Allow for anonymous connection if server supports it. Should provide basic support for #14.

app/src/main/java/com/github/apognu/otter/activities/LoginActivity.kt

@@ -3,6 +3,7 @@ package com.github.apognu.otter.activities
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.view.View
 import androidx.appcompat.app.AppCompatActivity
 import com.github.apognu.otter.R
 import com.github.apognu.otter.fragments.LoginDialog
@@ -30,6 +31,16 @@ class LoginActivity : AppCompatActivity() {
   override fun onResume() {
     super.onResume()
 
+    anonymous?.setOnCheckedChangeListener { _, isChecked ->
+      val state = when (isChecked) {
+        true -> View.GONE
+        false -> View.VISIBLE
+      }
+
+      username_field.visibility = state
+      password_field.visibility = state
+    }
+
     login?.setOnClickListener {
       var hostname = hostname.text.toString().trim()
       val username = username.text.toString()
@@ -55,58 +66,106 @@ class LoginActivity : AppCompatActivity() {
 
       hostname_field.error = ""
 
-      val body = mapOf(
-        "username" to username,
-        "password" to password
-      ).toList()
-
-      val dialog = LoginDialog().apply {
-        show(supportFragmentManager, "LoginDialog")
+      when (anonymous.isChecked) {
+        false -> authedLogin(hostname, username, password)
+        true -> anonymousLogin(hostname)
       }
+    }
+  }
+
+  private fun authedLogin(hostname: String, username: String, password: String) {
+    val body = mapOf(
+      "username" to username,
+      "password" to password
+    ).toList()
+
+    val dialog = LoginDialog().apply {
+      show(supportFragmentManager, "LoginDialog")
+    }
 
-      GlobalScope.launch(Main) {
-        try {
-          val (_, response, result) = Fuel.post("$hostname/api/v1/token/", body)
-            .awaitObjectResponseResult(gsonDeserializerOf(FwCredentials::class.java))
-
-          when (result) {
-            is Result.Success -> {
-              PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).apply {
-                setString("hostname", hostname)
-                setString("username", username)
-                setString("password", password)
-                setString("access_token", result.get().token)
-              }
-
-              dialog.dismiss()
-              startActivity(Intent(this@LoginActivity, MainActivity::class.java))
-              finish()
+    GlobalScope.launch(Main) {
+      try {
+        val (_, response, result) = Fuel.post("$hostname/api/v1/token/", body)
+          .awaitObjectResponseResult(gsonDeserializerOf(FwCredentials::class.java))
+
+        when (result) {
+          is Result.Success -> {
+            PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).apply {
+              setString("hostname", hostname)
+              setBoolean("anonymous", false)
+              setString("username", username)
+              setString("password", password)
+              setString("access_token", result.get().token)
             }
 
-            is Result.Failure -> {
-              dialog.dismiss()
+            dialog.dismiss()
+            startActivity(Intent(this@LoginActivity, MainActivity::class.java))
+            finish()
+          }
+
+          is Result.Failure -> {
+            dialog.dismiss()
 
-              val error = Gson().fromJson(String(response.data), FwCredentials::class.java)
+            val error = Gson().fromJson(String(response.data), FwCredentials::class.java)
 
-              hostname_field.error = null
-              username_field.error = null
+            hostname_field.error = null
+            username_field.error = null
 
-              if (error != null && error.non_field_errors.isNotEmpty()) {
-                username_field.error = error.non_field_errors[0]
-              } else {
-                hostname_field.error = result.error.localizedMessage
-              }
+            if (error != null && error.non_field_errors.isNotEmpty()) {
+              username_field.error = error.non_field_errors[0]
+            } else {
+              hostname_field.error = result.error.localizedMessage
             }
           }
-        } catch (e: Exception) {
-          dialog.dismiss()
+        }
+      } catch (e: Exception) {
+        dialog.dismiss()
 
-          val message =
-            if (e.message?.isEmpty() == true) getString(R.string.login_error_hostname)
-            else e.message
+        val message =
+          if (e.message?.isEmpty() == true) getString(R.string.login_error_hostname)
+          else e.message
 
-          hostname_field.error = message
+        hostname_field.error = message
+      }
+    }
+  }
+
+  private fun anonymousLogin(hostname: String) {
+    val dialog = LoginDialog().apply {
+      show(supportFragmentManager, "LoginDialog")
+    }
+
+    GlobalScope.launch(Main) {
+      try {
+        val (_, _, result) = Fuel.get("$hostname/api/v1/tracks/")
+          .awaitObjectResponseResult(gsonDeserializerOf(FwCredentials::class.java))
+
+        when (result) {
+          is Result.Success -> {
+            PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).apply {
+              setString("hostname", hostname)
+              setBoolean("anonymous", true)
+            }
+
+            dialog.dismiss()
+            startActivity(Intent(this@LoginActivity, MainActivity::class.java))
+            finish()
+          }
+
+          is Result.Failure -> {
+            dialog.dismiss()
+
+            hostname_field.error = result.error.localizedMessage
+          }
         }
+      } catch (e: Exception) {
+        dialog.dismiss()
+
+        val message =
+          if (e.message?.isEmpty() == true) getString(R.string.login_error_hostname)
+          else e.message
+
+        hostname_field.error = message
       }
     }
   }

app/src/main/java/com/github/apognu/otter/activities/SplashActivity.kt

@@ -5,13 +5,14 @@ import android.content.Intent
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import com.github.apognu.otter.utils.AppContext
+import com.github.apognu.otter.utils.Settings
 
 class SplashActivity : AppCompatActivity() {
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
 
     getSharedPreferences(AppContext.PREFS_CREDENTIALS, Context.MODE_PRIVATE).apply {
-      when (contains("access_token")) {
+      when (Settings.hasAccessToken() || Settings.isAnonymous()) {
         true -> Intent(this@SplashActivity, MainActivity::class.java).apply {
           flags = Intent.FLAG_ACTIVITY_NO_ANIMATION
 

app/src/main/java/com/github/apognu/otter/fragments/FunkwhaleFragment.kt

@@ -10,7 +10,6 @@ import androidx.recyclerview.widget.RecyclerView
 import com.github.apognu.otter.repositories.HttpUpstream
 import com.github.apognu.otter.repositories.Repository
 import com.github.apognu.otter.utils.Cache
-import com.github.apognu.otter.utils.log
 import com.github.apognu.otter.utils.untilNetwork
 import com.google.gson.Gson
 import kotlinx.android.synthetic.main.fragment_artists.*

app/src/main/java/com/github/apognu/otter/playback/QueueManager.kt

@@ -57,11 +57,11 @@ class QueueManager(val context: Context) {
   }
 
   private fun factory(): CacheDataSourceFactory {
-    val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
-
     val http = DefaultHttpDataSourceFactory(Util.getUserAgent(context, context.getString(R.string.app_name))).apply {
       defaultRequestProperties.apply {
-        set("Authorization", "Bearer $token")
+        if (!Settings.isAnonymous()) {
+          set("Authorization", "Bearer ${Settings.getAccessToken()}")
+        }
       }
     }
 

app/src/main/java/com/github/apognu/otter/repositories/FavoritesRepository.kt

@@ -7,7 +7,6 @@ import com.github.kittinunf.fuel.coroutines.awaitByteArrayResponseResult
 import com.github.kittinunf.fuel.gson.gsonDeserializerOf
 import com.google.gson.Gson
 import com.google.gson.reflect.TypeToken
-import com.preference.PowerPreference
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
@@ -26,13 +25,16 @@ class FavoritesRepository(override val context: Context?) : Repository<Track, Tr
   }
 
   fun addFavorite(id: Int) {
-    val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
     val body = mapOf("track" to id)
 
+    val request = Fuel.post(mustNormalizeUrl("/api/v1/favorites/tracks/")).apply {
+      if (!Settings.isAnonymous()) {
+        header("Authorization", "Bearer ${Settings.getAccessToken()}")
+      }
+    }
+
     GlobalScope.launch(IO) {
-      Fuel
-        .post(mustNormalizeUrl("/api/v1/favorites/tracks/"))
-        .header("Authorization", "Bearer $token")
+      request
         .header("Content-Type", "application/json")
         .body(Gson().toJson(body))
         .awaitByteArrayResponseResult()
@@ -40,13 +42,16 @@ class FavoritesRepository(override val context: Context?) : Repository<Track, Tr
   }
 
   fun deleteFavorite(id: Int) {
-    val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
     val body = mapOf("track" to id)
 
+    val request = Fuel.post(mustNormalizeUrl("/api/v1/favorites/tracks/remove/")).apply {
+      if (!Settings.isAnonymous()) {
+        request.header("Authorization", "Bearer ${Settings.getAccessToken()}")
+      }
+    }
+
     GlobalScope.launch(IO) {
-      Fuel
-        .post(mustNormalizeUrl("/api/v1/favorites/tracks/remove/"))
-        .header("Authorization", "Bearer $token")
+      request
         .header("Content-Type", "application/json")
         .body(Gson().toJson(body))
         .awaitByteArrayResponseResult()

app/src/main/java/com/github/apognu/otter/repositories/HttpUpstream.kt

@@ -9,7 +9,6 @@ import com.github.kittinunf.fuel.coroutines.awaitObjectResponseResult
 import com.github.kittinunf.fuel.coroutines.awaitObjectResult
 import com.github.kittinunf.result.Result
 import com.google.gson.Gson
-import com.preference.PowerPreference
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.collect
@@ -37,6 +36,8 @@ class HttpUpstream<D : Any, R : FunkwhaleResponse<D>>(val behavior: Behavior, pr
         .build()
         .toString()
 
+    log(offsetUrl)
+
     get(offsetUrl).fold(
       { response ->
         val data = response.getData()
@@ -65,12 +66,13 @@ class HttpUpstream<D : Any, R : FunkwhaleResponse<D>>(val behavior: Behavior, pr
   }
 
   suspend fun get(url: String): Result<R, FuelError> {
-    val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
+    val request = Fuel.get(mustNormalizeUrl(url)).apply {
+      if (!Settings.isAnonymous()) {
+        header("Authorization", "Bearer ${Settings.isAnonymous()}")
+      }
+    }
 
-    val (_, response, result) = Fuel
-      .get(mustNormalizeUrl(url))
-      .header("Authorization", "Bearer $token")
-      .awaitObjectResponseResult(GenericDeserializer<R>(type))
+    val (_, response, result) = request.awaitObjectResponseResult(GenericDeserializer<R>(type))
 
     if (response.statusCode == 401) {
       return retryGet(url)
@@ -81,12 +83,13 @@ class HttpUpstream<D : Any, R : FunkwhaleResponse<D>>(val behavior: Behavior, pr
 
   private suspend fun retryGet(url: String): Result<R, FuelError> {
     return if (HTTP.refresh()) {
-      val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
+      val request = Fuel.get(mustNormalizeUrl(url)).apply {
+        if (!Settings.isAnonymous()) {
+          header("Authorization", "Bearer ${Settings.isAnonymous()}")
+        }
+      }
 
-      Fuel
-        .get(mustNormalizeUrl(url))
-        .header("Authorization", "Bearer $token")
-        .awaitObjectResult(GenericDeserializer(type))
+      request.awaitObjectResult(GenericDeserializer(type))
     } else {
       Result.Failure(FuelError.wrap(RefreshError))
     }

app/src/main/java/com/github/apognu/otter/utils/Data.kt

@@ -36,12 +36,13 @@ object HTTP {
   }
 
   suspend inline fun <reified T : Any> get(url: String): Result<T, FuelError> {
-    val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
+    val request = Fuel.get(mustNormalizeUrl(url)).apply {
+      if (!Settings.isAnonymous()) {
+        header("Authorization", "Bearer ${Settings.getAccessToken()}")
+      }
+    }
 
-    val (_, response, result) = Fuel
-      .get(mustNormalizeUrl(url))
-      .header("Authorization", "Bearer $token")
-      .awaitObjectResponseResult(gsonDeserializerOf(T::class.java))
+    val (_, response, result) = request.awaitObjectResponseResult(gsonDeserializerOf(T::class.java))
 
     if (response.statusCode == 401) {
       return retryGet(url)
@@ -52,12 +53,13 @@ object HTTP {
 
   suspend inline fun <reified T : Any> retryGet(url: String): Result<T, FuelError> {
     return if (refresh()) {
-      val token = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token")
+      val request = Fuel.get(mustNormalizeUrl(url)).apply {
+        if (!Settings.isAnonymous()) {
+          header("Authorization", "Bearer ${Settings.getAccessToken()}")
+        }
+      }
 
-      Fuel
-        .get(mustNormalizeUrl(url))
-        .header("Authorization", "Bearer $token")
-        .awaitObjectResult(gsonDeserializerOf(T::class.java))
+      request.awaitObjectResult(gsonDeserializerOf(T::class.java))
     } else {
       Result.Failure(FuelError.wrap(RefreshError))
     }

app/src/main/java/com/github/apognu/otter/utils/Util.kt

@@ -48,4 +48,10 @@ fun toDurationString(seconds: Long): String {
   if (minutes > 0) ret.append(" ${minutes}m")
 
   return ret.toString()
+}
+
+object Settings {
+  fun hasAccessToken() = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).contains("access_token")
+  fun getAccessToken() = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getString("access_token", "")
+  fun isAnonymous() = PowerPreference.getFileByName(AppContext.PREFS_CREDENTIALS).getBoolean("anonymous", false)
 }

app/src/main/res/layout/activity_login.xml

@@ -49,6 +49,14 @@
 
     </com.google.android.material.textfield.TextInputLayout>
 
+    <com.google.android.material.checkbox.MaterialCheckBox
+      android:id="@+id/anonymous"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:text="@string/login_anonymous"
+      android:buttonTint="@android:color/white"
+      android:textColor="@android:color/white"/>
+
     <com.google.android.material.textfield.TextInputLayout
       android:id="@+id/username_field"
       style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"

app/src/main/res/values-fr/strings.xml

@@ -4,6 +4,7 @@
 
   <string name="login_welcome">Veuillez saisir les détails de votre instance Funkwhale pour accéder à son contenu</string>
   <string name="login_hostname">Nom d\'hôte</string>
+  <string name="login_anonymous">Authentification anonyme</string>
   <string name="login_username">Nom d\'utilisateur</string>
   <string name="login_password">Mot de passe</string>
   <string name="login_submit">Se connecter</string>

app/src/main/res/values/strings.xml

@@ -4,6 +4,7 @@
 
   <string name="login_welcome">Please enter the details of your Funkwhale instance to access its content</string>
   <string name="login_hostname">Host name</string>
+  <string name="login_anonymous">Anonymous authentication</string>
   <string name="login_username">Username</string>
   <string name="login_password">Password</string>
   <string name="login_submit">Log in</string>