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comparison src/http/ngx_http_variables.c @ 641:5e8fb59c18c1 release-0.3.42

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nginx-0.3.42-RELEASE import *) Feature: the "bind" option of the "listen" directive in IMAP/POP3 proxy. *) Bugfix: if the same capture in the "rewrite" directive was used more then once. *) Bugfix: the $sent_http_content_type, $sent_http_content_length, $sent_http_last_modified, $sent_http_connection, $sent_http_keep_alive, and $sent_http_transfer_encoding variables were not written to access log. *) Bugfix: the $sent_http_cache_control returned value of the single "Cache-Control" response header line.
author Igor Sysoev <igor@sysoev.ru>
date Wed, 26 Apr 2006 09:52:47 +0000
parents e60fe4cf1d4e
children 95d7da23ea53
comparison
equal deleted inserted replaced
640:5fd31c2fe4a8 641:5e8fb59c18c1
45 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, 45 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r,
46 ngx_http_variable_value_t *v, uintptr_t data); 46 ngx_http_variable_value_t *v, uintptr_t data);
47 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, 47 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
48 ngx_http_variable_value_t *v, uintptr_t data); 48 ngx_http_variable_value_t *v, uintptr_t data);
49 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, 49 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r,
50 ngx_http_variable_value_t *v, uintptr_t data);
51
52 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r,
53 ngx_http_variable_value_t *v, uintptr_t data);
54 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r,
55 ngx_http_variable_value_t *v, uintptr_t data);
56 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
57 ngx_http_variable_value_t *v, uintptr_t data);
58 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r,
59 ngx_http_variable_value_t *v, uintptr_t data);
60 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
61 ngx_http_variable_value_t *v, uintptr_t data);
62 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
50 ngx_http_variable_value_t *v, uintptr_t data); 63 ngx_http_variable_value_t *v, uintptr_t data);
51 64
52 65
53 /* 66 /*
54 * TODO: 67 * TODO:
57 * SERVER_SOFTWARE 70 * SERVER_SOFTWARE
58 * 71 *
59 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) 72 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
60 */ 73 */
61 74
75 /*
76 * the $http_host, $http_user_agent, $http_referer, $http_via,
77 * and $http_x_forwarded_for variables may be handled by generic
78 * ngx_http_variable_unknown_header_in(), but for perfomance reasons
79 * they are handled using dedicated entries
80 */
81
62 static ngx_http_variable_t ngx_http_core_variables[] = { 82 static ngx_http_variable_t ngx_http_core_variables[] = {
63 83
64 { ngx_string("http_host"), NULL, ngx_http_variable_header, 84 { ngx_string("http_host"), NULL, ngx_http_variable_header,
65 offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, 85 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
66 86
143 0, 0, 0 }, 163 0, 0, 0 },
144 164
145 { ngx_string("request_completion"), NULL, 165 { ngx_string("request_completion"), NULL,
146 ngx_http_variable_request_completion, 166 ngx_http_variable_request_completion,
147 0, 0, 0 }, 167 0, 0, 0 },
168
169 { ngx_string("sent_http_content_type"), NULL,
170 ngx_http_variable_sent_content_type, 0, 0, 0 },
171
172 { ngx_string("sent_http_content_length"), NULL,
173 ngx_http_variable_sent_content_length, 0, 0, 0 },
174
175 { ngx_string("sent_http_last_modified"), NULL,
176 ngx_http_variable_sent_last_modified, 0, 0, 0 },
177
178 { ngx_string("sent_http_connection"), NULL,
179 ngx_http_variable_sent_connection, 0, 0, 0 },
180
181 { ngx_string("sent_http_keep_alive"), NULL,
182 ngx_http_variable_sent_keep_alive, 0, 0, 0 },
183
184 { ngx_string("sent_http_transfer_encoding"), NULL,
185 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 },
186
187 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers,
188 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 },
148 189
149 { ngx_string("limit_rate"), ngx_http_variable_request_set_size, 190 { ngx_string("limit_rate"), ngx_http_variable_request_set_size,
150 ngx_http_variable_request, 191 ngx_http_variable_request,
151 offsetof(ngx_http_request_t, limit_rate), 192 offsetof(ngx_http_request_t, limit_rate),
152 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOCACHABLE, 0 }, 193 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOCACHABLE, 0 },
845 return NGX_OK; 886 return NGX_OK;
846 } 887 }
847 888
848 889
849 static ngx_int_t 890 static ngx_int_t
891 ngx_http_variable_sent_content_type(ngx_http_request_t *r,
892 ngx_http_variable_value_t *v, uintptr_t data)
893 {
894 if (r->headers_out.content_type.len) {
895 v->len = r->headers_out.content_type.len;
896 v->valid = 1;
897 v->no_cachable = 0;
898 v->not_found = 0;
899 v->data = r->headers_out.content_type.data;
900
901 } else {
902 v->not_found = 1;
903 }
904
905 return NGX_OK;
906 }
907
908
909 static ngx_int_t
910 ngx_http_variable_sent_content_length(ngx_http_request_t *r,
911 ngx_http_variable_value_t *v, uintptr_t data)
912 {
913 u_char *p;
914
915 if (r->headers_out.content_length) {
916 v->len = r->headers_out.content_length->value.len;
917 v->valid = 1;
918 v->no_cachable = 0;
919 v->not_found = 0;
920 v->data = r->headers_out.content_length->value.data;
921
922 return NGX_OK;
923 }
924
925 if (r->headers_out.content_length_n >= 0) {
926 p = ngx_palloc(r->pool, NGX_OFF_T_LEN);
927 if (p == NULL) {
928 return NGX_ERROR;
929 }
930
931 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p;
932 v->valid = 1;
933 v->no_cachable = 0;
934 v->not_found = 0;
935 v->data = p;
936
937 return NGX_OK;
938 }
939
940 v->not_found = 1;
941
942 return NGX_OK;
943 }
944
945
946 static ngx_int_t
947 ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
948 ngx_http_variable_value_t *v, uintptr_t data)
949 {
950 u_char *p;
951
952 if (r->headers_out.last_modified) {
953 v->len = r->headers_out.last_modified->value.len;
954 v->valid = 1;
955 v->no_cachable = 0;
956 v->not_found = 0;
957 v->data = r->headers_out.last_modified->value.data;
958
959 return NGX_OK;
960 }
961
962 if (r->headers_out.last_modified_time >= 0) {
963 p = ngx_palloc(r->pool,
964 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1);
965 if (p == NULL) {
966 return NGX_ERROR;
967 }
968
969 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p;
970 v->valid = 1;
971 v->no_cachable = 0;
972 v->not_found = 0;
973 v->data = p;
974
975 return NGX_OK;
976 }
977
978 v->not_found = 1;
979
980 return NGX_OK;
981 }
982
983
984 static ngx_int_t
985 ngx_http_variable_sent_connection(ngx_http_request_t *r,
986 ngx_http_variable_value_t *v, uintptr_t data)
987 {
988 size_t len;
989 char *p;
990
991 if (r->keepalive) {
992 len = sizeof("keep-alive") - 1;
993 p = "keep-alive";
994
995 } else {
996 len = sizeof("close") - 1;
997 p = "close";
998 }
999
1000 v->len = len;
1001 v->valid = 1;
1002 v->no_cachable = 0;
1003 v->not_found = 0;
1004 v->data = (u_char *) p;
1005
1006 return NGX_OK;
1007 }
1008
1009
1010 static ngx_int_t
1011 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
1012 ngx_http_variable_value_t *v, uintptr_t data)
1013 {
1014 u_char *p;
1015 ngx_http_core_loc_conf_t *clcf;
1016
1017 if (r->keepalive) {
1018 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
1019
1020 if (clcf->keepalive_header) {
1021
1022 p = ngx_palloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN);
1023 if (p == NULL) {
1024 return NGX_ERROR;
1025 }
1026
1027 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p;
1028 v->valid = 1;
1029 v->no_cachable = 0;
1030 v->not_found = 0;
1031 v->data = p;
1032
1033 return NGX_OK;
1034 }
1035 }
1036
1037 v->not_found = 1;
1038
1039 return NGX_OK;
1040 }
1041
1042
1043 static ngx_int_t
1044 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
1045 ngx_http_variable_value_t *v, uintptr_t data)
1046 {
1047 if (r->chunked) {
1048 v->len = sizeof("chunked") - 1;
1049 v->valid = 1;
1050 v->no_cachable = 0;
1051 v->not_found = 0;
1052 v->data = (u_char *) "chunked";
1053
1054 } else {
1055 v->not_found = 1;
1056 }
1057
1058 return NGX_OK;
1059 }
1060
1061
1062 static ngx_int_t
850 ngx_http_variable_request_completion(ngx_http_request_t *r, 1063 ngx_http_variable_request_completion(ngx_http_request_t *r,
851 ngx_http_variable_value_t *v, uintptr_t data) 1064 ngx_http_variable_value_t *v, uintptr_t data)
852 { 1065 {
853 if (r->request_complete) { 1066 if (r->request_complete) {
854 v->len = 2; 1067 v->len = 2;