Mercurial > hg > nginx-vendor-1-0
comparison src/http/ngx_http_copy_filter.c @ 0:f0b350454894 NGINX_0_1_0
nginx 0.1.0
*) The first public version.
author | Igor Sysoev <http://sysoev.ru> |
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date | Mon, 04 Oct 2004 00:00:00 +0400 |
parents | |
children | cc9f381affaa |
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-1:000000000000 | 0:f0b350454894 |
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1 | |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 | |
12 typedef struct { | |
13 ngx_bufs_t bufs; | |
14 } ngx_http_copy_filter_conf_t; | |
15 | |
16 | |
17 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf); | |
18 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, | |
19 void *parent, void *child); | |
20 static ngx_int_t ngx_http_copy_filter_init(ngx_cycle_t *cycle); | |
21 | |
22 | |
23 static ngx_command_t ngx_http_copy_filter_commands[] = { | |
24 | |
25 {ngx_string("output_buffers"), | |
26 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
27 ngx_conf_set_bufs_slot, | |
28 NGX_HTTP_LOC_CONF_OFFSET, | |
29 offsetof(ngx_http_copy_filter_conf_t, bufs), | |
30 NULL}, | |
31 | |
32 ngx_null_command | |
33 }; | |
34 | |
35 | |
36 static ngx_http_module_t ngx_http_copy_filter_module_ctx = { | |
37 NULL, /* pre conf */ | |
38 | |
39 NULL, /* create main configuration */ | |
40 NULL, /* init main configuration */ | |
41 | |
42 NULL, /* create server configuration */ | |
43 NULL, /* merge server configuration */ | |
44 | |
45 ngx_http_copy_filter_create_conf, /* create location configuration */ | |
46 ngx_http_copy_filter_merge_conf /* merge location configuration */ | |
47 }; | |
48 | |
49 | |
50 ngx_module_t ngx_http_copy_filter_module = { | |
51 NGX_MODULE, | |
52 &ngx_http_copy_filter_module_ctx, /* module context */ | |
53 ngx_http_copy_filter_commands, /* module directives */ | |
54 NGX_HTTP_MODULE, /* module type */ | |
55 ngx_http_copy_filter_init, /* init module */ | |
56 NULL /* init process */ | |
57 }; | |
58 | |
59 | |
60 static ngx_http_output_body_filter_pt ngx_http_next_filter; | |
61 | |
62 | |
63 ngx_int_t ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
64 { | |
65 ngx_output_chain_ctx_t *ctx; | |
66 ngx_http_copy_filter_conf_t *conf; | |
67 | |
68 if (r->connection->write->error) { | |
69 return NGX_ERROR; | |
70 } | |
71 | |
72 ctx = ngx_http_get_module_ctx(r->main ? r->main : r, | |
73 ngx_http_copy_filter_module); | |
74 | |
75 if (ctx == NULL) { | |
76 conf = ngx_http_get_module_loc_conf(r->main ? r->main : r, | |
77 ngx_http_copy_filter_module); | |
78 | |
79 ngx_http_create_ctx(r, ctx, ngx_http_copy_filter_module, | |
80 sizeof(ngx_output_chain_ctx_t), NGX_ERROR); | |
81 | |
82 ctx->sendfile = r->sendfile; | |
83 ctx->need_in_memory = r->filter_need_in_memory; | |
84 ctx->need_in_temp = r->filter_need_temporary; | |
85 | |
86 ctx->pool = r->pool; | |
87 ctx->bufs = conf->bufs; | |
88 ctx->tag = (ngx_buf_tag_t) &ngx_http_copy_filter_module; | |
89 | |
90 ctx->output_filter = (ngx_output_chain_filter_pt) ngx_http_next_filter; | |
91 ctx->filter_ctx = r; | |
92 | |
93 } | |
94 | |
95 return ngx_output_chain(ctx, in); | |
96 } | |
97 | |
98 | |
99 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf) | |
100 { | |
101 ngx_http_copy_filter_conf_t *conf; | |
102 | |
103 ngx_test_null(conf, | |
104 ngx_palloc(cf->pool, sizeof(ngx_http_copy_filter_conf_t)), | |
105 NULL); | |
106 | |
107 conf->bufs.num = 0; | |
108 | |
109 return conf; | |
110 } | |
111 | |
112 | |
113 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, | |
114 void *parent, void *child) | |
115 { | |
116 ngx_http_copy_filter_conf_t *prev = parent; | |
117 ngx_http_copy_filter_conf_t *conf = child; | |
118 | |
119 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 1, 32768); | |
120 | |
121 return NULL; | |
122 } | |
123 | |
124 | |
125 static ngx_int_t ngx_http_copy_filter_init(ngx_cycle_t *cycle) | |
126 { | |
127 ngx_http_next_filter = ngx_http_top_body_filter; | |
128 ngx_http_top_body_filter = ngx_http_copy_filter; | |
129 | |
130 return NGX_OK; | |
131 } | |
132 |