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view src/http/ngx_http_config.h @ 7678:bffcc5af1d72

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Upstream: drop extra data sent by upstream. Previous behaviour was to pass everything to the client, but this seems to be suboptimal and causes issues (ticket #1695). Fix is to drop extra data instead, as it naturally happens in most clients. This change covers generic buffered and unbuffered filters as used in the scgi and uwsgi modules. Appropriate input filter init handlers are provided by the scgi and uwsgi modules to set corresponding lengths. Note that for responses to HEAD requests there is an exception: we do allow any response length. This is because responses to HEAD requests might be actual full responses, and it is up to nginx to remove the response body. If caching is enabled, only full responses matching the Content-Length header will be cached (see b779728b180c).
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 06 Jul 2020 18:36:22 +0300
parents d620f497c50f
children
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_HTTP_CONFIG_H_INCLUDED_
#define _NGX_HTTP_CONFIG_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>


typedef struct {
    void        **main_conf;
    void        **srv_conf;
    void        **loc_conf;
} ngx_http_conf_ctx_t;


typedef struct {
    ngx_int_t   (*preconfiguration)(ngx_conf_t *cf);
    ngx_int_t   (*postconfiguration)(ngx_conf_t *cf);

    void       *(*create_main_conf)(ngx_conf_t *cf);
    char       *(*init_main_conf)(ngx_conf_t *cf, void *conf);

    void       *(*create_srv_conf)(ngx_conf_t *cf);
    char       *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, void *conf);

    void       *(*create_loc_conf)(ngx_conf_t *cf);
    char       *(*merge_loc_conf)(ngx_conf_t *cf, void *prev, void *conf);
} ngx_http_module_t;


#define NGX_HTTP_MODULE           0x50545448   /* "HTTP" */

#define NGX_HTTP_MAIN_CONF        0x02000000
#define NGX_HTTP_SRV_CONF         0x04000000
#define NGX_HTTP_LOC_CONF         0x08000000
#define NGX_HTTP_UPS_CONF         0x10000000
#define NGX_HTTP_SIF_CONF         0x20000000
#define NGX_HTTP_LIF_CONF         0x40000000
#define NGX_HTTP_LMT_CONF         0x80000000


#define NGX_HTTP_MAIN_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, main_conf)
#define NGX_HTTP_SRV_CONF_OFFSET   offsetof(ngx_http_conf_ctx_t, srv_conf)
#define NGX_HTTP_LOC_CONF_OFFSET   offsetof(ngx_http_conf_ctx_t, loc_conf)


#define ngx_http_get_module_main_conf(r, module)                             \
    (r)->main_conf[module.ctx_index]
#define ngx_http_get_module_srv_conf(r, module)  (r)->srv_conf[module.ctx_index]
#define ngx_http_get_module_loc_conf(r, module)  (r)->loc_conf[module.ctx_index]


#define ngx_http_conf_get_module_main_conf(cf, module)                        \
    ((ngx_http_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
#define ngx_http_conf_get_module_srv_conf(cf, module)                         \
    ((ngx_http_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
#define ngx_http_conf_get_module_loc_conf(cf, module)                         \
    ((ngx_http_conf_ctx_t *) cf->ctx)->loc_conf[module.ctx_index]

#define ngx_http_cycle_get_module_main_conf(cycle, module)                    \
    (cycle->conf_ctx[ngx_http_module.index] ?                                 \
        ((ngx_http_conf_ctx_t *) cycle->conf_ctx[ngx_http_module.index])      \
            ->main_conf[module.ctx_index]:                                    \
        NULL)


#endif /* _NGX_HTTP_CONFIG_H_INCLUDED_ */