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http package (only partially working)

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This commit is contained in:
Vítor Santos Costa
2010-06-23 11:52:34 +01:00
parent 6e956b879a
commit 4694a50fa5
98 changed files with 20952 additions and 4 deletions
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packages/http/http_server_files.pl Normal file
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/* Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: J.Wielemaker@cs.vu.nl
WWW: http://www.swi-prolog.org
Copyright (C): 2009, 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(http_server_files,
[ serve_files_in_directory/2 % +Alias, +HTTPRequest
]).
:- use_module(library(http/http_path)).
:- use_module(library(http/http_dispatch)).
/** <module> Serve files needed by modules from the server
This module provides an infrastructure for serving resource-files such
as icons, JavaScript, CSS files, etc. The default configuration serves
the HTTP locations =icons=, =css= and =js= (see
http_absolute_location/3)
The location for these services can be changed by adding rules for
http:location/3. Directories providing additional or alternative
resources can be achieved by adding rules for user:file_search_path/2.
*/
:- multifile
http:location/3. % Alias, Expansion, Options
:- dynamic
http:location/3. % Alias, Expansion, Options
http:location(icons, root(icons), [ priority(-100) ]).
http:location(css, root(css), [ priority(-100) ]).
http:location(js, root(js), [ priority(-100) ]).
:- multifile
user:file_search_path/2.
:- dynamic
user:file_search_path/2.
user:file_search_path(icons, library('http/web/icons')).
user:file_search_path(css, library('http/web/css')).
user:file_search_path(js, library('http/web/js')).
:- http_handler(icons(.), serve_files_in_directory(icons), [prefix]).
:- http_handler(css(.), serve_files_in_directory(css), [prefix]).
:- http_handler(js(.), serve_files_in_directory(js), [prefix]).
%% serve_files_in_directory(+Alias, +Request)
%
% Serve files from the directory Alias from the path-info from
% Request. This predicate is used together with
% file_search_path/2. Note that multiple clauses for the same
% file_search_path alias can be used to merge files from different
% physical locations onto the same HTTP directory. Note that the
% handler must be declared as =prefix=. Here is an example:
%
% ==
% user:file_search_path(icons, library('http/web/icons')).
%
% :- http_handler(icons(.), serve_files_in_directory(icons), [prefix]).
% ==
%
% @see http_reply_file/3
serve_files_in_directory(Alias, Request) :-
memberchk(path_info(PathInfo), Request),
Term =.. [Alias,PathInfo],
http_reply_file(Term, [], Request).