Mercurial > hg > nginx-quic
annotate src/http/ngx_http_postpone_filter_module.c @ 4160:88369902edb1 stable-1.0
Merging r4010, r4065:
SSL related fixes:
*) 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
*) Proper SSL shutdown handling.
If connection has unsent alerts, SSL_shutdown() tries to send them even
if SSL_set_shutdown(SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN) was used.
This can be prevented by SSL_set_quiet_shutdown(). SSL_set_shutdown()
is required nevertheless to preserve session.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 30 Sep 2011 13:42:59 +0000 |
parents | 23e6f26fb4bd |
children | d620f497c50f |
rev | line source |
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509 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 | |
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12 static ngx_int_t ngx_http_postpone_filter_add(ngx_http_request_t *r, |
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13 ngx_chain_t *in); |
681 | 14 static ngx_int_t ngx_http_postpone_filter_init(ngx_conf_t *cf); |
509 | 15 |
16 | |
17 static ngx_http_module_t ngx_http_postpone_filter_module_ctx = { | |
18 NULL, /* preconfiguration */ | |
681 | 19 ngx_http_postpone_filter_init, /* postconfiguration */ |
509 | 20 |
21 NULL, /* create main configuration */ | |
22 NULL, /* init main configuration */ | |
23 | |
24 NULL, /* create server configuration */ | |
25 NULL, /* merge server configuration */ | |
26 | |
27 NULL, /* create location configuration */ | |
28 NULL /* merge location configuration */ | |
29 }; | |
30 | |
31 | |
32 ngx_module_t ngx_http_postpone_filter_module = { | |
33 NGX_MODULE_V1, | |
34 &ngx_http_postpone_filter_module_ctx, /* module context */ | |
35 NULL, /* module directives */ | |
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 | |
509 | 45 }; |
46 | |
47 | |
48 static ngx_http_output_body_filter_pt ngx_http_next_filter; | |
49 | |
50 | |
51 static ngx_int_t | |
52 ngx_http_postpone_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
53 { | |
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54 ngx_connection_t *c; |
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55 ngx_http_postponed_request_t *pr; |
509 | 56 |
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57 c = r->connection; |
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58 |
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59 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, |
583 | 60 "http postpone filter \"%V?%V\" %p", &r->uri, &r->args, in); |
527 | 61 |
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62 if (r != c->data) { |
509 | 63 |
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64 if (in) { |
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65 ngx_http_postpone_filter_add(r, in); |
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66 return NGX_OK; |
509 | 67 } |
68 | |
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69 #if 0 |
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70 /* TODO: SSI may pass NULL */ |
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71 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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72 "http postpone filter NULL inactive request", |
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73 &r->uri, &r->args); |
641 | 74 #endif |
75 | |
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76 return NGX_OK; |
583 | 77 } |
78 | |
79 if (r->postponed == NULL) { | |
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80 |
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81 if (in || c->buffered) { |
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82 return ngx_http_next_filter(r->main, in); |
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83 } |
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84 |
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85 return NGX_OK; |
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86 } |
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87 |
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88 if (in) { |
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89 ngx_http_postpone_filter_add(r, in); |
583 | 90 } |
91 | |
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92 do { |
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93 pr = r->postponed; |
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94 |
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95 if (pr->request) { |
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96 |
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97 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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98 "http postpone filter wake \"%V?%V\"", |
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99 &pr->request->uri, &pr->request->args); |
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100 |
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101 r->postponed = pr->next; |
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102 |
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103 c->data = pr->request; |
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104 |
3064 | 105 return ngx_http_post_request(pr->request, NULL); |
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106 } |
583 | 107 |
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108 if (pr->out == NULL) { |
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109 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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110 "http postpone filter NULL output", |
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111 &r->uri, &r->args); |
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112 |
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113 } else { |
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114 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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115 "http postpone filter output \"%V?%V\"", |
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116 &r->uri, &r->args); |
509 | 117 |
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118 if (ngx_http_next_filter(r->main, pr->out) == NGX_ERROR) { |
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119 return NGX_ERROR; |
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120 } |
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121 } |
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122 |
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123 r->postponed = pr->next; |
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124 |
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125 } while (r->postponed); |
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126 |
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127 return NGX_OK; |
509 | 128 } |
129 | |
130 | |
131 static ngx_int_t | |
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132 ngx_http_postpone_filter_add(ngx_http_request_t *r, ngx_chain_t *in) |
583 | 133 { |
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134 ngx_http_postponed_request_t *pr, **ppr; |
583 | 135 |
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136 if (r->postponed) { |
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137 for (pr = r->postponed; pr->next; pr = pr->next) { /* void */ } |
583 | 138 |
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139 if (pr->request == NULL) { |
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140 goto found; |
583 | 141 } |
142 | |
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143 ppr = &pr->next; |
583 | 144 |
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145 } else { |
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146 ppr = &r->postponed; |
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147 } |
595 | 148 |
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149 pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t)); |
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150 if (pr == NULL) { |
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151 return NGX_ERROR; |
583 | 152 } |
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153 |
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154 *ppr = pr; |
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155 |
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156 pr->request = NULL; |
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157 pr->out = NULL; |
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158 pr->next = NULL; |
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159 |
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160 found: |
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161 |
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162 if (ngx_chain_add_copy(r->pool, &pr->out, in) == NGX_OK) { |
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163 return NGX_OK; |
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164 } |
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165 |
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166 return NGX_ERROR; |
583 | 167 } |
168 | |
169 | |
170 static ngx_int_t | |
681 | 171 ngx_http_postpone_filter_init(ngx_conf_t *cf) |
509 | 172 { |
173 ngx_http_next_filter = ngx_http_top_body_filter; | |
174 ngx_http_top_body_filter = ngx_http_postpone_filter; | |
175 | |
176 return NGX_OK; | |
177 } |