// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "net/base/host_port_pair.h" #include "base/logging.h" #include "base/numerics/safe_conversions.h" #include "base/strings/string_number_conversions.h" #include "base/strings/string_piece.h" #include "base/strings/string_split.h" #include "base/strings/string_util.h" #include "base/strings/stringprintf.h" #include "base/trace_event/memory_usage_estimator.h" #include "net/base/ip_endpoint.h" #include "net/base/url_util.h" #include "url/gurl.h" #include "url/scheme_host_port.h" namespace net { HostPortPair::HostPortPair() : port_(0) {} HostPortPair::HostPortPair(base::StringPiece in_host, uint16_t in_port) : host_(in_host), port_(in_port) {} // static HostPortPair HostPortPair::FromURL(const GURL& url) { return HostPortPair(url.HostNoBrackets(), static_cast(url.EffectiveIntPort())); } // static HostPortPair HostPortPair::FromSchemeHostPort( const url::SchemeHostPort& scheme_host_port) { DCHECK(scheme_host_port.IsValid()); // HostPortPair assumes hostnames do not have surrounding brackets (as is // commonly used for IPv6 literals), so strip them if present. base::StringPiece host = scheme_host_port.host(); if (host.size() >= 2 && host.front() == '[' && host.back() == ']') { host = host.substr(1, host.size() - 2); } return HostPortPair(host, scheme_host_port.port()); } // static HostPortPair HostPortPair::FromIPEndPoint(const IPEndPoint& ipe) { return HostPortPair(ipe.ToStringWithoutPort(), ipe.port()); } // static HostPortPair HostPortPair::FromString(base::StringPiece str) { // Input with more than one ':' is ambiguous unless it contains an IPv6 // literal (signified by starting with a '['). ParseHostAndPort() allows such // input and always uses the last ':' as the host/port delimiter, but because // HostPortPair often deals with IPv6 literals without brackets, disallow such // input here to prevent a common error. if (base::SplitStringPiece(str, ":", base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL) .size() > 2 && str.front() != '[') { return HostPortPair(); } std::string host; int port; if (!ParseHostAndPort(str, &host, &port)) return HostPortPair(); // Require a valid port. if (port == -1) return HostPortPair(); DCHECK(base::IsValueInRangeForNumericType(port)); return HostPortPair(host, port); } std::string HostPortPair::ToString() const { std::string ret(HostForURL()); ret += ':'; ret += base::NumberToString(port_); return ret; } std::string HostPortPair::HostForURL() const { // TODO(rtenneti): Add support for |host| to have '\0'. if (host_.find('\0') != std::string::npos) { std::string host_for_log(host_); size_t nullpos; while ((nullpos = host_for_log.find('\0')) != std::string::npos) { host_for_log.replace(nullpos, 1, "%00"); } LOG(DFATAL) << "Host has a null char: " << host_for_log; } // Check to see if the host is an IPv6 address. If so, added brackets. if (host_.find(':') != std::string::npos) { DCHECK_NE(host_[0], '['); return base::StringPrintf("[%s]", host_.c_str()); } return host_; } } // namespace net