Add no-auth helper

lib/src/main/java/com/kirkbushman/araw/RedditClient.kt

@@ -11,6 +11,7 @@ import com.kirkbushman.araw.clients.WikisClient
 import com.kirkbushman.araw.models.Me
 import com.kirkbushman.araw.utils.Utils.buildRetrofit
 import com.kirkbushman.auth.models.bearers.TokenBearer
+import com.kirkbushman.auth.models.enums.AuthType
 import retrofit2.Retrofit
 
 class RedditClient @JvmOverloads constructor(
@@ -68,6 +69,8 @@ class RedditClient @JvmOverloads constructor(
     }
 
     private fun getHeaderMap(): Map<String, String> {
+        if (bearer.getAuthType() == AuthType.NONE)
+            return emptyMap()
         return mapOf("Authorization" to "bearer ".plus(bearer.getAccessToken()))
     }
 }

lib/src/main/java/com/kirkbushman/araw/helpers/NoAuthHelper.kt

@@ -0,0 +1,48 @@
+package com.kirkbushman.araw.helpers
+
+import com.kirkbushman.araw.RedditClient
+import com.kirkbushman.araw.RedditClient.Companion.getRetrofit
+import com.kirkbushman.auth.RedditAuth
+import com.kirkbushman.auth.managers.StorageManager
+import com.kirkbushman.auth.models.Token
+import com.kirkbushman.auth.models.bearers.TokenBearer
+import com.kirkbushman.auth.models.creds.UserlessCredentials
+import com.kirkbushman.auth.models.enums.AuthType
+import com.kirkbushman.auth.utils.Utils.buildDefaultClient
+
+class NoAuthHelper(logging: Boolean, disableLegacyEncoding: Boolean) :
+    AuthHelper(logging, disableLegacyEncoding) {
+    private val tokenBearer: TokenBearer
+    private val storageManager: StorageManager
+
+    init {
+        storageManager = object : StorageManager {
+            override fun isAuthed(): Boolean = true
+            override fun authType(): AuthType = AuthType.NONE
+            override fun hasToken(): Boolean = false
+            override fun getToken(): Token? = null
+            override fun clearAll() = Unit
+            override fun saveToken(token: Token, authType: AuthType): Unit =
+                throw IllegalStateException("NoAuth doesn't use tokens")
+        }
+        tokenBearer = object : TokenBearer(storageManager) {
+            override fun renewToken(token: Token): Token? = token
+            override fun revokeToken(token: Token): Boolean = false
+        }
+    }
+
+    override val auth: RedditAuth
+        get() {
+            val client = buildDefaultClient(getRetrofit(logging), logging)
+            val cred = UserlessCredentials("", "DO_NOT_TRACK_THIS_DEVICE")
+            return object : RedditAuth(client, cred, storageManager, storageManager.authType()) {
+                override fun renewToken(token: Token): Token? = tokenBearer.renewToken(token)
+                override fun revokeToken(token: Token): Boolean = tokenBearer.revokeToken(token)
+                override fun retrieveSavedBearer(): TokenBearer? = tokenBearer
+                override fun fetchToken(): Token? = tokenBearer.getToken()
+            }
+        }
+
+    override fun getRedditClient(): RedditClient? =
+        RedditClient(tokenBearer, disableLegacyEncoding, logging)
+}