private static Platform GetPlatform(UserAgent agent)
{
// Unknown
if (agent.IsNullOrEmpty())
{
return(Platform.Unknown);
}
// Google Android
if (agent.Contains(Platform.Android))
{
return(Platform.Android);
}
// Microsoft Windows
if (agent.Contains(Platform.Windows))
{
return(Platform.Windows);
}
// Apple iOS
if (IsiOS(agent))
{
return(Platform.iOS);
}
// Apple Mac
if (agent.Contains(Platform.Mac))
{
return(Platform.Mac);
}
// Linux Distribution
if (agent.Contains(Platform.Linux))
{
return(Platform.Linux);
}
return(Platform.Others);
}
public void ContainsString()
{
var agent = new UserAgent("abc");
Assert.False(agent.Contains((string)null));
Assert.False(agent.Contains(""));
Assert.True(agent.Contains("abc"));
Assert.True(agent.Contains("ABC"));
}
public void ContainsGeneric()
{
var abc = new UserAgent("abc");
var google = new UserAgent("Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)");
Assert.False(abc.Contains(Crawler.Google));
Assert.True(google.Contains(Crawler.Google));
Assert.False(google.Contains(Crawler.Yahoo));
Assert.False(google.Contains(Crawler.Yahoo | Crawler.Bing));
Assert.True(google.Contains(Crawler.Google | Crawler.Bing));
}
public static bool Contains <T>(this UserAgent agent, T flags) where T : Enum
{
var strFlags = flags.ToString();
return(strFlags.Contains(',')
? flags.GetFlags().Any(agent.Contains)
: agent.Contains(strFlags));
}
public void ContainsListString()
{
var agent = new UserAgent("Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)");
Assert.False(agent.Contains(new List <string> {
null
}));
Assert.False(agent.Contains(new List <string> {
""
}));
Assert.False(agent.Contains(new List <string> {
null, ""
}));
Assert.False(agent.Contains(new List <string> {
"abc"
}));
Assert.True(agent.Contains(new List <string> {
"google"
}));
Assert.True(agent.Contains(new List <string> {
"google", "abc"
}));
Assert.True(agent.Contains(new List <string> {
"abc", "google"
}));
}
private static Version GetVersion(UserAgent agent, Browser browser)
{
if (agent.IsNullOrEmpty())
{
return(new Version());
}
if (agent.Contains("rv:11.0") || agent.Contains("ie 11.0"))
{
return(new Version(11, 0));
}
if (agent.Contains("msie 10"))
{
return(new Version(10, 0));
}
if (agent.Contains("msie 9"))
{
return(new Version(9, 0));
}
if (browser == Browser.Edge && !agent.Contains("edge"))
{
agent = agent.Replace("edg", "edge");
}
var name = browser.ToString();
var first = agent.IndexOf(browser);
string cut;
try
{
cut = agent.Substring(first + name.Length + 1);
}
catch
{
cut = agent.Substring(first + name.Length);
}
var version = cut.Contains(" ") ? cut.Substring(0, cut.IndexOf(' ')) : cut;
return(version.ToVersion());
}
private static Engine GetEngine(UserAgent agent, Platform os, Processor cpu)
{
// Null check
if (agent.IsNullOrEmpty())
{
return(Engine.Unknown);
}
// Microsoft Edge
if (IsEdge(agent, os))
{
return(Engine.Edge);
}
// Google Blink
if (IsBlink(agent))
{
return(Engine.Blink);
}
// Apple WebKit
if (agent.Contains(Engine.WebKit))
{
return(Engine.WebKit);
}
// Microsoft Trident
if (agent.Contains(Engine.Trident))
{
return(Engine.Trident);
}
// Mozilla Gecko
if (agent.Contains(Engine.Gecko))
{
return(Engine.Gecko);
}
// Sumsang Servo
if (agent.Contains(Engine.Servo))
{
return(Engine.Servo);
}
return(Engine.Others);
}
private static Device DeviceFromUserAgent(UserAgent agent)
{
// Tablet
if (IsTablet(agent))
{
return(Device.Tablet);
}
// Tv
if (IsTV(agent))
{
return(Device.Tv);
}
// Mobile
if (IsMobile(agent))
{
return(Device.Mobile);
}
// Watch
if (agent.Contains(Device.Watch))
{
return(Device.Watch);
}
// Console
if (agent.Contains(Device.Console))
{
return(Device.Console);
}
// Car
if (agent.Contains(Device.Car))
{
return(Device.Car);
}
// IoT
if (agent.Contains(Device.IoT))
{
return(Device.IoT);
}
// Desktop
return(Device.Desktop);
}
private static Version GetVersion(UserAgent agent, Browser browser)
{
if (agent.IsNullOrEmpty())
{
return(new Version());
}
if (agent.Contains("rv:11.0") || agent.Contains("ie 11.0"))
{
return(new Version(11, 0));
}
if (agent.Contains("msie 10"))
{
return(new Version(10, 0));
}
if (agent.Contains("msie 9"))
{
return(new Version(9, 0));
}
if (browser == Browser.Edge && !agent.Contains("edge"))
{
return(GetVersionCommon(agent.Replace("edg", "edge"), browser));
}
if (browser == Browser.Safari && agent.Contains("version/"))
{
return(GetVersionSafari(agent, browser));
}
return(GetVersionCommon(agent, browser));
}
private static Browser GetBrowser(UserAgent agent, Platform os, Engine engine)
{
// fail and return fast
if (agent.IsNullOrEmpty())
{
return(Browser.Unknown);
}
// Microsoft Edge
if (IsEdge(agent))
{
return(Browser.Edge);
}
// Google chrome
if (agent.Contains(Browser.Chrome))
{
return(Browser.Chrome);
}
// Microsoft Internet Explorer
if (IsInternetExplorer(agent, os, engine))
{
return(Browser.InternetExplorer);
}
// Apple Safari
if (agent.Contains(Browser.Safari))
{
return(Browser.Safari);
}
// Firefox
if (agent.Contains(Browser.Firefox))
{
return(Browser.Firefox);
}
// Opera
if (agent.Contains(Browser.Opera))
{
return(Browser.Opera);
}
return(Browser.Others);
}
public void ContainsArray()
{
var agent = new UserAgent("abc");
Assert.False(agent.Contains(new[] { (string)null }));
Assert.False(agent.Contains(new[] { "" }));
Assert.False(agent.Contains(new[] { (string)null, "" }));
Assert.True(agent.Contains(new[] { "ABC" }));
Assert.True(agent.Contains(new[] { "ABC", "abc" }));
Assert.False(agent.Contains(new[] { "ABCD" }));
}
private static Crawler GetCrawler(UserAgent agent, IEnumerable <string> others)
{
if (agent.IsNullOrEmpty())
{
return(Crawler.Unknown);
}
foreach (var crawler in Crawlers)
{
if (agent.Contains(crawler))
{
return(crawler);
}
}
return(HasOthers(agent, others)
? Crawler.Others
: Crawler.Unknown);
}
private static bool IsMobile(UserAgent agent, HttpRequest request) => agent.Contains(MobileCollection.Keywords) || agent.StartsWith(MobileCollection.Prefixes, 4) || IsOperaMini(request) || IsUserAgentWap(request) || IsAcceptHeaderWap(request);
private static bool IsEdge(UserAgent agent)
=> agent.Contains(Browser.Edge) ||
(agent.Contains("Win64") && agent.Contains("Edg"));
private static bool IsInternetExplorer(UserAgent agent, Platform os, Engine engine)
=> engine == Engine.Trident ||
agent.Contains("MSIE") &&
!agent.Contains(Browser.Opera);
private static bool HasOthers(UserAgent agent, IEnumerable <string> others)
=> agent.Contains(others) ||
agent.Contains("bot");
private static bool IsTV(UserAgent agent)
=> agent.Contains(Device.Tv) || agent.Contains("BRAVIA");
private static bool IsMobile(UserAgent agent) => agent.Contains(MobileCollection.Keywords) || agent.StartsWith(MobileCollection.Prefixes, 4);
private static bool IsTablet(UserAgent agent) => agent.Contains(TabletCollection.Keywords) || agent.Contains(TabletCollection.Prefixes);
private static bool IsEdge(UserAgent agent, Platform os)
=> agent.Contains(Engine.Edge) ||
agent.Contains("Edg") &&
(Platform.Windows | Platform.Android).HasFlag(os);
private static bool IsBlink(UserAgent agent) => agent.Contains(Browser.Chrome) && agent.Contains(Engine.WebKit);
