Tiny-Tiny-RSS /classes/pluginhost.php

Language PHP Lines 305
MD5 Hash 323c1a53aab64217b7509208e1699ae6
Repository https://github.com/krihal/Tiny-Tiny-RSS.git View Raw File
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
<?php
class PluginHost {
	private $link;
	private $hooks = array();
	private $plugins = array();
	private $handlers = array();
	private $commands = array();
	private $storage = array();
	private $owner_uid;
	private $debug;

	const HOOK_ARTICLE_BUTTON = 1;
	const HOOK_ARTICLE_FILTER = 2;
	const HOOK_PREFS_TAB = 3;
	const HOOK_PREFS_TAB_SECTION = 4;
	const HOOK_PREFS_TABS = 5;
	const HOOK_FEED_PARSED = 6;
	const HOOK_UPDATE_TASK = 7;
	const HOOK_AUTH_USER = 8;
	const HOOK_HOTKEY_MAP = 9;
	const HOOK_RENDER_ARTICLE = 10;
	const HOOK_RENDER_ARTICLE_CDM = 11;
	const HOOK_FEED_FETCHED = 12;
	const HOOK_SANITIZE = 13;

	const KIND_ALL = 1;
	const KIND_SYSTEM = 2;
	const KIND_USER = 3;

	function __construct($link) {
		$this->link = $link;

		$this->storage = $_SESSION["plugin_storage"];

		if (!$this->storage) $this->storage = array();
	}

	private function register_plugin($name, $plugin) {
		//array_push($this->plugins, $plugin);
		$this->plugins[$name] = $plugin;
	}

	function get_link() {
		return $this->link;
	}

	function get_plugins() {
		return $this->plugins;
	}

	function get_plugin($name) {
		return $this->plugins[$name];
	}

	function run_hooks($type, $method, $args) {
		foreach ($this->get_hooks($type) as $hook) {
			$hook->$method($args);
		}
	}

	function add_hook($type, $sender) {
		if (!is_array($this->hooks[$type])) {
			$this->hooks[$type] = array();
		}

		array_push($this->hooks[$type], $sender);
	}

	function del_hook($type, $sender) {
		if (is_array($this->hooks[$type])) {
			$key = array_Search($this->hooks[$type], $sender);
			if ($key !== FALSE) {
				unset($this->hooks[$type][$key]);
			}
		}
	}

	function get_hooks($type) {
		if (isset($this->hooks[$type])) {
			return $this->hooks[$type];
		} else {
			return array();
		}
	}
	function load_all($kind, $owner_uid = false) {
		$plugins = array_map("basename", glob("plugins/*"));
		$this->load(join(",", $plugins), $kind, $owner_uid);
	}

	function load($classlist, $kind, $owner_uid = false) {
		$plugins = explode(",", $classlist);

		$this->owner_uid = (int) $owner_uid;

		foreach ($plugins as $class) {
			$class = trim($class);
			$class_file = strtolower(basename($class));
			$file = dirname(__FILE__)."/../plugins/$class_file/init.php";

			if (!isset($this->plugins[$class])) {
				if (file_exists($file)) require_once $file;

				if (class_exists($class) && is_subclass_of($class, "Plugin")) {
					$plugin = new $class($this);

					switch ($kind) {
					case $this::KIND_SYSTEM:
						if ($this->is_system($plugin)) {
							$plugin->init($this);
							$this->register_plugin($class, $plugin);
						}
						break;
					case $this::KIND_USER:
						if (!$this->is_system($plugin)) {
							$plugin->init($this);
							$this->register_plugin($class, $plugin);
						}
						break;
					case $this::KIND_ALL:
						$plugin->init($this);
						$this->register_plugin($class, $plugin);
						break;
					}
				}
			}
		}
	}

	function is_system($plugin) {
		$about = $plugin->about();

		return @$about[3];
	}

	// only system plugins are allowed to modify routing
	function add_handler($handler, $method, $sender) {
		$handler = str_replace("-", "_", strtolower($handler));
		$method = strtolower($method);

		if ($this->is_system($sender)) {
			if (!is_array($this->handlers[$handler])) {
				$this->handlers[$handler] = array();
			}

			$this->handlers[$handler][$method] = $sender;
		}
	}

	function del_handler($handler, $method) {
		$handler = str_replace("-", "_", strtolower($handler));
		$method = strtolower($method);

		if ($this->is_system($sender)) {
			unset($this->handlers[$handler][$method]);
		}
	}

	function lookup_handler($handler, $method) {
		$handler = str_replace("-", "_", strtolower($handler));
		$method = strtolower($method);

		if (is_array($this->handlers[$handler])) {
			if (isset($this->handlers[$handler]["*"])) {
				return $this->handlers[$handler]["*"];
			} else {
				return $this->handlers[$handler][$method];
			}
		}

		return false;
	}

	function add_command($command, $description, $sender) {
		$command = "-" . str_replace("-", "_", strtolower($command));

		$this->commands[$command] = array("description" => $description,
			"class" => $sender);
	}

	function del_command($command) {
		$command = "-" . strtolower($command);

		unset($this->commands[$command]);
	}

	function lookup_command($command) {
		$command = "-" . strtolower($command);

		if (is_array($this->commands[$command])) {
			return $this->commands[$command]["class"];
		} else {
			return false;
		}

		return false;
	}

	function get_commands() {
		return $this->commands;
	}

	function run_commands($args) {
		foreach ($this->get_commands() as $command => $data) {
			if (in_array($command, $args)) {
				$command = str_replace("-", "", $command);
				$data["class"]->$command($args);
			}
		}
	}

	function load_data($force = false) {
		if ($this->owner_uid && (!$_SESSION["plugin_storage"] || $force))  {
			$plugin = db_escape_string($plugin);

			$result = db_query($this->link, "SELECT name, content FROM ttrss_plugin_storage
				WHERE owner_uid = '".$this->owner_uid."'");

			while ($line = db_fetch_assoc($result)) {
				$this->storage[$line["name"]] = unserialize($line["content"]);
			}

			$_SESSION["plugin_storage"] = $this->storage;
		}
	}

	private function save_data($plugin) {
		if ($this->owner_uid) {
			$plugin = db_escape_string($plugin);

			db_query($this->link, "BEGIN");

			$result = db_query($this->link,"SELECT id FROM ttrss_plugin_storage WHERE
				owner_uid= '".$this->owner_uid."' AND name = '$plugin'");

			if (!isset($this->storage[$plugin]))
				$this->storage[$plugin] = array();

			$content = db_escape_string(serialize($this->storage[$plugin]));

			if (db_num_rows($result) != 0) {
				db_query($this->link, "UPDATE ttrss_plugin_storage SET content = '$content'
					WHERE owner_uid= '".$this->owner_uid."' AND name = '$plugin'");

			} else {
				db_query($this->link, "INSERT INTO ttrss_plugin_storage
					(name,owner_uid,content) VALUES
					('$plugin','".$this->owner_uid."','$content')");
			}

			db_query($this->link, "COMMIT");
		}
	}

	function set($sender, $name, $value, $sync = true) {
		$idx = get_class($sender);

		if (!isset($this->storage[$idx]))
			$this->storage[$idx] = array();

		$this->storage[$idx][$name] = $value;

		$_SESSION["plugin_storage"] = $this->storage;

		if ($sync) $this->save_data(get_class($sender));
	}

	function get($sender, $name, $default_value = false) {
		$idx = get_class($sender);

		if (isset($this->storage[$idx][$name])) {
			return $this->storage[$idx][$name];
		} else {
			return $default_value;
		}
	}

	function get_all($sender) {
		$idx = get_class($sender);

		return $this->storage[$idx];
	}

	function clear_data($sender) {
		if ($this->owner_uid) {
			$idx = get_class($sender);

			unset($this->storage[$idx]);

			db_query($this->link, "DELETE FROM ttrss_plugin_storage WHERE name = '$idx'
				AND owner_uid = " . $this->owner_uid);

			$_SESSION["plugin_storage"] = $this->storage;
		}
	}

	function set_debug($debug) {
		$this->debug = $debug;
	}

	function get_debug() {
		return $this->debug;
	}
}
?>
Back to Top