Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 962:69754fb59ba1
support ranges for single memory buffer
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 29 Dec 2006 07:47:37 +0000 |
parents | 0d5ec8432efc |
children | 78e70dae89f0 |
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 |
441
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4 */ |
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5 |
99
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 |
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11 |
160
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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 offset; |
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49 ngx_str_t boundary_header; |
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50 } ngx_http_range_filter_ctx_t; |
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51 |
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52 |
681 | 53 static ngx_int_t ngx_http_range_header_filter_init(ngx_conf_t *cf); |
54 static ngx_int_t ngx_http_range_body_filter_init(ngx_conf_t *cf); | |
99
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55 |
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56 |
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57 static ngx_http_module_t ngx_http_range_header_filter_module_ctx = { |
509 | 58 NULL, /* preconfiguration */ |
681 | 59 ngx_http_range_header_filter_init, /* postconfiguration */ |
177
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60 |
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61 NULL, /* create main configuration */ |
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62 NULL, /* init main configuration */ |
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63 |
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64 NULL, /* create server configuration */ |
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65 NULL, /* merge server configuration */ |
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66 |
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67 NULL, /* create location configuration */ |
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68 NULL, /* merge location configuration */ |
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69 }; |
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70 |
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71 |
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72 ngx_module_t ngx_http_range_header_filter_module = { |
509 | 73 NGX_MODULE_V1, |
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74 &ngx_http_range_header_filter_module_ctx, /* module context */ |
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75 NULL, /* module directives */ |
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76 NGX_HTTP_MODULE, /* module type */ |
541 | 77 NULL, /* init master */ |
681 | 78 NULL, /* init module */ |
541 | 79 NULL, /* init process */ |
80 NULL, /* init thread */ | |
81 NULL, /* exit thread */ | |
82 NULL, /* exit process */ | |
83 NULL, /* exit master */ | |
84 NGX_MODULE_V1_PADDING | |
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85 }; |
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86 |
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87 |
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88 static ngx_http_module_t ngx_http_range_body_filter_module_ctx = { |
509 | 89 NULL, /* preconfiguration */ |
681 | 90 ngx_http_range_body_filter_init, /* postconfiguration */ |
334
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91 |
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92 NULL, /* create main configuration */ |
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93 NULL, /* init main configuration */ |
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94 |
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95 NULL, /* create server configuration */ |
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96 NULL, /* merge server configuration */ |
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97 |
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98 NULL, /* create location configuration */ |
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99 NULL, /* merge location configuration */ |
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100 }; |
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101 |
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102 |
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103 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 104 NGX_MODULE_V1, |
334
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105 &ngx_http_range_body_filter_module_ctx, /* module context */ |
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106 NULL, /* module directives */ |
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107 NGX_HTTP_MODULE, /* module type */ |
541 | 108 NULL, /* init master */ |
681 | 109 NULL, /* init module */ |
541 | 110 NULL, /* init process */ |
111 NULL, /* init thread */ | |
112 NULL, /* exit thread */ | |
113 NULL, /* exit process */ | |
114 NULL, /* exit master */ | |
115 NGX_MODULE_V1_PADDING | |
99
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116 }; |
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117 |
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118 |
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119 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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120 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
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121 |
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122 |
493 | 123 static ngx_int_t |
124 ngx_http_range_header_filter(ngx_http_request_t *r) | |
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125 { |
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126 u_char *p; |
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nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
231
diff
changeset
|
127 size_t len; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 off_t start, end; |
461 | 129 ngx_int_t rc; |
130 ngx_uint_t suffix, i; | |
495 | 131 ngx_atomic_uint_t boundary; |
461 | 132 ngx_table_elt_t *content_range; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 ngx_http_range_t *range; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 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
|
135 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
136 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
|
137 || r->headers_out.status != NGX_HTTP_OK |
597 | 138 || 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
|
139 || r->headers_out.content_length_n == -1 |
581 | 140 || !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
|
141 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
142 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
|
143 } |
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
144 |
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
145 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
|
146 || r->headers_in.range->value.len < 7 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 || ngx_strncasecmp(r->headers_in.range->value.data, "bytes=", 6) != 0) |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
148 { |
416
b9bd635011de
nginx-0.0.10-2004-09-06-22:45:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
149 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
415
3c56e834be46
nginx-0.0.10-2004-09-05-23:54:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
356
diff
changeset
|
150 if (r->headers_out.accept_ranges == NULL) { |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
151 return NGX_ERROR; |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
152 } |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
153 |
509 | 154 r->headers_out.accept_ranges->hash = 1; |
136
da00cde00e8a
nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
155 r->headers_out.accept_ranges->key.len = sizeof("Accept-Ranges") - 1; |
292
a472bfb778b3
nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
156 r->headers_out.accept_ranges->key.data = (u_char *) "Accept-Ranges"; |
136
da00cde00e8a
nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
157 r->headers_out.accept_ranges->value.len = sizeof("bytes") - 1; |
292
a472bfb778b3
nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
158 r->headers_out.accept_ranges->value.data = (u_char *) "bytes"; |
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); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
161 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 |
499 | 163 if (ngx_array_init(&r->headers_out.ranges, r->pool, 2, |
959 | 164 sizeof(ngx_http_range_t)) |
165 == NGX_ERROR) | |
461 | 166 { |
167 return NGX_ERROR; | |
168 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
170 rc = 0; |
103
6dfda4cf5200
nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
171 range = NULL; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
172 p = r->headers_in.range->value.data + 6; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 for ( ;; ) { |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
175 start = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
176 end = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
177 suffix = 0; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
178 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
179 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
180 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
181 if (*p != '-') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
182 if (*p < '0' || *p > '9') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
183 rc = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
184 break; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
185 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
187 while (*p >= '0' && *p <= '9') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
188 start = start * 10 + *p++ - '0'; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
189 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
190 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
191 while (*p == ' ') { p++; } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
192 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
193 if (*p++ != '-') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
194 rc = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
195 break; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
196 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
198 if (start >= r->headers_out.content_length_n) { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
199 rc = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
200 break; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
201 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
202 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
203 while (*p == ' ') { p++; } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
205 if (*p == ',' || *p == '\0') { |
501 | 206 range = ngx_array_push(&r->headers_out.ranges); |
207 if (range == NULL) { | |
461 | 208 return NGX_ERROR; |
209 } | |
210 | |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
211 range->start = start; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
212 range->end = r->headers_out.content_length_n; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
214 if (*p++ != ',') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
215 break; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
216 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
217 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 continue; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
221 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
222 suffix = 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
223 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
224 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
225 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
226 if (*p < '0' || *p > '9') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
227 rc = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
228 break; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
229 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
230 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
231 while (*p >= '0' && *p <= '9') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
232 end = end * 10 + *p++ - '0'; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
233 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
234 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
235 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
236 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
237 if (*p != ',' && *p != '\0') { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
238 rc = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
239 break; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
240 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
241 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
242 if (suffix) { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
243 start = r->headers_out.content_length_n - end; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
244 end = r->headers_out.content_length_n - 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
245 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
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246 |
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247 if (start > end) { |
99
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248 rc = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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249 break; |
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250 } |
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251 |
501 | 252 range = ngx_array_push(&r->headers_out.ranges); |
253 if (range == NULL) { | |
461 | 254 return NGX_ERROR; |
255 } | |
256 | |
99
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257 range->start = start; |
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258 |
231
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259 if (end >= r->headers_out.content_length_n) { |
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260 /* |
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261 * Download Accelerator sends the last byte position |
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262 * that equals to the file length |
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263 */ |
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264 range->end = r->headers_out.content_length_n; |
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265 |
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266 } else { |
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267 range->end = end + 1; |
99
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268 } |
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269 |
231
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270 if (*p++ != ',') { |
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271 break; |
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272 } |
99
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273 } |
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274 |
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275 if (rc) { |
160
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276 |
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277 /* rc == NGX_HTTP_RANGE_NOT_SATISFIABLE */ |
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278 |
99
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279 r->headers_out.status = rc; |
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280 r->headers_out.ranges.nelts = 0; |
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281 |
501 | 282 content_range = ngx_list_push(&r->headers_out.headers); |
283 if (content_range == NULL) { | |
165
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284 return NGX_ERROR; |
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285 } |
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286 |
461 | 287 r->headers_out.content_range = content_range; |
288 | |
509 | 289 content_range->hash = 1; |
461 | 290 content_range->key.len = sizeof("Content-Range") - 1; |
291 content_range->key.data = (u_char *) "Content-Range"; | |
99
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292 |
501 | 293 content_range->value.data = ngx_palloc(r->pool, |
294 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); | |
461 | 295 if (content_range->value.data == NULL) { |
415
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296 return NGX_ERROR; |
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297 } |
99
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298 |
461 | 299 content_range->value.len = ngx_sprintf(content_range->value.data, |
300 "bytes */%O", | |
301 r->headers_out.content_length_n) | |
302 - content_range->value.data; | |
99
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303 |
577 | 304 ngx_http_clear_content_length(r); |
99
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305 |
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306 return rc; |
461 | 307 } |
308 | |
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309 |
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310 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
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311 if (ctx == NULL) { |
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312 return NGX_ERROR; |
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313 } |
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314 |
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315 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
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316 |
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317 |
461 | 318 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
319 | |
320 if (r->headers_out.ranges.nelts == 1) { | |
321 | |
501 | 322 content_range = ngx_list_push(&r->headers_out.headers); |
323 if (content_range == NULL) { | |
461 | 324 return NGX_ERROR; |
325 } | |
326 | |
327 r->headers_out.content_range = content_range; | |
328 | |
509 | 329 content_range->hash = 1; |
461 | 330 content_range->key.len = sizeof("Content-Range") - 1; |
331 content_range->key.data = (u_char *) "Content-Range"; | |
332 | |
333 content_range->value.data = | |
334 ngx_palloc(r->pool, sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); | |
335 if (content_range->value.data == NULL) { | |
336 return NGX_ERROR; | |
337 } | |
338 | |
339 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ | |
340 | |
341 content_range->value.len = ngx_sprintf(content_range->value.data, | |
342 "bytes %O-%O/%O", | |
343 range->start, range->end - 1, | |
344 r->headers_out.content_length_n) | |
345 - content_range->value.data; | |
346 | |
347 r->headers_out.content_length_n = range->end - range->start; | |
348 | |
960 | 349 if (r->headers_out.content_length) { |
350 r->headers_out.content_length->hash = 0; | |
351 r->headers_out.content_length = NULL; | |
352 } | |
353 | |
461 | 354 return ngx_http_next_header_filter(r); |
355 } | |
356 | |
357 | |
358 /* TODO: what if no content_type ?? */ | |
359 | |
493 | 360 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
361 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 362 + r->headers_out.content_type.len |
461 | 363 + sizeof(CRLF "Content-Range: bytes ") - 1; |
364 | |
365 if (r->headers_out.charset.len) { | |
366 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
367 } | |
368 | |
501 | 369 ctx->boundary_header.data = ngx_palloc(r->pool, len); |
370 if (ctx->boundary_header.data == NULL) { | |
461 | 371 return NGX_ERROR; |
372 } | |
373 | |
493 | 374 boundary = ngx_next_temp_number(0); |
461 | 375 |
376 /* | |
377 * The boundary header of the range: | |
378 * CRLF | |
379 * "--0123456789" CRLF | |
380 * "Content-Type: image/jpeg" CRLF | |
381 * "Content-Range: bytes " | |
382 */ | |
383 | |
384 if (r->headers_out.charset.len) { | |
385 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 386 CRLF "--%0muA" CRLF |
461 | 387 "Content-Type: %V; charset=%V" CRLF |
388 "Content-Range: bytes ", | |
389 boundary, | |
509 | 390 &r->headers_out.content_type, |
461 | 391 &r->headers_out.charset) |
392 - ctx->boundary_header.data; | |
393 | |
394 r->headers_out.charset.len = 0; | |
99
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|
395 |
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|
396 } else { |
461 | 397 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 398 CRLF "--%0muA" CRLF |
461 | 399 "Content-Type: %V" CRLF |
400 "Content-Range: bytes ", | |
401 boundary, | |
509 | 402 &r->headers_out.content_type) |
461 | 403 - ctx->boundary_header.data; |
404 } | |
99
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parents:
diff
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|
405 |
509 | 406 r->headers_out.content_type.data = |
407 ngx_palloc(r->pool, | |
408 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
409 + NGX_ATOMIC_T_LEN); | |
165
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164
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|
410 |
509 | 411 if (r->headers_out.content_type.data == NULL) { |
461 | 412 return NGX_ERROR; |
413 } | |
99
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parents:
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|
414 |
461 | 415 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
99
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parents:
diff
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|
416 |
509 | 417 r->headers_out.content_type.len = |
418 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 419 "multipart/byteranges; boundary=%0muA", |
461 | 420 boundary) |
509 | 421 - r->headers_out.content_type.data; |
160
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|
422 |
493 | 423 |
461 | 424 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 425 |
426 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
99
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parents:
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|
427 |
461 | 428 range = r->headers_out.ranges.elts; |
429 for (i = 0; i < r->headers_out.ranges.nelts; i++) { | |
455 | 430 |
461 | 431 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 432 |
461 | 433 range[i].content_range.data = |
434 ngx_palloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); | |
99
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|
435 |
461 | 436 if (range[i].content_range.data == NULL) { |
437 return NGX_ERROR; | |
438 } | |
99
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parents:
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|
439 |
461 | 440 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
441 "%O-%O/%O" CRLF CRLF, | |
442 range[i].start, range[i].end - 1, | |
443 r->headers_out.content_length_n) | |
444 - range[i].content_range.data; | |
160
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|
445 |
461 | 446 len += ctx->boundary_header.len + range[i].content_range.len |
447 + (size_t) (range[i].end - range[i].start); | |
448 } | |
99
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|
449 |
461 | 450 r->headers_out.content_length_n = len; |
960 | 451 |
452 if (r->headers_out.content_length) { | |
453 r->headers_out.content_length->hash = 0; | |
454 r->headers_out.content_length = NULL; | |
455 } | |
99
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|
456 |
155
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457 return ngx_http_next_header_filter(r); |
99
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|
458 } |
a059e1aa65d4
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parents:
diff
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|
459 |
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|
460 |
493 | 461 static ngx_int_t |
462 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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parents:
diff
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|
463 { |
962
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|
464 off_t start, last; |
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|
465 ngx_buf_t *b, *buf; |
290
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231
diff
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|
466 ngx_uint_t i; |
155
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|
467 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
99
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|
468 ngx_http_range_t *range; |
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|
469 ngx_http_range_filter_ctx_t *ctx; |
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|
470 |
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471 if (in == NULL || r->headers_out.ranges.nelts == 0) { |
155
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|
472 return ngx_http_next_body_filter(r, in); |
99
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|
473 } |
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|
474 |
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|
475 buf = in->buf; |
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|
476 |
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477 if (ngx_buf_special(in->buf)) { |
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478 return ngx_http_next_body_filter(r, in); |
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|
479 } |
69754fb59ba1
support ranges for single memory buffer
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|
480 |
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481 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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482 if (ctx->offset) { |
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|
483 goto overlapped; |
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support ranges for single memory buffer
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diff
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|
484 } |
69754fb59ba1
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diff
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|
485 |
960 | 486 range = r->headers_out.ranges.elts; |
487 | |
488 if (!buf->last_buf) { | |
962
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|
489 |
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490 if (buf->in_file) { |
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491 start = buf->file_pos + ctx->offset; |
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492 last = buf->file_last + ctx->offset; |
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|
493 |
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|
494 } else { |
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|
495 start = buf->pos - buf->start + ctx->offset; |
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496 last = buf->last - buf->start + ctx->offset; |
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|
497 } |
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498 |
960 | 499 for (i = 0; i < r->headers_out.ranges.nelts; i++) { |
962
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500 if (start > range[i].start || last < range[i].end) { |
960 | 501 goto overlapped; |
502 } | |
503 } | |
504 } | |
505 | |
155
46eb23d9471d
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diff
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|
506 /* |
962
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|
507 * the optimized version for the responses |
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|
508 * that are passed in the single buffer |
155
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|
509 */ |
99
a059e1aa65d4
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parents:
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|
510 |
962
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511 ctx->offset = ngx_buf_size(buf); |
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512 |
960 | 513 if (r->headers_out.ranges.nelts == 1) { |
514 | |
962
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515 if (buf->in_file) { |
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516 buf->file_pos = range->start; |
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517 buf->file_last = range->end; |
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|
518 } |
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|
519 |
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520 if (ngx_buf_in_memory(buf)) { |
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521 buf->pos = buf->start + (size_t) range->start; |
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522 buf->last = buf->start + (size_t) range->end; |
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523 } |
960 | 524 |
525 return ngx_http_next_body_filter(r, in); | |
526 } | |
527 | |
528 ll = &out; | |
160
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155
diff
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|
529 |
960 | 530 for (i = 0; i < r->headers_out.ranges.nelts; i++) { |
99
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parents:
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|
531 |
960 | 532 /* |
533 * The boundary header of the range: | |
534 * CRLF | |
535 * "--0123456789" CRLF | |
536 * "Content-Type: image/jpeg" CRLF | |
537 * "Content-Range: bytes " | |
538 */ | |
539 | |
540 b = ngx_calloc_buf(r->pool); | |
541 if (b == NULL) { | |
542 return NGX_ERROR; | |
99
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parents:
diff
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|
543 } |
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parents:
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|
544 |
960 | 545 b->memory = 1; |
546 b->pos = ctx->boundary_header.data; | |
547 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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155
diff
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|
548 |
960 | 549 hcl = ngx_alloc_chain_link(r->pool); |
550 if (hcl == NULL) { | |
551 return NGX_ERROR; | |
552 } | |
461 | 553 |
960 | 554 hcl->buf = b; |
99
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|
555 |
461 | 556 |
960 | 557 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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diff
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|
558 |
501 | 559 b = ngx_calloc_buf(r->pool); |
560 if (b == NULL) { | |
461 | 561 return NGX_ERROR; |
562 } | |
563 | |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
335
diff
changeset
|
564 b->temporary = 1; |
960 | 565 b->pos = range[i].content_range.data; |
566 b->last = range[i].content_range.data + range[i].content_range.len; | |
567 | |
568 rcl = ngx_alloc_chain_link(r->pool); | |
569 if (rcl == NULL) { | |
570 return NGX_ERROR; | |
571 } | |
572 | |
573 rcl->buf = b; | |
574 | |
575 | |
576 /* the range data */ | |
461 | 577 |
960 | 578 b = ngx_calloc_buf(r->pool); |
579 if (b == NULL) { | |
580 return NGX_ERROR; | |
581 } | |
582 | |
962
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583 b->in_file = buf->in_file; |
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diff
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|
584 b->temporary = buf->temporary; |
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|
585 b->memory = buf->memory; |
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parents:
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diff
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|
586 b->mmap = buf->mmap; |
960 | 587 b->file = buf->file; |
588 | |
962
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diff
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|
589 if (buf->in_file) { |
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parents:
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diff
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|
590 buf->file_pos = range[i].start; |
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diff
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|
591 buf->file_last = range[i].end; |
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diff
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|
592 } |
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diff
changeset
|
593 |
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diff
changeset
|
594 if (ngx_buf_in_memory(buf)) { |
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diff
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|
595 buf->pos = buf->start + (size_t) range[i].start; |
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diff
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|
596 buf->last = buf->start + (size_t) range[i].end; |
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diff
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|
597 } |
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diff
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|
598 |
960 | 599 dcl = ngx_alloc_chain_link(r->pool); |
600 if (dcl == NULL) { | |
461 | 601 return NGX_ERROR; |
602 } | |
603 | |
960 | 604 dcl->buf = b; |
461 | 605 |
155
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153
diff
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|
606 *ll = hcl; |
960 | 607 hcl->next = rcl; |
608 rcl->next = dcl; | |
609 ll = &dcl->next; | |
610 } | |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
611 |
960 | 612 /* the last boundary CRLF "--0123456789--" CRLF */ |
613 | |
614 b = ngx_calloc_buf(r->pool); | |
615 if (b == NULL) { | |
616 return NGX_ERROR; | |
617 } | |
618 | |
619 b->temporary = 1; | |
620 b->last_buf = 1; | |
621 | |
622 b->pos = ngx_palloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN | |
623 + sizeof("--" CRLF) - 1); | |
624 if (b->pos == NULL) { | |
625 return NGX_ERROR; | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
626 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
627 |
960 | 628 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, 4 + 10); |
629 *b->last++ = '-'; *b->last++ = '-'; | |
630 *b->last++ = CR; *b->last++ = LF; | |
631 | |
632 hcl = ngx_alloc_chain_link(r->pool); | |
633 if (hcl == NULL) { | |
634 return NGX_ERROR; | |
635 } | |
636 | |
637 hcl->buf = b; | |
638 hcl->next = NULL; | |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
639 |
960 | 640 *ll = hcl; |
641 | |
642 return ngx_http_next_body_filter(r, out); | |
643 | |
644 overlapped: | |
645 | |
646 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
962
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Igor Sysoev <igor@sysoev.ru>
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diff
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|
647 "range in overlapped buffers"); |
960 | 648 |
649 return NGX_ERROR; | |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
650 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
651 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
652 |
493 | 653 static ngx_int_t |
681 | 654 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
655 { |
155
46eb23d9471d
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153
diff
changeset
|
656 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
a059e1aa65d4
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
657 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
|
658 |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
659 return NGX_OK; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
660 } |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
661 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
662 |
493 | 663 static ngx_int_t |
681 | 664 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
|
665 { |
155
46eb23d9471d
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parents:
153
diff
changeset
|
666 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
|
667 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
|
668 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
669 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
670 } |