comparison program/lib/Roundcube/rcube_plugin.php @ 0:4681f974d28b

vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:52:31 -0500
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children 3a5f959af5ae
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-1:000000000000 0:4681f974d28b
1 <?php
2
3 /**
4 +-----------------------------------------------------------------------+
5 | This file is part of the Roundcube Webmail client |
6 | Copyright (C) 2008-2014, The Roundcube Dev Team |
7 | |
8 | Licensed under the GNU General Public License version 3 or |
9 | any later version with exceptions for skins & plugins. |
10 | See the README file for a full license statement. |
11 | |
12 | PURPOSE: |
13 | Abstract plugins interface/class |
14 | All plugins need to extend this class |
15 +-----------------------------------------------------------------------+
16 | Author: Thomas Bruederli <roundcube@gmail.com> |
17 +-----------------------------------------------------------------------+
18 */
19
20 /**
21 * Plugin interface class
22 *
23 * @package Framework
24 * @subpackage PluginAPI
25 */
26 abstract class rcube_plugin
27 {
28 /**
29 * Class name of the plugin instance
30 *
31 * @var string
32 */
33 public $ID;
34
35 /**
36 * Instance of Plugin API
37 *
38 * @var rcube_plugin_api
39 */
40 public $api;
41
42 /**
43 * Regular expression defining task(s) to bind with
44 *
45 * @var string
46 */
47 public $task;
48
49 /**
50 * Disables plugin in AJAX requests
51 *
52 * @var boolean
53 */
54 public $noajax = false;
55
56 /**
57 * Disables plugin in framed mode
58 *
59 * @var boolean
60 */
61 public $noframe = false;
62
63 /**
64 * A list of config option names that can be modified
65 * by the user via user interface (with save-prefs command)
66 *
67 * @var array
68 */
69 public $allowed_prefs;
70
71 protected $home;
72 protected $urlbase;
73 private $mytask;
74 private $loaded_config = array();
75
76
77 /**
78 * Default constructor.
79 *
80 * @param rcube_plugin_api $api Plugin API
81 */
82 public function __construct($api)
83 {
84 $this->ID = get_class($this);
85 $this->api = $api;
86 $this->home = $api->dir . $this->ID;
87 $this->urlbase = $api->url . $this->ID . '/';
88 }
89
90 /**
91 * Initialization method, needs to be implemented by the plugin itself
92 */
93 abstract function init();
94
95 /**
96 * Provide information about this
97 *
98 * @return array Meta information about a plugin or false if not implemented:
99 * As hash array with the following keys:
100 * name: The plugin name
101 * vendor: Name of the plugin developer
102 * version: Plugin version name
103 * license: License name (short form according to http://spdx.org/licenses/)
104 * uri: The URL to the plugin homepage or source repository
105 * src_uri: Direct download URL to the source code of this plugin
106 * require: List of plugins required for this one (as array of plugin names)
107 */
108 public static function info()
109 {
110 return false;
111 }
112
113 /**
114 * Attempt to load the given plugin which is required for the current plugin
115 *
116 * @param string Plugin name
117 * @return boolean True on success, false on failure
118 */
119 public function require_plugin($plugin_name)
120 {
121 return $this->api->load_plugin($plugin_name, true);
122 }
123
124 /**
125 * Attempt to load the given plugin which is optional for the current plugin
126 *
127 * @param string Plugin name
128 * @return boolean True on success, false on failure
129 */
130 public function include_plugin($plugin_name)
131 {
132 return $this->api->load_plugin($plugin_name, true, false);
133 }
134
135 /**
136 * Load local config file from plugins directory.
137 * The loaded values are patched over the global configuration.
138 *
139 * @param string $fname Config file name relative to the plugin's folder
140 *
141 * @return boolean True on success, false on failure
142 */
143 public function load_config($fname = 'config.inc.php')
144 {
145 if (in_array($fname, $this->loaded_config)) {
146 return true;
147 }
148
149 $this->loaded_config[] = $fname;
150
151 $fpath = $this->home.'/'.$fname;
152 $rcube = rcube::get_instance();
153
154 if (($is_local = is_file($fpath)) && !$rcube->config->load_from_file($fpath)) {
155 rcube::raise_error(array(
156 'code' => 527, 'type' => 'php',
157 'file' => __FILE__, 'line' => __LINE__,
158 'message' => "Failed to load config from $fpath"), true, false);
159 return false;
160 }
161 else if (!$is_local) {
162 // Search plugin_name.inc.php file in any configured path
163 return $rcube->config->load_from_file($this->ID . '.inc.php');
164 }
165
166 return true;
167 }
168
169 /**
170 * Register a callback function for a specific (server-side) hook
171 *
172 * @param string $hook Hook name
173 * @param mixed $callback Callback function as string or array
174 * with object reference and method name
175 */
176 public function add_hook($hook, $callback)
177 {
178 $this->api->register_hook($hook, $callback);
179 }
180
181 /**
182 * Unregister a callback function for a specific (server-side) hook.
183 *
184 * @param string $hook Hook name
185 * @param mixed $callback Callback function as string or array
186 * with object reference and method name
187 */
188 public function remove_hook($hook, $callback)
189 {
190 $this->api->unregister_hook($hook, $callback);
191 }
192
193 /**
194 * Load localized texts from the plugins dir
195 *
196 * @param string $dir Directory to search in
197 * @param mixed $add2client Make texts also available on the client
198 * (array with list or true for all)
199 */
200 public function add_texts($dir, $add2client = false)
201 {
202 $domain = $this->ID;
203 $lang = $_SESSION['language'];
204 $langs = array_unique(array('en_US', $lang));
205 $locdir = slashify(realpath(slashify($this->home) . $dir));
206 $texts = array();
207
208 // Language aliases used to find localization in similar lang, see below
209 $aliases = array(
210 'de_CH' => 'de_DE',
211 'es_AR' => 'es_ES',
212 'fa_AF' => 'fa_IR',
213 'nl_BE' => 'nl_NL',
214 'pt_BR' => 'pt_PT',
215 'zh_CN' => 'zh_TW',
216 );
217
218 // use buffering to handle empty lines/spaces after closing PHP tag
219 ob_start();
220
221 foreach ($langs as $lng) {
222 $fpath = $locdir . $lng . '.inc';
223 if (is_file($fpath) && is_readable($fpath)) {
224 include $fpath;
225 $texts = (array)$labels + (array)$messages + (array)$texts;
226 }
227 else if ($lng != 'en_US') {
228 // Find localization in similar language (#1488401)
229 $alias = null;
230 if (!empty($aliases[$lng])) {
231 $alias = $aliases[$lng];
232 }
233 else if ($key = array_search($lng, $aliases)) {
234 $alias = $key;
235 }
236
237 if (!empty($alias)) {
238 $fpath = $locdir . $alias . '.inc';
239 if (is_file($fpath) && is_readable($fpath)) {
240 include $fpath;
241 $texts = (array)$labels + (array)$messages + (array)$texts;
242 }
243 }
244 }
245 }
246
247 ob_end_clean();
248
249 // prepend domain to text keys and add to the application texts repository
250 if (!empty($texts)) {
251 $add = array();
252 foreach ($texts as $key => $value) {
253 $add[$domain.'.'.$key] = $value;
254 }
255
256 $rcube = rcube::get_instance();
257 $rcube->load_language($lang, $add);
258
259 // add labels to client
260 if ($add2client && method_exists($rcube->output, 'add_label')) {
261 if (is_array($add2client)) {
262 $js_labels = array_map(array($this, 'label_map_callback'), $add2client);
263 }
264 else {
265 $js_labels = array_keys($add);
266 }
267 $rcube->output->add_label($js_labels);
268 }
269 }
270 }
271
272 /**
273 * Wrapper for add_label() adding the plugin ID as domain
274 */
275 public function add_label()
276 {
277 $rcube = rcube::get_instance();
278
279 if (method_exists($rcube->output, 'add_label')) {
280 $args = func_get_args();
281 if (count($args) == 1 && is_array($args[0])) {
282 $args = $args[0];
283 }
284
285 $args = array_map(array($this, 'label_map_callback'), $args);
286 $rcube->output->add_label($args);
287 }
288 }
289
290 /**
291 * Wrapper for rcube::gettext() adding the plugin ID as domain
292 *
293 * @param string $p Message identifier
294 *
295 * @return string Localized text
296 * @see rcube::gettext()
297 */
298 public function gettext($p)
299 {
300 return rcube::get_instance()->gettext($p, $this->ID);
301 }
302
303 /**
304 * Register this plugin to be responsible for a specific task
305 *
306 * @param string $task Task name (only characters [a-z0-9_-] are allowed)
307 */
308 public function register_task($task)
309 {
310 if ($this->api->register_task($task, $this->ID)) {
311 $this->mytask = $task;
312 }
313 }
314
315 /**
316 * Register a handler for a specific client-request action
317 *
318 * The callback will be executed upon a request like /?_task=mail&_action=plugin.myaction
319 *
320 * @param string $action Action name (should be unique)
321 * @param mixed $callback Callback function as string
322 * or array with object reference and method name
323 */
324 public function register_action($action, $callback)
325 {
326 $this->api->register_action($action, $this->ID, $callback, $this->mytask);
327 }
328
329 /**
330 * Register a handler function for a template object
331 *
332 * When parsing a template for display, tags like <roundcube:object name="plugin.myobject" />
333 * will be replaced by the return value if the registered callback function.
334 *
335 * @param string $name Object name (should be unique and start with 'plugin.')
336 * @param mixed $callback Callback function as string or array with object reference
337 * and method name
338 */
339 public function register_handler($name, $callback)
340 {
341 $this->api->register_handler($name, $this->ID, $callback);
342 }
343
344 /**
345 * Make this javascipt file available on the client
346 *
347 * @param string $fn File path; absolute or relative to the plugin directory
348 */
349 public function include_script($fn)
350 {
351 $this->api->include_script($this->resource_url($fn));
352 }
353
354 /**
355 * Make this stylesheet available on the client
356 *
357 * @param string $fn File path; absolute or relative to the plugin directory
358 */
359 public function include_stylesheet($fn)
360 {
361 $this->api->include_stylesheet($this->resource_url($fn));
362 }
363
364 /**
365 * Append a button to a certain container
366 *
367 * @param array $p Hash array with named parameters (as used in skin templates)
368 * @param string $container Container name where the buttons should be added to
369 *
370 * @see rcube_remplate::button()
371 */
372 public function add_button($p, $container)
373 {
374 if ($this->api->output->type == 'html') {
375 // fix relative paths
376 foreach (array('imagepas', 'imageact', 'imagesel') as $key) {
377 if ($p[$key]) {
378 $p[$key] = $this->api->url . $this->resource_url($p[$key]);
379 }
380 }
381
382 $this->api->add_content($this->api->output->button($p), $container);
383 }
384 }
385
386 /**
387 * Generate an absolute URL to the given resource within the current
388 * plugin directory
389 *
390 * @param string $fn The file name
391 *
392 * @return string Absolute URL to the given resource
393 */
394 public function url($fn)
395 {
396 return $this->api->url . $this->resource_url($fn);
397 }
398
399 /**
400 * Make the given file name link into the plugin directory
401 *
402 * @param string $fn Filename
403 */
404 private function resource_url($fn)
405 {
406 if ($fn[0] != '/' && !preg_match('|^https?://|i', $fn)) {
407 return $this->ID . '/' . $fn;
408 }
409 else {
410 return $fn;
411 }
412 }
413
414 /**
415 * Provide path to the currently selected skin folder within the plugin directory
416 * with a fallback to the default skin folder.
417 *
418 * @return string Skin path relative to plugins directory
419 */
420 public function local_skin_path()
421 {
422 $rcube = rcube::get_instance();
423 $skins = array_keys((array)$rcube->output->skins);
424 if (empty($skins)) {
425 $skins = (array) $rcube->config->get('skin');
426 }
427 foreach ($skins as $skin) {
428 $skin_path = 'skins/' . $skin;
429 if (is_dir(realpath(slashify($this->home) . $skin_path))) {
430 break;
431 }
432 }
433
434 return $skin_path;
435 }
436
437 /**
438 * Callback function for array_map
439 *
440 * @param string $key Array key.
441 * @return string
442 */
443 private function label_map_callback($key)
444 {
445 if (strpos($key, $this->ID.'.') === 0) {
446 return $key;
447 }
448
449 return $this->ID.'.'.$key;
450 }
451 }