Mercurial > hg > nginx
comparison src/http/ngx_http_copy_filter.c @ 334:af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 12 May 2004 05:37:55 +0000 |
parents | src/http/ngx_http_output_filter.c@e0f3f238db09 |
children | 6bdf858bff8c |
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333:be40e9893a19 | 334:af451db3fe99 |
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1 | |
2 #include <ngx_config.h> | |
3 #include <ngx_core.h> | |
4 #include <ngx_http.h> | |
5 | |
6 | |
7 typedef struct { | |
8 ngx_bufs_t bufs; | |
9 } ngx_http_copy_filter_conf_t; | |
10 | |
11 | |
12 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf); | |
13 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, | |
14 void *parent, void *child); | |
15 static ngx_int_t ngx_http_copy_filter_init(ngx_cycle_t *cycle); | |
16 | |
17 | |
18 static ngx_command_t ngx_http_copy_filter_commands[] = { | |
19 | |
20 {ngx_string("output_buffers"), | |
21 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
22 ngx_conf_set_bufs_slot, | |
23 NGX_HTTP_LOC_CONF_OFFSET, | |
24 offsetof(ngx_http_copy_filter_conf_t, bufs), | |
25 NULL}, | |
26 | |
27 ngx_null_command | |
28 }; | |
29 | |
30 | |
31 static ngx_http_module_t ngx_http_copy_filter_module_ctx = { | |
32 NULL, /* pre conf */ | |
33 | |
34 NULL, /* create main configuration */ | |
35 NULL, /* init main configuration */ | |
36 | |
37 NULL, /* create server configuration */ | |
38 NULL, /* merge server configuration */ | |
39 | |
40 ngx_http_copy_filter_create_conf, /* create location configuration */ | |
41 ngx_http_copy_filter_merge_conf /* merge location configuration */ | |
42 }; | |
43 | |
44 | |
45 ngx_module_t ngx_http_copy_filter_module = { | |
46 NGX_MODULE, | |
47 &ngx_http_copy_filter_module_ctx, /* module context */ | |
48 ngx_http_copy_filter_commands, /* module directives */ | |
49 NGX_HTTP_MODULE, /* module type */ | |
50 ngx_http_copy_filter_init, /* init module */ | |
51 NULL /* init process */ | |
52 }; | |
53 | |
54 | |
55 static ngx_http_output_body_filter_pt ngx_http_next_filter; | |
56 | |
57 | |
58 ngx_int_t ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
59 { | |
60 ngx_output_chain_ctx_t *ctx; | |
61 ngx_http_copy_filter_conf_t *conf; | |
62 | |
63 if (r->connection->write->error) { | |
64 return NGX_ERROR; | |
65 } | |
66 | |
67 ctx = ngx_http_get_module_ctx(r->main ? r->main : r, | |
68 ngx_http_copy_filter_module); | |
69 | |
70 if (ctx == NULL) { | |
71 conf = ngx_http_get_module_loc_conf(r->main ? r->main : r, | |
72 ngx_http_copy_filter_module); | |
73 | |
74 ngx_http_create_ctx(r, ctx, ngx_http_copy_filter_module, | |
75 sizeof(ngx_output_chain_ctx_t), NGX_ERROR); | |
76 | |
77 ctx->sendfile = r->sendfile; | |
78 ctx->need_in_memory = r->filter & NGX_HTTP_FILTER_NEED_IN_MEMORY; | |
79 ctx->need_in_temp = r->filter & NGX_HTTP_FILTER_NEED_TEMP; | |
80 | |
81 ctx->pool = r->pool; | |
82 ctx->bufs = conf->bufs; | |
83 ctx->tag = (ngx_hunk_tag_t) &ngx_http_copy_filter_module; | |
84 | |
85 ctx->output_filter = (ngx_output_chain_filter_pt) ngx_http_next_filter; | |
86 ctx->filter_ctx = r; | |
87 | |
88 } | |
89 | |
90 return ngx_output_chain(ctx, in); | |
91 } | |
92 | |
93 | |
94 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf) | |
95 { | |
96 ngx_http_copy_filter_conf_t *conf; | |
97 | |
98 ngx_test_null(conf, | |
99 ngx_palloc(cf->pool, sizeof(ngx_http_copy_filter_conf_t)), | |
100 NULL); | |
101 | |
102 conf->bufs.num = 0; | |
103 | |
104 return conf; | |
105 } | |
106 | |
107 | |
108 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, | |
109 void *parent, void *child) | |
110 { | |
111 ngx_http_copy_filter_conf_t *prev = parent; | |
112 ngx_http_copy_filter_conf_t *conf = child; | |
113 | |
114 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 1, 32768); | |
115 | |
116 return NULL; | |
117 } | |
118 | |
119 | |
120 static ngx_int_t ngx_http_copy_filter_init(ngx_cycle_t *cycle) | |
121 { | |
122 ngx_http_next_filter = ngx_http_top_body_filter; | |
123 ngx_http_top_body_filter = ngx_http_copy_filter; | |
124 | |
125 return NGX_OK; | |
126 } | |
127 |