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yaws_server.erl
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yaws_server.erl
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%%%----------------------------------------------------------------------
%%% File : yaws_server.erl
%%% Author : Claes Wikstrom <klacke@hyber.org>
%%% Purpose :
%%% Created : 16 Jan 2002 by Claes Wikstrom <klacke@hyber.org>
%%%----------------------------------------------------------------------
-module(yaws_server).
-author('klacke@hyber.org').
-compile(export_all).
%%-export([Function/Arity, ...]).
-behaviour(gen_server).
-include_lib("yaws/include/yaws.hrl").
-include_lib("yaws/include/yaws_api.hrl").
-include("yaws_debug.hrl").
-include_lib("kernel/include/file.hrl").
%% External exports
-export([start_link/0]).
%% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2]).
-import(filename, [join/1]).
-import(lists, [foreach/2, map/2, flatten/1, flatmap/2]).
-record(gs, {gconf,
group, %% list of #sconf{} s
ssl, %% ssl | nossl
l, %% listen socket
mnum = 0, %% dyn compiled erl module number
sessions = 0, %% number of HTTP sessions
reqs = 0}). %% number of HTTP requests
-record(urltype, {type, %% error | yaws | regular | directory | forbidden|appmod
finfo,
path,
fullpath,
dir, %% relative dir where the path leads to
%% flat | unflat need flat for authentication
data, %% Binary | FileDescriptor | DirListing | undefined
mime = "text/html", %% MIME type
q, %% query for GET requests
wwwauth = undefined %% or #auth{}
}).
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
start_link() ->
gen_server:start_link({local, yaws_server}, yaws_server, [], []).
status() ->
gen_server:call(?MODULE, status).
stats() ->
{S, Time} = status(),
{_GC, Srvs, _} = S,
Diff = calendar:time_difference(Time, calendar:local_time()),
G = fun(L) -> lists:reverse(lists:keysort(2, L)) end,
R= flatmap(
fun({_Pid, SCS}) ->
map(
fun(SC) ->
E = SC#sconf.ets,
L = ets:match(E, {{urlc_total, '$1'}, '$2'}),
{SC#sconf.servername,
flatten(yaws:fmt_ip(SC#sconf.listen)),
G(map(fun(P) -> list_to_tuple(P) end, L))}
end, SCS)
end, Srvs),
{Diff, R}.
get_app_args() ->
AS=init:get_arguments(),
Debug = case application:get_env(yaws, debug) of
undefined ->
lists:member({yaws, ["debug"]}, AS);
{ok, Val} ->
Val
end,
Trace = case application:get_env(yaws, trace) of
undefined ->
case {lists:member({yaws, ["trace", "http"]}, AS),
lists:member({yaws, ["trace", "traffic"]}, AS)} of
{true, _} ->
{true, http};
{_, true} ->
{true, traffic};
_ ->
false
end;
{ok, http} ->
{true, http};
{ok, traffic} ->
{true, traffic};
_ ->
false
end,
Conf = case application:get_env(yaws, conf) of
undefined ->
find_c(AS);
{ok, File} ->
{file, File}
end,
RunMod = case application:get_env(yaws, runmod) of
undefined ->
find_runmod(AS);
{ok,Mod} ->
{ok,Mod}
end,
Embed = case application:get_env(yaws, embedded) of
undefined ->
false;
{ok, Val0} ->
Val0
end,
{Debug, Trace, Conf, RunMod, Embed}.
find_c([{conf, [File]} |_]) ->
{file, File};
find_c([_|T]) ->
find_c(T);
find_c([]) ->
false.
find_runmod([{runmod, [Mod]} |_]) ->
{ok,l2a(Mod)};
find_runmod([_|T]) ->
find_runmod(T);
find_runmod([]) ->
false.
l2a(L) when list(L) -> list_to_atom(L);
l2a(A) when atom(A) -> A.
%%----------------------------------------------------------------------
%% Func: init/1
%% Returns: {ok, State} |
%% {ok, State, Timeout} |
%% ignore |
%% {stop, Reason}
%%----------------------------------------------------------------------
init([]) ->
put(start_time, calendar:local_time()), %% for uptime
{Debug, Trace, Conf, RunMod, Embed} = get_app_args(),
case Embed of
false ->
case yaws_config:load(Conf, Trace, Debug) of
{ok, Gconf, Sconfs} ->
erase(logdir),
?Debug("Conf = ~p~n", [?format_record(Gconf, gconf)]),
yaws_log:setdir(Gconf#gconf.logdir, Sconfs),
case Gconf#gconf.trace of
{true, What} ->
yaws_log:open_trace(What);
_ ->
ok
end,
init2(Gconf, Sconfs, RunMod, true);
{error, E} ->
case erase(logdir) of
undefined ->
error_logger:format("Bad conf: ~p~n", [E]),
init:stop(),
{stop, E};
Dir ->
yaws_log:setdir(Dir, []),
yaws_log:sync_errlog("bad conf: ~s~n",[E]),
init:stop(),
{stop, E}
end
end;
true ->
init2(yaws_config:make_default_gconf(Debug), [], undef, true)
end.
init2(Gconf, Sconfs, RunMod, FirstTime) ->
lists:foreach(
fun(D) ->
code:add_pathz(D)
end, Gconf#gconf.ebin_dir),
process_flag(trap_exit, true),
%% start user provided application
case RunMod of
{ok,Mod} ->
runmod(Mod);
_ ->
false
end,
%% start the individual server processes
L = lists:map(
fun(Group) ->
proc_lib:start_link(?MODULE, gserv, [Gconf, Group])
end, Sconfs),
L2 = lists:zf(fun({error, F, A}) ->
yaws_log:sync_errlog(F, A),
false;
({_Pid, _SCs}) ->
true;
(none) ->
false
end, L),
?Debug("L=~p~n", [L]),
if
FirstTime == true ->
proc_lib:spawn_link(yaws_ctl, start,
[self(), Gconf#gconf.uid]);
true ->
ok
end,
{ok, {Gconf, L2, 0}}.
%%----------------------------------------------------------------------
%% Func: handle_call/3
%% Returns: {reply, Reply, State} |
%% {reply, Reply, State, Timeout} |
%% {noreply, State} |
%% {noreply, State, Timeout} |
%% {stop, Reason, Reply, State} | (terminate/2 is called)
%% {stop, Reason, State} (terminate/2 is called)
%%----------------------------------------------------------------------
handle_call(status, _From, State) ->
Reply = {State, get(start_time)},
{reply, Reply, State};
handle_call(pids, _From, State) -> %% for gprof
L = lists:map(fun(X) ->element(1, X) end, element(2, State)),
{reply, [self() | L], State};
handle_call(mnum, _From, {GC, Group, Mnum}) ->
{reply, Mnum+1, {GC, Group, Mnum+1}};
handle_call({setconf, GC, Groups}, _From, State) ->
%% First off, terminate all currently running processes
Curr = lists:map(fun(X) ->element(1, X) end, element(2, State)),
lists:foreach(fun(Pid) ->
Pid ! {self(), stop},
receive
{Pid, ok} ->
ok
end
end, Curr),
case init2(GC, Groups, undef, false) of
{ok, State2} ->
{reply, ok, State2};
Err ->
{reply, Err, {GC, [], 0}}
end.
%%----------------------------------------------------------------------
%% Func: handle_cast/2
%% Returns: {noreply, State} |
%% {noreply, State, Timeout} |
%% {stop, Reason, State} (terminate/2 is called)
%%----------------------------------------------------------------------
handle_cast(_Msg, State) ->
{noreply, State}.
%%----------------------------------------------------------------------
%% Func: handle_info/2
%% Returns: {noreply, State} |
%% {noreply, State, Timeout} |
%% {stop, Reason, State} (terminate/2 is called)
%%----------------------------------------------------------------------
handle_info(_Msg, State) ->
?Debug("GOT ~p~n", [_Msg]),
{noreply, State}.
%%----------------------------------------------------------------------
%% Func: terminate/2
%% Purpose: Shutdown the server
%% Returns: any (ignored by gen_server)
%%----------------------------------------------------------------------
terminate(_Reason, _State) ->
ok.
%% we search and setup www authenticate for each directory
%% specified as an auth directory. These are merged with server conf.
setup_auth(SC) ->
?f(lists:map(fun(Auth) ->
add_yaws_auth(Auth#auth.dir, Auth)
end, SC#sconf.authdirs)).
add_yaws_auth(Dirs, A) ->
lists:map(
fun(Dir) ->
case file:consult([Dir, [$/|".yaws_auth"]]) of
{ok, [{realm, Realm} |TermList]} ->
{Dir, A#auth{realm = Realm,
users = TermList++A#auth.users}};
{ok, TermList} ->
{Dir, A#auth{users = TermList++A#auth.users}};
{error, enoent} ->
{Dir, A};
_Err ->
error_logger:format("Bad .yaws_auth file in dir ~p~n", [Dir]),
{Dir, A}
end
end, Dirs).
do_listen(SC) ->
case SC#sconf.ssl of
undefined ->
{nossl, gen_tcp:listen(SC#sconf.port, opts(SC))};
SSL ->
{ssl, ssl:listen(SC#sconf.port, ssl_opts(SC, SSL))}
end.
set_writeable(Dir) ->
{ok, FI} = file:read_file_info(Dir),
Mode = 8#777,
file:write_file_info(Dir, FI#file_info{mode = Mode}).
gserv(_, []) ->
proc_lib:init_ack(none);
%% One server per IP we listen to
gserv(GC, Group0) ->
process_flag(trap_exit, true),
?TC([{record, GC, gconf}]),
Group = map(fun(SC) ->
E = ets:new(yaws_code, [public, set]),
ets:insert(E, {num_files, 0}),
ets:insert(E, {num_bytes, 0}),
Auth = setup_auth(SC),
SC#sconf{ets = E,
authdirs = Auth}
end, Group0),
SC = hd(Group),
case do_listen(SC) of
{SSLBOOL, {ok, Listen}} ->
error_logger:info_msg("Listening to ~s:~w for servers ~p~n",
[yaws:fmt_ip(SC#sconf.listen),
SC#sconf.port,
catch map(fun(S) -> S#sconf.servername end,
Group)]),
file:make_dir("/tmp/yaws"),
set_writeable("/tmp/yaws"),
Tdir = "/tmp/yaws/" ++ GC#gconf.uid,
file:make_dir(Tdir),
Files = case file:list_dir(Tdir) of
{ok, Files0} ->
Files0;
{error, Reason} ->
error_logger:format("Failed to list ~p probably"
"due to permission errs: ~p",
[Tdir, Reason]),
proc_lib:init_ack({error, "Can't list dir "
++ Tdir}),
exit(normal)
end,
lists:foreach(
fun(F) -> file:delete(Tdir ++ "/" ++ F) end, Files),
proc_lib:init_ack({self(), Group}),
GS = #gs{gconf = GC,
group = Group,
ssl = SSLBOOL,
l = Listen},
acceptor(GS),
gserv(GS, [], 0);
{_,Err} ->
error_logger:format("Failed to listen ~s:~w : ~p~n",
[yaws:fmt_ip(SC#sconf.listen),
SC#sconf.port, Err]),
proc_lib:init_ack({error, "Can't listen to socket: ~p ",[Err]}),
exit(normal)
end.
gserv(GS, Ready, Rnum) ->
receive
{From , status} ->
From ! {self(), GS},
gserv(GS, Ready, Rnum);
{From, next} when Ready == [] ->
acceptor(GS),
gserv(GS, Ready, Rnum);
{From, next} ->
[R|RS] = Ready,
R ! {self(), accept},
gserv(GS, RS, Rnum-1);
{From, done_client, Int} ->
GS2 = GS#gs{sessions = GS#gs.sessions + 1,
reqs = GS#gs.reqs + Int},
if
Rnum == 8 ->
From ! {self(), stop},
gserv(GS2, Ready, Rnum);
Rnum < 8 ->
gserv(GS2, [From | Ready], Rnum+1)
end;
{'EXIT', _Pid, _} ->
gserv(GS, Ready, Rnum);
{From, stop} ->
unlink(From),
{links, Ls} = process_info(self(), links),
lists:foreach(fun(X) -> unlink(X), exit(X, kill) end, Ls),
From ! {self(), ok},
exit(normal)
end.
opts(SC) ->
[binary,
{ip, SC#sconf.listen},
{packet, http},
{reuseaddr, true},
{active, false}
].
ssl_opts(SC, SSL) ->
Opts = [
binary,
{ip, SC#sconf.listen},
{packet, 0},
{active, false} | ssl_opts(SSL)],
?Debug("SSL opts ~p~n", [Opts]),
Opts.
ssl_opts(SSL) ->
L = [if SSL#ssl.keyfile /= undefined ->
{keyfile, SSL#ssl.keyfile};
true ->
false
end,
if SSL#ssl.certfile /= undefined ->
{certfile, SSL#ssl.certfile};
true ->
false
end,
if SSL#ssl.cacertfile /= undefined ->
{cacertfile, SSL#ssl.cacertfile};
true ->
false
end,
if SSL#ssl.verify /= undefined ->
{verify, SSL#ssl.verify};
true ->
false
end,
if SSL#ssl.password /= undefined ->
{password, SSL#ssl.password};
true ->
false
end,
if SSL#ssl.ciphers /= undefined ->
{ciphers, SSL#ssl.ciphers};
true ->
false
end
],
filter_false(L).
filter_false(L) ->
[X || X <- L, X /= false].
do_accept(GS) when GS#gs.ssl == nossl ->
gen_tcp:accept(GS#gs.l);
do_accept(GS) when GS#gs.ssl == ssl ->
ssl:accept(GS#gs.l).
acceptor(GS) ->
proc_lib:spawn_link(yaws_server, acceptor0, [GS, self()]).
acceptor0(GS, Top) ->
?TC([{record, GS, gs}]),
X = do_accept(GS),
Top ! {self(), next},
case X of
{ok, Client} ->
case (GS#gs.gconf)#gconf.trace of %% traffic trace
{true, _} ->
{ok, {IP, Port}} = case GS#gs.ssl of
ssl ->
ssl:peername(Client);
nossl ->
inet:peername(Client)
end,
Str = ?F("New (~p) connection from ~s:~w~n",
[GS#gs.ssl, yaws:fmt_ip(IP),Port]),
yaws_log:trace_traffic(from_client, Str);
_ ->
ok
end,
Res = (catch aloop(Client, GS, 0)),
?Debug("RES = ~p~n", [Res]),
if
GS#gs.ssl == nossl ->
gen_tcp:close(Client);
GS#gs.ssl == ssl ->
ssl:close(Client)
end,
case Res of
{ok, Int} when integer(Int) ->
Top ! {self(), done_client, Int};
{'EXIT', normal} ->
Top ! {self(), done_client, 0};
{'EXIT', Reason} ->
yaws_log:errlog("~p~n", [Reason]),
Top ! {self(), done_client, 0}
end,
%% we cache processes
receive
{Top, stop} ->
exit(normal);
{Top, accept} ->
acceptor0(GS, Top)
end;
_ ->
exit(normal)
end.
%%%----------------------------------------------------------------------
%%% Internal functions
%%%----------------------------------------------------------------------
aloop(CliSock, GS, Num) when GS#gs.ssl == nossl ->
?TC([{record, GS, gs}]),
case http_get_headers(CliSock, GS#gs.gconf) of
done ->
{ok, Num};
{Req, H} ->
Sconf = pick_sconf(GS#gs.gconf, H, GS#gs.group),
?Debug("Sconf: ~p", [?format_record(Sconf, sconf)]),
?TC([{record, Sconf, sconf}]),
?Debug("Headers = ~p~n", [?format_record(H, headers)]),
?Debug("Request = ~p~n", [?format_record(Req, http_request)]),
Res = apply(yaws_server, Req#http_request.method,
[CliSock, GS#gs.gconf, Sconf, Req, H]),
maybe_access_log(CliSock, Sconf, Req),
case Res of
continue ->
aloop(CliSock, GS, Num+1);
done ->
{ok, Num+1}
end
end;
aloop(CliSock, GS, Num) when GS#gs.ssl == ssl ->
?TC([{record, GS, gs}]),
case yaws_ssl:ssl_get_headers(CliSock, GS#gs.gconf) of
done ->
{ok, Num};
{ok, Req, H, Trail} ->
put(ssltrail, Trail), %% hack hack hack
Sconf = hd(GS#gs.group),
Res = apply(yaws_server, Req#http_request.method,
[CliSock, GS#gs.gconf, Sconf, Req, H]),
maybe_access_log(CliSock, Sconf, Req),
case Res of
continue ->
aloop(CliSock, GS, Num+1);
done ->
{ok, Num+1}
end
end.
pick_sconf(GS, H, Group) ->
case H#headers.host of
undefined ->
hd(Group);
Host ->
pick_host(GS, Host, Group, Group)
end.
pick_host(_GC, Host, [H|_T], _Group) when H#sconf.servername == Host ->
H;
pick_host(GC, Host, [_|T], Group) ->
pick_host(GC, Host, T, Group);
pick_host(GC, Host, [], Group) ->
% none matched try with servername:rport
pick_host_rport(GC, Host, Group, Group).
pick_host_rport(GC, Host, [H|T], Group) when integer(H#sconf.rport) ->
% check if Host matches servername : rport
Name = servername_sans_port(H#sconf.servername),
ServerName =
case H#sconf.rport of
80 -> Name;
443 -> Name;
_ -> Name++[$:|integer_to_list(H#sconf.rport)]
end,
if
Host == ServerName -> H;
Host /= ServerName -> pick_host_rport(GC, Host, T, Group)
end;
pick_host_rport(GC, Host, [_|T], Group) ->
pick_host_rport(GC, Host, T, Group);
pick_host_rport(GC, Host, [], Group) ->
H = hd(Group),
yaws_debug:dinfo(GC, "Got Host: header ~p which didn't match any host "
"field in config, ~npicking the first one : ~p~n ",
[Host, H#sconf.servername]),
H.
inet_peername(Sock, SC) ->
case SC#sconf.ssl of
undefined ->
inet:peername(Sock);
_SSL ->
ssl:peername(Sock)
end.
maybe_access_log(CliSock, SC, Req) ->
?TC([{record, SC, sconf}]),
Status = case erase(status_code) of
undefined -> "-";
I -> integer_to_list(I)
end,
Len = case erase(content_length) of
undefined ->
"-";
I2 -> integer_to_list(I2)
end,
case SC#sconf.access_log of
true ->
{ok, {Ip, _Port}} = inet_peername(CliSock, SC),
Path = get_path(Req#http_request.path),
Meth = atom_to_list(Req#http_request.method),
yaws_log:accesslog(SC#sconf.servername, Ip,
[Meth, $\s, Path] , Status, Len);
false ->
ignore
end.
get_path({abs_path, Path}) ->
% io:format("Path = ~p\n", [Path]),
% P = yaws_api:url_decode(Path),
% io:format("P = ~p\n", [P]),
% P.
yaws_api:url_decode(Path).
do_recv(Sock, Num, TO, nossl) ->
gen_tcp:recv(Sock, Num, TO);
do_recv(Sock, Num, _TO, ssl) ->
case erase(ssltrail) of %% hack from above ...
undefined ->
split_recv(ssl:recv(Sock, 0), Num); %% ignore Num val ??? TO ??
Bin ->
{ok, Bin}
end.
%% weird ... ssl module doesn't respect Num arg for binary socks
split_recv({ok, B}, Num) when integer(Num) ->
case B of
<<Bin:Num/binary , Tail/binary>> ->
put(ssltrail, Tail),
{ok, Bin};
_ ->
{ok, B}
end;
split_recv(E, _) ->
E.
cli_recv(S, Num, GC, SslBool) when GC#gconf.trace == false ->
do_recv(S, Num, GC#gconf.timeout, SslBool);
cli_recv(S, Num, GC, SslBool) ->
Res = do_recv(S, Num, GC#gconf.timeout, SslBool),
case Res of
{ok, Val} when tuple(Val) ->
yaws_log:trace_traffic(from_client, ?F("~p~n", [Val]));
{error, What} ->
yaws_log:trace_traffic(from_client, ?F("~n~p~n", [What]));
{ok, http_eoh} ->
ok;
{ok, Val} when GC#gconf.trace == {true, traffic} ->
yaws_log:trace_traffic(from_client, Val);
{ok, Val} ->
{ok, Val}
end,
Res.
gen_tcp_send(S, Data, SC, GC) ->
Res = case SC#sconf.ssl of
undefined ->
gen_tcp:send(S, Data);
_SSL ->
ssl:send(S, Data)
end,
case Res of
ok ->
ok;
Err ->
yaws_debug:derror(GC, "Failed to send ~p on socket ~p: ~p~n",
[strip(Data), S, Err]),
exit(normal)
end.
strip(Data) ->
L = list_to_binary([Data]),
case L of
<<Head:50/binary, _/binary>> ->
<<Head/binary, ".....">>;
_ ->
L
end.
http_get_headers(CliSock, GC) ->
?TC([{record, GC, gconf}]),
inet:setopts(CliSock, [{packet, http}]),
case cli_recv(CliSock, 0, GC, nossl) of
{ok, R} when element(1, R) == http_request ->
H = http_get_headers(CliSock, R, GC, #headers{}),
{R, H};
{error, timeout} ->
done;
{error, closed} ->
done;
_Err ->
?Debug("Got ~p~n", [_Err]),
exit(normal)
end.
http_get_headers(CliSock, Req, GC, H) ->
?TC([{record, GC, gconf}]),
case cli_recv(CliSock, 0, GC, nossl) of
{ok, {http_header, _Num, 'Host', _, Host}} ->
http_get_headers(CliSock, Req, GC, H#headers{host = Host});
{ok, {http_header, _Num, 'Connection', _, Conn}} ->
http_get_headers(CliSock, Req, GC, H#headers{connection = Conn});
{ok, {http_header, _Num, 'Accept', _, Accept}} ->
http_get_headers(CliSock, Req, GC, H#headers{accept = Accept});
{ok, {http_header, _Num, 'If-Modified-Since', _, X}} ->
http_get_headers(CliSock, Req, GC,
H#headers{if_modified_since = X});
{ok, {http_header, _Num, 'If-Match', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{if_match = X});
{ok, {http_header, _Num, 'If-None-Match', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{if_none_match = X});
{ok, {http_header, _Num, 'If-Range', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{if_range = X});
{ok, {http_header, _Num, 'If-Unmodified-Since', _, X}} ->
http_get_headers(CliSock, Req, GC,
H#headers{if_unmodified_since = X});
{ok, {http_header, _Num, 'Range', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{range = X});
{ok, {http_header, _Num, 'Referer',_, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{referer = X});
{ok, {http_header, _Num, 'User-Agent', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{user_agent = X});
{ok, {http_header, _Num, 'Accept-Ranges', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{accept_ranges = X});
{ok, {http_header, _Num, 'Cookie', _, X}} ->
http_get_headers(CliSock, Req, GC,
H#headers{cookie = [X|H#headers.cookie]});
{ok, {http_header, _Num, 'Keep-Alive', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{keep_alive = X});
{ok, {http_header, _Num, 'Content-Length', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{content_length = X});
{ok, {http_header, _Num, 'Content-Type', _, X}} ->
http_get_headers(CliSock, Req, GC, H#headers{content_type = X});
{ok, {http_header, _Num, 'Authorization', _, X}} ->
http_get_headers(CliSock, Req, GC,
H#headers{authorization = parse_auth(X)});
{ok, http_eoh} ->
H;
{ok, X} ->
?Debug("OTHER header ~p~n", [X]),
http_get_headers(CliSock, Req, GC,
H#headers{other=[X|H#headers.other]});
_Err ->
exit(normal)
end.
inet_setopts(SC, S, Opts) when SC#sconf.ssl == undefined ->
inet:setopts(S, Opts);
inet_setopts(_,_,_) ->
ok. %% noop for ssl
%% ret: continue | done
'GET'(CliSock, GC, SC, Req, Head) ->
?TC([{record, GC, gconf}, {record, SC, sconf}]),
?Debug("GET ~p", [?format_record(Req, http_request)]),
ok = inet_setopts(SC, CliSock, [{packet, raw}, binary]),
flush(SC, CliSock, Head#headers.content_length),
ARG = make_arg(CliSock, Head, Req, GC, SC),
handle_request(CliSock, GC, SC, Req, Head, ARG, 0).
'POST'(CliSock, GC, SC, Req, Head) ->
?TC([{record, GC, gconf}, {record, SC, sconf}]),
?Debug("POST Req=~p H=~p~n", [?format_record(Req, http_request),
?format_record(Head, headers)]),
ok = inet_setopts(SC, CliSock, [{packet, raw}, binary]),
PPS = SC#sconf.partial_post_size,
Bin = case Head#headers.content_length of
undefined ->
case Head#headers.connection of
"close" ->
get_client_data(CliSock, all, GC,
is_ssl(SC#sconf.ssl));
_ ->
?Debug("No content length header ",[]),
exit(normal)
end;
Len when integer(PPS) ->
Int_len = list_to_integer(Len),
if
Int_len == 0 ->
<<>>;
PPS < Int_len ->
{partial, get_client_data(CliSock, PPS, GC,
is_ssl(SC#sconf.ssl))};
true ->
get_client_data(CliSock, Int_len, GC,
is_ssl(SC#sconf.ssl))
end;
Len when PPS == nolimit ->
Int_len = list_to_integer(Len),
if
Int_len == 0 ->
<<>>;
true ->
get_client_data(CliSock, Int_len, GC,
is_ssl(SC#sconf.ssl))
end
end,
?Debug("POST data = ~s~n", [binary_to_list(un_partial(Bin))]),
ARG = make_arg(CliSock, Head, Req, GC, SC),
ARG2 = ARG#arg{clidata = Bin},
handle_request(CliSock, GC, SC, Req, Head, ARG2, size(un_partial(Bin))).
is_ssl(undefined) ->
nossl;
is_ssl(R) when record(R, ssl) ->
ssl.
un_partial({partial, Bin}) ->
Bin;
un_partial(Bin) ->
Bin.
%% will throw
'HEAD'(CliSock, GC, SC, Req, Head) ->
'GET'(CliSock, GC, SC, Req, Head).
'TRACE'(_CliSock, _GC, _SC, _Req, _Head) ->
nyi.
'OPTIONS'(CliSock, GC, SC, Req, Head) ->
?Debug("OPTIONS", []),
ok = inet_setopts(SC, CliSock, [{packet, raw}, binary]),
flush(SC, CliSock, Head#headers.content_length),
_ARG = make_arg(CliSock, Head, Req, GC, SC),
?Debug("OPTIONS delivering", []),
deliver_options(CliSock, Req, GC, SC).
make_arg(CliSock, Head, Req, _GC, SC) ->
?TC([{record, _GC, gconf}, {record, SC, sconf}]),
#arg{clisock = CliSock,
headers = Head,
req = Req,
opaque = SC#sconf.opaque,
pid = self(),
docroot = SC#sconf.docroot}.
handle_request(CliSock, GC, SC, Req, H, ARG, N) ->
?TC([{record, GC, gconf}, {record, SC, sconf}]),
UT = url_type(GC, SC, get_path(Req#http_request.path)),
ARG2 = ARG#arg{fullpath=UT#urltype.fullpath},
case SC#sconf.authdirs of
[] ->
handle_ut(CliSock, GC, SC, Req, H, ARG2, UT, N);
_Adirs ->
%% we have authentication enabled, check auth
UT2 = unflat(UT),
case is_authenticated(SC, UT2, Req, H) of
true ->
handle_ut(CliSock, GC, SC, Req, H, ARG2, UT2, N);
{false, Realm} ->
deliver_401(CliSock, Req, GC, Realm, SC)
end
end.
unflat(U) ->
U2 = case U#urltype.path of
{noflat, F} ->
U#urltype{path = lists:flatten(F)};
_ ->
U
end,
U2.
is_authdir(Req_dir, [{Auth_dir, Auth}|T]) ->
case lists:prefix(Auth_dir, Req_dir) of
true ->
{true, Auth};
false ->
is_authdir(Req_dir, T)
end;
is_authdir(_, []) ->
false.
is_authenticated(SC, UT, _Req, H) ->
case is_authdir(UT#urltype.path, SC#sconf.authdirs) of
{true, #auth{dir = _Dir, realm = Realm, users = Users}} ->
case H#headers.authorization of
undefined ->
{false, Realm};
{User, Password} ->
case lists:member({User, Password}, Users) of
true ->
true;
false ->
{false, "Got username"}
end
end;
false ->
true
end.
handle_ut(CliSock, GC, SC, Req, H, ARG, UT, N) ->
case UT#urltype.type of
error ->
%deliver_404(CliSock, GC, SC, Req, SC);
A2 = ARG#arg{querydata = UT#urltype.q},
DCC = req_to_dcc(Req),
make_dyn_headers(DCC, Req),
do_appmod(SC#sconf.errormod_404, CliSock, GC, SC,
Req, H, [A2, GC, SC], UT, N);
directory ->
P = UT#urltype.dir,
yaws_ls:list_directory(CliSock, UT#urltype.data, P, Req, GC, SC);
regular ->
deliver_file(CliSock, GC, SC, Req, H, UT);
yaws ->
do_yaws(CliSock, GC, SC, Req, H,
[ARG#arg{querydata = UT#urltype.q}], UT, N);
forbidden ->
deliver_403(CliSock, Req, GC, SC);
redir_dir ->