-/* XXX: break up into separate modules (HTTP, HTML, user, files) */
-
-# Show a 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=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'), $msg);
- common_show_footer();
-}
-
-$xw = null;
-
-# Start an HTML element
-function common_element_start($tag, $attrs=NULL) {
- global $xw;
- $xw->startElement($tag);
- if (is_array($attrs)) {
- foreach ($attrs as $name => $value) {
- $xw->writeAttribute($name, $value);
- }
- } else if (is_string($attrs)) {
- $xw->writeAttribute('class', $attrs);
- }
-}
-
-function common_element_end($tag) {
- static $empty_tag = array('base', 'meta', 'link', 'hr',
- 'br', 'param', 'img', 'area',
- 'input', 'col');
- global $xw;
- # XXX: check namespace
- if (in_array($tag, $empty_tag)) {
- $xw->endElement();
- } else {
- $xw->fullEndElement();
- }
-}
-
-function common_element($tag, $attrs=NULL, $content=NULL) {
- common_element_start($tag, $attrs);
- global $xw;
- if (!is_null($content)) {
- $xw->text($content);
- }
- common_element_end($tag);
-}
-
-function common_start_xml($doc=NULL, $public=NULL, $system=NULL, $indent=true) {
- global $xw;
- $xw = new XMLWriter();
- $xw->openURI('php://output');
- $xw->setIndent($indent);
- $xw->startDocument('1.0', 'UTF-8');
- if ($doc) {
- $xw->writeDTD($doc, $public, $system);
- }
-}
-
-function common_end_xml() {
- global $xw;
- $xw->endDocument();
- $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",
- $language);
- bindtextdomain("laconica", common_config('site','locale_path'));
- bind_textdomain_codeset("laconica", "UTF-8");
- textdomain("laconica");
- setlocale(LC_CTYPE, 'C');
- if(!$locale_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;
-
- 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') . '?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'.$ver.'.css').'?version='.LACONICA_VERSION.'" /><![endif]');
- }
- }
-
- common_element('script', array('type' => 'text/javascript',
- 'src' => common_path('js/jquery.min.js')),
- ' ');
- common_element('script', array('type' => 'text/javascript',
- 'src' => common_path('js/jquery.form.js')),
- ' ');
- common_element('script', array('type' => 'text/javascript',
- 'src' => common_path('js/xbImportNode.js')),
- ' ');
- common_element('script', array('type' => 'text/javascript',
- 'src' => common_path('js/util.js?version='.LACONICA_VERSION)),
- ' ');
- common_element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
- 'href' => common_local_url('opensearch', array('type' => 'people')),
- 'title' => common_config('site', 'name').' People Search'));
-
- common_element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
- 'href' => common_local_url('opensearch', array('type' => 'notice')),
- 'title' => common_config('site', 'name').' Notice Search'));
-
- if ($callable) {
- if ($data) {
- call_user_func($callable, $data);
- } else {
- call_user_func($callable);
- }
- }
- common_element_end('head');
- common_element_start('body');
- common_element_start('div', array('id' => 'wrap'));
- common_element_start('div', array('id' => 'header'));
- common_nav_menu();
- if ((isset($config['site']['logo']) && is_string($config['site']['logo']) && (strlen($config['site']['logo']) > 0))
- || file_exists(theme_file('logo.png')))
- {
- common_element_start('a', array('href' => common_local_url('public')));
- common_element('img', array('src' => isset($config['site']['logo']) ?
- ($config['site']['logo']) : theme_path('logo.png'),
- 'alt' => $config['site']['name'],
- 'id' => 'logo'));
- common_element_end('a');
- } else {
- common_element_start('p', array('id' => 'branding'));
- common_element('a', array('href' => common_local_url('public')),
- $config['site']['name']);
- common_element_end('p');
- }
-
- common_element('h1', 'pagetitle', $pagetitle);
-
- if ($headercall) {
- if ($data) {
- call_user_func($headercall, $data);
- } else {
- call_user_func($headercall);
- }
- }
- common_element_end('div');
- common_element_start('div', array('id' => 'content'));
-}
-
-function common_start_html($type=NULL, $indent=true) {
-
- if (!$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', $indent);
-
- # 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() {
- global $xw, $config;
- common_element_end('div'); # content div
- common_foot_menu();
- common_element_start('div', array('id' => 'footer'));
- common_element_start('div', 'laconica');
- if (common_config('site', 'broughtby')) {
- $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%). ');
- } else {
- $instr = _('**%%site.name%%** is a microblogging service. ');
- }
- $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);
- $output = common_markup_to_html($instr);
- common_raw($output);
- common_element_end('div');
- common_element('img', array('id' => 'cc',
- 'src' => $config['license']['image'],
- 'alt' => $config['license']['title']));
- common_element_start('p');
- 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']),
- $config['license']['title']);
- common_text(_('. Contributors should be attributed by full name or nickname.'));
- common_element_end('p');
- common_element_end('div');
- common_element_end('div');
- common_element_end('body');
- common_element_end('html');
- common_end_xml();
-}
-
-function common_text($txt) {
- global $xw;
- $xw->text($txt);
-}
-
-function common_raw($xml) {
- global $xw;
- $xw->writeRaw($xml);
-}
-
-function common_nav_menu() {
- $user = common_current_user();
- common_element_start('ul', array('id' => 'nav'));
- if ($user) {
- common_menu_item(common_local_url('all', array('nickname' => $user->nickname)),
- _('Home'));
- }
- common_menu_item(common_local_url('peoplesearch'), _('Search'));
- if ($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'));
- if (!common_config('site', 'closed')) {
- common_menu_item(common_local_url('register'), _('Register'));
- }
- common_menu_item(common_local_url('openidlogin'), _('OpenID'));
- }
- common_menu_item(common_local_url('doc', array('title' => 'help')),
- _('Help'));
- common_element_end('ul');
-}
-
-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')),
- _('FAQ'));
- common_menu_item(common_local_url('doc', array('title' => 'privacy')),
- _('Privacy'));
- common_menu_item(common_local_url('doc', array('title' => 'source')),
- _('Source'));
- common_menu_item(common_local_url('doc', array('title' => 'contact')),
- _('Contact'));
- common_element_end('ul');
-}
-
-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('a', $attrs, $text);
- common_element_end('li');
-}
-
-function common_input($id, $label, $value=NULL,$instructions=NULL) {
- common_element_start('p');
- common_element('label', array('for' => $id), $label);
- $attrs = array('name' => $id,
- 'type' => 'text',
- 'class' => 'input_text',
- 'id' => $id);
- if ($value) {
- $attrs['value'] = htmlspecialchars($value);
- }
- common_element('input', $attrs);
- if ($instructions) {
- common_element('span', 'input_instructions', $instructions);
- }
- common_element_end('p');
-}
-
-function common_checkbox($id, $label, $checked=false, $instructions=NULL, $value='true', $disabled=false)
-{
- common_element_start('p');
- $attrs = array('name' => $id,
- 'type' => 'checkbox',
- 'class' => 'checkbox',
- 'id' => $id);
- if ($value) {
- $attrs['value'] = htmlspecialchars($value);
- }
- if ($checked) {
- $attrs['checked'] = 'checked';
- }
- if ($disabled) {
- $attrs['disabled'] = 'true';
- }
- common_element('input', $attrs);
- # XXX: use a <label>
- common_text(' ');
- common_element('span', 'checkbox_label', $label);
- common_text(' ');
- if ($instructions) {
- common_element('span', 'input_instructions', $instructions);
- }
- common_element_end('p');
-}
-
-function common_dropdown($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',
- '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',
- 'class' => 'password',
- 'id' => $id);
- common_element('input', $attrs);
- if ($instructions) {
- common_element('span', 'input_instructions', $instructions);
- }
- common_element_end('p');
-}
-
-function common_submit($id, $label, $cls='submit') {
- global $xw;
- common_element_start('p');
- common_element('input', array('type' => 'submit',
- 'id' => $id,
- 'name' => $id,
- 'class' => $cls,
- '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');
-}
-
-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 $user_language;
+/* XXX: break up into separate modules (HTTP, user, files) */
+
+// Show a server error
+
+function common_server_error($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=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'), $msg);
+ common_show_footer();
+}
+
+function common_init_locale($language=null)
+{
+ if(!$language) {
+ $language = common_language();
+ }
+ putenv('LANGUAGE='.$language);
+ putenv('LANG='.$language);
+ return setlocale(LC_ALL, $language . ".utf8",
+ $language . ".UTF8",
+ $language . ".utf-8",
+ $language . ".UTF-8",
+ $language);
+}
+
+function common_init_language()
+{
+ mb_internal_encoding('UTF-8');
+ $language = common_language();
+ // So we don't have to make people install the gettext locales
+ $locale_set = common_init_locale($language);
+ bindtextdomain("laconica", common_config('site','locale_path'));
+ bind_textdomain_codeset("laconica", "UTF-8");
+ textdomain("laconica");
+ setlocale(LC_CTYPE, 'C');
+ if(!$locale_set) {
+ common_log(LOG_INFO,'Language requested:'.$language.' - locale could not be set:',__FILE__);
+ }
+}
+
+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, $id)
+{
+ return md5($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;
+ } else {
+ if (0 == strcmp(common_munge_password($password, $user->id),
+ $user->password)) {
+ return $user;
+ } else {
+ return false;
+ }
+ }
+}
+
+// is the current user logged in?
+function common_logged_in()
+{
+ return (!is_null(common_current_user()));
+}
+
+function common_have_session()
+{
+ return (0 != strcmp(session_id(), ''));
+}
+
+function common_ensure_session()
+{
+ if (!common_have_session()) {
+ @session_start();
+ }
+}
+
+// Three kinds of arguments:
+// 1) a user object
+// 2) a nickname
+// 3) null to clear
+
+// Initialize to false; set to null if none found
+
+$_cur = false;
+
+function common_set_user($user)
+{
+
+ global $_cur;
+
+ if (is_null($user) && common_have_session()) {
+ $_cur = null;
+ unset($_SESSION['userid']);
+ return true;
+ } else if (is_string($user)) {
+ $nickname = $user;
+ $user = User::staticGet('nickname', $nickname);
+ } else if (!($user instanceof User)) {
+ return false;
+ }
+
+ if ($user) {
+ common_ensure_session();
+ $_SESSION['userid'] = $user->id;
+ $_cur = $user;
+ return $_cur;
+ }
+ return false;
+}
+
+function common_set_cookie($key, $value, $expiration=0)
+{
+ $path = common_config('site', 'path');
+ $server = common_config('site', 'server');
+
+ if ($path && ($path != '/')) {
+ $cookiepath = '/' . $path . '/';
+ } else {
+ $cookiepath = '/';
+ }
+ return setcookie($key,
+ $value,
+ $expiration,
+ $cookiepath,
+ $server);
+}
+
+define('REMEMBERME', 'rememberme');
+define('REMEMBERME_EXPIRY', 30 * 24 * 60 * 60); // 30 days
+
+function common_rememberme($user=null)
+{
+ if (!$user) {
+ $user = common_current_user();
+ if (!$user) {
+ common_debug('No current user to remember', __FILE__);
+ return false;
+ }
+ }
+
+ $rm = new Remember_me();
+
+ $rm->code = common_good_rand(16);
+ $rm->user_id = $user->id;
+
+ // Wrap the insert in some good ol' fashioned transaction code
+
+ $rm->query('BEGIN');
+
+ $result = $rm->insert();
+
+ if (!$result) {
+ common_log_db_error($rm, 'INSERT', __FILE__);
+ common_debug('Error adding rememberme record for ' . $user->nickname, __FILE__);
+ return false;
+ }
+
+ $rm->query('COMMIT');
+
+ common_debug('Inserted rememberme record (' . $rm->code . ', ' . $rm->user_id . '); result = ' . $result . '.', __FILE__);
+
+ $cookieval = $rm->user_id . ':' . $rm->code;
+
+ common_log(LOG_INFO, 'adding rememberme cookie "' . $cookieval . '" for ' . $user->nickname);
+
+ common_set_cookie(REMEMBERME, $cookieval, time() + REMEMBERME_EXPIRY);
+
+ return true;
+}
+
+function common_remembered_user()
+{
+
+ $user = null;
+
+ $packed = isset($_COOKIE[REMEMBERME]) ? $_COOKIE[REMEMBERME] : null;
+
+ if (!$packed) {
+ return null;
+ }
+
+ list($id, $code) = explode(':', $packed);
+
+ if (!$id || !$code) {
+ common_log(LOG_WARNING, 'Malformed rememberme cookie: ' . $packed);
+ common_forgetme();
+ return null;
+ }
+
+ $rm = Remember_me::staticGet($code);
+
+ if (!$rm) {
+ common_log(LOG_WARNING, 'No such remember code: ' . $code);
+ common_forgetme();
+ return null;
+ }
+
+ if ($rm->user_id != $id) {
+ common_log(LOG_WARNING, 'Rememberme code for wrong user: ' . $rm->user_id . ' != ' . $id);
+ common_forgetme();
+ return null;
+ }
+
+ $user = User::staticGet($rm->user_id);
+
+ if (!$user) {
+ common_log(LOG_WARNING, 'No such user for rememberme: ' . $rm->user_id);
+ common_forgetme();
+ return null;
+ }
+
+ // successful!
+ $result = $rm->delete();
+
+ if (!$result) {
+ common_log_db_error($rm, 'DELETE', __FILE__);
+ common_log(LOG_WARNING, 'Could not delete rememberme: ' . $code);
+ common_forgetme();
+ return null;
+ }
+
+ common_log(LOG_INFO, 'logging in ' . $user->nickname . ' using rememberme code ' . $rm->code);
+
+ common_set_user($user);
+ common_real_login(false);
+
+ // We issue a new cookie, so they can log in
+ // automatically again after this session
+
+ common_rememberme($user);
+
+ return $user;
+}
+
+// must be called with a valid user!
+
+function common_forgetme()
+{
+ common_set_cookie(REMEMBERME, '', 0);
+}
+
+// who is the current user?
+function common_current_user()
+{
+ global $_cur;
+
+ if ($_cur === false) {
+
+ if (isset($_REQUEST[session_name()]) || (isset($_SESSION['userid']) && $_SESSION['userid'])) {
+ common_ensure_session();
+ $id = isset($_SESSION['userid']) ? $_SESSION['userid'] : false;
+ if ($id) {
+ $_cur = User::staticGet($id);
+ return $_cur;
+ }
+ }
+
+ // that didn't work; try to remember; will init $_cur to null on failure
+ $_cur = common_remembered_user();
+
+ if ($_cur) {
+ common_debug("Got User " . $_cur->nickname);
+ common_debug("Faking session on remembered user");
+ // XXX: Is this necessary?
+ $_SESSION['userid'] = $_cur->id;
+ }
+ }
+
+ return $_cur;
+}
+
+// Logins that are 'remembered' aren't 'real' -- they're subject to
+// cookie-stealing. So, we don't let them do certain things. New reg,
+// OpenID, and password logins _are_ real.
+
+function common_real_login($real=true)
+{
+ common_ensure_session();
+ $_SESSION['real_login'] = $real;
+}
+
+function common_is_real_login()
+{
+ return common_logged_in() && $_SESSION['real_login'];
+}
+
+// get canonical version of nickname for comparison
+function common_canonical_nickname($nickname)
+{
+ // XXX: UTF-8 canonicalization (like combining chars)
+ return strtolower($nickname);
+}
+
+// get canonical version of email for comparison
+function common_canonical_email($email)
+{
+ // XXX: canonicalize UTF-8
+ // XXX: lcase the domain part
+ return $email;
+}
+
+define('URL_REGEX', '^|[ \t\r\n])((ftp|http|https|gopher|mailto|news|nntp|telnet|wais|file|prospero|aim|webcal):(([A-Za-z0-9$_.+!*(),;/?:@&~=-])|%[A-Fa-f0-9]{2}){2,}(#([a-zA-Z0-9][a-zA-Z0-9$_.+!*(),;/?:@&~=%-]*))?([A-Za-z0-9$_+!*();/?:~-]))');
+
+function common_render_content($text, $notice)
+{
+ $r = common_render_text($text);
+ $id = $notice->profile_id;
+ $r = preg_replace('/(^|\s+)@([A-Za-z0-9]{1,64})/e', "'\\1@'.common_at_link($id, '\\2')", $r);
+ $r = preg_replace('/^T ([A-Z0-9]{1,64}) /e', "'T '.common_at_link($id, '\\1').' '", $r);
+ $r = preg_replace('/(^|\s+)@#([A-Za-z0-9]{1,64})/e', "'\\1@#'.common_at_hash_link($id, '\\2')", $r);
+ 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 . $trailer;
+ }
+ }
+ if ($longurl = common_longurl($uri)) {
+ $longurl = htmlentities($longurl, ENT_QUOTES, 'UTF-8');
+ $title = " title='$longurl'";
+ }
+ else $title = '';
+
+ return '<a href="' . $uri . '"' . $title . ' class="extlink">' . $uri . '</a>' . $trailer;
+}
+
+function common_longurl($short_url)
+{
+ $long_url = common_shorten_link($short_url, true);
+ if ($long_url === $short_url) return false;
+ return $long_url;
+}
+
+function common_longurl2($uri)
+{
+ $uri_e = urlencode($uri);
+ $longurl = unserialize(file_get_contents("http://api.longurl.org/v1/expand?format=php&url=$uri_e"));
+ if (empty($longurl['long_url']) || $uri === $longurl['long_url']) return false;
+ return stripslashes($longurl['long_url']);
+}
+
+function common_shorten_links($text)
+{
+ if (mb_strlen($text) <= 140) return $text;
+ static $cache = array();
+ if (isset($cache[$text])) return $cache[$text];
+ // \s = not a horizontal whitespace character (since PHP 5.2.4)
+ return $cache[$text] = preg_replace('@https?://[^)\]>\s]+@e', "common_shorten_link('\\0')", $text);
+}
+
+function common_shorten_link($url, $reverse = false)
+{
+ static $url_cache = array();
+ if ($reverse) return isset($url_cache[$url]) ? $url_cache[$url] : $url;
+
+ $user = common_current_user();
+
+ $curlh = curl_init();
+ curl_setopt($curlh, CURLOPT_CONNECTTIMEOUT, 20); // # seconds to wait
+ curl_setopt($curlh, CURLOPT_USERAGENT, 'Laconica');
+ curl_setopt($curlh, CURLOPT_RETURNTRANSFER, true);
+
+ switch($user->urlshorteningservice) {
+ case 'ur1.ca':
+ $short_url_service = new LilUrl;
+ $short_url = $short_url_service->shorten($url);
+ break;
+
+ case '2tu.us':
+ $short_url_service = new TightUrl;
+ $short_url = $short_url_service->shorten($url);
+ break;
+
+ case 'ptiturl.com':
+ $short_url_service = new PtitUrl;
+ $short_url = $short_url_service->shorten($url);
+ break;
+
+ case 'bit.ly':
+ curl_setopt($curlh, CURLOPT_URL, 'http://bit.ly/api?method=shorten&long_url='.urlencode($url));
+ $short_url = current(json_decode(curl_exec($curlh))->results)->hashUrl;
+ break;
+
+ case 'is.gd':
+ curl_setopt($curlh, CURLOPT_URL, 'http://is.gd/api.php?longurl='.urlencode($url));
+ $short_url = curl_exec($curlh);
+ break;
+ case 'snipr.com':
+ curl_setopt($curlh, CURLOPT_URL, 'http://snipr.com/site/snip?r=simple&link='.urlencode($url));
+ $short_url = curl_exec($curlh);
+ break;
+ case 'metamark.net':
+ curl_setopt($curlh, CURLOPT_URL, 'http://metamark.net/api/rest/simple?long_url='.urlencode($url));
+ $short_url = curl_exec($curlh);
+ break;
+ case 'tinyurl.com':
+ curl_setopt($curlh, CURLOPT_URL, 'http://tinyurl.com/api-create.php?url='.urlencode($url));
+ $short_url = curl_exec($curlh);
+ break;
+ default:
+ $short_url = false;
+ }
+
+ curl_close($curlh);
+
+ if ($short_url) {
+ $url_cache[(string)$short_url] = $url;
+ return (string)$short_url;
+ }
+ return $url;
+}
+
+function common_xml_safe_str($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('-', '_', '.'), '', $tag));
+}
+
+function common_valid_profile_tag($str)
+{
+ return preg_match('/^[A-Za-z0-9_\-\.]{1,64}$/', $str);
+}
+
+function common_at_link($sender_id, $nickname)
+{
+ $sender = Profile::staticGet($sender_id);
+ $recipient = common_relative_profile($sender, common_canonical_nickname($nickname));
+ if ($recipient) {
+ return '<a href="'.htmlspecialchars($recipient->profileurl).'" class="atlink">'.$nickname.'</a>';
+ } else {
+ return $nickname;
+ }
+}
+
+function common_at_hash_link($sender_id, $tag)
+{
+ $user = User::staticGet($sender_id);
+ if (!$user) {
+ return $tag;
+ }
+ $tagged = Profile_tag::getTagged($user->id, common_canonical_tag($tag));
+ if ($tagged) {
+ $url = common_local_url('subscriptions',
+ array('nickname' => $user->nickname,
+ 'tag' => $tag));
+ return '<a href="'.htmlspecialchars($url).'" class="atlink">'.$tag.'</a>';
+ } else {
+ return $tag;
+ }
+}
+
+function common_relative_profile($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');
+ $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
+ if ($recipient->find(true)) {
+ // XXX: should probably differentiate between profiles with
+ // the same name by date of most recent update
+ return $recipient;
+ }
+ // 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');
+ $recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
+ if ($recipient->find(true)) {
+ // XXX: should probably differentiate between profiles with
+ // the same name by date of most recent update
+ return $recipient;
+ }
+ // 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) {
+ return $recipient_user->getProfile();
+ }
+ }
+ // Otherwise, no links. @messages from local users to remote users,
+ // or from remote users to other remote users, are just
+ // outside our ability to make intelligent guesses about
+ return null;
+}
+
+// where should the avatar go for this user?
+
+function common_avatar_filename($id, $extension, $size=null, $extra=null)
+{
+ global $config;
+
+ if ($size) {
+ return $id . '-' . $size . (($extra) ? ('-' . $extra) : '') . $extension;
+ } else {
+ return $id . '-original' . (($extra) ? ('-' . $extra) : '') . $extension;
+ }
+}
+
+function common_avatar_path($filename)
+{
+ global $config;
+ return INSTALLDIR . '/avatar/' . $filename;
+}
+
+function common_avatar_url($filename)
+{
+ return common_path('avatar/'.$filename);
+}
+
+function common_avatar_display_url($avatar)
+{
+ $server = common_config('avatar', 'server');
+ if ($server) {
+ return 'http://'.$server.'/'.$avatar->filename;
+ } else {
+ return $avatar->url;
+ }
+}
+
+function common_default_avatar($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, $fragment=null)
+{
+ $url = null;
+ if (common_config('site','fancy')) {
+ $url = common_fancy_url($action, $args);
+ } else {
+ $url = common_simple_url($action, $args);
+ }
+ if (!is_null($fragment)) {
+ $url .= '#'.$fragment;
+ }
+ return $url;
+}
+
+function common_fancy_url($action, $args=null)
+{
+ switch (strtolower($action)) {
+ case 'public':
+ if ($args && isset($args['page'])) {
+ return common_path('?page=' . $args['page']);
+ } else {
+ return common_path('');
+ }
+ case 'featured':
+ if ($args && isset($args['page'])) {
+ return common_path('featured?page=' . $args['page']);
+ } else {
+ return common_path('featured');
+ }
+ case 'favorited':
+ if ($args && isset($args['page'])) {
+ return common_path('favorited?page=' . $args['page']);
+ } else {
+ return common_path('favorited');
+ }
+ case 'publicrss':
+ return common_path('rss');
+ case 'publicatom':
+ return common_path("api/statuses/public_timeline.atom");
+ case 'publicxrds':
+ return common_path('xrds');
+ case 'featuredrss':
+ return common_path('featuredrss');
+ case 'favoritedrss':
+ return common_path('favoritedrss');
+ case 'opensearch':
+ if ($args && $args['type']) {
+ return common_path('opensearch/'.$args['type']);
+ } else {
+ return common_path('opensearch/people');
+ }
+ case 'doc':
+ return common_path('doc/'.$args['title']);
+ case 'block':
+ case 'login':
+ case 'logout':
+ case 'subscribe':
+ case 'unsubscribe':
+ case 'invite':
+ return common_path('main/'.$action);
+ case 'tagother':
+ return common_path('main/tagother?id='.$args['id']);
+ case 'register':
+ if ($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=' . $args['nickname']);
+ } else {
+ return common_path('main/remote');
+ }
+ case 'nudge':
+ return common_path($args['nickname'].'/nudge');
+ case 'openidlogin':
+ return common_path('main/openid');
+ 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 'othersettings':
+ return common_path('settings/other');
+ case 'deleteprofile':
+ return common_path('settings/delete');
+ case 'newnotice':
+ if ($args && $args['replyto']) {
+ return common_path('notice/new?replyto='.$args['replyto']);
+ } else {
+ return common_path('notice/new');
+ }
+ 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 'microsummary':
+ case 'xrds':
+ case 'foaf':
+ return common_path($args['nickname'].'/'.$action);
+ case 'all':
+ case 'replies':
+ case 'inbox':
+ case 'outbox':
+ if ($args && isset($args['page'])) {
+ return common_path($args['nickname'].'/'.$action.'?page=' . $args['page']);
+ } else {
+ return common_path($args['nickname'].'/'.$action);
+ }
+ case 'subscriptions':
+ case 'subscribers':
+ $nickname = $args['nickname'];
+ unset($args['nickname']);
+ if (isset($args['tag'])) {
+ $tag = $args['tag'];
+ unset($args['tag']);
+ }
+ $params = http_build_query($args);
+ if ($params) {
+ return common_path($nickname.'/'.$action . (($tag) ? '/' . $tag : '') . '?' . $params);
+ } else {
+ return common_path($nickname.'/'.$action . (($tag) ? '/' . $tag : ''));
+ }
+ case 'allrss':
+ return common_path($args['nickname'].'/all/rss');
+ case 'repliesrss':
+ return common_path($args['nickname'].'/replies/rss');
+ case 'userrss':
+ if (isset($args['limit']))
+ return common_path($args['nickname'].'/rss?limit=' . $args['limit']);
+ return common_path($args['nickname'].'/rss');
+ case 'showstream':
+ if ($args && isset($args['page'])) {
+ return common_path($args['nickname'].'?page=' . $args['page']);
+ } else {
+ return common_path($args['nickname']);
+ }
+
+ case 'usertimeline':
+ return common_path("api/statuses/user_timeline/".$args['nickname'].".atom");
+ case 'confirmaddress':
+ return common_path('main/confirmaddress/'.$args['code']);
+ case 'userbyid':
+ return common_path('user/'.$args['id']);
+ case 'recoverpassword':
+ $path = 'main/recoverpassword';
+ if ($args['code']) {
+ $path .= '/' . $args['code'];
+ }
+ return common_path($path);
+ case 'imsettings':
+ return common_path('settings/im');
+ case 'peoplesearch':
+ return common_path('search/people' . (($args) ? ('?' . http_build_query($args)) : ''));
+ case 'noticesearch':
+ return common_path('search/notice' . (($args) ? ('?' . http_build_query($args)) : ''));
+ case 'noticesearchrss':
+ 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 'peopletag':
+ $path = 'peopletag/' . $args['tag'];
+ unset($args['tag']);
+ 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/'.$args['argument'].'.atom');
+ case 'user_timeline.json':
+ return common_path('api/statuses/user_timeline/'.$args['argument'].'.json');
+ case 'user_timeline.xml':
+ return common_path('api/statuses/user_timeline/'.$args['argument'].'.xml');
+ default: return common_simple_url($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');