add support for disabling proxying

cmd/gothub/env.go

@@ -29,6 +29,8 @@ func env() {
 	} else {
 		fmt.Println("Docker: false")
 	}
+	// Proxying
+	fmt.Println("Proxying: " + os.Getenv("GOTHUB_PROXYING_ENABLED"))
 	// IP logging
 	fmt.Println("IP logging: " + os.Getenv("GOTHUB_IP_LOGGED"))
 	// URL request logging

cmd/gothub/setup.go

@@ -29,6 +29,7 @@ type Vars struct {
 	InstanceCountry   string
 	InstanceProvider  string
 	CloudflareStatus  string
+	Proxying	string
 }
 
 func setup() {
@@ -130,6 +131,16 @@ func setup() {
 		vars.CloudflareStatus = "false"
 	}
 
+	// ask user whether they want proxying enabled
+	fmt.Print("Do you want proxying enabled? (y/n) ")
+	var proxying string
+	fmt.Scanln(&proxying)
+	if proxying == "y" {
+		vars.Proxying = true
+	} else {
+		vars.Proxying = false
+	}
+
 	// save to .env file
 	fmt.Println("Saving environment variables to .env file...")
 	f, err := os.Create(".env")
@@ -151,6 +162,7 @@ func setup() {
 	f.WriteString("GOTHUB_INSTANCE_COUNTRY=" + vars.InstanceCountry + "\n")
 	f.WriteString("GOTHUB_INSTANCE_PROVIDER=" + vars.InstanceProvider + "\n")
 	f.WriteString("GOTHUB_INSTANCE_CLOUDFLARE=" + vars.CloudflareStatus)
+	f.WriteString("GOTHUB_PROXYING_ENABLED=" + vars.Proxying)
 
 	println("All done! You can now start your GotHub instance with 'gothub serve'.")
 	println("You can review the environment variables with 'gothub env'.")

compose.yml

@@ -9,6 +9,7 @@ services:
     environment:
       - DOCKER=true
       - GOTHUB_SETUP_COMPLETE=false
+      - GOTHUB_PROXYING_ENABLED=true/false
       - GOTHUB_IP_LOGGED=true/false
       - GOTHUB_REQUEST_URL_LOGGED=true/false
       - GOTHUB_USER_AGENT_LOGGED=true/false

pages/about.go

@@ -24,6 +24,7 @@ type PrivacyInfo struct {
 func HandleAbout(c *fiber.Ctx) error {
 	var privacyInfoArray []PrivacyInfo
 	privacyInfoArray = append(privacyInfoArray, PrivacyInfo{
+		ProxyEnabled:  os.Getenv("GOTHUB_PROXYING_ENABLED"),
 		IPAddr:        os.Getenv("GOTHUB_IP_LOGGED"),
 		ReqURL:        os.Getenv("GOTHUB_REQUEST_URL_LOGGED"),
 		UserAgent:     os.Getenv("GOTHUB_USER_AGENT_LOGGED"),

serve/serve.go

@@ -84,13 +84,19 @@ func Serve(port string) {
 		MaxAge: 31536000,
 	}
 
+	proxying, ok := os.LookupEnv("GOTHUB_PROXYING_ENABLED")
+	if !ok {
+		proxying = "true"
+	}
 	// add global headers
 	app.Use(func(c *fiber.Ctx) error {
 		c.Set("X-Frame-Options", "SAMEORIGIN")
 		c.Set("X-XSS-Protection", "1; mode=block")
 		c.Set("X-Content-Type-Options", "nosniff")
 		c.Set("Referrer-Policy", "no-referrer")
-		c.Set("Content-Security-Policy", "default-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data; font-src 'self'; script-src 'self'; frame-ancestors 'self'; form-action 'self'; base-uri 'self'; connect-src 'self';")
+		if proxying == "true" {
+			c.Set("Content-Security-Policy", "default-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data; font-src 'self'; script-src 'self'; frame-ancestors 'self'; form-action 'self'; base-uri 'self'; connect-src 'self';")
+		}
 		c.Set("Strict-Transport-Security", "max-age=31536000; includeSubDomains; preload")
 
 		return c.Next()
@@ -105,20 +111,37 @@ func Serve(port string) {
 	app.Get("/explore", ratelimiter, pages.HandleExplore)
 	app.Get("/:user", pages.HandleUser)
 	app.Get("/avatar/:id", func(c *fiber.Ctx) error {
-		utils.ProxyRequest(c, "https://avatars.githubusercontent.com/u/"+c.Params("id")+"?v=4")
-		return nil
+		if proxying == "true" {
+			utils.ProxyRequest(c, "https://avatars.githubusercontent.com/u/"+c.Params("id")+"?v=4")
+			return nil
+		} else {
+			c.Redirect("https://avatars.githubusercontent.com/u/" + c.Params("id") + "?v=4")
+			return nil
+		}
 	})
 	app.Get("/:user/:repo", pages.HandleRepo)
 	app.Get("/:user/:repo/blob/:branch/+", pages.FileView)
 	app.Get("/:user/:repo/tree/:branch/+", pages.DirView)
 	app.Get("/:user/:repo/tree/:branch", pages.HandleRepo)
 	app.Get("/download/:user/:repo/:branch", func(c *fiber.Ctx) error {
-		utils.ProxyRequest(c, "https://github.com/"+c.Params("user")+"/"+c.Params("repo")+"/archive/"+c.Params("branch")+".zip")
-		return nil
+		log.Println(proxying)
+		if proxying == "true" {
+			utils.ProxyRequest(c, "https://github.com/"+c.Params("user")+"/"+c.Params("repo")+"/archive/"+c.Params("branch")+".zip")
+			return nil
+		} else {
+			c.Redirect("https://github.com/" + c.Params("user") + "/" + c.Params("repo") + "/archive/" + c.Params("branch") + ".zip")
+			log.Println("no proxi")
+			return nil
+		}
 	})
-	app.Get("/raw/:user/:repo/:branch/:file", func(c *fiber.Ctx) error {
-		utils.ProxyRequest(c, "https://raw.githubusercontent.com/"+c.Params("user")+"/"+c.Params("repo")+"/"+c.Params("branch")+"/"+c.Params("file"))
-		return nil
+	app.Get("/raw/:user/:repo/:branch/+", func(c *fiber.Ctx) error {
+		if proxying == "true" {
+			utils.ProxyRequest(c, "https://raw.githubusercontent.com/"+c.Params("user")+"/"+c.Params("repo")+"/"+c.Params("branch")+"/"+c.Params("+"))
+			return nil
+		} else {
+			c.Redirect("https://raw.githubusercontent.com/" + c.Params("user") + "/" + c.Params("repo") + "/" + c.Params("branch") + "/" + c.Params("+"))
+			return nil
+		}
 	})
 
 	api := app.Group("/api")

views/about.html

@@ -10,6 +10,7 @@
   </p>
   <p>If this page isn't filled, please contact your instance's maintainer.</p>
   <ul>
+	<li><b>Proxying enabled:</b> {{.ProxyEnabled}}</li>
     <li><b>IP Address logged:</b> {{.IPAddr}}</li>
     <li><b>Request URL logged:</b> {{.ReqURL}}</li>
     <li><b>User Agent logged:</b> {{.UserAgent}}</li>