hphp/util/network.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16
  17 #pragma once
  18
  19 #include <cstdlib>
  20 #include <string>
  21
  22 #include <folly/IPAddress.h>
  23 #include <folly/portability/Sockets.h>
  24
  25 /**
  26  * Network utility functions.
  27  */
  28 namespace HPHP {
  29 ///////////////////////////////////////////////////////////////////////////////
  30 // thread-safe network functions
  31
  32 struct HostEnt {
  33   HostEnt() : tmphstbuf(nullptr) {}
  34   ~HostEnt() { if (tmphstbuf) free(tmphstbuf);}
  35
  36   struct hostent hostbuf;
  37   char *tmphstbuf;
  38   int herr;
  39 };
  40
  41 // Extract out the scheme, host and port from a URL
  42 // http://192.168.1.0:80
  43 //   http, 192.168.1.0, 80
  44 // http://[2a03:2880::1]:80
  45 //   http, 2a03:2880::1, 80
  46 // ssl://192.168.1.0:443
  47 //   ssl, 192.168.1.0, 80
  48 // ssl://[2a03:2880::1]:443
  49 //   ssl, 2a03:2880::1, 443
  50 struct HostURL {
  51   explicit HostURL(const std::string &hosturl, int port = 0);
  52
  53   bool isIPv6() const {return m_ipv6;}
  54   bool isValid() const {return m_valid;}
  55   uint16_t getPort() const {return m_port;}
  56   std::string getScheme() const {return m_scheme;}
  57   std::string getHost() const {return m_host;}
  58   std::string getHostURL() const {return m_hosturl;}
  59
  60 private:
  61   bool        m_ipv6;
  62   bool        m_valid;
  63   uint16_t    m_port;
  64   std::string m_scheme;
  65   std::string m_host;
  66   std::string m_hosturl;
  67 };
  68
  69 bool safe_gethostbyname(const char *address, HostEnt &result);
  70
  71 ///////////////////////////////////////////////////////////////////////////////
  72 /**
  73  * Get local machine's primary IP address.
  74  */
  75 std::string GetPrimaryIP();
  76 std::string GetPrimaryIPv4();
  77 std::string GetPrimaryIPv6();
  78
  79 ///////////////////////////////////////////////////////////////////////////////
  80 }
  81