Function get_url

lib_acl_cpp/samples/http_client2/http_client2.cpp:6–72

#include "stdafx.h"

static void get_url(const char* url, const char* host,
	const char* addr, const char* tofile)
{
	acl::http_header header;

	//header.add_param("test", NULL);
	header.set_method(acl::HTTP_METHOD_GET);
	header.set_url(url);
	header.set_content_type("text/xml; charset=utf-8");
	if (header.get_host() == NULL)
	{
		header.set_host(host);
		printf(">>>set host: %s\r\n", host);
	}
	else
		printf(">>>host: %s\r\n", header.get_host());
	header.set_keep_alive(true);
	header.add_entry("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
	header.add_entry("Accept", "*/*");
	header.add_entry("Cache-Control", "no-cache");
	header.accept_gzip(true);

	acl::string buf;

	header.build_request(buf);
	printf("--------------------request------------------\r\n");
	printf("%s\r\n", buf.c_str());

	acl::http_client client;
	printf("begin connect %s\r\n", addr);
	if (client.open(addr, 10, 10) == false)
	{
		printf("open %s error\r\n", addr);
		return;
	}

	if (client.write_head(header) == false)
	{
		printf("write request header error\r\n");
		return;
	}
	if (client.read_head() == false)
	{
		printf("read response header error\r\n");
		return;
	}

	client.print_header("response header");

	acl::ofstream fp;
	fp.open_write(tofile);
	while (true)
	{
		int   ret = client.read_body(buf);
		if (ret < 0)
		{
			printf("connect closed now\r\n");
			break;