Don't log any passwords in JDBC url (#1979)

Co-authored-by: Martin Steiger <martin.steiger@ruv.de>

src/main/java/com/zaxxer/hikari/HikariConfig.java

@@ -1124,7 +1124,7 @@ public class HikariConfig implements HikariConfigMXBean
                value = "internal";
             }
             else if (prop.contains("jdbcUrl") && value instanceof String) {
-               value = ((String)value).replaceAll("([?&;]password=)[^&#;]*(.*)", "$1<masked>$2");
+               value = ((String)value).replaceAll("([?&;][^&#;=]*[pP]assword=)[^&#;]*", "$1<masked>");
             }
             else if (prop.contains("password")) {
                value = "<masked>";

src/test/java/com/zaxxer/hikari/HikariConfigTest.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * 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 com.zaxxer.hikari;
+
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.core.Filter;
+import org.apache.logging.log4j.core.Layout;
+import org.apache.logging.log4j.core.LogEvent;
+import org.apache.logging.log4j.core.LoggerContext;
+import org.apache.logging.log4j.core.appender.AbstractAppender;
+import org.apache.logging.log4j.core.config.Configuration;
+import org.apache.logging.log4j.core.config.LoggerConfig;
+import org.apache.logging.log4j.core.config.Property;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static com.zaxxer.hikari.pool.TestElf.newHikariConfig;
+import static org.junit.Assert.*;
+
+public class HikariConfigTest {
+   private TestAppender testAppender = new TestAppender();
+
+   @Before
+   public void setup() {
+      getLoggerConfig().addAppender(testAppender, Level.ALL, null);
+   }
+
+   @After
+   public void tearDown() {
+      getLoggerConfig().removeAppender(testAppender.getName());
+   }
+
+   private static LoggerConfig getLoggerConfig() {
+      LoggerContext loggerContext = (LoggerContext) LogManager.getContext(false);
+      Configuration configuration = loggerContext.getConfiguration();
+      return configuration.getRootLogger();
+   }
+
+   @Test
+   public void testJdbcUrlLogging() {
+      List<String> urls = Arrays.asList(
+         "jdbc:postgresql://host/d_dlq?user=USER&password=SECRET",
+         "jdbc:postgresql://host/d_dlq?user=USER&truststorePassword=SECRET",
+         "jdbc:postgresql://host/d_dlq?a=b&password=SECRET&user=USER",
+         "jdbc:postgresql://host/d_dlq?a=b&sslpassword=SECRET&user=USER",
+         "jdbc:postgresql://host/d_dlq?truststorePassword=SECRET;user=USER&password=SECRET#extra",
+         "jdbc:postgresql://host/d_dlq?a=b&sslpassword=SECRET&password=SECRET&user=USER",
+         "jdbc:postgresql://host/d_dlq?sslpassword=SECRET&password=SECRET&trustPassword=SECRET&user=USER",
+         "jdbc:postgresql://host/d_dlq?password=SECRET#user=USER;extra"
+      );
+
+      for (String url : urls) {
+         testJdbcUrl(url);
+      }
+   }
+
+   private void testJdbcUrl(String jdbcUrl) {
+      HikariConfig config = newHikariConfig();
+      config.setJdbcUrl(jdbcUrl);
+      config.validate();
+
+      assertTrue(testAppender.getLog().contains("jdbc:postgresql://host/d_dlq"));
+      assertTrue(testAppender.getLog().contains("user=USER"));
+      assertFalse("Log should not contain password", testAppender.getLog().contains("SECRET"));
+   }
+
+
+   private static class TestAppender extends AbstractAppender {
+
+      private String log;
+
+      TestAppender() {
+         super("TestAppender", (Filter)null, (Layout)null, true, Property.EMPTY_ARRAY);
+      }
+
+      @Override
+      public void append(LogEvent event) {
+         log += event.getMessage().getFormattedMessage() + "\n";
+      }
+
+      String getLog() {
+         return log;
+      }
+   }
+}