From 169fd5652794df649939ce76b4f89b101668d08b Mon Sep 17 00:00:00 2001
From: zzz <zzz@mail.i2p>
Date: Sun, 27 Mar 2016 12:55:28 +0000
Subject: [PATCH] Transport: Include Maxmind geoip-api-java library v1.3.1
 (LGPL v2.1) Use Maxmind database for geoip lookup if it exists Debian: Don't
 bundle geoip.txt and geoipv6.dat.gz, depend on geoip-database instead

---
 LICENSE.txt                                   |   3 +
 build.xml                                     |  13 +-
 debian/control                                |   4 +-
 debian/repack.sh                              |   2 +
 .../java/src/com/maxmind/geoip/Country.java   |  63 ++
 .../src/com/maxmind/geoip/DatabaseInfo.java   | 128 +++
 .../geoip/InvalidDatabaseException.java       |  26 +
 .../java/src/com/maxmind/geoip/Location.java  |  62 ++
 .../src/com/maxmind/geoip/LookupService.java  | 988 ++++++++++++++++++
 router/java/src/com/maxmind/geoip/Region.java |   7 +
 .../java/src/com/maxmind/geoip/package.html   |  15 +
 .../src/net/i2p/router/transport/GeoIP.java   | 118 ++-
 12 files changed, 1405 insertions(+), 24 deletions(-)
 create mode 100644 router/java/src/com/maxmind/geoip/Country.java
 create mode 100644 router/java/src/com/maxmind/geoip/DatabaseInfo.java
 create mode 100644 router/java/src/com/maxmind/geoip/InvalidDatabaseException.java
 create mode 100644 router/java/src/com/maxmind/geoip/Location.java
 create mode 100644 router/java/src/com/maxmind/geoip/LookupService.java
 create mode 100644 router/java/src/com/maxmind/geoip/Region.java
 create mode 100644 router/java/src/com/maxmind/geoip/package.html

diff --git a/LICENSE.txt b/LICENSE.txt
index 99c83c33d..bc8d615ae 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -103,6 +103,9 @@ Public domain except as listed below:
    http://creativecommons.org/licenses/by-sa/3.0/
    This product includes GeoLite data created by MaxMind, available from http://www.maxmind.com/
 
+   GeoIP API 1.3.1:
+   See licenses/LICENSE-LGPLv2.1.txt
+
 
 Installer:
    Launch4j 3.0.1:
diff --git a/build.xml b/build.xml
index ea5426fa0..80a35b55b 100644
--- a/build.xml
+++ b/build.xml
@@ -699,7 +699,7 @@
             windowtitle="I2P Anonymous Network - Java Documentation - Version ${release.number}">
             <group title="Core SDK (i2p.jar)" packages="net.i2p:net.i2p.*:net.i2p.client:net.i2p.client.*:net.i2p.internal:net.i2p.internal.*:freenet.support.CPUInformation:org.bouncycastle.oldcrypto:org.bouncycastle.oldcrypto.*:gnu.crypto.*:gnu.getopt:gnu.gettext:com.nettgryppa.security:net.metanotion:net.metanotion.*:org.apache.http.conn.ssl:org.apache.http.conn.util:org.apache.http.util" />
             <group title="Streaming Library" packages="net.i2p.client.streaming:net.i2p.client.streaming.impl" />
-            <group title="Router" packages="net.i2p.router:net.i2p.router.*:net.i2p.data.i2np:net.i2p.data.router:org.cybergarage:org.cybergarage.*:org.freenetproject:org.xlattice.crypto.filters" />
+            <group title="Router" packages="net.i2p.router:net.i2p.router.*:net.i2p.data.i2np:net.i2p.data.router:org.cybergarage:org.cybergarage.*:org.freenetproject:org.xlattice.crypto.filters:com.maxmind.geoip" />
             <group title="Router Console" packages="net.i2p.router.web:net.i2p.router.update:net.i2p.router.news" />
             <!-- apps and bridges starting here, alphabetical please -->
             <group title="Addressbook Application" packages="net.i2p.addressbook" />
@@ -1478,10 +1478,13 @@
         <copy file="build/jbigi.jar" todir="pkg-temp/lib/" />
     </target>
 
-    <!-- GeoIP files and flag icons -->
+    <!-- GeoIP files -->
     <target name="prepgeoupdate">
-        <copy file="installer/resources/geoip.txt" todir="pkg-temp/geoip/" />
-        <copy file="installer/resources/geoipv6.dat.gz" todir="pkg-temp/geoip/" />
+        <copy todir="pkg-temp/geoip/" >
+            <!-- We use a fileset here so it doesn't fail if the files don't exist.
+                 As of 0.9.26, the files are not included in Debian/Ubuntu builds. -->
+            <fileset dir="installer/resources" includes="geoip.txt geoipv6.dat.gz" />
+        </copy>
         <copy file="installer/resources/countries.txt" todir="pkg-temp/geoip/" />
         <copy file="installer/resources/continents.txt" todir="pkg-temp/geoip/" />
       <!--
@@ -1986,6 +1989,8 @@
                 <include name="**/**" />
                 <exclude name="debian/**"/>
                 <exclude name="**/*.sh"/>
+                <exclude name="installer/resources/geoip.txt"/>
+                <exclude name="installer/resources/geoipv6.dat.gz"/>
             </tarfileset>
             <tarfileset dir="../i2p-${Extended.Version}" prefix="/i2p-${Extended.Version}" filemode="755">
                 <exclude name="debian/**" />
diff --git a/debian/control b/debian/control
index e56a71ac9..109a6ee7e 100644
--- a/debian/control
+++ b/debian/control
@@ -70,7 +70,9 @@ Architecture: all
 Section: net
 Priority: optional
 Depends: ${misc:Depends}, ${java:Depends}, ${shlibs:Depends},
- openjdk-8-jre-headless | openjdk-7-jre-headless | default-jre-headless | java8-runtime-headless | java7-runtime-headless, libecj-java
+ openjdk-8-jre-headless | openjdk-7-jre-headless | default-jre-headless | java8-runtime-headless | java7-runtime-headless,
+ libecj-java,
+ geoip-database
 Replaces: i2p ( << 0.8.6-5)
 Breaks: i2p (<< 0.8.6-5)
 Recommends: libjbigi-jni, ttf-dejavu
diff --git a/debian/repack.sh b/debian/repack.sh
index ed58b2b1c..a3a54d6d0 100755
--- a/debian/repack.sh
+++ b/debian/repack.sh
@@ -28,6 +28,8 @@ cp -f ${tarball} "$tarball.bkp"
 echo "Filtering tarball contents..."
 bzcat "$tarball" | tar --wildcards --delete '*/installer/lib/*' \
                         --delete '*/Slackware/*' \
+                        --delete '*/installer/resources/geoip.txt' \
+                        --delete '*/installer/resources/geoipv6.dat.gz' \
                         --delete '*/debian/*' > "$tdir/${fname}"
 
 echo "Compressing filtered tarball..."
diff --git a/router/java/src/com/maxmind/geoip/Country.java b/router/java/src/com/maxmind/geoip/Country.java
new file mode 100644
index 000000000..dbd3a4e7a
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/Country.java
@@ -0,0 +1,63 @@
+/**
+ * Country.java
+ *
+ * Copyright (C) 2003 MaxMind LLC.  All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+package com.maxmind.geoip;
+
+/**
+ * Represents a country.
+ * 
+ * @author Matt Tucker
+ */
+public class Country {
+
+	private String code;
+	private String name;
+
+	/**
+	 * Creates a new Country.
+	 * 
+	 * @param code
+	 *            the country code.
+	 * @param name
+	 *            the country name.
+	 */
+	public Country(String code, String name) {
+		this.code = code;
+		this.name = name;
+	}
+
+	/**
+	 * Returns the ISO two-letter country code of this country.
+	 * 
+	 * @return the country code.
+	 */
+	public String getCode() {
+		return code;
+	}
+
+	/**
+	 * Returns the name of this country.
+	 * 
+	 * @return the country name.
+	 */
+	public String getName() {
+		return name;
+	}
+}
diff --git a/router/java/src/com/maxmind/geoip/DatabaseInfo.java b/router/java/src/com/maxmind/geoip/DatabaseInfo.java
new file mode 100644
index 000000000..78ff7033d
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/DatabaseInfo.java
@@ -0,0 +1,128 @@
+/**
+ * DatabaseInfo.java
+ *
+ * Copyright (C) 2003 MaxMind LLC.  All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+package com.maxmind.geoip;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * Encapsulates metadata about the GeoIP database. The database has a date, is a
+ * premium or standard version, and is one of the following types:
+ *
+ * <ul>
+ * <li>Country edition -- this is the most common version of the database. It
+ * includes the name of the country and it's ISO country code given an IP
+ * address.
+ * <li>Region edition -- includes the country information as well as what U.S.
+ * state or Canadian province the IP address is from if the IP address is from
+ * the U.S. or Canada.
+ * <li>City edition -- includes country, region, city, postal code, latitude,
+ * and longitude information.
+ * <li>Org edition -- includes netblock owner.
+ * <li>ISP edition -- ISP information.
+ * </ul>
+ *
+ * @see com.maxmind.geoip.LookupService#getDatabaseInfo()
+ * @author Matt Tucker
+ */
+public class DatabaseInfo {
+
+    public static final int COUNTRY_EDITION = 1;
+    public static final int REGION_EDITION_REV0 = 7;
+    public static final int REGION_EDITION_REV1 = 3;
+    public static final int CITY_EDITION_REV0 = 6;
+    public static final int CITY_EDITION_REV1 = 2;
+    public static final int ORG_EDITION = 5;
+    public static final int ISP_EDITION = 4;
+    public static final int PROXY_EDITION = 8;
+    public static final int ASNUM_EDITION = 9;
+    public static final int NETSPEED_EDITION = 10;
+    public static final int DOMAIN_EDITION = 11;
+    public static final int COUNTRY_EDITION_V6 = 12;
+    public static final int ASNUM_EDITION_V6 = 21;
+    public static final int ISP_EDITION_V6 = 22;
+    public static final int ORG_EDITION_V6 = 23;
+    public static final int DOMAIN_EDITION_V6 = 24;
+    public static final int CITY_EDITION_REV1_V6 = 30;
+    public static final int CITY_EDITION_REV0_V6 = 31;
+    public static final int NETSPEED_EDITION_REV1 = 32;
+    public static final int NETSPEED_EDITION_REV1_V6 = 33;
+
+    private static SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
+
+    private String info;
+
+    /**
+     * Creates a new DatabaseInfo object given the database info String.
+     *
+     * @param info
+     */
+    public DatabaseInfo(String info) {
+        this.info = info;
+    }
+
+    public int getType() {
+        if (info == null || info.length() == 0) {
+            return COUNTRY_EDITION;
+        } else {
+            // Get the type code from the database info string and then
+            // subtract 105 from the value to preserve compatability with
+            // databases from April 2003 and earlier.
+            return Integer.parseInt(info.substring(4, 7)) - 105;
+        }
+    }
+
+    /**
+     * Returns true if the database is the premium version.
+     *
+     * @return true if the premium version of the database.
+     */
+    public boolean isPremium() {
+        return !info.contains("FREE");
+    }
+
+    /**
+     * Returns the date of the database.
+     *
+     * @return the date of the database.
+     */
+    public Date getDate() {
+        for (int i = 0; i < info.length() - 9; i++) {
+            if (Character.isWhitespace(info.charAt(i))) {
+                String dateString = info.substring(i + 1, i + 9);
+                try {
+                    synchronized (formatter) {
+                        return formatter.parse(dateString);
+                    }
+                } catch (ParseException pe) {
+                }
+                break;
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public String toString() {
+        return info;
+    }
+}
diff --git a/router/java/src/com/maxmind/geoip/InvalidDatabaseException.java b/router/java/src/com/maxmind/geoip/InvalidDatabaseException.java
new file mode 100644
index 000000000..c5dde17c2
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/InvalidDatabaseException.java
@@ -0,0 +1,26 @@
+package com.maxmind.geoip;
+
+import java.io.IOException;
+
+/**
+ * Signals that there was an issue reading from the database file due to
+ * unexpected data formatting. This generally suggests that the database is
+ * corrupt or otherwise not in a format supported by the reader.
+ */
+public final class InvalidDatabaseException extends RuntimeException {
+
+    /**
+     * @param message A message describing the reason why the exception was thrown.
+     */
+    public InvalidDatabaseException(String message) {
+        super(message);
+    }
+
+    /**
+     * @param message A message describing the reason why the exception was thrown.
+     * @param cause   The cause of the exception.
+     */
+    public InvalidDatabaseException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}
\ No newline at end of file
diff --git a/router/java/src/com/maxmind/geoip/Location.java b/router/java/src/com/maxmind/geoip/Location.java
new file mode 100644
index 000000000..807699069
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/Location.java
@@ -0,0 +1,62 @@
+/**
+ * Location.java
+ *
+ * Copyright (C) 2004 MaxMind LLC.  All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Lesser Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+package com.maxmind.geoip;
+
+public class Location {
+	public String countryCode;
+	public String countryName;
+	public String region;
+	public String city;
+	public String postalCode;
+	public float latitude;
+	public float longitude;
+	public int dma_code;
+	public int area_code;
+	public int metro_code;
+
+	private final static double EARTH_DIAMETER = 2 * 6378.2;
+	private final static double PI = 3.14159265;
+	private final static double RAD_CONVERT = PI / 180;
+
+	public double distance(Location loc) {
+		double delta_lat, delta_lon;
+		double temp;
+
+		float lat1 = latitude;
+		float lon1 = longitude;
+		float lat2 = loc.latitude;
+		float lon2 = loc.longitude;
+
+		// convert degrees to radians
+		lat1 *= RAD_CONVERT;
+		lat2 *= RAD_CONVERT;
+
+		// find the deltas
+		delta_lat = lat2 - lat1;
+		delta_lon = (lon2 - lon1) * RAD_CONVERT;
+
+		// Find the great circle distance
+		temp = Math.pow(Math.sin(delta_lat / 2), 2) + Math.cos(lat1)
+				* Math.cos(lat2) * Math.pow(Math.sin(delta_lon / 2), 2);
+		return EARTH_DIAMETER
+				* Math.atan2(Math.sqrt(temp), Math.sqrt(1 - temp));
+	}
+}
diff --git a/router/java/src/com/maxmind/geoip/LookupService.java b/router/java/src/com/maxmind/geoip/LookupService.java
new file mode 100644
index 000000000..94687fb55
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/LookupService.java
@@ -0,0 +1,988 @@
+/*
+ * LookupService.java
+ *
+ * Copyright (C) 2003 MaxMind LLC. All Rights Reserved.
+ *
+ * This library is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option) any
+ * later version.
+ *
+ * This library 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 Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+package com.maxmind.geoip;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.nio.ByteBuffer;
+import java.nio.charset.CharacterCodingException;
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetDecoder;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Provides a lookup service for information based on an IP address. The
+ * location of a database file is supplied when creating a lookup service
+ * instance. The edition of the database determines what information is
+ * available about an IP address. See the DatabaseInfo class for further
+ * details.
+ * <p>
+ *
+ * The following code snippet demonstrates looking up the country that an IP
+ * address is from:
+ *
+ * <pre>
+ * // First, create a LookupService instance with the location of the database.
+ * LookupService lookupService = new LookupService(&quot;c:\\geoip.dat&quot;);
+ * // Assume we have a String ipAddress (in dot-decimal form).
+ * Country country = lookupService.getCountry(ipAddress);
+ * System.out.println(&quot;The country is: &quot; + country.getName());
+ * System.out.println(&quot;The country code is: &quot; + country.getCode());
+ * </pre>
+ *
+ * In general, a single LookupService instance should be created and then reused
+ * repeatedly.
+ * <p>
+ *
+ * <i>Tip:</i> Those deploying the GeoIP API as part of a web application may
+ * find it difficult to pass in a File to create the lookup service, as the
+ * location of the database may vary per deployment or may even be part of the
+ * web-application. In this case, the database should be added to the classpath
+ * of the web-app. For example, by putting it into the WEB-INF/classes directory
+ * of the web application. The following code snippet demonstrates how to create
+ * a LookupService using a database that can be found on the classpath:
+ *
+ * <pre>
+ * String fileName = getClass().getResource(&quot;/GeoIP.dat&quot;).toExternalForm()
+ *         .substring(6);
+ * LookupService lookupService = new LookupService(fileName);
+ * </pre>
+ *
+ * @author Matt Tucker (matt@jivesoftware.com)
+ */
+public class LookupService {
+
+    /**
+     * Database file.
+     */
+    private RandomAccessFile file;
+    private final File databaseFile;
+
+    /**
+     * Information about the database.
+     */
+    private DatabaseInfo databaseInfo;
+
+    private static final Charset charset = Charset.forName("ISO-8859-1");
+    private final CharsetDecoder charsetDecoder = charset.newDecoder();
+
+    /**
+     * The database type. Default is the country edition.
+     */
+    private byte databaseType = DatabaseInfo.COUNTRY_EDITION;
+
+    private int[] databaseSegments;
+    private int recordLength;
+
+    private int dboptions;
+    private byte[] dbbuffer;
+    private byte[] index_cache;
+    private long mtime;
+    private int last_netmask;
+    private static final int US_OFFSET = 1;
+    private static final int CANADA_OFFSET = 677;
+    private static final int WORLD_OFFSET = 1353;
+    private static final int FIPS_RANGE = 360;
+    private static final int COUNTRY_BEGIN = 16776960;
+    private static final int STATE_BEGIN_REV0 = 16700000;
+    private static final int STATE_BEGIN_REV1 = 16000000;
+    private static final int STRUCTURE_INFO_MAX_SIZE = 20;
+    private static final int DATABASE_INFO_MAX_SIZE = 100;
+    public static final int GEOIP_STANDARD = 0;
+    public static final int GEOIP_MEMORY_CACHE = 1;
+    public static final int GEOIP_CHECK_CACHE = 2;
+    public static final int GEOIP_INDEX_CACHE = 4;
+    public static final int GEOIP_UNKNOWN_SPEED = 0;
+    public static final int GEOIP_DIALUP_SPEED = 1;
+    public static final int GEOIP_CABLEDSL_SPEED = 2;
+    public static final int GEOIP_CORPORATE_SPEED = 3;
+
+    private static final int SEGMENT_RECORD_LENGTH = 3;
+    private static final int STANDARD_RECORD_LENGTH = 3;
+    private static final int ORG_RECORD_LENGTH = 4;
+    private static final int MAX_RECORD_LENGTH = 4;
+
+    private static final int MAX_ORG_RECORD_LENGTH = 300;
+    private static final int FULL_RECORD_LENGTH = 60;
+
+    private final Country UNKNOWN_COUNTRY = new Country("--", "N/A");
+
+    private static final String[] countryCode = { "--", "AP", "EU", "AD", "AE",
+            "AF", "AG", "AI", "AL", "AM", "CW", "AO", "AQ", "AR", "AS", "AT",
+            "AU", "AW", "AZ", "BA", "BB", "BD", "BE", "BF", "BG", "BH", "BI",
+            "BJ", "BM", "BN", "BO", "BR", "BS", "BT", "BV", "BW", "BY", "BZ",
+            "CA", "CC", "CD", "CF", "CG", "CH", "CI", "CK", "CL", "CM", "CN",
+            "CO", "CR", "CU", "CV", "CX", "CY", "CZ", "DE", "DJ", "DK", "DM",
+            "DO", "DZ", "EC", "EE", "EG", "EH", "ER", "ES", "ET", "FI", "FJ",
+            "FK", "FM", "FO", "FR", "SX", "GA", "GB", "GD", "GE", "GF", "GH",
+            "GI", "GL", "GM", "GN", "GP", "GQ", "GR", "GS", "GT", "GU", "GW",
+            "GY", "HK", "HM", "HN", "HR", "HT", "HU", "ID", "IE", "IL", "IN",
+            "IO", "IQ", "IR", "IS", "IT", "JM", "JO", "JP", "KE", "KG", "KH",
+            "KI", "KM", "KN", "KP", "KR", "KW", "KY", "KZ", "LA", "LB", "LC",
+            "LI", "LK", "LR", "LS", "LT", "LU", "LV", "LY", "MA", "MC", "MD",
+            "MG", "MH", "MK", "ML", "MM", "MN", "MO", "MP", "MQ", "MR", "MS",
+            "MT", "MU", "MV", "MW", "MX", "MY", "MZ", "NA", "NC", "NE", "NF",
+            "NG", "NI", "NL", "NO", "NP", "NR", "NU", "NZ", "OM", "PA", "PE",
+            "PF", "PG", "PH", "PK", "PL", "PM", "PN", "PR", "PS", "PT", "PW",
+            "PY", "QA", "RE", "RO", "RU", "RW", "SA", "SB", "SC", "SD", "SE",
+            "SG", "SH", "SI", "SJ", "SK", "SL", "SM", "SN", "SO", "SR", "ST",
+            "SV", "SY", "SZ", "TC", "TD", "TF", "TG", "TH", "TJ", "TK", "TM",
+            "TN", "TO", "TL", "TR", "TT", "TV", "TW", "TZ", "UA", "UG", "UM",
+            "US", "UY", "UZ", "VA", "VC", "VE", "VG", "VI", "VN", "VU", "WF",
+            "WS", "YE", "YT", "RS", "ZA", "ZM", "ME", "ZW", "A1", "A2", "O1",
+            "AX", "GG", "IM", "JE", "BL", "MF", "BQ", "SS", "O1" };
+
+    private static final String[] countryName = { "N/A", "Asia/Pacific Region",
+            "Europe", "Andorra", "United Arab Emirates", "Afghanistan",
+            "Antigua and Barbuda", "Anguilla", "Albania", "Armenia", "Curacao",
+            "Angola", "Antarctica", "Argentina", "American Samoa", "Austria",
+            "Australia", "Aruba", "Azerbaijan", "Bosnia and Herzegovina",
+            "Barbados", "Bangladesh", "Belgium", "Burkina Faso", "Bulgaria",
+            "Bahrain", "Burundi", "Benin", "Bermuda", "Brunei Darussalam",
+            "Bolivia", "Brazil", "Bahamas", "Bhutan", "Bouvet Island",
+            "Botswana", "Belarus", "Belize", "Canada",
+            "Cocos (Keeling) Islands", "Congo, The Democratic Republic of the",
+            "Central African Republic", "Congo", "Switzerland",
+            "Cote D'Ivoire", "Cook Islands", "Chile", "Cameroon", "China",
+            "Colombia", "Costa Rica", "Cuba", "Cape Verde", "Christmas Island",
+            "Cyprus", "Czech Republic", "Germany", "Djibouti", "Denmark",
+            "Dominica", "Dominican Republic", "Algeria", "Ecuador", "Estonia",
+            "Egypt", "Western Sahara", "Eritrea", "Spain", "Ethiopia",
+            "Finland", "Fiji", "Falkland Islands (Malvinas)",
+            "Micronesia, Federated States of", "Faroe Islands", "France",
+            "Sint Maarten (Dutch part)", "Gabon", "United Kingdom", "Grenada",
+            "Georgia", "French Guiana", "Ghana", "Gibraltar", "Greenland",
+            "Gambia", "Guinea", "Guadeloupe", "Equatorial Guinea", "Greece",
+            "South Georgia and the South Sandwich Islands", "Guatemala",
+            "Guam", "Guinea-Bissau", "Guyana", "Hong Kong",
+            "Heard Island and McDonald Islands", "Honduras", "Croatia",
+            "Haiti", "Hungary", "Indonesia", "Ireland", "Israel", "India",
+            "British Indian Ocean Territory", "Iraq",
+            "Iran, Islamic Republic of", "Iceland", "Italy", "Jamaica",
+            "Jordan", "Japan", "Kenya", "Kyrgyzstan", "Cambodia", "Kiribati",
+            "Comoros", "Saint Kitts and Nevis",
+            "Korea, Democratic People's Republic of", "Korea, Republic of",
+            "Kuwait", "Cayman Islands", "Kazakhstan",
+            "Lao People's Democratic Republic", "Lebanon", "Saint Lucia",
+            "Liechtenstein", "Sri Lanka", "Liberia", "Lesotho", "Lithuania",
+            "Luxembourg", "Latvia", "Libya", "Morocco", "Monaco",
+            "Moldova, Republic of", "Madagascar", "Marshall Islands",
+            "Macedonia", "Mali", "Myanmar", "Mongolia", "Macau",
+            "Northern Mariana Islands", "Martinique", "Mauritania",
+            "Montserrat", "Malta", "Mauritius", "Maldives", "Malawi", "Mexico",
+            "Malaysia", "Mozambique", "Namibia", "New Caledonia", "Niger",
+            "Norfolk Island", "Nigeria", "Nicaragua", "Netherlands", "Norway",
+            "Nepal", "Nauru", "Niue", "New Zealand", "Oman", "Panama", "Peru",
+            "French Polynesia", "Papua New Guinea", "Philippines", "Pakistan",
+            "Poland", "Saint Pierre and Miquelon", "Pitcairn Islands",
+            "Puerto Rico", "Palestinian Territory", "Portugal", "Palau",
+            "Paraguay", "Qatar", "Reunion", "Romania", "Russian Federation",
+            "Rwanda", "Saudi Arabia", "Solomon Islands", "Seychelles", "Sudan",
+            "Sweden", "Singapore", "Saint Helena", "Slovenia",
+            "Svalbard and Jan Mayen", "Slovakia", "Sierra Leone", "San Marino",
+            "Senegal", "Somalia", "Suriname", "Sao Tome and Principe",
+            "El Salvador", "Syrian Arab Republic", "Swaziland",
+            "Turks and Caicos Islands", "Chad", "French Southern Territories",
+            "Togo", "Thailand", "Tajikistan", "Tokelau", "Turkmenistan",
+            "Tunisia", "Tonga", "Timor-Leste", "Turkey", "Trinidad and Tobago",
+            "Tuvalu", "Taiwan", "Tanzania, United Republic of", "Ukraine",
+            "Uganda", "United States Minor Outlying Islands", "United States",
+            "Uruguay", "Uzbekistan", "Holy See (Vatican City State)",
+            "Saint Vincent and the Grenadines", "Venezuela",
+            "Virgin Islands, British", "Virgin Islands, U.S.", "Vietnam",
+            "Vanuatu", "Wallis and Futuna", "Samoa", "Yemen", "Mayotte",
+            "Serbia", "South Africa", "Zambia", "Montenegro", "Zimbabwe",
+            "Anonymous Proxy", "Satellite Provider", "Other", "Aland Islands",
+            "Guernsey", "Isle of Man", "Jersey", "Saint Barthelemy",
+            "Saint Martin", "Bonaire, Saint Eustatius and Saba", "South Sudan",
+            "Other" };
+
+    /* init the hashmap once at startup time */
+    static {
+        if (countryCode.length != countryName.length) {
+            throw new AssertionError("countryCode.length!=countryName.length");
+        }
+    }
+
+    /**
+     * Create a new lookup service using the specified database file.
+     *
+     * @param databaseFile
+     *            String representation of the database file.
+     * @throws IOException
+     *             if an error occured creating the lookup service from the
+     *             database file.
+     */
+    public LookupService(String databaseFile) throws IOException {
+        this(new File(databaseFile));
+    }
+
+    /**
+     * Create a new lookup service using the specified database file.
+     *
+     * @param databaseFile
+     *            the database file.
+     * @throws IOException
+     *             if an error occured creating the lookup service from the
+     *             database file.
+     */
+    public LookupService(File databaseFile) throws IOException {
+        this.databaseFile = databaseFile;
+        file = new RandomAccessFile(databaseFile, "r");
+        init();
+    }
+
+    /**
+     * Create a new lookup service using the specified database file.
+     *
+     * @param databaseFile
+     *            String representation of the database file.
+     * @param options
+     *            database flags to use when opening the database GEOIP_STANDARD
+     *            read database from disk GEOIP_MEMORY_CACHE cache the database
+     *            in RAM and read it from RAM
+     * @throws IOException
+     *             if an error occured creating the lookup service from the
+     *             database file.
+     */
+    public LookupService(String databaseFile, int options) throws IOException {
+        this(new File(databaseFile), options);
+    }
+
+    /**
+     * Create a new lookup service using the specified database file.
+     *
+     * @param databaseFile
+     *            the database file.
+     * @param options
+     *            database flags to use when opening the database GEOIP_STANDARD
+     *            read database from disk GEOIP_MEMORY_CACHE cache the database
+     *            in RAM and read it from RAM
+     * @throws IOException
+     *             if an error occured creating the lookup service from the
+     *             database file.
+     */
+    public LookupService(File databaseFile, int options) throws IOException {
+        this.databaseFile = databaseFile;
+        file = new RandomAccessFile(databaseFile, "r");
+        dboptions = options;
+        init();
+    }
+
+    /**
+     * Reads meta-data from the database file.
+     *
+     * @throws IOException
+     *             if an error occurs reading from the database file.
+     */
+    private synchronized void init() throws IOException {
+        byte[] delim = new byte[3];
+        byte[] buf = new byte[SEGMENT_RECORD_LENGTH];
+
+        if (file == null) {
+            return;
+        }
+        if ((dboptions & GEOIP_CHECK_CACHE) != 0) {
+            mtime = databaseFile.lastModified();
+        }
+        file.seek(file.length() - 3);
+        for (int i = 0; i < STRUCTURE_INFO_MAX_SIZE; i++) {
+            file.readFully(delim);
+            if (delim[0] == -1 && delim[1] == -1 && delim[2] == -1) {
+                databaseType = file.readByte();
+                if (databaseType >= 106) {
+                    // Backward compatibility with databases from April 2003 and
+                    // earlier
+                    databaseType -= 105;
+                }
+                // Determine the database type.
+                if (databaseType == DatabaseInfo.REGION_EDITION_REV0) {
+                    databaseSegments = new int[1];
+                    databaseSegments[0] = STATE_BEGIN_REV0;
+                    recordLength = STANDARD_RECORD_LENGTH;
+                } else if (databaseType == DatabaseInfo.REGION_EDITION_REV1) {
+                    databaseSegments = new int[1];
+                    databaseSegments[0] = STATE_BEGIN_REV1;
+                    recordLength = STANDARD_RECORD_LENGTH;
+                } else if (databaseType == DatabaseInfo.CITY_EDITION_REV0
+                        || databaseType == DatabaseInfo.CITY_EDITION_REV1
+                        || databaseType == DatabaseInfo.ORG_EDITION
+                        || databaseType == DatabaseInfo.ORG_EDITION_V6
+                        || databaseType == DatabaseInfo.ISP_EDITION
+                        || databaseType == DatabaseInfo.ISP_EDITION_V6
+                        || databaseType == DatabaseInfo.DOMAIN_EDITION
+                        || databaseType == DatabaseInfo.DOMAIN_EDITION_V6
+                        || databaseType == DatabaseInfo.ASNUM_EDITION
+                        || databaseType == DatabaseInfo.ASNUM_EDITION_V6
+                        || databaseType == DatabaseInfo.NETSPEED_EDITION_REV1
+                        || databaseType == DatabaseInfo.NETSPEED_EDITION_REV1_V6
+                        || databaseType == DatabaseInfo.CITY_EDITION_REV0_V6
+                        || databaseType == DatabaseInfo.CITY_EDITION_REV1_V6) {
+                    databaseSegments = new int[1];
+                    databaseSegments[0] = 0;
+                    if (databaseType == DatabaseInfo.CITY_EDITION_REV0
+                            || databaseType == DatabaseInfo.CITY_EDITION_REV1
+                            || databaseType == DatabaseInfo.ASNUM_EDITION_V6
+                            || databaseType == DatabaseInfo.NETSPEED_EDITION_REV1
+                            || databaseType == DatabaseInfo.NETSPEED_EDITION_REV1_V6
+                            || databaseType == DatabaseInfo.CITY_EDITION_REV0_V6
+                            || databaseType == DatabaseInfo.CITY_EDITION_REV1_V6
+                            || databaseType == DatabaseInfo.ASNUM_EDITION) {
+                        recordLength = STANDARD_RECORD_LENGTH;
+                    } else {
+                        recordLength = ORG_RECORD_LENGTH;
+                    }
+                    file.readFully(buf);
+                    for (int j = 0; j < SEGMENT_RECORD_LENGTH; j++) {
+                        databaseSegments[0] += (unsignedByteToInt(buf[j]) << (j * 8));
+                    }
+                }
+                break;
+            } else {
+                file.seek(file.getFilePointer() - 4);
+            }
+        }
+        if ((databaseType == DatabaseInfo.COUNTRY_EDITION)
+                || (databaseType == DatabaseInfo.COUNTRY_EDITION_V6)
+                || (databaseType == DatabaseInfo.PROXY_EDITION)
+                || (databaseType == DatabaseInfo.NETSPEED_EDITION)) {
+            databaseSegments = new int[1];
+            databaseSegments[0] = COUNTRY_BEGIN;
+            recordLength = STANDARD_RECORD_LENGTH;
+        }
+        if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
+            int l = (int) file.length();
+            dbbuffer = new byte[l];
+            file.seek(0);
+            file.readFully(dbbuffer, 0, l);
+            databaseInfo = getDatabaseInfo();
+            file.close();
+        }
+        if ((dboptions & GEOIP_INDEX_CACHE) != 0) {
+            int l = databaseSegments[0] * recordLength * 2;
+            index_cache = new byte[l];
+            file.seek(0);
+            file.readFully(index_cache, 0, l);
+        } else {
+            index_cache = null;
+        }
+    }
+
+    /**
+     * Closes the lookup service.
+     */
+    public synchronized void close() {
+        try {
+            if (file != null) {
+                file.close();
+            }
+            file = null;
+        } catch (IOException e) {
+            // Here for backward compatibility.
+        }
+    }
+
+    /**
+     * @return The list of all known country names
+     */
+    public List<String> getAllCountryNames() {
+        return Arrays.asList(Arrays.copyOf(countryName, countryName.length));
+    }
+    
+    /**
+     * @return The list of all known country codes
+     */
+    public List<String> getAllCountryCodes() {
+        return Arrays.asList(Arrays.copyOf(countryCode, countryCode.length));
+    }
+    
+    /**
+     * Returns the country the IP address is in.
+     *
+     * @param ipAddress
+     *            String version of an IPv6 address, i.e. "::127.0.0.1"
+     * @return the country the IP address is from.
+     */
+    public Country getCountryV6(String ipAddress) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(ipAddress);
+        } catch (UnknownHostException e) {
+            return UNKNOWN_COUNTRY;
+        }
+        return getCountryV6(addr);
+    }
+
+    /**
+     * Returns the country the IP address is in.
+     *
+     * @param ipAddress
+     *            String version of an IP address, i.e. "127.0.0.1"
+     * @return the country the IP address is from.
+     */
+    public Country getCountry(String ipAddress) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(ipAddress);
+        } catch (UnknownHostException e) {
+            return UNKNOWN_COUNTRY;
+        }
+        return getCountry(addr);
+    }
+
+    /**
+     * Returns the country the IP address is in.
+     *
+     * @param ipAddress
+     *            the IP address.
+     * @return the country the IP address is from.
+     */
+    public synchronized Country getCountry(InetAddress ipAddress) {
+        return getCountry(bytesToLong(ipAddress.getAddress()));
+    }
+
+    /**
+     * Returns the country the IP address is in.
+     *
+     * @param addr
+     *            the IP address as Inet6Address.
+     * @return the country the IP address is from.
+     */
+    public synchronized Country getCountryV6(InetAddress addr) {
+        if (file == null && (dboptions & GEOIP_MEMORY_CACHE) == 0) {
+            throw new IllegalStateException("Database has been closed.");
+        }
+        int ret = seekCountryV6(addr) - COUNTRY_BEGIN;
+        if (ret == 0) {
+            return UNKNOWN_COUNTRY;
+        } else {
+            return new Country(countryCode[ret], countryName[ret]);
+        }
+    }
+
+    /**
+     * Returns the country the IP address is in.
+     *
+     * @param ipAddress
+     *            the IP address in long format.
+     * @return the country the IP address is from.
+     */
+    public synchronized Country getCountry(long ipAddress) {
+        if (file == null && (dboptions & GEOIP_MEMORY_CACHE) == 0) {
+            throw new IllegalStateException("Database has been closed.");
+        }
+        int ret = seekCountry(ipAddress) - COUNTRY_BEGIN;
+        if (ret == 0) {
+            return UNKNOWN_COUNTRY;
+        } else {
+            return new Country(countryCode[ret], countryName[ret]);
+        }
+    }
+
+    public int getID(String ipAddress) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(ipAddress);
+        } catch (UnknownHostException e) {
+            return 0;
+        }
+        return getID(bytesToLong(addr.getAddress()));
+    }
+
+    public int getID(InetAddress ipAddress) {
+        return getID(bytesToLong(ipAddress.getAddress()));
+    }
+
+    public synchronized int getID(long ipAddress) {
+        if (file == null && (dboptions & GEOIP_MEMORY_CACHE) == 0) {
+            throw new IllegalStateException("Database has been closed.");
+        }
+        return seekCountry(ipAddress) - databaseSegments[0];
+    }
+
+    public int last_netmask() {
+        return last_netmask;
+    }
+
+    public void netmask(int nm) {
+        last_netmask = nm;
+    }
+
+    /**
+     * Returns information about the database.
+     *
+     * @return database info.
+     */
+    public synchronized DatabaseInfo getDatabaseInfo() {
+        if (databaseInfo != null) {
+            return databaseInfo;
+        }
+        try {
+            _check_mtime();
+            boolean hasStructureInfo = false;
+            byte[] delim = new byte[3];
+            // Advance to part of file where database info is stored.
+            file.seek(file.length() - 3);
+            for (int i = 0; i < STRUCTURE_INFO_MAX_SIZE; i++) {
+                int read = file.read(delim);
+                if (read == 3 && (delim[0] & 0xFF) == 255
+                        && (delim[1] & 0xFF) == 255 && (delim[2] & 0xFF) == 255) {
+                    hasStructureInfo = true;
+                    break;
+                }
+                file.seek(file.getFilePointer() - 4);
+
+            }
+            if (hasStructureInfo) {
+                file.seek(file.getFilePointer() - 6);
+            } else {
+                // No structure info, must be pre Sep 2002 database, go back to
+                // end.
+                file.seek(file.length() - 3);
+            }
+            // Find the database info string.
+            for (int i = 0; i < DATABASE_INFO_MAX_SIZE; i++) {
+                file.readFully(delim);
+                if (delim[0] == 0 && delim[1] == 0 && delim[2] == 0) {
+                    byte[] dbInfo = new byte[i];
+                    file.readFully(dbInfo);
+                    // Create the database info object using the string.
+                    databaseInfo = new DatabaseInfo(new String(dbInfo, charset));
+                    return databaseInfo;
+                }
+                file.seek(file.getFilePointer() - 4);
+            }
+        } catch (IOException e) {
+            throw new InvalidDatabaseException("Error reading database info", e);
+        }
+        return new DatabaseInfo("");
+    }
+
+    synchronized void _check_mtime() {
+        try {
+            if ((dboptions & GEOIP_CHECK_CACHE) != 0) {
+                long t = databaseFile.lastModified();
+                if (t != mtime) {
+                    /* GeoIP Database file updated */
+                    /* refresh filehandle */
+                    close();
+                    file = new RandomAccessFile(databaseFile, "r");
+                    databaseInfo = null;
+                    init();
+                }
+            }
+        } catch (IOException e) {
+            throw new InvalidDatabaseException("Database not found", e);
+        }
+    }
+
+    // for GeoIP City only
+    public Location getLocationV6(String str) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(str);
+        } catch (UnknownHostException e) {
+            return null;
+        }
+
+        return getLocationV6(addr);
+    }
+
+    // for GeoIP City only
+    public Location getLocation(InetAddress addr) {
+        return getLocation(bytesToLong(addr.getAddress()));
+    }
+
+    // for GeoIP City only
+    public Location getLocation(String str) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(str);
+        } catch (UnknownHostException e) {
+            return null;
+        }
+
+        return getLocation(addr);
+    }
+
+    public synchronized Region getRegion(String str) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(str);
+        } catch (UnknownHostException e) {
+            return null;
+        }
+
+        return getRegion(bytesToLong(addr.getAddress()));
+    }
+
+    public synchronized Region getRegion(InetAddress addr) {
+        return getRegion(bytesToLong(addr.getAddress()));
+    }
+
+    public synchronized Region getRegion(long ipnum) {
+        Region record = new Region();
+        int seek_region;
+        if (databaseType == DatabaseInfo.REGION_EDITION_REV0) {
+            seek_region = seekCountry(ipnum) - STATE_BEGIN_REV0;
+            char[] ch = new char[2];
+            if (seek_region >= 1000) {
+                record.countryCode = "US";
+                record.countryName = "United States";
+                ch[0] = (char) (((seek_region - 1000) / 26) + 65);
+                ch[1] = (char) (((seek_region - 1000) % 26) + 65);
+                record.region = new String(ch);
+            } else {
+                record.countryCode = countryCode[seek_region];
+                record.countryName = countryName[seek_region];
+                record.region = "";
+            }
+        } else if (databaseType == DatabaseInfo.REGION_EDITION_REV1) {
+            seek_region = seekCountry(ipnum) - STATE_BEGIN_REV1;
+            char[] ch = new char[2];
+            if (seek_region < US_OFFSET) {
+                record.countryCode = "";
+                record.countryName = "";
+                record.region = "";
+            } else if (seek_region < CANADA_OFFSET) {
+                record.countryCode = "US";
+                record.countryName = "United States";
+                ch[0] = (char) (((seek_region - US_OFFSET) / 26) + 65);
+                ch[1] = (char) (((seek_region - US_OFFSET) % 26) + 65);
+                record.region = new String(ch);
+            } else if (seek_region < WORLD_OFFSET) {
+                record.countryCode = "CA";
+                record.countryName = "Canada";
+                ch[0] = (char) (((seek_region - CANADA_OFFSET) / 26) + 65);
+                ch[1] = (char) (((seek_region - CANADA_OFFSET) % 26) + 65);
+                record.region = new String(ch);
+            } else {
+                record.countryCode = countryCode[(seek_region - WORLD_OFFSET)
+                        / FIPS_RANGE];
+                record.countryName = countryName[(seek_region - WORLD_OFFSET)
+                        / FIPS_RANGE];
+                record.region = "";
+            }
+        }
+        return record;
+    }
+
+    public synchronized Location getLocationV6(InetAddress addr) {
+        int seek_country;
+
+        try {
+            seek_country = seekCountryV6(addr);
+            return readCityRecord(seek_country);
+        } catch (IOException e) {
+            throw new InvalidDatabaseException("Error while seting up segments", e);
+        }
+    }
+
+    public synchronized Location getLocation(long ipnum) {
+        int seek_country;
+
+        try {
+            seek_country = seekCountry(ipnum);
+            return readCityRecord(seek_country);
+        } catch (IOException e) {
+            throw new InvalidDatabaseException("Error while seting up segments", e);
+        }
+    }
+
+    private Location readCityRecord(int seekCountry) throws IOException {
+        if (seekCountry == databaseSegments[0]) {
+            return null;
+        }
+        ByteBuffer buffer = readRecordBuf(seekCountry, FULL_RECORD_LENGTH);
+
+        Location record = new Location();
+        int country = unsignedByteToInt(buffer.get());
+
+        // get country
+        record.countryCode = countryCode[country];
+        record.countryName = countryName[country];
+
+        record.region = readString(buffer);
+        record.city = readString(buffer);
+        record.postalCode  = readString(buffer);
+        record.latitude = readAngle(buffer);
+        record.longitude = readAngle(buffer);
+
+        if (databaseType == DatabaseInfo.CITY_EDITION_REV1) {
+            // get DMA code
+            if ("US".equals(record.countryCode)) {
+                int metroarea_combo = readMetroAreaCombo(buffer);
+                record.metro_code = record.dma_code = metroarea_combo / 1000;
+                record.area_code = metroarea_combo % 1000;
+            }
+        }
+        return record;
+    }
+
+    private ByteBuffer readRecordBuf(int seek, int maxLength) throws IOException {
+
+        int recordPointer = seek + (2 * recordLength - 1)
+                * databaseSegments[0];
+
+        ByteBuffer buffer;
+        if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
+            buffer = ByteBuffer.wrap(dbbuffer, recordPointer, Math
+                    .min(dbbuffer.length - recordPointer, maxLength));
+        } else {
+            byte[] recordBuf = new byte[maxLength];
+            // read from disk
+            file.seek(recordPointer);
+            file.read(recordBuf);
+            buffer = ByteBuffer.wrap(recordBuf);
+        }
+        return buffer;
+    }
+
+
+    private String readString(ByteBuffer buffer) throws CharacterCodingException {
+        int start = buffer.position();
+        int oldLimit = buffer.limit();
+
+        while (buffer.hasRemaining() && buffer.get() != 0) {}
+
+        int end = buffer.position() - 1;
+        String str = null;
+        if (end > start) {
+            buffer.position(start);
+            buffer.limit(end);
+            str = charsetDecoder.decode(buffer).toString();
+            buffer.limit(oldLimit);
+        }
+        buffer.position(end + 1);
+        return str;
+    }
+
+    private static float readAngle(ByteBuffer buffer) {
+        if (buffer.remaining() < 3) {
+            throw new InvalidDatabaseException("Unexpected end of data record when reading angle");
+        }
+        double num = 0;
+        for (int j = 0; j < 3; j++) {
+            num += unsignedByteToInt(buffer.get()) << (j * 8);
+        }
+        return (float) num / 10000 - 180;
+    }
+
+    private static int readMetroAreaCombo(ByteBuffer buffer) {
+        if (buffer.remaining() < 3) {
+            throw new InvalidDatabaseException("Unexpected end of data record when reading metro area");
+        }
+        int metroareaCombo = 0;
+        for (int j = 0; j < 3; j++) {
+            metroareaCombo += unsignedByteToInt(buffer.get()) << (j * 8);
+        }
+        return metroareaCombo;
+    }
+
+    public String getOrg(InetAddress addr) {
+        return getOrg(bytesToLong(addr.getAddress()));
+    }
+
+    public String getOrg(String str) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(str);
+        } catch (UnknownHostException e) {
+            return null;
+        }
+        return getOrg(addr);
+    }
+
+    // GeoIP Organization and ISP Edition methods
+    public synchronized String getOrg(long ipnum) {
+        try {
+            int seekOrg = seekCountry(ipnum);
+            return readOrgRecord(seekOrg);
+
+        } catch (IOException e) {
+            throw new InvalidDatabaseException("Error while reading org", e);
+        }
+    }
+
+    public String getOrgV6(String str) {
+        InetAddress addr;
+        try {
+            addr = InetAddress.getByName(str);
+        } catch (UnknownHostException e) {
+            return null;
+        }
+        return getOrgV6(addr);
+    }
+
+    // GeoIP Organization and ISP Edition methods
+    public synchronized String getOrgV6(InetAddress addr) {
+          try {
+            int seekOrg = seekCountryV6(addr);
+             return readOrgRecord(seekOrg);
+        } catch (IOException e) {
+            throw new InvalidDatabaseException("Error while reading org", e);
+        }
+    }
+
+    private String readOrgRecord(int seekOrg) throws IOException {
+        if (seekOrg == databaseSegments[0]) {
+            return null;
+        }
+        ByteBuffer buf = readRecordBuf(seekOrg, MAX_ORG_RECORD_LENGTH);
+        return readString(buf);
+    }
+
+    /**
+     * Finds the country index value given an IPv6 address.
+     *
+     * @param addr
+     *            the ip address to find in long format.
+     * @return the country index.
+     */
+    private synchronized int seekCountryV6(InetAddress addr) {
+        byte[] v6vec = addr.getAddress();
+
+        if (v6vec.length == 4) {
+            // sometimes java returns an ipv4 address for IPv6 input
+            // we have to work around that feature
+            // It happens for ::ffff:24.24.24.24
+            byte[] t = new byte[16];
+            System.arraycopy(v6vec, 0, t, 12, 4);
+            v6vec = t;
+        }
+
+        byte[] buf = new byte[2 * MAX_RECORD_LENGTH];
+        int[] x = new int[2];
+        int offset = 0;
+        _check_mtime();
+        for (int depth = 127; depth >= 0; depth--) {
+            readNode(buf, x, offset);
+
+            int bnum = 127 - depth;
+            int idx = bnum >> 3;
+            int b_mask = 1 << (bnum & 7 ^ 7);
+            if ((v6vec[idx] & b_mask) > 0) {
+                if (x[1] >= databaseSegments[0]) {
+                    last_netmask = 128 - depth;
+                    return x[1];
+                }
+                offset = x[1];
+            } else {
+                if (x[0] >= databaseSegments[0]) {
+                    last_netmask = 128 - depth;
+                    return x[0];
+                }
+                offset = x[0];
+            }
+        }
+
+        throw new InvalidDatabaseException("Error seeking country while searching for "
+                + addr.getHostAddress());
+    }
+
+    /**
+     * Finds the country index value given an IP address.
+     *
+     * @param ipAddress
+     *            the ip address to find in long format.
+     * @return the country index.
+     */
+    private synchronized int seekCountry(long ipAddress) {
+        byte[] buf = new byte[2 * MAX_RECORD_LENGTH];
+        int[] x = new int[2];
+        int offset = 0;
+        _check_mtime();
+        for (int depth = 31; depth >= 0; depth--) {
+            readNode(buf, x, offset);
+
+            if ((ipAddress & (1 << depth)) > 0) {
+                if (x[1] >= databaseSegments[0]) {
+                    last_netmask = 32 - depth;
+                    return x[1];
+                }
+                offset = x[1];
+            } else {
+                if (x[0] >= databaseSegments[0]) {
+                    last_netmask = 32 - depth;
+                    return x[0];
+                }
+                offset = x[0];
+            }
+        }
+        throw new InvalidDatabaseException("Error seeking country while searching for "
+                + ipAddress);
+    }
+
+    private void readNode(byte[] buf, int[] x, int offset) {
+        if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
+            // read from memory
+            System.arraycopy(dbbuffer, (2 * recordLength * offset), buf, 0, 2 * recordLength);
+        } else if ((dboptions & GEOIP_INDEX_CACHE) != 0) {
+            // read from index cache
+            System.arraycopy(index_cache, (2 * recordLength * offset), buf, 0, 2 * recordLength);
+        } else {
+            // read from disk
+            try {
+                file.seek(2 * recordLength * offset);
+                file.read(buf);
+            }  catch (IOException e) {
+                throw new InvalidDatabaseException("Error seeking in database", e);
+            }
+        }
+        for (int i = 0; i < 2; i++) {
+            x[i] = 0;
+            for (int j = 0; j < recordLength; j++) {
+                int y = buf[i * recordLength + j];
+                if (y < 0) {
+                    y += 256;
+                }
+                x[i] += (y << (j * 8));
+            }
+        }
+    }
+
+    /**
+     * Returns the long version of an IP address given an InetAddress object.
+     *
+     * @param address
+     *            the InetAddress.
+     * @return the long form of the IP address.
+     */
+    private static long bytesToLong(byte[] address) {
+        long ipnum = 0;
+        for (int i = 0; i < 4; ++i) {
+            long y = address[i];
+            if (y < 0) {
+                y += 256;
+            }
+            ipnum += y << ((3 - i) * 8);
+        }
+        return ipnum;
+    }
+
+    private static int unsignedByteToInt(byte b) {
+        return (int) b & 0xFF;
+    }
+}
diff --git a/router/java/src/com/maxmind/geoip/Region.java b/router/java/src/com/maxmind/geoip/Region.java
new file mode 100644
index 000000000..d8f12632c
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/Region.java
@@ -0,0 +1,7 @@
+package com.maxmind.geoip;
+
+public class Region {
+	public String countryCode;
+	public String countryName;
+	public String region;
+}
\ No newline at end of file
diff --git a/router/java/src/com/maxmind/geoip/package.html b/router/java/src/com/maxmind/geoip/package.html
new file mode 100644
index 000000000..4f91804b9
--- /dev/null
+++ b/router/java/src/com/maxmind/geoip/package.html
@@ -0,0 +1,15 @@
+<html>
+<body>
+<p>
+This is geoip-api-java release 1.3.1 2016-02-08
+retrieved from <a href="https://github.com/maxmind/geoip-api-java">github</a>.
+It is used only on Debian-based systems where the geoip-database package
+is installed, with the files in /usr/share/GeoIP/ .
+See net.i2p.router.transport.GeoIP.
+</p><p>
+Unmodified, except that
+regionName.java and timeZone.java are omitted.
+LGPL v2.1.
+</p>
+</body>
+</html>
diff --git a/router/java/src/net/i2p/router/transport/GeoIP.java b/router/java/src/net/i2p/router/transport/GeoIP.java
index 6a2040164..222923dc7 100644
--- a/router/java/src/net/i2p/router/transport/GeoIP.java
+++ b/router/java/src/net/i2p/router/transport/GeoIP.java
@@ -16,6 +16,9 @@ import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import com.maxmind.geoip.InvalidDatabaseException;
+import com.maxmind.geoip.LookupService;
+
 import net.i2p.I2PAppContext;
 import net.i2p.data.DataHelper;
 import net.i2p.data.Hash;
@@ -24,6 +27,7 @@ import net.i2p.router.RouterContext;
 import net.i2p.util.Addresses;
 import net.i2p.util.ConcurrentHashSet;
 import net.i2p.util.Log;
+import net.i2p.util.SystemVersion;
 
 /**
  * Manage geoip lookup in a file with the Tor geoip format.
@@ -56,6 +60,20 @@ public class GeoIP {
     private final AtomicBoolean _lock;
     private int _lookupRunCount;
     
+    static final String PROP_GEOIP_ENABLED = "routerconsole.geoip.enable";
+    public static final String PROP_GEOIP_DIR = "geoip.dir";
+    public static final String GEOIP_DIR_DEFAULT = "geoip";
+    static final String GEOIP_FILE_DEFAULT = "geoip.txt";
+    static final String COUNTRY_FILE_DEFAULT = "countries.txt";
+    public static final String PROP_IP_COUNTRY = "i2np.lastCountry";
+    public static final String PROP_DEBIAN_GEOIP = "geoip.dat";
+    public static final String PROP_DEBIAN_GEOIPV6 = "geoip.v6.dat";
+    private static final String DEBIAN_GEOIP_FILE = "/usr/share/GeoIP/GeoIP.dat";
+    private static final String DEBIAN_GEOIPV6_FILE = "/usr/share/GeoIP/GeoIPv6.dat";
+    private static final boolean ENABLE_DEBIAN = !SystemVersion.isWindows();
+    /** maxmind API */
+    private static final String UNKNOWN_COUNTRY_CODE = "--";
+
     /**
      *  @param context RouterContext in production, I2PAppContext for testing only
      */
@@ -71,13 +89,6 @@ public class GeoIP {
         _lock = new AtomicBoolean();
         readCountryFile();
     }
-    
-    static final String PROP_GEOIP_ENABLED = "routerconsole.geoip.enable";
-    public static final String PROP_GEOIP_DIR = "geoip.dir";
-    public static final String GEOIP_DIR_DEFAULT = "geoip";
-    static final String GEOIP_FILE_DEFAULT = "geoip.txt";
-    static final String COUNTRY_FILE_DEFAULT = "countries.txt";
-    public static final String PROP_IP_COUNTRY = "i2np.lastCountry";
 
     /**
      *  @since 0.9.3
@@ -145,12 +156,39 @@ public class GeoIP {
                 _pendingSearch.clear();
                 if (search.length > 0) {
                     Arrays.sort(search);
-                    String[] countries = readGeoIPFile(search);
-                    for (int i = 0; i < countries.length; i++) {
-                        if (countries[i] != null)
-                            _IPToCountry.put(search[i], countries[i]);
-                        else
-                            _notFound.add(search[i]);
+                    File f = new File(_context.getProperty(PROP_DEBIAN_GEOIP, DEBIAN_GEOIP_FILE));
+                    if (ENABLE_DEBIAN && f.exists()) {
+                        // Maxmind database
+                        LookupService ls = null;
+                        try {
+                            ls = new LookupService(f, LookupService.GEOIP_STANDARD);
+                            for (int i = 0; i < search.length; i++) {
+                                long ip = search[i].longValue();
+                                // returns upper case or "--"
+                                String uc = ls.getCountry(ip).getCode();
+                                if (!uc.equals(UNKNOWN_COUNTRY_CODE)) {
+                                    String cached = _codeCache.get(uc.toLowerCase(Locale.US));
+                                    _IPToCountry.put(search[i], cached);
+                                } else {
+                                    _notFound.add(search[i]);
+                                }
+                            }
+                        } catch (IOException ioe) {
+                            _log.error("GeoIP failure", ioe);
+                        } catch (InvalidDatabaseException ide) {
+                            _log.error("GeoIP failure", ide);
+                        } finally {
+                            if (ls != null) ls.close();
+                        }
+                    } else {
+                        // Tor-style database
+                        String[] countries = readGeoIPFile(search);
+                        for (int i = 0; i < countries.length; i++) {
+                            if (countries[i] != null)
+                                _IPToCountry.put(search[i], countries[i]);
+                            else
+                                _notFound.add(search[i]);
+                        }
                     }
                 }
                 // IPv6
@@ -158,12 +196,40 @@ public class GeoIP {
                 _pendingIPv6Search.clear();
                 if (search.length > 0) {
                     Arrays.sort(search);
-                    String[] countries = GeoIPv6.readGeoIPFile(_context, search, _codeCache);
-                    for (int i = 0; i < countries.length; i++) {
-                        if (countries[i] != null)
-                            _IPToCountry.put(search[i], countries[i]);
-                        else
-                            _notFound.add(search[i]);
+                    File f = new File(_context.getProperty(PROP_DEBIAN_GEOIPV6, DEBIAN_GEOIPV6_FILE));
+                    if (ENABLE_DEBIAN && f.exists()) {
+                        // Maxmind database
+                        LookupService ls = null;
+                        try {
+                            ls = new LookupService(f, LookupService.GEOIP_STANDARD);
+                            for (int i = 0; i < search.length; i++) {
+                                long ip = search[i].longValue();
+                                String ipv6 = toV6(ip);
+                                // returns upper case or "--"
+                                String uc = ls.getCountryV6(ipv6).getCode();
+                                if (!uc.equals(UNKNOWN_COUNTRY_CODE)) {
+                                    String cached = _codeCache.get(uc.toLowerCase(Locale.US));
+                                    _IPToCountry.put(search[i], cached);
+                                } else {
+                                    _notFound.add(search[i]);
+                                }
+                            }
+                        } catch (IOException ioe) {
+                            _log.error("GeoIP failure", ioe);
+                        } catch (InvalidDatabaseException ide) {
+                            _log.error("GeoIP failure", ide);
+                        } finally {
+                            if (ls != null) ls.close();
+                        }
+                    } else {
+                        // Tor-style database
+                        String[] countries = GeoIPv6.readGeoIPFile(_context, search, _codeCache);
+                        for (int i = 0; i < countries.length; i++) {
+                            if (countries[i] != null)
+                                _IPToCountry.put(search[i], countries[i]);
+                            else
+                                _notFound.add(search[i]);
+                        }
                     }
                 }
             } finally {
@@ -404,6 +470,20 @@ public class GeoIP {
         }
     }
 
+    /**
+     * @return e.g. aabb:ccdd:eeff:1122::
+     * @since 0.9.26 for maxmind
+     */
+    private static String toV6(long ip) {
+        StringBuilder buf = new StringBuilder(21);
+        for (int i = 0; i < 4; i++) {
+            buf.append(Long.toHexString((ip >> ((3-i)*16)) & 0xffff));
+            buf.append(':');
+        }
+        buf.append(':');
+        return buf.toString();
+    }
+
     /**
      * Get the country for a country code
      * @param code two-letter lower case code