Commit | Line | Data |
---|---|---|
048ac115 FT |
1 | /* |
2 | ashd - A Sane HTTP Daemon | |
3 | Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com> | |
4 | ||
5 | This program is free software: you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation, either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | #include <stdlib.h> | |
20 | #include <stdio.h> | |
21 | #include <unistd.h> | |
22 | #include <string.h> | |
23 | #include <errno.h> | |
24 | #include <sys/poll.h> | |
25 | #include <time.h> | |
26 | #include <sys/time.h> | |
27 | ||
28 | #ifdef HAVE_CONFIG_H | |
29 | #include <config.h> | |
30 | #endif | |
31 | #include <utils.h> | |
32 | #include <log.h> | |
33 | #include <req.h> | |
34 | #include <proc.h> | |
35 | ||
36 | #define DEFFORMAT "%{%Y-%m-%d %H:%M:%S}t %m %u %A \"%G\"" | |
37 | ||
38 | static int ch; | |
39 | static FILE *out; | |
40 | static int flush = 1; | |
41 | static char *format; | |
42 | static time_t now; | |
43 | ||
44 | static void qputs(char *s, FILE *o) | |
45 | { | |
46 | for(; *s; s++) { | |
47 | if(*s == '\"') { | |
48 | fputs("\\\"", o); | |
49 | } else if(*s == '\\') { | |
50 | fputs("\\\\", o); | |
51 | } else if(*s == '\n') { | |
52 | fputs("\\n", o); | |
53 | } else if(*s == '\t') { | |
54 | fputs("\\t", o); | |
55 | } else if((*s < 32) || (*s >= 128)) { | |
56 | fprintf(o, "\\x%02x", *s); | |
57 | } else { | |
58 | fputc(*s, o); | |
59 | } | |
60 | } | |
61 | } | |
62 | ||
63 | static void logitem(struct hthead *req, char o, char *d) | |
64 | { | |
65 | char *h, *p; | |
66 | char buf[1024]; | |
67 | struct timeval tv; | |
68 | ||
69 | switch(o) { | |
70 | case '%': | |
71 | putc('%', out); | |
72 | break; | |
73 | case 'h': | |
74 | if((h = getheader(req, d)) == NULL) { | |
75 | putc('-', out); | |
76 | } else { | |
77 | qputs(h, out); | |
78 | } | |
79 | break; | |
80 | case 'u': | |
81 | qputs(req->url, out); | |
82 | break; | |
83 | case 'U': | |
84 | strcpy(buf, req->url); | |
85 | if((p = strchr(buf, '?')) != NULL) | |
86 | *p = 0; | |
87 | qputs(buf, out); | |
88 | break; | |
89 | case 'm': | |
90 | qputs(req->method, out); | |
91 | break; | |
92 | case 'r': | |
93 | qputs(req->rest, out); | |
94 | break; | |
95 | case 'v': | |
96 | qputs(req->ver, out); | |
97 | break; | |
98 | case 't': | |
99 | if(!*d) | |
100 | d = "%a, %d %b %Y %H:%M:%S %z"; | |
101 | strftime(buf, sizeof(buf), d, localtime(&now)); | |
102 | qputs(buf, out); | |
103 | break; | |
104 | case 'T': | |
105 | if(!*d) | |
106 | d = "%a, %d %b %Y %H:%M:%S %z"; | |
107 | strftime(buf, sizeof(buf), d, gmtime(&now)); | |
108 | qputs(buf, out); | |
109 | break; | |
110 | case 's': | |
111 | gettimeofday(&tv, NULL); | |
112 | fprintf(out, "%06i", (int)tv.tv_usec); | |
113 | break; | |
114 | case 'A': | |
115 | logitem(req, 'h', "X-Ash-Address"); | |
116 | break; | |
117 | case 'H': | |
118 | logitem(req, 'h', "Host"); | |
119 | break; | |
120 | case 'R': | |
121 | logitem(req, 'h', "Referer"); | |
122 | break; | |
123 | case 'G': | |
124 | logitem(req, 'h', "User-Agent"); | |
125 | break; | |
126 | } | |
127 | } | |
128 | ||
129 | static void logreq(struct hthead *req) | |
130 | { | |
131 | char *p, *p2; | |
132 | char d[strlen(format)]; | |
133 | char o; | |
134 | ||
135 | p = format; | |
136 | while(*p) { | |
137 | if(*p == '%') { | |
138 | p++; | |
139 | if(*p == '{') { | |
140 | p++; | |
141 | if((p2 = strchr(p, '}')) == NULL) | |
142 | continue; | |
143 | memcpy(d, p, p2 - p); | |
144 | d[p2 - p] = 0; | |
145 | p = p2 + 1; | |
146 | } else { | |
147 | d[0] = 0; | |
148 | } | |
149 | o = *p++; | |
150 | if(o == 0) | |
151 | break; | |
152 | logitem(req, o, d); | |
153 | } else { | |
154 | fputc(*p++, out); | |
155 | } | |
156 | } | |
157 | fputc('\n', out); | |
158 | if(flush) | |
159 | fflush(out); | |
160 | } | |
161 | ||
162 | static void serve(struct hthead *req, int fd) | |
163 | { | |
164 | now = time(NULL); | |
165 | if(sendreq(ch, req, fd)) { | |
166 | flog(LOG_ERR, "accesslog: could not pass request to child: %s", strerror(errno)); | |
167 | exit(1); | |
168 | } | |
169 | logreq(req); | |
170 | } | |
171 | ||
172 | static void usage(FILE *out) | |
173 | { | |
9701afc5 | 174 | fprintf(out, "usage: accesslog [-hFa] [-f FORMAT] OUTFILE CHILD [ARGS...]\n"); |
048ac115 FT |
175 | } |
176 | ||
177 | int main(int argc, char **argv) | |
178 | { | |
179 | int c, ret; | |
180 | struct hthead *req; | |
181 | int fd; | |
182 | struct pollfd pfd[2]; | |
048ac115 FT |
183 | |
184 | optarg = NULL; | |
9701afc5 | 185 | while((c = getopt(argc, argv, "+hFaf:")) >= 0) { |
048ac115 FT |
186 | switch(c) { |
187 | case 'h': | |
188 | usage(stdout); | |
189 | exit(0); | |
048ac115 FT |
190 | case 'F': |
191 | flush = 0; | |
192 | break; | |
193 | case 'f': | |
194 | format = optarg; | |
195 | break; | |
196 | case 'a': | |
197 | format = "%A - - [%{%d/%b/%Y:%H:%M:%S %z}t] \"%m %u %v\" - - \"%R\" \"%G\""; | |
198 | break; | |
199 | default: | |
200 | usage(stderr); | |
201 | exit(1); | |
202 | } | |
203 | } | |
9701afc5 | 204 | if(argc - optind < 2) { |
048ac115 FT |
205 | usage(stderr); |
206 | exit(1); | |
207 | } | |
208 | if(format == NULL) | |
209 | format = DEFFORMAT; | |
9701afc5 FT |
210 | if(!strcmp(argv[optind], "-")) { |
211 | out = stdout; | |
212 | } else { | |
213 | if((out = fopen(argv[optind], "a")) == NULL) { | |
214 | flog(LOG_ERR, "accesslog: could not open %s for logging: %s", argv[optind], strerror(errno)); | |
048ac115 FT |
215 | exit(1); |
216 | } | |
048ac115 | 217 | } |
9701afc5 | 218 | if((ch = stdmkchild(argv + optind + 1, NULL, NULL)) < 0) { |
048ac115 FT |
219 | flog(LOG_ERR, "accesslog: could fork child: %s", strerror(errno)); |
220 | exit(1); | |
221 | } | |
222 | while(1) { | |
223 | memset(pfd, 0, sizeof(pfd)); | |
224 | pfd[0].fd = 0; | |
225 | pfd[0].events = POLLIN; | |
226 | pfd[1].fd = ch; | |
227 | pfd[1].events = POLLHUP; | |
228 | if((ret = poll(pfd, 2, -1)) < 0) { | |
229 | if(errno != EINTR) { | |
230 | flog(LOG_ERR, "accesslog: error in poll: %s", strerror(errno)); | |
231 | exit(1); | |
232 | } | |
233 | } | |
234 | if(pfd[0].revents) { | |
235 | if((fd = recvreq(0, &req)) < 0) { | |
236 | if(errno == 0) | |
237 | break; | |
238 | flog(LOG_ERR, "accesslog: error in recvreq: %s", strerror(errno)); | |
239 | exit(1); | |
240 | } | |
241 | serve(req, fd); | |
242 | freehthead(req); | |
243 | close(fd); | |
244 | } | |
245 | if(pfd[1].revents & POLLHUP) | |
246 | break; | |
247 | } | |
248 | return(0); | |
249 | } |