/*
* Copyright 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.mongodb.config;
import java.beans.PropertyEditorSupport;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.util.StringUtils;
import com.mongodb.MongoCredential;
/**
* Parse a {@link String} to a Collection of {@link MongoCredential}.
*
* @author Christoph Strobl
* @author Oliver Gierke
* @since 1.7
*/
public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
private static final Pattern GROUP_PATTERN = Pattern.compile("(\\\\?')(.*?)\\1");
private static final String AUTH_MECHANISM_KEY = "uri.authMechanism";
private static final String USERNAME_PASSWORD_DELIMINATOR = ":";
private static final String DATABASE_DELIMINATOR = "@";
private static final String OPTIONS_DELIMINATOR = "?";
private static final String OPTION_VALUE_DELIMINATOR = "&";
/*
* (non-Javadoc)
* @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
*/
@Override
public void setAsText(String text) throws IllegalArgumentException {
if (!StringUtils.hasText(text)) {
return;
}
List<MongoCredential> credentials = new ArrayList<MongoCredential>();
for (String credentialString : extractCredentialsString(text)) {
String[] userNameAndPassword = extractUserNameAndPassword(credentialString);
String database = extractDB(credentialString);
Properties options = extractOptions(credentialString);
if (!options.isEmpty()) {
if (options.containsKey(AUTH_MECHANISM_KEY)) {
String authMechanism = options.getProperty(AUTH_MECHANISM_KEY);
if (MongoCredential.GSSAPI_MECHANISM.equals(authMechanism)) {
verifyUserNamePresent(userNameAndPassword);
credentials.add(MongoCredential.createGSSAPICredential(userNameAndPassword[0]));
} else if (MongoCredential.MONGODB_CR_MECHANISM.equals(authMechanism)) {
verifyUsernameAndPasswordPresent(userNameAndPassword);
verifyDatabasePresent(database);
credentials.add(MongoCredential.createMongoCRCredential(userNameAndPassword[0], database,
userNameAndPassword[1].toCharArray()));
} else if (MongoCredential.MONGODB_X509_MECHANISM.equals(authMechanism)) {
verifyUserNamePresent(userNameAndPassword);
credentials.add(MongoCredential.createMongoX509Credential(userNameAndPassword[0]));
} else if (MongoCredential.PLAIN_MECHANISM.equals(authMechanism)) {
verifyUsernameAndPasswordPresent(userNameAndPassword);
verifyDatabasePresent(database);
credentials.add(MongoCredential.createPlainCredential(userNameAndPassword[0], database,
userNameAndPassword[1].toCharArray()));
} else if (MongoCredential.SCRAM_SHA_1_MECHANISM.equals(authMechanism)) {
verifyUsernameAndPasswordPresent(userNameAndPassword);
verifyDatabasePresent(database);
credentials.add(MongoCredential.createScramSha1Credential(userNameAndPassword[0], database,
userNameAndPassword[1].toCharArray()));
} else {
throw new IllegalArgumentException(
String.format("Cannot create MongoCredentials for unknown auth mechanism '%s'!", authMechanism));
}
}
} else {
verifyUsernameAndPasswordPresent(userNameAndPassword);
verifyDatabasePresent(database);
credentials.add(
MongoCredential.createCredential(userNameAndPassword[0], database, userNameAndPassword[1].toCharArray()));
}
}
setValue(credentials);
}
private List<String> extractCredentialsString(String source) {
Matcher matcher = GROUP_PATTERN.matcher(source);
List<String> list = new ArrayList<String>();
while (matcher.find()) {
String value = StringUtils.trimLeadingCharacter(matcher.group(), '\'');
list.add(StringUtils.trimTrailingCharacter(value, '\''));
}
if (!list.isEmpty()) {
return list;
}
return Arrays.asList(source.split(","));
}
private static String[] extractUserNameAndPassword(String text) {
int index = text.lastIndexOf(DATABASE_DELIMINATOR);
index = index != -1 ? index : text.lastIndexOf(OPTIONS_DELIMINATOR);
return index == -1 ? new String[] {} : text.substring(0, index).split(USERNAME_PASSWORD_DELIMINATOR);
}
private static String extractDB(String text) {
int dbSeperationIndex = text.lastIndexOf(DATABASE_DELIMINATOR);
if (dbSeperationIndex == -1) {
return "";
}
String tmp = text.substring(dbSeperationIndex + 1);
int optionsSeperationIndex = tmp.lastIndexOf(OPTIONS_DELIMINATOR);
return optionsSeperationIndex > -1 ? tmp.substring(0, optionsSeperationIndex) : tmp;
}
private static Properties extractOptions(String text) {
int optionsSeperationIndex = text.lastIndexOf(OPTIONS_DELIMINATOR);
int dbSeperationIndex = text.lastIndexOf(OPTIONS_DELIMINATOR);
if (optionsSeperationIndex == -1 || dbSeperationIndex > optionsSeperationIndex) {
return new Properties();
}
Properties properties = new Properties();
for (String option : text.substring(optionsSeperationIndex + 1).split(OPTION_VALUE_DELIMINATOR)) {
String[] optionArgs = option.split("=");
properties.put(optionArgs[0], optionArgs[1]);
}
return properties;
}
private static void verifyUsernameAndPasswordPresent(String[] source) {
verifyUserNamePresent(source);
if (source.length != 2) {
throw new IllegalArgumentException(
"Credentials need to specify username and password like in 'username:password@database'!");
}
}
private static void verifyDatabasePresent(String source) {
if (!StringUtils.hasText(source)) {
throw new IllegalArgumentException("Credentials need to specify database like in 'username:password@database'!");
}
}
private static void verifyUserNamePresent(String[] source) {
if (source.length == 0 || !StringUtils.hasText(source[0])) {
throw new IllegalArgumentException("Credentials need to specify username!");
}
}
}