Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_chunked_filter_module.c @ 1934:cda99c3436d3
release-0.6.28 tag
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 13 Mar 2008 06:10:33 +0000 |
parents | 7e24168b0853 |
children | e274c8e5d49c |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 |
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11 |
681 | 12 static ngx_int_t ngx_http_chunked_filter_init(ngx_conf_t *cf); |
99
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13 |
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15 static ngx_http_module_t ngx_http_chunked_filter_module_ctx = { |
509 | 16 NULL, /* preconfiguration */ |
681 | 17 ngx_http_chunked_filter_init, /* postconfiguration */ |
177
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18 |
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19 NULL, /* create main configuration */ |
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20 NULL, /* init main configuration */ |
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21 |
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22 NULL, /* create server configuration */ |
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23 NULL, /* merge server configuration */ |
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24 |
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25 NULL, /* create location configuration */ |
629 | 26 NULL /* merge location configuration */ |
99
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27 }; |
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28 |
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29 |
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30 ngx_module_t ngx_http_chunked_filter_module = { |
509 | 31 NGX_MODULE_V1, |
99
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32 &ngx_http_chunked_filter_module_ctx, /* module context */ |
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33 NULL, /* module directives */ |
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34 NGX_HTTP_MODULE, /* module type */ |
541 | 35 NULL, /* init master */ |
681 | 36 NULL, /* init module */ |
541 | 37 NULL, /* init process */ |
38 NULL, /* init thread */ | |
39 NULL, /* exit thread */ | |
40 NULL, /* exit process */ | |
41 NULL, /* exit master */ | |
42 NGX_MODULE_V1_PADDING | |
99
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43 }; |
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44 |
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45 |
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46 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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47 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
99
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48 |
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49 |
501 | 50 static ngx_int_t |
51 ngx_http_chunked_header_filter(ngx_http_request_t *r) | |
99
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52 { |
615 | 53 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED |
54 || r->headers_out.status == NGX_HTTP_NO_CONTENT | |
633 | 55 || r->headers_out.status == NGX_HTTP_CREATED |
615 | 56 || r != r->main) |
57 { | |
155
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58 return ngx_http_next_header_filter(r); |
135
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59 } |
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60 |
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61 if (r->headers_out.content_length_n == -1) { |
99
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62 if (r->http_version < NGX_HTTP_VERSION_11) { |
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63 r->keepalive = 0; |
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64 |
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65 } else { |
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66 r->chunked = 1; |
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67 } |
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68 } |
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69 |
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70 return ngx_http_next_header_filter(r); |
99
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71 } |
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72 |
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73 |
501 | 74 static ngx_int_t |
75 ngx_http_chunked_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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76 { |
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77 u_char *chunk; |
473 | 78 off_t size; |
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79 ngx_buf_t *b; |
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80 ngx_chain_t out, tail, *cl, *tl, **ll; |
99
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81 |
483 | 82 if (in == NULL || !r->chunked || r->header_only) { |
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83 return ngx_http_next_body_filter(r, in); |
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84 } |
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85 |
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86 out.buf = NULL; |
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87 ll = &out.next; |
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88 |
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89 size = 0; |
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90 cl = in; |
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91 |
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92 for ( ;; ) { |
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93 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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94 "http chunk: %d", ngx_buf_size(cl->buf)); |
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95 |
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96 size += ngx_buf_size(cl->buf); |
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97 |
667 | 98 if (cl->buf->flush |
99 || cl->buf->sync | |
100 || ngx_buf_in_memory(cl->buf) | |
101 || cl->buf->in_file) | |
102 { | |
501 | 103 tl = ngx_alloc_chain_link(r->pool); |
104 if (tl == NULL) { | |
461 | 105 return NGX_ERROR; |
106 } | |
107 | |
452 | 108 tl->buf = cl->buf; |
109 *ll = tl; | |
110 ll = &tl->next; | |
111 } | |
99
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112 |
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113 if (cl->next == NULL) { |
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114 break; |
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115 } |
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116 |
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117 cl = cl->next; |
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118 } |
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119 |
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120 if (size) { |
501 | 121 b = ngx_calloc_buf(r->pool); |
122 if (b == NULL) { | |
455 | 123 return NGX_ERROR; |
124 } | |
125 | |
501 | 126 /* the "0000000000000000" is 64-bit hexadimal string */ |
127 | |
473 | 128 chunk = ngx_palloc(r->pool, sizeof("0000000000000000" CRLF) - 1); |
129 if (chunk == NULL) { | |
455 | 130 return NGX_ERROR; |
131 } | |
132 | |
133 b->temporary = 1; | |
134 b->pos = chunk; | |
473 | 135 b->last = ngx_sprintf(chunk, "%xO" CRLF, size); |
455 | 136 |
137 out.buf = b; | |
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138 } |
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139 |
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140 if (cl->buf->last_buf) { |
501 | 141 b = ngx_calloc_buf(r->pool); |
142 if (b == NULL) { | |
461 | 143 return NGX_ERROR; |
144 } | |
145 | |
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146 b->memory = 1; |
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147 b->last_buf = 1; |
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148 b->pos = (u_char *) CRLF "0" CRLF CRLF; |
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149 b->last = b->pos + 7; |
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150 |
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151 cl->buf->last_buf = 0; |
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152 |
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
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153 if (size == 0) { |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
337
diff
changeset
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154 b->pos += 2; |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
337
diff
changeset
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155 out.buf = b; |
337
4feff829a849
nginx-0.0.3-2004-05-19-00:28:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
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156 out.next = NULL; |
336
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
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157 |
337
4feff829a849
nginx-0.0.3-2004-05-19-00:28:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
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158 return ngx_http_next_body_filter(r, &out); |
336
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
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159 } |
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
160 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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161 } else { |
336
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
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162 if (size == 0) { |
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
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163 *ll = NULL; |
337
4feff829a849
nginx-0.0.3-2004-05-19-00:28:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
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164 return ngx_http_next_body_filter(r, out.next); |
336
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
165 } |
ca9a7f8c86da
nginx-0.0.3-2004-05-18-19:29:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
292
diff
changeset
|
166 |
501 | 167 b = ngx_calloc_buf(r->pool); |
168 if (b == NULL) { | |
461 | 169 return NGX_ERROR; |
170 } | |
171 | |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
337
diff
changeset
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172 b->memory = 1; |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
337
diff
changeset
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173 b->pos = (u_char *) CRLF; |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
337
diff
changeset
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174 b->last = b->pos + 2; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
337
diff
changeset
|
177 tail.buf = b; |
337
4feff829a849
nginx-0.0.3-2004-05-19-00:28:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
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178 tail.next = NULL; |
4feff829a849
nginx-0.0.3-2004-05-19-00:28:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
|
179 *ll = &tail; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
180 |
337
4feff829a849
nginx-0.0.3-2004-05-19-00:28:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
|
181 return ngx_http_next_body_filter(r, &out); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
182 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
184 |
501 | 185 static ngx_int_t |
681 | 186 ngx_http_chunked_filter_init(ngx_conf_t *cf) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
188 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 ngx_http_top_header_filter = ngx_http_chunked_header_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
191 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
192 ngx_http_top_body_filter = ngx_http_chunked_body_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
194 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 } |