commit | author | age
|
cc97ea
|
1 |
<?php |
T |
2 |
|
|
3 |
/* |
|
4 |
+-----------------------------------------------------------------------+ |
|
5 |
| program/include/rcube_plugin_api.php | |
|
6 |
| | |
e019f2
|
7 |
| This file is part of the Roundcube Webmail client | |
3a7dec
|
8 |
| Copyright (C) 2008-2011, The Roundcube Dev Team | |
7fe381
|
9 |
| | |
T |
10 |
| Licensed under the GNU General Public License version 3 or | |
|
11 |
| any later version with exceptions for skins & plugins. | |
|
12 |
| See the README file for a full license statement. | |
cc97ea
|
13 |
| | |
T |
14 |
| PURPOSE: | |
|
15 |
| Plugins repository | |
|
16 |
| | |
|
17 |
+-----------------------------------------------------------------------+ |
|
18 |
| Author: Thomas Bruederli <roundcube@gmail.com> | |
|
19 |
+-----------------------------------------------------------------------+ |
|
20 |
*/ |
|
21 |
|
0c2596
|
22 |
// location where plugins are loade from |
9be2f4
|
23 |
if (!defined('RCUBE_PLUGINS_DIR')) |
TB |
24 |
define('RCUBE_PLUGINS_DIR', RCUBE_INSTALL_PATH . 'plugins/'); |
0c2596
|
25 |
|
A |
26 |
|
cc97ea
|
27 |
/** |
T |
28 |
* The plugin loader and global API |
|
29 |
* |
9ab346
|
30 |
* @package Framework |
AM |
31 |
* @subpackage PluginAPI |
cc97ea
|
32 |
*/ |
T |
33 |
class rcube_plugin_api |
|
34 |
{ |
53f4b9
|
35 |
static protected $instance; |
413df0
|
36 |
|
cc97ea
|
37 |
public $dir; |
T |
38 |
public $url = 'plugins/'; |
0c2596
|
39 |
public $task = ''; |
cc97ea
|
40 |
public $output; |
413df0
|
41 |
|
cc97ea
|
42 |
public $handlers = array(); |
53f4b9
|
43 |
protected $plugins = array(); |
AM |
44 |
protected $tasks = array(); |
|
45 |
protected $actions = array(); |
|
46 |
protected $actionmap = array(); |
|
47 |
protected $objectsmap = array(); |
|
48 |
protected $template_contents = array(); |
|
49 |
protected $active_hook = false; |
cc97ea
|
50 |
|
e6ce00
|
51 |
// Deprecated names of hooks, will be removed after 0.5-stable release |
53f4b9
|
52 |
protected $deprecated_hooks = array( |
e6ce00
|
53 |
'create_user' => 'user_create', |
A |
54 |
'kill_session' => 'session_destroy', |
|
55 |
'upload_attachment' => 'attachment_upload', |
|
56 |
'save_attachment' => 'attachment_save', |
|
57 |
'get_attachment' => 'attachment_get', |
|
58 |
'cleanup_attachments' => 'attachments_cleanup', |
|
59 |
'display_attachment' => 'attachment_display', |
|
60 |
'remove_attachment' => 'attachment_delete', |
|
61 |
'outgoing_message_headers' => 'message_outgoing_headers', |
|
62 |
'outgoing_message_body' => 'message_outgoing_body', |
|
63 |
'address_sources' => 'addressbooks_list', |
|
64 |
'get_address_book' => 'addressbook_get', |
|
65 |
'create_contact' => 'contact_create', |
119ad1
|
66 |
'save_contact' => 'contact_update', |
A |
67 |
'contact_save' => 'contact_update', |
e6ce00
|
68 |
'delete_contact' => 'contact_delete', |
A |
69 |
'manage_folders' => 'folders_list', |
|
70 |
'list_mailboxes' => 'mailboxes_list', |
|
71 |
'save_preferences' => 'preferences_save', |
|
72 |
'user_preferences' => 'preferences_list', |
|
73 |
'list_prefs_sections' => 'preferences_sections_list', |
|
74 |
'list_identities' => 'identities_list', |
|
75 |
'create_identity' => 'identity_create', |
119ad1
|
76 |
'delete_identity' => 'identity_delete', |
A |
77 |
'save_identity' => 'identity_update', |
|
78 |
'identity_save' => 'identity_update', |
b3ad48
|
79 |
// to be removed after 0.8 |
a2c495
|
80 |
'imap_init' => 'storage_init', |
b3ad48
|
81 |
'mailboxes_list' => 'storage_folders', |
e6ce00
|
82 |
); |
A |
83 |
|
cc97ea
|
84 |
/** |
T |
85 |
* This implements the 'singleton' design pattern |
|
86 |
* |
5c461b
|
87 |
* @return rcube_plugin_api The one and only instance if this class |
cc97ea
|
88 |
*/ |
T |
89 |
static function get_instance() |
|
90 |
{ |
|
91 |
if (!self::$instance) { |
|
92 |
self::$instance = new rcube_plugin_api(); |
|
93 |
} |
|
94 |
|
|
95 |
return self::$instance; |
|
96 |
} |
8ec1b9
|
97 |
|
A |
98 |
|
cc97ea
|
99 |
/** |
T |
100 |
* Private constructor |
|
101 |
*/ |
53f4b9
|
102 |
protected function __construct() |
cc97ea
|
103 |
{ |
9be2f4
|
104 |
$this->dir = slashify(RCUBE_PLUGINS_DIR); |
0c2596
|
105 |
} |
A |
106 |
|
|
107 |
|
|
108 |
/** |
|
109 |
* Initialize plugin engine |
|
110 |
* |
|
111 |
* This has to be done after rcmail::load_gui() or rcmail::json_init() |
|
112 |
* was called because plugins need to have access to rcmail->output |
|
113 |
* |
|
114 |
* @param object rcube Instance of the rcube base class |
|
115 |
* @param string Current application task (used for conditional plugin loading) |
|
116 |
*/ |
|
117 |
public function init($app, $task = '') |
|
118 |
{ |
|
119 |
$this->task = $task; |
|
120 |
$this->output = $app->output; |
|
121 |
|
|
122 |
// register an internal hook |
|
123 |
$this->register_hook('template_container', array($this, 'template_container_hook')); |
|
124 |
|
|
125 |
// maybe also register a shudown function which triggers shutdown functions of all plugin objects |
cc97ea
|
126 |
} |
8ec1b9
|
127 |
|
A |
128 |
|
cc97ea
|
129 |
/** |
T |
130 |
* Load and init all enabled plugins |
|
131 |
* |
929a50
|
132 |
* This has to be done after rcmail::load_gui() or rcmail::json_init() |
cc97ea
|
133 |
* was called because plugins need to have access to rcmail->output |
0c2596
|
134 |
* |
A |
135 |
* @param array List of configured plugins to load |
|
136 |
* @param array List of plugins required by the application |
cc97ea
|
137 |
*/ |
0c2596
|
138 |
public function load_plugins($plugins_enabled, $required_plugins = array()) |
cc97ea
|
139 |
{ |
T |
140 |
foreach ($plugins_enabled as $plugin_name) { |
0501b6
|
141 |
$this->load_plugin($plugin_name); |
cc97ea
|
142 |
} |
8ec1b9
|
143 |
|
cc97ea
|
144 |
// check existance of all required core plugins |
0c2596
|
145 |
foreach ($required_plugins as $plugin_name) { |
cc97ea
|
146 |
$loaded = false; |
T |
147 |
foreach ($this->plugins as $plugin) { |
|
148 |
if ($plugin instanceof $plugin_name) { |
|
149 |
$loaded = true; |
|
150 |
break; |
|
151 |
} |
|
152 |
} |
8ec1b9
|
153 |
|
cc97ea
|
154 |
// load required core plugin if no derivate was found |
0501b6
|
155 |
if (!$loaded) |
T |
156 |
$loaded = $this->load_plugin($plugin_name); |
d5d968
|
157 |
|
cc97ea
|
158 |
// trigger fatal error if still not loaded |
T |
159 |
if (!$loaded) { |
0c2596
|
160 |
rcube::raise_error(array('code' => 520, 'type' => 'php', |
0501b6
|
161 |
'file' => __FILE__, 'line' => __LINE__, |
T |
162 |
'message' => "Requried plugin $plugin_name was not loaded"), true, true); |
cc97ea
|
163 |
} |
T |
164 |
} |
|
165 |
} |
0501b6
|
166 |
|
T |
167 |
/** |
|
168 |
* Load the specified plugin |
|
169 |
* |
|
170 |
* @param string Plugin name |
|
171 |
* @return boolean True on success, false if not loaded or failure |
|
172 |
*/ |
|
173 |
public function load_plugin($plugin_name) |
|
174 |
{ |
|
175 |
static $plugins_dir; |
8ec1b9
|
176 |
|
0501b6
|
177 |
if (!$plugins_dir) { |
T |
178 |
$dir = dir($this->dir); |
|
179 |
$plugins_dir = unslashify($dir->path); |
|
180 |
} |
8ec1b9
|
181 |
|
0501b6
|
182 |
// plugin already loaded |
T |
183 |
if ($this->plugins[$plugin_name] || class_exists($plugin_name, false)) |
|
184 |
return true; |
8ec1b9
|
185 |
|
0501b6
|
186 |
$fn = $plugins_dir . DIRECTORY_SEPARATOR . $plugin_name . DIRECTORY_SEPARATOR . $plugin_name . '.php'; |
T |
187 |
|
|
188 |
if (file_exists($fn)) { |
|
189 |
include($fn); |
|
190 |
|
|
191 |
// instantiate class if exists |
|
192 |
if (class_exists($plugin_name, false)) { |
|
193 |
$plugin = new $plugin_name($this); |
|
194 |
// check inheritance... |
|
195 |
if (is_subclass_of($plugin, 'rcube_plugin')) { |
|
196 |
// ... task, request type and framed mode |
0c2596
|
197 |
if ((!$plugin->task || preg_match('/^('.$plugin->task.')$/i', $this->task)) |
A |
198 |
&& (!$plugin->noajax || (is_object($this->output) && $this->output->type == 'html')) |
8ec1b9
|
199 |
&& (!$plugin->noframe || empty($_REQUEST['_framed'])) |
0501b6
|
200 |
) { |
T |
201 |
$plugin->init(); |
|
202 |
$this->plugins[$plugin_name] = $plugin; |
|
203 |
} |
|
204 |
return true; |
|
205 |
} |
|
206 |
} |
|
207 |
else { |
0c2596
|
208 |
rcube::raise_error(array('code' => 520, 'type' => 'php', |
0501b6
|
209 |
'file' => __FILE__, 'line' => __LINE__, |
T |
210 |
'message' => "No plugin class $plugin_name found in $fn"), true, false); |
|
211 |
} |
|
212 |
} |
|
213 |
else { |
0c2596
|
214 |
rcube::raise_error(array('code' => 520, 'type' => 'php', |
0501b6
|
215 |
'file' => __FILE__, 'line' => __LINE__, |
T |
216 |
'message' => "Failed to load plugin file $fn"), true, false); |
|
217 |
} |
8ec1b9
|
218 |
|
0501b6
|
219 |
return false; |
T |
220 |
} |
8ec1b9
|
221 |
|
A |
222 |
|
cc97ea
|
223 |
/** |
T |
224 |
* Allows a plugin object to register a callback for a certain hook |
|
225 |
* |
5c461b
|
226 |
* @param string $hook Hook name |
A |
227 |
* @param mixed $callback String with global function name or array($obj, 'methodname') |
cc97ea
|
228 |
*/ |
T |
229 |
public function register_hook($hook, $callback) |
|
230 |
{ |
e6ce00
|
231 |
if (is_callable($callback)) { |
A |
232 |
if (isset($this->deprecated_hooks[$hook])) { |
0c2596
|
233 |
rcube::raise_error(array('code' => 522, 'type' => 'php', |
e6ce00
|
234 |
'file' => __FILE__, 'line' => __LINE__, |
A |
235 |
'message' => "Deprecated hook name. ".$hook.' -> '.$this->deprecated_hooks[$hook]), true, false); |
|
236 |
$hook = $this->deprecated_hooks[$hook]; |
|
237 |
} |
cc97ea
|
238 |
$this->handlers[$hook][] = $callback; |
e6ce00
|
239 |
} |
cc97ea
|
240 |
else |
0c2596
|
241 |
rcube::raise_error(array('code' => 521, 'type' => 'php', |
10eedb
|
242 |
'file' => __FILE__, 'line' => __LINE__, |
A |
243 |
'message' => "Invalid callback function for $hook"), true, false); |
cc97ea
|
244 |
} |
8ec1b9
|
245 |
|
479af9
|
246 |
/** |
A |
247 |
* Allow a plugin object to unregister a callback. |
|
248 |
* |
|
249 |
* @param string $hook Hook name |
|
250 |
* @param mixed $callback String with global function name or array($obj, 'methodname') |
|
251 |
*/ |
|
252 |
public function unregister_hook($hook, $callback) |
|
253 |
{ |
|
254 |
$callback_id = array_search($callback, $this->handlers[$hook]); |
|
255 |
if ($callback_id !== false) { |
|
256 |
unset($this->handlers[$hook][$callback_id]); |
|
257 |
} |
|
258 |
} |
|
259 |
|
8ec1b9
|
260 |
|
cc97ea
|
261 |
/** |
T |
262 |
* Triggers a plugin hook. |
|
263 |
* This is called from the application and executes all registered handlers |
|
264 |
* |
5c461b
|
265 |
* @param string $hook Hook name |
A |
266 |
* @param array $args Named arguments (key->value pairs) |
cc97ea
|
267 |
* @return array The (probably) altered hook arguments |
T |
268 |
*/ |
|
269 |
public function exec_hook($hook, $args = array()) |
|
270 |
{ |
463a03
|
271 |
if (!is_array($args)) |
A |
272 |
$args = array('arg' => $args); |
|
273 |
|
cc97ea
|
274 |
$args += array('abort' => false); |
a366a3
|
275 |
$this->active_hook = $hook; |
8ec1b9
|
276 |
|
cc97ea
|
277 |
foreach ((array)$this->handlers[$hook] as $callback) { |
T |
278 |
$ret = call_user_func($callback, $args); |
|
279 |
if ($ret && is_array($ret)) |
|
280 |
$args = $ret + $args; |
8ec1b9
|
281 |
|
cc97ea
|
282 |
if ($args['abort']) |
T |
283 |
break; |
|
284 |
} |
8ec1b9
|
285 |
|
a366a3
|
286 |
$this->active_hook = false; |
cc97ea
|
287 |
return $args; |
T |
288 |
} |
|
289 |
|
|
290 |
|
|
291 |
/** |
|
292 |
* Let a plugin register a handler for a specific request |
|
293 |
* |
5c461b
|
294 |
* @param string $action Action name (_task=mail&_action=plugin.foo) |
A |
295 |
* @param string $owner Plugin name that registers this action |
|
296 |
* @param mixed $callback Callback: string with global function name or array($obj, 'methodname') |
|
297 |
* @param string $task Task name registered by this plugin |
cc97ea
|
298 |
*/ |
05a631
|
299 |
public function register_action($action, $owner, $callback, $task = null) |
cc97ea
|
300 |
{ |
T |
301 |
// check action name |
05a631
|
302 |
if ($task) |
T |
303 |
$action = $task.'.'.$action; |
|
304 |
else if (strpos($action, 'plugin.') !== 0) |
cc97ea
|
305 |
$action = 'plugin.'.$action; |
2cd443
|
306 |
|
cc97ea
|
307 |
// can register action only if it's not taken or registered by myself |
T |
308 |
if (!isset($this->actionmap[$action]) || $this->actionmap[$action] == $owner) { |
|
309 |
$this->actions[$action] = $callback; |
|
310 |
$this->actionmap[$action] = $owner; |
|
311 |
} |
|
312 |
else { |
0c2596
|
313 |
rcube::raise_error(array('code' => 523, 'type' => 'php', |
10eedb
|
314 |
'file' => __FILE__, 'line' => __LINE__, |
A |
315 |
'message' => "Cannot register action $action; already taken by another plugin"), true, false); |
cc97ea
|
316 |
} |
T |
317 |
} |
|
318 |
|
|
319 |
|
|
320 |
/** |
|
321 |
* This method handles requests like _task=mail&_action=plugin.foo |
|
322 |
* It executes the callback function that was registered with the given action. |
|
323 |
* |
5c461b
|
324 |
* @param string $action Action name |
cc97ea
|
325 |
*/ |
T |
326 |
public function exec_action($action) |
|
327 |
{ |
|
328 |
if (isset($this->actions[$action])) { |
|
329 |
call_user_func($this->actions[$action]); |
|
330 |
} |
92eb10
|
331 |
else if (rcube::get_instance()->action != 'refresh') { |
0c2596
|
332 |
rcube::raise_error(array('code' => 524, 'type' => 'php', |
10eedb
|
333 |
'file' => __FILE__, 'line' => __LINE__, |
A |
334 |
'message' => "No handler found for action $action"), true, true); |
cc97ea
|
335 |
} |
T |
336 |
} |
|
337 |
|
|
338 |
|
|
339 |
/** |
|
340 |
* Register a handler function for template objects |
|
341 |
* |
5c461b
|
342 |
* @param string $name Object name |
A |
343 |
* @param string $owner Plugin name that registers this action |
|
344 |
* @param mixed $callback Callback: string with global function name or array($obj, 'methodname') |
cc97ea
|
345 |
*/ |
T |
346 |
public function register_handler($name, $owner, $callback) |
|
347 |
{ |
|
348 |
// check name |
|
349 |
if (strpos($name, 'plugin.') !== 0) |
|
350 |
$name = 'plugin.'.$name; |
8ec1b9
|
351 |
|
cc97ea
|
352 |
// can register handler only if it's not taken or registered by myself |
0c2596
|
353 |
if (is_object($this->output) && (!isset($this->objectsmap[$name]) || $this->objectsmap[$name] == $owner)) { |
cc97ea
|
354 |
$this->output->add_handler($name, $callback); |
T |
355 |
$this->objectsmap[$name] = $owner; |
|
356 |
} |
|
357 |
else { |
0c2596
|
358 |
rcube::raise_error(array('code' => 525, 'type' => 'php', |
10eedb
|
359 |
'file' => __FILE__, 'line' => __LINE__, |
0c2596
|
360 |
'message' => "Cannot register template handler $name; already taken by another plugin or no output object available"), true, false); |
cc97ea
|
361 |
} |
T |
362 |
} |
8ec1b9
|
363 |
|
A |
364 |
|
a366a3
|
365 |
/** |
05a631
|
366 |
* Register this plugin to be responsible for a specific task |
T |
367 |
* |
5c461b
|
368 |
* @param string $task Task name (only characters [a-z0-9_.-] are allowed) |
A |
369 |
* @param string $owner Plugin name that registers this action |
05a631
|
370 |
*/ |
T |
371 |
public function register_task($task, $owner) |
|
372 |
{ |
|
373 |
if ($task != asciiwords($task)) { |
0c2596
|
374 |
rcube::raise_error(array('code' => 526, 'type' => 'php', |
05a631
|
375 |
'file' => __FILE__, 'line' => __LINE__, |
T |
376 |
'message' => "Invalid task name: $task. Only characters [a-z0-9_.-] are allowed"), true, false); |
|
377 |
} |
|
378 |
else if (in_array($task, rcmail::$main_tasks)) { |
0c2596
|
379 |
rcube::raise_error(array('code' => 526, 'type' => 'php', |
05a631
|
380 |
'file' => __FILE__, 'line' => __LINE__, |
T |
381 |
'message' => "Cannot register taks $task; already taken by another plugin or the application itself"), true, false); |
|
382 |
} |
|
383 |
else { |
|
384 |
$this->tasks[$task] = $owner; |
|
385 |
rcmail::$main_tasks[] = $task; |
|
386 |
return true; |
|
387 |
} |
8ec1b9
|
388 |
|
05a631
|
389 |
return false; |
T |
390 |
} |
|
391 |
|
|
392 |
|
|
393 |
/** |
|
394 |
* Checks whether the given task is registered by a plugin |
|
395 |
* |
5c461b
|
396 |
* @param string $task Task name |
05a631
|
397 |
* @return boolean True if registered, otherwise false |
T |
398 |
*/ |
|
399 |
public function is_plugin_task($task) |
|
400 |
{ |
|
401 |
return $this->tasks[$task] ? true : false; |
|
402 |
} |
|
403 |
|
|
404 |
|
|
405 |
/** |
a366a3
|
406 |
* Check if a plugin hook is currently processing. |
T |
407 |
* Mainly used to prevent loops and recursion. |
|
408 |
* |
5c461b
|
409 |
* @param string $hook Hook to check (optional) |
a366a3
|
410 |
* @return boolean True if any/the given hook is currently processed, otherwise false |
T |
411 |
*/ |
|
412 |
public function is_processing($hook = null) |
|
413 |
{ |
|
414 |
return $this->active_hook && (!$hook || $this->active_hook == $hook); |
|
415 |
} |
8ec1b9
|
416 |
|
cc97ea
|
417 |
/** |
T |
418 |
* Include a plugin script file in the current HTML page |
5c461b
|
419 |
* |
A |
420 |
* @param string $fn Path to script |
cc97ea
|
421 |
*/ |
T |
422 |
public function include_script($fn) |
|
423 |
{ |
0c2596
|
424 |
if (is_object($this->output) && $this->output->type == 'html') { |
eb6f19
|
425 |
$src = $this->resource_url($fn); |
cc97ea
|
426 |
$this->output->add_header(html::tag('script', array('type' => "text/javascript", 'src' => $src))); |
T |
427 |
} |
|
428 |
} |
|
429 |
|
8ec1b9
|
430 |
|
cc97ea
|
431 |
/** |
T |
432 |
* Include a plugin stylesheet in the current HTML page |
5c461b
|
433 |
* |
A |
434 |
* @param string $fn Path to stylesheet |
cc97ea
|
435 |
*/ |
T |
436 |
public function include_stylesheet($fn) |
|
437 |
{ |
0c2596
|
438 |
if (is_object($this->output) && $this->output->type == 'html') { |
eb6f19
|
439 |
$src = $this->resource_url($fn); |
ba3377
|
440 |
$this->output->include_css($src); |
cc97ea
|
441 |
} |
T |
442 |
} |
8ec1b9
|
443 |
|
A |
444 |
|
cc97ea
|
445 |
/** |
T |
446 |
* Save the given HTML content to be added to a template container |
5c461b
|
447 |
* |
A |
448 |
* @param string $html HTML content |
|
449 |
* @param string $container Template container identifier |
cc97ea
|
450 |
*/ |
T |
451 |
public function add_content($html, $container) |
|
452 |
{ |
|
453 |
$this->template_contents[$container] .= $html . "\n"; |
|
454 |
} |
8ec1b9
|
455 |
|
A |
456 |
|
cc97ea
|
457 |
/** |
8703b0
|
458 |
* Returns list of loaded plugins names |
A |
459 |
* |
|
460 |
* @return array List of plugin names |
|
461 |
*/ |
|
462 |
public function loaded_plugins() |
|
463 |
{ |
|
464 |
return array_keys($this->plugins); |
|
465 |
} |
|
466 |
|
|
467 |
|
|
468 |
/** |
cc97ea
|
469 |
* Callback for template_container hooks |
5c461b
|
470 |
* |
A |
471 |
* @param array $attrib |
|
472 |
* @return array |
cc97ea
|
473 |
*/ |
53f4b9
|
474 |
protected function template_container_hook($attrib) |
cc97ea
|
475 |
{ |
T |
476 |
$container = $attrib['name']; |
8448fc
|
477 |
return array('content' => $attrib['content'] . $this->template_contents[$container]); |
cc97ea
|
478 |
} |
8ec1b9
|
479 |
|
A |
480 |
|
cc97ea
|
481 |
/** |
T |
482 |
* Make the given file name link into the plugins directory |
5c461b
|
483 |
* |
A |
484 |
* @param string $fn Filename |
|
485 |
* @return string |
cc97ea
|
486 |
*/ |
53f4b9
|
487 |
protected function resource_url($fn) |
cc97ea
|
488 |
{ |
23a2ee
|
489 |
if ($fn[0] != '/' && !preg_match('|^https?://|i', $fn)) |
cc97ea
|
490 |
return $this->url . $fn; |
T |
491 |
else |
|
492 |
return $fn; |
|
493 |
} |
|
494 |
|
|
495 |
} |