Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_range_filter_module.c @ 4461:103587c7ae5f
Proxy: renamed some "proxy_redirect" related declarations to a more general and
reusable.
No functional changes.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Mon, 13 Feb 2012 10:42:44 +0000 |
parents | d620f497c50f |
children | 85a1570ce960 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 |
160
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13 /* |
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14 * the single part format: |
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15 * |
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16 * "HTTP/1.0 206 Partial Content" CRLF |
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17 * ... header ... |
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18 * "Content-Type: image/jpeg" CRLF |
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19 * "Content-Length: SIZE" CRLF |
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20 * "Content-Range: bytes START-END/SIZE" CRLF |
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21 * CRLF |
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22 * ... data ... |
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23 * |
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24 * |
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25 * the mutlipart format: |
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26 * |
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27 * "HTTP/1.0 206 Partial Content" CRLF |
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28 * ... header ... |
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29 * "Content-Type: multipart/byteranges; boundary=0123456789" CRLF |
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30 * CRLF |
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31 * CRLF |
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32 * "--0123456789" CRLF |
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33 * "Content-Type: image/jpeg" CRLF |
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34 * "Content-Range: bytes START0-END0/SIZE" CRLF |
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35 * CRLF |
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36 * ... data ... |
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37 * CRLF |
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38 * "--0123456789" CRLF |
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39 * "Content-Type: image/jpeg" CRLF |
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40 * "Content-Range: bytes START1-END1/SIZE" CRLF |
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41 * CRLF |
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42 * ... data ... |
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43 * CRLF |
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44 * "--0123456789--" CRLF |
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45 */ |
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46 |
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47 |
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48 typedef struct { |
963
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49 off_t start; |
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50 off_t end; |
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51 ngx_str_t content_range; |
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52 } ngx_http_range_t; |
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53 |
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54 |
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55 typedef struct { |
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56 off_t offset; |
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57 ngx_str_t boundary_header; |
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58 ngx_array_t ranges; |
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59 } ngx_http_range_filter_ctx_t; |
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60 |
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61 |
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62 static ngx_int_t ngx_http_range_parse(ngx_http_request_t *r, |
4062 | 63 ngx_http_range_filter_ctx_t *ctx, ngx_uint_t ranges); |
2118
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64 static ngx_int_t ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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65 ngx_http_range_filter_ctx_t *ctx); |
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66 static ngx_int_t ngx_http_range_multipart_header(ngx_http_request_t *r, |
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67 ngx_http_range_filter_ctx_t *ctx); |
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68 static ngx_int_t ngx_http_range_not_satisfiable(ngx_http_request_t *r); |
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69 static ngx_int_t ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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70 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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71 static ngx_int_t ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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72 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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73 static ngx_int_t ngx_http_range_multipart_body(ngx_http_request_t *r, |
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74 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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75 |
681 | 76 static ngx_int_t ngx_http_range_header_filter_init(ngx_conf_t *cf); |
77 static ngx_int_t ngx_http_range_body_filter_init(ngx_conf_t *cf); | |
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78 |
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79 |
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80 static ngx_http_module_t ngx_http_range_header_filter_module_ctx = { |
509 | 81 NULL, /* preconfiguration */ |
681 | 82 ngx_http_range_header_filter_init, /* postconfiguration */ |
177
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83 |
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84 NULL, /* create main configuration */ |
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85 NULL, /* init main configuration */ |
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86 |
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87 NULL, /* create server configuration */ |
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88 NULL, /* merge server configuration */ |
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89 |
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90 NULL, /* create location configuration */ |
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91 NULL, /* merge location configuration */ |
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92 }; |
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93 |
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94 |
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95 ngx_module_t ngx_http_range_header_filter_module = { |
509 | 96 NGX_MODULE_V1, |
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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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117 |
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nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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|
118 NULL, /* create server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
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|
119 NULL, /* merge server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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|
120 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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|
121 NULL, /* create location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
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|
122 NULL, /* merge location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
diff
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123 }; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
124 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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314
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|
125 |
af451db3fe99
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126 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 127 NGX_MODULE_V1, |
334
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128 &ngx_http_range_body_filter_module_ctx, /* module context */ |
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314
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129 NULL, /* module directives */ |
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130 NGX_HTTP_MODULE, /* module type */ |
541 | 131 NULL, /* init master */ |
681 | 132 NULL, /* init module */ |
541 | 133 NULL, /* init process */ |
134 NULL, /* init thread */ | |
135 NULL, /* exit thread */ | |
136 NULL, /* exit process */ | |
137 NULL, /* exit master */ | |
138 NGX_MODULE_V1_PADDING | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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139 }; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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140 |
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nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
141 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
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parents:
153
diff
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|
142 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
46eb23d9471d
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parents:
153
diff
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143 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
99
a059e1aa65d4
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parents:
diff
changeset
|
144 |
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nginx-0.0.1-2003-06-02-19:24:30 import
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145 |
493 | 146 static ngx_int_t |
147 ngx_http_range_header_filter(ngx_http_request_t *r) | |
99
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|
148 { |
1630 | 149 time_t if_range; |
4062 | 150 ngx_http_core_loc_conf_t *clcf; |
99
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151 ngx_http_range_filter_ctx_t *ctx; |
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parents:
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|
152 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
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155
diff
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153 if (r->http_version < NGX_HTTP_VERSION_10 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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154 || r->headers_out.status != NGX_HTTP_OK |
3331
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backout r3325: postpone filter is a body only filter
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diff
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|
155 || r != r->main |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
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|
156 || r->headers_out.content_length_n == -1 |
581 | 157 || !r->allow_ranges) |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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parents:
113
diff
changeset
|
158 { |
155
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153
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159 return ngx_http_next_header_filter(r); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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parents:
113
diff
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|
160 } |
f6e3c5d019b6
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113
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161 |
4062 | 162 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
163 | |
164 if (clcf->max_ranges == 0) { | |
165 return ngx_http_next_header_filter(r); | |
166 } | |
167 | |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
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113
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|
168 if (r->headers_in.range == NULL |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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|
169 || r->headers_in.range->value.len < 7 |
1107
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ngx_strcasecmp()/ngx_strncasecmp()
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170 || ngx_strncasecmp(r->headers_in.range->value.data, |
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|
171 (u_char *) "bytes=", 6) |
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|
172 != 0) |
99
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|
173 { |
1630 | 174 goto next_filter; |
175 } | |
176 | |
177 if (r->headers_in.if_range && r->headers_out.last_modified_time != -1) { | |
178 | |
179 if_range = ngx_http_parse_time(r->headers_in.if_range->value.data, | |
180 r->headers_in.if_range->value.len); | |
117
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|
181 |
1630 | 182 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
183 "http ir:%d lm:%d", | |
184 if_range, r->headers_out.last_modified_time); | |
117
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parents:
113
diff
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|
185 |
1630 | 186 if (if_range != r->headers_out.last_modified_time) { |
187 goto next_filter; | |
188 } | |
99
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|
189 } |
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|
190 |
963
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diff
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|
191 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
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|
192 if (ctx == NULL) { |
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193 return NGX_ERROR; |
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|
194 } |
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diff
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|
195 |
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|
196 if (ngx_array_init(&ctx->ranges, r->pool, 1, sizeof(ngx_http_range_t)) |
2536
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
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diff
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|
197 != NGX_OK) |
461 | 198 { |
199 return NGX_ERROR; | |
200 } | |
99
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201 |
4062 | 202 switch (ngx_http_range_parse(r, ctx, clcf->max_ranges)) { |
2118
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|
203 |
4035
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Now if total size of all ranges is greater than source response size,
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diff
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|
204 case NGX_OK: |
2118
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|
205 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
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|
206 |
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|
207 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
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a prelimiary proxy cache support
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diff
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|
208 r->headers_out.status_line.len = 0; |
2118
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|
209 |
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|
210 if (ctx->ranges.nelts == 1) { |
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211 return ngx_http_range_singlepart_header(r, ctx); |
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|
212 } |
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|
213 |
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|
214 return ngx_http_range_multipart_header(r, ctx); |
4035
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Now if total size of all ranges is greater than source response size,
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|
215 |
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Now if total size of all ranges is greater than source response size,
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diff
changeset
|
216 case NGX_HTTP_RANGE_NOT_SATISFIABLE: |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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|
217 return ngx_http_range_not_satisfiable(r); |
2118
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218 |
4035
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Now if total size of all ranges is greater than source response size,
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|
219 case NGX_ERROR: |
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|
220 return NGX_ERROR; |
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Now if total size of all ranges is greater than source response size,
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|
221 |
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Now if total size of all ranges is greater than source response size,
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|
222 default: /* NGX_DECLINED */ |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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|
223 break; |
2118
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|
224 } |
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|
225 |
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|
226 next_filter: |
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|
227 |
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|
228 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
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|
229 if (r->headers_out.accept_ranges == NULL) { |
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|
230 return NGX_ERROR; |
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|
231 } |
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|
232 |
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|
233 r->headers_out.accept_ranges->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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3331
diff
changeset
|
234 ngx_str_set(&r->headers_out.accept_ranges->key, "Accept-Ranges"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
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3331
diff
changeset
|
235 ngx_str_set(&r->headers_out.accept_ranges->value, "bytes"); |
2118
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|
236 |
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|
237 return ngx_http_next_header_filter(r); |
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|
238 } |
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|
239 |
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|
240 |
4058
d32a2000b766
ngx_http_range_parse() should be static.
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parents:
4057
diff
changeset
|
241 static ngx_int_t |
4062 | 242 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx, |
243 ngx_uint_t ranges) | |
2118
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|
244 { |
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changeset
|
245 u_char *p; |
4057
3205a6d6c6ec
Ranges processing small optimization.
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diff
changeset
|
246 off_t start, end, size, content_length; |
2118
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|
247 ngx_uint_t suffix; |
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|
248 ngx_http_range_t *range; |
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|
249 |
99
a059e1aa65d4
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diff
changeset
|
250 p = r->headers_in.range->value.data + 6; |
4035
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Now if total size of all ranges is greater than source response size,
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diff
changeset
|
251 size = 0; |
4057
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Ranges processing small optimization.
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diff
changeset
|
252 content_length = r->headers_out.content_length_n; |
99
a059e1aa65d4
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parents:
diff
changeset
|
253 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
changeset
|
254 for ( ;; ) { |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
255 start = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
256 end = 0; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
257 suffix = 0; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
258 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
259 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
260 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
261 if (*p != '-') { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
262 if (*p < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
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|
263 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
264 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
265 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
266 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
|
267 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
|
268 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
269 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
270 while (*p == ' ') { p++; } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
271 |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
272 if (*p++ != '-') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
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|
273 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
274 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
275 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
276 while (*p == ' ') { p++; } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
277 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
278 if (*p == ',' || *p == '\0') { |
4057
3205a6d6c6ec
Ranges processing small optimization.
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4056
diff
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|
279 end = content_length; |
4055
9cce506be97d
Ranges processing small optimization.
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4054
diff
changeset
|
280 goto found; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
283 } else { |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
284 suffix = 1; |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
285 p++; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
287 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
288 if (*p < '0' || *p > '9') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
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|
289 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
290 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
291 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
292 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
|
293 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
|
294 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
295 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
296 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
298 if (*p != ',' && *p != '\0') { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
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|
299 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
300 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
301 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
302 if (suffix) { |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
303 start = content_length - end; |
3205a6d6c6ec
Ranges processing small optimization.
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parents:
4056
diff
changeset
|
304 end = content_length - 1; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
305 } |
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
306 |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
307 if (end >= content_length) { |
3205a6d6c6ec
Ranges processing small optimization.
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parents:
4056
diff
changeset
|
308 end = content_length; |
4055
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
309 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
310 } else { |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
311 end++; |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
312 } |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
313 |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
314 found: |
9cce506be97d
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4054
diff
changeset
|
315 |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
316 if (start < end) { |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
317 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
|
318 if (range == NULL) { |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
319 return NGX_ERROR; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
320 } |
461 | 321 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
322 range->start = start; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
323 range->end = end; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
324 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
Igor Sysoev <igor@sysoev.ru>
parents:
4060
diff
changeset
|
325 size += end - start; |
4062 | 326 |
4063
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
Igor Sysoev <igor@sysoev.ru>
parents:
4062
diff
changeset
|
327 if (ranges-- == 0) { |
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
Igor Sysoev <igor@sysoev.ru>
parents:
4062
diff
changeset
|
328 return NGX_DECLINED; |
4062 | 329 } |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
330 } |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
331 |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
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parents:
195
diff
changeset
|
332 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
|
333 break; |
231
92db0aa1e83f
nginx-0.0.1-2004-01-16-21:29:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
334 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
335 } |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
336 |
4056
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
337 if (ctx->ranges.nelts == 0) { |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
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parents:
4055
diff
changeset
|
338 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
|
339 } |
e9213133993a
Now unsatisfiable ranges are processed according to RFC 2616.
Igor Sysoev <igor@sysoev.ru>
parents:
4055
diff
changeset
|
340 |
4057
3205a6d6c6ec
Ranges processing small optimization.
Igor Sysoev <igor@sysoev.ru>
parents:
4056
diff
changeset
|
341 if (size > content_length) { |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
342 return NGX_DECLINED; |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
343 } |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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parents:
3516
diff
changeset
|
344 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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parents:
3516
diff
changeset
|
345 return NGX_OK; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
346 } |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
347 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
348 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
349 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
350 ngx_http_range_singlepart_header(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
351 ngx_http_range_filter_ctx_t *ctx) |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
352 { |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
353 ngx_table_elt_t *content_range; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
354 ngx_http_range_t *range; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
355 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
356 content_range = ngx_list_push(&r->headers_out.headers); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
357 if (content_range == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
358 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
359 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
360 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
361 r->headers_out.content_range = content_range; |
461 | 362 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
363 content_range->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3331
diff
changeset
|
364 ngx_str_set(&content_range->key, "Content-Range"); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
365 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
366 content_range->value.data = ngx_pnalloc(r->pool, |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
367 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
368 if (content_range->value.data == NULL) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
369 return NGX_ERROR; |
461 | 370 } |
371 | |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
372 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 373 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
374 range = ctx->ranges.elts; |
461 | 375 |
2118
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376 content_range->value.len = ngx_sprintf(content_range->value.data, |
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377 "bytes %O-%O/%O", |
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378 range->start, range->end - 1, |
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379 r->headers_out.content_length_n) |
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380 - content_range->value.data; |
461 | 381 |
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382 r->headers_out.content_length_n = range->end - range->start; |
461 | 383 |
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384 if (r->headers_out.content_length) { |
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385 r->headers_out.content_length->hash = 0; |
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386 r->headers_out.content_length = NULL; |
461 | 387 } |
388 | |
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389 return ngx_http_next_header_filter(r); |
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390 } |
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391 |
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392 |
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393 static ngx_int_t |
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394 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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395 ngx_http_range_filter_ctx_t *ctx) |
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396 { |
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397 size_t len; |
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398 ngx_uint_t i; |
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399 ngx_http_range_t *range; |
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400 ngx_atomic_uint_t boundary; |
461 | 401 |
493 | 402 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
403 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 404 + r->headers_out.content_type.len |
461 | 405 + sizeof(CRLF "Content-Range: bytes ") - 1; |
406 | |
407 if (r->headers_out.charset.len) { | |
408 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
409 } | |
410 | |
2049 | 411 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 412 if (ctx->boundary_header.data == NULL) { |
461 | 413 return NGX_ERROR; |
414 } | |
415 | |
493 | 416 boundary = ngx_next_temp_number(0); |
461 | 417 |
418 /* | |
419 * The boundary header of the range: | |
420 * CRLF | |
421 * "--0123456789" CRLF | |
422 * "Content-Type: image/jpeg" CRLF | |
423 * "Content-Range: bytes " | |
424 */ | |
425 | |
426 if (r->headers_out.charset.len) { | |
427 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, | |
493 | 428 CRLF "--%0muA" CRLF |
461 | 429 "Content-Type: %V; charset=%V" CRLF |
430 "Content-Range: bytes ", | |
431 boundary, | |
509 | 432 &r->headers_out.content_type, |
461 | 433 &r->headers_out.charset) |
434 - ctx->boundary_header.data; | |
435 | |
436 r->headers_out.charset.len = 0; | |
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437 |
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438 } else if (r->headers_out.content_type.len) { |
461 | 439 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 440 CRLF "--%0muA" CRLF |
461 | 441 "Content-Type: %V" CRLF |
442 "Content-Range: bytes ", | |
443 boundary, | |
509 | 444 &r->headers_out.content_type) |
461 | 445 - ctx->boundary_header.data; |
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446 |
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447 } else { |
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448 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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449 CRLF "--%0muA" CRLF |
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450 "Content-Range: bytes ", |
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451 boundary) |
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452 - ctx->boundary_header.data; |
461 | 453 } |
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454 |
509 | 455 r->headers_out.content_type.data = |
2049 | 456 ngx_pnalloc(r->pool, |
457 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
458 + NGX_ATOMIC_T_LEN); | |
165
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459 |
509 | 460 if (r->headers_out.content_type.data == NULL) { |
461 | 461 return NGX_ERROR; |
462 } | |
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463 |
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464 r->headers_out.content_type_lowcase = NULL; |
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465 |
461 | 466 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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467 |
509 | 468 r->headers_out.content_type.len = |
469 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 470 "multipart/byteranges; boundary=%0muA", |
461 | 471 boundary) |
509 | 472 - r->headers_out.content_type.data; |
160
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473 |
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474 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 475 |
461 | 476 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 477 |
478 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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479 |
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480 range = ctx->ranges.elts; |
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481 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 482 |
461 | 483 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 484 |
461 | 485 range[i].content_range.data = |
2049 | 486 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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487 |
461 | 488 if (range[i].content_range.data == NULL) { |
489 return NGX_ERROR; | |
490 } | |
99
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491 |
461 | 492 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
493 "%O-%O/%O" CRLF CRLF, | |
494 range[i].start, range[i].end - 1, | |
495 r->headers_out.content_length_n) | |
496 - range[i].content_range.data; | |
160
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497 |
461 | 498 len += ctx->boundary_header.len + range[i].content_range.len |
499 + (size_t) (range[i].end - range[i].start); | |
500 } | |
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501 |
461 | 502 r->headers_out.content_length_n = len; |
960 | 503 |
504 if (r->headers_out.content_length) { | |
505 r->headers_out.content_length->hash = 0; | |
506 r->headers_out.content_length = NULL; | |
507 } | |
99
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508 |
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509 return ngx_http_next_header_filter(r); |
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510 } |
1630 | 511 |
512 | |
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513 static ngx_int_t |
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514 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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515 { |
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516 ngx_table_elt_t *content_range; |
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517 |
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518 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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519 |
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520 content_range = ngx_list_push(&r->headers_out.headers); |
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521 if (content_range == NULL) { |
1630 | 522 return NGX_ERROR; |
523 } | |
524 | |
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525 r->headers_out.content_range = content_range; |
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526 |
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527 content_range->hash = 1; |
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528 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 529 |
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530 content_range->value.data = ngx_pnalloc(r->pool, |
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531 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
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532 if (content_range->value.data == NULL) { |
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533 return NGX_ERROR; |
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534 } |
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535 |
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536 content_range->value.len = ngx_sprintf(content_range->value.data, |
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537 "bytes */%O", |
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538 r->headers_out.content_length_n) |
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539 - content_range->value.data; |
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540 |
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541 ngx_http_clear_content_length(r); |
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542 |
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543 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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544 } |
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545 |
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546 |
493 | 547 static ngx_int_t |
548 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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549 { |
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550 ngx_http_range_filter_ctx_t *ctx; |
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551 |
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552 if (in == NULL) { |
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553 return ngx_http_next_body_filter(r, in); |
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554 } |
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555 |
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556 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
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557 |
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558 if (ctx == NULL) { |
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559 return ngx_http_next_body_filter(r, in); |
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560 } |
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561 |
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562 if (ctx->ranges.nelts == 1) { |
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|
563 return ngx_http_range_singlepart_body(r, ctx, in); |
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|
564 } |
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support several buf's for single-part range
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diff
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|
565 |
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support several buf's for single-part range
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diff
changeset
|
566 /* |
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|
567 * multipart ranges are supported only if whole body is in a single buffer |
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|
568 */ |
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diff
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|
569 |
962
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diff
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|
570 if (ngx_buf_special(in->buf)) { |
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961
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571 return ngx_http_next_body_filter(r, in); |
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|
572 } |
69754fb59ba1
support ranges for single memory buffer
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diff
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|
573 |
2118
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diff
changeset
|
574 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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|
575 return NGX_ERROR; |
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|
576 } |
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diff
changeset
|
577 |
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diff
changeset
|
578 return ngx_http_range_multipart_body(r, ctx, in); |
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split ngx_http_range_filter_module
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diff
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|
579 } |
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split ngx_http_range_filter_module
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diff
changeset
|
580 |
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split ngx_http_range_filter_module
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parents:
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diff
changeset
|
581 |
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split ngx_http_range_filter_module
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diff
changeset
|
582 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
583 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
|
584 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
585 { |
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split ngx_http_range_filter_module
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diff
changeset
|
586 off_t start, last; |
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|
587 ngx_buf_t *buf; |
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diff
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|
588 ngx_uint_t i; |
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split ngx_http_range_filter_module
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diff
changeset
|
589 ngx_http_range_t *range; |
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diff
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|
590 |
962
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diff
changeset
|
591 if (ctx->offset) { |
69754fb59ba1
support ranges for single memory buffer
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diff
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|
592 goto overlapped; |
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support ranges for single memory buffer
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diff
changeset
|
593 } |
69754fb59ba1
support ranges for single memory buffer
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diff
changeset
|
594 |
2118
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diff
changeset
|
595 buf = in->buf; |
960 | 596 |
597 if (!buf->last_buf) { | |
962
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diff
changeset
|
598 |
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support ranges for single memory buffer
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diff
changeset
|
599 if (buf->in_file) { |
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diff
changeset
|
600 start = buf->file_pos + ctx->offset; |
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diff
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|
601 last = buf->file_last + ctx->offset; |
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support ranges for single memory buffer
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diff
changeset
|
602 |
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support ranges for single memory buffer
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diff
changeset
|
603 } else { |
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support ranges for single memory buffer
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diff
changeset
|
604 start = buf->pos - buf->start + ctx->offset; |
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parents:
961
diff
changeset
|
605 last = buf->last - buf->start + ctx->offset; |
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diff
changeset
|
606 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
607 |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
608 range = ctx->ranges.elts; |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
609 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
69754fb59ba1
support ranges for single memory buffer
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parents:
961
diff
changeset
|
610 if (start > range[i].start || last < range[i].end) { |
960 | 611 goto overlapped; |
612 } | |
613 } | |
614 } | |
615 | |
962
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diff
changeset
|
616 ctx->offset = ngx_buf_size(buf); |
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diff
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|
617 |
2118
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diff
changeset
|
618 return NGX_OK; |
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changeset
|
619 |
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diff
changeset
|
620 overlapped: |
960 | 621 |
2118
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diff
changeset
|
622 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
|
623 "range in overlapped buffers"); |
c1f589732d8c
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diff
changeset
|
624 |
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2049
diff
changeset
|
625 return NGX_ERROR; |
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diff
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|
626 } |
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diff
changeset
|
627 |
962
69754fb59ba1
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961
diff
changeset
|
628 |
2118
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parents:
2049
diff
changeset
|
629 static ngx_int_t |
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diff
changeset
|
630 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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diff
changeset
|
631 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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diff
changeset
|
632 { |
2121
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2119
diff
changeset
|
633 off_t start, last; |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
634 ngx_buf_t *buf; |
2121
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support several buf's for single-part range
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2119
diff
changeset
|
635 ngx_chain_t *out, *cl, **ll; |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
636 ngx_http_range_t *range; |
960 | 637 |
2121
b39c0040b3e4
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2119
diff
changeset
|
638 out = NULL; |
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support several buf's for single-part range
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diff
changeset
|
639 ll = &out; |
2118
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split ngx_http_range_filter_module
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diff
changeset
|
640 range = ctx->ranges.elts; |
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diff
changeset
|
641 |
2121
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
642 for (cl = in; cl; cl = cl->next) { |
b39c0040b3e4
support several buf's for single-part range
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parents:
2119
diff
changeset
|
643 |
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support several buf's for single-part range
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diff
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|
644 buf = cl->buf; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
645 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
646 start = ctx->offset; |
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support several buf's for single-part range
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diff
changeset
|
647 last = ctx->offset + ngx_buf_size(buf); |
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diff
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|
648 |
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support several buf's for single-part range
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diff
changeset
|
649 ctx->offset = last; |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
650 |
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support several buf's for single-part range
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diff
changeset
|
651 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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support several buf's for single-part range
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diff
changeset
|
652 "http range body buf: %O-%O", start, last); |
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support several buf's for single-part range
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diff
changeset
|
653 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
654 if (ngx_buf_special(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
655 *ll = cl; |
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support several buf's for single-part range
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diff
changeset
|
656 ll = &cl->next; |
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support several buf's for single-part range
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diff
changeset
|
657 continue; |
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support several buf's for single-part range
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diff
changeset
|
658 } |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
659 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
660 if (range->end <= start || range->start >= last) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
661 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
662 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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support several buf's for single-part range
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diff
changeset
|
663 "http range body skip"); |
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support several buf's for single-part range
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diff
changeset
|
664 |
2269 | 665 if (buf->in_file) { |
666 buf->file_pos = buf->file_last; | |
667 } | |
668 | |
2121
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support several buf's for single-part range
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diff
changeset
|
669 buf->pos = buf->last; |
2269 | 670 buf->sync = 1; |
671 | |
2121
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support several buf's for single-part range
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|
672 continue; |
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support several buf's for single-part range
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diff
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|
673 } |
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 (range->start > start) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
676 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
677 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
678 buf->file_pos += range->start - start; |
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support several buf's for single-part range
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diff
changeset
|
679 } |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
680 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
681 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
682 buf->pos += (size_t) (range->start - start); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
683 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
684 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
685 |
b39c0040b3e4
support several buf's for single-part range
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diff
changeset
|
686 if (range->end <= last) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
687 |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
688 if (buf->in_file) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
689 buf->file_last -= last - range->end; |
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support several buf's for single-part range
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2119
diff
changeset
|
690 } |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
691 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
692 if (ngx_buf_in_memory(buf)) { |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
693 buf->last -= (size_t) (last - range->end); |
b39c0040b3e4
support several buf's for single-part range
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2119
diff
changeset
|
694 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
695 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
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2119
diff
changeset
|
696 buf->last_buf = 1; |
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697 *ll = cl; |
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698 cl->next = NULL; |
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699 |
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700 break; |
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701 } |
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702 |
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703 *ll = cl; |
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704 ll = &cl->next; |
960 | 705 } |
706 | |
2121
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707 if (out == NULL) { |
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708 return NGX_OK; |
2118
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709 } |
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710 |
2121
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711 return ngx_http_next_body_filter(r, out); |
2118
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712 } |
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713 |
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714 |
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715 static ngx_int_t |
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716 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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717 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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718 { |
2592
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719 off_t body_start; |
2118
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720 ngx_buf_t *b, *buf; |
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721 ngx_uint_t i; |
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722 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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723 ngx_http_range_t *range; |
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|
724 |
960 | 725 ll = &out; |
2118
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726 buf = in->buf; |
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727 range = ctx->ranges.elts; |
160
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728 |
2592
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729 #if (NGX_HTTP_CACHE) |
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730 body_start = r->cached ? r->cache->body_start : 0; |
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731 #else |
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732 body_start = 0; |
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733 #endif |
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734 |
963
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735 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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736 |
960 | 737 /* |
738 * The boundary header of the range: | |
739 * CRLF | |
740 * "--0123456789" CRLF | |
741 * "Content-Type: image/jpeg" CRLF | |
742 * "Content-Range: bytes " | |
743 */ | |
744 | |
745 b = ngx_calloc_buf(r->pool); | |
746 if (b == NULL) { | |
747 return NGX_ERROR; | |
99
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|
748 } |
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749 |
960 | 750 b->memory = 1; |
751 b->pos = ctx->boundary_header.data; | |
752 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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753 |
960 | 754 hcl = ngx_alloc_chain_link(r->pool); |
755 if (hcl == NULL) { | |
756 return NGX_ERROR; | |
757 } | |
461 | 758 |
960 | 759 hcl->buf = b; |
99
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760 |
461 | 761 |
960 | 762 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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763 |
501 | 764 b = ngx_calloc_buf(r->pool); |
765 if (b == NULL) { | |
461 | 766 return NGX_ERROR; |
767 } | |
768 | |
343
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769 b->temporary = 1; |
960 | 770 b->pos = range[i].content_range.data; |
771 b->last = range[i].content_range.data + range[i].content_range.len; | |
772 | |
773 rcl = ngx_alloc_chain_link(r->pool); | |
774 if (rcl == NULL) { | |
775 return NGX_ERROR; | |
776 } | |
777 | |
778 rcl->buf = b; | |
779 | |
780 | |
781 /* the range data */ | |
461 | 782 |
960 | 783 b = ngx_calloc_buf(r->pool); |
784 if (b == NULL) { | |
785 return NGX_ERROR; | |
786 } | |
787 | |
962
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|
788 b->in_file = buf->in_file; |
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789 b->temporary = buf->temporary; |
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|
790 b->memory = buf->memory; |
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|
791 b->mmap = buf->mmap; |
960 | 792 b->file = buf->file; |
793 | |
962
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changeset
|
794 if (buf->in_file) { |
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|
795 b->file_pos = body_start + range[i].start; |
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|
796 b->file_last = body_start + range[i].end; |
962
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diff
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|
797 } |
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diff
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|
798 |
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diff
changeset
|
799 if (ngx_buf_in_memory(buf)) { |
1093 | 800 b->pos = buf->start + (size_t) range[i].start; |
801 b->last = buf->start + (size_t) range[i].end; | |
962
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|
802 } |
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changeset
|
803 |
960 | 804 dcl = ngx_alloc_chain_link(r->pool); |
805 if (dcl == NULL) { | |
461 | 806 return NGX_ERROR; |
807 } | |
808 | |
960 | 809 dcl->buf = b; |
461 | 810 |
155
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|
811 *ll = hcl; |
960 | 812 hcl->next = rcl; |
813 rcl->next = dcl; | |
814 ll = &dcl->next; | |
815 } | |
99
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|
816 |
960 | 817 /* the last boundary CRLF "--0123456789--" CRLF */ |
818 | |
819 b = ngx_calloc_buf(r->pool); | |
820 if (b == NULL) { | |
821 return NGX_ERROR; | |
822 } | |
823 | |
824 b->temporary = 1; | |
825 b->last_buf = 1; | |
826 | |
2049 | 827 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
828 + sizeof("--" CRLF) - 1); | |
960 | 829 if (b->pos == NULL) { |
830 return NGX_ERROR; | |
99
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|
831 } |
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diff
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|
832 |
1195
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1107
diff
changeset
|
833 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
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|
834 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 835 *b->last++ = '-'; *b->last++ = '-'; |
836 *b->last++ = CR; *b->last++ = LF; | |
837 | |
838 hcl = ngx_alloc_chain_link(r->pool); | |
839 if (hcl == NULL) { | |
840 return NGX_ERROR; | |
841 } | |
842 | |
843 hcl->buf = b; | |
844 hcl->next = NULL; | |
99
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|
845 |
960 | 846 *ll = hcl; |
847 | |
848 return ngx_http_next_body_filter(r, out); | |
99
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|
849 } |
a059e1aa65d4
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|
850 |
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|
851 |
493 | 852 static ngx_int_t |
681 | 853 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
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|
854 { |
155
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153
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|
855 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
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|
856 ngx_http_top_header_filter = ngx_http_range_header_filter; |
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|
857 |
334
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314
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|
858 return NGX_OK; |
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|
859 } |
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|
860 |
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|
861 |
493 | 862 static ngx_int_t |
681 | 863 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
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diff
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|
864 { |
155
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|
865 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
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changeset
|
866 ngx_http_top_body_filter = ngx_http_range_body_filter; |
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diff
changeset
|
867 |
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changeset
|
868 return NGX_OK; |
a059e1aa65d4
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diff
changeset
|
869 } |