/*
?*?Soft:????????Perform?a?GET?query?to?a?remote?HTTP/HTTPS?server.
?*??????????????Set?a?timer?to?compute?global?remote?server?response
?*??????????????time.
?*
?*?Part:????????HTTP?asynchronous?engine.
?*
?*?Version:?????$Id:?http.cv?1.1.16?2009/02/14?03:25:07?acassen?Exp?$
?*
?*?Authors:?????Alexandre?Cassen?
?*
?*??????????????This?program?is?distributed?in?the?hope?that?it?will?be?useful
?*??????????????but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*??????????????MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.
?*??????????????See?the?GNU?General?Public?License?for?more?details.
?*
?*??????????????This?program?is?free?software;?you?can?redistribute?it?and/or
?*??????????????modify?it?under?the?terms?of?the?GNU?General?Public?License
?*??????????????as?published?by?the?Free?Software?Foundation;?either?version
?*??????????????2?of?the?License?or?（at?your?option）?any?later?version.
?*
?*?Copyright?（C）?2001-2012?Alexandre?Cassen?
?*/

/*?system?includes?*/
#include?
#include?

/*?keepalived?includes?*/
#include?“memory.h“
#include?“utils.h“
#include?“html.h“
#include?“timer.h“

/*?genhash?includes?*/
#include?“include/http.h“
#include?“include/layer4.h“
#include?“include/main.h“

/*?
?*?The?global?design?of?this?checker?is?the?following?:
?*?
?*?-?All?the?actions?are?done?asynchronously.
?*?-?All?the?actions?handle?timeout?connection.
?*?-?All?the?actions?handle?error?from?low?layer?to?upper
?*???layers.
?*?
?*?The?global?synopsis?of?the?inter-thread-call?is?:
?*?????
?*?????http_request_thread?（send?SSL?GET?request）
?*????????????v
?*?????http_response_thread?（initialize?read?stream?step）
?*?????????/?????????????\
?*????????/???????????????\
?*???????v?????????????????v
?*??http_read_thread???ssl_read_thread?（perform?HTTP|SSL?stream）
?*???????v??????????????v
?*??------------------------------
?*???finalize????/?????epilog
?*/

const?hash_t?hashes[hash_guard]?=?{
	[hash_md5]?=?{
		（hash_init_f）?MD5_Init
		（hash_update_f）?MD5_Update
		（hash_final_f）?MD5_Final
		MD5_DIGEST_LENGTH
		“MD5“
		“MD5SUM“
	}
#ifdef?FEAT_SHA1
	[hash_sha1]?=?{
		（hash_init_f）?SHA1_Init
		（hash_update_f）?SHA1_Update
		（hash_final_f）?SHA1_Final
		SHA_DIGEST_LENGTH
		“SHA1“
		“SHA1SUM“
	}
#endif
};

#define?HASH_LENGTH（sock）	（（sock）->hash->length）
#define?HASH_LABEL（sock）	（（sock）->hash->label）
#define?HASH_INIT（sock）		（（sock）->hash->init（&（sock）->context））
#define?HASH_UPDATE（sock?buf?len）?\
	（（sock）->hash->update（&（sock）->context?（buf）?（len）））
#define?HASH_FINAL（sock?digest）?\
	（（sock）->hash->final（（digest）?&（sock）->context））

/*?free?allocated?pieces?*/
static?void
free_all（thread_t?*?thread）
{
	SOCK?*sock_obj?=?THREAD_ARG（thread）;

	DBG（“Total?read?size?read?=?%d?Bytes?fd:%d\n“
	????sock_obj->total_size?sock_obj->fd）;

	if?（sock_obj->buffer）
		FREE（sock_obj->buffer）;

	/*
	?*?Decrement?the?current?global?get?number.
	?*?=>?free?the?reserved?thread
	?*/
	req