Mercurial > hg > nginx
annotate src/http/ngx_http_config.h @ 6749:f88a145b093e stable-1.10
HTTP/2: the "421 Misdirected Request" response (closes #848).
Since 4fbef397c753 nginx rejects with the 400 error any attempts of
requesting different host over the same connection, if the relevant
virtual server requires verification of a client certificate.
While requesting hosts other than negotiated isn't something legal
in HTTP/1.x, the HTTP/2 specification explicitly permits such requests
for connection reuse and has introduced a special response code 421.
According to RFC 7540 Section 9.1.2 this code can be sent by a server
that is not configured to produce responses for the combination of
scheme and authority that are included in the request URI. And the
client may retry the request over a different connection.
Now this code is used for requests that aren't authorized in current
connection. After receiving the 421 response a client will be able
to open a new connection, provide the required certificate and retry
the request.
Unfortunately, not all clients currently are able to handle it well.
Notably Chrome just shows an error, while at least the latest version
of Firefox retries the request over a new connection.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Fri, 20 May 2016 18:41:17 +0300 |
parents | d620f497c50f |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_HTTP_CONFIG_H_INCLUDED_ |
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9 #define _NGX_HTTP_CONFIG_H_INCLUDED_ |
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521 | 12 #include <ngx_config.h> |
13 #include <ngx_core.h> | |
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14 #include <ngx_http.h> |
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17 typedef struct { |
591 | 18 void **main_conf; |
19 void **srv_conf; | |
20 void **loc_conf; | |
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21 } ngx_http_conf_ctx_t; |
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24 typedef struct { |
509 | 25 ngx_int_t (*preconfiguration)(ngx_conf_t *cf); |
26 ngx_int_t (*postconfiguration)(ngx_conf_t *cf); | |
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28 void *(*create_main_conf)(ngx_conf_t *cf); |
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29 char *(*init_main_conf)(ngx_conf_t *cf, void *conf); |
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31 void *(*create_srv_conf)(ngx_conf_t *cf); |
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32 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, void *conf); |
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34 void *(*create_loc_conf)(ngx_conf_t *cf); |
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35 char *(*merge_loc_conf)(ngx_conf_t *cf, void *prev, void *conf); |
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36 } ngx_http_module_t; |
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39 #define NGX_HTTP_MODULE 0x50545448 /* "HTTP" */ |
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41 #define NGX_HTTP_MAIN_CONF 0x02000000 |
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42 #define NGX_HTTP_SRV_CONF 0x04000000 |
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43 #define NGX_HTTP_LOC_CONF 0x08000000 |
485 | 44 #define NGX_HTTP_UPS_CONF 0x10000000 |
45 #define NGX_HTTP_SIF_CONF 0x20000000 | |
631 | 46 #define NGX_HTTP_LIF_CONF 0x40000000 |
47 #define NGX_HTTP_LMT_CONF 0x80000000 | |
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50 #define NGX_HTTP_MAIN_CONF_OFFSET offsetof(ngx_http_conf_ctx_t, main_conf) |
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51 #define NGX_HTTP_SRV_CONF_OFFSET offsetof(ngx_http_conf_ctx_t, srv_conf) |
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52 #define NGX_HTTP_LOC_CONF_OFFSET offsetof(ngx_http_conf_ctx_t, loc_conf) |
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499 | 55 #define ngx_http_get_module_main_conf(r, module) \ |
56 (r)->main_conf[module.ctx_index] | |
57 #define ngx_http_get_module_srv_conf(r, module) (r)->srv_conf[module.ctx_index] | |
58 #define ngx_http_get_module_loc_conf(r, module) (r)->loc_conf[module.ctx_index] | |
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61 #define ngx_http_conf_get_module_main_conf(cf, module) \ |
501 | 62 ((ngx_http_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index] |
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63 #define ngx_http_conf_get_module_srv_conf(cf, module) \ |
501 | 64 ((ngx_http_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index] |
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65 #define ngx_http_conf_get_module_loc_conf(cf, module) \ |
501 | 66 ((ngx_http_conf_ctx_t *) cf->ctx)->loc_conf[module.ctx_index] |
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68 #define ngx_http_cycle_get_module_main_conf(cycle, module) \ |
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69 (cycle->conf_ctx[ngx_http_module.index] ? \ |
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70 ((ngx_http_conf_ctx_t *) cycle->conf_ctx[ngx_http_module.index]) \ |
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71 ->main_conf[module.ctx_index]: \ |
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72 NULL) |
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75 #endif /* _NGX_HTTP_CONFIG_H_INCLUDED_ */ |