Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 3440:88741ec7731a stable-0.7
merge r3294, r3305:
Fix a bug introduced in r2032: After a child process has read a terminate
message from a channel, the process tries to read the channel again.
The kernel (at least FreeBSD) may preempt the process and sends a SIGIO
signal to a master process. The master process sends a new terminate message,
the kernel switches again to the the child process, and the child process
reads the messages instead of an EAGAIN error. And this may repeat over
and over. Being that the child process can not exit the cycle and test
the termination flag set by the message handler.
The fix disallow the master process to send a new terminate message on
SIGIO signal reception. It may send the message only on SIGALARM signal.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 01 Feb 2010 15:49:36 +0000 |
parents | 896db5a09bd2 |
children | 616da2ea901f |
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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5 |
99
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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 |
160
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12 /* |
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13 * the single part format: |
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14 * |
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15 * "HTTP/1.0 206 Partial Content" CRLF |
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16 * ... header ... |
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17 * "Content-Type: image/jpeg" CRLF |
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18 * "Content-Length: SIZE" CRLF |
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19 * "Content-Range: bytes START-END/SIZE" CRLF |
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20 * CRLF |
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21 * ... data ... |
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22 * |
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23 * |
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24 * the mutlipart format: |
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25 * |
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26 * "HTTP/1.0 206 Partial Content" CRLF |
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27 * ... header ... |
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28 * "Content-Type: multipart/byteranges; boundary=0123456789" CRLF |
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29 * CRLF |
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30 * CRLF |
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31 * "--0123456789" CRLF |
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32 * "Content-Type: image/jpeg" CRLF |
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33 * "Content-Range: bytes START0-END0/SIZE" CRLF |
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34 * CRLF |
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35 * ... data ... |
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36 * CRLF |
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37 * "--0123456789" CRLF |
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38 * "Content-Type: image/jpeg" CRLF |
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39 * "Content-Range: bytes START1-END1/SIZE" CRLF |
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40 * CRLF |
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41 * ... data ... |
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42 * CRLF |
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43 * "--0123456789--" CRLF |
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44 */ |
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45 |
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46 |
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47 typedef struct { |
963
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48 off_t start; |
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49 off_t end; |
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50 ngx_str_t content_range; |
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51 } ngx_http_range_t; |
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52 |
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53 |
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54 typedef struct { |
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55 off_t offset; |
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56 ngx_str_t boundary_header; |
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57 ngx_array_t ranges; |
99
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58 } ngx_http_range_filter_ctx_t; |
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59 |
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60 |
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61 ngx_int_t ngx_http_range_parse(ngx_http_request_t *r, |
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62 ngx_http_range_filter_ctx_t *ctx); |
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63 static ngx_int_t ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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64 ngx_http_range_filter_ctx_t *ctx); |
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65 static ngx_int_t ngx_http_range_multipart_header(ngx_http_request_t *r, |
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66 ngx_http_range_filter_ctx_t *ctx); |
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67 static ngx_int_t ngx_http_range_not_satisfiable(ngx_http_request_t *r); |
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68 static ngx_int_t ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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69 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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70 static ngx_int_t ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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71 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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72 static ngx_int_t ngx_http_range_multipart_body(ngx_http_request_t *r, |
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73 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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74 |
681 | 75 static ngx_int_t ngx_http_range_header_filter_init(ngx_conf_t *cf); |
76 static ngx_int_t ngx_http_range_body_filter_init(ngx_conf_t *cf); | |
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77 |
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78 |
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79 static ngx_http_module_t ngx_http_range_header_filter_module_ctx = { |
509 | 80 NULL, /* preconfiguration */ |
681 | 81 ngx_http_range_header_filter_init, /* postconfiguration */ |
177
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82 |
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83 NULL, /* create main configuration */ |
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84 NULL, /* init main configuration */ |
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85 |
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86 NULL, /* create server configuration */ |
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87 NULL, /* merge server configuration */ |
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88 |
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89 NULL, /* create location configuration */ |
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90 NULL, /* merge location configuration */ |
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91 }; |
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92 |
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93 |
334
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94 ngx_module_t ngx_http_range_header_filter_module = { |
509 | 95 NGX_MODULE_V1, |
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96 &ngx_http_range_header_filter_module_ctx, /* module context */ |
99
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97 NULL, /* module directives */ |
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98 NGX_HTTP_MODULE, /* module type */ |
541 | 99 NULL, /* init master */ |
681 | 100 NULL, /* init module */ |
541 | 101 NULL, /* init process */ |
102 NULL, /* init thread */ | |
103 NULL, /* exit thread */ | |
104 NULL, /* exit process */ | |
105 NULL, /* exit master */ | |
106 NGX_MODULE_V1_PADDING | |
334
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107 }; |
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108 |
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109 |
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110 static ngx_http_module_t ngx_http_range_body_filter_module_ctx = { |
509 | 111 NULL, /* preconfiguration */ |
681 | 112 ngx_http_range_body_filter_init, /* postconfiguration */ |
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113 |
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114 NULL, /* create main configuration */ |
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115 NULL, /* init main configuration */ |
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116 |
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314
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117 NULL, /* create server configuration */ |
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314
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118 NULL, /* merge server configuration */ |
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314
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119 |
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120 NULL, /* create location configuration */ |
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314
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121 NULL, /* merge location configuration */ |
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122 }; |
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123 |
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124 |
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125 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 126 NGX_MODULE_V1, |
334
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127 &ngx_http_range_body_filter_module_ctx, /* module context */ |
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128 NULL, /* module directives */ |
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129 NGX_HTTP_MODULE, /* module type */ |
541 | 130 NULL, /* init master */ |
681 | 131 NULL, /* init module */ |
541 | 132 NULL, /* init process */ |
133 NULL, /* init thread */ | |
134 NULL, /* exit thread */ | |
135 NULL, /* exit process */ | |
136 NULL, /* exit master */ | |
137 NGX_MODULE_V1_PADDING | |
99
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138 }; |
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139 |
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140 |
155
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153
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141 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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153
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142 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
99
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143 |
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144 |
493 | 145 static ngx_int_t |
146 ngx_http_range_header_filter(ngx_http_request_t *r) | |
99
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147 { |
1630 | 148 time_t if_range; |
461 | 149 ngx_int_t rc; |
99
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150 ngx_http_range_filter_ctx_t *ctx; |
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151 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
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155
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152 if (r->http_version < NGX_HTTP_VERSION_10 |
99
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153 || r->headers_out.status != NGX_HTTP_OK |
597 | 154 || r != r->main |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
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136
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155 || r->headers_out.content_length_n == -1 |
581 | 156 || !r->allow_ranges) |
117
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113
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|
157 { |
155
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158 return ngx_http_next_header_filter(r); |
117
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113
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159 } |
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113
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160 |
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161 if (r->headers_in.range == NULL |
99
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162 || r->headers_in.range->value.len < 7 |
1107
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163 || ngx_strncasecmp(r->headers_in.range->value.data, |
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|
164 (u_char *) "bytes=", 6) |
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165 != 0) |
99
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|
166 { |
1630 | 167 goto next_filter; |
168 } | |
169 | |
170 if (r->headers_in.if_range && r->headers_out.last_modified_time != -1) { | |
171 | |
172 if_range = ngx_http_parse_time(r->headers_in.if_range->value.data, | |
173 r->headers_in.if_range->value.len); | |
117
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|
174 |
1630 | 175 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
176 "http ir:%d lm:%d", | |
177 if_range, r->headers_out.last_modified_time); | |
117
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178 |
1630 | 179 if (if_range != r->headers_out.last_modified_time) { |
180 goto next_filter; | |
181 } | |
99
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182 } |
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183 |
963
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184 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
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185 if (ctx == NULL) { |
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186 return NGX_ERROR; |
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187 } |
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188 |
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189 if (ngx_array_init(&ctx->ranges, r->pool, 1, sizeof(ngx_http_range_t)) |
2536
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small optimization: " == NGX_ERROR" > " != NGX_OK"
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|
190 != NGX_OK) |
461 | 191 { |
192 return NGX_ERROR; | |
193 } | |
99
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194 |
2118
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195 rc = ngx_http_range_parse(r, ctx); |
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196 |
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197 if (rc == NGX_OK) { |
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198 |
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199 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
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200 |
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201 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
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|
202 r->headers_out.status_line.len = 0; |
2118
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203 |
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204 if (ctx->ranges.nelts == 1) { |
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205 return ngx_http_range_singlepart_header(r, ctx); |
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206 } |
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|
207 |
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208 return ngx_http_range_multipart_header(r, ctx); |
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209 } |
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210 |
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211 if (rc == NGX_HTTP_RANGE_NOT_SATISFIABLE) { |
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212 return ngx_http_range_not_satisfiable(r); |
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213 } |
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|
214 |
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215 /* rc == NGX_ERROR */ |
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216 |
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217 return rc; |
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|
218 |
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219 next_filter: |
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220 |
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221 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
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222 if (r->headers_out.accept_ranges == NULL) { |
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223 return NGX_ERROR; |
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224 } |
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225 |
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226 r->headers_out.accept_ranges->hash = 1; |
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227 r->headers_out.accept_ranges->key.len = sizeof("Accept-Ranges") - 1; |
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228 r->headers_out.accept_ranges->key.data = (u_char *) "Accept-Ranges"; |
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229 r->headers_out.accept_ranges->value.len = sizeof("bytes") - 1; |
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230 r->headers_out.accept_ranges->value.data = (u_char *) "bytes"; |
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231 |
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232 return ngx_http_next_header_filter(r); |
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233 } |
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|
234 |
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235 |
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236 ngx_int_t |
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237 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx) |
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238 { |
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|
239 u_char *p; |
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240 off_t start, end; |
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|
241 ngx_uint_t suffix; |
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|
242 ngx_http_range_t *range; |
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|
243 |
99
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|
244 p = r->headers_in.range->value.data + 6; |
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|
245 |
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|
246 for ( ;; ) { |
231
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nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
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|
247 start = 0; |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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248 end = 0; |
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parents:
195
diff
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|
249 suffix = 0; |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
250 |
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parents:
diff
changeset
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251 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
252 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
253 if (*p != '-') { |
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Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
254 if (*p < '0' || *p > '9') { |
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255 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
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nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
256 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
257 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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258 while (*p >= '0' && *p <= '9') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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259 start = start * 10 + *p++ - '0'; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
260 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
261 |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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|
262 while (*p == ' ') { p++; } |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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|
263 |
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nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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264 if (*p++ != '-') { |
2118
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265 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
266 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
267 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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268 if (start >= r->headers_out.content_length_n) { |
2118
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269 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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270 } |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
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|
271 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
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272 while (*p == ' ') { p++; } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
273 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
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274 if (*p == ',' || *p == '\0') { |
963
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275 range = ngx_array_push(&ctx->ranges); |
501 | 276 if (range == NULL) { |
461 | 277 return NGX_ERROR; |
278 } | |
279 | |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
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280 range->start = start; |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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281 range->end = r->headers_out.content_length_n; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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283 if (*p++ != ',') { |
2118
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284 return NGX_OK; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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|
285 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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|
286 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
287 continue; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
288 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
289 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
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|
290 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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291 suffix = 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
292 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
293 } |
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
294 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
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|
295 if (*p < '0' || *p > '9') { |
2118
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296 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
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nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
298 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
299 while (*p >= '0' && *p <= '9') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
300 end = end * 10 + *p++ - '0'; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
301 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
302 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
304 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
305 if (*p != ',' && *p != '\0') { |
2118
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|
306 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
308 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
309 if (suffix) { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
310 start = r->headers_out.content_length_n - end; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
311 end = r->headers_out.content_length_n - 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
312 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
313 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
314 if (start > end) { |
2118
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diff
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|
315 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
316 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 |
963
78e70dae89f0
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parents:
962
diff
changeset
|
318 range = ngx_array_push(&ctx->ranges); |
501 | 319 if (range == NULL) { |
461 | 320 return NGX_ERROR; |
321 } | |
322 | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
323 range->start = start; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
324 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
325 if (end >= r->headers_out.content_length_n) { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
326 /* |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
327 * Download Accelerator sends the last byte position |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
328 * that equals to the file length |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
329 */ |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
330 range->end = r->headers_out.content_length_n; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
331 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
332 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
333 range->end = end + 1; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
334 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
335 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
336 if (*p++ != ',') { |
2118
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parents:
2049
diff
changeset
|
337 return NGX_OK; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
338 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 } |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
340 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
341 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
342 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
343 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
344 ngx_http_range_singlepart_header(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
345 ngx_http_range_filter_ctx_t *ctx) |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
346 { |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
347 ngx_table_elt_t *content_range; |
c1f589732d8c
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parents:
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diff
changeset
|
348 ngx_http_range_t *range; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
349 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
350 content_range = ngx_list_push(&r->headers_out.headers); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
351 if (content_range == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
352 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
353 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
354 |
2118
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split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
355 r->headers_out.content_range = content_range; |
461 | 356 |
2118
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parents:
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diff
changeset
|
357 content_range->hash = 1; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
358 content_range->key.len = sizeof("Content-Range") - 1; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
359 content_range->key.data = (u_char *) "Content-Range"; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
360 |
2118
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split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
361 content_range->value.data = ngx_pnalloc(r->pool, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
362 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
363 if (content_range->value.data == NULL) { |
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364 return NGX_ERROR; |
461 | 365 } |
366 | |
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367 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 368 |
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369 range = ctx->ranges.elts; |
461 | 370 |
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371 content_range->value.len = ngx_sprintf(content_range->value.data, |
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372 "bytes %O-%O/%O", |
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373 range->start, range->end - 1, |
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374 r->headers_out.content_length_n) |
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375 - content_range->value.data; |
461 | 376 |
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377 r->headers_out.content_length_n = range->end - range->start; |
461 | 378 |
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379 if (r->headers_out.content_length) { |
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380 r->headers_out.content_length->hash = 0; |
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381 r->headers_out.content_length = NULL; |
461 | 382 } |
383 | |
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384 return ngx_http_next_header_filter(r); |
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385 } |
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386 |
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387 |
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388 static ngx_int_t |
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389 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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390 ngx_http_range_filter_ctx_t *ctx) |
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391 { |
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392 size_t len; |
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393 ngx_uint_t i; |
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394 ngx_http_range_t *range; |
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395 ngx_atomic_uint_t boundary; |
461 | 396 |
493 | 397 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
398 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 399 + r->headers_out.content_type.len |
461 | 400 + sizeof(CRLF "Content-Range: bytes ") - 1; |
401 | |
402 if (r->headers_out.charset.len) { | |
403 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
404 } | |
405 | |
2049 | 406 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 407 if (ctx->boundary_header.data == NULL) { |
461 | 408 return NGX_ERROR; |
409 } | |
410 | |
493 | 411 boundary = ngx_next_temp_number(0); |
461 | 412 |
413 /* | |
414 * The boundary header of the range: | |
415 * CRLF | |
416 * "--0123456789" CRLF | |
417 * "Content-Type: image/jpeg" CRLF | |
418 * "Content-Range: bytes " | |
419 */ | |
420 | |
421 if (r->headers_out.charset.len) { | |
422 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 423 CRLF "--%0muA" CRLF |
461 | 424 "Content-Type: %V; charset=%V" CRLF |
425 "Content-Range: bytes ", | |
426 boundary, | |
509 | 427 &r->headers_out.content_type, |
461 | 428 &r->headers_out.charset) |
429 - ctx->boundary_header.data; | |
430 | |
431 r->headers_out.charset.len = 0; | |
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432 |
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433 } else if (r->headers_out.content_type.len) { |
461 | 434 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 435 CRLF "--%0muA" CRLF |
461 | 436 "Content-Type: %V" CRLF |
437 "Content-Range: bytes ", | |
438 boundary, | |
509 | 439 &r->headers_out.content_type) |
461 | 440 - ctx->boundary_header.data; |
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441 |
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442 } else { |
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443 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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444 CRLF "--%0muA" CRLF |
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445 "Content-Range: bytes ", |
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446 boundary) |
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447 - ctx->boundary_header.data; |
461 | 448 } |
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449 |
509 | 450 r->headers_out.content_type.data = |
2049 | 451 ngx_pnalloc(r->pool, |
452 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
453 + NGX_ATOMIC_T_LEN); | |
165
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454 |
509 | 455 if (r->headers_out.content_type.data == NULL) { |
461 | 456 return NGX_ERROR; |
457 } | |
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458 |
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459 r->headers_out.content_type_lowcase = NULL; |
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460 |
461 | 461 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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462 |
509 | 463 r->headers_out.content_type.len = |
464 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 465 "multipart/byteranges; boundary=%0muA", |
461 | 466 boundary) |
509 | 467 - r->headers_out.content_type.data; |
160
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468 |
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469 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 470 |
461 | 471 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 472 |
473 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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474 |
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475 range = ctx->ranges.elts; |
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476 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 477 |
461 | 478 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 479 |
461 | 480 range[i].content_range.data = |
2049 | 481 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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482 |
461 | 483 if (range[i].content_range.data == NULL) { |
484 return NGX_ERROR; | |
485 } | |
99
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486 |
461 | 487 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
488 "%O-%O/%O" CRLF CRLF, | |
489 range[i].start, range[i].end - 1, | |
490 r->headers_out.content_length_n) | |
491 - range[i].content_range.data; | |
160
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492 |
461 | 493 len += ctx->boundary_header.len + range[i].content_range.len |
494 + (size_t) (range[i].end - range[i].start); | |
495 } | |
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496 |
461 | 497 r->headers_out.content_length_n = len; |
960 | 498 |
499 if (r->headers_out.content_length) { | |
500 r->headers_out.content_length->hash = 0; | |
501 r->headers_out.content_length = NULL; | |
502 } | |
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503 |
155
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504 return ngx_http_next_header_filter(r); |
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505 } |
1630 | 506 |
507 | |
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508 static ngx_int_t |
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509 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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510 { |
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511 ngx_table_elt_t *content_range; |
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512 |
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513 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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514 |
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515 content_range = ngx_list_push(&r->headers_out.headers); |
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516 if (content_range == NULL) { |
1630 | 517 return NGX_ERROR; |
518 } | |
519 | |
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520 r->headers_out.content_range = content_range; |
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521 |
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522 content_range->hash = 1; |
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523 content_range->key.len = sizeof("Content-Range") - 1; |
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524 content_range->key.data = (u_char *) "Content-Range"; |
1630 | 525 |
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526 content_range->value.data = ngx_pnalloc(r->pool, |
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527 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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528 if (content_range->value.data == NULL) { |
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529 return NGX_ERROR; |
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530 } |
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531 |
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532 content_range->value.len = ngx_sprintf(content_range->value.data, |
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533 "bytes */%O", |
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534 r->headers_out.content_length_n) |
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535 - content_range->value.data; |
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536 |
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537 ngx_http_clear_content_length(r); |
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538 |
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539 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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540 } |
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541 |
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542 |
493 | 543 static ngx_int_t |
544 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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545 { |
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546 ngx_http_range_filter_ctx_t *ctx; |
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547 |
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548 if (in == NULL) { |
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549 return ngx_http_next_body_filter(r, in); |
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550 } |
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551 |
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552 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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553 |
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|
554 if (ctx == NULL) { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
555 return ngx_http_next_body_filter(r, in); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
556 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
557 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
558 if (ctx->ranges.nelts == 1) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
559 return ngx_http_range_singlepart_body(r, ctx, in); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
560 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
561 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
562 /* |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
563 * multipart ranges are supported only if whole body is in a single buffer |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
564 */ |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
565 |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
566 if (ngx_buf_special(in->buf)) { |
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
567 return ngx_http_next_body_filter(r, in); |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
568 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
569 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
570 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
571 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
572 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
573 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
574 return ngx_http_range_multipart_body(r, ctx, in); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
575 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
576 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
577 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
578 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
579 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
580 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
581 { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
582 off_t start, last; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
583 ngx_buf_t *buf; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
584 ngx_uint_t i; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
585 ngx_http_range_t *range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
586 |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
587 if (ctx->offset) { |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
588 goto overlapped; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
589 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
590 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
591 buf = in->buf; |
960 | 592 |
593 if (!buf->last_buf) { | |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
594 |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
595 if (buf->in_file) { |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
596 start = buf->file_pos + ctx->offset; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
597 last = buf->file_last + ctx->offset; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
598 |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
599 } else { |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
600 start = buf->pos - buf->start + ctx->offset; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
601 last = buf->last - buf->start + ctx->offset; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
602 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
603 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
604 range = ctx->ranges.elts; |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
605 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
606 if (start > range[i].start || last < range[i].end) { |
960 | 607 goto overlapped; |
608 } | |
609 } | |
610 } | |
611 | |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
612 ctx->offset = ngx_buf_size(buf); |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
613 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
614 return NGX_OK; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
615 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
616 overlapped: |
960 | 617 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
618 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
619 "range in overlapped buffers"); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
620 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
621 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
622 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
623 |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
624 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
625 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
626 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
627 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
628 { |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
629 off_t start, last; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
630 ngx_buf_t *buf; |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
631 ngx_chain_t *out, *cl, **ll; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
632 ngx_http_range_t *range; |
960 | 633 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
634 out = NULL; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
635 ll = &out; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
636 range = ctx->ranges.elts; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
637 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
638 for (cl = in; cl; cl = cl->next) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
639 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
640 buf = cl->buf; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
641 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
642 start = ctx->offset; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
643 last = ctx->offset + ngx_buf_size(buf); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
644 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
645 ctx->offset = last; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
646 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
647 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
648 "http range body buf: %O-%O", start, last); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
649 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
650 if (ngx_buf_special(buf)) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
651 *ll = cl; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
652 ll = &cl->next; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
653 continue; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
654 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
655 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
656 if (range->end <= start || range->start >= last) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
657 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
658 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
659 "http range body skip"); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
660 |
2269 | 661 if (buf->in_file) { |
662 buf->file_pos = buf->file_last; | |
663 } | |
664 | |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
665 buf->pos = buf->last; |
2269 | 666 buf->sync = 1; |
667 | |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
668 continue; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
669 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
670 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
671 if (range->start > start) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
672 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
673 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
674 buf->file_pos += range->start - start; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
675 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
676 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
677 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
678 buf->pos += (size_t) (range->start - start); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
679 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
680 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
681 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
682 if (range->end <= last) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
683 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
684 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
685 buf->file_last -= last - range->end; |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
686 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
687 |
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688 if (ngx_buf_in_memory(buf)) { |
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689 buf->last -= (size_t) (last - range->end); |
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690 } |
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691 |
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692 buf->last_buf = 1; |
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693 *ll = cl; |
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694 cl->next = NULL; |
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695 |
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696 break; |
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697 } |
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698 |
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699 *ll = cl; |
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700 ll = &cl->next; |
960 | 701 } |
702 | |
2121
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703 if (out == NULL) { |
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704 return NGX_OK; |
2118
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705 } |
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706 |
2121
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707 return ngx_http_next_body_filter(r, out); |
2118
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708 } |
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|
709 |
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|
710 |
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|
711 static ngx_int_t |
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712 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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713 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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714 { |
2592
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715 off_t body_start; |
2118
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716 ngx_buf_t *b, *buf; |
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717 ngx_uint_t i; |
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718 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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719 ngx_http_range_t *range; |
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720 |
960 | 721 ll = &out; |
2118
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|
722 buf = in->buf; |
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|
723 range = ctx->ranges.elts; |
160
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724 |
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725 #if (NGX_HTTP_CACHE) |
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726 body_start = r->cached ? r->cache->body_start : 0; |
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727 #else |
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728 body_start = 0; |
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729 #endif |
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|
730 |
963
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962
diff
changeset
|
731 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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|
732 |
960 | 733 /* |
734 * The boundary header of the range: | |
735 * CRLF | |
736 * "--0123456789" CRLF | |
737 * "Content-Type: image/jpeg" CRLF | |
738 * "Content-Range: bytes " | |
739 */ | |
740 | |
741 b = ngx_calloc_buf(r->pool); | |
742 if (b == NULL) { | |
743 return NGX_ERROR; | |
99
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diff
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|
744 } |
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parents:
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|
745 |
960 | 746 b->memory = 1; |
747 b->pos = ctx->boundary_header.data; | |
748 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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|
749 |
960 | 750 hcl = ngx_alloc_chain_link(r->pool); |
751 if (hcl == NULL) { | |
752 return NGX_ERROR; | |
753 } | |
461 | 754 |
960 | 755 hcl->buf = b; |
99
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|
756 |
461 | 757 |
960 | 758 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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759 |
501 | 760 b = ngx_calloc_buf(r->pool); |
761 if (b == NULL) { | |
461 | 762 return NGX_ERROR; |
763 } | |
764 | |
343
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335
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|
765 b->temporary = 1; |
960 | 766 b->pos = range[i].content_range.data; |
767 b->last = range[i].content_range.data + range[i].content_range.len; | |
768 | |
769 rcl = ngx_alloc_chain_link(r->pool); | |
770 if (rcl == NULL) { | |
771 return NGX_ERROR; | |
772 } | |
773 | |
774 rcl->buf = b; | |
775 | |
776 | |
777 /* the range data */ | |
461 | 778 |
960 | 779 b = ngx_calloc_buf(r->pool); |
780 if (b == NULL) { | |
781 return NGX_ERROR; | |
782 } | |
783 | |
962
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784 b->in_file = buf->in_file; |
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|
785 b->temporary = buf->temporary; |
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|
786 b->memory = buf->memory; |
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|
787 b->mmap = buf->mmap; |
960 | 788 b->file = buf->file; |
789 | |
962
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changeset
|
790 if (buf->in_file) { |
2592
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|
791 b->file_pos = body_start + range[i].start; |
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|
792 b->file_last = body_start + range[i].end; |
962
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|
793 } |
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diff
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|
794 |
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diff
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|
795 if (ngx_buf_in_memory(buf)) { |
1093 | 796 b->pos = buf->start + (size_t) range[i].start; |
797 b->last = buf->start + (size_t) range[i].end; | |
962
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diff
changeset
|
798 } |
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|
799 |
960 | 800 dcl = ngx_alloc_chain_link(r->pool); |
801 if (dcl == NULL) { | |
461 | 802 return NGX_ERROR; |
803 } | |
804 | |
960 | 805 dcl->buf = b; |
461 | 806 |
155
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|
807 *ll = hcl; |
960 | 808 hcl->next = rcl; |
809 rcl->next = dcl; | |
810 ll = &dcl->next; | |
811 } | |
99
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|
812 |
960 | 813 /* the last boundary CRLF "--0123456789--" CRLF */ |
814 | |
815 b = ngx_calloc_buf(r->pool); | |
816 if (b == NULL) { | |
817 return NGX_ERROR; | |
818 } | |
819 | |
820 b->temporary = 1; | |
821 b->last_buf = 1; | |
822 | |
2049 | 823 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
824 + sizeof("--" CRLF) - 1); | |
960 | 825 if (b->pos == NULL) { |
826 return NGX_ERROR; | |
99
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|
827 } |
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diff
changeset
|
828 |
1195
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1107
diff
changeset
|
829 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
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parents:
1107
diff
changeset
|
830 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 831 *b->last++ = '-'; *b->last++ = '-'; |
832 *b->last++ = CR; *b->last++ = LF; | |
833 | |
834 hcl = ngx_alloc_chain_link(r->pool); | |
835 if (hcl == NULL) { | |
836 return NGX_ERROR; | |
837 } | |
838 | |
839 hcl->buf = b; | |
840 hcl->next = NULL; | |
99
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diff
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|
841 |
960 | 842 *ll = hcl; |
843 | |
844 return ngx_http_next_body_filter(r, out); | |
99
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|
845 } |
a059e1aa65d4
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diff
changeset
|
846 |
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|
847 |
493 | 848 static ngx_int_t |
681 | 849 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
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|
850 { |
155
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153
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|
851 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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parents:
diff
changeset
|
852 ngx_http_top_header_filter = ngx_http_range_header_filter; |
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diff
changeset
|
853 |
334
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314
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|
854 return NGX_OK; |
af451db3fe99
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|
855 } |
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|
856 |
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|
857 |
493 | 858 static ngx_int_t |
681 | 859 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
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314
diff
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|
860 { |
155
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|
861 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
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parents:
diff
changeset
|
862 ngx_http_top_body_filter = ngx_http_range_body_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
863 |
a059e1aa65d4
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diff
changeset
|
864 return NGX_OK; |
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
865 } |