Probably by writing a censoring, filtering proxy in Perl... which can be quite tricky (at least for me).
Greetz
Beatnik
... Quidquid perl dictum sit, altum viditur. | [reply] |
I have a proxy that filters ads and "web bugs".
Years ago, I wrote a proxy for DICOM protocal (used in medical imaging machines) to serve as a sniffer. It decodes the data stream and shows the user, and allows a Perl script to make changes to the data, re-encodes it, and passes it along.
This was a hibrid solution, using NT-specific functions for high-speed throughput of the read/write (I/O completion ports and no copying of buffers in between), and an embedded Perl interpreter to decode the data that's T'ed out from it.
—John
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