Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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feed.php
001 <?php
002 /**
003 *
004 * This file is part of the phpBB Forum Software package.
005 *
006 * @copyright (c) phpBB Limited <https://www.phpbb.com>
007 * @license GNU General Public License, version 2 (GPL-2.0)
008 *
009 * For full copyright and license information, please see
010 * the docs/CREDITS.txt file.
011 *
012 */
013
014 namespace phpbb\feed\controller;
015
016 use phpbb\auth\auth;
017 use phpbb\config\config;
018 use phpbb\db\driver\driver_interface;
019 use \phpbb\event\dispatcher_interface;
020 use phpbb\exception\http_exception;
021 use phpbb\feed\feed_interface;
022 use phpbb\feed\exception\feed_unavailable_exception;
023 use phpbb\feed\exception\unauthorized_exception;
024 use phpbb\feed\helper as feed_helper;
025 use phpbb\controller\helper as controller_helper;
026 use phpbb\symfony_request;
027 use phpbb\user;
028 use Symfony\Component\DependencyInjection\ContainerInterface;
029 use Symfony\Component\HttpFoundation\Response;
030 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
031
032 class feed
033 {
034 /**
035 * @var \Twig_Environment
036 */
037 protected $template;
038
039 /**
040 * @var symfony_request
041 */
042 protected $request;
043
044 /**
045 * @var controller_helper
046 */
047 protected $controller_helper;
048
049 /**
050 * @var config
051 */
052 protected $config;
053
054 /**
055 * @var driver_interface
056 */
057 protected $db;
058
059 /**
060 * @var ContainerInterface
061 */
062 protected $container;
063
064 /**
065 * @var feed_helper
066 */
067 protected $feed_helper;
068
069 /**
070 * @var user
071 */
072 protected $user;
073
074 /**
075 * @var auth
076 */
077 protected $auth;
078
079 /**
080 * @var dispatcher_interface
081 */
082 protected $phpbb_dispatcher;
083
084 /**
085 * @var string
086 */
087 protected $php_ext;
088
089 /**
090 * Constructor
091 *
092 * @param \Twig_Environment $twig
093 * @param symfony_request $request
094 * @param controller_helper $controller_helper
095 * @param config $config
096 * @param driver_interface $db
097 * @param ContainerInterface $container
098 * @param feed_helper $feed_helper
099 * @param user $user
100 * @param auth $auth
101 * @param dispatcher_interface $phpbb_dispatcher
102 * @param string $php_ext
103 */
104 public function __construct(\Twig_Environment $twig, symfony_request $request, controller_helper $controller_helper, config $config, driver_interface $db, ContainerInterface $container, feed_helper $feed_helper, user $user, auth $auth, dispatcher_interface $phpbb_dispatcher, $php_ext)
105 {
106 $this->request = $request;
107 $this->controller_helper = $controller_helper;
108 $this->config = $config;
109 $this->db = $db;
110 $this->container = $container;
111 $this->feed_helper = $feed_helper;
112 $this->user = $user;
113 $this->auth = $auth;
114 $this->php_ext = $php_ext;
115 $this->template = $twig;
116 $this->phpbb_dispatcher = $phpbb_dispatcher;
117 }
118
119 /**
120 * Controller for /feed/forums route
121 *
122 * @return Response
123 *
124 * @throws http_exception when the feed is disabled
125 */
126 public function forums()
127 {
128 if (!$this->config['feed_overall_forums'])
129 {
130 $this->send_unavailable();
131 }
132
133 return $this->send_feed($this->container->get('feed.forums'));
134 }
135
136 /**
137 * Controller for /feed/news route
138 *
139 * @return Response
140 *
141 * @throws http_exception when the feed is disabled
142 */
143 public function news()
144 {
145 // Get at least one news forum
146 $sql = 'SELECT forum_id
147 FROM ' . FORUMS_TABLE . '
148 WHERE ' . $this->db->sql_bit_and('forum_options', FORUM_OPTION_FEED_NEWS, '<> 0');
149 $result = $this->db->sql_query_limit($sql, 1, 0, 600);
150 $s_feed_news = (int) $this->db->sql_fetchfield('forum_id');
151 $this->db->sql_freeresult($result);
152
153 if (!$s_feed_news)
154 {
155 $this->send_unavailable();
156 }
157
158 return $this->send_feed($this->container->get('feed.news'));
159 }
160
161 /**
162 * Controller for /feed/topics route
163 *
164 * @return Response
165 *
166 * @throws http_exception when the feed is disabled
167 */
168 public function topics()
169 {
170 if (!$this->config['feed_topics_new'])
171 {
172 $this->send_unavailable();
173 }
174
175 return $this->send_feed($this->container->get('feed.topics'));
176 }
177
178 /**
179 * Controller for /feed/topics_new route
180 *
181 * @return Response
182 *
183 * @throws http_exception when the feed is disabled
184 */
185 public function topics_new()
186 {
187 return $this->topics();
188 }
189
190 /**
191 * Controller for /feed/topics_active route
192 *
193 * @return Response
194 *
195 * @throws http_exception when the feed is disabled
196 */
197 public function topics_active()
198 {
199 if (!$this->config['feed_topics_active'])
200 {
201 $this->send_unavailable();
202 }
203
204 return $this->send_feed($this->container->get('feed.topics_active'));
205 }
206
207 /**
208 * Controller for /feed/forum/{forum_id} route
209 *
210 * @param int $forum_id
211 *
212 * @return Response
213 *
214 * @throws http_exception when the feed is disabled
215 */
216 public function forum($forum_id)
217 {
218 if (!$this->config['feed_forum'])
219 {
220 $this->send_unavailable();
221 }
222
223 return $this->send_feed($this->container->get('feed.forum')->set_forum_id($forum_id));
224 }
225
226 /**
227 * Controller for /feed/topic/{topic_id} route
228 *
229 * @param int $topic_id
230 *
231 * @return Response
232 *
233 * @throws http_exception when the feed is disabled
234 */
235 public function topic($topic_id)
236 {
237 if (!$this->config['feed_topic'])
238 {
239 $this->send_unavailable();
240 }
241
242 return $this->send_feed($this->container->get('feed.topic')->set_topic_id($topic_id));
243 }
244
245 /**
246 * Controller for /feed/{mode] route
247 *
248 * @return Response
249 *
250 * @throws http_exception when the feed is disabled
251 */
252 public function overall()
253 {
254 if (!$this->config['feed_overall'])
255 {
256 $this->send_unavailable();
257 }
258
259 return $this->send_feed($this->container->get('feed.overall'));
260 }
261
262 /**
263 * Display a given feed
264 *
265 * @param feed_interface $feed
266 *
267 * @return Response
268 */
269 protected function send_feed(feed_interface $feed)
270 {
271 try
272 {
273 return $this->send_feed_do($feed);
274 }
275 catch (feed_unavailable_exception $e)
276 {
277 throw new http_exception(Response::HTTP_NOT_FOUND, $e->getMessage(), $e->get_parameters(), $e);
278 }
279 catch (unauthorized_exception $e)
280 {
281 throw new http_exception(Response::HTTP_FORBIDDEN, $e->getMessage(), $e->get_parameters(), $e);
282 }
283 }
284
285 /**
286 * Really send the feed
287 *
288 * @param feed_interface $feed
289 *
290 * @return Response
291 *
292 * @throw exception\feed_exception
293 */
294 protected function send_feed_do(feed_interface $feed)
295 {
296 $feed_updated_time = 0;
297 $item_vars = array();
298
299 $board_url = $this->feed_helper->get_board_url();
300
301 // Open Feed
302 $feed->open();
303
304 // Iterate through items
305 while ($row = $feed->get_item())
306 {
307 /**
308 * Event to modify the feed row
309 *
310 * @event core.feed_modify_feed_row
311 * @var int forum_id Forum ID
312 * @var string mode Feeds mode (forums|topics|topics_new|topics_active|news)
313 * @var array row Array with feed data
314 * @var int topic_id Topic ID
315 *
316 * @since 3.1.10-RC1
317 */
318 $vars = array('forum_id', 'mode', 'row', 'topic_id');
319 extract($this->phpbb_dispatcher->trigger_event('core.feed_modify_feed_row', compact($vars)));
320
321 // BBCode options to correctly disable urls, smilies, bbcode...
322 if ($feed->get('options') === null)
323 {
324 // Allow all combinations
325 $options = 7;
326
327 if ($feed->get('enable_bbcode') !== null && $feed->get('enable_smilies') !== null && $feed->get('enable_magic_url') !== null)
328 {
329 $options = (($row[$feed->get('enable_bbcode')]) ? OPTION_FLAG_BBCODE : 0) + (($row[$feed->get('enable_smilies')]) ? OPTION_FLAG_SMILIES : 0) + (($row[$feed->get('enable_magic_url')]) ? OPTION_FLAG_LINKS : 0);
330 }
331 }
332 else
333 {
334 $options = $row[$feed->get('options')];
335 }
336
337 $title = (isset($row[$feed->get('title')]) && $row[$feed->get('title')] !== '') ? $row[$feed->get('title')] : ((isset($row[$feed->get('title2')])) ? $row[$feed->get('title2')] : '');
338
339 $published = ($feed->get('published') !== null) ? (int) $row[$feed->get('published')] : 0;
340 $updated = ($feed->get('updated') !== null) ? (int) $row[$feed->get('updated')] : 0;
341
342 $display_attachments = ($this->auth->acl_get('u_download') && $this->auth->acl_get('f_download', $row['forum_id']) && isset($row['post_attachment']) && $row['post_attachment']) ? true : false;
343
344 $item_row = array(
345 'author' => ($feed->get('creator') !== null) ? $row[$feed->get('creator')] : '',
346 'published' => ($published > 0) ? $this->feed_helper->format_date($published) : '',
347 'updated' => ($updated > 0) ? $this->feed_helper->format_date($updated) : '',
348 'link' => '',
349 'title' => censor_text($title),
350 'category' => ($this->config['feed_item_statistics'] && !empty($row['forum_id'])) ? $board_url . '/viewforum.' . $this->php_ext . '?f=' . $row['forum_id'] : '',
351 'category_name' => ($this->config['feed_item_statistics'] && isset($row['forum_name'])) ? $row['forum_name'] : '',
352 'description' => censor_text($this->feed_helper->generate_content($row[$feed->get('text')], $row[$feed->get('bbcode_uid')], $row[$feed->get('bitfield')], $options, $row['forum_id'], ($display_attachments ? $feed->get_attachments($row['post_id']) : array()))),
353 'statistics' => '',
354 );
355
356 // Adjust items, fill link, etc.
357 $feed->adjust_item($item_row, $row);
358
359 $item_vars[] = $item_row;
360
361 $feed_updated_time = max($feed_updated_time, $published, $updated);
362 }
363
364 // If we do not have any items at all, sending the current time is better than sending no time.
365 if (!$feed_updated_time)
366 {
367 $feed_updated_time = time();
368 }
369
370 $feed->close();
371
372 $content = $this->template->render('feed.xml.twig', array(
373 // Some default assignments
374 // FEED_IMAGE is not used (atom)
375 'FEED_IMAGE' => '',
376 'SELF_LINK' => $this->controller_helper->route($this->request->attributes->get('_route'), $this->request->attributes->get('_route_params'), true, '', UrlGeneratorInterface::ABSOLUTE_URL),
377 'FEED_LINK' => $board_url . '/index.' . $this->php_ext,
378 'FEED_TITLE' => $this->config['sitename'],
379 'FEED_SUBTITLE' => $this->config['site_desc'],
380 'FEED_UPDATED' => $this->feed_helper->format_date($feed_updated_time),
381 'FEED_LANG' => $this->user->lang['USER_LANG'],
382 'FEED_AUTHOR' => $this->config['sitename'],
383
384 // Feed entries
385 'FEED_ROWS' => $item_vars,
386 ));
387
388 $response = new Response($content);
389 $response->headers->set('Content-Type', 'application/atom+xml');
390 $response->setCharset('UTF-8');
391 $response->setLastModified(new \DateTime('@' . $feed_updated_time));
392
393 if (!empty($this->user->data['is_bot']))
394 {
395 // Let reverse proxies know we detected a bot.
396 $response->headers->set('X-PHPBB-IS-BOT', 'yes');
397 }
398
399 return $response;
400 }
401
402 /**
403 * Throw and exception saying that the feed isn't available
404 *
405 * @throw http_exception
406 */
407 protected function send_unavailable()
408 {
409 throw new http_exception(404, 'FEATURE_NOT_AVAILABLE');
410 }
411 }
412