Url post data in CefGlue

[escribano]

Hi! I want to find an alternative to webbrowser control in .NET. This control has a "Navigate" method that provides post data functionality. How can I replicate this "Navigate" method with CefGlue?

Best Regards!

[fddima]

You needed create request with CefRequest.Create() and setup request, as you needed including post data.
Then you interested in CefFrame.LoadRequest(CefRequest request) method. (You can obtain frame via CefBrowser.GetMainFrame()).

[escribano]

Thank you very much. Web is shown correctly but I get an error when a pdf integrated in browser is loading. If I delete this code works perfectly and I assume that this code causes the issue.

public void NavigateTo(string url)
{
if (_browser != null)
{

//Data has some data

System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
Byte[] bytes = Encoding.UTF8.GetBytes(data);

CefRequest peticion = CefRequest.Create();
CefPostData post_data = CefPostData.Create();
CefPostDataElement element = CefPostDataElement.Create();

element.SetToBytes(bytes);
post_data.Add(element);

System.Collections.Specialized.NameValueCollection headers = new NameValueCollection();
headers.Add("Content-Type", "application/x-www-form-urlencoded");

peticion.Set(url, "POST", post_data, headers);

Address = url;
_browser.CefBrowser.StopLoad();
//_browser.CefBrowser.GetMainFrame().LoadUrl(url);
_browser.CefBrowser.GetMainFrame().LoadRequest(peticion);


}
}

Could you help me?

Error: Attempted to read or write protected memory. This is often an indication that other memory has been corrupted

[fddima]

Thank you very much. Web is shown correctly but I get an error when a pdf integrated in browser is loading. If I delete this code works perfectly and I assume that this code causes the issue.

Quick look at you sample gives working for me. I'm doesn't understand how it is related to pdf? Can you explain more precisely?

[fddima]

Thank you very much. Web is shown correctly but I get an error when a pdf integrated in browser is loading. If I delete this code works perfectly and I assume that this code causes the issue.

I'm also post request like your to web server which returns pdf, and it is works... So, sorry, don't have idea.

[escribano]

For example, when I try to open http://www.choapa.org/karamazov.pdf with cef_binary_3.1327.908_windows_xilium\Release\cefclient.exe I get this error in console.log:

Message: Uncaught Error: NETWORK_ERR: XMLHttpRequest Exception 101
Source: http://tests/xmlhttprequest
Line: 9
-----------------------

Message: Invalid 'X-Frame-Options' header encountered when loading 'http://www.google.es/url?sa=t&rct=j&q=karamazov%20pdf&source=web&cd=1&ved=0CC4QFjAA&url=http%3A%2F%2Fwww.choapa.org%2Fkaramazov.pdf&ei=NnK0UJPcPIHD0QWE4IEg&usg=AFQjCNGvudII-vw9L1p4e_BvIz6Xr9YX3g': 'ALLOWALL' is not a recognized directive. The header will be ignored.

Source: http://www.google.es/url?sa=t&rct=j&q=k ... Iz6Xr9YX3g

Line: 0

Any idea?

Thanks in advance!

[fddima]

For example, when I try to open http://www.choapa.org/karamazov.pdf with cef_binary_3.1327.908_windows_xilium\Release\cefclient.exe I get this error in console.log:

I did not have any problems with opening this url.
I have adobe acrobat reader installed, and looked that when i'm opening this url, it is handled by pdf plugin.

My plugin info from cefclient:

Code: Select all

Name: Adobe Acrobat
Description: Adobe PDF Plug-In For Firefox and Netscape 10.1.4
Version: 10.1.4.38
Path: C:\Program Files (x86)\Adobe\Reader 10.0\Reader\Browser\nppdf32.dll


[sebarnolds]

Hello.

Thanks for those informations, I easily made POST requests. However, is there any way to do such a request without a reference to the main frame (and LoadRequest) ? As I want to do the request directly after having created the browser, I currently need to load "about:blank" and create my request on the LoadingStateChanged event.

Am I doing right ? Is there another way to do this ?

[fddima]

Hello.

Thanks for those informations, I easily made POST requests. However, is there any way to do such a request without a reference to the main frame (and LoadRequest) ? As I want to do the request directly after having created the browser, I currently need to load "about:blank" and create my request on the LoadingStateChanged event.

Am I doing right ? Is there another way to do this ?

Use about:blank - browser always starts from some url. So your's solution is normal.

[sebarnolds]

Ok, thanks for the quick answer.