/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

/**
 * This interface identifies a proxy server.
 */
[scriptable, uuid(63fff172-2564-4138-96c6-3ae7d245fbed)]
interface nsIProxyInfo : nsISupports
{
  /**
   * This attribute specifies the hostname of the proxy server.
   */
  readonly attribute AUTF8String host;

  /**
   * This attribute specifies the port number of the proxy server.
   */
  readonly attribute long port;

  /**
   * This attribute specifies the type of the proxy server as an ASCII string.
   *
   * Some special values for this attribute include (but are not limited to)
   * the following:
   *   "http"     HTTP proxy (or SSL CONNECT for HTTPS)
   *   "https"    HTTP proxying over TLS connection to proxy
   *   "socks"    SOCKS v5 proxy
   *   "socks4"   SOCKS v4 proxy
   *   "direct"   no proxy
   *   "unknown"  unknown proxy (see nsIProtocolProxyService::resolve)
   *
   * A future version of this interface may define additional types.
   */
  readonly attribute ACString type;

  /**
   * This attribute specifies flags that modify the proxy type.  The value of
   * this attribute is the bit-wise combination of the Proxy Flags defined
   * below.  Any undefined bits are reserved for future use.
   */
  readonly attribute unsigned long flags;

  /**
   * This attribute specifies flags that were used by nsIProxyProtocolService when
   * creating this ProxyInfo element.
   */
  readonly attribute unsigned long resolveFlags;

  /**
   * Specifies a proxy username.
   */
  readonly attribute ACString username;

  /**
   * Specifies a proxy password.
   */
  readonly attribute ACString password;

  /**
   * This attribute specifies the failover timeout in seconds for this proxy.
   * If a nsIProxyInfo is reported as failed via nsIProtocolProxyService::
   * getFailoverForProxy, then the failed proxy will not be used again for this
   * many seconds.
   */
  readonly attribute unsigned long failoverTimeout;

  /**
   * This attribute specifies the proxy to failover to when this proxy fails.
   */
  attribute nsIProxyInfo failoverProxy;

  /**
   * Specifies an ID related to the source of this proxy configuration.  If
   * it is created in response to an extension API, it will be the extension ID.
   */
  attribute ACString sourceId;

  /**
   * Any non-empty value will be passed directly as Proxy-Authorization header
   * value for the CONNECT request attempt.  However, this header set on the
   * resource request itself takes precedence.
   */
  readonly attribute ACString proxyAuthorizationHeader;

  /**
   * An optional key used for additional isolation of this proxy connection.
   */
  readonly attribute ACString connectionIsolationKey;

  /****************************************************************************
   * The following "Proxy Flags" may be bit-wise combined to construct the
   * flags attribute defined on this interface.  All unspecified bits are
   * reserved for future use.
   */

  /**
   * This flag is set if the proxy is to perform name resolution itself.  If
   * this is the case, the hostname is used in some fashion, and we shouldn't
   * do any form of DNS lookup ourselves.
   */
  const unsigned short TRANSPARENT_PROXY_RESOLVES_HOST = 1 << 0;
};