Mercurial > hg > nginx
annotate src/http/ngx_http_request_body.c @ 583:4e296b7d25bf release-0.3.13
nginx-0.3.13-RELEASE import
*) Feature: the IMAP/POP3 proxy supports STARTTLS and STLS.
*) Bugfix: the IMAP/POP3 proxy did not work with the select, poll, and
/dev/poll methods.
*) Bugfix: in SSI handling.
*) Bugfix: now Solaris sendfilev() is not used to transfer the client
request body to FastCGI-server via the unix domain socket.
*) Bugfix: the "auth_basic" directive did not disable the
authorization; the bug had appeared in 0.3.11.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 05 Dec 2005 13:18:09 +0000 |
| parents | 4d9ea73a627a |
| children | f971949ffb58 |
| 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_event.h> |
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10 #include <ngx_http.h> |
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12 |
| 509 | 13 static void ngx_http_read_client_request_body_handler(ngx_http_request_t *r); |
| 14 static ngx_int_t ngx_http_do_read_client_request_body(ngx_http_request_t *r); | |
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15 |
| 479 | 16 /* |
| 17 * on completion ngx_http_read_client_request_body() adds to | |
| 18 * r->request_body->bufs one or two bufs: | |
| 19 * *) one memory buf that was preread in r->header_in; | |
| 20 * *) one memory or file buf that contains the rest of the body | |
| 21 */ | |
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22 |
| 501 | 23 ngx_int_t |
| 24 ngx_http_read_client_request_body(ngx_http_request_t *r, | |
| 25 ngx_http_client_body_handler_pt post_handler) | |
| 479 | 26 |
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27 { |
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28 ssize_t size; |
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29 ngx_buf_t *b; |
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30 ngx_chain_t *cl; |
| 479 | 31 ngx_http_request_body_t *rb; |
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32 ngx_http_core_loc_conf_t *clcf; |
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33 |
| 537 | 34 if (r->request_body || r->discard_body) { |
| 509 | 35 post_handler(r); |
| 36 return NGX_OK; | |
| 37 } | |
| 38 | |
| 501 | 39 rb = ngx_pcalloc(r->pool, sizeof(ngx_http_request_body_t)); |
| 40 if (rb == NULL) { | |
| 479 | 41 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 42 } | |
| 43 | |
| 44 r->request_body = rb; | |
| 45 | |
| 46 if (r->headers_in.content_length_n <= 0) { | |
| 47 post_handler(r); | |
| 48 return NGX_OK; | |
| 49 } | |
| 50 | |
| 51 rb->post_handler = post_handler; | |
| 52 | |
| 53 /* | |
| 54 * set by ngx_pcalloc(): | |
| 55 * | |
| 56 * rb->bufs = NULL; | |
| 57 * rb->buf = NULL; | |
| 58 * rb->rest = 0; | |
| 59 */ | |
| 60 | |
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61 size = r->header_in->last - r->header_in->pos; |
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62 |
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63 if (size) { |
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64 |
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65 /* there is the pre-read part of the request body */ |
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66 |
| 501 | 67 b = ngx_calloc_buf(r->pool); |
| 68 if (b == NULL) { | |
| 479 | 69 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 70 } | |
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71 |
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72 b->temporary = 1; |
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73 b->start = b->pos = r->header_in->pos; |
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74 b->end = b->last = r->header_in->last; |
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75 |
| 501 | 76 rb->bufs = ngx_alloc_chain_link(r->pool); |
| 77 if (rb->bufs == NULL) { | |
| 479 | 78 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 79 } | |
| 80 | |
| 81 rb->bufs->buf = b; | |
| 82 rb->bufs->next = NULL; | |
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83 |
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84 if (size >= r->headers_in.content_length_n) { |
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85 |
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86 /* the whole request body was pre-read */ |
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87 |
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88 r->header_in->pos += r->headers_in.content_length_n; |
| 475 | 89 r->request_length += r->headers_in.content_length_n; |
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90 |
| 479 | 91 post_handler(r); |
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92 |
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93 return NGX_OK; |
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94 } |
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95 |
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96 r->header_in->pos = r->header_in->last; |
| 475 | 97 r->request_length += size; |
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98 } |
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99 |
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100 |
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101 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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102 |
| 479 | 103 rb->rest = r->headers_in.content_length_n - size; |
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104 |
| 479 | 105 if (rb->rest < clcf->client_body_buffer_size |
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106 + (clcf->client_body_buffer_size >> 2)) |
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107 { |
| 479 | 108 size = rb->rest; |
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109 |
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110 } else { |
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111 size = clcf->client_body_buffer_size; |
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112 } |
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113 |
| 501 | 114 rb->buf = ngx_create_temp_buf(r->pool, size); |
| 115 if (rb->buf == NULL) { | |
| 479 | 116 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 117 } | |
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118 |
| 501 | 119 cl = ngx_alloc_chain_link(r->pool); |
| 120 if (cl == NULL) { | |
| 479 | 121 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 122 } | |
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123 |
| 479 | 124 cl->buf = rb->buf; |
| 125 cl->next = NULL; | |
| 126 | |
| 127 if (rb->bufs) { | |
| 128 rb->bufs->next = cl; | |
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129 |
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130 } else { |
| 479 | 131 rb->bufs = cl; |
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132 } |
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133 |
| 509 | 134 r->read_event_handler = ngx_http_read_client_request_body_handler; |
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135 |
| 509 | 136 return ngx_http_do_read_client_request_body(r); |
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137 } |
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138 |
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139 |
| 501 | 140 static void |
| 509 | 141 ngx_http_read_client_request_body_handler(ngx_http_request_t *r) |
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142 { |
| 509 | 143 ngx_int_t rc; |
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144 |
| 509 | 145 if (r->connection->read->timedout) { |
| 577 | 146 r->connection->timedout = 1; |
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147 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT); |
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148 return; |
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149 } |
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150 |
| 509 | 151 rc = ngx_http_do_read_client_request_body(r); |
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152 |
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153 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { |
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154 ngx_http_finalize_request(r, rc); |
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155 } |
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156 } |
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157 |
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158 |
| 501 | 159 static ngx_int_t |
| 509 | 160 ngx_http_do_read_client_request_body(ngx_http_request_t *r) |
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161 { |
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162 size_t size; |
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163 ssize_t n; |
|
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164 ngx_buf_t *b; |
| 479 | 165 ngx_temp_file_t *tf; |
| 509 | 166 ngx_connection_t *c; |
| 479 | 167 ngx_http_request_body_t *rb; |
|
162
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168 ngx_http_core_loc_conf_t *clcf; |
|
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169 |
| 509 | 170 c = r->connection; |
| 479 | 171 rb = r->request_body; |
|
82
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172 |
|
292
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173 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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174 "http read client request body"); |
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175 |
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176 for ( ;; ) { |
| 479 | 177 if (rb->buf->last == rb->buf->end) { |
| 178 | |
| 179 if (rb->temp_file == NULL) { | |
| 501 | 180 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t)); |
| 181 if (tf == NULL) { | |
| 479 | 182 return NGX_ERROR; |
| 183 } | |
| 184 | |
| 185 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 186 | |
| 187 tf->file.fd = NGX_INVALID_FILE; | |
| 188 tf->file.log = r->connection->log; | |
| 189 tf->path = clcf->client_body_temp_path; | |
| 190 tf->pool = r->pool; | |
| 191 tf->warn = "a client request body is buffered " | |
| 192 "to a temporary file"; | |
| 193 | |
| 194 rb->temp_file = tf; | |
| 195 | |
| 196 } | |
| 197 | |
| 198 n = ngx_write_chain_to_temp_file(rb->temp_file, | |
| 199 rb->bufs->next ? rb->bufs->next: | |
| 200 rb->bufs); | |
|
292
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201 |
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202 /* TODO: n == 0 or not complete and level event */ |
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203 |
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204 if (n == NGX_ERROR) { |
|
293
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205 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
292
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206 } |
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207 |
| 479 | 208 rb->temp_file->offset += n; |
| 209 rb->buf->last = rb->buf->start; | |
|
292
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210 } |
|
82
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211 |
| 479 | 212 size = rb->buf->end - rb->buf->last; |
|
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213 |
| 479 | 214 if (size > rb->rest) { |
| 215 size = rb->rest; | |
|
292
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216 } |
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217 |
| 479 | 218 n = c->recv(c, rb->buf->last, size); |
|
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219 |
|
293
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220 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 461 | 221 "http client request body recv %z", n); |
|
293
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222 |
|
292
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223 if (n == NGX_AGAIN) { |
| 573 | 224 break; |
|
162
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225 } |
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parents:
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226 |
|
292
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227 if (n == 0) { |
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228 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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229 "client closed prematurely connection"); |
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82
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230 } |
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231 |
|
292
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232 if (n == 0 || n == NGX_ERROR) { |
| 583 | 233 c->error = 1; |
|
293
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234 return NGX_HTTP_BAD_REQUEST; |
|
292
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235 } |
|
82
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236 |
| 479 | 237 rb->buf->last += n; |
| 238 rb->rest -= n; | |
| 475 | 239 r->request_length += n; |
|
292
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240 |
| 479 | 241 if (rb->rest == 0) { |
|
294
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parents:
293
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|
242 break; |
|
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293
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|
243 } |
|
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244 |
| 479 | 245 if (rb->buf->last < rb->buf->end) { |
|
292
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|
246 break; |
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|
247 } |
|
160
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|
248 } |
|
82
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|
249 |
|
293
ec3c049681fd
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250 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 479 | 251 "http client request body rest %uz", rb->rest); |
|
293
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252 |
| 479 | 253 if (rb->rest) { |
| 573 | 254 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
| 255 ngx_add_timer(c->read, clcf->client_body_timeout); | |
| 256 | |
| 257 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { | |
| 258 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 259 } | |
| 260 | |
|
293
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261 return NGX_AGAIN; |
|
82
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262 } |
|
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263 |
| 573 | 264 if (c->read->timer_set) { |
| 265 ngx_del_timer(c->read); | |
| 266 } | |
| 267 | |
| 479 | 268 if (rb->temp_file) { |
|
82
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269 |
|
160
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270 /* save the last part */ |
| 479 | 271 |
| 272 n = ngx_write_chain_to_temp_file(rb->temp_file, | |
| 273 rb->bufs->next ? rb->bufs->next: | |
| 274 rb->bufs); | |
|
292
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|
275 |
|
160
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|
276 /* TODO: n == 0 or not complete and level event */ |
|
82
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|
277 |
|
162
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parents:
160
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|
278 if (n == NGX_ERROR) { |
|
293
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279 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
162
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parents:
160
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|
280 } |
|
160
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281 |
| 501 | 282 b = ngx_calloc_buf(r->pool); |
| 283 if (b == NULL) { | |
|
293
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284 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
82
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285 } |
|
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286 |
|
343
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287 b->in_file = 1; |
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288 b->file_pos = 0; |
| 479 | 289 b->file_last = rb->temp_file->file.offset; |
| 290 b->file = &rb->temp_file->file; | |
|
160
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291 |
| 479 | 292 if (rb->bufs->next) { |
| 293 rb->bufs->next->buf = b; | |
|
160
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parents:
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changeset
|
294 |
|
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295 } else { |
| 479 | 296 rb->bufs->buf = b; |
|
160
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changeset
|
297 } |
|
82
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298 } |
|
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|
299 |
| 479 | 300 rb->post_handler(r); |
|
293
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|
301 |
|
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302 return NGX_OK; |
|
82
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303 } |