protected override CefResourceHandler GetResourceHandler(CefBrowser browser, CefFrame frame, CefRequest request)
{
if (Guid.TryParse(request.GetHeaderByName("CefNet-Source"), out Guid sourceKey) &&
_customSources.Remove(sourceKey, out CefResourceHandler resourceHandler))
{
return(resourceHandler);
}
return(base.GetResourceHandler(browser, frame, request));
}
protected override bool Open(CefRequest request, out bool handleRequest, CefCallback callback)
{
var uri = new Uri(request.Url);
var headers = request.GetHeaderMap();
if (!string.IsNullOrEmpty(headers.Get("range")))
{
var rangeString = headers.Get("range");
var group = System.Text.RegularExpressions.Regex.Match(rangeString, @"(?<start>\d+)-(?<end>\d*)")?.Groups;
if (group != null)
{
if (!string.IsNullOrEmpty(group["start"].Value) && int.TryParse(group["start"].Value, out int startPos))
{
_buffStartPostition = startPos;
}
if (!string.IsNullOrEmpty(group["end"].Value) && int.TryParse(group["end"].Value, out int endPos))
{
_buffEndPostition = endPos;
}
}
_isPartContent = true;
}
_readStreamOffset = 0;
if (_buffStartPostition.HasValue)
{
_readStreamOffset = _buffStartPostition.Value;
}
byte[] postData = null;
var uploadFiles = new List <string>();
if (request.PostData != null)
{
var items = request.PostData.GetElements();
if (items != null && items.Length > 0)
{
var bytes = new List <byte>();
foreach (var item in items)
{
var buffer = item.GetBytes();
//var size = (int)item.BytesCount;
switch (item.ElementType)
{
case CefPostDataElementType.Bytes:
bytes.AddRange(buffer);
break;
case CefPostDataElementType.File:
uploadFiles.Add(item.GetFile());
break;
}
}
postData = bytes.ToArray();
bytes = null;
}
}
var method = request.Method;
var resourceRequest = new ResourceRequest(uri, method, headers, postData, uploadFiles.ToArray(), request);
handleRequest = false;
Task.Run(() =>
{
try
{
Infos.Add($"[{request.Method}]");
Infos.Add($"{resourceRequest.RequestUrl}");
_resourceResponse = GetResourceResponse(resourceRequest);
if (_resourceResponse == null)
{
//callback.Cancel();
//return;
throw new NullReferenceException($"ResourceResponse should not be null.");
}
if (DisableCORS)
{
_resourceResponse.Headers.Set(ACCESS_CONTROL_ALLOW_HEADERS, "*");
_resourceResponse.Headers.Set(ACCESS_CONTROL_ALLOW_METHODS, "*");
_resourceResponse.Headers.Set(X_FRAME_OPTIONS, "ALLOWALL");
if (!string.IsNullOrEmpty(request.GetHeaderByName("origin")))
{
_resourceResponse.Headers.Set(ACCESS_CONTROL_ALLOW_ORIGIN, request.GetHeaderByName("origin"));
_resourceResponse.Headers.Set(ACCESS_CONTROL_MAX_AGE, "3600");
}
else
{
_resourceResponse.Headers.Set(ACCESS_CONTROL_ALLOW_ORIGIN, "*");
}
}
Infos.Add($"{(int)_resourceResponse.HttpStatus} {_resourceResponse.HttpStatus}");
}
catch (Exception ex)
{
Logger.Error(ex, "ResourceHandler");
callback.Cancel();
}
}, _cancellationTokenSource.Token).ContinueWith(t => callback.Continue());
return(true);
}