Handling custom url protocols

[Paul. F]

Hi guys, I would like to know if it is possible to handle a custom url protocol using CefGlue the way I would do normally using Windows, where I insert into it's Registry some keys and all browsers installed (IE, Firefox, Chrome) will know what to do when I click on a link that uses this custom protocol, I ran the cefclient demo app and upon clicking on my custom url I get the following message "Failed to load URL vsp:New Session with error (-302), where "vsp" happens to be the custom protocol that I registered which launches an external app installed on the computer.

Can such behavior be achieved on the cefclient app that doesn't require C++ expertise since I don't have it?

Thank you.

Paul

Sample registry keys that I use to register my custom "vsp" url protocol on Windows, works on all browsers installed:

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\vsp]

"URL Protocol"=""

[HKEY_CLASSES_ROOT\vsp\DefaultIcon]

@="\"C:\\MyApp\MyApp.exe,1\""

[HKEY_CLASSES_ROOT\vsp\shell]

[HKEY_CLASSES_ROOT\vsp\shell\open]

[HKEY_CLASSES_ROOT\vsp\shell\open\command]

@="\"C:\\MyApp\MyApp.exe\" \"%1\""

[Dmitry Azaraev]

Hi.

Try implement CefRequestHandler and override OnProtocolExecution method (by default os execution is disabled and you must enable it).

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Best regards,
   Dmitry

[Paul. F]

Thanks Dmitry, that worked. The only problem that I'm having now is that upon clicking the custom url handler and the external app launches the website will go to a blank page whereas on Chrome, IE and Firefox it stops the execution, any idea about that?

Paul

I'm posting here the changes I've made:

1. client_handler.cpp :: 423
1. if (urlStr.find("spotify:") == 0 || urlStr.find("vsp:") == 0) //Added || urlStr.find("vsp:") == 0
2. client_handler.app :: 496
1. if (urlStr.find("spotify:") == 0 || urlStr.find("vsp:") == 0) //Added || urlStr.find("vsp:") == 0
   

[Paul. F]

Fixed the problem with the blank page displaying after clicking on the custom handler link, line 490:

void ClientHandler::OnProtocolExecution(CefRefPtr<CefBrowser> browser,
                                        const CefString& url,
                                        bool& allow_os_execution) {
  std::string urlStr = url;
  // Allow OS execution of Spotify URIs.

  if (urlStr.find("spotify:") == 0 || urlStr.find("vsp:") == 0)

  {
    allow_os_execution = true;
browser->StopLoad();
  }
}

[Dmitry Azaraev]

Please report to CEF forum / issue tracker. This is strange.

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Best regards,
   Dmitry

[Paul. F]

Posted to the CEF forum, thank you.