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Issues with URLs with multiple dots in file. fixes #1373

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This commit is contained in:
Daniel Gultsch 2015-09-04 19:58:53 +02:00
parent 1848b46195
commit 7eb228d1a5
1 changed files with 15 additions and 7 deletions
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22
src/main/java/eu/siacs/conversations/entities/Message.java
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@ -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;
}