10ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Copyright 2013 The Chromium Authors. All rights reserved. 20ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Use of this source code is governed by a BSD-style license that can be 30ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// found in the LICENSE file. 40ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 50ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong#ifndef URL_URL_CANON_IP_H_ 60ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong#define URL_URL_CANON_IP_H_ 70ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 80ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong#include "base/strings/string16.h" 90ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong#include "url/url_canon.h" 100ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong#include "url/url_export.h" 110ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong#include "url/url_parse.h" 120ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 130ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kongnamespace url { 140ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 150ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Writes the given IPv4 address to |output|. 160ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus KongURL_EXPORT void AppendIPv4Address(const unsigned char address[4], 170ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong CanonOutput* output); 180ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 190ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Writes the given IPv6 address to |output|. 200ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus KongURL_EXPORT void AppendIPv6Address(const unsigned char address[16], 210ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong CanonOutput* output); 220ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 230ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Searches the host name for the portions of the IPv4 address. On success, 240ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// each component will be placed into |components| and it will return true. 250ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// It will return false if the host can not be separated as an IPv4 address 260ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// or if there are any non-7-bit characters or other characters that can not 270ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// be in an IP address. (This is important so we fail as early as possible for 280ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// common non-IP hostnames.) 290ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// 300ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Not all components may exist. If there are only 3 components, for example, 310ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// the last one will have a length of -1 or 0 to indicate it does not exist. 320ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// 330ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Note that many platform's inet_addr will ignore everything after a space 34399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// in certain curcumstances if the stuff before the space looks like an IP 350ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// address. IE6 is included in this. We do NOT handle this case. In many cases, 360ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// the browser's canonicalization will get run before this which converts 370ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// spaces to %20 (in the case of IE7) or rejects them (in the case of 380ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// Mozilla), so this code path never gets hit. Our host canonicalization will 39399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// notice these spaces and escape them, which will make IP address finding 401d2624a10e2c559f8ba9ef89eaa30832c0a83a96Sascha Haeberling// fail. This seems like better behavior than stripping after a space. 410ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus KongURL_EXPORT bool FindIPv4Components(const char* spec, 421d2624a10e2c559f8ba9ef89eaa30832c0a83a96Sascha Haeberling const Component& host, 430ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong Component components[4]); 440ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus KongURL_EXPORT bool FindIPv4Components(const base::char16* spec, 450ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong const Component& host, 460ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong Component components[4]); 470ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong 48399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// Converts an IPv4 address to a 32-bit number (network byte order). 49399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// 50399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// Possible return values: 510ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// IPV4 - IPv4 address was successfully parsed. 520ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// BROKEN - Input was formatted like an IPv4 address, but overflow occurred 530ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// during parsing. 540ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// NEUTRAL - Input couldn't possibly be interpreted as an IPv4 address. 550ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// It might be an IPv6 address, or a hostname. 560ae28bd5885b5daa526898fcf7c323dc2c3e1963Angus Kong// 57399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// On success, |num_ipv4_components| will be populated with the number of 58399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// components in the IPv4 address. 59399f7d09e0c45af54b77b4ab9508d6f23759b927Scott EttingerURL_EXPORT CanonHostInfo::Family IPv4AddressToNumber(const char* spec, 60399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger const Component& host, 61399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger unsigned char address[4], 62399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger int* num_ipv4_components); 6379397c21138f54fcff6ec067b44b847f1f7e0e98Carlos HernandezURL_EXPORT CanonHostInfo::Family IPv4AddressToNumber(const base::char16* spec, 64399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger const Component& host, 65399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger unsigned char address[4], 66399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger int* num_ipv4_components); 67399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger 68399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// Converts an IPv6 address to a 128-bit number (network byte order), returning 69399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// true on success. False means that the input was not a valid IPv6 address. 70399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// 71399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// NOTE that |host| is expected to be surrounded by square brackets. 72399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger// i.e. "[::1]" rather than "::1". 73399f7d09e0c45af54b77b4ab9508d6f23759b927Scott EttingerURL_EXPORT bool IPv6AddressToNumber(const char* spec, 74399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger const Component& host, 75399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger unsigned char address[16]); 76399f7d09e0c45af54b77b4ab9508d6f23759b927Scott EttingerURL_EXPORT bool IPv6AddressToNumber(const base::char16* spec, 77399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger const Component& host, 78399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger unsigned char address[16]); 79399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger 80399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger} // namespace url 81399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger 82399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger#endif // URL_URL_CANON_IP_H_ 83399f7d09e0c45af54b77b4ab9508d6f23759b927Scott Ettinger