ASP.NET 根据 UserAgent 获取浏览器的类型和版本

//using System.Text.RegularExpressions;
public string GetBrowserName(string userAgent, out string browserName, out string ver)
{
string fullBrowserName = string.Empty;
browserName = string.Empty;
ver = string.Empty;
// IE
string regexStr = @"msie (?<ver>[\d.]+)";
Regex r = new Regex(regexStr, RegexOptions.IgnoreCase);
Match m = r.Match(userAgent);
if (m.Success)
{
browserName = "IE";
ver = m.Groups["ver"].Value;
fullBrowserName = string.Format("{0} {1}", browserName, ver);
return fullBrowserName;
}
// Firefox
regexStr = @"firefox\/([\d.]+)";
r = new Regex(regexStr, RegexOptions.IgnoreCase);
m = r.Match(userAgent);
if (m.Success)
{
browserName = "IE";
ver = m.Groups["ver"].Value;
fullBrowserName = string.Format("{0} {1}", browserName, ver);
return fullBrowserName;
}
// Chrome
regexStr = @"chrome\/([\d.]+)";
r = new Regex(regexStr, RegexOptions.IgnoreCase);
m = r.Match(userAgent);
if (m.Success)
{
browserName = "IE";
ver = m.Groups["ver"].Value;
fullBrowserName = string.Format("{0} {1}", browserName, ver);
return fullBrowserName;
}
// Opera
regexStr = @"opera.([\d.]+)";
r = new Regex(regexStr, RegexOptions.IgnoreCase);
m = r.Match(userAgent);
if (m.Success)
{
browserName = "IE";
ver = m.Groups["ver"].Value;
fullBrowserName = string.Format("{0} {1}", browserName, ver);
return fullBrowserName;
}
// Safari
regexStr = @"version\/([\d.]+).*safari";
r = new Regex(regexStr, RegexOptions.IgnoreCase);
m = r.Match(userAgent);
if (m.Success)
{
browserName = "IE";
ver = m.Groups["ver"].Value;
fullBrowserName = string.Format("{0} {1}", browserName, ver);
return fullBrowserName;
}
return fullBrowserName;
}