GLEGram 12.5 — Initial public release

Based on Swiftgram 12.5 (Telegram iOS 12.5).
All GLEGram features ported and organized in GLEGram/ folder.

Features: Ghost Mode, Saved Deleted Messages, Content Protection Bypass,
Font Replacement, Fake Profile, Chat Export, Plugin System, and more.

See CHANGELOG_12.5.md for full details.

GLEGram/DoubleBottom/Sources/DoubleBottomPasscodeStore.swift

@@ -0,0 +1,116 @@
+// MARK: Swiftgram - Keychain storage for hidden-account passcodes (Double Bottom)
+import Foundation
+import Security
+
+private let serviceName = "SwiftgramDoubleBottom"
+
+/// Key for the single "secret" passcode (second password). When user unlocks with this, only one account is shown.
+private let secretPasscodeAccountKey = "secret"
+
+public enum DoubleBottomPasscodeStore {
+    // MARK: - Secret passcode (second password -> show only 1 account)
+
+    public static func setSecretPasscode(_ passcode: String) {
+        let data = passcode.data(using: .utf8)!
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: serviceName,
+            kSecAttrAccount as String: secretPasscodeAccountKey
+        ]
+        var addQuery = query
+        addQuery[kSecValueData as String] = data
+        var status = SecItemAdd(addQuery as CFDictionary, nil)
+        if status == errSecDuplicateItem {
+            SecItemDelete(query as CFDictionary)
+            status = SecItemAdd(addQuery as CFDictionary, nil)
+        }
+    }
+
+    public static func secretPasscodeMatches(_ passcode: String) -> Bool {
+        guard let stored = secretPasscode() else { return false }
+        return stored == passcode
+    }
+
+    public static func hasSecretPasscode() -> Bool {
+        return secretPasscode() != nil
+    }
+
+    public static func removeSecretPasscode() {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: serviceName,
+            kSecAttrAccount as String: secretPasscodeAccountKey
+        ]
+        SecItemDelete(query as CFDictionary)
+    }
+
+    private static func secretPasscode() -> String? {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: serviceName,
+            kSecAttrAccount as String: secretPasscodeAccountKey,
+            kSecReturnData as String: true,
+            kSecMatchLimit as String: kSecMatchLimitOne
+        ]
+        var result: AnyObject?
+        let status = SecItemCopyMatching(query as CFDictionary, &result)
+        guard status == errSecSuccess, let data = result as? Data, let string = String(data: data, encoding: .utf8) else {
+            return nil
+        }
+        return string
+    }
+
+    // MARK: - Per-account passcodes (hidden accounts)
+
+    public static func setPasscode(_ passcode: String, forAccountId accountId: Int64) {
+        let account = "\(accountId)"
+        let data = passcode.data(using: .utf8)!
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: serviceName,
+            kSecAttrAccount as String: account
+        ]
+        var addQuery = query
+        addQuery[kSecValueData as String] = data
+        var status = SecItemAdd(addQuery as CFDictionary, nil)
+        if status == errSecDuplicateItem {
+            SecItemDelete(query as CFDictionary)
+            status = SecItemAdd(addQuery as CFDictionary, nil)
+        }
+    }
+
+    public static func passcode(forAccountId accountId: Int64) -> String? {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: serviceName,
+            kSecAttrAccount as String: "\(accountId)",
+            kSecReturnData as String: true,
+            kSecMatchLimit as String: kSecMatchLimitOne
+        ]
+        var result: AnyObject?
+        let status = SecItemCopyMatching(query as CFDictionary, &result)
+        guard status == errSecSuccess, let data = result as? Data, let string = String(data: data, encoding: .utf8) else {
+            return nil
+        }
+        return string
+    }
+
+    public static func removePasscode(forAccountId accountId: Int64) {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: serviceName,
+            kSecAttrAccount as String: "\(accountId)"
+        ]
+        SecItemDelete(query as CFDictionary)
+    }
+
+    /// Returns the account id whose passcode matches the given value, or nil.
+    public static func accountId(matchingPasscode passcode: String, candidateIds: [Int64]) -> Int64? {
+        for id in candidateIds {
+            if Self.passcode(forAccountId: id) == passcode {
+                return id
+            }
+        }
+        return nil
+    }
+}

GLEGram/DoubleBottom/Sources/DoubleBottomViewingSecretStore.swift

@@ -0,0 +1,14 @@
+// MARK: Swiftgram - Tracks whether the user unlocked with the "secret" passcode (Double Bottom)
+import Foundation
+
+public enum DoubleBottomViewingSecretStore {
+    private static let key = "DoubleBottomViewingWithSecretPasscode"
+
+    public static func isViewingWithSecretPasscode() -> Bool {
+        return UserDefaults.standard.bool(forKey: key)
+    }
+
+    public static func setViewingWithSecretPasscode(_ value: Bool) {
+        UserDefaults.standard.set(value, forKey: key)
+    }
+}

GLEGram/DoubleBottom/Sources/SystemNGSettings.swift

@@ -0,0 +1,38 @@
+// MARK: - GLEGram Double Bottom
+// From Nicegram NGData/Sources/NGSettings.swift - only SystemNGSettings for Double Bottom
+import Foundation
+
+public class SystemNGSettings {
+    let UD = UserDefaults.standard
+
+    public init() {}
+
+    public var dbReset: Bool {
+        get {
+            return UD.bool(forKey: "ng_db_reset")
+        }
+        set {
+            UD.set(newValue, forKey: "ng_db_reset")
+        }
+    }
+
+    public var isDoubleBottomOn: Bool {
+        get {
+            return UD.bool(forKey: "isDoubleBottomOn")
+        }
+        set {
+            UD.set(newValue, forKey: "isDoubleBottomOn")
+        }
+    }
+
+    public var inDoubleBottom: Bool {
+        get {
+            return UD.bool(forKey: "inDoubleBottom")
+        }
+        set {
+            UD.set(newValue, forKey: "inDoubleBottom")
+        }
+    }
+}
+
+public var VarSystemNGSettings = SystemNGSettings()