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173 lines
3.6 KiB
C++
173 lines
3.6 KiB
C++
#include "stdafx.h"
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#include "util.h"
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#include "db_store.h"
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#include "http_thread.h"
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http_thread::http_thread(const char* domain, const char* ip, int port,
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const char* url, double spent_dns)
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: domain_(domain)
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, ip_(ip)
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, port_(port)
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, url_(url)
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, spent_dns_(spent_dns)
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, spent_connect_(-1)
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, spent_http_(-1)
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, spent_total_(-1)
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, length_(0)
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, success_(false)
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{
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snprintf(addr_, sizeof(addr_), "%s:%d", ip, port);
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}
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http_thread::~http_thread()
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{
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db_store store;
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// 线程退出前将结果入库
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store.db_update(*this);
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}
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void* http_thread::run()
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{
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char domain[256];
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unsigned short port;
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if (acl::http_utils::get_addr(url_.c_str(), domain,
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sizeof(domain), &port) == false)
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{
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logger_error("invalid url: %s", url_.c_str());
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return NULL;
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}
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char host[256], *phost;
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if (port == 80)
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phost = domain;
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else
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{
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snprintf(host, sizeof(host), "%s:%d", domain, port);
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phost = host;
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}
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struct timeval begin0;
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gettimeofday(&begin0, NULL);
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struct timeval begin, end;
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// 连接 HTTP 服务器并计算耗时
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gettimeofday(&begin, NULL);
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acl::socket_stream* conn = connect_server();
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gettimeofday(&end, NULL);
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spent_connect_ = util::stamp_sub(&end, &begin);
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if (conn == NULL)
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return NULL;
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gettimeofday(&begin, NULL);
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if (http_request(conn, phost) == false)
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logger_error("http request failed!");
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gettimeofday(&end, NULL);
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struct timeval finish;
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gettimeofday(&finish, NULL);
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spent_http_ = util::stamp_sub(&end, &begin);
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spent_total_ = spent_dns_ + util::stamp_sub(&finish, &begin0);
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delete conn;
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return NULL;
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}
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acl::socket_stream* http_thread::connect_server()
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{
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// 连接远程 HTTP 服务器
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acl::socket_stream* conn = new acl::socket_stream();
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if (conn->open(addr_, var_cfg_conn_timeout,
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var_cfg_rw_timeout) == false)
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{
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logger_error("connect server %s error %s",
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addr_, acl::last_serror());
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return NULL;
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}
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return conn;
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}
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bool http_thread::http_request(acl::socket_stream* conn, const char* host)
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{
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acl::http_request req(conn);
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acl::http_header& header = req.request_header();
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// 构造 HTTP 请求头
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header.set_url(url_.c_str())
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.set_keep_alive(false)
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.set_host(host)
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.set_method(acl::HTTP_METHOD_GET)
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.set_content_type("text/plain")
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.add_entry("Accept-Encoding", "plain")
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.accept_gzip(true);
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// 发送 HTTP 请求头，同时读取响应头
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if (req.request(NULL, 0) == false)
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{
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logger_error("send request to %s error %s",
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conn->get_peer(true), acl::last_serror());
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return false;
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}
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acl::http_client* client = req.get_client();
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long long int content_length = client->body_length();
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#if 1
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acl::string buf;
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int ret, len;
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// 开始读数据体
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while (true)
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{
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ret = req.read_body(buf, true, &len);
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if (ret == 0)
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break;
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if (ret < 0)
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{
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logger_error("get body from %s error",
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conn->get_peer(true));
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return false;
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}
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length_ += len;
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}
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#else
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// sohu 的 www.sohu.com 比较弱，虽然客户端发送了只接收 plain 数据
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// 其依然会发 gzip 响应数据
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char buf[8192];
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int ret;
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// 开始读数据体
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while (true)
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{
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ret = req.get_body(buf, sizeof(buf) - 1);
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if (ret == 0)
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break;
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if (ret < 0)
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{
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logger_error("get body from %s error",
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conn->get_peer(true));
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return false;
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}
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length_ += ret;
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}
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#endif
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// 如果读到的数据与 HTTP 响应头中的数据不一致，则报错
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if (content_length > 0 && length_ != content_length)
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{
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logger_error("length: %d != content_length: %lld, server: %s",
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length_, content_length, conn->get_peer(true));
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return false;
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}
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logger("ok, url: %s, host: %s, addr: %s", url_.c_str(), host, addr_);
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success_ = true;
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return true;
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}
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