Create basic server

Includes app config and some initialization

app.go

@@ -0,0 +1,81 @@
+package writefreely
+
+import (
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/gorilla/mux"
+	"github.com/gorilla/sessions"
+	"github.com/writeas/web-core/log"
+	"github.com/writeas/writefreely/config"
+)
+
+const (
+	staticDir = "static/"
+)
+
+type app struct {
+	router       *mux.Router
+	cfg          *config.Config
+	keys         *keychain
+	sessionStore *sessions.CookieStore
+}
+
+var shttp = http.NewServeMux()
+
+func Serve() {
+	log.Info("Initializing...")
+
+	log.Info("Loading configuration...")
+	cfg, err := config.Load()
+	if err != nil {
+		log.Error("Unable to load configuration: %v", err)
+		os.Exit(1)
+	}
+	app := &app{
+		cfg: cfg,
+	}
+
+	// Load keys
+	log.Info("Loading encryption keys...")
+	err = initKeys(app)
+	if err != nil {
+		log.Error("\n%s\n", err)
+	}
+
+	// Initialize modules
+	r := mux.NewRouter()
+	handler := NewHandler(app.sessionStore)
+
+	// Handle app routes
+	initRoutes(handler, r, app.cfg)
+
+	// Handle static files
+	fs := http.FileServer(http.Dir(staticDir))
+	shttp.Handle("/", fs)
+	r.PathPrefix("/").Handler(fs)
+
+	// Handle shutdown
+	c := make(chan os.Signal, 2)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		<-c
+		log.Info("Shutting down...")
+		shutdown(app)
+		log.Info("Done.")
+		os.Exit(0)
+	}()
+
+	// Start web application server
+	http.Handle("/", r)
+	log.Info("Serving on http://localhost:%d\n", app.cfg.Server.Port)
+	log.Info("---")
+	http.ListenAndServe(fmt.Sprintf(":%d", app.cfg.Server.Port), nil)
+}
+
+func shutdown(app *app) {
+}