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Develop See merge request papers/airgap/airgap-vault!412
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136 changes: 136 additions & 0 deletions
136
android/app/src/main/java/it/airgap/vault/plugin/isolatedmodules/FileExplorer.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| package it.airgap.vault.plugin.isolatedmodules | ||
|
|
||
| import android.content.Context | ||
| import com.getcapacitor.JSObject | ||
| import it.airgap.vault.plugin.isolatedmodules.js.JSModule | ||
| import it.airgap.vault.plugin.isolatedmodules.js.environment.JSEnvironment | ||
| import it.airgap.vault.util.Directory | ||
| import it.airgap.vault.util.getDirectory | ||
| import it.airgap.vault.util.readBytes | ||
| import java.io.File | ||
|
|
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| interface StaticSourcesExplorer { | ||
| fun readJavaScriptEngineUtils(): ByteArray | ||
| fun readIsolatedModulesScript(): ByteArray | ||
| } | ||
|
|
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| interface DynamicSourcesExplorer<in M : JSModule> { | ||
| fun listModules(): List<String> | ||
|
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| fun readModuleSources(module: M): Sequence<ByteArray> | ||
| fun readModuleManifest(module: String): ByteArray | ||
| } | ||
|
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| private const val MANIFEST_FILENAME = "manifest.json" | ||
|
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| class FileExplorer private constructor( | ||
| private val context: Context, | ||
| private val assetsExplorer: AssetsExplorer, | ||
| private val filesExplorer: FilesExplorer, | ||
| ) : StaticSourcesExplorer by assetsExplorer { | ||
| constructor(context: Context) : this(context, AssetsExplorer(context), FilesExplorer(context)) | ||
|
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| fun loadAssetModules(): List<JSModule> = loadModules(assetsExplorer, JSModule::Asset) | ||
|
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| fun loadInstalledModules(): List<JSModule> = loadModules(filesExplorer, JSModule::Installed) | ||
|
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| fun loadInstalledModule(identifier: String): JSModule { | ||
| val manifest = JSObject(filesExplorer.readModuleManifest(identifier).decodeToString()) | ||
|
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| return loadModule(identifier, manifest, JSModule::Installed) | ||
| } | ||
|
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| fun loadPreviewModule(path: String, directory: Directory): JSModule { | ||
| val moduleDir = File(context.getDirectory(directory), path) | ||
| val manifest = JSObject(File(moduleDir, MANIFEST_FILENAME).readBytes().decodeToString()) | ||
|
|
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| return loadModule(moduleDir.name, manifest) { identifier, namespace, preferredEnvironment, paths -> | ||
| JSModule.Preview( | ||
| identifier, | ||
| namespace, | ||
| preferredEnvironment, | ||
| paths, | ||
| moduleDir.absolutePath, | ||
| ) | ||
| } | ||
| } | ||
|
|
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| fun readModuleSources(module: JSModule): Sequence<ByteArray> = | ||
| when (module) { | ||
| is JSModule.Asset -> assetsExplorer.readModuleSources(module) | ||
| is JSModule.Installed -> filesExplorer.readModuleSources(module) | ||
| is JSModule.Preview -> module.sources.asSequence().map { File(module.path, it).readBytes() } | ||
| } | ||
|
|
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| fun readModuleManifest(module: JSModule): ByteArray = | ||
| when (module) { | ||
| is JSModule.Asset -> assetsExplorer.readModuleManifest(module.identifier) | ||
| is JSModule.Installed -> filesExplorer.readModuleManifest(module.identifier) | ||
| is JSModule.Preview -> File(module.path, MANIFEST_FILENAME).readBytes() | ||
| } | ||
|
|
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| private fun <T : JSModule> loadModules( | ||
| explorer: DynamicSourcesExplorer<T>, | ||
| constructor: (identifier: String, namespace: String?, preferredEnvironment: JSEnvironment.Type, paths: List<String>) -> T, | ||
| ): List<T> = explorer.listModules().map { module -> | ||
| val manifest = JSObject(explorer.readModuleManifest(module).decodeToString()) | ||
| loadModule(module, manifest, constructor) | ||
| } | ||
|
|
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| private fun <T : JSModule> loadModule( | ||
| identifier: String, | ||
| manifest: JSObject, | ||
| constructor: (identifier: String, namespace: String?, preferredEnvironment: JSEnvironment.Type, paths: List<String>) -> T, | ||
| ): T { | ||
| val namespace = manifest.getJSObject("src")?.getString("namespace") | ||
| val preferredEnvironment = manifest.getJSObject("jsenv")?.getString("android")?.let { JSEnvironment.Type.fromString(it) } ?: JSEnvironment.Type.JavaScriptEngine | ||
| val sources = buildList { | ||
| val include = manifest.getJSONArray("include") | ||
| for (i in 0 until include.length()) { | ||
| val source = include.getString(i).takeIf { it.endsWith(".js") } ?: continue | ||
| add(source.trimStart('/')) | ||
| } | ||
| } | ||
|
|
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| return constructor(identifier, namespace, preferredEnvironment, sources) | ||
| } | ||
| } | ||
|
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| private class AssetsExplorer(private val context: Context) : StaticSourcesExplorer, DynamicSourcesExplorer<JSModule.Asset> { | ||
| override fun readJavaScriptEngineUtils(): ByteArray = context.assets.readBytes(JAVA_SCRIPT_ENGINE_UTILS) | ||
| override fun readIsolatedModulesScript(): ByteArray = context.assets.readBytes(SCRIPT) | ||
|
|
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| override fun listModules(): List<String> = context.assets.list(MODULES_DIR)?.toList() ?: emptyList() | ||
|
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| override fun readModuleSources(module: JSModule.Asset): Sequence<ByteArray> = | ||
| module.sources.asSequence().map { context.assets.readBytes(modulePath(module.identifier, it))} | ||
| override fun readModuleManifest(module: String): ByteArray = context.assets.readBytes(modulePath(module, MANIFEST_FILENAME)) | ||
|
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| private fun modulePath(module: String, path: String): String = | ||
| "${MODULES_DIR}/${module.trimStart('/')}/${path.trimStart('/')}" | ||
|
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| companion object { | ||
| private const val SCRIPT = "public/assets/native/isolated_modules/isolated-modules.script.js" | ||
| private const val JAVA_SCRIPT_ENGINE_UTILS = "public/assets/native/isolated_modules/isolated-modules.js-engine-android.js" | ||
|
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| private const val MODULES_DIR = "public/assets/protocol_modules" | ||
| } | ||
| } | ||
|
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| private class FilesExplorer(private val context: Context) : DynamicSourcesExplorer<JSModule.Installed> { | ||
| private val modulesDir: File | ||
| get() = File(context.filesDir, MODULES_DIR) | ||
|
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| override fun listModules(): List<String> = modulesDir.list()?.toList() ?: emptyList() | ||
|
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| override fun readModuleSources(module: JSModule.Installed): Sequence<ByteArray> = | ||
| module.sources.asSequence().map { File(modulesDir, modulePath(module.identifier, it)).readBytes() } | ||
| override fun readModuleManifest(module: String): ByteArray = File(modulesDir, modulePath(module, MANIFEST_FILENAME)).readBytes() | ||
|
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| private fun modulePath(module: String, path: String): String = | ||
| "${module.trimStart('/')}/${path.trimStart('/')}" | ||
|
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| companion object { | ||
| private const val MODULES_DIR = "protocol_modules" | ||
| } | ||
| } |
157 changes: 157 additions & 0 deletions
157
android/app/src/main/java/it/airgap/vault/plugin/isolatedmodules/IsolatedModules.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| package it.airgap.vault.plugin.isolatedmodules | ||
|
|
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| import androidx.lifecycle.lifecycleScope | ||
| import com.getcapacitor.JSArray | ||
| import com.getcapacitor.JSObject | ||
| import com.getcapacitor.Plugin | ||
| import com.getcapacitor.PluginCall | ||
| import com.getcapacitor.PluginMethod | ||
| import com.getcapacitor.annotation.CapacitorPlugin | ||
| import it.airgap.vault.plugin.isolatedmodules.js.* | ||
| import it.airgap.vault.util.* | ||
| import kotlinx.coroutines.Deferred | ||
| import kotlinx.coroutines.launch | ||
|
|
||
| @CapacitorPlugin | ||
| class IsolatedModules : Plugin() { | ||
| private val jsEvaluator: Deferred<JSEvaluator> = ExecutableDeferred { JSEvaluator(context, fileExplorer) } | ||
| private val fileExplorer: FileExplorer by lazy { FileExplorer(context) } | ||
|
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| @PluginMethod | ||
| fun previewModule(call: PluginCall) { | ||
| call.executeCatching { | ||
| assertReceived(Param.PATH, Param.DIRECTORY) | ||
|
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| activity.lifecycleScope.launch { | ||
| executeCatching { | ||
| val module = fileExplorer.loadPreviewModule(path, directory) | ||
| val manifest = fileExplorer.readModuleManifest(module) | ||
| val moduleJson = jsEvaluator.await().evaluatePreviewModule(module) | ||
|
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| resolve( | ||
| JSObject( | ||
| """ | ||
| { | ||
| "module": $moduleJson, | ||
| "manifest": ${JSObject(manifest.decodeToString())} | ||
| } | ||
| """.trimIndent() | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @PluginMethod | ||
| fun registerModule(call: PluginCall) { | ||
| call.executeCatching { | ||
| assertReceived(Param.IDENTIFIER, Param.PROTOCOL_IDENTIFIERS) | ||
|
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| activity.lifecycleScope.launch { | ||
| executeCatching { | ||
| val module = fileExplorer.loadInstalledModule(identifier) | ||
| jsEvaluator.await().registerModule(module, protocolIdentifiers) | ||
|
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| resolve() | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @PluginMethod | ||
| fun loadModules(call: PluginCall) { | ||
| activity.lifecycleScope.launch { | ||
| call.executeCatching { | ||
| val modules = fileExplorer.loadAssetModules() + fileExplorer.loadInstalledModules() | ||
|
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| resolve(jsEvaluator.await().evaluateLoadModules(modules, protocolType)) | ||
| } | ||
| } | ||
| } | ||
|
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| @PluginMethod | ||
| fun callMethod(call: PluginCall) { | ||
| call.executeCatching { | ||
| assertReceived(Param.TARGET, Param.METHOD) | ||
|
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| activity.lifecycleScope.launch { | ||
| executeCatching { | ||
| val value = when (target) { | ||
| JSCallMethodTarget.OfflineProtocol -> { | ||
| assertReceived(Param.PROTOCOL_IDENTIFIER) | ||
| jsEvaluator.await().evaluateCallOfflineProtocolMethod(method, args, protocolIdentifier) | ||
| } | ||
| JSCallMethodTarget.OnlineProtocol -> { | ||
| assertReceived(Param.PROTOCOL_IDENTIFIER) | ||
| jsEvaluator.await().evaluateCallOnlineProtocolMethod(method, args, protocolIdentifier, networkId) | ||
| } | ||
| JSCallMethodTarget.BlockExplorer -> { | ||
| assertReceived(Param.PROTOCOL_IDENTIFIER) | ||
| jsEvaluator.await().evaluateCallBlockExplorerMethod(method, args, protocolIdentifier, networkId) | ||
| } | ||
| JSCallMethodTarget.V3SerializerCompanion -> { | ||
| assertReceived(Param.MODULE_IDENTIFIER) | ||
| jsEvaluator.await().evaluateCallV3SerializerCompanionMethod(method, args, moduleIdentifier) | ||
| } | ||
| } | ||
| resolve(value) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| override fun handleOnDestroy() { | ||
| super.handleOnDestroy() | ||
| activity.lifecycleScope.launch { | ||
| jsEvaluator.await().destroy() | ||
| } | ||
| } | ||
|
|
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| private val PluginCall.path: String | ||
| get() = getString(Param.PATH)!! | ||
|
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| private val PluginCall.directory: Directory | ||
| get() = getString(Param.DIRECTORY)?.let { Directory.fromString(it) }!! | ||
|
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| private val PluginCall.identifier: String | ||
| get() = getString(Param.IDENTIFIER)!! | ||
|
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| private val PluginCall.protocolIdentifiers: List<String> | ||
| get() = getArray(Param.PROTOCOL_IDENTIFIERS).toList() | ||
|
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| private val PluginCall.protocolType: JSProtocolType? | ||
| get() = getString(Param.PROTOCOL_TYPE)?.let { JSProtocolType.fromString(it) } | ||
|
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| private val PluginCall.target: JSCallMethodTarget | ||
| get() = getString(Param.TARGET)?.let { JSCallMethodTarget.fromString(it) }!! | ||
|
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| private val PluginCall.method: String | ||
| get() = getString(Param.METHOD)!! | ||
|
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| private val PluginCall.args: JSArray? | ||
| get() = getArray(Param.ARGS, null) | ||
|
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| private val PluginCall.protocolIdentifier: String | ||
| get() = getString(Param.PROTOCOL_IDENTIFIER)!! | ||
|
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| private val PluginCall.moduleIdentifier: String | ||
| get() = getString(Param.MODULE_IDENTIFIER)!! | ||
|
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| private val PluginCall.networkId: String? | ||
| get() = getString(Param.NETWORK_ID) | ||
|
|
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| private object Param { | ||
| const val PATH = "path" | ||
| const val DIRECTORY = "directory" | ||
| const val IDENTIFIER = "identifier" | ||
| const val PROTOCOL_IDENTIFIERS = "protocolIdentifiers" | ||
| const val PROTOCOL_TYPE = "protocolType" | ||
| const val TARGET = "target" | ||
| const val METHOD = "method" | ||
| const val ARGS = "args" | ||
| const val PROTOCOL_IDENTIFIER = "protocolIdentifier" | ||
| const val MODULE_IDENTIFIER = "moduleIdentifier" | ||
| const val NETWORK_ID = "networkId" | ||
| } | ||
| } |
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