Mercurial > hg > nginx
annotate src/http/ngx_http_postpone_filter_module.c @ 7361:c09c7d47acb9
SSL: logging level of "no suitable signature algorithm".
The "no suitable signature algorithm" errors are reported by OpenSSL 1.1.1
when using TLSv1.3 if there are no shared signature algorithms. In
particular, this can happen if the client limits available signature
algorithms to something we don't have a certificate for, or to an empty
list. For example, the following command:
openssl s_client -connect 127.0.0.1:8443 -sigalgs rsa_pkcs1_sha1
will always result in the "no suitable signature algorithm" error
as the "rsa_pkcs1_sha1" algorithm refers solely to signatures which
appear in certificates and not defined for use in TLS 1.3 handshake
messages.
The SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS error is what BoringSSL returns
in the same situation.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 25 Sep 2018 14:00:04 +0300 |
parents | 43585e0e12a3 |
children |
rev | line source |
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509 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
509 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
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13 static ngx_int_t ngx_http_postpone_filter_add(ngx_http_request_t *r, |
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14 ngx_chain_t *in); |
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15 static ngx_int_t ngx_http_postpone_filter_in_memory(ngx_http_request_t *r, |
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16 ngx_chain_t *in); |
681 | 17 static ngx_int_t ngx_http_postpone_filter_init(ngx_conf_t *cf); |
509 | 18 |
19 | |
20 static ngx_http_module_t ngx_http_postpone_filter_module_ctx = { | |
21 NULL, /* preconfiguration */ | |
681 | 22 ngx_http_postpone_filter_init, /* postconfiguration */ |
509 | 23 |
24 NULL, /* create main configuration */ | |
25 NULL, /* init main configuration */ | |
26 | |
27 NULL, /* create server configuration */ | |
28 NULL, /* merge server configuration */ | |
29 | |
30 NULL, /* create location configuration */ | |
31 NULL /* merge location configuration */ | |
32 }; | |
33 | |
34 | |
35 ngx_module_t ngx_http_postpone_filter_module = { | |
36 NGX_MODULE_V1, | |
37 &ngx_http_postpone_filter_module_ctx, /* module context */ | |
38 NULL, /* module directives */ | |
39 NGX_HTTP_MODULE, /* module type */ | |
541 | 40 NULL, /* init master */ |
681 | 41 NULL, /* init module */ |
541 | 42 NULL, /* init process */ |
43 NULL, /* init thread */ | |
44 NULL, /* exit thread */ | |
45 NULL, /* exit process */ | |
46 NULL, /* exit master */ | |
47 NGX_MODULE_V1_PADDING | |
509 | 48 }; |
49 | |
50 | |
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51 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
509 | 52 |
53 | |
54 static ngx_int_t | |
55 ngx_http_postpone_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
56 { | |
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57 ngx_connection_t *c; |
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58 ngx_http_postponed_request_t *pr; |
509 | 59 |
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60 c = r->connection; |
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61 |
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62 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, |
583 | 63 "http postpone filter \"%V?%V\" %p", &r->uri, &r->args, in); |
527 | 64 |
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65 if (r->subrequest_in_memory) { |
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66 return ngx_http_postpone_filter_in_memory(r, in); |
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67 } |
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68 |
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69 if (r != c->data) { |
509 | 70 |
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71 if (in) { |
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72 if (ngx_http_postpone_filter_add(r, in) != NGX_OK) { |
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73 return NGX_ERROR; |
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74 } |
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75 |
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76 return NGX_OK; |
509 | 77 } |
78 | |
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79 #if 0 |
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80 /* TODO: SSI may pass NULL */ |
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81 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
5218 | 82 "http postpone filter NULL inactive request"); |
641 | 83 #endif |
84 | |
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85 return NGX_OK; |
583 | 86 } |
87 | |
88 if (r->postponed == NULL) { | |
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89 |
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90 if (in || c->buffered) { |
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91 return ngx_http_next_body_filter(r->main, in); |
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92 } |
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93 |
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94 return NGX_OK; |
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95 } |
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96 |
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97 if (in) { |
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98 if (ngx_http_postpone_filter_add(r, in) != NGX_OK) { |
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99 return NGX_ERROR; |
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100 } |
583 | 101 } |
102 | |
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103 do { |
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104 pr = r->postponed; |
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105 |
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106 if (pr->request) { |
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107 |
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108 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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109 "http postpone filter wake \"%V?%V\"", |
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110 &pr->request->uri, &pr->request->args); |
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111 |
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112 r->postponed = pr->next; |
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113 |
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114 c->data = pr->request; |
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115 |
3064 | 116 return ngx_http_post_request(pr->request, NULL); |
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117 } |
583 | 118 |
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119 if (pr->out == NULL) { |
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120 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
5218 | 121 "http postpone filter NULL output"); |
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122 |
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123 } else { |
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124 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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125 "http postpone filter output \"%V?%V\"", |
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126 &r->uri, &r->args); |
509 | 127 |
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128 if (ngx_http_next_body_filter(r->main, pr->out) == NGX_ERROR) { |
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129 return NGX_ERROR; |
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130 } |
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131 } |
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132 |
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133 r->postponed = pr->next; |
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134 |
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135 } while (r->postponed); |
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136 |
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137 return NGX_OK; |
509 | 138 } |
139 | |
140 | |
141 static ngx_int_t | |
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142 ngx_http_postpone_filter_add(ngx_http_request_t *r, ngx_chain_t *in) |
583 | 143 { |
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144 ngx_http_postponed_request_t *pr, **ppr; |
583 | 145 |
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146 if (r->postponed) { |
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147 for (pr = r->postponed; pr->next; pr = pr->next) { /* void */ } |
583 | 148 |
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149 if (pr->request == NULL) { |
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150 goto found; |
583 | 151 } |
152 | |
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153 ppr = &pr->next; |
583 | 154 |
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155 } else { |
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156 ppr = &r->postponed; |
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157 } |
595 | 158 |
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159 pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t)); |
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160 if (pr == NULL) { |
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161 return NGX_ERROR; |
583 | 162 } |
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163 |
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164 *ppr = pr; |
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165 |
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166 pr->request = NULL; |
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167 pr->out = NULL; |
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168 pr->next = NULL; |
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169 |
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170 found: |
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171 |
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172 if (ngx_chain_add_copy(r->pool, &pr->out, in) == NGX_OK) { |
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173 return NGX_OK; |
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174 } |
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175 |
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176 return NGX_ERROR; |
583 | 177 } |
178 | |
179 | |
180 static ngx_int_t | |
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181 ngx_http_postpone_filter_in_memory(ngx_http_request_t *r, ngx_chain_t *in) |
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182 { |
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183 size_t len; |
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184 ngx_buf_t *b; |
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185 ngx_connection_t *c; |
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186 ngx_http_core_loc_conf_t *clcf; |
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187 |
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188 c = r->connection; |
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189 |
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190 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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191 "http postpone filter in memory"); |
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192 |
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193 if (r->out == NULL) { |
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194 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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195 |
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196 if (r->headers_out.content_length_n != -1) { |
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197 len = r->headers_out.content_length_n; |
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198 |
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199 if (len > clcf->subrequest_output_buffer_size) { |
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200 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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201 "too big subrequest response: %uz", len); |
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202 return NGX_ERROR; |
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203 } |
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204 |
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205 } else { |
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206 len = clcf->subrequest_output_buffer_size; |
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207 } |
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208 |
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209 b = ngx_create_temp_buf(r->pool, len); |
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210 if (b == NULL) { |
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211 return NGX_ERROR; |
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212 } |
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213 |
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214 b->last_buf = 1; |
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215 |
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216 r->out = ngx_alloc_chain_link(r->pool); |
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217 if (r->out == NULL) { |
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218 return NGX_ERROR; |
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219 } |
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220 |
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221 r->out->buf = b; |
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222 r->out->next = NULL; |
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223 } |
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224 |
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225 b = r->out->buf; |
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226 |
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227 for ( /* void */ ; in; in = in->next) { |
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228 |
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229 if (ngx_buf_special(in->buf)) { |
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230 continue; |
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231 } |
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232 |
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233 len = in->buf->last - in->buf->pos; |
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234 |
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235 if (len > (size_t) (b->end - b->last)) { |
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236 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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237 "too big subrequest response"); |
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238 return NGX_ERROR; |
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239 } |
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240 |
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241 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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242 "http postpone filter in memory %uz bytes", len); |
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243 |
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244 b->last = ngx_cpymem(b->last, in->buf->pos, len); |
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245 in->buf->pos = in->buf->last; |
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246 } |
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247 |
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248 return NGX_OK; |
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249 } |
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250 |
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251 |
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252 static ngx_int_t |
681 | 253 ngx_http_postpone_filter_init(ngx_conf_t *cf) |
509 | 254 { |
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255 ngx_http_next_body_filter = ngx_http_top_body_filter; |
509 | 256 ngx_http_top_body_filter = ngx_http_postpone_filter; |
257 | |
258 return NGX_OK; | |
259 } |