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/* 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"

/**
 * A object that hold authentication information. The caller of
 * nsIAuthPrompt2::promptUsernameAndPassword or
 * nsIAuthPrompt2::promptPasswordAsync provides an object implementing this
 * interface; the prompt implementation can then read the values here to prefill
 * the dialog. After the user entered the authentication information, it should
 * set the attributes of this object to indicate to the caller what was entered
 * by the user.
 */
[scriptable, uuid(0d73639c-2a92-4518-9f92-28f71fea5f20)]
interface nsIAuthInformation : nsISupports
{
  /** @name Flags */
  /* @{ */
  /**
   * This dialog belongs to a network host.
   */
  const uint32_t AUTH_HOST = 1;

  /**
   * This dialog belongs to a proxy.
   */
  const uint32_t AUTH_PROXY = 2;

  /**
   * This dialog needs domain information. The user interface should show a
   * domain field, prefilled with the domain attribute's value.
   */
  const uint32_t NEED_DOMAIN = 4;

  /**
   * This dialog only asks for password information. Authentication prompts
   * SHOULD NOT show a username field. Attempts to change the username field
   * will have no effect. nsIAuthPrompt2 implementations should, however, show
   * its initial value to the user in some form. For example, a paragraph in
   * the dialog might say "Please enter your password for user jsmith at
   * server intranet".
   *
   * This flag is mutually exclusive with #NEED_DOMAIN.
   */
  const uint32_t ONLY_PASSWORD = 8;

  /**
   * We have already tried to log in for this channel
   * (with auth values from a previous promptAuth call),
   * but it failed, so we now ask the user to provide a new, correct login.
   *
   * @see also RFC 2616, Section 10.4.2
   */
  const uint32_t PREVIOUS_FAILED = 16;

  /**
   * A cross-origin sub-resource requests an authentication.
   * The message presented to users must reflect that.
   */
  const uint32_t CROSS_ORIGIN_SUB_RESOURCE = 32;
  /* @} */

  /**
   * Flags describing this dialog. A bitwise OR of the flag values
   * above.
   *
   * It is possible that neither #AUTH_HOST nor #AUTH_PROXY are set.
   *
   * Auth prompts should ignore flags they don't understand; especially, they
   * should not throw an exception because of an unsupported flag.
   */
  readonly attribute unsigned long flags;

  /**
   * The server-supplied realm of the authentication as defined in RFC 2617.
   * Can be the empty string if the protocol does not support realms.
   * Otherwise, this is a human-readable string like "Secret files".
   */
  readonly attribute AString realm;

  /**
   * The authentication scheme used for this request, if applicable. If the
   * protocol for this authentication does not support schemes, this will be
   * the empty string. Otherwise, this will be a string such as "basic" or 
   * "digest". This string will always be in lowercase.
   */
  readonly attribute AUTF8String authenticationScheme;

  /**
   * The initial value should be used to prefill the dialog or be shown
   * in some other way to the user.
   * On return, this parameter should contain the username entered by
   * the user.
   * This field can only be changed if the #ONLY_PASSWORD flag is not set.
   */
  attribute AString username;

  /**
   * The initial value should be used to prefill the dialog or be shown
   * in some other way to the user.
   * The password should not be shown in clear.
   * On return, this parameter should contain the password entered by
   * the user.
   */
  attribute AString password;

  /**
   * The initial value should be used to prefill the dialog or be shown
   * in some other way to the user.
   * On return, this parameter should contain the domain entered by
   * the user.
   * This attribute is only used if flags include #NEED_DOMAIN.
   */
  attribute AString domain;
};