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comparison src/http/ngx_http_header_filter.c @ 41:59e7c7f30d49

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nginx-0.0.1-2002-12-26-19:26:23 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 26 Dec 2002 16:26:23 +0000
parents 53cb81681040
children cd035a94e0b6
comparison
equal deleted inserted replaced
40:d5d4f3bba6f0 41:59e7c7f30d49
4 #include <ngx_config.h> 4 #include <ngx_config.h>
5 #include <ngx_core.h> 5 #include <ngx_core.h>
6 #include <ngx_string.h> 6 #include <ngx_string.h>
7 #include <ngx_table.h> 7 #include <ngx_table.h>
8 #include <ngx_hunk.h> 8 #include <ngx_hunk.h>
9 #include <ngx_config_file.h>
9 #include <ngx_http.h> 10 #include <ngx_http.h>
11 #include <ngx_http_write_filter.h>
10 12
11 13
12 static int ngx_http_header_filter(ngx_http_request_t *r); 14 static int ngx_http_header_filter(ngx_http_request_t *r);
13 15
14 ngx_http_module_t ngx_http_header_filter_module = { 16
17 ngx_http_module_t ngx_http_header_filter_module_ctx = {
15 NGX_HTTP_MODULE, 18 NGX_HTTP_MODULE,
16 19
17 NULL, /* create server config */ 20 NULL, /* create server config */
18 NULL, /* create location config */ 21 NULL, /* create location config */
19 NULL, /* module directives */ 22
20
21 NULL, /* init module */
22 NULL, /* translate handler */ 23 NULL, /* translate handler */
23 24
24 ngx_http_header_filter, /* output header filter */ 25 ngx_http_header_filter, /* output header filter */
25 NULL, /* next output header filter */ 26 NULL, /* next output header filter */
26 NULL, /* output body filter */ 27 NULL, /* output body filter */
27 NULL /* next output body filter */ 28 NULL /* next output body filter */
28 }; 29 };
29 30
30 31
32 ngx_module_t ngx_http_header_filter_module = {
33 &ngx_http_header_filter_module_ctx, /* module context */
34 NULL, /* module directives */
35 NGX_HTTP_MODULE_TYPE, /* module type */
36 NULL /* init module */
37 };
38
39
31 static char server_string[] = "Server: " NGINX_VER CRLF; 40 static char server_string[] = "Server: " NGINX_VER CRLF;
32 41
33 42
34 static ngx_str_t http_codes[] = { 43 static ngx_str_t http_codes[] = {
35 44
45 ngx_string("200 OK"),
46 #if 0
36 { 6, "200 OK" }, 47 { 6, "200 OK" },
48 #endif
37 49
38 { 21, "301 Moved Permanently" }, 50 { 21, "301 Moved Permanently" },
39 { 21, "302 Moved Temporarily" }, 51 { 21, "302 Moved Temporarily" },
40 { 0, NULL }, 52 { 0, NULL },
41 { 16, "304 Not Modified" }, 53 { 16, "304 Not Modified" },
57 time_t ims; 69 time_t ims;
58 ngx_hunk_t *h; 70 ngx_hunk_t *h;
59 ngx_chain_t *ch; 71 ngx_chain_t *ch;
60 ngx_table_elt_t *header; 72 ngx_table_elt_t *header;
61 73
62 if (r->http_version < NGX_HTTP_VERSION_10) 74 if (r->http_version < NGX_HTTP_VERSION_10) {
63 return NGX_OK; 75 return NGX_OK;
76 }
64 77
65 /* 9 is for "HTTP/1.x ", 2 is for trailing "\r\n" 78 /* 9 is for "HTTP/1.x ", 2 is for trailing "\r\n"
66 and 2 is for end of header */ 79 and 2 is for end of header */
67 len = 9 + 2 + 2; 80 len = 9 + 2 + 2;
68 81
87 } 100 }
88 101
89 /* status line */ 102 /* status line */
90 if (r->headers_out.status_line.len) { 103 if (r->headers_out.status_line.len) {
91 len += r->headers_out.status_line.len; 104 len += r->headers_out.status_line.len;
92 } else { 105
93 if (r->headers_out.status < NGX_HTTP_MOVED_PERMANENTLY) 106 } else {
107 if (r->headers_out.status < NGX_HTTP_MOVED_PERMANENTLY) {
94 status = r->headers_out.status - NGX_HTTP_OK; 108 status = r->headers_out.status - NGX_HTTP_OK;
95 109
96 else if (r->headers_out.status < NGX_HTTP_BAD_REQUEST) 110 } else if (r->headers_out.status < NGX_HTTP_BAD_REQUEST) {
97 status = r->headers_out.status - NGX_HTTP_MOVED_PERMANENTLY + 1; 111 status = r->headers_out.status - NGX_HTTP_MOVED_PERMANENTLY + 1;
98 112
99 else if (r->headers_out.status < NGX_HTTP_INTERNAL_SERVER_ERROR) 113 } else if (r->headers_out.status < NGX_HTTP_INTERNAL_SERVER_ERROR) {
100 status = r->headers_out.status - NGX_HTTP_BAD_REQUEST + 1 + 4; 114 status = r->headers_out.status - NGX_HTTP_BAD_REQUEST + 1 + 4;
101 115
102 else 116 } else {
103 status = r->headers_out.status 117 status = r->headers_out.status
104 - NGX_HTTP_INTERNAL_SERVER_ERROR + 1 + 4 + 5; 118 - NGX_HTTP_INTERNAL_SERVER_ERROR + 1 + 4 + 5;
119 }
105 120
106 len += http_codes[status].len; 121 len += http_codes[status].len;
107 } 122 }
108 123
109 if (r->headers_out.server && r->headers_out.server->key.len) { 124 if (r->headers_out.server && r->headers_out.server->key.len) {
120 /* "Date: ... \r\n"; */ 135 /* "Date: ... \r\n"; */
121 len += 37; 136 len += 37;
122 } 137 }
123 138
124 /* 2^64 is 20 characters */ 139 /* 2^64 is 20 characters */
125 if (r->headers_out.content_length >= 0) 140 if (r->headers_out.content_length >= 0) {
126 len += 48; 141 len += 48;
142 }
127 143
128 #if 0 144 #if 0
129 if (r->headers_out.content_type.len) 145 if (r->headers_out.content_type.len)
130 len += r->headers_out.content_type.len + 16; 146 len += r->headers_out.content_type.len + 16;
131 #endif 147 #endif
136 } else if (r->headers_out.last_modified_time != -1) { 152 } else if (r->headers_out.last_modified_time != -1) {
137 /* "Last-Modified: ... \r\n"; */ 153 /* "Last-Modified: ... \r\n"; */
138 len += 46; 154 len += 46;
139 } 155 }
140 156
141 if (r->keepalive) 157 if (r->keepalive) {
142 len += 24; 158 len += 24;
143 else 159 } else {
144 len += 19; 160 len += 19;
161 }
145 162
146 header = (ngx_table_elt_t *) r->headers_out.headers->elts; 163 header = (ngx_table_elt_t *) r->headers_out.headers->elts;
147 for (i = 0; i < r->headers_out.headers->nelts; i++) { 164 for (i = 0; i < r->headers_out.headers->nelts; i++) {
148 if (header[i].key.len == 0) 165 if (header[i].key.len == 0) {
149 continue; 166 continue;
167 }
150 168
151 len += header[i].key.len + 2 + header[i].value.len + 2; 169 len += header[i].key.len + 2 + header[i].value.len + 2;
152 } 170 }
153 171
154 ngx_test_null(h, ngx_create_temp_hunk(r->pool, len, 0, 64), NGX_ERROR); 172 ngx_test_null(h, ngx_create_temp_hunk(r->pool, len, 0, 64), NGX_ERROR);
181 h->last.mem += ngx_http_get_time(h->last.mem, time(NULL)); 199 h->last.mem += ngx_http_get_time(h->last.mem, time(NULL));
182 *(h->last.mem++) = CR; *(h->last.mem++) = LF; 200 *(h->last.mem++) = CR; *(h->last.mem++) = LF;
183 } 201 }
184 202
185 /* 2^64 is 20 characters */ 203 /* 2^64 is 20 characters */
186 if (r->headers_out.content_length >= 0) 204 if (r->headers_out.content_length >= 0) {
187 h->last.mem += ngx_snprintf(h->last.mem, 49, "Content-Length: %u" CRLF, 205 h->last.mem += ngx_snprintf(h->last.mem, 49, "Content-Length: %u" CRLF,
188 r->headers_out.content_length); 206 r->headers_out.content_length);
207 }
189 208
190 #if 0 209 #if 0
191 if (r->headers_out.content_type.len) { 210 if (r->headers_out.content_type.len) {
192 ngx_memcpy(h->last.mem, "Content-Type: ", 14); 211 ngx_memcpy(h->last.mem, "Content-Type: ", 14);
193 h->last.mem += 14; 212 h->last.mem += 14;
217 ngx_memcpy(h->last.mem, "Connection: close" CRLF, 19); 236 ngx_memcpy(h->last.mem, "Connection: close" CRLF, 19);
218 h->last.mem += 19; 237 h->last.mem += 19;
219 } 238 }
220 239
221 for (i = 0; i < r->headers_out.headers->nelts; i++) { 240 for (i = 0; i < r->headers_out.headers->nelts; i++) {
222 if (header[i].key.len == 0) 241 if (header[i].key.len == 0) {
223 continue; 242 continue;
243 }
224 244
225 ngx_memcpy(h->last.mem, header[i].key.data, header[i].key.len); 245 ngx_memcpy(h->last.mem, header[i].key.data, header[i].key.len);
226 h->last.mem += header[i].key.len; 246 h->last.mem += header[i].key.len;
227 *(h->last.mem++) = ':' ; *(h->last.mem++) = ' ' ; 247 *(h->last.mem++) = ':' ; *(h->last.mem++) = ' ' ;
228 248
237 /**/ 257 /**/
238 258
239 /* end of HTTP header */ 259 /* end of HTTP header */
240 *(h->last.mem++) = CR; *(h->last.mem++) = LF; 260 *(h->last.mem++) = CR; *(h->last.mem++) = LF;
241 261
242 if (r->header_only) 262 if (r->header_only) {
243 h->type |= NGX_HUNK_LAST; 263 h->type |= NGX_HUNK_LAST;
264 }
244 265
245 ngx_test_null(ch, ngx_palloc(r->pool, sizeof(ngx_chain_t)), NGX_ERROR); 266 ngx_test_null(ch, ngx_palloc(r->pool, sizeof(ngx_chain_t)), NGX_ERROR);
246 267
247 ch->hunk = h; 268 ch->hunk = h;
248 ch->next = NULL; 269 ch->next = NULL;