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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.html b/README.html new file mode 100644 index 0000000..8f1f2b3 --- /dev/null +++ b/README.html @@ -0,0 +1,31 @@ + + + + +LDIFCompare + + + +

LDIFCompare

+

A tool based on the UnboundID LDAP SDK library that can be used to compare two LDIF files and output the differences.

+

Requirements

+
    +
  • Java 8u40 or newer
    • +
  • UnboundID LDAP SDK
    • +
  • SLF4J
    • +

Instructions

For help run: java -jar LDIFCompare-1.0-SNAPSHOT.jar --help

Example scenario

Let's say you are about to perform some kind of operation on a couple of thousand accounts in an LDAP directory using an automated provision tool and you want to make sure that you have not caused any unintended consequences by accidently modifying attributes or objects that are not in the scope of your operation.

+
    +
  • The basic idea is to take a snapshot of the directory before your operation by doing an LDIF export.
    • +
  • Then you take another snapshot after the operation has taken place by doing another LDIF export.
    • +
  • Use your favorite diff tool to compare the two LDIF files and figure out why they diff and if the diff is important or not.
    • +

LDIFCompare allows you to compare LDIF files and specify which attributes you want to ignore when comparing, for example you might not be interested if the logonTime attribute has changed.

Concepts

I have chosen to call the file that contains the original pre-operation snapshot for the "left" file and the post-operation snapshot for the "right" file.

Imagine the two LDIF files side by side on your screen. - The pre-operation file is called the left file. - The post-operation file is called the right file.

Using a properties file with the property "ignore-attributes" you can specify which attributes to ignore while comparing. During processing all attributes specified in "ignore-attributes" will be removed from both entries before being compared and before the results are written to files. For examples see the doc\ldifcompare.properties file.

Output

After processing you will get a number of result files.

It will output five files: Each file is prefixed with the date and time of the operation in the following format: yyyy-MM-dd HHmmss

+
    +
  • -diff.ldif, contains the entire LDIF record of the entries from the "right" file that don't match the corresponding entry from the "left" file.
    • +
  • -change_records.txt, contains the modifications that must be performed on an entry from the "left" file to match the entry from the "right" file.
    • +
  • -reverse-change_records.txt, contains the the modifications that must be performed on an entry from the "right" file to match the entry from the "left" file.
    • +
  • -unique-<left file name>.ldif, contains the entries that only exist in the "left" file.
    • +
  • -unique-<right file name>.ldif, contains the entries that only exist in the "right" file.
    • +

Example usage

Let's say you have two files you want to compare, the original "left" file and the post-operation "right" file.

You would execute the following command to compare them:

java -jar LDIFCompare-1.0.jar --ldifLeft ./left.ldif --ldifRight ./right.ldif --output /path/to/outputdirectory --properties ./ldifcompare.properties

The ldifcompare.properties file must contains one property called ignore-attributes=attr1,attr2. The values of the property are the names of the attributes to ignore when comparing, separated with a comma. For an example see the doc/ldifcompare.properties file. In the example above you would replace attr1,attr2 with the actual attribute names.

During a compare the DN is used to match entries between two LDIF-files, if an entry is moved, deleted or renamed then you won't get a match.

If you want to use an attribute instead of the DN to match two entries then you can do that by specifying the following property in the properties file: match-attribute=nameOfAttribute

Limitations

Handles only LDIF files containing content records or add records. Modify records and other changetypes are not supported.

+ + + \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..03814e8 --- /dev/null +++ b/README.md @@ -0,0 +1,81 @@ +# LDIFCompare + +> A tool based on the UnboundID LDAP SDK library that can be used to compare two LDIF files and output the differences. + +# Requirements + +- Java 8u40 or newer +- UnboundID LDAP SDK +- SLF4J + +# Instructions + +For help run: +`java -jar LDIFCompare-1.0-SNAPSHOT.jar --help` + +# Example scenario + +Let's say you are about to perform some kind of operation on a couple of thousand +accounts in an LDAP directory using an automated provision tool and you want to make +sure that you have not caused any unintended consequences by accidently modifying +attributes or objects that are not in the scope of your operation. + +- The basic idea is to take a snapshot of the directory before your operation by doing an LDIF export. +- Then you take another snapshot after the operation has taken place by doing another LDIF export. +- Use your favorite diff tool to compare the two LDIF files and figure out why they diff and if the diff is important or not. + +LDIFCompare allows you to compare LDIF files and specify which attributes you +want to ignore when comparing, for example you might not be interested if the +`logonTime` attribute has changed. + +# Concepts + +I have chosen to call the file that contains the original pre-operation snapshot for the "left" file and the post-operation snapshot for the "right" file. + +Imagine the two LDIF files side by side on your screen. +- The pre-operation file is called the left file. +- The post-operation file is called the right file. + +Using a properties file with the property "ignore-attributes" you can specify which attributes to ignore while comparing. +During processing all attributes specified in "ignore-attributes" will be removed from both entries before being compared and before the results are written to files. +For examples see the `doc\ldifcompare.properties` file. + +# Output + +After processing you will get a number of result files. + +It will output five files: +Each file is prefixed with the date and time of the operation in the following format: +yyyy-MM-dd HHmmss + +- -diff.ldif, contains the entire LDIF record of the entries from the "right" file that don't match the corresponding entry from the "left" file. +- -change_records.txt, contains the modifications that must be performed on an entry from the "left" file to match the entry from the "right" file. +- -reverse-change_records.txt, contains the the modifications that must be performed on an entry from the "right" file to match the entry from the "left" file. +- -unique-\.ldif, contains the entries that only exist in the "left" file. +- -unique-\.ldif, contains the entries that only exist in the "right" file. + +# Example usage + +Let's say you have two files you want to compare, the original "left" file and the post-operation "right" file. + +You would execute the following command to compare them: + +`java -jar LDIFCompare-1.0.jar --ldifLeft ./left.ldif --ldifRight ./right.ldif --output /path/to/outputdirectory --properties ./ldifcompare.properties` + +The `ldifcompare.properties` file must contains one property called `ignore-attributes=attr1,attr2`. +The values of the property are the names of the attributes to ignore when comparing, separated with a comma. +For an example see the `doc/ldifcompare.properties` file. +In the example above you would replace attr1,attr2 with the actual attribute names. + +During a compare the DN is used to match entries between two LDIF-files, if an entry is moved, deleted or renamed then you won't get a match. + +If you want to use an attribute instead of the DN to match two entries then you can do that by specifying the following property in the properties file: +*match-attribute=nameOfAttribute* + +# Limitations + +Handles only LDIF files containing content records or add records. Modify records and other changetypes are not supported. + +# License + +[GPL v3.0](http://www.gnu.org/licenses/gpl-3.0.txt) diff --git a/doc/ldifcompare.properties b/doc/ldifcompare.properties new file mode 100644 index 0000000..26c3760 --- /dev/null +++ b/doc/ldifcompare.properties @@ -0,0 +1,2 @@ +ignore-attributes=objectClass,lastLogoff,lastLogon,lastLogonTimestamp,logonCount,msDS-AuthenticatedAtDC,msDS-FailedInteractiveLogonCount,msDS-FailedInteractiveLogonCountAtLastSuccessfulLogon,msDS-FailedInteractiveLogonTime,msDS-LastSuccessfulInteractiveLogonTime,whenChanged,DirXML-Associations,ACL +#match-attribute=cn \ No newline at end of file diff --git a/doc/left.ldif b/doc/left.ldif new file mode 100644 index 0000000..e2a739b --- /dev/null +++ b/doc/left.ldif @@ -0,0 +1,38 @@ +version: 1 + +dn: cn=Rolf Nilsson,ou=Users,o=Meta +objectClass: inetOrgPerson +givenName: Rolf +sn: Nilsson +cn: Rolf Nilsson +uid: ronil +title: Midsommarfirare +lastLogon: 20150606123100Z + +dn: cn=Jan Fredriksson,ou=Users,o=Meta +objectClass: inetOrgPerson +givenName: Jan +sn: Fredriksson +cn: Jan Fredriksson +uid: jafre +title: Inskaffare av diverse drick +lastLogon: 20140602123100Z + +dn: cn=Rick Per,ou=Users,o=Meta +objectClass: user +givenName: Peter +sn: Per +cn: Rick Per +uid: peper +title: En glad deltagare +lastLogon: 20130203143100Z + +dn: cn=Andreas Svensson,ou=Users,o=Meta +objectClass: user +givenName: Andreas +sn: Sven +uid: ansvensson +cn: Andreas Svensson +title: Festgeneral +lastLogon: 20150618090000Z + diff --git a/doc/right.ldif b/doc/right.ldif new file mode 100644 index 0000000..f50c3db --- /dev/null +++ b/doc/right.ldif @@ -0,0 +1,37 @@ +version: 1 + +dn: cn=Rolf Nilsson,ou=Users,o=Meta +objectClass: inetOrgPerson +givenName: Roffe +sn: Nilsson +cn: Rolf Nilsson +uid: ronil +title: Ex. Midsommarfirare +lastLogon: 20150618123100Z + +dn: cn=Jan Fredriksson,ou=Users,o=Meta +objectClass: inetOrgPerson +givenName: Jan +sn: Fredriksson +cn: Jan Fredriksson +uid: jafre +title: Inskaffare av diverse drick +lastLogon: 20150613123100Z + +dn: cn=Andreas Svensson,ou=Users,o=Meta +objectClass: user +givenName: Andreas +sn: Sven +uid: ansvensson +cn: Andreas Svensson +title: Festgeneral +lastLogon: 20150618090000Z + +dn: cn=Nils Svensson,ou=Users,o=Meta +objectClass: inetOrgPerson +givenName: Nils +sn: Sven +uid: nisve +cn: Nils Svensson +title: Festgeneral +userPassword: myPassword diff --git a/footer.html b/footer.html new file mode 100644 index 0000000..6c663b9 --- /dev/null +++ b/footer.html @@ -0,0 +1,4 @@ + + + + \ No newline at end of file diff --git a/header.html b/header.html new file mode 100644 index 0000000..0f7f2fa --- /dev/null +++ b/header.html @@ -0,0 +1,9 @@ + + + + +LDIFCompare + + + + \ No newline at end of file diff --git a/pom.xml b/pom.xml new file mode 100644 index 0000000..1177b81 --- /dev/null +++ b/pom.xml @@ -0,0 +1,90 @@ + + + 4.0.0 + se.idsecurity.LdifCompare + se.idsecurity.LdifCompare + 1.0 + jar + + + com.unboundid + unboundid-ldapsdk + 3.0.0 + + + org.slf4j + slf4j-api + 1.7.12 + + + org.slf4j + slf4j-simple + 1.7.12 + + + + UTF-8 + 1.8 + 1.8 + + LdifCompare + + + + org.apache.maven.plugins + maven-assembly-plugin + 2.5.4 + + + src/assembly/assembly.xml + + + + + org.apache.maven.plugins + maven-jar-plugin + 2.5 + + + + + + + true + + lib/ + + se.idsecurity.ldifcompare.LdifUtilities + + + + + + com.ruleoftech + markdown-page-generator-plugin + 0.4 + + + process-sources + + generate + + + + + ${basedir}/header.html + ${basedir}/footer.html + ${basedir} + ${basedir} + ISO-8859-15 + ISO-8859-15 + + + + + LDIFCompare-${project.version} + + \ No newline at end of file diff --git a/src/assembly/assembly.xml b/src/assembly/assembly.xml new file mode 100644 index 0000000..b9abea4 --- /dev/null +++ b/src/assembly/assembly.xml @@ -0,0 +1,92 @@ + + + + + + bin + + + zip + dir + + + false + + + + + false + lib + false + + + + + + + + + ${basedir}/doc + doc + + * + + + + + ${basedir} + + + LICENSE.TXT + README.md + README.html + + + + + + ${project.build.directory} + + + *.jar + + + + diff --git a/src/main/java/se/idsecurity/ldifcompare/EntryPredicates.java b/src/main/java/se/idsecurity/ldifcompare/EntryPredicates.java new file mode 100644 index 0000000..07be419 --- /dev/null +++ b/src/main/java/se/idsecurity/ldifcompare/EntryPredicates.java @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2015 almu + * + * This program 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. + * + * This program 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 this program. If not, see . + */ +package se.idsecurity.ldifcompare; + +import com.unboundid.ldap.sdk.Entry; +import java.util.function.Predicate; + +/** + * Predicates used by the compare framework + * @author almu + */ +public class EntryPredicates { + + /** + * Indicates whether this entry contains an attribute with the given name and value + * @param attributeName + * @param attributeValue + * @return + */ + public static Predicate hasAttributeValue(String attributeName, String attributeValue) { + return p -> attributeValue != null && p.hasAttributeValue(attributeName, attributeValue); + } + + /** + * Indicates whether this entry contains the specified attribute. + * @param attributeName + * @return + */ + public static Predicate hasAttribute(String attributeName) { + return p -> p.hasAttribute(attributeName); + } + + /** + * Indicates whether this entry doesn't contain an attribute with the given name and value + * @param attributeName + * @param attributeValue + * @return + */ + public static Predicate doesntMatch(String attributeName, String attributeValue) { + return (p) -> attributeValue != null && !p.hasAttributeValue(attributeName, attributeValue); + } +} diff --git a/src/main/java/se/idsecurity/ldifcompare/LdifCompare.java b/src/main/java/se/idsecurity/ldifcompare/LdifCompare.java new file mode 100644 index 0000000..1abd23b --- /dev/null +++ b/src/main/java/se/idsecurity/ldifcompare/LdifCompare.java @@ -0,0 +1,426 @@ +/* + * Copyright (C) 2015 almu + * + * This program 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. + * + * This program 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 this program. If not, see . + */ +package se.idsecurity.ldifcompare; + +import com.unboundid.ldap.sdk.Entry; +import com.unboundid.ldap.sdk.Modification; +import com.unboundid.ldif.LDIFException; +import com.unboundid.ldif.LDIFReader; +import com.unboundid.ldif.LDIFWriter; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.PrintWriter; +import java.text.SimpleDateFormat; +import java.util.Date; +import java.util.HashSet; +import java.util.List; +import java.util.Optional; +import java.util.Set; +import java.util.stream.Stream; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Compares two LDIF files and writes the differences to a set of files + * @author almu + * + */ +public class LdifCompare { + private final static Logger logger = LoggerFactory.getLogger(LdifCompare.class); + private final int SETSIZE = 30000; + private final File leftLdif; + private final File rightLdif; + private final File entriesThatDiffOrDontExistsInLeftLdif; + private final File diffFile; + private final File entriesOnlyInLeftLdif; + private final File entriesOnlyInRightLdif; + + + private LDIFReader reader_leftLdif; + private LDIFReader reader_rightLdif; + private LDIFWriter writer_diffLdif; + private LDIFWriter writer_entriesOnlyInLeftLdif; + private LDIFWriter writer_entriesOnlyInRightLdif; + + private final List attributesToIgnoreWhenComparing; + + /** + * Attribute names to use for matching + */ + private final Optional matchingAttributeNames; + + + /** + * Used for naming the output files + */ + private final String date = "yyyy-MM-dd HHmmss"; + private final SimpleDateFormat sdf = new SimpleDateFormat(date); + + private final String fileNameDate = sdf.format(new Date(System.currentTimeMillis())); + + /** + * After creating an instance of this class call the {@link #start() } method. + * @param leftLdif The "left" LDIF file, i.e. the file that contains some "original" state data + * @param rightLdif The "right" LDIF file, i.e. the file that contains data after some processing of the original data + * @param outputDirectory The directory where the output files will be placed + * @param attributesToIgnoreWhenComparing Attributes that will be removed from the LDIF entry before making a comparison, e.g. logonTime + * @param matchingAttributeNames Attribute names to use for matching between the two files, may be null, then DN will be used for matching + */ + public LdifCompare(File leftLdif, File rightLdif, File outputDirectory, List attributesToIgnoreWhenComparing, MatchingAttributeNames matchingAttributeNames) { + if (leftLdif == null || rightLdif == null || attributesToIgnoreWhenComparing == null) { + throw new IllegalArgumentException("leftLdif, rightLdif, outputDirectory, attributesToIgnoreWhenComparing arguments may not be null!"); + } + + this.leftLdif = leftLdif; + this.rightLdif = rightLdif; + + this.entriesThatDiffOrDontExistsInLeftLdif = new File(outputDirectory, fileNameDate + "-diff.ldif"); + this.diffFile = new File(outputDirectory, fileNameDate + "-change_records.txt"); + + this.entriesOnlyInLeftLdif = new File(outputDirectory, fileNameDate + "-unique-" + leftLdif.getName()); + + this.entriesOnlyInRightLdif = new File(outputDirectory, fileNameDate + "-unique-" + rightLdif.getName()); + + this.attributesToIgnoreWhenComparing = attributesToIgnoreWhenComparing; + + this.matchingAttributeNames = Optional.ofNullable(matchingAttributeNames); + + for (String s : attributesToIgnoreWhenComparing) { + logger.error("Attribute to ignore when comparing: {}", s); + } + } + + /** + * Call this method to start the entire comparison process + * @throws IOException + */ + public void start() throws IOException { + reader_leftLdif = new LDIFReader(leftLdif); + reader_rightLdif = new LDIFReader(rightLdif); + writer_diffLdif = new LDIFWriter(entriesThatDiffOrDontExistsInLeftLdif); + writer_entriesOnlyInLeftLdif = new LDIFWriter(entriesOnlyInLeftLdif); + writer_entriesOnlyInRightLdif = new LDIFWriter(entriesOnlyInRightLdif); + + try { + logger.error("Write comments to {}", entriesThatDiffOrDontExistsInLeftLdif.getPath()); + writer_diffLdif.writeVersionHeader(); + writer_diffLdif.writeComment("This file contains entries from " + rightLdif.getName() + " that differ in some way from entries in " + leftLdif.getName(), false, true); + + logger.error("Write comments to {}", entriesOnlyInLeftLdif.getPath()); + writer_entriesOnlyInLeftLdif.writeVersionHeader(); + writer_entriesOnlyInLeftLdif.writeComment("Applicable only when matching using DN!", false, false); + writer_entriesOnlyInLeftLdif.writeComment("This file contain entries that only exist in " + leftLdif.getName() + ", i.e. they are missing for some reason in " + rightLdif.getName() + " or have been renamed/moved and have a different DN.", false, true); + + logger.error("Write comments to {}", entriesOnlyInRightLdif.getPath()); + writer_entriesOnlyInRightLdif.writeVersionHeader(); + writer_entriesOnlyInRightLdif.writeComment("Applicable only when matching using DN!", false, false); + writer_entriesOnlyInRightLdif.writeComment("This file contain entries that only exist in " + rightLdif.getName() + ", i.e. they are missing for some reason in " + leftLdif.getName() + " or have been renamed/moved and have a different DN.", false, true); + + + + logger.error("Reading file 1: {}", leftLdif.getPath()); + Set entriesFromLeftFile = new HashSet<>(SETSIZE); + while (true) { + Entry entry = reader_leftLdif.readEntry(); + + if (entry == null) { + break; + } + + entriesFromLeftFile.add(removeIgnoredAttributesFromEntry(entry)); + } + + logger.error("Reading file 2: {}", rightLdif.getPath()); + Set entriesFromRightFile = new HashSet<>(SETSIZE); + while (true) { + Entry entry = reader_rightLdif.readEntry(); + + if (entry == null) { + break; + } + + entriesFromRightFile.add(removeIgnoredAttributesFromEntry(entry)); + } + + //If matchingAttributeNames is available then will do a matching using attribute values instead of DN + if (matchingAttributeNames.isPresent()) { + logger.error("Will perform diff matching using attributes. " + leftLdif.getName() + ":" + matchingAttributeNames.get().getLeft() + ", " + rightLdif.getName() + ":" + matchingAttributeNames.get().getRight()); + //-change_records.txt + getDiffUsingMatchingAttributes(entriesFromLeftFile, entriesFromRightFile, matchingAttributeNames.get().getLeft(), matchingAttributeNames.get().getRight(), matchingAttributeNames.get(), diffFile, "Matching entries in the FIRST LDIF file using the attribute '" + matchingAttributeNames.get().getRight() + "' from the SECOND LDIF file and displaying modifications that must be made to the entry in the FIRST LDIF file to match the entry from the SECOND LDIF file."); + //-reverse-change_records.txt + getDiffUsingMatchingAttributes(entriesFromRightFile, entriesFromLeftFile, matchingAttributeNames.get().getRight(), matchingAttributeNames.get().getLeft(), matchingAttributeNames.get(), new File(diffFile.getParentFile(), fileNameDate + "-reverse-change_records.txt"), "Matching entries in the SECOND LDIF file using the attribute '" + matchingAttributeNames.get().getLeft() + "' from the FIRST LDIF file and displaying modifications that must be made to the entry in the SECOND LDIF file to match the entry from the FIRST LDIF file."); + + File nonMatching = new File(diffFile.getParentFile(), fileNameDate + "-no-match.txt"); + File nonMatchingLdif = new File(nonMatching.getParent(), fileNameDate + "-no-match.ldif"); + getNonMatchingEntriesUsingMatchingAttributes(entriesFromLeftFile, entriesFromRightFile, matchingAttributeNames.get(), nonMatching, nonMatchingLdif); + + + File reverseNonMatching = new File(diffFile.getParentFile(), fileNameDate + "-reverse-no-match.txt"); + File reverseNonMatchingLdif = new File(reverseNonMatching.getParentFile(), fileNameDate + "-reverse-no-match.ldif"); + getReverseNonMatchingEntriesUsingMatchingAttributes(entriesFromLeftFile, entriesFromRightFile, matchingAttributeNames.get(), reverseNonMatching, reverseNonMatchingLdif); + + } else { + //Write the change records for entries that have the same DN but differ in some way + logger.error("Will perform diff matching using DN"); + getMatchUsingDN(entriesFromLeftFile, entriesFromRightFile); + } + + } catch (IOException | LDIFException e) { + logger.error("Exception occured", e); + } finally { + try { + writer_diffLdif.close(); + } catch (IOException close) { + logger.error("Error closing writer_diffLdif", close); + } + try { + writer_entriesOnlyInLeftLdif.close(); + } catch (IOException close) { + logger.error("Error closing writer_entriesOnlyInLeftLdif", close); + } + try { + writer_entriesOnlyInRightLdif.close(); + } catch (IOException close) { + logger.error("Error closing writer_entriesOnlyInRightLdif", close); + } + try { + reader_leftLdif.close(); + } catch (IOException close) { + logger.error("Error closing reader_leftLdif", close); + } + + try { + reader_rightLdif.close(); + } catch (IOException close) { + logger.error("Error closing reader_rightLdif", close); + } + } + + } + + /** + * Compare LDIF entries using DN, if the DN is the same in both entries then the entries should be compared + * @param source Entries from the "left" file + * @param target Entries from the "right" file + * @param diffFile Write results to this file + * @param comment Comment to write to the file + * @throws FileNotFoundException + */ + private void getDiffUsingDN(Set source, Set target, File diffFile, String comment) throws FileNotFoundException { + try (PrintWriter writer = new PrintWriter(diffFile)) { + + writer.println(comment); + for (Entry targetEntry : target) { + for (Entry sourceEntry : source) { + if (sourceEntry.getDN().equals(targetEntry.getDN())) { + writer.println(); + writer.println(targetEntry.getDN()); + List diff = Entry.diff(sourceEntry, targetEntry, false); + for (Modification mod : diff) { + writer.println(mod); + } + } + } + } + } + } + + /** + * Strip ignored attributes from the LDIF entry before processing + * @param entry + * @return + */ + private Entry removeIgnoredAttributesFromEntry(Entry entry) { + for (String s : attributesToIgnoreWhenComparing) { + entry.removeAttribute(s); + } + return entry; + } + + /** + * Compare LDIF entries using a matching attribute, if the attribute value is the same in both entries then the entries should be compared + * @param firstLdif Entries from the "left" file + * @param secondLdif Entries from the "right" file + * @param attributeName Attribute to use for matching + * @param diffFile Write results to this file + * @throws FileNotFoundException + */ + private void getDiffUsingMatchingAttributes(Set firstLdif, Set secondLdif, String attributeNameFirst, String attributeNameSecond, MatchingAttributeNames attributeName, File diffFile, String comment) throws FileNotFoundException { + try (PrintWriter writer = new PrintWriter(diffFile)) { + writer.println(comment); + + firstLdif.stream().filter(EntryPredicates.hasAttribute(attributeNameFirst)).forEach((first) -> { + secondLdif.stream().filter(EntryPredicates.hasAttributeValue(attributeNameSecond, first.getAttributeValue(attributeNameFirst))).forEach((second) -> { + writer.println(); + writer.println("Matched '" + first.getDN() + "' using value '" + second.getAttributeValue(attributeNameSecond) + "' with '" + second.getDN() + "'"); + List diff = Entry.diff(first, second, false); + if (diff.isEmpty()) { + writer.println("NO DIFF"); + } else { + diff.stream().forEach(mod -> writer.println(mod)); + } + + }); + }); + + } + } + + /** + * Retrieves entries that we are unable to match using a matching attribute and writes those entries to output files. + * For each entry in the left file try to find a match in the right file. + * @param firstLdif Entries from the "left" file + * @param secondLdif Entries from the "right" file + * @param attributeName Attribute to use for matching + * @param diffFile Write results to this file + * @param ldifFile Write LDIF entries to this file + * @throws IOException + */ + private void getNonMatchingEntriesUsingMatchingAttributes(Set firstLdif, Set secondLdif, MatchingAttributeNames attributeName, File diffFile, File ldifFile) throws IOException { + LDIFWriter ldifWriter = new LDIFWriter(ldifFile); + ldifWriter.writeVersionHeader(); + + PrintWriter writer = new PrintWriter(diffFile); + writer.println("Unable to match entries in the FIRST LDIF file using the attribute '" + attributeName.getRight() + "' from the SECOND LDIF file."); + + firstLdif.stream().forEach((Entry first) -> { + long count = secondLdif.stream().filter(EntryPredicates.hasAttributeValue(attributeName.getRight(), first.getAttributeValue(attributeName.getLeft()))).findFirst().map(Stream::of).orElse(Stream.empty()).count(); + if (count == 0L) { + writer.println(); + writer.println("No match found '" + first.getDN() + "' using value '" + first.getAttributeValue(attributeName.getLeft()) + "'"); + + try { + + ldifWriter.writeEntry(first, "No match found '" + first.getDN() + "' using value '" + first.getAttributeValue(attributeName.getLeft()) + "'"); + } catch (IOException ex) { + throw new RuntimeException("Exception writing to " + ldifFile.getPath(), ex); + } + } + }); + ldifWriter.close(); + writer.close(); + + } + + /** + * Retrieves entries that we are unable to match using a matching attribute and writes those entries to output files. + * For each entry in the right file try to find a match in the left file. + * @param firstLdif Entries from the "left" file + * @param secondLdif Entries from the "right" file + * @param attributeName Attribute to use for matching + * @param diffFile Write results to this file + * @param ldifFile Write LDIF entries to this file + * @throws IOException + */ + private void getReverseNonMatchingEntriesUsingMatchingAttributes(Set firstLdif, Set secondLdif, MatchingAttributeNames attributeName, File diffFile, File ldifFile) throws IOException { + LDIFWriter ldifWriter = new LDIFWriter(ldifFile); + ldifWriter.writeVersionHeader(); + PrintWriter writer = new PrintWriter(diffFile); + writer.println("Unable to match entries in the SECOND LDIF file using the attribute '" + attributeName.getLeft() + "' from the FIRST LDIF file."); + + secondLdif.stream().forEach((Entry second) -> { + long count = firstLdif.stream().filter(EntryPredicates.hasAttributeValue(attributeName.getRight(), second.getAttributeValue(attributeName.getRight()))).findFirst().map(Stream::of).orElse(Stream.empty()).count(); + if (count == 0L) { + writer.println(); + writer.println("No match found '" + second.getDN() + "' using value '" + second.getAttributeValue(attributeName.getRight()) + "'"); + + try { + + ldifWriter.writeEntry(second, "No match found '" + second.getDN() + "' using value '" + second.getAttributeValue(attributeName.getRight()) + "'"); + } catch (IOException ex) { + throw new RuntimeException("Exception writing to " + ldifFile.getPath(), ex); + } + } + }); + ldifWriter.close(); + writer.close(); + + } + + /** + * Performs matching between LDIF files using the DN and the Entry objects equals method + * First remove all entries from secondLdif that are exactly the same in as those in firstLdif. + * Loop through the remaining secondLdif entries and check if the DN exists on an entry from firstLdif. + * If the same DN exists do nothing, else write the entry to the {@link #entriesOnlyInRightLdif} file. + * Next call the {@link #getDiffUsingDN(java.util.Set, java.util.Set, java.io.File, java.lang.String) } + * method to print out modifications necessary to make the entry from firstLdif match the entry from secondLdif. + * Next remove all entries from firstLdif that are exactly the same as those in secondLdif. + * Next call the {@link #getDiffUsingDN(java.util.Set, java.util.Set, java.io.File, java.lang.String) } + * method to print out modifications necessary to make the entry from secondLdif match the entry from firstLdif. + * Loop through the remaining firstLdif entries and check if the DN exists on an entry from secondLdif. + * If the same DN exists do nothing, else write the entry to the {@link #entriesOnlyInLeftLdif} file. + * + * @param firstLdif + * @param secondLdif + * @throws IOException + */ + private void getMatchUsingDN(Set firstLdif, Set secondLdif) throws IOException { + //Entries from the rightLdif that differ or don't exist in leftLdif file + Set difference = new HashSet<>(secondLdif); + difference.removeAll(firstLdif);//Remove all entries from difference that exist in the firstLdif file + + //Create diff file that will show the modifications that are necessary to perform on an entry from the LEFT file to be the same as the entry from the RIGHT file + String comment = "For the entry from the FIRST LDIF file to match the entry from the SECOND LDIF file the following modifications must be made to the entry from the FIRST LDIF file."; + getDiffUsingDN(firstLdif, difference, diffFile, comment); + //Write the entries from rightLdif that differ in some way from leftLdif + for (Entry e : difference) { + + + //Get unique entries from the rightLdif file based on DN - no entry with the same DN exist in leftLdif + String dn = e.getDN(); + boolean unique = true; + for (Entry entryFromLeft : firstLdif) { + if (entryFromLeft.getDN().equals(dn)) { + unique = false; + writer_diffLdif.writeEntry(e);//Entry exists in both files but differs + break; + } + } + if (unique) { + writer_entriesOnlyInRightLdif.writeEntry(e);//Entry only exists in rightLdif + } + + } + + + //Entries from the leftLdif file that differ or don't exist in the rightLdif file + firstLdif.removeAll(secondLdif);//Remove all entries from firstLdif that are the same in as the entries in secondLdif + + //Create diff file that will show the modifications that are necessary to perform on an entry from the RIGHT file to be the same as the entry from the LEFT file + comment = "For the entry from the SECOND LDIF file to match the entry from the FIRST LDIF file the following modifications must be made to the entry from the SECOND LDIF file."; + getDiffUsingDN(secondLdif, firstLdif, new File(diffFile.getParentFile(), fileNameDate + "-reverse-change_records.txt"), comment); + + + for (Entry e : firstLdif) { + //Get unique entries from the leftLdif file based on DN - no entry with the same DN doesn't exist in rightLdif + String dn = e.getDN(); + boolean unique = true; + for (Entry entryFromRight : secondLdif) { + if (entryFromRight.getDN().equals(dn)) { + unique = false; + break; + } + } + if (unique) { + writer_entriesOnlyInLeftLdif.writeEntry(e);//Entry only exits in leftLdif + } + + } + } + +} diff --git a/src/main/java/se/idsecurity/ldifcompare/LdifUtilities.java b/src/main/java/se/idsecurity/ldifcompare/LdifUtilities.java new file mode 100644 index 0000000..b8a239b --- /dev/null +++ b/src/main/java/se/idsecurity/ldifcompare/LdifUtilities.java @@ -0,0 +1,212 @@ +/* + * Copyright (C) 2015 almu + * + * This program 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. + * + * This program 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 this program. If not, see . + */ +package se.idsecurity.ldifcompare; + +import com.unboundid.ldap.sdk.ResultCode; +import com.unboundid.util.CommandLineTool; +import com.unboundid.util.args.ArgumentException; +import com.unboundid.util.args.ArgumentParser; +import com.unboundid.util.args.FileArgument; +import java.io.File; +import java.io.IOException; +import java.io.OutputStream; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.LinkedHashMap; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +/** + * + * @author almu + */ +public class LdifUtilities extends CommandLineTool { + + private ArgumentParser parser; + + private final static Logger log = LoggerFactory.getLogger(LdifUtilities.class); + + /** + * @param args the command line arguments + */ + public static void main(String[] args) { + + final ResultCode resultCode = main(args, System.out, System.err); + if (resultCode != ResultCode.SUCCESS) { + System.exit(resultCode.intValue()); + } + } + + /** + * Parse the provided command line arguments and make the appropriate set of + * changes. + * + * @param args The command line arguments provided to this program. + * @param outStream The output stream to which standard out should be + * written. It may be {@code null} if output should be + * suppressed. + * @param errStream The output stream to which standard error should be + * written. It may be {@code null} if error messages + * should be suppressed. + * + * @return A result code indicating whether the processing was successful. + */ + public static ResultCode main(final String[] args, + final OutputStream outStream, + final OutputStream errStream) + { + LdifUtilities ldifUtilities = new LdifUtilities(outStream, errStream); + return ldifUtilities.runTool(args); + } + + /** + * Creates a new instance of this tool. + * + * @param outStream The output stream to which standard out should be + * written. It may be {@code null} if output should be + * suppressed. + * @param errStream The output stream to which standard error should be + * written. It may be {@code null} if error messages + * should be suppressed. + */ + public LdifUtilities(OutputStream outStream, OutputStream errStream) { + super(outStream, errStream); + Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler()); + } + + + + @Override + public String getToolName() { + return "LDIF Utilities"; + } + + @Override + public String getToolDescription() { + return "Compares LDIF files"; + } + + @Override + public void addToolArguments(ArgumentParser parser) throws ArgumentException { + FileArgument leftLdifFile = new FileArgument('l', "ldifLeft", true, 1, "c:/path/original.ldif", "LDIF file with before state", false, true, true, false); + FileArgument rightLdifFile = new FileArgument('r', "ldifRight", true, 1, "c:/path/aftermigration.ldif", "LDIF file with after state", false, true, true, false); + FileArgument outputDirectory = new FileArgument('o', "output", false, 1, "c:/path/outputDirectory", "Output directory that will contain the diff files", true, false, false, true); + + FileArgument propertiesFile = new FileArgument(null, "properties", true, 1, "c:/path/ldifcompare.properties", "Properties file that governs the behavior of the comparison", false, true, true, false); + + parser.addArgument(leftLdifFile); + parser.addArgument(rightLdifFile); + parser.addArgument(outputDirectory); + + parser.addArgument(propertiesFile); + + this.parser = parser; + } + + @Override + public ResultCode doToolProcessing() { + + File leftLdif = ((FileArgument)parser.getNamedArgument("ldifLeft")).getValue(); + File rightLdif = ((FileArgument)parser.getNamedArgument("ldifRight")).getValue(); + File outputDirectory = ((FileArgument)parser.getNamedArgument("output")).getValue(); + + if (outputDirectory == null) { + Path cwd = Paths.get(""); + outputDirectory = cwd.toFile(); + } + + + File propertyFile = ((FileArgument)parser.getNamedArgument("properties")).getValue(); + + log.error("Load properties from: " + propertyFile.getPath()); + + LoadProperties property = new LoadProperties(propertyFile); + + try { + property.initialize(); + } catch (IOException e) { + log.error("Could not load property file: {}", propertyFile.getPath(), e); + return ResultCode.PARAM_ERROR; + } + + MatchingAttributeNames man = property.getMatchingAttributeNames(); + + LdifCompare compare = new LdifCompare(leftLdif, rightLdif, outputDirectory, property.getCommaSeparatedPropertyAsList("ignore-attributes"), man); + + try { + compare.start(); + return ResultCode.SUCCESS; + } catch (IOException e) { + log.error("LdifCompare failed", e); + return ResultCode.LOCAL_ERROR; + } + + + } + + + /** + * {@inheritDoc} + */ + @Override() + public LinkedHashMap getExampleUsages() + { + final LinkedHashMap examples = + new LinkedHashMap(); + + final String[] args = + { + "--ldifLeft", "c:/path/left.ldif", + "--ldifRight", "c:/path/right.ldif", + "--output", "c:/path/outputDirectory", + "--properties", "c:/path/ldifcompare.properties", + + }; + final String description = + "Compares two LDIF files (left and right).\n" + + "Outputs the entries from the \"right\" file that don't match any" + + "entries in the \"left\" file to the \"yyyy-MM-dd HH:mm:ss-diff.ldif\" file.\n\n" + + "Additonally the following files are created:\n" + + "yyyy-MM-dd HHmmss-change_records.txt\n" + + "yyyy-MM-dd HHmmss-reverse-change_records.txt\n" + + "yyyy-MM-dd HHmmss-unique-\n" + + "yyyy-MM-dd HHmmss-unique-\n" + + "The left file would for example contain entries in an original state\n" + + "and the right file would contain entries after some kind of processing.\n" + + "The tool would be used for making sure that the processing was correct.\n" + + "The properties file needs to contain one property: \n" + + "ignore-attributes=attr1,attr2\n" + + "I.e. a comma separated list of attributes to ignore when comparing entries.\n" + + "Attributes that one wants to ignore can be e.g. lastLogon etc.\n\n" + + "The tool uses the DN to match entries unless the properties file contains the following key/value:\n" + + "match-attribute=nameOfAttribute"; + examples.put(args, description); + + return examples; + } + + public class UncaughtExceptionHandler implements Thread.UncaughtExceptionHandler { + + @Override + public void uncaughtException(Thread t, Throwable e) { + log.error("CAUGHT UNCAUGHTEXCEPTION FROM THREAD: " + t.getName(), e); + } + + } + +} diff --git a/src/main/java/se/idsecurity/ldifcompare/LoadProperties.java b/src/main/java/se/idsecurity/ldifcompare/LoadProperties.java new file mode 100644 index 0000000..5504f90 --- /dev/null +++ b/src/main/java/se/idsecurity/ldifcompare/LoadProperties.java @@ -0,0 +1,115 @@ +/* + * Copyright (C) 2015 almu + * + * This program 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. + * + * This program 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 this program. If not, see . + */ +package se.idsecurity.ldifcompare; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Properties; + +/** + * Parses a Java property file + * @see Java Properties JavaDoc + * @author almu + */ +public class LoadProperties { + + private final File propertiesFile; + private final Properties properties = new Properties(); + private boolean initialized = false; + private final String matchAttributeNameProperty = "match-attribute"; + + /** + * Creates a new LoadProperties using the specified properties file + * @param propertiesFile + */ + public LoadProperties(File propertiesFile) { + this.propertiesFile = propertiesFile; + } + + /** + * Call this method once to load the properties file. + * @throws FileNotFoundException + * @throws IOException + */ + public void initialize() throws FileNotFoundException, IOException { + FileInputStream propStream = new FileInputStream(propertiesFile); + properties.load(propStream); + initialized = true; + } + + /** + * Retrieves the Properties object associated with this properties file. + * Call {@link #initialize()} before calling this method! + * @return The Properties object + */ + public Properties getProperties() { + if (!initialized) { + throw new IllegalStateException("Call initialize before calling this method."); + } + return properties; + } + + /** + * Return the value of a property. + * @param key Name of the property + * @return The value or null if there is no such property + */ + public String getPropertyString(String key) { + return getProperties().getProperty(key); + } + + /** + * Parse a comma separated property into a List of Strings + * @param key Name of the property + * @return The list of Strings or an empty list if there was no such property + */ + public List getCommaSeparatedPropertyAsList(String key) { + String property = getPropertyString(key); + List list = new ArrayList<>(); + if (property != null && property.contains(",")) { + + String[] splitProperties = property.split(","); + list.addAll(Arrays.asList(splitProperties)); + + } + return list; + } + + /** + * Retrieves an MatchingAttributeNames object from the properties file. + * @return The MatchingAttributeNames object or null if there is no such property in the file. + */ + public MatchingAttributeNames getMatchingAttributeNames() { + MatchingAttributeNames value = null; + String property = getPropertyString(matchAttributeNameProperty); + if (property != null) { + String[] splitProperties = property.split(","); + if (splitProperties.length == 2) { + value = new MatchingAttributeNames(splitProperties[0], splitProperties[1]); + } else { + value = new MatchingAttributeNames(splitProperties[0], splitProperties[0]); + } + } + return value; + } + +} diff --git a/src/main/java/se/idsecurity/ldifcompare/MatchingAttributeNames.java b/src/main/java/se/idsecurity/ldifcompare/MatchingAttributeNames.java new file mode 100644 index 0000000..a3b5fea --- /dev/null +++ b/src/main/java/se/idsecurity/ldifcompare/MatchingAttributeNames.java @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2015 almu + * + * This program 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. + * + * This program 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 this program. If not, see . + */ +package se.idsecurity.ldifcompare; + +import java.util.Objects; + +/** + * Represents an object that contains the name of the attributes to use when matching two Entry objects. + * @author almu + */ +public final class MatchingAttributeNames { + + private final String left; + private final String right; + + /** + * Creates a new MatchingAttributeNames object using the specified attribute names + * @param left The name of the matching attribute in the "left" LDIF file + * @param right The name of the matching attribute in the "right" LDIF file + */ + public MatchingAttributeNames(String left, String right) { + if (left == null || right == null || left.isEmpty() || right.isEmpty()) { + throw new IllegalArgumentException("The parameters left and right must not be null/empty"); + } + this.left = left; + this.right = right; + } + + @Override + public int hashCode() { + int hash = 7; + hash = 71 * hash + Objects.hashCode(this.left); + hash = 71 * hash + Objects.hashCode(this.right); + return hash; + } + + @Override + public boolean equals(Object obj) { + if (obj == null) { + return false; + } + if (getClass() != obj.getClass()) { + return false; + } + final MatchingAttributeNames other = (MatchingAttributeNames) obj; + if (!Objects.equals(this.left, other.left)) { + return false; + } + if (!Objects.equals(this.right, other.right)) { + return false; + } + return true; + } + + /** + * Retrieve the name of the matching attribute in the "left" LDIF file + * @return The attribute name + */ + public String getLeft() { + return left; + } + + /** + * Retrieve the name of the matching attribute in the "right" LDIF file + * @return The attribute name + */ + public String getRight() { + return right; + } + + + + +}