/// <summary>Get the default browser by protocol (eg. HTTP, HTTPS, FTP, SMS, MailTo, ...)</summary>
/// <param name="browsers">When you already called GetInstalledBrowsers(), pass it here.</param>
/// <param name="protocolType">Protocol type</param>
/// <returns></returns>
public static Browser GetDefaultBrowser(IEnumerable <Browser> browsers, Enums.eProtocolType protocolType)
{
var urlAssociationsKey = Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Microsoft\Windows\Shell\Associations\URLAssociations");
var protocolName = Enum.GetName(typeof(Enums.eProtocolType), protocolType)?.ToLower(CultureInfo.InvariantCulture);
if (urlAssociationsKey != null && !urlAssociationsKey.GetSubKeyNames().Contains(protocolName))
{
throw new BrowserException($"No url association for {protocolName}");
}
var userChoiceKey = urlAssociationsKey?.OpenSubKey($@"{protocolName}\UserChoice");
var defaultBrowserProgId = userChoiceKey?.GetValue("ProgId");
var foundNormalBrowser = browsers.FirstOrDefault(
b => b.UrlAssociations.Any(
a => (a.Key == protocolName) && a.Value.Equals(defaultBrowserProgId)
)
);
if (foundNormalBrowser != null)
{
return(foundNormalBrowser);
}
else
{
switch (defaultBrowserProgId)
{
case "AppX4hxtad77fbk3jkkeerkrm0ze94wjf3s9": // htm, html
case "AppXd4nrz8ff68srnhf9t5a8sbjyar1cr723": // pdf
case "AppXde74bfzw9j31bzhcvsrxsyjnhhbq66cs": // svg
case "AppXcc58vyzkbjbs4ky0mxrmxf8278rk9b3t": // xml
case "AppXq0fevzme2pys62n3e0fbqa7peapykr8v":
// Old Edge
return(browsers.FirstOrDefault(
b => ((b.KeyName == "Microsoft Edge") && b.IsApplicationGenerated)
));
case "IE.HTTP":
// Internet Explorer
return(browsers.FirstOrDefault(
b => b.KeyName == "IEXPLORE.EXE"
));
default:
return(null);
}
}
}
/// <summary>Get the default browser by protocol (eg. HTTP, HTTPS, FTP, SMS, MailTo, ...).</summary>
/// <param name="protocolType">Protocol type</param>
/// <returns></returns>
public static Browser GetDefaultBrowser(Enums.eProtocolType protocolType)
{
var browsers = GetInstalledBrowsers();
return(GetDefaultBrowser(browsers, protocolType));
}
