Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_range_filter_module.c @ 4056:e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 30 Aug 2011 13:01:55 +0000 |
parents | 9cce506be97d |
children | 3205a6d6c6ec |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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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 */ |
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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 |
af451db3fe99
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117 NULL, /* create server configuration */ |
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314
diff
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118 NULL, /* merge server configuration */ |
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314
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119 |
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314
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120 NULL, /* create location configuration */ |
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314
diff
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|
121 NULL, /* merge location configuration */ |
af451db3fe99
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122 }; |
af451db3fe99
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314
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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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nginx-0.0.1-2003-10-22-20:38:26 import
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153
diff
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|
141 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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153
diff
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142 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
99
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parents:
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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
e7e094d34162
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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113
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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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nginx-0.0.1-2003-06-02-19:24:30 import
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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
f6e3c5d019b6
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parents:
113
diff
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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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2269
diff
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|
189 != NGX_OK) |
461 | 190 { |
191 return NGX_ERROR; | |
192 } | |
99
a059e1aa65d4
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193 |
4035
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Now if total size of all ranges is greater than source response size,
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diff
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|
194 switch (ngx_http_range_parse(r, ctx)) { |
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195 |
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Now if total size of all ranges is greater than source response size,
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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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Now if total size of all ranges is greater than source response size,
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changeset
|
211 case NGX_ERROR: |
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|
212 return NGX_ERROR; |
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Now if total size of all ranges is greater than source response size,
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|
213 |
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Now if total size of all ranges is greater than source response size,
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changeset
|
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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changeset
|
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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diff
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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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changeset
|
231 |
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changeset
|
232 |
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|
233 ngx_int_t |
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changeset
|
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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changeset
|
237 off_t start, end, size; |
2118
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|
238 ngx_uint_t suffix; |
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changeset
|
239 ngx_http_range_t *range; |
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changeset
|
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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changeset
|
242 size = 0; |
99
a059e1aa65d4
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parents:
diff
changeset
|
243 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
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
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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
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
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
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
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) { |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
267 goto skip; |
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') { |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
273 end = r->headers_out.content_length_n; |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
274 goto found; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
275 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
276 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
277 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
278 suffix = 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
279 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
280 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 if (*p < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
283 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
|
284 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
285 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 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
|
287 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
|
288 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
289 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
290 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
291 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
292 if (*p != ',' && *p != '\0') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
293 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
|
294 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
295 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
296 if (suffix) { |
4054 | 297 start = r->headers_out.content_length_n - end; |
298 end = r->headers_out.content_length_n - 1; | |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
299 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
300 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
301 if (start > end) { |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
302 goto skip; |
99
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 |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
305 if (end >= r->headers_out.content_length_n) { |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
306 end = r->headers_out.content_length_n; |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
307 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
308 } else { |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
309 end++; |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
310 } |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
311 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
312 found: |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
313 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
314 range = ngx_array_push(&ctx->ranges); |
501 | 315 if (range == NULL) { |
461 | 316 return NGX_ERROR; |
317 } | |
318 | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
319 range->start = start; |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
320 range->end = end; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
321 |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
322 size += end - start; |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
323 |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
324 skip: |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
325 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
326 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
|
327 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
328 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
329 } |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
330 |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
331 if (ctx->ranges.nelts == 0) { |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
332 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
333 } |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
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 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
|
336 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
|
337 } |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
338 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
339 return NGX_OK; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
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:
2049
diff
changeset
|
342 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
343 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
344 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
|
345 ngx_http_range_filter_ctx_t *ctx) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
346 { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
347 ngx_table_elt_t *content_range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
348 ngx_http_range_t *range; |
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 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
|
351 if (content_range == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
352 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
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
c1f589732d8c
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
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
357 content_range->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3331
diff
changeset
|
358 ngx_str_set(&content_range->key, "Content-Range"); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
359 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
360 content_range->value.data = ngx_pnalloc(r->pool, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
361 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
362 if (content_range->value.data == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
363 return NGX_ERROR; |
461 | 364 } |
365 | |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
366 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 367 |
2118
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368 range = ctx->ranges.elts; |
461 | 369 |
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370 content_range->value.len = ngx_sprintf(content_range->value.data, |
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371 "bytes %O-%O/%O", |
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372 range->start, range->end - 1, |
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373 r->headers_out.content_length_n) |
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374 - content_range->value.data; |
461 | 375 |
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376 r->headers_out.content_length_n = range->end - range->start; |
461 | 377 |
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378 if (r->headers_out.content_length) { |
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379 r->headers_out.content_length->hash = 0; |
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380 r->headers_out.content_length = NULL; |
461 | 381 } |
382 | |
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383 return ngx_http_next_header_filter(r); |
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384 } |
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385 |
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386 |
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387 static ngx_int_t |
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388 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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389 ngx_http_range_filter_ctx_t *ctx) |
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390 { |
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391 size_t len; |
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392 ngx_uint_t i; |
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393 ngx_http_range_t *range; |
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394 ngx_atomic_uint_t boundary; |
461 | 395 |
493 | 396 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
397 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 398 + r->headers_out.content_type.len |
461 | 399 + sizeof(CRLF "Content-Range: bytes ") - 1; |
400 | |
401 if (r->headers_out.charset.len) { | |
402 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
403 } | |
404 | |
2049 | 405 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 406 if (ctx->boundary_header.data == NULL) { |
461 | 407 return NGX_ERROR; |
408 } | |
409 | |
493 | 410 boundary = ngx_next_temp_number(0); |
461 | 411 |
412 /* | |
413 * The boundary header of the range: | |
414 * CRLF | |
415 * "--0123456789" CRLF | |
416 * "Content-Type: image/jpeg" CRLF | |
417 * "Content-Range: bytes " | |
418 */ | |
419 | |
420 if (r->headers_out.charset.len) { | |
421 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 422 CRLF "--%0muA" CRLF |
461 | 423 "Content-Type: %V; charset=%V" CRLF |
424 "Content-Range: bytes ", | |
425 boundary, | |
509 | 426 &r->headers_out.content_type, |
461 | 427 &r->headers_out.charset) |
428 - ctx->boundary_header.data; | |
429 | |
430 r->headers_out.charset.len = 0; | |
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431 |
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432 } else if (r->headers_out.content_type.len) { |
461 | 433 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 434 CRLF "--%0muA" CRLF |
461 | 435 "Content-Type: %V" CRLF |
436 "Content-Range: bytes ", | |
437 boundary, | |
509 | 438 &r->headers_out.content_type) |
461 | 439 - ctx->boundary_header.data; |
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440 |
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441 } else { |
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442 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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443 CRLF "--%0muA" CRLF |
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444 "Content-Range: bytes ", |
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445 boundary) |
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446 - ctx->boundary_header.data; |
461 | 447 } |
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448 |
509 | 449 r->headers_out.content_type.data = |
2049 | 450 ngx_pnalloc(r->pool, |
451 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
452 + NGX_ATOMIC_T_LEN); | |
165
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453 |
509 | 454 if (r->headers_out.content_type.data == NULL) { |
461 | 455 return NGX_ERROR; |
456 } | |
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457 |
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458 r->headers_out.content_type_lowcase = NULL; |
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459 |
461 | 460 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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461 |
509 | 462 r->headers_out.content_type.len = |
463 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 464 "multipart/byteranges; boundary=%0muA", |
461 | 465 boundary) |
509 | 466 - r->headers_out.content_type.data; |
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467 |
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468 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 469 |
461 | 470 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 471 |
472 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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473 |
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474 range = ctx->ranges.elts; |
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475 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 476 |
461 | 477 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 478 |
461 | 479 range[i].content_range.data = |
2049 | 480 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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481 |
461 | 482 if (range[i].content_range.data == NULL) { |
483 return NGX_ERROR; | |
484 } | |
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485 |
461 | 486 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
487 "%O-%O/%O" CRLF CRLF, | |
488 range[i].start, range[i].end - 1, | |
489 r->headers_out.content_length_n) | |
490 - range[i].content_range.data; | |
160
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491 |
461 | 492 len += ctx->boundary_header.len + range[i].content_range.len |
493 + (size_t) (range[i].end - range[i].start); | |
494 } | |
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495 |
461 | 496 r->headers_out.content_length_n = len; |
960 | 497 |
498 if (r->headers_out.content_length) { | |
499 r->headers_out.content_length->hash = 0; | |
500 r->headers_out.content_length = NULL; | |
501 } | |
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502 |
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503 return ngx_http_next_header_filter(r); |
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504 } |
1630 | 505 |
506 | |
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507 static ngx_int_t |
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508 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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509 { |
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510 ngx_table_elt_t *content_range; |
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511 |
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512 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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513 |
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514 content_range = ngx_list_push(&r->headers_out.headers); |
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515 if (content_range == NULL) { |
1630 | 516 return NGX_ERROR; |
517 } | |
518 | |
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519 r->headers_out.content_range = content_range; |
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520 |
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521 content_range->hash = 1; |
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522 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 523 |
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524 content_range->value.data = ngx_pnalloc(r->pool, |
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525 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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526 if (content_range->value.data == NULL) { |
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527 return NGX_ERROR; |
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528 } |
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529 |
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530 content_range->value.len = ngx_sprintf(content_range->value.data, |
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531 "bytes */%O", |
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532 r->headers_out.content_length_n) |
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533 - content_range->value.data; |
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534 |
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535 ngx_http_clear_content_length(r); |
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536 |
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537 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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538 } |
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539 |
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540 |
493 | 541 static ngx_int_t |
542 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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543 { |
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544 ngx_http_range_filter_ctx_t *ctx; |
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545 |
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546 if (in == NULL) { |
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547 return ngx_http_next_body_filter(r, in); |
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548 } |
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549 |
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550 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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551 |
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552 if (ctx == NULL) { |
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553 return ngx_http_next_body_filter(r, in); |
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554 } |
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555 |
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parents:
2119
diff
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|
556 if (ctx->ranges.nelts == 1) { |
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support several buf's for single-part range
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|
557 return ngx_http_range_singlepart_body(r, ctx, in); |
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support several buf's for single-part range
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|
558 } |
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support several buf's for single-part range
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diff
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|
559 |
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support several buf's for single-part range
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diff
changeset
|
560 /* |
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support several buf's for single-part range
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diff
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|
561 * multipart ranges are supported only if whole body is in a single buffer |
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|
562 */ |
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diff
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|
563 |
962
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diff
changeset
|
564 if (ngx_buf_special(in->buf)) { |
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diff
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|
565 return ngx_http_next_body_filter(r, in); |
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diff
changeset
|
566 } |
69754fb59ba1
support ranges for single memory buffer
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diff
changeset
|
567 |
2118
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2049
diff
changeset
|
568 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
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split ngx_http_range_filter_module
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parents:
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diff
changeset
|
569 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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diff
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|
570 } |
c1f589732d8c
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diff
changeset
|
571 |
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split ngx_http_range_filter_module
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diff
changeset
|
572 return ngx_http_range_multipart_body(r, ctx, in); |
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split ngx_http_range_filter_module
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|
573 } |
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split ngx_http_range_filter_module
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diff
changeset
|
574 |
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split ngx_http_range_filter_module
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diff
changeset
|
575 |
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diff
changeset
|
576 static ngx_int_t |
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diff
changeset
|
577 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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diff
changeset
|
578 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
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|
579 { |
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split ngx_http_range_filter_module
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diff
changeset
|
580 off_t start, last; |
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diff
changeset
|
581 ngx_buf_t *buf; |
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split ngx_http_range_filter_module
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parents:
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diff
changeset
|
582 ngx_uint_t i; |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
583 ngx_http_range_t *range; |
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split ngx_http_range_filter_module
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diff
changeset
|
584 |
962
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changeset
|
585 if (ctx->offset) { |
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support ranges for single memory buffer
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diff
changeset
|
586 goto overlapped; |
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support ranges for single memory buffer
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diff
changeset
|
587 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
588 |
2118
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diff
changeset
|
589 buf = in->buf; |
960 | 590 |
591 if (!buf->last_buf) { | |
962
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diff
changeset
|
592 |
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support ranges for single memory buffer
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diff
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|
593 if (buf->in_file) { |
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diff
changeset
|
594 start = buf->file_pos + ctx->offset; |
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diff
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|
595 last = buf->file_last + ctx->offset; |
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|
596 |
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support ranges for single memory buffer
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|
597 } else { |
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|
598 start = buf->pos - buf->start + ctx->offset; |
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diff
changeset
|
599 last = buf->last - buf->start + ctx->offset; |
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changeset
|
600 } |
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support ranges for single memory buffer
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diff
changeset
|
601 |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
602 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
|
603 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
69754fb59ba1
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parents:
961
diff
changeset
|
604 if (start > range[i].start || last < range[i].end) { |
960 | 605 goto overlapped; |
606 } | |
607 } | |
608 } | |
609 | |
962
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parents:
961
diff
changeset
|
610 ctx->offset = ngx_buf_size(buf); |
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parents:
961
diff
changeset
|
611 |
2118
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changeset
|
612 return NGX_OK; |
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diff
changeset
|
613 |
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diff
changeset
|
614 overlapped: |
960 | 615 |
2118
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changeset
|
616 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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changeset
|
617 "range in overlapped buffers"); |
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|
618 |
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diff
changeset
|
619 return NGX_ERROR; |
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|
620 } |
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diff
changeset
|
621 |
962
69754fb59ba1
support ranges for single memory buffer
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diff
changeset
|
622 |
2118
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parents:
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diff
changeset
|
623 static ngx_int_t |
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diff
changeset
|
624 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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diff
changeset
|
625 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
changeset
|
626 { |
2121
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support several buf's for single-part range
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diff
changeset
|
627 off_t start, last; |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
628 ngx_buf_t *buf; |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
629 ngx_chain_t *out, *cl, **ll; |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
630 ngx_http_range_t *range; |
960 | 631 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
632 out = NULL; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
633 ll = &out; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
634 range = ctx->ranges.elts; |
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diff
changeset
|
635 |
2121
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
636 for (cl = in; cl; cl = cl->next) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
637 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
638 buf = cl->buf; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
639 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
640 start = ctx->offset; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
641 last = ctx->offset + ngx_buf_size(buf); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
642 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
643 ctx->offset = last; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
644 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
645 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
|
646 "http range body buf: %O-%O", start, last); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
647 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
648 if (ngx_buf_special(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
649 *ll = cl; |
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support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
650 ll = &cl->next; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
651 continue; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
652 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
653 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
654 if (range->end <= start || range->start >= last) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
655 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
656 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
657 "http range body skip"); |
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support several buf's for single-part range
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diff
changeset
|
658 |
2269 | 659 if (buf->in_file) { |
660 buf->file_pos = buf->file_last; | |
661 } | |
662 | |
2121
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support several buf's for single-part range
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diff
changeset
|
663 buf->pos = buf->last; |
2269 | 664 buf->sync = 1; |
665 | |
2121
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support several buf's for single-part range
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diff
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|
666 continue; |
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support several buf's for single-part range
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diff
changeset
|
667 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
668 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
669 if (range->start > start) { |
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
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diff
changeset
|
671 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
672 buf->file_pos += range->start - start; |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
673 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
674 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
675 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
676 buf->pos += (size_t) (range->start - start); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
677 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
678 } |
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 if (range->end <= last) { |
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 (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
683 buf->file_last -= last - range->end; |
b39c0040b3e4
support several buf's for single-part range
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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 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
686 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
687 buf->last -= (size_t) (last - range->end); |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
688 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
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689 |
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690 buf->last_buf = 1; |
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691 *ll = cl; |
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692 cl->next = NULL; |
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693 |
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694 break; |
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695 } |
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696 |
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697 *ll = cl; |
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698 ll = &cl->next; |
960 | 699 } |
700 | |
2121
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701 if (out == NULL) { |
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702 return NGX_OK; |
2118
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703 } |
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704 |
2121
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705 return ngx_http_next_body_filter(r, out); |
2118
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706 } |
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707 |
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708 |
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709 static ngx_int_t |
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710 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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711 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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712 { |
2592
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713 off_t body_start; |
2118
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714 ngx_buf_t *b, *buf; |
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715 ngx_uint_t i; |
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716 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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717 ngx_http_range_t *range; |
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718 |
960 | 719 ll = &out; |
2118
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720 buf = in->buf; |
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721 range = ctx->ranges.elts; |
160
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722 |
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723 #if (NGX_HTTP_CACHE) |
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724 body_start = r->cached ? r->cache->body_start : 0; |
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725 #else |
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726 body_start = 0; |
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727 #endif |
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728 |
963
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|
729 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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|
730 |
960 | 731 /* |
732 * The boundary header of the range: | |
733 * CRLF | |
734 * "--0123456789" CRLF | |
735 * "Content-Type: image/jpeg" CRLF | |
736 * "Content-Range: bytes " | |
737 */ | |
738 | |
739 b = ngx_calloc_buf(r->pool); | |
740 if (b == NULL) { | |
741 return NGX_ERROR; | |
99
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742 } |
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743 |
960 | 744 b->memory = 1; |
745 b->pos = ctx->boundary_header.data; | |
746 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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747 |
960 | 748 hcl = ngx_alloc_chain_link(r->pool); |
749 if (hcl == NULL) { | |
750 return NGX_ERROR; | |
751 } | |
461 | 752 |
960 | 753 hcl->buf = b; |
99
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754 |
461 | 755 |
960 | 756 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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757 |
501 | 758 b = ngx_calloc_buf(r->pool); |
759 if (b == NULL) { | |
461 | 760 return NGX_ERROR; |
761 } | |
762 | |
343
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763 b->temporary = 1; |
960 | 764 b->pos = range[i].content_range.data; |
765 b->last = range[i].content_range.data + range[i].content_range.len; | |
766 | |
767 rcl = ngx_alloc_chain_link(r->pool); | |
768 if (rcl == NULL) { | |
769 return NGX_ERROR; | |
770 } | |
771 | |
772 rcl->buf = b; | |
773 | |
774 | |
775 /* the range data */ | |
461 | 776 |
960 | 777 b = ngx_calloc_buf(r->pool); |
778 if (b == NULL) { | |
779 return NGX_ERROR; | |
780 } | |
781 | |
962
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|
782 b->in_file = buf->in_file; |
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783 b->temporary = buf->temporary; |
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|
784 b->memory = buf->memory; |
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|
785 b->mmap = buf->mmap; |
960 | 786 b->file = buf->file; |
787 | |
962
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|
788 if (buf->in_file) { |
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|
789 b->file_pos = body_start + range[i].start; |
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|
790 b->file_last = body_start + range[i].end; |
962
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|
791 } |
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|
792 |
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diff
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|
793 if (ngx_buf_in_memory(buf)) { |
1093 | 794 b->pos = buf->start + (size_t) range[i].start; |
795 b->last = buf->start + (size_t) range[i].end; | |
962
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|
796 } |
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|
797 |
960 | 798 dcl = ngx_alloc_chain_link(r->pool); |
799 if (dcl == NULL) { | |
461 | 800 return NGX_ERROR; |
801 } | |
802 | |
960 | 803 dcl->buf = b; |
461 | 804 |
155
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|
805 *ll = hcl; |
960 | 806 hcl->next = rcl; |
807 rcl->next = dcl; | |
808 ll = &dcl->next; | |
809 } | |
99
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|
810 |
960 | 811 /* the last boundary CRLF "--0123456789--" CRLF */ |
812 | |
813 b = ngx_calloc_buf(r->pool); | |
814 if (b == NULL) { | |
815 return NGX_ERROR; | |
816 } | |
817 | |
818 b->temporary = 1; | |
819 b->last_buf = 1; | |
820 | |
2049 | 821 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
822 + sizeof("--" CRLF) - 1); | |
960 | 823 if (b->pos == NULL) { |
824 return NGX_ERROR; | |
99
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|
825 } |
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|
826 |
1195
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diff
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|
827 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
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|
828 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 829 *b->last++ = '-'; *b->last++ = '-'; |
830 *b->last++ = CR; *b->last++ = LF; | |
831 | |
832 hcl = ngx_alloc_chain_link(r->pool); | |
833 if (hcl == NULL) { | |
834 return NGX_ERROR; | |
835 } | |
836 | |
837 hcl->buf = b; | |
838 hcl->next = NULL; | |
99
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|
839 |
960 | 840 *ll = hcl; |
841 | |
842 return ngx_http_next_body_filter(r, out); | |
99
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|
843 } |
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|
844 |
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|
845 |
493 | 846 static ngx_int_t |
681 | 847 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
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|
848 { |
155
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|
849 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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|
850 ngx_http_top_header_filter = ngx_http_range_header_filter; |
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|
851 |
334
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|
852 return NGX_OK; |
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|
853 } |
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|
854 |
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diff
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|
855 |
493 | 856 static ngx_int_t |
681 | 857 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
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|
858 { |
155
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|
859 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
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changeset
|
860 ngx_http_top_body_filter = ngx_http_range_body_filter; |
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changeset
|
861 |
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|
862 return NGX_OK; |
a059e1aa65d4
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diff
changeset
|
863 } |