1 | <?php |
---|
2 | /** |
---|
3 | * PEAR, the PHP Extension and Application Repository |
---|
4 | * |
---|
5 | * PEAR class and PEAR_Error class |
---|
6 | * |
---|
7 | * PHP versions 4 and 5 |
---|
8 | * |
---|
9 | * @category pear |
---|
10 | * @package PEAR |
---|
11 | * @author Sterling Hughes <sterling@php.net> |
---|
12 | * @author Stig Bakken <ssb@php.net> |
---|
13 | * @author Tomas V.V.Cox <cox@idecnet.com> |
---|
14 | * @author Greg Beaver <cellog@php.net> |
---|
15 | * @copyright 1997-2010 The Authors |
---|
16 | * @license http://opensource.org/licenses/bsd-license.php New BSD License |
---|
17 | * @version CVS: $Id: PEAR.php 313023 2011-07-06 19:17:11Z dufuz $ |
---|
18 | * @link http://pear.php.net/package/PEAR |
---|
19 | * @since File available since Release 0.1 |
---|
20 | */ |
---|
21 | |
---|
22 | /**#@+ |
---|
23 | * ERROR constants |
---|
24 | */ |
---|
25 | define('PEAR_ERROR_RETURN', 1); |
---|
26 | define('PEAR_ERROR_PRINT', 2); |
---|
27 | define('PEAR_ERROR_TRIGGER', 4); |
---|
28 | define('PEAR_ERROR_DIE', 8); |
---|
29 | define('PEAR_ERROR_CALLBACK', 16); |
---|
30 | /** |
---|
31 | * WARNING: obsolete |
---|
32 | * @deprecated |
---|
33 | */ |
---|
34 | define('PEAR_ERROR_EXCEPTION', 32); |
---|
35 | /**#@-*/ |
---|
36 | define('PEAR_ZE2', (function_exists('version_compare') && |
---|
37 | version_compare(zend_version(), "2-dev", "ge"))); |
---|
38 | |
---|
39 | if (substr(PHP_OS, 0, 3) == 'WIN') { |
---|
40 | define('OS_WINDOWS', true); |
---|
41 | define('OS_UNIX', false); |
---|
42 | define('PEAR_OS', 'Windows'); |
---|
43 | } else { |
---|
44 | define('OS_WINDOWS', false); |
---|
45 | define('OS_UNIX', true); |
---|
46 | define('PEAR_OS', 'Unix'); // blatant assumption |
---|
47 | } |
---|
48 | |
---|
49 | $GLOBALS['_PEAR_default_error_mode'] = PEAR_ERROR_RETURN; |
---|
50 | $GLOBALS['_PEAR_default_error_options'] = E_USER_NOTICE; |
---|
51 | $GLOBALS['_PEAR_destructor_object_list'] = array(); |
---|
52 | $GLOBALS['_PEAR_shutdown_funcs'] = array(); |
---|
53 | $GLOBALS['_PEAR_error_handler_stack'] = array(); |
---|
54 | |
---|
55 | @ini_set('track_errors', true); |
---|
56 | |
---|
57 | /** |
---|
58 | * Base class for other PEAR classes. Provides rudimentary |
---|
59 | * emulation of destructors. |
---|
60 | * |
---|
61 | * If you want a destructor in your class, inherit PEAR and make a |
---|
62 | * destructor method called _yourclassname (same name as the |
---|
63 | * constructor, but with a "_" prefix). Also, in your constructor you |
---|
64 | * have to call the PEAR constructor: $this->PEAR();. |
---|
65 | * The destructor method will be called without parameters. Note that |
---|
66 | * at in some SAPI implementations (such as Apache), any output during |
---|
67 | * the request shutdown (in which destructors are called) seems to be |
---|
68 | * discarded. If you need to get any debug information from your |
---|
69 | * destructor, use error_log(), syslog() or something similar. |
---|
70 | * |
---|
71 | * IMPORTANT! To use the emulated destructors you need to create the |
---|
72 | * objects by reference: $obj =& new PEAR_child; |
---|
73 | * |
---|
74 | * @category pear |
---|
75 | * @package PEAR |
---|
76 | * @author Stig Bakken <ssb@php.net> |
---|
77 | * @author Tomas V.V. Cox <cox@idecnet.com> |
---|
78 | * @author Greg Beaver <cellog@php.net> |
---|
79 | * @copyright 1997-2006 The PHP Group |
---|
80 | * @license http://opensource.org/licenses/bsd-license.php New BSD License |
---|
81 | * @version Release: 1.9.4 |
---|
82 | * @link http://pear.php.net/package/PEAR |
---|
83 | * @see PEAR_Error |
---|
84 | * @since Class available since PHP 4.0.2 |
---|
85 | * @link http://pear.php.net/manual/en/core.pear.php#core.pear.pear |
---|
86 | */ |
---|
87 | class PEAR |
---|
88 | { |
---|
89 | /** |
---|
90 | * Whether to enable internal debug messages. |
---|
91 | * |
---|
92 | * @var bool |
---|
93 | * @access private |
---|
94 | */ |
---|
95 | var $_debug = false; |
---|
96 | |
---|
97 | /** |
---|
98 | * Default error mode for this object. |
---|
99 | * |
---|
100 | * @var int |
---|
101 | * @access private |
---|
102 | */ |
---|
103 | var $_default_error_mode = null; |
---|
104 | |
---|
105 | /** |
---|
106 | * Default error options used for this object when error mode |
---|
107 | * is PEAR_ERROR_TRIGGER. |
---|
108 | * |
---|
109 | * @var int |
---|
110 | * @access private |
---|
111 | */ |
---|
112 | var $_default_error_options = null; |
---|
113 | |
---|
114 | /** |
---|
115 | * Default error handler (callback) for this object, if error mode is |
---|
116 | * PEAR_ERROR_CALLBACK. |
---|
117 | * |
---|
118 | * @var string |
---|
119 | * @access private |
---|
120 | */ |
---|
121 | var $_default_error_handler = ''; |
---|
122 | |
---|
123 | /** |
---|
124 | * Which class to use for error objects. |
---|
125 | * |
---|
126 | * @var string |
---|
127 | * @access private |
---|
128 | */ |
---|
129 | var $_error_class = 'PEAR_Error'; |
---|
130 | |
---|
131 | /** |
---|
132 | * An array of expected errors. |
---|
133 | * |
---|
134 | * @var array |
---|
135 | * @access private |
---|
136 | */ |
---|
137 | var $_expected_errors = array(); |
---|
138 | |
---|
139 | /** |
---|
140 | * Constructor. Registers this object in |
---|
141 | * $_PEAR_destructor_object_list for destructor emulation if a |
---|
142 | * destructor object exists. |
---|
143 | * |
---|
144 | * @param string $error_class (optional) which class to use for |
---|
145 | * error objects, defaults to PEAR_Error. |
---|
146 | * @access public |
---|
147 | * @return void |
---|
148 | */ |
---|
149 | function PEAR($error_class = null) |
---|
150 | { |
---|
151 | $classname = strtolower(get_class($this)); |
---|
152 | if ($this->_debug) { |
---|
153 | print "PEAR constructor called, class=$classname\n"; |
---|
154 | } |
---|
155 | |
---|
156 | if ($error_class !== null) { |
---|
157 | $this->_error_class = $error_class; |
---|
158 | } |
---|
159 | |
---|
160 | while ($classname && strcasecmp($classname, "pear")) { |
---|
161 | $destructor = "_$classname"; |
---|
162 | if (method_exists($this, $destructor)) { |
---|
163 | global $_PEAR_destructor_object_list; |
---|
164 | $_PEAR_destructor_object_list[] = &$this; |
---|
165 | if (!isset($GLOBALS['_PEAR_SHUTDOWN_REGISTERED'])) { |
---|
166 | register_shutdown_function("_PEAR_call_destructors"); |
---|
167 | $GLOBALS['_PEAR_SHUTDOWN_REGISTERED'] = true; |
---|
168 | } |
---|
169 | break; |
---|
170 | } else { |
---|
171 | $classname = get_parent_class($classname); |
---|
172 | } |
---|
173 | } |
---|
174 | } |
---|
175 | |
---|
176 | /** |
---|
177 | * Destructor (the emulated type of...). Does nothing right now, |
---|
178 | * but is included for forward compatibility, so subclass |
---|
179 | * destructors should always call it. |
---|
180 | * |
---|
181 | * See the note in the class desciption about output from |
---|
182 | * destructors. |
---|
183 | * |
---|
184 | * @access public |
---|
185 | * @return void |
---|
186 | */ |
---|
187 | function _PEAR() { |
---|
188 | if ($this->_debug) { |
---|
189 | printf("PEAR destructor called, class=%s\n", strtolower(get_class($this))); |
---|
190 | } |
---|
191 | } |
---|
192 | |
---|
193 | /** |
---|
194 | * If you have a class that's mostly/entirely static, and you need static |
---|
195 | * properties, you can use this method to simulate them. Eg. in your method(s) |
---|
196 | * do this: $myVar = &PEAR::getStaticProperty('myclass', 'myVar'); |
---|
197 | * You MUST use a reference, or they will not persist! |
---|
198 | * |
---|
199 | * @access public |
---|
200 | * @param string $class The calling classname, to prevent clashes |
---|
201 | * @param string $var The variable to retrieve. |
---|
202 | * @return mixed A reference to the variable. If not set it will be |
---|
203 | * auto initialised to NULL. |
---|
204 | */ |
---|
205 | function &getStaticProperty($class, $var) |
---|
206 | { |
---|
207 | static $properties; |
---|
208 | if (!isset($properties[$class])) { |
---|
209 | $properties[$class] = array(); |
---|
210 | } |
---|
211 | |
---|
212 | if (!array_key_exists($var, $properties[$class])) { |
---|
213 | $properties[$class][$var] = null; |
---|
214 | } |
---|
215 | |
---|
216 | return $properties[$class][$var]; |
---|
217 | } |
---|
218 | |
---|
219 | /** |
---|
220 | * Use this function to register a shutdown method for static |
---|
221 | * classes. |
---|
222 | * |
---|
223 | * @access public |
---|
224 | * @param mixed $func The function name (or array of class/method) to call |
---|
225 | * @param mixed $args The arguments to pass to the function |
---|
226 | * @return void |
---|
227 | */ |
---|
228 | function registerShutdownFunc($func, $args = array()) |
---|
229 | { |
---|
230 | // if we are called statically, there is a potential |
---|
231 | // that no shutdown func is registered. Bug #6445 |
---|
232 | if (!isset($GLOBALS['_PEAR_SHUTDOWN_REGISTERED'])) { |
---|
233 | register_shutdown_function("_PEAR_call_destructors"); |
---|
234 | $GLOBALS['_PEAR_SHUTDOWN_REGISTERED'] = true; |
---|
235 | } |
---|
236 | $GLOBALS['_PEAR_shutdown_funcs'][] = array($func, $args); |
---|
237 | } |
---|
238 | |
---|
239 | /** |
---|
240 | * Tell whether a value is a PEAR error. |
---|
241 | * |
---|
242 | * @param mixed $data the value to test |
---|
243 | * @param int $code if $data is an error object, return true |
---|
244 | * only if $code is a string and |
---|
245 | * $obj->getMessage() == $code or |
---|
246 | * $code is an integer and $obj->getCode() == $code |
---|
247 | * @access public |
---|
248 | * @return bool true if parameter is an error |
---|
249 | */ |
---|
250 | function isError($data, $code = null) |
---|
251 | { |
---|
252 | if (!is_a($data, 'PEAR_Error')) { |
---|
253 | return false; |
---|
254 | } |
---|
255 | |
---|
256 | if (is_null($code)) { |
---|
257 | return true; |
---|
258 | } elseif (is_string($code)) { |
---|
259 | return $data->getMessage() == $code; |
---|
260 | } |
---|
261 | |
---|
262 | return $data->getCode() == $code; |
---|
263 | } |
---|
264 | |
---|
265 | /** |
---|
266 | * Sets how errors generated by this object should be handled. |
---|
267 | * Can be invoked both in objects and statically. If called |
---|
268 | * statically, setErrorHandling sets the default behaviour for all |
---|
269 | * PEAR objects. If called in an object, setErrorHandling sets |
---|
270 | * the default behaviour for that object. |
---|
271 | * |
---|
272 | * @param int $mode |
---|
273 | * One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT, |
---|
274 | * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE, |
---|
275 | * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION. |
---|
276 | * |
---|
277 | * @param mixed $options |
---|
278 | * When $mode is PEAR_ERROR_TRIGGER, this is the error level (one |
---|
279 | * of E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR). |
---|
280 | * |
---|
281 | * When $mode is PEAR_ERROR_CALLBACK, this parameter is expected |
---|
282 | * to be the callback function or method. A callback |
---|
283 | * function is a string with the name of the function, a |
---|
284 | * callback method is an array of two elements: the element |
---|
285 | * at index 0 is the object, and the element at index 1 is |
---|
286 | * the name of the method to call in the object. |
---|
287 | * |
---|
288 | * When $mode is PEAR_ERROR_PRINT or PEAR_ERROR_DIE, this is |
---|
289 | * a printf format string used when printing the error |
---|
290 | * message. |
---|
291 | * |
---|
292 | * @access public |
---|
293 | * @return void |
---|
294 | * @see PEAR_ERROR_RETURN |
---|
295 | * @see PEAR_ERROR_PRINT |
---|
296 | * @see PEAR_ERROR_TRIGGER |
---|
297 | * @see PEAR_ERROR_DIE |
---|
298 | * @see PEAR_ERROR_CALLBACK |
---|
299 | * @see PEAR_ERROR_EXCEPTION |
---|
300 | * |
---|
301 | * @since PHP 4.0.5 |
---|
302 | */ |
---|
303 | function setErrorHandling($mode = null, $options = null) |
---|
304 | { |
---|
305 | if (isset($this) && is_a($this, 'PEAR')) { |
---|
306 | $setmode = &$this->_default_error_mode; |
---|
307 | $setoptions = &$this->_default_error_options; |
---|
308 | } else { |
---|
309 | $setmode = &$GLOBALS['_PEAR_default_error_mode']; |
---|
310 | $setoptions = &$GLOBALS['_PEAR_default_error_options']; |
---|
311 | } |
---|
312 | |
---|
313 | switch ($mode) { |
---|
314 | case PEAR_ERROR_EXCEPTION: |
---|
315 | case PEAR_ERROR_RETURN: |
---|
316 | case PEAR_ERROR_PRINT: |
---|
317 | case PEAR_ERROR_TRIGGER: |
---|
318 | case PEAR_ERROR_DIE: |
---|
319 | case null: |
---|
320 | $setmode = $mode; |
---|
321 | $setoptions = $options; |
---|
322 | break; |
---|
323 | |
---|
324 | case PEAR_ERROR_CALLBACK: |
---|
325 | $setmode = $mode; |
---|
326 | // class/object method callback |
---|
327 | if (is_callable($options)) { |
---|
328 | $setoptions = $options; |
---|
329 | } else { |
---|
330 | trigger_error("invalid error callback", E_USER_WARNING); |
---|
331 | } |
---|
332 | break; |
---|
333 | |
---|
334 | default: |
---|
335 | trigger_error("invalid error mode", E_USER_WARNING); |
---|
336 | break; |
---|
337 | } |
---|
338 | } |
---|
339 | |
---|
340 | /** |
---|
341 | * This method is used to tell which errors you expect to get. |
---|
342 | * Expected errors are always returned with error mode |
---|
343 | * PEAR_ERROR_RETURN. Expected error codes are stored in a stack, |
---|
344 | * and this method pushes a new element onto it. The list of |
---|
345 | * expected errors are in effect until they are popped off the |
---|
346 | * stack with the popExpect() method. |
---|
347 | * |
---|
348 | * Note that this method can not be called statically |
---|
349 | * |
---|
350 | * @param mixed $code a single error code or an array of error codes to expect |
---|
351 | * |
---|
352 | * @return int the new depth of the "expected errors" stack |
---|
353 | * @access public |
---|
354 | */ |
---|
355 | function expectError($code = '*') |
---|
356 | { |
---|
357 | if (is_array($code)) { |
---|
358 | array_push($this->_expected_errors, $code); |
---|
359 | } else { |
---|
360 | array_push($this->_expected_errors, array($code)); |
---|
361 | } |
---|
362 | return count($this->_expected_errors); |
---|
363 | } |
---|
364 | |
---|
365 | /** |
---|
366 | * This method pops one element off the expected error codes |
---|
367 | * stack. |
---|
368 | * |
---|
369 | * @return array the list of error codes that were popped |
---|
370 | */ |
---|
371 | function popExpect() |
---|
372 | { |
---|
373 | return array_pop($this->_expected_errors); |
---|
374 | } |
---|
375 | |
---|
376 | /** |
---|
377 | * This method checks unsets an error code if available |
---|
378 | * |
---|
379 | * @param mixed error code |
---|
380 | * @return bool true if the error code was unset, false otherwise |
---|
381 | * @access private |
---|
382 | * @since PHP 4.3.0 |
---|
383 | */ |
---|
384 | function _checkDelExpect($error_code) |
---|
385 | { |
---|
386 | $deleted = false; |
---|
387 | foreach ($this->_expected_errors as $key => $error_array) { |
---|
388 | if (in_array($error_code, $error_array)) { |
---|
389 | unset($this->_expected_errors[$key][array_search($error_code, $error_array)]); |
---|
390 | $deleted = true; |
---|
391 | } |
---|
392 | |
---|
393 | // clean up empty arrays |
---|
394 | if (0 == count($this->_expected_errors[$key])) { |
---|
395 | unset($this->_expected_errors[$key]); |
---|
396 | } |
---|
397 | } |
---|
398 | |
---|
399 | return $deleted; |
---|
400 | } |
---|
401 | |
---|
402 | /** |
---|
403 | * This method deletes all occurences of the specified element from |
---|
404 | * the expected error codes stack. |
---|
405 | * |
---|
406 | * @param mixed $error_code error code that should be deleted |
---|
407 | * @return mixed list of error codes that were deleted or error |
---|
408 | * @access public |
---|
409 | * @since PHP 4.3.0 |
---|
410 | */ |
---|
411 | function delExpect($error_code) |
---|
412 | { |
---|
413 | $deleted = false; |
---|
414 | if ((is_array($error_code) && (0 != count($error_code)))) { |
---|
415 | // $error_code is a non-empty array here; we walk through it trying |
---|
416 | // to unset all values |
---|
417 | foreach ($error_code as $key => $error) { |
---|
418 | $deleted = $this->_checkDelExpect($error) ? true : false; |
---|
419 | } |
---|
420 | |
---|
421 | return $deleted ? true : PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME |
---|
422 | } elseif (!empty($error_code)) { |
---|
423 | // $error_code comes alone, trying to unset it |
---|
424 | if ($this->_checkDelExpect($error_code)) { |
---|
425 | return true; |
---|
426 | } |
---|
427 | |
---|
428 | return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME |
---|
429 | } |
---|
430 | |
---|
431 | // $error_code is empty |
---|
432 | return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME |
---|
433 | } |
---|
434 | |
---|
435 | /** |
---|
436 | * This method is a wrapper that returns an instance of the |
---|
437 | * configured error class with this object's default error |
---|
438 | * handling applied. If the $mode and $options parameters are not |
---|
439 | * specified, the object's defaults are used. |
---|
440 | * |
---|
441 | * @param mixed $message a text error message or a PEAR error object |
---|
442 | * |
---|
443 | * @param int $code a numeric error code (it is up to your class |
---|
444 | * to define these if you want to use codes) |
---|
445 | * |
---|
446 | * @param int $mode One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT, |
---|
447 | * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE, |
---|
448 | * PEAR_ERROR_CALLBACK, PEAR_ERROR_EXCEPTION. |
---|
449 | * |
---|
450 | * @param mixed $options If $mode is PEAR_ERROR_TRIGGER, this parameter |
---|
451 | * specifies the PHP-internal error level (one of |
---|
452 | * E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR). |
---|
453 | * If $mode is PEAR_ERROR_CALLBACK, this |
---|
454 | * parameter specifies the callback function or |
---|
455 | * method. In other error modes this parameter |
---|
456 | * is ignored. |
---|
457 | * |
---|
458 | * @param string $userinfo If you need to pass along for example debug |
---|
459 | * information, this parameter is meant for that. |
---|
460 | * |
---|
461 | * @param string $error_class The returned error object will be |
---|
462 | * instantiated from this class, if specified. |
---|
463 | * |
---|
464 | * @param bool $skipmsg If true, raiseError will only pass error codes, |
---|
465 | * the error message parameter will be dropped. |
---|
466 | * |
---|
467 | * @access public |
---|
468 | * @return object a PEAR error object |
---|
469 | * @see PEAR::setErrorHandling |
---|
470 | * @since PHP 4.0.5 |
---|
471 | */ |
---|
472 | function &raiseError($message = null, |
---|
473 | $code = null, |
---|
474 | $mode = null, |
---|
475 | $options = null, |
---|
476 | $userinfo = null, |
---|
477 | $error_class = null, |
---|
478 | $skipmsg = false) |
---|
479 | { |
---|
480 | // The error is yet a PEAR error object |
---|
481 | if (is_object($message)) { |
---|
482 | $code = $message->getCode(); |
---|
483 | $userinfo = $message->getUserInfo(); |
---|
484 | $error_class = $message->getType(); |
---|
485 | $message->error_message_prefix = ''; |
---|
486 | $message = $message->getMessage(); |
---|
487 | } |
---|
488 | |
---|
489 | if ( |
---|
490 | isset($this) && |
---|
491 | isset($this->_expected_errors) && |
---|
492 | count($this->_expected_errors) > 0 && |
---|
493 | count($exp = end($this->_expected_errors)) |
---|
494 | ) { |
---|
495 | if ($exp[0] == "*" || |
---|
496 | (is_int(reset($exp)) && in_array($code, $exp)) || |
---|
497 | (is_string(reset($exp)) && in_array($message, $exp)) |
---|
498 | ) { |
---|
499 | $mode = PEAR_ERROR_RETURN; |
---|
500 | } |
---|
501 | } |
---|
502 | |
---|
503 | // No mode given, try global ones |
---|
504 | if ($mode === null) { |
---|
505 | // Class error handler |
---|
506 | if (isset($this) && isset($this->_default_error_mode)) { |
---|
507 | $mode = $this->_default_error_mode; |
---|
508 | $options = $this->_default_error_options; |
---|
509 | // Global error handler |
---|
510 | } elseif (isset($GLOBALS['_PEAR_default_error_mode'])) { |
---|
511 | $mode = $GLOBALS['_PEAR_default_error_mode']; |
---|
512 | $options = $GLOBALS['_PEAR_default_error_options']; |
---|
513 | } |
---|
514 | } |
---|
515 | |
---|
516 | if ($error_class !== null) { |
---|
517 | $ec = $error_class; |
---|
518 | } elseif (isset($this) && isset($this->_error_class)) { |
---|
519 | $ec = $this->_error_class; |
---|
520 | } else { |
---|
521 | $ec = 'PEAR_Error'; |
---|
522 | } |
---|
523 | |
---|
524 | if (intval(PHP_VERSION) < 5) { |
---|
525 | // little non-eval hack to fix bug #12147 |
---|
526 | include 'PEAR/FixPHP5PEARWarnings.php'; |
---|
527 | return $a; |
---|
528 | } |
---|
529 | |
---|
530 | if ($skipmsg) { |
---|
531 | $a = new $ec($code, $mode, $options, $userinfo); |
---|
532 | } else { |
---|
533 | $a = new $ec($message, $code, $mode, $options, $userinfo); |
---|
534 | } |
---|
535 | |
---|
536 | return $a; |
---|
537 | } |
---|
538 | |
---|
539 | /** |
---|
540 | * Simpler form of raiseError with fewer options. In most cases |
---|
541 | * message, code and userinfo are enough. |
---|
542 | * |
---|
543 | * @param mixed $message a text error message or a PEAR error object |
---|
544 | * |
---|
545 | * @param int $code a numeric error code (it is up to your class |
---|
546 | * to define these if you want to use codes) |
---|
547 | * |
---|
548 | * @param string $userinfo If you need to pass along for example debug |
---|
549 | * information, this parameter is meant for that. |
---|
550 | * |
---|
551 | * @access public |
---|
552 | * @return object a PEAR error object |
---|
553 | * @see PEAR::raiseError |
---|
554 | */ |
---|
555 | function &throwError($message = null, $code = null, $userinfo = null) |
---|
556 | { |
---|
557 | if (isset($this) && is_a($this, 'PEAR')) { |
---|
558 | $a = &$this->raiseError($message, $code, null, null, $userinfo); |
---|
559 | return $a; |
---|
560 | } |
---|
561 | |
---|
562 | $a = &PEAR::raiseError($message, $code, null, null, $userinfo); |
---|
563 | return $a; |
---|
564 | } |
---|
565 | |
---|
566 | function staticPushErrorHandling($mode, $options = null) |
---|
567 | { |
---|
568 | $stack = &$GLOBALS['_PEAR_error_handler_stack']; |
---|
569 | $def_mode = &$GLOBALS['_PEAR_default_error_mode']; |
---|
570 | $def_options = &$GLOBALS['_PEAR_default_error_options']; |
---|
571 | $stack[] = array($def_mode, $def_options); |
---|
572 | switch ($mode) { |
---|
573 | case PEAR_ERROR_EXCEPTION: |
---|
574 | case PEAR_ERROR_RETURN: |
---|
575 | case PEAR_ERROR_PRINT: |
---|
576 | case PEAR_ERROR_TRIGGER: |
---|
577 | case PEAR_ERROR_DIE: |
---|
578 | case null: |
---|
579 | $def_mode = $mode; |
---|
580 | $def_options = $options; |
---|
581 | break; |
---|
582 | |
---|
583 | case PEAR_ERROR_CALLBACK: |
---|
584 | $def_mode = $mode; |
---|
585 | // class/object method callback |
---|
586 | if (is_callable($options)) { |
---|
587 | $def_options = $options; |
---|
588 | } else { |
---|
589 | trigger_error("invalid error callback", E_USER_WARNING); |
---|
590 | } |
---|
591 | break; |
---|
592 | |
---|
593 | default: |
---|
594 | trigger_error("invalid error mode", E_USER_WARNING); |
---|
595 | break; |
---|
596 | } |
---|
597 | $stack[] = array($mode, $options); |
---|
598 | return true; |
---|
599 | } |
---|
600 | |
---|
601 | function staticPopErrorHandling() |
---|
602 | { |
---|
603 | $stack = &$GLOBALS['_PEAR_error_handler_stack']; |
---|
604 | $setmode = &$GLOBALS['_PEAR_default_error_mode']; |
---|
605 | $setoptions = &$GLOBALS['_PEAR_default_error_options']; |
---|
606 | array_pop($stack); |
---|
607 | list($mode, $options) = $stack[sizeof($stack) - 1]; |
---|
608 | array_pop($stack); |
---|
609 | switch ($mode) { |
---|
610 | case PEAR_ERROR_EXCEPTION: |
---|
611 | case PEAR_ERROR_RETURN: |
---|
612 | case PEAR_ERROR_PRINT: |
---|
613 | case PEAR_ERROR_TRIGGER: |
---|
614 | case PEAR_ERROR_DIE: |
---|
615 | case null: |
---|
616 | $setmode = $mode; |
---|
617 | $setoptions = $options; |
---|
618 | break; |
---|
619 | |
---|
620 | case PEAR_ERROR_CALLBACK: |
---|
621 | $setmode = $mode; |
---|
622 | // class/object method callback |
---|
623 | if (is_callable($options)) { |
---|
624 | $setoptions = $options; |
---|
625 | } else { |
---|
626 | trigger_error("invalid error callback", E_USER_WARNING); |
---|
627 | } |
---|
628 | break; |
---|
629 | |
---|
630 | default: |
---|
631 | trigger_error("invalid error mode", E_USER_WARNING); |
---|
632 | break; |
---|
633 | } |
---|
634 | return true; |
---|
635 | } |
---|
636 | |
---|
637 | /** |
---|
638 | * Push a new error handler on top of the error handler options stack. With this |
---|
639 | * you can easily override the actual error handler for some code and restore |
---|
640 | * it later with popErrorHandling. |
---|
641 | * |
---|
642 | * @param mixed $mode (same as setErrorHandling) |
---|
643 | * @param mixed $options (same as setErrorHandling) |
---|
644 | * |
---|
645 | * @return bool Always true |
---|
646 | * |
---|
647 | * @see PEAR::setErrorHandling |
---|
648 | */ |
---|
649 | function pushErrorHandling($mode, $options = null) |
---|
650 | { |
---|
651 | $stack = &$GLOBALS['_PEAR_error_handler_stack']; |
---|
652 | if (isset($this) && is_a($this, 'PEAR')) { |
---|
653 | $def_mode = &$this->_default_error_mode; |
---|
654 | $def_options = &$this->_default_error_options; |
---|
655 | } else { |
---|
656 | $def_mode = &$GLOBALS['_PEAR_default_error_mode']; |
---|
657 | $def_options = &$GLOBALS['_PEAR_default_error_options']; |
---|
658 | } |
---|
659 | $stack[] = array($def_mode, $def_options); |
---|
660 | |
---|
661 | if (isset($this) && is_a($this, 'PEAR')) { |
---|
662 | $this->setErrorHandling($mode, $options); |
---|
663 | } else { |
---|
664 | PEAR::setErrorHandling($mode, $options); |
---|
665 | } |
---|
666 | $stack[] = array($mode, $options); |
---|
667 | return true; |
---|
668 | } |
---|
669 | |
---|
670 | /** |
---|
671 | * Pop the last error handler used |
---|
672 | * |
---|
673 | * @return bool Always true |
---|
674 | * |
---|
675 | * @see PEAR::pushErrorHandling |
---|
676 | */ |
---|
677 | function popErrorHandling() |
---|
678 | { |
---|
679 | $stack = &$GLOBALS['_PEAR_error_handler_stack']; |
---|
680 | array_pop($stack); |
---|
681 | list($mode, $options) = $stack[sizeof($stack) - 1]; |
---|
682 | array_pop($stack); |
---|
683 | if (isset($this) && is_a($this, 'PEAR')) { |
---|
684 | $this->setErrorHandling($mode, $options); |
---|
685 | } else { |
---|
686 | PEAR::setErrorHandling($mode, $options); |
---|
687 | } |
---|
688 | return true; |
---|
689 | } |
---|
690 | |
---|
691 | /** |
---|
692 | * OS independant PHP extension load. Remember to take care |
---|
693 | * on the correct extension name for case sensitive OSes. |
---|
694 | * |
---|
695 | * @param string $ext The extension name |
---|
696 | * @return bool Success or not on the dl() call |
---|
697 | */ |
---|
698 | function loadExtension($ext) |
---|
699 | { |
---|
700 | if (extension_loaded($ext)) { |
---|
701 | return true; |
---|
702 | } |
---|
703 | |
---|
704 | // if either returns true dl() will produce a FATAL error, stop that |
---|
705 | if ( |
---|
706 | function_exists('dl') === false || |
---|
707 | ini_get('enable_dl') != 1 || |
---|
708 | ini_get('safe_mode') == 1 |
---|
709 | ) { |
---|
710 | return false; |
---|
711 | } |
---|
712 | |
---|
713 | if (OS_WINDOWS) { |
---|
714 | $suffix = '.dll'; |
---|
715 | } elseif (PHP_OS == 'HP-UX') { |
---|
716 | $suffix = '.sl'; |
---|
717 | } elseif (PHP_OS == 'AIX') { |
---|
718 | $suffix = '.a'; |
---|
719 | } elseif (PHP_OS == 'OSX') { |
---|
720 | $suffix = '.bundle'; |
---|
721 | } else { |
---|
722 | $suffix = '.so'; |
---|
723 | } |
---|
724 | |
---|
725 | return @dl('php_'.$ext.$suffix) || @dl($ext.$suffix); |
---|
726 | } |
---|
727 | } |
---|
728 | |
---|
729 | if (PEAR_ZE2) { |
---|
730 | include_once dirname(__FILE__).'/PEAR5.php'; |
---|
731 | } |
---|
732 | |
---|
733 | function _PEAR_call_destructors() |
---|
734 | { |
---|
735 | global $_PEAR_destructor_object_list; |
---|
736 | if (is_array($_PEAR_destructor_object_list) && |
---|
737 | sizeof($_PEAR_destructor_object_list)) |
---|
738 | { |
---|
739 | reset($_PEAR_destructor_object_list); |
---|
740 | if (PEAR_ZE2) { |
---|
741 | $destructLifoExists = PEAR5::getStaticProperty('PEAR', 'destructlifo'); |
---|
742 | } else { |
---|
743 | $destructLifoExists = PEAR::getStaticProperty('PEAR', 'destructlifo'); |
---|
744 | } |
---|
745 | |
---|
746 | if ($destructLifoExists) { |
---|
747 | $_PEAR_destructor_object_list = array_reverse($_PEAR_destructor_object_list); |
---|
748 | } |
---|
749 | |
---|
750 | while (list($k, $objref) = each($_PEAR_destructor_object_list)) { |
---|
751 | $classname = get_class($objref); |
---|
752 | while ($classname) { |
---|
753 | $destructor = "_$classname"; |
---|
754 | if (method_exists($objref, $destructor)) { |
---|
755 | $objref->$destructor(); |
---|
756 | break; |
---|
757 | } else { |
---|
758 | $classname = get_parent_class($classname); |
---|
759 | } |
---|
760 | } |
---|
761 | } |
---|
762 | // Empty the object list to ensure that destructors are |
---|
763 | // not called more than once. |
---|
764 | $_PEAR_destructor_object_list = array(); |
---|
765 | } |
---|
766 | |
---|
767 | // Now call the shutdown functions |
---|
768 | if ( |
---|
769 | isset($GLOBALS['_PEAR_shutdown_funcs']) && |
---|
770 | is_array($GLOBALS['_PEAR_shutdown_funcs']) && |
---|
771 | !empty($GLOBALS['_PEAR_shutdown_funcs']) |
---|
772 | ) { |
---|
773 | foreach ($GLOBALS['_PEAR_shutdown_funcs'] as $value) { |
---|
774 | call_user_func_array($value[0], $value[1]); |
---|
775 | } |
---|
776 | } |
---|
777 | } |
---|
778 | |
---|
779 | /** |
---|
780 | * Standard PEAR error class for PHP 4 |
---|
781 | * |
---|
782 | * This class is supserseded by {@link PEAR_Exception} in PHP 5 |
---|
783 | * |
---|
784 | * @category pear |
---|
785 | * @package PEAR |
---|
786 | * @author Stig Bakken <ssb@php.net> |
---|
787 | * @author Tomas V.V. Cox <cox@idecnet.com> |
---|
788 | * @author Gregory Beaver <cellog@php.net> |
---|
789 | * @copyright 1997-2006 The PHP Group |
---|
790 | * @license http://opensource.org/licenses/bsd-license.php New BSD License |
---|
791 | * @version Release: 1.9.4 |
---|
792 | * @link http://pear.php.net/manual/en/core.pear.pear-error.php |
---|
793 | * @see PEAR::raiseError(), PEAR::throwError() |
---|
794 | * @since Class available since PHP 4.0.2 |
---|
795 | */ |
---|
796 | class PEAR_Error |
---|
797 | { |
---|
798 | var $error_message_prefix = ''; |
---|
799 | var $mode = PEAR_ERROR_RETURN; |
---|
800 | var $level = E_USER_NOTICE; |
---|
801 | var $code = -1; |
---|
802 | var $message = ''; |
---|
803 | var $userinfo = ''; |
---|
804 | var $backtrace = null; |
---|
805 | |
---|
806 | /** |
---|
807 | * PEAR_Error constructor |
---|
808 | * |
---|
809 | * @param string $message message |
---|
810 | * |
---|
811 | * @param int $code (optional) error code |
---|
812 | * |
---|
813 | * @param int $mode (optional) error mode, one of: PEAR_ERROR_RETURN, |
---|
814 | * PEAR_ERROR_PRINT, PEAR_ERROR_DIE, PEAR_ERROR_TRIGGER, |
---|
815 | * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION |
---|
816 | * |
---|
817 | * @param mixed $options (optional) error level, _OR_ in the case of |
---|
818 | * PEAR_ERROR_CALLBACK, the callback function or object/method |
---|
819 | * tuple. |
---|
820 | * |
---|
821 | * @param string $userinfo (optional) additional user/debug info |
---|
822 | * |
---|
823 | * @access public |
---|
824 | * |
---|
825 | */ |
---|
826 | function PEAR_Error($message = 'unknown error', $code = null, |
---|
827 | $mode = null, $options = null, $userinfo = null) |
---|
828 | { |
---|
829 | if ($mode === null) { |
---|
830 | $mode = PEAR_ERROR_RETURN; |
---|
831 | } |
---|
832 | $this->message = $message; |
---|
833 | $this->code = $code; |
---|
834 | $this->mode = $mode; |
---|
835 | $this->userinfo = $userinfo; |
---|
836 | |
---|
837 | if (PEAR_ZE2) { |
---|
838 | $skiptrace = PEAR5::getStaticProperty('PEAR_Error', 'skiptrace'); |
---|
839 | } else { |
---|
840 | $skiptrace = PEAR::getStaticProperty('PEAR_Error', 'skiptrace'); |
---|
841 | } |
---|
842 | |
---|
843 | if (!$skiptrace) { |
---|
844 | $this->backtrace = debug_backtrace(); |
---|
845 | if (isset($this->backtrace[0]) && isset($this->backtrace[0]['object'])) { |
---|
846 | unset($this->backtrace[0]['object']); |
---|
847 | } |
---|
848 | } |
---|
849 | |
---|
850 | if ($mode & PEAR_ERROR_CALLBACK) { |
---|
851 | $this->level = E_USER_NOTICE; |
---|
852 | $this->callback = $options; |
---|
853 | } else { |
---|
854 | if ($options === null) { |
---|
855 | $options = E_USER_NOTICE; |
---|
856 | } |
---|
857 | |
---|
858 | $this->level = $options; |
---|
859 | $this->callback = null; |
---|
860 | } |
---|
861 | |
---|
862 | if ($this->mode & PEAR_ERROR_PRINT) { |
---|
863 | if (is_null($options) || is_int($options)) { |
---|
864 | $format = "%s"; |
---|
865 | } else { |
---|
866 | $format = $options; |
---|
867 | } |
---|
868 | |
---|
869 | printf($format, $this->getMessage()); |
---|
870 | } |
---|
871 | |
---|
872 | if ($this->mode & PEAR_ERROR_TRIGGER) { |
---|
873 | trigger_error($this->getMessage(), $this->level); |
---|
874 | } |
---|
875 | |
---|
876 | if ($this->mode & PEAR_ERROR_DIE) { |
---|
877 | $msg = $this->getMessage(); |
---|
878 | if (is_null($options) || is_int($options)) { |
---|
879 | $format = "%s"; |
---|
880 | if (substr($msg, -1) != "\n") { |
---|
881 | $msg .= "\n"; |
---|
882 | } |
---|
883 | } else { |
---|
884 | $format = $options; |
---|
885 | } |
---|
886 | die(sprintf($format, $msg)); |
---|
887 | } |
---|
888 | |
---|
889 | if ($this->mode & PEAR_ERROR_CALLBACK && is_callable($this->callback)) { |
---|
890 | call_user_func($this->callback, $this); |
---|
891 | } |
---|
892 | |
---|
893 | if ($this->mode & PEAR_ERROR_EXCEPTION) { |
---|
894 | trigger_error("PEAR_ERROR_EXCEPTION is obsolete, use class PEAR_Exception for exceptions", E_USER_WARNING); |
---|
895 | eval('$e = new Exception($this->message, $this->code);throw($e);'); |
---|
896 | } |
---|
897 | } |
---|
898 | |
---|
899 | /** |
---|
900 | * Get the error mode from an error object. |
---|
901 | * |
---|
902 | * @return int error mode |
---|
903 | * @access public |
---|
904 | */ |
---|
905 | function getMode() |
---|
906 | { |
---|
907 | return $this->mode; |
---|
908 | } |
---|
909 | |
---|
910 | /** |
---|
911 | * Get the callback function/method from an error object. |
---|
912 | * |
---|
913 | * @return mixed callback function or object/method array |
---|
914 | * @access public |
---|
915 | */ |
---|
916 | function getCallback() |
---|
917 | { |
---|
918 | return $this->callback; |
---|
919 | } |
---|
920 | |
---|
921 | /** |
---|
922 | * Get the error message from an error object. |
---|
923 | * |
---|
924 | * @return string full error message |
---|
925 | * @access public |
---|
926 | */ |
---|
927 | function getMessage() |
---|
928 | { |
---|
929 | return ($this->error_message_prefix . $this->message); |
---|
930 | } |
---|
931 | |
---|
932 | /** |
---|
933 | * Get error code from an error object |
---|
934 | * |
---|
935 | * @return int error code |
---|
936 | * @access public |
---|
937 | */ |
---|
938 | function getCode() |
---|
939 | { |
---|
940 | return $this->code; |
---|
941 | } |
---|
942 | |
---|
943 | /** |
---|
944 | * Get the name of this error/exception. |
---|
945 | * |
---|
946 | * @return string error/exception name (type) |
---|
947 | * @access public |
---|
948 | */ |
---|
949 | function getType() |
---|
950 | { |
---|
951 | return get_class($this); |
---|
952 | } |
---|
953 | |
---|
954 | /** |
---|
955 | * Get additional user-supplied information. |
---|
956 | * |
---|
957 | * @return string user-supplied information |
---|
958 | * @access public |
---|
959 | */ |
---|
960 | function getUserInfo() |
---|
961 | { |
---|
962 | return $this->userinfo; |
---|
963 | } |
---|
964 | |
---|
965 | /** |
---|
966 | * Get additional debug information supplied by the application. |
---|
967 | * |
---|
968 | * @return string debug information |
---|
969 | * @access public |
---|
970 | */ |
---|
971 | function getDebugInfo() |
---|
972 | { |
---|
973 | return $this->getUserInfo(); |
---|
974 | } |
---|
975 | |
---|
976 | /** |
---|
977 | * Get the call backtrace from where the error was generated. |
---|
978 | * Supported with PHP 4.3.0 or newer. |
---|
979 | * |
---|
980 | * @param int $frame (optional) what frame to fetch |
---|
981 | * @return array Backtrace, or NULL if not available. |
---|
982 | * @access public |
---|
983 | */ |
---|
984 | function getBacktrace($frame = null) |
---|
985 | { |
---|
986 | if (defined('PEAR_IGNORE_BACKTRACE')) { |
---|
987 | return null; |
---|
988 | } |
---|
989 | if ($frame === null) { |
---|
990 | return $this->backtrace; |
---|
991 | } |
---|
992 | return $this->backtrace[$frame]; |
---|
993 | } |
---|
994 | |
---|
995 | function addUserInfo($info) |
---|
996 | { |
---|
997 | if (empty($this->userinfo)) { |
---|
998 | $this->userinfo = $info; |
---|
999 | } else { |
---|
1000 | $this->userinfo .= " ** $info"; |
---|
1001 | } |
---|
1002 | } |
---|
1003 | |
---|
1004 | function __toString() |
---|
1005 | { |
---|
1006 | return $this->getMessage(); |
---|
1007 | } |
---|
1008 | |
---|
1009 | /** |
---|
1010 | * Make a string representation of this object. |
---|
1011 | * |
---|
1012 | * @return string a string with an object summary |
---|
1013 | * @access public |
---|
1014 | */ |
---|
1015 | function toString() |
---|
1016 | { |
---|
1017 | $modes = array(); |
---|
1018 | $levels = array(E_USER_NOTICE => 'notice', |
---|
1019 | E_USER_WARNING => 'warning', |
---|
1020 | E_USER_ERROR => 'error'); |
---|
1021 | if ($this->mode & PEAR_ERROR_CALLBACK) { |
---|
1022 | if (is_array($this->callback)) { |
---|
1023 | $callback = (is_object($this->callback[0]) ? |
---|
1024 | strtolower(get_class($this->callback[0])) : |
---|
1025 | $this->callback[0]) . '::' . |
---|
1026 | $this->callback[1]; |
---|
1027 | } else { |
---|
1028 | $callback = $this->callback; |
---|
1029 | } |
---|
1030 | return sprintf('[%s: message="%s" code=%d mode=callback '. |
---|
1031 | 'callback=%s prefix="%s" info="%s"]', |
---|
1032 | strtolower(get_class($this)), $this->message, $this->code, |
---|
1033 | $callback, $this->error_message_prefix, |
---|
1034 | $this->userinfo); |
---|
1035 | } |
---|
1036 | if ($this->mode & PEAR_ERROR_PRINT) { |
---|
1037 | $modes[] = 'print'; |
---|
1038 | } |
---|
1039 | if ($this->mode & PEAR_ERROR_TRIGGER) { |
---|
1040 | $modes[] = 'trigger'; |
---|
1041 | } |
---|
1042 | if ($this->mode & PEAR_ERROR_DIE) { |
---|
1043 | $modes[] = 'die'; |
---|
1044 | } |
---|
1045 | if ($this->mode & PEAR_ERROR_RETURN) { |
---|
1046 | $modes[] = 'return'; |
---|
1047 | } |
---|
1048 | return sprintf('[%s: message="%s" code=%d mode=%s level=%s '. |
---|
1049 | 'prefix="%s" info="%s"]', |
---|
1050 | strtolower(get_class($this)), $this->message, $this->code, |
---|
1051 | implode("|", $modes), $levels[$this->level], |
---|
1052 | $this->error_message_prefix, |
---|
1053 | $this->userinfo); |
---|
1054 | } |
---|
1055 | } |
---|
1056 | |
---|
1057 | /* |
---|
1058 | * Local Variables: |
---|
1059 | * mode: php |
---|
1060 | * tab-width: 4 |
---|
1061 | * c-basic-offset: 4 |
---|
1062 | * End: |
---|
1063 | */ |
---|