Reorganize and group modules

2022-12-13 17:37:26 +01:00
parent bac24baad2
commit 3f8880a90a
995 changed files with 501 additions and 298 deletions
@@ -0,0 +1,11 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application>
+        <activity
+            android:name="de.mm20.launcher2.nextcloud.LoginActivity"
+            android:label="@string/preference_category_services_nextcloud"
+            android:taskAffinity="de.mm20.launcher2.nextcloud"
+            android:theme="@style/NextcloudLoginTheme" />
+    </application>
+
+</manifest>
@@ -0,0 +1,85 @@
+package de.mm20.launcher2.nextcloud
+
+import android.app.Activity
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.webkit.WebResourceRequest
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.lifecycleScope
+import de.mm20.launcher2.nextcloud.databinding.ActivityNextcloudLoginBinding
+import kotlinx.coroutines.*
+
+class LoginActivity : AppCompatActivity() {
+
+    private val nextcloudClient = NextcloudApiHelper(this)
+
+    private lateinit var binding: ActivityNextcloudLoginBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityNextcloudLoginBinding.inflate(LayoutInflater.from(this))
+        setContentView(binding.root)
+        binding.nextButton.setOnClickListener {
+            binding.serverUrlInputLayout.error = null
+            lifecycleScope.launch {
+                var url = binding.serverUrlInput.text.toString()
+                if (!(url.startsWith("http://") || url.startsWith("https://"))) {
+                    url = "https://$url"
+                }
+                if (url.isBlank()) {
+                    binding.serverUrlInputLayout.error = getString(R.string.nextcloud_server_url_empty)
+                    return@launch
+                }
+                if (nextcloudClient.checkNextcloudInstallation(url)) {
+                    openLoginPage(url)
+                } else {
+                    binding.serverUrlInputLayout.error = getString(R.string.nextcloud_server_invalid_url)
+                }
+            }
+        }
+    }
+
+    private fun openLoginPage(url: String) {
+        val webView = WebView(this)
+        webView.settings.userAgentString = getString(R.string.app_name)
+        webView.webViewClient = object : WebViewClient() {
+            override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
+                if (request?.url?.scheme == "nc") {
+                    val path = request.url?.path?.trim('/') ?: run {
+                        setResult(0)
+                        finish()
+                        return false
+                    }
+                    val segments = path.split('&')
+                    var username: String? = null
+                    var token: String? = null
+                    var server: String? = null
+                    for (segment in segments) {
+                        when {
+                            segment.startsWith("server") -> server = segment.substringAfter(":")
+                            segment.startsWith("user") -> username = segment.substringAfter(":")
+                            segment.startsWith("password") -> token = segment.substringAfter(":")
+                        }
+                    }
+                    if (username != null && server != null && token != null) {
+                        nextcloudClient.setServer(server, username, token)
+                    }
+                    setResult(Activity.RESULT_OK)
+                    finish()
+                    return true
+                }
+                webView.loadUrl(request?.url?.toString() ?: "")
+                return false
+            }
+        }
+        webView.settings.javaScriptEnabled = true
+        setContentView(webView)
+        val headers = mapOf(
+            "OCS-APIREQUEST" to "true"
+        )
+        webView.loadUrl("$url/index.php/login/flow", headers)
+
+    }
+}
@@ -0,0 +1,6 @@
+package de.mm20.launcher2.nextcloud
+
+data class NcUser(
+        val displayName: String,
+        val username: String
+)
@@ -0,0 +1,204 @@
+package de.mm20.launcher2.nextcloud
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.content.SharedPreferences
+import androidx.core.content.edit
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKey
+import de.mm20.launcher2.webdav.WebDavApi
+import de.mm20.launcher2.webdav.WebDavFile
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.*
+import org.json.JSONObject
+import java.io.File
+import java.io.IOException
+
+class NextcloudApiHelper(val context: Context) {
+
+
+    private val httpClient by lazy {
+        OkHttpClient.Builder()
+            .authenticator(object : Authenticator {
+                override fun authenticate(route: Route?, response: Response): Request? {
+                    if (response.priorResponse?.priorResponse != null) return null
+                    return response.request
+                        .newBuilder()
+                        .addHeader("Authorization", getAuthorization() ?: return null)
+                        .build()
+                }
+
+            })
+            .build()
+    }
+
+    private val preferences by lazy {
+        createPreferences()
+    }
+
+    private fun createPreferences(catchErrors: Boolean = true): SharedPreferences {
+        try {
+            val masterKey =
+                MasterKey.Builder(context).setKeyScheme(MasterKey.KeyScheme.AES256_GCM).build()
+            return EncryptedSharedPreferences.create(
+                context,
+                "nextcloud",
+                masterKey,
+                EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+            )
+        } catch (e: IOException) {
+            if (!catchErrors) throw e
+            File(context.filesDir, "../shared_prefs/nextcloud.xml").delete()
+            return createPreferences(false)
+        }
+    }
+
+    fun getLoginIntent(): Intent {
+        return Intent(context, LoginActivity::class.java)
+    }
+
+    fun login(activity: Activity) {
+        activity.startActivity(getLoginIntent())
+    }
+
+
+    suspend fun checkNextcloudInstallation(url: String): Boolean {
+        var url = url
+        if (!url.startsWith("http://") && !url.startsWith("https://")) {
+            url = "https://$url"
+        }
+        val request = Request.Builder()
+            .url("$url/remote.php/dav")
+            .build()
+        val response = runCatching {
+            withContext(Dispatchers.IO) {
+                httpClient.newCall(request).execute()
+            }
+        }.getOrNull() ?: return false
+        return response.code == 200 || response.code == 401
+    }
+
+    suspend fun getLoggedInUser(): NcUser? {
+        val server = getServer()
+        val username = getUserName()
+        val token = getToken()
+
+        if (server == null || username == null || token == null) {
+            return null
+        }
+
+        val displayName = getDisplayName() ?: return null
+
+        return NcUser(
+            displayName,
+            username
+        )
+    }
+
+    /**
+     * Returns the user's display name or user name if the user is logged in and their token has
+     * not been revoked,
+     * returns null if they are not logged in.
+     */
+    private suspend fun getDisplayName(): String? {
+
+        val displayname = preferences.getString("displayname", null)
+        if (displayname != null) {
+            return displayname
+        }
+
+        val server = getServer() ?: return null
+
+        val request = Request.Builder()
+            .addHeader("OCS-APIRequest", "true")
+            .url("$server/ocs/v1.php/cloud/user?format=json")
+            .build()
+
+        val response = runCatching {
+            withContext(Dispatchers.IO) {
+                httpClient.newCall(request).execute()
+            }
+        }.getOrNull() ?: return getUserName()
+
+        if (response.code != 200) {
+            logout()
+            return null
+        }
+        val body = response.body ?: return getUserName()
+
+        return withContext(Dispatchers.IO) {
+            val json = JSONObject(body.string())
+            val name = json.optJSONObject("ocs")
+                ?.optJSONObject("data")
+                ?.optString("display-name")
+
+            preferences.edit {
+                putString("displayname", name)
+            }
+
+            return@withContext name
+                ?: getUserName()
+        }
+    }
+
+    private fun getAuthorization(): String? {
+        return Credentials.basic(getUserName() ?: return null, getToken() ?: return null)
+    }
+
+    fun getServer(): String? {
+        return preferences.getString("server", null)
+    }
+
+    fun getUserName(): String? {
+        return preferences.getString("username", null)
+    }
+
+    private fun getToken(): String? {
+        return preferences.getString("token", null)
+    }
+
+    internal fun setServer(server: String, username: String, token: String) {
+        preferences.edit {
+            putString("server", server)
+            putString("username", username)
+            putString("token", token)
+        }
+    }
+
+    suspend fun logout() {
+        val server = getServer()
+        val username = getUserName()
+        val token = getToken()
+        if (server == null || username == null || token == null) return
+        val request = Request.Builder()
+            .addHeader("OCS-APIREQUEST", "true")
+            .delete()
+            .url("$server/ocs/v2.php/core/apppassword")
+            .build()
+        withContext(Dispatchers.IO) {
+            val response = httpClient.newCall(request).execute()
+            response
+        }
+        preferences.edit {
+            putString("server", null)
+            putString("username", null)
+            putString("token", null)
+            putString("displayname", null)
+        }
+    }
+
+    val files by lazy {
+        FilesApi()
+    }
+
+    inner class FilesApi internal constructor() {
+        suspend fun search(query: String): List<WebDavFile> {
+            val server = getServer() ?: return emptyList()
+            val username = getUserName() ?: return emptyList()
+            return WebDavApi.search("$server/remote.php/dav/", username, query, httpClient)
+        }
+    }
+}
@@ -0,0 +1,13 @@
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@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:id="@+id/serverUrlView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:layout_margin="32dp"
+        android:orientation="vertical">
+
+        <ImageView
+            android:id="@+id/imageView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:srcCompat="@drawable/ic_nextcloud_logo" />
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/serverUrlInputLayout"
+            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
+            android:layout_marginBottom="32dp"
+            android:hint="@string/nextcloud_server_url"
+            app:helperTextEnabled="true">
+
+            <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/serverUrlInput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:inputType="textUri" />
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <Button
+            android:id="@+id/nextButton"
+            style="@style/Widget.MaterialComponents.Button"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/login_flow_continue" />
+
+    </LinearLayout>
+</FrameLayout>
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="NextcloudLoginTheme" parent="Theme.MaterialComponents.NoActionBar">
+        <item name="colorAccent">#0082c9</item>
+        <item name="colorPrimary">#0082c9</item>
+        <item name="colorPrimaryDark">@color/settings_color_primary_dark</item>
+    </style>
+</resources>
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="NextcloudLoginTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
+        <item name="android:windowLightStatusBar">true</item>
+        <item name="android:windowLightNavigationBar">true</item>
+        <item name="colorAccent">#0082c9</item>
+        <item name="colorPrimary">#0082c9</item>
+        <item name="colorPrimaryDark">@color/settings_color_primary_dark</item>
+        <item name="android:navigationBarColor">@color/settings_color_primary_dark</item>
+    </style>
+</resources>