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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Google;
namespace Microsoft.Extensions.DependencyInjection;
/// <summary>
/// Extension methods to configure Google OAuth authentication.
/// </summary>
public static class GoogleExtensions
{
/// <summary>
/// Adds Google OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
/// The default scheme is specified by <see cref="GoogleDefaults.AuthenticationScheme"/>.
/// <para>
/// Google authentication allows application users to sign in with their Google account.
/// </para>
/// </summary>
/// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
/// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
public static AuthenticationBuilder AddGoogle(this AuthenticationBuilder builder)
=> builder.AddGoogle(GoogleDefaults.AuthenticationScheme, _ => { });
/// <summary>
/// Adds Google OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
/// The default scheme is specified by <see cref="GoogleDefaults.AuthenticationScheme"/>.
/// <para>
/// Google authentication allows application users to sign in with their Google account.
/// </para>
/// </summary>
/// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
/// <param name="configureOptions">A delegate to configure <see cref="GoogleOptions"/>.</param>
/// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
public static AuthenticationBuilder AddGoogle(this AuthenticationBuilder builder, Action<GoogleOptions> configureOptions)
=> builder.AddGoogle(GoogleDefaults.AuthenticationScheme, configureOptions);
/// <summary>
/// Adds Google OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
/// The default scheme is specified by <see cref="GoogleDefaults.AuthenticationScheme"/>.
/// <para>
/// Google authentication allows application users to sign in with their Google account.
/// </para>
/// </summary>
/// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
/// <param name="authenticationScheme">The authentication scheme.</param>
/// <param name="configureOptions">A delegate to configure <see cref="GoogleOptions"/>.</param>
/// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
public static AuthenticationBuilder AddGoogle(this AuthenticationBuilder builder, string authenticationScheme, Action<GoogleOptions> configureOptions)
=> builder.AddGoogle(authenticationScheme, GoogleDefaults.DisplayName, configureOptions);
/// <summary>
/// Adds Google OAuth-based authentication to <see cref="AuthenticationBuilder"/> using the default scheme.
/// The default scheme is specified by <see cref="GoogleDefaults.AuthenticationScheme"/>.
/// <para>
/// Google authentication allows application users to sign in with their Google account.
/// </para>
/// </summary>
/// <param name="builder">The <see cref="AuthenticationBuilder"/>.</param>
/// <param name="authenticationScheme">The authentication scheme.</param>
/// <param name="displayName">A display name for the authentication handler.</param>
/// <param name="configureOptions">A delegate to configure <see cref="GoogleOptions"/>.</param>
/// <returns>A reference to <paramref name="builder"/> after the operation has completed.</returns>
public static AuthenticationBuilder AddGoogle(this AuthenticationBuilder builder, string authenticationScheme, string displayName, Action<GoogleOptions> configureOptions)
=> builder.AddOAuth<GoogleOptions, GoogleHandler>(authenticationScheme, displayName, configureOptions);
}
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