// Copyright © 2021 The CefSharp Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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using System.IO;
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namespace CefSharp.Fluent
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{
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/// <summary>
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/// Called on the CEF IO thread when the browser needs credentials from the user.
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/// This method will only be called for requests initiated from the browser process.
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/// </summary>
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/// <param name="isProxy">indicates whether the host is a proxy server.</param>
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/// <param name="host">the hostname.</param>
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/// <param name="port">the port number.</param>
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/// <param name="realm">realm</param>
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/// <param name="scheme">scheme</param>
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/// <param name="callback">is a callback for authentication information</param>
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/// <returns>
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/// Return true to continue the request and call <see cref="IAuthCallback.Continue(string, string)"/> when the authentication information is available.
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/// If the request has an associated browser/frame then returning false will result in a call to <see cref="IRequestHandler.GetAuthCredentials"/>
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/// on the <see cref="IRequestHandler"/> associated with that browser, if any.
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/// Otherwise, returning false will cancel the request immediately.
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/// </returns>
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public delegate bool GetAuthCredentialsDelegate(bool isProxy, string host, int port, string realm, string scheme, IAuthCallback callback);
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/// <summary>
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/// Called when some part of the response is read. This method will not be called if the <see cref="UrlRequestFlags.NoDownloadData"/> flag is set on the request.
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/// </summary>
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/// <param name="request">request</param>
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/// <param name="data">A stream containing the bytes received since the last call. Cannot be used outside the scope of this method. </param>
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public delegate void OnDownloadDataDelegate(IUrlRequest request, Stream data);
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/// <summary>
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/// Notifies the client of download progress.
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/// </summary>
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/// <param name="request">request</param>
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/// <param name="current">denotes the number of bytes received up to the call </param>
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/// <param name="total">is the expected total size of the response (or -1 if not determined).</param>
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public delegate void OnDownloadProgressDelegate(IUrlRequest request, long current, long total);
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/// <summary>
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/// Notifies the client that the request has completed.
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/// Use the <see cref="IUrlRequest.RequestStatus"/> property to determine if the
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/// request was successful or not.
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/// </summary>
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/// <param name="request">request</param>
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public delegate void OnRequestCompleteDelegate(IUrlRequest request);
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/// <summary>
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/// Notifies the client of upload progress.
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/// This method will only be called if the UR_FLAG_REPORT_UPLOAD_PROGRESS flag is set on the request.
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/// </summary>
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/// <param name="request">request</param>
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/// <param name="current">denotes the number of bytes sent so far.</param>
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/// <param name="total">is the total size of uploading data (or -1 if chunked upload is enabled).</param>
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public delegate void OnUploadProgressDelegate(IUrlRequest request, long current, long total);
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/// <summary>
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/// Fluent UrlRequestClient
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/// </summary>
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public class UrlRequestClient : CefSharp.UrlRequestClient
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{
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private GetAuthCredentialsDelegate getAuthCredentials;
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private OnDownloadDataDelegate onDownloadData;
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private OnDownloadProgressDelegate onDownloadProgress;
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private OnRequestCompleteDelegate onRequestComplete;
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private OnUploadProgressDelegate onUploadProgress;
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/// <summary>
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/// Create a new UrlRequestClient Builder
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/// </summary>
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/// <returns>Fluent UrlRequestClient Builder</returns>
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public static UrlRequestClientBuilder Create()
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{
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return new UrlRequestClientBuilder();
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}
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/// <summary>
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/// Use <see cref="Create"/> to create a new instance of the fluent builder
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/// </summary>
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internal UrlRequestClient()
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{
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}
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internal void SetGetAuthCredentials(GetAuthCredentialsDelegate func)
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{
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getAuthCredentials = func;
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}
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internal void SetOnDownloadData(OnDownloadDataDelegate action)
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{
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onDownloadData = action;
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}
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internal void SetOnDownloadProgress(OnDownloadProgressDelegate action)
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{
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onDownloadProgress = action;
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}
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internal void SetOnRequestComplete(OnRequestCompleteDelegate action)
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{
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onRequestComplete = action;
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}
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internal void SetOnUploadProgress(OnUploadProgressDelegate action)
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{
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onUploadProgress = action;
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}
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/// <inheritdoc/>
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protected override bool GetAuthCredentials(bool isProxy, string host, int port, string realm, string scheme, IAuthCallback callback)
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{
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return getAuthCredentials?.Invoke(isProxy, host, port, realm, scheme, callback) ?? false;
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}
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/// <inheritdoc/>
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protected override void OnDownloadData(IUrlRequest request, Stream data)
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{
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onDownloadData?.Invoke(request, data);
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}
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/// <inheritdoc/>
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protected override void OnDownloadProgress(IUrlRequest request, long current, long total)
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{
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onDownloadProgress?.Invoke(request, current, total);
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}
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/// <inheritdoc/>
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protected override void OnRequestComplete(IUrlRequest request)
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{
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onRequestComplete?.Invoke(request);
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}
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/// <inheritdoc/>
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protected override void OnUploadProgress(IUrlRequest request, long current, long total)
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{
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onUploadProgress?.Invoke(request, current, total);
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}
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}
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}
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