google/capillary

Capillary is a library to simplify the sending of end-to-end encrypted push messages from Java-based application servers to Android clients.

capillary's Issues

e2ee mobile devices only?

Thank you very much for this 🥇

I would like to know: is it safe and possible to use without server side encryption?

As of today all communication should be e2ee, i would like to use it in android apps and just share keys from device to device. My backend is written in Go.

So i would like to encrypt userdata/-communication directly on android, send it through my services (of what kind and use ever) and decrypt only on targeted device. I would like to hide the key for my servers, to guarantee (as good as possible) e2ee for my customers.

Is it useful in this direction, like for messengers etc.?

Thanks for short response 😊

What is the copyright licence for this project?

I don't see copyright notice (licence.txt) for this project. Can that be updated? So if someone chooses to use this they know licensing issues ..

Unable to build libs/android project

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Download Capillary source code.
2. Follow instructions as per documentation mentioned @ https://github.com/google/capillary/tree/master/demo
3. Gradle Build failed after running below command.
   ./gradlew tools:installDist

Error stack :

MACLTUS59968:capillary m_223813$ ./gradlew tools:installDist --stacktrace

Configure project :lib-android
Project evaluation failed including an error in afterEvaluate {}.
java.lang.RuntimeException: SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
at com.android.build.gradle.internal.SdkHandler.getAndCheckSdkFolder(SdkHandler.java:270)
at com.android.build.gradle.internal.SdkHandler.getSdkLoader(SdkHandler.java:280)
at com.android.build.gradle.internal.SdkHandler.initTarget(SdkHandler.java:148)
at com.android.build.gradle.BasePlugin.ensureTargetSetup(BasePlugin.java:885)
at com.android.build.gradle.BasePlugin.createAndroidTasks(BasePlugin.java:702)
at com.android.build.gradle.BasePlugin.lambda$null$4(BasePlugin.java:652)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:81)
at com.android.build.gradle.BasePlugin.lambda$createTasks$5(BasePlugin.java:648)
at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:91)
at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:80)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:230)
at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:149)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:324)
at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:234)
at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:140)
at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy24.afterEvaluate(Unknown Source)
at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:76)
at org.gradle.configuration.project.LifecycleProjectEvaluator.doConfigure(LifecycleProjectEvaluator.java:70)
at org.gradle.configuration.project.LifecycleProjectEvaluator.access$100(LifecycleProjectEvaluator.java:34)
at org.gradle.configuration.project.LifecycleProjectEvaluator$ConfigureProject.run(LifecycleProjectEvaluator.java:110)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:50)
at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:666)
at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:135)
at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:35)
at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:62)
at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:38)
at org.gradle.initialization.DefaultGradleLauncher$ConfigureBuild.run(DefaultGradleLauncher.java:249)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.initialization.DefaultGradleLauncher.configureBuild(DefaultGradleLauncher.java:167)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:126)
at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:109)
at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:78)
at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:75)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:152)
at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:100)
at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:75)
at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$1.run(RunAsBuildOperationBuildActionRunner.java:43)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:40)
at org.gradle.tooling.internal.provider.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:51)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:47)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:39)
at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:25)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:80)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:53)
at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:57)
at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:32)
at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:36)
at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:25)
at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43)
at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29)
at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:69)
at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:30)
at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:59)
at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:44)
at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:45)
at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:30)
at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
at org.gradle.util.Swapper.swap(Swapper.java:38)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:62)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:295)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:748)

FAILURE: Build failed with an exception.

• Where:
  Build file '/Users/m_223813/capillary/lib-android/build.gradle' line: 68

• What went wrong:
  A problem occurred evaluating project ':lib-android'.

SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.

• Try:
  Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Exception is:
  org.gradle.api.GradleScriptException: A problem occurred evaluating project ':lib-android'.
  at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:92)
  at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl$2.run(DefaultScriptPluginFactory.java:199)
  at org.gradle.configuration.ProjectScriptTarget.addConfiguration(ProjectScriptTarget.java:77)
  at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:204)
  at org.gradle.configuration.BuildOperationScriptPlugin$1.run(BuildOperationScriptPlugin.java:61)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
  at org.gradle.configuration.BuildOperationScriptPlugin.apply(BuildOperationScriptPlugin.java:58)
  at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:41)
  at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:26)
  at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:34)
  at org.gradle.configuration.project.LifecycleProjectEvaluator.doConfigure(LifecycleProjectEvaluator.java:64)
  at org.gradle.configuration.project.LifecycleProjectEvaluator.access$100(LifecycleProjectEvaluator.java:34)
  at org.gradle.configuration.project.LifecycleProjectEvaluator$ConfigureProject.run(LifecycleProjectEvaluator.java:110)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
  at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:50)
  at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:666)
  at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:135)
  at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:35)
  at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:62)
  at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:38)
  at org.gradle.initialization.DefaultGradleLauncher$ConfigureBuild.run(DefaultGradleLauncher.java:249)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
  at org.gradle.initialization.DefaultGradleLauncher.configureBuild(DefaultGradleLauncher.java:167)
  at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:126)
  at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:109)
  at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:78)
  at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:75)
  at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:152)
  at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:100)
  at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:75)
  at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
  at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
  at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
  at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$1.run(RunAsBuildOperationBuildActionRunner.java:43)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
  at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
  at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:40)
  at org.gradle.tooling.internal.provider.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:51)
  at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:47)
  at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
  at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:39)
  at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:25)
  at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:80)
  at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:53)
  at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:57)
  at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:32)
  at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:36)
  at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:25)
  at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43)
  at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29)
  at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:69)
  at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:30)
  at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:59)
  at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:44)
  at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:45)
  at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:30)
  at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
  at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
  at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
  at org.gradle.util.Swapper.swap(Swapper.java:38)
  at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:62)
  at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82)
  at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
  at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
  at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
  at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:295)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
  at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
  at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
  Caused by: java.lang.RuntimeException: SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
  at com.android.build.gradle.internal.SdkHandler.getAndCheckSdkFolder(SdkHandler.java:270)
  at com.android.build.gradle.internal.SdkHandler.getSdkLoader(SdkHandler.java:280)
  at com.android.build.gradle.internal.SdkHandler.initTarget(SdkHandler.java:148)
  at com.android.build.gradle.BaseExtension.ensureTargetSetup(BaseExtension.java:1000)
  at com.android.build.gradle.BaseExtension.getBootClasspath(BaseExtension.java:888)
  at com.android.build.gradle.LibraryExtension_Decorated.getBootClasspath(Unknown Source)
  at com.android.build.gradle.LibraryExtension_Decorated$getBootClasspath.call(Unknown Source)
  at build_chajrt78vvhr7yepifp9ntwjj$_run_closure7.doCall(/Users/m_223813/capillary/lib-android/build.gradle:68)
  at org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:71)
  at org.gradle.util.ConfigureUtil.configureTarget(ConfigureUtil.java:160)
  at org.gradle.util.ConfigureUtil.configureSelf(ConfigureUtil.java:136)
  at org.gradle.api.internal.AbstractTask.configure(AbstractTask.java:634)
  at org.gradle.api.internal.project.DefaultProject.task(DefaultProject.java:1208)
  at org.gradle.internal.metaobject.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:479)
  at org.gradle.internal.metaobject.BeanDynamicObject.tryInvokeMethod(BeanDynamicObject.java:191)
  at org.gradle.internal.metaobject.CompositeDynamicObject.tryInvokeMethod(CompositeDynamicObject.java:98)
  at org.gradle.internal.metaobject.MixInClosurePropertiesAsMethodsDynamicObject.tryInvokeMethod(MixInClosurePropertiesAsMethodsDynamicObject.java:30)
  at org.gradle.groovy.scripts.BasicScript$ScriptDynamicObject.tryInvokeMethod(BasicScript.java:134)
  at org.gradle.internal.metaobject.AbstractDynamicObject.invokeMethod(AbstractDynamicObject.java:160)
  at org.gradle.groovy.scripts.BasicScript.invokeMethod(BasicScript.java:83)
  at build_chajrt78vvhr7yepifp9ntwjj.run(/Users/m_223813/capillary/lib-android/build.gradle:66)
  at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:90)
  ... 93 more

• Get more help at https://help.gradle.org

BUILD FAILED in 0s

OS. : Mac >> Mojave

Enabling proguard losing sharedPreference

Enabling proguard on an application in production would impact the reflection in the keyManager

    String prefName = String.format("%s_%s_preferences", getClass().getCanonicalName(), keychainId);

Is there anybody out there that have used capillary on server and decrypted messages on iOS?

We want to use capillary to support E2E encryption for push messages, on both android and iOS, on iOS we need to generate an RSA keypair, and provide the public key to the server. The problem is that we don't know what format Capillary expects the public key in.

We have tried to find out, and think that its an RSA 2048 in X.509 format and base64encoded. But our early attempts at this fails when Capillary tries to parse the public-key generated by our iOS app. We have used Heimdall to generate the keypair, and experimented with CryptoExportImportManager to convert the keys into DER format, but still no luck...

Anybody who can help, or at least say if this is feasible. (that is, using Capillary on server and E2E encrypt for iOS Clients.)

(Please excuse me if any of this doesn't make sense, as crypto is something Im not very familiar with. Im trying to learn, but all these key-types, formats, sizes, curves and encodings is still a jungle for me.)

Android Gradle conflict with Google firebase-firestore: protobuf-lite nested dependency

Describe the bug
I am attempting to test Capillary in a simple Android app (on device), but during the gradle build process I am getting "Error: Program type already present: com.google.protobuf.AnyProto" (or other classes).

I am using Google Firebase-Firestore DB, which implements grpc and uses nested dependency: com.google.protobuf:protobuf-lite:3.0.1.

Also, the google/Capillary library uses nested dependency: com.google.protobuf:protobuf-java:3.4.0.

If I exclude com.google.protobuf from the Capillary lib dependency only, the app will run, then crash when RSAKeyManager is instantiated, with error: "java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/protobuf/GeneratedMessageV3;" (I will not be implementing any direct client -> capillary service grpc, as both will have access to Firestore DB, and the capillary service will not be exposed to ingress)

To Reproduce
I assume that adding google/Firestore dependencies to the demo/Android app will also cause this build error. It will sync/build in Android Studio, but build error occurs only when the app is run.

Expected behavior
Through some form of gradle dependency exclusions, will I be able to get these packages to run in the same Android app?

Screenshots

I have tried using several combinations of package exclusions, including fully excluding com.google.protobuf from both Firestore and Capillary and implementing either separately:

    implementation('com.google.protobuf:protobuf-java:3.4.0')
    //{OR}
    //implementation('com.google.protobuf:protobuf-lite:3.0.1')

    implementation('com.google.firebase:firebase-firestore:18.2.0', {
        exclude group: 'com.google.protobuf', module: 'protobuf-lite'
    })


    implementation('com.google.capillary:lib-android:1.0.0', {
        exclude group: 'com.google.protobuf', module: 'protobuf-java'
    })

Resources are closed incorrectly

The outputStream may throw an exception before the resource is closed,you should use try-catch-finally or try-with-resource to close the resource.
Connection.getinputstream () and connection.geterrorstream () are not closed.

capillary/demo/server/src/main/java/com/google/capillary/demo/server/FcmSender.java

Lines 93 to 108 in 7dda356

	HttpURLConnection connection = getConnection();
	connection.setDoOutput(true);
	DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream());
	outputStream.writeBytes(requestJson.toString());
	outputStream.flush();
	outputStream.close();
	int responseCode = connection.getResponseCode();
	if (responseCode == 200) {
	String response = inputstreamToString(connection.getInputStream());
	logger.info("Message sent to Firebase for delivery, response:");
	logger.info(response);
	} else {
	logger.info("Unable to send message to Firebase:");
	String response = inputstreamToString(connection.getErrorStream());
	logger.info(response);

RSA + ECDSA allows an attacker to claim other ciphertexts as their own

I noticed something weird about the RSA+ECDSA mode, but I am not sure what the threat model for the library is so I'm not sure if it would be considered an attack.

I figured it would be most sensible not to describe it in a public issue just in case it turns out to be unintended behaviour, but there is no other reporting mechanism listed in the README. What's the right approach here?

Is possible to setup server on PHP ?

Is the capillary available to Java-based application servers ?
We need to setup the server on PHP. Is this possible ?

rfc8290 vs rfc8291

your page has a typo, referencing rfc8290 instead of 8291.

I admit, it would be cool if more messaging backplanes did do fair queuing and load shedding, (see for example what uber did: https://eng.uber.com/qalm/ ) but that isn't what you were trying to reference in the text. :)

There is a vulnerability in Protocol Buffers 0.8.3,upgrade recommended

capillary/lib/build.gradle

Line 3 in 7dda356

classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.3'

CVE-2015-5237

Recommended upgrade version：
0.8.13

Could not get unknown property 'bintray.user' for project ':lib' of type org.gradle.api.Project

Executing gradlew within the capillary directory gradle fails with the following error:

D:\capillary>gradlew tasks

FAILURE: Build failed with an exception.

* Where:
Script 'D:\capillary\lib\publish.gradle' line: 56

* What went wrong:
A problem occurred evaluating script.
> Could not get unknown property 'bintray.user' for project ':lib' of type org.gradle.api.Project.

Steps to reproduce

git clone https://github.com/google/capillary.git
cd capillary
gradlew tasks

Environment

Windows10, Oracle Java 9 64bit

Security Policy violation Binary Artifacts

This issue was automatically created by Allstar.

Security Policy Violation
Project is out of compliance with Binary Artifacts policy: binaries present in source code

Rule Description
Binary Artifacts are an increased security risk in your repository. Binary artifacts cannot be reviewed, allowing the introduction of possibly obsolete or maliciously subverted executables. For more information see the Security Scorecards Documentation for Binary Artifacts.

Remediation Steps
To remediate, remove the generated executable artifacts from the repository.

Artifacts Found

• gradle/wrapper/gradle-wrapper.jar

Additional Information
This policy is drawn from Security Scorecards, which is a tool that scores a project's adherence to security best practices. You may wish to run a Scorecards scan directly on this repository for more details.

---

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This issue will auto resolve when the policy is in compliance.

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