3 * Laconica - a distributed open-source microblogging tool
4 * Copyright (C) 2008, Controlez-Vous, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 /* XXX: break up into separate modules (HTTP, HTML, user, files) */
24 function common_server_error($msg, $code=500) {
25 static $status = array(500 => 'Internal Server Error',
26 501 => 'Not Implemented',
28 503 => 'Service Unavailable',
29 504 => 'Gateway Timeout',
30 505 => 'HTTP Version Not Supported');
32 if (!array_key_exists($code, $status)) {
36 $status_string = $status[$code];
38 header('HTTP/1.1 '.$code.' '.$status_string);
39 header('Content-type: text/plain');
47 function common_user_error($msg, $code=400) {
48 static $status = array(400 => 'Bad Request',
49 401 => 'Unauthorized',
50 402 => 'Payment Required',
53 405 => 'Method Not Allowed',
54 406 => 'Not Acceptable',
55 407 => 'Proxy Authentication Required',
56 408 => 'Request Timeout',
59 411 => 'Length Required',
60 412 => 'Precondition Failed',
61 413 => 'Request Entity Too Large',
62 414 => 'Request-URI Too Long',
63 415 => 'Unsupported Media Type',
64 416 => 'Requested Range Not Satisfiable',
65 417 => 'Expectation Failed');
67 if (!array_key_exists($code, $status)) {
71 $status_string = $status[$code];
73 header('HTTP/1.1 '.$code.' '.$status_string);
75 common_show_header('Error');
76 common_element('div', array('class' => 'error'), $msg);
82 # Start an HTML element
83 function common_element_start($tag, $attrs=NULL) {
85 $xw->startElement($tag);
86 if (is_array($attrs)) {
87 foreach ($attrs as $name => $value) {
88 $xw->writeAttribute($name, $value);
90 } else if (is_string($attrs)) {
91 $xw->writeAttribute('class', $attrs);
95 function common_element_end($tag) {
96 static $empty_tag = array('base', 'meta', 'link', 'hr',
97 'br', 'param', 'img', 'area',
100 # XXX: check namespace
101 if (in_array($tag, $empty_tag)) {
104 $xw->fullEndElement();
108 function common_element($tag, $attrs=NULL, $content=NULL) {
109 common_element_start($tag, $attrs);
111 if (!is_null($content)) {
114 common_element_end($tag);
117 function common_start_xml($doc=NULL, $public=NULL, $system=NULL, $indent=true) {
119 $xw = new XMLWriter();
120 $xw->openURI('php://output');
121 $xw->setIndent($indent);
122 $xw->startDocument('1.0', 'UTF-8');
124 $xw->writeDTD($doc, $public, $system);
128 function common_end_xml() {
134 function common_init_language() {
135 mb_internal_encoding('UTF-8');
136 $language = common_language();
137 # So we don't have to make people install the gettext locales
138 putenv('LANGUAGE='.$language);
139 putenv('LANG='.$language);
140 $locale_set = setlocale(LC_ALL, $language . ".utf8",
142 $language . ".utf-8",
143 $language . ".UTF-8",
145 bindtextdomain("laconica", common_config('site','locale_path'));
146 bind_textdomain_codeset("laconica", "UTF-8");
147 textdomain("laconica");
148 setlocale(LC_CTYPE, 'C');
150 common_log(LOG_INFO,'Language requested:'.$language.' - locale could not be set:',__FILE__);
154 define('PAGE_TYPE_PREFS', 'text/html,application/xhtml+xml,application/xml;q=0.3,text/xml;q=0.2');
156 function common_show_header($pagetitle, $callable=NULL, $data=NULL, $headercall=NULL) {
162 common_element_start('head');
163 common_element('title', NULL,
164 $pagetitle . " - " . $config['site']['name']);
165 common_element('link', array('rel' => 'stylesheet',
166 'type' => 'text/css',
167 'href' => theme_path('display.css') . '?version=' . LACONICA_VERSION,
168 'media' => 'screen, projection, tv'));
169 foreach (array(6,7) as $ver) {
170 if (file_exists(theme_file('ie'.$ver.'.css'))) {
171 # Yes, IE people should be put in jail.
172 $xw->writeComment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
173 'href="'.theme_path('ie'.$ver.'.css').'?version='.LACONICA_VERSION.'" /><![endif]');
177 common_element('script', array('type' => 'text/javascript',
178 'src' => common_path('js/jquery.min.js')),
180 common_element('script', array('type' => 'text/javascript',
181 'src' => common_path('js/jquery.form.js')),
183 common_element('script', array('type' => 'text/javascript',
184 'src' => common_path('js/xbImportNode.js')),
186 common_element('script', array('type' => 'text/javascript',
187 'src' => common_path('js/util.js?version='.LACONICA_VERSION)),
189 common_element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
190 'href' => common_local_url('opensearch', array('type' => 'people')),
191 'title' => common_config('site', 'name').' People Search'));
193 common_element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
194 'href' => common_local_url('opensearch', array('type' => 'notice')),
195 'title' => common_config('site', 'name').' Notice Search'));
199 call_user_func($callable, $data);
201 call_user_func($callable);
204 common_element_end('head');
205 common_element_start('body');
206 common_element_start('div', array('id' => 'wrap'));
207 common_element_start('div', array('id' => 'header'));
209 if ((isset($config['site']['logo']) && is_string($config['site']['logo']) && (strlen($config['site']['logo']) > 0))
210 || file_exists(theme_file('logo.png')))
212 common_element_start('a', array('href' => common_local_url('public')));
213 common_element('img', array('src' => isset($config['site']['logo']) ?
214 ($config['site']['logo']) : theme_path('logo.png'),
215 'alt' => $config['site']['name'],
217 common_element_end('a');
219 common_element_start('p', array('id' => 'branding'));
220 common_element('a', array('href' => common_local_url('public')),
221 $config['site']['name']);
222 common_element_end('p');
225 common_element('h1', 'pagetitle', $pagetitle);
229 call_user_func($headercall, $data);
231 call_user_func($headercall);
234 common_element_end('div');
235 common_element_start('div', array('id' => 'content'));
238 function common_start_html($type=NULL, $indent=true) {
241 $httpaccept = isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : NULL;
243 # XXX: allow content negotiation for RDF, RSS, or XRDS
245 $type = common_negotiate_type(common_accept_to_prefs($httpaccept),
246 common_accept_to_prefs(PAGE_TYPE_PREFS));
249 common_user_error(_('This page is not available in a media type you accept'), 406);
254 header('Content-Type: '.$type);
256 common_start_xml('html',
257 '-//W3C//DTD XHTML 1.0 Strict//EN',
258 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd', $indent);
260 # FIXME: correct language for interface
262 $language = common_language();
264 common_element_start('html', array('xmlns' => 'http://www.w3.org/1999/xhtml',
265 'xml:lang' => $language,
266 'lang' => $language));
269 function common_show_footer() {
271 common_element_end('div'); # content div
273 common_element_start('div', array('id' => 'footer'));
274 common_element_start('div', 'laconica');
275 if (common_config('site', 'broughtby')) {
276 $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%). ');
278 $instr = _('**%%site.name%%** is a microblogging service. ');
280 $instr .= sprintf(_('It runs the [Laconica](http://laconi.ca/) microblogging software, version %s, available under the [GNU Affero General Public License](http://www.fsf.org/licensing/licenses/agpl-3.0.html).'), LACONICA_VERSION);
281 $output = common_markup_to_html($instr);
283 common_element_end('div');
284 common_element('img', array('id' => 'cc',
285 'src' => $config['license']['image'],
286 'alt' => $config['license']['title']));
287 common_element_start('p');
288 common_text(_('Unless otherwise specified, contents of this site are copyright by the contributors and available under the '));
289 common_element('a', array('class' => 'license',
291 'href' => $config['license']['url']),
292 $config['license']['title']);
293 common_text(_('. Contributors should be attributed by full name or nickname.'));
294 common_element_end('p');
295 common_element_end('div');
296 common_element_end('div');
297 common_element_end('body');
298 common_element_end('html');
302 function common_text($txt) {
307 function common_raw($xml) {
312 function common_nav_menu() {
313 $user = common_current_user();
314 common_element_start('ul', array('id' => 'nav'));
316 common_menu_item(common_local_url('all', array('nickname' => $user->nickname)),
319 common_menu_item(common_local_url('peoplesearch'), _('Search'));
321 common_menu_item(common_local_url('profilesettings'),
323 common_menu_item(common_local_url('invite'),
325 common_menu_item(common_local_url('logout'),
328 common_menu_item(common_local_url('login'), _('Login'));
329 if (!common_config('site', 'closed')) {
330 common_menu_item(common_local_url('register'), _('Register'));
332 common_menu_item(common_local_url('openidlogin'), _('OpenID'));
334 common_menu_item(common_local_url('doc', array('title' => 'help')),
336 common_element_end('ul');
339 function common_foot_menu() {
340 common_element_start('ul', array('id' => 'nav_sub'));
341 common_menu_item(common_local_url('doc', array('title' => 'help')),
343 common_menu_item(common_local_url('doc', array('title' => 'about')),
345 common_menu_item(common_local_url('doc', array('title' => 'faq')),
347 common_menu_item(common_local_url('doc', array('title' => 'privacy')),
349 common_menu_item(common_local_url('doc', array('title' => 'source')),
351 common_menu_item(common_local_url('doc', array('title' => 'contact')),
353 common_element_end('ul');
356 function common_menu_item($url, $text, $title=NULL, $is_selected=false) {
359 $lattrs['class'] = 'current';
361 common_element_start('li', $lattrs);
362 $attrs['href'] = $url;
364 $attrs['title'] = $title;
366 common_element('a', $attrs, $text);
367 common_element_end('li');
370 function common_input($id, $label, $value=NULL,$instructions=NULL) {
371 common_element_start('p');
372 common_element('label', array('for' => $id), $label);
373 $attrs = array('name' => $id,
375 'class' => 'input_text',
378 $attrs['value'] = htmlspecialchars($value);
380 common_element('input', $attrs);
382 common_element('span', 'input_instructions', $instructions);
384 common_element_end('p');
387 function common_checkbox($id, $label, $checked=false, $instructions=NULL, $value='true', $disabled=false)
389 common_element_start('p');
390 $attrs = array('name' => $id,
391 'type' => 'checkbox',
392 'class' => 'checkbox',
395 $attrs['value'] = htmlspecialchars($value);
398 $attrs['checked'] = 'checked';
401 $attrs['disabled'] = 'true';
403 common_element('input', $attrs);
406 common_element('span', 'checkbox_label', $label);
409 common_element('span', 'input_instructions', $instructions);
411 common_element_end('p');
414 function common_dropdown($id, $label, $content, $instructions=NULL, $blank_select=FALSE, $selected=NULL) {
415 common_element_start('p');
416 common_element('label', array('for' => $id), $label);
417 common_element_start('select', array('id' => $id, 'name' => $id));
419 common_element('option', array('value' => ''));
421 foreach ($content as $value => $option) {
422 if ($value == $selected) {
423 common_element('option', array('value' => $value, 'selected' => $value), $option);
425 common_element('option', array('value' => $value), $option);
428 common_element_end('select');
430 common_element('span', 'input_instructions', $instructions);
432 common_element_end('p');
434 function common_hidden($id, $value) {
435 common_element('input', array('name' => $id,
441 function common_password($id, $label, $instructions=NULL) {
442 common_element_start('p');
443 common_element('label', array('for' => $id), $label);
444 $attrs = array('name' => $id,
445 'type' => 'password',
446 'class' => 'password',
448 common_element('input', $attrs);
450 common_element('span', 'input_instructions', $instructions);
452 common_element_end('p');
455 function common_submit($id, $label, $cls='submit') {
457 common_element_start('p');
458 common_element('input', array('type' => 'submit',
463 common_element_end('p');
466 function common_textarea($id, $label, $content=NULL, $instructions=NULL) {
467 common_element_start('p');
468 common_element('label', array('for' => $id), $label);
469 common_element('textarea', array('rows' => 3,
473 ($content) ? $content : '');
475 common_element('span', 'input_instructions', $instructions);
477 common_element_end('p');
480 function common_timezone() {
481 if (common_logged_in()) {
482 $user = common_current_user();
483 if ($user->timezone) {
484 return $user->timezone;
489 return $config['site']['timezone'];
492 function common_language() {
494 // If there is a user logged in and they've set a language preference
495 // then return that one...
496 if (common_logged_in()) {
497 $user = common_current_user();
498 $user_language = $user->language;
500 return $user_language;
503 // Otherwise, find the best match for the languages requested by the
505 $httplang = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : NULL;
506 if (!empty($httplang)) {
507 $language = client_prefered_language($httplang);
512 // Finally, if none of the above worked, use the site's default...
513 return common_config('site', 'language');
515 # salted, hashed passwords are stored in the DB
517 function common_munge_password($password, $id) {
518 return md5($password . $id);
521 # check if a username exists and has matching password
522 function common_check_user($nickname, $password) {
523 # NEVER allow blank passwords, even if they match the DB
524 if (mb_strlen($password) == 0) {
527 $user = User::staticGet('nickname', $nickname);
528 if (is_null($user)) {
531 if (0 == strcmp(common_munge_password($password, $user->id),
540 # is the current user logged in?
541 function common_logged_in() {
542 return (!is_null(common_current_user()));
545 function common_have_session() {
546 return (0 != strcmp(session_id(), ''));
549 function common_ensure_session() {
550 if (!common_have_session()) {
555 # Three kinds of arguments:
560 function common_set_user($user) {
561 if (is_null($user) && common_have_session()) {
562 unset($_SESSION['userid']);
564 } else if (is_string($user)) {
566 $user = User::staticGet('nickname', $nickname);
567 } else if (!($user instanceof User)) {
572 common_ensure_session();
573 $_SESSION['userid'] = $user->id;
579 function common_set_cookie($key, $value, $expiration=0) {
580 $path = common_config('site', 'path');
581 $server = common_config('site', 'server');
583 if ($path && ($path != '/')) {
584 $cookiepath = '/' . $path . '/';
588 return setcookie($key,
595 define('REMEMBERME', 'rememberme');
596 define('REMEMBERME_EXPIRY', 30 * 24 * 60 * 60);
598 function common_rememberme($user=NULL) {
600 $user = common_current_user();
602 common_debug('No current user to remember', __FILE__);
606 $rm = new Remember_me();
607 $rm->code = common_good_rand(16);
608 $rm->user_id = $user->id;
609 $result = $rm->insert();
611 common_log_db_error($rm, 'INSERT', __FILE__);
612 common_debug('Error adding rememberme record for ' . $user->nickname, __FILE__);
615 common_log(LOG_INFO, 'adding rememberme cookie for ' . $user->nickname);
616 common_set_cookie(REMEMBERME,
617 implode(':', array($rm->user_id, $rm->code)),
618 time() + REMEMBERME_EXPIRY);
622 function common_remembered_user() {
625 $packed = isset($_COOKIE[REMEMBERME]) ? $_COOKIE[REMEMBERME] : '';
627 list($id, $code) = explode(':', $packed);
629 $rm = Remember_me::staticGet($code);
630 if ($rm && ($rm->user_id == $id)) {
631 $user = User::staticGet($rm->user_id);
634 $result = $rm->delete();
636 common_log_db_error($rm, 'DELETE', __FILE__);
639 common_log(LOG_INFO, 'logging in ' . $user->nickname . ' using rememberme code ' . $rm->code);
640 common_set_user($user->nickname);
641 common_real_login(false);
642 # We issue a new cookie, so they can log in
643 # automatically again after this session
644 common_rememberme($user);
653 # must be called with a valid user!
655 function common_forgetme() {
656 common_set_cookie(REMEMBERME, '', 0);
659 # who is the current user?
660 function common_current_user() {
661 if (isset($_REQUEST[session_name()]) || (isset($_SESSION['userid']) && $_SESSION['userid'])) {
662 common_ensure_session();
663 $id = isset($_SESSION['userid']) ? $_SESSION['userid'] : false;
665 # note: this should cache
666 $user = User::staticGet($id);
670 # that didn't work; try to remember
671 $user = common_remembered_user();
673 common_debug("Got User " . $user->nickname);
674 common_debug("Faking session on remembered user");
675 $_SESSION['userid'] = $user->id;
680 # Logins that are 'remembered' aren't 'real' -- they're subject to
681 # cookie-stealing. So, we don't let them do certain things. New reg,
682 # OpenID, and password logins _are_ real.
684 function common_real_login($real=true) {
685 common_ensure_session();
686 $_SESSION['real_login'] = $real;
689 function common_is_real_login() {
690 return common_logged_in() && $_SESSION['real_login'];
693 # get canonical version of nickname for comparison
694 function common_canonical_nickname($nickname) {
695 # XXX: UTF-8 canonicalization (like combining chars)
696 return strtolower($nickname);
699 # get canonical version of email for comparison
700 function common_canonical_email($email) {
701 # XXX: canonicalize UTF-8
702 # XXX: lcase the domain part
706 define('URL_REGEX', '^|[ \t\r\n])((ftp|http|https|gopher|mailto|news|nntp|telnet|wais|file|prospero|aim|webcal):(([A-Za-z0-9$_.+!*(),;/?:@&~=-])|%[A-Fa-f0-9]{2}){2,}(#([a-zA-Z0-9][a-zA-Z0-9$_.+!*(),;/?:@&~=%-]*))?([A-Za-z0-9$_+!*();/?:~-]))');
708 function common_render_content($text, $notice) {
709 $r = common_render_text($text);
710 $id = $notice->profile_id;
711 $r = preg_replace('/(^|\s+)@([A-Za-z0-9]{1,64})/e', "'\\1@'.common_at_link($id, '\\2')", $r);
712 $r = preg_replace('/^T ([A-Z0-9]{1,64}) /e', "'T '.common_at_link($id, '\\1').' '", $r);
713 $r = preg_replace('/(^|\s+)@#([A-Za-z0-9]{1,64})/e', "'\\1@#'.common_at_hash_link($id, '\\2')", $r);
717 function common_render_text($text) {
718 $r = htmlspecialchars($text);
720 $r = preg_replace('/[\x{0}-\x{8}\x{b}-\x{c}\x{e}-\x{19}]/', '', $r);
721 $r = preg_replace_callback('@https?://[^\]>\s]+@', 'common_render_uri_thingy', $r);
722 $r = preg_replace('/(^|\s+)#([A-Za-z0-9_\-\.]{1,64})/e', "'\\1#'.common_tag_link('\\2')", $r);
727 function common_render_uri_thingy($matches) {
731 # Some heuristics for extracting URIs from surrounding punctuation
732 # Strip from trailing text...
733 if (preg_match('/^(.*)([,.:"\']+)$/', $uri, $matches)) {
735 $trailer = $matches[2];
739 ']' => '[', # technically disallowed in URIs, but used in Java docs
740 ')' => '(', # far too frequent in Wikipedia and MSDN
742 $final = substr($uri, -1, 1);
743 if (isset($pairs[$final])) {
744 $openers = substr_count($uri, $pairs[$final]);
745 $closers = substr_count($uri, $final);
746 if ($closers > $openers) {
747 // Assume the paren was opened outside the URI
748 $uri = substr($uri, 0, -1);
749 $trailer = $final . $trailer;
752 if ($longurl = common_longurl($uri)) {
753 $longurl = htmlentities($longurl, ENT_QUOTES, 'UTF-8');
754 $title = " title='$longurl'";
758 return '<a href="' . $uri . '"' . $title . ' class="extlink">' . $uri . '</a>' . $trailer;
761 function common_longurl($uri) {
762 $uri_e = urlencode($uri);
763 $longurl = unserialize(file_get_contents("http://api.longurl.org/v1/expand?format=php&url=$uri_e"));
764 if (empty($longurl['long_url']) || $uri === $longurl['long_url']) return false;
765 return stripslashes($longurl['long_url']);
768 function common_shorten_links($text) {
769 // \s = not a horizontal whitespace character (since PHP 5.2.4)
770 // RYM this should prevent * preceded URLs from being processed but it its a char
771 // $r = preg_replace('@[^*](https?://[^)\]>\s]+)@e', "common_shorten_link('\\1')", $r);
772 return preg_replace('@https?://[^)\]>\s]+@e', "common_shorten_link('\\0')", $text);
775 function common_shorten_link($long_url) {
777 $user = common_current_user();
779 $curlh = curl_init();
780 curl_setopt($curlh, CURLOPT_CONNECTTIMEOUT, 20); // # seconds to wait
781 curl_setopt($curlh, CURLOPT_USERAGENT, 'Laconica');
782 curl_setopt($curlh, CURLOPT_RETURNTRANSFER, true);
784 switch($user->urlshorteningservice) {
786 $short_url_service = new LilUrl;
787 $short_url = $short_url_service->shorten($long_url);
791 $short_url_service = new TightUrl;
792 $short_url = $short_url_service->shorten($long_url);
796 $short_url_service = new PtitUrl;
797 $short_url = $short_url_service->shorten($long_url);
801 curl_setopt($curlh, CURLOPT_URL, 'http://bit.ly/api?method=shorten&long_url='.urlencode($long_url));
802 $short_url = current(json_decode(curl_exec($curlh))->results)->hashUrl;
806 curl_setopt($curlh, CURLOPT_URL, 'http://is.gd/api.php?longurl='.urlencode($long_url));
807 $short_url = curl_exec($curlh);
810 curl_setopt($curlh, CURLOPT_URL, 'http://snipr.com/site/snip?r=simple&link='.urlencode($long_url));
811 $short_url = curl_exec($curlh);
814 curl_setopt($curlh, CURLOPT_URL, 'http://metamark.net/api/rest/simple?long_url='.urlencode($long_url));
815 $short_url = curl_exec($curlh);
818 curl_setopt($curlh, CURLOPT_URL, 'http://tinyurl.com/api-create.php?url='.urlencode($long_url));
819 $short_url = curl_exec($curlh);
833 function common_xml_safe_str($str) {
834 $xmlStr = htmlentities(iconv('UTF-8', 'UTF-8//IGNORE', $str), ENT_NOQUOTES, 'UTF-8');
836 // Replace control, formatting, and surrogate characters with '*', ala Twitter
837 return preg_replace('/[\p{Cc}\p{Cf}\p{Cs}]/u', '*', $str);
840 function common_tag_link($tag) {
841 $canonical = common_canonical_tag($tag);
842 $url = common_local_url('tag', array('tag' => $canonical));
843 return '<a href="' . htmlspecialchars($url) . '" rel="tag" class="hashlink">' . htmlspecialchars($tag) . '</a>';
846 function common_canonical_tag($tag) {
847 return strtolower(str_replace(array('-', '_', '.'), '', $tag));
850 function common_valid_profile_tag($str) {
851 return preg_match('/^[A-Za-z0-9_\-\.]{1,64}$/', $str);
854 function common_at_link($sender_id, $nickname) {
855 $sender = Profile::staticGet($sender_id);
856 $recipient = common_relative_profile($sender, common_canonical_nickname($nickname));
858 return '<a href="'.htmlspecialchars($recipient->profileurl).'" class="atlink">'.$nickname.'</a>';
864 function common_at_hash_link($sender_id, $tag) {
865 $user = User::staticGet($sender_id);
869 $tagged = Profile_tag::getTagged($user->id, common_canonical_tag($tag));
871 $url = common_local_url('subscriptions',
872 array('nickname' => $user->nickname,
874 return '<a href="'.htmlspecialchars($url).'" class="atlink">'.$tag.'</a>';
880 function common_relative_profile($sender, $nickname, $dt=NULL) {
881 # Try to find profiles this profile is subscribed to that have this nickname
882 $recipient = new Profile();
883 # XXX: use a join instead of a subquery
884 $recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.$sender->id.' and subscribed = id)', 'AND');
885 $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
886 if ($recipient->find(TRUE)) {
887 # XXX: should probably differentiate between profiles with
888 # the same name by date of most recent update
891 # Try to find profiles that listen to this profile and that have this nickname
892 $recipient = new Profile();
893 # XXX: use a join instead of a subquery
894 $recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.$sender->id.' and subscriber = id)', 'AND');
895 $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
896 if ($recipient->find(TRUE)) {
897 # XXX: should probably differentiate between profiles with
898 # the same name by date of most recent update
901 # If this is a local user, try to find a local user with that nickname.
902 $sender = User::staticGet($sender->id);
904 $recipient_user = User::staticGet('nickname', $nickname);
905 if ($recipient_user) {
906 return $recipient_user->getProfile();
909 # Otherwise, no links. @messages from local users to remote users,
910 # or from remote users to other remote users, are just
911 # outside our ability to make intelligent guesses about
915 // where should the avatar go for this user?
917 function common_avatar_filename($id, $extension, $size=NULL, $extra=NULL) {
921 return $id . '-' . $size . (($extra) ? ('-' . $extra) : '') . $extension;
923 return $id . '-original' . (($extra) ? ('-' . $extra) : '') . $extension;
927 function common_avatar_path($filename) {
929 return INSTALLDIR . '/avatar/' . $filename;
932 function common_avatar_url($filename) {
933 return common_path('avatar/'.$filename);
936 function common_avatar_display_url($avatar) {
937 $server = common_config('avatar', 'server');
939 return 'http://'.$server.'/'.$avatar->filename;
945 function common_default_avatar($size) {
946 static $sizenames = array(AVATAR_PROFILE_SIZE => 'profile',
947 AVATAR_STREAM_SIZE => 'stream',
948 AVATAR_MINI_SIZE => 'mini');
949 return theme_path('default-avatar-'.$sizenames[$size].'.png');
952 function common_local_url($action, $args=NULL, $fragment=NULL) {
954 if (common_config('site','fancy')) {
955 $url = common_fancy_url($action, $args);
957 $url = common_simple_url($action, $args);
959 if (!is_null($fragment)) {
960 $url .= '#'.$fragment;
965 function common_fancy_url($action, $args=NULL) {
966 switch (strtolower($action)) {
968 if ($args && isset($args['page'])) {
969 return common_path('?page=' . $args['page']);
971 return common_path('');
974 if ($args && isset($args['page'])) {
975 return common_path('featured?page=' . $args['page']);
977 return common_path('featured');
980 if ($args && isset($args['page'])) {
981 return common_path('favorited?page=' . $args['page']);
983 return common_path('favorited');
986 return common_path('rss');
988 return common_path('xrds');
990 return common_path('featuredrss');
992 return common_path('favoritedrss');
994 if ($args && $args['type']) {
995 return common_path('opensearch/'.$args['type']);
997 return common_path('opensearch/people');
1000 return common_path('doc/'.$args['title']);
1006 return common_path('main/'.$action);
1008 return common_path('main/tagother?id='.$args['id']);
1010 if ($args && $args['code']) {
1011 return common_path('main/register/'.$args['code']);
1013 return common_path('main/register');
1015 case 'remotesubscribe':
1016 if ($args && $args['nickname']) {
1017 return common_path('main/remote?nickname=' . $args['nickname']);
1019 return common_path('main/remote');
1022 return common_path($args['nickname'].'/nudge');
1024 return common_path('main/openid');
1025 case 'profilesettings':
1026 return common_path('settings/profile');
1027 case 'emailsettings':
1028 return common_path('settings/email');
1029 case 'openidsettings':
1030 return common_path('settings/openid');
1032 return common_path('settings/sms');
1033 case 'twittersettings':
1034 return common_path('settings/twitter');
1035 case 'othersettings':
1036 return common_path('settings/other');
1038 if ($args && $args['replyto']) {
1039 return common_path('notice/new?replyto='.$args['replyto']);
1041 return common_path('notice/new');
1044 return common_path('notice/'.$args['notice']);
1045 case 'deletenotice':
1046 if ($args && $args['notice']) {
1047 return common_path('notice/delete/'.$args['notice']);
1049 return common_path('notice/delete');
1051 case 'microsummary':
1054 return common_path($args['nickname'].'/'.$action);
1059 if ($args && isset($args['page'])) {
1060 return common_path($args['nickname'].'/'.$action.'?page=' . $args['page']);
1062 return common_path($args['nickname'].'/'.$action);
1064 case 'subscriptions':
1066 $nickname = $args['nickname'];
1067 unset($args['nickname']);
1068 if (isset($args['tag'])) {
1069 $tag = $args['tag'];
1070 unset($args['tag']);
1072 $params = http_build_query($args);
1074 return common_path($nickname.'/'.$action . (($tag) ? '/' . $tag : '') . '?' . $params);
1076 return common_path($nickname.'/'.$action . (($tag) ? '/' . $tag : ''));
1079 return common_path($args['nickname'].'/all/rss');
1081 return common_path($args['nickname'].'/replies/rss');
1083 return common_path($args['nickname'].'/rss');
1085 if ($args && isset($args['page'])) {
1086 return common_path($args['nickname'].'?page=' . $args['page']);
1088 return common_path($args['nickname']);
1091 case 'usertimeline':
1092 return common_path("api/statuses/user_timeline/".$args['nickname'].".atom");
1093 case 'confirmaddress':
1094 return common_path('main/confirmaddress/'.$args['code']);
1096 return common_path('user/'.$args['id']);
1097 case 'recoverpassword':
1098 $path = 'main/recoverpassword';
1099 if ($args['code']) {
1100 $path .= '/' . $args['code'];
1102 return common_path($path);
1104 return common_path('settings/im');
1105 case 'peoplesearch':
1106 return common_path('search/people' . (($args) ? ('?' . http_build_query($args)) : ''));
1107 case 'noticesearch':
1108 return common_path('search/notice' . (($args) ? ('?' . http_build_query($args)) : ''));
1109 case 'noticesearchrss':
1110 return common_path('search/notice/rss' . (($args) ? ('?' . http_build_query($args)) : ''));
1111 case 'avatarbynickname':
1112 return common_path($args['nickname'].'/avatar/'.$args['size']);
1114 if (isset($args['tag']) && $args['tag']) {
1115 $path = 'tag/' . $args['tag'];
1116 unset($args['tag']);
1120 return common_path($path . (($args) ? ('?' . http_build_query($args)) : ''));
1122 $path = 'peopletag/' . $args['tag'];
1123 unset($args['tag']);
1124 return common_path($path . (($args) ? ('?' . http_build_query($args)) : ''));
1126 return common_path('tags' . (($args) ? ('?' . http_build_query($args)) : ''));
1128 return common_path('main/favor');
1130 return common_path('main/disfavor');
1131 case 'showfavorites':
1132 if ($args && isset($args['page'])) {
1133 return common_path($args['nickname'].'/favorites?page=' . $args['page']);
1135 return common_path($args['nickname'].'/favorites');
1137 case 'favoritesrss':
1138 return common_path($args['nickname'].'/favorites/rss');
1140 return common_path('message/' . $args['message']);
1142 return common_path('message/new' . (($args) ? ('?' . http_build_query($args)) : ''));
1144 # XXX: do fancy URLs for all the API methods
1145 switch (strtolower($args['apiaction'])) {
1147 switch (strtolower($args['method'])) {
1148 case 'user_timeline.rss':
1149 return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
1150 case 'user_timeline.atom':
1151 return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
1152 case 'user_timeline.rss':
1153 return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
1154 case 'user_timeline.atom':
1155 return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
1156 default: return common_simple_url($action, $args);
1158 default: return common_simple_url($action, $args);
1161 if ($args && isset($args['seconds'])) {
1162 return common_path('main/sup?seconds='.$args['seconds']);
1164 return common_path('main/sup');
1167 return common_simple_url($action, $args);
1171 function common_simple_url($action, $args=NULL) {
1173 /* XXX: pretty URLs */
1176 foreach ($args as $key => $value) {
1177 $extra .= "&${key}=${value}";
1180 return common_path("index.php?action=${action}${extra}");
1183 function common_path($relative) {
1185 $pathpart = ($config['site']['path']) ? $config['site']['path']."/" : '';
1186 return "http://".$config['site']['server'].'/'.$pathpart.$relative;
1189 function common_date_string($dt) {
1190 // XXX: do some sexy date formatting
1191 // return date(DATE_RFC822, $dt);
1192 $t = strtotime($dt);
1196 if ($now < $t) { # that shouldn't happen!
1197 return common_exact_date($dt);
1198 } else if ($diff < 60) {
1199 return _('a few seconds ago');
1200 } else if ($diff < 92) {
1201 return _('about a minute ago');
1202 } else if ($diff < 3300) {
1203 return sprintf(_('about %d minutes ago'), round($diff/60));
1204 } else if ($diff < 5400) {
1205 return _('about an hour ago');
1206 } else if ($diff < 22 * 3600) {
1207 return sprintf(_('about %d hours ago'), round($diff/3600));
1208 } else if ($diff < 37 * 3600) {
1209 return _('about a day ago');
1210 } else if ($diff < 24 * 24 * 3600) {
1211 return sprintf(_('about %d days ago'), round($diff/(24*3600)));
1212 } else if ($diff < 46 * 24 * 3600) {
1213 return _('about a month ago');
1214 } else if ($diff < 330 * 24 * 3600) {
1215 return sprintf(_('about %d months ago'), round($diff/(30*24*3600)));
1216 } else if ($diff < 480 * 24 * 3600) {
1217 return _('about a year ago');
1219 return common_exact_date($dt);
1223 function common_exact_date($dt) {
1228 $_utc = new DateTimeZone('UTC');
1229 $_siteTz = new DateTimeZone(common_timezone());
1232 $dateStr = date('d F Y H:i:s', strtotime($dt));
1233 $d = new DateTime($dateStr, $_utc);
1234 $d->setTimezone($_siteTz);
1235 return $d->format(DATE_RFC850);
1238 function common_date_w3dtf($dt) {
1239 $dateStr = date('d F Y H:i:s', strtotime($dt));
1240 $d = new DateTime($dateStr, new DateTimeZone('UTC'));
1241 $d->setTimezone(new DateTimeZone(common_timezone()));
1242 return $d->format(DATE_W3C);
1245 function common_date_rfc2822($dt) {
1246 $dateStr = date('d F Y H:i:s', strtotime($dt));
1247 $d = new DateTime($dateStr, new DateTimeZone('UTC'));
1248 $d->setTimezone(new DateTimeZone(common_timezone()));
1249 return $d->format('r');
1252 function common_date_iso8601($dt) {
1253 $dateStr = date('d F Y H:i:s', strtotime($dt));
1254 $d = new DateTime($dateStr, new DateTimeZone('UTC'));
1255 $d->setTimezone(new DateTimeZone(common_timezone()));
1256 return $d->format('c');
1259 function common_sql_now() {
1260 return strftime('%Y-%m-%d %H:%M:%S', time());
1263 function common_redirect($url, $code=307) {
1264 static $status = array(301 => "Moved Permanently",
1267 307 => "Temporary Redirect");
1268 header("Status: ${code} $status[$code]");
1269 header("Location: $url");
1271 common_start_xml('a',
1272 '-//W3C//DTD XHTML 1.0 Strict//EN',
1273 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
1274 common_element('a', array('href' => $url), $url);
1279 function common_save_replies($notice) {
1280 # Alternative reply format
1282 if (preg_match('/^T ([A-Z0-9]{1,64}) /', $notice->content, $match)) {
1285 # extract all @messages
1286 $cnt = preg_match_all('/(?:^|\s)@([a-z0-9]{1,64})/', $notice->content, $match);
1290 if ($cnt || $tname) {
1291 # XXX: is there another way to make an array copy?
1292 $names = ($tname) ? array_unique(array_merge(array(strtolower($tname)), $match[1])) : array_unique($match[1]);
1295 $sender = Profile::staticGet($notice->profile_id);
1299 # store replied only for first @ (what user/notice what the reply directed,
1300 # we assume first @ is it)
1302 for ($i=0; $i<count($names); $i++) {
1303 $nickname = $names[$i];
1304 $recipient = common_relative_profile($sender, $nickname, $notice->created);
1308 if ($i == 0 && ($recipient->id != $sender->id) && !$notice->reply_to) { # Don't save reply to self
1309 $reply_for = $recipient;
1310 $recipient_notice = $reply_for->getCurrentNotice();
1311 if ($recipient_notice) {
1312 $orig = clone($notice);
1313 $notice->reply_to = $recipient_notice->id;
1314 $notice->update($orig);
1317 $reply = new Reply();
1318 $reply->notice_id = $notice->id;
1319 $reply->profile_id = $recipient->id;
1320 $id = $reply->insert();
1322 $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
1323 common_log(LOG_ERR, 'DB error inserting reply: ' . $last_error->message);
1324 common_server_error(sprintf(_('DB error inserting reply: %s'), $last_error->message));
1327 $replied[$recipient->id] = 1;
1331 # Hash format replies, too
1332 $cnt = preg_match_all('/(?:^|\s)@#([a-z0-9]{1,64})/', $notice->content, $match);
1334 foreach ($match[1] as $tag) {
1335 $tagged = Profile_tag::getTagged($sender->id, $tag);
1336 foreach ($tagged as $t) {
1337 if (!$replied[$t->id]) {
1338 $reply = new Reply();
1339 $reply->notice_id = $notice->id;
1340 $reply->profile_id = $t->id;
1341 $id = $reply->insert();
1343 common_log_db_error($reply, 'INSERT', __FILE__);
1352 function common_broadcast_notice($notice, $remote=false) {
1354 // Check to see if notice should go to Twitter
1355 $flink = Foreign_link::getByUserID($notice->profile_id, 1); // 1 == Twitter
1356 if (($flink->noticesync & FOREIGN_NOTICE_SEND) == FOREIGN_NOTICE_SEND) {
1358 // If it's not a Twitter-style reply, or if the user WANTS to send replies...
1360 if (!preg_match('/^@[a-zA-Z0-9_]{1,15}\b/u', $notice->content) ||
1361 (($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY) == FOREIGN_NOTICE_SEND_REPLY)) {
1363 $result = common_twitter_broadcast($notice, $flink);
1366 common_debug('Unable to send notice: ' . $notice->id . ' to Twitter.', __FILE__);
1371 if (common_config('queue', 'enabled')) {
1373 return common_enqueue_notice($notice);
1375 return common_real_broadcast($notice, $remote);
1379 function common_twitter_broadcast($notice, $flink) {
1382 $fuser = $flink->getForeignUser();
1383 $twitter_user = $fuser->nickname;
1384 $twitter_password = $flink->credentials;
1385 $uri = 'http://www.twitter.com/statuses/update.json';
1387 // XXX: Hack to get around PHP cURL's use of @ being a a meta character
1388 $statustxt = preg_replace('/^@/', ' @', $notice->content);
1391 CURLOPT_USERPWD => "$twitter_user:$twitter_password",
1392 CURLOPT_POST => true,
1393 CURLOPT_POSTFIELDS => array(
1394 'status' => $statustxt,
1395 'source' => $config['integration']['source']
1397 CURLOPT_RETURNTRANSFER => true,
1398 CURLOPT_FAILONERROR => true,
1399 CURLOPT_HEADER => false,
1400 CURLOPT_FOLLOWLOCATION => true,
1401 CURLOPT_USERAGENT => "Laconica",
1402 CURLOPT_CONNECTTIMEOUT => 120, // XXX: Scary!!!! How long should this be?
1403 CURLOPT_TIMEOUT => 120
1406 $ch = curl_init($uri);
1407 curl_setopt_array($ch, $options);
1408 $data = curl_exec($ch);
1409 $errmsg = curl_error($ch);
1412 common_debug("cURL error: $errmsg - trying to send notice for $twitter_user.",
1420 common_debug("No data returned by Twitter's API trying to send update for $twitter_user",
1425 // Twitter should return a status
1426 $status = json_decode($data);
1429 common_debug("Unexpected data returned by Twitter API trying to send update for $twitter_user",
1437 # Stick the notice on the queue
1439 function common_enqueue_notice($notice) {
1440 foreach (array('jabber', 'omb', 'sms', 'public') as $transport) {
1441 $qi = new Queue_item();
1442 $qi->notice_id = $notice->id;
1443 $qi->transport = $transport;
1444 $qi->created = $notice->created;
1445 $result = $qi->insert();
1447 $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
1448 common_log(LOG_ERR, 'DB error inserting queue item: ' . $last_error->message);
1451 common_log(LOG_DEBUG, 'complete queueing notice ID = ' . $notice->id . ' for ' . $transport);
1456 function common_dequeue_notice($notice) {
1457 $qi = Queue_item::staticGet($notice->id);
1459 $result = $qi->delete();
1461 $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
1462 common_log(LOG_ERR, 'DB error deleting queue item: ' . $last_error->message);
1465 common_log(LOG_DEBUG, 'complete dequeueing notice ID = ' . $notice->id);
1472 function common_real_broadcast($notice, $remote=false) {
1475 # Make sure we have the OMB stuff
1476 require_once(INSTALLDIR.'/lib/omb.php');
1477 $success = omb_broadcast_remote_subscribers($notice);
1479 common_log(LOG_ERR, 'Error in OMB broadcast for notice ' . $notice->id);
1483 require_once(INSTALLDIR.'/lib/jabber.php');
1484 $success = jabber_broadcast_notice($notice);
1486 common_log(LOG_ERR, 'Error in jabber broadcast for notice ' . $notice->id);
1490 require_once(INSTALLDIR.'/lib/mail.php');
1491 $success = mail_broadcast_notice_sms($notice);
1493 common_log(LOG_ERR, 'Error in sms broadcast for notice ' . $notice->id);
1497 $success = jabber_public_notice($notice);
1499 common_log(LOG_ERR, 'Error in public broadcast for notice ' . $notice->id);
1502 // XXX: broadcast notices to other IM
1506 function common_broadcast_profile($profile) {
1507 // XXX: optionally use a queue system like http://code.google.com/p/microapps/wiki/NQDQ
1508 require_once(INSTALLDIR.'/lib/omb.php');
1509 omb_broadcast_profile($profile);
1510 // XXX: Other broadcasts...?
1514 function common_profile_url($nickname) {
1515 return common_local_url('showstream', array('nickname' => $nickname));
1518 # Don't call if nobody's logged in
1520 function common_notice_form($action=NULL, $content=NULL) {
1521 $user = common_current_user();
1522 assert(!is_null($user));
1523 common_element_start('form', array('id' => 'status_form',
1525 'action' => common_local_url('newnotice')));
1526 common_element_start('p');
1527 common_element('label', array('for' => 'status_textarea',
1528 'id' => 'status_label'),
1529 sprintf(_('What\'s up, %s?'), $user->nickname));
1530 common_element('span', array('id' => 'counter', 'class' => 'counter'), '140');
1531 common_element('textarea', array('id' => 'status_textarea',
1534 'name' => 'status_textarea'),
1535 ($content) ? $content : '');
1536 common_hidden('token', common_session_token());
1538 common_hidden('returnto', $action);
1541 common_hidden('inreplyto', 'false');
1542 common_element('input', array('id' => 'status_submit',
1543 'name' => 'status_submit',
1545 'value' => _('Send')));
1546 common_element_end('p');
1547 common_element_end('form');
1550 # Should make up a reasonable root URL
1552 function common_root_url() {
1553 return common_path('');
1556 # returns $bytes bytes of random data as a hexadecimal string
1557 # "good" here is a goal and not a guarantee
1559 function common_good_rand($bytes) {
1560 # XXX: use random.org...?
1561 if (file_exists('/dev/urandom')) {
1562 return common_urandom($bytes);
1563 } else { # FIXME: this is probably not good enough
1564 return common_mtrand($bytes);
1568 function common_urandom($bytes) {
1569 $h = fopen('/dev/urandom', 'rb');
1571 $src = fread($h, $bytes);
1574 for ($i = 0; $i < $bytes; $i++) {
1575 $enc .= sprintf("%02x", (ord($src[$i])));
1580 function common_mtrand($bytes) {
1582 for ($i = 0; $i < $bytes; $i++) {
1583 $enc .= sprintf("%02x", mt_rand(0, 255));
1588 function common_set_returnto($url) {
1589 common_ensure_session();
1590 $_SESSION['returnto'] = $url;
1593 function common_get_returnto() {
1594 common_ensure_session();
1595 return $_SESSION['returnto'];
1598 function common_timestamp() {
1599 return date('YmdHis');
1602 function common_ensure_syslog() {
1603 static $initialized = false;
1604 if (!$initialized) {
1606 openlog($config['syslog']['appname'], 0, LOG_USER);
1607 $initialized = true;
1611 function common_log($priority, $msg, $filename=NULL) {
1612 $logfile = common_config('site', 'logfile');
1614 $log = fopen($logfile, "a");
1616 static $syslog_priorities = array('LOG_EMERG', 'LOG_ALERT', 'LOG_CRIT', 'LOG_ERR',
1617 'LOG_WARNING', 'LOG_NOTICE', 'LOG_INFO', 'LOG_DEBUG');
1618 $output = date('Y-m-d H:i:s') . ' ' . $syslog_priorities[$priority] . ': ' . $msg . "\n";
1619 fwrite($log, $output);
1623 common_ensure_syslog();
1624 syslog($priority, $msg);
1628 function common_debug($msg, $filename=NULL) {
1630 common_log(LOG_DEBUG, basename($filename).' - '.$msg);
1632 common_log(LOG_DEBUG, $msg);
1636 function common_log_db_error(&$object, $verb, $filename=NULL) {
1637 $objstr = common_log_objstring($object);
1638 $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
1639 common_log(LOG_ERR, $last_error->message . '(' . $verb . ' on ' . $objstr . ')', $filename);
1642 function common_log_objstring(&$object) {
1643 if (is_null($object)) {
1646 $arr = $object->toArray();
1648 foreach ($arr as $k => $v) {
1649 $fields[] = "$k='$v'";
1651 $objstring = $object->tableName() . '[' . implode(',', $fields) . ']';
1655 function common_valid_http_url($url) {
1656 return Validate::uri($url, array('allowed_schemes' => array('http', 'https')));
1659 function common_valid_tag($tag) {
1660 if (preg_match('/^tag:(.*?),(\d{4}(-\d{2}(-\d{2})?)?):(.*)$/', $tag, $matches)) {
1661 return (Validate::email($matches[1]) ||
1662 preg_match('/^([\w-\.]+)$/', $matches[1]));
1667 # Does a little before-after block for next/prev page
1669 function common_pagination($have_before, $have_after, $page, $action, $args=NULL) {
1671 if ($have_before || $have_after) {
1672 common_element_start('div', array('id' => 'pagination'));
1673 common_element_start('ul', array('id' => 'nav_pagination'));
1677 $pargs = array('page' => $page-1);
1678 $newargs = ($args) ? array_merge($args,$pargs) : $pargs;
1680 common_element_start('li', 'before');
1681 common_element('a', array('href' => common_local_url($action, $newargs)),
1683 common_element_end('li');
1687 $pargs = array('page' => $page+1);
1688 $newargs = ($args) ? array_merge($args,$pargs) : $pargs;
1689 common_element_start('li', 'after');
1690 common_element('a', array('href' => common_local_url($action, $newargs)),
1692 common_element_end('li');
1695 if ($have_before || $have_after) {
1696 common_element_end('ul');
1697 common_element_end('div');
1701 /* Following functions are copied from MediaWiki GlobalFunctions.php
1702 * and written by Evan Prodromou. */
1704 function common_accept_to_prefs($accept, $def = '*/*') {
1705 # No arg means accept anything (per HTTP spec)
1707 return array($def => 1);
1712 $parts = explode(',', $accept);
1714 foreach($parts as $part) {
1715 # FIXME: doesn't deal with params like 'text/html; level=1'
1716 @list($value, $qpart) = explode(';', $part);
1718 if(!isset($qpart)) {
1720 } elseif(preg_match('/q\s*=\s*(\d*\.\d+)/', $qpart, $match)) {
1721 $prefs[$value] = $match[1];
1728 function common_mime_type_match($type, $avail) {
1729 if(array_key_exists($type, $avail)) {
1732 $parts = explode('/', $type);
1733 if(array_key_exists($parts[0] . '/*', $avail)) {
1734 return $parts[0] . '/*';
1735 } elseif(array_key_exists('*/*', $avail)) {
1743 function common_negotiate_type($cprefs, $sprefs) {
1746 foreach(array_keys($sprefs) as $type) {
1747 $parts = explode('/', $type);
1748 if($parts[1] != '*') {
1749 $ckey = common_mime_type_match($type, $cprefs);
1751 $combine[$type] = $sprefs[$type] * $cprefs[$ckey];
1756 foreach(array_keys($cprefs) as $type) {
1757 $parts = explode('/', $type);
1758 if($parts[1] != '*' && !array_key_exists($type, $sprefs)) {
1759 $skey = common_mime_type_match($type, $sprefs);
1761 $combine[$type] = $sprefs[$skey] * $cprefs[$type];
1767 $besttype = "text/html";
1769 foreach(array_keys($combine) as $type) {
1770 if($combine[$type] > $bestq) {
1772 $bestq = $combine[$type];
1779 function common_config($main, $sub) {
1781 return isset($config[$main][$sub]) ? $config[$main][$sub] : false;
1784 function common_copy_args($from) {
1786 $strip = get_magic_quotes_gpc();
1787 foreach ($from as $k => $v) {
1788 $to[$k] = ($strip) ? stripslashes($v) : $v;
1793 // Neutralise the evil effects of magic_quotes_gpc in the current request.
1794 // This is used before handing a request off to OAuthRequest::from_request.
1795 function common_remove_magic_from_request() {
1796 if(get_magic_quotes_gpc()) {
1797 $_POST=array_map('stripslashes',$_POST);
1798 $_GET=array_map('stripslashes',$_GET);
1802 function common_user_uri(&$user) {
1803 return common_local_url('userbyid', array('id' => $user->id));
1806 function common_notice_uri(&$notice) {
1807 return common_local_url('shownotice',
1808 array('notice' => $notice->id));
1811 # 36 alphanums - lookalikes (0, O, 1, I) = 32 chars = 5 bits
1813 function common_confirmation_code($bits) {
1814 # 36 alphanums - lookalikes (0, O, 1, I) = 32 chars = 5 bits
1815 static $codechars = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ';
1816 $chars = ceil($bits/5);
1818 for ($i = 0; $i < $chars; $i++) {
1819 # XXX: convert to string and back
1820 $num = hexdec(common_good_rand(1));
1821 # XXX: randomness is too precious to throw away almost
1822 # 40% of the bits we get!
1823 $code .= $codechars[$num%32];
1828 # convert markup to HTML
1830 function common_markup_to_html($c) {
1831 $c = preg_replace('/%%action.(\w+)%%/e', "common_local_url('\\1')", $c);
1832 $c = preg_replace('/%%doc.(\w+)%%/e', "common_local_url('doc', array('title'=>'\\1'))", $c);
1833 $c = preg_replace('/%%(\w+).(\w+)%%/e', 'common_config(\'\\1\', \'\\2\')', $c);
1834 return Markdown($c);
1837 function common_profile_avatar_url($profile, $size=AVATAR_PROFILE_SIZE) {
1838 $avatar = $profile->getAvatar($size);
1840 return common_avatar_display_url($avatar);
1842 return common_default_avatar($size);
1846 function common_profile_uri($profile) {
1850 $user = User::staticGet($profile->id);
1855 $remote = Remote_profile::staticGet($profile->id);
1857 return $remote->uri;
1859 # XXX: this is a very bad profile!
1863 function common_canonical_sms($sms) {
1865 preg_replace('/\D/', '', $sms);
1869 function common_error_handler($errno, $errstr, $errfile, $errline, $errcontext) {
1872 common_log(LOG_ERR, "[$errno] $errstr ($errfile:$errline)");
1876 case E_USER_WARNING:
1877 common_log(LOG_WARNING, "[$errno] $errstr ($errfile:$errline)");
1881 common_log(LOG_NOTICE, "[$errno] $errstr ($errfile:$errline)");
1885 # FIXME: show error page if we're on the Web
1886 /* Don't execute PHP internal error handler */
1890 function common_session_token() {
1891 common_ensure_session();
1892 if (!array_key_exists('token', $_SESSION)) {
1893 $_SESSION['token'] = common_good_rand(64);
1895 return $_SESSION['token'];
1898 function common_disfavor_form($notice) {
1899 common_element_start('form', array('id' => 'disfavor-' . $notice->id,
1901 'class' => 'disfavor',
1902 'action' => common_local_url('disfavor')));
1904 common_element('input', array('type' => 'hidden',
1905 'name' => 'token-'. $notice->id,
1906 'id' => 'token-'. $notice->id,
1908 'value' => common_session_token()));
1910 common_element('input', array('type' => 'hidden',
1912 'id' => 'notice-n'. $notice->id,
1913 'class' => 'notice',
1914 'value' => $notice->id));
1916 common_element('input', array('type' => 'submit',
1917 'id' => 'disfavor-submit-' . $notice->id,
1918 'name' => 'disfavor-submit-' . $notice->id,
1919 'class' => 'disfavor',
1920 'value' => 'Disfavor favorite',
1921 'title' => 'Remove this message from favorites'));
1922 common_element_end('form');
1925 function common_favor_form($notice) {
1926 common_element_start('form', array('id' => 'favor-' . $notice->id,
1929 'action' => common_local_url('favor')));
1931 common_element('input', array('type' => 'hidden',
1932 'name' => 'token-'. $notice->id,
1933 'id' => 'token-'. $notice->id,
1935 'value' => common_session_token()));
1937 common_element('input', array('type' => 'hidden',
1939 'id' => 'notice-n'. $notice->id,
1940 'class' => 'notice',
1941 'value' => $notice->id));
1943 common_element('input', array('type' => 'submit',
1944 'id' => 'favor-submit-' . $notice->id,
1945 'name' => 'favor-submit-' . $notice->id,
1947 'value' => 'Add to favorites',
1948 'title' => 'Add this message to favorites'));
1949 common_element_end('form');
1952 function common_nudge_form($profile) {
1953 common_element_start('form', array('id' => 'nudge', 'method' => 'post',
1954 'action' => common_local_url('nudge', array('nickname' => $profile->nickname))));
1955 common_hidden('token', common_session_token());
1956 common_element('input', array('type' => 'submit',
1957 'class' => 'submit',
1958 'value' => _('Send a nudge')));
1959 common_element_end('form');
1961 function common_nudge_response() {
1962 common_element('p', array('id' => 'nudge_response'), _('Nudge sent!'));
1965 function common_subscribe_form($profile) {
1966 common_element_start('form', array('id' => 'subscribe-' . $profile->nickname,
1968 'class' => 'subscribe',
1969 'action' => common_local_url('subscribe')));
1970 common_hidden('token', common_session_token());
1971 common_element('input', array('id' => 'subscribeto-' . $profile->nickname,
1972 'name' => 'subscribeto',
1974 'value' => $profile->nickname));
1975 common_element('input', array('type' => 'submit',
1976 'class' => 'submit',
1977 'value' => _('Subscribe')));
1978 common_element_end('form');
1981 function common_unsubscribe_form($profile) {
1982 common_element_start('form', array('id' => 'unsubscribe-' . $profile->nickname,
1984 'class' => 'unsubscribe',
1985 'action' => common_local_url('unsubscribe')));
1986 common_hidden('token', common_session_token());
1987 common_element('input', array('id' => 'unsubscribeto-' . $profile->nickname,
1988 'name' => 'unsubscribeto',
1990 'value' => $profile->nickname));
1991 common_element('input', array('type' => 'submit',
1992 'class' => 'submit',
1993 'value' => _('Unsubscribe')));
1994 common_element_end('form');
1997 // XXX: Refactor this code
1998 function common_profile_new_message_nudge ($cur, $profile) {
1999 $user = User::staticGet('id', $profile->id);
2001 if ($cur && $cur->id != $user->id && $cur->mutuallySubscribed($user)) {
2002 common_element_start('li', array('id' => 'profile_send_a_new_message'));
2003 common_element('a', array('href' => common_local_url('newmessage', array('to' => $user->id))),
2004 _('Send a message'));
2005 common_element_end('li');
2007 if ($user->email && $user->emailnotifynudge) {
2008 common_element_start('li', array('id' => 'profile_nudge'));
2009 common_nudge_form($user);
2010 common_element_end('li');
2015 function common_cache_key($extra) {
2016 return 'laconica:' . common_keyize(common_config('site', 'name')) . ':' . $extra;
2019 function common_keyize($str) {
2020 $str = strtolower($str);
2021 $str = preg_replace('/\s/', '_', $str);
2025 function common_message_form($content, $user, $to) {
2027 common_element_start('form', array('id' => 'message_form',
2029 'action' => common_local_url('newmessage')));
2031 $mutual_users = $user->mutuallySubscribedUsers();
2035 while ($mutual_users->fetch()) {
2036 if ($mutual_users->id != $user->id) {
2037 $mutual[$mutual_users->id] = $mutual_users->nickname;
2041 $mutual_users->free();
2042 unset($mutual_users);
2044 common_dropdown('to', _('To'), $mutual, NULL, FALSE, $to->id);
2046 common_element_start('p');
2048 common_element('textarea', array('id' => 'message_content',
2051 'name' => 'content'),
2052 ($content) ? $content : '');
2054 common_element('input', array('id' => 'message_send',
2055 'name' => 'message_send',
2057 'value' => _('Send')));
2059 common_hidden('token', common_session_token());
2061 common_element_end('p');
2062 common_element_end('form');
2065 function common_memcache() {
2066 static $cache = NULL;
2067 if (!common_config('memcached', 'enabled')) {
2071 $cache = new Memcache();
2072 $servers = common_config('memcached', 'server');
2073 if (is_array($servers)) {
2074 foreach($servers as $server) {
2075 $cache->addServer($server);
2078 $cache->addServer($servers);