Bugfixing of existing Drupal module

I appreciate help for bugfixing of a custom Drupal module that was written for me but not finished anymore. The module answers http requests with links to certain contents (e.g. images). Authentication is done with tokens according to oauth protocol: 1. Client asks for token 2. Server answers with token 3. Client asks for content with this token 4. Server answers with content 5. Token will be deleted Currently the module answers every request, independent of correct key/secret for the token. If the module shall answer random contents, always the same content is given back -> no randomness. Detailed information will be given after project assignment. After finishing the bugfixing, more functions should be included into the module, so I'm looking for long term support. You should be able to introduce yourself into the existing code and fixing the bugs. Own ideas are welcome. Thanks for your bids in advance!