Mercurial > hg > nginx-vendor-1-0
comparison src/http/modules/ngx_http_addition_filter_module.c @ 178:87699398f955 NGINX_0_3_36
nginx 0.3.36
*) Feature: the ngx_http_addition_filter_module.
*) Feature: the "proxy_pass" and "fastcgi_pass" directives may be used
inside the "if" block.
*) Feature: the "proxy_ignore_client_abort" and
"fastcgi_ignore_client_abort" directives.
*) Feature: the "$request_completion" variable.
*) Feature: the ngx_http_perl_module supports the $r->request_method
and $r->remote_addr.
*) Feature: the ngx_http_ssi_module supports the "elif" command.
*) Bugfix: the "\/" string in the expression of the "if" command of the
ngx_http_ssi_module was treated incorrectly.
*) Bugfix: in the regular expressions in the "if" command of the
ngx_http_ssi_module.
*) Bugfix: if the relative path was specified in the
"client_body_temp_path", "proxy_temp_path", "fastcgi_temp_path", and
"perl_modules" directives, then the directory was used relatively to
a current path but not to a server prefix.
author | Igor Sysoev <http://sysoev.ru> |
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date | Wed, 05 Apr 2006 00:00:00 +0400 |
parents | |
children | 4cd3e70c4d60 |
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177:4a3ddd758222 | 178:87699398f955 |
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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_str_t before_body; | |
14 ngx_str_t after_body; | |
15 } ngx_http_addition_conf_t; | |
16 | |
17 | |
18 typedef struct { | |
19 unsigned before_body_sent:1; | |
20 unsigned after_body_sent:1; | |
21 } ngx_http_addition_ctx_t; | |
22 | |
23 | |
24 static ngx_int_t ngx_http_addition_filter_init(ngx_cycle_t *cycle); | |
25 static void *ngx_http_addition_create_conf(ngx_conf_t *cf); | |
26 static char *ngx_http_addition_merge_conf(ngx_conf_t *cf, void *parent, | |
27 void *child); | |
28 | |
29 | |
30 static ngx_command_t ngx_http_addition_commands[] = { | |
31 | |
32 { ngx_string("add_before_body"), | |
33 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
34 ngx_conf_set_str_slot, | |
35 NGX_HTTP_LOC_CONF_OFFSET, | |
36 offsetof(ngx_http_addition_conf_t, before_body), | |
37 NULL }, | |
38 | |
39 { ngx_string("add_after_body"), | |
40 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
41 ngx_conf_set_str_slot, | |
42 NGX_HTTP_LOC_CONF_OFFSET, | |
43 offsetof(ngx_http_addition_conf_t, after_body), | |
44 NULL }, | |
45 | |
46 ngx_null_command | |
47 }; | |
48 | |
49 | |
50 static ngx_http_module_t ngx_http_addition_filter_module_ctx = { | |
51 NULL, /* preconfiguration */ | |
52 NULL, /* postconfiguration */ | |
53 | |
54 NULL, /* create main configuration */ | |
55 NULL, /* init main configuration */ | |
56 | |
57 NULL, /* create server configuration */ | |
58 NULL, /* merge server configuration */ | |
59 | |
60 ngx_http_addition_create_conf, /* create location configuration */ | |
61 ngx_http_addition_merge_conf /* merge location configuration */ | |
62 }; | |
63 | |
64 | |
65 ngx_module_t ngx_http_addition_filter_module = { | |
66 NGX_MODULE_V1, | |
67 &ngx_http_addition_filter_module_ctx, /* module context */ | |
68 ngx_http_addition_commands, /* module directives */ | |
69 NGX_HTTP_MODULE, /* module type */ | |
70 NULL, /* init master */ | |
71 ngx_http_addition_filter_init, /* init module */ | |
72 NULL, /* init process */ | |
73 NULL, /* init thread */ | |
74 NULL, /* exit thread */ | |
75 NULL, /* exit process */ | |
76 NULL, /* exit master */ | |
77 NGX_MODULE_V1_PADDING | |
78 }; | |
79 | |
80 | |
81 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
82 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; | |
83 | |
84 | |
85 static ngx_int_t | |
86 ngx_http_addition_header_filter(ngx_http_request_t *r) | |
87 { | |
88 ngx_http_addition_ctx_t *ctx; | |
89 ngx_http_addition_conf_t *conf; | |
90 | |
91 if (r->headers_out.status != NGX_HTTP_OK || r != r->main) { | |
92 return ngx_http_next_header_filter(r); | |
93 } | |
94 | |
95 if (ngx_strncasecmp(r->headers_out.content_type.data, "text/html", | |
96 sizeof("text/html") - 1) | |
97 != 0) | |
98 { | |
99 return ngx_http_next_header_filter(r); | |
100 } | |
101 | |
102 conf = ngx_http_get_module_loc_conf(r, ngx_http_addition_filter_module); | |
103 | |
104 if (conf->before_body.len == 0 && conf->after_body.len == 0) { | |
105 return ngx_http_next_header_filter(r); | |
106 } | |
107 | |
108 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_addition_ctx_t)); | |
109 if (ctx == NULL) { | |
110 return NGX_ERROR; | |
111 } | |
112 | |
113 ngx_http_set_ctx(r, ctx, ngx_http_addition_filter_module); | |
114 | |
115 ngx_http_clear_content_length(r); | |
116 ngx_http_clear_accept_ranges(r); | |
117 | |
118 return ngx_http_next_header_filter(r); | |
119 } | |
120 | |
121 | |
122 static ngx_int_t | |
123 ngx_http_addition_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
124 { | |
125 ngx_int_t rc; | |
126 ngx_uint_t last; | |
127 ngx_chain_t *cl; | |
128 ngx_http_addition_ctx_t *ctx; | |
129 ngx_http_addition_conf_t *conf; | |
130 | |
131 if (in == NULL || r->header_only) { | |
132 return ngx_http_next_body_filter(r, in); | |
133 } | |
134 | |
135 ctx = ngx_http_get_module_ctx(r, ngx_http_addition_filter_module); | |
136 | |
137 if (ctx == NULL) { | |
138 return ngx_http_next_body_filter(r, in); | |
139 } | |
140 | |
141 conf = ngx_http_get_module_loc_conf(r, ngx_http_addition_filter_module); | |
142 | |
143 if (!ctx->before_body_sent) { | |
144 ctx->before_body_sent = 1; | |
145 | |
146 if (conf->before_body.len) { | |
147 if (ngx_http_subrequest(r, &conf->before_body, NULL, 0) != NGX_OK) { | |
148 return NGX_ERROR; | |
149 } | |
150 } | |
151 } | |
152 | |
153 last = 0; | |
154 | |
155 for (cl = in; cl; cl = cl->next) { | |
156 if (cl->buf->last_buf) { | |
157 cl->buf->last_buf = 0; | |
158 last = 1; | |
159 } | |
160 } | |
161 | |
162 rc = ngx_http_next_body_filter(r, in); | |
163 | |
164 if (rc == NGX_ERROR | |
165 || !last | |
166 || ctx->after_body_sent | |
167 || conf->after_body.len == 0) | |
168 { | |
169 return rc; | |
170 } | |
171 | |
172 if (ngx_http_subrequest(r, &conf->after_body, NULL, 0) != NGX_OK) { | |
173 return NGX_ERROR; | |
174 } | |
175 | |
176 ctx->after_body_sent = 1; | |
177 | |
178 return ngx_http_send_special(r, NGX_HTTP_LAST); | |
179 } | |
180 | |
181 | |
182 static ngx_int_t | |
183 ngx_http_addition_filter_init(ngx_cycle_t *cycle) | |
184 { | |
185 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
186 ngx_http_top_header_filter = ngx_http_addition_header_filter; | |
187 | |
188 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
189 ngx_http_top_body_filter = ngx_http_addition_body_filter; | |
190 | |
191 return NGX_OK; | |
192 } | |
193 | |
194 | |
195 static void * | |
196 ngx_http_addition_create_conf(ngx_conf_t *cf) | |
197 { | |
198 ngx_http_addition_conf_t *conf; | |
199 | |
200 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_addition_conf_t)); | |
201 if (conf == NULL) { | |
202 return NGX_CONF_ERROR; | |
203 } | |
204 | |
205 /* | |
206 * set by ngx_pcalloc(): | |
207 * | |
208 * conf->before_body.len = 0; | |
209 * conf->before_body.date = NULL; | |
210 * conf->after_body.len = 0; | |
211 * conf->after_body.date = NULL; | |
212 */ | |
213 | |
214 return conf; | |
215 } | |
216 | |
217 | |
218 static char * | |
219 ngx_http_addition_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
220 { | |
221 ngx_http_addition_conf_t *prev = parent; | |
222 ngx_http_addition_conf_t *conf = child; | |
223 | |
224 ngx_conf_merge_str_value(conf->before_body, prev->before_body, ""); | |
225 ngx_conf_merge_str_value(conf->after_body, prev->after_body, ""); | |
226 | |
227 return NGX_CONF_OK; | |
228 } |