Refactored user agent bot detection feature.

src/fr/devinsy/statoolinfos/metrics/http/HttpAccessLog.java

@@ -23,13 +23,11 @@ import java.time.format.DateTimeFormatter;
 import java.util.Locale;
 import java.util.regex.Pattern;
 
-import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import fr.devinsy.statoolinfos.metrics.TimeMarkUtils;
 import fr.devinsy.strings.StringList;
-import fr.devinsy.strings.StringsUtils;
 
 /**
  * The Class HttpAccessLog.
@@ -179,30 +177,15 @@ public class HttpAccessLog
     }
 
     /**
-     * @return
+     * Checks if is bot.
+     *
+     * @return true, if is bot
      */
     public boolean isBot()
     {
         boolean result;
 
-        if (StringsUtils.containsAnyIgnoreCase(this.userAgent.toString(), "BingPreview", "bot", "crawler", "HeadlessChrome/", " - Mobilizon ", "monitoring", "YisouSpider"))
-        {
-            result = true;
-        }
-        else if (StringUtils.startsWithAny(this.userAgent.toString(), "Apache-HttpClient/", "curl/", "Friendica ", "git/", "github-camo", "hackney/", "http.rb/", "FediList ", "Go-http-client",
-                "GoModuleMirror/", "HotJava/", "Java/", "JGit/", "MastoPeek ", "mattermost-", "Misskey/", "newspaper/", "node-fetch/", "okhttp/", "PeerTube/", "PHP/", "Pleroma ", "python-requests/",
-                "python/", "Python/", "Synapse/", "Tusky/"))
-        {
-            result = true;
-        }
-        else if (StringUtils.equalsAnyIgnoreCase(this.userAgent.toString(), "-"))
-        {
-            result = true;
-        }
-        else
-        {
-            result = false;
-        }
+        result = UserAgentBotDetector.isBot(this.userAgent.toString());
 
         //
         return result;

src/fr/devinsy/statoolinfos/metrics/http/UserAgentBotDetector.java

@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2021 Christian Pierre MOMON <christian@momon.org>
+ * 
+ * This file is part of StatoolInfos, simple service statistics tool.
+ * 
+ * StatoolInfos is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * StatoolInfos 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 Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with StatoolInfos.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.statoolinfos.metrics.http;
+
+import java.io.IOException;
+
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import fr.devinsy.strings.StringList;
+import fr.devinsy.strings.StringsUtils;
+
+/**
+ * The Class UserAgentBotDetector.
+ */
+public class UserAgentBotDetector
+{
+    private static Logger logger = LoggerFactory.getLogger(UserAgentBotDetector.class);
+
+    private static final StringList startList = new StringList();
+    private static final StringList containList = new StringList();
+
+    static
+    {
+        StringList lines;
+        try
+        {
+            lines = StringsUtils.load(UserAgentBotDetector.class.getResource("/fr/devinsy/statoolinfos/metrics/http/userAgentBotDetectorData.txt"));
+        }
+        catch (IOException exception)
+        {
+            exception.printStackTrace();
+            lines = new StringList();
+        }
+
+        for (String line : lines)
+        {
+            if (line.startsWith("^"))
+            {
+                startList.add(line.substring(1));
+            }
+            else
+            {
+                containList.add(line);
+            }
+        }
+    }
+
+    /**
+     * Instantiates a new user agent bot detector.
+     */
+    private UserAgentBotDetector()
+    {
+    }
+
+    /**
+     * Checks if is bot.
+     *
+     * @param userAgent
+     *            the user agent
+     * @return true, if is bot
+     */
+    public static boolean isBot(final String userAgent)
+    {
+        boolean result;
+
+        if (StringUtils.isBlank(userAgent))
+        {
+            result = true;
+        }
+        else if (StringUtils.equalsAny(userAgent.trim(), "-"))
+        {
+            result = true;
+        }
+        else if (StringsUtils.containsAnyIgnoreCase(userAgent, containList))
+        {
+            result = true;
+        }
+        else if (StringsUtils.startsWithAny(userAgent, startList))
+        {
+            result = true;
+        }
+        else
+        {
+            result = false;
+        }
+
+        //
+        return result;
+    }
+}

src/fr/devinsy/statoolinfos/metrics/http/userAgentBotDetectorData.txt

@@ -0,0 +1,34 @@
+^Apache-HttpClient/
+bot
+BingPreview
+crawler
+^curl/
+^Friendica 
+^git/
+^github-camo
+^hackney/
+HeadlessChrome/
+^http.rb/
+^FediList 
+^Go-http-client
+^GoModuleMirror/
+^HotJava/
+^Java/
+^JGit/
+^MastoPeek 
+^mattermost-
+^Misskey/
+ - Mobilizon 
+monitoring
+^newspaper/
+^node-fetch/
+^okhttp/
+^PeerTube/
+^PHP/
+^Pleroma 
+^python-requests/
+^python/
+^Python/
+^Synapse/
+^Tusky/
+YisouSpider

test/fr/devinsy/statoolinfos/metrics/http/UserAgentBotDetectorTest.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2021 Christian Pierre MOMON <christian@momon.org>
+ * 
+ * This file is part of StatoolInfos, simple key value database.
+ * 
+ * StatoolInfos is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * StatoolInfos 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 Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with StatoolInfos.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.statoolinfos.metrics.http;
+
+import org.apache.log4j.BasicConfigurator;
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import fr.devinsy.statoolinfos.core.StatoolInfosException;
+
+/**
+ * The Class UserAgentBotDetectorTest.
+ */
+public class UserAgentBotDetectorTest
+{
+    private static org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(UserAgentBotDetectorTest.class);
+
+    /**
+     * Test 01.
+     *
+     * @throws Exception
+     *             the exception
+     */
+    @Test
+    public void test01() throws Exception
+    {
+        Assert.assertTrue(UserAgentBotDetector.isBot(""));
+        Assert.assertTrue(UserAgentBotDetector.isBot("-"));
+        Assert.assertTrue(UserAgentBotDetector.isBot("mobilizon.zapashcanon.fr - Mobilizon 1.1.2"));
+        Assert.assertTrue(UserAgentBotDetector.isBot("Pleroma 2.3.50-242-g8e9f032f-develop; https://soc.abcdefg.club <ary@abcdefg.club>"));
+
+        Assert.assertFalse(UserAgentBotDetector.isBot("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36"));
+    }
+
+    /**
+     * After class.
+     * 
+     * @throws StatoolInfosException
+     *             the Juga exception
+     */
+    @AfterClass
+    public static void afterClass() throws StatoolInfosException
+    {
+    }
+
+    /**
+     * Before class.
+     * 
+     * @throws StatoolInfosException
+     *             the Juga exception
+     */
+    @BeforeClass
+    public static void beforeClass() throws StatoolInfosException
+    {
+        BasicConfigurator.configure();
+        Logger.getRootLogger().setLevel(Level.DEBUG);
+    }
+}