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GUACAMOLE-362: Change new property to a PrivateKey and refactor code accordingly.

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Nick Couchman
2017-09-24 15:58:09 -04:00
committed by Nick Couchman
parent ed4c025a2e
commit badbf4cc7d
4 changed files with 34 additions and 41 deletions
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33
extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/AuthenticationProviderService.java
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@@ -44,6 +44,7 @@ import javax.xml.bind.DatatypeConverter;
import org.apache.guacamole.environment.Environment;
import org.apache.guacamole.form.Field;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.GuacamoleServerException;
import org.apache.guacamole.net.auth.Credentials;
import org.apache.guacamole.net.auth.credentials.CredentialsInfo;
import org.apache.guacamole.net.auth.credentials.GuacamoleInsufficientCredentialsException;
@@ -166,32 +167,38 @@ public class AuthenticationProviderService {
throws GuacamoleException {
// If we get nothing, we return nothing.
if (encryptedPassword == null || encryptedPassword.isEmpty())
if (encryptedPassword == null || encryptedPassword.isEmpty()) {
logger.warn("No or empty encrypted password, no password will be available.");
return null;
}
final PrivateKey clearpassKey = confService.getClearpassKey();
if (clearpassKey == null) {
logger.warn("No private key available to decrypt password.");
return null;
}
try {
final Cipher cipher = confService.getClearpassCipher();
final Cipher cipher = Cipher.getInstance(clearpassKey.getAlgorithm());
if (cipher != null) {
if (cipher == null)
throw new GuacamoleServerException("Failed to initialize cipher object with private key.");
// Decode and decrypt, and return a new string.
final byte[] pass64 = DatatypeConverter.parseBase64Binary(encryptedPassword);
final byte[] cipherData = cipher.doFinal(pass64);
return new String(cipherData);
// Initialize the Cipher in decrypt mode.
cipher.init(Cipher.DECRYPT_MODE, clearpassKey);
}
// Decode and decrypt, and return a new string.
final byte[] pass64 = DatatypeConverter.parseBase64Binary(encryptedPassword);
final byte[] cipherData = cipher.doFinal(pass64);
return new String(cipherData);
}
catch (Throwable t) {
logger.error("Failed to decrypt the data, password token will not be available.");
logger.debug("Failed to either convert Base64 or decrypt the password. CAS Password will not be available inside Guacamole. Exception is: {}", t);
return null;
throw new GuacamoleServerException("Failed to decrypt CAS ClearPass password.", t);
}
logger.warn("Encrypted password provided by CAS, but no Private Key was available to decrypt it.");
return null;
}
}

6
extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/CASGuacamoleProperties.java
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@@ -19,7 +19,7 @@
package org.apache.guacamole.auth.cas.conf;
import org.apache.guacamole.properties.CipherGuacamoleProperty;
import org.apache.guacamole.properties.PrivateKeyGuacamoleProperty;
import org.apache.guacamole.properties.StringGuacamoleProperty;
/**
@@ -62,8 +62,8 @@ public class CASGuacamoleProperties {
* The location of the private key file used to retrieve the
* password if CAS is configured to support ClearPass.
*/
public static final CipherGuacamoleProperty CAS_CLEARPASS_KEY =
new CipherGuacamoleProperty() {
public static final PrivateKeyGuacamoleProperty CAS_CLEARPASS_KEY =
new PrivateKeyGuacamoleProperty() {
@Override
public String getName() { return "cas-clearpass-key"; }

4
extensions/guacamole-auth-cas/src/main/java/org/apache/guacamole/auth/cas/conf/ConfigurationService.java
View File

@@ -21,7 +21,7 @@ package org.apache.guacamole.auth.cas.conf;
import com.google.inject.Inject;
import java.io.File;
import javax.crypto.Cipher;
import java.security.PrivateKey;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.environment.Environment;
@@ -82,7 +82,7 @@ public class ConfigurationService {
* @throws GuacamoleException
* If guacamole.properties cannot be parsed.
*/
public Cipher getClearpassCipher() throws GuacamoleException {
public PrivateKey getClearpassKey() throws GuacamoleException {
return environment.getProperty(CASGuacamoleProperties.CAS_CLEARPASS_KEY);
}