]>
Commit | Line | Data |
---|---|---|
1 | <?php | |
2 | class PluginHost { | |
3 | private $dbh; | |
4 | private $hooks = array(); | |
5 | private $plugins = array(); | |
6 | private $handlers = array(); | |
7 | private $commands = array(); | |
8 | private $storage = array(); | |
9 | private $feeds = array(); | |
10 | private $api_methods = array(); | |
11 | private $plugin_actions = array(); | |
12 | private $owner_uid; | |
13 | private $debug; | |
14 | private $last_registered; | |
15 | private static $instance; | |
16 | ||
17 | const API_VERSION = 2; | |
18 | ||
19 | // Hooks marked with *1 are run in global context and available | |
20 | // to plugins loaded in config.php only | |
21 | ||
22 | const HOOK_ARTICLE_BUTTON = 1; | |
23 | const HOOK_ARTICLE_FILTER = 2; | |
24 | const HOOK_PREFS_TAB = 3; | |
25 | const HOOK_PREFS_TAB_SECTION = 4; | |
26 | const HOOK_PREFS_TABS = 5; | |
27 | const HOOK_FEED_PARSED = 6; | |
28 | const HOOK_UPDATE_TASK = 7; // *1 | |
29 | const HOOK_AUTH_USER = 8; | |
30 | const HOOK_HOTKEY_MAP = 9; | |
31 | const HOOK_RENDER_ARTICLE = 10; | |
32 | const HOOK_RENDER_ARTICLE_CDM = 11; | |
33 | const HOOK_FEED_FETCHED = 12; | |
34 | const HOOK_SANITIZE = 13; | |
35 | const HOOK_RENDER_ARTICLE_API = 14; | |
36 | const HOOK_TOOLBAR_BUTTON = 15; | |
37 | const HOOK_ACTION_ITEM = 16; | |
38 | const HOOK_HEADLINE_TOOLBAR_BUTTON = 17; | |
39 | const HOOK_HOTKEY_INFO = 18; | |
40 | const HOOK_ARTICLE_LEFT_BUTTON = 19; | |
41 | const HOOK_PREFS_EDIT_FEED = 20; | |
42 | const HOOK_PREFS_SAVE_FEED = 21; | |
43 | const HOOK_FETCH_FEED = 22; | |
44 | const HOOK_QUERY_HEADLINES = 23; | |
45 | const HOOK_HOUSE_KEEPING = 24; // *1 | |
46 | const HOOK_SEARCH = 25; | |
47 | const HOOK_FORMAT_ENCLOSURES = 26; | |
48 | const HOOK_SUBSCRIBE_FEED = 27; | |
49 | const HOOK_HEADLINES_BEFORE = 28; | |
50 | const HOOK_RENDER_ENCLOSURE = 29; | |
51 | const HOOK_ARTICLE_FILTER_ACTION = 30; | |
52 | const HOOK_ARTICLE_EXPORT_FEED = 31; | |
53 | ||
54 | const KIND_ALL = 1; | |
55 | const KIND_SYSTEM = 2; | |
56 | const KIND_USER = 3; | |
57 | ||
58 | function __construct() { | |
59 | $this->dbh = Db::get(); | |
60 | ||
61 | $this->storage = array(); | |
62 | } | |
63 | ||
64 | private function __clone() { | |
65 | // | |
66 | } | |
67 | ||
68 | public static function getInstance() { | |
69 | if (self::$instance == null) | |
70 | self::$instance = new self(); | |
71 | ||
72 | return self::$instance; | |
73 | } | |
74 | ||
75 | private function register_plugin($name, $plugin) { | |
76 | //array_push($this->plugins, $plugin); | |
77 | $this->plugins[$name] = $plugin; | |
78 | } | |
79 | ||
80 | // needed for compatibility with API 1 | |
81 | function get_link() { | |
82 | return false; | |
83 | } | |
84 | ||
85 | function get_dbh() { | |
86 | return $this->dbh; | |
87 | } | |
88 | ||
89 | function get_plugin_names() { | |
90 | $names = array(); | |
91 | ||
92 | foreach ($this->plugins as $p) { | |
93 | array_push($names, get_class($p)); | |
94 | } | |
95 | ||
96 | return $names; | |
97 | } | |
98 | ||
99 | function get_plugins() { | |
100 | return $this->plugins; | |
101 | } | |
102 | ||
103 | function get_plugin($name) { | |
104 | return $this->plugins[strtolower($name)]; | |
105 | } | |
106 | ||
107 | function run_hooks($type, $method, $args) { | |
108 | foreach ($this->get_hooks($type) as $hook) { | |
109 | $hook->$method($args); | |
110 | } | |
111 | } | |
112 | ||
113 | function add_hook($type, $sender) { | |
114 | if (!is_array($this->hooks[$type])) { | |
115 | $this->hooks[$type] = array(); | |
116 | } | |
117 | ||
118 | array_push($this->hooks[$type], $sender); | |
119 | } | |
120 | ||
121 | function del_hook($type, $sender) { | |
122 | if (is_array($this->hooks[$type])) { | |
123 | $key = array_Search($sender, $this->hooks[$type]); | |
124 | if ($key !== FALSE) { | |
125 | unset($this->hooks[$type][$key]); | |
126 | } | |
127 | } | |
128 | } | |
129 | ||
130 | function get_hooks($type) { | |
131 | if (isset($this->hooks[$type])) { | |
132 | return $this->hooks[$type]; | |
133 | } else { | |
134 | return array(); | |
135 | } | |
136 | } | |
137 | function load_all($kind, $owner_uid = false, $skip_init = false) { | |
138 | ||
139 | $plugins = array_merge(glob("plugins/*"), glob("plugins.local/*")); | |
140 | $plugins = array_filter($plugins, "is_dir"); | |
141 | $plugins = array_map("basename", $plugins); | |
142 | ||
143 | asort($plugins); | |
144 | ||
145 | $this->load(join(",", $plugins), $kind, $owner_uid, $skip_init); | |
146 | } | |
147 | ||
148 | function load($classlist, $kind, $owner_uid = false, $skip_init = false) { | |
149 | $plugins = explode(",", $classlist); | |
150 | ||
151 | $this->owner_uid = (int) $owner_uid; | |
152 | ||
153 | foreach ($plugins as $class) { | |
154 | $class = trim($class); | |
155 | $class_file = strtolower(basename($class)); | |
156 | ||
157 | if (!is_dir(__DIR__."/../plugins/$class_file") && | |
158 | !is_dir(__DIR__."/../plugins.local/$class_file")) continue; | |
159 | ||
160 | // try system plugin directory first | |
161 | $file = __DIR__ . "/../plugins/$class_file/init.php"; | |
162 | ||
163 | if (!file_exists($file)) { | |
164 | $file = __DIR__ . "/../plugins.local/$class_file/init.php"; | |
165 | } | |
166 | ||
167 | if (!isset($this->plugins[$class])) { | |
168 | if (file_exists($file)) require_once $file; | |
169 | ||
170 | if (class_exists($class) && is_subclass_of($class, "Plugin")) { | |
171 | $plugin = new $class($this); | |
172 | ||
173 | $plugin_api = $plugin->api_version(); | |
174 | ||
175 | if ($plugin_api < PluginHost::API_VERSION) { | |
176 | user_error("Plugin $class is not compatible with current API version (need: " . PluginHost::API_VERSION . ", got: $plugin_api)", E_USER_WARNING); | |
177 | continue; | |
178 | } | |
179 | ||
180 | $this->last_registered = $class; | |
181 | ||
182 | switch ($kind) { | |
183 | case $this::KIND_SYSTEM: | |
184 | if ($this->is_system($plugin)) { | |
185 | if (!$skip_init) $plugin->init($this); | |
186 | $this->register_plugin($class, $plugin); | |
187 | } | |
188 | break; | |
189 | case $this::KIND_USER: | |
190 | if (!$this->is_system($plugin)) { | |
191 | if (!$skip_init) $plugin->init($this); | |
192 | $this->register_plugin($class, $plugin); | |
193 | } | |
194 | break; | |
195 | case $this::KIND_ALL: | |
196 | if (!$skip_init) $plugin->init($this); | |
197 | $this->register_plugin($class, $plugin); | |
198 | break; | |
199 | } | |
200 | } | |
201 | } | |
202 | } | |
203 | } | |
204 | ||
205 | function is_system($plugin) { | |
206 | $about = $plugin->about(); | |
207 | ||
208 | return @$about[3]; | |
209 | } | |
210 | ||
211 | // only system plugins are allowed to modify routing | |
212 | function add_handler($handler, $method, $sender) { | |
213 | $handler = str_replace("-", "_", strtolower($handler)); | |
214 | $method = strtolower($method); | |
215 | ||
216 | if ($this->is_system($sender)) { | |
217 | if (!is_array($this->handlers[$handler])) { | |
218 | $this->handlers[$handler] = array(); | |
219 | } | |
220 | ||
221 | $this->handlers[$handler][$method] = $sender; | |
222 | } | |
223 | } | |
224 | ||
225 | function del_handler($handler, $method, $sender) { | |
226 | $handler = str_replace("-", "_", strtolower($handler)); | |
227 | $method = strtolower($method); | |
228 | ||
229 | if ($this->is_system($sender)) { | |
230 | unset($this->handlers[$handler][$method]); | |
231 | } | |
232 | } | |
233 | ||
234 | function lookup_handler($handler, $method) { | |
235 | $handler = str_replace("-", "_", strtolower($handler)); | |
236 | $method = strtolower($method); | |
237 | ||
238 | if (is_array($this->handlers[$handler])) { | |
239 | if (isset($this->handlers[$handler]["*"])) { | |
240 | return $this->handlers[$handler]["*"]; | |
241 | } else { | |
242 | return $this->handlers[$handler][$method]; | |
243 | } | |
244 | } | |
245 | ||
246 | return false; | |
247 | } | |
248 | ||
249 | function add_command($command, $description, $sender, $suffix = "", $arghelp = "") { | |
250 | $command = str_replace("-", "_", strtolower($command)); | |
251 | ||
252 | $this->commands[$command] = array("description" => $description, | |
253 | "suffix" => $suffix, | |
254 | "arghelp" => $arghelp, | |
255 | "class" => $sender); | |
256 | } | |
257 | ||
258 | function del_command($command) { | |
259 | $command = "-" . strtolower($command); | |
260 | ||
261 | unset($this->commands[$command]); | |
262 | } | |
263 | ||
264 | function lookup_command($command) { | |
265 | $command = "-" . strtolower($command); | |
266 | ||
267 | if (is_array($this->commands[$command])) { | |
268 | return $this->commands[$command]["class"]; | |
269 | } else { | |
270 | return false; | |
271 | } | |
272 | ||
273 | return false; | |
274 | } | |
275 | ||
276 | function get_commands() { | |
277 | return $this->commands; | |
278 | } | |
279 | ||
280 | function run_commands($args) { | |
281 | foreach ($this->get_commands() as $command => $data) { | |
282 | if (isset($args[$command])) { | |
283 | $command = str_replace("-", "", $command); | |
284 | $data["class"]->$command($args); | |
285 | } | |
286 | } | |
287 | } | |
288 | ||
289 | function load_data($force = false) { | |
290 | if ($this->owner_uid) { | |
291 | $result = $this->dbh->query("SELECT name, content FROM ttrss_plugin_storage | |
292 | WHERE owner_uid = '".$this->owner_uid."'"); | |
293 | ||
294 | while ($line = $this->dbh->fetch_assoc($result)) { | |
295 | $this->storage[$line["name"]] = unserialize($line["content"]); | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | private function save_data($plugin) { | |
301 | if ($this->owner_uid) { | |
302 | $plugin = $this->dbh->escape_string($plugin); | |
303 | ||
304 | $this->dbh->query("BEGIN"); | |
305 | ||
306 | $result = $this->dbh->query("SELECT id FROM ttrss_plugin_storage WHERE | |
307 | owner_uid= '".$this->owner_uid."' AND name = '$plugin'"); | |
308 | ||
309 | if (!isset($this->storage[$plugin])) | |
310 | $this->storage[$plugin] = array(); | |
311 | ||
312 | $content = $this->dbh->escape_string(serialize($this->storage[$plugin]), | |
313 | false); | |
314 | ||
315 | if ($this->dbh->num_rows($result) != 0) { | |
316 | $this->dbh->query("UPDATE ttrss_plugin_storage SET content = '$content' | |
317 | WHERE owner_uid= '".$this->owner_uid."' AND name = '$plugin'"); | |
318 | ||
319 | } else { | |
320 | $this->dbh->query("INSERT INTO ttrss_plugin_storage | |
321 | (name,owner_uid,content) VALUES | |
322 | ('$plugin','".$this->owner_uid."','$content')"); | |
323 | } | |
324 | ||
325 | $this->dbh->query("COMMIT"); | |
326 | } | |
327 | } | |
328 | ||
329 | function set($sender, $name, $value, $sync = true) { | |
330 | $idx = get_class($sender); | |
331 | ||
332 | if (!isset($this->storage[$idx])) | |
333 | $this->storage[$idx] = array(); | |
334 | ||
335 | $this->storage[$idx][$name] = $value; | |
336 | ||
337 | if ($sync) $this->save_data(get_class($sender)); | |
338 | } | |
339 | ||
340 | function get($sender, $name, $default_value = false) { | |
341 | $idx = get_class($sender); | |
342 | ||
343 | if (isset($this->storage[$idx][$name])) { | |
344 | return $this->storage[$idx][$name]; | |
345 | } else { | |
346 | return $default_value; | |
347 | } | |
348 | } | |
349 | ||
350 | function get_all($sender) { | |
351 | $idx = get_class($sender); | |
352 | ||
353 | return $this->storage[$idx]; | |
354 | } | |
355 | ||
356 | function clear_data($sender) { | |
357 | if ($this->owner_uid) { | |
358 | $idx = get_class($sender); | |
359 | ||
360 | unset($this->storage[$idx]); | |
361 | ||
362 | $this->dbh->query("DELETE FROM ttrss_plugin_storage WHERE name = '$idx' | |
363 | AND owner_uid = " . $this->owner_uid); | |
364 | } | |
365 | } | |
366 | ||
367 | function set_debug($debug) { | |
368 | $this->debug = $debug; | |
369 | } | |
370 | ||
371 | function get_debug() { | |
372 | return $this->debug; | |
373 | } | |
374 | ||
375 | // Plugin feed functions are *EXPERIMENTAL*! | |
376 | ||
377 | // cat_id: only -1 is supported (Special) | |
378 | function add_feed($cat_id, $title, $icon, $sender) { | |
379 | if (!$this->feeds[$cat_id]) $this->feeds[$cat_id] = array(); | |
380 | ||
381 | $id = count($this->feeds[$cat_id]); | |
382 | ||
383 | array_push($this->feeds[$cat_id], | |
384 | array('id' => $id, 'title' => $title, 'sender' => $sender, 'icon' => $icon)); | |
385 | ||
386 | return $id; | |
387 | } | |
388 | ||
389 | function get_feeds($cat_id) { | |
390 | return $this->feeds[$cat_id]; | |
391 | } | |
392 | ||
393 | // convert feed_id (e.g. -129) to pfeed_id first | |
394 | function get_feed_handler($pfeed_id) { | |
395 | foreach ($this->feeds as $cat) { | |
396 | foreach ($cat as $feed) { | |
397 | if ($feed['id'] == $pfeed_id) { | |
398 | return $feed['sender']; | |
399 | } | |
400 | } | |
401 | } | |
402 | } | |
403 | ||
404 | static function pfeed_to_feed_id($label) { | |
405 | return PLUGIN_FEED_BASE_INDEX - 1 - abs($label); | |
406 | } | |
407 | ||
408 | static function feed_to_pfeed_id($feed) { | |
409 | return PLUGIN_FEED_BASE_INDEX - 1 + abs($feed); | |
410 | } | |
411 | ||
412 | function add_api_method($name, $sender) { | |
413 | if ($this->is_system($sender)) { | |
414 | $this->api_methods[strtolower($name)] = $sender; | |
415 | } | |
416 | } | |
417 | ||
418 | function get_api_method($name) { | |
419 | return $this->api_methods[$name]; | |
420 | } | |
421 | ||
422 | function add_filter_action($sender, $action_name, $action_desc) { | |
423 | $sender_class = get_class($sender); | |
424 | ||
425 | if (!isset($this->plugin_actions[$sender_class])) | |
426 | $this->plugin_actions[$sender_class] = array(); | |
427 | ||
428 | array_push($this->plugin_actions[$sender_class], | |
429 | array("action" => $action_name, "description" => $action_desc, "sender" => $sender)); | |
430 | } | |
431 | ||
432 | function get_filter_actions() { | |
433 | return $this->plugin_actions; | |
434 | } | |
435 | } | |
436 | ?> |