/* Part of SWI-Prolog Author: Jan Wielemaker E-mail: J.Wielemaker@cs.vu.nl WWW: http://www.swi-prolog.org Copyright (C): 2009-2011, VU University Amsterdam This program 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. This program 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 library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA As a special exception, if you link this library with other files, compiled with a Free Software compiler, to produce an executable, this library does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. */ :- module(gitweb, []). :- use_module(library(http/http_dispatch)). :- use_module(library(http/html_write)). :- use_module(library(apply)). :- use_module(library(url)). :- use_module(library(debug)). :- use_module(http_cgi). /** Provide gitweb support @tbd Also serve the GIT repository over this gateway @tbd Better way to locate the GIT project root */ :- if(true). :- http_handler(root('git'), github, []). :- http_handler(root('git/'), github, [ prefix, spawn(cgi) ]). :- http_handler(root('home/pl/git/'), github, [prefix, spawn(download)]). github(_Request) :- reply_html_page( git(github), title('SWI-Prolog git services moved to github'), \github). github --> html({|html||

The SWI-Prolog source repository has been moved to GitHub. |}). :- multifile plweb:page_title//1. plweb:page_title(git(github)) --> html('SWI-Prolog git services moved to github'). :- else. :- http_handler(root('git'), gitroot, []). :- http_handler(root('git/'), gitweb, [ prefix, spawn(cgi) ]). :- http_handler(root('home/pl/git/'), git_http, [prefix, spawn(download)]). %% gitroot(+Request) is det. % % Some toplevel requests are send to /git, while working inside % the repository asks for /git/. This is a hack to work around % these problems. gitroot(Request) :- http_location_by_id(gitroot, Me), atom_concat(Me, /, NewPath), include(local, Request, Parts), http_location([path(NewPath)|Parts], Moved), throw(http_reply(moved(Moved))). local(search(_)). local(fragment(_)). %% gitweb(+Request) % % Call gitweb script gitweb(Request) :- memberchk(path(Path), Request), file_base_name(Path, Base), resource_file(Base, File), !, debug(gitweb, 'Sending resource ~q', [File]), http_reply_file(File, [], Request). gitweb(Request) :- absolute_file_name(gitweb('gitweb.cgi'), ScriptPath, [ access(execute) ]), http_run_cgi(ScriptPath, [], Request). resource_file('gitweb.css', gitweb('static/gitweb.css')). resource_file('gitweb.js', gitweb('static/gitweb.js')). resource_file('git-logo.png', gitweb('static/git-logo.png')). resource_file('git-favicon.png', gitweb('static/git-favicon.png')). :- multifile http_cgi:environment/2. http_cgi:environment('PROJECT_ROOT', Root) :- % gitweb git_project_root(Root). http_cgi:environment('GIT_PROJECT_ROOT', Root) :- % git-http git_project_root(Root). http_cgi:environment('GITWEB_CONFIG', Config) :- absolute_file_name(gitweb('gitweb.conf'), Config, [ access(read) ]). http_cgi:environment('PATH', '/bin:/usr/bin:/usr/local/bin'). git_project_root(Root) :- absolute_file_name(plgit(.), RootDir, [ access(read), file_type(directory) ]), atom_concat(RootDir, /, Root), debug(gitweb, 'PROJECT_ROOT = ~q', [Root]). %% git_http(+Request) is det. % % Server files from the git tree to make this work: % % == % git clone http://www.swi-prolog.org/nl/home/pl/git/pl.git % == % % The comment "git http-backend" does not provide much meaningful % info when accessed from a browser. Therefore we run "git % http-backend" only if w think this the request comes from a git % backend. Otherwise we redirect to the gitweb page. git_http(Request) :- ( memberchk(method(post), Request) ; memberchk(search(Search), Request), memberchk(service=_, Search) ; memberchk(user_agent(Agent), Request), sub_atom(Agent, 0, _, _, git) ), !, http_run_cgi(path(git), [ argv(['http-backend']), transfer_encoding(chunked), buffer(line) ], Request). git_http(Request) :- memberchk(request_uri(URI), Request), atom_concat('/home/pl', GitWebURI, URI), throw(http_reply(see_other(GitWebURI))). :- endif.