init

2021-08-30 22:38:58 +02:00
parent 9544d89993
commit 46fa86f989
152 changed files with 4074 additions and 0 deletions
--- a/filcnaplo/lib/api/login.dart
+++ b/filcnaplo/lib/api/login.dart
@@ -0,0 +1,110 @@
+import 'package:filcnaplo_kreta_api/providers/absence_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/event_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/exam_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/grade_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/homework_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/message_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/note_provider.dart';
+import 'package:filcnaplo_kreta_api/providers/timetable_provider.dart';
+import 'package:filcnaplo/api/providers/user_provider.dart';
+import 'package:filcnaplo/api/providers/database_provider.dart';
+import 'package:filcnaplo/models/settings.dart';
+import 'package:filcnaplo/models/user.dart';
+import 'package:filcnaplo/utils/jwt.dart';
+import 'package:filcnaplo_kreta_api/client/api.dart';
+import 'package:filcnaplo_kreta_api/client/client.dart';
+import 'package:filcnaplo_kreta_api/models/message.dart';
+import 'package:filcnaplo_kreta_api/models/student.dart';
+import 'package:filcnaplo_kreta_api/models/week.dart';
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:filcnaplo/api/nonce.dart';
+
+enum LoginState { normal, inProgress, missingFields, invalidGrant, success, failed }
+
+Nonce getNonce(BuildContext context, String nonce, String username, String instituteCode) {
+  Nonce nonceEncoder = Nonce(key: [53, 75, 109, 112, 109, 103, 100, 53, 102, 74], nonce: nonce);
+  nonceEncoder.encode(username.toLowerCase() + instituteCode.toLowerCase() + nonce);
+
+  return nonceEncoder;
+}
+
+Future loginApi({
+  required String username,
+  required String password,
+  required String instituteCode,
+  required BuildContext context,
+  void Function(User)? onLogin,
+  void Function()? onSuccess,
+}) async {
+  Provider.of<KretaClient>(context, listen: false).userAgent = Provider.of<SettingsProvider>(context, listen: false).config.userAgent;
+
+  Map<String, String> headers = {
+    "content-type": "application/x-www-form-urlencoded",
+  };
+
+  String nonceStr = await Provider.of<KretaClient>(context, listen: false).getAPI(KretaAPI.nonce, json: false);
+
+  Nonce nonce = getNonce(context, nonceStr, username, instituteCode);
+  headers.addAll(nonce.header());
+
+  Map? res = await Provider.of<KretaClient>(context, listen: false).postAPI(KretaAPI.login,
+      headers: headers,
+      body: User.loginBody(
+        username: username,
+        password: password,
+        instituteCode: instituteCode,
+      ));
+  if (res != null) {
+    if (res.containsKey("error")) {
+      if (res["error"] == "invalid_grant") {
+        return LoginState.invalidGrant;
+      }
+    } else {
+      if (res.containsKey("access_token")) {
+        try {
+          Provider.of<KretaClient>(context, listen: false).accessToken = res["access_token"];
+          Map? studentJson = await Provider.of<KretaClient>(context, listen: false).getAPI(KretaAPI.student(instituteCode));
+          var user = User(
+            username: username,
+            password: password,
+            instituteCode: instituteCode,
+            name: JwtUtils.getNameFromJWT(res["access_token"]) ?? "?",
+            student: Student.fromJson(studentJson!),
+          );
+
+          if (onLogin != null) onLogin(user);
+
+          // Store User in the database
+          await Provider.of<DatabaseProvider>(context, listen: false).store.storeUser(user);
+          Provider.of<UserProvider>(context, listen: false).addUser(user);
+          Provider.of<UserProvider>(context, listen: false).setUser(user.id);
+
+          // Get user data
+          try {
+            await Provider.of<GradeProvider>(context, listen: false).fetch();
+            await Provider.of<TimetableProvider>(context, listen: false).fetch(week: Week.current());
+            await Provider.of<ExamProvider>(context, listen: false).fetch();
+            await Provider.of<HomeworkProvider>(context, listen: false).fetch();
+            await Provider.of<MessageProvider>(context, listen: false).fetch(type: MessageType.inbox);
+            await Provider.of<NoteProvider>(context, listen: false).fetch();
+            await Provider.of<EventProvider>(context, listen: false).fetch();
+            await Provider.of<AbsenceProvider>(context, listen: false).fetch();
+          } catch (error) {
+            print("WARNING: failed to fetch user data: $error");
+          }
+
+          if (onSuccess != null) onSuccess();
+
+          return LoginState.success;
+        } catch (error) {
+          print("ERROR: loginApi: $error");
+          // maybe check debug mode
+          // ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text("ERROR: $error")));
+          return LoginState.failed;
+        }
+      }
+    }
+  }
+  return LoginState.failed;
+}