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SAML Module for Alfresco Content Services

Install with zip

The SAML Module is installed as a module of Alfresco Content Services. These modules are referred to as Alfresco Module Packages (AMP) and use the .amp file format.

AMPs can be installed in the amps directory of your Alfresco Content Services installation or by using the Module Management Tool.

Prerequisites

There are a number of prerequisites for installing the SAML Module in addition to the supported platforms.

Software

Alfresco should work with any identify provider (IdP) that supports SAML 2.0, however the following IdPs have been tested:

  • Microsoft Active Directory Federation Services (ADFS) 3.0 for Microsoft Windows 2012 R2 and above
  • PingIdentity PingFederate 7.0 and later

Make sure that you have the public key of the certificate from your chosen IdP. You also need the SSO request, SLO request, and SLO response URLs.

SAML level

Alfresco uses SAML 2.0. See OASIS SAML v2.0 for more information on SAML specifications.

Authentication chain

SAML is not a part of the authentication chain. It is used as a replacement for the authentication chain.

If you have not enforced SAML for a specific service provider, you can use the other authentication methods specified in your authentication chain alongside SAML when accessing that service provider.

Changes to configuring keystores

The way you configure keystores in Content Services and related projects has changed. In previous releases, the configuration was stored in a password file, like keystore-passwords.properties.

Note: The old way of configuring should still work for backwards compatibility, but it’s discouraged due to security reasons. If the old approach is used, you’ll see a warning in the logs. In the SAML module, the property saml.keystore.keyMetaData.location is deprecated, but it’s still available only for backwards compatibility.

The recommended way of specifying the configuration is to use JVM system properties.

See the Alfresco Content Services documentation, Managing Alfresco keystore, for more details the keystores changes.

In the following steps, you can follow either:

  • Step 6.3 to use the updated configuration (recommended).
  • Step 6.4 to continue using the old configuration, bearing in mind the security risk (deprecated).

Installation steps

Note: If you are installing the SAML Module on top of Alfresco Content Connector for AWS S3, use the -force option, otherwise Alfresco Content Services will not start correctly.

Note: If you are running Alfresco Content Services behind a proxy, make sure the identity provider references the proxy endpoint instead of directly referencing the Alfresco cluster.

  1. Stop the Alfresco Content Services server.

  2. Navigate to the Alfresco Support Portal, download and unzip the SAML Module for Alfresco Content Services zip package:

    • alfresco-saml-1.2.x.zip

    This file contains the following content:

     ├── README.txt
     ├── alfresco
     │   └── extension
     │       └── subsystems
     │           └── SAML
     │               ├── repository
     │               │   ├── aos
     │               │   │   └── my-custom-aos-sp.properties.sample
     │               │   └── rest-api
     │               │       └── my-custom-rest-api-sp.properties.sample
     │               └── share
     │                   └── my-custom-share-sp.properties.sample
     ├── alfresco-global.properties.sample
     ├── alfresco-saml-repo-1.2.x.amp
     ├── alfresco-saml-share-1.2.x.amp
     └── share-config-custom.xml.sample
    
  3. Move or copy alfresco-saml-repo-1.2.x.amp to the amps directory and alfresco-saml-share-1.2.x.amp to the amps_share directory in your Alfresco Content Services installation.

  4. If you are using Tomcat, navigate to the bin directory and run the apply_amps.bat file to install the AMP files.

    • /opt/alfresco/bin
    • (Windows) c:\Alfresco\bin

    Check the output from the script to ensure that the AMP files have installed successfully.

  5. If you are not using Tomcat, use the Module Management Tool to apply the AMP files.

  6. The SAML module does not supply a service provider certificate that is used to sign messages sent to the IdP. You must generate your own certificate, as shown in the following example:

    This will generate a self-signed certificate.

    1. Run the following command:

      keytool -genkeypair -keyalg RSA -alias my-saml-key -keypass change-me -storepass change-me -keystore my-saml.keystore -storetype JCEKS
      
    2. Place the generated my-saml.keystore file into a location of your choice that is accessible to the repository.

      Set the file permissions accordingly to limit who can read it.

    3. (Recommended) To use the latest keystore configuration method, set the following as JVM properties. For example, for a Tomcat installation, set them using JAVA_TOOL_OPTIONS:

      set "JAVA_TOOL_OPTIONS=-Dsaml-keystore.aliases=my-saml-key -Dsaml-keystore.password=password_AES -Dsaml-keystore.my-saml-key.password=password_AES -Dsaml-keystore.my-saml-key.algorithm=AES"
      
    4. (Deprecated) To continue using the old keystore configuration method:

      1. Generate a SAML keystore metadata file in the same location as the keystore and add the following content:

         aliases=my-saml-key
         keystore.password=change-me
         my-saml-key.password=change-me
        

        Set the file permissions accordingly to limit who can read it.

      2. Set the following values in the alfresco-global.properties file:

         saml.keystore.location=<full pathname>/my-saml.keystore
         saml.keystore.keyMetaData.location=<full pathname>/my-saml-keystore-passwords.properties
        

        Note: This deprecated method is not recommended. You should review and switch to using the updated method described earlier.

    5. Restart the Alfresco Content Services server.

    6. Use the SAML Admin Console Download SP Certificate button to download the certificate for your SP, which can then be uploaded to your IdP.

    7. Stop the Alfresco server.

  7. Locate your share-config-custom.xml.sample file.

    This sample configuration file is shipped with SAML and shows the required rules and properties that need to be added to the CSRFPolicy to allow SAML logouts.

    1. If you are using Alfresco Share as your service provider, and you have custom CSRFPolicy configurations in your installation, copy and paste the SAML SPECIFIC CONFIG section of the sample file into your custom CSRFPolicy filter, and save.

    2. If you have a share-config-custom.xml file in your Alfresco Share installation, merge the contents of share-config-custom.xml.sample into your share-config-custom.xml file, and save.

    3. Alternatively, if you do not have a share-config-custom.xml in your Alfresco Share installation, rename share-config-custom.xml.sample to share-config-custom.xml.

    4. Review the details in the CSRFPolicy section for accuracy.

  8. Restart the Alfresco Content Services server.

Uninstall steps

Use the Module Management Tool to uninstall the SAML Module from Alfresco Content Services.

  1. Stop the Alfresco server.

  2. Use the information in Uninstalling an AMP file to uninstall each AMP file.

    For example, from the Alfresco root directory, you need two commands:

     java -jar bin/alfresco-mmt.jar uninstall alfresco-saml-repo tomcat/webapps/alfresco.war
     java -jar alfresco-mmt.jar uninstall alfresco-saml-share tomcat/webapps/share.war
    

    Use these commands to check whether the AMP files were removed:

     java -jar bin/alfresco-mmt.jar list tomcat/webapps/alfresco.war
     java -jar bin/alfresco-mmt.jar list tomcat/webapps/share.war
    
  3. Delete the tomcat/webapps/alfresco and tomcat/webapps/share folders in the Alfresco installation directory.

    Deleting these directories forces Tomcat to read the edited WAR files when Alfresco is restarted.

  4. Remove any share-config-custom.xml customizations that you added when you installed the SAML module.

    For example:

    1. If you are using Alfresco Share as your service provider, and you have custom CSRFPolicy configurations in your installation, remove the SAML SPECIFIC CONFIG section, and save.

    2. Remove the contents of share-config-custom.xml.sample from your share-config-custom.xml file, and save. If there is no other content in your share-config-custom.xml file, you can simply remove the file.

  5. Restart the Alfresco server.

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