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Use SSHJ for SSH public key authentication
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145 changes: 0 additions & 145 deletions
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app/src/main/java/com/zeapo/pwdstore/git/GitAsyncTask.java
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app/src/main/java/com/zeapo/pwdstore/git/GitAsyncTask.kt
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/* | ||
* Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved. | ||
* SPDX-License-Identifier: GPL-3.0-only | ||
*/ | ||
package com.zeapo.pwdstore.git | ||
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import android.app.Activity | ||
import android.app.ProgressDialog | ||
import android.content.Context | ||
import android.content.Intent | ||
import android.os.AsyncTask | ||
import com.github.ajalt.timberkt.e | ||
import com.zeapo.pwdstore.PasswordStore | ||
import com.zeapo.pwdstore.R | ||
import net.schmizz.sshj.userauth.UserAuthException | ||
import org.eclipse.jgit.api.CommitCommand | ||
import org.eclipse.jgit.api.GitCommand | ||
import org.eclipse.jgit.api.PullCommand | ||
import org.eclipse.jgit.api.PushCommand | ||
import org.eclipse.jgit.api.RebaseResult | ||
import org.eclipse.jgit.api.StatusCommand | ||
import org.eclipse.jgit.transport.RemoteRefUpdate | ||
import java.io.IOException | ||
import java.lang.ref.WeakReference | ||
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class GitAsyncTask( | ||
activity: Activity, | ||
private val refreshListOnEnd: Boolean, | ||
private val operation: GitOperation, | ||
private val finishWithResultOnEnd: Intent?) : AsyncTask<GitCommand<*>, Int, GitAsyncTask.Result>() { | ||
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private val activityWeakReference: WeakReference<Activity> = WeakReference(activity) | ||
private val activity: Activity? | ||
get() = activityWeakReference.get() | ||
private val context: Context = activity.applicationContext | ||
private val dialog = ProgressDialog(activity) | ||
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sealed class Result { | ||
object Ok : Result() | ||
data class Err(val err: Exception) : Result() | ||
} | ||
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override fun onPreExecute() { | ||
dialog.run { | ||
setMessage(activity!!.resources.getString(R.string.running_dialog_text)) | ||
setCancelable(false) | ||
show() | ||
} | ||
} | ||
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override fun doInBackground(vararg commands: GitCommand<*>): Result? { | ||
var nbChanges: Int? = null | ||
for (command in commands) { | ||
try { | ||
if (command is StatusCommand) { | ||
// in case we have changes, we want to keep track of it | ||
val status = command.call() | ||
nbChanges = status.changed.size + status.missing.size | ||
} else if (command is CommitCommand) { | ||
// the previous status will eventually be used to avoid a commit | ||
if (nbChanges == null || nbChanges > 0) command.call() | ||
} else if (command is PullCommand) { | ||
val result = command.call() | ||
val rr = result.rebaseResult | ||
if (rr.status === RebaseResult.Status.STOPPED) { | ||
return Result.Err(IOException(context.getString(R.string | ||
.git_pull_fail_error))) | ||
} | ||
} else if (command is PushCommand) { | ||
for (result in command.call()) { | ||
// Code imported (modified) from Gerrit PushOp, license Apache v2 | ||
for (rru in result.remoteUpdates) { | ||
val error = when (rru.status) { | ||
RemoteRefUpdate.Status.REJECTED_NONFASTFORWARD -> | ||
context.getString(R.string.git_push_nff_error) | ||
RemoteRefUpdate.Status.REJECTED_NODELETE, | ||
RemoteRefUpdate.Status.REJECTED_REMOTE_CHANGED, | ||
RemoteRefUpdate.Status.NON_EXISTING, | ||
RemoteRefUpdate.Status.NOT_ATTEMPTED -> | ||
(activity!!.getString(R.string.git_push_generic_error) + rru.status.name) | ||
RemoteRefUpdate.Status.REJECTED_OTHER_REASON -> { | ||
if | ||
("non-fast-forward" == rru.message) { | ||
context.getString(R.string.git_push_other_error) | ||
} else { | ||
(context.getString(R.string.git_push_generic_error) | ||
+ rru.message) | ||
} | ||
} | ||
else -> null | ||
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} | ||
if (error != null) | ||
Result.Err(IOException(error)) | ||
} | ||
} | ||
} else { | ||
command.call() | ||
} | ||
} catch (e: Exception) { | ||
return Result.Err(e) | ||
} | ||
} | ||
return Result.Ok | ||
} | ||
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private fun rootCauseException(e: Exception): Exception { | ||
var rootCause = e | ||
// JGit's TransportException hides the more helpful SSHJ exceptions. | ||
// Also, SSHJ's UserAuthException about exhausting available authentication methods hides | ||
// more useful exceptions. | ||
while ((rootCause is org.eclipse.jgit.errors.TransportException || | ||
rootCause is org.eclipse.jgit.api.errors.TransportException || | ||
(rootCause is UserAuthException && | ||
rootCause.message == "Exhausted available authentication methods"))) { | ||
rootCause = rootCause.cause as? Exception ?: break | ||
} | ||
return rootCause | ||
} | ||
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override fun onPostExecute(maybeResult: Result?) { | ||
dialog.dismiss() | ||
when (val result = maybeResult ?: Result.Err(IOException("Unexpected error"))) { | ||
is Result.Err -> { | ||
e(result.err) | ||
operation.onError(rootCauseException(result.err)) | ||
} | ||
is Result.Ok -> { | ||
operation.onSuccess() | ||
if (finishWithResultOnEnd != null) { | ||
activity?.setResult(Activity.RESULT_OK, finishWithResultOnEnd) | ||
activity?.finish() | ||
} | ||
if (refreshListOnEnd) { | ||
(activity as? PasswordStore)?.resetPasswordList() | ||
} | ||
} | ||
} | ||
} | ||
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} |
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