Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 4035:c2a91088b0c0
Now if total size of all ranges is greater than source response size,
then nginx disables ranges and returns just the source response.
This fix should not affect well-behaving applications but will defeat
DoS attempts exploiting malicious byte ranges.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 26 Aug 2011 09:42:50 +0000 |
parents | dd1570b6f237 |
children | 20c7c73d3efa |
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 |
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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; |
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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 |
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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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117 NULL, /* create server configuration */ |
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118 NULL, /* merge server configuration */ |
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119 |
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314
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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; |
99
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149 ngx_http_range_filter_ctx_t *ctx; |
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150 |
160
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nginx-0.0.1-2003-10-27-11:53:49 import
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155
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151 if (r->http_version < NGX_HTTP_VERSION_10 |
99
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152 || r->headers_out.status != NGX_HTTP_OK |
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153 || r != r->main |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
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154 || r->headers_out.content_length_n == -1 |
581 | 155 || !r->allow_ranges) |
117
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113
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|
156 { |
155
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157 return ngx_http_next_header_filter(r); |
117
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158 } |
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159 |
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|
160 if (r->headers_in.range == NULL |
99
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|
161 || r->headers_in.range->value.len < 7 |
1107
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ngx_strcasecmp()/ngx_strncasecmp()
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162 || ngx_strncasecmp(r->headers_in.range->value.data, |
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163 (u_char *) "bytes=", 6) |
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164 != 0) |
99
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165 { |
1630 | 166 goto next_filter; |
167 } | |
168 | |
169 if (r->headers_in.if_range && r->headers_out.last_modified_time != -1) { | |
170 | |
171 if_range = ngx_http_parse_time(r->headers_in.if_range->value.data, | |
172 r->headers_in.if_range->value.len); | |
117
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173 |
1630 | 174 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
175 "http ir:%d lm:%d", | |
176 if_range, r->headers_out.last_modified_time); | |
117
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|
177 |
1630 | 178 if (if_range != r->headers_out.last_modified_time) { |
179 goto next_filter; | |
180 } | |
99
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181 } |
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182 |
963
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183 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
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184 if (ctx == NULL) { |
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185 return NGX_ERROR; |
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186 } |
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187 |
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188 if (ngx_array_init(&ctx->ranges, r->pool, 1, sizeof(ngx_http_range_t)) |
2536
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
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diff
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|
189 != NGX_OK) |
461 | 190 { |
191 return NGX_ERROR; | |
192 } | |
99
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193 |
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Now if total size of all ranges is greater than source response size,
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|
194 switch (ngx_http_range_parse(r, ctx)) { |
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195 |
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|
196 case NGX_OK: |
2118
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197 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
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198 |
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199 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
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a prelimiary proxy cache support
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diff
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200 r->headers_out.status_line.len = 0; |
2118
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201 |
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202 if (ctx->ranges.nelts == 1) { |
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203 return ngx_http_range_singlepart_header(r, ctx); |
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204 } |
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|
205 |
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206 return ngx_http_range_multipart_header(r, ctx); |
4035
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Now if total size of all ranges is greater than source response size,
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207 |
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Now if total size of all ranges is greater than source response size,
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|
208 case NGX_HTTP_RANGE_NOT_SATISFIABLE: |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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|
209 return ngx_http_range_not_satisfiable(r); |
2118
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210 |
4035
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|
211 case NGX_ERROR: |
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|
212 return NGX_ERROR; |
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213 |
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|
214 default: /* NGX_DECLINED */ |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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|
215 break; |
2118
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|
216 } |
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|
217 |
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|
218 next_filter: |
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219 |
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220 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
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|
221 if (r->headers_out.accept_ranges == NULL) { |
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222 return NGX_ERROR; |
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|
223 } |
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|
224 |
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|
225 r->headers_out.accept_ranges->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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3331
diff
changeset
|
226 ngx_str_set(&r->headers_out.accept_ranges->key, "Accept-Ranges"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
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|
227 ngx_str_set(&r->headers_out.accept_ranges->value, "bytes"); |
2118
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228 |
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229 return ngx_http_next_header_filter(r); |
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|
230 } |
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|
231 |
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|
232 |
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|
233 ngx_int_t |
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|
234 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx) |
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|
235 { |
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|
236 u_char *p; |
4035
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Now if total size of all ranges is greater than source response size,
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|
237 off_t start, end, size; |
2118
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|
238 ngx_uint_t suffix; |
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|
239 ngx_http_range_t *range; |
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|
240 |
99
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changeset
|
241 p = r->headers_in.range->value.data + 6; |
4035
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Now if total size of all ranges is greater than source response size,
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|
242 size = 0; |
99
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parents:
diff
changeset
|
243 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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changeset
|
244 for ( ;; ) { |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
245 start = 0; |
92db0aa1e83f
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195
diff
changeset
|
246 end = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
247 suffix = 0; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
248 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
249 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
250 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
251 if (*p != '-') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
252 if (*p < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
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|
253 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
changeset
|
254 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
255 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
256 while (*p >= '0' && *p <= '9') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
257 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
changeset
|
258 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
259 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
260 while (*p == ' ') { p++; } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
261 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
262 if (*p++ != '-') { |
2118
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split ngx_http_range_filter_module
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parents:
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diff
changeset
|
263 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
changeset
|
264 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
265 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
266 if (start >= r->headers_out.content_length_n) { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
267 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
changeset
|
268 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
269 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
270 while (*p == ' ') { p++; } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
271 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
272 if (*p == ',' || *p == '\0') { |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
273 range = ngx_array_push(&ctx->ranges); |
501 | 274 if (range == NULL) { |
461 | 275 return NGX_ERROR; |
276 } | |
277 | |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
278 range->start = start; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
279 range->end = r->headers_out.content_length_n; |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
280 size += range->end - start; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
282 if (*p++ != ',') { |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
283 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
284 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
285 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 continue; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
287 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
288 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
289 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
290 suffix = 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
291 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
292 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
293 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
294 if (*p < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
295 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
|
296 } |
a059e1aa65d4
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 while (*p >= '0' && *p <= '9') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
299 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
|
300 } |
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 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
304 if (*p != ',' && *p != '\0') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
305 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
|
306 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
308 if (suffix) { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
309 start = r->headers_out.content_length_n - end; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
310 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
|
311 } |
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 if (start > end) { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
314 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
|
315 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
316 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
317 range = ngx_array_push(&ctx->ranges); |
501 | 318 if (range == NULL) { |
461 | 319 return NGX_ERROR; |
320 } | |
321 | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
322 range->start = start; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
323 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
324 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
|
325 /* |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
326 * Download Accelerator sends the last byte position |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
327 * that equals to the file length |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
328 */ |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
329 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
|
330 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
331 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
332 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
|
333 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
334 |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
335 size += range->end - start; |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
336 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
337 if (*p++ != ',') { |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
338 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
339 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
340 } |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
341 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
342 if (size > r->headers_out.content_length_n) { |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
343 return NGX_DECLINED; |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
344 } |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
345 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
346 return NGX_OK; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
347 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
348 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
349 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
350 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
351 ngx_http_range_singlepart_header(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
352 ngx_http_range_filter_ctx_t *ctx) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
353 { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
354 ngx_table_elt_t *content_range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
355 ngx_http_range_t *range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
356 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
357 content_range = ngx_list_push(&r->headers_out.headers); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
358 if (content_range == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
359 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
360 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
361 |
2118
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362 r->headers_out.content_range = content_range; |
461 | 363 |
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364 content_range->hash = 1; |
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365 ngx_str_set(&content_range->key, "Content-Range"); |
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366 |
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367 content_range->value.data = ngx_pnalloc(r->pool, |
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368 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
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369 if (content_range->value.data == NULL) { |
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370 return NGX_ERROR; |
461 | 371 } |
372 | |
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373 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 374 |
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375 range = ctx->ranges.elts; |
461 | 376 |
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377 content_range->value.len = ngx_sprintf(content_range->value.data, |
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378 "bytes %O-%O/%O", |
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379 range->start, range->end - 1, |
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380 r->headers_out.content_length_n) |
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381 - content_range->value.data; |
461 | 382 |
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383 r->headers_out.content_length_n = range->end - range->start; |
461 | 384 |
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385 if (r->headers_out.content_length) { |
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386 r->headers_out.content_length->hash = 0; |
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387 r->headers_out.content_length = NULL; |
461 | 388 } |
389 | |
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390 return ngx_http_next_header_filter(r); |
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391 } |
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392 |
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393 |
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394 static ngx_int_t |
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395 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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396 ngx_http_range_filter_ctx_t *ctx) |
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397 { |
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398 size_t len; |
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399 ngx_uint_t i; |
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400 ngx_http_range_t *range; |
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401 ngx_atomic_uint_t boundary; |
461 | 402 |
493 | 403 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
404 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 405 + r->headers_out.content_type.len |
461 | 406 + sizeof(CRLF "Content-Range: bytes ") - 1; |
407 | |
408 if (r->headers_out.charset.len) { | |
409 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
410 } | |
411 | |
2049 | 412 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 413 if (ctx->boundary_header.data == NULL) { |
461 | 414 return NGX_ERROR; |
415 } | |
416 | |
493 | 417 boundary = ngx_next_temp_number(0); |
461 | 418 |
419 /* | |
420 * The boundary header of the range: | |
421 * CRLF | |
422 * "--0123456789" CRLF | |
423 * "Content-Type: image/jpeg" CRLF | |
424 * "Content-Range: bytes " | |
425 */ | |
426 | |
427 if (r->headers_out.charset.len) { | |
428 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 429 CRLF "--%0muA" CRLF |
461 | 430 "Content-Type: %V; charset=%V" CRLF |
431 "Content-Range: bytes ", | |
432 boundary, | |
509 | 433 &r->headers_out.content_type, |
461 | 434 &r->headers_out.charset) |
435 - ctx->boundary_header.data; | |
436 | |
437 r->headers_out.charset.len = 0; | |
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438 |
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439 } else if (r->headers_out.content_type.len) { |
461 | 440 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 441 CRLF "--%0muA" CRLF |
461 | 442 "Content-Type: %V" CRLF |
443 "Content-Range: bytes ", | |
444 boundary, | |
509 | 445 &r->headers_out.content_type) |
461 | 446 - ctx->boundary_header.data; |
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447 |
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448 } else { |
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449 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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450 CRLF "--%0muA" CRLF |
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451 "Content-Range: bytes ", |
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452 boundary) |
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453 - ctx->boundary_header.data; |
461 | 454 } |
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455 |
509 | 456 r->headers_out.content_type.data = |
2049 | 457 ngx_pnalloc(r->pool, |
458 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
459 + NGX_ATOMIC_T_LEN); | |
165
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460 |
509 | 461 if (r->headers_out.content_type.data == NULL) { |
461 | 462 return NGX_ERROR; |
463 } | |
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464 |
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465 r->headers_out.content_type_lowcase = NULL; |
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466 |
461 | 467 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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468 |
509 | 469 r->headers_out.content_type.len = |
470 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 471 "multipart/byteranges; boundary=%0muA", |
461 | 472 boundary) |
509 | 473 - r->headers_out.content_type.data; |
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474 |
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475 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 476 |
461 | 477 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 478 |
479 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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480 |
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481 range = ctx->ranges.elts; |
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482 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 483 |
461 | 484 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 485 |
461 | 486 range[i].content_range.data = |
2049 | 487 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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488 |
461 | 489 if (range[i].content_range.data == NULL) { |
490 return NGX_ERROR; | |
491 } | |
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492 |
461 | 493 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
494 "%O-%O/%O" CRLF CRLF, | |
495 range[i].start, range[i].end - 1, | |
496 r->headers_out.content_length_n) | |
497 - range[i].content_range.data; | |
160
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498 |
461 | 499 len += ctx->boundary_header.len + range[i].content_range.len |
500 + (size_t) (range[i].end - range[i].start); | |
501 } | |
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502 |
461 | 503 r->headers_out.content_length_n = len; |
960 | 504 |
505 if (r->headers_out.content_length) { | |
506 r->headers_out.content_length->hash = 0; | |
507 r->headers_out.content_length = NULL; | |
508 } | |
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509 |
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510 return ngx_http_next_header_filter(r); |
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511 } |
1630 | 512 |
513 | |
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514 static ngx_int_t |
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515 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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516 { |
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517 ngx_table_elt_t *content_range; |
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518 |
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519 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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520 |
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521 content_range = ngx_list_push(&r->headers_out.headers); |
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522 if (content_range == NULL) { |
1630 | 523 return NGX_ERROR; |
524 } | |
525 | |
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526 r->headers_out.content_range = content_range; |
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527 |
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528 content_range->hash = 1; |
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529 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 530 |
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531 content_range->value.data = ngx_pnalloc(r->pool, |
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532 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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533 if (content_range->value.data == NULL) { |
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534 return NGX_ERROR; |
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535 } |
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536 |
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537 content_range->value.len = ngx_sprintf(content_range->value.data, |
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538 "bytes */%O", |
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539 r->headers_out.content_length_n) |
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540 - content_range->value.data; |
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541 |
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542 ngx_http_clear_content_length(r); |
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543 |
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544 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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545 } |
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546 |
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547 |
493 | 548 static ngx_int_t |
549 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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550 { |
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551 ngx_http_range_filter_ctx_t *ctx; |
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552 |
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|
553 if (in == NULL) { |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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962
diff
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|
554 return ngx_http_next_body_filter(r, in); |
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962
diff
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|
555 } |
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diff
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|
556 |
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diff
changeset
|
557 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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diff
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|
558 |
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|
559 if (ctx == NULL) { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
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153
diff
changeset
|
560 return ngx_http_next_body_filter(r, in); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
561 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
562 |
2121
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support several buf's for single-part range
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2119
diff
changeset
|
563 if (ctx->ranges.nelts == 1) { |
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support several buf's for single-part range
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parents:
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diff
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|
564 return ngx_http_range_singlepart_body(r, ctx, in); |
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|
565 } |
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support several buf's for single-part range
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diff
changeset
|
566 |
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diff
changeset
|
567 /* |
b39c0040b3e4
support several buf's for single-part range
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diff
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|
568 * multipart ranges are supported only if whole body is in a single buffer |
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parents:
2119
diff
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|
569 */ |
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parents:
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diff
changeset
|
570 |
962
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diff
changeset
|
571 if (ngx_buf_special(in->buf)) { |
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parents:
961
diff
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|
572 return ngx_http_next_body_filter(r, in); |
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|
573 } |
69754fb59ba1
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diff
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|
574 |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
575 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
576 return NGX_ERROR; |
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diff
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|
577 } |
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diff
changeset
|
578 |
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split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
579 return ngx_http_range_multipart_body(r, ctx, in); |
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split ngx_http_range_filter_module
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diff
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|
580 } |
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split ngx_http_range_filter_module
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parents:
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diff
changeset
|
581 |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
582 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
583 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
584 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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split ngx_http_range_filter_module
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diff
changeset
|
585 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
changeset
|
586 { |
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diff
changeset
|
587 off_t start, last; |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
588 ngx_buf_t *buf; |
c1f589732d8c
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parents:
2049
diff
changeset
|
589 ngx_uint_t i; |
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
590 ngx_http_range_t *range; |
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diff
changeset
|
591 |
962
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961
diff
changeset
|
592 if (ctx->offset) { |
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
593 goto overlapped; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
594 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
595 |
2118
c1f589732d8c
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diff
changeset
|
596 buf = in->buf; |
960 | 597 |
598 if (!buf->last_buf) { | |
962
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diff
changeset
|
599 |
69754fb59ba1
support ranges for single memory buffer
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diff
changeset
|
600 if (buf->in_file) { |
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diff
changeset
|
601 start = buf->file_pos + ctx->offset; |
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diff
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|
602 last = buf->file_last + ctx->offset; |
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support ranges for single memory buffer
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diff
changeset
|
603 |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
604 } else { |
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support ranges for single memory buffer
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diff
changeset
|
605 start = buf->pos - buf->start + ctx->offset; |
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diff
changeset
|
606 last = buf->last - buf->start + ctx->offset; |
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support ranges for single memory buffer
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961
diff
changeset
|
607 } |
69754fb59ba1
support ranges for single memory buffer
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961
diff
changeset
|
608 |
2118
c1f589732d8c
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parents:
2049
diff
changeset
|
609 range = ctx->ranges.elts; |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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962
diff
changeset
|
610 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
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parents:
961
diff
changeset
|
611 if (start > range[i].start || last < range[i].end) { |
960 | 612 goto overlapped; |
613 } | |
614 } | |
615 } | |
616 | |
962
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961
diff
changeset
|
617 ctx->offset = ngx_buf_size(buf); |
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diff
changeset
|
618 |
2118
c1f589732d8c
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diff
changeset
|
619 return NGX_OK; |
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
620 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
621 overlapped: |
960 | 622 |
2118
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parents:
2049
diff
changeset
|
623 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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split ngx_http_range_filter_module
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diff
changeset
|
624 "range in overlapped buffers"); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
625 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
626 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
627 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
628 |
962
69754fb59ba1
support ranges for single memory buffer
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961
diff
changeset
|
629 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
630 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
631 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
632 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
633 { |
2121
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
634 off_t start, last; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
635 ngx_buf_t *buf; |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
636 ngx_chain_t *out, *cl, **ll; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
637 ngx_http_range_t *range; |
960 | 638 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
639 out = NULL; |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
640 ll = &out; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
641 range = ctx->ranges.elts; |
c1f589732d8c
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diff
changeset
|
642 |
2121
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
643 for (cl = in; cl; cl = cl->next) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
644 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
645 buf = cl->buf; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
646 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
647 start = ctx->offset; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
648 last = ctx->offset + ngx_buf_size(buf); |
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support several buf's for single-part range
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diff
changeset
|
649 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
650 ctx->offset = last; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
651 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
652 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
653 "http range body buf: %O-%O", start, last); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
654 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
655 if (ngx_buf_special(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
656 *ll = cl; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
657 ll = &cl->next; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
658 continue; |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
659 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
660 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
661 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
|
662 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
663 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
664 "http range body skip"); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
665 |
2269 | 666 if (buf->in_file) { |
667 buf->file_pos = buf->file_last; | |
668 } | |
669 | |
2121
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support several buf's for single-part range
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diff
changeset
|
670 buf->pos = buf->last; |
2269 | 671 buf->sync = 1; |
672 | |
2121
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support several buf's for single-part range
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2119
diff
changeset
|
673 continue; |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
674 } |
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 if (range->start > start) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
677 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
678 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
679 buf->file_pos += range->start - start; |
b39c0040b3e4
support several buf's for single-part range
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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>
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2119
diff
changeset
|
682 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
683 buf->pos += (size_t) (range->start - start); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
684 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
685 } |
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686 |
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687 if (range->end <= last) { |
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688 |
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689 if (buf->in_file) { |
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690 buf->file_last -= last - range->end; |
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691 } |
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692 |
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693 if (ngx_buf_in_memory(buf)) { |
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694 buf->last -= (size_t) (last - range->end); |
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695 } |
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696 |
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697 buf->last_buf = 1; |
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698 *ll = cl; |
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699 cl->next = NULL; |
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|
700 |
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701 break; |
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702 } |
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|
703 |
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704 *ll = cl; |
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705 ll = &cl->next; |
960 | 706 } |
707 | |
2121
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708 if (out == NULL) { |
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709 return NGX_OK; |
2118
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|
710 } |
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|
711 |
2121
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712 return ngx_http_next_body_filter(r, out); |
2118
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|
713 } |
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|
714 |
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|
715 |
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|
716 static ngx_int_t |
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717 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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|
718 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
719 { |
2592
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720 off_t body_start; |
2118
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721 ngx_buf_t *b, *buf; |
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722 ngx_uint_t i; |
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|
723 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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|
724 ngx_http_range_t *range; |
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|
725 |
960 | 726 ll = &out; |
2118
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|
727 buf = in->buf; |
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|
728 range = ctx->ranges.elts; |
160
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729 |
2592
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|
730 #if (NGX_HTTP_CACHE) |
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|
731 body_start = r->cached ? r->cache->body_start : 0; |
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|
732 #else |
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diff
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|
733 body_start = 0; |
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|
734 #endif |
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diff
changeset
|
735 |
963
78e70dae89f0
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parents:
962
diff
changeset
|
736 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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parents:
diff
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|
737 |
960 | 738 /* |
739 * The boundary header of the range: | |
740 * CRLF | |
741 * "--0123456789" CRLF | |
742 * "Content-Type: image/jpeg" CRLF | |
743 * "Content-Range: bytes " | |
744 */ | |
745 | |
746 b = ngx_calloc_buf(r->pool); | |
747 if (b == NULL) { | |
748 return NGX_ERROR; | |
99
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diff
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|
749 } |
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parents:
diff
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|
750 |
960 | 751 b->memory = 1; |
752 b->pos = ctx->boundary_header.data; | |
753 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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diff
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|
754 |
960 | 755 hcl = ngx_alloc_chain_link(r->pool); |
756 if (hcl == NULL) { | |
757 return NGX_ERROR; | |
758 } | |
461 | 759 |
960 | 760 hcl->buf = b; |
99
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|
761 |
461 | 762 |
960 | 763 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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|
764 |
501 | 765 b = ngx_calloc_buf(r->pool); |
766 if (b == NULL) { | |
461 | 767 return NGX_ERROR; |
768 } | |
769 | |
343
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parents:
335
diff
changeset
|
770 b->temporary = 1; |
960 | 771 b->pos = range[i].content_range.data; |
772 b->last = range[i].content_range.data + range[i].content_range.len; | |
773 | |
774 rcl = ngx_alloc_chain_link(r->pool); | |
775 if (rcl == NULL) { | |
776 return NGX_ERROR; | |
777 } | |
778 | |
779 rcl->buf = b; | |
780 | |
781 | |
782 /* the range data */ | |
461 | 783 |
960 | 784 b = ngx_calloc_buf(r->pool); |
785 if (b == NULL) { | |
786 return NGX_ERROR; | |
787 } | |
788 | |
962
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|
789 b->in_file = buf->in_file; |
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diff
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|
790 b->temporary = buf->temporary; |
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changeset
|
791 b->memory = buf->memory; |
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diff
changeset
|
792 b->mmap = buf->mmap; |
960 | 793 b->file = buf->file; |
794 | |
962
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Igor Sysoev <igor@sysoev.ru>
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961
diff
changeset
|
795 if (buf->in_file) { |
2592
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diff
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|
796 b->file_pos = body_start + range[i].start; |
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diff
changeset
|
797 b->file_last = body_start + range[i].end; |
962
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diff
changeset
|
798 } |
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diff
changeset
|
799 |
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diff
changeset
|
800 if (ngx_buf_in_memory(buf)) { |
1093 | 801 b->pos = buf->start + (size_t) range[i].start; |
802 b->last = buf->start + (size_t) range[i].end; | |
962
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diff
changeset
|
803 } |
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
804 |
960 | 805 dcl = ngx_alloc_chain_link(r->pool); |
806 if (dcl == NULL) { | |
461 | 807 return NGX_ERROR; |
808 } | |
809 | |
960 | 810 dcl->buf = b; |
461 | 811 |
155
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|
812 *ll = hcl; |
960 | 813 hcl->next = rcl; |
814 rcl->next = dcl; | |
815 ll = &dcl->next; | |
816 } | |
99
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parents:
diff
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|
817 |
960 | 818 /* the last boundary CRLF "--0123456789--" CRLF */ |
819 | |
820 b = ngx_calloc_buf(r->pool); | |
821 if (b == NULL) { | |
822 return NGX_ERROR; | |
823 } | |
824 | |
825 b->temporary = 1; | |
826 b->last_buf = 1; | |
827 | |
2049 | 828 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
829 + sizeof("--" CRLF) - 1); | |
960 | 830 if (b->pos == NULL) { |
831 return NGX_ERROR; | |
99
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parents:
diff
changeset
|
832 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
833 |
1195
4ba6df5d5b53
fix multipart ranges trailing
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
834 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
4ba6df5d5b53
fix multipart ranges trailing
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
835 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 836 *b->last++ = '-'; *b->last++ = '-'; |
837 *b->last++ = CR; *b->last++ = LF; | |
838 | |
839 hcl = ngx_alloc_chain_link(r->pool); | |
840 if (hcl == NULL) { | |
841 return NGX_ERROR; | |
842 } | |
843 | |
844 hcl->buf = b; | |
845 hcl->next = NULL; | |
99
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parents:
diff
changeset
|
846 |
960 | 847 *ll = hcl; |
848 | |
849 return ngx_http_next_body_filter(r, out); | |
99
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
850 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
851 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
852 |
493 | 853 static ngx_int_t |
681 | 854 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
855 { |
155
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153
diff
changeset
|
856 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
857 ngx_http_top_header_filter = ngx_http_range_header_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
858 |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
859 return NGX_OK; |
af451db3fe99
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314
diff
changeset
|
860 } |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
changeset
|
861 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
changeset
|
862 |
493 | 863 static ngx_int_t |
681 | 864 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
865 { |
155
46eb23d9471d
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153
diff
changeset
|
866 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
867 ngx_http_top_body_filter = ngx_http_range_body_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
868 |
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
869 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
870 } |