✨ Status pages

.idea/RoadSign.iml

@@ -11,5 +11,6 @@
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="Python 3.9 interpreter library" level="application" />
+    <orderEntry type="library" name="daisyui" level="application" />
   </component>
 </module>

.idea/jsLibraryMappings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptLibraryMappings">
+    <file url="PROJECT" libraries="{daisyui}" />
+  </component>
+</project>

go.mod

@@ -17,6 +17,9 @@ require (
 
 require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/gofiber/template v1.8.2 // indirect
+	github.com/gofiber/template/html/v2 v2.1.0 // indirect
+	github.com/gofiber/utils v1.1.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect

go.sum

@@ -16,6 +16,12 @@ github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbS
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gofiber/fiber/v2 v2.52.0 h1:S+qXi7y+/Pgvqq4DrSmREGiFwtB7Bu6+QFLuIHYw/UE=
 github.com/gofiber/fiber/v2 v2.52.0/go.mod h1:KEOE+cXMhXG0zHc9d8+E38hoX+ZN7bhOtgeF2oT6jrQ=
+github.com/gofiber/template v1.8.2 h1:PIv9s/7Uq6m+Fm2MDNd20pAFFKt5wWs7ZBd8iV9pWwk=
+github.com/gofiber/template v1.8.2/go.mod h1:bs/2n0pSNPOkRa5VJ8zTIvedcI/lEYxzV3+YPXdBvq8=
+github.com/gofiber/template/html/v2 v2.1.0 h1:FjwzqhhdJpnhyCvav60Z1ytnBqOUr5sGO/aTeob9/ng=
+github.com/gofiber/template/html/v2 v2.1.0/go.mod h1:txXsRQN/G7Fr2cqGfr6zhVHgreCfpsBS+9+DJyrddJc=
+github.com/gofiber/utils v1.1.0 h1:vdEBpn7AzIUJRhe+CiTOJdUcTg4Q9RK+pEa0KPbLdrM=
+github.com/gofiber/utils v1.1.0/go.mod h1:poZpsnhBykfnY1Mc0KeEa6mSHrS3dV0+oBWyeQmb2e0=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=

pkg/hypertext/proxies.go

@@ -10,88 +10,86 @@ import (
 	"github.com/samber/lo"
 )
 
-func UseProxies(app *fiber.App) {
-	app.All("/*", func(ctx *fiber.Ctx) error {
-		host := ctx.Hostname()
-		path := ctx.Path()
-		queries := ctx.Queries()
-		headers := ctx.GetReqHeaders()
+func ProxiesHandler(ctx *fiber.Ctx) error {
+	host := ctx.Hostname()
+	path := ctx.Path()
+	queries := ctx.Queries()
+	headers := ctx.GetReqHeaders()
 
-		// Filtering sites
-		for _, region := range navi.R.Regions {
-			// Matching rules
-			for _, location := range region.Locations {
-				if !lo.Contains(location.Host, host) {
-					continue
-				}
+	// Filtering sites
+	for _, region := range navi.R.Regions {
+		// Matching rules
+		for _, location := range region.Locations {
+			if !lo.Contains(location.Host, host) {
+				continue
+			}
 
-				if !func() bool {
-					flag := false
-					for _, pattern := range location.Path {
-						if ok, _ := regexp.MatchString(pattern, path); ok {
-							flag = true
-							break
-						}
+			if !func() bool {
+				flag := false
+				for _, pattern := range location.Path {
+					if ok, _ := regexp.MatchString(pattern, path); ok {
+						flag = true
+						break
 					}
-					return flag
-				}() {
-					continue
 				}
+				return flag
+			}() {
+				continue
+			}
 
-				// Filter query strings
-				flag := true
-				for rk, rv := range location.Queries {
-					for ik, iv := range queries {
-						if rk != ik && rv != iv {
-							flag = false
-							break
-						}
-					}
-					if !flag {
+			// Filter query strings
+			flag := true
+			for rk, rv := range location.Queries {
+				for ik, iv := range queries {
+					if rk != ik && rv != iv {
+						flag = false
 						break
 					}
 				}
 				if !flag {
-					continue
+					break
 				}
+			}
+			if !flag {
+				continue
+			}
 
-				// Filter headers
-				for rk, rv := range location.Headers {
-					for ik, iv := range headers {
-						if rk == ik {
-							for _, ov := range iv {
-								if !lo.Contains(rv, ov) {
-									flag = false
-									break
-								}
+			// Filter headers
+			for rk, rv := range location.Headers {
+				for ik, iv := range headers {
+					if rk == ik {
+						for _, ov := range iv {
+							if !lo.Contains(rv, ov) {
+								flag = false
+								break
 							}
 						}
-						if !flag {
-							break
-						}
 					}
 					if !flag {
 						break
 					}
 				}
 				if !flag {
-					continue
+					break
 				}
-
-				idx := rand.Intn(len(location.Destinations))
-				dest := location.Destinations[idx]
-
-				// Passing all the rules means the site is what we are looking for.
-				// Let us respond to our client!
-				return makeResponse(ctx, region, &location, &dest)
 			}
-		}
+			if !flag {
+				continue
+			}
 
-		// There is no site available for this request.
-		// Just ignore it and give our client a not found status.
-		// Do not care about the user experience, we can do it in custom error handler.
-		return fiber.ErrNotFound
-	})
+			idx := rand.Intn(len(location.Destinations))
+			dest := location.Destinations[idx]
+
+			// Passing all the rules means the site is what we are looking for.
+			// Let us respond to our client!
+			return makeResponse(ctx, region, &location, &dest)
+		}
+	}
+
+	// There is no site available for this request.
+	// Just ignore it and give our client a not found status.
+	// Do not care about the user experience, we can do it in custom error handler.
+	return fiber.ErrNotFound
 }
 
 func makeResponse(c *fiber.Ctx, region *navi.Region, location *navi.Location, dest *navi.Destination) error {

pkg/hypertext/server.go

@@ -1,25 +1,32 @@
 package hypertext
 
 import (
+	"code.smartsheep.studio/goatworks/roadsign/pkg/hypertext/status"
 	"crypto/tls"
 	jsoniter "github.com/json-iterator/go"
 	"net"
+	"net/http"
 	"strings"
 	"time"
 
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/limiter"
 	"github.com/gofiber/fiber/v2/middleware/logger"
+	"github.com/gofiber/template/html/v2"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/viper"
 )
 
 func InitServer() *fiber.App {
+	views := html.NewFileSystem(http.FS(status.FS), ".gohtml")
 	app := fiber.New(fiber.Config{
+		ViewsLayout:           "views/index",
 		AppName:               "RoadSign",
 		ServerHeader:          "RoadSign",
 		DisableStartupMessage: true,
 		EnableIPValidation:    true,
+		Views:                 views,
+		ErrorHandler:          status.StatusPageHandler,
 		JSONDecoder:           jsoniter.ConfigCompatibleWithStandardLibrary.Unmarshal,
 		JSONEncoder:           jsoniter.ConfigCompatibleWithStandardLibrary.Marshal,
 		Prefork:               viper.GetBool("performance.prefork"),
@@ -50,10 +57,13 @@ func InitServer() *fiber.App {
 		app.Use(limiter.New(limiter.Config{
 			Max:        viper.GetInt("hypertext.limitation.max_qps"),
 			Expiration: 1 * time.Second,
+			LimitReached: func(c *fiber.Ctx) error {
+				return fiber.ErrTooManyRequests
+			},
 		}))
 	}
 
-	UseProxies(app)
+	app.All("/*", ProxiesHandler)
 
 	return app
 }

pkg/hypertext/status/embed.go

@@ -0,0 +1,6 @@
+package status
+
+import "embed"
+
+//go:embed all:views
+var FS embed.FS

pkg/hypertext/status/serve.go

@@ -0,0 +1,56 @@
+package status
+
+import (
+	roadsign "code.smartsheep.studio/goatworks/roadsign/pkg"
+	"errors"
+	"fmt"
+	"github.com/gofiber/fiber/v2"
+	"github.com/spf13/viper"
+)
+
+type ErrorPayload struct {
+	Title   string `json:"title"`
+	Message string `json:"message"`
+	Version string `json:"version"`
+}
+
+func StatusPageHandler(c *fiber.Ctx, err error) error {
+	var reqErr *fiber.Error
+	var status = fiber.StatusInternalServerError
+	if errors.As(err, &reqErr) {
+		status = reqErr.Code
+	}
+
+	c.Status(status)
+
+	payload := ErrorPayload{
+		Version: roadsign.AppVersion,
+	}
+
+	switch status {
+	case fiber.StatusNotFound:
+		payload.Title = "Not Found"
+		payload.Message = fmt.Sprintf("no resource for \"%s\"", c.OriginalURL())
+		return c.Render("views/not-found", payload)
+	case fiber.StatusTooManyRequests:
+		payload.Title = "Request Too Fast"
+		payload.Message = fmt.Sprintf("you have sent over %d request(s) in a second", viper.GetInt("hypertext.limitation.max_qps"))
+		return c.Render("views/too-many-requests", payload)
+	case fiber.StatusRequestEntityTooLarge:
+		payload.Title = "Request Too Large"
+		payload.Message = fmt.Sprintf("you have sent a request over %d bytes", viper.GetInt("hypertext.limitation.max_body_size"))
+		return c.Render("views/request-too-large", payload)
+	case fiber.StatusBadGateway:
+		payload.Title = "Backend Down"
+		payload.Message = fmt.Sprintf("all destnations configured to handle your request are down: %s", err.Error())
+		return c.Render("views/bad-gateway", payload)
+	case fiber.StatusGatewayTimeout:
+		payload.Title = "Backend Took Too Long To Response"
+		payload.Message = fmt.Sprintf("the destnation took too long to response your request: %s", err.Error())
+		return c.Render("views/gateway-timeout", payload)
+	default:
+		payload.Title = "Oops"
+		payload.Message = err.Error()
+		return c.Render("views/fallback", payload)
+	}
+}

pkg/hypertext/status/views/bad-gateway.gohtml

@@ -0,0 +1,6 @@
+<h1 class="text-2xl font-bold">502</h1>
+<h2 class="text-lg">No one is standing...</h2>
+
+<div class="mt-3 mx-auto p-5 w-[360px] max-w-screen bg-neutral text-neutral-content rounded">
+    <code class="capitalize">{{ .Message }}</code>
+</div>

pkg/hypertext/status/views/fallback.gohtml

@@ -0,0 +1,6 @@
+<h1 class="text-2xl font-bold">Oops</h1>
+<h2 class="text-lg">Something went wrong...</h2>
+
+<div class="mt-3 mx-auto p-5 w-[360px] max-w-screen bg-neutral text-neutral-content rounded">
+    <code class="capitalize">{{ .Message }}</code>
+</div>

pkg/hypertext/status/views/gateway-timeout.gohtml

@@ -0,0 +1,6 @@
+<h1 class="text-2xl font-bold">504</h1>
+<h2 class="text-lg">Looks like the server in the back fell asleep</h2>
+
+<div class="mt-3 mx-auto p-5 w-[360px] max-w-screen bg-neutral text-neutral-content rounded">
+    <code class="capitalize">{{ .Message }}</code>
+</div>

pkg/hypertext/status/views/index.gohtml

@@ -0,0 +1,83 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+    <link href="https://cdn.jsdelivr.net/npm/daisyui@4.6.1/dist/full.min.css" rel="stylesheet" type="text/css" />
+    <script src="https://cdn.tailwindcss.com"></script>
+
+    <script>
+      tailwind.config = {
+        daisyui: {
+          themes: [
+            {
+              light: {
+                primary: "#4750a3",
+                secondary: "#93c5fd",
+                accent: "#0f766e",
+                info: "#67e8f9",
+                success: "#15803d",
+                warning: "#f97316",
+                error: "#dc2626",
+                neutral: "#2B3440",
+                "secondary-content": "oklch(98.71% 0.0106 342.55)",
+                "neutral-content": "#D7DDE4",
+                "base-100": "oklch(100% 0 0)",
+                "base-200": "#F2F2F2",
+                "base-300": "#E5E6E6",
+                "base-content": "#1f2937",
+                "color-scheme": "light",
+                "--rounded-box": "0",
+                "--rounded-btn": "0",
+                "--rounded-badge": "0",
+                "--tab-radius": "0"
+              }
+            },
+            {
+              dark: {
+                primary: "#4750a3",
+                secondary: "#93c5fd",
+                accent: "#0f766e",
+                info: "#67e8f9",
+                success: "#15803d",
+                warning: "#f97316",
+                error: "#dc2626",
+                neutral: "#2a323c",
+                "neutral-content": "#A6ADBB",
+                "base-100": "#1d232a",
+                "base-200": "#191e24",
+                "base-300": "#15191e",
+                "base-content": "#A6ADBB",
+                "color-scheme": "dark",
+                "--rounded-box": "0",
+                "--rounded-btn": "0",
+                "--rounded-badge": "0",
+                "--tab-radius": "0"
+              }
+            }
+          ]
+        }
+      }
+    </script>
+
+    <title>{{ .Title }} | RoadSign</title>
+</head>
+<body>
+<main class="w-full h-screen flex justify-center items-center">
+    <div class="text-center">
+        {{embed}}
+
+        <footer class="mt-3 text-sm text-neutral">
+            <p>
+                Powered by
+                <a href="https://wiki.smartsheep.studio/roadsign/index.html" target="_blank" class="link link-primary">
+                    RoadSign
+                </a>
+            </p>
+            <p class="text-xs">v{{ .Version }}</p>
+        </footer>
+    </div>
+</main>
+</body>
+</html>

pkg/hypertext/status/views/not-found.gohtml

@@ -0,0 +1,6 @@
+<h1 class="text-2xl font-bold">404</h1>
+<h2 class="text-lg">Not Found</h2>
+
+<div class="mt-3 mx-auto p-5 w-[360px] max-w-screen bg-neutral text-neutral-content rounded">
+    <code class="capitalize">{{ .Message }}</code>
+</div>

pkg/hypertext/status/views/request-too-large.gohtml

@@ -0,0 +1,6 @@
+<h1 class="text-2xl font-bold">413</h1>
+<h2 class="text-lg">Auh, you are too big.</h2>
+
+<div class="mt-3 mx-auto p-5 w-[360px] max-w-screen bg-neutral text-neutral-content rounded">
+    <code class="capitalize">{{ .Message }}</code>
+</div>

pkg/hypertext/status/views/too-many-requests.gohtml

@@ -0,0 +1,6 @@
+<h1 class="text-2xl font-bold">429</h1>
+<h2 class="text-lg">Stop it, you just to fast!</h2>
+
+<div class="mt-3 mx-auto p-5 w-[360px] max-w-screen bg-neutral text-neutral-content rounded">
+    <code class="capitalize">{{ .Message }}</code>
+</div>

pkg/sideload/view/tailwind.config.js

@@ -1,14 +1,13 @@
-/** @type {import('tailwindcss').Config} */
+/** @type {import("tailwindcss").Config} */
 export default {
   content: ["./src/**/*.{js,jsx,ts,tsx}"],
   theme: {
-    extend: {},
+    extend: {}
   },
   daisyui: {
     themes: [
       {
         light: {
-          ...require("daisyui/src/theming/themes")["light"],
           primary: "#4750a3",
           secondary: "#93c5fd",
           accent: "#0f766e",
@@ -16,15 +15,22 @@ export default {
           success: "#15803d",
           warning: "#f97316",
           error: "#dc2626",
+          neutral: "#2B3440",
+          "secondary-content": "oklch(98.71% 0.0106 342.55)",
+          "neutral-content": "#D7DDE4",
+          "base-100": "oklch(100% 0 0)",
+          "base-200": "#F2F2F2",
+          "base-300": "#E5E6E6",
+          "base-content": "#1f2937",
+          "color-scheme": "light",
           "--rounded-box": "0",
           "--rounded-btn": "0",
           "--rounded-badge": "0",
-          "--tab-radius": "0",
-        },
+          "--tab-radius": "0"
+        }
       },
       {
         dark: {
-          ...require("daisyui/src/theming/themes")["dark"],
           primary: "#4750a3",
           secondary: "#93c5fd",
           accent: "#0f766e",
@@ -32,13 +38,20 @@ export default {
           success: "#15803d",
           warning: "#f97316",
           error: "#dc2626",
+          neutral: "#2a323c",
+          "neutral-content": "#A6ADBB",
+          "base-100": "#1d232a",
+          "base-200": "#191e24",
+          "base-300": "#15191e",
+          "base-content": "#A6ADBB",
+          "color-scheme": "dark",
           "--rounded-box": "0",
           "--rounded-btn": "0",
           "--rounded-badge": "0",
-          "--tab-radius": "0",
-        },
-      },
-    ],
+          "--tab-radius": "0"
+        }
+      }
+    ]
   },
-  plugins: [require("daisyui")],
-};
+  plugins: [require("daisyui")]
+}