Mercurial > hg > nginx-vendor-1-0
comparison src/http/modules/ngx_http_log_module.c @ 118:644a7935144b NGINX_0_3_6
nginx 0.3.6
*) Change: now the IMAP/POP3 proxy do not send the empty login to
authorization server.
*) Feature: the "log_format" supports the variables in the $name form.
*) Bugfix: if at least in one server was no the "listen" directive,
then nginx did not listen on the 80 port; bug appeared in 0.3.3.
*) Bugfix: if the URI part is omitted in "proxy_pass" directive, the
the 80 port was always used.
author | Igor Sysoev <http://sysoev.ru> |
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date | Mon, 24 Oct 2005 00:00:00 +0400 |
parents | |
children | e85dca77c46a |
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1 | |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 #include <nginx.h> | |
11 | |
12 | |
13 static u_char *ngx_http_log_addr(ngx_http_request_t *r, u_char *buf, | |
14 ngx_http_log_op_t *op); | |
15 static u_char *ngx_http_log_connection(ngx_http_request_t *r, u_char *buf, | |
16 ngx_http_log_op_t *op); | |
17 static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, | |
18 ngx_http_log_op_t *op); | |
19 static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf, | |
20 ngx_http_log_op_t *op); | |
21 static u_char *ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, | |
22 ngx_http_log_op_t *op); | |
23 static u_char *ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, | |
24 ngx_http_log_op_t *op); | |
25 static u_char *ngx_http_log_status(ngx_http_request_t *r, u_char *buf, | |
26 ngx_http_log_op_t *op); | |
27 static u_char *ngx_http_log_length(ngx_http_request_t *r, u_char *buf, | |
28 ngx_http_log_op_t *op); | |
29 static u_char *ngx_http_log_apache_length(ngx_http_request_t *r, u_char *buf, | |
30 ngx_http_log_op_t *op); | |
31 static u_char *ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, | |
32 ngx_http_log_op_t *op); | |
33 | |
34 static size_t ngx_http_log_request_getlen(ngx_http_request_t *r, | |
35 uintptr_t data); | |
36 static u_char *ngx_http_log_request(ngx_http_request_t *r, u_char *buf, | |
37 ngx_http_log_op_t *op); | |
38 | |
39 static ngx_int_t ngx_http_log_header_in_compile(ngx_conf_t *cf, | |
40 ngx_http_log_op_t *op, ngx_str_t *value); | |
41 static size_t ngx_http_log_header_in_getlen(ngx_http_request_t *r, | |
42 uintptr_t data); | |
43 static u_char *ngx_http_log_header_in(ngx_http_request_t *r, u_char *buf, | |
44 ngx_http_log_op_t *op); | |
45 static size_t ngx_http_log_unknown_header_in_getlen(ngx_http_request_t *r, | |
46 uintptr_t data); | |
47 static u_char *ngx_http_log_unknown_header_in(ngx_http_request_t *r, | |
48 u_char *buf, ngx_http_log_op_t *op); | |
49 | |
50 static ngx_int_t ngx_http_log_header_out_compile(ngx_conf_t *cf, | |
51 ngx_http_log_op_t *op, ngx_str_t *value); | |
52 static size_t ngx_http_log_header_out_getlen(ngx_http_request_t *r, | |
53 uintptr_t data); | |
54 static u_char *ngx_http_log_header_out(ngx_http_request_t *r, u_char *buf, | |
55 ngx_http_log_op_t *op); | |
56 static size_t ngx_http_log_unknown_header_out_getlen(ngx_http_request_t *r, | |
57 uintptr_t data); | |
58 static u_char *ngx_http_log_unknown_header_out(ngx_http_request_t *r, | |
59 u_char *buf, ngx_http_log_op_t *op); | |
60 | |
61 static u_char *ngx_http_log_connection_header_out(ngx_http_request_t *r, | |
62 u_char *buf, ngx_http_log_op_t *op); | |
63 static u_char *ngx_http_log_transfer_encoding_header_out(ngx_http_request_t *r, | |
64 u_char *buf, ngx_http_log_op_t *op); | |
65 | |
66 static ngx_table_elt_t *ngx_http_log_unknown_header(ngx_list_t *headers, | |
67 ngx_str_t *value); | |
68 | |
69 static ngx_int_t ngx_http_log_variable_compile(ngx_conf_t *cf, | |
70 ngx_http_log_op_t *op, ngx_str_t *value); | |
71 static size_t ngx_http_log_variable_getlen(ngx_http_request_t *r, | |
72 uintptr_t data); | |
73 static u_char *ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, | |
74 ngx_http_log_op_t *op); | |
75 | |
76 | |
77 static ngx_int_t ngx_http_log_set_formats(ngx_conf_t *cf); | |
78 static void *ngx_http_log_create_main_conf(ngx_conf_t *cf); | |
79 static void *ngx_http_log_create_loc_conf(ngx_conf_t *cf); | |
80 static char *ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, | |
81 void *child); | |
82 static char *ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, | |
83 void *conf); | |
84 static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, | |
85 void *conf); | |
86 static ngx_int_t ngx_http_log_init(ngx_cycle_t *cycle); | |
87 | |
88 | |
89 static ngx_command_t ngx_http_log_commands[] = { | |
90 | |
91 { ngx_string("log_format"), | |
92 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE, | |
93 ngx_http_log_set_format, | |
94 NGX_HTTP_MAIN_CONF_OFFSET, | |
95 0, | |
96 NULL }, | |
97 | |
98 { ngx_string("access_log"), | |
99 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
100 ngx_http_log_set_log, | |
101 NGX_HTTP_LOC_CONF_OFFSET, | |
102 0, | |
103 NULL }, | |
104 | |
105 ngx_null_command | |
106 }; | |
107 | |
108 | |
109 ngx_http_module_t ngx_http_log_module_ctx = { | |
110 ngx_http_log_set_formats, /* preconfiguration */ | |
111 NULL, /* postconfiguration */ | |
112 | |
113 ngx_http_log_create_main_conf, /* create main configuration */ | |
114 NULL, /* init main configuration */ | |
115 | |
116 NULL, /* create server configuration */ | |
117 NULL, /* merge server configuration */ | |
118 | |
119 ngx_http_log_create_loc_conf, /* create location configration */ | |
120 ngx_http_log_merge_loc_conf /* merge location configration */ | |
121 }; | |
122 | |
123 | |
124 ngx_module_t ngx_http_log_module = { | |
125 NGX_MODULE_V1, | |
126 &ngx_http_log_module_ctx, /* module context */ | |
127 ngx_http_log_commands, /* module directives */ | |
128 NGX_HTTP_MODULE, /* module type */ | |
129 NULL, /* init master */ | |
130 ngx_http_log_init, /* init module */ | |
131 NULL, /* init process */ | |
132 NULL, /* init thread */ | |
133 NULL, /* exit thread */ | |
134 NULL, /* exit process */ | |
135 NULL, /* exit master */ | |
136 NGX_MODULE_V1_PADDING | |
137 }; | |
138 | |
139 | |
140 static ngx_str_t http_access_log = ngx_string(NGX_HTTP_LOG_PATH); | |
141 | |
142 | |
143 static ngx_str_t ngx_http_combined_fmt = | |
144 #if 0 | |
145 ngx_string("$remote_addr - $remote_user [%time] " | |
146 "\"$request\" %status %apache_length " | |
147 "\"$http_referer\" \"$http_user_agent\""); | |
148 #endif | |
149 ngx_string("%addr - - [%time] " | |
150 "\"%request\" %status %apache_length " | |
151 "\"%{referer}i\" \"%{user-agent}i\""); | |
152 | |
153 | |
154 ngx_http_log_op_name_t ngx_http_log_fmt_ops[] = { | |
155 { ngx_string("addr"), INET_ADDRSTRLEN - 1, NULL, NULL, ngx_http_log_addr }, | |
156 { ngx_string("conn"), NGX_ATOMIC_T_LEN, NULL, NULL, | |
157 ngx_http_log_connection }, | |
158 { ngx_string("pipe"), 1, NULL, NULL, ngx_http_log_pipe }, | |
159 { ngx_string("time"), sizeof("28/Sep/1970:12:00:00 +0600") - 1, | |
160 NULL, NULL, ngx_http_log_time }, | |
161 { ngx_string("msec"), NGX_TIME_T_LEN + 4, NULL, NULL, ngx_http_log_msec }, | |
162 { ngx_string("request_time"), NGX_TIME_T_LEN, NULL, NULL, | |
163 ngx_http_log_request_time }, | |
164 { ngx_string("status"), 3, NULL, NULL, ngx_http_log_status }, | |
165 { ngx_string("length"), NGX_OFF_T_LEN, NULL, NULL, ngx_http_log_length }, | |
166 { ngx_string("apache_length"), NGX_OFF_T_LEN, | |
167 NULL, NULL, ngx_http_log_apache_length }, | |
168 { ngx_string("request_length"), NGX_SIZE_T_LEN, | |
169 NULL, NULL, ngx_http_log_request_length }, | |
170 | |
171 { ngx_string("request"), 0, NULL, | |
172 ngx_http_log_request_getlen, | |
173 ngx_http_log_request }, | |
174 | |
175 { ngx_string("i"), 0, ngx_http_log_header_in_compile, NULL, | |
176 ngx_http_log_header_in }, | |
177 { ngx_string("o"), 0, ngx_http_log_header_out_compile, NULL, | |
178 ngx_http_log_header_out }, | |
179 { ngx_string("v"), 0, ngx_http_log_variable_compile, NULL, | |
180 ngx_http_log_variable }, | |
181 | |
182 { ngx_null_string, 0, NULL, NULL, NULL } | |
183 }; | |
184 | |
185 | |
186 ngx_int_t | |
187 ngx_http_log_handler(ngx_http_request_t *r) | |
188 { | |
189 ngx_uint_t i, l; | |
190 u_char *line, *p; | |
191 size_t len; | |
192 ngx_http_log_t *log; | |
193 ngx_http_log_op_t *op; | |
194 ngx_http_log_loc_conf_t *lcf; | |
195 #if (NGX_WIN32) | |
196 u_long written; | |
197 #endif | |
198 | |
199 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
200 "http log handler"); | |
201 | |
202 lcf = ngx_http_get_module_loc_conf(r, ngx_http_log_module); | |
203 | |
204 if (lcf->off) { | |
205 return NGX_OK; | |
206 } | |
207 | |
208 log = lcf->logs->elts; | |
209 for (l = 0; l < lcf->logs->nelts; l++) { | |
210 | |
211 len = 0; | |
212 op = log[l].ops->elts; | |
213 for (i = 0; i < log[l].ops->nelts; i++) { | |
214 if (op[i].len == 0) { | |
215 len += op[i].getlen(r, op[i].data); | |
216 | |
217 } else { | |
218 len += op[i].len; | |
219 } | |
220 } | |
221 | |
222 #if (NGX_WIN32) | |
223 len += 2; | |
224 #else | |
225 len++; | |
226 #endif | |
227 | |
228 line = ngx_palloc(r->pool, len); | |
229 if (line == NULL) { | |
230 return NGX_ERROR; | |
231 } | |
232 | |
233 p = line; | |
234 | |
235 for (i = 0; i < log[l].ops->nelts; i++) { | |
236 p = op[i].run(r, p, &op[i]); | |
237 } | |
238 | |
239 #if (NGX_WIN32) | |
240 *p++ = CR; *p++ = LF; | |
241 WriteFile(log[l].file->fd, line, p - line, &written, NULL); | |
242 #else | |
243 *p++ = LF; | |
244 write(log[l].file->fd, line, p - line); | |
245 #endif | |
246 } | |
247 | |
248 return NGX_OK; | |
249 } | |
250 | |
251 | |
252 static u_char * | |
253 ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf, | |
254 ngx_http_log_op_t *op) | |
255 { | |
256 size_t len; | |
257 uintptr_t data; | |
258 | |
259 len = op->len; | |
260 data = op->data; | |
261 | |
262 while (len--) { | |
263 *buf++ = (u_char) (data & 0xff); | |
264 data >>= 8; | |
265 } | |
266 | |
267 return buf; | |
268 } | |
269 | |
270 | |
271 static u_char * | |
272 ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf, | |
273 ngx_http_log_op_t *op) | |
274 { | |
275 return ngx_cpymem(buf, (u_char *) op->data, op->len); | |
276 } | |
277 | |
278 | |
279 static u_char * | |
280 ngx_http_log_addr(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
281 { | |
282 return ngx_cpymem(buf, r->connection->addr_text.data, | |
283 r->connection->addr_text.len); | |
284 } | |
285 | |
286 | |
287 static u_char * | |
288 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf, | |
289 ngx_http_log_op_t *op) | |
290 { | |
291 return ngx_sprintf(buf, "%ui", r->connection->number); | |
292 } | |
293 | |
294 | |
295 static u_char * | |
296 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
297 { | |
298 if (r->pipeline) { | |
299 *buf = 'p'; | |
300 } else { | |
301 *buf = '.'; | |
302 } | |
303 | |
304 return buf + 1; | |
305 } | |
306 | |
307 | |
308 static u_char * | |
309 ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
310 { | |
311 return ngx_cpymem(buf, ngx_cached_http_log_time.data, | |
312 ngx_cached_http_log_time.len); | |
313 } | |
314 | |
315 | |
316 static u_char * | |
317 ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
318 { | |
319 ngx_time_t *tp; | |
320 | |
321 tp = ngx_timeofday(); | |
322 | |
323 return ngx_sprintf(buf, "%T.%03M", tp->sec, tp->msec); | |
324 } | |
325 | |
326 | |
327 static u_char * | |
328 ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, | |
329 ngx_http_log_op_t *op) | |
330 { | |
331 time_t elapsed; | |
332 | |
333 elapsed = ngx_time() - r->start_time; | |
334 | |
335 return ngx_sprintf(buf, "%T", elapsed); | |
336 } | |
337 | |
338 | |
339 static size_t | |
340 ngx_http_log_request_getlen(ngx_http_request_t *r, uintptr_t data) | |
341 { | |
342 return r->request_line.len; | |
343 } | |
344 | |
345 | |
346 static u_char * | |
347 ngx_http_log_request(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
348 { | |
349 return ngx_cpymem(buf, r->request_line.data, r->request_line.len); | |
350 } | |
351 | |
352 | |
353 static u_char * | |
354 ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
355 { | |
356 return ngx_sprintf(buf, "%ui", | |
357 r->err_status ? r->err_status : r->headers_out.status); | |
358 } | |
359 | |
360 | |
361 static u_char * | |
362 ngx_http_log_length(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
363 { | |
364 return ngx_sprintf(buf, "%O", r->connection->sent); | |
365 } | |
366 | |
367 | |
368 static u_char * | |
369 ngx_http_log_apache_length(ngx_http_request_t *r, u_char *buf, | |
370 ngx_http_log_op_t *op) | |
371 { | |
372 off_t length; | |
373 | |
374 length = r->connection->sent - r->header_size; | |
375 | |
376 if (length > 0) { | |
377 return ngx_sprintf(buf, "%O", length); | |
378 } | |
379 | |
380 *buf = '0'; | |
381 | |
382 return buf + 1; | |
383 } | |
384 | |
385 | |
386 static u_char * | |
387 ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, | |
388 ngx_http_log_op_t *op) | |
389 { | |
390 return ngx_sprintf(buf, "%z", r->request_length); | |
391 } | |
392 | |
393 | |
394 static ngx_int_t | |
395 ngx_http_log_header_in_compile(ngx_conf_t *cf, ngx_http_log_op_t *op, | |
396 ngx_str_t *value) | |
397 { | |
398 ngx_uint_t i; | |
399 | |
400 op->len = 0; | |
401 | |
402 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) { | |
403 | |
404 if (ngx_http_headers_in[i].name.len != value->len) { | |
405 continue; | |
406 } | |
407 | |
408 /* STUB: "Cookie" speacial handling */ | |
409 if (ngx_http_headers_in[i].offset == 0) { | |
410 continue; | |
411 } | |
412 | |
413 if (ngx_strncasecmp(ngx_http_headers_in[i].name.data, value->data, | |
414 value->len) == 0) | |
415 { | |
416 op->getlen = ngx_http_log_header_in_getlen; | |
417 op->run = ngx_http_log_header_in; | |
418 op->data = ngx_http_headers_in[i].offset; | |
419 | |
420 return NGX_OK; | |
421 } | |
422 } | |
423 | |
424 op->getlen = ngx_http_log_unknown_header_in_getlen; | |
425 op->run = ngx_http_log_unknown_header_in; | |
426 op->data = (uintptr_t) value; | |
427 | |
428 return NGX_OK; | |
429 } | |
430 | |
431 | |
432 static size_t | |
433 ngx_http_log_header_in_getlen(ngx_http_request_t *r, uintptr_t data) | |
434 { | |
435 ngx_table_elt_t *h; | |
436 | |
437 h = *(ngx_table_elt_t **) ((char *) &r->headers_in + data); | |
438 | |
439 if (h) { | |
440 return h->value.len; | |
441 } | |
442 | |
443 return 1; | |
444 } | |
445 | |
446 | |
447 static u_char * | |
448 ngx_http_log_header_in(ngx_http_request_t *r, u_char *buf, | |
449 ngx_http_log_op_t *op) | |
450 { | |
451 ngx_table_elt_t *h; | |
452 | |
453 h = *(ngx_table_elt_t **) ((char *) &r->headers_in + op->data); | |
454 | |
455 if (h) { | |
456 return ngx_cpymem(buf, h->value.data, h->value.len); | |
457 } | |
458 | |
459 *buf = '-'; | |
460 | |
461 return buf + 1; | |
462 } | |
463 | |
464 | |
465 static size_t | |
466 ngx_http_log_unknown_header_in_getlen(ngx_http_request_t *r, uintptr_t data) | |
467 { | |
468 ngx_table_elt_t *h; | |
469 | |
470 h = ngx_http_log_unknown_header(&r->headers_in.headers, (ngx_str_t *) data); | |
471 | |
472 if (h) { | |
473 return h->value.len; | |
474 } | |
475 | |
476 return 1; | |
477 } | |
478 | |
479 | |
480 static u_char * | |
481 ngx_http_log_unknown_header_in(ngx_http_request_t *r, u_char *buf, | |
482 ngx_http_log_op_t *op) | |
483 { | |
484 ngx_table_elt_t *h; | |
485 | |
486 h = ngx_http_log_unknown_header(&r->headers_in.headers, | |
487 (ngx_str_t *) op->data); | |
488 | |
489 if (h) { | |
490 return ngx_cpymem(buf, h->value.data, h->value.len); | |
491 } | |
492 | |
493 *buf = '-'; | |
494 | |
495 return buf + 1; | |
496 } | |
497 | |
498 | |
499 static ngx_int_t | |
500 ngx_http_log_header_out_compile(ngx_conf_t *cf, ngx_http_log_op_t *op, | |
501 ngx_str_t *value) | |
502 { | |
503 ngx_uint_t i; | |
504 | |
505 op->len = 0; | |
506 | |
507 for (i = 0; ngx_http_headers_out[i].name.len != 0; i++) { | |
508 | |
509 if (ngx_http_headers_out[i].name.len != value->len) { | |
510 continue; | |
511 } | |
512 | |
513 if (ngx_strncasecmp(ngx_http_headers_out[i].name.data, value->data, | |
514 value->len) == 0) | |
515 { | |
516 op->getlen = ngx_http_log_header_out_getlen; | |
517 op->run = ngx_http_log_header_out; | |
518 op->data = ngx_http_headers_out[i].offset; | |
519 | |
520 return NGX_OK; | |
521 } | |
522 } | |
523 | |
524 if (value->len == sizeof("Connection") - 1 | |
525 && ngx_strncasecmp(value->data, "Connection", value->len) == 0) | |
526 { | |
527 op->len = sizeof("keep-alive") - 1; | |
528 op->getlen = NULL; | |
529 op->run = ngx_http_log_connection_header_out; | |
530 op->data = 0; | |
531 return NGX_OK; | |
532 } | |
533 | |
534 if (value->len == sizeof("Transfer-Encoding") - 1 | |
535 && ngx_strncasecmp(value->data, "Transfer-Encoding", value->len) == 0) | |
536 { | |
537 op->len = sizeof("chunked") - 1; | |
538 op->getlen = NULL; | |
539 op->run = ngx_http_log_transfer_encoding_header_out; | |
540 op->data = 0; | |
541 return NGX_OK; | |
542 } | |
543 | |
544 op->getlen = ngx_http_log_unknown_header_out_getlen; | |
545 op->run = ngx_http_log_unknown_header_out; | |
546 op->data = (uintptr_t) value; | |
547 | |
548 return NGX_OK; | |
549 } | |
550 | |
551 | |
552 static size_t | |
553 ngx_http_log_header_out_getlen(ngx_http_request_t *r, uintptr_t data) | |
554 { | |
555 ngx_table_elt_t *h; | |
556 | |
557 h = *(ngx_table_elt_t **) ((char *) &r->headers_out + data); | |
558 | |
559 if (h) { | |
560 return h->value.len; | |
561 } | |
562 | |
563 /* | |
564 * No header pointer was found. | |
565 * However, some headers: "Date", "Server", "Content-Length", | |
566 * and "Last-Modified" have a special handling in the header filter, | |
567 * but we do not set up their pointers in the filter, | |
568 * because they are too seldom needed to be logged. | |
569 */ | |
570 | |
571 if (data == offsetof(ngx_http_headers_out_t, date)) { | |
572 return ngx_cached_http_time.len; | |
573 } | |
574 | |
575 if (data == offsetof(ngx_http_headers_out_t, server)) { | |
576 return (sizeof(NGINX_VER) - 1); | |
577 } | |
578 | |
579 if (data == offsetof(ngx_http_headers_out_t, content_length)) { | |
580 if (r->headers_out.content_length_n == -1) { | |
581 return 1; | |
582 } | |
583 | |
584 return NGX_OFF_T_LEN; | |
585 } | |
586 | |
587 if (data == offsetof(ngx_http_headers_out_t, last_modified)) { | |
588 if (r->headers_out.last_modified_time == -1) { | |
589 return 1; | |
590 } | |
591 | |
592 return sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1; | |
593 } | |
594 | |
595 return 1; | |
596 } | |
597 | |
598 | |
599 static u_char * | |
600 ngx_http_log_header_out(ngx_http_request_t *r, u_char *buf, | |
601 ngx_http_log_op_t *op) | |
602 { | |
603 ngx_table_elt_t *h; | |
604 | |
605 h = *(ngx_table_elt_t **) ((char *) &r->headers_out + op->data); | |
606 | |
607 if (h) { | |
608 return ngx_cpymem(buf, h->value.data, h->value.len); | |
609 } | |
610 | |
611 /* | |
612 * No header pointer was found. | |
613 * However, some headers: "Date", "Server", "Content-Length", | |
614 * and "Last-Modified" have a special handling in the header filter, | |
615 * but we do not set up their pointers in the filter, | |
616 * because they are too seldom needed to be logged. | |
617 */ | |
618 | |
619 if (op->data == offsetof(ngx_http_headers_out_t, date)) { | |
620 return ngx_cpymem(buf, ngx_cached_http_time.data, | |
621 ngx_cached_http_time.len); | |
622 } | |
623 | |
624 if (op->data == offsetof(ngx_http_headers_out_t, server)) { | |
625 return ngx_cpymem(buf, NGINX_VER, sizeof(NGINX_VER) - 1); | |
626 } | |
627 | |
628 if (op->data == offsetof(ngx_http_headers_out_t, content_length)) { | |
629 if (r->headers_out.content_length_n == -1) { | |
630 *buf = '-'; | |
631 | |
632 return buf + 1; | |
633 } | |
634 | |
635 return ngx_sprintf(buf, "%O", r->headers_out.content_length_n); | |
636 } | |
637 | |
638 if (op->data == offsetof(ngx_http_headers_out_t, last_modified)) { | |
639 if (r->headers_out.last_modified_time == -1) { | |
640 *buf = '-'; | |
641 | |
642 return buf + 1; | |
643 } | |
644 | |
645 return ngx_http_time(buf, r->headers_out.last_modified_time); | |
646 } | |
647 | |
648 *buf = '-'; | |
649 | |
650 return buf + 1; | |
651 } | |
652 | |
653 | |
654 static size_t | |
655 ngx_http_log_unknown_header_out_getlen(ngx_http_request_t *r, uintptr_t data) | |
656 { | |
657 ngx_table_elt_t *h; | |
658 | |
659 h = ngx_http_log_unknown_header(&r->headers_out.headers, | |
660 (ngx_str_t *) data); | |
661 | |
662 if (h) { | |
663 return h->value.len; | |
664 } | |
665 | |
666 return 1; | |
667 } | |
668 | |
669 | |
670 static u_char * | |
671 ngx_http_log_unknown_header_out(ngx_http_request_t *r, u_char *buf, | |
672 ngx_http_log_op_t *op) | |
673 { | |
674 ngx_table_elt_t *h; | |
675 | |
676 h = ngx_http_log_unknown_header(&r->headers_out.headers, | |
677 (ngx_str_t *) op->data); | |
678 | |
679 if (h) { | |
680 return ngx_cpymem(buf, h->value.data, h->value.len); | |
681 } | |
682 | |
683 *buf = '-'; | |
684 | |
685 return buf + 1; | |
686 } | |
687 | |
688 | |
689 static ngx_table_elt_t * | |
690 ngx_http_log_unknown_header(ngx_list_t *headers, ngx_str_t *value) | |
691 { | |
692 ngx_uint_t i; | |
693 ngx_list_part_t *part; | |
694 ngx_table_elt_t *h; | |
695 | |
696 part = &headers->part; | |
697 h = part->elts; | |
698 | |
699 for (i = 0; /* void */; i++) { | |
700 | |
701 if (i >= part->nelts) { | |
702 if (part->next == NULL) { | |
703 break; | |
704 } | |
705 | |
706 part = part->next; | |
707 h = part->elts; | |
708 i = 0; | |
709 } | |
710 | |
711 if (h[i].key.len != value->len) { | |
712 continue; | |
713 } | |
714 | |
715 if (ngx_strncasecmp(h[i].key.data, value->data, value->len) == 0) { | |
716 return &h[i]; | |
717 } | |
718 } | |
719 | |
720 return NULL; | |
721 } | |
722 | |
723 | |
724 static u_char * | |
725 ngx_http_log_connection_header_out(ngx_http_request_t *r, u_char *buf, | |
726 ngx_http_log_op_t *op) | |
727 { | |
728 if (r->keepalive) { | |
729 return ngx_cpymem(buf, "keep-alive", sizeof("keep-alive") - 1); | |
730 | |
731 } else { | |
732 return ngx_cpymem(buf, "close", sizeof("close") - 1); | |
733 } | |
734 } | |
735 | |
736 | |
737 static u_char * | |
738 ngx_http_log_transfer_encoding_header_out(ngx_http_request_t *r, u_char *buf, | |
739 ngx_http_log_op_t *op) | |
740 { | |
741 if (r->chunked) { | |
742 return ngx_cpymem(buf, "chunked", sizeof("chunked") - 1); | |
743 } | |
744 | |
745 *buf = '-'; | |
746 | |
747 return buf + 1; | |
748 } | |
749 | |
750 | |
751 static ngx_int_t | |
752 ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op, | |
753 ngx_str_t *value) | |
754 { | |
755 ngx_int_t index; | |
756 | |
757 index = ngx_http_get_variable_index(cf, value); | |
758 if (index == NGX_ERROR) { | |
759 return NGX_ERROR; | |
760 } | |
761 | |
762 op->len = 0; | |
763 op->getlen = ngx_http_log_variable_getlen; | |
764 op->run = ngx_http_log_variable; | |
765 op->data = index; | |
766 | |
767 return NGX_OK; | |
768 } | |
769 | |
770 | |
771 static size_t | |
772 ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data) | |
773 { | |
774 ngx_http_variable_value_t *value; | |
775 | |
776 value = ngx_http_get_indexed_variable(r, data); | |
777 | |
778 if (value == NULL | |
779 || value == NGX_HTTP_VAR_NOT_FOUND | |
780 || value->text.len == 0) | |
781 { | |
782 return 1; | |
783 } | |
784 | |
785 return value->text.len; | |
786 } | |
787 | |
788 | |
789 static u_char * | |
790 ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) | |
791 { | |
792 ngx_http_variable_value_t *value; | |
793 | |
794 value = ngx_http_get_indexed_variable(r, op->data); | |
795 | |
796 if (value == NULL | |
797 || value == NGX_HTTP_VAR_NOT_FOUND | |
798 || value->text.len == 0) | |
799 { | |
800 *buf = '-'; | |
801 return buf + 1; | |
802 } | |
803 | |
804 return ngx_cpymem(buf, value->text.data, value->text.len); | |
805 } | |
806 | |
807 | |
808 static ngx_int_t | |
809 ngx_http_log_set_formats(ngx_conf_t *cf) | |
810 { | |
811 ngx_http_log_op_name_t *op; | |
812 | |
813 for (op = ngx_http_log_fmt_ops; op->name.len; op++) { /* void */ } | |
814 op->run = NULL; | |
815 | |
816 return NGX_OK; | |
817 } | |
818 | |
819 | |
820 static void * | |
821 ngx_http_log_create_main_conf(ngx_conf_t *cf) | |
822 { | |
823 ngx_http_log_main_conf_t *conf; | |
824 | |
825 char *rc; | |
826 ngx_str_t *value; | |
827 | |
828 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t)); | |
829 if (conf == NULL) { | |
830 return NGX_CONF_ERROR; | |
831 } | |
832 | |
833 if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t)) | |
834 == NGX_ERROR) | |
835 { | |
836 return NGX_CONF_ERROR; | |
837 } | |
838 | |
839 cf->args->nelts = 0; | |
840 | |
841 value = ngx_array_push(cf->args); | |
842 if (value == NULL) { | |
843 return NGX_CONF_ERROR; | |
844 } | |
845 | |
846 value->len = 0; | |
847 value->data = NULL; | |
848 | |
849 value = ngx_array_push(cf->args); | |
850 if (value == NULL) { | |
851 return NGX_CONF_ERROR; | |
852 } | |
853 | |
854 value->len = sizeof("combined") - 1; | |
855 value->data = (u_char *) "combined"; | |
856 | |
857 value = ngx_array_push(cf->args); | |
858 if (value == NULL) { | |
859 return NGX_CONF_ERROR; | |
860 } | |
861 | |
862 *value = ngx_http_combined_fmt; | |
863 | |
864 rc = ngx_http_log_set_format(cf, NULL, conf); | |
865 if (rc != NGX_CONF_OK) { | |
866 return NGX_CONF_ERROR; | |
867 } | |
868 | |
869 return conf; | |
870 } | |
871 | |
872 | |
873 static void * | |
874 ngx_http_log_create_loc_conf(ngx_conf_t *cf) | |
875 { | |
876 ngx_http_log_loc_conf_t *conf; | |
877 | |
878 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t)); | |
879 if (conf == NULL) { | |
880 return NGX_CONF_ERROR; | |
881 } | |
882 | |
883 return conf; | |
884 } | |
885 | |
886 | |
887 static char * | |
888 ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
889 { | |
890 ngx_http_log_loc_conf_t *prev = parent; | |
891 ngx_http_log_loc_conf_t *conf = child; | |
892 | |
893 ngx_http_log_t *log; | |
894 ngx_http_log_fmt_t *fmt; | |
895 ngx_http_log_main_conf_t *lmcf; | |
896 | |
897 if (conf->logs == NULL) { | |
898 | |
899 if (conf->off) { | |
900 return NGX_CONF_OK; | |
901 } | |
902 | |
903 if (prev->logs) { | |
904 conf->logs = prev->logs; | |
905 | |
906 } else { | |
907 | |
908 if (prev->off) { | |
909 conf->off = prev->off; | |
910 return NGX_CONF_OK; | |
911 } | |
912 | |
913 conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); | |
914 if (conf->logs == NULL) { | |
915 return NGX_CONF_ERROR; | |
916 } | |
917 | |
918 log = ngx_array_push(conf->logs); | |
919 if (log == NULL) { | |
920 return NGX_CONF_ERROR; | |
921 } | |
922 | |
923 log->file = ngx_conf_open_file(cf->cycle, &http_access_log); | |
924 if (log->file == NULL) { | |
925 return NGX_CONF_ERROR; | |
926 } | |
927 | |
928 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); | |
929 fmt = lmcf->formats.elts; | |
930 | |
931 /* the default "combined" format */ | |
932 log->ops = fmt[0].ops; | |
933 } | |
934 } | |
935 | |
936 return NGX_CONF_OK; | |
937 } | |
938 | |
939 | |
940 static char * | |
941 ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
942 { | |
943 ngx_http_log_loc_conf_t *llcf = conf; | |
944 | |
945 ngx_uint_t i; | |
946 ngx_str_t *value, name; | |
947 ngx_http_log_t *log; | |
948 ngx_http_log_fmt_t *fmt; | |
949 ngx_http_log_main_conf_t *lmcf; | |
950 | |
951 value = cf->args->elts; | |
952 | |
953 if (ngx_strcmp(value[1].data, "off") == 0) { | |
954 llcf->off = 1; | |
955 return NGX_CONF_OK; | |
956 } | |
957 | |
958 if (llcf->logs == NULL) { | |
959 llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); | |
960 if (llcf->logs == NULL) { | |
961 return NGX_CONF_ERROR; | |
962 } | |
963 } | |
964 | |
965 lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module); | |
966 | |
967 log = ngx_array_push(llcf->logs); | |
968 if (log == NULL) { | |
969 return NGX_CONF_ERROR; | |
970 } | |
971 | |
972 log->file = ngx_conf_open_file(cf->cycle, &value[1]); | |
973 if (log->file == NULL) { | |
974 return NGX_CONF_ERROR; | |
975 } | |
976 | |
977 if (cf->args->nelts == 3) { | |
978 name = value[2]; | |
979 } else { | |
980 name.len = sizeof("combined") - 1; | |
981 name.data = (u_char *) "combined"; | |
982 } | |
983 | |
984 fmt = lmcf->formats.elts; | |
985 for (i = 0; i < lmcf->formats.nelts; i++) { | |
986 if (fmt[i].name.len == name.len | |
987 && ngx_strcasecmp(fmt[i].name.data, name.data) == 0) | |
988 { | |
989 log->ops = fmt[i].ops; | |
990 return NGX_CONF_OK; | |
991 } | |
992 } | |
993 | |
994 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
995 "unknown log format \"%V\"", &name); | |
996 | |
997 return NGX_CONF_ERROR; | |
998 } | |
999 | |
1000 | |
1001 static char * | |
1002 ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1003 { | |
1004 ngx_http_log_main_conf_t *lmcf = conf; | |
1005 | |
1006 u_char *data, *p, *fname, ch; | |
1007 size_t i, len, fname_len; | |
1008 ngx_str_t *value, var, arg, *a; | |
1009 ngx_uint_t s, f, bracket; | |
1010 ngx_http_log_op_t *op; | |
1011 ngx_http_log_fmt_t *fmt; | |
1012 ngx_http_log_op_name_t *name; | |
1013 | |
1014 value = cf->args->elts; | |
1015 | |
1016 fmt = lmcf->formats.elts; | |
1017 for (f = 0; f < lmcf->formats.nelts; f++) { | |
1018 if (fmt[f].name.len == value[1].len | |
1019 && ngx_strcmp(fmt->name.data, value[1].data) == 0) | |
1020 { | |
1021 return "duplicate \"log_format\" name"; | |
1022 } | |
1023 } | |
1024 | |
1025 fmt = ngx_array_push(&lmcf->formats); | |
1026 if (fmt == NULL) { | |
1027 return NGX_CONF_ERROR; | |
1028 } | |
1029 | |
1030 fmt->name = value[1]; | |
1031 | |
1032 fmt->ops = ngx_array_create(cf->pool, 20, sizeof(ngx_http_log_op_t)); | |
1033 if (fmt->ops == NULL) { | |
1034 return NGX_CONF_ERROR; | |
1035 } | |
1036 | |
1037 arg.data = NULL; | |
1038 | |
1039 for (s = 2; s < cf->args->nelts; s++) { | |
1040 | |
1041 i = 0; | |
1042 | |
1043 while (i < value[s].len) { | |
1044 | |
1045 op = ngx_array_push(fmt->ops); | |
1046 if (op == NULL) { | |
1047 return NGX_CONF_ERROR; | |
1048 } | |
1049 | |
1050 data = &value[s].data[i]; | |
1051 | |
1052 if (value[s].data[i] == '%') { | |
1053 i++; | |
1054 | |
1055 if (i == value[s].len) { | |
1056 goto invalid; | |
1057 } | |
1058 | |
1059 if (value[s].data[i] == '{') { | |
1060 i++; | |
1061 | |
1062 arg.data = &value[s].data[i]; | |
1063 | |
1064 while (i < value[s].len && value[s].data[i] != '}') { | |
1065 i++; | |
1066 } | |
1067 | |
1068 arg.len = &value[s].data[i] - arg.data; | |
1069 | |
1070 if (i == value[s].len || arg.len == 0) { | |
1071 goto invalid; | |
1072 } | |
1073 | |
1074 i++; | |
1075 | |
1076 } else { | |
1077 arg.len = 0; | |
1078 } | |
1079 | |
1080 fname = &value[s].data[i]; | |
1081 | |
1082 while (i < value[s].len | |
1083 && ((value[s].data[i] >= 'a' && value[s].data[i] <= 'z') | |
1084 || value[s].data[i] == '_')) | |
1085 { | |
1086 i++; | |
1087 } | |
1088 | |
1089 fname_len = &value[s].data[i] - fname; | |
1090 | |
1091 if (fname_len == 0) { | |
1092 goto invalid; | |
1093 } | |
1094 | |
1095 for (name = ngx_http_log_fmt_ops; name->run; name++) { | |
1096 if (name->name.len == 0) { | |
1097 name = (ngx_http_log_op_name_t *) name->run; | |
1098 } | |
1099 | |
1100 if (name->name.len == fname_len | |
1101 && ngx_strncmp(name->name.data, fname, fname_len) == 0) | |
1102 { | |
1103 if (name->compile == NULL) { | |
1104 if (arg.len) { | |
1105 fname[fname_len] = '\0'; | |
1106 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1107 "\"%s\" must not have argument", | |
1108 data); | |
1109 return NGX_CONF_ERROR; | |
1110 } | |
1111 | |
1112 op->len = name->len; | |
1113 op->getlen = name->getlen; | |
1114 op->run = name->run; | |
1115 op->data = 0; | |
1116 | |
1117 break; | |
1118 } | |
1119 | |
1120 if (arg.len == 0) { | |
1121 fname[fname_len] = '\0'; | |
1122 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1123 "\"%s\" requires argument", | |
1124 data); | |
1125 return NGX_CONF_ERROR; | |
1126 } | |
1127 | |
1128 a = ngx_palloc(cf->pool, sizeof(ngx_str_t)); | |
1129 if (a == NULL) { | |
1130 return NGX_CONF_ERROR; | |
1131 } | |
1132 | |
1133 *a = arg; | |
1134 if (name->compile(cf, op, a) == NGX_ERROR) { | |
1135 return NGX_CONF_ERROR; | |
1136 } | |
1137 | |
1138 break; | |
1139 } | |
1140 } | |
1141 | |
1142 if (name->name.len == 0) { | |
1143 goto invalid; | |
1144 } | |
1145 | |
1146 } else if (value[s].data[i] == '$') { | |
1147 | |
1148 if (++i == value[s].len) { | |
1149 goto invalid; | |
1150 } | |
1151 | |
1152 if (value[s].data[i] == '{') { | |
1153 bracket = 1; | |
1154 | |
1155 if (++i == value[s].len) { | |
1156 goto invalid; | |
1157 } | |
1158 | |
1159 var.data = &value[s].data[i]; | |
1160 | |
1161 } else { | |
1162 bracket = 0; | |
1163 var.data = &value[s].data[i]; | |
1164 } | |
1165 | |
1166 for (var.len = 0; i < value[s].len; i++, var.len++) { | |
1167 ch = value[s].data[i]; | |
1168 | |
1169 if (ch == '}' && bracket) { | |
1170 i++; | |
1171 bracket = 0; | |
1172 break; | |
1173 } | |
1174 | |
1175 if ((ch >= 'A' && ch <= 'Z') | |
1176 || (ch >= 'a' && ch <= 'z') | |
1177 || (ch >= '0' && ch <= '9') | |
1178 || ch == '_') | |
1179 { | |
1180 continue; | |
1181 } | |
1182 | |
1183 break; | |
1184 } | |
1185 | |
1186 if (bracket) { | |
1187 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1188 "the closing bracket in \"%V\" " | |
1189 "variable is missing", &var); | |
1190 return NGX_CONF_ERROR; | |
1191 } | |
1192 | |
1193 if (var.len == 0) { | |
1194 goto invalid; | |
1195 } | |
1196 | |
1197 if (ngx_http_log_variable_compile(cf, op, &var) != NGX_OK) { | |
1198 return NGX_CONF_ERROR; | |
1199 } | |
1200 | |
1201 } else { | |
1202 i++; | |
1203 | |
1204 while (i < value[s].len | |
1205 && value[s].data[i] != '$' | |
1206 && value[s].data[i] != '%') | |
1207 { | |
1208 i++; | |
1209 } | |
1210 | |
1211 len = &value[s].data[i] - data; | |
1212 | |
1213 if (len) { | |
1214 | |
1215 op->len = len; | |
1216 op->getlen = NULL; | |
1217 | |
1218 if (len <= sizeof(uintptr_t)) { | |
1219 op->run = ngx_http_log_copy_short; | |
1220 op->data = 0; | |
1221 | |
1222 while (len--) { | |
1223 op->data <<= 8; | |
1224 op->data |= data[len]; | |
1225 } | |
1226 | |
1227 } else { | |
1228 op->run = ngx_http_log_copy_long; | |
1229 | |
1230 p = ngx_palloc(cf->pool, len); | |
1231 if (p == NULL) { | |
1232 return NGX_CONF_ERROR; | |
1233 } | |
1234 | |
1235 ngx_memcpy(p, data, len); | |
1236 op->data = (uintptr_t) p; | |
1237 } | |
1238 } | |
1239 } | |
1240 } | |
1241 } | |
1242 | |
1243 return NGX_CONF_OK; | |
1244 | |
1245 invalid: | |
1246 | |
1247 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data); | |
1248 | |
1249 return NGX_CONF_ERROR; | |
1250 } | |
1251 | |
1252 | |
1253 static ngx_int_t | |
1254 ngx_http_log_init(ngx_cycle_t *cycle) | |
1255 { | |
1256 ngx_http_core_main_conf_t *cmcf; | |
1257 | |
1258 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module); | |
1259 | |
1260 cmcf->log_handler = ngx_http_log_handler; | |
1261 | |
1262 return NGX_OK; | |
1263 } |