Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 4741:5ea8c710c532
Fixed If-Range with unknown last modified time.
If modification time isn't known, skip range processing and return full
entity body instead of just ignoring If-Range. Ignoring If-Range isn't
safe as client will assume entity wasn't changed since time specified.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sat, 07 Jul 2012 21:16:21 +0000 |
parents | 85a1570ce960 |
children | 4752060ca462 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 |
160
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13 /* |
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14 * the single part format: |
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15 * |
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16 * "HTTP/1.0 206 Partial Content" CRLF |
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17 * ... header ... |
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18 * "Content-Type: image/jpeg" CRLF |
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19 * "Content-Length: SIZE" CRLF |
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20 * "Content-Range: bytes START-END/SIZE" CRLF |
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21 * CRLF |
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22 * ... data ... |
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23 * |
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24 * |
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25 * the mutlipart format: |
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26 * |
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27 * "HTTP/1.0 206 Partial Content" CRLF |
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28 * ... header ... |
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29 * "Content-Type: multipart/byteranges; boundary=0123456789" CRLF |
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30 * CRLF |
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31 * CRLF |
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32 * "--0123456789" CRLF |
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33 * "Content-Type: image/jpeg" CRLF |
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34 * "Content-Range: bytes START0-END0/SIZE" CRLF |
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35 * CRLF |
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36 * ... data ... |
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37 * CRLF |
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38 * "--0123456789" CRLF |
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39 * "Content-Type: image/jpeg" CRLF |
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40 * "Content-Range: bytes START1-END1/SIZE" CRLF |
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41 * CRLF |
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42 * ... data ... |
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43 * CRLF |
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44 * "--0123456789--" CRLF |
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45 */ |
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46 |
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47 |
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48 typedef struct { |
963
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49 off_t start; |
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50 off_t end; |
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51 ngx_str_t content_range; |
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52 } ngx_http_range_t; |
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53 |
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54 |
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55 typedef struct { |
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56 off_t offset; |
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57 ngx_str_t boundary_header; |
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58 ngx_array_t ranges; |
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59 } ngx_http_range_filter_ctx_t; |
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60 |
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61 |
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62 static ngx_int_t ngx_http_range_parse(ngx_http_request_t *r, |
4062 | 63 ngx_http_range_filter_ctx_t *ctx, ngx_uint_t ranges); |
2118
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64 static ngx_int_t ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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65 ngx_http_range_filter_ctx_t *ctx); |
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66 static ngx_int_t ngx_http_range_multipart_header(ngx_http_request_t *r, |
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67 ngx_http_range_filter_ctx_t *ctx); |
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68 static ngx_int_t ngx_http_range_not_satisfiable(ngx_http_request_t *r); |
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69 static ngx_int_t ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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70 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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71 static ngx_int_t ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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72 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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73 static ngx_int_t ngx_http_range_multipart_body(ngx_http_request_t *r, |
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74 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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75 |
681 | 76 static ngx_int_t ngx_http_range_header_filter_init(ngx_conf_t *cf); |
77 static ngx_int_t ngx_http_range_body_filter_init(ngx_conf_t *cf); | |
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78 |
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79 |
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80 static ngx_http_module_t ngx_http_range_header_filter_module_ctx = { |
509 | 81 NULL, /* preconfiguration */ |
681 | 82 ngx_http_range_header_filter_init, /* postconfiguration */ |
177
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83 |
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84 NULL, /* create main configuration */ |
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85 NULL, /* init main configuration */ |
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86 |
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87 NULL, /* create server configuration */ |
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88 NULL, /* merge server configuration */ |
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89 |
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90 NULL, /* create location configuration */ |
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91 NULL, /* merge location configuration */ |
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92 }; |
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93 |
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94 |
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95 ngx_module_t ngx_http_range_header_filter_module = { |
509 | 96 NGX_MODULE_V1, |
334
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97 &ngx_http_range_header_filter_module_ctx, /* module context */ |
99
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98 NULL, /* module directives */ |
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99 NGX_HTTP_MODULE, /* module type */ |
541 | 100 NULL, /* init master */ |
681 | 101 NULL, /* init module */ |
541 | 102 NULL, /* init process */ |
103 NULL, /* init thread */ | |
104 NULL, /* exit thread */ | |
105 NULL, /* exit process */ | |
106 NULL, /* exit master */ | |
107 NGX_MODULE_V1_PADDING | |
334
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108 }; |
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109 |
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110 |
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111 static ngx_http_module_t ngx_http_range_body_filter_module_ctx = { |
509 | 112 NULL, /* preconfiguration */ |
681 | 113 ngx_http_range_body_filter_init, /* postconfiguration */ |
334
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114 |
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115 NULL, /* create main configuration */ |
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116 NULL, /* init main configuration */ |
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314
diff
changeset
|
117 |
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nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
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|
118 NULL, /* create server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
119 NULL, /* merge server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
120 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
121 NULL, /* create location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
122 NULL, /* merge location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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|
123 }; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
124 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
125 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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126 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 127 NGX_MODULE_V1, |
334
af451db3fe99
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314
diff
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128 &ngx_http_range_body_filter_module_ctx, /* module context */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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|
129 NULL, /* module directives */ |
af451db3fe99
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130 NGX_HTTP_MODULE, /* module type */ |
541 | 131 NULL, /* init master */ |
681 | 132 NULL, /* init module */ |
541 | 133 NULL, /* init process */ |
134 NULL, /* init thread */ | |
135 NULL, /* exit thread */ | |
136 NULL, /* exit process */ | |
137 NULL, /* exit master */ | |
138 NGX_MODULE_V1_PADDING | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
139 }; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
140 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
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parents:
153
diff
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|
142 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
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parents:
153
diff
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|
143 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
144 |
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nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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|
145 |
493 | 146 static ngx_int_t |
147 ngx_http_range_header_filter(ngx_http_request_t *r) | |
99
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changeset
|
148 { |
1630 | 149 time_t if_range; |
4062 | 150 ngx_http_core_loc_conf_t *clcf; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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|
151 ngx_http_range_filter_ctx_t *ctx; |
a059e1aa65d4
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parents:
diff
changeset
|
152 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
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parents:
155
diff
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|
153 if (r->http_version < NGX_HTTP_VERSION_10 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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154 || r->headers_out.status != NGX_HTTP_OK |
3331
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backout r3325: postpone filter is a body only filter
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diff
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|
155 || r != r->main |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
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parents:
136
diff
changeset
|
156 || r->headers_out.content_length_n == -1 |
581 | 157 || !r->allow_ranges) |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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parents:
113
diff
changeset
|
158 { |
155
46eb23d9471d
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153
diff
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|
159 return ngx_http_next_header_filter(r); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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parents:
113
diff
changeset
|
160 } |
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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parents:
113
diff
changeset
|
161 |
4062 | 162 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
163 | |
164 if (clcf->max_ranges == 0) { | |
165 return ngx_http_next_header_filter(r); | |
166 } | |
167 | |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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parents:
113
diff
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|
168 if (r->headers_in.range == NULL |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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|
169 || r->headers_in.range->value.len < 7 |
1107
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ngx_strcasecmp()/ngx_strncasecmp()
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170 || ngx_strncasecmp(r->headers_in.range->value.data, |
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ngx_strcasecmp()/ngx_strncasecmp()
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diff
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|
171 (u_char *) "bytes=", 6) |
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ngx_strcasecmp()/ngx_strncasecmp()
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diff
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|
172 != 0) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
173 { |
1630 | 174 goto next_filter; |
175 } | |
176 | |
4741
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Fixed If-Range with unknown last modified time.
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diff
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|
177 if (r->headers_in.if_range) { |
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Fixed If-Range with unknown last modified time.
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|
178 |
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Fixed If-Range with unknown last modified time.
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|
179 if (r->headers_out.last_modified_time == (time_t) -1) { |
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Fixed If-Range with unknown last modified time.
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|
180 goto next_filter; |
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Fixed If-Range with unknown last modified time.
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diff
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|
181 } |
1630 | 182 |
183 if_range = ngx_http_parse_time(r->headers_in.if_range->value.data, | |
184 r->headers_in.if_range->value.len); | |
117
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113
diff
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|
185 |
1630 | 186 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
187 "http ir:%d lm:%d", | |
188 if_range, r->headers_out.last_modified_time); | |
117
f6e3c5d019b6
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parents:
113
diff
changeset
|
189 |
1630 | 190 if (if_range != r->headers_out.last_modified_time) { |
191 goto next_filter; | |
192 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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|
193 } |
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parents:
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|
194 |
963
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diff
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|
195 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
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|
196 if (ctx == NULL) { |
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197 return NGX_ERROR; |
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|
198 } |
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|
199 |
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diff
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|
200 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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|
201 != NGX_OK) |
461 | 202 { |
203 return NGX_ERROR; | |
204 } | |
99
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|
205 |
4062 | 206 switch (ngx_http_range_parse(r, ctx, clcf->max_ranges)) { |
2118
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|
207 |
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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|
208 case NGX_OK: |
2118
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|
209 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
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210 |
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|
211 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
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a prelimiary proxy cache support
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2536
diff
changeset
|
212 r->headers_out.status_line.len = 0; |
2118
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|
213 |
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214 if (ctx->ranges.nelts == 1) { |
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215 return ngx_http_range_singlepart_header(r, ctx); |
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|
216 } |
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|
217 |
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|
218 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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|
219 |
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Now if total size of all ranges is greater than source response size,
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|
220 case NGX_HTTP_RANGE_NOT_SATISFIABLE: |
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Now if total size of all ranges is greater than source response size,
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|
221 return ngx_http_range_not_satisfiable(r); |
2118
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|
222 |
4035
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Now if total size of all ranges is greater than source response size,
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|
223 case NGX_ERROR: |
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|
224 return NGX_ERROR; |
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Now if total size of all ranges is greater than source response size,
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|
225 |
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Now if total size of all ranges is greater than source response size,
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|
226 default: /* NGX_DECLINED */ |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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|
227 break; |
2118
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|
228 } |
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|
229 |
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|
230 next_filter: |
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changeset
|
231 |
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|
232 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
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|
233 if (r->headers_out.accept_ranges == NULL) { |
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|
234 return NGX_ERROR; |
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changeset
|
235 } |
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diff
changeset
|
236 |
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changeset
|
237 r->headers_out.accept_ranges->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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3331
diff
changeset
|
238 ngx_str_set(&r->headers_out.accept_ranges->key, "Accept-Ranges"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
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3331
diff
changeset
|
239 ngx_str_set(&r->headers_out.accept_ranges->value, "bytes"); |
2118
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|
240 |
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|
241 return ngx_http_next_header_filter(r); |
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|
242 } |
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|
243 |
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changeset
|
244 |
4058
d32a2000b766
ngx_http_range_parse() should be static.
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parents:
4057
diff
changeset
|
245 static ngx_int_t |
4062 | 246 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx, |
247 ngx_uint_t ranges) | |
2118
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|
248 { |
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|
249 u_char *p; |
4057
3205a6d6c6ec
Ranges processing small optimization.
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diff
changeset
|
250 off_t start, end, size, content_length; |
2118
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|
251 ngx_uint_t suffix; |
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|
252 ngx_http_range_t *range; |
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changeset
|
253 |
99
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parents:
diff
changeset
|
254 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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diff
changeset
|
255 size = 0; |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
256 content_length = r->headers_out.content_length_n; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
257 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
258 for ( ;; ) { |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
259 start = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
260 end = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
261 suffix = 0; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
262 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
263 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
264 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
265 if (*p != '-') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
266 if (*p < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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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 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
269 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
270 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
|
271 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
|
272 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
273 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
274 while (*p == ' ') { p++; } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
275 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
276 if (*p++ != '-') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
277 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
|
278 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
279 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
280 while (*p == ' ') { p++; } |
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 == ',' || *p == '\0') { |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
283 end = content_length; |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
284 goto found; |
99
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 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
287 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
288 suffix = 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
289 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
290 } |
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 < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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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 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
296 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
|
297 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
|
298 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
299 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
300 while (*p == ' ') { p++; } |
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 if (*p != ',' && *p != '\0') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
303 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
|
304 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
305 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
306 if (suffix) { |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
307 start = content_length - end; |
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
308 end = content_length - 1; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
309 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
310 |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
311 if (end >= content_length) { |
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
312 end = content_length; |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
313 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
314 } else { |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
315 end++; |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
316 } |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
317 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
318 found: |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
319 |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
320 if (start < end) { |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
321 range = ngx_array_push(&ctx->ranges); |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
322 if (range == NULL) { |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
323 return NGX_ERROR; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
324 } |
461 | 325 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
326 range->start = start; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
327 range->end = end; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
328 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
329 size += end - start; |
4062 | 330 |
4063
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
Igor Sysoev <igor@sysoev.ru>
parents:
4062
diff
changeset
|
331 if (ranges-- == 0) { |
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
Igor Sysoev <igor@sysoev.ru>
parents:
4062
diff
changeset
|
332 return NGX_DECLINED; |
4062 | 333 } |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
334 } |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
335 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
336 if (*p++ != ',') { |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
337 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
338 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 } |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
340 |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
341 if (ctx->ranges.nelts == 0) { |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
342 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
|
343 } |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
344 |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
345 if (size > content_length) { |
4035
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_DECLINED; |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
347 } |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
348 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
349 return NGX_OK; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
350 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
351 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
352 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
353 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
354 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
|
355 ngx_http_range_filter_ctx_t *ctx) |
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 ngx_table_elt_t *content_range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
358 ngx_http_range_t *range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
359 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
360 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
|
361 if (content_range == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
362 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
363 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
364 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
365 r->headers_out.content_range = content_range; |
461 | 366 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
367 content_range->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3331
diff
changeset
|
368 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
|
369 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
370 content_range->value.data = ngx_pnalloc(r->pool, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
371 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
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372 if (content_range->value.data == NULL) { |
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373 return NGX_ERROR; |
461 | 374 } |
375 | |
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376 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 377 |
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378 range = ctx->ranges.elts; |
461 | 379 |
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380 content_range->value.len = ngx_sprintf(content_range->value.data, |
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381 "bytes %O-%O/%O", |
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382 range->start, range->end - 1, |
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383 r->headers_out.content_length_n) |
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384 - content_range->value.data; |
461 | 385 |
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386 r->headers_out.content_length_n = range->end - range->start; |
461 | 387 |
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388 if (r->headers_out.content_length) { |
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389 r->headers_out.content_length->hash = 0; |
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390 r->headers_out.content_length = NULL; |
461 | 391 } |
392 | |
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393 return ngx_http_next_header_filter(r); |
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394 } |
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395 |
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396 |
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397 static ngx_int_t |
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398 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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399 ngx_http_range_filter_ctx_t *ctx) |
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400 { |
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401 size_t len; |
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402 ngx_uint_t i; |
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403 ngx_http_range_t *range; |
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404 ngx_atomic_uint_t boundary; |
461 | 405 |
493 | 406 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
407 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 408 + r->headers_out.content_type.len |
461 | 409 + sizeof(CRLF "Content-Range: bytes ") - 1; |
410 | |
411 if (r->headers_out.charset.len) { | |
412 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
413 } | |
414 | |
2049 | 415 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 416 if (ctx->boundary_header.data == NULL) { |
461 | 417 return NGX_ERROR; |
418 } | |
419 | |
493 | 420 boundary = ngx_next_temp_number(0); |
461 | 421 |
422 /* | |
423 * The boundary header of the range: | |
424 * CRLF | |
425 * "--0123456789" CRLF | |
426 * "Content-Type: image/jpeg" CRLF | |
427 * "Content-Range: bytes " | |
428 */ | |
429 | |
430 if (r->headers_out.charset.len) { | |
431 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 432 CRLF "--%0muA" CRLF |
461 | 433 "Content-Type: %V; charset=%V" CRLF |
434 "Content-Range: bytes ", | |
435 boundary, | |
509 | 436 &r->headers_out.content_type, |
461 | 437 &r->headers_out.charset) |
438 - ctx->boundary_header.data; | |
439 | |
440 r->headers_out.charset.len = 0; | |
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441 |
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442 } else if (r->headers_out.content_type.len) { |
461 | 443 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 444 CRLF "--%0muA" CRLF |
461 | 445 "Content-Type: %V" CRLF |
446 "Content-Range: bytes ", | |
447 boundary, | |
509 | 448 &r->headers_out.content_type) |
461 | 449 - ctx->boundary_header.data; |
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450 |
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451 } else { |
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452 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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453 CRLF "--%0muA" CRLF |
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454 "Content-Range: bytes ", |
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455 boundary) |
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456 - ctx->boundary_header.data; |
461 | 457 } |
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458 |
509 | 459 r->headers_out.content_type.data = |
2049 | 460 ngx_pnalloc(r->pool, |
461 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
462 + NGX_ATOMIC_T_LEN); | |
165
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463 |
509 | 464 if (r->headers_out.content_type.data == NULL) { |
461 | 465 return NGX_ERROR; |
466 } | |
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467 |
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468 r->headers_out.content_type_lowcase = NULL; |
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469 |
461 | 470 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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471 |
509 | 472 r->headers_out.content_type.len = |
473 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 474 "multipart/byteranges; boundary=%0muA", |
461 | 475 boundary) |
509 | 476 - r->headers_out.content_type.data; |
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477 |
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478 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 479 |
461 | 480 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 481 |
482 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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483 |
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484 range = ctx->ranges.elts; |
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485 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 486 |
461 | 487 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 488 |
461 | 489 range[i].content_range.data = |
2049 | 490 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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491 |
461 | 492 if (range[i].content_range.data == NULL) { |
493 return NGX_ERROR; | |
494 } | |
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495 |
461 | 496 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
497 "%O-%O/%O" CRLF CRLF, | |
498 range[i].start, range[i].end - 1, | |
499 r->headers_out.content_length_n) | |
500 - range[i].content_range.data; | |
160
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501 |
461 | 502 len += ctx->boundary_header.len + range[i].content_range.len |
503 + (size_t) (range[i].end - range[i].start); | |
504 } | |
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505 |
461 | 506 r->headers_out.content_length_n = len; |
960 | 507 |
508 if (r->headers_out.content_length) { | |
509 r->headers_out.content_length->hash = 0; | |
510 r->headers_out.content_length = NULL; | |
511 } | |
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512 |
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513 return ngx_http_next_header_filter(r); |
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514 } |
1630 | 515 |
516 | |
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517 static ngx_int_t |
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518 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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519 { |
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520 ngx_table_elt_t *content_range; |
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521 |
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522 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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523 |
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524 content_range = ngx_list_push(&r->headers_out.headers); |
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525 if (content_range == NULL) { |
1630 | 526 return NGX_ERROR; |
527 } | |
528 | |
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529 r->headers_out.content_range = content_range; |
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530 |
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531 content_range->hash = 1; |
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532 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 533 |
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534 content_range->value.data = ngx_pnalloc(r->pool, |
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535 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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536 if (content_range->value.data == NULL) { |
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537 return NGX_ERROR; |
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538 } |
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539 |
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540 content_range->value.len = ngx_sprintf(content_range->value.data, |
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541 "bytes */%O", |
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542 r->headers_out.content_length_n) |
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543 - content_range->value.data; |
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544 |
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545 ngx_http_clear_content_length(r); |
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546 |
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547 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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548 } |
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549 |
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550 |
493 | 551 static ngx_int_t |
552 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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553 { |
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554 ngx_http_range_filter_ctx_t *ctx; |
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555 |
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556 if (in == NULL) { |
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557 return ngx_http_next_body_filter(r, in); |
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558 } |
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559 |
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560 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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561 |
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562 if (ctx == NULL) { |
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nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
563 return ngx_http_next_body_filter(r, in); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
564 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
565 |
2121
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support several buf's for single-part range
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parents:
2119
diff
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|
566 if (ctx->ranges.nelts == 1) { |
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support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
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|
567 return ngx_http_range_singlepart_body(r, ctx, in); |
b39c0040b3e4
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diff
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|
568 } |
b39c0040b3e4
support several buf's for single-part range
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parents:
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diff
changeset
|
569 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
570 /* |
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support several buf's for single-part range
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2119
diff
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|
571 * multipart ranges are supported only if whole body is in a single buffer |
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diff
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|
572 */ |
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support several buf's for single-part range
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parents:
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diff
changeset
|
573 |
962
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961
diff
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|
574 if (ngx_buf_special(in->buf)) { |
69754fb59ba1
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diff
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|
575 return ngx_http_next_body_filter(r, in); |
69754fb59ba1
support ranges for single memory buffer
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|
576 } |
69754fb59ba1
support ranges for single memory buffer
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diff
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|
577 |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
578 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
579 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
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|
580 } |
c1f589732d8c
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
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
582 return ngx_http_range_multipart_body(r, ctx, in); |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
583 } |
c1f589732d8c
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parents:
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diff
changeset
|
584 |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
585 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
586 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
587 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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diff
changeset
|
588 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
589 { |
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diff
changeset
|
590 off_t start, last; |
c1f589732d8c
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diff
changeset
|
591 ngx_buf_t *buf; |
c1f589732d8c
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diff
changeset
|
592 ngx_uint_t i; |
c1f589732d8c
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diff
changeset
|
593 ngx_http_range_t *range; |
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diff
changeset
|
594 |
962
69754fb59ba1
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961
diff
changeset
|
595 if (ctx->offset) { |
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support ranges for single memory buffer
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diff
changeset
|
596 goto overlapped; |
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diff
changeset
|
597 } |
69754fb59ba1
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diff
changeset
|
598 |
2118
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diff
changeset
|
599 buf = in->buf; |
960 | 600 |
601 if (!buf->last_buf) { | |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
602 start = ctx->offset; |
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
603 last = ctx->offset + ngx_buf_size(buf); |
962
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
604 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
605 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
|
606 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
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support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
607 if (start > range[i].start || last < range[i].end) { |
960 | 608 goto overlapped; |
609 } | |
610 } | |
611 } | |
612 | |
962
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support ranges for single memory buffer
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parents:
961
diff
changeset
|
613 ctx->offset = ngx_buf_size(buf); |
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
614 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
615 return NGX_OK; |
c1f589732d8c
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diff
changeset
|
616 |
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split ngx_http_range_filter_module
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diff
changeset
|
617 overlapped: |
960 | 618 |
2118
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diff
changeset
|
619 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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split ngx_http_range_filter_module
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changeset
|
620 "range in overlapped buffers"); |
c1f589732d8c
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changeset
|
621 |
c1f589732d8c
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changeset
|
622 return NGX_ERROR; |
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split ngx_http_range_filter_module
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changeset
|
623 } |
c1f589732d8c
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diff
changeset
|
624 |
962
69754fb59ba1
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diff
changeset
|
625 |
2118
c1f589732d8c
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parents:
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diff
changeset
|
626 static ngx_int_t |
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diff
changeset
|
627 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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diff
changeset
|
628 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
changeset
|
629 { |
2121
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2119
diff
changeset
|
630 off_t start, last; |
2118
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diff
changeset
|
631 ngx_buf_t *buf; |
2121
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parents:
2119
diff
changeset
|
632 ngx_chain_t *out, *cl, **ll; |
2118
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split ngx_http_range_filter_module
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parents:
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diff
changeset
|
633 ngx_http_range_t *range; |
960 | 634 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
635 out = NULL; |
b39c0040b3e4
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parents:
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diff
changeset
|
636 ll = &out; |
2118
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split ngx_http_range_filter_module
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diff
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|
637 range = ctx->ranges.elts; |
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diff
changeset
|
638 |
2121
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support several buf's for single-part range
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2119
diff
changeset
|
639 for (cl = in; cl; cl = cl->next) { |
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diff
changeset
|
640 |
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|
641 buf = cl->buf; |
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support several buf's for single-part range
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diff
changeset
|
642 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
643 start = ctx->offset; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
644 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
|
645 |
b39c0040b3e4
support several buf's for single-part range
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diff
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|
646 ctx->offset = last; |
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support several buf's for single-part range
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diff
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|
647 |
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changeset
|
648 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
|
649 "http range body buf: %O-%O", start, last); |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
650 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
651 if (ngx_buf_special(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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|
652 *ll = cl; |
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support several buf's for single-part range
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|
653 ll = &cl->next; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
654 continue; |
b39c0040b3e4
support several buf's for single-part range
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parents:
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|
655 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
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|
656 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
657 if (range->end <= start || range->start >= last) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
658 |
b39c0040b3e4
support several buf's for single-part range
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|
659 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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diff
changeset
|
660 "http range body skip"); |
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support several buf's for single-part range
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diff
changeset
|
661 |
2269 | 662 if (buf->in_file) { |
663 buf->file_pos = buf->file_last; | |
664 } | |
665 | |
2121
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support several buf's for single-part range
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diff
changeset
|
666 buf->pos = buf->last; |
2269 | 667 buf->sync = 1; |
668 | |
2121
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|
669 continue; |
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support several buf's for single-part range
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|
670 } |
b39c0040b3e4
support several buf's for single-part range
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diff
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|
671 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
672 if (range->start > start) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
673 |
b39c0040b3e4
support several buf's for single-part range
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changeset
|
674 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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changeset
|
675 buf->file_pos += range->start - start; |
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support several buf's for single-part range
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2119
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|
676 } |
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
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diff
changeset
|
678 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
679 buf->pos += (size_t) (range->start - start); |
b39c0040b3e4
support several buf's for single-part range
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changeset
|
680 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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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 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
683 if (range->end <= last) { |
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
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diff
changeset
|
685 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
686 buf->file_last -= last - range->end; |
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support several buf's for single-part range
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diff
changeset
|
687 } |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
688 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
689 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
690 buf->last -= (size_t) (last - range->end); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
691 } |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
692 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
693 buf->last_buf = 1; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
694 *ll = cl; |
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695 cl->next = NULL; |
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696 |
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697 break; |
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698 } |
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699 |
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700 *ll = cl; |
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701 ll = &cl->next; |
960 | 702 } |
703 | |
2121
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704 if (out == NULL) { |
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705 return NGX_OK; |
2118
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706 } |
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707 |
2121
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708 return ngx_http_next_body_filter(r, out); |
2118
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709 } |
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710 |
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711 |
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712 static ngx_int_t |
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713 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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714 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
715 { |
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716 ngx_buf_t *b, *buf; |
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717 ngx_uint_t i; |
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718 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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719 ngx_http_range_t *range; |
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|
720 |
960 | 721 ll = &out; |
2118
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722 buf = in->buf; |
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723 range = ctx->ranges.elts; |
160
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724 |
963
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725 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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726 |
960 | 727 /* |
728 * The boundary header of the range: | |
729 * CRLF | |
730 * "--0123456789" CRLF | |
731 * "Content-Type: image/jpeg" CRLF | |
732 * "Content-Range: bytes " | |
733 */ | |
734 | |
735 b = ngx_calloc_buf(r->pool); | |
736 if (b == NULL) { | |
737 return NGX_ERROR; | |
99
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738 } |
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739 |
960 | 740 b->memory = 1; |
741 b->pos = ctx->boundary_header.data; | |
742 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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743 |
960 | 744 hcl = ngx_alloc_chain_link(r->pool); |
745 if (hcl == NULL) { | |
746 return NGX_ERROR; | |
747 } | |
461 | 748 |
960 | 749 hcl->buf = b; |
99
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750 |
461 | 751 |
960 | 752 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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753 |
501 | 754 b = ngx_calloc_buf(r->pool); |
755 if (b == NULL) { | |
461 | 756 return NGX_ERROR; |
757 } | |
758 | |
343
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759 b->temporary = 1; |
960 | 760 b->pos = range[i].content_range.data; |
761 b->last = range[i].content_range.data + range[i].content_range.len; | |
762 | |
763 rcl = ngx_alloc_chain_link(r->pool); | |
764 if (rcl == NULL) { | |
765 return NGX_ERROR; | |
766 } | |
767 | |
768 rcl->buf = b; | |
769 | |
770 | |
771 /* the range data */ | |
461 | 772 |
960 | 773 b = ngx_calloc_buf(r->pool); |
774 if (b == NULL) { | |
775 return NGX_ERROR; | |
776 } | |
777 | |
962
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778 b->in_file = buf->in_file; |
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779 b->temporary = buf->temporary; |
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780 b->memory = buf->memory; |
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781 b->mmap = buf->mmap; |
960 | 782 b->file = buf->file; |
783 | |
962
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784 if (buf->in_file) { |
4467
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|
785 b->file_pos = buf->file_pos + range[i].start; |
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|
786 b->file_last = buf->file_pos + range[i].end; |
962
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|
787 } |
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788 |
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|
789 if (ngx_buf_in_memory(buf)) { |
4467
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|
790 b->pos = buf->pos + (size_t) range[i].start; |
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|
791 b->last = buf->pos + (size_t) range[i].end; |
962
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|
792 } |
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793 |
960 | 794 dcl = ngx_alloc_chain_link(r->pool); |
795 if (dcl == NULL) { | |
461 | 796 return NGX_ERROR; |
797 } | |
798 | |
960 | 799 dcl->buf = b; |
461 | 800 |
155
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801 *ll = hcl; |
960 | 802 hcl->next = rcl; |
803 rcl->next = dcl; | |
804 ll = &dcl->next; | |
805 } | |
99
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|
806 |
960 | 807 /* the last boundary CRLF "--0123456789--" CRLF */ |
808 | |
809 b = ngx_calloc_buf(r->pool); | |
810 if (b == NULL) { | |
811 return NGX_ERROR; | |
812 } | |
813 | |
814 b->temporary = 1; | |
815 b->last_buf = 1; | |
816 | |
2049 | 817 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
818 + sizeof("--" CRLF) - 1); | |
960 | 819 if (b->pos == NULL) { |
820 return NGX_ERROR; | |
99
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|
821 } |
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|
822 |
1195
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diff
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|
823 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
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|
824 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 825 *b->last++ = '-'; *b->last++ = '-'; |
826 *b->last++ = CR; *b->last++ = LF; | |
827 | |
828 hcl = ngx_alloc_chain_link(r->pool); | |
829 if (hcl == NULL) { | |
830 return NGX_ERROR; | |
831 } | |
832 | |
833 hcl->buf = b; | |
834 hcl->next = NULL; | |
99
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|
835 |
960 | 836 *ll = hcl; |
837 | |
838 return ngx_http_next_body_filter(r, out); | |
99
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|
839 } |
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|
840 |
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|
841 |
493 | 842 static ngx_int_t |
681 | 843 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
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|
844 { |
155
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|
845 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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|
846 ngx_http_top_header_filter = ngx_http_range_header_filter; |
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|
847 |
334
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|
848 return NGX_OK; |
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|
849 } |
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|
850 |
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|
851 |
493 | 852 static ngx_int_t |
681 | 853 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
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|
854 { |
155
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|
855 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
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|
856 ngx_http_top_body_filter = ngx_http_range_body_filter; |
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changeset
|
857 |
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changeset
|
858 return NGX_OK; |
a059e1aa65d4
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diff
changeset
|
859 } |