Pear Oai Changelog

0.4

New Featurs:

• PEAR::OAI server reduced to only care about protocol layer, content response is created by backend
• modular plugin architecture for various types of backends provided by different vendors
• modular plugin architecture for markup output
• getRecord takes metadata prefix as argument
• moved methods for identifier masquerading to backend abstract class (Server/Backend.php)
• check if backend supports a certain method
• split descriptions (e.g. friends) from Identify.tpl to separate templates
• new helper class for template parsing (Server/Output.php)
• using static oai prefix when dealing with masquerading (better performance)

Bugs fixed:

• renamed Server/tpl/ListIdentifiers_oai_dc.tpl to Server/tpl/ListIdentifiers.tpl because there is no output specific to a metadata format
• stripped off php version check in OAI_Base::xmlEncode() because we only work with PHP >= 4.2.0
• all XML output UTF-8 encoded

Miscellaneous

• replaced OAI_Base::recordStorage() with OAI_Server::backend()
• OAI_Server::backend takes instantiated backend object as argument
• deleted template_path option for OAI, instead, we have packages for output, located in the OAI/Output/ directory
• more documentation, now edited online in a Wiki at http://www.zzoss.com/phpwiki/index.php/PearOai

0.3

New Featurs:

• almost full OAI-PMH version 2.0 compliance (tested with OAI Repository Explorer, http://oai.dlib.vt.edu/cgi-bin/Explorer/oai2.0/testoai)
• requires PHP greater or equal 4.2.0 due to session bug in PHP 4.1.2
• debug mode to track errors
• checks if resumption token is within expiration date
• added OAI_Base::getPackageVersion()
• automatically compose sample identifier
• store tokens either in filesystem or DB (using PEAR::HTTP_Session)

Bugs fixed:

• empty response with gzip encoding
• OAI Repository Explorer error: "White space is required between the public identifier and the system identifier" caused by wrong assignment of OAI schema location constant
• OAI Repository Explorer error: "Datatype error: In element 'repositoryIdentifier' : Value 'aName' does not match regular expression facet '[a-zA-Z][a-zA-Z0-9\-]*(\.[a-zA-Z][a-zA-Z0-9\-]+)+'..". Resolution: changed aName to example.com because dot is required
• OAI Repository Explorer error: "The content of element type "metadata" is incomplete, it must match "(##other:uri=http://www.openarchives.org/OAI/2.0/)". Resolution: caused by left-over opening and closing metadata tag when showing deleted records
• datestamp in GetRecord and ListRecords was not UTC conform

0.2

New Featurs:

• resumption token uses PHP session functions instead of homegrown token storage management. this way, the built-in PHP session functionality can be used, e.g. like defining different storage backends, garbage collection, etc.
• added ini_set('include_path', ) in tests/oai_server.php
• check whether ob_gzhandler is turned on in php.ini if user decided to turn on gzip compression for OAI Server
• check if zlib.output_compression is off in php.ini to avoid interference with ob_gzhandler
• OAI Server now issues HTTP 500 Internal Server Error if anything went wrong inside that is not specified as OAI protocol error
• added missing inline comments

Bugs fixed:

• package.xml

  • deleting Client.php from filelist
  • adding Token/Container/File.php to filelist

• DSN of token storage was not passed properly
• wrong time string in responseDate of OAI envelope and expirationDate of resumption Token

0.1.1

Bugs fixed:

• package.xml: added missing Token/ files

-- SandroZic