610 lines
28 KiB
Swift
610 lines
28 KiB
Swift
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//
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// ContentView.swift
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// Burgernotes
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//
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// Created by ffqq on 23/02/2024.
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//
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// CONTENT VIEW
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//
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// This is where the app lives. Everything that happens,
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// happens here.
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//
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// (This'll need a rewrite some day)
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import SwiftUI
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import CryptoKit
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import SafariServices
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import KeychainSwift
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import JavaScriptCore
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struct ContentView: View {
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// Initialize everything
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@State private var username = ""
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@State private var password = ""
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@State private var notes: [Note] = []
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@State private var noteContent = ""
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@State private var selectedNote = ""
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@State private var showAddNote = false
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// User info
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@State private var noteCount: Int = 0
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@State private var sessionID: Int = 0
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@State private var maxStorage = ""
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@State private var usedStorage = ""
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// UI activators
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@State private var isEditing = false
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@State private var usingSettings = false
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@State private var isOnline = Reach().isConnectedToNetwork()
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@State private var loggingIn = true
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@State private var signingUp = false
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@State private var showErrorLabel = false
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@State private var errorMessage = ""
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@AppStorage("Username") var storedUsername: String? // Usernames are stored in UserDefaults for the sake of convenience
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let keychain = KeychainSwift()
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func login() {
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let hashHelper = HashHelper()
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// Use HashHelper to hash our password
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let hashedPassword = hashHelper.hashPassword_sha3(password)
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let SHA512key = hashHelper.hashPassword_sha512(password)
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if password.count < 8 {
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showErrorLabel = true
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errorMessage = "Password must be 8+ characters!"
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return
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}
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if loggingIn {
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// Prepare data
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let parameters = ["username": username, "password": hashedPassword, "passwordchange": "no", "newpass": "null"] // Legacy accounts should be migrated from Argon2 through the browser.
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// Create the URL request
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guard let url = URL(string: "https://notes.hectabit.org/api/login") else {
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showErrorLabel = true
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errorMessage = "Invalid URL" // Usually we'd do `guard let url = URL(string: "https://foo.bar/api/foo") else { return }`, but we will display a user-visible error for the sake of UX.
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return
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}
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JSONHelper.sendJSONRequest(url: url, parameters: parameters as [String : Any]) { result in
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switch result {
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case .success(let data):
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if let data = data {
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// Handle the response
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if let json = try? JSONSerialization.jsonObject(with: data, options: []) as? [String: Any],
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let keyValue = JSONHelper.processJSONResponse(json: json, key: "key") {
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let secretKey = keyValue
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keychain.delete("secretKey")
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keychain.set(secretKey, forKey: "secretKey")
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storedUsername = username // This will also trigger SwiftUI to change vstacks
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keychain.delete("encryptionKey")
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keychain.set(SHA512key, forKey: "encryptionKey")
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password = ""
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}
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} else {
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// Show error label
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showErrorLabel = true
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errorMessage = "Unknown error"
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}
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case .failure(let error):
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if (error as NSError).code == 401 {
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showErrorLabel = true
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errorMessage = "Invalid username or password."
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} else {
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// Show error label
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showErrorLabel = true
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errorMessage = error.localizedDescription
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}
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}
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}
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}
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if signingUp {
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// Prepare data
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let parameters = ["username": username, "password": hashedPassword] // Legacy accounts should be migrated from Argon2 through the browser.
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// Create the URL request
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guard let url = URL(string: "https://notes.hectabit.org/api/signup") else {
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showErrorLabel = true
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errorMessage = "Invalid URL" // Usually we'd do `guard let url = URL(string: "https://foo.bar/api/foo") else { return }`, but we will display a user-visible error for the sake of UX.
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return
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}
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JSONHelper.sendJSONRequest(url: url, parameters: parameters as [String : Any]) { result in
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switch result {
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case .success(let data):
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if let data = data {
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// Handle the response
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if let json = try? JSONSerialization.jsonObject(with: data, options: []) as? [String: Any],
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let keyValue = JSONHelper.processJSONResponse(json: json, key: "key") {
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let secretKey = keyValue
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keychain.delete("secretKey")
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keychain.set(secretKey, forKey: "secretKey")
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storedUsername = username // This will also trigger SwiftUI to change vstacks
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keychain.delete("encryptionKey")
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keychain.set(SHA512key, forKey: "encryptionKey")
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signingUp = false
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loggingIn = true
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password = ""
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}
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} else {
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// Show error label
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showErrorLabel = true
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errorMessage = "Unknown error"
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}
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case .failure(let error):
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if (error as NSError).code == 409 {
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// Show error label
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showErrorLabel = true
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errorMessage = "Username already taken!"
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} else {
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// Show error label
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showErrorLabel = true
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errorMessage = error.localizedDescription
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}
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}
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}
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}
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}
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var body: some View {
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if storedUsername != nil {
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// Note list
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let secretKey = keychain.get("secretKey")
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let encryptionKey = keychain.get("encryptionKey")
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VStack {
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HStack {
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// Refresh notes
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Button(action: {
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fetchNotes() // Refresh notes
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}) {
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Image(systemName: "arrow.clockwise.circle")
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.font(.title)
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}
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.disabled(isEditing) .disabled(usingSettings) .disabled(!isOnline) // Make the buttons disabled while the note editor (or settings) is open, or while offline.
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Spacer()
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// Settings
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Button(action: {
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if usingSettings == false {
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fetchUserInfo()
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usingSettings = true
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} else {
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usingSettings = false
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}
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}) {
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Image(systemName: "gear")
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.font(.title)
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}
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.disabled(isEditing) .disabled(!isOnline) // Make the buttons disabled while the note editor is open, or while offline.
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// New note
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Button(action: {
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// New note creation
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let dialog = UIAlertController(title: "New Note", message: "Enter note name", preferredStyle: .alert)
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dialog.addTextField { $0.placeholder = "My Diary" }
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let cancelAction = UIAlertAction(title: "Cancel", style: .cancel)
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let createAction = UIAlertAction(title: "Create", style: .default) { _ in
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if let noteName = dialog.textFields?.first?.text, let url = URL(string: "https://notes.hectabit.org/api/newnote") {
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let parameters = ["secretKey": "\(secretKey ?? "bum")", "noteName": "\(noteName.encrypt(password: encryptionKey ?? "this bum ain't got an encryption key!!!"))"]
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JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
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switch result {
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case .success:
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fetchNotes()
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case .failure(let error):
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print("Error sending JSON request: \(error)")
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}
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}
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}
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fetchNotes()
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}
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dialog.addAction(cancelAction);dialog.addAction(createAction)
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if let topVC = UIApplication.shared.keyWindow?.rootViewController { topVC.present(dialog, animated: true) } // We can keep using keyWindow, it's not a big deal for this specific usecase that it's deprecated
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}) {
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Image(systemName: "plus.circle")
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.font(.title)
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}
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.disabled(isEditing) .disabled(usingSettings) .disabled(!isOnline) // Make the buttons disabled while the note editor (or settings) is open, or while offline.
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}
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.padding()
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Text("Burgernotes")
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.font(.title)
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.padding()
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Group {
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if isOnline {
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if !usingSettings {
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if !isEditing {
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List {
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ForEach(notes, id: \.id) { note in
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let noteTitle = note.title.decrypt(password: encryptionKey ?? "this bum ain't got an encryption key!!!")
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Button(action: {
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fetchNoteContent(note: note)
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}) {
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Text(noteTitle)
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}
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.swipeActions(edge: .trailing, allowsFullSwipe: false) {
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Button(action: {
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guard let url = URL(string: "https://notes.hectabit.org/api/removenote") else { return }
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let parameters = ["secretKey": "\(secretKey ?? "bum")", "noteId": "\(note.id)"]
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JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
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switch result {
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case .success(_):
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print("Note deleted successfully.")
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withAnimation {
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notes.removeAll(where: { $0.id == note.id })
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}
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case .failure(let error):
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print("Error: \(error)")
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}
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}
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}) {
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Image(systemName: "trash")
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}
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.tint(.red)
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.animation(.default, value: notes)
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}
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}
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}
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.listStyle(.plain)
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Spacer()
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}
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}
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}
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if !isOnline {
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Text("You are currently offline.")
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.foregroundStyle(Color.red)
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Button(action: {
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isOnline = Reach().isConnectedToNetwork()
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if isOnline {
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fetchNotes()
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}
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}) {
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Text("Refresh connection status")
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.padding()
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.foregroundStyle(Color.blue)
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}
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Spacer()
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}
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if isEditing {
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TextEditor(text: $noteContent)
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.padding()
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HStack {
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Button(action: {
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isEditing = false
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noteContent = ""
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}) {
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Image(systemName: "chevron.left")
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.imageScale(.large)
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}
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.padding()
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Spacer()
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Button(action: {
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saveEditedNoteContent()
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}) {
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Text("Save")
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}
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.padding()
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}
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} else {
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Text(noteContent)
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.padding()
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.onTapGesture {
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isEditing = true
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}
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}
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}
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.padding()
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.onAppear {
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fetchNotes()
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}
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}
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if usingSettings {
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List {
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Section {
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Text((storedUsername ?? "No stored username :("))
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} header: {
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Text("Username")
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}
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Section {
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Text(maxStorage)
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} header: {
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Text("Maximum available storage")
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}
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Section {
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Text(usedStorage)
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} header: {
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Text("Used storage")
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}
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Button(action: {
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let dialog = UIAlertController(title: "Sign out", message: "Are you sure you want to sign out?", preferredStyle: .alert)
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// In the case of a signout:
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let signOut = UIAlertAction(title: "Yes", style: .destructive) { _ in
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fetchSessionID()
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guard let url = URL(string: "https://notes.hectabit.org/api/sessions/remove") else { return }
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let parameters = ["secretKey": "\(secretKey ?? "bum")", "sessionId": sessionID]
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JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
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switch result {
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case .success:
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keychain.delete("secretKey")
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UserDefaults.standard.removeObject(forKey: "Username") // This will also trigger SwiftUI to change vstacks
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keychain.delete("encryptionKey")
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usingSettings = false
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case .failure(let error):
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print("Failed to sign out: \(error)") // This is not supposed to happen under any circumstances unless the session was deauthorized remotely
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}
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}
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}
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let no = UIAlertAction(title: "No", style: .default)
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dialog.addAction(signOut);dialog.addAction(no)
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if let topVC = UIApplication.shared.keyWindow?.rootViewController { topVC.present(dialog, animated: true) } // We can keep using keyWindow, it's not a big deal for this specific usecase that it's deprecated
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}) {
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Text("Sign out")
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.foregroundStyle(Color.red) // Set the text color to red
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}
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}
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}
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} else {
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// Login screen
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VStack {
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Image("org.hectabit.burgernotes")
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.resizable()
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.frame(width: 100, height: 100)
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.padding(.bottom, 16)
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Text("Burgernotes")
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.font(.title)
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.fontWeight(.bold)
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Text("Secure, encrypted notes.")
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.padding(.bottom, 16)
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VStack(spacing: 16) {
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TextField("Username", text: $username)
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.textFieldStyle(RoundedBorderTextFieldStyle())
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.autocapitalization(.none)
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SecureField("Password", text: $password)
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.textFieldStyle(RoundedBorderTextFieldStyle())
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.autocapitalization(.none)
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Button(action: login) {
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Text(loggingIn ? "Sign In" : (signingUp ? "Sign Up" : ""))
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.foregroundColor(.white)
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.font(.headline)
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.frame(maxWidth: .infinity)
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.padding()
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.background(Color.accentColor)
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.cornerRadius(8)
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}
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HStack {
|
||
|
|
Button(action: {
|
||
|
|
if signingUp {
|
||
|
|
signingUp = false
|
||
|
|
loggingIn = true
|
||
|
|
} else if loggingIn {
|
||
|
|
loggingIn = false
|
||
|
|
signingUp = true
|
||
|
|
}
|
||
|
|
}) {
|
||
|
|
Text(loggingIn ? "Sign up instead" : (signingUp ? "Sign in instead" : ""))
|
||
|
|
.font(.body)
|
||
|
|
.foregroundColor(.blue)
|
||
|
|
}
|
||
|
|
Text("|")
|
||
|
|
.font(.body)
|
||
|
|
.foregroundColor(.blue)
|
||
|
|
Button(action: {
|
||
|
|
if let url = URL(string: "https://notes.hectabit.org/privacy") {
|
||
|
|
let safariViewController = SFSafariViewController(url: url)
|
||
|
|
UIApplication.shared.windows.first?.rootViewController?.present(safariViewController, animated: true, completion: nil)
|
||
|
|
}
|
||
|
|
}) {
|
||
|
|
Text("Privacy Policy")
|
||
|
|
.font(.body)
|
||
|
|
.foregroundColor(.blue)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Text(errorMessage)
|
||
|
|
.foregroundColor(.red)
|
||
|
|
.opacity(showErrorLabel ? 1 : 0)
|
||
|
|
.padding(.top, 8)
|
||
|
|
}
|
||
|
|
.padding(.horizontal, 32)
|
||
|
|
.padding(.bottom, 16)
|
||
|
|
}
|
||
|
|
.padding()
|
||
|
|
.background(Color(.systemBackground))
|
||
|
|
.edgesIgnoringSafeArea(.all)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fetch notes
|
||
|
|
private func fetchNotes() {
|
||
|
|
let secretKey = keychain.get("secretKey")
|
||
|
|
guard let url = URL(string: "https://notes.hectabit.org/api/listnotes") else { return }
|
||
|
|
let parameters = ["secretKey": "\(secretKey ?? "bum")"]
|
||
|
|
|
||
|
|
// Call a JSON request
|
||
|
|
JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
|
||
|
|
switch result {
|
||
|
|
case .success(let data):
|
||
|
|
if let data = data {
|
||
|
|
// Decode the received notes
|
||
|
|
if let remoteNotes = try? JSONDecoder().decode([Note].self, from: data) {
|
||
|
|
DispatchQueue.main.async {
|
||
|
|
// Remove notes that are not present remotely
|
||
|
|
notes = notes.filter { note in
|
||
|
|
remoteNotes.contains { $0.id == note.id }
|
||
|
|
}
|
||
|
|
|
||
|
|
// Filter new notes from existing notes
|
||
|
|
let newNotes = remoteNotes.filter { newNote in
|
||
|
|
!notes.contains { $0.id == newNote.id }
|
||
|
|
}
|
||
|
|
|
||
|
|
// Append the new notes to the existing array
|
||
|
|
notes.append(contentsOf: newNotes)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
case .failure(let error):
|
||
|
|
print("Error: \(error)") // Aww shit!
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private func fetchNoteContent(note: Note) {
|
||
|
|
// We need to get the secret and encryptionkeys again here
|
||
|
|
let secretKey = keychain.get("secretKey")
|
||
|
|
let encryptionKey = keychain.get("encryptionKey")
|
||
|
|
guard let url = URL(string: "https://notes.hectabit.org/api/readnote") else { return }
|
||
|
|
let parameters = ["secretKey": "\(secretKey ?? "bum")", "noteId": "\(note.id)"]
|
||
|
|
|
||
|
|
// Call a JSON request
|
||
|
|
JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
|
||
|
|
switch result {
|
||
|
|
case .success(let data):
|
||
|
|
guard let data = data else {
|
||
|
|
print("No data received")
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
do {
|
||
|
|
let json = try JSONSerialization.jsonObject(with: data, options: [])
|
||
|
|
if let responseDict = json as? [String: Any],
|
||
|
|
let encryptedContent = responseDict["content"] as? String {
|
||
|
|
let decryptedContent = encryptedContent.decrypt(password: encryptionKey ?? "this bum ain't got an encryption key!!!")
|
||
|
|
DispatchQueue.main.async {
|
||
|
|
// Set up & open the text editor
|
||
|
|
noteContent = decryptedContent
|
||
|
|
selectedNote = "\(note.id)"
|
||
|
|
isEditing = true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} catch {
|
||
|
|
print("Error decoding JSON response 🙁: \(error)")
|
||
|
|
}
|
||
|
|
|
||
|
|
case .failure(let error):
|
||
|
|
print("Error: \(error)") // Aww shit!
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fetch user info (for the settings page)
|
||
|
|
private func fetchUserInfo() {
|
||
|
|
let secretKey = keychain.get("secretKey")
|
||
|
|
guard let url = URL(string: "https://notes.hectabit.org/api/userinfo") else { return }
|
||
|
|
let parameters = ["secretKey": "\(secretKey ?? "bum")"]
|
||
|
|
|
||
|
|
// Call a JSON request
|
||
|
|
JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
|
||
|
|
switch result {
|
||
|
|
case .success(let data):
|
||
|
|
if let data = data {
|
||
|
|
do {
|
||
|
|
let json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any]
|
||
|
|
fetchSessionID()
|
||
|
|
DispatchQueue.main.async {
|
||
|
|
// Update the States ('MURICA!!! 🇺🇸🇺🇸🦅) to match that of the API response
|
||
|
|
noteCount = json?["notecount"] as? Int ?? 0
|
||
|
|
maxStorage = SizeHelper().humanReadable(json?["storagemax"] as? String ?? "") // Why is this a string?
|
||
|
|
usedStorage = SizeHelper().humanReadable(json?["storageused"] as? Int ?? 0)
|
||
|
|
}
|
||
|
|
} catch {
|
||
|
|
print("Error decoding JSON response 🙁: \(error)")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
case .failure(let error):
|
||
|
|
print("Error: \(error)") // Aww shit!
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fetch session ID (for logging out)
|
||
|
|
private func fetchSessionID() {
|
||
|
|
let secretKey = keychain.get("secretKey")
|
||
|
|
guard let url = URL(string: "https://notes.hectabit.org/api/sessions/list") else { return }
|
||
|
|
let parameters = ["secretKey": "\(secretKey ?? "bum")"]
|
||
|
|
|
||
|
|
// Call a JSON request
|
||
|
|
JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
|
||
|
|
switch result {
|
||
|
|
// In the case of a successful JSON response
|
||
|
|
case .success(let data):
|
||
|
|
if let data = data {
|
||
|
|
do {
|
||
|
|
let json = try JSONSerialization.jsonObject(with: data, options: []) as? [[String: Any]]
|
||
|
|
// Search for an entry with "thisSession" set to true
|
||
|
|
if let session = json?.first(where: { $0["thisSession"] as? Bool == true }) {
|
||
|
|
DispatchQueue.main.async {
|
||
|
|
// Set our sessionID state to "id" from this response
|
||
|
|
sessionID = session["id"] as? Int ?? 0
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// HOW was this called when the user was logged off? (I mean, this will be used for session authorization)
|
||
|
|
print("Is this guy even logged in?")
|
||
|
|
}
|
||
|
|
} catch {
|
||
|
|
print("Error decoding JSON response 🙁: \(error)")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// In the case of a failed json response
|
||
|
|
case .failure(let error):
|
||
|
|
print("Error: \(error)") // Aww shit!
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private func saveEditedNoteContent() {
|
||
|
|
// We need to get the secret and encryptionkeys again here
|
||
|
|
let secretKey = keychain.get("secretKey")
|
||
|
|
let encryptionKey = keychain.get("encryptionKey")
|
||
|
|
guard let url = URL(string: "https://notes.hectabit.org/api/editnote") else { return }
|
||
|
|
|
||
|
|
let formattedContent = noteContent.replacingOccurrences(of: "\n", with: "NEWLINEHERETHISISHACKY") // Hacky solution to a real problem
|
||
|
|
let encryptedContent = formattedContent.encrypt(password: encryptionKey ?? "this bum ain't got an encryption key!!!")
|
||
|
|
|
||
|
|
let parameters = ["secretKey": "\(secretKey ?? "bum")", "noteId": "\(selectedNote)", "content": encryptedContent]
|
||
|
|
|
||
|
|
// Call a JSON request
|
||
|
|
JSONHelper.sendJSONRequest(url: url, parameters: parameters) { result in
|
||
|
|
switch result {
|
||
|
|
case .success(_):
|
||
|
|
print("Note edited and saved successfully")
|
||
|
|
|
||
|
|
// Close the text editor
|
||
|
|
DispatchQueue.main.async {
|
||
|
|
isEditing = false
|
||
|
|
noteContent = ""
|
||
|
|
}
|
||
|
|
|
||
|
|
case .failure(let error):
|
||
|
|
print("Error: \(error)") // Aww shit!
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
struct Note: Codable, Equatable {
|
||
|
|
let id: Int
|
||
|
|
let title: String
|
||
|
|
}
|
||
|
|
|
||
|
|
struct ContentView_Previews: PreviewProvider {
|
||
|
|
static var previews: some View {
|
||
|
|
ForEach(ColorScheme.allCases, id: \.self, content: ContentView().preferredColorScheme)
|
||
|
|
}
|
||
|
|
}
|