X-Git-Url: http://git.euphorik.ch/?p=euphorik.git;a=blobdiff_plain;f=modules%2Ferl%2Feuphorik_requests.erl;h=49cbe026132afa200c3b98e313c0382faf002045;hp=d6d72945ad23f045e34405336a88db3f6f76d376;hb=5d9992368bb386d2e606ae037c5478fe10ac70e8;hpb=7ed3a03bffb4112ee174b05ef1d7b486d6ad6534

diff --git a/modules/erl/euphorik_requests.erl b/modules/erl/euphorik_requests.erl
index d6d7294..49cbe02 100755
--- a/modules/erl/euphorik_requests.erl
+++ b/modules/erl/euphorik_requests.erl
@@ -1,70 +1,89 @@
 % coding: utf-8
-% Ce module est fait pour répondre à des requêtes 'AJAX'.
-% Il est définit comme 'appmods' pour l'url "request" dans yaws.
-% Par exemple http://www.euphorik.ch/request abouti sur la fonction out() de ce module.
-% @author G.Burri
-
--module(euphorik_requests).
--export([
-   tester/0,
-   out/1
-]).
+% Copyright 2008 Grégory Burri
+%
+% This file is part of Euphorik.
+%
+% Euphorik 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 3 of the License, or
+% (at your option) any later version.
+%
+% Euphorik 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 Euphorik.  If not, see <http://www.gnu.org/licenses/>.
+%
+% This module responds to JSON requests via 'AJAX'.
+% It's defined as an Yaws 'appmods' with the url '/request'.
+% For instance in debug mode 'http://localhost:8090/request' will call the out/1 function.
+
 
--include_lib("xmerl/include/xmerl.hrl").
--include_lib("yaws/include/yaws_api.hrl").
+-module(euphorik_requests).
+-author("Greg Burri <greg.burri@gmail.com>").
+-export([out/1]).
+-include_lib("yaws_api.hrl").
+-include("../include/euphorik_defines.hrl").
 
-% Test du module
-tester() ->
-   
-   %~ {XML2, _} = xmerl_scan:string(
-      %~ "<action name=\"login\">"
-      %~ "  <cookie>5DZQ2HCRO7JIX3QCSWRNL</cookie>"
-      %~ "</action>"),
-   %~ io:format("Login : ~p~n", [euphorik_protocole:login(XML2)]).
-   
-   XML =
-      "<action name=\"refreshMessages\">"
-      "<nombreMessage>2</nombreMessage>"
-      "<page>1</page>"
-      "<conversation><racine>3</racine><page>1</page></conversation>"
-      "</action>",
-   io:format("Messages de la premières page : ~p~n", [traiter_xml(XML)]).
-   
-   %~ traiter_xml("<action name=\"message\">"
-      %~ "<cookie>4UDUSY6Z2IZNTQO484S8X</cookie>"
-      %~ "<pseudo>Pifou</pseudo>"
-      %~ "<contenu>test &amp; plop</contenu>"
-      %~ "</action>").
-
 
-% il faut catcher toutes les exceptions possibles
+% Entry point for all AJAX requests on '/request'.
 out(A) ->
-   %inet:setopts(A#arg.clisock, inet:getopts(A#arg.clisock, [active])),
+   IP = case inet:peername(A#arg.clisock) of
+      {ok, {Address, _Port}} -> Address;
+      _ -> unknown
+   end,
+   % active: to receive {tcp_closed, _} when the socket is closing.
+   % keepalive: avoid firewalls to cut the connection.
+
+   inet:setopts(A#arg.clisock, [{active, true}, {keepalive, true}]),
    {value, {_, Contenu}} = lists:keysearch("action", 1, yaws_api:parse_post(A)),
-   Ret = traiter_xml(Contenu),
-   {content, "text/xml", Ret}.
-
 
-traiter_xml(Contenu) ->
-   {XML, _} = xmerl_scan:string(Contenu),
-   traiter_action(XML#xmlElement.attributes, XML).
-   
-
-% un client s'enregistre (pseudo + password)
-traiter_action([#xmlAttribute{value="register"}], XML) ->
-   euphorik_protocole:nouveau_user_login(XML); 
-% authentification d'un client
-traiter_action([#xmlAttribute{value="login"}], XML) ->
-   euphorik_protocole:login(XML); 
-% modification du profile
-traiter_action([#xmlAttribute{value="profile"}], XML) ->
-   euphorik_protocole:profile(XML); 
-% un utilisateur demande les messages
-traiter_action([#xmlAttribute{value="refreshMessages"}], XML) ->
- euphorik_protocole:refreshMessage(XML); 
-% un utilisateur envoie un message
-traiter_action([#xmlAttribute{value="message"}], XML) ->
-   euphorik_protocole:message(XML).
- 
-
+   Ret = traiter_message(Contenu, IP),
+   {content, "application/json", Ret}.
+
+
+% Décode le message JSON.
+traiter_message(Contenu, IP) ->
+   % extrait l'entête obligatoire des messages JSON
+   {ok, {struct, [{"header", {struct, [{"action", Action}, {"version", Version_client}]}} | Reste]}} = json2:decode_string(Contenu),
+
+   json2:encode(
+      if Version_client =:= ?VERSION_PROTOCOLE ->
+            traiter_action(Action, Reste, IP);
+         true ->
+            euphorik_protocole:erreur(lists:flatten(io_lib:format(
+               "La version du protocole du client (~w) ne correspond à celle du serveur (~w)", [Version_client, ?VERSION_PROTOCOLE]
+            )))
+      end
+   ).
+
 
+% Authentification d'un client.
+traiter_action("authentification", JSON, IP) ->
+   euphorik_protocole:login(JSON, IP);
+% Un client s'enregistre : (pseudo + password) ou de manière anonyme.
+traiter_action("register", JSON, IP) ->
+   euphorik_protocole:register(JSON, IP);
+% Modification du profile.
+traiter_action("set_profile", JSON, _) ->
+   euphorik_protocole:profile(JSON);
+% Un utilisateur attend un événement (par exemple l'arrivée d'un nouveau message).
+traiter_action("wait_event", JSON, _) ->
+   euphorik_protocole:wait_event(JSON);
+% Un utilisateur envoie un message.
+traiter_action("put_message", JSON, _) ->
+   euphorik_protocole:put_message(JSON);
+% Un ekMaster bannie un utilisateur (ip).
+traiter_action("ban", JSON, _) ->
+   euphorik_protocole:ban(JSON);
+% Un ekMaster slap un utilisateur.
+traiter_action("slap", JSON, _) ->
+   euphorik_protocole:slap(JSON);
+% Un ekMaster demande la liste des ips bannies.
+traiter_action("list_banned_ips", JSON, _) ->
+   euphorik_protocole:list_banned_ips(JSON);
+% Un ekMaster débannie une ip.
+traiter_action("unban", JSON, _) ->
+   euphorik_protocole:unban_ip(JSON).