9c44bc5fe5
The basic building block is here with the feed of the timeline, it is rather easy to add the feed other elements based on this work. This will require iterations and polishing.
259 lines
8.2 KiB
PHP
259 lines
8.2 KiB
PHP
<?php
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/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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# ***** BEGIN LICENSE BLOCK *****
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# This file is part of InDefero, an open source project management application.
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# Copyright (C) 2008 Céondo Ltd and contributors.
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#
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# InDefero is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# InDefero 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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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# ***** END LICENSE BLOCK ***** */
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class IDF_Precondition
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{
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/**
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* Check if the user has a base authorization to access a given
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* tab. This used in the case of private project. You need to
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* further control with the accessSource, accessIssues,
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* etc. preconditions.
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*
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* @param Pluf_HTTP_Request
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* @return mixed
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*/
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static public function baseAccess($request)
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{
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if (!$request->project->private) {
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return true;
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}
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if ($request->user->hasPerm('IDF.project-authorized-user', $request->project)) {
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return true;
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}
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return self::projectMemberOrOwner($request);
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}
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/**
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* Check if the user is project owner.
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*
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* @param Pluf_HTTP_Request
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* @return mixed
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*/
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static public function projectOwner($request)
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{
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$res = Pluf_Precondition::loginRequired($request);
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if (true !== $res) {
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return $res;
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}
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if ($request->user->hasPerm('IDF.project-owner', $request->project)) {
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return true;
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}
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return new Pluf_HTTP_Response_Forbidden($request);
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}
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/**
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* Check if the user is project owner or member.
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*
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* @param Pluf_HTTP_Request
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* @return mixed
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*/
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static public function projectMemberOrOwner($request)
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{
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$res = Pluf_Precondition::loginRequired($request);
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if (true !== $res) {
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return $res;
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}
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if ($request->user->hasPerm('IDF.project-owner', $request->project)
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or
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$request->user->hasPerm('IDF.project-member', $request->project)
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) {
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return true;
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}
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return new Pluf_HTTP_Response_Forbidden($request);
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}
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/**
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* Check if the user can access a given element.
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*
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* The rights are:
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* - 'all' (default)
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* - 'none'
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* - 'login'
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* - 'members'
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* - 'owners'
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*
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* The order of the rights is such that a 'owner' is also a
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* 'member' and of course a logged in person.
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*
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* @param Pluf_HTTP_Request
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* @param string Control key
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* @return mixed
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*/
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static public function accessTabGeneric($request, $key)
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{
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switch ($request->conf->getVal($key, 'all')) {
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case 'none':
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return new Pluf_HTTP_Response_Forbidden($request);
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case 'login':
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return Pluf_Precondition::loginRequired($request);
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case 'members':
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return self::projectMemberOrOwner($request);
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case 'owners':
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return self::projectOwner($request);
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case 'all':
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default:
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return true;
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}
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}
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static public function accessSource($request)
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{
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$res = self::baseAccess($request);
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if (true !== $res) {
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return $res;
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}
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return self::accessTabGeneric($request, 'source_access_rights');
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}
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static public function accessIssues($request)
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{
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$res = self::baseAccess($request);
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if (true !== $res) {
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return $res;
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}
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return self::accessTabGeneric($request, 'issues_access_rights');
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}
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static public function accessDownloads($request)
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{
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$res = self::baseAccess($request);
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if (true !== $res) {
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return $res;
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}
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return self::accessTabGeneric($request, 'downloads_access_rights');
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}
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static public function accessWiki($request)
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{
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$res = self::baseAccess($request);
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if (true !== $res) {
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return $res;
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}
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return self::accessTabGeneric($request, 'wiki_access_rights');
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}
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static public function accessReview($request)
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{
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$res = self::baseAccess($request);
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if (true !== $res) {
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return $res;
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}
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return self::accessTabGeneric($request, 'review_access_rights');
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}
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/**
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* Based on the request, it is automatically setting the user.
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*
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* API calls are not translated.
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*/
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static public function apiSetUser($request)
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{
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// REQUEST is used to be used both for POST and GET requests.
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if (!isset($request->REQUEST['_hash'])
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or !isset($request->REQUEST['_login'])
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or !isset($request->REQUEST['_salt'])) {
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// equivalent to anonymous access.
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return true;
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}
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$db =& Pluf::db();
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$true = Pluf_DB_BooleanToDb(true, $db);
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$sql = new Pluf_SQL('login=%s AND active='.$true,
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$request->REQUEST['_login']);
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$users = Pluf::factory('Pluf_User')->getList(array('filter'=>$sql->gen()));
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if ($users->count() != 1 or !$users[0]->active) {
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// Should return a special authentication error like user
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// not found.
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return true;
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}
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$hash = sha1($request->REQUEST['_salt'].sha1($users[0]->password));
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if ($hash != $request->REQUEST['_hash']) {
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return true; // Again need authentication error
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}
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$request->user = $users[0];
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IDF_Middleware::setRights($request);
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return true;
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}
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/**
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* Based on the request, it is automatically setting the user.
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*
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* Authenticated feeds have a token set at the end of the url in
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* the for of 'authenticated/url/token/234092384023woeiur/'. If
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* you remove 'token/234092384023woeiur/' the url is not
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* authenticated.
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*
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* If the user is already logged in and not anonymous and no token
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* is given, then the user is unset and a non authenticated user
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* is loaded. This is to avoid people to not understand why a
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* normally not authenticated feed is providing authenticated
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* data.
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*/
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static public function feedSetUser($request)
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{
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if (!isset($request->project)) {
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return true; // we do not act on non project pages at the
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// moment.
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}
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if (!$request->user->isAnonymous()) {
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// by default anonymous
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$request->user = new Pluf_User();
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IDF_Middleware::setRights($request);
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}
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$match = array();
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if (!preg_match('#/token/([^/]+)/$#', $request->query, $match)) {
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return true; // anonymous
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}
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$token = $match[1];
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$hash = substr($token, 0, 2);
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$encrypted = substr($token, 2);
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if ($hash != substr(md5(Pluf::f('secret_key').$encrypted), 0, 2)) {
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return true; // no match in the hash, anonymous
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}
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$cr = new Pluf_Crypt(md5(Pluf::f('secret_key')));
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list($userid, $projectid) = split(':', $cr->decrypt($encrypted), 2);
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if ($projectid != $request->project->id) {
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return true; // anonymous
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}
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$user = new Pluf_User($userid);
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if (!$user->active) {
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return true; // anonymous
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}
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$request->user = $user;
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IDF_Middleware::setRights($request);
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return true;
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}
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/**
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* Generate the token for the feed.
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*
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* @param IDF_Project
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* @param Pluf_User
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* @return string Token
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*/
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static public function genFeedToken($project, $user)
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{
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$cr = new Pluf_Crypt(md5(Pluf::f('secret_key')));
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$encrypted = trim($cr->encrypt($user->id.':'.$project->id), '~');
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return substr(md5(Pluf::f('secret_key').$encrypted), 0, 2).$encrypted;
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}
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} |