mirror of
https://github.com/simplex-chat/simplex-chat.git
synced 2026-04-11 03:35:55 +00:00
748572ace9
* ui: types and stubs to encrypt local files * ios: encrypt automatically received images in local storage * encrypt sent images, marked to be received via NSE * ios: encrypt sent and received local voice files * encrypt sent and received local files * fix NSE * remove comment * decrypt files in background thread
65 lines
2.4 KiB
Swift
65 lines
2.4 KiB
Swift
//
|
|
// CryptoFile.swift
|
|
// SimpleX (iOS)
|
|
//
|
|
// Created by Evgeny on 05/09/2023.
|
|
// Copyright © 2023 SimpleX Chat. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
enum WriteFileResult: Decodable {
|
|
case result(cryptoArgs: CryptoFileArgs)
|
|
case error(writeError: String)
|
|
}
|
|
|
|
public func writeCryptoFile(path: String, data: Data) throws -> CryptoFileArgs {
|
|
let ptr: UnsafeMutableRawPointer = malloc(data.count)
|
|
memcpy(ptr, (data as NSData).bytes, data.count)
|
|
var cPath = path.cString(using: .utf8)!
|
|
let cjson = chat_write_file(&cPath, ptr, Int32(data.count))!
|
|
let d = fromCString(cjson).data(using: .utf8)!
|
|
switch try jsonDecoder.decode(WriteFileResult.self, from: d) {
|
|
case let .result(cfArgs): return cfArgs
|
|
case let .error(err): throw RuntimeError(err)
|
|
}
|
|
}
|
|
|
|
enum ReadFileResult: Decodable {
|
|
case result(fileSize: Int)
|
|
case error(readError: String)
|
|
}
|
|
|
|
public func readCryptoFile(path: String, cryptoArgs: CryptoFileArgs) throws -> Data {
|
|
var cPath = path.cString(using: .utf8)!
|
|
var cKey = cryptoArgs.fileKey.cString(using: .utf8)!
|
|
var cNonce = cryptoArgs.fileNonce.cString(using: .utf8)!
|
|
let r = chat_read_file(&cPath, &cKey, &cNonce)!
|
|
let d = String.init(cString: r).data(using: .utf8)!
|
|
switch try jsonDecoder.decode(ReadFileResult.self, from: d) {
|
|
case let .error(err): throw RuntimeError(err)
|
|
case let .result(size): return Data(bytes: r.advanced(by: d.count + 1), count: size)
|
|
}
|
|
}
|
|
|
|
public func encryptCryptoFile(fromPath: String, toPath: String) throws -> CryptoFileArgs {
|
|
var cFromPath = fromPath.cString(using: .utf8)!
|
|
var cToPath = toPath.cString(using: .utf8)!
|
|
let cjson = chat_encrypt_file(&cFromPath, &cToPath)!
|
|
let d = fromCString(cjson).data(using: .utf8)!
|
|
switch try jsonDecoder.decode(WriteFileResult.self, from: d) {
|
|
case let .result(cfArgs): return cfArgs
|
|
case let .error(err): throw RuntimeError(err)
|
|
}
|
|
}
|
|
|
|
public func decryptCryptoFile(fromPath: String, cryptoArgs: CryptoFileArgs, toPath: String) throws {
|
|
var cFromPath = fromPath.cString(using: .utf8)!
|
|
var cKey = cryptoArgs.fileKey.cString(using: .utf8)!
|
|
var cNonce = cryptoArgs.fileNonce.cString(using: .utf8)!
|
|
var cToPath = toPath.cString(using: .utf8)!
|
|
let cErr = chat_decrypt_file(&cFromPath, &cKey, &cNonce, &cToPath)!
|
|
let err = fromCString(cErr)
|
|
if err != "" { throw RuntimeError(err) }
|
|
}
|