Re-initialise the client to access the cloud when credentials changes

Fixes #395

data/src/main/java/org/cryptomator/data/cloud/dropbox/DropboxClientFactory.kt

@@ -56,5 +56,9 @@ class DropboxClientFactory {
 			return HttpLoggingInterceptor(logger, context)
 		}
 
+		fun logout() {
+			instance = null
+		}
+
 	}
 }

data/src/main/java/org/cryptomator/data/cloud/dropbox/DropboxCloudContentRepository.kt

@@ -203,7 +203,7 @@ internal class DropboxCloudContentRepository(private val cloud: DropboxCloud, co
 
 		@Throws(BackendException::class)
 		override fun logout(cloud: DropboxCloud) {
-			// empty
+			this.cloud.logout()
 		}
 
 	}

data/src/main/java/org/cryptomator/data/cloud/dropbox/DropboxImpl.kt

@@ -372,6 +372,10 @@ internal class DropboxImpl(cloud: DropboxCloud, context: Context) {
 		return currentAccount.name.displayName
 	}
 
+	fun logout() {
+		DropboxClientFactory.logout()
+	}
+
 	companion object {
 
 		private const val CHUNKED_UPLOAD_CHUNK_SIZE = 8L shl 20

data/src/main/java/org/cryptomator/data/cloud/onedrive/OnedriveClientFactory.kt

@@ -59,5 +59,10 @@ class OnedriveClientFactory private constructor() {
 
 			return HttpLoggingInterceptor(logger, context)
 		}
+
+		@Synchronized
+		fun logout() {
+			instance = null
+		}
 	}
 }

data/src/main/java/org/cryptomator/data/cloud/onedrive/OnedriveImpl.kt

@@ -481,6 +481,8 @@ internal class OnedriveImpl(cloud: OnedriveCloud, context: Context, nodeInfoCach
 		} catch (e: ExecutionException) {
 			throw FatalBackendException(e)
 		}
+
+		OnedriveClientFactory.logout()
 	}
 
 	companion object {

data/src/main/java/org/cryptomator/data/cloud/pcloud/PCloudClientFactory.kt

@@ -53,5 +53,10 @@ class PCloudClientFactory {
 
 			return HttpLoggingInterceptor(logger, context)
 		}
+
+		@Synchronized
+		fun logout() {
+			instance = null
+		}
 	}
 }

data/src/main/java/org/cryptomator/data/cloud/pcloud/PCloudContentRepository.kt

@@ -171,7 +171,7 @@ internal class PCloudContentRepository(private val cloud: PCloud, context: Conte
 
 		@Throws(BackendException::class)
 		override fun logout(cloud: PCloud) {
-			// empty
+			this.cloud.logout()
 		}
 
 	}

data/src/main/java/org/cryptomator/data/cloud/pcloud/PCloudImpl.kt

@@ -359,6 +359,10 @@ internal class PCloudImpl(context: Context, cloud: PCloud) {
 		}
 	}
 
+	fun logout() {
+		PCloudClientFactory.logout()
+	}
+
 	init {
 		if (cloud.accessToken() == null) {
 			throw NoAuthenticationProvidedException(cloud)

data/src/main/java/org/cryptomator/data/cloud/s3/S3ClientFactory.kt

@@ -85,5 +85,10 @@ class S3ClientFactory private constructor() {
 			val activeNetworkInfo = connectivityManager.activeNetworkInfo
 			return activeNetworkInfo != null && activeNetworkInfo.isConnected
 		}
+
+		@Synchronized
+		fun logout() {
+			instance = null
+		}
 	}
 }

data/src/main/java/org/cryptomator/data/cloud/s3/S3CloudContentRepository.kt

@@ -169,7 +169,7 @@ internal class S3CloudContentRepository(private val cloud: S3Cloud, context: Con
 
 		@Throws(BackendException::class)
 		override fun logout(cloud: S3Cloud) {
-			// empty
+			this.cloud.logout()
 		}
 
 	}

data/src/main/java/org/cryptomator/data/cloud/s3/S3Impl.kt

@@ -366,6 +366,10 @@ internal class S3Impl(context: Context, cloud: S3Cloud) {
 			}
 	}
 
+	fun logout() {
+		S3ClientFactory.logout()
+	}
+
 	companion object {
 
 		private const val DELIMITER = "/"

data/src/main/java/org/cryptomator/data/cloud/webdav/network/WebDavCompatibleHttpClient.kt

@@ -110,12 +110,11 @@ internal class WebDavCompatibleHttpClient(cloud: WebDavCloud, context: Context)
 			val credentials = Credentials(webDavCloud.username(), decryptPassword(context, webDavCloud.password()))
 			val basicAuthenticator = BasicAuthenticator(credentials, StandardCharsets.UTF_8)
 			val digestAuthenticator = DigestAuthenticator(credentials)
-			var result: Authenticator = DispatchingAuthenticator.Builder() //
+			val authenticator = DispatchingAuthenticator.Builder() //
 				.with("digest", digestAuthenticator) //
 				.with("basic", basicAuthenticator) //
 				.build()
-			result = CachingAuthenticatorDecorator(result, authCache)
-			return result
+			return CachingAuthenticatorDecorator(authenticator, authCache)
 		}
 
 		@Throws(UnableToDecryptWebdavPasswordException::class)

data/src/notFoss/java/org/cryptomator/data/cloud/googledrive/GoogleDriveClientFactory.kt

@@ -61,5 +61,9 @@ class GoogleDriveClientFactory internal constructor() {
 				}
 				.build()
 		}
+
+		fun invalidateClient() {
+			instance = null
+		}
 	}
 }

data/src/notFoss/java/org/cryptomator/data/cloud/googledrive/GoogleDriveCloudContentRepository.kt

@@ -188,7 +188,7 @@ internal class GoogleDriveCloudContentRepository(context: Context, private val c
 
 		@Throws(BackendException::class)
 		override fun logout(cloud: GoogleDriveCloud) {
-			// empty
+			impl.logout()
 		}
 
 	}

data/src/notFoss/java/org/cryptomator/data/cloud/googledrive/GoogleDriveImpl.kt

@@ -382,6 +382,10 @@ internal class GoogleDriveImpl(context: Context, googleDriveCloud: GoogleDriveCl
 		return about.user.displayName
 	}
 
+	fun logout() {
+		GoogleDriveClientFactory.invalidateClient()
+	}
+
 	companion object {
 
 		private const val STATUS_REQUEST_RANGE_NOT_SATISFIABLE = 416