feat: linklist

cmd/bs1in/bs1in.go

@@ -4,22 +4,28 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"html/template"
 	"path"
+	"strings"
 
 	"log"
 	"net/http"
+
+	"go.mongodb.org/mongo-driver/bson/primitive"
 )
 
 func main() {
 	http.HandleFunc("/login", handleLogin)
 	http.HandleFunc("/register", handleRegister)
-	http.HandleFunc("/logout", validateSession(handleLogout, ""))
 
 	http.HandleFunc("/", validateSession(handleIndex, ""))
 	http.HandleFunc("/database", validateSession(handleDatabase, ""))
+	http.HandleFunc("/linklist", validateSession(handleLinkList, ""))
 	http.HandleFunc("/admin_panel", validateSession(handleAdminPanel, "admin"))
+
+	http.HandleFunc("/logout", validateSession(handleLogout, ""))
 	// provide the inc directory to the useragent
 	http.HandleFunc("/static/", validateSession(handleStatic, ""))
 	// listen on port 8080 (I use nginx to proxy this local server)
@@ -47,6 +53,58 @@ func handleIndex(w http.ResponseWriter, r *http.Request) {
 	t.Execute(w, td)
 }
 
+func handleLinkList(w http.ResponseWriter, r *http.Request) {
+	currUser := r.Context().Value(currUserKey).(User)
+	if r.Method == http.MethodGet {
+		t, _ := getTemplate("layouts/base.html", "linklist.html", "header.html")
+		linkList := getLinksFromDatabase()
+		// Put linklist into template
+		td := TmplData{currUser, struct {
+			User  User
+			Links []Link
+		}{currUser, linkList}}
+		t.Execute(w, td)
+	} else if r.Method == http.MethodPost {
+		// If not admin -> do nothing
+		if currUser.Role != "admin" {
+			w.WriteHeader(http.StatusForbidden)
+			return
+		}
+		if err := r.ParseForm(); err != nil {
+			log.Fatal(err)
+		}
+		url := r.PostForm.Get("url")
+		desc := r.PostForm.Get("description")
+
+		if !strings.HasPrefix(url, "http://") ||
+			!strings.HasPrefix(url, "https://") {
+			url = "https://" + url
+		}
+
+		if addLinkToDatabase(Link{primitive.NewObjectID(), url, desc}) {
+			w.Header().Set("Location", "/linklist")
+			w.WriteHeader(http.StatusFound)
+		}
+	} else if r.Method == http.MethodDelete {
+		// If not admin -> do nothing
+		if currUser.Role != "admin" {
+			w.WriteHeader(http.StatusForbidden)
+			return
+		}
+		d := json.NewDecoder(r.Body)
+		var link Link
+		err := d.Decode(&link)
+		if err != nil {
+			log.Println(err, r.Body)
+		}
+		if !deleteLinkFromDatabase(link.ID) {
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		w.WriteHeader(http.StatusOK)
+	}
+}
+
 func handleAdminPanel(w http.ResponseWriter, r *http.Request) {
 	if r.Method == http.MethodGet {
 		t, _ := getTemplate("layouts/base.html", "soon.html", "header.html")

cmd/bs1in/database.go

@@ -19,6 +19,7 @@ import (
 
 var client mongo.Client
 var colUsers *mongo.Collection
+var colLinks *mongo.Collection
 var mongoCtx context.Context
 var mariaDB *sql.DB
 
@@ -45,6 +46,7 @@ func openMongoDBConnection() {
 	}
 
 	colUsers = client.Database("bs1in").Collection("users")
+	colLinks = client.Database("bs1in").Collection("links")
 }
 
 func openMariaDBConnection() {

cmd/bs1in/link.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"log"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+)
+
+type Link struct {
+	ID          primitive.ObjectID `bson:"_id" json:"id"`
+	Url         string             `bson:"url"`
+	Description string             `bson:"description"`
+}
+
+func addLinkToDatabase(l Link) bool {
+	_, err := colLinks.InsertOne(mongoCtx, l)
+	if err != nil {
+		log.Println("Could not add new link to database: ", err)
+		return false
+	}
+	return true
+}
+
+func deleteLinkFromDatabase(id primitive.ObjectID) bool {
+	_, err := colLinks.DeleteOne(mongoCtx, bson.M{"_id": id})
+	if err != nil {
+		log.Println("Could not remove link from database: ", err)
+		return false
+	}
+	return true
+}
+
+func getLinksFromDatabase() (links []Link) {
+	cursor, err := colLinks.Find(mongoCtx, bson.M{})
+	if err != nil {
+		log.Println("Could not remove link from database: ", err)
+		return nil
+	}
+	cursor.All(mongoCtx, &links)
+	return
+}

cmd/bs1in/user.go

@@ -13,7 +13,7 @@ import (
 type User struct {
 	ID          primitive.ObjectID `bson:"_id"`
 	UID         string             `bson:"uid"`
-	Mail        string             `bson: mail`
+	Mail        string             `bson:"mail"`
 	Pass        string             `bson:"pass"`
 	CurrSession Session            `bson:"curr_session"`
 	Role        string             `bson:"role"`

web/static/css/bs1in.css

@@ -237,4 +237,33 @@ nav > *:hover {
     position: relative;
     width: 80%;
     left: 10%;
-}
+}
+
+
+/******************* Linklist *******************/
+
+#linklist {
+    width: 100%;
+    font-weight: bold;
+    font-size: 1.4em;
+}
+
+#linklist a {
+    text-decoration: none;
+    color: var(--black);
+    display: inline-block;
+}
+
+#linklist td:last-child {
+    width: 30px;
+}
+
+#linklist button {
+    width: 30px;
+    height: 30px;
+    padding: 0;
+    line-height: 30px;
+    font-size: 0.7em;
+    color: var(--red);
+    background: none;
+}

web/static/js/linklist.js

@@ -0,0 +1,37 @@
+let ll = document.getElementById("linklist");
+let infoBox = document.getElementById("general-info");
+
+ll.addEventListener("click", e => {
+
+    let rbtn = e.target;
+
+    if (!rbtn.classList.contains("btn-delete")) {
+        return;
+    }
+
+    e.preventDefault();
+
+    let row = e.target.parentNode.parentNode;
+    let link_id = row.children[0].dataset.id;
+
+    toggleDisabled(rbtn, "on");
+
+    fetch("/linklist", {
+        method: "DELETE",
+        headers: {
+            "Content-Type": "application/json"
+        },
+        body: JSON.stringify({id: link_id})
+    }).then(res => {
+        if (res.status == 200) {
+            row.remove();
+        } else {
+            setInfo(infoBox, "Failure", "red", "grey1");
+            toggleHidden(infoBox, "off");
+            setTimeout(() => {
+                toggleHidden(infoBox, "on");
+            }, 2000);
+        }
+        toggleDisabled(rbtn, "off");
+    });
+});

web/templates/header.html

@@ -2,7 +2,8 @@
     <header>
         <nav>
             <a href="/">home</a>
-            <a target="_blank" href="https://db.eeez.de">db.eeez.de</a>
+            <!-- <a target="_blank" href="https://db.eeez.de">db.eeez.de</a> -->
+            <a href="/linklist">linklist</a>
             <a href="/admin_panel">admin</a>
             <a href="/logout">logout</a>
         </nav>

web/templates/linklist.html

@@ -0,0 +1,33 @@
+{{define "body"}}
+    <section id="wrapper">
+        <table id="linklist">
+            {{range .Links}}
+                <tr>
+                    <td data-id="{{UnwrapOID .ID}}">
+                        <a target="_blank" href="{{.Url}}">{{.Description}}</a>
+                    </td>
+                    {{- if eq $.User.Role "admin"}}
+                        <td>
+                            <button class="btn-delete">✖</button>
+                        </td>
+                    {{end}}
+                </tr>
+            {{end}}
+        </table>
+        {{- if eq .User.Role "admin"}}
+            <form action="/linklist" method="post">
+                <label for="inp-url">URL</label>
+                <input id="inp-url" name="url" type="text" value=""/>
+                <label for="inp-desc">Description</label>
+                <input id="inp-desc" name="description" type="text" value=""/>
+                <button>Create</button>
+            </form>
+            <div class="hidden" id="general-info"></div>
+        {{end}}
+    </section>
+{{end}}
+
+{{define "scripts"}}
+    <script src="/static/js/helper.js"></script>
+    <script src="/static/js/linklist.js"></script>
+{{end}}