303 lines
7.6 KiB
PHP
303 lines
7.6 KiB
PHP
<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, Controlez-Vous, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* XXX: break up into separate modules (HTTP, HTML, user, files) */
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if (!defined('LACONICA')) { exit(1) }
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define('AVATAR_PROFILE_SIZE', 96);
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define('AVATAR_STREAM_SIZE', 48);
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define('AVATAR_MINI_SIZE', 24);
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define('MAX_AVATAR_SIZE', 256 * 1024);
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# global configuration object
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require_once('PEAR.php');
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require_once('DB_DataObject.php');
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// default configuration, overwritten in config.php
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$config =
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array('site' =>
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array('name' => 'Just another Laconica microblog',
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'server' => 'localhost',
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'path' => '/'),
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'avatar' =>
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array('directory' => INSTALLDIR . 'files',
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'path' => '/files'),
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'db' => &PEAR::getStaticProperty('DB_DataObject','options'),
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);
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$config['db'] =
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array('database' => 'YOU HAVE TO SET THIS IN config.php',
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'schema_location' => $INSTALLDIR . '/classes',
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'class_location' => $INSTALLDIR . '/classes',
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'require_prefix' => 'classes/',
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'class_prefix' => '',
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'db_driver' => 'MDB2',
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'quote_identifiers' => false);
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require_once(INSTALLDIR . '/config.php');
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# Show a server error
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function common_server_error($msg) {
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header('Status: 500 Server Error');
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header('Content-type: text/plain');
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print $msg;
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exit();
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}
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# Show a user error
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function common_user_error($msg, $code=200) {
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common_show_header('Error');
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common_element('div', array('class' => 'error'), $msg);
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common_show_footer();
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}
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# Start an HTML element
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function common_element_start($tag, $attrs=NULL) {
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print "<$tag";
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if (is_array($attrs)) {
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foreach ($attrs as $name => $value) {
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print " $name='$value'";
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}
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} else if (is_string($attrs)) {
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print " class='$attrs'";
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}
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print '>';
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}
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function common_element_end($tag) {
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print "</$tag>";
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}
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function common_element($tag, $attrs=NULL, $content=NULL) {
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common_element_start($tag, $attrs);
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if ($content) print htmlspecialchars($content);
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common_element_end($tag);
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}
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function common_show_header($pagetitle) {
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global $config;
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common_element_start('html');
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common_element_start('head');
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common_element('title', NULL,
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$pagetitle . " - " . $config['site']['name']);
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common_element_end('head');
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common_element_start('body');
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common_head_menu();
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}
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function common_show_footer() {
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common_foot_menu();
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common_element_end('body');
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common_element_end('html');
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}
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function common_head_menu() {
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$user = common_current_user();
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common_element_start('ul', 'headmenu');
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common_menu_item(common_local_url('doc', array('title' => 'help')),
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_t('Help'));
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if ($user) {
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common_menu_item(common_local_url('all', array('nickname' =>
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$user->nickname)),
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_t('Home'));
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common_menu_item(common_local_url('showstream', array('nickname' =>
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$user->nickname)),
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_t('Profile'), $user->fullname || $user->nickname);
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common_menu_item(common_local_url('profilesettings'),
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_t('Settings'));
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common_menu_item(common_local_url('logout'),
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_t('Logout'));
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} else {
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common_menu_item(common_local_url('login'),
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_t('Login'));
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common_menu_item(common_local_url('register'),
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_t('Register'));
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}
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common_element_end('ul');
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}
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function common_foot_menu() {
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common_element_start('ul', 'footmenu');
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common_menu_item(common_local_url('doc', array('title' => 'about')),
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_t('About'));
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common_menu_item(common_local_url('doc', array('title' => 'help')),
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_t('Help'));
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common_menu_item(common_local_url('doc', array('title' => 'privacy')),
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_t('Privacy'));
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}
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function common_menu_item($url, $text, $title=NULL) {
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$attrs['href'] = $url;
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if ($title) {
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$attrs['title'] = $title;
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}
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common_element_start('li', 'menuitem');
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common_element('a', $attrs, $text);
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common_element_end('li');
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}
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function common_input($id, $label) {
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common_element('label', array('for' => $id), $label);
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common_element('input', array('name' => $id,
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'type' => 'text',
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'id' => $id));
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}
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# salted, hashed passwords are stored in the DB
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function common_munge_password($id, $password) {
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return md5($id . $password);
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}
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# check if a username exists and has matching password
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function common_check_user($nickname, $password) {
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$user = User::staticGet('nickname', $nickname);
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if (is_null($user)) {
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return false;
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} else {
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return (0 == strcmp(common_munge_password($password, $user->id),
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$user->password));
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}
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}
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# is the current user logged in?
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function common_logged_in() {
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return (!is_null(common_current_user()));
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}
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function common_have_session() {
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return (0 != strcmp(session_id(), ''));
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}
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function common_ensure_session() {
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if (!common_have_session()) {
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@session_start();
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}
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}
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function common_set_user($nickname) {
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if (is_null($nickname) && common_have_session()) {
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unset($_SESSION['userid']);
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return true;
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} else {
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$user = User::staticGet('nickname', $nickname);
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if ($user) {
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common_ensure_session();
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$_SESSION['userid'] = $user->id;
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return true;
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} else {
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return false;
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}
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}
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return false;
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}
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# who is the current user?
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function common_current_user() {
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static $user = NULL; # FIXME: global memcached
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if (is_null($user)) {
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if (common_have_session()) {
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$id = $_SESSION['userid'];
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if ($id) {
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$user = User::staticGet($id);
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}
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}
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}
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return $user;
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}
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# get canonical version of nickname for comparison
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function common_canonical_nickname($nickname) {
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# XXX: UTF-8 canonicalization (like combining chars)
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return strtolower($nickname);
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}
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function common_render_content($text) {
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# XXX: @ messages
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# XXX: # tags
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# XXX: machine tags
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return htmlspecialchars($text);
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}
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// where should the avatar go for this user?
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function common_avatar_filename($user, $extension, $size=NULL) {
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global $config;
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if ($size) {
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return $user->id . '-' . $size . $extension;
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} else {
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return $user->id . '-original' . $extension;
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}
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}
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function common_avatar_path($filename) {
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global $config;
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return $config['avatar']['directory'] . '/' . $filename;
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}
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function common_avatar_url($filename) {
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global $config;
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return $config['avatar']['path'] . '/' . $filename;
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}
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function common_local_url($action, $args) {
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global $config;
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/* XXX: pretty URLs */
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$extra = '';
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foreach ($args as $key => $value) {
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$extra .= "&${key}=${value}";
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}
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return "http://".$config['site']['server'].'/'.$config['site']['path']."/index.php?action=${action}${extra}";
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}
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function commmon_date_string($dt) {
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// XXX: do some sexy date formatting
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return date(DATE_RFC822);
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}
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function common_redirect($url, $code=307) {
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static $status = (301 => "Moved Permanently",
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302 => "Found",
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303 => "See Other",
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307 => "Temporary Redirect");
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header("Status: ${code} $status[$code]");
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header("Location: $url");
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common_element('a', array('href' => $url), $url);
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}
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function common_broadcast_notices($id) {
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// XXX: broadcast notices to remote subscribers
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// XXX: broadcast notices to SMS
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// XXX: broadcast notices to Jabber
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// XXX: broadcast notices to other IM
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// XXX: use a queue system like http://code.google.com/p/microapps/wiki/NQDQ
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return true;
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}
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// XXX: set up gettext
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function _t($str) { $str }
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