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comparison src/http/ngx_http_header_filter.c @ 42:41ccba1aba45 NGINX_0_1_21

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nginx 0.1.21 *) Bugfix: the ngx_http_stub_status_module showed incorrect statistics if "rtsig" method was used or if several worker process ran on SMP. *) Bugfix: nginx could not be built by the icc compiler on Linux or if the zlib-1.2.x library was building from sources. *) Bugfix: nginx could not be built on NetBSD 2.0.
author Igor Sysoev <http://sysoev.ru>
date Tue, 22 Feb 2005 00:00:00 +0300
parents 45fe5b98a9de
children 6cfc63e68377
comparison
equal deleted inserted replaced
41:4d8e7a81b3a0 42:41ccba1aba45
115 115
116 { ngx_null_string, 0 } 116 { ngx_null_string, 0 }
117 }; 117 };
118 118
119 119
120 static ngx_int_t ngx_http_header_filter(ngx_http_request_t *r) 120 static ngx_int_t
121 ngx_http_header_filter(ngx_http_request_t *r)
121 { 122 {
122 u_char *p; 123 u_char *p;
123 size_t len; 124 size_t len;
124 ngx_uint_t status, i; 125 ngx_uint_t status, i;
125 ngx_buf_t *b; 126 ngx_buf_t *b;
144 r->headers_out.last_modified_time = -1; 145 r->headers_out.last_modified_time = -1;
145 r->headers_out.last_modified = NULL; 146 r->headers_out.last_modified = NULL;
146 } 147 }
147 } 148 }
148 149
149 /* 2 is for trailing "\r\n" and 2 is for "\r\n" in the end of header */ 150 len = sizeof("HTTP/1.x ") - 1 + sizeof(CRLF) - 1
150 len = sizeof("HTTP/1.x ") - 1 + 2 + 2; 151 /* the end of the header */
152 + sizeof(CRLF) - 1;
151 153
152 /* status line */ 154 /* status line */
153 155
154 if (r->headers_out.status_line.len) { 156 if (r->headers_out.status_line.len) {
155 len += r->headers_out.status_line.len; 157 len += r->headers_out.status_line.len;
277 279
278 if (header[i].key.len == 0) { 280 if (header[i].key.len == 0) {
279 continue; 281 continue;
280 } 282 }
281 283
282 /* 2 is for ": " and 2 is for "\r\n" */ 284 len += header[i].key.len + sizeof(": ") - 1 + header[i].value.len
283 len += header[i].key.len + 2 + header[i].value.len + 2; 285 + sizeof(CRLF) - 1;
284 } 286 }
285 287
286 if (!(b = ngx_create_temp_buf(r->pool, len))) { 288 if (!(b = ngx_create_temp_buf(r->pool, len))) {
287 return NGX_ERROR; 289 return NGX_ERROR;
288 } 290 }
297 299
298 } else { 300 } else {
299 b->last = ngx_cpymem(b->last, http_codes[status].data, 301 b->last = ngx_cpymem(b->last, http_codes[status].data,
300 http_codes[status].len); 302 http_codes[status].len);
301 } 303 }
302 *(b->last++) = CR; *(b->last++) = LF; 304 *b->last++ = CR; *b->last++ = LF;
303 305
304 if (!(r->headers_out.server && r->headers_out.server->key.len)) { 306 if (!(r->headers_out.server && r->headers_out.server->key.len)) {
305 b->last = ngx_cpymem(b->last, server_string, sizeof(server_string) - 1); 307 b->last = ngx_cpymem(b->last, server_string, sizeof(server_string) - 1);
306 } 308 }
307 309
308 if (!(r->headers_out.date && r->headers_out.date->key.len)) { 310 if (!(r->headers_out.date && r->headers_out.date->key.len)) {
309 b->last = ngx_cpymem(b->last, "Date: ", sizeof("Date: ") - 1); 311 b->last = ngx_cpymem(b->last, "Date: ", sizeof("Date: ") - 1);
310 b->last = ngx_cpymem(b->last, ngx_cached_http_time.data, 312 b->last = ngx_cpymem(b->last, ngx_cached_http_time.data,
311 ngx_cached_http_time.len); 313 ngx_cached_http_time.len);
312 314
313 *(b->last++) = CR; *(b->last++) = LF; 315 *b->last++ = CR; *b->last++ = LF;
314 } 316 }
315 317
316 if (r->headers_out.content_length == NULL) { 318 if (r->headers_out.content_length == NULL) {
317 if (r->headers_out.content_length_n >= 0) { 319 if (r->headers_out.content_length_n >= 0) {
318 b->last = ngx_sprintf(b->last, "Content-Length: %O" CRLF, 320 b->last = ngx_sprintf(b->last, "Content-Length: %O" CRLF,
335 337
336 r->headers_out.content_type->value.len = b->last - p; 338 r->headers_out.content_type->value.len = b->last - p;
337 r->headers_out.content_type->value.data = p; 339 r->headers_out.content_type->value.data = p;
338 } 340 }
339 341
340 *(b->last++) = CR; *(b->last++) = LF; 342 *b->last++ = CR; *b->last++ = LF;
341 } 343 }
342 344
343 if (r->headers_out.location 345 if (r->headers_out.location
344 && r->headers_out.location->value.len 346 && r->headers_out.location->value.len
345 && r->headers_out.location->value.data[0] == '/') 347 && r->headers_out.location->value.data[0] == '/')
358 r->headers_out.location->value.len); 360 r->headers_out.location->value.len);
359 361
360 r->headers_out.location->value.len = b->last - p; 362 r->headers_out.location->value.len = b->last - p;
361 r->headers_out.location->value.data = p; 363 r->headers_out.location->value.data = p;
362 364
363 *(b->last++) = CR; *(b->last++) = LF; 365 *b->last++ = CR; *b->last++ = LF;
364 } 366 }
365 367
366 if (!(r->headers_out.last_modified && r->headers_out.last_modified->key.len) 368 if (!(r->headers_out.last_modified && r->headers_out.last_modified->key.len)
367 && r->headers_out.last_modified_time != -1) 369 && r->headers_out.last_modified_time != -1)
368 { 370 {
369 b->last = ngx_cpymem(b->last, "Last-Modified: ", 371 b->last = ngx_cpymem(b->last, "Last-Modified: ",
370 sizeof("Last-Modified: ") - 1); 372 sizeof("Last-Modified: ") - 1);
371 b->last = ngx_http_time(b->last, r->headers_out.last_modified_time); 373 b->last = ngx_http_time(b->last, r->headers_out.last_modified_time);
372 374
373 *(b->last++) = CR; *(b->last++) = LF; 375 *b->last++ = CR; *b->last++ = LF;
374 } 376 }
375 377
376 if (r->chunked) { 378 if (r->chunked) {
377 b->last = ngx_cpymem(b->last, "Transfer-Encoding: chunked" CRLF, 379 b->last = ngx_cpymem(b->last, "Transfer-Encoding: chunked" CRLF,
378 sizeof("Transfer-Encoding: chunked" CRLF) - 1); 380 sizeof("Transfer-Encoding: chunked" CRLF) - 1);
410 if (header[i].key.len == 0) { 412 if (header[i].key.len == 0) {
411 continue; 413 continue;
412 } 414 }
413 415
414 b->last = ngx_cpymem(b->last, header[i].key.data, header[i].key.len); 416 b->last = ngx_cpymem(b->last, header[i].key.data, header[i].key.len);
415 *(b->last++) = ':' ; *(b->last++) = ' ' ; 417 *b->last++ = ':' ; *b->last++ = ' ' ;
416 418
417 b->last = ngx_cpymem(b->last, header[i].value.data, 419 b->last = ngx_cpymem(b->last, header[i].value.data,
418 header[i].value.len); 420 header[i].value.len);
419 *(b->last++) = CR; *(b->last++) = LF; 421 *b->last++ = CR; *b->last++ = LF;
420 } 422 }
421 423
422 #if (NGX_DEBUG) 424 #if (NGX_DEBUG)
423 *(b->last) = '\0'; 425 *b->last = '\0';
424 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "%s\n", b->pos); 426 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "%s\n", b->pos);
425 #endif 427 #endif
426 428
427 /* the end of HTTP header */ 429 /* the end of HTTP header */
428 *(b->last++) = CR; *(b->last++) = LF; 430 *b->last++ = CR; *b->last++ = LF;
429 431
430 r->header_size = b->last - b->pos; 432 r->header_size = b->last - b->pos;
431 433
432 if (r->header_only) { 434 if (r->header_only) {
433 b->last_buf = 1; 435 b->last_buf = 1;
442 444
443 return ngx_http_write_filter(r, ln); 445 return ngx_http_write_filter(r, ln);
444 } 446 }
445 447
446 448
447 static ngx_int_t ngx_http_header_filter_init(ngx_cycle_t *cycle) 449 static ngx_int_t
450 ngx_http_header_filter_init(ngx_cycle_t *cycle)
448 { 451 {
449 ngx_http_top_header_filter = ngx_http_header_filter; 452 ngx_http_top_header_filter = ngx_http_header_filter;
450 453
451 return NGX_OK; 454 return NGX_OK;
452 } 455 }