frontend: specify timeout for requests (#29)

frontend/lgproxy.go

@@ -6,6 +6,7 @@ import (
 	"net/url"
 	"strconv"
 	"strings"
+	"time"
 )
 
 type channelData struct {
@@ -46,7 +47,8 @@ func batchRequest(servers []string, endpoint string, command string) []string {
 			}
 			url := "http://" + hostname + ":" + strconv.Itoa(setting.proxyPort) + "/" + url.PathEscape(endpoint) + "?q=" + url.QueryEscape(command)
 			go func(url string, i int) {
-				response, err := http.Get(url)
+				client := http.Client{Timeout: 5 * time.Second}
+				response, err := client.Get(url)
 				if err != nil {
 					ch <- channelData{i, "request failed: " + err.Error() + "\n"}
 					return

frontend/whois.go

@@ -3,6 +3,7 @@ package main
 import (
 	"io/ioutil"
 	"net"
+	"time"
 )
 
 // Send a whois request
@@ -11,7 +12,7 @@ func whois(s string) string {
 		return ""
 	}
 
-	conn, err := net.Dial("tcp", setting.whoisServer+":43")
+	conn, err := net.DialTimeout("tcp", setting.whoisServer+":43", 5*time.Second)
 	if err != nil {
 		return err.Error()
 	}