Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 4253:6efec8b1ff52 stable-1.0
Merging r4193, r4194:
Autoindex fixes:
*) Autoindex: escape '?' in file names.
For files with '?' in their names autoindex generated links with '?' not
escaped. This resulted in effectively truncated links as '?' indicates
query string start.
This is an updated version of the patch originally posted at [1]. It
introduces generic NGX_ESCAPE_URI_COMPONENT which escapes everything but
unreserved characters as per RFC 3986. This approach also renders unneeded
special colon processing (as colon is percent-encoded now), it's dropped
accordingly.
[1] http://nginx.org/pipermail/nginx-devel/2010-February/000112.html
*) Autoindex: escape html in file names.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 01 Nov 2011 14:09:15 +0000 |
parents | fb1375e8b68c |
children | 4919fb357a5d |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
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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 { |
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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 static ngx_int_t ngx_http_range_parse(ngx_http_request_t *r, |
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62 ngx_http_range_filter_ctx_t *ctx, ngx_uint_t ranges); |
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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 | |
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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 */ |
334
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Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
113 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
114 NULL, /* create main configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
115 NULL, /* init main configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
116 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
117 NULL, /* create server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
118 NULL, /* merge server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
119 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
120 NULL, /* create location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
121 NULL, /* merge location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
122 }; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
123 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
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 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 126 NGX_MODULE_V1, |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
127 &ngx_http_range_body_filter_module_ctx, /* module context */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
128 NULL, /* module directives */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
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
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 }; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
141 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
142 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
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
143 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 |
493 | 145 static ngx_int_t |
146 ngx_http_range_header_filter(ngx_http_request_t *r) | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 { |
1630 | 148 time_t if_range; |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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3516
diff
changeset
|
149 ngx_http_core_loc_conf_t *clcf; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
150 ngx_http_range_filter_ctx_t *ctx; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
151 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
152 if (r->http_version < NGX_HTTP_VERSION_10 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
153 || r->headers_out.status != NGX_HTTP_OK |
3331
e0bc43a52382
backout r3325: postpone filter is a body only filter
Igor Sysoev <igor@sysoev.ru>
parents:
3324
diff
changeset
|
154 || r != r->main |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
155 || r->headers_out.content_length_n == -1 |
581 | 156 || !r->allow_ranges) |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
157 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
158 return ngx_http_next_header_filter(r); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
159 } |
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
160 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
3516
diff
changeset
|
161 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
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diff
changeset
|
162 |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
3516
diff
changeset
|
163 if (clcf->max_ranges == 0) { |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
3516
diff
changeset
|
164 return ngx_http_next_header_filter(r); |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
165 } |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
166 |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
167 if (r->headers_in.range == NULL |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
168 || r->headers_in.range->value.len < 7 |
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
169 || ngx_strncasecmp(r->headers_in.range->value.data, |
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
170 (u_char *) "bytes=", 6) |
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
171 != 0) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
172 { |
1630 | 173 goto next_filter; |
174 } | |
175 | |
176 if (r->headers_in.if_range && r->headers_out.last_modified_time != -1) { | |
177 | |
178 if_range = ngx_http_parse_time(r->headers_in.if_range->value.data, | |
179 r->headers_in.if_range->value.len); | |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
180 |
1630 | 181 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
182 "http ir:%d lm:%d", | |
183 if_range, r->headers_out.last_modified_time); | |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
184 |
1630 | 185 if (if_range != r->headers_out.last_modified_time) { |
186 goto next_filter; | |
187 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
190 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
191 if (ctx == NULL) { |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
192 return NGX_ERROR; |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
193 } |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
194 |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
195 if (ngx_array_init(&ctx->ranges, r->pool, 1, sizeof(ngx_http_range_t)) |
2536
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
Igor Sysoev <igor@sysoev.ru>
parents:
2269
diff
changeset
|
196 != NGX_OK) |
461 | 197 { |
198 return NGX_ERROR; | |
199 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
201 switch (ngx_http_range_parse(r, ctx, clcf->max_ranges)) { |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
202 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
203 case NGX_OK: |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
204 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
205 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
206 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
3a8a53c0c42f
a prelimiary proxy cache support
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
207 r->headers_out.status_line.len = 0; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
208 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
209 if (ctx->ranges.nelts == 1) { |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
210 return ngx_http_range_singlepart_header(r, ctx); |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
211 } |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
212 |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
213 return ngx_http_range_multipart_header(r, ctx); |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
214 |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
215 case NGX_HTTP_RANGE_NOT_SATISFIABLE: |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
216 return ngx_http_range_not_satisfiable(r); |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
217 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
218 case NGX_ERROR: |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
219 return NGX_ERROR; |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
220 |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
221 default: /* NGX_DECLINED */ |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
222 break; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
223 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
224 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
225 next_filter: |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
226 |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
227 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
228 if (r->headers_out.accept_ranges == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
229 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
230 } |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
231 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
232 r->headers_out.accept_ranges->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3331
diff
changeset
|
233 ngx_str_set(&r->headers_out.accept_ranges->key, "Accept-Ranges"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3331
diff
changeset
|
234 ngx_str_set(&r->headers_out.accept_ranges->value, "bytes"); |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
235 |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
236 return ngx_http_next_header_filter(r); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
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|
237 } |
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|
238 |
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diff
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|
239 |
4162
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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|
240 static ngx_int_t |
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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241 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx, |
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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|
242 ngx_uint_t ranges) |
2118
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|
243 { |
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|
244 u_char *p; |
4162
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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|
245 off_t start, end, size, content_length; |
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|
246 ngx_uint_t suffix; |
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|
247 ngx_http_range_t *range; |
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|
248 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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|
249 p = r->headers_in.range->value.data + 6; |
4162
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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250 size = 0; |
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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251 content_length = r->headers_out.content_length_n; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
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|
252 |
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nginx-0.0.1-2003-06-02-19:24:30 import
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|
253 for ( ;; ) { |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
254 start = 0; |
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195
diff
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|
255 end = 0; |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
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|
256 suffix = 0; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
257 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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|
258 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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changeset
|
259 |
231
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
260 if (*p != '-') { |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
261 if (*p < '0' || *p > '9') { |
2118
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262 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
263 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
264 |
231
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
265 while (*p >= '0' && *p <= '9') { |
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diff
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266 start = start * 10 + *p++ - '0'; |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
267 } |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
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diff
changeset
|
268 |
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nginx-0.0.1-2004-01-16-21:29:15 import
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diff
changeset
|
269 while (*p == ' ') { p++; } |
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diff
changeset
|
270 |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
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|
271 if (*p++ != '-') { |
2118
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272 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
273 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
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|
274 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
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|
275 while (*p == ' ') { p++; } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
276 |
231
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nginx-0.0.1-2004-01-16-21:29:15 import
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diff
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|
277 if (*p == ',' || *p == '\0') { |
4162
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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278 end = content_length; |
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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279 goto found; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
280 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
281 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
changeset
|
282 } else { |
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nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
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diff
changeset
|
283 suffix = 1; |
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nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
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|
284 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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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 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
287 if (*p < '0' || *p > '9') { |
2118
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288 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
|
289 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
290 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
291 while (*p >= '0' && *p <= '9') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
292 end = end * 10 + *p++ - '0'; |
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nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
293 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
294 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
295 while (*p == ' ') { p++; } |
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nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
296 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
297 if (*p != ',' && *p != '\0') { |
2118
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298 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
|
299 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
300 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
301 if (suffix) { |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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diff
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|
302 start = content_length - end; |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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|
303 end = content_length - 1; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
304 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
305 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
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diff
changeset
|
306 if (end >= content_length) { |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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|
307 end = content_length; |
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Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
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diff
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|
308 |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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diff
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|
309 } else { |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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|
310 end++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
311 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
312 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
313 found: |
461 | 314 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
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diff
changeset
|
315 if (start < end) { |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
316 range = ngx_array_push(&ctx->ranges); |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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parents:
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diff
changeset
|
317 if (range == NULL) { |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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|
318 return NGX_ERROR; |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
319 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
320 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
321 range->start = start; |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
322 range->end = end; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
323 |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
324 size += end - start; |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
325 |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
326 if (ranges-- == 0) { |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
327 return NGX_DECLINED; |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
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 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
330 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
331 if (*p++ != ',') { |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
332 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
333 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
334 } |
4162
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
335 |
fb1375e8b68c
Merging r4036, r4055, r4056, r4057, r4058, r4059, r4060, r4061, r4062, r4063,
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336 if (ctx->ranges.nelts == 0) { |
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337 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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338 } |
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339 |
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340 if (size > content_length) { |
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341 return NGX_DECLINED; |
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342 } |
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343 |
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344 return NGX_OK; |
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345 } |
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346 |
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347 |
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348 static ngx_int_t |
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349 ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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350 ngx_http_range_filter_ctx_t *ctx) |
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351 { |
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352 ngx_table_elt_t *content_range; |
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353 ngx_http_range_t *range; |
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354 |
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355 content_range = ngx_list_push(&r->headers_out.headers); |
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356 if (content_range == NULL) { |
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357 return NGX_ERROR; |
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358 } |
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359 |
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360 r->headers_out.content_range = content_range; |
461 | 361 |
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362 content_range->hash = 1; |
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363 ngx_str_set(&content_range->key, "Content-Range"); |
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364 |
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365 content_range->value.data = ngx_pnalloc(r->pool, |
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366 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
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367 if (content_range->value.data == NULL) { |
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368 return NGX_ERROR; |
461 | 369 } |
370 | |
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371 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 372 |
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373 range = ctx->ranges.elts; |
461 | 374 |
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375 content_range->value.len = ngx_sprintf(content_range->value.data, |
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376 "bytes %O-%O/%O", |
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377 range->start, range->end - 1, |
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378 r->headers_out.content_length_n) |
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379 - content_range->value.data; |
461 | 380 |
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381 r->headers_out.content_length_n = range->end - range->start; |
461 | 382 |
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383 if (r->headers_out.content_length) { |
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384 r->headers_out.content_length->hash = 0; |
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385 r->headers_out.content_length = NULL; |
461 | 386 } |
387 | |
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388 return ngx_http_next_header_filter(r); |
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389 } |
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390 |
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391 |
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392 static ngx_int_t |
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393 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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394 ngx_http_range_filter_ctx_t *ctx) |
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395 { |
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396 size_t len; |
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397 ngx_uint_t i; |
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398 ngx_http_range_t *range; |
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399 ngx_atomic_uint_t boundary; |
461 | 400 |
493 | 401 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
402 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 403 + r->headers_out.content_type.len |
461 | 404 + sizeof(CRLF "Content-Range: bytes ") - 1; |
405 | |
406 if (r->headers_out.charset.len) { | |
407 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
408 } | |
409 | |
2049 | 410 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 411 if (ctx->boundary_header.data == NULL) { |
461 | 412 return NGX_ERROR; |
413 } | |
414 | |
493 | 415 boundary = ngx_next_temp_number(0); |
461 | 416 |
417 /* | |
418 * The boundary header of the range: | |
419 * CRLF | |
420 * "--0123456789" CRLF | |
421 * "Content-Type: image/jpeg" CRLF | |
422 * "Content-Range: bytes " | |
423 */ | |
424 | |
425 if (r->headers_out.charset.len) { | |
426 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 427 CRLF "--%0muA" CRLF |
461 | 428 "Content-Type: %V; charset=%V" CRLF |
429 "Content-Range: bytes ", | |
430 boundary, | |
509 | 431 &r->headers_out.content_type, |
461 | 432 &r->headers_out.charset) |
433 - ctx->boundary_header.data; | |
434 | |
435 r->headers_out.charset.len = 0; | |
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436 |
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437 } else if (r->headers_out.content_type.len) { |
461 | 438 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 439 CRLF "--%0muA" CRLF |
461 | 440 "Content-Type: %V" CRLF |
441 "Content-Range: bytes ", | |
442 boundary, | |
509 | 443 &r->headers_out.content_type) |
461 | 444 - ctx->boundary_header.data; |
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445 |
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446 } else { |
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447 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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448 CRLF "--%0muA" CRLF |
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449 "Content-Range: bytes ", |
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450 boundary) |
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451 - ctx->boundary_header.data; |
461 | 452 } |
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453 |
509 | 454 r->headers_out.content_type.data = |
2049 | 455 ngx_pnalloc(r->pool, |
456 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
457 + NGX_ATOMIC_T_LEN); | |
165
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458 |
509 | 459 if (r->headers_out.content_type.data == NULL) { |
461 | 460 return NGX_ERROR; |
461 } | |
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462 |
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463 r->headers_out.content_type_lowcase = NULL; |
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464 |
461 | 465 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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466 |
509 | 467 r->headers_out.content_type.len = |
468 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 469 "multipart/byteranges; boundary=%0muA", |
461 | 470 boundary) |
509 | 471 - r->headers_out.content_type.data; |
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472 |
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473 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 474 |
461 | 475 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 476 |
477 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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478 |
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479 range = ctx->ranges.elts; |
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480 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 481 |
461 | 482 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 483 |
461 | 484 range[i].content_range.data = |
2049 | 485 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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486 |
461 | 487 if (range[i].content_range.data == NULL) { |
488 return NGX_ERROR; | |
489 } | |
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490 |
461 | 491 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
492 "%O-%O/%O" CRLF CRLF, | |
493 range[i].start, range[i].end - 1, | |
494 r->headers_out.content_length_n) | |
495 - range[i].content_range.data; | |
160
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496 |
461 | 497 len += ctx->boundary_header.len + range[i].content_range.len |
498 + (size_t) (range[i].end - range[i].start); | |
499 } | |
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500 |
461 | 501 r->headers_out.content_length_n = len; |
960 | 502 |
503 if (r->headers_out.content_length) { | |
504 r->headers_out.content_length->hash = 0; | |
505 r->headers_out.content_length = NULL; | |
506 } | |
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507 |
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508 return ngx_http_next_header_filter(r); |
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509 } |
1630 | 510 |
511 | |
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512 static ngx_int_t |
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513 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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514 { |
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515 ngx_table_elt_t *content_range; |
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516 |
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517 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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518 |
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519 content_range = ngx_list_push(&r->headers_out.headers); |
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520 if (content_range == NULL) { |
1630 | 521 return NGX_ERROR; |
522 } | |
523 | |
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524 r->headers_out.content_range = content_range; |
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525 |
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526 content_range->hash = 1; |
3516
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527 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 528 |
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529 content_range->value.data = ngx_pnalloc(r->pool, |
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530 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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531 if (content_range->value.data == NULL) { |
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532 return NGX_ERROR; |
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533 } |
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534 |
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535 content_range->value.len = ngx_sprintf(content_range->value.data, |
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536 "bytes */%O", |
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537 r->headers_out.content_length_n) |
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538 - content_range->value.data; |
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539 |
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540 ngx_http_clear_content_length(r); |
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541 |
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542 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
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nginx-0.0.1-2003-06-02-19:24:30 import
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543 } |
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544 |
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545 |
493 | 546 static ngx_int_t |
547 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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548 { |
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549 ngx_http_range_filter_ctx_t *ctx; |
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550 |
963
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551 if (in == NULL) { |
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552 return ngx_http_next_body_filter(r, in); |
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553 } |
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554 |
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555 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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556 |
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557 if (ctx == NULL) { |
155
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153
diff
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|
558 return ngx_http_next_body_filter(r, in); |
99
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559 } |
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|
560 |
2121
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561 if (ctx->ranges.nelts == 1) { |
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562 return ngx_http_range_singlepart_body(r, ctx, in); |
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563 } |
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|
564 |
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|
565 /* |
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|
566 * multipart ranges are supported only if whole body is in a single buffer |
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567 */ |
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|
568 |
962
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|
569 if (ngx_buf_special(in->buf)) { |
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570 return ngx_http_next_body_filter(r, in); |
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571 } |
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|
572 |
2118
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573 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
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574 return NGX_ERROR; |
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|
575 } |
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|
576 |
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|
577 return ngx_http_range_multipart_body(r, ctx, in); |
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|
578 } |
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|
579 |
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changeset
|
580 |
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changeset
|
581 static ngx_int_t |
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changeset
|
582 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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|
583 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
584 { |
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|
585 off_t start, last; |
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changeset
|
586 ngx_buf_t *buf; |
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|
587 ngx_uint_t i; |
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|
588 ngx_http_range_t *range; |
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changeset
|
589 |
962
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changeset
|
590 if (ctx->offset) { |
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changeset
|
591 goto overlapped; |
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diff
changeset
|
592 } |
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diff
changeset
|
593 |
2118
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changeset
|
594 buf = in->buf; |
960 | 595 |
596 if (!buf->last_buf) { | |
962
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diff
changeset
|
597 |
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diff
changeset
|
598 if (buf->in_file) { |
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diff
changeset
|
599 start = buf->file_pos + ctx->offset; |
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diff
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|
600 last = buf->file_last + ctx->offset; |
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changeset
|
601 |
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support ranges for single memory buffer
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diff
changeset
|
602 } else { |
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diff
changeset
|
603 start = buf->pos - buf->start + ctx->offset; |
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diff
changeset
|
604 last = buf->last - buf->start + ctx->offset; |
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diff
changeset
|
605 } |
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diff
changeset
|
606 |
2118
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changeset
|
607 range = ctx->ranges.elts; |
963
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diff
changeset
|
608 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
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diff
changeset
|
609 if (start > range[i].start || last < range[i].end) { |
960 | 610 goto overlapped; |
611 } | |
612 } | |
613 } | |
614 | |
962
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diff
changeset
|
615 ctx->offset = ngx_buf_size(buf); |
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diff
changeset
|
616 |
2118
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|
617 return NGX_OK; |
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changeset
|
618 |
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diff
changeset
|
619 overlapped: |
960 | 620 |
2118
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changeset
|
621 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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changeset
|
622 "range in overlapped buffers"); |
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changeset
|
623 |
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|
624 return NGX_ERROR; |
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|
625 } |
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diff
changeset
|
626 |
962
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diff
changeset
|
627 |
2118
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changeset
|
628 static ngx_int_t |
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changeset
|
629 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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changeset
|
630 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
631 { |
2121
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changeset
|
632 off_t start, last; |
2118
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changeset
|
633 ngx_buf_t *buf; |
2121
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changeset
|
634 ngx_chain_t *out, *cl, **ll; |
2118
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changeset
|
635 ngx_http_range_t *range; |
960 | 636 |
2121
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diff
changeset
|
637 out = NULL; |
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diff
changeset
|
638 ll = &out; |
2118
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|
639 range = ctx->ranges.elts; |
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changeset
|
640 |
2121
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diff
changeset
|
641 for (cl = in; cl; cl = cl->next) { |
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diff
changeset
|
642 |
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changeset
|
643 buf = cl->buf; |
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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 start = ctx->offset; |
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support several buf's for single-part range
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|
646 last = ctx->offset + ngx_buf_size(buf); |
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diff
changeset
|
647 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
648 ctx->offset = last; |
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support several buf's for single-part range
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diff
changeset
|
649 |
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650 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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651 "http range body buf: %O-%O", start, last); |
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652 |
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653 if (ngx_buf_special(buf)) { |
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654 *ll = cl; |
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655 ll = &cl->next; |
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656 continue; |
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657 } |
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658 |
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659 if (range->end <= start || range->start >= last) { |
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660 |
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661 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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662 "http range body skip"); |
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663 |
2269 | 664 if (buf->in_file) { |
665 buf->file_pos = buf->file_last; | |
666 } | |
667 | |
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668 buf->pos = buf->last; |
2269 | 669 buf->sync = 1; |
670 | |
2121
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671 continue; |
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672 } |
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673 |
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674 if (range->start > start) { |
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675 |
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676 if (buf->in_file) { |
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677 buf->file_pos += range->start - start; |
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678 } |
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679 |
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680 if (ngx_buf_in_memory(buf)) { |
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681 buf->pos += (size_t) (range->start - start); |
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682 } |
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683 } |
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684 |
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685 if (range->end <= last) { |
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686 |
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687 if (buf->in_file) { |
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688 buf->file_last -= last - range->end; |
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689 } |
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690 |
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691 if (ngx_buf_in_memory(buf)) { |
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692 buf->last -= (size_t) (last - range->end); |
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693 } |
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694 |
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695 buf->last_buf = 1; |
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696 *ll = cl; |
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697 cl->next = NULL; |
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698 |
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699 break; |
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700 } |
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701 |
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702 *ll = cl; |
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703 ll = &cl->next; |
960 | 704 } |
705 | |
2121
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706 if (out == NULL) { |
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707 return NGX_OK; |
2118
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708 } |
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709 |
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710 return ngx_http_next_body_filter(r, out); |
2118
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711 } |
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712 |
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713 |
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714 static ngx_int_t |
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715 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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716 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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717 { |
2592
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718 off_t body_start; |
2118
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719 ngx_buf_t *b, *buf; |
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720 ngx_uint_t i; |
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721 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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722 ngx_http_range_t *range; |
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723 |
960 | 724 ll = &out; |
2118
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725 buf = in->buf; |
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726 range = ctx->ranges.elts; |
160
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727 |
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728 #if (NGX_HTTP_CACHE) |
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729 body_start = r->cached ? r->cache->body_start : 0; |
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730 #else |
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731 body_start = 0; |
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732 #endif |
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733 |
963
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734 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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735 |
960 | 736 /* |
737 * The boundary header of the range: | |
738 * CRLF | |
739 * "--0123456789" CRLF | |
740 * "Content-Type: image/jpeg" CRLF | |
741 * "Content-Range: bytes " | |
742 */ | |
743 | |
744 b = ngx_calloc_buf(r->pool); | |
745 if (b == NULL) { | |
746 return NGX_ERROR; | |
99
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747 } |
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748 |
960 | 749 b->memory = 1; |
750 b->pos = ctx->boundary_header.data; | |
751 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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752 |
960 | 753 hcl = ngx_alloc_chain_link(r->pool); |
754 if (hcl == NULL) { | |
755 return NGX_ERROR; | |
756 } | |
461 | 757 |
960 | 758 hcl->buf = b; |
99
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759 |
461 | 760 |
960 | 761 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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762 |
501 | 763 b = ngx_calloc_buf(r->pool); |
764 if (b == NULL) { | |
461 | 765 return NGX_ERROR; |
766 } | |
767 | |
343
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|
768 b->temporary = 1; |
960 | 769 b->pos = range[i].content_range.data; |
770 b->last = range[i].content_range.data + range[i].content_range.len; | |
771 | |
772 rcl = ngx_alloc_chain_link(r->pool); | |
773 if (rcl == NULL) { | |
774 return NGX_ERROR; | |
775 } | |
776 | |
777 rcl->buf = b; | |
778 | |
779 | |
780 /* the range data */ | |
461 | 781 |
960 | 782 b = ngx_calloc_buf(r->pool); |
783 if (b == NULL) { | |
784 return NGX_ERROR; | |
785 } | |
786 | |
962
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787 b->in_file = buf->in_file; |
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788 b->temporary = buf->temporary; |
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789 b->memory = buf->memory; |
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790 b->mmap = buf->mmap; |
960 | 791 b->file = buf->file; |
792 | |
962
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793 if (buf->in_file) { |
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794 b->file_pos = body_start + range[i].start; |
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795 b->file_last = body_start + range[i].end; |
962
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796 } |
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797 |
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798 if (ngx_buf_in_memory(buf)) { |
1093 | 799 b->pos = buf->start + (size_t) range[i].start; |
800 b->last = buf->start + (size_t) range[i].end; | |
962
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801 } |
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802 |
960 | 803 dcl = ngx_alloc_chain_link(r->pool); |
804 if (dcl == NULL) { | |
461 | 805 return NGX_ERROR; |
806 } | |
807 | |
960 | 808 dcl->buf = b; |
461 | 809 |
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|
810 *ll = hcl; |
960 | 811 hcl->next = rcl; |
812 rcl->next = dcl; | |
813 ll = &dcl->next; | |
814 } | |
99
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815 |
960 | 816 /* the last boundary CRLF "--0123456789--" CRLF */ |
817 | |
818 b = ngx_calloc_buf(r->pool); | |
819 if (b == NULL) { | |
820 return NGX_ERROR; | |
821 } | |
822 | |
823 b->temporary = 1; | |
824 b->last_buf = 1; | |
825 | |
2049 | 826 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
827 + sizeof("--" CRLF) - 1); | |
960 | 828 if (b->pos == NULL) { |
829 return NGX_ERROR; | |
99
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830 } |
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|
831 |
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diff
changeset
|
832 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
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|
833 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 834 *b->last++ = '-'; *b->last++ = '-'; |
835 *b->last++ = CR; *b->last++ = LF; | |
836 | |
837 hcl = ngx_alloc_chain_link(r->pool); | |
838 if (hcl == NULL) { | |
839 return NGX_ERROR; | |
840 } | |
841 | |
842 hcl->buf = b; | |
843 hcl->next = NULL; | |
99
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|
844 |
960 | 845 *ll = hcl; |
846 | |
847 return ngx_http_next_body_filter(r, out); | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
848 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
849 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
850 |
493 | 851 static ngx_int_t |
681 | 852 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
853 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
854 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
855 ngx_http_top_header_filter = ngx_http_range_header_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
856 |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
857 return NGX_OK; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
858 } |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
859 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
860 |
493 | 861 static ngx_int_t |
681 | 862 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
863 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
864 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
865 ngx_http_top_body_filter = ngx_http_range_body_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
866 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
867 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
868 } |