From 6a56b03bf6d87d2cfce91e7cbbb2a82a9ae2b5f2 Mon Sep 17 00:00:00 2001
From: Florian Hoss <mail@florianhoss.de>
Date: Mon, 4 Apr 2022 11:53:05 +0200
Subject: [PATCH] change post to get request with header

---
 Lab01/app/templates/_base.tmpl    | 23 ++++++-----------------
 Lab01/app/templates/register.tmpl |  2 --
 Lab01/app/webpage/webpage.go      | 12 ++++++------
 3 files changed, 12 insertions(+), 25 deletions(-)

diff --git a/Lab01/app/templates/_base.tmpl b/Lab01/app/templates/_base.tmpl
index 894ebe0..6702099 100644
--- a/Lab01/app/templates/_base.tmpl
+++ b/Lab01/app/templates/_base.tmpl
@@ -22,13 +22,13 @@
             <div class="collapse navbar-collapse" id="navbarSupportedContent">
                 <ul class="ms-auto navbar-nav mb-2 mb-lg-0">
                     <li class="nav-item me-2">
-                        <a hidden id="button-tasks" class="btn btn-primary" href="/tasks">Tasks</a>
+                        <a id="button-tasks" class="btn btn-primary" href="/tasks">Tasks</a>
                     </li>
                     <li class="nav-item me-2">
-                        <a hidden id="button-login" class="btn btn-primary" href="/login">Login</a>
+                        <a id="button-login" class="btn btn-primary" href="/login">Login</a>
                     </li>
                     <li class="nav-item">
-                        <button hidden id="button-logout" class="btn btn-danger" onclick="logout()">Logout</button>
+                        <button id="button-logout" class="btn btn-danger" onclick="logout()">Logout</button>
                     </li>
                 </ul>
             </div>
@@ -64,10 +64,10 @@
 
 {{define "scripts"}}
     <script>
-        const button_login = document.getElementById("button-login");
         const button_logout = document.getElementById("button-logout");
-        const button_tasks = document.getElementById("button-tasks");
         const username = getCookie("username");
+        const myHeaders = new Headers();
+        myHeaders.append('username', username);
 
         function setCookie(cookie_name, cookie_value, cookie_expiry) {
             const d = new Date();
@@ -96,19 +96,8 @@
         }
 
         async function userLoggedIn() {
-            let data = new FormData();
-            data.append("username", username);
-            const response = await fetch("/user", {method: 'POST', body: data});
+            const response = await fetch("/user", {method: 'GET', headers: myHeaders});
             const json = await response.json();
-            if (json.logged_in === true) {
-                button_login.hidden = true;
-                button_logout.hidden = false;
-                button_tasks.hidden = false;
-            } else {
-                button_login.hidden = false;
-                button_logout.hidden = true;
-                button_tasks.hidden = true;
-            }
             return json.logged_in
         }
 
diff --git a/Lab01/app/templates/register.tmpl b/Lab01/app/templates/register.tmpl
index dde85a4..c88532c 100644
--- a/Lab01/app/templates/register.tmpl
+++ b/Lab01/app/templates/register.tmpl
@@ -21,8 +21,6 @@
     async function submitForm(formData) {
         const response = await fetch("/register", {method: 'POST', body: formData, redirect: 'follow'});
         if (response.ok) {
-            const json = await response.json();
-            console.log(json);
             redirect("/");
         } else {
             redirect("/register");
diff --git a/Lab01/app/webpage/webpage.go b/Lab01/app/webpage/webpage.go
index da171d7..34ee336 100644
--- a/Lab01/app/webpage/webpage.go
+++ b/Lab01/app/webpage/webpage.go
@@ -23,14 +23,14 @@ func (wp *Webpage) defineRoutes() {
 		c.HTML(http.StatusOK, "register.tmpl", gin.H{"title": "Register"})
 	})
 
-	wp.Router.POST("/user", func(c *gin.Context) {
-		username, uExisting := c.GetPostForm("username")
-		if uExisting == false || username == "" {
-			c.JSON(400, gin.H{"message": "bad post form"})
+	wp.Router.GET("/user", func(c *gin.Context) {
+		username := c.Request.Header.Get("username")
+		if username != "" {
+			success := wp.Database.UserIsLoggedIn(username)
+			c.JSON(200, gin.H{"logged_in": success, "username": username})
 			return
 		}
-		success := wp.Database.UserIsLoggedIn(username)
-		c.JSON(200, gin.H{"logged_in": success, "username": username})
+		c.JSON(200, gin.H{"logged_in": false, "username": ""})
 	})
 
 	wp.Router.POST("/logout", func(c *gin.Context) {