Reorganize and group modules
This commit is contained in:
MM20
@@ -0,0 +1,85 @@
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package de.mm20.launcher2.nextcloud
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import android.app.Activity
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import android.os.Bundle
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import android.view.LayoutInflater
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import android.webkit.WebResourceRequest
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import android.webkit.WebView
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import android.webkit.WebViewClient
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import androidx.appcompat.app.AppCompatActivity
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import androidx.lifecycle.lifecycleScope
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import de.mm20.launcher2.nextcloud.databinding.ActivityNextcloudLoginBinding
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import kotlinx.coroutines.*
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class LoginActivity : AppCompatActivity() {
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private val nextcloudClient = NextcloudApiHelper(this)
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private lateinit var binding: ActivityNextcloudLoginBinding
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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binding = ActivityNextcloudLoginBinding.inflate(LayoutInflater.from(this))
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setContentView(binding.root)
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binding.nextButton.setOnClickListener {
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binding.serverUrlInputLayout.error = null
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lifecycleScope.launch {
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var url = binding.serverUrlInput.text.toString()
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if (!(url.startsWith("http://") || url.startsWith("https://"))) {
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url = "https://$url"
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}
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if (url.isBlank()) {
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binding.serverUrlInputLayout.error = getString(R.string.nextcloud_server_url_empty)
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return@launch
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}
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if (nextcloudClient.checkNextcloudInstallation(url)) {
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openLoginPage(url)
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} else {
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binding.serverUrlInputLayout.error = getString(R.string.nextcloud_server_invalid_url)
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}
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}
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}
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}
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private fun openLoginPage(url: String) {
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val webView = WebView(this)
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webView.settings.userAgentString = getString(R.string.app_name)
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webView.webViewClient = object : WebViewClient() {
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override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
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if (request?.url?.scheme == "nc") {
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val path = request.url?.path?.trim('/') ?: run {
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setResult(0)
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finish()
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return false
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}
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val segments = path.split('&')
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var username: String? = null
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var token: String? = null
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var server: String? = null
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for (segment in segments) {
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when {
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segment.startsWith("server") -> server = segment.substringAfter(":")
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segment.startsWith("user") -> username = segment.substringAfter(":")
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segment.startsWith("password") -> token = segment.substringAfter(":")
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}
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}
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if (username != null && server != null && token != null) {
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nextcloudClient.setServer(server, username, token)
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}
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setResult(Activity.RESULT_OK)
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finish()
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return true
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}
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webView.loadUrl(request?.url?.toString() ?: "")
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return false
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}
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}
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webView.settings.javaScriptEnabled = true
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setContentView(webView)
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val headers = mapOf(
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"OCS-APIREQUEST" to "true"
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)
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webView.loadUrl("$url/index.php/login/flow", headers)
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}
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}
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@@ -0,0 +1,6 @@
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package de.mm20.launcher2.nextcloud
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data class NcUser(
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val displayName: String,
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val username: String
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)
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@@ -0,0 +1,204 @@
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package de.mm20.launcher2.nextcloud
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import android.app.Activity
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import android.content.Context
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import android.content.Intent
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import android.content.SharedPreferences
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import androidx.core.content.edit
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import androidx.security.crypto.EncryptedSharedPreferences
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import androidx.security.crypto.MasterKey
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import de.mm20.launcher2.webdav.WebDavApi
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import de.mm20.launcher2.webdav.WebDavFile
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.withContext
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import okhttp3.*
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import org.json.JSONObject
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import java.io.File
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import java.io.IOException
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class NextcloudApiHelper(val context: Context) {
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private val httpClient by lazy {
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OkHttpClient.Builder()
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.authenticator(object : Authenticator {
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override fun authenticate(route: Route?, response: Response): Request? {
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if (response.priorResponse?.priorResponse != null) return null
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return response.request
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.newBuilder()
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.addHeader("Authorization", getAuthorization() ?: return null)
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.build()
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}
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})
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.build()
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}
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private val preferences by lazy {
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createPreferences()
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}
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private fun createPreferences(catchErrors: Boolean = true): SharedPreferences {
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try {
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val masterKey =
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MasterKey.Builder(context).setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build()
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return EncryptedSharedPreferences.create(
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context,
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"nextcloud",
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masterKey,
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EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
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EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
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)
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} catch (e: IOException) {
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if (!catchErrors) throw e
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File(context.filesDir, "../shared_prefs/nextcloud.xml").delete()
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return createPreferences(false)
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}
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}
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fun getLoginIntent(): Intent {
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return Intent(context, LoginActivity::class.java)
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}
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fun login(activity: Activity) {
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activity.startActivity(getLoginIntent())
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}
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suspend fun checkNextcloudInstallation(url: String): Boolean {
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var url = url
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if (!url.startsWith("http://") && !url.startsWith("https://")) {
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url = "https://$url"
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}
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val request = Request.Builder()
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.url("$url/remote.php/dav")
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.build()
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val response = runCatching {
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withContext(Dispatchers.IO) {
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httpClient.newCall(request).execute()
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}
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}.getOrNull() ?: return false
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return response.code == 200 || response.code == 401
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}
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suspend fun getLoggedInUser(): NcUser? {
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val server = getServer()
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val username = getUserName()
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val token = getToken()
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if (server == null || username == null || token == null) {
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return null
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}
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val displayName = getDisplayName() ?: return null
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return NcUser(
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displayName,
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username
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)
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}
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/**
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* Returns the user's display name or user name if the user is logged in and their token has
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* not been revoked,
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* returns null if they are not logged in.
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*/
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private suspend fun getDisplayName(): String? {
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val displayname = preferences.getString("displayname", null)
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if (displayname != null) {
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return displayname
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}
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val server = getServer() ?: return null
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val request = Request.Builder()
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.addHeader("OCS-APIRequest", "true")
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.url("$server/ocs/v1.php/cloud/user?format=json")
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.build()
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val response = runCatching {
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withContext(Dispatchers.IO) {
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httpClient.newCall(request).execute()
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}
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}.getOrNull() ?: return getUserName()
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if (response.code != 200) {
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logout()
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return null
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}
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val body = response.body ?: return getUserName()
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return withContext(Dispatchers.IO) {
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val json = JSONObject(body.string())
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val name = json.optJSONObject("ocs")
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?.optJSONObject("data")
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?.optString("display-name")
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preferences.edit {
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putString("displayname", name)
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}
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return@withContext name
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?: getUserName()
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}
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}
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private fun getAuthorization(): String? {
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return Credentials.basic(getUserName() ?: return null, getToken() ?: return null)
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}
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fun getServer(): String? {
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return preferences.getString("server", null)
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}
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fun getUserName(): String? {
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return preferences.getString("username", null)
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}
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private fun getToken(): String? {
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return preferences.getString("token", null)
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}
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internal fun setServer(server: String, username: String, token: String) {
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preferences.edit {
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putString("server", server)
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putString("username", username)
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putString("token", token)
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}
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}
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suspend fun logout() {
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val server = getServer()
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val username = getUserName()
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val token = getToken()
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if (server == null || username == null || token == null) return
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val request = Request.Builder()
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.addHeader("OCS-APIREQUEST", "true")
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.delete()
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.url("$server/ocs/v2.php/core/apppassword")
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.build()
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withContext(Dispatchers.IO) {
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val response = httpClient.newCall(request).execute()
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response
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}
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preferences.edit {
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putString("server", null)
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putString("username", null)
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putString("token", null)
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putString("displayname", null)
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}
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}
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val files by lazy {
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FilesApi()
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}
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inner class FilesApi internal constructor() {
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suspend fun search(query: String): List<WebDavFile> {
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val server = getServer() ?: return emptyList()
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val username = getUserName() ?: return emptyList()
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return WebDavApi.search("$server/remote.php/dav/", username, query, httpClient)
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}
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}
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}
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