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package main
import (
"embed"
"fmt"
"github.com/gin-gonic/gin"
log "github.com/sirupsen/logrus"
"github.com/spf13/viper"
"io/fs"
"net"
"net/http"
"os"
"strconv"
"syscall"
)
//go:embed assets
var assets embed.FS
var (
router *gin.Engine
listener net.Listener
)
func webSetup() {
// Set log level according to
if log.GetLevel() == log.DebugLevel {
gin.SetMode(gin.DebugMode)
} else {
gin.SetMode(gin.ReleaseMode)
}
// Configure gin router
router = gin.New()
router.Use(recovery())
router.ForwardedByClientIP = viper.GetStringMap("server")["proxy"].(bool)
// Configure logger
if log.GetLevel() == log.DebugLevel {
router.Use(gin.LoggerWithWriter(logger{}))
}
// Register error page
router.NoRoute(func(context *gin.Context) {
context.JSON(http.StatusNotFound, gin.H{
"error": "no such file or directory",
})
})
}
func listenerSetup() {
var err error
switch serverConfig["unix"].(bool) {
case false:
address := fmt.Sprintf("%s:%s",
serverConfig["host"].(string),
strconv.Itoa(int(serverConfig["port"].(int64))))
listener, err = net.Listen("tcp", address)
if err != nil {
log.Errorf("Error binding %s, %s", address, err)
}
log.Infof("Web server listening on %s.", address)
case true:
path := serverConfig["host"].(string)
listener, err = net.Listen("unix", path)
if err != nil {
log.Errorf("Error binding %s, %s", path, err)
}
err = syscall.Chmod(path, 0777)
if err != nil {
log.Errorf("Error changing permission of web server socket, %s", err)
}
log.Infof("Web server listening on unix socket %s.", path)
}
// Configure server
server.Handler = router
}
func runWebServer() {
err := server.Serve(listener)
if err == http.ErrServerClosed {
log.Info("Web server closed.")
} else {
log.Errorf("Error starting server, %s", err)
}
}
func registerWebpage() {
router.GET("/", func(context *gin.Context) {
context.Redirect(http.StatusTemporaryRedirect, "web")
})
if stat, err := os.Stat("assets"); err == nil && stat.IsDir() {
log.Info("Serving web interface from filesystem.")
router.Static("/web", "assets")
} else {
log.Info("Serving bundled assets.")
var public fs.FS
public, err = fs.Sub(assets, "assets")
if err != nil {
log.Fatalf("Error getting subdirectory, %s", err)
}
router.StaticFS("/web", http.FS(public))
}
}
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