import org.signal.libsignal.protocol.InvalidMessageException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import org.whispersystems.signalservice.api.crypto.AttachmentCipherInputStream;
import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
public class AttachmentHelper {
- private final static Logger logger = LoggerFactory.getLogger(AttachmentHelper.class);
+ private static final Logger logger = LoggerFactory.getLogger(AttachmentHelper.class);
private final SignalDependencies dependencies;
private final AttachmentStore attachmentStore;
}
public List<SignalServiceAttachment> uploadAttachments(final List<String> attachments) throws AttachmentInvalidException, IOException {
- var attachmentStreams = AttachmentUtils.createAttachmentStreams(attachments);
+ final var attachmentStreams = createAttachmentStreams(attachments);
- // Upload attachments here, so we only upload once even for multiple recipients
- var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
- for (var attachmentStream : attachmentStreams) {
- attachmentPointers.add(uploadAttachment(attachmentStream));
+ try {
+ // Upload attachments here, so we only upload once even for multiple recipients
+ final var attachmentPointers = new ArrayList<SignalServiceAttachment>(attachmentStreams.size());
+ for (final var attachmentStream : attachmentStreams) {
+ attachmentPointers.add(uploadAttachment(attachmentStream));
+ }
+ return attachmentPointers;
+ } finally {
+ for (final var attachmentStream : attachmentStreams) {
+ attachmentStream.close();
+ }
+ }
+ }
+
+ private List<SignalServiceAttachmentStream> createAttachmentStreams(List<String> attachments) throws AttachmentInvalidException, IOException {
+ if (attachments == null) {
+ return null;
+ }
+ final var signalServiceAttachments = new ArrayList<SignalServiceAttachmentStream>(attachments.size());
+ for (var attachment : attachments) {
+ final var uploadSpec = dependencies.getMessageSender().getResumableUploadSpec();
+ signalServiceAttachments.add(AttachmentUtils.createAttachmentStream(attachment, uploadSpec));
}
- return attachmentPointers;
+ return signalServiceAttachments;
}
public SignalServiceAttachmentPointer uploadAttachment(String attachment) throws IOException, AttachmentInvalidException {
- var attachmentStream = AttachmentUtils.createAttachmentStream(attachment);
+ final var uploadSpec = dependencies.getMessageSender().getResumableUploadSpec();
+ var attachmentStream = AttachmentUtils.createAttachmentStream(attachment, uploadSpec);
return uploadAttachment(attachmentStream);
}
retrieveAttachment(attachment, input -> IOUtils.copyStream(input, outputStream));
}
- public void retrieveAttachment(
- SignalServiceAttachment attachment, AttachmentHandler consumer
- ) throws IOException {
+ public void retrieveAttachment(SignalServiceAttachment attachment, AttachmentHandler consumer) throws IOException {
if (attachment.isStream()) {
var input = attachment.asStream().getInputStream();
// don't close input stream here, it might be reused later (e.g. with contact sync messages ...)
}
private InputStream retrieveAttachmentAsStream(
- SignalServiceAttachmentPointer pointer, File tmpFile
+ SignalServiceAttachmentPointer pointer,
+ File tmpFile
) throws IOException {
+ if (pointer.getDigest().isEmpty()) {
+ throw new IOException("Attachment pointer has no digest.");
+ }
try {
return dependencies.getMessageReceiver()
- .retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
+ .retrieveAttachment(pointer,
+ tmpFile,
+ ServiceConfig.MAX_ATTACHMENT_SIZE,
+ AttachmentCipherInputStream.IntegrityCheck.forEncryptedDigest(pointer.getDigest().get()));
} catch (MissingConfigurationException | InvalidMessageException e) {
throw new IOException(e);
}