1 files changed, 336 insertions, 0 deletions
diff --git a/vendor/github.com/avct/uasurfer/system.go b/vendor/github.com/avct/uasurfer/system.go
new file mode 100644
index 000000000..e823c9cc7
--- /dev/null
+++ b/vendor/github.com/avct/uasurfer/system.go
@@ -0,0 +1,336 @@
+package uasurfer
+
+import (
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+var (
+	amazonFireFingerprint = regexp.MustCompile("\\s(k[a-z]{3,5}|sd\\d{4}ur)\\s") //tablet or phone
+)
+
+func (u *UserAgent) evalOS(ua string) bool {
+
+	s := strings.IndexRune(ua, '(')
+	e := strings.IndexRune(ua, ')')
+	if s > e {
+		s = 0
+		e = len(ua)
+	}
+	if e == -1 {
+		e = len(ua)
+	}
+
+	agentPlatform := ua[s+1 : e]
+	specsEnd := strings.Index(agentPlatform, ";")
+	var specs string
+	if specsEnd != -1 {
+		specs = agentPlatform[:specsEnd]
+	} else {
+		specs = agentPlatform
+	}
+
+	//strict OS & version identification
+	switch specs {
+	case "android":
+		u.evalLinux(ua, agentPlatform)
+
+	case "bb10", "playbook":
+		u.OS.Platform = PlatformBlackberry
+		u.OS.Name = OSBlackberry
+
+	case "x11", "linux":
+		u.evalLinux(ua, agentPlatform)
+
+	case "ipad", "iphone", "ipod touch", "ipod":
+		u.evaliOS(specs, agentPlatform)
+
+	case "macintosh":
+		u.evalMacintosh(ua)
+
+	default:
+		switch {
+		// Blackberry
+		case strings.Contains(ua, "blackberry") || strings.Contains(ua, "playbook"):
+			u.OS.Platform = PlatformBlackberry
+			u.OS.Name = OSBlackberry
+
+		// Windows Phone
+		case strings.Contains(agentPlatform, "windows phone "):
+			u.evalWindowsPhone(agentPlatform)
+
+		// Windows, Xbox
+		case strings.Contains(ua, "windows ") || strings.Contains(ua, "microsoft-cryptoapi"):
+			u.evalWindows(ua)
+
+		// Kindle
+		case strings.Contains(ua, "kindle/") || amazonFireFingerprint.MatchString(agentPlatform):
+			u.OS.Platform = PlatformLinux
+			u.OS.Name = OSKindle
+
+		// Linux (broader attempt)
+		case strings.Contains(ua, "linux"):
+			u.evalLinux(ua, agentPlatform)
+
+		// WebOS (non-linux flagged)
+		case strings.Contains(ua, "webos") || strings.Contains(ua, "hpwos"):
+			u.OS.Platform = PlatformLinux
+			u.OS.Name = OSWebOS
+
+		// Nintendo
+		case strings.Contains(ua, "nintendo"):
+			u.OS.Platform = PlatformNintendo
+			u.OS.Name = OSNintendo
+
+		// Playstation
+		case strings.Contains(ua, "playstation") || strings.Contains(ua, "vita") || strings.Contains(ua, "psp"):
+			u.OS.Platform = PlatformPlaystation
+			u.OS.Name = OSPlaystation
+
+		// Android
+		case strings.Contains(ua, "android"):
+			u.evalLinux(ua, agentPlatform)
+
+		// Apple CFNetwork
+		case strings.Contains(ua, "cfnetwork") && strings.Contains(ua, "darwin"):
+			u.evalMacintosh(ua)
+
+		default:
+			u.OS.Platform = PlatformUnknown
+			u.OS.Name = OSUnknown
+		}
+	}
+
+	return u.isBot()
+}
+
+func (u *UserAgent) isBot() bool {
+
+	if u.OS.Platform == PlatformBot || u.OS.Name == OSBot {
+		u.DeviceType = DeviceComputer
+		return true
+	}
+
+	if u.Browser.Name >= BrowserBot && u.Browser.Name <= BrowserYahooBot {
+		u.OS.Platform = PlatformBot
+		u.OS.Name = OSBot
+		u.DeviceType = DeviceComputer
+		return true
+	}
+
+	return false
+}
+
+// evalLinux returns the `Platform`, `OSName` and Version of UAs with
+// 'linux' listed as their platform.
+func (u *UserAgent) evalLinux(ua string, agentPlatform string) {
+
+	switch {
+	// Kindle Fire
+	case strings.Contains(ua, "kindle") || amazonFireFingerprint.MatchString(agentPlatform):
+		// get the version of Android if available, though we don't call this OSAndroid
+		u.OS.Platform = PlatformLinux
+		u.OS.Name = OSKindle
+		u.OS.Version.findVersionNumber(agentPlatform, "android ")
+
+	// Android, Kindle Fire
+	case strings.Contains(ua, "android") || strings.Contains(ua, "googletv"):
+		// Android
+		u.OS.Platform = PlatformLinux
+		u.OS.Name = OSAndroid
+		u.OS.Version.findVersionNumber(agentPlatform, "android ")
+
+	// ChromeOS
+	case strings.Contains(ua, "cros"):
+		u.OS.Platform = PlatformLinux
+		u.OS.Name = OSChromeOS
+
+	// WebOS
+	case strings.Contains(ua, "webos") || strings.Contains(ua, "hpwos"):
+		u.OS.Platform = PlatformLinux
+		u.OS.Name = OSWebOS
+
+	// Linux, "Linux-like"
+	case strings.Contains(ua, "x11") || strings.Contains(ua, "bsd") || strings.Contains(ua, "suse") || strings.Contains(ua, "debian") || strings.Contains(ua, "ubuntu"):
+		u.OS.Platform = PlatformLinux
+		u.OS.Name = OSLinux
+
+	default:
+		u.OS.Platform = PlatformLinux
+		u.OS.Name = OSLinux
+	}
+}
+
+// evaliOS returns the `Platform`, `OSName` and Version of UAs with
+// 'ipad' or 'iphone' listed as their platform.
+func (u *UserAgent) evaliOS(uaPlatform string, agentPlatform string) {
+
+	switch uaPlatform {
+	// iPhone
+	case "iphone":
+		u.OS.Platform = PlatformiPhone
+		u.OS.Name = OSiOS
+		u.OS.getiOSVersion(agentPlatform)
+
+	// iPad
+	case "ipad":
+		u.OS.Platform = PlatformiPad
+		u.OS.Name = OSiOS
+		u.OS.getiOSVersion(agentPlatform)
+
+	// iPod
+	case "ipod touch", "ipod":
+		u.OS.Platform = PlatformiPod
+		u.OS.Name = OSiOS
+		u.OS.getiOSVersion(agentPlatform)
+
+	default:
+		u.OS.Platform = PlatformiPad
+		u.OS.Name = OSUnknown
+	}
+}
+
+func (u *UserAgent) evalWindowsPhone(agentPlatform string) {
+	u.OS.Platform = PlatformWindowsPhone
+
+	if u.OS.Version.findVersionNumber(agentPlatform, "windows phone os ") || u.OS.Version.findVersionNumber(agentPlatform, "windows phone ") {
+		u.OS.Name = OSWindowsPhone
+	} else {
+		u.OS.Name = OSUnknown
+	}
+}
+
+func (u *UserAgent) evalWindows(ua string) {
+
+	switch {
+	//Xbox -- it reads just like Windows
+	case strings.Contains(ua, "xbox"):
+		u.OS.Platform = PlatformXbox
+		u.OS.Name = OSXbox
+		if !u.OS.Version.findVersionNumber(ua, "windows nt ") {
+			u.OS.Version.Major = 6
+			u.OS.Version.Minor = 0
+			u.OS.Version.Patch = 0
+		}
+
+	// No windows version
+	case !strings.Contains(ua, "windows "):
+		u.OS.Platform = PlatformWindows
+		u.OS.Name = OSUnknown
+
+	case strings.Contains(ua, "windows nt ") && u.OS.Version.findVersionNumber(ua, "windows nt "):
+		u.OS.Platform = PlatformWindows
+		u.OS.Name = OSWindows
+
+	case strings.Contains(ua, "windows xp"):
+		u.OS.Platform = PlatformWindows
+		u.OS.Name = OSWindows
+		u.OS.Version.Major = 5
+		u.OS.Version.Minor = 1
+		u.OS.Version.Patch = 0
+
+	default:
+		u.OS.Platform = PlatformWindows
+		u.OS.Name = OSUnknown
+
+	}
+}
+
+func (u *UserAgent) evalMacintosh(uaPlatformGroup string) {
+	u.OS.Platform = PlatformMac
+	if i := strings.Index(uaPlatformGroup, "os x 10"); i != -1 {
+		u.OS.Name = OSMacOSX
+		u.OS.Version.parse(uaPlatformGroup[i+5:])
+
+		return
+	}
+	u.OS.Name = OSUnknown
+}
+
+func (v *Version) findVersionNumber(s string, m string) bool {
+	if ind := strings.Index(s, m); ind != -1 {
+		return v.parse(s[ind+len(m):])
+	}
+	return false
+}
+
+// getiOSVersion accepts the platform portion of a UA string and returns
+// a Version.
+func (o *OS) getiOSVersion(uaPlatformGroup string) {
+	if i := strings.Index(uaPlatformGroup, "cpu iphone os "); i != -1 {
+		o.Version.parse(uaPlatformGroup[i+14:])
+		return
+	}
+
+	if i := strings.Index(uaPlatformGroup, "cpu os "); i != -1 {
+		o.Version.parse(uaPlatformGroup[i+7:])
+		return
+	}
+
+	o.Version.parse(uaPlatformGroup)
+}
+
+// strToInt simply accepts a string and returns a `int`,
+// with '0' being default.
+func strToInt(str string) int {
+	i, _ := strconv.Atoi(str)
+	return i
+}
+
+// strToVer accepts a string and returns a Version,
+// with {0, 0, 0} being default.
+func (v *Version) parse(str string) bool {
+	if len(str) == 0 || str[0] < '0' || str[0] > '9' {
+		return false
+	}
+	for i := 0; i < 3; i++ {
+		empty := true
+		val := 0
+		l := len(str) - 1
+
+		for k, c := range str {
+			if c >= '0' && c <= '9' {
+				if empty {
+					val = int(c) - 48
+					empty = false
+					if k == l {
+						str = str[:0]
+					}
+					continue
+				}
+
+				if val == 0 {
+					if c == '0' {
+						if k == l {
+							str = str[:0]
+						}
+						continue
+					}
+					str = str[k:]
+					break
+				}
+
+				val = 10*val + int(c) - 48
+				if k == l {
+					str = str[:0]
+				}
+				continue
+			}
+			str = str[k+1:]
+			break
+		}
+
+		switch i {
+		case 0:
+			v.Major = val
+
+		case 1:
+			v.Minor = val
+
+		case 2:
+			v.Patch = val
+		}
+	}
+	return true
+}