Mercurial > hg > nginx
comparison src/http/ngx_http_upstream.c @ 2666:81556a9b6488
support Expires in cache
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 03 Apr 2009 15:48:19 +0000 |
parents | 4d627567c324 |
children | c1ac00c2bc75 |
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2665:4d627567c324 | 2666:81556a9b6488 |
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72 static ngx_int_t | 72 static ngx_int_t |
73 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, | 73 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r, |
74 ngx_table_elt_t *h, ngx_uint_t offset); | 74 ngx_table_elt_t *h, ngx_uint_t offset); |
75 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, | 75 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, |
76 ngx_table_elt_t *h, ngx_uint_t offset); | 76 ngx_table_elt_t *h, ngx_uint_t offset); |
77 static ngx_int_t ngx_http_upstream_process_expires(ngx_http_request_t *r, | |
78 ngx_table_elt_t *h, ngx_uint_t offset); | |
77 static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r, | 79 static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r, |
78 ngx_table_elt_t *h, ngx_uint_t offset); | 80 ngx_table_elt_t *h, ngx_uint_t offset); |
79 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, | 81 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, |
80 ngx_table_elt_t *h, ngx_uint_t offset); | 82 ngx_table_elt_t *h, ngx_uint_t offset); |
81 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, | 83 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r, |
190 offsetof(ngx_http_upstream_headers_in_t, cache_control), | 192 offsetof(ngx_http_upstream_headers_in_t, cache_control), |
191 ngx_http_upstream_copy_multi_header_lines, | 193 ngx_http_upstream_copy_multi_header_lines, |
192 offsetof(ngx_http_headers_out_t, cache_control), 1 }, | 194 offsetof(ngx_http_headers_out_t, cache_control), 1 }, |
193 | 195 |
194 { ngx_string("Expires"), | 196 { ngx_string("Expires"), |
195 ngx_http_upstream_process_header_line, | 197 ngx_http_upstream_process_expires, 0, |
196 offsetof(ngx_http_upstream_headers_in_t, expires), | |
197 ngx_http_upstream_copy_header_line, | 198 ngx_http_upstream_copy_header_line, |
198 offsetof(ngx_http_headers_out_t, expires), 1 }, | 199 offsetof(ngx_http_headers_out_t, expires), 1 }, |
199 | 200 |
200 { ngx_string("Accept-Ranges"), | 201 { ngx_string("Accept-Ranges"), |
201 ngx_http_upstream_process_header_line, | 202 ngx_http_upstream_process_header_line, |
2837 return NGX_OK; | 2838 return NGX_OK; |
2838 } | 2839 } |
2839 | 2840 |
2840 | 2841 |
2841 static ngx_int_t | 2842 static ngx_int_t |
2843 ngx_http_upstream_process_expires(ngx_http_request_t *r, ngx_table_elt_t *h, | |
2844 ngx_uint_t offset) | |
2845 { | |
2846 time_t expires; | |
2847 | |
2848 r->upstream->headers_in.expires = h; | |
2849 | |
2850 if (r->cache == NULL) { | |
2851 return NGX_OK; | |
2852 } | |
2853 | |
2854 if (r->cache->valid_sec != 0) { | |
2855 return NGX_OK; | |
2856 } | |
2857 | |
2858 expires = ngx_http_parse_time(h->value.data, h->value.len); | |
2859 | |
2860 if (expires == NGX_ERROR || expires < ngx_time()) { | |
2861 r->upstream->cacheable = 0; | |
2862 return NGX_OK; | |
2863 } | |
2864 | |
2865 r->cache->valid_sec = expires; | |
2866 | |
2867 return NGX_OK; | |
2868 } | |
2869 | |
2870 | |
2871 static ngx_int_t | |
2842 ngx_http_upstream_process_accel_expires(ngx_http_request_t *r, | 2872 ngx_http_upstream_process_accel_expires(ngx_http_request_t *r, |
2843 ngx_table_elt_t *h, ngx_uint_t offset) | 2873 ngx_table_elt_t *h, ngx_uint_t offset) |
2844 { | 2874 { |
2845 u_char *p; | 2875 u_char *p; |
2846 size_t len; | 2876 size_t len; |