44 lines
1.9 KiB
Vala
44 lines
1.9 KiB
Vala
using Dino.Entities;
|
|
|
|
namespace Dino.Plugins.OpenPgp {
|
|
|
|
public class PgpFileDecryptor : FileDecryptor, Object {
|
|
|
|
public FileReceiveData prepare_get_meta_info(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) {
|
|
return receive_data;
|
|
}
|
|
|
|
public FileMeta prepare_download_file(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) {
|
|
return file_meta;
|
|
}
|
|
|
|
public bool can_decrypt_file(Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) {
|
|
return file_transfer.file_name.has_suffix("pgp") || file_transfer.mime_type == "application/pgp-encrypted";
|
|
}
|
|
|
|
public async InputStream decrypt_file(InputStream encrypted_stream, Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) throws FileReceiveError {
|
|
try {
|
|
uint8[] buf = new uint8[256];
|
|
Array<uint8> data = new Array<uint8>(false, true, 0);
|
|
size_t len = -1;
|
|
do {
|
|
len = encrypted_stream.read(buf);
|
|
data.append_vals(buf, (uint) len);
|
|
} while(len > 0);
|
|
|
|
GPGHelper.DecryptedData clear_data = GPGHelper.decrypt_data(data.data);
|
|
file_transfer.encryption = Encryption.PGP;
|
|
if (clear_data.filename != null && clear_data.filename != "") {
|
|
file_transfer.file_name = clear_data.filename;
|
|
} else if (file_transfer.file_name.has_suffix(".pgp")) {
|
|
file_transfer.file_name = file_transfer.file_name.substring(0, file_transfer.file_name.length - 4);
|
|
}
|
|
return new MemoryInputStream.from_data(clear_data.data, GLib.free);
|
|
} catch (Error e) {
|
|
throw new FileReceiveError.DECRYPTION_FAILED("PGP file decrypt error: %s".printf(e.message));
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|