Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_not_modified_filter_module.c @ 4009:3183165283cc
Fixing proxy_set_body and proxy_pass_request_body with SSL.
Flush flag wasn't set in constructed buffer and this prevented any data
from being actually sent to upstream due to SSL buffering. Make sure
we always set flush in the last buffer we are going to sent.
See here for report:
http://nginx.org/pipermail/nginx-ru/2011-June/041552.html
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 18 Aug 2011 16:34:24 +0000 |
parents | 80cc7c8bb845 |
children | d620f497c50f |
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 |
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 |
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11 |
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12 static ngx_int_t ngx_http_test_precondition(ngx_http_request_t *r); |
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13 static ngx_int_t ngx_http_test_not_modified(ngx_http_request_t *r); |
681 | 14 static ngx_int_t ngx_http_not_modified_filter_init(ngx_conf_t *cf); |
135
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15 |
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16 |
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17 static ngx_http_module_t ngx_http_not_modified_filter_module_ctx = { |
509 | 18 NULL, /* preconfiguration */ |
681 | 19 ngx_http_not_modified_filter_init, /* postconfiguration */ |
177
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20 |
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21 NULL, /* create main configuration */ |
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22 NULL, /* init main configuration */ |
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23 |
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24 NULL, /* create server configuration */ |
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25 NULL, /* merge server configuration */ |
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26 |
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27 NULL, /* create location configuration */ |
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28 NULL /* merge location configuration */ |
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29 }; |
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30 |
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31 |
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32 ngx_module_t ngx_http_not_modified_filter_module = { |
509 | 33 NGX_MODULE_V1, |
135
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34 &ngx_http_not_modified_filter_module_ctx, /* module context */ |
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35 NULL, /* module directives */ |
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36 NGX_HTTP_MODULE, /* module type */ |
541 | 37 NULL, /* init master */ |
681 | 38 NULL, /* init module */ |
541 | 39 NULL, /* init process */ |
40 NULL, /* init thread */ | |
41 NULL, /* exit thread */ | |
42 NULL, /* exit process */ | |
43 NULL, /* exit master */ | |
44 NGX_MODULE_V1_PADDING | |
135
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45 }; |
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46 |
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47 |
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48 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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49 |
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50 |
2702 | 51 static ngx_int_t |
52 ngx_http_not_modified_header_filter(ngx_http_request_t *r) | |
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53 { |
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54 if (r->headers_out.status != NGX_HTTP_OK |
597 | 55 || r != r->main |
142
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56 || r->headers_out.last_modified_time == -1) |
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57 { |
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58 return ngx_http_next_header_filter(r); |
135
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59 } |
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60 |
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61 if (r->headers_in.if_unmodified_since) { |
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62 return ngx_http_test_precondition(r); |
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63 } |
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64 |
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65 if (r->headers_in.if_modified_since) { |
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66 return ngx_http_test_not_modified(r); |
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67 } |
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68 |
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69 return ngx_http_next_header_filter(r); |
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70 } |
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71 |
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72 |
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73 static ngx_int_t |
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74 ngx_http_test_precondition(ngx_http_request_t *r) |
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75 { |
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76 time_t iums; |
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77 |
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78 iums = ngx_http_parse_time(r->headers_in.if_unmodified_since->value.data, |
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79 r->headers_in.if_unmodified_since->value.len); |
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80 |
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81 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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82 "http iums:%d lm:%d", iums, r->headers_out.last_modified_time); |
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83 |
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84 if (iums >= r->headers_out.last_modified_time) { |
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85 return ngx_http_next_header_filter(r); |
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86 } |
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87 |
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88 return ngx_http_filter_finalize_request(r, NULL, |
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89 NGX_HTTP_PRECONDITION_FAILED); |
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90 } |
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91 |
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92 |
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93 static ngx_int_t |
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94 ngx_http_test_not_modified(ngx_http_request_t *r) |
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95 { |
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96 time_t ims; |
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97 ngx_http_core_loc_conf_t *clcf; |
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98 |
2496 | 99 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
100 | |
101 if (clcf->if_modified_since == NGX_HTTP_IMS_OFF) { | |
102 return ngx_http_next_header_filter(r); | |
103 } | |
104 | |
135
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105 ims = ngx_http_parse_time(r->headers_in.if_modified_since->value.data, |
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106 r->headers_in.if_modified_since->value.len); |
577 | 107 |
257
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108 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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109 "http ims:%d lm:%d", ims, r->headers_out.last_modified_time); |
135
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110 |
2361 | 111 if (ims != r->headers_out.last_modified_time) { |
112 | |
2496 | 113 if (clcf->if_modified_since == NGX_HTTP_IMS_EXACT |
2361 | 114 || ims < r->headers_out.last_modified_time) |
115 { | |
116 return ngx_http_next_header_filter(r); | |
117 } | |
135
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118 } |
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119 |
2361 | 120 r->headers_out.status = NGX_HTTP_NOT_MODIFIED; |
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121 r->headers_out.status_line.len = 0; |
2361 | 122 r->headers_out.content_type.len = 0; |
123 ngx_http_clear_content_length(r); | |
124 ngx_http_clear_accept_ranges(r); | |
125 | |
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126 if (r->headers_out.content_encoding) { |
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127 r->headers_out.content_encoding->hash = 0; |
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128 r->headers_out.content_encoding = NULL; |
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129 } |
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130 |
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131 return ngx_http_next_header_filter(r); |
135
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132 } |
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133 |
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134 |
2702 | 135 static ngx_int_t |
136 ngx_http_not_modified_filter_init(ngx_conf_t *cf) | |
135
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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137 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
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138 ngx_http_next_header_filter = ngx_http_top_header_filter; |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 ngx_http_top_header_filter = ngx_http_not_modified_header_filter; |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 return NGX_OK; |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 } |