Lots of copied code from the Grouper repository

[forgedhallpass]

The following classes:

• org.owasp.csrfguard.config.overlay.ConfigPropertiesCascadeBase (original source code)
• org.owasp.csrfguard.config.overlay.ConfigPropertiesCascadeCommonUtils
• org.owasp.csrfguard.config.overlay.ConfigPropertiesCascadeUtils

were copied from the Grouper repository.

It seems that only a few changes has been made:

• Logging: although the code is commented out, so it's not relevant (org.owasp.csrfguard.config.overlay.ConfigPropertiesCascadeBase#iLogger)

• Skipping the Expression Language (EL) related processing in org.owasp.csrfguard.config.overlay.ConfigPropertiesCascadeBase#propertiesHelper: again this is only relevant if there are keys with ".elConfig" suffix

• The following lines of code:

  //InputStream inputStream = configFile.getConfigFileType().inputStream(configFile.getConfigFileTypeConfig(), this);
  try {
      //get the string and store it first (to see if it changes later)
      String configFileContents = configFile.retrieveContents(this);
      configFile.setContents(configFileContents);
      result.properties.load(new StringReader(configFileContents));

  in org.owasp.csrfguard.config.overlay.ConfigPropertiesCascadeBase#retrieveFromConfigFiles which seem to do the same as the original code.

The question is, are these modifications really needed? If not, the original code could be used as a maven dependency:

<dependency>
     <groupId>edu.internet2.middleware.grouper</groupId>
     <artifactId>grouper-activemq</artifactId>
     <version>2.5.29</version>
</dependency>

Side note: the Grouper project is outdated/bulky/poorly written with a lot of duplicated code from the org.apache.commons:commons-lang3 and other common libraries. It would be nice to replace with a better alternative

[forgedhallpass]

This issue has been manually transferred from the old repository. See: aramrami/OWASP-CSRFGuard#127

[forgedhallpass]

The logic under the overlay package will have to be thrown out/rewritten.

Initial clean-up: 1b9b89a