X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=lib%2Futil.php;h=b78edc93cc4ef4158fbc999e8e43a98f881cd9ac;hb=0299b6f2caa5b3b956c9e00a17d6cf3c72966396;hp=ece00281235e395209ac7a94b7d2cf5819bef34b;hpb=63758c59e1df81c955ce8528d80ba3fd0e466bec;p=quix0rs-gnu-social.git
diff --git a/lib/util.php b/lib/util.php
index ece0028123..b78edc93cc 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -21,16 +21,57 @@
# Show a server error
-function common_server_error($msg) {
- header('Status: 500 Server Error');
+function common_server_error($msg, $code=500) {
+ static $status = array(500 => 'Internal Server Error',
+ 501 => 'Not Implemented',
+ 502 => 'Bad Gateway',
+ 503 => 'Service Unavailable',
+ 504 => 'Gateway Timeout',
+ 505 => 'HTTP Version Not Supported');
+
+ if (!array_key_exists($code, $status)) {
+ $code = 500;
+ }
+
+ $status_string = $status[$code];
+
+ header('HTTP/1.1 '.$code.' '.$status_string);
header('Content-type: text/plain');
print $msg;
+ print "\n";
exit();
}
# Show a user error
-function common_user_error($msg, $code=200) {
+function common_user_error($msg, $code=400) {
+ static $status = array(400 => 'Bad Request',
+ 401 => 'Unauthorized',
+ 402 => 'Payment Required',
+ 403 => 'Forbidden',
+ 404 => 'Not Found',
+ 405 => 'Method Not Allowed',
+ 406 => 'Not Acceptable',
+ 407 => 'Proxy Authentication Required',
+ 408 => 'Request Timeout',
+ 409 => 'Conflict',
+ 410 => 'Gone',
+ 411 => 'Length Required',
+ 412 => 'Precondition Failed',
+ 413 => 'Request Entity Too Large',
+ 414 => 'Request-URI Too Long',
+ 415 => 'Unsupported Media Type',
+ 416 => 'Requested Range Not Satisfiable',
+ 417 => 'Expectation Failed');
+
+ if (!array_key_exists($code, $status)) {
+ $code = 400;
+ }
+
+ $status_string = $status[$code];
+
+ header('HTTP/1.1 '.$code.' '.$status_string);
+
common_show_header('Error');
common_element('div', array('class' => 'error'), $msg);
common_show_footer();
@@ -65,17 +106,45 @@ function common_element($tag, $attrs=NULL, $content=NULL) {
common_element_end($tag);
}
-function common_show_header($pagetitle) {
- global $config, $xw;
-
- header('Content-Type: application/xhtml+xml');
-
+function common_start_xml($doc=NULL, $public=NULL, $system=NULL) {
+ global $xw;
$xw = new XMLWriter();
$xw->openURI('php://output');
$xw->setIndent(true);
$xw->startDocument('1.0', 'UTF-8');
- $xw->writeDTD('html', '-//W3C//DTD XHTML 1.0 Strict//EN',
- 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
+ if ($doc) {
+ $xw->writeDTD($doc, $public, $system);
+ }
+}
+
+function common_end_xml() {
+ global $xw;
+ $xw->endDocument();
+ $xw->flush();
+}
+
+define('PAGE_TYPE_PREFS', 'application/xhtml+xml,text/html;q=0.7,application/xml;q=0.3,text/xml;q=0.2');
+
+function common_show_header($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 (!$type) {
+ common_client_error(_t('This page is not available in a media type you accept'), 406);
+ exit(0);
+ }
+
+ header('Content-Type: '.$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
@@ -88,41 +157,85 @@ function common_show_header($pagetitle) {
$pagetitle . " - " . $config['site']['name']);
common_element('link', array('rel' => 'stylesheet',
'type' => 'text/css',
- 'href' => $config['site']['path'] . 'theme/default/style/html.css',
+ 'href' => theme_path('display.css'),
'media' => 'screen, projection, tv'));
- common_element('link', array('rel' => 'stylesheet',
- 'type' => 'text/css',
- 'href' => $config['site']['path'] . 'theme/default/style/layout.css',
- 'media' => 'screen, projection, tv'));
- common_element('link', array('rel' => 'stylesheet',
- 'type' => 'text/css',
- 'href' => $config['site']['path'] . 'theme/default/style/print.css',
- 'media' => 'print'));
+ 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.']> 'text/javascript',
+ 'src' => common_path('js/jquery.min.js')),
+ ' ');
+
+ if ($callable) {
+ if ($data) {
+ call_user_func($callable, $data);
+ } else {
+ call_user_func($callable);
+ }
+ }
common_element_end('head');
common_element_start('body');
- common_element_start('div', array('id' => 'wrapper'));
- common_element_start('div', array('id' => 'content'));
+ common_element_start('div', array('id' => 'wrap'));
common_element_start('div', array('id' => 'header'));
- common_element('h1', 'title', $pagetitle);
- common_element('h2', 'subtitle', $config['site']['name']);
+ common_nav_menu();
+ if ($config['site']['logo'] || file_exists(theme_file('logo.png'))) {
+ common_element_start('a', array('href' => common_local_url('public')));
+ common_element('img', array('src' => ($config['site']['logo']) ?
+ ($config['site']['logo']) : theme_path('logo.png'),
+ 'alt' => $config['site']['name'],
+ 'id' => 'logo'));
+ common_element_end('a');
+ }
+ common_element('h1', 'pagetitle', $pagetitle);
+ common_element('h2', 'sitename', $config['site']['name']);
+
+ if ($headercall) {
+ if ($data) {
+ call_user_func($headercall, $data);
+ } else {
+ call_user_func($headercall);
+ }
+ }
common_element_end('div');
- common_head_menu();
- common_element_start('div', array('id' => 'page'));
+ common_element_start('div', array('id' => 'content'));
}
function common_show_footer() {
global $xw, $config;
- common_element_start('p', 'footer');
+ common_element_end('div'); # content div
common_foot_menu();
- common_license_block();
+ common_element_start('div', array('id' => 'footer'));
+ common_element_start('p', 'laconica');
+ common_text(_t('This site is running the '));
+ common_element('a', array('class' => 'software',
+ href => 'http://laconi.ca/'),
+ 'Laconica');
+ common_text(_t('microblogging tool, version ' . LACONICA_VERSION . ', available under the '));
+ common_element('a', array(href => 'http://www.fsf.org/licensing/licenses/agpl-3.0.html'),
+ 'GNU Affero General Public License');
+ common_text(_t('.'));
+ common_element_end('p');
+ common_element('img', array('id' => 'cc',
+ 'src' => $config['license']['image'],
+ 'alt' => $config['license']['title']));
+ common_element_start('p');
+ common_text(_t('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']),
+ $config['license']['title']);
+ common_text(_t('. Contributors should be attributed by full name or nickname.'));
common_element_end('p');
- common_element_end('div');
common_element_end('div');
common_element_end('div');
common_element_end('body');
common_element_end('html');
- $xw->endDocument();
- $xw->flush();
+ common_end_xml();
}
function common_text($txt) {
@@ -130,71 +243,59 @@ function common_text($txt) {
$xw->text($txt);
}
-function common_license_block() {
- global $config, $xw;
- common_element_start('div', 'license');
- common_element_start('a', array('class' => 'license',
- 'rel' => 'license',
- href => $config['license']['url']));
- common_element('img', array('class' => 'license',
- 'src' => $config['license']['image'],
- 'alt' => $config['license']['title']));
- common_element_end('a');
- common_text(_t('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']),
- $config['license']['title']);
- common_text(_t('. Contributors should be attributed by full name or nickname.'));
- common_element_end('div');
+function common_raw($xml) {
+ global $xw;
+ $xw->writeRaw($xml);
}
-function common_head_menu() {
+function common_nav_menu() {
$user = common_current_user();
- common_element_start('ul', array('id' => 'menu', 'class' => ($user) ? 'five' : 'three'));
+ common_element_start('ul', array('id' => 'nav'));
+ if ($user) {
+ common_menu_item(common_local_url('all', array('nickname' => $user->nickname)),
+ _t('Home'));
+ }
+ common_menu_item(common_local_url('public'), _t('Public'));
common_menu_item(common_local_url('doc', array('title' => 'help')),
_t('Help'));
if ($user) {
- common_menu_item(common_local_url('all', array('nickname' =>
- $user->nickname)),
- _t('Home'));
- common_menu_item(common_local_url('showstream', array('nickname' =>
- $user->nickname)),
- _t('Profile'), $user->fullname || $user->nickname);
common_menu_item(common_local_url('profilesettings'),
_t('Settings'));
common_menu_item(common_local_url('logout'),
_t('Logout'));
} else {
- common_menu_item(common_local_url('login'),
- _t('Login'));
- common_menu_item(common_local_url('register'),
- _t('Register'));
+ common_menu_item(common_local_url('login'), _t('Login'));
+ common_menu_item(common_local_url('register'), _t('Register'));
}
common_element_end('ul');
}
function common_foot_menu() {
- common_element_start('ul', 'footmenu');
+ common_element_start('ul', array('id' => 'nav_sub'));
common_menu_item(common_local_url('doc', array('title' => 'about')),
_t('About'));
- common_menu_item(common_local_url('doc', array('title' => 'help')),
- _t('Help'));
common_menu_item(common_local_url('doc', array('title' => 'privacy')),
_t('Privacy'));
+ common_menu_item(common_local_url('doc', array('title' => 'source')),
+ _t('Source'));
+ common_element_end('ul');
}
-function common_menu_item($url, $text, $title=NULL) {
+function common_menu_item($url, $text, $title=NULL, $is_selected=false) {
+ $lattrs = array();
+ if ($is_selected) {
+ $lattrs['class'] = 'current';
+ }
+ common_element_start('li', $lattrs);
$attrs['href'] = $url;
if ($title) {
$attrs['title'] = $title;
}
- common_element_start('li', 'menuitem');
common_element('a', $attrs, $text);
common_element_end('li');
}
-function common_input($id, $label, $value=NULL) {
+function common_input($id, $label, $value=NULL,$instructions=NULL) {
common_element_start('p');
common_element('label', array('for' => $id), $label);
$attrs = array('name' => $id,
@@ -204,30 +305,53 @@ function common_input($id, $label, $value=NULL) {
$attrs['value'] = htmlspecialchars($value);
}
common_element('input', $attrs);
+ if ($instructions) {
+ common_element('span', 'input_instructions', $instructions);
+ }
common_element_end('p');
}
-function common_password($id, $label) {
+function common_hidden($id, $value) {
+ common_element('input', array('name' => $id,
+ 'type' => 'hidden',
+ 'id' => $id,
+ 'value' => $value));
+}
+
+function common_password($id, $label, $instructions=NULL) {
common_element_start('p');
common_element('label', array('for' => $id), $label);
$attrs = array('name' => $id,
'type' => 'password',
'id' => $id);
common_element('input', $attrs);
+ if ($instructions) {
+ common_element('span', 'input_instructions', $instructions);
+ }
common_element_end('p');
}
function common_submit($id, $label) {
global $xw;
common_element_start('p');
- common_element_start('label', array('for' => $id));
- $xw->writeRaw(' ');
- common_element_end('label');
common_element('input', array('type' => 'submit',
'id' => $id,
'name' => $id,
- 'value' => $label,
- 'class' => 'button'));
+ 'value' => $label));
+ common_element_end('p');
+}
+
+function common_textarea($id, $label, $content=NULL, $instructions=NULL) {
+ common_element_start('p');
+ common_element('label', array('for' => $id), $label);
+ common_element('textarea', array('rows' => 3,
+ 'cols' => 40,
+ 'name' => $id,
+ 'id' => $id),
+ ($content) ? $content : ' ');
+ if ($instructions) {
+ common_element('span', 'input_instructions', $instructions);
+ }
common_element_end('p');
}
@@ -296,7 +420,7 @@ function common_current_user() {
# get canonical version of nickname for comparison
function common_canonical_nickname($nickname) {
# XXX: UTF-8 canonicalization (like combining chars)
- return $nickname;
+ return strtolower($nickname);
}
# get canonical version of email for comparison
@@ -306,36 +430,141 @@ function common_canonical_email($email) {
return $email;
}
-function common_render_content($text) {
- # XXX: @ messages
+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);
+ $id = $notice->profile_id;
+ $r = preg_replace('@https?://\S+@', '\0', $r);
+ $r = preg_replace('/(^|\b)@([\w-]+)($|\b)/e', "'\\1@'.common_at_link($id, '\\2').'\\3'", $r);
# XXX: # tags
# XXX: machine tags
- return htmlspecialchars($text);
+ return $r;
+}
+
+function common_at_link($sender_id, $nickname) {
+ # Try to find profiles this profile is subscribed to that have this nickname
+ $recipient = new Profile();
+ # XXX: chokety and bad
+ $recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.$sender_id.' and subscribed = id)', 'AND');
+ $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
+ if ($recipient->find(TRUE)) {
+ return ''.$nickname.'';
+ }
+ # Try to find profiles that listen to this profile and that have this nickname
+ $recipient = new Profile();
+ # XXX: chokety and bad
+ $recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.$sender_id.' and subscriber = id)', 'AND');
+ $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
+ if ($recipient->find(TRUE)) {
+ return ''.$nickname.'';
+ }
+ # If this is a local user, try to find a local user with that nickname.
+ $sender = User::staticGet($sender_id);
+ if ($sender) {
+ $recipient_user = User::staticGet('nickname', $nickname);
+ if ($recipient_user) {
+ $recipient = $recipient->getProfile();
+ return ''.$nickname.'';
+ }
+ }
+ # Otherwise, no links. @messages from local users to remote users,
+ # or from remote users to other remote users, are just
+ # outside our ability to make intelligent guesses about
+ return $nickname;
}
// where should the avatar go for this user?
-function common_avatar_filename($user, $extension, $size=NULL) {
+function common_avatar_filename($id, $extension, $size=NULL, $extra=NULL) {
global $config;
if ($size) {
- return $user->id . '-' . $size . $extension;
+ return $id . '-' . $size . (($extra) ? ('-' . $extra) : '') . $extension;
} else {
- return $user->id . '-original' . $extension;
+ return $id . '-original' . (($extra) ? ('-' . $extra) : '') . $extension;
}
}
function common_avatar_path($filename) {
global $config;
- return $config['avatar']['directory'] . '/' . $filename;
+ return INSTALLDIR . '/avatar/' . $filename;
}
function common_avatar_url($filename) {
- global $config;
- return $config['avatar']['path'] . '/' . $filename;
+ return common_path('avatar/'.$filename);
+}
+
+function common_default_avatar($size) {
+ static $sizenames = array(AVATAR_PROFILE_SIZE => 'profile',
+ AVATAR_STREAM_SIZE => 'stream',
+ AVATAR_MINI_SIZE => 'mini');
+ return theme_path('default-avatar-'.$sizenames[$size].'.png');
}
function common_local_url($action, $args=NULL) {
+ global $config;
+ if ($config['site']['fancy']) {
+ return common_fancy_url($action, $args);
+ } else {
+ return common_simple_url($action, $args);
+ }
+}
+
+function common_fancy_url($action, $args=NULL) {
+ switch (strtolower($action)) {
+ case 'public':
+ if ($args && $args['page']) {
+ return common_path('?page=' . $args['page']);
+ } else {
+ return common_path('');
+ }
+ case 'publicrss':
+ return common_path('rss');
+ case 'doc':
+ return common_path('doc/'.$args['title']);
+ case 'login':
+ case 'logout':
+ case 'register':
+ case 'subscribe':
+ case 'unsubscribe':
+ return common_path('main/'.$action);
+ case 'avatar':
+ case 'password':
+ return common_path('settings/'.$action);
+ case 'profilesettings':
+ return common_path('settings/profile');
+ case 'newnotice':
+ return common_path('notice/new');
+ case 'shownotice':
+ return common_path('notice/'.$args['notice']);
+ case 'xrds':
+ case 'foaf':
+ return common_path($args['nickname'].'/'.$action);
+ case 'subscriptions':
+ case 'subscribed':
+ case 'all':
+ if ($args && $args['page']) {
+ return common_path($args['nickname'].'/'.$action.'?page=' . $args['page']);
+ } else {
+ return common_path($args['nickname'].'/'.$action);
+ }
+ case 'allrss':
+ return common_path($args['nickname'].'/all/rss');
+ case 'userrss':
+ return common_path($args['nickname'].'/rss');
+ case 'showstream':
+ if ($args && $args['page']) {
+ return common_path($args['nickname'].'?page=' . $args['page']);
+ } else {
+ return common_path($args['nickname']);
+ }
+ default:
+ return common_simple_url($action, $args);
+ }
+}
+
+function common_simple_url($action, $args=NULL) {
global $config;
/* XXX: pretty URLs */
$extra = '';
@@ -344,8 +573,13 @@ function common_local_url($action, $args=NULL) {
$extra .= "&${key}=${value}";
}
}
+ return common_path("index.php?action=${action}${extra}");
+}
+
+function common_path($relative) {
+ global $config;
$pathpart = ($config['site']['path']) ? $config['site']['path']."/" : '';
- return "http://".$config['site']['server'].'/'.$pathpart."index.php?action=${action}${extra}";
+ return "http://".$config['site']['server'].'/'.$pathpart.$relative;
}
function common_date_string($dt) {
@@ -354,6 +588,11 @@ function common_date_string($dt) {
return $dt;
}
+function common_date_w3dtf($dt) {
+ $t = strtotime($dt);
+ return date(DATE_W3C, $t);
+}
+
function common_redirect($url, $code=307) {
static $status = array(301 => "Moved Permanently",
302 => "Found",
@@ -364,12 +603,24 @@ function common_redirect($url, $code=307) {
common_element('a', array('href' => $url), $url);
}
-function common_broadcast_notices($id) {
- // XXX: broadcast notices to remote subscribers
- // XXX: broadcast notices to SMS
+function common_broadcast_notice($notice, $remote=false) {
+ // XXX: optionally use a queue system like http://code.google.com/p/microapps/wiki/NQDQ
+ if (!$remote) {
+ # Make sure we have the OMB stuff
+ require_once(INSTALLDIR.'/lib/omb.php');
+ omb_broadcast_remote_subscribers($notice);
+ }
// XXX: broadcast notices to Jabber
+ // XXX: broadcast notices to SMS
// XXX: broadcast notices to other IM
- // XXX: use a queue system like http://code.google.com/p/microapps/wiki/NQDQ
+ return true;
+}
+
+function common_broadcast_profile($profile) {
+ // XXX: optionally use a queue system like http://code.google.com/p/microapps/wiki/NQDQ
+ require_once(INSTALLDIR.'/lib/omb.php');
+ omb_broadcast_profile($profile);
+ // XXX: Other broadcasts...?
return true;
}
@@ -377,22 +628,241 @@ function common_profile_url($nickname) {
return common_local_url('showstream', array('nickname' => $nickname));
}
+# Don't call if nobody's logged in
+
function common_notice_form() {
- common_element_start('form', array('id' => 'newnotice', 'method' => 'POST',
+ $user = common_current_user();
+ assert(!is_null($user));
+ common_element_start('form', array('id' => 'status_form',
+ 'method' => 'POST',
'action' => common_local_url('newnotice')));
common_element_start('p');
- common_element('label', array('for' => 'content'), _t('What\'s up?'));
- common_element('textarea', array('rows' => 3, 'cols' => 40,
- 'name' => 'content',
- 'id' => 'content',
- 'class' => 'width75'),
- ' ');
- common_submit('submit', _t('Send'));
+ common_element('label', array('for' => 'status_update',
+ 'id' => 'status_label'),
+ _t('What\'s up, ').$user->nickname.'?');
+ common_element('textarea', array('id' => 'status_textarea',
+ 'name' => 'status_textarea'));
+ common_element('input', array('id' => 'status_submit',
+ 'name' => 'status_submit',
+ 'type' => 'submit',
+ 'value' => _t('Send')));
+ common_element_end('p');
common_element_end('form');
+}
+
+function common_mint_tag($extra) {
+ global $config;
+ return
+ 'tag:'.$config['tag']['authority'].','.
+ $config['tag']['date'].':'.$config['tag']['prefix'].$extra;
+}
+
+# Should make up a reasonable root URL
+
+function common_root_url() {
+ return common_path('');
+}
+
+# returns $bytes bytes of random data as a hexadecimal string
+# "good" here is a goal and not a guarantee
+
+function common_good_rand($bytes) {
+ # XXX: use random.org...?
+ if (file_exists('/dev/urandom')) {
+ return common_urandom($bytes);
+ } else { # FIXME: this is probably not good enough
+ return common_mtrand($bytes);
}
+}
+
+function common_urandom($bytes) {
+ $h = fopen('/dev/urandom', 'rb');
+ # should not block
+ $src = fread($h, $bytes);
+ fclose($h);
+ $enc = '';
+ for ($i = 0; $i < $bytes; $i++) {
+ $enc .= sprintf("%02x", (ord($src[$i])));
+ }
+ return $enc;
+}
+
+function common_mtrand($bytes) {
+ $enc = '';
+ for ($i = 0; $i < $bytes; $i++) {
+ $enc .= sprintf("%02x", mt_rand(0, 255));
+ }
+ return $enc;
+}
+
+function common_set_returnto($url) {
+ common_ensure_session();
+ $_SESSION['returnto'] = $url;
+}
+
+function common_get_returnto() {
+ common_ensure_session();
+ return $_SESSION['returnto'];
+}
+
+function common_timestamp() {
+ return date('YmdHis');
+}
// XXX: set up gettext
function _t($str) {
return $str;
}
+
+function common_ensure_syslog() {
+ static $initialized = false;
+ if (!$initialized) {
+ global $config;
+ define_syslog_variables();
+ openlog($config['syslog']['appname'], 0, LOG_USER);
+ $initialized = true;
+ }
+}
+
+function common_log($priority, $msg, $filename=NULL) {
+ common_ensure_syslog();
+ syslog($priority, $msg);
+}
+
+function common_debug($msg, $filename=NULL) {
+ if ($filename) {
+ common_log(LOG_DEBUG, basename($filename).' - '.$msg);
+ } else {
+ common_log(LOG_DEBUG, $msg);
+ }
+}
+
+function common_valid_http_url($url) {
+ return Validate::uri($url, array('allowed_schemes' => array('http', 'https')));
+}
+
+function common_valid_tag($tag) {
+ if (preg_match('/^tag:(.*?),(\d{4}(-\d{2}(-\d{2})?)?):(.*)$/', $tag, $matches)) {
+ return (Validate::email($matches[1]) ||
+ preg_match('/^([\w-\.]+)$/', $matches[1]));
+ }
+ return false;
+}
+
+# Does a little before-after block for next/prev page
+
+function common_pagination($have_before, $have_after, $page, $action, $args=NULL) {
+
+ if ($have_before || $have_after) {
+ common_element_start('div', array('id' => 'pagination'));
+ common_element_start('ul', array('id' => 'nav_pagination'));
+ }
+
+ if ($have_before) {
+ $pargs = array('page' => $page-1);
+ $newargs = ($args) ? array_merge($args,$pargs) : $pargs;
+
+ common_element_start('li', 'before');
+ common_element('a', array('href' => common_local_url($action, $newargs)),
+ _t('« After'));
+ common_element_end('li');
+ }
+
+ if ($have_after) {
+ $pargs = array('page' => $page+1);
+ $newargs = ($args) ? array_merge($args,$pargs) : $pargs;
+ common_element_start('li', 'after');
+ common_element('a', array('href' => common_local_url($action, $newargs)),
+ _t('Before »'));
+ common_element_end('li');
+ }
+
+ if ($have_before || $have_after) {
+ common_element_end('ul');
+ common_element_end('div');
+ }
+}
+
+/* Following functions are copied from MediaWiki GlobalFunctions.php
+ * and written by Evan Prodromou. */
+
+function common_accept_to_prefs($accept, $def = '*/*') {
+ # No arg means accept anything (per HTTP spec)
+ if(!$accept) {
+ return array($def => 1);
+ }
+
+ $prefs = array();
+
+ $parts = explode(',', $accept);
+
+ foreach($parts as $part) {
+ # FIXME: doesn't deal with params like 'text/html; level=1'
+ @list($value, $qpart) = explode(';', $part);
+ $match = array();
+ if(!isset($qpart)) {
+ $prefs[$value] = 1;
+ } elseif(preg_match('/q\s*=\s*(\d*\.\d+)/', $qpart, $match)) {
+ $prefs[$value] = $match[1];
+ }
+ }
+
+ return $prefs;
+}
+
+function common_mime_type_match($type, $avail) {
+ if(array_key_exists($type, $avail)) {
+ return $type;
+ } else {
+ $parts = explode('/', $type);
+ if(array_key_exists($parts[0] . '/*', $avail)) {
+ return $parts[0] . '/*';
+ } elseif(array_key_exists('*/*', $avail)) {
+ return '*/*';
+ } else {
+ return NULL;
+ }
+ }
+}
+
+function common_negotiate_type($cprefs, $sprefs) {
+ $combine = array();
+
+ foreach(array_keys($sprefs) as $type) {
+ $parts = explode('/', $type);
+ if($parts[1] != '*') {
+ $ckey = common_mime_type_match($type, $cprefs);
+ if($ckey) {
+ $combine[$type] = $sprefs[$type] * $cprefs[$ckey];
+ }
+ }
+ }
+
+ foreach(array_keys($cprefs) as $type) {
+ $parts = explode('/', $type);
+ if($parts[1] != '*' && !array_key_exists($type, $sprefs)) {
+ $skey = common_mime_type_match($type, $sprefs);
+ if($skey) {
+ $combine[$type] = $sprefs[$skey] * $cprefs[$type];
+ }
+ }
+ }
+
+ $bestq = 0;
+ $besttype = NULL;
+
+ foreach(array_keys($combine) as $type) {
+ if($combine[$type] > $bestq) {
+ $besttype = $type;
+ $bestq = $combine[$type];
+ }
+ }
+
+ return $besttype;
+}
+
+function common_config($main, $sub) {
+ global $config;
+ return $config[$main][$sub];
+}