dio: Update each page to dio request and adjust body accordingly

Author: DK10WS

lib/pages/Attendance.dart

@@ -1,13 +1,11 @@
 import 'package:flutter/material.dart';
+import 'package:mujslcm/session_manager.dart';
 import 'redirects.dart';
-import 'dart:convert';
-import 'package:http/http.dart' as http;
 import 'package:fl_chart/fl_chart.dart';
+import 'package:mujslcm/utils/util.dart';
 
 class AttendancePage extends StatefulWidget {
-  final String newCookies;
-
-  const AttendancePage({Key? key, required this.newCookies}) : super(key: key);
+  const AttendancePage({super.key});
 
   @override
   _AttendancePageState createState() => _AttendancePageState();
@@ -19,30 +17,27 @@ class _AttendancePageState extends State<AttendancePage> {
   @override
   void initState() {
     super.initState();
-    _attendanceData = fetchAttendance(widget.newCookies);
+    _attendanceData = fetchAttendance(SessionManager.sessionCookie ?? "");
   }
 
   Future<List<Map<String, dynamic>>?> fetchAttendance(String newCookies) async {
-    final Map<String, String> headers = {
-      "User-Agent":
-          "Mozilla/5.0 (X11; Linux x86_64; rv:132.0) Gecko/20100101 Firefox/132.0",
+    final Map<String, String> header = {
+      ...headers,
       "Cookie": newCookies,
     };
 
     final Map<String, String> body = {"StudentCode": ""};
 
     final attendanceUrl = Attendance;
 
-    final session = http.Client();
-    final response = await session.post(Uri.parse(attendanceUrl),
-        headers: headers, body: body);
+    final response = await post(attendanceUrl, header, body);
 
     if (response.statusCode != 200) {
       print('Failed to load attendance data');
       return null;
     }
 
-    final decoded = jsonDecode(response.body);
+    final decoded = response.data;
     final List<dynamic> attendanceList = decoded["AttendanceSummaryList"];
 
     List<Map<String, dynamic>> attendanceData = [];
@@ -68,7 +63,7 @@ class _AttendancePageState extends State<AttendancePage> {
       int? classesNeeded;
       if (newpercentage < 75) {
         classesNeeded =
-            ((0.75 * totalClasses - attendedClasses) / (1 - 0.75)).ceil();
+            ((0.75 * totalClasses - attendedClasses) / (1 - 0.75)).floor();
         statusMessage = "$classesNeeded more classes needed to reach 75%.";
       } else {
         statusMessage = "Good! Your attendance is above or equal to 75%.";
@@ -87,7 +82,6 @@ class _AttendancePageState extends State<AttendancePage> {
       });
     }
 
-    session.close();
     return attendanceData;
   }
 
@@ -113,7 +107,7 @@ class _AttendancePageState extends State<AttendancePage> {
           child: Container(
             width: double.infinity,
             height: double.infinity,
-            decoration: BoxDecoration(
+            decoration: const BoxDecoration(
               color: Color(0xFF212121),
               borderRadius: const BorderRadius.only(
                 topLeft: Radius.circular(40),

lib/pages/about.dart

@@ -1,12 +1,13 @@
+import 'package:mujslcm/session_manager.dart';
+
 import 'redirects.dart';
 import 'package:flutter/material.dart';
 import 'package:fl_chart/fl_chart.dart';
 import 'app_colors.dart';
 import 'package:mujslcm/utils/util.dart';
 
 class CGPA extends StatefulWidget {
-  final String newCookies;
-  const CGPA({super.key, required this.newCookies});
+  const CGPA({super.key});
 
   @override
   _CGPAState createState() => _CGPAState();
@@ -30,7 +31,7 @@ class _CGPAState extends State<CGPA> {
 
     final Map<String, String> header = {
       ...headers,
-      "Cookie": widget.newCookies,
+      "Cookie": SessionManager.sessionCookie ?? "",
     };
 
     final Map<String, String> body = {

lib/pages/cgpa.dart

@@ -1,12 +1,10 @@
-import 'dart:convert';
 import 'redirects.dart';
 import 'package:flutter/material.dart';
-import 'package:http/http.dart' as http;
+import 'package:mujslcm/session_manager.dart';
+import 'package:mujslcm/utils/util.dart';
 
 class Grades extends StatefulWidget {
-  final String newCookies;
-
-  const Grades({super.key, required this.newCookies});
+  const Grades({super.key});
 
   @override
   _GradesState createState() => _GradesState();
@@ -27,10 +25,9 @@ class _GradesState extends State<Grades> {
 
     final url = GradesURL;
 
-    final Map<String, String> headers = {
-      "Cookie": widget.newCookies,
-      "User-Agent":
-          "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
+    final Map<String, String> header = {
+      "Cookie": SessionManager.sessionCookie ?? "",
+      ...headers,
     };
 
     final Map<String, String> body = {
@@ -39,14 +36,11 @@ class _GradesState extends State<Grades> {
     };
 
     try {
-      final session = http.Client();
-      var response =
-          await session.post(Uri.parse(url), headers: headers, body: body);
-      session.close();
+      var response = await post(url, header, body);
 
       if (response.statusCode == 200) {
         setState(() {
-          gradesData = jsonDecode(response.body);
+          gradesData = response.data;
           isLoading = false;
         });
       } else {
@@ -89,7 +83,7 @@ class _GradesState extends State<Grades> {
     return Scaffold(
       backgroundColor: const Color(0xFF121316),
       appBar: AppBar(
-        title: Text(
+        title: const Text(
           "Grades",
           style: TextStyle(color: Colors.white),
         ),

lib/pages/grades.dart

@@ -36,9 +36,9 @@ class _HomePageState extends State<HomePage> {
   void initState() {
     super.initState();
     _pages = [
-      Information(newCookies: widget.newCookies),
+      Information(),
       HomeScreen(name: widget.name, newCookies: widget.newCookies),
-      Settings(newCookies: widget.newCookies),
+      Settings(),
     ];
   }
 
@@ -202,7 +202,7 @@ class HomeScreen extends StatelessWidget {
                     ),
                   ),
                   onPressed: () {
-                    _navigateTo(context, Timetable(newCookies: newCookies));
+                    _navigateTo(context, Timetable());
                   },
                   child: Stack(
                     alignment: Alignment.center,
@@ -255,7 +255,7 @@ class HomeScreen extends StatelessWidget {
 
   Widget _attendanceCard(BuildContext context, double screenWidth) {
     return InkWell(
-      onTap: () => _navigateTo(context, AttendancePage(newCookies: newCookies)),
+      onTap: () => _navigateTo(context, AttendancePage()),
       child: Container(
         height: screenWidth * 0.6,
         width: screenWidth * 0.9,
@@ -294,7 +294,7 @@ class HomeScreen extends StatelessWidget {
 
   Widget _marksCard(BuildContext context, double screenWidth) {
     return InkWell(
-      onTap: () => _navigateTo(context, Marks(newCookies: newCookies)),
+      onTap: () => _navigateTo(context, Marks()),
       child: ClipRRect(
         // Ensures border radius applies to children too
         borderRadius: BorderRadius.circular(25),
@@ -340,7 +340,7 @@ class HomeScreen extends StatelessWidget {
 
   Widget _cgpaCard(BuildContext context, double screenWidth) {
     return InkWell(
-      onTap: () => _navigateTo(context, CGPA(newCookies: newCookies)),
+      onTap: () => _navigateTo(context, CGPA()),
       child: Container(
         height: screenWidth * 0.6,
         width: screenWidth * 0.9,
@@ -382,7 +382,7 @@ class HomeScreen extends StatelessWidget {
 
   Widget _gradesCard(BuildContext context, double screenWidth) {
     return InkWell(
-        onTap: () => _navigateTo(context, Grades(newCookies: newCookies)),
+        onTap: () => _navigateTo(context, Grades()),
         child: ClipRRect(
           borderRadius: BorderRadius.circular(25),
           child: Container(

lib/pages/home_page.dart

@@ -6,9 +6,7 @@ import 'package:mujslcm/utils/util.dart';
 import 'package:mujslcm/session_manager.dart';
 
 class Information extends StatefulWidget {
-  final String newCookies;
-
-  const Information({Key? key, required this.newCookies}) : super(key: key);
+  const Information({super.key});
 
   @override
   State<Information> createState() => _InformationState();

lib/pages/information.dart

@@ -662,7 +662,13 @@ class _MyLoginState extends State<MyLogin> {
         document.querySelector('input[name="__RequestVerificationToken"]');
     final token = tokenElement?.attributes['value'];
 
-    final response = await post(otpValidateURL, headers, payload);
+    final response = await dio.post(otpValidateURL,
+        data: payload,
+        options: Options(
+          headers: headers,
+          contentType: Headers.formUrlEncodedContentType,
+          validateStatus: (status) => status! < 500,
+        ));
 
     final newpayload = {
       "__RequestVerificationToken": token ?? "",
@@ -726,11 +732,13 @@ class _MyLoginState extends State<MyLogin> {
         'Cookie': cleanedCookies,
       };
 
-      final loginResponse = await post(
-        url,
-        headersForLogin,
-        payload,
-      );
+      final loginResponse = await dio.post(url,
+          data: payload,
+          options: Options(
+            headers: headersForLogin,
+            contentType: Headers.formUrlEncodedContentType,
+            validateStatus: (status) => status! < 500,
+          ));
 
       if (loginResponse.statusCode == 302) {
         final API = loginResponse.headers['set-cookie'];

lib/pages/login.dart

@@ -1,13 +1,12 @@
-import 'dart:convert';
+import 'package:mujslcm/session_manager.dart';
+import 'package:mujslcm/utils/util.dart';
+
 import 'redirects.dart';
 import 'package:flutter/material.dart';
-import 'package:http/http.dart' as http;
 import 'package:fl_chart/fl_chart.dart';
 
 class Marks extends StatefulWidget {
-  final String newCookies;
-
-  const Marks({super.key, required this.newCookies});
+  const Marks({super.key});
 
   @override
   _MarksState createState() => _MarksState();
@@ -26,13 +25,9 @@ class _MarksState extends State<Marks> {
       isLoading = true;
     });
 
-    final url =
-        "https://mujslcm.jaipur.manipal.edu/Student/Academic/GetInternalMarkForFaculty";
-
-    final Map<String, String> headers = {
-      "Cookie": widget.newCookies,
-      "User-Agent":
-          "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
+    final Map<String, String> header = {
+      "Cookie": SessionManager.sessionCookie ?? "",
+      ...headers,
     };
 
     final Map<String, String> body = {
@@ -41,15 +36,12 @@ class _MarksState extends State<Marks> {
     };
 
     try {
-      final session = http.Client();
-      var response =
-          await session.post(Uri.parse(url), headers: headers, body: body);
-      session.close();
+      var response = await post(MarksURL, header, body);
 
       if (response.statusCode == 200) {
         setState(() {
           marksData = List<Map<String, dynamic>>.from(
-              jsonDecode(response.body)["InternalMarksList"]);
+              response.data["InternalMarksList"]);
           isLoading = false;
         });
       } else {
@@ -74,7 +66,7 @@ class _MarksState extends State<Marks> {
     return Scaffold(
       backgroundColor: const Color(0xFF121316),
       appBar: AppBar(
-        title: Text(
+        title: const Text(
           "Marks Details",
           style: TextStyle(color: Colors.white),
         ),

lib/pages/marks.dart

@@ -2,9 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 class Settings extends StatelessWidget {
-  final String newCookies;
-
-  const Settings({super.key, required this.newCookies});
+  const Settings({super.key});
 
   void _launchURL(String url) async {
     if (await canLaunchUrl(Uri.parse(url))) {