diff options
Diffstat (limited to 'plugins/omemo')
| -rw-r--r-- | plugins/omemo/src/file_transfer/file_decryptor.vala | 62 | ||||
| -rw-r--r-- | plugins/omemo/src/logic/manager.vala | 12 | ||||
| -rw-r--r-- | plugins/omemo/src/ui/util.vala | 6 |
3 files changed, 43 insertions, 37 deletions
diff --git a/plugins/omemo/src/file_transfer/file_decryptor.vala b/plugins/omemo/src/file_transfer/file_decryptor.vala index 6998fef2..bc6f8592 100644 --- a/plugins/omemo/src/file_transfer/file_decryptor.vala +++ b/plugins/omemo/src/file_transfer/file_decryptor.vala @@ -38,36 +38,40 @@ public class OmemoFileDecryptor : FileDecryptor, Object { return this.url_regex.match(http_file_receive.url) || (receive_data as OmemoHttpFileReceiveData) != null; } - public async InputStream decrypt_file(InputStream encrypted_stream, Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) { - OmemoHttpFileReceiveData? omemo_http_receive_data = receive_data as OmemoHttpFileReceiveData; - if (omemo_http_receive_data == null) assert(false); - - // Decode IV and key - MatchInfo match_info; - this.url_regex.match(omemo_http_receive_data.original_url, 0, out match_info); - uint8[] iv_and_key = hex_to_bin(match_info.fetch(2).up()); - uint8[] iv, key; - if (iv_and_key.length == 44) { - iv = iv_and_key[0:12]; - key = iv_and_key[12:44]; - } else { - iv = iv_and_key[0:16]; - key = iv_and_key[16:48]; + public async InputStream decrypt_file(InputStream encrypted_stream, Conversation conversation, FileTransfer file_transfer, FileReceiveData receive_data) throws FileReceiveError { + try { + OmemoHttpFileReceiveData? omemo_http_receive_data = receive_data as OmemoHttpFileReceiveData; + if (omemo_http_receive_data == null) assert(false); + + // Decode IV and key + MatchInfo match_info; + this.url_regex.match(omemo_http_receive_data.original_url, 0, out match_info); + uint8[] iv_and_key = hex_to_bin(match_info.fetch(2).up()); + uint8[] iv, key; + if (iv_and_key.length == 44) { + iv = iv_and_key[0:12]; + key = iv_and_key[12:44]; + } else { + iv = iv_and_key[0:16]; + key = iv_and_key[16:48]; + } + + // Read data + uint8[] buf = new uint8[256]; + Array<uint8> data = new Array<uint8>(false, true, 0); + size_t len = -1; + do { + len = yield encrypted_stream.read_async(buf); + data.append_vals(buf, (uint) len); + } while(len > 0); + + // Decrypt + uint8[] cleartext = Signal.aes_decrypt(Cipher.AES_GCM_NOPADDING, key, iv, data.data); + file_transfer.encryption = Encryption.OMEMO; + return new MemoryInputStream.from_data(cleartext); + } catch (Error e) { + throw new FileReceiveError.DECRYPTION_FAILED("OMEMO file decryption error: %s".printf(e.message)); } - - // Read data - uint8[] buf = new uint8[256]; - Array<uint8> data = new Array<uint8>(false, true, 0); - size_t len = -1; - do { - len = yield encrypted_stream.read_async(buf); - data.append_vals(buf, (uint) len); - } while(len > 0); - - // Decrypt - uint8[] cleartext = Signal.aes_decrypt(Cipher.AES_GCM_NOPADDING, key, iv, data.data); - file_transfer.encryption = Encryption.OMEMO; - return new MemoryInputStream.from_data(cleartext); } private uint8[] hex_to_bin(string hex) { diff --git a/plugins/omemo/src/logic/manager.vala b/plugins/omemo/src/logic/manager.vala index a71dfd9d..53e02e37 100644 --- a/plugins/omemo/src/logic/manager.vala +++ b/plugins/omemo/src/logic/manager.vala @@ -326,22 +326,22 @@ public class Manager : StreamInteractionModule, Object { store.identity_key_store.local_registration_id = Random.int_range(1, int32.MAX); Signal.ECKeyPair key_pair = Plugin.get_context().generate_key_pair(); - store.identity_key_store.identity_key_private = key_pair.private.serialize(); - store.identity_key_store.identity_key_public = key_pair.public.serialize(); + store.identity_key_store.identity_key_private = new Bytes(key_pair.private.serialize()); + store.identity_key_store.identity_key_public = new Bytes(key_pair.public.serialize()); identity_id = (int) db.identity.insert().or("REPLACE") .value(db.identity.account_id, account.id) .value(db.identity.device_id, (int) store.local_registration_id) - .value(db.identity.identity_key_private_base64, Base64.encode(store.identity_key_store.identity_key_private)) - .value(db.identity.identity_key_public_base64, Base64.encode(store.identity_key_store.identity_key_public)) + .value(db.identity.identity_key_private_base64, Base64.encode(store.identity_key_store.identity_key_private.get_data())) + .value(db.identity.identity_key_public_base64, Base64.encode(store.identity_key_store.identity_key_public.get_data())) .perform(); } catch (Error e) { // Ignore error } } else { store.identity_key_store.local_registration_id = ((!)row)[db.identity.device_id]; - store.identity_key_store.identity_key_private = Base64.decode(((!)row)[db.identity.identity_key_private_base64]); - store.identity_key_store.identity_key_public = Base64.decode(((!)row)[db.identity.identity_key_public_base64]); + store.identity_key_store.identity_key_private = new Bytes(Base64.decode(((!)row)[db.identity.identity_key_private_base64])); + store.identity_key_store.identity_key_public = new Bytes(Base64.decode(((!)row)[db.identity.identity_key_public_base64])); identity_id = ((!)row)[db.identity.id]; } diff --git a/plugins/omemo/src/ui/util.vala b/plugins/omemo/src/ui/util.vala index 88d30b3b..cf61ed82 100644 --- a/plugins/omemo/src/ui/util.vala +++ b/plugins/omemo/src/ui/util.vala @@ -1,3 +1,5 @@ +using Xmpp.Util; + namespace Dino.Plugins.Omemo { public static string fingerprint_from_base64(string b64) { @@ -19,7 +21,7 @@ public static string fingerprint_markup(string s) { for (int i = 0; i < s.length; i += 4) { string four_chars = s.substring(i, 4).down(); - int raw = (int) four_chars.to_long(null, 16); + int raw = (int) from_hex(four_chars); uint8[] bytes = {(uint8) ((raw >> 8) & 0xff - 128), (uint8) (raw & 0xff - 128)}; Checksum checksum = new Checksum(ChecksumType.SHA1); @@ -57,4 +59,4 @@ public static string fingerprint_markup(string s) { return "<span font_family='monospace' font='8'>" + markup + "</span>"; } -}
\ No newline at end of file +} |