/
boss_web_controller.erl
1031 lines (965 loc) · 47.8 KB
/
boss_web_controller.erl
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-module(boss_web_controller).
-behaviour(gen_server).
-export([start_link/0, start_link/1, handle_request/3, process_request/5]).
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
-define(DEBUGPRINT(A), error_logger:info_report("~~o)> " ++ A)).
-record(state, {
applications = [],
service_sup_pid,
http_pid,
smtp_pid,
is_master_node = false
}).
-include("boss_web.hrl").
start_link() ->
start_link([]).
start_link(Config) ->
gen_server:start_link({local, boss_web}, ?MODULE, Config, []).
terminate(Reason, #state{ is_master_node = true } = State) ->
boss_news:stop(),
boss_mq:stop(),
boss_session:stop(),
case boss_env:get_env(smtp_server_enable, false) of
true ->
gen_smtp_server:stop({global, boss_smtp_server});
_ ->
ok
end,
terminate(Reason, State#state{ is_master_node = false });
terminate(_Reason, State) ->
lists:map(fun(AppInfo) ->
stop_init_scripts(AppInfo#boss_app_info.application, AppInfo#boss_app_info.init_data)
end, State#state.applications),
error_logger:logfile(close),
boss_translator:stop(),
boss_router:stop(),
boss_db:stop(),
boss_cache:stop(),
mochiweb_http:stop(),
misultin:stop().
init(Config) ->
case boss_env:get_env(log_enable, true) of
false -> ok;
true ->
LogDir = boss_env:get_env(log_dir, "log"),
LogFile = make_log_file_name(LogDir),
ok = filelib:ensure_dir(LogFile),
error_logger:logfile(close),
ok = error_logger:logfile({open, LogFile}),
%ok = error_logger:tty(false),
ok = make_log_file_symlink(LogFile)
end,
Env = boss_env:setup_boss_env(),
error_logger:info_msg("Starting Boss in ~p mode....~n", [Env]),
DBOptions = lists:foldl(fun(OptName, Acc) ->
case application:get_env(OptName) of
{ok, Val} -> [{OptName, Val}|Acc];
_ -> Acc
end
end, [], [db_port, db_host, db_username, db_password, db_database]),
DBAdapter = boss_env:get_env(db_adapter, mock),
DBShards = boss_env:get_env(db_shards, []),
CacheEnable = boss_env:get_env(cache_enable, false),
IsMasterNode = boss_env:is_master_node(),
DBCacheEnable = boss_env:get_env(db_cache_enable, false) andalso CacheEnable,
DBOptions1 = [{adapter, DBAdapter}, {cache_enable, DBCacheEnable},
{shards, DBShards}, {is_master_node, IsMasterNode}|DBOptions],
boss_db:start(DBOptions1),
case CacheEnable of
false -> ok;
true ->
CacheAdapter = boss_env:get_env(cache_adapter, memcached_bin),
CacheOptions = [{adapter, CacheAdapter},
{cache_servers, boss_env:get_env(cache_servers, [{"127.0.0.1", 11211, 1}])}],
boss_cache:start(CacheOptions)
end,
boss_session:start(),
ThisNode = erlang:node(),
MasterNode = boss_env:get_env(master_node, ThisNode),
if MasterNode =:= ThisNode ->
error_logger:info_msg("Starting master services on ~p~n", [MasterNode]),
boss_mq:start(),
boss_news:start(),
case boss_env:get_env(smtp_server_enable, false) of
true ->
Options = [
{domain, boss_env:get_env(smtp_server_domain, "localhost")},
{address, boss_env:get_env(smtp_server_address, {0, 0, 0, 0})},
{port, boss_env:get_env(smtp_server_port, 25)},
{protocol, boss_env:get_env(smtp_server_protocol, tcp)},
{sessionoptions, [{boss_env, Env}]}],
gen_smtp_server:start({global, boss_smtp_server}, boss_smtp_server, [Options]);
_ ->
ok
end;
true ->
error_logger:info_msg("Pinging master node ~p from ~p~n", [MasterNode, ThisNode]),
pong = net_adm:ping(MasterNode)
end,
MailDriver = boss_env:get_env(mail_driver, boss_mail_driver_smtp),
boss_mail:start([{driver, MailDriver}]),
{ServerMod, RequestMod, ResponseMod} = case boss_env:get_env(server, misultin) of
mochiweb -> {mochiweb_http, mochiweb_request_bridge, mochiweb_response_bridge};
misultin -> {misultin, misultin_request_bridge, misultin_response_bridge};
cowboy -> {cowboy, mochiweb_request_bridge, mochiweb_response_bridge}
end,
SSLEnable = boss_env:get_env(ssl_enable, false),
SSLOptions = boss_env:get_env(ssl_options, []),
error_logger:info_msg("SSL:~p~n", [SSLOptions]),
{ok, ServicesSupPid} = case MasterNode of
ThisNode ->
boss_service_sup:start_link();
_AnyNode ->
{ok, undefined}
end,
ServerConfig = [{loop, fun(Req) ->
?MODULE:handle_request(Req, RequestMod, ResponseMod)
end} | Config],
Pid = case ServerMod of
mochiweb_http -> mochiweb_http:start([{ssl, SSLEnable}, {ssl_opts, SSLOptions} | ServerConfig]);
misultin ->
case SSLEnable of
true -> misultin:start_link([{ssl, SSLOptions} | ServerConfig]);
false -> misultin:start_link(ServerConfig)
end;
cowboy ->
%Dispatch = [{'_', [{'_', boss_mochicow_handler, [{loop, {boss_mochicow_handler, loop}}]}]}],
error_logger:info_msg("Starting cowboy... on ~p~n", [MasterNode]),
application:start(cowboy),
HttpPort = boss_env:get_env(port, 8001),
case SSLEnable of
false ->
error_logger:info_msg("Starting http listener... on ~p ~n", [HttpPort]),
cowboy:start_listener(boss_http_listener, 100,
cowboy_tcp_transport, [{port, HttpPort}],
cowboy_http_protocol, []);
true ->
error_logger:info_msg("Starting https listener... on ~p ~n", [HttpPort]),
SSLConfig = [{port, HttpPort}]++SSLOptions,
cowboy:start_listener(boss_https_listener, 100,
cowboy_ssl_transport, SSLConfig,
cowboy_http_protocol, [])
end,
if MasterNode =:= ThisNode ->
boss_service_sup:start_services(ServicesSupPid, boss_websocket_router),
boss_load:load_services_websockets()
end
end,
{ok, #state{ service_sup_pid = ServicesSupPid, http_pid = Pid, is_master_node = (ThisNode =:= MasterNode) }, 0}.
handle_info(timeout, State) ->
Applications = boss_env:get_env(applications, []),
ServicesSupPid = State#state.service_sup_pid,
AppInfoList = lists:map(fun
(AppName) ->
application:start(AppName),
BaseURL = boss_env:get_env(AppName, base_url, "/"),
StaticPrefix = boss_env:get_env(AppName, static_prefix, "/static"),
DocPrefix = boss_env:get_env(AppName, doc_prefix, "/doc"),
DomainList = boss_env:get_env(AppName, domains, all),
ModelList = boss_files:model_list(AppName),
ThisNode = erlang:node(),
MasterNode = boss_env:get_env(master_node, ThisNode),
if MasterNode =:= ThisNode ->
case boss_env:get_env(server, misultin) of
cowboy ->
WebSocketModules = boss_files:websocket_list(AppName),
MappingServices = boss_files:websocket_mapping(BaseURL,
atom_to_list(AppName),
WebSocketModules),
boss_service_sup:start_services(ServicesSupPid, MappingServices);
_Any ->
_Any
end
end,
ControllerList = boss_files:web_controller_list(AppName),
{ok, RouterSupPid} = boss_router:start([{application, AppName},
{controllers, ControllerList}]),
{ok, TranslatorSupPid} = boss_translator:start([{application, AppName}]),
case boss_env:is_developing_app(AppName) of
true -> boss_load:load_all_modules(AppName, TranslatorSupPid);
false -> ok
end,
InitData = run_init_scripts(AppName),
#boss_app_info{ application = AppName,
init_data = InitData,
router_sup_pid = RouterSupPid,
translator_sup_pid = TranslatorSupPid,
base_url = (if BaseURL =:= "/" -> ""; true -> BaseURL end),
static_prefix = StaticPrefix,
doc_prefix = DocPrefix,
domains = DomainList,
model_modules = ModelList,
controller_modules = ControllerList
}
end, Applications),
%% cowboy dispatch rule for static content
case boss_env:get_env(server, misultin) of
cowboy ->
AppStaticDispatches = lists:map(
fun(AppName) ->
AppPath = boss_env:get_env(AppName, path, "./"),
BaseURL = boss_env:get_env(AppName, base_url, "/"),
StaticPrefix = boss_env:get_env(AppName, static_prefix, "/static"),
Path = reformat_path(BaseURL++StaticPrefix),
Handler = cowboy_http_static,
Opts = [
{directory, list_to_binary(AppPath ++ "/priv/static")},
{mimetypes, {fun mimetypes:path_to_mimes/2, default}}
],
{Path ++ ['...'], Handler, Opts}
end, Applications),
BossDispatch = [{'_', boss_mochicow_handler,
[{loop, {boss_mochicow_handler, loop}}]
}],
Dispatch = Dispatch = [{'_', AppStaticDispatches ++ BossDispatch}],
ProtoOpts = [{dispatch, Dispatch}],
cowboy:set_protocol_options(boss_http_listener, ProtoOpts);
_Oops ->
_Oops
end,
{noreply, State#state{ applications = AppInfoList }}.
handle_call({reload_translation, Locale}, _From, State) ->
lists:map(fun(AppInfo) ->
[{_, TranslatorPid, _, _}] = supervisor:which_children(AppInfo#boss_app_info.translator_sup_pid),
boss_translator:reload(TranslatorPid, Locale)
end, State#state.applications),
{reply, ok, State};
handle_call(reload_all_translations, _From, State) ->
lists:map(fun(AppInfo) ->
[{_, TranslatorPid, _, _}] = supervisor:which_children(AppInfo#boss_app_info.translator_sup_pid),
boss_translator:reload_all(TranslatorPid)
end, State#state.applications),
{reply, ok, State};
handle_call(reload_routes, _From, State) ->
lists:map(fun(AppInfo) ->
[{_, RouterPid, _, _}] = supervisor:which_children(AppInfo#boss_app_info.router_sup_pid),
boss_router:reload(RouterPid)
end, State#state.applications),
{reply, ok, State};
handle_call(reload_init_scripts, _From, State) ->
NewApplications = lists:map(fun(AppInfo) ->
stop_init_scripts(AppInfo#boss_app_info.application, AppInfo#boss_app_info.init_data),
NewInitData = run_init_scripts(AppInfo#boss_app_info.application),
AppInfo#boss_app_info{ init_data = NewInitData }
end, State#state.applications),
{reply, ok, State#state{ applications = NewApplications }};
handle_call(get_all_routes, _From, State) ->
Routes = lists:map(fun(AppInfo) ->
[{_, RouterPid, _, _}] = supervisor:which_children(AppInfo#boss_app_info.router_sup_pid),
{AppInfo#boss_app_info.application, boss_router:get_all(RouterPid)}
end, State#state.applications),
{reply, Routes, State};
handle_call(get_all_models, _From, State) ->
Models = lists:foldl(fun(AppInfo, Acc) ->
boss_files:model_list(AppInfo#boss_app_info.application) ++ Acc
end, [], State#state.applications),
{reply, Models, State};
handle_call(get_all_applications, _From, State) ->
Applications = lists:map(fun(AppInfo) -> AppInfo#boss_app_info.application end, State#state.applications),
{reply, Applications, State};
handle_call({translator_pid, App}, _From, State) ->
Pid = lists:foldl(fun
(#boss_app_info{ application = App1, translator_sup_pid = SupPid }, _) when App1 =:= App ->
[{_, TranslatorPid, _, _}] = supervisor:which_children(SupPid),
TranslatorPid;
(_, Res) ->
Res
end, undefined, State#state.applications),
{reply, Pid, State};
handle_call({router_pid, App}, _From, State) ->
Pid = lists:foldl(fun
(#boss_app_info{ application = App1, router_sup_pid = SupPid }, _) when App1 =:= App ->
[{_, RouterPid, _, _}] = supervisor:which_children(SupPid),
RouterPid;
(_, Res) ->
Res
end, undefined, State#state.applications),
{reply, Pid, State};
handle_call({application_info, App}, _From, State) ->
AppInfo = lists:keyfind(App, 2, State#state.applications),
{reply, AppInfo, State};
handle_call({base_url, App}, _From, State) ->
BaseURL = lists:foldl(fun
(#boss_app_info{ application = App1, base_url = URL }, _) when App1 =:= App ->
URL;
(_, Res) ->
Res
end, "", State#state.applications),
{reply, BaseURL, State};
handle_call({static_prefix, App}, _From, State) ->
StaticPrefix = lists:foldl(fun
(#boss_app_info{ application = App1, static_prefix = Prefix }, _) when App1 =:= App ->
Prefix;
(_, Res) ->
Res
end, "/static", State#state.applications),
{reply, StaticPrefix, State};
handle_call({domains, App}, _From, State) ->
DomainList = lists:foldl(fun
(#boss_app_info{ application = App1, domains = Domains}, _) when App1 =:= App ->
Domains;
(_, Res) ->
Res
end, all, State#state.applications),
{reply, DomainList, State}.
handle_cast(_Request, State) ->
{noreply, State}.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
find_application_for_path(Host, Path, Applications) ->
UseHost = case Host of
undefined -> undefined;
_ -> hd(re:split(Host, ":", [{return, list}]))
end,
find_application_for_path(UseHost, Path, undefined, Applications, -1).
find_application_for_path(_Host, _Path, Default, [], _MatchScore) ->
Default;
find_application_for_path(Host, Path, Default, [App|Rest], MatchScore) ->
DomainScore = case Host of
undefined -> 0;
_ ->
case boss_web:domains(App) of
all -> 0;
Domains ->
case lists:member(Host, Domains) of
true -> 1;
false -> -1
end
end
end,
BaseURL = boss_web:base_url(App),
PathScore = length(BaseURL),
{UseApp, UseScore} = case (DomainScore >= 0) andalso (1000 * DomainScore + PathScore > MatchScore) andalso lists:prefix(BaseURL, Path) of
true -> {App, DomainScore * 1000 + PathScore};
false -> {Default, MatchScore}
end,
find_application_for_path(Host, Path, UseApp, Rest, UseScore).
stop_init_scripts(Application, InitData) ->
lists:foldr(fun(File, _) ->
case boss_compiler:compile(File, [{include_dirs, [boss_files:include_dir() | boss_env:get_env(boss, include_dirs, [])]}]) of
{ok, Module} ->
case proplists:get_value(Module, InitData, init_failed) of
init_failed ->
ok;
ScriptInitData ->
catch Module:stop(ScriptInitData)
end;
Error -> error_logger:error_msg("Compilation of ~p failed: ~p~n", [File, Error])
end
end, ok, boss_files:init_file_list(Application)).
run_init_scripts(AppName) ->
lists:foldl(fun(File, Acc) ->
case boss_compiler:compile(File, [{include_dirs, [boss_files:include_dir() | boss_env:get_env(boss, include_dirs, [])]}]) of
{ok, Module} ->
case catch Module:init() of
{ok, Info} ->
[{Module, Info}|Acc];
ok ->
[{Module, true}|Acc];
Error ->
error_logger:error_msg("Execution of ~p failed: ~p~n", [File, Error]),
Acc
end;
Error ->
error_logger:error_msg("Compilation of ~p failed: ~p~n", [File, Error]),
Acc
end
end, [], boss_files:init_file_list(AppName)).
handle_request(Req, RequestMod, ResponseMod) ->
LoadedApplications = boss_web:get_all_applications(),
Request = simple_bridge:make_request(RequestMod, Req),
FullUrl = Request:path(),
case find_application_for_path(Request:header(host), FullUrl, LoadedApplications) of
undefined ->
Response = simple_bridge:make_response(ResponseMod, {Req, undefined}),
Response1 = (Response:status_code(404)):data(["No application configured at this URL"]),
Response1:build_response();
App ->
BaseURL = boss_web:base_url(App),
DocRoot = boss_files:static_path(App),
StaticPrefix = boss_web:static_prefix(App),
Url = lists:nthtail(length(BaseURL), FullUrl),
Response = simple_bridge:make_response(ResponseMod, {Req, DocRoot}),
case Url of
"/favicon.ico" = File ->
(Response:file(File)):build_response();
_ ->
case string:substr(Url, 1, length(StaticPrefix)) of
StaticPrefix ->
[$/|File] = lists:nthtail(length(StaticPrefix), Url),
(Response:file([$/|File])):build_response();
_ ->
build_dynamic_response(App, Request, Response, Url)
end
end
end.
build_dynamic_response(App, Request, Response, Url) ->
SessionKey = boss_session:get_session_key(),
SessionID = case boss_env:get_env(session_enable, true) of
true ->
boss_session:new_session(Request:cookie(SessionKey));
false ->
undefined
end,
Mode = case boss_env:is_developing_app(App) of
true -> development;
false -> production
end,
AppInfo = boss_web:application_info(App),
TranslatorPid = boss_web:translator_pid(App),
RouterPid = boss_web:router_pid(App),
{Time, {StatusCode, Headers, Payload}} = timer:tc(?MODULE, process_request, [
AppInfo#boss_app_info{ translator_pid = TranslatorPid, router_pid = RouterPid },
Request, Mode, Url, SessionID]),
ErrorFormat = "~s ~s [~p] ~p ~pms~n",
RequestMethod = Request:request_method(),
FullUrl = Request:path(),
ErrorArgs = [RequestMethod, FullUrl, App, StatusCode, Time div 1000],
case StatusCode of
500 -> error_logger:error_msg(ErrorFormat, ErrorArgs);
404 -> error_logger:warning_msg(ErrorFormat, ErrorArgs);
_ -> error_logger:info_msg(ErrorFormat, ErrorArgs)
end,
Response1 = (Response:status_code(StatusCode)):data(Payload),
Headers2 = case SessionID of
undefined ->
Headers;
_ ->
SessionExpTime = boss_session:get_session_exp_time(),
CookieOptions = [{path, "/"}, {max_age, SessionExpTime}],
CookieOptions2 = case boss_env:get_env(session_domain, undefined) of
undefined ->
CookieOptions;
CookieDomain ->
lists:merge(CookieOptions, [{domain, CookieDomain}])
end,
lists:merge(Headers, [ mochiweb_cookies:cookie(SessionKey, SessionID, CookieOptions2) ])
end,
Response2 = lists:foldl(fun({K, V}, Acc) -> Acc:header(K, V) end, Response1, Headers2),
case Payload of
{stream, Generator, Acc0} ->
Response3 = Response2:data(chunked),
Response3:build_response(),
process_chunk_generator(Request, RequestMethod, Generator, Acc0);
_ ->
(Response2:data(Payload)):build_response()
end.
process_request(#boss_app_info{ doc_prefix = DocPrefix } = AppInfo, Req, development, DocPrefix, SessionID) ->
Result = case catch load_and_execute(development, {"doc", [], []}, AppInfo, Req, SessionID) of
{'EXIT', Reason} ->
{error, Reason};
Ok ->
Ok
end,
process_result(AppInfo, Req, Result);
process_request(AppInfo, Req, development, Url, SessionID) ->
DocPrefixPlusSlash = AppInfo#boss_app_info.doc_prefix ++ "/",
Result = case string:substr(Url, 1, length(DocPrefixPlusSlash)) of
DocPrefixPlusSlash ->
ModelName = lists:nthtail(length(DocPrefixPlusSlash), Url),
case string:chr(ModelName, $.) of
0 ->
case catch load_and_execute(development, {"doc", ModelName, []}, AppInfo, Req, SessionID) of
{'EXIT', Reason} ->
{error, Reason};
Ok ->
Ok
end;
_ ->
{not_found, "File not found"}
end;
_ ->
ControllerList = boss_files:web_controller_list(AppInfo#boss_app_info.application),
RouterPid = AppInfo#boss_app_info.router_pid,
boss_router:set_controllers(RouterPid, ControllerList),
boss_router:reload(RouterPid),
process_dynamic_request(AppInfo, Req, development, Url, SessionID)
end,
process_result(AppInfo, Req, Result);
process_request(AppInfo, Req, Mode, Url, SessionID) ->
Result = process_dynamic_request(AppInfo, Req, Mode, Url, SessionID),
process_result(AppInfo, Req, Result).
process_dynamic_request(#boss_app_info{ router_pid = RouterPid } = AppInfo, Req, Mode, Url, SessionID) ->
Result = case boss_router:route(RouterPid, Url) of
{ok, {Application, Controller, Action, Tokens}} when Application =:= AppInfo#boss_app_info.application ->
Location = {Controller, Action, Tokens},
case catch load_and_execute(Mode, Location, AppInfo, Req, SessionID) of
{'EXIT', Reason} ->
{error, Reason};
{not_found, Message} ->
process_not_found(Message, AppInfo, Req, Mode, SessionID);
Ok ->
Ok
end;
{ok, {OtherApplication, Controller, Action, Tokens}} ->
{redirect, {OtherApplication, Controller, Action, Tokens}};
not_found ->
process_not_found("No routes matched the requested URL.", AppInfo, Req, Mode, SessionID)
end,
FinalResult = case Result of
{error, Payload} ->
process_error(Payload, AppInfo, Req, Mode, SessionID);
_ ->
Result
end,
FinalResult.
process_not_found(Message, #boss_app_info{ router_pid = RouterPid } = AppInfo, Req, Mode, SessionID) ->
case boss_router:handle(RouterPid, 404) of
{ok, {Application, Controller, Action, Tokens}} when Application =:= AppInfo#boss_app_info.application ->
Location = {Controller, Action, Tokens},
case catch load_and_execute(Mode, Location, AppInfo, Req, SessionID) of
{'EXIT', Reason} ->
{error, Reason};
{ok, Payload, Headers} ->
{not_found, Payload, Headers}
end;
{ok, OtherLocation} ->
{redirect, OtherLocation};
not_found ->
{not_found, [Message, " ",
"Additionally, no handler was found for processing 404 errors. ",
"You probably want to modify ", boss_files:routes_file(AppInfo#boss_app_info.application), " to prevent errors like this one."]}
end.
process_error(Payload, AppInfo, _Req, development, _SessionID) ->
error_logger:error_report(Payload),
ExtraMessage = case boss_router:handle(AppInfo#boss_app_info.router_pid, 500) of
undefined ->
["This message will appear in production; you may want to define a 500 handler in ", boss_files:routes_file(AppInfo#boss_app_info.application)];
_ ->
"(Don't worry, this message will not appear in production.)"
end,
{error, ["Error: <pre>", io_lib:print(Payload), "</pre>", "<p>", ExtraMessage, "</p>"], []};
process_error(Payload, #boss_app_info{ router_pid = RouterPid } = AppInfo, Req, Mode, SessionID) ->
error_logger:error_report(Payload),
case boss_router:handle(RouterPid, 500) of
{ok, {Application, Controller, Action, Tokens}} when Application =:= AppInfo#boss_app_info.application ->
ErrorLocation = {Controller, Action, Tokens},
case catch load_and_execute(Mode, ErrorLocation, AppInfo, Req, SessionID) of
{'EXIT', Reason} ->
{error, ["Error in 500 handler: <pre>", io_lib:print(Reason), "</pre>"], []};
Ok ->
Ok
end;
{ok, OtherLocation} ->
{redirect, OtherLocation};
not_found ->
{error, ["Error: <pre>", io_lib:print(Payload), "</pre>"], []}
end.
process_chunk_generator(_Req, 'HEAD', _Generator, _Acc) ->
ok;
process_chunk_generator(Req, Method, Generator, Acc) ->
case Generator(Acc) of
{output, Data, Acc1} ->
Length = iolist_size(Data),
mochiweb_socket:send(Req:socket(), [io_lib:format("~.16b\r\n", [Length]), Data, <<"\r\n">>]),
process_chunk_generator(Req, Method, Generator, Acc1);
done ->
mochiweb_socket:send(Req:socket(), ["0\r\n\r\n"]),
ok
end.
process_result(AppInfo, Req, {Status, Payload}) ->
process_result(AppInfo, Req, {Status, Payload, []});
process_result(_, _, {ok, Payload, Headers}) ->
{200, merge_headers(Headers, [{"Content-Type", "text/html"}]), Payload};
process_result(AppInfo, Req, {stream, Generator, Acc0}) ->
process_result(AppInfo, Req, {stream, Generator, Acc0, []});
process_result(_, _, {stream, Generator, Acc0, Headers}) ->
{200, merge_headers(Headers, [{"Content-Type", "text/html"}]), {stream, Generator, Acc0}};
process_result(AppInfo, Req, {moved, "http://"++Where, Headers}) ->
process_result(AppInfo, Req, {moved_external, "http://"++Where, Headers});
process_result(AppInfo, Req, {moved, "https://"++Where, Headers}) ->
process_result(AppInfo, Req, {moved_external, "https://"++Where, Headers});
process_result(AppInfo, Req, {moved, {Application, Controller, Action, Params}, Headers}) ->
RouterPid = if
AppInfo#boss_app_info.application =:= Application ->
AppInfo#boss_app_info.router_pid;
true ->
boss_web:router_pid(Application)
end,
ExtraParams = [{application, Application}, {controller, Controller}, {action, Action}],
URL = boss_erlydtl_tags:url(ExtraParams ++ Params, [
{host, Req:header(host)},
{application, AppInfo#boss_app_info.application},
{router_pid, RouterPid}]),
{301, [{"Location", URL}, {"Cache-Control", "no-cache"}|Headers], ""};
process_result(AppInfo, _, {moved, Where, Headers}) ->
{301, [{"Location", AppInfo#boss_app_info.base_url ++ Where}, {"Cache-Control", "no-cache"}|Headers], ""};
process_result(_, _, {moved_external, Where, Headers}) ->
{301, [{"Location", Where}, {"Cache-Control", "no-cache"}|Headers], ""};
process_result(AppInfo, Req, {redirect, "http://"++Where, Headers}) ->
process_result(AppInfo, Req, {redirect_external, "http://"++Where, Headers});
process_result(AppInfo, Req, {redirect, "https://"++Where, Headers}) ->
process_result(AppInfo, Req, {redirect_external, "https://"++Where, Headers});
process_result(AppInfo, Req, {redirect, {Application, Controller, Action, Params}, Headers}) ->
RouterPid = if
AppInfo#boss_app_info.application =:= Application ->
AppInfo#boss_app_info.router_pid;
true ->
boss_web:router_pid(Application)
end,
ExtraParams = [{application, Application}, {controller, Controller}, {action, Action}],
URL = boss_erlydtl_tags:url(ExtraParams ++ Params, [
{host, Req:header(host)},
{application, AppInfo#boss_app_info.application},
{router_pid, RouterPid}]),
{302, [{"Location", URL}, {"Cache-Control", "no-cache"}|Headers], ""};
process_result(AppInfo, _, {redirect, Where, Headers}) ->
{302, [{"Location", AppInfo#boss_app_info.base_url ++ Where}, {"Cache-Control", "no-cache"}|Headers], ""};
process_result(_, _, {redirect_external, Where, Headers}) ->
{302, [{"Location", Where}, {"Cache-Control", "no-cache"}|Headers], ""};
process_result(_, _, {unauthorized, Payload, Headers}) ->
{401, merge_headers(Headers, [{"Content-Type", "text/html"}]), Payload};
process_result(_, _, {not_found, Payload, Headers}) ->
{404, merge_headers(Headers, [{"Content-Type", "text/html"}]), Payload};
process_result(_, _, {error, Payload, Headers}) ->
{500, merge_headers(Headers, [{"Content-Type", "text/html"}]), Payload};
process_result(_, _, {StatusCode, Payload, Headers}) when is_integer(StatusCode) ->
{StatusCode, merge_headers(Headers, [{"Content-Type", "text/html"}]), Payload}.
load_and_execute(Mode, {Controller, _, _} = Location, AppInfo, Req, SessionID) when Mode =:= production; Mode =:= testing->
case lists:member(boss_files:web_controller(AppInfo#boss_app_info.application, Controller),
AppInfo#boss_app_info.controller_modules) of
true -> execute_action(Location, AppInfo, Req, SessionID);
false -> render_view(Location, AppInfo, Req, SessionID)
end;
load_and_execute(development, {"doc", ModelName, _}, AppInfo, Req, _SessionID) ->
case boss_load:load_models() of
{ok, ModelModules} ->
case lists:member(ModelName, lists:map(fun atom_to_list/1, ModelModules)) of
true ->
Model = list_to_atom(ModelName),
{Model, Edoc} = boss_model_manager:edoc_module(
boss_files:model_path(ModelName++".erl"), [{private, true}]),
{ok, edoc:layout(Edoc), []};
false ->
case boss_html_doc_template:render([
{application, AppInfo#boss_app_info.application},
{'_doc', AppInfo#boss_app_info.doc_prefix},
{'_base_url', AppInfo#boss_app_info.base_url},
{models, ModelModules}]) of
{ok, Payload} ->
{ok, Payload, []};
Err ->
Err
end
end;
{error, ErrorList} ->
render_errors(ErrorList, AppInfo, Req)
end;
load_and_execute(development, {Controller, _, _} = Location, AppInfo, Req, SessionID) ->
Res1 = boss_load:load_mail_controllers(),
Res2 = case Res1 of
{ok, _} -> boss_load:load_libraries();
_ -> Res1
end,
Res3 = case Res2 of
{ok, _} -> boss_load:load_view_lib_modules();
_ -> Res2
end,
Res4 = case Res3 of
{ok, _} -> boss_load:load_web_controllers();
_ -> Res3
end,
case Res4 of
{ok, Controllers} ->
case lists:member(boss_files:web_controller(AppInfo#boss_app_info.application, Controller),
lists:map(fun atom_to_list/1, Controllers)) of
true ->
case boss_load:load_models() of
{ok, _} ->
execute_action(Location, AppInfo, Req, SessionID);
{error, ErrorList} ->
render_errors(ErrorList, AppInfo, Req)
end;
false ->
render_view(Location, AppInfo, Req, SessionID)
end;
{error, ErrorList} ->
render_errors(ErrorList, AppInfo, Req)
end.
render_errors(ErrorList, AppInfo, Req) ->
case boss_html_error_template:render([{errors, ErrorList}, {request, Req},
{application, AppInfo#boss_app_info.application}]) of
{ok, Payload} ->
{ok, Payload, []};
Err ->
Err
end.
execute_action(Location, AppInfo, Req, SessionID) ->
execute_action(Location, AppInfo, Req, SessionID, []).
execute_action({Controller, Action}, AppInfo, Req, SessionID, LocationTrail) ->
execute_action({Controller, Action, []}, AppInfo, Req, SessionID, LocationTrail);
execute_action({Controller, Action, Tokens}, AppInfo, Req, SessionID, LocationTrail) when is_atom(Action) ->
execute_action({Controller, atom_to_list(Action), Tokens}, AppInfo, Req, SessionID, LocationTrail);
execute_action({Controller, Action, Tokens} = Location, AppInfo, Req, SessionID, LocationTrail) ->
case lists:member(Location, LocationTrail) of
true ->
{error, "Circular redirect!"};
false ->
% do not convert a list to an atom until we are sure the controller/action
% pair exists. this prevents a memory leak due to atom creation.
Module = list_to_atom(boss_files:web_controller(AppInfo#boss_app_info.application, Controller)),
ExportStrings = lists:map(
fun({Function, Arity}) -> {atom_to_list(Function), Arity} end,
Module:module_info(exports)),
RequestMethod = Req:request_method(),
ControllerInstance = case proplists:get_value("new", ExportStrings) of
1 -> Module:new(Req);
2 -> Module:new(Req, SessionID)
end,
AuthResult = case proplists:get_value("before_", ExportStrings) of
2 -> ControllerInstance:before_(Action);
4 -> ControllerInstance:before_(Action, RequestMethod, Tokens);
_ -> ok
end,
AuthInfo = case AuthResult of
ok ->
{ok, undefined};
OtherInfo ->
OtherInfo
end,
case AuthInfo of
{ok, Info} ->
EffectiveRequestMethod = case Req:request_method() of
'HEAD' -> 'GET';
Method -> Method
end,
ActionResult = case proplists:get_value(Action, ExportStrings) of
3 ->
ActionAtom = list_to_atom(Action),
ControllerInstance:ActionAtom(EffectiveRequestMethod, Tokens);
4 ->
ActionAtom = list_to_atom(Action),
ControllerInstance:ActionAtom(EffectiveRequestMethod, Tokens, Info);
_ ->
undefined
end,
LangResult = case proplists:get_value("lang_", ExportStrings) of
2 ->
ControllerInstance:lang_(Action);
3 ->
ControllerInstance:lang_(Action, Info);
_ ->
auto
end,
LangHeaders = case LangResult of
auto -> [];
_ -> [{"Content-Language", LangResult}]
end,
Result = case ActionResult of
undefined ->
render_view(Location, AppInfo, Req, SessionID, [{"_before", Info}], LangHeaders);
ActionResult ->
process_action_result({Location, Req, SessionID, [Location|LocationTrail]},
ActionResult, LangHeaders, AppInfo, Info)
end,
case proplists:get_value("after_", ExportStrings) of
3 ->
ControllerInstance:after_(Action, Result);
4 ->
ControllerInstance:after_(Action, Result, Info);
_ ->
Result
end;
{redirect, Where} ->
{redirect, process_redirect(Controller, Where, AppInfo)}
end
end.
process_location(Controller, [{_, _}|_] = Where, AppInfo) ->
{_, TheController, TheAction, CleanParams} = process_redirect(Controller, Where, AppInfo),
ControllerModule = list_to_atom(boss_files:web_controller(AppInfo#boss_app_info.application, Controller)),
ActionAtom = list_to_atom(TheAction),
{Tokens, []} = boss_controller_lib:convert_params_to_tokens(CleanParams, ControllerModule, ActionAtom),
{TheController, TheAction, Tokens}.
process_redirect(Controller, [{_, _}|_] = Where, AppInfo) ->
TheApplication = proplists:get_value(application, Where, AppInfo#boss_app_info.application),
TheController = proplists:get_value(controller, Where, Controller),
TheAction = proplists:get_value(action, Where),
CleanParams = lists:foldl(fun(Key, Vars) ->
proplists:delete(Key, Vars)
end, Where, [application, controller, action]),
{TheApplication, TheController, TheAction, CleanParams};
process_redirect(_, Where, _) ->
Where.
process_action_result(Info, ok, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {ok, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(Info, {ok, Data}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {ok, Data, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result({Location, Req, SessionID, _}, {ok, Data, Headers}, ExtraHeaders, AppInfo, AuthInfo) ->
render_view(Location, AppInfo, Req, SessionID, [{"_before", AuthInfo}|Data], merge_headers(Headers, ExtraHeaders));
process_action_result(Info, {render_other, OtherLocation}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {render_other, OtherLocation, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(Info, {render_other, OtherLocation, Data}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {render_other, OtherLocation, Data, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result({{Controller, _, _}, Req, SessionID, _}, {render_other, OtherLocation, Data, Headers}, ExtraHeaders, AppInfo, AuthInfo) ->
render_view(process_location(Controller, OtherLocation, AppInfo),
AppInfo, Req, SessionID, [{"_before", AuthInfo}|Data], merge_headers(Headers, ExtraHeaders));
process_action_result({{Controller, _, _}, Req, SessionID, LocationTrail}, {action_other, OtherLocation}, _, AppInfo, _) ->
execute_action(process_location(Controller, OtherLocation, AppInfo), AppInfo, Req, SessionID, LocationTrail);
process_action_result({_, Req, SessionID, LocationTrail}, not_found, _, AppInfo, _) ->
case boss_router:handle(AppInfo#boss_app_info.router_pid, 404) of
{ok, {Application, Controller, Action, Params}} when Application =:= AppInfo#boss_app_info.application ->
case execute_action({Controller, Action, Params}, AppInfo, Req, SessionID, LocationTrail) of
{ok, Payload, Headers} ->
{not_found, Payload, Headers};
Other ->
Other
end;
{ok, {OtherApplication, Controller, Action, Params}} ->
{redirect, {OtherApplication, Controller, Action, Params}};
not_found ->
{not_found, "The requested page was not found. Additionally, no handler was found for processing 404 errors."}
end;
process_action_result(Info, {redirect, Where}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {redirect, Where, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result({{Controller, _, _}, _, _, _}, {redirect, Where, Headers}, ExtraHeaders, AppInfo, _) ->
{redirect, process_redirect(Controller, Where, AppInfo), merge_headers(Headers, ExtraHeaders)};
process_action_result(Info, {json, Data}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {json, Data, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(Info, {json, Data, Headers}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {output, boss_json:encode(Data, AppInfo#boss_app_info.model_modules),
merge_headers(Headers, [{"Content-Type", "application/json"}])}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(Info, {jsonp, Callback, Data}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {jsonp, Callback, Data, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(Info, {jsonp, Callback, Data, Headers}, ExtraHeaders, AppInfo, AuthInfo) ->
JsonData = boss_json:encode(Data, AppInfo#boss_app_info.model_modules),
process_action_result(Info, {output, Callback ++ "(" ++ JsonData ++ ");",
merge_headers(Headers, [{"Content-Type", "application/javascript"}])}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(Info, {output, Payload}, ExtraHeaders, AppInfo, AuthInfo) ->
process_action_result(Info, {output, Payload, []}, ExtraHeaders, AppInfo, AuthInfo);
process_action_result(_, {output, Payload, Headers}, ExtraHeaders, _, _) ->
{ok, Payload, merge_headers(Headers, ExtraHeaders)};
process_action_result(_, Else, _, _, _) ->
Else.
render_view(Location, AppInfo, Req, SessionID) ->
render_view(Location, AppInfo, Req, SessionID, []).
render_view(Location, AppInfo, Req, SessionID, Variables) ->
render_view(Location, AppInfo, Req, SessionID, Variables, []).
render_view({Controller, Template, _}, AppInfo, Req, SessionID, Variables, Headers) ->
ViewPath = boss_files:web_view_path(Controller, Template),
LoadResult = boss_load:load_view_if_dev(AppInfo#boss_app_info.application, ViewPath, AppInfo#boss_app_info.translator_pid),
BossFlash = boss_flash:get_and_clear(SessionID),
SessionData = boss_session:get_session_data(SessionID),
case LoadResult of
{ok, Module} ->
{Lang, TranslationFun} = choose_translation_fun(AppInfo#boss_app_info.translator_pid,
Module:translatable_strings(), Req:header(accept_language),
proplists:get_value("Content-Language", Headers)),
RenderVars = BossFlash ++ [{"_lang", Lang}, {"_session", SessionData},
{"_base_url", AppInfo#boss_app_info.base_url}|Variables],
case Module:render([{"_vars", RenderVars}|RenderVars],
[{translation_fun, TranslationFun}, {locale, Lang},
{custom_tags_context, [
{host, Req:header(host)},
{application, atom_to_list(AppInfo#boss_app_info.application)},
{controller, Controller},
{action, Template},
{router_pid, AppInfo#boss_app_info.router_pid}]}]) of
{ok, Payload} ->
{ok, Payload, Headers};
Err ->
Err
end;
{error, not_found} ->
{not_found, io_lib:format("The requested template (~p) was not found.", [ViewPath]) };
{error, {File, [{0, _Module, "Failed to read file"}]}} ->
{not_found, io_lib:format("The requested template (~p) was not found.", [File]) };
{error, Error}->
render_errors([Error], AppInfo, Req)
end.
choose_translation_fun(_, _, undefined, undefined) ->
DefaultLang = boss_env:get_env(assume_locale, "en"),
{DefaultLang, none};
choose_translation_fun(TranslatorPid, Strings, AcceptLanguages, undefined) ->
DefaultLang = boss_env:get_env(assume_locale, "en"),
case mochiweb_util:parse_qvalues(AcceptLanguages) of
invalid_qvalue_string ->
{DefaultLang, none};
[{Lang, _}] ->
{Lang, boss_translator:fun_for(TranslatorPid, Lang)};
QValues when length(QValues) > 1 ->
{BestLang, BestNetQValue} = choose_language_from_qvalues(TranslatorPid, Strings, QValues),
case BestNetQValue of
0.0 -> {DefaultLang, none};
_ -> {BestLang, boss_translator:fun_for(TranslatorPid, BestLang)}
end
end;
choose_translation_fun(TranslatorPid, _, _, ContentLanguage) ->
{ContentLanguage, boss_translator:fun_for(TranslatorPid, ContentLanguage)}.
choose_language_from_qvalues(TranslatorPid, Strings, QValues) ->
% calculating translation coverage is costly so we start with the most preferred
% languages and work our way down
SortedQValues = lists:reverse(lists:keysort(2, QValues)),
AssumedLocale = boss_env:get_env(assume_locale, "en"),
AssumedLocaleQValue = proplists:get_value(AssumedLocale, SortedQValues, 0.0),
lists:foldl(
fun
({_, ThisQValue}, {BestLang, BestTranslationScore}) when BestTranslationScore >= ThisQValue ->
{BestLang, BestTranslationScore};
({ThisLang, ThisQValue}, {_, BestTranslationScore}) when ThisLang =:= AssumedLocale andalso
ThisQValue > BestTranslationScore ->
{ThisLang, ThisQValue}; % translation coverage is 100%
({ThisLang, ThisQValue}, {BestLang, BestTranslationScore}) ->
TranslationCoverage = translation_coverage(Strings, ThisLang, TranslatorPid),
TranslationScore = ThisQValue * TranslationCoverage +
AssumedLocaleQValue * (1-TranslationCoverage),
case TranslationScore > BestTranslationScore andalso TranslationCoverage > 0.0 of
true -> {ThisLang, TranslationScore};
false -> {BestLang, BestTranslationScore}
end
end, {"xx-bork", 0.0}, SortedQValues).
translation_coverage([], _, _) ->
0.0;
translation_coverage(Strings, Locale, TranslatorPid) ->
case boss_translator:is_loaded(TranslatorPid, Locale) of
true ->
lists:foldl(fun(String, Acc) ->
case boss_translator:lookup(TranslatorPid, String, Locale) of
undefined -> Acc;
_ -> Acc + 1
end
end, 0, Strings) / length(Strings);
false ->
0.0
end.
merge_headers(Headers1, Headers2) ->
HeadersToAdd = lists:foldl(fun(Key, Acc) ->
case proplists:is_defined(Key, Headers1) of
true ->
Acc;
false ->
proplists:lookup_all(Key, Headers2) ++ Acc
end
end, [], proplists:get_keys(Headers2)),
HeadersToAdd ++ Headers1.
make_log_file_name(Dir) ->
{{Y, M, D}, {Hour, Min, Sec}} = calendar:local_time(),
filename:join([Dir,
lists:flatten(io_lib:format("boss_error-~4..0B-~2..0B-~2..0B.~2..0B-~2..0B-~2..0B.log",
[Y, M, D, Hour, Min, Sec]))]).