]> git.mxchange.org Git - quix0rs-gnu-social.git/blobdiff - lib/util.php
Only log locale sets that fail
[quix0rs-gnu-social.git] / lib / util.php
index ca8b539569fc012896fe08ddcb115a98724140b2..5c5c7179ce3bfeca18a072c9b17709024f34f103 100644 (file)
@@ -108,7 +108,7 @@ function common_element_end($tag) {
 function common_element($tag, $attrs=NULL, $content=NULL) {
        common_element_start($tag, $attrs);
        global $xw;
-       if ($content) {
+       if (!is_null($content)) {
                $xw->text($content);
        }
        common_element_end($tag);
@@ -131,47 +131,46 @@ function common_end_xml() {
        $xw->flush();
 }
 
+function common_init_language() {
+       mb_internal_encoding('UTF-8');
+       $language = common_language();
+       # So we don't have to make people install the gettext locales
+       putenv('LANGUAGE='.$language);
+       putenv('LANG='.$language);
+       $locale_set = setlocale(LC_ALL, $language . ".utf8",
+                                                       $language . ".UTF8",
+                                                       $language . ".utf-8",
+                                                       $language . ".UTF-8",
+                                                       $language);
+       bindtextdomain("laconica", common_config('site','locale_path'));
+       bind_textdomain_codeset("laconica", "UTF-8");
+       textdomain("laconica");
+       setlocale(LC_CTYPE, 'C');
+       if(!$local_set) {
+               common_log(LOG_INFO,'Language requested:'.$language.' - locale could not be set:',__FILE__);
+       }
+}
+
 define('PAGE_TYPE_PREFS', 'text/html,application/xhtml+xml,application/xml;q=0.3,text/xml;q=0.2');
 
 function common_show_header($pagetitle, $callable=NULL, $data=NULL, $headercall=NULL) {
+       
        global $config, $xw;
 
-       $httpaccept = isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : NULL;
-
-       # XXX: allow content negotiation for RDF, RSS, or XRDS
-
-       $type = common_negotiate_type(common_accept_to_prefs($httpaccept),
-                                                                 common_accept_to_prefs(PAGE_TYPE_PREFS));
-
-       if (!$type) {
-               common_user_error(_('This page is not available in a media type you accept'), 406);
-               exit(0);
-       }
-
-       header('Content-Type: '.$type);
-
-       common_start_xml('html',
-                                        '-//W3C//DTD XHTML 1.0 Strict//EN',
-                                        'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
-
-       # FIXME: correct language for interface
-
-       common_element_start('html', array('xmlns' => 'http://www.w3.org/1999/xhtml',
-                                                                          'xml:lang' => 'en',
-                                                                          'lang' => 'en'));
-
+       common_start_html();
+       
        common_element_start('head');
        common_element('title', NULL,
                                   $pagetitle . " - " . $config['site']['name']);
        common_element('link', array('rel' => 'stylesheet',
                                                                 'type' => 'text/css',
-                                                                'href' => theme_path('display.css'),
+                                                                'href' => theme_path('display.css') . '?version=' . LACONICA_VERSION,
                                                                 'media' => 'screen, projection, tv'));
        foreach (array(6,7) as $ver) {
                if (file_exists(theme_file('ie'.$ver.'.css'))) {
                        # Yes, IE people should be put in jail.
                        $xw->writeComment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
-                                                         'href="'.theme_path('ie'.$ver.'.css').'" /><![endif]');
+                                                         'href="'.theme_path('ie'.$ver.'.css').'?version='.LACONICA_VERSION.'" /><![endif]');
                }
        }
 
@@ -179,8 +178,18 @@ function common_show_header($pagetitle, $callable=NULL, $data=NULL, $headercall=
                                                                   'src' => common_path('js/jquery.min.js')),
                                   ' ');
        common_element('script', array('type' => 'text/javascript',
-                                                                  'src' => common_path('js/util.js')),
+                                                                  'src' => common_path('js/jquery.form.js')),
                                   ' ');
+       common_element('script', array('type' => 'text/javascript',
+                                                                  'src' => common_path('js/util.js?version='.LACONICA_VERSION)),
+                                  ' ');
+       common_element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
+                                        'href' =>  common_local_url('opensearch', array('type' => 'people')),
+                                        'title' => common_config('site', 'name').' People Search'));
+
+       common_element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
+                                        'href' =>  common_local_url('opensearch', array('type' => 'notice')),
+                                        'title' => common_config('site', 'name').' Notice Search'));
 
        if ($callable) {
                if ($data) {
@@ -223,12 +232,35 @@ function common_show_header($pagetitle, $callable=NULL, $data=NULL, $headercall=
        common_element_start('div', array('id' => 'content'));
 }
 
-# XXX: Refactor w/common_user_error() ?
-function common_show_basic_auth_error() {
-       header('HTTP/1.1 401 Unauthorized');
-       header('Content-type: text/plain');
-       print("Could not authenticate you."); # exactly what Twitter says - no \n
-       exit();
+function common_start_html($type=NULL) {
+       
+       if (!$type) {
+               $httpaccept = isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : NULL;
+               
+               # XXX: allow content negotiation for RDF, RSS, or XRDS
+               
+               $type = common_negotiate_type(common_accept_to_prefs($httpaccept),
+                                                                         common_accept_to_prefs(PAGE_TYPE_PREFS));
+               
+               if (!$type) {
+                       common_user_error(_('This page is not available in a media type you accept'), 406);
+                       exit(0);
+               }
+       }
+       
+       header('Content-Type: '.$type);
+
+       common_start_xml('html',
+                                        '-//W3C//DTD XHTML 1.0 Strict//EN',
+                                        'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
+
+       # FIXME: correct language for interface
+
+       $language = common_language();
+
+       common_element_start('html', array('xmlns' => 'http://www.w3.org/1999/xhtml',
+                                                                          'xml:lang' => $language,
+                                                                          'lang' => $language));
 }
 
 function common_show_footer() {
@@ -253,7 +285,7 @@ function common_show_footer() {
        common_text(_('Unless otherwise specified, contents of this site are copyright by the contributors and available under the '));
        common_element('a', array('class' => 'license',
                                                          'rel' => 'license',
-                                                         href => $config['license']['url']),
+                                                         'href' => $config['license']['url']),
                                   $config['license']['title']);
        common_text(_('. Contributors should be attributed by full name or nickname.'));
        common_element_end('p');
@@ -281,18 +313,20 @@ function common_nav_menu() {
                common_menu_item(common_local_url('all', array('nickname' => $user->nickname)),
                                                 _('Home'));
        }
-       common_menu_item(common_local_url('public'), _('Public'));
        common_menu_item(common_local_url('peoplesearch'), _('Search'));
-       common_menu_item(common_local_url('doc', array('title' => 'help')),
-                                        _('Help'));
+       common_menu_item(common_local_url('tags'), _('Tags'));
        if ($user) {
                common_menu_item(common_local_url('profilesettings'),
                                                 _('Settings'));
+               common_menu_item(common_local_url('invite'),
+                                                _('Invite'));
                common_menu_item(common_local_url('logout'),
                                                 _('Logout'));
        } else {
                common_menu_item(common_local_url('login'), _('Login'));
-               common_menu_item(common_local_url('register'), _('Register'));
+               if (!common_config('site', 'closed')) {
+                       common_menu_item(common_local_url('register'), _('Register'));
+               }
                common_menu_item(common_local_url('openidlogin'), _('OpenID'));
        }
        common_element_end('ul');
@@ -300,6 +334,8 @@ function common_nav_menu() {
 
 function common_foot_menu() {
        common_element_start('ul', array('id' => 'nav_sub'));
+       common_menu_item(common_local_url('doc', array('title' => 'help')),
+                                        _('Help'));
        common_menu_item(common_local_url('doc', array('title' => 'about')),
                                         _('About'));
        common_menu_item(common_local_url('doc', array('title' => 'faq')),
@@ -344,7 +380,7 @@ function common_input($id, $label, $value=NULL,$instructions=NULL) {
        common_element_end('p');
 }
 
-function common_checkbox($id, $label, $checked=false, $instructions=NULL, $value='true')
+function common_checkbox($id, $label, $checked=false, $instructions=NULL, $value='true', $disabled=false)
 {
        common_element_start('p');
        $attrs = array('name' => $id,
@@ -357,6 +393,9 @@ function common_checkbox($id, $label, $checked=false, $instructions=NULL, $value
        if ($checked) {
                $attrs['checked'] = 'checked';
        }
+       if ($disabled) {
+               $attrs['disabled'] = 'true';
+       }
        common_element('input', $attrs);
        # XXX: use a <label>
        common_text(' ');
@@ -368,6 +407,26 @@ function common_checkbox($id, $label, $checked=false, $instructions=NULL, $value
        common_element_end('p');
 }
 
+function common_dropdown($id, $label, $content, $instructions=NULL, $blank_select=FALSE, $selected=NULL) {
+       common_element_start('p');
+       common_element('label', array('for' => $id), $label);
+       common_element_start('select', array('id' => $id, 'name' => $id));
+       if ($blank_select) {
+               common_element('option', array('value' => ''));
+       }
+       foreach ($content as $value => $option) {
+               if ($value == $selected) {
+                       common_element('option', array('value' => $value, 'selected' => $value), $option);
+               } else {
+                       common_element('option', array('value' => $value), $option);
+               }
+       }
+       common_element_end('select');
+       if ($instructions) {
+               common_element('span', 'input_instructions', $instructions);
+       }
+       common_element_end('p');
+}
 function common_hidden($id, $value) {
        common_element('input', array('name' => $id,
                                                                  'type' => 'hidden',
@@ -389,13 +448,13 @@ function common_password($id, $label, $instructions=NULL) {
        common_element_end('p');
 }
 
-function common_submit($id, $label) {
+function common_submit($id, $label, $cls='submit') {
        global $xw;
        common_element_start('p');
        common_element('input', array('type' => 'submit',
                                                                  'id' => $id,
                                                                  'name' => $id,
-                                                                 'class' => 'submit',
+                                                                 'class' => $cls,
                                                                  'value' => $label));
        common_element_end('p');
 }
@@ -414,6 +473,41 @@ function common_textarea($id, $label, $content=NULL, $instructions=NULL) {
        common_element_end('p');
 }
 
+function common_timezone() {
+       if (common_logged_in()) {
+               $user = common_current_user();
+               if ($user->timezone) {
+                       return $user->timezone;
+               }
+       }
+
+       global $config;
+       return $config['site']['timezone'];
+}
+
+function common_language() {
+
+       // If there is a user logged in and they've set a language preference
+       // then return that one...
+        if (common_logged_in()) {
+                $user = common_current_user();
+                $user_language = $user->language;
+               if ($user_language)
+                       return $user_language;
+        }
+
+       // Otherwise, find the best match for the languages requested by the
+       // user's browser...
+       $httplang = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : NULL;
+       if (!empty($httplang)) {
+               $language = client_prefered_language($httplang);
+               if ($language)
+                       return $language;
+       }
+
+       // Finally, if none of the above worked, use the site's default...
+       return common_config('site', 'language');
+}
 # salted, hashed passwords are stored in the DB
 
 function common_munge_password($password, $id) {
@@ -422,6 +516,10 @@ function common_munge_password($password, $id) {
 
 # check if a username exists and has matching password
 function common_check_user($nickname, $password) {
+       # NEVER allow blank passwords, even if they match the DB
+       if (mb_strlen($password) == 0) {
+               return false;
+       }
        $user = User::staticGet('nickname', $nickname);
        if (is_null($user)) {
                return false;
@@ -520,7 +618,7 @@ function common_rememberme($user=NULL) {
 function common_remembered_user() {
        $user = NULL;
        # Try to remember
-       $packed = $_COOKIE[REMEMBERME];
+       $packed = isset($_COOKIE[REMEMBERME]) ? $_COOKIE[REMEMBERME] : '';
        if ($packed) {
                list($id, $code) = explode(':', $packed);
                if ($id && $code) {
@@ -556,9 +654,9 @@ function common_forgetme() {
 
 # who is the current user?
 function common_current_user() {
-       if ($_REQUEST[session_name()] || $_SESSION && $_SESSION['userid']) {
+       if (isset($_REQUEST[session_name()]) || (isset($_SESSION['userid']) && $_SESSION['userid'])) {
                common_ensure_session();
-               $id = $_SESSION['userid'];
+               $id = isset($_SESSION['userid']) ? $_SESSION['userid'] : false;
                if ($id) {
                        # note: this should cache
                        $user = User::staticGet($id);
@@ -567,8 +665,8 @@ function common_current_user() {
        }
        # that didn't work; try to remember
        $user = common_remembered_user();
-       common_debug("Got User " . $user->nickname);
        if ($user) {
+               common_debug("Got User " . $user->nickname);
            common_debug("Faking session on remembered user");
            $_SESSION['userid'] = $user->id;
        }
@@ -604,19 +702,71 @@ function common_canonical_email($email) {
 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$_+!*();/?:~-]))');
 
 function common_render_content($text, $notice) {
-       $r = htmlspecialchars($text);
+       $r = common_render_text($text);
        $id = $notice->profile_id;
-       $r = preg_replace('@https?://[^)\]>\s]+@', '<a href="\0" class="extlink">\0</a>', $r);
-       $r = preg_replace('/(^|\s+)@([a-z0-9]{1,64})/e', "'\\1@'.common_at_link($id, '\\2')", $r);
+       $r = preg_replace('/(^|\s+)@([A-Za-z0-9]{1,64})/e', "'\\1@'.common_at_link($id, '\\2')", $r);
        $r = preg_replace('/^T ([A-Z0-9]{1,64}) /e', "'T '.common_at_link($id, '\\1').' '", $r);
-       # XXX: # tags
+       return $r;
+}
+
+function common_render_text($text) {
+       $r = htmlspecialchars($text);
+
+       $r = preg_replace('/[\x{0}-\x{8}\x{b}-\x{c}\x{e}-\x{19}]/', '', $r);
+       $r = preg_replace_callback('@https?://[^\]>\s]+@', 'common_render_uri_thingy', $r);
+       $r = preg_replace('/(^|\s+)#([A-Za-z0-9_\-\.]{1,64})/e', "'\\1#'.common_tag_link('\\2')", $r);
        # XXX: machine tags
        return $r;
 }
 
+function common_render_uri_thingy($matches) {
+       $uri = $matches[0];
+       $trailer = '';
+
+       # Some heuristics for extracting URIs from surrounding punctuation
+       # Strip from trailing text...
+       if (preg_match('/^(.*)([,.:"\']+)$/', $uri, $matches)) {
+               $uri = $matches[1];
+               $trailer = $matches[2];
+       }
+
+       $pairs = array(
+               ']' => '[', # technically disallowed in URIs, but used in Java docs
+               ')' => '(', # far too frequent in Wikipedia and MSDN
+       );
+       $final = substr($uri, -1, 1);
+       if (isset($pairs[$final])) {
+               $openers = substr_count($uri, $pairs[$final]);
+               $closers = substr_count($uri, $final);
+               if ($closers > $openers) {
+                       // Assume the paren was opened outside the URI
+                       $uri = substr($uri, 0, -1);
+                       $trailer = $final . $trailer;
+               }
+       }
+       return '<a href="' . $uri . '" class="extlink">' . $uri . '</a>' . $trailer;
+}
+
+function common_xml_safe_str($str) {
+       $xmlStr = htmlentities(iconv('UTF-8', 'UTF-8//IGNORE', $str), ENT_NOQUOTES, 'UTF-8');
+       
+       // Replace control, formatting, and surrogate characters with '*', ala Twitter
+       return preg_replace('/[\p{Cc}\p{Cf}\p{Cs}]/u', '*', $str);
+}
+
+function common_tag_link($tag) {
+       $canonical = common_canonical_tag($tag);
+       $url = common_local_url('tag', array('tag' => $canonical));
+       return '<a href="' . htmlspecialchars($url) . '" rel="tag" class="hashlink">' . htmlspecialchars($tag) . '</a>';
+}
+
+function common_canonical_tag($tag) {  
+       return strtolower(str_replace(array('-', '_', '.'), '', $tag));
+}
+
 function common_at_link($sender_id, $nickname) {
        $sender = Profile::staticGet($sender_id);
-       $recipient = common_relative_profile($sender, $nickname);
+       $recipient = common_relative_profile($sender, common_canonical_nickname($nickname));
        if ($recipient) {
                return '<a href="'.htmlspecialchars($recipient->profileurl).'" class="atlink">'.$nickname.'</a>';
        } else {
@@ -628,7 +778,7 @@ function common_relative_profile($sender, $nickname, $dt=NULL) {
        # Try to find profiles this profile is subscribed to that have this nickname
        $recipient = new Profile();
        # XXX: use a join instead of a subquery
-       $recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.$sender_id.' and subscribed = id)', 'AND');
+       $recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.$sender->id.' and subscribed = id)', 'AND');
        $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
        if ($recipient->find(TRUE)) {
                # XXX: should probably differentiate between profiles with
@@ -638,7 +788,7 @@ function common_relative_profile($sender, $nickname, $dt=NULL) {
        # Try to find profiles that listen to this profile and that have this nickname
        $recipient = new Profile();
        # XXX: use a join instead of a subquery
-       $recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.$sender_id.' and subscriber = id)', 'AND');
+       $recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.$sender->id.' and subscriber = id)', 'AND');
        $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
        if ($recipient->find(TRUE)) {
                # XXX: should probably differentiate between profiles with
@@ -696,19 +846,23 @@ function common_default_avatar($size) {
        return theme_path('default-avatar-'.$sizenames[$size].'.png');
 }
 
-function common_local_url($action, $args=NULL) {
-       global $config;
-       if ($config['site']['fancy']) {
-               return common_fancy_url($action, $args);
+function common_local_url($action, $args=NULL, $fragment=NULL) {
+       $url = NULL;
+       if (common_config('site','fancy')) {
+               $url = common_fancy_url($action, $args);
        } else {
-               return common_simple_url($action, $args);
+               $url = common_simple_url($action, $args);
+       }
+       if (!is_null($fragment)) {
+               $url .= '#'.$fragment;
        }
+       return $url;
 }
 
 function common_fancy_url($action, $args=NULL) {
        switch (strtolower($action)) {
         case 'public':
-               if ($args && $args['page']) {
+               if ($args && isset($args['page'])) {
                        return common_path('?page=' . $args['page']);
                } else {
                        return common_path('');
@@ -717,14 +871,26 @@ function common_fancy_url($action, $args=NULL) {
                return common_path('rss');
         case 'publicxrds':
                return common_path('xrds');
+        case 'opensearch':
+                if ($args && $args['type']) {
+                        return common_path('opensearch/'.$args['type']);
+                } else {
+                        return common_path('opensearch/people');
+                }
         case 'doc':
                return common_path('doc/'.$args['title']);
         case 'login':
         case 'logout':
-        case 'register':
         case 'subscribe':
         case 'unsubscribe':
+        case 'invite':
                return common_path('main/'.$action);
+        case 'register':
+               if ($args && $args['code']) {
+                       return common_path('main/register/'.$args['code']);
+               } else {
+                       return common_path('main/register');
+               }
         case 'remotesubscribe':
                if ($args && $args['nickname']) {
                        return common_path('main/remote?nickname=' . $args['nickname']);
@@ -733,15 +899,16 @@ function common_fancy_url($action, $args=NULL) {
                }
         case 'openidlogin':
                return common_path('main/openid');
-        case 'avatar':
-        case 'password':
-               return common_path('settings/'.$action);
         case 'profilesettings':
                return common_path('settings/profile');
         case 'emailsettings':
                return common_path('settings/email');
         case 'openidsettings':
                return common_path('settings/openid');
+        case 'smssettings':
+               return common_path('settings/sms');
+        case 'twittersettings':
+               return common_path('settings/twitter');
         case 'newnotice':
                if ($args && $args['replyto']) {
                        return common_path('notice/new?replyto='.$args['replyto']);
@@ -750,6 +917,12 @@ function common_fancy_url($action, $args=NULL) {
                }
         case 'shownotice':
                return common_path('notice/'.$args['notice']);
+        case 'deletenotice':
+                if ($args && $args['notice']) {
+                        return common_path('notice/delete/'.$args['notice']);
+                } else {
+                        return common_path('notice/delete');
+                }
         case 'xrds':
         case 'foaf':
                return common_path($args['nickname'].'/'.$action);
@@ -757,6 +930,8 @@ function common_fancy_url($action, $args=NULL) {
         case 'subscribers':
         case 'all':
         case 'replies':
+        case 'inbox':
+        case 'outbox':
                if ($args && isset($args['page'])) {
                        return common_path($args['nickname'].'/'.$action.'?page=' . $args['page']);
                } else {
@@ -769,7 +944,7 @@ function common_fancy_url($action, $args=NULL) {
         case 'userrss':
                return common_path($args['nickname'].'/rss');
         case 'showstream':
-               if ($args && $args['page']) {
+               if ($args && isset($args['page'])) {
                        return common_path($args['nickname'].'?page=' . $args['page']);
                } else {
                        return common_path($args['nickname']);
@@ -794,6 +969,55 @@ function common_fancy_url($action, $args=NULL) {
                return common_path('search/notice/rss' . (($args) ? ('?' . http_build_query($args)) : ''));
         case 'avatarbynickname':
                return common_path($args['nickname'].'/avatar/'.$args['size']);
+        case 'tag':
+           if (isset($args['tag']) && $args['tag']) {
+                       $path = 'tag/' . $args['tag'];
+                       unset($args['tag']);
+               } else {
+                       $path = 'tags';
+               }
+               return common_path($path . (($args) ? ('?' . http_build_query($args)) : ''));
+        case 'tags':
+               return common_path('tags' . (($args) ? ('?' . http_build_query($args)) : ''));
+        case 'favor':
+               return common_path('main/favor');
+        case 'disfavor':
+               return common_path('main/disfavor');
+        case 'showfavorites':
+               if ($args && isset($args['page'])) {
+                       return common_path($args['nickname'].'/favorites?page=' . $args['page']);
+               } else {
+                       return common_path($args['nickname'].'/favorites');
+               }
+        case 'favoritesrss':
+               return common_path($args['nickname'].'/favorites/rss');
+        case 'showmessage':
+               return common_path('message/' . $args['message']);
+        case 'newmessage':
+               return common_path('message/new' . (($args) ? ('?' . http_build_query($args)) : ''));
+        case 'api':
+               # XXX: do fancy URLs for all the API methods
+               switch (strtolower($args['apiaction'])) {
+                case 'statuses':
+                       switch (strtolower($args['method'])) {
+                        case 'user_timeline.rss':
+                               return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
+                        case 'user_timeline.atom':                             
+                               return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
+                        case 'user_timeline.rss':
+                               return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
+                        case 'user_timeline.atom':                             
+                               return common_path('api/statuses/user_timeline/'.$args['argument'].'.rss');
+                        default: return common_simple_url($action, $args);
+                       }
+                default: return common_simple_url($action, $args);
+               }
+        case 'sup':
+               if ($args && isset($args['seconds'])) {
+                       return common_path('main/sup?seconds='.$args['seconds']);                       
+               } else {
+                       return common_path('main/sup');
+               }
         default:
                return common_simple_url($action, $args);
        }
@@ -852,23 +1076,43 @@ function common_date_string($dt) {
 }
 
 function common_exact_date($dt) {
-       $t = strtotime($dt);
-       return date(DATE_RFC850, $t);
+    static $_utc;
+    static $_siteTz;
+
+    if (!$_utc) {
+        $_utc = new DateTimeZone('UTC');
+        $_siteTz = new DateTimeZone(common_timezone());
+    }
+
+       $dateStr = date('d F Y H:i:s', strtotime($dt));
+       $d = new DateTime($dateStr, $_utc);
+       $d->setTimezone($_siteTz);
+       return $d->format(DATE_RFC850);
 }
 
 function common_date_w3dtf($dt) {
-       $t = strtotime($dt);
-       return date(DATE_W3C, $t);
+       $dateStr = date('d F Y H:i:s', strtotime($dt));
+       $d = new DateTime($dateStr, new DateTimeZone('UTC'));
+       $d->setTimezone(new DateTimeZone(common_timezone()));
+       return $d->format(DATE_W3C);
 }
 
 function common_date_rfc2822($dt) {
-       $t = strtotime($dt);
-       return date("r", $t);   
+       $dateStr = date('d F Y H:i:s', strtotime($dt));
+       $d = new DateTime($dateStr, new DateTimeZone('UTC'));
+       $d->setTimezone(new DateTimeZone(common_timezone()));
+       return $d->format('r');
 }
 
 function common_date_iso8601($dt) {
-       $t = strtotime($dt);
-       return date("c", $t);   
+       $dateStr = date('d F Y H:i:s', strtotime($dt));
+       $d = new DateTime($dateStr, new DateTimeZone('UTC'));
+       $d->setTimezone(new DateTimeZone(common_timezone()));
+       return $d->format('c');
+}
+
+function common_sql_now() {
+       return strftime('%Y-%m-%d %H:%M:%S', time());
 }
 
 function common_redirect($url, $code=307) {
@@ -889,6 +1133,7 @@ function common_redirect($url, $code=307) {
 
 function common_save_replies($notice) {
        # Alternative reply format
+       $tname = false;
        if (preg_match('/^T ([A-Z0-9]{1,64}) /', $notice->content, $match)) {
                $tname = $match[1];
        }
@@ -908,12 +1153,14 @@ function common_save_replies($notice) {
                if (!$recipient) {
                        continue;
                }
-               if ($i == 0 && ($recipient->id != $sender->id)) { # Don't save reply to self
+               if ($i == 0 && ($recipient->id != $sender->id) && !$notice->reply_to) { # Don't save reply to self
                        $reply_for = $recipient;
                        $recipient_notice = $reply_for->getCurrentNotice();
-                       $orig = clone($notice);
-                       $notice->reply_to = $recipient_notice->id;
-                       $notice->update($orig);
+                       if ($recipient_notice) {
+                               $orig = clone($notice);
+                               $notice->reply_to = $recipient_notice->id;
+                               $notice->update($orig);
+                       }
                }
                $reply = new Reply();
                $reply->notice_id = $notice->id;
@@ -929,6 +1176,24 @@ function common_save_replies($notice) {
 }
 
 function common_broadcast_notice($notice, $remote=false) {
+
+       // Check to see if notice should go to Twitter
+       $flink = Foreign_link::getForeignLink($notice->profile_id, 1); // 1 == Twitter
+       if (($flink->noticesync & FOREIGN_NOTICE_SEND) == FOREIGN_NOTICE_SEND) {
+
+               // If it's not a Twitter-style reply, or if the user WANTS to send replies...
+
+               if (!preg_match('/^@[a-zA-Z0-9_]{1,15}\b/u', $notice->content) ||
+                       (($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY) == FOREIGN_NOTICE_SEND_REPLY)) {
+
+                       $result = common_twitter_broadcast($notice, $flink);
+
+                       if (!$result) {
+                               common_debug('Unable to send notice: ' . $notice->id . ' to Twitter.', __FILE__);
+                       }
+               }
+       }
+
        if (common_config('queue', 'enabled')) {
                # Do it later!
                return common_enqueue_notice($notice);
@@ -937,22 +1202,99 @@ function common_broadcast_notice($notice, $remote=false) {
        }
 }
 
+function common_twitter_broadcast($notice, $flink) {
+       global $config;
+       $success = true;
+       $fuser = $flink->getForeignUser();
+       $twitter_user = $fuser->nickname;
+       $twitter_password = $flink->credentials;
+       $uri = 'http://www.twitter.com/statuses/update.json';
+
+       // XXX: Hack to get around PHP cURL's use of @ being a a meta character
+       $statustxt = preg_replace('/^@/', ' @', $notice->content);
+
+       $options = array(
+               CURLOPT_USERPWD                 => "$twitter_user:$twitter_password",
+               CURLOPT_POST                    => true,
+               CURLOPT_POSTFIELDS              => array(
+                                                                       'status'        => $statustxt,
+                                                                       'source'        => $config['integration']['source']
+                                                                       ),
+               CURLOPT_RETURNTRANSFER  => true,
+               CURLOPT_FAILONERROR             => true,
+               CURLOPT_HEADER                  => false,
+               CURLOPT_FOLLOWLOCATION  => true,
+               CURLOPT_USERAGENT               => "Laconica",
+               CURLOPT_CONNECTTIMEOUT  => 120,  // XXX: Scary!!!! How long should this be?
+               CURLOPT_TIMEOUT                 => 120
+       );
+
+       $ch = curl_init($uri);
+    curl_setopt_array($ch, $options);
+    $data = curl_exec($ch);
+    $errmsg = curl_error($ch);
+
+       if ($errmsg) {
+               common_debug("cURL error: $errmsg - trying to send notice for $twitter_user.",
+                       __FILE__);
+               $success = false;
+       }
+
+       curl_close($ch);
+
+       if (!$data) {
+               common_debug("No data returned by Twitter's API trying to send update for $twitter_user",
+                       __FILE__);
+               $success = false;
+       }
+
+       // Twitter should return a status
+       $status = json_decode($data);
+
+       if (!$status->id) {
+               common_debug("Unexpected data returned by Twitter API trying to send update for $twitter_user",
+                       __FILE__);
+               $success = false;
+       }
+
+       return $success;
+}
+
 # Stick the notice on the queue
 
 function common_enqueue_notice($notice) {
-       $qi = new Queue_item();
-       $qi->notice_id = $notice->id;
-       $qi->created = $notice->created;
+       foreach (array('jabber', 'omb', 'sms', 'public') as $transport) {
+               $qi = new Queue_item();
+               $qi->notice_id = $notice->id;
+               $qi->transport = $transport;
+               $qi->created = $notice->created;
         $result = $qi->insert();
-       if (!$result) {
-           $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
-           common_log(LOG_ERR, 'DB error inserting queue item: ' . $last_error->message);
-           return false;
+               if (!$result) {
+                       $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
+                       common_log(LOG_ERR, 'DB error inserting queue item: ' . $last_error->message);
+                       return false;
+               }
+               common_log(LOG_DEBUG, 'complete queueing notice ID = ' . $notice->id . ' for ' . $transport);
        }
-       common_log(LOG_DEBUG, 'complete queueing notice ID = ' . $notice->id);
        return $result;
 }
 
+function common_dequeue_notice($notice) {
+        $qi = Queue_item::staticGet($notice->id);
+        if ($qi) {
+                $result = $qi->delete();
+               if (!$result) {
+                   $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
+                    common_log(LOG_ERR, 'DB error deleting queue item: ' . $last_error->message);
+                    return false;
+                }
+                common_log(LOG_DEBUG, 'complete dequeueing notice ID = ' . $notice->id);
+                return $result;
+        } else {
+            return false;
+        }
+}
+
 function common_real_broadcast($notice, $remote=false) {
        $success = true;
        if (!$remote) {
@@ -970,7 +1312,19 @@ function common_real_broadcast($notice, $remote=false) {
                        common_log(LOG_ERR, 'Error in jabber broadcast for notice ' . $notice->id);
                }
        }
-       // XXX: broadcast notices to SMS
+       if ($success) {
+               require_once(INSTALLDIR.'/lib/mail.php');
+               $success = mail_broadcast_notice_sms($notice);
+               if (!$success) {
+                       common_log(LOG_ERR, 'Error in sms broadcast for notice ' . $notice->id);
+               }
+       }
+       if ($success) {
+               $success = jabber_public_notice($notice);
+               if (!$success) {
+                       common_log(LOG_ERR, 'Error in public broadcast for notice ' . $notice->id);
+               }
+       }
        // XXX: broadcast notices to other IM
        return $success;
 }
@@ -1008,6 +1362,8 @@ function common_notice_form($action=NULL, $content=NULL) {
        if ($action) {
                common_hidden('returnto', $action);
        }
+       # set by JavaScript
+       common_hidden('inreplyto', 'false');
        common_element('input', array('id' => 'status_submit',
                                                                  'name' => 'status_submit',
                                                                  'type' => 'submit',
@@ -1247,7 +1603,7 @@ function common_negotiate_type($cprefs, $sprefs) {
 
 function common_config($main, $sub) {
        global $config;
-       return $config[$main][$sub];
+       return isset($config[$main][$sub]) ? $config[$main][$sub] : false;
 }
 
 function common_copy_args($from) {
@@ -1259,6 +1615,15 @@ function common_copy_args($from) {
        return $to;
 }
 
+// Neutralise the evil effects of magic_quotes_gpc in the current request.
+// This is used before handing a request off to OAuthRequest::from_request.
+function common_remove_magic_from_request() {
+       if(get_magic_quotes_gpc()) {
+               $_POST=array_map('stripslashes',$_POST);
+               $_GET=array_map('stripslashes',$_GET);
+       }
+}
+
 function common_user_uri(&$user) {
        return common_local_url('userbyid', array('id' => $user->id));
 }
@@ -1311,11 +1676,146 @@ function common_profile_uri($profile) {
        if ($user) {
                return $user->uri;
        }
-       
+
        $remote = Remote_profile::staticGet($profile->id);
        if ($remote) {
                return $remote->uri;
        }
        # XXX: this is a very bad profile!
        return NULL;
-}
\ No newline at end of file
+}
+
+function common_canonical_sms($sms) {
+       # strip non-digits
+       preg_replace('/\D/', '', $sms);
+       return $sms;
+}
+
+function common_error_handler($errno, $errstr, $errfile, $errline, $errcontext) {
+    switch ($errno) {
+     case E_USER_ERROR:
+               common_log(LOG_ERR, "[$errno] $errstr ($errfile:$errline)");
+               exit(1);
+               break;
+
+        case E_USER_WARNING:
+               common_log(LOG_WARNING, "[$errno] $errstr ($errfile:$errline)");
+               break;
+
+     case E_USER_NOTICE:
+               common_log(LOG_NOTICE, "[$errno] $errstr ($errfile:$errline)");
+               break;
+    }
+
+       # FIXME: show error page if we're on the Web
+    /* Don't execute PHP internal error handler */
+    return true;
+}
+
+function common_session_token() {
+       common_ensure_session();
+       if (!array_key_exists('token', $_SESSION)) {
+               $_SESSION['token'] = common_good_rand(64);
+       }
+       return $_SESSION['token'];
+}
+
+function common_disfavor_form($notice) {
+       common_element_start('form', array('id' => 'disfavor-' . $notice->id,
+                                                                          'method' => 'post',
+                                                                          'class' => 'disfavor',
+                                                                          'action' => common_local_url('disfavor')));
+       common_hidden('token', common_session_token());
+       common_hidden('notice', $notice->id);
+       common_element('input', array('type' => 'submit',
+                                                                 'id' => 'disfavor-submit-' . $notice->id,
+                                                                 'name' => 'disfavor-submit-' . $notice->id,
+                                                                 'class' => 'disfavor',
+                                                                 'value' => '♥'));
+       common_element_end('form');
+}
+
+function common_favor_form($notice) {
+       common_element_start('form', array('id' => 'favor-' . $notice->id,
+                                                                          'method' => 'post',
+                                                                          'class' => 'favor',
+                                                                          'action' => common_local_url('favor')));
+       common_hidden('token', common_session_token());
+       common_hidden('notice', $notice->id);
+       common_element('input', array('type' => 'submit',
+                                                                 'id' => 'favor-submit-' . $notice->id,
+                                                                 'name' => 'favor-submit-' . $notice->id,
+                                                                 'class' => 'favor',
+                                                                 'value' => '♡'));
+       common_element_end('form');
+}
+
+function common_cache_key($extra) {
+       return 'laconica:' . common_keyize(common_config('site', 'name')) . ':' . $extra;
+}
+
+function common_keyize($str) {
+       $str = strtolower($str);
+       $str = preg_replace('/\s/', '_', $str);
+       return $str;
+}
+
+function common_message_form($content, $user, $to) {
+       
+       common_element_start('form', array('id' => 'message_form',
+                                                                          'method' => 'post',
+                                                                          'action' => common_local_url('newmessage')));
+       
+       $mutual_users = $user->mutuallySubscribedUsers();
+       
+       $mutual = array();
+       
+       while ($mutual_users->fetch()) {
+               if ($mutual_users->id != $user->id) {
+                       $mutual[$mutual_users->id] = $mutual_users->nickname;
+               }
+       }
+       
+       $mutual_users->free();
+       unset($mutual_users);
+       
+       common_dropdown('to', _('To'), $mutual, NULL, FALSE, $to->id);
+       
+       common_element_start('p');
+       
+       common_element('textarea', array('id' => 'message_content',
+                                                                        'cols' => 60,
+                                                                        'rows' => 3,
+                                                                        'name' => 'content'),
+                                  ($content) ? $content : '');
+       
+       common_element('input', array('id' => 'message_send',
+                                                                 'name' => 'message_send',
+                                                                 'type' => 'submit',
+                                                                 'value' => _('Send')));
+       
+       common_hidden('token', common_session_token());
+       
+       common_element_end('p');
+       common_element_end('form');
+}
+
+function common_memcache() {
+       static $cache = NULL;
+       if (!common_config('memcached', 'enabled')) {
+               return NULL;
+       } else {
+               if (!$cache) {
+                       $cache = new Memcache();
+                       $servers = common_config('memcached', 'server');
+                       if (is_array($servers)) {
+                               foreach($servers as $server) {
+                                       $cache->addServer($server);
+                               }
+                       } else {
+                               $cache->addServer($servers);
+                       }
+               }
+               return $cache;
+       }
+}