Initial support for the Cross-Origin Resource Sharing specification.
This allows JavaScript to make requests across domain boundaries.
Also reviewed the filter example to get rid of the context and
the generic classes (we can actually use {WSF_REQUEST}.execution_variable
and {WSF_REQUEST}.set_execution_variable).
Links:
* How to enable server-side: http://enable-cors.org/server.html
* Specification: http://www.w3.org/TR/cors/
* Github: http://developer.github.com/v3/#cross-origin-resource-sharing
The logging filter is now part of EWF core (before it was only available in
the filter example) and can therefore be reused by others needing it.
Note that this is a first implementation. It can certainly be improved in
the future to support more fine grained logging.
(note: this commit is a merged of pull request from Olivier Ligot, and changes from Jocelyn Fiat)
Signed-off-by: Jocelyn Fiat <jfiat@eiffel.com>
Signed-off-by: Olivier Ligot <oligot@gmail.com>
Filters are part of a filter chain, thus following the chain of responsability
design pattern.
More information are available in library/server/wsf/src/filter/README.md
