5 * Description: Provides a Facebook-like chat using Jappix Mini
7 * Author: leberwurscht <leberwurscht@hoegners.de>
11 // Copyright 2012 "Leberwurscht" <leberwurscht@hoegners.de>
13 // This file is dual-licensed under the MIT license (see MIT.txt) and the AGPL license (see jappix/COPYING).
19 * jabber password should not be stored on server
20 * jabber password should not be sent between server and browser as soon as the user is logged in
21 * jabber password should not be reconstructible from communication between server and browser as soon as the user is logged in
24 Only store an encrypted version of the jabber password on the server. The encryption key is only available to the browser
25 and not to the server (at least as soon as the user is logged in). It can be stored using the jappix setDB function.
27 This encryption key could be the friendica password, but then this password would be stored in the browser in cleartext.
28 It is better to use a hash of the password.
29 The server should not be able to reconstruct the password, so we can't take the same hash the server stores. But we can
30 use hash("some_prefix"+password). This will however not work with OpenID logins, for this type of login the password must
34 How to discover the jabber addresses of the friendica contacts?
37 Each Friendica site with this addon provides a /jappixmini/ module page. We go through our contacts and retrieve
38 this information every week using a cron hook.
41 We do not want to make the jabber address public.
44 When two friendica users connect using DFRN, the relation gets a DFRN ID and a keypair is generated.
45 Using this keypair, we can provide the jabber address only to contacts:
48 signed_address = openssl_*_encrypt(alice_jabber_address)
49 send signed_address to Bob, who does
50 trusted_address = openssl_*_decrypt(signed_address)
52 encrypted_address = openssl_*_encrypt(bob_jabber_address)
53 reply with encrypted_address to Alice, who does
54 decrypted_address = openssl_*_decrypt(encrypted_address)
55 save decrypted_address
58 GET /jappixmini/?role=%s&signed_address=%s&dfrn_id=%s
61 json({"status":"ok", "encrypted_address":"%s"})
66 use Friendica\Core\Addon;
67 use Friendica\Core\Config;
68 use Friendica\Core\PConfig;
69 use Friendica\Model\User;
71 function jappixmini_install()
73 Addon::registerHook('addon_settings', 'addon/jappixmini/jappixmini.php', 'jappixmini_settings');
74 Addon::registerHook('addon_settings_post', 'addon/jappixmini/jappixmini.php', 'jappixmini_settings_post');
76 Addon::registerHook('page_end', 'addon/jappixmini/jappixmini.php', 'jappixmini_script');
77 Addon::registerHook('authenticate', 'addon/jappixmini/jappixmini.php', 'jappixmini_login');
79 Addon::registerHook('cron', 'addon/jappixmini/jappixmini.php', 'jappixmini_cron');
81 // Jappix source download as required by AGPL
82 Addon::registerHook('about_hook', 'addon/jappixmini/jappixmini.php', 'jappixmini_download_source');
84 // set standard configuration
85 $info_text = Config::get("jappixmini", "infotext");
87 set_confConfig::setig("jappixmini", "infotext", "To get the chat working, you need to know a BOSH host which works with your Jabber account. " .
88 "An example of a BOSH server that works for all accounts is https://bind.jappix.com/, but keep " .
89 "in mind that the BOSH server can read along all chat messages. If you know that your Jabber " .
90 "server also provides an own BOSH server, it is much better to use this one!"
93 $bosh_proxy = Config::get("jappixmini", "bosh_proxy");
94 if ($bosh_proxy === "") {
95 Config::set("jappixmini", "bosh_proxy", "1");
98 // set addon version so that safe updates are possible later
99 $addon_version = Config::get("jappixmini", "version");
100 if ($addon_version === "") {
101 Config::set("jappixmini", "version", "1");
105 function jappixmini_uninstall()
107 Addon::unregisterHook('addon_settings', 'addon/jappixmini/jappixmini.php', 'jappixmini_settings');
108 Addon::unregisterHook('addon_settings_post', 'addon/jappixmini/jappixmini.php', 'jappixmini_settings_post');
110 Addon::unregisterHook('page_end', 'addon/jappixmini/jappixmini.php', 'jappixmini_script');
111 Addon::unregisterHook('authenticate', 'addon/jappixmini/jappixmini.php', 'jappixmini_login');
113 Addon::unregisterHook('cron', 'addon/jappixmini/jappixmini.php', 'jappixmini_cron');
115 Addon::unregisterHook('about_hook', 'addon/jappixmini/jappixmini.php', 'jappixmini_download_source');
118 function jappixmini_addon_admin(App $a, &$o)
120 // display instructions and warnings on addon settings page for admin
121 if (!file_exists("addon/jappixmini.tgz")) {
122 $o .= '<p><strong style="color:#fff;background-color:#f00">The source archive jappixmini.tgz does not exist. This is probably a violation of the Jappix License (AGPL).</strong></p>';
125 // warn if cron job has not yet been executed
126 $cron_run = Config::get("jappixmini", "last_cron_execution");
128 $o .= "<p><strong>Warning: The cron job has not yet been executed. If this message is still there after some time (usually 10 minutes), this means that autosubscribe and autoaccept will not work.</strong></p>";
132 $bosh_proxy = intval(Config::get("jappixmini", "bosh_proxy"));
133 $bosh_proxy = intval($bosh_proxy) ? ' checked="checked"' : '';
134 $o .= '<label for="jappixmini-proxy">Activate BOSH proxy</label>';
135 $o .= ' <input id="jappixmini-proxy" type="checkbox" name="jappixmini-proxy" value="1"' . $bosh_proxy . ' /><br />';
138 $bosh_address = Config::get("jappixmini", "bosh_address");
139 $o .= '<p><label for="jappixmini-address">Adress of the default BOSH proxy. If enabled it overrides the user settings:</label><br />';
140 $o .= '<input id="jappixmini-address" type="text" name="jappixmini-address" value="' . $bosh_address . '" /></p>';
142 // default server address
143 $default_server = Config::get("jappixmini", "default_server");
144 $o .= '<p><label for="jappixmini-server">Adress of the default jabber server:</label><br />';
145 $o .= '<input id="jappixmini-server" type="text" name="jappixmini-server" value="' . $default_server . '" /></p>';
147 // default user name to friendica nickname
148 $default_user = intval(Config::get("jappixmini", "default_user"));
149 $default_user = intval($default_user) ? ' checked="checked"' : '';
150 $o .= '<label for="jappixmini-user">Set the default username to the nickname:</label>';
151 $o .= ' <input id="jappixmini-user" type="checkbox" name="jappixmini-defaultuser" value="1"' . $default_user . ' /><br />';
154 $info_text = Config::get("jappixmini", "infotext");
155 $o .= '<p><label for="jappixmini-infotext">Info text to help users with configuration (important if you want to provide your own BOSH host!):</label><br />';
156 $o .= '<textarea id="jappixmini-infotext" name="jappixmini-infotext" rows="5" cols="50">' . htmlentities($info_text) . '</textarea></p>';
159 $o .= '<input type="submit" name="jappixmini-admin-settings" value="OK" />';
162 function jappixmini_addon_admin_post(App $a)
165 $submit = $_REQUEST['jappixmini-admin-settings'];
167 $info_text = $_REQUEST['jappixmini-infotext'];
168 $bosh_proxy = intval($_REQUEST['jappixmini-proxy']);
169 $default_user = intval($_REQUEST['jappixmini-defaultuser']);
170 $bosh_address = $_REQUEST['jappixmini-address'];
171 $default_server = $_REQUEST['jappixmini-server'];
172 Config::set("jappixmini", "infotext", $info_text);
173 Config::set("jappixmini", "bosh_proxy", $bosh_proxy);
174 Config::set("jappixmini", "bosh_address", $bosh_address);
175 Config::set("jappixmini", "default_server", $default_server);
176 Config::set("jappixmini", "default_user", $default_user);
180 function jappixmini_module()
185 function jappixmini_init()
187 // module page where other Friendica sites can submit Jabber addresses to and also can query Jabber addresses
189 $dfrn_id = $_REQUEST["dfrn_id"];
194 $role = $_REQUEST["role"];
195 if ($role == "pub") {
196 $r = q("SELECT * FROM `contact` WHERE LENGTH(`pubkey`) AND `dfrn-id`='%s' LIMIT 1", dbesc($dfrn_id));
201 $encrypt_func = openssl_public_encrypt;
202 $decrypt_func = openssl_public_decrypt;
203 $key = $r[0]["pubkey"];
204 } else if ($role == "prv") {
205 $r = q("SELECT * FROM `contact` WHERE LENGTH(`prvkey`) AND `issued-id`='%s' LIMIT 1", dbesc($dfrn_id));
210 $encrypt_func = openssl_private_encrypt;
211 $decrypt_func = openssl_private_decrypt;
212 $key = $r[0]["prvkey"];
219 // save the Jabber address we received
221 $signed_address_hex = $_REQUEST["signed_address"];
222 $signed_address = hex2bin($signed_address_hex);
224 $trusted_address = "";
225 $decrypt_func($signed_address, $trusted_address, $key);
227 $now = intval(time());
228 PConfig::set($uid, "jappixmini", "id:$dfrn_id", "$now:$trusted_address");
229 } catch (Exception $e) {
233 // do not return an address if user deactivated addon
234 $activated = PConfig::get($uid, 'jappixmini', 'activate');
239 // return the requested Jabber address
241 $username = PConfig::get($uid, 'jappixmini', 'username');
242 $server = PConfig::get($uid, 'jappixmini', 'server');
243 $address = "$username@$server";
245 $encrypted_address = "";
246 $encrypt_func($address, $encrypted_address, $key);
248 $encrypted_address_hex = bin2hex($encrypted_address);
252 "encrypted_address" => $encrypted_address_hex
255 $answer_json = json_encode($answer);
258 } catch (Exception $e) {
263 function jappixmini_settings(App $a, &$s)
265 // addon settings for a user
266 $activate = PConfig::get(local_user(), 'jappixmini', 'activate');
267 $activate = intval($activate) ? ' checked="checked"' : '';
268 $dontinsertchat = PConfig::get(local_user(), 'jappixmini', 'dontinsertchat');
269 $insertchat = !(intval($dontinsertchat) ? ' checked="checked"' : '');
271 $defaultbosh = Config::get("jappixmini", "bosh_address");
273 if ($defaultbosh != "") {
274 PConfig::set(local_user(), 'jappixmini', 'bosh', $defaultbosh);
277 $username = PConfig::get(local_user(), 'jappixmini', 'username');
278 $username = htmlentities($username);
279 $server = PConfig::get(local_user(), 'jappixmini', 'server');
280 $server = htmlentities($server);
281 $bosh = PConfig::get(local_user(), 'jappixmini', 'bosh');
282 $bosh = htmlentities($bosh);
283 $password = PConfig::get(local_user(), 'jappixmini', 'password');
284 $autosubscribe = PConfig::get(local_user(), 'jappixmini', 'autosubscribe');
285 $autosubscribe = intval($autosubscribe) ? ' checked="checked"' : '';
286 $autoapprove = PConfig::get(local_user(), 'jappixmini', 'autoapprove');
287 $autoapprove = intval($autoapprove) ? ' checked="checked"' : '';
288 $encrypt = intval(PConfig::get(local_user(), 'jappixmini', 'encrypt'));
289 $encrypt_checked = $encrypt ? ' checked="checked"' : '';
290 $encrypt_disabled = $encrypt ? '' : ' disabled="disabled"';
293 $server = Config::get("jappixmini", "default_server");
296 if (($username == "") && Config::get("jappixmini", "default_user")) {
297 $username = $a->user["nickname"];
300 $info_text = Config::get("jappixmini", "infotext");
301 $info_text = htmlentities($info_text);
302 $info_text = str_replace("\n", "<br />", $info_text);
305 $r = q("SELECT COUNT(1) as `cnt` FROM `pconfig` WHERE `uid`=%d AND `cat`='jappixmini' AND `k` LIKE 'id:%%'", local_user());
307 $contact_cnt = $r[0]["cnt"];
312 // count jabber addresses
313 $r = q("SELECT COUNT(1) as `cnt` FROM `pconfig` WHERE `uid`=%d AND `cat`='jappixmini' AND `k` LIKE 'id:%%' AND `v` LIKE '%%@%%'", local_user());
315 $address_cnt = $r[0]["cnt"];
321 // load scripts if not yet activated so that password can be saved
322 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/jappix/php/get.php?t=js&g=mini.xml"></script>' . "\r\n";
323 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/jappix/php/get.php?t=js&f=presence.js~caps.js~name.js~roster.js"></script>' . "\r\n";
325 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/lib.js"></script>' . "\r\n";
328 $s .= '<span id="settings_jappixmini_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_jappixmini_expanded\'); openClose(\'settings_jappixmini_inflated\');">';
329 $s .= '<h3>' . t('Jappix Mini') . '</h3>';
331 $s .= '<div id="settings_jappixmini_expanded" class="settings-block" style="display: none;">';
332 $s .= '<span class="fakelink" onclick="openClose(\'settings_jappixmini_expanded\'); openClose(\'settings_jappixmini_inflated\');">';
333 $s .= '<h3>' . t('Jappix Mini') . '</h3>';
336 $s .= '<label for="jappixmini-activate">' . t('Activate addon') . '</label>';
337 $s .= ' <input id="jappixmini-activate" type="checkbox" name="jappixmini-activate" value="1"' . $activate . ' />';
339 $s .= '<label for"jappixmini-dont-insertchat">' . t('Do <em>not</em> insert the Jappixmini Chat-Widget into the webinterface') . '</label>';
340 $s .= '<input id="jappixmini-dont-insertchat" type="checkbox" name="jappixmini-dont-insertchat" value="1"' . $insertchat . ' />';
342 $s .= '<label for="jappixmini-username">' . t('Jabber username') . '</label>';
343 $s .= ' <input id="jappixmini-username" type="text" name="jappixmini-username" value="' . $username . '" />';
345 $s .= '<label for="jappixmini-server">' . t('Jabber server') . '</label>';
346 $s .= ' <input id="jappixmini-server" type="text" name="jappixmini-server" value="' . $server . '" />';
349 if ($defaultbosh == "") {
350 $s .= '<label for="jappixmini-bosh">' . t('Jabber BOSH host') . '</label>';
351 $s .= ' <input id="jappixmini-bosh" type="text" name="jappixmini-bosh" value="' . $bosh . '" />';
355 $s .= '<label for="jappixmini-password">' . t('Jabber password') . '</label>';
356 $s .= ' <input type="hidden" id="jappixmini-password" name="jappixmini-encrypted-password" value="' . $password . '" />';
357 $s .= ' <input id="jappixmini-clear-password" type="password" value="" onchange="jappixmini_set_password();" />';
359 $onchange = "document.getElementById('jappixmini-friendica-password').disabled = !this.checked;jappixmini_set_password();";
360 $s .= '<label for="jappixmini-encrypt">' . t('Encrypt Jabber password with Friendica password (recommended)') . '</label>';
361 $s .= ' <input id="jappixmini-encrypt" type="checkbox" name="jappixmini-encrypt" onchange="' . $onchange . '" value="1"' . $encrypt_checked . ' />';
363 $s .= '<label for="jappixmini-friendica-password">' . t('Friendica password') . '</label>';
364 $s .= ' <input id="jappixmini-friendica-password" name="jappixmini-friendica-password" type="password" onchange="jappixmini_set_password();" value=""' . $encrypt_disabled . ' />';
366 $s .= '<label for="jappixmini-autoapprove">' . t('Approve subscription requests from Friendica contacts automatically') . '</label>';
367 $s .= ' <input id="jappixmini-autoapprove" type="checkbox" name="jappixmini-autoapprove" value="1"' . $autoapprove . ' />';
369 $s .= '<label for="jappixmini-autosubscribe">' . t('Subscribe to Friendica contacts automatically') . '</label>';
370 $s .= ' <input id="jappixmini-autosubscribe" type="checkbox" name="jappixmini-autosubscribe" value="1"' . $autosubscribe . ' />';
372 $s .= '<label for="jappixmini-purge">' . t('Purge internal list of jabber addresses of contacts') . '</label>';
373 $s .= ' <input id="jappixmini-purge" type="checkbox" name="jappixmini-purge" value="1" />';
376 $s .= '<br />Configuration help:<p style="margin-left:2em;">' . $info_text . '</p>';
378 $s .= '<br />Status:<p style="margin-left:2em;">Addon knows ' . $address_cnt . ' Jabber addresses of ' . $contact_cnt . ' Friendica contacts (takes some time, usually 10 minutes, to update).</p>';
379 $s .= '<input type="submit" name="jappixmini-submit" value="' . t('Save Settings') . '" />';
380 $s .= ' <input type="button" value="' . t('Add contact') . '" onclick="jappixmini_addon_subscribe();" />';
384 $a->page['htmlhead'] .= "<script type=\"text/javascript\">
385 function jappixmini_set_password() {
386 encrypt = document.getElementById('jappixmini-encrypt').checked;
387 password = document.getElementById('jappixmini-password');
388 clear_password = document.getElementById('jappixmini-clear-password');
390 friendica_password = document.getElementById('jappixmini-friendica-password');
392 if (friendica_password) {
393 jappixmini_addon_set_client_secret(friendica_password.value);
394 jappixmini_addon_encrypt_password(clear_password.value, function(encrypted_password){
395 password.value = encrypted_password;
400 password.value = clear_password.value;
404 jQuery(document).ready(function() {
405 encrypt = document.getElementById('jappixmini-encrypt').checked;
406 password = document.getElementById('jappixmini-password');
407 clear_password = document.getElementById('jappixmini-clear-password');
409 jappixmini_addon_decrypt_password(password.value, function(decrypted_password){
410 clear_password.value = decrypted_password;
414 clear_password.value = password.value;
420 function jappixmini_settings_post(App $a, &$b)
422 // save addon settings for a user
428 if ($_POST['jappixmini-submit']) {
429 $encrypt = intval($b['jappixmini-encrypt']);
431 // check that Jabber password was encrypted with correct Friendica password
432 $friendica_password = trim($b['jappixmini-friendica-password']);
433 if (!User::authenticate((int) $uid, $friendica_password)) {
434 info("Wrong friendica password!");
439 $purge = intval($b['jappixmini-purge']);
441 $username = trim($b['jappixmini-username']);
442 $old_username = PConfig::get($uid, 'jappixmini', 'username');
443 if ($username != $old_username) {
447 $server = trim($b['jappixmini-server']);
448 $old_server = PConfig::get($uid, 'jappixmini', 'server');
449 if ($server != $old_server) {
453 PConfig::set($uid, 'jappixmini', 'username' , $username);
454 PConfig::set($uid, 'jappixmini', 'server' , $server);
455 PConfig::set($uid, 'jappixmini', 'bosh' , trim($b['jappixmini-bosh']));
456 PConfig::set($uid, 'jappixmini', 'password' , trim($b['jappixmini-encrypted-password']));
457 PConfig::set($uid, 'jappixmini', 'autosubscribe' , intval($b['jappixmini-autosubscribe']));
458 PConfig::set($uid, 'jappixmini', 'autoapprove' , intval($b['jappixmini-autoapprove']));
459 PConfig::set($uid, 'jappixmini', 'activate' , intval($b['jappixmini-activate']));
460 PConfig::set($uid, 'jappixmini', 'dontinsertchat', intval($b['jappixmini-dont-insertchat']));
461 PConfig::set($uid, 'jappixmini', 'encrypt' , $encrypt);
462 info('Jappix Mini settings saved.');
465 q("DELETE FROM `pconfig` WHERE `uid`=$uid AND `cat`='jappixmini' AND `k` LIKE 'id:%%'");
466 info('List of addresses purged.');
471 function jappixmini_script(App $a)
473 // adds the script to the page header which starts Jappix Mini
478 if ($_GET["mode"] == "minimal") {
482 $activate = PConfig::get(local_user(), 'jappixmini', 'activate');
483 $dontinsertchat = PConfig::get(local_user(), 'jappixmini', 'dontinsertchat');
484 if (!$activate || $dontinsertchat) {
488 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/jappix/php/get.php?t=js&g=mini.xml"></script>' . "\r\n";
489 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/jappix/php/get.php?t=js&f=presence.js~caps.js~name.js~roster.js"></script>' . "\r\n";
491 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/lib.js"></script>' . "\r\n";
493 $username = PConfig::get(local_user(), 'jappixmini', 'username');
494 $username = str_replace("'", "\\'", $username);
495 $server = PConfig::get(local_user(), 'jappixmini', 'server');
496 $server = str_replace("'", "\\'", $server);
497 $bosh = PConfig::get(local_user(), 'jappixmini', 'bosh');
498 $bosh = str_replace("'", "\\'", $bosh);
499 $encrypt = PConfig::get(local_user(), 'jappixmini', 'encrypt');
500 $encrypt = intval($encrypt);
501 $password = PConfig::get(local_user(), 'jappixmini', 'password');
502 $password = str_replace("'", "\\'", $password);
504 $autoapprove = PConfig::get(local_user(), 'jappixmini', 'autoapprove');
505 $autoapprove = intval($autoapprove);
506 $autosubscribe = PConfig::get(local_user(), 'jappixmini', 'autosubscribe');
507 $autosubscribe = intval($autosubscribe);
509 // set proxy if necessary
510 $use_proxy = Config::get('jappixmini', 'bosh_proxy');
512 $proxy = $a->get_baseurl() . '/addon/jappixmini/proxy.php';
517 // get a list of jabber accounts of the contacts
520 $rows = q("SELECT * FROM `pconfig` WHERE `uid`=$uid AND `cat`='jappixmini' AND `k` LIKE 'id:%%'");
521 foreach ($rows as $row) {
523 $pos = strpos($key, ":");
524 $dfrn_id = substr($key, $pos + 1);
525 $r = q("SELECT `name` FROM `contact` WHERE `uid`=$uid AND (`dfrn-id`='%s' OR `issued-id`='%s')", dbesc($dfrn_id), dbesc($dfrn_id));
527 $name = $r[0]["name"];
530 $pos = strpos($value, ":");
531 $address = substr($value, $pos + 1);
539 $contacts[$address] = $name;
541 $contacts_json = json_encode($contacts);
542 $contacts_hash = sha1($contacts_json);
545 $r = q("SELECT `username` FROM `user` WHERE `uid`=$uid");
546 $nickname = json_encode($r[0]["username"]);
547 $groupchats = Config::get('jappixmini', 'groupchats');
548 //if $groupchats has no value jappix_addon_start will produce a syntax error
549 if (empty($groupchats)) {
553 // add javascript to start Jappix Mini
554 $a->page['htmlhead'] .= "<script type=\"text/javascript\">
555 jQuery(document).ready(function() {
556 jappixmini_addon_start('$server', '$username', '$proxy', '$bosh', $encrypt, '$password', $nickname, $contacts_json, '$contacts_hash', $autoapprove, $autosubscribe, $groupchats);
563 function jappixmini_login(App $a, &$o)
565 // create client secret on login to be able to encrypt jabber passwords
566 // for setDB and str_sha1, needed by jappixmini_addon_set_client_secret
567 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/jappix/php/get.php?t=js&f=datastore.js~jsjac.js"></script>' . "\r\n";
569 // for jappixmini_addon_set_client_secret
570 $a->page['htmlhead'] .= '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/jappixmini/lib.js"></script>' . "\r\n";
572 // save hash of password
573 $o = str_replace("<form ", "<form onsubmit=\"jappixmini_addon_set_client_secret(this.elements['id_password'].value);return true;\" ", $o);
576 function jappixmini_cron(App $a, $d)
578 // For autosubscribe/autoapprove, we need to maintain a list of jabber addresses of our contacts.
579 Config::set("jappixmini", "last_cron_execution", $d);
581 // go through list of users with jabber enabled
582 $users = q("SELECT `uid` FROM `pconfig` WHERE `cat`='jappixmini' AND (`k`='autosubscribe' OR `k`='autoapprove') AND `v`='1'");
583 logger("jappixmini: Update list of contacts' jabber accounts for " . count($users) . " users.");
585 if (!count($users)) {
589 foreach ($users as $row) {
592 // for each user, go through list of contacts
593 $contacts = q("SELECT * FROM `contact` WHERE `uid`=%d AND ((LENGTH(`dfrn-id`) AND LENGTH(`pubkey`)) OR (LENGTH(`issued-id`) AND LENGTH(`prvkey`))) AND `network` = '%s'",
594 intval($uid), dbesc(NETWORK_DFRN));
595 foreach ($contacts as $contact_row) {
596 $request = $contact_row["request"];
601 $dfrn_id = $contact_row["dfrn-id"];
603 $key = $contact_row["pubkey"];
604 $encrypt_func = openssl_public_encrypt;
605 $decrypt_func = openssl_public_decrypt;
608 $dfrn_id = $contact_row["issued-id"];
609 $key = $contact_row["prvkey"];
610 $encrypt_func = openssl_private_encrypt;
611 $decrypt_func = openssl_private_decrypt;
615 // check if jabber address already present
616 $present = PConfig::get($uid, "jappixmini", "id:" . $dfrn_id);
617 $now = intval(time());
619 // $present has format "timestamp:jabber_address"
620 $p = strpos($present, ":");
621 $timestamp = intval(substr($present, 0, $p));
623 // do not re-retrieve jabber address if last retrieval
624 // is not older than a week
625 if ($now - $timestamp < 3600 * 24 * 7) {
630 // construct base retrieval address
631 $pos = strpos($request, "/dfrn_request/");
632 if ($pos === false) {
636 $base = substr($request, 0, $pos) . "/jappixmini?role=$role";
638 // construct own address
639 $username = PConfig::get($uid, 'jappixmini', 'username');
643 $server = PConfig::get($uid, 'jappixmini', 'server');
648 $address = $username . "@" . $server;
651 $signed_address = "";
652 $encrypt_func($address, $signed_address, $key);
654 // construct request url
655 $signed_address_hex = bin2hex($signed_address);
656 $url = $base . "&signed_address=$signed_address_hex&dfrn_id=" . urlencode($dfrn_id);
660 $answer_json = fetch_url($url);
663 $answer = json_decode($answer_json);
664 if ($answer->status != "ok") {
665 throw new Exception();
668 $encrypted_address_hex = $answer->encrypted_address;
669 if (!$encrypted_address_hex) {
670 throw new Exception();
673 $encrypted_address = hex2bin($encrypted_address_hex);
674 if (!$encrypted_address) {
675 throw new Exception();
679 $decrypted_address = "";
680 $decrypt_func($encrypted_address, $decrypted_address, $key);
681 if (!$decrypted_address) {
682 throw new Exception();
684 } catch (Exception $e) {
685 $decrypted_address = "";
689 PConfig::set($uid, "jappixmini", "id:$dfrn_id", "$now:$decrypted_address");
694 function jappixmini_download_source(App $a, &$b)
696 // Jappix Mini source download link on About page
697 $b .= '<h1>Jappix Mini</h1>';
698 $b .= '<p>This site uses the jappixmini addon, which includes Jappix Mini by the <a href="' . $a->get_baseurl() . '/addon/jappixmini/jappix/AUTHORS">Jappix authors</a> and is distributed under the terms of the <a href="' . $a->get_baseurl() . '/addon/jappixmini/jappix/COPYING">GNU Affero General Public License</a>.</p>';
699 $b .= '<p>You can download the <a href="' . $a->get_baseurl() . '/addon/jappixmini.tgz">source code of the addon</a>. The rest of Friendica is distributed under compatible licenses and can be retrieved from <a href="https://github.com/friendica/friendica">https://github.com/friendica/friendica</a> and <a href="https://github.com/friendica/friendica-addons">https://github.com/friendica/friendica-addons</a></p>';