modules/erl/euphorik_protocole.erl

   1 % coding: utf-8
   2 % Copyright 2008 Grégory Burri
   3 %
   4 % This file is part of Euphorik.
   5 %
   6 % Euphorik is free software: you can redistribute it and/or modify
   7 % it under the terms of the GNU General Public License as published by
   8 % the Free Software Foundation, either version 3 of the License, or
   9 % (at your option) any later version.
  10 %
  11 % Euphorik is distributed in the hope that it will be useful,
  12 % but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 % GNU General Public License for more details.
  15 %
  16 % You should have received a copy of the GNU General Public License
  17 % along with Euphorik.  If not, see <http://www.gnu.org/licenses/>.
  18 %
  19 % Ce module gére les différents messages envoyés par le client (javascript) via AJAX.
  20 % Les messages donnés ainsi que les réponses sont au format JSON.
  21 % @author G.Burri
  22
  23
  24 -module(euphorik_protocole).
  25 -export([
  26    register/2,
  27    login/2,
  28    logout/1,
  29    profile/1,
  30    wait_event/1,
  31    put_message/1,
  32    ban/1,
  33    slap/1,
  34    put_troll/1,
  35    mod_troll/1,
  36    del_troll/1,
  37    unban_ip/1,
  38    list_banned_ips/1,
  39    erreur/1
  40 ]).
  41 -include("../include/euphorik_bd.hrl").
  42 -include("../include/euphorik_defines.hrl").
  43
  44
  45 % Une utilisateur s'enregistre avec un tuple {Login, Password}.
  46 register([{login, Login}, {password, Password}], IP) ->
  47    Can_register = euphorik_bd:can_register(IP),
  48    if Can_register ->
  49          case euphorik_bd:user_by_login(Login) of
  50             {ok, _} ->
  51                erreur("Login déjà existant");
  52             _ ->
  53                User = euphorik_bd:nouveau_user(Login, Password, generer_cookie()),
  54                euphorik_bd:update_ip(User#user.id, IP),
  55                json_reponse_login_ok(User)
  56          end;
  57       true ->
  58          erreur_register_flood()
  59    end;
  60 % Enregistrement sans {Login, Password}
  61 register([], IP) ->
  62    Can_register = euphorik_bd:can_register(IP),
  63    if Can_register ->
  64          User = euphorik_bd:nouveau_user("<nick>", generer_cookie()),
  65          euphorik_bd:update_ip(User#user.id, IP),
  66          json_reponse_login_ok(User);
  67       true ->
  68          erreur_register_flood()
  69    end.
  70
  71 erreur_register_flood() ->
  72    erreur("Trop de register (flood)").
  73
  74
  75 % Un utilisateur se logge (avec un couple {login, mot de passe})
  76 login([{login, Login}, {password, Password}], IP) ->
  77    loginUser(euphorik_bd:user_by_login_password(Login, Password), IP);
  78 % Un utilisateur se logge (avec un cookie)
  79 login([{cookie, Cookie}], IP) ->
  80    loginUser(euphorik_bd:user_by_cookie(Cookie), IP).
  81
  82 loginUser({ok, User}, IP) ->
  83    euphorik_bd:update_ip(User#user.id, IP),
  84    euphorik_bd:update_date_derniere_connexion(User#user.id),
  85    json_reponse_login_ok(User);
  86 loginUser(_, _) ->
  87    % ajoute un délais d'attente
  88    timer:sleep(?TEMPS_ATTENTE_ERREUR_LOGIN),
  89    erreur("Couple login/pass introuvable").
  90
  91
  92 % Renvoie un string() représentant un cookie en base 36. Il y a 10^32 possibillités.
  93 generer_cookie() ->
  94    {A1, A2, A3} = now(),
  95    random:seed(A1, A2, A3),
  96    erlang:integer_to_list(random:uniform(math:pow(10, 32)), 36).
  97
  98
  99 % Un utilisateur se délogge.
 100 logout(_) ->
 101    do_nothing.
 102
 103
 104 % Modification du profile.
 105 profile(
 106    [
 107       {cookie, Cookie},
 108       {login, Login},
 109       {password, Password},
 110       {nick, Pseudo},
 111       {email, Email},
 112       {css, Css},
 113       {nick_format, Nick_format_str},
 114       {view_times, View_times},
 115       {view_tooltips, View_tooltips},
 116       {main_page, Main_page},
 117       {conversations, {array, Conversations_json}}
 118    ]
 119 ) ->
 120    % est-ce que les messages auquel on répond existent ?
 121    Conversations = lists:foldr(
 122       fun({struct, [{root, Root}, {page, Page}]}, Acc) ->
 123          Message_existe = euphorik_bd:message_existe(Root),
 124          if  Message_existe ->
 125             [{Root, Page} | Acc];
 126             true ->
 127                Acc
 128          end
 129       end,
 130       [],
 131       Conversations_json
 132    ),
 133    %  TODO : pas très beau, mieux vaut construire un #user
 134    case euphorik_bd:set_profile(
 135          Cookie,
 136          Login,
 137          Password,
 138          Pseudo,
 139          Email,
 140          Css,
 141          list_to_atom(Nick_format_str),
 142          View_times,
 143          View_tooltips,
 144          Main_page,
 145          Conversations) of
 146       ok ->
 147          json_reponse_ok();
 148       login_deja_pris ->
 149          erreur("Login déjà pris");
 150       _ ->
 151          erreur("Impossible de mettre à jour le profile")
 152    end.
 153
 154
 155 % Renvoie les messages appropriés.
 156 % last_message id et cookie sont facultatifs
 157 wait_event([{page, "chat"} | Data]) ->
 158    % traitement des inputs
 159    Cookie = case lists:keysearch(cookie, 1, Data) of {value, {_, C}} -> C; _ -> inconnu end,
 160    Last_message_id = case lists:keysearch(last_message_id, 1, Data) of {value, {_, Id}} -> Id; _ -> 0 end,
 161    {value, {_, Message_count}} = lists:keysearch(message_count, 1, Data),
 162    Main_page = case lists:keysearch(main_page, 1, Data) of {value, {_, P}} -> P; _ -> 1 end,
 163    Troll_id = case lists:keysearch(troll_id, 1, Data) of {value, {_, T}} -> T; _ -> 0 end,
 164    {value, {_, {array, Conversations_json}}} = lists:keysearch(conversations, 1, Data),
 165    Racines_conversations = lists:map(
 166       fun({struct, [{root, Racine}, {page, Page} | Reste]}) ->
 167          Last_mess_conv  = case Reste of [{last_message_id, L}] -> L; _ -> 0 end,
 168          {Racine, Page, Last_mess_conv}
 169       end,
 170       Conversations_json
 171    ),
 172    User = case euphorik_bd:user_by_cookie(Cookie) of
 173       {ok, U} -> U;
 174       _ -> inconnu
 175    end,
 176    case {mnesia:subscribe({table, minichat, detailed}), mnesia:subscribe({table, troll, detailed})} of
 177       {{error, E}, _} -> E;
 178       {_, {error, E}} -> E;
 179       _ ->
 180          % attente d'événements
 181          R = wait_event_page_chat(User, Racines_conversations, Message_count, Last_message_id, Main_page, Troll_id),
 182          mnesia:unsubscribe({table, minichat, detailed}),
 183          mnesia:unsubscribe({table, troll, detailed}),
 184          R
 185    end;
 186 wait_event([{page, "admin"}, {last_troll, Last_troll}]) ->
 187    case wait_event_page_admin(Last_troll) of
 188       banned_ips_refresh ->
 189          {struct,
 190             [
 191                {reply, "banned_ips_refresh"}
 192             ]
 193          };
 194       {mod, Troll} ->
 195          {struct,
 196             [
 197                {reply, "troll_modified"},
 198                {troll_id, Troll#troll.id},
 199                {content, Troll#troll.content}
 200             ]
 201          };
 202       {add, Trolls} ->
 203          {struct,
 204             [
 205                {reply, "troll_added"},
 206                {trolls, {array,
 207                   lists:map(
 208                      fun(T) ->
 209                         {ok, User} = euphorik_bd:user_by_id(T#troll.id_user),
 210                         {struct,
 211                            [
 212                               {troll_id, T#troll.id},
 213                               {content, T#troll.content},
 214                               {author, User#user.pseudo},
 215                               {author_id, User#user.id}
 216                            ]
 217                         }
 218                      end,
 219                      Trolls
 220                   )
 221                }}
 222             ]
 223          };
 224       {del, Troll_id} ->
 225          {struct,
 226             [
 227                {reply, "troll_deleted"},
 228                {troll_id, Troll_id}
 229             ]
 230          };
 231       _ ->
 232          erreur("timeout")
 233    end;
 234 wait_event(_) ->
 235    erreur("Page inconnue").
 236
 237
 238 wait_event_page_chat(User, Racines_conversations, Message_count, Last_message_id, Main_page, Troll_id) ->
 239    % est-ce que le troll est à jour ?
 240    case euphorik_bd:current_troll() of
 241       Current when is_record(Current, troll), Current#troll.id =/= Troll_id ->
 242          {struct, [
 243             {reply, "new_troll"},
 244             {troll_id, Current#troll.id},
 245             {message_id, euphorik_bd:message_id_associe(Current#troll.id)},
 246             {content, Current#troll.content}
 247          ]};
 248       _ ->
 249          % est-ce qu'il y a des nouveaux messages ?
 250          case euphorik_minichat_conversation:conversations(Racines_conversations, Message_count, Last_message_id, Main_page) of
 251             vide ->
 252                wait_event_bd_page_chat(),
 253                wait_event_page_chat(User, Racines_conversations, Message_count, Last_message_id, Main_page, Troll_id);
 254             Conversations ->
 255                % accrochez-vous ca va siouxer ;)
 256                {struct, [
 257                   {reply, "new_messages"},
 258                   {conversations, {array,
 259                      lists:map(
 260                         fun({Conv, Plus}) ->
 261                            {struct, [
 262                               {last_page, not Plus},
 263                               {messages, {array,
 264                                  lists:map(
 265                                     fun({Mess, Repond_a}) ->
 266                                        Est_proprietaire = User =/= inconnu andalso User#user.id =:= Mess#minichat.auteur_id,
 267                                        A_repondu_a_message = User =/= inconnu andalso euphorik_bd:a_repondu_a_message(User#user.id, Mess#minichat.id),
 268                                        Est_une_reponse_a_user = User =/= inconnu andalso euphorik_bd:est_une_reponse_a_user(User#user.id, Mess#minichat.id),
 269                                        {ok, User_mess } = euphorik_bd:user_by_id(Mess#minichat.auteur_id),
 270                                        {struct, [
 271                                           {id, Mess#minichat.id},
 272                                           {user_id, User_mess#user.id},
 273                                           {date, format_date(Mess#minichat.date)},
 274                                           {system, Mess#minichat.auteur_id =:= 0},
 275                                           {owner, Est_proprietaire},
 276                                           {answered, A_repondu_a_message},
 277                                           {is_a_reply, Est_une_reponse_a_user},
 278                                           {nick, Mess#minichat.pseudo},
 279                                           {login, User_mess#user.login},
 280                                           {content, Mess#minichat.contenu},
 281                                           {answer_to, {array, lists:map(
 282                                              fun(Id_mess) ->
 283                                                 {ok, M} = euphorik_bd:message_by_id(Id_mess),
 284                                                 {ok, User_reponse} = euphorik_bd:user_by_mess(M#minichat.id),
 285                                                 {struct, [{id, M#minichat.id}, {nick, M#minichat.pseudo}, {login, User_reponse#user.login}]}
 286                                              end,
 287                                              Repond_a
 288                                           )}},
 289                                           {ek_master, User_mess#user.ek_master}
 290                                        ]}
 291                                     end,
 292                                     Conv
 293                                  )
 294                               }}
 295                            ]}
 296                         end,
 297                         Conversations
 298                      )
 299                   }}
 300                ]}
 301          end
 302    end.
 303
 304
 305 % Attend un événement lié à la page 'chat'.
 306 wait_event_bd_page_chat() ->
 307    receive % attente d'un post
 308       {mnesia_table_event, {write, minichat, _Message, [], _}} ->
 309          ok;
 310       {mnesia_table_event, {write, troll, Troll, [Old_troll | _], _}} when Troll#troll.date_post =/= undefined, Old_troll#troll.date_post == undefined ->
 311          ok;
 312       {tcp_closed, _} ->
 313          exit(normal);
 314       _ ->
 315          wait_event_bd_page_chat()
 316    % 60 minutes de timeout (on ne sais jamais)
 317    % Après 60 minutes de connexion, le client doit donc reétablir une connexion
 318    after 1000 * 60 * 60 ->
 319       timeout
 320    end.
 321
 322
 323 % Attent un événement concernant la page admin
 324 % Renvoie les trolls manquants posté après Last_id ou banned_ips_refresh.
 325 % Si pas de trolls alors attend un événement tel qu'un ajout, une modification ou une suppression.
 326 % renvoie :
 327 %  {mod, Troll}
 328 % ou {add, [Trolls]}
 329 % ou {del, Troll_id}
 330 % ou banned_ips_refresh
 331 % ou timeout
 332 wait_event_page_admin(Last_id) ->
 333    case {mnesia:subscribe({table, troll, detailed}), mnesia:subscribe({table, ip_table, detailed})} of
 334       {{error, E}, _ } -> E;
 335       {_, {error, E}} -> E;
 336       _ ->
 337          R = case euphorik_bd:trolls(Last_id) of
 338                [] -> % pas de trolls
 339                   wait_event_page_admin();
 340                Trolls ->
 341                   {add, Trolls}
 342          end,
 343          mnesia:unsubscribe({table, troll, detailed}),
 344          mnesia:unsubscribe({table, ip_table, detailed}),
 345          R
 346    end.
 347
 348 wait_event_page_admin() ->
 349    % s'il n'y a pas de trolls que l'utilisateur n'a pas connaissance alors on attend un événement
 350    receive
 351       % cas où un troll est choisit comme courant
 352       {mnesia_table_event, {write, troll, Troll, [Old_troll | _], _}}
 353          when Old_troll#troll.date_post =:= undefined, Troll#troll.date_post =/= undefined ->
 354          {del, Troll#troll.id};
 355       {mnesia_table_event, {write, troll, Troll, [_Old_troll | _], _}} ->
 356          {mod, Troll};
 357       {mnesia_table_event, {write, troll, Troll, [], _}} ->
 358          {add, [Troll]};
 359       {mnesia_table_event, {delete, troll, {troll, Id}, _, _}} ->
 360          {del, Id};
 361       {mnesia_table_event, {write, ip_table, IP, [Old_IP | _], _}}
 362          when Old_IP#ip_table.ban =/= IP#ip_table.ban; Old_IP#ip_table.ban_duration =/= IP#ip_table.ban_duration ->
 363          banned_ips_refresh;
 364       {tcp_closed, _} ->
 365          exit(normal);
 366       _ ->
 367          wait_event_page_admin()
 368    % 60 minutes de timeout (on ne sais jamais)
 369    % Après 60 minutes de connexion, le client doit donc reétablir une connexion
 370    after 1000 * 60 * 60 ->
 371       timeout
 372    end.
 373
 374
 375 % Un utilisateur envoie un message
 376 put_message(
 377    [
 378       {cookie, Cookie},
 379       {nick, Nick},
 380       {content, Content},
 381       {answer_to, {array, Answer_to}}
 382    ]
 383 ) ->
 384    case euphorik_bd:user_by_cookie(Cookie) of
 385       {ok, User} ->
 386          case euphorik_bd:est_banni(User#user.id) of
 387             {true, Temps_restant} ->
 388                erreur("Vous êtes banni pour encore " ++ format_minutes(Temps_restant));
 389             _ ->
 390                Strip_content = string:strip(Content),
 391                if Strip_content =:= [] ->
 392                      erreur("Message vide");
 393                   true ->
 394                      % TODO : non-atomique (update_pseudo+nouveau_message)
 395                      euphorik_bd:update_pseudo_user(User#user.id, Nick),
 396                      case euphorik_bd:nouveau_message(Strip_content, User#user.id, Answer_to) of
 397                         {erreur, R} -> erreur("Impossible d'ajouter un nouveau message. Raison : " ++ R);
 398                         _ ->
 399                            json_reponse_ok()
 400                      end
 401                end
 402          end;
 403    _ ->
 404       erreur("Utilisateur inconnu")
 405    end.
 406
 407
 408 % bannissement d'un utilisateur (son ip est bannie)
 409 ban(
 410    [
 411       {cookie, Cookie},
 412       {duration, Duration},
 413       {user_id, User_id},
 414       {reason, Reason}
 415    ]) ->
 416       % controle que l'utilisateur est un admin
 417       case euphorik_bd:user_by_cookie(Cookie) of
 418          {ok, User1 = #user{ek_master = true}} ->
 419             case euphorik_bd:user_by_id(User_id) of
 420                {ok, User1} ->
 421                   erreur("Il n'est pas possible de s'auto bannir");
 422                {ok, User2 = #user{ek_master = false}} ->
 423                   euphorik_bd:ban(User2#user.last_ip, Duration),
 424                   euphorik_bd:nouveau_message_sys(lists:flatten(io_lib:format("''~s~s'' est ~s pour ~s.~s",
 425                      [
 426                         User2#user.pseudo,
 427                         if User2#user.login =:= [] -> ""; true -> " (" ++ User2#user.login ++ ")" end,
 428                         if Duration =< 15 -> "kické"; true -> "banni" end,
 429                         format_minutes(Duration),
 430                         if Reason =/= [] -> " - Raison: " ++ Reason; true -> "" end ++ "."
 431                      ]
 432                   ))),
 433                   json_reponse_ok();
 434                {ok, _} ->
 435                   erreur("L'utilisateur est lui même un ekMaster");
 436                _ ->
 437                   erreur("Utilisateur à bannir inconnu")
 438             end;
 439          _ ->
 440             erreur("Utilisateur inconnu ou non ek master")
 441       end.
 442
 443
 444 % slapage d'un user (avertissement)
 445 slap(
 446    [
 447       {cookie, Cookie},
 448       {user_id, User_id},
 449       {reason, Reason}
 450    ]) ->
 451       % controle que l'utilisateur est un admin
 452       case euphorik_bd:user_by_cookie(Cookie) of
 453          {ok, User1 = #user{ek_master = true}} ->
 454             case euphorik_bd:user_by_id(User_id) of
 455                {ok, User1} ->
 456                   euphorik_bd:nouveau_message_sys(lists:flatten(io_lib:format("~s s'auto slap~s.",
 457                      [
 458                         User1#user.pseudo,
 459                         if Reason =/= [] -> " - Raison: " ++ Reason; true -> "" end
 460                      ]
 461                   ))),
 462                   json_reponse_ok();
 463                {ok, User2 = #user{ek_master = false}} ->
 464                   euphorik_bd:nouveau_message_sys(lists:flatten(io_lib:format("~s se fait slaper par ~s.~s",
 465                      [
 466                         User2#user.pseudo,
 467                         User1#user.pseudo,
 468                         if Reason =/= [] -> " - Raison: " ++ Reason; true -> "" end ++ "."
 469                      ]
 470                   ))),
 471                   json_reponse_ok();
 472                {ok, _} ->
 473                   erreur("L'utilisateur est lui même un ekMaster");
 474                _ ->
 475                   erreur("Utilisateur à slaper inconnu")
 476             end;
 477          _ ->
 478             erreur("Utilisateur inconnu ou non ek master")
 479       end.
 480
 481
 482 put_troll(
 483    [
 484       {cookie, Cookie},
 485       {content, Content}
 486    ]
 487 ) ->
 488    % controle que l'utilisateur est un admin
 489    case euphorik_bd:user_by_cookie(Cookie) of
 490       {ok, User = #user{ek_master = true}} ->
 491          case euphorik_bd:put_troll(User#user.id, Content) of
 492             max_troll_reached_per_user ->
 493                erreur(lists:flatten(io_lib:format("Le nombre de troll maximum par utilisateur est atteint : ~w ", [?NB_MAX_TROLL_WAITING_BY_USER])));
 494             max_troll_reached ->
 495                erreur(lists:flatten(io_lib:format("Le nombre de troll maximum en attente est atteint : ~w ", [?NB_MAX_TROLL_WAITING])));
 496             _Id ->
 497                json_reponse_ok()
 498          end;
 499       _ ->
 500          erreur("Seul les ekMaster peuvent proposer des trolls")
 501    end.
 502
 503
 504 mod_troll(
 505    [
 506       {cookie, Cookie},
 507       {troll_id, Troll_id},
 508       {content, Content}
 509    ]
 510 ) ->
 511    % controle que l'utilisateur est un admin
 512    case euphorik_bd:user_by_cookie(Cookie) of
 513       {ok, User = #user{ek_master = true}} ->
 514          User_id = User#user.id,
 515          case euphorik_bd:troll_by_id(Troll_id) of
 516             {ok, #troll{id_user = User_id}} ->
 517                euphorik_bd:mod_troll(Troll_id, Content),
 518                json_reponse_ok();
 519             _ ->
 520                erreur("Vous ne posséder pas ce troll")
 521          end;
 522       _ ->
 523          erreur("Seul les ekMaster peuvent proposer des trolls")
 524       end.
 525
 526
 527 del_troll(
 528    [
 529       {cookie, Cookie},
 530       {troll_id, Troll_id}
 531    ]
 532 ) ->
 533    % controle que l'utilisateur est un admin
 534    case euphorik_bd:user_by_cookie(Cookie) of
 535       {ok, User = #user{ek_master = true}} ->
 536          User_id = User#user.id,
 537          case euphorik_bd:troll_by_id(Troll_id) of
 538             {ok, #troll{id_user = User_id}} ->
 539                euphorik_bd:del_troll(Troll_id),
 540                json_reponse_ok();
 541             _ ->
 542                erreur("Vous ne posséder pas ce troll")
 543          end;
 544       _ ->
 545          erreur("Seul les ekMaster peuvent proposer des trolls")
 546    end.
 547
 548
 549 unban_ip(
 550    [
 551       {cookie, Cookie},
 552       {ip, IP}
 553    ]
 554 ) ->
 555    case euphorik_bd:user_by_cookie(Cookie) of
 556       {ok, #user{ek_master = true}} ->
 557          euphorik_bd:deban(euphorik_common:unserialize_ip(IP)),
 558          json_reponse_ok();
 559       _ ->
 560          erreur("Seul les ekMaster peuvent connaitre la liste des ips bannies")
 561    end.
 562
 563
 564 list_banned_ips(
 565    [
 566       {cookie, Cookie}
 567    ]
 568 ) ->
 569    case euphorik_bd:user_by_cookie(Cookie) of
 570       {ok, #user{ek_master = true}} ->
 571          {
 572             struct,
 573             [
 574                {reply, "list_banned_ips"},
 575                {list, {array, lists:map(
 576                   fun({IP, T, Users}) ->
 577                      {struct,
 578                         [
 579                            {ip, euphorik_common:serialize_ip(IP)},
 580                            {remaining_time, format_minutes(T)},
 581                            {users, {array, lists:map(
 582                               fun({Pseudo, Login}) ->
 583                                  {struct,
 584                                     [
 585                                        {nick, Pseudo},
 586                                        {login, Login}
 587                                     ]
 588                                  }
 589                               end,
 590                               Users
 591                            )}}
 592                         ]
 593                      }
 594                   end,
 595                   euphorik_bd:list_ban()
 596                )}}
 597             ]
 598          };
 599       _ ->
 600          erreur("Seul les ekMaster peuvent connaitre la liste des ips bannies")
 601    end.
 602
 603
 604 % Construit une erreur
 605 erreur(Message) ->
 606    {
 607       struct, [
 608          {reply, "error"},
 609          {error_message, Message}
 610       ]
 611    }.
 612
 613
 614 % Formatage de minutes.
 615 % par exemple : "1min", "45min", "1h23min", "1jour 2h34min"
 616 format_minutes(Min) ->
 617    Jours = Min div (60 * 24),
 618    Heures = Min rem (60 * 24) div 60,
 619    Minutes = Min rem (60),
 620    if Jours =/= 0 -> integer_to_list(Jours) ++ " Jour" ++ if Jours > 1 -> "s"; true -> "" end ++ " "; true -> "" end ++
 621    if Heures =/= 0 -> integer_to_list(Heures) ++ " heure"  ++ if Heures > 1 -> "s"; true -> "" end; true -> "" end ++
 622    if Minutes == 0 ->
 623          "";
 624       true ->
 625          " " ++ integer_to_list(Minutes) ++ " minute"  ++ if Minutes > 1 -> "s"; true -> "" end
 626    end.
 627
 628
 629 % Formatage d'une heure
 630 % local_time() -> string
 631 format_date(Date) ->
 632    DateLocal = calendar:now_to_local_time(Date),
 633    DateNowLocal = calendar:local_time(),
 634    {{Annee, Mois, Jour}, {Heure, Minute, Seconde}} = DateLocal,
 635    {{AnneeNow, _, _}, {_, _, _}} = DateNowLocal,
 636    Hier = calendar:date_to_gregorian_days(element(1, DateLocal)) =:=  calendar:date_to_gregorian_days(element(1, DateNowLocal)) - 1,
 637    lists:flatten(
 638       if element(1, DateLocal) =:= element(1, DateNowLocal) ->
 639          "";
 640          Hier ->
 641             "Hier ";
 642          Annee =:= AnneeNow ->
 643             io_lib:format("~2.10.0B/~2.10.0B ", [Jour, Mois]);
 644          true ->
 645             io_lib:format("~2.10.0B/~2.10.0B/~B ", [Jour, Mois, Annee])
 646       end ++
 647       io_lib:format("~2.10.0B:~2.10.0B:~2.10.0B", [Heure, Minute, Seconde])
 648    ).
 649
 650
 651 json_reponse_ok() ->
 652    {struct, [{reply, "ok"}]}.
 653
 654
 655 json_reponse_login_ok(User) ->
 656    {
 657       struct, [
 658          {reply, "login"},
 659          {status, if (User#user.password =/= []) and (User#user.login =/= []) -> "auth_registered"; true -> "auth_not_registered" end},
 660          {cookie, User#user.cookie},
 661          {id, User#user.id},
 662          {nick, User#user.pseudo},
 663          {login, User#user.login},
 664          {email, User#user.email},
 665          {css, User#user.css},
 666          {nick_format, atom_to_list(User#user.nick_format)},
 667          {view_times, User#user.view_times},
 668          {view_tooltips, User#user.view_tooltips},
 669          {main_page, User#user.page_principale},
 670          {conversations,
 671             {array,
 672                lists:map(
 673                   fun(C) ->
 674                      {struct,
 675                         [
 676                            {root, element(1, C)},
 677                            {page, element(2, C)}
 678                         ]
 679                      }
 680                   end,
 681                   User#user.conversations
 682                )
 683             }
 684          },
 685       {ek_master, User#user.ek_master}
 686       ]
 687    }.