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- // 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<uint16_t>(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<uint16_t>(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
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