Mercurial > hg > nginx
annotate src/http/modules/ngx_http_chunked_filter_module.c @ 509:9b8c906f6e63 release-0.1.29
nginx-0.1.29-RELEASE import
*) Feature: the ngx_http_ssi_module supports "include virtual" command.
*) Feature: the ngx_http_ssi_module supports the condition command like
'if expr="$NAME"' and "else" and "endif" commands. Only one nested
level is supported.
*) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and
DATE_GMT variables and "config timefmt" command.
*) Feature: the "ssi_ignore_recycled_buffers" directive.
*) Bugfix: the "echo" command did not show the default value for the
empty QUERY_STRING variable.
*) Change: the ngx_http_proxy_module was rewritten.
*) Feature: the "proxy_redirect", "proxy_pass_request_headers",
"proxy_pass_request_body", and "proxy_method" directives.
*) Feature: the "proxy_set_header" directive. The "proxy_x_var" was
canceled and must be replaced with the proxy_set_header directive.
*) Change: the "proxy_preserve_host" is canceled and must be replaced
with the "proxy_set_header Host $host" and the "proxy_redirect off"
directives, the "proxy_set_header Host $host:$proxy_port" directive
and the appropriate proxy_redirect directives.
*) Change: the "proxy_set_x_real_ip" is canceled and must be replaced
with the "proxy_set_header X-Real-IP $remote_addr" directive.
*) Change: the "proxy_add_x_forwarded_for" is canceled and must be
replaced with
the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for"
directive.
*) Change: the "proxy_set_x_url" is canceled and must be replaced with
the "proxy_set_header X-URL http://$host:$server_port$request_uri"
directive.
*) Feature: the "fastcgi_param" directive.
*) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params"
directive are canceled and must be replaced with the fastcgi_param
directives.
*) Feature: the "index" directive can use the variables.
*) Feature: the "index" directive can be used at http and server levels.
*) Change: the last index only in the "index" directive can be absolute.
*) Feature: the "rewrite" directive can use the variables.
*) Feature: the "internal" directive.
*) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR,
SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME,
REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables.
*) Change: nginx now passes the invalid lines in a client request
headers or a backend response header.
*) Bugfix: if the backend did not transfer response for a long time and
the "send_timeout" was less than "proxy_read_timeout", then nginx
returned the 408 response.
*) Bugfix: the segmentation fault was occurred if the backend sent an
invalid line in response header; the bug had appeared in 0.1.26.
*) Bugfix: the segmentation fault may occurred in FastCGI fault
tolerance configuration.
*) Bugfix: the "expires" directive did not remove the previous
"Expires" and "Cache-Control" headers.
*) Bugfix: nginx did not take into account trailing dot in "Host"
header line.
*) Bugfix: the ngx_http_auth_module did not work under Linux.
*) Bugfix: the rewrite directive worked incorrectly, if the arguments
were in a request.
*) Bugfix: nginx could not be built on MacOS X.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 12 May 2005 14:58:06 +0000 |
parents | d4ea69372b94 |
children | b09ee85d0ac8 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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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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12 static ngx_int_t ngx_http_chunked_filter_init(ngx_cycle_t *cycle); |
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15 static ngx_http_module_t ngx_http_chunked_filter_module_ctx = { |
509 | 16 NULL, /* preconfiguration */ |
17 NULL, /* postconfiguration */ | |
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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 */ |
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26 NULL, /* merge location configuration */ |
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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, |
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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 */ |
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35 ngx_http_chunked_filter_init, /* init module */ |
461 | 36 NULL /* init process */ |
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37 }; |
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38 |
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39 |
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40 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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41 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
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42 |
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43 |
501 | 44 static ngx_int_t |
45 ngx_http_chunked_header_filter(ngx_http_request_t *r) | |
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46 { |
509 | 47 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED || r->main) { |
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48 return ngx_http_next_header_filter(r); |
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49 } |
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50 |
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51 if (r->headers_out.content_length_n == -1) { |
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52 if (r->http_version < NGX_HTTP_VERSION_11) { |
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53 r->keepalive = 0; |
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54 |
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55 } else { |
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56 r->chunked = 1; |
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57 } |
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58 } |
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59 |
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60 return ngx_http_next_header_filter(r); |
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61 } |
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62 |
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63 |
501 | 64 static ngx_int_t |
65 ngx_http_chunked_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
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66 { |
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67 u_char *chunk; |
473 | 68 off_t size; |
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69 ngx_buf_t *b; |
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70 ngx_chain_t out, tail, *cl, *tl, **ll; |
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71 |
483 | 72 if (in == NULL || !r->chunked || r->header_only) { |
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73 return ngx_http_next_body_filter(r, in); |
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74 } |
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75 |
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76 out.buf = NULL; |
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77 ll = &out.next; |
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78 |
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79 size = 0; |
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80 cl = in; |
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81 |
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82 for ( ;; ) { |
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83 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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84 "http chunk: %d", ngx_buf_size(cl->buf)); |
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85 |
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86 size += ngx_buf_size(cl->buf); |
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87 |
452 | 88 if (cl->buf->flush || ngx_buf_in_memory(cl->buf) || cl->buf->in_file) { |
461 | 89 |
501 | 90 tl = ngx_alloc_chain_link(r->pool); |
91 if (tl == NULL) { | |
461 | 92 return NGX_ERROR; |
93 } | |
94 | |
452 | 95 tl->buf = cl->buf; |
96 *ll = tl; | |
97 ll = &tl->next; | |
98 } | |
99
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99 |
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100 if (cl->next == NULL) { |
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101 break; |
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102 } |
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103 |
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104 cl = cl->next; |
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105 } |
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106 |
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107 if (size) { |
501 | 108 b = ngx_calloc_buf(r->pool); |
109 if (b == NULL) { | |
455 | 110 return NGX_ERROR; |
111 } | |
112 | |
501 | 113 /* the "0000000000000000" is 64-bit hexadimal string */ |
114 | |
473 | 115 chunk = ngx_palloc(r->pool, sizeof("0000000000000000" CRLF) - 1); |
116 if (chunk == NULL) { | |
455 | 117 return NGX_ERROR; |
118 } | |
119 | |
120 b->temporary = 1; | |
121 b->pos = chunk; | |
473 | 122 b->last = ngx_sprintf(chunk, "%xO" CRLF, size); |
455 | 123 |
124 out.buf = b; | |
336
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125 } |
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126 |
343
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127 if (cl->buf->last_buf) { |
501 | 128 b = ngx_calloc_buf(r->pool); |
129 if (b == NULL) { | |
461 | 130 return NGX_ERROR; |
131 } | |
132 | |
343
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133 b->memory = 1; |
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134 b->last_buf = 1; |
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135 b->pos = (u_char *) CRLF "0" CRLF CRLF; |
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136 b->last = b->pos + 7; |
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137 |
343
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138 cl->buf->last_buf = 0; |
336
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139 |
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140 if (size == 0) { |
343
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141 b->pos += 2; |
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142 out.buf = b; |
337
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143 out.next = NULL; |
336
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144 |
337
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145 return ngx_http_next_body_filter(r, &out); |
336
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146 } |
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147 |
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148 } else { |
336
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149 if (size == 0) { |
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150 *ll = NULL; |
337
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151 return ngx_http_next_body_filter(r, out.next); |
336
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152 } |
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153 |
501 | 154 b = ngx_calloc_buf(r->pool); |
155 if (b == NULL) { | |
461 | 156 return NGX_ERROR; |
157 } | |
158 | |
343
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159 b->memory = 1; |
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160 b->pos = (u_char *) CRLF; |
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161 b->last = b->pos + 2; |
99
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162 } |
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163 |
343
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164 tail.buf = b; |
337
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165 tail.next = NULL; |
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166 *ll = &tail; |
99
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167 |
337
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168 return ngx_http_next_body_filter(r, &out); |
99
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169 } |
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parents:
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170 |
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171 |
501 | 172 static ngx_int_t |
173 ngx_http_chunked_filter_init(ngx_cycle_t *cycle) | |
99
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174 { |
155
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175 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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176 ngx_http_top_header_filter = ngx_http_chunked_header_filter; |
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177 |
155
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178 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
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179 ngx_http_top_body_filter = ngx_http_chunked_body_filter; |
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parents:
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180 |
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181 return NGX_OK; |
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182 } |