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Refactor: Testable Keychain and Identity Manager (#584)

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* Make static functions instance functions to be testable

* Injectable KeychainManager + Mock + updated tests

* Remove `pendingActions` from identity manager (dead code)

* Remove `getHandshakeState` from identity manager (dead code)

* Remove `getAllSocialIdentities` from identity manager (dead code)

* Remove `getCryptographicIdentity` from identity manager (dead code)

* Remove `resolveIdentity` from identity manager (dead code)

* Identity Manager: minor clean up

* Put Identity Manager behind a protocol

* Remove Keychain and Identity Manager singletons

* Tests: include MockKeychain/MockIdentityManager in project; init identityManager in CommandProcessorTests

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
This commit is contained in:
Islam
2025-09-12 14:37:34 +02:00
committed by GitHub
co-authored by jack
parent bb3d99bdca
commit 920dc31795
22 changed files with 445 additions and 234 deletions
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bitchat/Noise/NoiseProtocol.swift
+15 -7
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@@ -490,6 +490,7 @@ final class NoiseSymmetricState {
final class NoiseHandshakeState {
private let role: NoiseRole
private let pattern: NoisePattern
private let keychain: KeychainManagerProtocol
private var symmetricState: NoiseSymmetricState
// Keys
@@ -505,9 +506,16 @@ final class NoiseHandshakeState {
private var messagePatterns: [[NoiseMessagePattern]] = []
private var currentPattern = 0
init(role: NoiseRole, pattern: NoisePattern, localStaticKey: Curve25519.KeyAgreement.PrivateKey? = nil, remoteStaticKey: Curve25519.KeyAgreement.PublicKey? = nil) {
init(
role: NoiseRole,
pattern: NoisePattern,
keychain: KeychainManagerProtocol,
localStaticKey: Curve25519.KeyAgreement.PrivateKey? = nil,
remoteStaticKey: Curve25519.KeyAgreement.PublicKey? = nil
) {
self.role = role
self.pattern = pattern
self.keychain = keychain
// Initialize static keys
if let localKey = localStaticKey {
@@ -578,7 +586,7 @@ final class NoiseHandshakeState {
var sharedData = shared.withUnsafeBytes { Data($0) }
symmetricState.mixKey(sharedData)
// Clear sensitive shared secret
KeychainManager.secureClear(&sharedData)
keychain.secureClear(&sharedData)
case .es:
// DH(ephemeral, static) - direction depends on role
@@ -626,7 +634,7 @@ final class NoiseHandshakeState {
var sharedData = shared.withUnsafeBytes { Data($0) }
symmetricState.mixKey(sharedData)
// Clear sensitive shared secret
KeychainManager.secureClear(&sharedData)
keychain.secureClear(&sharedData)
}
}
@@ -714,7 +722,7 @@ final class NoiseHandshakeState {
var sharedData = shared.withUnsafeBytes { Data($0) }
symmetricState.mixKey(sharedData)
// Clear sensitive shared secret
KeychainManager.secureClear(&sharedData)
keychain.secureClear(&sharedData)
} else {
guard let localStatic = localStaticPrivate,
let remoteEphemeral = remoteEphemeralPublic else {
@@ -724,7 +732,7 @@ final class NoiseHandshakeState {
var sharedData = shared.withUnsafeBytes { Data($0) }
symmetricState.mixKey(sharedData)
// Clear sensitive shared secret
KeychainManager.secureClear(&sharedData)
keychain.secureClear(&sharedData)
}
case .se:
@@ -737,7 +745,7 @@ final class NoiseHandshakeState {
var sharedData = shared.withUnsafeBytes { Data($0) }
symmetricState.mixKey(sharedData)
// Clear sensitive shared secret
KeychainManager.secureClear(&sharedData)
keychain.secureClear(&sharedData)
} else {
guard let localEphemeral = localEphemeralPrivate,
let remoteStatic = remoteStaticPublic else {
@@ -747,7 +755,7 @@ final class NoiseHandshakeState {
var sharedData = shared.withUnsafeBytes { Data($0) }
symmetricState.mixKey(sharedData)
// Clear sensitive shared secret
KeychainManager.secureClear(&sharedData)
keychain.secureClear(&sharedData)
}
case .ss: