Committed

.gitignore

@@ -0,0 +1,2 @@
+# binary
+hostsplitter

config.go

@@ -2,8 +2,8 @@ package main
 
 import (
 	"encoding/json"
+	"fmt"
 	"io/ioutil"
-	"log"
 	"os"
 	"path"
 	"reflect"
@@ -13,6 +13,7 @@ var (
 	config map[string]interface{}
 )
 
+// LoadConfig loads the config
 func LoadConfig() {
 	stagedRoutedHostnames := make(map[string]int)
 	stagedSites := []Site{}
@@ -21,11 +22,11 @@ func LoadConfig() {
 	var files []os.FileInfo
 
 	if err = os.MkdirAll(*sitesLoc, 0600); err != nil {
-		log.Print(err)
+		fmt.Println(err)
 	}
 
 	if files, err = ioutil.ReadDir(*sitesLoc); err != nil {
-		log.Print(err)
+		fmt.Println(err)
 		return
 	}
 
@@ -53,11 +54,11 @@ func LoadConfig() {
 		stagedSites = append(stagedSites, Site{})
 
 		if dat, err = ioutil.ReadFile(*sitesLoc + "/" + f.Name()); err != nil {
-			log.Print(err)
+			fmt.Println(err)
 		}
 
 		if err = json.Unmarshal(dat, &siteConf); err != nil {
-			log.Print(err)
+			fmt.Println(err)
 		}
 
 		switch siteConf["hostnames"].(type) {
@@ -65,14 +66,14 @@ func LoadConfig() {
 			for _, hostname := range siteConf["hostnames"].([]interface{}) {
 				switch hostname.(type) {
 				case string:
-					log.Print("Adding hostname -> ", hostname)
+					fmt.Println("Adding hostname -> ", hostname)
 					stagedRoutedHostnames[hostname.(string)] = siteIndex
 				default:
-					log.Print("Expected string but got ", reflect.TypeOf(hostname), " while parsing hostname in ", f.Name())
+					fmt.Println("Expected string but got ", reflect.TypeOf(hostname), " while parsing hostname in ", f.Name())
 				}
 			}
 		default:
-			log.Print("Expected array but got ", reflect.TypeOf(siteConf["hostnames"]), " while parsing hosts in ", f.Name())
+			fmt.Println("Expected array but got ", reflect.TypeOf(siteConf["hostnames"]), " while parsing hosts in ", f.Name())
 		}
 
 		switch siteConf["backends"].(type) {
@@ -80,21 +81,21 @@ func LoadConfig() {
 			for _, backend := range siteConf["backends"].([]interface{}) {
 				switch backend.(type) {
 				case string:
-					log.Print("Adding backend -> ", backend)
+					fmt.Println("Adding backend -> ", backend)
 					stagedSites[siteIndex].Backends = append(stagedSites[siteIndex].Backends, backend.(string))
 				default:
-					log.Print("Expected string but got ", reflect.TypeOf(backend), " while parsing backend in ", f.Name())
+					fmt.Println("Expected string but got ", reflect.TypeOf(backend), " while parsing backend in ", f.Name())
 				}
 			}
 		default:
-			log.Print("Expected array but got ", reflect.TypeOf(siteConf["backends"]), " while parsing backends in ", f.Name())
+			fmt.Println("Expected array but got ", reflect.TypeOf(siteConf["backends"]), " while parsing backends in ", f.Name())
 		}
 
 		switch siteConf["secret"].(type) {
 		case string:
 			stagedSites[siteIndex].Secret = siteConf["secret"].(string)
 		default:
-			log.Print("Expected string but got ", reflect.TypeOf(siteConf["secret"]), " while parsing secret in ", f.Name())
+			fmt.Println("Expected string but got ", reflect.TypeOf(siteConf["secret"]), " while parsing secret in ", f.Name())
 		}
 
 		routedHostnames = stagedRoutedHostnames

hostsplitter.go

@@ -2,10 +2,11 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"net/http"
 	"net/http/httputil"
 	"os"
+	"strings"
+	"time"
 
 	"github.com/VividCortex/godaemon"
 	"gopkg.in/alecthomas/kingpin.v2"
@@ -13,7 +14,9 @@ import (
 
 var (
 	routedHostnames map[string]int
+	// Sites are the enabled sites
 	Sites []Site
+	// HTTPClient is the http client
 	HTTPClient http.Client
 )
 
@@ -29,20 +32,20 @@ func main() {
 
 	kingpin.Parse()
 
-	log.Print("Starting hostsplitter")
+	fmt.Println("Starting hostsplitter")
 
 	if *logFileLoc != "stdout" {
 		logFile, err := os.OpenFile(*logFileLoc, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0640)
 		defer logFile.Close()
 		if err != nil {
-			log.Fatalf("error opening file: %v", err)
+			fmt.Println("error opening file: %v", err)
 		}
-		log.Print("Using ", *logFileLoc, " for logging")
-		log.SetOutput(logFile)
+		fmt.Println("Using ", *logFileLoc, " for logging")
+		//log.SetOutput(logFile)
 	}
 
 	if *daemonize {
-		log.Print("Daemonizing... Bye Bye")
+		fmt.Println("Daemonizing... Bye Bye")
 		godaemon.MakeDaemon(&godaemon.DaemonAttr{})
 	}
 
@@ -50,22 +53,78 @@ func main() {
 
 	go SignalHandler()
 
-	log.Fatal(http.ListenAndServe(*bindAddr, &httputil.ReverseProxy{
+	fmt.Println(http.ListenAndServe(*bindAddr, &httputil.ReverseProxy{
 		Director: func(r *http.Request) {
-			HTTPLogger(r)
 			if i, ok := routedHostnames[string(r.Host)]; ok {
 				r.Header.Set("X-Hostsplitter-Secret", Sites[i].Secret)
 				r.Header.Set("Host", r.Host)
 				r.URL.Scheme = "http"
 				r.URL.Host = Sites[i].GetBackend()
 				r.RequestURI = ""
+				HTTPLogger(r, http.StatusOK)
 			} else {
-				log.Print("%q is not routed", r.Host)
+				r.URL.Host = ""
+				r.URL.Scheme = ""
+				HTTPLogger(r, http.StatusBadRequest)
 			}
 		},
 	}))
 }
 
-func HTTPLogger(r *http.Request) {
-	log.Print(fmt.Sprintf("httplog> %v %v (%v) (conlen %v)", r.Host, r.Method, r.RequestURI, r.RemoteAddr))
+const apacheFormatPattern = "%s - - [%s] \"%s %s %s\" %d %d \"%s\" \"%s\" %.4f\n"
+
+// HTTPLogger logs an http request
+func HTTPLogger(r *http.Request, status int) {
+	if *logFileLoc != "stdout" {
+		logFile, err := os.OpenFile(*logFileLoc, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0640)
+		defer logFile.Close()
+		if err != nil {
+			fmt.Println("error opening file: %v", err)
+		}
+
+		timeFormatted := time.Now().Format("02/Jan/2006 03:04:05")
+		clientIP := r.RemoteAddr
+		if colon := strings.LastIndex(clientIP, ":"); colon != -1 {
+			clientIP = clientIP[:colon]
+		}
+
+		referer := r.Referer()
+		if referer == "" {
+			referer = "-"
+		}
+
+		userAgent := r.UserAgent()
+		if userAgent == "" {
+			userAgent = "-"
+		}
+
+		fmt.Fprint(logFile, fmt.Sprintf(
+			apacheFormatPattern,
+			clientIP,
+			timeFormatted,
+			r.Method,
+			r.RequestURI,
+			r.Proto,
+			status,
+			0,
+			referer,
+			userAgent,
+			0.00,
+		))
+	}
 }
+
+/*
+	record := &ApacheLogRecord{
+		ResponseWriter: rw,
+		ip:             clientIP,
+		time:           time.Time{},
+		method:         r.Method,
+		uri:            r.RequestURI,
+		protocol:       r.Proto,
+		status:         http.StatusOK,
+		referer:        referer,
+		userAgent:      userAgent,
+		elapsedTime:    time.Duration(0),
+	}
+*/

signal_handler.go

@@ -1,18 +1,19 @@
 package main
 
 import (
-	"log"
+	"fmt"
 	"os"
 	"os/signal"
 	"syscall"
 )
 
+// SignalHandler handles a config reload on a pkill 10
 func SignalHandler() {
 	sigs := make(chan os.Signal, 1)
 	signal.Notify(sigs, syscall.Signal(0xa))
 	for {
 		if <-sigs == syscall.Signal(0xa) {
-			log.Print("Recieved 0xa, reloading config")
+			fmt.Println("Recieved 0xa, reloading config")
 			LoadConfig()
 		}
 	}