diff options
Diffstat (limited to '')
5 files changed, 33 insertions, 16 deletions
diff --git a/src/eu/siacs/conversations/entities/DownloadableFile.java b/src/eu/siacs/conversations/entities/DownloadableFile.java index 50b00fb87..1605c75b4 100644 --- a/src/eu/siacs/conversations/entities/DownloadableFile.java +++ b/src/eu/siacs/conversations/entities/DownloadableFile.java @@ -19,7 +19,6 @@ import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import eu.siacs.conversations.Config; -import eu.siacs.conversations.utils.CryptoHelper; import android.util.Log; public class DownloadableFile extends File { @@ -43,7 +42,11 @@ public class DownloadableFile extends File { public long getExpectedSize() { if (this.aeskey != null) { - return (this.expectedSize / 16 + 1) * 16; + if (this.expectedSize == 0) { + return 0; + } else { + return (this.expectedSize / 16 + 1) * 16; + } } else { return this.expectedSize; } @@ -62,7 +65,14 @@ public class DownloadableFile extends File { } public void setKey(byte[] key) { - if (key.length >= 32) { + if (key.length == 48) { + byte[] secretKey = new byte[32]; + byte[] iv = new byte[16]; + System.arraycopy(key, 0, iv, 0, 16); + System.arraycopy(key, 16, secretKey, 0, 32); + this.aeskey = new SecretKeySpec(secretKey, "AES"); + this.iv = iv; + } else if (key.length >= 32) { byte[] secretKey = new byte[32]; System.arraycopy(key, 0, secretKey, 0, 32); this.aeskey = new SecretKeySpec(secretKey, "AES"); @@ -70,12 +80,7 @@ public class DownloadableFile extends File { byte[] secretKey = new byte[16]; System.arraycopy(key, 0, secretKey, 0, 16); this.aeskey = new SecretKeySpec(secretKey, "AES"); - } else { - Log.d(Config.LOGTAG, "weird key"); } - Log.d(Config.LOGTAG, - "using aes key " - + CryptoHelper.bytesToHex(this.aeskey.getEncoded())); } public Key getKey() { @@ -123,7 +128,7 @@ public class DownloadableFile extends File { } } else { try { - IvParameterSpec ips = new IvParameterSpec(iv); + IvParameterSpec ips = new IvParameterSpec(this.iv); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, this.getKey(), ips); Log.d(Config.LOGTAG, "opening encrypted output stream"); diff --git a/src/eu/siacs/conversations/entities/Message.java b/src/eu/siacs/conversations/entities/Message.java index dab285393..a390c7ca0 100644 --- a/src/eu/siacs/conversations/entities/Message.java +++ b/src/eu/siacs/conversations/entities/Message.java @@ -403,8 +403,9 @@ public class Message extends AbstractEntity { extensionParts[extensionParts.length - 1])) { return true; } else if (extensionParts.length == 3 - && Arrays.asList(Downloadable.VALID_CRYPTO_EXTENSIONS) - .contains(extensionParts.length - 1) + && Arrays + .asList(Downloadable.VALID_CRYPTO_EXTENSIONS) + .contains(extensionParts[extensionParts.length - 1]) && Arrays.asList(Downloadable.VALID_EXTENSIONS).contains( extensionParts[extensionParts.length - 2])) { return true; diff --git a/src/eu/siacs/conversations/http/HttpConnection.java b/src/eu/siacs/conversations/http/HttpConnection.java index 467b6a805..407a13d94 100644 --- a/src/eu/siacs/conversations/http/HttpConnection.java +++ b/src/eu/siacs/conversations/http/HttpConnection.java @@ -27,6 +27,7 @@ import eu.siacs.conversations.entities.Downloadable; import eu.siacs.conversations.entities.DownloadableFile; import eu.siacs.conversations.entities.Message; import eu.siacs.conversations.services.XmppConnectionService; +import eu.siacs.conversations.utils.CryptoHelper; public class HttpConnection implements Downloadable { @@ -64,6 +65,14 @@ public class HttpConnection implements Downloadable { mUrl = new URL(message.getBody()); this.file = mXmppConnectionService.getFileBackend().getFile( message, false); + String reference = mUrl.getRef(); + if (reference != null && reference.length() == 96) { + this.file.setKey(CryptoHelper.hexToBytes(reference)); + } + if (this.message.getEncryption() == Message.ENCRYPTION_OTR + && this.file.getKey() == null) { + this.message.setEncryption(Message.ENCRYPTION_NONE); + } checkFileSize(false); } catch (MalformedURLException e) { this.cancel(); diff --git a/src/eu/siacs/conversations/utils/CryptoHelper.java b/src/eu/siacs/conversations/utils/CryptoHelper.java index a28b519e5..47595c6e3 100644 --- a/src/eu/siacs/conversations/utils/CryptoHelper.java +++ b/src/eu/siacs/conversations/utils/CryptoHelper.java @@ -5,7 +5,6 @@ import java.nio.charset.Charset; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.security.SecureRandom; -import java.util.Arrays; import eu.siacs.conversations.entities.Account; import android.util.Base64; @@ -28,9 +27,11 @@ public class CryptoHelper { } public static byte[] hexToBytes(String hexString) { - byte[] array = new BigInteger(hexString, 16).toByteArray(); - if (array[0] == 0) { - array = Arrays.copyOfRange(array, 1, array.length); + int len = hexString.length(); + byte[] array = new byte[len / 2]; + for (int i = 0; i < len; i += 2) { + array[i / 2] = (byte) ((Character.digit(hexString.charAt(i), 16) << 4) + Character + .digit(hexString.charAt(i + 1), 16)); } return array; } diff --git a/src/eu/siacs/conversations/xmpp/jingle/JingleConnectionManager.java b/src/eu/siacs/conversations/xmpp/jingle/JingleConnectionManager.java index c8209bd91..1e7c84d45 100644 --- a/src/eu/siacs/conversations/xmpp/jingle/JingleConnectionManager.java +++ b/src/eu/siacs/conversations/xmpp/jingle/JingleConnectionManager.java @@ -136,7 +136,8 @@ public class JingleConnectionManager extends AbstractConnectionManager { } if (sid != null) { for (JingleConnection connection : connections) { - if (connection.getAccount() == account && connection.hasTransportId(sid)) { + if (connection.getAccount() == account + && connection.hasTransportId(sid)) { JingleTransport transport = connection.getTransport(); if (transport instanceof JingleInbandTransport) { JingleInbandTransport inbandTransport = (JingleInbandTransport) transport; |