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https://issues.apache.org/jira/browse/NUTCH-2856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17890228#comment-17890228
]
ASF GitHub Bot commented on NUTCH-2856:
---------------------------------------
HiranChaudhuri commented on code in PR #826:
URL: https://github.com/apache/nutch/pull/826#discussion_r1803672657
##########
src/plugin/protocol-smb/src/java/org/apache/nutch/protocol/smb/Smb.java:
##########
@@ -0,0 +1,292 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nutch.protocol.smb;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.EnumSet;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.io.Text;
+import org.apache.nutch.crawl.CrawlDatum;
+import org.apache.nutch.metadata.Metadata;
+import org.apache.nutch.net.protocols.HttpDateFormat;
+import org.apache.nutch.protocol.Content;
+import org.apache.nutch.protocol.Protocol;
+import org.apache.nutch.protocol.ProtocolOutput;
+import org.apache.nutch.protocol.ProtocolStatus;
+import org.apache.nutch.protocol.RobotRulesParser;
+import com.hierynomus.msdtyp.AccessMask;
+import com.hierynomus.msfscc.FileAttributes;
+import com.hierynomus.msfscc.fileinformation.FileAllInformation;
+import com.hierynomus.msfscc.fileinformation.FileIdBothDirectoryInformation;
+import com.hierynomus.mssmb2.SMB2CreateDisposition;
+import com.hierynomus.mssmb2.SMB2CreateOptions;
+import com.hierynomus.mssmb2.SMB2ShareAccess;
+import com.hierynomus.smbj.auth.AuthenticationContext;
+import com.hierynomus.smbj.connection.Connection;
+import com.hierynomus.smbj.session.Session;
+import com.hierynomus.smbj.share.DiskShare;
+import com.hierynomus.smbj.share.File;
+import com.hierynomus.smbj.SMBClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import crawlercommons.robots.BaseRobotRules;
+
+public class Smb implements Protocol {
+ protected static final Logger LOG = LoggerFactory.getLogger(Smb.class);
+
+ private Configuration conf;
+
+ private String user;
+ private String password;
+ private String domain;
+ private int contentLimit;
+ private Set<String> ignoreFiles;
+
+ public Smb() {
+ // todo: files that should be skipped could be configurable.
Review Comment:
The new version relies on the regexp urlfilter which exists anyway. Only the
. and .. directories are skipped now.
I think we can resolve this one.
> Implement a protocol-smb plugin based on hierynomus/smbj
> --------------------------------------------------------
>
> Key: NUTCH-2856
> URL: https://issues.apache.org/jira/browse/NUTCH-2856
> Project: Nutch
> Issue Type: New Feature
> Components: external, plugin, protocol
> Reporter: Hiran Chaudhuri
> Assignee: Hiran Chaudhuri
> Priority: Major
> Fix For: 1.21
>
>
> The plugin protocol-smb advertized on
> [https://cwiki.apache.org/confluence/display/NUTCH/PluginCentral] actually
> refers to the JCIFS library. According to this library's homepage
> [https://www.jcifs.org/]:
> _If you're looking for the latest and greatest open source Java SMB library,
> this is not it. JCIFS has been in maintenance-mode-only for several years and
> although what it does support works fine (SMB1, NTLMv2, midlc, MSRPC and
> various utility classes), jCIFS does not support the newer SMB2/3 variants of
> the SMB protocol which is slowly becoming required (Windows 10 requires
> SMB2/3). JCIFS only supports SMB1 but Microsoft has deprecated SMB1 in their
> products. *So if SMB1 is disabled on your network, JCIFS' file related
> operations will NOT work.*_
> Looking at
> [https://en.wikipedia.org/wiki/Server_Message_Block#SMB_/_CIFS_/_SMB1:|https://en.wikipedia.org/wiki/Server_Message_Block#SMB_/_CIFS_/_SMB1]
> _Microsoft added SMB1 to the Windows Server 2012 R2 deprecation list in June
> 2013. Windows Server 2016 and some versions of Windows 10 Fall Creators
> Update do not have SMB1 installed by default._
> As a conclusion, the chances that SMB1 protocol is installed and/or
> configured are getting vastly smaller. Therefore some migration towards
> SMB2/3 is required. Luckily the JCIFS homepage lists alternatives:
> * [jcifs-codelibs|https://github.com/codelibs/jcifs]
> * [jcifs-ng|https://github.com/AgNO3/jcifs-ng]
> * [smbj|https://github.com/hierynomus/smbj]
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