forked from GNUsocial/gnu-social
e013c06346
The OAuth library uses the $_GET and $_POST arrays for checking signatures on requests. So, we need to make sure that the client sees the same request parameters as the server (or callback). These don't have to be particularly readable URLs, anyways, since they're mostly "behind the scenes". darcs-hash:20080610123002-84dde-0bce005b77d053d22cfbba8e0743af1b49f151bb.gz
687 lines
19 KiB
PHP
687 lines
19 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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# Show a server error
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function common_server_error($msg, $code=500) {
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static $status = array(500 => 'Internal Server Error',
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501 => 'Not Implemented',
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502 => 'Bad Gateway',
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503 => 'Service Unavailable',
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504 => 'Gateway Timeout',
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505 => 'HTTP Version Not Supported');
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if (!array_key_exists($code, $status)) {
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$code = 500;
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}
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$status_string = $status[$code];
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header('HTTP/1.1 '.$code.' '.$status_string);
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header('Content-type: text/plain');
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print $msg;
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print "\n";
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exit();
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}
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# Show a user error
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function common_user_error($msg, $code=400) {
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static $status = array(400 => 'Bad Request',
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401 => 'Unauthorized',
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402 => 'Payment Required',
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403 => 'Forbidden',
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404 => 'Not Found',
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405 => 'Method Not Allowed',
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406 => 'Not Acceptable',
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407 => 'Proxy Authentication Required',
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408 => 'Request Timeout',
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409 => 'Conflict',
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410 => 'Gone',
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411 => 'Length Required',
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412 => 'Precondition Failed',
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413 => 'Request Entity Too Large',
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414 => 'Request-URI Too Long',
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415 => 'Unsupported Media Type',
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416 => 'Requested Range Not Satisfiable',
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417 => 'Expectation Failed');
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if (!array_key_exists($code, $status)) {
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$code = 400;
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}
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$status_string = $status[$code];
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header('HTTP/1.1 '.$code.' '.$status_string);
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common_show_header('Error');
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common_element('div', array('class' => 'error'), $msg);
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common_show_footer();
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}
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$xw = null;
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# Start an HTML element
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function common_element_start($tag, $attrs=NULL) {
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global $xw;
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$xw->startElement($tag);
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if (is_array($attrs)) {
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foreach ($attrs as $name => $value) {
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$xw->writeAttribute($name, $value);
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}
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} else if (is_string($attrs)) {
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$xw->writeAttribute('class', $attrs);
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}
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}
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function common_element_end($tag) {
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global $xw;
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$xw->endElement();
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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) {
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global $xw;
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$xw->text($content);
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}
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common_element_end($tag);
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}
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function common_start_xml($doc=NULL, $public=NULL, $system=NULL) {
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global $xw;
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$xw = new XMLWriter();
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$xw->openURI('php://output');
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$xw->setIndent(true);
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$xw->startDocument('1.0', 'UTF-8');
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if ($doc) {
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$xw->writeDTD($doc, $public, $system);
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}
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}
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function common_end_xml() {
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global $xw;
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$xw->endDocument();
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$xw->flush();
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}
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function common_show_header($pagetitle, $callable=NULL, $data=NULL) {
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global $config, $xw;
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header('Content-Type: application/xhtml+xml');
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common_start_xml('html',
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'-//W3C//DTD XHTML 1.0 Strict//EN',
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'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
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# FIXME: correct language for interface
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common_element_start('html', array('xmlns' => 'http://www.w3.org/1999/xhtml',
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'xml:lang' => 'en',
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'lang' => 'en'));
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common_element_start('head');
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common_element('title', NULL,
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$pagetitle . " - " . $config['site']['name']);
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common_element('link', array('rel' => 'stylesheet',
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'type' => 'text/css',
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'href' => common_path('theme/default/style/html.css'),
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'media' => 'screen, projection, tv'));
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common_element('link', array('rel' => 'stylesheet',
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'type' => 'text/css',
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'href' => common_path('theme/default/style/layout.css'),
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'media' => 'screen, projection, tv'));
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common_element('link', array('rel' => 'stylesheet',
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'type' => 'text/css',
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'href' => common_path('theme/default/style/print.css'),
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'media' => 'print'));
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if ($callable) {
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if ($data) {
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call_user_func($callable, $data);
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} else {
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call_user_func($callable);
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}
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}
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common_element_end('head');
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common_element_start('body');
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common_element_start('div', array('id' => 'wrapper'));
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common_element_start('div', array('id' => 'content'));
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common_element_start('div', array('id' => 'header'));
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common_element('h1', 'title', $pagetitle);
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common_element('h2', 'subtitle', $config['site']['name']);
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common_element_end('div');
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common_head_menu();
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common_element_start('div', array('id' => 'page'));
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}
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function common_show_footer() {
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global $xw, $config;
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common_element_start('div', 'footer');
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common_foot_menu();
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common_license_block();
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common_element_end('div');
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common_element_end('div');
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common_element_end('div');
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common_element_end('div');
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common_element_end('body');
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common_element_end('html');
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common_end_xml();
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}
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function common_text($txt) {
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global $xw;
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$xw->text($txt);
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}
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function common_raw($xml) {
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global $xw;
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$xw->writeRaw($xml);
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}
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function common_license_block() {
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global $config, $xw;
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common_element_start('p', 'license greenBg');
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common_element_start('span', 'floatLeft width25');
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common_element_start('a', array('class' => 'license',
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'rel' => 'license',
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href => $config['license']['url']));
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common_element('img', array('class' => 'license',
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'src' => $config['license']['image'],
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'alt' => $config['license']['title']));
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common_element_end('a');
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common_element_end('span');
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common_element_start('span', 'floatRight width75');
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common_text(_t('Unless otherwise specified, contents of this site are copyright by the contributors and available under the '));
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common_element('a', array('class' => 'license',
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'rel' => 'license',
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href => $config['license']['url']),
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$config['license']['title']);
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common_text(_t('. Contributors should be attributed by full name or nickname.'));
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common_element_end('span');
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common_element_end('p');
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}
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function common_head_menu() {
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$user = common_current_user();
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common_element_start('ul', array('id' => 'menu', 'class' => ($user) ? 'five' : 'three'));
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common_menu_item(common_local_url('public'), _t('Public'));
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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 menuish');
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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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common_menu_item(common_local_url('doc', array('title' => 'source')),
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_t('Source'));
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common_element_end('ul');
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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, $value=NULL) {
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common_element_start('p');
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common_element('label', array('for' => $id), $label);
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$attrs = array('name' => $id,
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'type' => 'text',
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'id' => $id);
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if ($value) {
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$attrs['value'] = htmlspecialchars($value);
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}
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common_element('input', $attrs);
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common_element_end('p');
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}
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function common_hidden($id, $value) {
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common_element('input', array('name' => $id,
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'type' => 'hidden',
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'id' => $id,
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'value' => $value));
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}
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function common_password($id, $label) {
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common_element_start('p');
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common_element('label', array('for' => $id), $label);
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$attrs = array('name' => $id,
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'type' => 'password',
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'id' => $id);
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common_element('input', $attrs);
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common_element_end('p');
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}
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function common_submit($id, $label) {
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global $xw;
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common_element_start('p');
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common_element_start('label', array('for' => $id));
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$xw->writeRaw(' ');
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common_element_end('label');
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common_element('input', array('type' => 'submit',
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'id' => $id,
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'name' => $id,
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'value' => $label,
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'class' => 'button'));
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common_element_end('p');
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}
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function common_textarea($id, $label, $content=NULL) {
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common_element_start('p');
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common_element('label', array('for' => $id), $label);
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common_element('textarea', array('rows' => 3,
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'cols' => 40,
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'name' => $id,
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'id' => $id,
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'class' => 'width50'),
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($content) ? $content : ' ');
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common_element_end('p');
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}
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# salted, hashed passwords are stored in the DB
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function common_munge_password($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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common_ensure_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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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 $nickname;
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}
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# get canonical version of email for comparison
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function common_canonical_email($email) {
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# XXX: canonicalize UTF-8
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# XXX: lcase the domain part
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return $email;
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}
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define('URL_REGEX', '^|[ \t\r\n])((ftp|http|https|gopher|mailto|news|nntp|telnet|wais|file|prospero|aim|webcal):(([A-Za-z0-9$_.+!*(),;/?:@&~=-])|%[A-Fa-f0-9]{2}){2,}(#([a-zA-Z0-9][a-zA-Z0-9$_.+!*(),;/?:@&~=%-]*))?([A-Za-z0-9$_+!*();/?:~-]))');
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function common_render_content($text, $notice) {
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$r = htmlspecialchars($text);
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$id = $notice->profile_id;
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$r = preg_replace('@https?://\S+@', '<a href="\0" class="extlink">\0</a>', $r);
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$r = preg_replace('/(^|\b)@([\w-]+)($|\b)/e', "'\\1@'.common_at_link($id, '\\2').'\\3'", $r);
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# XXX: # tags
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# XXX: machine tags
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return $r;
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}
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function common_at_link($sender_id, $nickname) {
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# Try to find profiles this profile is subscribed to that have this nickname
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$recipient = new Profile();
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# XXX: chokety and bad
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$recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.$sender_id.' and subscribed = id)', 'AND');
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$recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
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if ($recipient->find(TRUE)) {
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return '<a href="'.htmlspecialchars($recipient->profileurl).'" class="atlink tolistenee">'.$nickname.'</a>';
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}
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# Try to find profiles that listen to this profile and that have this nickname
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$recipient = new Profile();
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# XXX: chokety and bad
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$recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.$sender_id.' and subscriber = id)', 'AND');
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$recipient->whereAdd('nickname = "' . trim($nickname) . '"', 'AND');
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if ($recipient->find(TRUE)) {
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return '<a href="'.htmlspecialchars($recipient->profileurl).'" class="atlink tolistener">'.$nickname.'</a>';
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}
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# If this is a local user, try to find a local user with that nickname.
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$sender = User::staticGet($sender_id);
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if ($sender) {
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$recipient_user = User::staticGet('nickname', $nickname);
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if ($recipient_user) {
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$recipient = $recipient->getProfile();
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return '<a href="'.htmlspecialchars($recipient->profileurl).'" class="atlink usertouser">'.$nickname.'</a>';
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}
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}
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# Otherwise, no links. @messages from local users to remote users,
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# or from remote users to other remote users, are just
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# outside our ability to make intelligent guesses about
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return $nickname;
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}
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// where should the avatar go for this user?
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function common_avatar_filename($id, $extension, $size=NULL, $extra=NULL) {
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global $config;
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if ($size) {
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return $id . '-' . $size . (($extra) ? ('-' . $extra) : '') . $extension;
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} else {
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return $id . '-original' . (($extra) ? ('-' . $extra) : '') . $extension;
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}
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}
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function common_avatar_path($filename) {
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global $config;
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return INSTALLDIR . '/avatar/' . $filename;
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}
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function common_avatar_url($filename) {
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return common_path('avatar/'.$filename);
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}
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function common_default_avatar($size) {
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static $sizenames = array(AVATAR_PROFILE_SIZE => 'profile',
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AVATAR_STREAM_SIZE => 'stream',
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AVATAR_MINI_SIZE => 'mini');
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global $config;
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return common_path($config['avatar']['default'][$sizenames[$size]]);
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}
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function common_local_url($action, $args=NULL) {
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global $config;
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if ($config['site']['fancy']) {
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return common_fancy_url($action, $args);
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} else {
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return common_simple_url($action, $args);
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}
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}
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function common_fancy_url($action, $args=NULL) {
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switch (strtolower($action)) {
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case 'public':
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return common_path('');
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case 'publicrss':
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return common_path('rss');
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case 'doc':
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return common_path('doc/'.$args['title']);
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case 'login':
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case 'logout':
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case 'register':
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case 'subscribe':
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case 'unsubscribe':
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return common_path('main/'.$action);
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case 'avatar':
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|
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 'subscriptions':
|
|
case 'subscribed':
|
|
case 'xrds':
|
|
case 'all':
|
|
case 'foaf':
|
|
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':
|
|
return common_path($args['nickname']);
|
|
default:
|
|
return common_simple_url($action, $args);
|
|
}
|
|
}
|
|
|
|
function common_simple_url($action, $args=NULL) {
|
|
global $config;
|
|
/* XXX: pretty URLs */
|
|
$extra = '';
|
|
if ($args) {
|
|
foreach ($args as $key => $value) {
|
|
$extra .= "&${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'].'/'.$pathpart.$relative;
|
|
}
|
|
|
|
function common_date_string($dt) {
|
|
// XXX: do some sexy date formatting
|
|
// return date(DATE_RFC822, $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",
|
|
303 => "See Other",
|
|
307 => "Temporary Redirect");
|
|
header("Status: ${code} $status[$code]");
|
|
header("Location: $url");
|
|
common_element('a', array('href' => $url), $url);
|
|
}
|
|
|
|
function common_broadcast_notice($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($notice);
|
|
}
|
|
// XXX: broadcast notices to Jabber
|
|
// XXX: broadcast notices to SMS
|
|
// XXX: broadcast notices to other IM
|
|
return true;
|
|
}
|
|
|
|
|
|
function common_profile_url($nickname) {
|
|
return common_local_url('showstream', array('nickname' => $nickname));
|
|
}
|
|
|
|
function common_notice_form() {
|
|
common_element_start('form', array('id' => 'newnotice', 'method' => 'POST',
|
|
'action' => common_local_url('newnotice')));
|
|
common_textarea('noticecontent', _t('What\'s up?'));
|
|
common_submit('submit', _t('Send'));
|
|
common_element_end('form');
|
|
}
|
|
|
|
function common_mint_tag($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;
|
|
}
|