MESSENGER-2762 Initial Merge

bwi/Wellknown/Wellknown+Bwi.swift

@@ -0,0 +1,73 @@
+//
+/*
+ * Copyright (c) 2021 BWI GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Foundation
+
+public extension MXWellKnown {
+    @objc func backupRequired() -> Bool {
+    
+        do {
+            let security = try WellknownSecurity(dict: self.jsonDictionary()["io.element.e2ee"] as! [String : Any])
+            return security.backupRequired
+        }
+        catch {
+            return true
+        }
+    }
+    
+    @objc func backupMethods() -> Array<String>? {
+    
+        do {
+            let security = try WellknownSecurity(dict: self.jsonDictionary()["io.element.e2ee"] as! [String : Any])
+            return security.backupMethods
+        }
+        catch {
+            return ["passphrase"]
+        }
+    }
+    
+    @objc func isBackupMethodKeySupported() -> Bool {
+        return self.backupMethods()?.contains("key") == true
+    }
+    
+    @objc func isBackupMethodPassphraseSupported() -> Bool {
+        return self.backupMethods()?.contains("passphrase") != nil
+    }
+    
+    @objc func preSharingMode() -> MXKKeyPreSharingStrategy {
+        do {
+            let security = try WellknownSecurity(dict: self.jsonDictionary()["io.element.e2ee"] as! [String : Any])
+            
+            guard let preSharingMode = security.preSharingMode else {
+                return .whenTyping
+            }
+            
+            if preSharingMode == "on_room_opening" {
+                return .whenEnteringRoom
+            } else if preSharingMode == "on_typing" {
+                return .whenTyping
+            } else {
+                return .none
+            }
+        }
+        catch {
+            return .whenTyping
+        }
+        
+        return .whenTyping
+    }
+}

bwi/Wellknown/WellknownHomeServer.swift

@@ -0,0 +1,34 @@
+//
+/*
+ * Copyright (c) 2021 BWI GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Foundation
+
+struct WellknownHomeServer {
+    let baseUrl: String
+    
+    init(dict: [String: Any]) throws {
+        let jsonData = try JSONSerialization.data(withJSONObject: dict, options: [])
+        let decoder = JSONDecoder()
+        self = try decoder.decode(Self.self, from: jsonData)
+    }
+}
+
+extension WellknownHomeServer: Decodable {
+    enum CodingKeys: String, CodingKey {
+        case baseUrl = "base_url"
+    }
+}

bwi/Wellknown/WellknownSecurity.swift

@@ -0,0 +1,38 @@
+//
+/*
+ * Copyright (c) 2021 BWI GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Foundation
+
+struct WellknownSecurity {
+    let backupRequired: Bool
+    let backupMethods: Array<String>?
+    let preSharingMode: String?
+    
+    init(dict: [String: Any]) throws {
+        let jsonData = try JSONSerialization.data(withJSONObject: dict, options: [])
+        let decoder = JSONDecoder()
+        self = try decoder.decode(Self.self, from: jsonData)
+    }
+}
+
+extension WellknownSecurity: Decodable {
+    enum CodingKeys: String, CodingKey {
+        case backupRequired = "secure_backup_required"
+        case backupMethods = "secure_backup_setup_methods"
+        case preSharingMode = "outbound_keys_pre_sharing_mode"
+    }
+}