vendor dependencies with dep

vendor/github.com/mssola/user_agent/browser.go

@@ -0,0 +1,120 @@
+// Copyright (C) 2012-2014 Miquel Sabaté Solà <mikisabate@gmail.com>
+// This file is licensed under the MIT license.
+// See the LICENSE file.
+
+package user_agent
+
+import (
+	"regexp"
+	"strings"
+)
+
+// A struct containing all the information that we might be
+// interested from the browser.
+type Browser struct {
+	// The name of the browser's engine.
+	Engine string
+
+	// The version of the browser's engine.
+	EngineVersion string
+
+	// The name of the browser.
+	Name string
+
+	// The version of the browser.
+	Version string
+}
+
+// Extract all the information that we can get from the User-Agent string
+// about the browser and update the receiver with this information.
+//
+// The function receives just one argument "sections", that contains the
+// sections from the User-Agent string after being parsed.
+func (p *UserAgent) detectBrowser(sections []section) {
+	slen := len(sections)
+
+	if sections[0].name == "Opera" {
+		p.mozilla = ""
+		p.browser.Name = "Opera"
+		p.browser.Version = sections[0].version
+		p.browser.Engine = "Presto"
+		if slen > 1 {
+			p.browser.EngineVersion = sections[1].version
+		}
+	} else if slen > 1 {
+		engine := sections[1]
+		p.browser.Engine = engine.name
+		p.browser.EngineVersion = engine.version
+		if slen > 2 {
+			p.browser.Version = sections[2].version
+			if engine.name == "AppleWebKit" {
+				if sections[slen-1].name == "OPR" {
+					p.browser.Name = "Opera"
+					p.browser.Version = sections[slen-1].version
+				} else if sections[2].name == "Chrome" {
+					p.browser.Name = "Chrome"
+				} else {
+					p.browser.Name = "Safari"
+				}
+			} else if engine.name == "Gecko" {
+				name := sections[2].name
+				if name == "MRA" && slen > 4 {
+					name = sections[4].name
+					p.browser.Version = sections[4].version
+				}
+				p.browser.Name = name
+			} else if engine.name == "like" && sections[2].name == "Gecko" {
+				// This is the new user agent from Internet Explorer 11.
+				p.browser.Engine = "Trident"
+				p.browser.Name = "Internet Explorer"
+				reg, _ := regexp.Compile("^rv:(.+)$")
+				for _, c := range sections[0].comment {
+					version := reg.FindStringSubmatch(c)
+					if len(version) > 0 {
+						p.browser.Version = version[1]
+						return
+					}
+				}
+				p.browser.Version = ""
+			}
+		}
+	} else if slen == 1 && len(sections[0].comment) > 1 {
+		comment := sections[0].comment
+		if comment[0] == "compatible" && strings.HasPrefix(comment[1], "MSIE") {
+			p.browser.Engine = "Trident"
+			p.browser.Name = "Internet Explorer"
+			// The MSIE version may be reported as the compatibility version.
+			// For IE 8 through 10, the Trident token is more accurate.
+			// http://msdn.microsoft.com/en-us/library/ie/ms537503(v=vs.85).aspx#VerToken
+			for _, v := range comment {
+				if strings.HasPrefix(v, "Trident/") {
+					switch v[8:] {
+					case "4.0":
+						p.browser.Version = "8.0"
+					case "5.0":
+						p.browser.Version = "9.0"
+					case "6.0":
+						p.browser.Version = "10.0"
+					}
+					break
+				}
+			}
+			// If the Trident token is not provided, fall back to MSIE token.
+			if p.browser.Version == "" {
+				p.browser.Version = strings.TrimSpace(comment[1][4:])
+			}
+		}
+	}
+}
+
+// Returns two strings. The first string is the name of the engine and the
+// second one is the version of the engine.
+func (p *UserAgent) Engine() (string, string) {
+	return p.browser.Engine, p.browser.EngineVersion
+}
+
+// Returns two strings. The first string is the name of the browser and the
+// second one is the version of the browser.
+func (p *UserAgent) Browser() (string, string) {
+	return p.browser.Name, p.browser.Version
+}