| <?php␊ | 
| /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */␊ | 
| /*␊ | 
| # ***** BEGIN LICENSE BLOCK *****␊ | 
| # This file is part of InDefero, an open source project management application.␊ | 
| # Copyright (C) 2008 CĂ©ondo Ltd and contributors.␊ | 
| #␊ | 
| # InDefero is free software; you can redistribute it and/or modify␊ | 
| # it under the terms of the GNU General Public License as published by␊ | 
| # the Free Software Foundation; either version 2 of the License, or␊ | 
| # (at your option) any later version.␊ | 
| #␊ | 
| # InDefero is distributed in the hope that it will be useful,␊ | 
| # but WITHOUT ANY WARRANTY; without even the implied warranty of␊ | 
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the␊ | 
| # GNU General Public License for more details.␊ | 
| #␊ | 
| # You should have received a copy of the GNU General Public License␊ | 
| # along with this program; if not, write to the Free Software␊ | 
| # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA␊ | 
| #␊ | 
| # ***** END LICENSE BLOCK ***** */␊ | 
| ␊ | 
| class IDF_Views_Source_Precondition␊ | 
| {␊ | 
| /**␊ | 
| * Ensures that the configured SCM for the project is available␊ | 
| *␊ | 
| * @param $request␊ | 
| * @return true | Pluf_HTTP_Response_Redirect␊ | 
| */␊ | 
| static public function scmAvailable($request)␊ | 
| {␊ | 
| $scm = IDF_Scm::get($request->project);␊ | 
| if (!$scm->isAvailable()) {␊ | 
| $url = Pluf_HTTP_URL_urlForView('IDF_Views_Source::help',␊ | 
| array($request->project->shortname));␊ | 
| return new Pluf_HTTP_Response_Redirect($url);␊ | 
| }␊ | 
| return true;␊ | 
| }␊ | 
| ␊ | 
| /**␊ | 
| * Validates the revision given in the URL path and acts accordingly␊ | 
| *␊ | 
| * @param $request␊ | 
| * @return true | Pluf_HTTP_Response_Redirect␊ | 
| * @throws Exception␊ | 
| */␊ | 
| static public function revisionValid($request)␊ | 
| {␊ | 
| list($url_info, $url_matches) = $request->view;␊ | 
| list(, $project, $commit) = $url_matches;␊ | 
| ␊ | 
| $scm = IDF_Scm::get($request->project);␊ | 
| $res = $scm->validateRevision($commit);␊ | 
| switch ($res) {␊ | 
| case IDF_Scm::REVISION_VALID:␊ | 
| return true;␊ | 
| case IDF_Scm::REVISION_INVALID:␊ | 
| $url = Pluf_HTTP_URL_urlForView('IDF_Views_Source::invalidRevision',␊ | 
| array($request->project->shortname, $commit));␊ | 
| return new Pluf_HTTP_Response_Redirect($url);␊ | 
| case IDF_Scm::REVISION_AMBIGUOUS:␊ | 
| $url = Pluf_HTTP_URL_urlForView('IDF_Views_Source::disambiguateRevision',␊ | 
| array($request->project->shortname,␊ | 
| $commit,␊ | 
| $url_info['model'].'::'.$url_info['method']));␊ | 
| return new Pluf_HTTP_Response_Redirect($url);␊ | 
| default:␊ | 
| throw new Exception('unknown validation result: '. $res);␊ | 
| }␊ | 
| }␊ | 
| }␊ |