1 files changed, 28 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/entities/Transferable.java b/src/main/java/eu/siacs/conversations/entities/Transferable.java
new file mode 100644
index 00000000..2db6e3c9
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/entities/Transferable.java
@@ -0,0 +1,28 @@
+package eu.siacs.conversations.entities;
+
+public interface Transferable {
+
+	String[] VALID_IMAGE_EXTENSIONS = {"webp", "jpeg", "jpg", "png", "jpe"};
+	String[] VALID_CRYPTO_EXTENSIONS = {"pgp", "gpg", "otr"};
+	String[] WELL_KNOWN_EXTENSIONS = {"pdf","m4a"};
+
+	int STATUS_UNKNOWN = 0x200;
+	int STATUS_CHECKING = 0x201;
+	int STATUS_FAILED = 0x202;
+	int STATUS_OFFER = 0x203;
+	int STATUS_DOWNLOADING = 0x204;
+	int STATUS_DELETED = 0x205;
+	int STATUS_OFFER_CHECK_FILESIZE = 0x206;
+	int STATUS_UPLOADING = 0x207;
+
+
+	boolean start();
+
+	int getStatus();
+
+	long getFileSize();
+
+	int getProgress();
+
+	void cancel();
+}