Added UI for Database settings

Also cleanup some documentation

*Database Settings have been renamed and will require manually fixing
from 6.2beta1*

database.varchar.maxlength -> DatabaseMysqlMaxlength
database.config.type -> DatabaseConfigType
database.config.embed.driver -> DatabasigEmbedDriver
database.config.embed.url -> DatabaseConfigEmbedUrl
database.config.embed.username -> DatabasigEmbedUsername
database.config.embed.password -> DatabasigEmbedPassword
database.config.jndi.name -> DatabaseConfigJNDIName
database.usertable.quote -> DatabaseUsertableQuote

Signed-off-by: Andrew DeMaria <lostonamountain@gmail.com>

documentation/CONFIGURATION.md

@@ -0,0 +1,40 @@
+# Startup Configuration Guide
+
+Libresonic has some system-wide configuration. These configurations are stored in the 
+`libresonic.properties` file. There is one exception, which is the `libresonic.home` parameter which 
+is supplied as a Java System Property.
+
+## `libresonic.properties`
+These parameters are simple key-value pairs stored in a list. It is recommended that these parameters
+are changed through the web interface settings page. However, they can also be modified directly. Shutdown
+your server first, modify, then start it for changes to take effect.
+
+## Java Parameters
+The `libresonic.home` parameter is a Java System Property that is not modifiable through the web interface. 
+It must be configured via Java startup parameters. See below for steps to do this.
+
+#### `libresonic.home`
+This parameter dictates the folder where Libresonic will store its logs, 
+settings, transcode binaries, index and database if using the default H2 
+database. As such it is recommended to backup this folder.
+
+*default: `/var/libresonic` or `C:\\music`*
+
+#### Setting Java Parameters on Tomcat
+As described in the [RUNNING.txt](http://tomcat.apache.org/tomcat-8.0-doc/RUNNING.txt) doc provided by tomcat,
+you can create a file named `setenv.sh` or for windows `setenv.bat` in the Tomcat home `bin` folder to  modify  the 
+java args.
+
+Here is an example of a `setenv.sh` file (`setenv.bat` has slightly different syntax):
+```
+export JAVA_OPTS="$JAVA_OPTS -Dlibresonic.home=/home/andrew/.cache/libresonic-test"
+```
+
+#### Setting Java Parameters for Standalone Package (SpringBoot)
+When running the standalone package, add `-Dlibresonic.home=YOUR_PATH_HERE` to the `java` command line right before the 
+`-jar` argument. Here is an example for linux (windows users will want to use their OS specific path syntax i.e. 
+`C:\\your\path`)
+
+```
+java -Dlibresonic.home=/home/andrew/libresonichome -jar libresonic.war
+```

documentation/DATABASE.md

@@ -21,16 +21,19 @@ We will refer to container managed configuration as jndi and libresonic managed
 In your libresonic.properties file, you will need to add the following settings (this is just an example):
 
 ```
-database.config.type=embed
+DatabaseConfigType=embed
-database.config.embed.driver=org.hsqldb.jdbcDriver
+DatabaseConfigEmbedDriver=org.hsqldb.jdbcDriver
-database.config.embed.url=jdbc:hsqldb:file:/tmp/libre/db/libresonic
+DatabaseConfigEmbedUrl=jdbc:hsqldb:file:/tmp/libre/db/libresonic
-database.config.embed.username=sa
+DatabaseConfigEmbedUsername=sa
-database.config.embed.password=
+DatabaseConfigEmbedPassword=
 ```
 
 In addition, you will need to ensure that a jdbc driver suitable for your
 database is on the
-[classpath](https://docs.oracle.com/javase/8/docs/technotes/tools/windows/classpath.html)
+[classpath](https://docs.oracle.com/javase/8/docs/technotes/tools/windows/classpath.html).
+
+*Note adding to the classpath is currently pretty difficult for spring-boot. Tomcat is easy, just copy into tomcat home 
+/lib. TODO: provide prebuilt artifacts with tested databases built in?*
 
 ## JNDI
 *Before doing anything, make sure your database is properly backed up. Ensure your server is shutdown*
@@ -38,8 +41,8 @@ database is on the
 In your libresonic.properties file, you will need to add the following settings (this is just an example):
 
 ```
-database.config.type=jndi
+DatabaseConfigType=jndi
-database.config.jndi.name=jdbc/libresonicDB
+DatabaseConfigJNDIName=jdbc/libresonicDB
 ```
 
 Then in your context.xml in your tomcat directory, add the jndi config:
@@ -65,5 +68,10 @@ Finally, copy the jdbc driver from the database vendor website to the `lib` dire
 
 `stringtype=unspecified` on your jdbc url string is necessary.
 
-You will also need to add `database.usertable.quote=\"` to your properties
+You will also need to add `DatabaseUsertableQuote=\"` to your properties
 file. This is due to the fact that our `user` table is a keyword for postgres.
+
+## Troubleshooting
+
+In the event that you change these settings, restart your server and it fails to start, you can remedy this by reverting
+to the LEGACY config by removing all `Database*` settings from your `libresonic.properties` file.

libresonic-main/pom.xml

@@ -381,6 +381,12 @@
             <artifactId>maven-artifact</artifactId>
             <version>3.3.9</version>
         </dependency>
+
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>1.1.0.Final</version>
+        </dependency>
     </dependencies>
 
     <build>

libresonic-main/src/main/java/org/libresonic/player/command/DatabaseSettingsCommand.java

@@ -0,0 +1,82 @@
+package org.libresonic.player.command;
+
+import org.libresonic.player.spring.DataSourceConfigType;
+
+import javax.validation.constraints.NotNull;
+
+public class DatabaseSettingsCommand {
+
+    @NotNull
+    private DataSourceConfigType configType;
+    private String embedDriver;
+    private String embedPassword;
+    private String embedUrl;
+    private String embedUsername;
+    private String JNDIName;
+    private int mysqlVarcharMaxlength;
+    private String usertableQuote;
+
+    public DataSourceConfigType getConfigType() {
+        return configType;
+    }
+
+    public void setConfigType(DataSourceConfigType configType) {
+        this.configType = configType;
+    }
+
+    public String getEmbedDriver() {
+        return embedDriver;
+    }
+
+    public void setEmbedDriver(String embedDriver) {
+        this.embedDriver = embedDriver;
+    }
+
+    public String getEmbedPassword() {
+        return embedPassword;
+    }
+
+    public void setEmbedPassword(String embedPassword) {
+        this.embedPassword = embedPassword;
+    }
+
+    public String getEmbedUrl() {
+        return embedUrl;
+    }
+
+    public void setEmbedUrl(String embedUrl) {
+        this.embedUrl = embedUrl;
+    }
+
+    public String getEmbedUsername() {
+        return embedUsername;
+    }
+
+    public void setEmbedUsername(String embedUsername) {
+        this.embedUsername = embedUsername;
+    }
+
+    public String getJNDIName() {
+        return JNDIName;
+    }
+
+    public void setJNDIName(String JNDIName) {
+        this.JNDIName = JNDIName;
+    }
+
+    public int getMysqlVarcharMaxlength() {
+        return mysqlVarcharMaxlength;
+    }
+
+    public void setMysqlVarcharMaxlength(int mysqlVarcharMaxlength) {
+        this.mysqlVarcharMaxlength = mysqlVarcharMaxlength;
+    }
+
+    public String getUsertableQuote() {
+        return usertableQuote;
+    }
+
+    public void setUsertableQuote(String usertableQuote) {
+        this.usertableQuote = usertableQuote;
+    }
+}

libresonic-main/src/main/java/org/libresonic/player/controller/DatabaseSettingsController.java

@@ -0,0 +1,106 @@
+/*
+ This file is part of Libresonic.
+
+ Libresonic is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Libresonic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Libresonic.  If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2016 (C) Libresonic Authors
+ Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
+ */
+package org.libresonic.player.controller;
+
+import org.libresonic.player.command.DatabaseSettingsCommand;
+import org.libresonic.player.dao.AlbumDao;
+import org.libresonic.player.dao.ArtistDao;
+import org.libresonic.player.dao.MediaFileDao;
+import org.libresonic.player.service.MediaScannerService;
+import org.libresonic.player.service.SettingsService;
+import org.libresonic.player.spring.DataSourceConfigType;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+
+@Controller
+@RequestMapping("/databaseSettings")
+public class DatabaseSettingsController {
+
+    @Autowired
+    private SettingsService settingsService;
+    @Autowired
+    private MediaScannerService mediaScannerService;
+    @Autowired
+    private ArtistDao artistDao;
+    @Autowired
+    private AlbumDao albumDao;
+    @Autowired
+    private MediaFileDao mediaFileDao;
+
+    @RequestMapping(method = RequestMethod.GET)
+    protected String displayForm() throws Exception {
+        return "databaseSettings";
+    }
+
+    @ModelAttribute
+    protected void formBackingObject(Model model) throws Exception {
+        DatabaseSettingsCommand command = new DatabaseSettingsCommand();
+        command.setConfigType(settingsService.getDatabaseConfigType());
+        command.setEmbedDriver(settingsService.getDatabaseConfigEmbedDriver());
+        command.setEmbedPassword(settingsService.getDatabaseConfigEmbedPassword());
+        command.setEmbedUrl(settingsService.getDatabaseConfigEmbedUrl());
+        command.setEmbedUsername(settingsService.getDatabaseConfigEmbedUsername());
+        command.setJNDIName(settingsService.getDatabaseConfigJNDIName());
+        command.setMysqlVarcharMaxlength(settingsService.getDatabaseMysqlVarcharMaxlength());
+        command.setUsertableQuote(settingsService.getDatabaseUsertableQuote());
+        model.addAttribute("command", command);
+    }
+
+    @RequestMapping(method = RequestMethod.POST)
+    protected String onSubmit(@ModelAttribute("command") @Validated DatabaseSettingsCommand command,
+                              BindingResult bindingResult,
+                              RedirectAttributes redirectAttributes) throws Exception {
+        if (!bindingResult.hasErrors()) {
+            settingsService.resetDatabaseToDefault();
+            settingsService.setDatabaseConfigType(command.getConfigType());
+            switch(command.getConfigType()) {
+                case EMBED:
+                    settingsService.setDatabaseConfigEmbedDriver(command.getEmbedDriver());
+                    settingsService.setDatabaseConfigEmbedPassword(command.getEmbedPassword());
+                    settingsService.setDatabaseConfigEmbedUrl(command.getEmbedUrl());
+                    settingsService.setDatabaseConfigEmbedUsername(command.getEmbedUsername());
+                    break;
+                case JNDI:
+                    settingsService.setDatabaseConfigJNDIName(command.getJNDIName());
+                    break;
+                case LEGACY:
+                default:
+                    break;
+            }
+            if(command.getConfigType() != DataSourceConfigType.LEGACY) {
+                settingsService.setDatabaseMysqlVarcharMaxlength(command.getMysqlVarcharMaxlength());
+                settingsService.setDatabaseUsertableQuote(command.getUsertableQuote());
+            }
+            redirectAttributes.addFlashAttribute("settings_toast", true);
+            settingsService.save();
+            return "redirect:databaseSettings.view";
+        } else {
+            return "databaseSettings.view";
+        }
+    }
+
+}

libresonic-main/src/main/java/org/libresonic/player/security/WebSecurityConfig.java

@@ -79,7 +79,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
                         "/playerSettings.view", "/shareSettings.view","/passwordSettings.view")
                     .hasRole("SETTINGS")
                 .antMatchers("/generalSettings.view","/advancedSettings.view","/userSettings.view",
-                        "/musicFolderSettings.view")
+                        "/musicFolderSettings.view", "/databaseSettings.view")
                     .hasRole("ADMIN")
                 .antMatchers("/deletePlaylist.view","/savePlaylist.view")
                     .hasRole("PLAYLIST")

libresonic-main/src/main/java/org/libresonic/player/service/SettingsService.java

@@ -26,6 +26,7 @@ import org.libresonic.player.dao.InternetRadioDao;
 import org.libresonic.player.dao.MusicFolderDao;
 import org.libresonic.player.dao.UserDao;
 import org.libresonic.player.domain.*;
+import org.libresonic.player.spring.DataSourceConfigType;
 import org.libresonic.player.util.FileUtil;
 import org.libresonic.player.util.StringUtil;
 import org.libresonic.player.util.Util;
@@ -105,6 +106,16 @@ public class SettingsService {
     private static final String KEY_SMTP_PASSWORD = "SmtpPassword";
     private static final String KEY_SMTP_FROM = "SmtpFrom";
 
+    // Database Settings
+    private static final String KEY_DATABASE_CONFIG_TYPE = "DatabaseConfigType";
+    private static final String KEY_DATABASE_CONFIG_EMBED_DRIVER = "DatabaseConfigEmbedDriver";
+    private static final String KEY_DATABASE_CONFIG_EMBED_URL = "DatabaseConfigEmbedUrl";
+    private static final String KEY_DATABASE_CONFIG_EMBED_USERNAME = "DatabaseConfigEmbedUsername";
+    private static final String KEY_DATABASE_CONFIG_EMBED_PASSWORD = "DatabaseConfigEmbedPassword";
+    private static final String KEY_DATABASE_CONFIG_JNDI_NAME = "DatabaseConfigJNDIName";
+    private static final String KEY_DATABASE_MYSQL_VARCHAR_MAXLENGTH = "DatabaseMysqlMaxlength";
+    private static final String KEY_DATABASE_USERTABLE_QUOTE = "DatabaseUsertableQuote";
+
     // Default values.
     private static final String DEFAULT_INDEX_STRING = "A B C D E F G H I J K L M N O P Q R S T U V W X-Z(XYZ)";
     private static final String DEFAULT_IGNORED_ARTICLES = "The El La Los Las Le Les";
@@ -168,13 +179,26 @@ public class SettingsService {
     private static final String DEFAULT_SMTP_PASSWORD = null;
     private static final String DEFAULT_SMTP_FROM = "libresonic@libresonic.org";
 
+    private static final DataSourceConfigType DEFAULT_DATABASE_CONFIG_TYPE = DataSourceConfigType.LEGACY;
+    private static final String DEFAULT_DATABASE_CONFIG_EMBED_DRIVER = null;
+    private static final String DEFAULT_DATABASE_CONFIG_EMBED_URL = null;
+    private static final String DEFAULT_DATABASE_CONFIG_EMBED_USERNAME = null;
+    private static final String DEFAULT_DATABASE_CONFIG_EMBED_PASSWORD = null;
+    private static final String DEFAULT_DATABASE_CONFIG_JNDI_NAME = null;
+    private static final Integer DEFAULT_DATABASE_MYSQL_VARCHAR_MAXLENGTH = 512;
+    private static final String DEFAULT_DATABASE_USERTABLE_QUOTE = null;
+
     // Array of obsolete keys.  Used to clean property file.
     private static final List<String> OBSOLETE_KEYS = Arrays.asList("PortForwardingPublicPort", "PortForwardingLocalPort",
             "DownsamplingCommand", "DownsamplingCommand2", "DownsamplingCommand3", "AutoCoverBatch", "MusicMask",
             "VideoMask", "CoverArtMask, HlsCommand", "HlsCommand2", "JukeboxCommand", 
             "CoverArtFileTypes", "UrlRedirectCustomHost", "CoverArtLimit", "StreamPort",
             "PortForwardingEnabled", "RewriteUrl", "UrlRedirectCustomUrl", "UrlRedirectContextPath",
-            "UrlRedirectFrom", "UrlRedirectionEnabled", "UrlRedirectType", "Port", "HttpsPort");
+            "UrlRedirectFrom", "UrlRedirectionEnabled", "UrlRedirectType", "Port", "HttpsPort",
+            // Database settings renamed
+            "database.varchar.maxlength", "database.config.type", "database.config.embed.driver",
+            "database.config.embed.url", "database.config.embed.username", "database.config.embed.password",
+            "database.config.jndi.name", "database.usertable.quote");
 
     private static final String LOCALES_FILE = "/org/libresonic/player/i18n/locales.txt";
     private static final String THEMES_FILE = "/org/libresonic/player/theme/themes.txt";
@@ -1243,7 +1267,83 @@ public class SettingsService {
         setString(KEY_SMTP_FROM, smtpFrom);
     }
 
+    public DataSourceConfigType getDatabaseConfigType() {
+        String raw = getString(KEY_DATABASE_CONFIG_TYPE, DEFAULT_DATABASE_CONFIG_TYPE.name());
+        return DataSourceConfigType.valueOf(StringUtils.upperCase(raw));
+    }
+
+    public void setDatabaseConfigType(DataSourceConfigType databaseConfigType) {
+        setString(KEY_DATABASE_CONFIG_TYPE, databaseConfigType.name());
+    }
+
+    public String getDatabaseConfigEmbedDriver() {
+        return getString(KEY_DATABASE_CONFIG_EMBED_DRIVER, DEFAULT_DATABASE_CONFIG_EMBED_DRIVER);
+    }
+
+    public void setDatabaseConfigEmbedDriver(String embedDriver) {
+        setString(KEY_DATABASE_CONFIG_EMBED_DRIVER, embedDriver);
+    }
+
+    public String getDatabaseConfigEmbedUrl() {
+        return getString(KEY_DATABASE_CONFIG_EMBED_URL, DEFAULT_DATABASE_CONFIG_EMBED_URL);
+    }
+
+    public void setDatabaseConfigEmbedUrl(String url) {
+        setString(KEY_DATABASE_CONFIG_EMBED_URL, url);
+    }
+
+    public String getDatabaseConfigEmbedUsername() {
+        return getString(KEY_DATABASE_CONFIG_EMBED_USERNAME, DEFAULT_DATABASE_CONFIG_EMBED_USERNAME);
+    }
+
+    public void setDatabaseConfigEmbedUsername(String username) {
+        setString(KEY_DATABASE_CONFIG_EMBED_USERNAME, username);
+    }
+
+    public String getDatabaseConfigEmbedPassword() {
+        return getString(KEY_DATABASE_CONFIG_EMBED_PASSWORD, DEFAULT_DATABASE_CONFIG_EMBED_PASSWORD);
+    }
+
+    public void setDatabaseConfigEmbedPassword(String password) {
+        setString(KEY_DATABASE_CONFIG_EMBED_PASSWORD, password);
+    }
+
+    public String getDatabaseConfigJNDIName() {
+        return getString(KEY_DATABASE_CONFIG_JNDI_NAME, DEFAULT_DATABASE_CONFIG_JNDI_NAME);
+    }
+
+    public void setDatabaseConfigJNDIName(String jndiName) {
+        setString(KEY_DATABASE_CONFIG_JNDI_NAME, jndiName);
+    }
+
+    public Integer getDatabaseMysqlVarcharMaxlength() {
+        return getInt(KEY_DATABASE_MYSQL_VARCHAR_MAXLENGTH, DEFAULT_DATABASE_MYSQL_VARCHAR_MAXLENGTH);
+    }
+
+    public void setDatabaseMysqlVarcharMaxlength(int maxlength) {
+        setInt(KEY_DATABASE_MYSQL_VARCHAR_MAXLENGTH, maxlength);
+    }
+
+    public String getDatabaseUsertableQuote() {
+        return getString(KEY_DATABASE_USERTABLE_QUOTE, DEFAULT_DATABASE_USERTABLE_QUOTE);
+    }
+
+    public void setDatabaseUsertableQuote(String usertableQuote) {
+        setString(KEY_DATABASE_USERTABLE_QUOTE, usertableQuote);
+    }
+
     public void setConfigurationService(ApacheCommonsConfigurationService configurationService) {
         this.configurationService = configurationService;
     }
+
+    public void resetDatabaseToDefault() {
+        setDatabaseConfigEmbedDriver(DEFAULT_DATABASE_CONFIG_EMBED_DRIVER);
+        setDatabaseConfigEmbedPassword(DEFAULT_DATABASE_CONFIG_EMBED_PASSWORD);
+        setDatabaseConfigEmbedUrl(DEFAULT_DATABASE_CONFIG_EMBED_URL);
+        setDatabaseConfigEmbedUsername(DEFAULT_DATABASE_CONFIG_EMBED_USERNAME);
+        setDatabaseConfigJNDIName(DEFAULT_DATABASE_CONFIG_JNDI_NAME);
+        setDatabaseMysqlVarcharMaxlength(DEFAULT_DATABASE_MYSQL_VARCHAR_MAXLENGTH);
+        setDatabaseUsertableQuote(DEFAULT_DATABASE_USERTABLE_QUOTE);
+        setDatabaseConfigType(DEFAULT_DATABASE_CONFIG_TYPE);
+    }
 }

libresonic-main/src/main/java/org/libresonic/player/spring/LibresonicPropertySourceConfigurer.java

@@ -13,7 +13,7 @@ import java.util.List;
 public class LibresonicPropertySourceConfigurer implements
         ApplicationContextInitializer<ConfigurableWebApplicationContext> {
 
-    public static final String DATASOURCE_CONFIG_TYPE = "database.config.type";
+    public static final String DATASOURCE_CONFIG_TYPE = "DatabaseConfigType";
 
     public void initialize(ConfigurableWebApplicationContext ctx) {
 

libresonic-main/src/main/java/org/libresonic/player/util/Util.java

@@ -20,14 +20,10 @@
 package org.libresonic.player.util;
 
 import org.libresonic.player.Logger;
-import org.libresonic.player.service.SettingsService;
 
 import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServletResponse;
 
-import java.net.Inet4Address;
-import java.net.InetAddress;
-import java.net.NetworkInterface;
 import java.util.*;
 
 /**
@@ -38,7 +34,6 @@ import java.util.*;
 public final class Util {
 
     private static final Logger LOG = Logger.getLogger(Util.class);
-    private static final Random RANDOM = new Random(System.currentTimeMillis());
 
     /**
      * Disallow external instantiation.
@@ -65,10 +60,6 @@ public final class Util {
         return System.getProperty("os.name", "Windows").toLowerCase().startsWith("windows");
     }
 
-    public static boolean isWindowsInstall() {
-        return "true".equals(System.getProperty("libresonic.windowsInstall"));
-    }
-
     /**
      * Similar to {@link ServletResponse#setContentLength(int)}, but this
      * method supports lengths bigger than 2GB.
@@ -86,90 +77,6 @@ public final class Util {
         }
     }
 
-    /**
-     * Returns the local IP address.  Honours the "libresonic.host" system property.
-     * <p/>
-     * NOTE: For improved performance, use {@link SettingsService#getLocalIpAddress()} instead.
-     *
-     * @return The local IP, or the loopback address (127.0.0.1) if not found.
-     */
-    public static String getLocalIpAddress() {
-        List<String> ipAddresses = getLocalIpAddresses();
-        String libresonicHost = System.getProperty("libresonic.host");
-        if (libresonicHost != null && ipAddresses.contains(libresonicHost)) {
-            return libresonicHost;
-        }
-        return ipAddresses.get(0);
-    }
-
-    private static List<String> getLocalIpAddresses() {
-        List<String> result = new ArrayList<String>();
-
-        // Try the simple way first.
-        try {
-            InetAddress address = InetAddress.getLocalHost();
-            if (!address.isLoopbackAddress()) {
-                result.add(address.getHostAddress());
-            }
-        } catch (Throwable x) {
-            LOG.warn("Failed to resolve local IP address.", x);
-        }
-
-        // Iterate through all network interfaces, looking for a suitable IP.
-        try {
-            Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
-            while (interfaces.hasMoreElements()) {
-                NetworkInterface iface = interfaces.nextElement();
-                Enumeration<InetAddress> addresses = iface.getInetAddresses();
-                while (addresses.hasMoreElements()) {
-                    InetAddress addr = addresses.nextElement();
-                    if (addr instanceof Inet4Address && !addr.isLoopbackAddress()) {
-                        result.add(addr.getHostAddress());
-                    }
-                }
-            }
-        } catch (Throwable x) {
-            LOG.warn("Failed to resolve local IP address.", x);
-        }
-
-        if (result.isEmpty()) {
-            result.add("127.0.0.1");
-        }
-
-        return result;
-    }
-
-    public static int randomInt(int min, int max) {
-        if (min >= max) {
-            return 0;
-        }
-        return min + RANDOM.nextInt(max - min);
-    }
-
-    public static <T> Iterable<T> toIterable(final Enumeration<?> e) {
-        return new Iterable<T>() {
-            public Iterator<T> iterator() {
-                return toIterator(e);
-            }
-        };
-    }
-
-    public static <T> Iterator<T> toIterator(final Enumeration<?> e) {
-        return new Iterator<T>() {
-            public boolean hasNext() {
-                return e.hasMoreElements();
-            }
-
-            public T next() {
-                return (T) e.nextElement();
-            }
-
-            public void remove() {
-                throw new UnsupportedOperationException();
-            }
-        };
-    }
-
     public static <T> List<T> subList(List<T> list, long offset, long max) {
         return list.subList((int) offset, Math.min(list.size(), (int) (offset + max)));
     }

libresonic-main/src/main/resources/applicationContext-db-embed.xml

@@ -6,9 +6,9 @@
     <bean id="dataSource"
           class="org.springframework.jdbc.datasource.DriverManagerDataSource">
 
-        <property name="driverClassName" value="${database.config.embed.driver}" />
+        <property name="driverClassName" value="${DatabaseConfigEmbedDriver}" />
-        <property name="url" value="${database.config.embed.url}" />
+        <property name="url" value="${DatabaseConfigEmbedUrl}" />
-        <property name="username" value="${database.config.embed.username}" />
+        <property name="username" value="${DatabaseConfigEmbedUsername}" />
-        <property name="password" value="${database.config.embed.password}" />
+        <property name="password" value="${DatabaseConfigEmbedPassword}" />
     </bean>
 </beans>

libresonic-main/src/main/resources/applicationContext-db-jndi.xml

@@ -7,6 +7,6 @@
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd"
        profile="jndi">
     <jee:jndi-lookup id="dataSource"
-                     jndi-name="${database.config.jndi.name}"
+                     jndi-name="${DatabaseConfigJNDIName}"
                      expected-type="javax.sql.DataSource" />
 </beans>

libresonic-main/src/main/resources/applicationContext-db.xml

@@ -23,7 +23,7 @@
     </bean>
 
     <bean id="userTableQuote" class="java.lang.String">
-        <constructor-arg value="${database.usertable.quote:}" />
+        <constructor-arg value="${DatabaseUsertableQuote:}" />
     </bean>
 
     <bean id="liquibase" class="org.libresonic.player.spring.SpringLiquibase">
@@ -33,7 +33,7 @@
         <property name="changeLogParameters">
             <map>
                 <entry key="defaultMusicFolder" value="#{T(org.libresonic.player.util.Util).getDefaultMusicFolder()}" />
-                <entry key="varcharLimit" value="${database.varchar.maxlength:512}" />
+                <entry key="mysqlVarcharLimit" value="${DatabaseMysqlMaxlength:512}" />
                 <entry key="userTableQuote" value-ref="userTableQuote" />
             </map>
         </property>

libresonic-main/src/main/resources/liquibase/db-changelog.xml

@@ -5,7 +5,7 @@
     <property name="binary_type" dbms="hsqldb" value="binary" />
     <property name="binary_type" value="blob" />
     <property name="curr_date_expr" value="current_timestamp" />
-    <property name="varchar_type" dbms="mysql" value="varchar(${varcharLimit})" />
+    <property name="varchar_type" dbms="mysql" value="varchar(${mysqlVarcharLimit})" />
     <property name="varchar_type" value="varchar" />
     <include file="legacy/legacy-changelog.xml" relativeToChangelogFile="true"/>
     <include file="6.2/changelog.xml" relativeToChangelogFile="true"/>

libresonic-main/src/main/resources/org/libresonic/player/i18n/ResourceBundle_en.properties

@@ -340,6 +340,7 @@ settingsheader.user = Users
 settingsheader.search = Search/caching
 settingsheader.coverArt = Cover art
 settingsheader.password = Password
+settingsheader.database = Database
 
 # generalSettings.jsp
 generalsettings.playlistfolder = Import playlists from
@@ -599,6 +600,22 @@ usersettings.ldapdisabled = LDAP authentication is not enabled. See Advanced set
 usersettings.passwordnotsupportedforldap = Can't set or change password for LDAP-authenticated users.
 usersettings.ok = Password successfully changed for user {0}.
 
+# databaseSettings.jsp
+databasesettings.moreinfo = Additional information on database settings can be read at \
+  <a href="https://github.com/Libresonic/libresonic/blob/develop/documentation/DATABASE.md">DATABASE.md</a> on the \
+  Libresonic github page.
+databasesettings.configtype = Database Connection Source
+databasesettings.mysqlvarcharmaxlength = MySQL Varchar Maximum Length
+databasesettings.usertablequote = User table Quote
+databasesettings.jndiname = Data Source JNDI Lookup Name
+databasesettings.jdbclibrary = Please ensure that you have your database driver on your \
+  <a href="https://docs.oracle.com/javase/8/docs/technotes/tools/windows/classpath.html">Java Classpath</a>
+databasesettings.embeddriver = JDBC Driver Java classname
+databasesettings.embedurl = JDBC URL
+databasesettings.embedusername =  JDBC Username
+databasesettings.embedpassword = JDBC Password
+databasettings.restartRequired = Database settings require a restart to take affect.
+
 # main.jsp
 main.up = Up
 main.playall = Play all
@@ -732,6 +749,22 @@ helppopup.transcode.title = Max bitrate
 helppopup.transcode.text = <p>If you have constrained bandwidth, you may set an upper limit for the bitrate of the music streams. \
                            For instance, if your original mp3 files are encoded using 256 Kbps (kilobits per second), setting max bitrate \
                            to 128 will make {0} automatically resample the music from 256 to 128 Kbps.</p>
+helppopup.databaseConfigType.title = Data Source Config Type
+helppopup.databaseConfigType.text = <p>Legacy will default to an embed H2 database which is the backwards compatible \
+  option. Embedded JDBC will connect to a JDBC database with the provided settings. JNDI will lookup \
+  a DataSource connection already setup in your application container.</p>
+helppopup.mysqlvarcharmaxlength.title = MySQL Varchar Max Length
+helppopup.mysqlvarcharmaxlength.text = <p>MySQL has a maximum row length and as such needs varchar columns to be \
+  bounded. This value entered here will be the maximum column size.</p>
+helppopup.usertablequote.title = User Table Quote
+helppopup.usertablequote.text = <p>The Libresonic users table is named user. This may be a keyword conflict in some \
+  databases such as Postgres. So for postgres, you will want to use the double quote character (") here</p>
+helppopup.jndiname.title = Data Source JNDI Lookup Name
+helppopup.jndiname.text = A JNDI name to lookup a Data Source of type javax.sql.DataSource. This is something that is\
+   created in your application container (i.e. tomcat).
+helppopup.embeddriver.title = JDBC Driver Class
+helppopup.embeddriver.text = JDBC Driver dependent class name that implments java.sql.Driver. I.E. for postgres one \
+  would use org.postgresql.Driver. This class must be present on the classpath.
 helppopup.playlistfolder.title = Import playlist from
 helppopup.playlistfolder.text = <p>Libresonic will regularly import playlists stored in this folder.</p>
 helppopup.musicmask.title = Music files

libresonic-main/src/main/webapp/WEB-INF/jsp/databaseSettings.jsp

@@ -0,0 +1,128 @@
+<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="iso-8859-1" %>
+<%--@elvariable id="command" type="org.libresonic.player.command.DatabaseSettingsCommand"--%>
+
+<html>
+<head>
+    <%@ include file="head.jsp" %>
+    <%@ include file="jquery.jsp" %>
+    <script>
+        function updateShownOptions() {
+            $(".hideawayDatabaseOptions").hide();
+            var value = $('select#configType').val();
+            var objToShow = $("#" + value + "DatabaseOptions");
+            if (objToShow.length) {
+                objToShow.show();
+            }
+            if(value != 'LEGACY') {
+                $("#nonLEGACYDatabaseOptions").show();
+            }
+        }
+
+        $(document).ready(function () {
+            updateShownOptions();
+            $('select#configType').on('change', function () {
+                updateShownOptions();
+            });
+        });
+    </script>
+</head>
+<body class="mainframe bgcolor1">
+<script type="text/javascript" src="<c:url value="/script/wz_tooltip.js"/>"></script>
+<script type="text/javascript" src="<c:url value="/script/tip_balloon.js"/>"></script>
+
+<c:import url="settingsHeader.jsp">
+    <c:param name="cat" value="database"/>
+    <c:param name="toast" value="${settings_toast}"/>
+</c:import>
+
+<form:form commandName="command" action="databaseSettings.view" method="post">
+    <p><fmt:message key="databasesettings.moreinfo"/></p>
+
+    <table style="white-space:nowrap" class="indent">
+        <tr>
+            <td><fmt:message key="databasesettings.configtype"/></td>
+            <td>
+                <form:select path="configType" cssStyle="width:12em" id="configType">
+                    <form:option value="LEGACY" label="Legacy"/>
+                    <form:option value="EMBED" label="Embedded JDBC"/>
+                    <form:option value="JNDI" label="JNDI"/>
+                </form:select>
+                <c:import url="helpToolTip.jsp"><c:param name="topic" value="databaseConfigType"/></c:import>
+            </td>
+        </tr>
+    </table>
+
+    <div id="EMBEDDatabaseOptions" class="hideawayDatabaseOptions">
+        <table style="white-space:nowrap;" class="indent">
+            <table style="white-space:nowrap;" class="indent">
+                <tr>
+                    <td><fmt:message key="databasesettings.embeddriver"/></td>
+                    <td>
+                        <form:input path="embedDriver" size="30"/>
+                        <c:import url="helpToolTip.jsp"><c:param name="topic" value="embeddriver"/></c:import>
+                    </td>
+                </tr>
+                <tr>
+                    <td><fmt:message key="databasesettings.embedurl"/></td>
+                    <td>
+                        <form:input path="embedUrl" size="58"/>
+                    </td>
+                </tr>
+                <tr>
+                    <td><fmt:message key="databasesettings.embedusername"/></td>
+                    <td>
+                        <form:input path="embedUsername" size="36"/>
+                    </td>
+                </tr>
+                <tr>
+                    <td><fmt:message key="databasesettings.embedpassword"/></td>
+                    <td>
+                        <form:input path="embedPassword" size="36"/>
+                    </td>
+                </tr>
+            </table>
+        </table>
+    </div>
+
+    <div id="JNDIDatabaseOptions" class="hideawayDatabaseOptions">
+        <table style="white-space:nowrap;" class="indent">
+            <tr>
+                <td><fmt:message key="databasesettings.jndiname"/></td>
+                <td>
+                    <form:input path="JNDIName" size="36"/>
+                    <c:import url="helpToolTip.jsp"><c:param name="topic" value="jndiname"/></c:import>
+                </td>
+            </tr>
+        </table>
+    </div>
+    <div id="nonLEGACYDatabaseOptions" class="hideawayDatabaseOptions">
+        <table style="white-space:nowrap" class="indent">
+            <tr>
+                <td><fmt:message key="databasesettings.mysqlvarcharmaxlength"/></td>
+                <td>
+                    <form:input path="mysqlVarcharMaxlength" size="8"/>
+                    <c:import url="helpToolTip.jsp"><c:param name="topic" value="mysqlvarcharmaxlength"/></c:import>
+                </td>
+            </tr>
+            <tr>
+                <td><fmt:message key="databasesettings.usertablequote"/></td>
+                <td>
+                    <form:input path="usertableQuote" size="1" htmlEscape="true"/>
+                    <c:import url="helpToolTip.jsp"><c:param name="topic" value="usertablequote"/></c:import>
+                </td>
+            </tr>
+        </table>
+        <p class="warning"><fmt:message key="databasesettings.jdbclibrary"/></p>
+    </div>
+
+    <p class="warning"><fmt:message key="databasettings.restartRequired"/></p>
+
+    <p>
+        <input type="submit" value="<fmt:message key="common.save"/>" style="margin-right:0.3em">
+        <input type="button" value="<fmt:message key="common.cancel"/>" onclick="location.href='nowPlaying.view'">
+    </p>
+
+</form:form>
+
+</body>
+</html>

libresonic-main/src/main/webapp/WEB-INF/jsp/settingsHeader.jsp

@@ -9,7 +9,7 @@
     </script>
 </c:if>
 
-<c:set var="categories" value="${param.restricted ? 'personal password player share' : 'musicFolder general advanced personal user player share dlna sonos transcoding internetRadio podcast'}"/>
+<c:set var="categories" value="${param.restricted ? 'personal password player share' : 'musicFolder general advanced personal user player share dlna sonos transcoding internetRadio podcast database'}"/>
 <h1>
     <img src="<spring:theme code="settingsImage"/>" alt=""/>
     <span style="vertical-align: middle"><fmt:message key="settingsheader.title"/></span>