1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2008-2012. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%%
-module(httpd_log).
-include("httpd.hrl").
-export([access_entry/8, error_entry/5, error_report_entry/5,
security_entry/5]).
%%%=========================================================================
%%% Internal Application API
%%%=========================================================================
-spec access_entry(Log :: term(), % Id of the log
NoLog :: term(), % What to return when no log is found
Info :: #mod{},
RFC931 :: string(),
AuthUser :: string(),
Date :: string(),
StatusCode :: pos_integer(),
Size :: 0 | pos_integer() | string()) ->
{Log :: atom() | pid(), Entry :: string()} | term() .
%% Somethime the size in the form of the content_length is put here, which
%% is actually in the form of a string
%% So it can either be the size as an integer, the size as a string
%% or, worst case scenario, bytes.
access_entry(Log, NoLog, Info, RFC931, AuthUser, Date, StatusCode,
SizeStrOrBytes)
when is_list(SizeStrOrBytes) ->
Size =
case (catch list_to_integer(SizeStrOrBytes)) of
I when is_integer(I) ->
%% This is from using the content_length (which is a string)
I;
_ ->
%% This is better than nothing
httpd_util:flatlength(SizeStrOrBytes)
end,
access_entry(Log, NoLog, Info, RFC931, AuthUser, Date, StatusCode, Size);
access_entry(Log, NoLog,
#mod{config_db = ConfigDB,
init_data = #init_data{peername = {_, RemoteHost}},
request_line = RequestLine,
parsed_header = Headers},
RFC931, AuthUser, Date, StatusCode, Size) ->
MakeEntry =
fun() ->
do_access_entry(ConfigDB, Headers, RequestLine,
RemoteHost, RFC931, AuthUser,
Date, StatusCode, Size)
end,
log_entry(Log, NoLog, ConfigDB, MakeEntry).
-spec error_entry(Log :: term(), % Id of the log
NoLog :: term(), % What to return when no log is found
Info :: #mod{},
Date :: string(),
Reason :: term()) ->
{Log :: atom() | pid(), Entry :: string()} | term().
error_entry(Log, NoLog,
#mod{config_db = ConfigDB,
init_data = #init_data{peername = {_, RemoteHost}},
request_uri = URI}, Date, Reason) ->
MakeEntry =
fun() ->
do_error_entry(ConfigDB, RemoteHost, URI, Date, Reason)
end,
log_entry(Log, NoLog, ConfigDB, MakeEntry).
-spec error_report_entry(Log :: term(),
NoLog :: term(),
ConfigDB :: term(),
Date :: string(),
ErrroStr :: string()) ->
{Log :: atom() | pid(), Entry :: string()} | term().
error_report_entry(Log, NoLog, ConfigDb, Date, ErrorStr) ->
MakeEntry = fun() -> io_lib:format("[~s], ~s~n", [Date, ErrorStr]) end,
log_entry(Log, NoLog, ConfigDb, MakeEntry).
-spec security_entry(Log :: term(),
NoLog :: term(),
ConfigDB :: term(),
Date :: string(),
Reason :: term()) ->
{Log :: atom() | pid(), Entry :: string()} | term().
security_entry(Log, NoLog, #mod{config_db = ConfigDB}, Date, Reason) ->
MakeEntry = fun() -> io_lib:format("[~s] ~s~n", [Date, Reason]) end,
log_entry(Log, NoLog, ConfigDB, MakeEntry).
log_entry(Log, NoLog, ConfigDb, MakeEntry) when is_function(MakeEntry) ->
case httpd_util:lookup(ConfigDb, Log) of
undefined ->
NoLog;
LogRef ->
{LogRef, MakeEntry()}
end.
%%%========================================================================
%%% Internal functions
%%%========================================================================
do_access_entry(ConfigDB, Headers, RequestLine,
RemoteHost, RFC931, AuthUser, Date, StatusCode,
Size) ->
case httpd_util:lookup(ConfigDB, log_format, common) of
common ->
lists:flatten(io_lib:format("~s ~s ~s [~s] \"~s\" ~w ~w~n",
[RemoteHost, RFC931, AuthUser, Date,
RequestLine,
StatusCode, Size]));
combined ->
Referer =
proplists:get_value("referer", Headers, "-"),
UserAgent =
proplists:get_value("user-agent",
Headers, "-"),
io_lib:format("~s ~s ~s [~s] \"~s\" ~w ~w ~s ~s~n",
[RemoteHost, RFC931, AuthUser, Date,
RequestLine, StatusCode, Size,
Referer, UserAgent])
end.
do_error_entry(ConfigDB, RemoteHost, undefined, Date, Reason) ->
case httpd_util:lookup(ConfigDB, error_log_format, pretty) of
pretty ->
io_lib:format("[~s] server crash for ~s, reason: ~n~p~n~n",
[Date, RemoteHost, Reason]);
compact ->
io_lib:format("[~s] server crash for ~s, reason: ~w~n",
[Date, RemoteHost, Reason])
end;
do_error_entry(ConfigDB, RemoteHost, URI, Date, Reason) ->
case httpd_util:lookup(ConfigDB, error_log_format, pretty) of
pretty ->
io_lib:format("[~s] access to ~s failed for ~s, reason: ~n~p~n",
[Date, URI, RemoteHost, Reason]);
compact ->
io_lib:format( "[~s] access to ~s failed for ~s, reason: ~w~n",
[Date, URI, RemoteHost, Reason])
end.
|
