System::cat('sample.txt test.txt >> final.txt'); + * + * Note: as the class use fopen, urls should work also (test that) + * + * @param string $args the arguments + * @return boolean true on success + * @static + * @access public + */ + function &cat($args) + { + $ret = null; + $files = array(); + if (!is_array($args)) { + $args = preg_split('/\s+/', $args, -1, PREG_SPLIT_NO_EMPTY); + } + + $count_args = count($args); + for ($i = 0; $i < $count_args; $i++) { + if ($args[$i] == '>') { + $mode = 'wb'; + $outputfile = $args[$i+1]; + break; + } elseif ($args[$i] == '>>') { + $mode = 'ab+'; + $outputfile = $args[$i+1]; + break; + } else { + $files[] = $args[$i]; + } + } + $outputfd = false; + if (isset($mode)) { + if (!$outputfd = fopen($outputfile, $mode)) { + $err = System::raiseError("Could not open $outputfile"); + return $err; + } + $ret = true; + } + foreach ($files as $file) { + if (!$fd = fopen($file, 'r')) { + System::raiseError("Could not open $file"); + continue; + } + while ($cont = fread($fd, 2048)) { + if (is_resource($outputfd)) { + fwrite($outputfd, $cont); + } else { + $ret .= $cont; + } + } + fclose($fd); + } + if (is_resource($outputfd)) { + fclose($outputfd); + } + return $ret; + } + + /** + * Creates temporary files or directories. This function will remove + * the created files when the scripts finish its execution. + * + * Usage: + * 1) $tempfile = System::mktemp("prefix"); + * 2) $tempdir = System::mktemp("-d prefix"); + * 3) $tempfile = System::mktemp(); + * 4) $tempfile = System::mktemp("-t /var/tmp prefix"); + * + * prefix -> The string that will be prepended to the temp name + * (defaults to "tmp"). + * -d -> A temporary dir will be created instead of a file. + * -t -> The target dir where the temporary (file|dir) will be created. If + * this param is missing by default the env vars TMP on Windows or + * TMPDIR in Unix will be used. If these vars are also missing + * c:\windows\temp or /tmp will be used. + * + * @param string $args The arguments + * @return mixed the full path of the created (file|dir) or false + * @see System::tmpdir() + * @static + * @access public + */ + function mktemp($args = null) + { + static $first_time = true; + $opts = System::_parseArgs($args, 't:d'); + if (PEAR::isError($opts)) { + return System::raiseError($opts); + } + + foreach ($opts[0] as $opt) { + if ($opt[0] == 'd') { + $tmp_is_dir = true; + } elseif ($opt[0] == 't') { + $tmpdir = $opt[1]; + } + } + + $prefix = (isset($opts[1][0])) ? $opts[1][0] : 'tmp'; + if (!isset($tmpdir)) { + $tmpdir = System::tmpdir(); + } + + if (!System::mkDir(array('-p', $tmpdir))) { + return false; + } + + $tmp = tempnam($tmpdir, $prefix); + if (isset($tmp_is_dir)) { + unlink($tmp); // be careful possible race condition here + if (!mkdir($tmp, 0700)) { + return System::raiseError("Unable to create temporary directory $tmpdir"); + } + } + + $GLOBALS['_System_temp_files'][] = $tmp; + if (isset($tmp_is_dir)) { + //$GLOBALS['_System_temp_files'][] = dirname($tmp); + } + + if ($first_time) { + PEAR::registerShutdownFunc(array('System', '_removeTmpFiles')); + $first_time = false; + } + + return $tmp; + } + + /** + * Remove temporary files created my mkTemp. This function is executed + * at script shutdown time + * + * @static + * @access private + */ + function _removeTmpFiles() + { + if (count($GLOBALS['_System_temp_files'])) { + $delete = $GLOBALS['_System_temp_files']; + array_unshift($delete, '-r'); + System::rm($delete); + $GLOBALS['_System_temp_files'] = array(); + } + } + + /** + * Get the path of the temporal directory set in the system + * by looking in its environments variables. + * Note: php.ini-recommended removes the "E" from the variables_order setting, + * making unavaible the $_ENV array, that s why we do tests with _ENV + * + * @static + * @return string The temporary directory on the system + */ + function tmpdir() + { + if (OS_WINDOWS) { + if ($var = isset($_ENV['TMP']) ? $_ENV['TMP'] : getenv('TMP')) { + return $var; + } + if ($var = isset($_ENV['TEMP']) ? $_ENV['TEMP'] : getenv('TEMP')) { + return $var; + } + if ($var = isset($_ENV['USERPROFILE']) ? $_ENV['USERPROFILE'] : getenv('USERPROFILE')) { + return $var; + } + if ($var = isset($_ENV['windir']) ? $_ENV['windir'] : getenv('windir')) { + return $var; + } + return getenv('SystemRoot') . '\temp'; + } + if ($var = isset($_ENV['TMPDIR']) ? $_ENV['TMPDIR'] : getenv('TMPDIR')) { + return $var; + } + return realpath('/tmp'); + } + + /** + * The "which" command (show the full path of a command) + * + * @param string $program The command to search for + * @param mixed $fallback Value to return if $program is not found + * + * @return mixed A string with the full path or false if not found + * @static + * @author Stig Bakken + */ + function which($program, $fallback = false) + { + // enforce API + if (!is_string($program) || '' == $program) { + return $fallback; + } + + // full path given + if (basename($program) != $program) { + $path_elements[] = dirname($program); + $program = basename($program); + } else { + // Honor safe mode + if (!ini_get('safe_mode') || !$path = ini_get('safe_mode_exec_dir')) { + $path = getenv('PATH'); + if (!$path) { + $path = getenv('Path'); // some OSes are just stupid enough to do this + } + } + $path_elements = explode(PATH_SEPARATOR, $path); + } + + if (OS_WINDOWS) { + $exe_suffixes = getenv('PATHEXT') + ? explode(PATH_SEPARATOR, getenv('PATHEXT')) + : array('.exe','.bat','.cmd','.com'); + // allow passing a command.exe param + if (strpos($program, '.') !== false) { + array_unshift($exe_suffixes, ''); + } + // is_executable() is not available on windows for PHP4 + $pear_is_executable = (function_exists('is_executable')) ? 'is_executable' : 'is_file'; + } else { + $exe_suffixes = array(''); + $pear_is_executable = 'is_executable'; + } + + foreach ($exe_suffixes as $suff) { + foreach ($path_elements as $dir) { + $file = $dir . DIRECTORY_SEPARATOR . $program . $suff; + if (@$pear_is_executable($file)) { + return $file; + } + } + } + return $fallback; + } + + /** + * The "find" command + * + * Usage: + * + * System::find($dir); + * System::find("$dir -type d"); + * System::find("$dir -type f"); + * System::find("$dir -name *.php"); + * System::find("$dir -name *.php -name *.htm*"); + * System::find("$dir -maxdepth 1"); + * + * Params implmented: + * $dir -> Start the search at this directory + * -type d -> return only directories + * -type f -> return only files + * -maxdepth -> max depth of recursion + * -name -> search pattern (bash style). Multiple -name param allowed + * + * @param mixed Either array or string with the command line + * @return array Array of found files + * @static + * + */ + function find($args) + { + if (!is_array($args)) { + $args = preg_split('/\s+/', $args, -1, PREG_SPLIT_NO_EMPTY); + } + $dir = realpath(array_shift($args)); + if (!$dir) { + return array(); + } + $patterns = array(); + $depth = 0; + $do_files = $do_dirs = true; + $args_count = count($args); + for ($i = 0; $i < $args_count; $i++) { + switch ($args[$i]) { + case '-type': + if (in_array($args[$i+1], array('d', 'f'))) { + if ($args[$i+1] == 'd') { + $do_files = false; + } else { + $do_dirs = false; + } + } + $i++; + break; + case '-name': + $name = preg_quote($args[$i+1], '#'); + // our magic characters ? and * have just been escaped, + // so now we change the escaped versions to PCRE operators + $name = strtr($name, array('\?' => '.', '\*' => '.*')); + $patterns[] = '('.$name.')'; + $i++; + break; + case '-maxdepth': + $depth = $args[$i+1]; + break; + } + } + $path = System::_dirToStruct($dir, $depth, 0, true); + if ($do_files && $do_dirs) { + $files = array_merge($path['files'], $path['dirs']); + } elseif ($do_dirs) { + $files = $path['dirs']; + } else { + $files = $path['files']; + } + if (count($patterns)) { + $dsq = preg_quote(DIRECTORY_SEPARATOR, '#'); + $pattern = '#(^|'.$dsq.')'.implode('|', $patterns).'($|'.$dsq.')#'; + $ret = array(); + $files_count = count($files); + for ($i = 0; $i < $files_count; $i++) { + // only search in the part of the file below the current directory + $filepart = basename($files[$i]); + if (preg_match($pattern, $filepart)) { + $ret[] = $files[$i]; + } + } + return $ret; + } + return $files; + } +} \ No newline at end of file