Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 5300:f538a67c9f77
Upstream: u->length now defaults to -1 (API change).
That is, by default we assume that response end is signalled by
a connection close. This seems to be better default, and in line
with u->pipe->length behaviour.
Memcached module was modified accordingly.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 25 Jul 2013 14:58:11 +0400 |
parents | 149634c98d67 |
children | a387ce36744a |
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); |
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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, |
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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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Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
117 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
118 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
|
119 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
|
120 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
121 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
|
122 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
|
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
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
125 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
126 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 127 NGX_MODULE_V1, |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
128 &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
|
129 NULL, /* module directives */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
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
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 |
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
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
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
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
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
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 |
493 | 146 static ngx_int_t |
147 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
|
148 { |
4745
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Entity tags: support in If-Range header.
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parents:
4741
diff
changeset
|
149 time_t if_range_time; |
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Entity tags: support in If-Range header.
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parents:
4741
diff
changeset
|
150 ngx_str_t *if_range, *etag; |
4062 | 151 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
|
152 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
|
153 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
154 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
|
155 || 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
|
156 || 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
|
157 || r->headers_out.content_length_n == -1 |
581 | 158 || !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
|
159 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
160 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
|
161 } |
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
162 |
4062 | 163 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
164 | |
165 if (clcf->max_ranges == 0) { | |
166 return ngx_http_next_header_filter(r); | |
167 } | |
168 | |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
169 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
|
170 || r->headers_in.range->value.len < 7 |
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
171 || ngx_strncasecmp(r->headers_in.range->value.data, |
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
172 (u_char *) "bytes=", 6) |
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
173 != 0) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 { |
1630 | 175 goto next_filter; |
176 } | |
177 | |
4741
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
178 if (r->headers_in.if_range) { |
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
179 |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
180 if_range = &r->headers_in.if_range->value; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
181 |
4750
149634c98d67
Entity tags: empty etags handling in If-Range.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4745
diff
changeset
|
182 if (if_range->len >= 2 && if_range->data[if_range->len - 1] == '"') { |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
183 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
184 if (r->headers_out.etag == NULL) { |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
185 goto next_filter; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
186 } |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
187 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
188 etag = &r->headers_out.etag->value; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
189 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
190 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
191 "http ir:%V etag:%V", if_range, etag); |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
192 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
193 if (if_range->len != etag->len |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
194 || ngx_strncmp(if_range->data, etag->data, etag->len) != 0) |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
195 { |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
196 goto next_filter; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
197 } |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
198 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
199 goto parse; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
200 } |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
201 |
4741
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
202 if (r->headers_out.last_modified_time == (time_t) -1) { |
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
203 goto next_filter; |
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
204 } |
1630 | 205 |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
206 if_range_time = ngx_http_parse_time(if_range->data, if_range->len); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
207 |
1630 | 208 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
209 "http ir:%d lm:%d", | |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
210 if_range_time, 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
|
211 |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
212 if (if_range_time != r->headers_out.last_modified_time) { |
1630 | 213 goto next_filter; |
214 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
217 parse: |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
218 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
219 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
220 if (ctx == NULL) { |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
221 return NGX_ERROR; |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
222 } |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
223 |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
224 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
|
225 != NGX_OK) |
461 | 226 { |
227 return NGX_ERROR; | |
228 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
229 |
4062 | 230 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
|
231 |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
232 case NGX_OK: |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
233 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
234 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
235 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
3a8a53c0c42f
a prelimiary proxy cache support
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
236 r->headers_out.status_line.len = 0; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
237 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
238 if (ctx->ranges.nelts == 1) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
239 return ngx_http_range_singlepart_header(r, ctx); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
240 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
241 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
242 return ngx_http_range_multipart_header(r, ctx); |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
243 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
244 case NGX_HTTP_RANGE_NOT_SATISFIABLE: |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
245 return ngx_http_range_not_satisfiable(r); |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
246 |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
247 case NGX_ERROR: |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
248 return NGX_ERROR; |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
249 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
250 default: /* 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
|
251 break; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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252 } |
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253 |
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254 next_filter: |
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255 |
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256 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
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257 if (r->headers_out.accept_ranges == NULL) { |
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258 return NGX_ERROR; |
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259 } |
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260 |
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261 r->headers_out.accept_ranges->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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262 ngx_str_set(&r->headers_out.accept_ranges->key, "Accept-Ranges"); |
dd1570b6f237
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263 ngx_str_set(&r->headers_out.accept_ranges->value, "bytes"); |
2118
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264 |
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265 return ngx_http_next_header_filter(r); |
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266 } |
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267 |
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268 |
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d32a2000b766
ngx_http_range_parse() should be static.
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|
269 static ngx_int_t |
4062 | 270 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx, |
271 ngx_uint_t ranges) | |
2118
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272 { |
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273 u_char *p; |
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274 off_t start, end, size, content_length; |
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275 ngx_uint_t suffix; |
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276 ngx_http_range_t *range; |
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277 |
99
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278 p = r->headers_in.range->value.data + 6; |
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Now if total size of all ranges is greater than source response size,
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279 size = 0; |
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280 content_length = r->headers_out.content_length_n; |
99
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281 |
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282 for ( ;; ) { |
231
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283 start = 0; |
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284 end = 0; |
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285 suffix = 0; |
99
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286 |
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nginx-0.0.1-2003-06-02-19:24:30 import
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287 while (*p == ' ') { p++; } |
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288 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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289 if (*p != '-') { |
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290 if (*p < '0' || *p > '9') { |
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291 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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|
292 } |
99
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|
293 |
231
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294 while (*p >= '0' && *p <= '9') { |
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295 start = start * 10 + *p++ - '0'; |
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|
296 } |
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|
297 |
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nginx-0.0.1-2004-01-16-21:29:15 import
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298 while (*p == ' ') { p++; } |
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|
299 |
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300 if (*p++ != '-') { |
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301 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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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|
302 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
303 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
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|
304 while (*p == ' ') { p++; } |
99
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diff
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|
305 |
231
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nginx-0.0.1-2004-01-16-21:29:15 import
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|
306 if (*p == ',' || *p == '\0') { |
4057
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|
307 end = content_length; |
4055
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|
308 goto found; |
99
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diff
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|
309 } |
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|
310 |
231
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|
311 } else { |
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|
312 suffix = 1; |
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diff
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|
313 p++; |
99
a059e1aa65d4
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diff
changeset
|
314 } |
a059e1aa65d4
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|
315 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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|
316 if (*p < '0' || *p > '9') { |
2118
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|
317 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
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diff
changeset
|
318 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
319 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
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|
320 while (*p >= '0' && *p <= '9') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
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|
321 end = end * 10 + *p++ - '0'; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
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|
322 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
323 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
324 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
325 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
326 if (*p != ',' && *p != '\0') { |
2118
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|
327 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
328 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
329 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
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|
330 if (suffix) { |
4057
3205a6d6c6ec
Ranges processing small optimization.
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diff
changeset
|
331 start = content_length - end; |
3205a6d6c6ec
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diff
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|
332 end = content_length - 1; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
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|
333 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
changeset
|
334 |
4057
3205a6d6c6ec
Ranges processing small optimization.
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4056
diff
changeset
|
335 if (end >= content_length) { |
3205a6d6c6ec
Ranges processing small optimization.
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diff
changeset
|
336 end = content_length; |
4055
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Ranges processing small optimization.
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4054
diff
changeset
|
337 |
9cce506be97d
Ranges processing small optimization.
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4054
diff
changeset
|
338 } else { |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
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4054
diff
changeset
|
339 end++; |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
340 } |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
341 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
342 found: |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
343 |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
344 if (start < end) { |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
345 range = ngx_array_push(&ctx->ranges); |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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parents:
4060
diff
changeset
|
346 if (range == NULL) { |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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4060
diff
changeset
|
347 return NGX_ERROR; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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parents:
4060
diff
changeset
|
348 } |
461 | 349 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
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4060
diff
changeset
|
350 range->start = start; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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4060
diff
changeset
|
351 range->end = end; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
352 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
353 size += end - start; |
4062 | 354 |
4063
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
Igor Sysoev <igor@sysoev.ru>
parents:
4062
diff
changeset
|
355 if (ranges-- == 0) { |
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
Igor Sysoev <igor@sysoev.ru>
parents:
4062
diff
changeset
|
356 return NGX_DECLINED; |
4062 | 357 } |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
358 } |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
359 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
changeset
|
360 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
|
361 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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195
diff
changeset
|
362 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
363 } |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
364 |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
365 if (ctx->ranges.nelts == 0) { |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
366 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
|
367 } |
e9213133993a
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368 |
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369 if (size > content_length) { |
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370 return NGX_DECLINED; |
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371 } |
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372 |
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373 return NGX_OK; |
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374 } |
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375 |
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376 |
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377 static ngx_int_t |
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378 ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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379 ngx_http_range_filter_ctx_t *ctx) |
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380 { |
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381 ngx_table_elt_t *content_range; |
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382 ngx_http_range_t *range; |
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383 |
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384 content_range = ngx_list_push(&r->headers_out.headers); |
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385 if (content_range == NULL) { |
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386 return NGX_ERROR; |
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387 } |
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388 |
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389 r->headers_out.content_range = content_range; |
461 | 390 |
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391 content_range->hash = 1; |
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392 ngx_str_set(&content_range->key, "Content-Range"); |
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393 |
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394 content_range->value.data = ngx_pnalloc(r->pool, |
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395 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
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396 if (content_range->value.data == NULL) { |
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397 return NGX_ERROR; |
461 | 398 } |
399 | |
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400 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 401 |
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402 range = ctx->ranges.elts; |
461 | 403 |
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404 content_range->value.len = ngx_sprintf(content_range->value.data, |
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405 "bytes %O-%O/%O", |
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406 range->start, range->end - 1, |
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407 r->headers_out.content_length_n) |
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408 - content_range->value.data; |
461 | 409 |
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410 r->headers_out.content_length_n = range->end - range->start; |
461 | 411 |
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412 if (r->headers_out.content_length) { |
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413 r->headers_out.content_length->hash = 0; |
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414 r->headers_out.content_length = NULL; |
461 | 415 } |
416 | |
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417 return ngx_http_next_header_filter(r); |
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418 } |
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419 |
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420 |
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421 static ngx_int_t |
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422 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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423 ngx_http_range_filter_ctx_t *ctx) |
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424 { |
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425 size_t len; |
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426 ngx_uint_t i; |
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427 ngx_http_range_t *range; |
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428 ngx_atomic_uint_t boundary; |
461 | 429 |
493 | 430 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
431 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 432 + r->headers_out.content_type.len |
461 | 433 + sizeof(CRLF "Content-Range: bytes ") - 1; |
434 | |
435 if (r->headers_out.charset.len) { | |
436 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
437 } | |
438 | |
2049 | 439 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 440 if (ctx->boundary_header.data == NULL) { |
461 | 441 return NGX_ERROR; |
442 } | |
443 | |
493 | 444 boundary = ngx_next_temp_number(0); |
461 | 445 |
446 /* | |
447 * The boundary header of the range: | |
448 * CRLF | |
449 * "--0123456789" CRLF | |
450 * "Content-Type: image/jpeg" CRLF | |
451 * "Content-Range: bytes " | |
452 */ | |
453 | |
454 if (r->headers_out.charset.len) { | |
455 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 456 CRLF "--%0muA" CRLF |
461 | 457 "Content-Type: %V; charset=%V" CRLF |
458 "Content-Range: bytes ", | |
459 boundary, | |
509 | 460 &r->headers_out.content_type, |
461 | 461 &r->headers_out.charset) |
462 - ctx->boundary_header.data; | |
463 | |
464 r->headers_out.charset.len = 0; | |
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465 |
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466 } else if (r->headers_out.content_type.len) { |
461 | 467 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 468 CRLF "--%0muA" CRLF |
461 | 469 "Content-Type: %V" CRLF |
470 "Content-Range: bytes ", | |
471 boundary, | |
509 | 472 &r->headers_out.content_type) |
461 | 473 - ctx->boundary_header.data; |
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474 |
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475 } else { |
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476 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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477 CRLF "--%0muA" CRLF |
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478 "Content-Range: bytes ", |
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479 boundary) |
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480 - ctx->boundary_header.data; |
461 | 481 } |
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482 |
509 | 483 r->headers_out.content_type.data = |
2049 | 484 ngx_pnalloc(r->pool, |
485 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
486 + NGX_ATOMIC_T_LEN); | |
165
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487 |
509 | 488 if (r->headers_out.content_type.data == NULL) { |
461 | 489 return NGX_ERROR; |
490 } | |
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491 |
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492 r->headers_out.content_type_lowcase = NULL; |
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493 |
461 | 494 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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495 |
509 | 496 r->headers_out.content_type.len = |
497 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 498 "multipart/byteranges; boundary=%0muA", |
461 | 499 boundary) |
509 | 500 - r->headers_out.content_type.data; |
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501 |
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502 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 503 |
461 | 504 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 505 |
506 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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507 |
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508 range = ctx->ranges.elts; |
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509 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 510 |
461 | 511 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 512 |
461 | 513 range[i].content_range.data = |
2049 | 514 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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515 |
461 | 516 if (range[i].content_range.data == NULL) { |
517 return NGX_ERROR; | |
518 } | |
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519 |
461 | 520 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
521 "%O-%O/%O" CRLF CRLF, | |
522 range[i].start, range[i].end - 1, | |
523 r->headers_out.content_length_n) | |
524 - range[i].content_range.data; | |
160
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525 |
461 | 526 len += ctx->boundary_header.len + range[i].content_range.len |
527 + (size_t) (range[i].end - range[i].start); | |
528 } | |
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529 |
461 | 530 r->headers_out.content_length_n = len; |
960 | 531 |
532 if (r->headers_out.content_length) { | |
533 r->headers_out.content_length->hash = 0; | |
534 r->headers_out.content_length = NULL; | |
535 } | |
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536 |
155
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537 return ngx_http_next_header_filter(r); |
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538 } |
1630 | 539 |
540 | |
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541 static ngx_int_t |
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542 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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543 { |
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544 ngx_table_elt_t *content_range; |
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545 |
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546 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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547 |
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548 content_range = ngx_list_push(&r->headers_out.headers); |
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549 if (content_range == NULL) { |
1630 | 550 return NGX_ERROR; |
551 } | |
552 | |
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553 r->headers_out.content_range = content_range; |
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554 |
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555 content_range->hash = 1; |
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556 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 557 |
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558 content_range->value.data = ngx_pnalloc(r->pool, |
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559 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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560 if (content_range->value.data == NULL) { |
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561 return NGX_ERROR; |
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562 } |
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changeset
|
563 |
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|
564 content_range->value.len = ngx_sprintf(content_range->value.data, |
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split ngx_http_range_filter_module
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|
565 "bytes */%O", |
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diff
changeset
|
566 r->headers_out.content_length_n) |
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567 - content_range->value.data; |
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changeset
|
568 |
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|
569 ngx_http_clear_content_length(r); |
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|
570 |
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571 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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572 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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|
573 |
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nginx-0.0.1-2003-06-02-19:24:30 import
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|
574 |
493 | 575 static ngx_int_t |
576 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
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|
577 { |
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diff
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|
578 ngx_http_range_filter_ctx_t *ctx; |
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diff
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|
579 |
963
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580 if (in == NULL) { |
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diff
changeset
|
581 return ngx_http_next_body_filter(r, in); |
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move ranges array to ngx_http_range_filter_ctx_t
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962
diff
changeset
|
582 } |
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move ranges array to ngx_http_range_filter_ctx_t
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changeset
|
583 |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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diff
changeset
|
584 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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962
diff
changeset
|
585 |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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diff
changeset
|
586 if (ctx == NULL) { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
587 return ngx_http_next_body_filter(r, in); |
99
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parents:
diff
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|
588 } |
a059e1aa65d4
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diff
changeset
|
589 |
2121
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|
590 if (ctx->ranges.nelts == 1) { |
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support several buf's for single-part range
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diff
changeset
|
591 return ngx_http_range_singlepart_body(r, ctx, in); |
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support several buf's for single-part range
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|
592 } |
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diff
changeset
|
593 |
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support several buf's for single-part range
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diff
changeset
|
594 /* |
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support several buf's for single-part range
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|
595 * multipart ranges are supported only if whole body is in a single buffer |
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|
596 */ |
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|
597 |
962
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diff
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598 if (ngx_buf_special(in->buf)) { |
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599 return ngx_http_next_body_filter(r, in); |
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|
600 } |
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diff
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|
601 |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
602 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
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split ngx_http_range_filter_module
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changeset
|
603 return NGX_ERROR; |
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|
604 } |
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diff
changeset
|
605 |
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diff
changeset
|
606 return ngx_http_range_multipart_body(r, ctx, in); |
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changeset
|
607 } |
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diff
changeset
|
608 |
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diff
changeset
|
609 |
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split ngx_http_range_filter_module
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diff
changeset
|
610 static ngx_int_t |
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diff
changeset
|
611 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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split ngx_http_range_filter_module
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diff
changeset
|
612 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
changeset
|
613 { |
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diff
changeset
|
614 off_t start, last; |
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diff
changeset
|
615 ngx_buf_t *buf; |
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split ngx_http_range_filter_module
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diff
changeset
|
616 ngx_uint_t i; |
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diff
changeset
|
617 ngx_http_range_t *range; |
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diff
changeset
|
618 |
962
69754fb59ba1
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961
diff
changeset
|
619 if (ctx->offset) { |
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support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
620 goto overlapped; |
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support ranges for single memory buffer
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diff
changeset
|
621 } |
69754fb59ba1
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diff
changeset
|
622 |
2118
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diff
changeset
|
623 buf = in->buf; |
960 | 624 |
625 if (!buf->last_buf) { | |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
626 start = ctx->offset; |
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
627 last = ctx->offset + ngx_buf_size(buf); |
962
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
628 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
629 range = ctx->ranges.elts; |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
630 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
631 if (start > range[i].start || last < range[i].end) { |
960 | 632 goto overlapped; |
633 } | |
634 } | |
635 } | |
636 | |
962
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
637 ctx->offset = ngx_buf_size(buf); |
69754fb59ba1
support ranges for single memory buffer
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diff
changeset
|
638 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
639 return NGX_OK; |
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diff
changeset
|
640 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
641 overlapped: |
960 | 642 |
2118
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split ngx_http_range_filter_module
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2049
diff
changeset
|
643 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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split ngx_http_range_filter_module
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diff
changeset
|
644 "range in overlapped buffers"); |
c1f589732d8c
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diff
changeset
|
645 |
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split ngx_http_range_filter_module
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diff
changeset
|
646 return NGX_ERROR; |
c1f589732d8c
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diff
changeset
|
647 } |
c1f589732d8c
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diff
changeset
|
648 |
962
69754fb59ba1
support ranges for single memory buffer
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961
diff
changeset
|
649 |
2118
c1f589732d8c
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diff
changeset
|
650 static ngx_int_t |
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diff
changeset
|
651 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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diff
changeset
|
652 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
changeset
|
653 { |
2121
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support several buf's for single-part range
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2119
diff
changeset
|
654 off_t start, last; |
2118
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diff
changeset
|
655 ngx_buf_t *buf; |
2121
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support several buf's for single-part range
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parents:
2119
diff
changeset
|
656 ngx_chain_t *out, *cl, **ll; |
2118
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diff
changeset
|
657 ngx_http_range_t *range; |
960 | 658 |
2121
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support several buf's for single-part range
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diff
changeset
|
659 out = NULL; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
660 ll = &out; |
2118
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diff
changeset
|
661 range = ctx->ranges.elts; |
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diff
changeset
|
662 |
2121
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support several buf's for single-part range
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2119
diff
changeset
|
663 for (cl = in; cl; cl = cl->next) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
664 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
665 buf = cl->buf; |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
666 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
667 start = ctx->offset; |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
668 last = ctx->offset + ngx_buf_size(buf); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
669 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
670 ctx->offset = last; |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
671 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
672 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
|
673 "http range body buf: %O-%O", start, last); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
674 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
675 if (ngx_buf_special(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
676 *ll = cl; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
677 ll = &cl->next; |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
678 continue; |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
679 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
680 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
681 if (range->end <= start || range->start >= last) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
682 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
683 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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684 "http range body skip"); |
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685 |
2269 | 686 if (buf->in_file) { |
687 buf->file_pos = buf->file_last; | |
688 } | |
689 | |
2121
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690 buf->pos = buf->last; |
2269 | 691 buf->sync = 1; |
692 | |
2121
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693 continue; |
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694 } |
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695 |
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696 if (range->start > start) { |
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697 |
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698 if (buf->in_file) { |
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699 buf->file_pos += range->start - start; |
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700 } |
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701 |
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702 if (ngx_buf_in_memory(buf)) { |
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703 buf->pos += (size_t) (range->start - start); |
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704 } |
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705 } |
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706 |
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707 if (range->end <= last) { |
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708 |
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709 if (buf->in_file) { |
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710 buf->file_last -= last - range->end; |
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711 } |
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712 |
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713 if (ngx_buf_in_memory(buf)) { |
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714 buf->last -= (size_t) (last - range->end); |
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715 } |
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716 |
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717 buf->last_buf = 1; |
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718 *ll = cl; |
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719 cl->next = NULL; |
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720 |
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721 break; |
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722 } |
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723 |
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724 *ll = cl; |
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725 ll = &cl->next; |
960 | 726 } |
727 | |
2121
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728 if (out == NULL) { |
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729 return NGX_OK; |
2118
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730 } |
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|
731 |
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732 return ngx_http_next_body_filter(r, out); |
2118
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733 } |
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734 |
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|
735 |
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|
736 static ngx_int_t |
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737 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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738 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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739 { |
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740 ngx_buf_t *b, *buf; |
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741 ngx_uint_t i; |
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742 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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743 ngx_http_range_t *range; |
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744 |
960 | 745 ll = &out; |
2118
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|
746 buf = in->buf; |
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|
747 range = ctx->ranges.elts; |
160
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748 |
963
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|
749 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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|
750 |
960 | 751 /* |
752 * The boundary header of the range: | |
753 * CRLF | |
754 * "--0123456789" CRLF | |
755 * "Content-Type: image/jpeg" CRLF | |
756 * "Content-Range: bytes " | |
757 */ | |
758 | |
759 b = ngx_calloc_buf(r->pool); | |
760 if (b == NULL) { | |
761 return NGX_ERROR; | |
99
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762 } |
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diff
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|
763 |
960 | 764 b->memory = 1; |
765 b->pos = ctx->boundary_header.data; | |
766 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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|
767 |
960 | 768 hcl = ngx_alloc_chain_link(r->pool); |
769 if (hcl == NULL) { | |
770 return NGX_ERROR; | |
771 } | |
461 | 772 |
960 | 773 hcl->buf = b; |
99
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|
774 |
461 | 775 |
960 | 776 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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|
777 |
501 | 778 b = ngx_calloc_buf(r->pool); |
779 if (b == NULL) { | |
461 | 780 return NGX_ERROR; |
781 } | |
782 | |
343
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diff
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|
783 b->temporary = 1; |
960 | 784 b->pos = range[i].content_range.data; |
785 b->last = range[i].content_range.data + range[i].content_range.len; | |
786 | |
787 rcl = ngx_alloc_chain_link(r->pool); | |
788 if (rcl == NULL) { | |
789 return NGX_ERROR; | |
790 } | |
791 | |
792 rcl->buf = b; | |
793 | |
794 | |
795 /* the range data */ | |
461 | 796 |
960 | 797 b = ngx_calloc_buf(r->pool); |
798 if (b == NULL) { | |
799 return NGX_ERROR; | |
800 } | |
801 | |
962
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|
802 b->in_file = buf->in_file; |
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|
803 b->temporary = buf->temporary; |
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|
804 b->memory = buf->memory; |
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|
805 b->mmap = buf->mmap; |
960 | 806 b->file = buf->file; |
807 | |
962
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diff
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|
808 if (buf->in_file) { |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
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parents:
4412
diff
changeset
|
809 b->file_pos = buf->file_pos + range[i].start; |
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
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|
810 b->file_last = buf->file_pos + range[i].end; |
962
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|
811 } |
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|
812 |
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diff
changeset
|
813 if (ngx_buf_in_memory(buf)) { |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
814 b->pos = buf->pos + (size_t) range[i].start; |
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Removed r->cache/r->cached dependencies in range filter.
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diff
changeset
|
815 b->last = buf->pos + (size_t) range[i].end; |
962
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|
816 } |
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|
817 |
960 | 818 dcl = ngx_alloc_chain_link(r->pool); |
819 if (dcl == NULL) { | |
461 | 820 return NGX_ERROR; |
821 } | |
822 | |
960 | 823 dcl->buf = b; |
461 | 824 |
155
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|
825 *ll = hcl; |
960 | 826 hcl->next = rcl; |
827 rcl->next = dcl; | |
828 ll = &dcl->next; | |
829 } | |
99
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|
830 |
960 | 831 /* the last boundary CRLF "--0123456789--" CRLF */ |
832 | |
833 b = ngx_calloc_buf(r->pool); | |
834 if (b == NULL) { | |
835 return NGX_ERROR; | |
836 } | |
837 | |
838 b->temporary = 1; | |
839 b->last_buf = 1; | |
840 | |
2049 | 841 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
842 + sizeof("--" CRLF) - 1); | |
960 | 843 if (b->pos == NULL) { |
844 return NGX_ERROR; | |
99
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|
845 } |
a059e1aa65d4
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parents:
diff
changeset
|
846 |
1195
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fix multipart ranges trailing
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1107
diff
changeset
|
847 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
4ba6df5d5b53
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parents:
1107
diff
changeset
|
848 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 849 *b->last++ = '-'; *b->last++ = '-'; |
850 *b->last++ = CR; *b->last++ = LF; | |
851 | |
852 hcl = ngx_alloc_chain_link(r->pool); | |
853 if (hcl == NULL) { | |
854 return NGX_ERROR; | |
855 } | |
856 | |
857 hcl->buf = b; | |
858 hcl->next = NULL; | |
99
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|
859 |
960 | 860 *ll = hcl; |
861 | |
862 return ngx_http_next_body_filter(r, out); | |
99
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|
863 } |
a059e1aa65d4
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parents:
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|
864 |
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|
865 |
493 | 866 static ngx_int_t |
681 | 867 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
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|
868 { |
155
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|
869 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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diff
changeset
|
870 ngx_http_top_header_filter = ngx_http_range_header_filter; |
a059e1aa65d4
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diff
changeset
|
871 |
334
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314
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|
872 return NGX_OK; |
af451db3fe99
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|
873 } |
af451db3fe99
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|
874 |
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314
diff
changeset
|
875 |
493 | 876 static ngx_int_t |
681 | 877 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
af451db3fe99
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314
diff
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|
878 { |
155
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|
879 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
|
880 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
|
881 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
882 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
883 } |