/// <summary>
/// Gets an IBrowser instance from the user agent string passed in.
/// </summary>
/// <param name="userAgentString">The user agent string.</param>
/// <returns>An instance of IBrowser.</returns>
internal static IBrowser GetBrowser(ReadOnlySpan <char> userAgentString)
{
// Order is important, Go from most specific to generic
// For example, The string "Chrome" is present in both Chrome and Edge,
// So we will first check if it is Edge because Edge has something more specific we can check.
if (Firefox.TryParse(userAgentString, out var firefox))
{
return(firefox);
}
if (EdgeChromium.TryParse(userAgentString, out var edgeChromium))
{
return(edgeChromium);
}
if (InternetExplorer.TryParse(userAgentString, out var ie))
{
return(ie);
}
if (Opera.TryParse(userAgentString, out var opera))
{
return(opera);
}
if (Edge.TryParse(userAgentString, out var edge))
{
return(edge);
}
if (Chrome.TryParse(userAgentString, out var chrome))
{
return(chrome);
}
if (Safari.TryParse(userAgentString, out var safari))
{
return(safari);
}
if (Instagram.TryParse(userAgentString, out var instagram))
{
return(instagram);
}
return(default);
/// <summary>
/// Tries to build a Firefox browser instance from the user agent passed in and
/// returns a value that indicates whether the parsing succeeded.
/// </summary>
/// <param name="userAgent">The user agent value.</param>
/// <param name="result">A Firefox browser instance.</param>
/// <returns>A boolean value that indicates whether the parsing succeeded.</returns>
public static bool TryParse(ReadOnlySpan <char> userAgent, out Firefox result)
{
// Desktop version of Firefox.
var fireFoxVersion = GetVersionIfKeyPresent(userAgent, "Firefox/");
if (fireFoxVersion != null)
{
result = new Firefox(userAgent, fireFoxVersion);
return(true);
}
// IOS version of Firefox.
var fxiosVersion = GetVersionIfKeyPresent(userAgent, "FxiOS/");
if (fxiosVersion != null)
{
result = new Firefox(userAgent, fxiosVersion);
return(true);
}
result = null;
return(false);
}