/*
?*?nginx?（c）?Igor?Sysoev
?*?this?module?（C）?Mykola?Grechukh?
?*/


#include?
#include?
#include?

#if?（NGX_HAVE_OPENSSL_MD5_H）
#include?
#else
#include?
#endif

#if?（NGX_OPENSSL_MD5）
#define??MD5Init????MD5_Init
#define??MD5Update??MD5_Update
#define??MD5Final???MD5_Final
#endif

#if?（NGX_HAVE_OPENSSL_SHA1_H）
#include?
#else
#include?
#endif

#define?NGX_ACCESSKEY_MD5?1
#define?NGX_ACCESSKEY_SHA1?2

typedef?struct?{
????ngx_flag_t????enable;
????ngx_str_t?????arg;
????ngx_uint_t????hashmethod;
????ngx_str_t?????signature;
????ngx_array_t??*signature_lengths;
????ngx_array_t??*signature_values;
}?ngx_http_accesskey_loc_conf_t;

static?ngx_int_t?ngx_http_accesskey_handler（ngx_http_request_t?*r）;

static?char?*ngx_http_accesskey_signature（ngx_conf_t?*cf?void?*post?void?*data）;
static?char?*ngx_http_accesskey_hashmethod（ngx_conf_t?*cf?ngx_command_t?*cmd?void?*conf）;

static?void?*ngx_http_accesskey_create_loc_conf（ngx_conf_t?*cf）;
static?char?*ngx_http_accesskey_merge_loc_conf（ngx_conf_t?*cf
????void?*parent?void?*child）;
static?ngx_int_t?ngx_http_accesskey_init（ngx_conf_t?*cf）;

static?ngx_conf_post_handler_pt??ngx_http_accesskey_signature_p?=
????ngx_http_accesskey_signature;

static?ngx_command_t??ngx_http_accesskey_commands[]?=?{
????{?ngx_string（“accesskey“）
??????NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG
??????ngx_conf_set_flag_slot
??????NGX_HTTP_LOC_CONF_OFFSET
??????offsetof（ngx_http_accesskey_loc_conf_t?enable）
??????NULL?}

????{?ngx_string（“accesskey_hashmethod“）
??????NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1
??????ngx_http_accesskey_hashmethod
??????NGX_HTTP_LOC_CONF_OFFSET
??????0
??????NULL?}

????{?ngx_string（“accesskey_signature“）
??????NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1
??????ngx_conf_set_str_slot
??????NGX_HTTP_LOC_CONF_OFFSET
??????offsetof（ngx_http_accesskey_loc_conf_t?signature）
??????&ngx_http_accesskey_signature_p?}

????{?ngx_string（“accesskey_arg“）
??????NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1
??????ngx_conf_set_str_slot
??????NGX_HTTP_LOC_CONF_OFFSET
??????offsetof（ngx_http_accesskey_loc_conf_t?arg）
??????NULL?}

??????ngx_null_command
};


static?ngx_http_module_t??ngx_http_accesskey_module_ctx?=?{
????NULL??????????????????????????????????/*?preconfiguration?*/
????ngx_http_accesskey_init??????????????????/*?postconfiguration?*/

????NULL??????????????????????????????????/*?create?main?configuration?*/
????NULL??????????????????????????????????/*?init?main?configuration?*/

????NULL??????????????????????????????????/*?create?server?configuration?*/
????NULL??????????????????????????????????/*?merge?server?configuration?*/

????ngx_http_accesskey_create_loc_conf???????/*?create?location?configuration?*/
????ngx_http_accesskey_merge_loc_conf?????????/*?merge?locati