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Develop See merge request papers/airgap/airgap-vault!253
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@@ -89,3 +89,5 @@ capacitor-cordova-android-plugins | |
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| # Copied web assets | ||
| app/src/main/assets/public | ||
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| .cxx | ||
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174 changes: 174 additions & 0 deletions
174
android/app/src/main/java/it/airgap/vault/plugin/saplingnative/SaplingNative.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,174 @@ | ||
| package it.airgap.vault.plugin.saplingnative | ||
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| import com.getcapacitor.NativePlugin | ||
| import com.getcapacitor.Plugin | ||
| import com.getcapacitor.PluginCall | ||
| import com.getcapacitor.PluginMethod | ||
| import it.airgap.sapling.Sapling | ||
| import it.airgap.vault.util.* | ||
| import kotlin.concurrent.thread | ||
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| @NativePlugin | ||
| class SaplingNative : Plugin() { | ||
| private val sapling: Sapling by lazy { Sapling() } | ||
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| @PluginMethod | ||
| fun isSupported(call: PluginCall) { | ||
| call.resolveWithData(Key.IS_SUPPORTED to true) | ||
| } | ||
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| @PluginMethod | ||
| fun initParameters(call: PluginCall) { | ||
| with(call) { | ||
| thread { | ||
| tryResolveCatchReject { | ||
| val spendParameters = readFromAssets("public/assets/sapling/sapling-spend.params") | ||
| val outputParameters = readFromAssets("public/assets/sapling/sapling-output.params") | ||
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| sapling.initParameters(spendParameters, outputParameters) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| @PluginMethod | ||
| fun initProvingContext(call: PluginCall) { | ||
| call.resolveWithData(Key.CONTEXT to sapling.initProvingContext().toString()) | ||
| } | ||
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| @PluginMethod | ||
| fun dropProvingContext(call: PluginCall) { | ||
| with(call) { | ||
| assertReceived(Param.CONTEXT) | ||
| sapling.dropProvingContext(context) | ||
| resolve() | ||
| } | ||
| } | ||
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| @PluginMethod | ||
| fun prepareSpendDescription(call: PluginCall) { | ||
| with(call) { | ||
| assertReceived( | ||
| Param.CONTEXT, | ||
| Param.SPENDING_KEY, | ||
| Param.ADDRESS, | ||
| Param.RCM, | ||
| Param.AR, | ||
| Param.VALUE, | ||
| Param.ROOT, | ||
| Param.MERKLE_PATH | ||
| ) | ||
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| tryResolveWithDataCatchReject { | ||
| val spendDescription = sapling.prepareSpendDescription( | ||
| context, | ||
| spendingKey, | ||
| address, | ||
| rcm, | ||
| ar, | ||
| value, | ||
| root, | ||
| merklePath | ||
| ) | ||
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| listOf(Key.SPEND_DESCRIPTION to spendDescription.asHexString()) | ||
| } | ||
| } | ||
| } | ||
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| @PluginMethod | ||
| fun preparePartialOutputDescription(call: PluginCall) { | ||
| with(call) { | ||
| assertReceived( | ||
| Param.CONTEXT, | ||
| Param.ADDRESS, | ||
| Param.RCM, | ||
| Param.ESK, | ||
| Param.VALUE | ||
| ) | ||
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| tryResolveWithDataCatchReject { | ||
| val outputDescription = sapling.preparePartialOutputDescription( | ||
| context, | ||
| address, | ||
| rcm, | ||
| esk, | ||
| value | ||
| ) | ||
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| listOf(Key.OUTPUT_DESCRIPTION to outputDescription.asHexString()) | ||
| } | ||
| } | ||
| } | ||
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| @PluginMethod | ||
| fun createBindingSignature(call: PluginCall) { | ||
| with(call) { | ||
| assertReceived(Param.CONTEXT, Param.BALANCE, Param.SIGHASH) | ||
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| tryResolveWithDataCatchReject { | ||
| val bindingSignature = sapling.createBindingSignature(context, balance, sighash) | ||
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| listOf(Key.BINDING_SIGNATURE to bindingSignature.asHexString()) | ||
| } | ||
| } | ||
| } | ||
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| private val PluginCall.context: Long | ||
| get() = getString(Param.CONTEXT).toLong() | ||
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| private val PluginCall.spendingKey: ByteArray | ||
| get() = getString(Param.SPENDING_KEY).asByteArray() | ||
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| private val PluginCall.address: ByteArray | ||
| get() = getString(Param.ADDRESS).asByteArray() | ||
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| private val PluginCall.rcm: ByteArray | ||
| get() = getString(Param.RCM).asByteArray() | ||
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| private val PluginCall.ar: ByteArray | ||
| get() = getString(Param.AR).asByteArray() | ||
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| private val PluginCall.esk: ByteArray | ||
| get() = getString(Param.ESK).asByteArray() | ||
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| private val PluginCall.value: Long | ||
| get() = getString(Param.VALUE).toLong() | ||
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| private val PluginCall.root: ByteArray | ||
| get() = getString(Param.ROOT).asByteArray() | ||
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| private val PluginCall.merklePath: ByteArray | ||
| get() = getString(Param.MERKLE_PATH).asByteArray() | ||
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| private val PluginCall.balance: Long | ||
| get() = getString(Param.BALANCE).toLong() | ||
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| private val PluginCall.sighash: ByteArray | ||
| get() = getString(Param.SIGHASH).asByteArray() | ||
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| private object Param { | ||
| const val CONTEXT = "context" | ||
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| const val SPENDING_KEY = "spendingKey" | ||
| const val ADDRESS = "address" | ||
| const val RCM = "rcm" | ||
| const val AR = "ar" | ||
| const val ESK = "esk" | ||
| const val VALUE = "value" | ||
| const val ROOT = "root" | ||
| const val MERKLE_PATH = "merklePath" | ||
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| const val BALANCE = "balance" | ||
| const val SIGHASH = "sighash" | ||
| } | ||
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| private object Key { | ||
| const val IS_SUPPORTED = "isSupported" | ||
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| const val CONTEXT = "context" | ||
| const val SPEND_DESCRIPTION = "spendDescription" | ||
| const val OUTPUT_DESCRIPTION = "outputDescription" | ||
| const val BINDING_SIGNATURE = "bindingSignature" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,8 @@ | ||
| package it.airgap.vault.util | ||
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| fun String.isHex(): Boolean = matches(Regex("^(0x)?([0-9a-fA-F]{2})+$")) | ||
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| fun String.asByteArray(): ByteArray = | ||
| if (isHex()) chunked(2).map { it.toInt(16).toByte() }.toByteArray() else toByteArray() | ||
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| fun ByteArray.asHexString(): String = joinToString(separator = "") { "%02x".format(it) } |
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