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GUACAMOLE-362: Deal correctly with return value when reading the key.

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Nick Couchman
2017-10-01 07:15:19 -04:00
committed by Nick Couchman
parent ab41f44100
commit 3d091411f3
1 changed files with 16 additions and 2 deletions
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18
guacamole-ext/src/main/java/org/apache/guacamole/properties/PrivateKeyGuacamoleProperty.java
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@@ -53,8 +53,22 @@ public abstract class PrivateKeyGuacamoleProperty implements GuacamoleProperty<P
// Open and read the file specified in the configuration.
File keyFile = new File(value);
InputStream keyInput = new BufferedInputStream(new FileInputStream(keyFile));
final byte[] keyBytes = new byte[(int) keyFile.length()];
keyInput.read(keyBytes);
int keyLength = (int) keyFile.length();
final byte[] keyBytes = new byte[keyLength];
int keyRead = keyInput.read(keyBytes);
// Error reading any bytes out of the key.
if (keyRead == -1)
throw new GuacamoleServerException("Failed to get any bytes while reading key.");
// Zero-sized key
else if(keyRead == 0)
throw new GuacamoleServerException("Failed to ready key because key is empty.");
// Fewer bytes read than contained in the key
else if (keyRead < keyLength)
throw new GuacamoleServerException("Unable to read the full length of the key.");
keyInput.close();
// Set up decryption infrastructure