diff options
| -rw-r--r-- | src/main/java/eu/siacs/conversations/entities/Message.java | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/main/java/eu/siacs/conversations/entities/Message.java b/src/main/java/eu/siacs/conversations/entities/Message.java index 0eff99cf..bfb26446 100644 --- a/src/main/java/eu/siacs/conversations/entities/Message.java +++ b/src/main/java/eu/siacs/conversations/entities/Message.java @@ -506,17 +506,25 @@ public class Message extends AbstractEntity { private static String extractRelevantExtension(URL url) { String path = url.getPath(); + return extractRelevantExtension(path); + } + + private static String extractRelevantExtension(String path) { if (path == null || path.isEmpty()) { return null; } + String filename = path.substring(path.lastIndexOf('/') + 1).toLowerCase(); - String[] extensionParts = filename.split("\\."); - if (extensionParts.length == 2) { - return extensionParts[extensionParts.length - 1]; - } else if (extensionParts.length == 3 && Arrays - .asList(Transferable.VALID_CRYPTO_EXTENSIONS) - .contains(extensionParts[extensionParts.length - 1])) { - return extensionParts[extensionParts.length -2]; + int dotPosition = filename.lastIndexOf("."); + + if (dotPosition != -1) { + String extension = filename.substring(dotPosition + 1); + // we want the real file extension, not the crypto one + if (Arrays.asList(Transferable.VALID_CRYPTO_EXTENSIONS).contains(extension)) { + return extractRelevantExtension(path.substring(0,dotPosition)); + } else { + return extension; + } } return null; } |