/*
 * Copyright (C) 2004, 2007, 2008, 2011, 2012 Apple Inc. All rights reserved.
 * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "third_party/blink/renderer/platform/weborigin/known_ports.h"

#include "base/synchronization/lock.h"
#include "net/base/port_util.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
#include "third_party/blink/renderer/platform/wtf/text/string_utf8_adaptor.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"

namespace blink {

namespace {

base::Lock& ExplicitlyAllowedPortsLock() {
  DEFINE_THREAD_SAFE_STATIC_LOCAL(base::Lock, lock, ());
  return lock;
}

}  // namespace

bool IsDefaultPortForProtocol(uint16_t port, const String& protocol) {
  if (protocol.empty())
    return false;

  switch (port) {
    case 80:
      return protocol == "http" || protocol == "ws";
    case 443:
      return protocol == "https" || protocol == "wss";
    case 21:
      return protocol == "ftp";
  }
  return false;
}

// Please keep blink::DefaultPortForProtocol and url::DefaultPortForProtocol in
// sync.
uint16_t DefaultPortForProtocol(const String& protocol) {
  if (protocol == "http" || protocol == "ws")
    return 80;
  if (protocol == "https" || protocol == "wss")
    return 443;
  if (protocol == "ftp")
    return 21;

  return 0;
}

bool IsPortAllowedForScheme(const KURL& url) {
  // Returns true for URLs without a port specified. This is needed to let
  // through non-network schemes that don't go over the network.
  if (!url.HasPort())
    return true;
  String protocol = url.Protocol();
  if (protocol.IsNull())
    protocol = g_empty_string;
  uint16_t effective_port = url.Port();
  if (!effective_port)
    effective_port = DefaultPortForProtocol(protocol);
  StringUtf8Adaptor utf8(protocol);
  base::AutoLock locker(ExplicitlyAllowedPortsLock());
  return net::IsPortAllowedForScheme(effective_port, utf8.AsStringView());
}

void SetExplicitlyAllowedPorts(base::span<const uint16_t> allowed_ports) {
  base::AutoLock locker(ExplicitlyAllowedPortsLock());
  net::SetExplicitlyAllowedPorts(allowed_ports);
}

}  // namespace blink