diff options
Diffstat (limited to 'src/main/java/eu/siacs/conversations/utils/FileUtils.java')
-rw-r--r-- | src/main/java/eu/siacs/conversations/utils/FileUtils.java | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/utils/FileUtils.java b/src/main/java/eu/siacs/conversations/utils/FileUtils.java index 1f2a71ca..18014894 100644 --- a/src/main/java/eu/siacs/conversations/utils/FileUtils.java +++ b/src/main/java/eu/siacs/conversations/utils/FileUtils.java @@ -17,6 +17,8 @@ import java.util.List; import de.thedevstack.conversationsplus.ConversationsPlusApplication; +import eu.siacs.conversations.entities.Transferable; + public final class FileUtils { /** @@ -160,6 +162,27 @@ public final class FileUtils { return "com.android.providers.media.documents".equals(uri.getAuthority()); } + public static String getRelevantExtension(String path) { + if (path == null || path.isEmpty()) { + return null; + } + + String filename = path.substring(path.lastIndexOf('/') + 1).toLowerCase(); + + final String lastPart = FileUtils.getLastExtension(filename); + + if (!lastPart.isEmpty()) { + // we want the real file extension, not the crypto one + final String secondToLastPart = FileUtils.getSecondToLastExtension(filename); + if (!secondToLastPart.isEmpty() && Transferable.VALID_CRYPTO_EXTENSIONS.contains(lastPart)) { + return secondToLastPart; + } else { + return lastPart; + } + } + return null; + } + /** * @param filename The filename to extract extension from * @return last extension or empty string |