mirror of
https://github.com/greenart7c3/Amber.git
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greenart7c3
3acbc08f4b
- Introduce `signerCache` using a `WeakReference` and a `Mutex` to safely cache the `NostrSignerInternal` instance. - Update `getSigner()` to check the cache before retrieving the encrypted key and creating a new signer. - Add `clearSignerCache()` to explicitly clear the cache on logout.
620 lines
22 KiB
Kotlin
620 lines
22 KiB
Kotlin
package com.greenart7c3.nostrsigner
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import android.annotation.SuppressLint
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import android.content.Context
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import android.content.SharedPreferences
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import android.util.Log
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import androidx.compose.runtime.Immutable
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import androidx.core.content.edit
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import com.greenart7c3.nostrsigner.models.Account
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import com.greenart7c3.nostrsigner.models.AmberSettings
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import com.greenart7c3.nostrsigner.models.defaultAppRelays
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import com.greenart7c3.nostrsigner.models.defaultIndexerRelays
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import com.greenart7c3.nostrsigner.okhttp.HttpClientManager
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import com.greenart7c3.nostrsigner.ui.parseBiometricsTimeType
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import com.vitorpamplona.quartz.nip01Core.core.hexToByteArray
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import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer
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import com.vitorpamplona.quartz.nip19Bech32.toNpub
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import com.vitorpamplona.quartz.utils.cache.LargeCache
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import java.io.File
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import kotlin.collections.component1
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import kotlin.collections.component2
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import kotlin.collections.iterator
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.runBlocking
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import kotlinx.coroutines.withContext
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private enum class PrefKeys(val key: String) {
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NOSTR_PRIVKEY("nostr_privkey"),
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NOSTR_PUBKEY("nostr_pubkey"),
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ACCOUNT_NAME("account_name"),
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SIGN_POLICY("default_sign_policy"),
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SEED_WORDS("seed_words"),
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PROFILE_URL("profile_url"),
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LAST_METADATA_UPDATE("last_metadata_update"),
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LAST_CHECK("last_check"),
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DID_BACKUP("did_backup"),
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}
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private enum class SettingsKeys(val key: String) {
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DEFAULT_RELAYS("default_relays"),
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DEFAULT_PROFILE_RELAYS("default_profile_relays"),
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LAST_BIOMETRICS_TIME("last_biometrics_time"),
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USE_AUTH("use_auth"),
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BIOMETRICS_TYPE("biometrics_type"),
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USE_PIN("use_pin"),
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RATIONALE("rationale"),
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CURRENT_ACCOUNT("currently_logged_in_account"),
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PIN("pin"),
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SAVED_ACCOUNTS("all_saved_accounts"),
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USE_PROXY("use_proxy"),
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PROXY_PORT("proxy_port"),
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BATERRY_OPTIMIZATION("battery_optimization"),
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KILL_SWITCH("kill_switch"),
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LANGUAGE_PREFS("languagePreferences"),
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}
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@Immutable
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data class AccountInfo(
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val npub: String,
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val hasPrivKey: Boolean,
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)
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object LocalPreferences {
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private const val COMMA = ","
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private var currentAccount: String? = null
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private var accountCache = LargeCache<String, Account>()
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fun allLegacySavedAccounts(context: Context): List<AccountInfo> = legacySavedAccounts(context).map { npub ->
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AccountInfo(
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npub,
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true,
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)
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}.toSet().toList()
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fun allSavedAccounts(context: Context): List<AccountInfo> = savedAccounts(context).map { npub ->
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AccountInfo(
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npub,
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true,
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)
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}.toSet().toList()
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fun currentAccount(context: Context): String? {
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if (currentAccount == null) {
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Log.d(Amber.TAG, "currentAccount is null fetching from shared preferences")
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currentAccount = sharedPrefs(context).getString(SettingsKeys.CURRENT_ACCOUNT.key, null)
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if (currentAccount == null) {
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Log.d(Amber.TAG, "currentAccount is null fetching from all saved accounts")
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currentAccount = allSavedAccounts(context).firstOrNull()?.npub
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}
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}
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return currentAccount
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}
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private fun updateCurrentAccount(context: Context, npub: String) {
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if (currentAccount != npub) {
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currentAccount = npub
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sharedPrefs(context).edit {
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apply {
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putString(SettingsKeys.CURRENT_ACCOUNT.key, npub)
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}
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}
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}
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}
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fun shouldShowRationale(context: Context): Boolean? {
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if (!sharedPrefs(context).contains(SettingsKeys.RATIONALE.key)) {
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return null
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}
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return sharedPrefs(context).getBoolean(SettingsKeys.RATIONALE.key, true)
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}
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fun updateShouldShowRationale(context: Context, value: Boolean) {
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sharedPrefs(context).edit {
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apply {
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putBoolean(SettingsKeys.RATIONALE.key, value)
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}
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}
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}
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fun saveSettingsToEncryptedStorage(settings: AmberSettings) {
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val context = Amber.instance
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sharedPrefs(context).edit {
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apply {
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putStringSet(SettingsKeys.DEFAULT_RELAYS.key, settings.defaultRelays.map { it.url }.toSet())
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putStringSet(SettingsKeys.DEFAULT_PROFILE_RELAYS.key, settings.defaultProfileRelays.map { it.url }.toSet())
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putLong(SettingsKeys.LAST_BIOMETRICS_TIME.key, settings.lastBiometricsTime)
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putBoolean(SettingsKeys.USE_AUTH.key, settings.useAuth)
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putInt(SettingsKeys.BIOMETRICS_TYPE.key, settings.biometricsTimeType.screenCode)
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putBoolean(SettingsKeys.USE_PIN.key, settings.usePin)
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putBoolean(SettingsKeys.USE_PROXY.key, settings.useProxy)
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putInt(SettingsKeys.PROXY_PORT.key, settings.proxyPort)
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putBoolean(SettingsKeys.KILL_SWITCH.key, settings.killSwitch.value)
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putString(SettingsKeys.LANGUAGE_PREFS.key, settings.language)
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}
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}
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}
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fun getBatteryOptimization(context: Context): Boolean = sharedPrefs(context).getBoolean(SettingsKeys.BATERRY_OPTIMIZATION.key, false)
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fun updateBatteryOptimization(context: Context, value: Boolean) {
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sharedPrefs(context).edit {
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apply {
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putBoolean(SettingsKeys.BATERRY_OPTIMIZATION.key, value)
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}
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}
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}
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fun getLastCheck(context: Context, npub: String): Long = sharedPrefs(context, npub).getLong(PrefKeys.LAST_CHECK.key, 0)
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fun setLastCheck(context: Context, npub: String, time: Long) {
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sharedPrefs(context, npub).edit {
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apply {
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putLong(PrefKeys.LAST_CHECK.key, time)
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}
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}
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}
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fun getLastMetadataUpdate(context: Context, npub: String): Long = sharedPrefs(context, npub).getLong(PrefKeys.LAST_METADATA_UPDATE.key, 0)
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fun setLastMetadataUpdate(context: Context, npub: String, time: Long) {
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sharedPrefs(context, npub).edit {
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apply {
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putLong(PrefKeys.LAST_METADATA_UPDATE.key, time)
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}
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}
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}
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fun loadPinFromEncryptedStorage(): String? {
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val context = Amber.instance
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return sharedPrefs(context).getString(SettingsKeys.PIN.key, null)
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}
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fun savePinToEncryptedStorage(pin: String?) {
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val context = Amber.instance
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sharedPrefs(context).edit {
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apply {
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if (pin == null) {
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remove(SettingsKeys.PIN.key)
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} else {
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putString(SettingsKeys.PIN.key, pin)
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}
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}
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}
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}
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suspend fun reloadApp() {
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val context = Amber.instance
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currentAccount = null
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savedAccounts = null
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accountCache.clear()
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allSavedAccounts(context).forEach {
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loadFromEncryptedStorage(context, it.npub)
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}
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context.settings = loadSettingsFromEncryptedStorage(context)
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}
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fun loadSettingsFromEncryptedStorage(context: Context = Amber.instance): AmberSettings {
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checkNotInMainThread()
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sharedPrefs(context).apply {
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val proxyPort = getInt(SettingsKeys.PROXY_PORT.key, 9050)
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HttpClientManager.setDefaultProxyOnPort(proxyPort)
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return AmberSettings(
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defaultRelays = getStringSet(SettingsKeys.DEFAULT_RELAYS.key, null)?.mapNotNull {
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RelayUrlNormalizer.normalizeOrNull(it)
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} ?: defaultAppRelays,
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defaultProfileRelays = getStringSet(SettingsKeys.DEFAULT_PROFILE_RELAYS.key, null)?.mapNotNull {
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RelayUrlNormalizer.normalizeOrNull(it)
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} ?: defaultIndexerRelays,
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lastBiometricsTime = getLong(SettingsKeys.LAST_BIOMETRICS_TIME.key, 0),
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useAuth = getBoolean(SettingsKeys.USE_AUTH.key, false),
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biometricsTimeType = parseBiometricsTimeType(getInt(SettingsKeys.BIOMETRICS_TYPE.key, 0)),
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usePin = getBoolean(SettingsKeys.USE_PIN.key, false),
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useProxy = getBoolean(SettingsKeys.USE_PROXY.key, false),
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proxyPort = getInt(SettingsKeys.PROXY_PORT.key, 9050),
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killSwitch = MutableStateFlow(getBoolean(SettingsKeys.KILL_SWITCH.key, false)),
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language = getString(SettingsKeys.LANGUAGE_PREFS.key, null),
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)
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}
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}
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private var savedAccounts: List<String>? = null
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@Suppress("DEPRECATION")
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private fun legacySavedAccounts(context: Context): List<String> = encryptedPreferences(context)
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.getString(SettingsKeys.SAVED_ACCOUNTS.key, null)?.split(COMMA) ?: listOf()
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private fun savedAccounts(context: Context): List<String> {
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if (savedAccounts == null) {
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savedAccounts = sharedPrefs(context)
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.getString(SettingsKeys.SAVED_ACCOUNTS.key, null)?.split(COMMA) ?: listOf()
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}
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return savedAccounts!!
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}
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private fun updateSavedAccounts(context: Context, accounts: List<String>) {
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if (savedAccounts != accounts) {
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savedAccounts = accounts
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sharedPrefs(context).edit {
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apply {
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putString(SettingsKeys.SAVED_ACCOUNTS.key, accounts.joinToString(COMMA).ifBlank { null })
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}
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}
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}
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}
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private fun getDirPath(context: Context): String = "${context.filesDir.parent}/shared_prefs/"
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private fun addAccount(context: Context, npub: String) {
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val accounts = savedAccounts(context).toMutableList()
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if (npub !in accounts) {
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accounts.add(npub)
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updateSavedAccounts(context, accounts)
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}
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}
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private fun setCurrentAccount(context: Context, account: Account) {
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updateCurrentAccount(context, account.npub)
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addAccount(context, account.npub)
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}
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fun switchToAccount(context: Context, npub: String) {
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updateCurrentAccount(context, npub)
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}
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fun containsAccount(context: Context, npub: String): Boolean = savedAccounts(context).contains(npub)
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/**
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* Removes the account from the app level shared preferences
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*/
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private fun removeAccount(context: Context, npub: String) {
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val accounts = savedAccounts(context).toMutableList()
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if (accounts.remove(npub)) {
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updateSavedAccounts(context, accounts)
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}
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}
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/**
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* Deletes the npub-specific shared preference file
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*/
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private fun deleteUserPreferenceFile(context: Context, npub: String) {
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val prefsDir = File(getDirPath(context))
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prefsDir.list()?.forEach {
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if (it.contains(npub)) {
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try {
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val result = File(prefsDir, it).delete()
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Log.d(Amber.TAG, "deleted $it: $result")
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} catch (e: Exception) {
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Log.d(Amber.TAG, "failed to delete $it", e)
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}
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}
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}
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}
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fun deleteLegacyUserPreferenceFile(context: Context, npub: String) {
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val prefsDir = File(getDirPath(context))
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prefsDir.list()?.forEach {
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if (it.contains(npub) && it.startsWith("secret_keeper")) {
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try {
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val result = File(prefsDir, it).delete()
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Log.d(Amber.TAG, "deleted $it: $result")
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} catch (e: Exception) {
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Log.d(Amber.TAG, "failed to delete $it", e)
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}
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}
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}
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}
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fun existsLegacySettings(context: Context): Boolean {
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val prefsDir = File(getDirPath(context))
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var result = false
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prefsDir.list()?.forEach {
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if (it == "secret_keeper.xml") {
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result = true
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}
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}
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return result
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}
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fun deleteSettingsPreferenceFile(context: Context) {
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val prefsDir = File(getDirPath(context))
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prefsDir.list()?.forEach {
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if (it == "secret_keeper.xml") {
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try {
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val result = File(prefsDir, it).delete()
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Log.d(Amber.TAG, "deleted $it: $result")
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} catch (e: Exception) {
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Log.d(Amber.TAG, "failed to delete $it", e)
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}
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}
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}
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}
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@Deprecated("Use sharedPrefs instead")
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private fun encryptedPreferences(
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context: Context,
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npub: String? = null,
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): SharedPreferences = EncryptedStorage.preferences(npub, context)
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private fun sharedPrefs(
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context: Context,
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npub: String? = null,
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): SharedPreferences {
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val preferenceFile = if (npub == null) "prefs" else "prefs_$npub"
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return context.getSharedPreferences(preferenceFile, Context.MODE_PRIVATE)
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}
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private suspend fun deleteUserDataStoreFile(context: Context, npub: String) {
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DataStoreAccess.clearCacheForNpub(context, npub)
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}
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/**
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* Clears the preferences for a given npub, deletes the preferences xml file,
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* and switches the user to the first account in the list if it exists
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*
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* We need to use `commit()` to write changes to disk and release the file
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* lock so that it can be deleted. If we use `apply()` there is a race
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* condition and the file will probably not be deleted
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*/
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@SuppressLint("ApplySharedPref")
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fun updatePrefsForLogout(npub: String, context: Context): Boolean {
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accountCache.get(npub)?.clearSignerCache()
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accountCache.remove(npub)
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val userPrefs = sharedPrefs(context, npub)
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userPrefs.edit(commit = true) { clear() }
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removeAccount(context, npub)
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deleteUserPreferenceFile(context, npub)
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runBlocking { deleteUserDataStoreFile(context, npub) }
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if (savedAccounts(context).isEmpty()) {
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val appPrefs = sharedPrefs(context)
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appPrefs.edit(commit = true) { clear() }
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return true
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} else if (currentAccount(context) == npub) {
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updateCurrentAccount(context, savedAccounts(context).elementAt(0))
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return false
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}
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return false
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}
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fun updatePrefsForLogin(
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context: Context,
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account: Account,
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pubKey: String?,
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privKey: String?,
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seedWords: String?,
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) {
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setCurrentAccount(context, account)
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Amber.instance.applicationIOScope.launch {
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saveToEncryptedStorage(context, account, pubKey, privKey, seedWords)
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}
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}
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suspend fun saveToEncryptedStorage(
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context: Context,
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account: Account,
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pubKey: String?,
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privKey: String?,
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seedWords: String?,
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) {
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val prefs = sharedPrefs(context = context, account.npub)
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prefs.edit {
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apply {
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pubKey?.let { putString(PrefKeys.NOSTR_PUBKEY.key, it) }
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putString(PrefKeys.ACCOUNT_NAME.key, account.name.value)
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putString(PrefKeys.PROFILE_URL.key, account.picture.value)
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putInt(PrefKeys.SIGN_POLICY.key, account.signPolicy)
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putBoolean(PrefKeys.DID_BACKUP.key, account.didBackup)
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}
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}
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privKey?.let {
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DataStoreAccess.saveEncryptedKey(context, account.npub, DataStoreAccess.NOSTR_PRIVKEY, it)
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}
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seedWords?.let {
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DataStoreAccess.saveEncryptedKey(
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context,
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account.npub,
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DataStoreAccess.SEED_WORDS,
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seedWords,
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)
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}
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accountCache.put(account.npub, account)
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}
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suspend fun loadFromEncryptedStorage(context: Context): Account? {
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currentAccount(context)?.let {
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return loadFromEncryptedStorage(context, it)
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}
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return null
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}
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suspend fun allAccounts(context: Context): List<Account> {
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val accountInfos = allSavedAccounts(context)
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return accountInfos.mapNotNull {
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loadFromEncryptedStorage(context, it.npub)
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}
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}
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fun loadFromEncryptedStorageSync(context: Context, npub: String? = null): Account? {
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if (savedAccounts == null || accountCache.size() == 0 || savedAccounts?.size != accountCache.size()) {
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Log.d(Amber.TAG, "accountCache is null loading accounts")
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runBlocking {
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allSavedAccounts(context).forEach {
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loadFromEncryptedStorage(context, it.npub)
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}
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}
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}
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if (npub == null) {
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val currentAccount = currentAccount(context) ?: return null
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return accountCache.get(currentAccount)
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}
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return accountCache.get(npub)
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}
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fun setAccountName(
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context: Context,
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npub: String,
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value: String,
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) {
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sharedPrefs(context, npub).edit {
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apply {
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putString(PrefKeys.ACCOUNT_NAME.key, value)
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}
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}
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accountCache.get(npub)?.name?.tryEmit(value)
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}
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fun getAccountName(context: Context, npub: String): String {
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sharedPrefs(context, npub).apply {
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return getString(PrefKeys.ACCOUNT_NAME.key, "") ?: ""
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}
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}
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fun updateProxy(
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context: Context,
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useProxy: Boolean,
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port: Int,
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) {
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sharedPrefs(context).edit {
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apply {
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putBoolean(SettingsKeys.USE_PROXY.key, useProxy)
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putInt(SettingsKeys.PROXY_PORT.key, port)
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}
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}
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Amber.instance.settings = loadSettingsFromEncryptedStorage()
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HttpClientManager.setDefaultProxyOnPort(port)
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}
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suspend fun loadFromEncryptedStorage(context: Context, npub: String): Account? {
|
|
if (accountCache.get(npub) != null) {
|
|
return accountCache.get(npub)
|
|
}
|
|
sharedPrefs(context, npub).apply {
|
|
val pubKey = getString(PrefKeys.NOSTR_PUBKEY.key, null) ?: return null
|
|
val name = getString(PrefKeys.ACCOUNT_NAME.key, "") ?: ""
|
|
val picture = getString(PrefKeys.PROFILE_URL.key, "") ?: ""
|
|
val signPolicy = getInt(PrefKeys.SIGN_POLICY.key, 1)
|
|
val didBackup = getBoolean(PrefKeys.DID_BACKUP.key, true)
|
|
|
|
val account =
|
|
Account(
|
|
hexKey = pubKey,
|
|
npub = pubKey.hexToByteArray().toNpub(),
|
|
name = MutableStateFlow(name),
|
|
picture = MutableStateFlow(picture),
|
|
signPolicy = signPolicy,
|
|
didBackup = didBackup,
|
|
)
|
|
accountCache.put(npub, account)
|
|
return account
|
|
}
|
|
}
|
|
|
|
suspend fun didMigrateFromLegacyStorage(context: Context, npub: String): Boolean {
|
|
val existingPrivKey = DataStoreAccess.getEncryptedKey(context, npub, DataStoreAccess.NOSTR_PRIVKEY)
|
|
return !existingPrivKey.isNullOrBlank()
|
|
}
|
|
|
|
@Suppress("DEPRECATION")
|
|
suspend fun migrateFromSharedPrefs(context: Context, npub: String) {
|
|
withContext(Dispatchers.IO) {
|
|
if (didMigrateFromLegacyStorage(context, npub)) return@withContext
|
|
val legacyPrefs = encryptedPreferences(context, npub)
|
|
val privKey = legacyPrefs.getString(PrefKeys.NOSTR_PRIVKEY.key, null)
|
|
if (privKey.isNullOrBlank()) {
|
|
return@withContext
|
|
}
|
|
val seedWords = legacyPrefs.getString(PrefKeys.SEED_WORDS.key, null)
|
|
DataStoreAccess.saveEncryptedKey(context, npub, DataStoreAccess.NOSTR_PRIVKEY, privKey)
|
|
if (!seedWords.isNullOrBlank()) {
|
|
DataStoreAccess.saveEncryptedKey(context, npub, DataStoreAccess.SEED_WORDS, seedWords)
|
|
}
|
|
legacyPrefs.edit {
|
|
apply {
|
|
remove(PrefKeys.NOSTR_PRIVKEY.key)
|
|
remove(PrefKeys.SEED_WORDS.key)
|
|
}
|
|
}
|
|
migrateUserSharedPrefs(context, npub)
|
|
deleteLegacyUserPreferenceFile(context, npub)
|
|
}
|
|
}
|
|
|
|
@Suppress("DEPRECATION")
|
|
private fun migrateUserSharedPrefs(context: Context, npub: String) {
|
|
val legacyPrefs = encryptedPreferences(context, npub)
|
|
val sharedPrefs = sharedPrefs(context, npub)
|
|
for ((key, value) in legacyPrefs.all) {
|
|
when (value) {
|
|
is String -> sharedPrefs.edit { putString(key, value) }
|
|
is Boolean -> sharedPrefs.edit { putBoolean(key, value) }
|
|
is Int -> sharedPrefs.edit { putInt(key, value) }
|
|
is Long -> sharedPrefs.edit { putLong(key, value) }
|
|
is Float -> sharedPrefs.edit { putFloat(key, value) }
|
|
is Set<*> -> {
|
|
@Suppress("UNCHECKED_CAST")
|
|
if (value.all { it is String }) {
|
|
sharedPrefs.edit { putStringSet(key, value as Set<String>) }
|
|
}
|
|
}
|
|
else -> {
|
|
// Ignore unsupported types
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
@Suppress("DEPRECATION")
|
|
fun migrateSettings(context: Context) {
|
|
val settingsPrefs = sharedPrefs(context)
|
|
val legacySettingsPrefs = encryptedPreferences(context)
|
|
for ((key, value) in legacySettingsPrefs.all) {
|
|
when (value) {
|
|
is String -> settingsPrefs.edit { putString(key, value) }
|
|
is Boolean -> settingsPrefs.edit { putBoolean(key, value) }
|
|
is Int -> settingsPrefs.edit { putInt(key, value) }
|
|
is Long -> settingsPrefs.edit { putLong(key, value) }
|
|
is Float -> settingsPrefs.edit { putFloat(key, value) }
|
|
is Set<*> -> {
|
|
@Suppress("UNCHECKED_CAST")
|
|
if (value.all { it is String }) {
|
|
settingsPrefs.edit { putStringSet(key, value as Set<String>) }
|
|
}
|
|
}
|
|
else -> {
|
|
// Ignore unsupported types
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fun migrateTorSettings(context: Context) {
|
|
if (sharedPrefs(context).contains(SettingsKeys.USE_PROXY.key)) return
|
|
|
|
val useProxy = allSavedAccounts(context).any {
|
|
sharedPrefs(context, it.npub).getBoolean(SettingsKeys.USE_PROXY.key, false)
|
|
}
|
|
val proxyPort: Int = allSavedAccounts(context).firstNotNullOfOrNull {
|
|
if (sharedPrefs(context, it.npub).getBoolean(SettingsKeys.USE_PROXY.key, false)) {
|
|
sharedPrefs(context, it.npub).getInt(SettingsKeys.PROXY_PORT.key, 9050)
|
|
} else {
|
|
null
|
|
}
|
|
} ?: 9050
|
|
saveSettingsToEncryptedStorage(
|
|
settings = loadSettingsFromEncryptedStorage(context).copy(
|
|
useProxy = useProxy,
|
|
proxyPort = proxyPort,
|
|
),
|
|
)
|
|
}
|
|
}
|