move client tag parsing to separate file, add unit tests

--HG--
branch : nmdc-ircfrontend

clientTag.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"strings"
+)
+
+type clientTag struct {
+	AppName string
+	Version string
+}
+
+func parseVersion(ver string) clientTag {
+	// A bit long and unwieldy.
+	// Heuristic: keep the first word, and the the first word containing digits
+
+	ret := clientTag{
+		AppName: APP_NAME,
+		Version: APP_VERSION,
+	}
+
+	ver = strings.Trim(strings.Replace(ver, ":", " ", -1), " ")
+
+	words := strings.Split(ver, " ")
+
+	for _, word := range words[1:] {
+		if strings.ContainsAny(word, "0123456789") {
+			ret.AppName = words[0]
+			ret.Version = strings.Replace(word, "(", "", -1) // AndroIRC
+			break
+		}
+	}
+
+	// Strip leading v from mIRC
+	if len(ret.Version) >= 2 && (ret.Version[0] == 'v' || ret.Version[0] == 'V') && strings.ContainsAny(string(ret.Version[1]), "0123456789") {
+		ret.Version = ret.Version[1:]
+	}
+
+	return ret
+}

clientTag_test.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestParseVersion(t *testing.T) {
+
+	tests := [][3]string{
+
+		[3]string{
+			"HexChat 2.12.1 [x64] / Microsoft Windows 10 Pro (x64) [Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz (3.60GHz)]",
+			"HexChat", "2.12.1",
+		},
+
+		[3]string{
+			"AndroIRC - Android IRC Client (5.2 - Build 6830152) - http://www.androirc.com",
+			"AndroIRC", "5.2",
+		},
+
+		[3]string{
+			"AndChat 1.4.3.2 http://www.andchat.ne",
+			"AndChat", "1.4.3.2",
+		},
+
+		[3]string{
+			"liteIRC for Android 1.1.8",
+			"liteIRC", "1.1.8",
+		},
+
+		[3]string{
+			":Relay:1.0:Android",
+			"Relay", "1.0",
+		},
+
+		[3]string{
+			"mIRC v7.45",
+			"mIRC", "7.45",
+		},
+
+		[3]string{
+			"Revolution IRC:0.3.2:Android",
+			"Revolution", "0.3.2",
+		},
+	}
+
+	for _, test := range tests {
+		result := parseVersion(test[0])
+		if result.AppName != test[1] || result.Version != test[2] {
+			t.Fatalf("Got <%s,%s> expecting <%s,%s>\n", result.AppName, result.Version, test[1], test[2])
+		}
+	}
+}

server.go

@@ -549,46 +549,21 @@ func (s *Server) maybeStartUpstream() {
 }
 
 func (s *Server) SetClientSoftwareVersion(ver string) {
-	// "HexChat 2.12.1 [x64] / Microsoft Windows 10 Pro (x64) [Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz (3.60GHz)]"
-	// "AndroIRC - Android IRC Client (5.2 - Build 6830152) - http://www.androirc.com"
-	// "AndChat 1.4.3.2 http://www.andchat.net"
-	// "liteIRC for Android 1.1.8"
-	// ":Relay:1.0:Android"
-	// "mIRC v7.45"
 
-	// A bit long and unwieldy.
-	// Heuristic: keep the first word, and the the first word containing digits
+	ct := parseVersion(ver)
 
-	tag := APP_NAME
-	version := APP_VERSION
+	s.verbosef("Replacing client tag with '%s' version '%s'", ct.AppName, ct.Version)
 
-	words := strings.Split(ver, " ")
-
-	for _, word := range words[1:] {
-		if strings.ContainsAny(word, "0123456789") {
-			tag = words[0]
-			version = strings.Replace(word, "(", "", -1) // AndroIRC
-			break
-		}
-	}
-
-	// Strip leading v from mIRC
-	if len(version) >= 2 && (version[0] == 'v' || version[0] == 'V') && strings.ContainsAny(string(version[1]), "0123456789") {
-		version = version[1:]
-	}
-
-	s.verbosef("Replacing client tag with '%s' version '%s'", tag, version)
-
-	s.upstreamLauncher.Self.ClientTag = tag
-	s.upstreamLauncher.Self.ClientVersion = version
+	s.upstreamLauncher.Self.ClientTag = ct.AppName
+	s.upstreamLauncher.Self.ClientVersion = ct.Version
 	s.recievedCtcpVersion = true
 
 	s.ClientStateLock.Lock()
 	defer s.ClientStateLock.Unlock()
 
 	if s.upstream != nil {
-		s.upstream.Hco.Self.ClientTag = tag
-		s.upstream.Hco.Self.ClientVersion = version
+		s.upstream.Hco.Self.ClientTag = ct.AppName
+		s.upstream.Hco.Self.ClientVersion = ct.Version
 		s.upstream.SayInfo()
 
 	} else {