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Feature | Encrypt sensitive data within EncryptedSharedPreferences (#1197)

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This commit is contained in:
Evgenii Kozlov 2020-12-21 11:24:54 +03:00 • committed by GitHub
parent 826f001dd7
commit 5bcc165fcd
Signed by: github
GPG key ID: 4AEE18F83AFDEB23
6 changed files with 74 additions and 15 deletions
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1
persistence/build.gradle
View file

@ -23,7 +23,6 @@ android {
}
dependencies {
implementation project(':data')
def applicationDependencies = rootProject.ext.mainApplication

1
persistence/src/main/java/com/anytypeio/anytype/persistence/db/AnytypeDatabase.kt
View file

@ -25,5 +25,4 @@ abstract class AnytypeDatabase : RoomDatabase() {
Config.DATABASE_NAME
).build()
}
}

55
persistence/src/main/java/com/anytypeio/anytype/persistence/repo/DefaultAuthCache.kt
View file

@ -9,7 +9,8 @@ import com.anytypeio.anytype.persistence.mapper.toTable
class DefaultAuthCache(
private val db: AnytypeDatabase,
private val prefs: SharedPreferences
private val defaultPrefs: SharedPreferences,
private val encryptedPrefs: SharedPreferences
) : AuthCache {
override suspend fun saveAccount(account: AccountEntity) {
@ -25,30 +26,66 @@ class DefaultAuthCache(
?: throw IllegalStateException("Account with the following id not found: $id")
}
/**
* N.B. Migrating sensitive data from default to encrypted prefs.
*/
override suspend fun getCurrentAccountId(): String {
val id: String? = prefs.getString(CURRENT_ACCOUNT_ID_KEY, null)
return id ?: throw IllegalStateException("Current account not set")
val nonEncryptedId = defaultPrefs.getString(CURRENT_ACCOUNT_ID_KEY, null)
return if (nonEncryptedId != null) {
encryptedPrefs.edit().putString(CURRENT_ACCOUNT_ID_KEY, nonEncryptedId).apply()
defaultPrefs.edit().remove(CURRENT_ACCOUNT_ID_KEY).apply()
nonEncryptedId
} else {
val encryptedId = encryptedPrefs.getString(CURRENT_ACCOUNT_ID_KEY, null)
encryptedId ?: throw IllegalStateException("Current account not set")
}
}
/**
* N.B. Migrating sensitive data from default to encrypted prefs.
*/
override suspend fun saveMnemonic(mnemonic: String) {
prefs.edit().putString(MNEMONIC_KEY, mnemonic).apply()
defaultPrefs.edit().remove(MNEMONIC_KEY).apply()
encryptedPrefs.edit().putString(MNEMONIC_KEY, mnemonic).apply()
}
/**
* N.B. Migrating sensitive data from default to encrypted prefs.
*/
override suspend fun getMnemonic(): String {
return prefs.getString(MNEMONIC_KEY, null)
?: throw IllegalStateException("Mnemonic is missing.")
val nonEncryptedMnemonic = defaultPrefs.getString(MNEMONIC_KEY, null)
return if (nonEncryptedMnemonic != null) {
encryptedPrefs.edit().putString(MNEMONIC_KEY, nonEncryptedMnemonic).apply()
defaultPrefs.edit().remove(MNEMONIC_KEY).apply()
nonEncryptedMnemonic
} else {
val encryptedMnemonic = encryptedPrefs.getString(MNEMONIC_KEY, null)
encryptedMnemonic ?: throw IllegalStateException("Mnemonic is missing")
}
}
override suspend fun logout() {
db.accountDao().clear()
prefs.edit().putString(MNEMONIC_KEY, null).apply()
defaultPrefs
.edit()
.remove(MNEMONIC_KEY)
.remove(CURRENT_ACCOUNT_ID_KEY)
.apply()
encryptedPrefs
.edit()
.remove(MNEMONIC_KEY)
.remove(CURRENT_ACCOUNT_ID_KEY)
.apply()
}
override suspend fun getAccounts() = db.accountDao().getAccounts().map { it.toEntity() }
/**
* N.B. Migrating sensitive data from default to encrypted prefs.
*/
override suspend fun setCurrentAccount(id: String) {
prefs.edit().putString(CURRENT_ACCOUNT_ID_KEY, id).apply()
defaultPrefs.edit().remove(CURRENT_ACCOUNT_ID_KEY).apply()
encryptedPrefs.edit().putString(CURRENT_ACCOUNT_ID_KEY, id).apply()
}
companion object {