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Commit | Line | Data |
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5f0a3741 | 1 | <?php |
6cbe53c9 AD |
2 | class Instances extends Plugin implements IHandler { |
3 | ||
4 | private $link; | |
5 | private $host; | |
5f0a3741 | 6 | |
32532f1c AD |
7 | private $status_codes = array( |
8 | 0 => "Connection failed", | |
9 | 1 => "Success", | |
10 | 2 => "Invalid object received", | |
11 | 16 => "Access denied" ); | |
12 | ||
7a866114 AD |
13 | function _about() { |
14 | return array(1.0, | |
15 | "Support for linking tt-rss instances together and sharing popular feeds.", | |
16 | "fox"); | |
17 | } | |
18 | ||
6cbe53c9 AD |
19 | function __construct($host) { |
20 | $this->link = $host->get_link(); | |
21 | $this->host = $host; | |
22 | ||
23 | $host->add_hook($host::HOOK_PREFS_TABS, $this); | |
24 | $host->add_handler("pref-instances", "*", $this); | |
ebff9ef7 | 25 | $host->add_handler("public", "fbexport", $this); |
41b82aa4 AD |
26 | $host->add_command("get-feeds", "receive popular feeds from linked instances", $this); |
27 | $host->add_hook($host::HOOK_UPDATE_TASK, $this); | |
28 | } | |
29 | ||
30 | function hook_update_task($args) { | |
31 | _debug("Get linked feeds..."); | |
32 | $this->get_linked_feeds($this->link); | |
33 | } | |
34 | ||
35 | // Status codes: | |
36 | // -1 - never connected | |
37 | // 0 - no data received | |
38 | // 1 - data received successfully | |
39 | // 2 - did not receive valid data | |
40 | // >10 - server error, code + 10 (e.g. 16 means server error 6) | |
41 | ||
42 | function get_linked_feeds($link, $instance_id = false) { | |
43 | if ($instance_id) | |
44 | $instance_qpart = "id = '$instance_id' AND "; | |
45 | else | |
46 | $instance_qpart = ""; | |
47 | ||
48 | if (DB_TYPE == "pgsql") { | |
49 | $date_qpart = "last_connected < NOW() - INTERVAL '6 hours'"; | |
50 | } else { | |
51 | $date_qpart = "last_connected < DATE_SUB(NOW(), INTERVAL 6 HOUR)"; | |
52 | } | |
53 | ||
54 | $result = db_query($link, "SELECT id, access_key, access_url FROM ttrss_linked_instances | |
55 | WHERE $instance_qpart $date_qpart ORDER BY last_connected"); | |
56 | ||
57 | while ($line = db_fetch_assoc($result)) { | |
58 | $id = $line['id']; | |
59 | ||
60 | _debug("Updating: " . $line['access_url'] . " ($id)"); | |
61 | ||
62 | $fetch_url = $line['access_url'] . '/public.php?op=fbexport'; | |
63 | $post_query = 'key=' . $line['access_key']; | |
64 | ||
65 | $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query); | |
66 | ||
67 | // try doing it the old way | |
68 | if (!$feeds) { | |
69 | $fetch_url = $line['access_url'] . '/backend.php?op=fbexport'; | |
70 | $feeds = fetch_file_contents($fetch_url, false, false, false, $post_query); | |
71 | } | |
72 | ||
73 | if ($feeds) { | |
74 | $feeds = json_decode($feeds, true); | |
75 | ||
76 | if ($feeds) { | |
77 | if ($feeds['error']) { | |
78 | $status = $feeds['error']['code'] + 10; | |
79 | ||
80 | // access denied | |
81 | if ($status == 16) { | |
82 | db_query($link, "DELETE FROM ttrss_linked_feeds | |
83 | WHERE instance_id = '$id'"); | |
84 | } | |
85 | } else { | |
86 | $status = 1; | |
87 | ||
88 | if (count($feeds['feeds']) > 0) { | |
89 | ||
90 | db_query($link, "DELETE FROM ttrss_linked_feeds | |
91 | WHERE instance_id = '$id'"); | |
92 | ||
93 | foreach ($feeds['feeds'] as $feed) { | |
94 | $feed_url = db_escape_string($feed['feed_url']); | |
95 | $title = db_escape_string($feed['title']); | |
96 | $subscribers = db_escape_string($feed['subscribers']); | |
97 | $site_url = db_escape_string($feed['site_url']); | |
98 | ||
99 | db_query($link, "INSERT INTO ttrss_linked_feeds | |
100 | (feed_url, site_url, title, subscribers, instance_id, created, updated) | |
101 | VALUES | |
102 | ('$feed_url', '$site_url', '$title', '$subscribers', '$id', NOW(), NOW())"); | |
103 | } | |
104 | } else { | |
105 | // received 0 feeds, this might indicate that | |
106 | // the instance on the other hand is rebuilding feedbrowser cache | |
107 | // we will try again later | |
108 | ||
109 | // TODO: maybe perform expiration based on updated here? | |
110 | } | |
111 | ||
112 | _debug("Processed " . count($feeds['feeds']) . " feeds."); | |
113 | } | |
114 | } else { | |
115 | $status = 2; | |
116 | } | |
117 | ||
118 | } else { | |
119 | $status = 0; | |
120 | } | |
121 | ||
122 | _debug("Status: $status"); | |
123 | ||
124 | db_query($link, "UPDATE ttrss_linked_instances SET | |
125 | last_status_out = '$status', last_connected = NOW() WHERE id = '$id'"); | |
126 | ||
127 | } | |
128 | } | |
129 | ||
130 | ||
131 | function get_feeds() { | |
132 | $this->get_linked_feeds($this->link, false); | |
6cbe53c9 AD |
133 | } |
134 | ||
135 | function get_prefs_js() { | |
136 | return file_get_contents(dirname(__FILE__) . "/instances.js"); | |
137 | } | |
138 | ||
139 | function hook_prefs_tabs($args) { | |
140 | if ($_SESSION["access_level"] >= 10 || SINGLE_USER_MODE) { | |
141 | ?><div id="instanceConfigTab" dojoType="dijit.layout.ContentPane" | |
142 | href="backend.php?op=pref-instances" | |
143 | title="<?php echo __('Linked') ?>"></div><?php | |
144 | } | |
145 | } | |
146 | ||
8484ce22 AD |
147 | function csrf_ignore($method) { |
148 | $csrf_ignored = array("index", "edit"); | |
149 | ||
150 | return array_search($method, $csrf_ignored) !== false; | |
151 | } | |
152 | ||
17f9d200 | 153 | function before($method) { |
6cbe53c9 | 154 | if ($_SESSION["uid"]) { |
5f0a3741 AD |
155 | if ($_SESSION["access_level"] < 10) { |
156 | print __("Your access level is insufficient to open this tab."); | |
157 | return false; | |
158 | } | |
159 | return true; | |
160 | } | |
161 | return false; | |
162 | } | |
163 | ||
6cbe53c9 AD |
164 | function after() { |
165 | return true; | |
166 | } | |
167 | ||
5f0a3741 AD |
168 | function remove() { |
169 | $ids = db_escape_string($_REQUEST['ids']); | |
170 | ||
171 | db_query($this->link, "DELETE FROM ttrss_linked_instances WHERE | |
172 | id IN ($ids)"); | |
173 | } | |
174 | ||
175 | function add() { | |
176 | $id = db_escape_string($_REQUEST["id"]); | |
177 | $access_url = db_escape_string($_REQUEST["access_url"]); | |
178 | $access_key = db_escape_string($_REQUEST["access_key"]); | |
179 | ||
180 | db_query($this->link, "BEGIN"); | |
181 | ||
182 | $result = db_query($this->link, "SELECT id FROM ttrss_linked_instances | |
183 | WHERE access_url = '$access_url'"); | |
184 | ||
185 | if (db_num_rows($result) == 0) { | |
186 | db_query($this->link, "INSERT INTO ttrss_linked_instances | |
187 | (access_url, access_key, last_connected, last_status_in, last_status_out) | |
188 | VALUES | |
189 | ('$access_url', '$access_key', '1970-01-01', -1, -1)"); | |
190 | ||
191 | } | |
192 | ||
193 | db_query($this->link, "COMMIT"); | |
194 | } | |
195 | ||
196 | function edit() { | |
197 | $id = db_escape_string($_REQUEST["id"]); | |
198 | ||
199 | $result = db_query($this->link, "SELECT * FROM ttrss_linked_instances WHERE | |
200 | id = '$id'"); | |
201 | ||
202 | print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"id\" value=\"$id\">"; | |
203 | print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pref-instances\">"; | |
204 | print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"editSave\">"; | |
205 | ||
206 | print "<div class=\"dlgSec\">".__("Instance")."</div>"; | |
207 | ||
208 | print "<div class=\"dlgSecCont\">"; | |
209 | ||
210 | /* URL */ | |
211 | ||
212 | $access_url = htmlspecialchars(db_fetch_result($result, 0, "access_url")); | |
213 | ||
214 | print __("URL:") . " "; | |
215 | ||
216 | print "<input dojoType=\"dijit.form.ValidationTextBox\" required=\"1\" | |
217 | placeHolder=\"".__("Instance URL")."\" | |
218 | regExp='^(http|https)://.*' | |
219 | style=\"font-size : 16px; width: 20em\" name=\"access_url\" | |
220 | value=\"$access_url\">"; | |
221 | ||
222 | print "<hr/>"; | |
223 | ||
224 | $access_key = htmlspecialchars(db_fetch_result($result, 0, "access_key")); | |
225 | ||
226 | /* Access key */ | |
227 | ||
228 | print __("Access key:") . " "; | |
229 | ||
230 | print "<input dojoType=\"dijit.form.ValidationTextBox\" required=\"1\" | |
231 | placeHolder=\"".__("Access key")."\" regExp='\w{40}' | |
232 | style=\"width: 20em\" name=\"access_key\" id=\"instance_edit_key\" | |
233 | value=\"$access_key\">"; | |
234 | ||
235 | print "<p class='insensitive'>" . __("Use one access key for both linked instances."); | |
236 | ||
237 | print "</div>"; | |
238 | ||
239 | print "<div class=\"dlgButtons\"> | |
240 | <div style='float : left'> | |
241 | <button dojoType=\"dijit.form.Button\" | |
242 | onclick=\"return dijit.byId('instanceEditDlg').regenKey()\">". | |
243 | __('Generate new key')."</button> | |
244 | </div> | |
245 | <button dojoType=\"dijit.form.Button\" | |
246 | onclick=\"return dijit.byId('instanceEditDlg').execute()\">". | |
247 | __('Save')."</button> | |
248 | <button dojoType=\"dijit.form.Button\" | |
249 | onclick=\"return dijit.byId('instanceEditDlg').hide()\"\">". | |
250 | __('Cancel')."</button></div>"; | |
251 | ||
252 | } | |
253 | ||
254 | function editSave() { | |
255 | $id = db_escape_string($_REQUEST["id"]); | |
256 | $access_url = db_escape_string($_REQUEST["access_url"]); | |
257 | $access_key = db_escape_string($_REQUEST["access_key"]); | |
258 | ||
259 | db_query($this->link, "UPDATE ttrss_linked_instances SET | |
260 | access_key = '$access_key', access_url = '$access_url', | |
261 | last_connected = '1970-01-01' | |
262 | WHERE id = '$id'"); | |
263 | ||
264 | } | |
265 | ||
266 | function index() { | |
267 | ||
268 | if (!function_exists('curl_init')) { | |
269 | print "<div style='padding : 1em'>"; | |
270 | print_error("This functionality requires CURL functions. Please enable CURL in your PHP configuration (you might also want to disable open_basedir in php.ini) and reload this page."); | |
271 | print "</div>"; | |
272 | } | |
273 | ||
274 | print "<div id=\"pref-instance-wrap\" dojoType=\"dijit.layout.BorderContainer\" gutters=\"false\">"; | |
275 | print "<div id=\"pref-instance-header\" dojoType=\"dijit.layout.ContentPane\" region=\"top\">"; | |
276 | ||
277 | print "<div id=\"pref-instance-toolbar\" dojoType=\"dijit.Toolbar\">"; | |
278 | ||
279 | $sort = db_escape_string($_REQUEST["sort"]); | |
280 | ||
281 | if (!$sort || $sort == "undefined") { | |
282 | $sort = "access_url"; | |
283 | } | |
284 | ||
285 | print "<div dojoType=\"dijit.form.DropDownButton\">". | |
286 | "<span>" . __('Select')."</span>"; | |
287 | print "<div dojoType=\"dijit.Menu\" style=\"display: none;\">"; | |
288 | print "<div onclick=\"selectTableRows('prefInstanceList', 'all')\" | |
289 | dojoType=\"dijit.MenuItem\">".__('All')."</div>"; | |
290 | print "<div onclick=\"selectTableRows('prefInstanceList', 'none')\" | |
291 | dojoType=\"dijit.MenuItem\">".__('None')."</div>"; | |
292 | print "</div></div>"; | |
293 | ||
294 | print "<button dojoType=\"dijit.form.Button\" onclick=\"addInstance()\">".__('Link instance')."</button>"; | |
295 | print "<button dojoType=\"dijit.form.Button\" onclick=\"editSelectedInstance()\">".__('Edit')."</button>"; | |
296 | print "<button dojoType=\"dijit.form.Button\" onclick=\"removeSelectedInstances()\">".__('Remove')."</button>"; | |
297 | ||
298 | print "</div>"; #toolbar | |
299 | ||
300 | $result = db_query($this->link, "SELECT *, | |
301 | (SELECT COUNT(*) FROM ttrss_linked_feeds | |
302 | WHERE instance_id = ttrss_linked_instances.id) AS num_feeds | |
303 | FROM ttrss_linked_instances | |
304 | ORDER BY $sort"); | |
305 | ||
306 | print "<p class=\"insensitive\" style='margin-left : 1em;'>" . __("You can connect other instances of Tiny Tiny RSS to this one to share Popular feeds. Link to this instance of Tiny Tiny RSS by using this URL:"); | |
307 | ||
308 | print " <a href=\"#\" onclick=\"alert('".htmlspecialchars(get_self_url_prefix())."')\">(display url)</a>"; | |
309 | ||
310 | print "<p><table width='100%' id='prefInstanceList' class='prefInstanceList' cellspacing='0'>"; | |
311 | ||
312 | print "<tr class=\"title\"> | |
313 | <td align='center' width=\"5%\"> </td> | |
314 | <td width=''><a href=\"#\" onclick=\"updateInstanceList('access_url')\">".__('Instance URL')."</a></td> | |
315 | <td width='20%'><a href=\"#\" onclick=\"updateInstanceList('access_key')\">".__('Access key')."</a></td> | |
316 | <td width='10%'><a href=\"#\" onclick=\"updateUsersList('last_connected')\">".__('Last connected')."</a></td> | |
32532f1c | 317 | <td width='10%'><a href=\"#\" onclick=\"updateUsersList('last_status_out')\">".__('Status')."</a></td> |
5f0a3741 AD |
318 | <td width='10%'><a href=\"#\" onclick=\"updateUsersList('num_feeds')\">".__('Stored feeds')."</a></td> |
319 | </tr>"; | |
320 | ||
321 | $lnum = 0; | |
322 | ||
323 | while ($line = db_fetch_assoc($result)) { | |
324 | $class = ($lnum % 2) ? "even" : "odd"; | |
325 | ||
326 | $id = $line['id']; | |
327 | $this_row_id = "id=\"LIRR-$id\""; | |
328 | ||
329 | $line["last_connected"] = make_local_datetime($this->link, $line["last_connected"], false); | |
330 | ||
331 | print "<tr class=\"$class\" $this_row_id>"; | |
332 | ||
333 | print "<td align='center'><input onclick='toggleSelectRow(this);' | |
334 | type=\"checkbox\" id=\"LICHK-$id\"></td>"; | |
335 | ||
336 | $onclick = "onclick='editInstance($id, event)' title='".__('Click to edit')."'"; | |
337 | ||
338 | $access_key = mb_substr($line['access_key'], 0, 4) . '...' . | |
339 | mb_substr($line['access_key'], -4); | |
340 | ||
341 | print "<td $onclick>" . htmlspecialchars($line['access_url']) . "</td>"; | |
342 | print "<td $onclick>" . htmlspecialchars($access_key) . "</td>"; | |
343 | print "<td $onclick>" . htmlspecialchars($line['last_connected']) . "</td>"; | |
32532f1c | 344 | print "<td $onclick>" . $this->status_codes[$line['last_status_out']] . "</td>"; |
5f0a3741 AD |
345 | print "<td $onclick>" . htmlspecialchars($line['num_feeds']) . "</td>"; |
346 | ||
347 | print "</tr>"; | |
348 | ||
349 | ++$lnum; | |
350 | } | |
351 | ||
352 | print "</table>"; | |
353 | ||
354 | print "</div>"; #pane | |
6065f3ad AD |
355 | |
356 | global $pluginhost; | |
357 | $pluginhost->run_hooks($pluginhost::HOOK_PREFS_TAB, | |
358 | "hook_prefs_tab", "prefInstances"); | |
359 | ||
5f0a3741 AD |
360 | print "</div>"; #container |
361 | ||
362 | } | |
6cbe53c9 | 363 | |
ebff9ef7 AD |
364 | function fbexport() { |
365 | ||
366 | $access_key = db_escape_string($_POST["key"]); | |
367 | ||
368 | // TODO: rate limit checking using last_connected | |
369 | $result = db_query($this->link, "SELECT id FROM ttrss_linked_instances | |
370 | WHERE access_key = '$access_key'"); | |
371 | ||
372 | if (db_num_rows($result) == 1) { | |
373 | ||
374 | $instance_id = db_fetch_result($result, 0, "id"); | |
375 | ||
376 | $result = db_query($this->link, "SELECT feed_url, site_url, title, subscribers | |
377 | FROM ttrss_feedbrowser_cache ORDER BY subscribers DESC LIMIT 100"); | |
378 | ||
379 | $feeds = array(); | |
380 | ||
381 | while ($line = db_fetch_assoc($result)) { | |
382 | array_push($feeds, $line); | |
383 | } | |
384 | ||
385 | db_query($this->link, "UPDATE ttrss_linked_instances SET | |
386 | last_status_in = 1 WHERE id = '$instance_id'"); | |
387 | ||
388 | print json_encode(array("feeds" => $feeds)); | |
389 | } else { | |
390 | print json_encode(array("error" => array("code" => 6))); | |
391 | } | |
392 | } | |
393 | ||
394 | ||
5f0a3741 AD |
395 | } |
396 | ?> | |
6cbe53c9 | 397 |