Fix redirect bug during signup

Backend/Api/Auth/Signup.go

@@ -1,8 +1,10 @@
 package Auth
 
 import (
+	"database/sql/driver"
 	"encoding/json"
 	"net/http"
+	"time"
 
 	"git.tovijaeschke.xyz/tovi/Envelope/Backend/Database"
 )
@@ -18,8 +20,14 @@ type signup struct {
 // Signup to the platform
 func Signup(w http.ResponseWriter, r *http.Request) {
 	var (
-		user Database.User
-		err  error
+		user             Database.User
+		expiresAt        time.Time
+		session          Database.Session
+		messageExpiryRaw driver.Value
+		messageExpiry    string
+		imageLink        string
+		returnJSON       []byte
+		err              error
 	)
 
 	err = json.NewDecoder(r.Body).Decode(&user)
@@ -61,5 +69,43 @@ func Signup(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	w.WriteHeader(http.StatusNoContent)
+	// TODO: Revisit before production
+	expiresAt = time.Now().Add(12 * time.Hour)
+
+	session = Database.Session{
+		UserID: user.ID,
+		Expiry: expiresAt,
+	}
+
+	err = (&session).CreateSession()
+	if err != nil {
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	http.SetCookie(w, &http.Cookie{
+		Name:    "session_token",
+		Value:   session.ID.String(),
+		Expires: expiresAt,
+	})
+
+	if user.AttachmentID != nil {
+		imageLink = user.Attachment.FilePath
+	}
+
+	messageExpiryRaw, _ = user.MessageExpiryDefault.Value()
+	messageExpiry, _ = messageExpiryRaw.(string)
+
+	returnJSON, err = json.MarshalIndent(loginResponse{
+		UserID:               user.ID.String(),
+		Username:             user.Username,
+		AsymmetricPublicKey:  user.AsymmetricPublicKey,
+		AsymmetricPrivateKey: user.AsymmetricPrivateKey,
+		SymmetricKey:         user.SymmetricKey,
+		MessageExpiryDefault: messageExpiry,
+		ImageLink:            imageLink,
+	}, "", "  ")
+
+	w.WriteHeader(http.StatusOK)
+	w.Write(returnJSON)
 }

mobile/lib/views/authentication/signup.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:typed_data';
 
+import 'package:Envelope/utils/storage/session_cookie.dart';
 import 'package:flutter/material.dart';
 import 'package:http/http.dart' as http;
 
@@ -167,13 +168,14 @@ class _SignupWidgetState extends State<SignupWidget> {
                         return;
                       }
 
-                      ScaffoldMessenger.of(context).showSnackBar(
-                        const SnackBar(content: Text('Processing Data')),
-                      );
-
                       signUp()
                         .then((dynamic) {
-                          Navigator.of(context).popUntil((route) => route.isFirst);
+                          Navigator.
+                            pushNamedAndRemoveUntil(
+                              context,
+                              '/home',
+                              ModalRoute.withName('/home'),
+                            );
                         }).catchError((error) {
                           showMessage('Failed to signup to Envelope, please try again later', context);
                         });
@@ -266,7 +268,7 @@ class _SignupWidgetState extends State<SignupWidget> {
     );
   }
 
-  Future<SignupResponse> signUp() async {
+  Future<dynamic> signUp() async {
     await MyProfile.setServerUrl(_serverUrlController.text);
 
     var keyPair = CryptoUtils.generateRSAKeyPair();
@@ -293,12 +295,19 @@ class _SignupWidgetState extends State<SignupWidget> {
       }),
     );
 
-    SignupResponse response = SignupResponse.fromJson(jsonDecode(resp.body));
+    if (resp.statusCode != 200) {
+      throw Exception('Unable to signup to envelope');
+    }
 
-    if (resp.statusCode != 201) {
-      throw Exception(response.message);
+    String? rawCookie = resp.headers['set-cookie'];
+    if (rawCookie != null) {
+      int index = rawCookie.indexOf(';');
+      setSessionCookie((index == -1) ? rawCookie : rawCookie.substring(0, index));
     }
 
-    return response;
+    return await MyProfile.login(
+      json.decode(resp.body),
+      _passwordController.text,
+    );
   }
 }