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@ -11,19 +11,33 @@ import com.goterl.lazysodium.interfaces.PwHash
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import com.goterl.lazysodium.interfaces.SecretBox |
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import com.goterl.lazysodium.interfaces.Sign |
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import com.goterl.lazysodium.utils.Key |
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import nl.komponents.kovenant.* |
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import nl.komponents.kovenant.Promise |
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import nl.komponents.kovenant.all |
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import nl.komponents.kovenant.deferred |
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import nl.komponents.kovenant.functional.bind |
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import nl.komponents.kovenant.functional.map |
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import nl.komponents.kovenant.task |
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import org.session.libsession.messaging.MessagingModuleConfiguration |
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import org.session.libsession.messaging.utilities.MessageWrapper |
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import org.session.libsignal.crypto.getRandomElement |
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import org.session.libsignal.database.LokiAPIDatabaseProtocol |
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import org.session.libsignal.protos.SignalServiceProtos |
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import org.session.libsignal.utilities.* |
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import org.session.libsignal.utilities.Base64 |
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import org.session.libsignal.utilities.Broadcaster |
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import org.session.libsignal.utilities.HTTP |
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import org.session.libsignal.utilities.Hex |
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import org.session.libsignal.utilities.Log |
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import org.session.libsignal.utilities.Snode |
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import org.session.libsignal.utilities.ThreadUtils |
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import org.session.libsignal.utilities.prettifiedDescription |
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import org.session.libsignal.utilities.retryIfNeeded |
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import java.security.SecureRandom |
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import java.util.* |
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import kotlin.Pair |
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import java.util.Date |
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import java.util.Locale |
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import kotlin.collections.component1 |
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import kotlin.collections.component2 |
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import kotlin.collections.set |
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import kotlin.properties.Delegates.observable |
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object SnodeAPI { |
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private val sodium by lazy { LazySodiumAndroid(SodiumAndroid()) } |
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@ -41,6 +55,12 @@ object SnodeAPI {
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* user's clock is incorrect. |
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*/ |
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internal var clockOffset = 0L |
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internal var forkInfo by observable(database.getForkInfo()) { _, oldValue, newValue -> |
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if (newValue > oldValue) { |
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Log.d("Loki", "Setting new fork info new: $newValue, old: $oldValue") |
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database.setForkInfo(newValue) |
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} |
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} |
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// Settings |
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private val maxRetryCount = 6 |
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@ -55,11 +75,10 @@ object SnodeAPI {
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setOf( "https://storage.seed1.loki.network:$seedNodePort", "https://storage.seed3.loki.network:$seedNodePort", "https://public.loki.foundation:$seedNodePort" ) |
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} |
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} |
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private val snodeFailureThreshold = 3 |
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private val targetSwarmSnodeCount = 2 |
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private val useOnionRequests = true |
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private const val snodeFailureThreshold = 3 |
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private const val useOnionRequests = true |
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internal val useTestnet = false |
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const val useTestnet = false |
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// Error |
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internal sealed class Error(val description: String) : Exception(description) { |
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@ -254,11 +273,6 @@ object SnodeAPI {
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return promise |
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} |
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fun getTargetSnodes(publicKey: String): Promise<List<Snode>, Exception> { |
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// SecureRandom() should be cryptographically secure |
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return getSwarm(publicKey).map { it.shuffled(SecureRandom()).take(targetSwarmSnodeCount) } |
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} |
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fun getSwarm(publicKey: String): Promise<Set<Snode>, Exception> { |
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val cachedSwarm = database.getSwarm(publicKey) |
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if (cachedSwarm != null && cachedSwarm.size >= minimumSwarmSnodeCount) { |
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@ -266,7 +280,7 @@ object SnodeAPI {
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cachedSwarmCopy.addAll(cachedSwarm) |
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return task { cachedSwarmCopy } |
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} else { |
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val parameters = mapOf( "pubKey" to if (useTestnet) publicKey.removing05PrefixIfNeeded() else publicKey ) |
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val parameters = mapOf( "pubKey" to publicKey ) |
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return getRandomSnode().bind { |
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invoke(Snode.Method.GetSwarm, it, publicKey, parameters) |
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}.map { |
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@ -277,28 +291,39 @@ object SnodeAPI {
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} |
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} |
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fun getRawMessages(snode: Snode, publicKey: String): RawResponsePromise { |
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// val userED25519KeyPair = MessagingModuleConfiguration.shared.getUserED25519KeyPair() ?: return Promise.ofFail(Error.NoKeyPair) |
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fun getRawMessages(snode: Snode, publicKey: String, requiresAuth: Boolean = true, namespace: Int = 0): RawResponsePromise { |
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val userED25519KeyPair = MessagingModuleConfiguration.shared.getUserED25519KeyPair() ?: return Promise.ofFail(Error.NoKeyPair) |
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// Get last message hash |
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val lastHashValue = database.getLastMessageHashValue(snode, publicKey) ?: "" |
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val lastHashValue = database.getLastMessageHashValue(snode, publicKey, namespace) ?: "" |
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val parameters = mutableMapOf<String,Any>( |
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"pubKey" to publicKey, |
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"last_hash" to lastHashValue, |
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) |
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// Construct signature |
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// val timestamp = Date().time + SnodeAPI.clockOffset |
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// val ed25519PublicKey = userED25519KeyPair.publicKey.asHexString |
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// val verificationData = "retrieve$timestamp".toByteArray() |
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// val signature = ByteArray(Sign.BYTES) |
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// try { |
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// sodium.cryptoSignDetached(signature, verificationData, verificationData.size.toLong(), userED25519KeyPair.secretKey.asBytes) |
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// } catch (exception: Exception) { |
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// return Promise.ofFail(Error.SigningFailed) |
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// } |
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if (requiresAuth) { |
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val timestamp = Date().time + SnodeAPI.clockOffset |
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val ed25519PublicKey = userED25519KeyPair.publicKey.asHexString |
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val signature = ByteArray(Sign.BYTES) |
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val verificationData = |
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if (namespace != 0) "retrieve$namespace$timestamp".toByteArray() |
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else "retrieve$timestamp".toByteArray() |
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try { |
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sodium.cryptoSignDetached(signature, verificationData, verificationData.size.toLong(), userED25519KeyPair.secretKey.asBytes) |
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} catch (exception: Exception) { |
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return Promise.ofFail(Error.SigningFailed) |
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} |
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parameters["timestamp"] = timestamp |
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parameters["pubkey_ed25519"] = ed25519PublicKey |
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parameters["signature"] = Base64.encodeBytes(signature) |
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} |
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// If the namespace is default (0) here it will be implicitly read as 0 on the storage server |
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// we only need to specify it explicitly if we want to (in future) or if it is non-zero |
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if (namespace != 0) { |
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parameters["namespace"] = namespace |
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} |
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// Make the request |
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val parameters = mapOf( |
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"pubKey" to if (useTestnet) publicKey.removing05PrefixIfNeeded() else publicKey, |
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"lastHash" to lastHashValue, |
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// "timestamp" to timestamp, |
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// "pubkey_ed25519" to ed25519PublicKey, |
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// "signature" to Base64.encodeBytes(signature) |
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) |
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return invoke(Snode.Method.GetMessages, snode, publicKey, parameters) |
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} |
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@ -317,14 +342,35 @@ object SnodeAPI {
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} |
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} |
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fun sendMessage(message: SnodeMessage): Promise<Set<RawResponsePromise>, Exception> { |
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val destination = if (useTestnet) message.recipient.removing05PrefixIfNeeded() else message.recipient |
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fun sendMessage(message: SnodeMessage, requiresAuth: Boolean = false, namespace: Int = 0): RawResponsePromise { |
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val destination = message.recipient |
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return retryIfNeeded(maxRetryCount) { |
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getTargetSnodes(destination).map { swarm -> |
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swarm.map { snode -> |
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val parameters = message.toJSON() |
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invoke(Snode.Method.SendMessage, snode, destination, parameters) |
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}.toSet() |
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val module = MessagingModuleConfiguration.shared |
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val userED25519KeyPair = module.getUserED25519KeyPair() ?: return@retryIfNeeded Promise.ofFail(Error.NoKeyPair) |
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val parameters = message.toJSON().toMutableMap<String,Any>() |
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// Construct signature |
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if (requiresAuth) { |
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val sigTimestamp = System.currentTimeMillis() + SnodeAPI.clockOffset |
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val ed25519PublicKey = userED25519KeyPair.publicKey.asHexString |
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val signature = ByteArray(Sign.BYTES) |
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// assume namespace here is non-zero, as zero namespace doesn't require auth |
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val verificationData = "store$namespace$sigTimestamp".toByteArray() |
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try { |
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sodium.cryptoSignDetached(signature, verificationData, verificationData.size.toLong(), userED25519KeyPair.secretKey.asBytes) |
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} catch (exception: Exception) { |
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return@retryIfNeeded Promise.ofFail(Error.SigningFailed) |
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} |
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parameters["sig_timestamp"] = sigTimestamp |
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parameters["pubkey_ed25519"] = ed25519PublicKey |
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parameters["signature"] = Base64.encodeBytes(signature) |
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} |
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// If the namespace is default (0) here it will be implicitly read as 0 on the storage server |
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// we only need to specify it explicitly if we want to (in future) or if it is non-zero |
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if (namespace != 0) { |
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parameters["namespace"] = namespace |
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} |
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getSingleTargetSnode(destination).bind { snode -> |
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invoke(Snode.Method.SendMessage, snode, destination, parameters) |
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} |
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} |
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} |
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@ -426,29 +472,29 @@ object SnodeAPI {
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} |
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} |
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fun parseRawMessagesResponse(rawResponse: RawResponse, snode: Snode, publicKey: String): List<Pair<SignalServiceProtos.Envelope, String?>> { |
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fun parseRawMessagesResponse(rawResponse: RawResponse, snode: Snode, publicKey: String, namespace: Int = 0): List<Pair<SignalServiceProtos.Envelope, String?>> { |
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val messages = rawResponse["messages"] as? List<*> |
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return if (messages != null) { |
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updateLastMessageHashValueIfPossible(snode, publicKey, messages) |
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val newRawMessages = removeDuplicates(publicKey, messages) |
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updateLastMessageHashValueIfPossible(snode, publicKey, messages, namespace) |
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val newRawMessages = removeDuplicates(publicKey, messages, namespace) |
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return parseEnvelopes(newRawMessages); |
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} else { |
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listOf() |
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} |
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} |
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private fun updateLastMessageHashValueIfPossible(snode: Snode, publicKey: String, rawMessages: List<*>) { |
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private fun updateLastMessageHashValueIfPossible(snode: Snode, publicKey: String, rawMessages: List<*>, namespace: Int) { |
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val lastMessageAsJSON = rawMessages.lastOrNull() as? Map<*, *> |
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val hashValue = lastMessageAsJSON?.get("hash") as? String |
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if (hashValue != null) { |
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database.setLastMessageHashValue(snode, publicKey, hashValue) |
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database.setLastMessageHashValue(snode, publicKey, hashValue, namespace) |
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} else if (rawMessages.isNotEmpty()) { |
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Log.d("Loki", "Failed to update last message hash value from: ${rawMessages.prettifiedDescription()}.") |
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} |
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} |
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private fun removeDuplicates(publicKey: String, rawMessages: List<*>): List<*> { |
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val receivedMessageHashValues = database.getReceivedMessageHashValues(publicKey)?.toMutableSet() ?: mutableSetOf() |
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private fun removeDuplicates(publicKey: String, rawMessages: List<*>, namespace: Int): List<*> { |
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val receivedMessageHashValues = database.getReceivedMessageHashValues(publicKey, namespace)?.toMutableSet() ?: mutableSetOf() |
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val result = rawMessages.filter { rawMessage -> |
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val rawMessageAsJSON = rawMessage as? Map<*, *> |
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val hashValue = rawMessageAsJSON?.get("hash") as? String |
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@ -461,7 +507,7 @@ object SnodeAPI {
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false |
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} |
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} |
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database.setReceivedMessageHashValues(publicKey, receivedMessageHashValues) |
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database.setReceivedMessageHashValues(publicKey, receivedMessageHashValues, namespace) |
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return result |
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} |
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jubb
1 month ago