338 lines
11 KiB
PHP
338 lines
11 KiB
PHP
<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social 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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// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Main GNU social entry point
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*
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* @package GNUsocial
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* @author Brenda Wallace <shiny@cpan.org>
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* @author Brion Vibber <brion@pobox.com>
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* @author Brion Vibber <brion@status.net>
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* @author Christopher Vollick <candrews@integralblue.com>
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* @author CiaranG <ciaran@ciarang.com>
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Craig Andrews <evan@status.net>
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* @author Evan Prodromou <evan@controlezvous.ca>
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @author Evan Prodromou <evan@prodromou.name>
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* @author Evan Prodromou <evan@status.net>
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* @author Gina Haeussge <osd@foosel.net>
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* @author James Walker <walkah@walkah.net>
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* @author Jeffery To <candrews@integralblue.com>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @author Mike Cochrane <mikec@mikenz.geek.nz>
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* @author Robin Millette <millette@controlyourself.ca>
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* @author Sarven Capadisli <csarven@controlyourself.ca>
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* @author Sarven Capadisli <csarven@status.net>
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* @author Siebrand Mazeland <s.mazeland@xs4all.nl>
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* @author Tom Adams <candrews@integralblue.com>
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* @author Tom Adams <tom@holizz.com>
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* @author Zach Copley <zach@status.net>
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @copyright 2019 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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$_startTime = microtime(true);
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$_perfCounters = array();
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// We provide all our dependencies through our own autoload.
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// This will probably be configurable for distributing with
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// system packages (like with Debian apt etc. where included
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// libraries are maintained through repositories)
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set_include_path('.'); // mainly fixes an issue where /usr/share/{pear,php*}/DB/DataObject.php is _old_ on various systems...
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define('INSTALLDIR', dirname(__DIR__));
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define('PUBLICDIR', INSTALLDIR . DIRECTORY_SEPARATOR . 'public');
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define('GNUSOCIAL', true);
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define('STATUSNET', true); // compatibility
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$user = null;
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$action = null;
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function getPath($req)
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{
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$p = null;
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if ((common_config('site', 'fancy') || !array_key_exists('PATH_INFO', $_SERVER))
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&& array_key_exists('p', $req)
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) {
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$p = $req['p'];
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} else if (array_key_exists('PATH_INFO', $_SERVER)) {
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$path = $_SERVER['PATH_INFO'];
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$script = $_SERVER['SCRIPT_NAME'];
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if (substr($path, 0, mb_strlen($script)) == $script) {
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$p = substr($path, mb_strlen($script) + 1);
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} else {
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$p = $path;
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}
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} else {
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$p = null;
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}
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// Trim all initial '/'
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$p = ltrim($p, '/');
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return $p;
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}
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/**
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* logs and then displays error messages
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*
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* @return void
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*/
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function handleError($error)
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{
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try {
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if ($error->getCode() == DB_DATAOBJECT_ERROR_NODATA) {
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return;
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}
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$logmsg = "Exception thrown: " . _ve($error->getMessage());
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if ($error instanceof PEAR_Exception && common_config('log', 'debugtrace')) {
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$logmsg .= " PEAR: ". $error->toText();
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}
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// DB queries often end up with a lot of newlines; merge to a single line
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// for easier grepability...
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$logmsg = str_replace("\n", " ", $logmsg);
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common_log(LOG_ERR, $logmsg);
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// @fixme backtrace output should be consistent with exception handling
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if (common_config('log', 'debugtrace')) {
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$bt = $error->getTrace();
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foreach ($bt as $n => $line) {
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common_log(LOG_ERR, formatBacktraceLine($n, $line));
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}
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}
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if ($error instanceof DB_DataObject_Error
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|| $error instanceof DB_Error
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|| ($error instanceof PEAR_Exception && $error->getCode() == -24)
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) {
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//If we run into a DB error, assume we can't connect to the DB at all
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//so set the current user to null, so we don't try to access the DB
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//while rendering the error page.
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global $_cur;
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$_cur = null;
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$msg = sprintf(
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// TRANS: Database error message.
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_('The database for %1$s is not responding correctly, '.
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'so the site will not work properly. '.
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'The site admins probably know about the problem, '.
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'but you can contact them at %2$s to make sure. '.
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'Otherwise, wait a few minutes and try again.'
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),
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common_config('site', 'name'),
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common_config('site', 'email')
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);
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$erraction = new DBErrorAction($msg, 500);
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} elseif ($error instanceof ClientException) {
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$erraction = new ClientErrorAction($error->getMessage(), $error->getCode());
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} elseif ($error instanceof ServerException) {
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$erraction = new ServerErrorAction($error->getMessage(), $error->getCode(), $error);
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} else {
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// If it wasn't specified more closely which kind of exception it was
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$erraction = new ServerErrorAction($error->getMessage(), 500, $error);
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}
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$erraction->showPage();
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} catch (Exception $e) {
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// TRANS: Error message.
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echo _('An error occurred.');
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exit(-1);
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}
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exit(-1);
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}
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set_exception_handler('handleError');
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// quick check for fancy URL auto-detection support in installer.
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if (preg_replace("/\?.+$/", "", $_SERVER['REQUEST_URI']) === preg_replace("/^\/$/", "", (dirname($_SERVER['REQUEST_URI']))) . '/check-fancy') {
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die("Fancy URL support detection succeeded. We suggest you enable this to get fancy (pretty) URLs.");
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}
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require_once INSTALLDIR . '/lib/util/common.php';
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/**
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* Format a backtrace line for debug output roughly like debug_print_backtrace() does.
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* Exceptions already have this built in, but PEAR error objects just give us the array.
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*
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* @param int $n line number
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* @param array $line per-frame array item from debug_backtrace()
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* @return string
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*/
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function formatBacktraceLine($n, $line)
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{
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$out = "#$n ";
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if (isset($line['class'])) $out .= $line['class'];
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if (isset($line['type'])) $out .= $line['type'];
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if (isset($line['function'])) $out .= $line['function'];
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$out .= '(';
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if (isset($line['args'])) {
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$args = array();
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foreach ($line['args'] as $arg) {
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// debug_print_backtrace seems to use var_export
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// but this gets *very* verbose!
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$args[] = gettype($arg);
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}
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$out .= implode(',', $args);
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}
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$out .= ')';
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$out .= ' called at [';
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if (isset($line['file'])) $out .= $line['file'];
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if (isset($line['line'])) $out .= ':' . $line['line'];
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$out .= ']';
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return $out;
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}
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function setupRW()
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{
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global $config;
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static $alwaysRW = array('session', 'remember_me');
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$rwdb = $config['db']['database'];
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if (Event::handle('StartReadWriteTables', array(&$alwaysRW, &$rwdb))) {
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// We ensure that these tables always are used
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// on the master DB
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$config['db']['database_rw'] = $rwdb;
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$config['db']['ini_rw'] = INSTALLDIR.'/classes/statusnet.ini';
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foreach ($alwaysRW as $table) {
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$config['db']['table_'.$table] = 'rw';
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}
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Event::handle('EndReadWriteTables', array($alwaysRW, $rwdb));
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}
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return;
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}
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function isLoginAction($action)
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{
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static $loginActions = array('login', 'recoverpassword', 'api', 'doc', 'register', 'publicxrds', 'otp', 'opensearch', 'rsd');
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$login = null;
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if (Event::handle('LoginAction', array($action, &$login))) {
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$login = in_array($action, $loginActions);
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}
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return $login;
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}
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function main()
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{
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global $user, $action;
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if (!_have_config()) {
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$msg = sprintf(
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// TRANS: Error message displayed when there is no StatusNet configuration file.
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_("No configuration file found. Try running ".
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"the installation program first."
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)
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);
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$sac = new ServerErrorAction($msg);
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$sac->showPage();
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return;
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}
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// Make sure RW database is setup
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setupRW();
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// XXX: we need a little more structure in this script
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// get and cache current user (may hit RW!)
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$user = common_current_user();
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// initialize language env
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common_init_language();
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$path = getPath($_REQUEST);
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$r = Router::get();
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$args = $r->map($path);
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// If the request is HTTP and it should be HTTPS...
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if (GNUsocial::useHTTPS() && !GNUsocial::isHTTPS()) {
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common_redirect(common_local_url($args['action'], $args));
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}
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$args = array_merge($args, $_REQUEST ?: []);
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Event::handle('ArgsInitialize', array(&$args));
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$action = basename($args['action']);
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if (!$action || !preg_match('/^[a-zA-Z0-9_-]*$/', $action)) {
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common_redirect(common_local_url('public'));
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}
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// If the site is private, and they're not on one of the "public"
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// parts of the site, redirect to login
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if (!$user && common_config('site', 'private')
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&& !isLoginAction($action)
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&& !preg_match('/rss$/', $action)
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&& $action != 'robotstxt'
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&& !preg_match('/^Api/', $action)) {
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// set returnto
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$rargs =& common_copy_args($args);
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unset($rargs['action']);
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if (common_config('site', 'fancy')) {
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unset($rargs['p']);
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}
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if (array_key_exists('submit', $rargs)) {
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unset($rargs['submit']);
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}
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foreach (array_keys($_COOKIE) as $cookie) {
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unset($rargs[$cookie]);
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}
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common_set_returnto(common_local_url($action, $rargs));
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common_redirect(common_local_url('login'));
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}
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$action_class = ucfirst($action).'Action';
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if (!class_exists($action_class)) {
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// TRANS: Error message displayed when trying to perform an undefined action.
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throw new ClientException(_('Unknown action'), 404);
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}
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call_user_func("$action_class::run", $args);
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}
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main();
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// XXX: cleanup exit() calls or add an exit handler so
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// this always gets called
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Event::handle('CleanupModule');
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Event::handle('CleanupPlugin');
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