From: zapata <zapata>
Date: Sun, 19 Mar 2006 20:53:11 +0000 (+0000)
Subject: added a posting size anti-abuse filter
X-Git-Tag: LATEST_MERGED_1_1~63
X-Git-Url: http://erislabs.net/gitweb/?p=mir.git;a=commitdiff_plain;h=b91681c07507cd92174b2414466525b6ec324be2

added a posting size anti-abuse filter
---

diff --git a/bundles/admin_en.properties b/bundles/admin_en.properties
index d2f2f874..28925e11 100755
--- a/bundles/admin_en.properties
+++ b/bundles/admin_en.properties
@@ -1,6 +1,6 @@
 ########## admin ##########
 # language: english
-# $Id: admin_en.properties,v 1.48.2.27 2005/12/25 21:38:45 zapata Exp $
+# $Id: admin_en.properties,v 1.48.2.28 2006/03/19 20:53:11 zapata Exp $
 
 languagename=English
 
@@ -510,6 +510,7 @@ filtertype.regexp = Regular expression
 filtertype.useragent= User Agent
 filtertype.throttle = Throttle
 filtertype.hostname = Host name
+filtertype.size= Posting size
 
 filtererror.title = Error:
 filtererror.invalidtype = Invalid filter type
diff --git a/source/mircoders/abuse/PostingSizeFilterType.java b/source/mircoders/abuse/PostingSizeFilterType.java
new file mode 100644
index 00000000..8cccde4c
--- /dev/null
+++ b/source/mircoders/abuse/PostingSizeFilterType.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir 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 Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with  any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two.  You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries.  If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
+ */
+
+package mircoders.abuse;
+
+import mir.entity.Entity;
+import mir.session.Request;
+
+import java.util.Iterator;
+
+/**
+  * A description of a regular expression filter.
+  */
+public class PostingSizeFilterType extends AbstractFilterType {
+  public PostingSizeFilterType(String aName) {
+     super(aName);
+   }
+
+  public FilterInstance constructFilterInstance(final String anExpression) throws AbuseExc {
+    final long maxSize;
+    try {
+       maxSize = Long.parseLong(anExpression);
+    }
+    catch (NumberFormatException e) {
+      throw new AbuseExc("Not an integer: " + anExpression);
+    }
+
+    return new FilterInstance() {
+
+      public boolean test(Entity anEntity, Request aRequest) {
+        long totalSize = 0L;
+        Iterator j = anEntity.getFieldNames().iterator();
+
+        while (j.hasNext()) {
+          String field = anEntity.getFieldValue( (String) j.next());
+          if (field!=null) {
+            totalSize += (long) field.length();
+          }
+        }
+
+        return totalSize > maxSize;
+      }
+
+      public String status() {
+        return null;
+      }
+    };
+  }
+}
\ No newline at end of file
diff --git a/source/mircoders/localizer/basic/MirBasicOpenPostingLocalizer.java b/source/mircoders/localizer/basic/MirBasicOpenPostingLocalizer.java
index 01333162..bad1ede2 100755
--- a/source/mircoders/localizer/basic/MirBasicOpenPostingLocalizer.java
+++ b/source/mircoders/localizer/basic/MirBasicOpenPostingLocalizer.java
@@ -29,14 +29,6 @@
  */
 package mircoders.localizer.basic;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Random;
-import java.util.Collections;
-
 import mir.config.MirPropertiesConfiguration;
 import mir.log.LoggerWrapper;
 import mir.session.Request;
@@ -46,6 +38,7 @@ import mircoders.abuse.FilterType;
 import mircoders.abuse.IPFilterType;
 import mircoders.abuse.RegularExpressionFilterType;
 import mircoders.abuse.ThrottleFilter;
+import mircoders.abuse.PostingSizeFilterType;
 import mircoders.entity.EntityComment;
 import mircoders.entity.EntityContent;
 import mircoders.global.MirGlobal;
@@ -54,6 +47,14 @@ import mircoders.localizer.MirLocalizerExc;
 import mircoders.localizer.MirLocalizerFailure;
 import mircoders.localizer.MirOpenPostingLocalizer;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+
 public class MirBasicOpenPostingLocalizer implements MirOpenPostingLocalizer {
   private List afterContentProducerTasks;
   private List afterCommentProducerTasks;
@@ -95,6 +96,7 @@ public class MirBasicOpenPostingLocalizer implements MirOpenPostingLocalizer {
     addSimpleAntiAbuseFilterType(new RegularExpressionFilterType("hostname", false, false,
         RegularExpressionFilterType.REQUEST_HEADERS, new String[] {"hostname"}));
     addSimpleAntiAbuseFilterType(new ThrottleFilter("throttle"));
+    addSimpleAntiAbuseFilterType(new PostingSizeFilterType("size"));
   }
 
   public SessionHandler getOpenSessionHandler(String aSessionType) throws MirLocalizerExc, MirLocalizerFailure  {