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33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
# HTTP - Audio over HyperText Transfer Protocol (RFC 2616)
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# Pattern attributes: good notsofast notsofast subset
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# Protocol groups: streaming_audio document_retrieval ietf_draft_standard
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# Wiki: http://protocolinfo.org/wiki/HTTP
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# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE
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#
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# Usually runs on port 80
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#
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# Contributed by Deepak Seshadri <dseshadri AT broadbandmaritime.com>
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#
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# This pattern has been tested and is believed to work well.
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#
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# To get or provide more information about this protocol and/or pattern:
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# http://www.protocolinfo.org/wiki/HTTP
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# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
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#
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# If you use this, you should be aware that:
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#
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# - they match both simple downloads of audio/video and streaming content.
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#
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# - blocking based on content-type encourages server
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# writers/administrators to misreport content-type (which will just make
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# headaches for everyone, including us), so I would strongly recommend
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# shaping audio/video down to a speed that discourages use of streaming
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# players without actually blocking it.
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#
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# - obviously, since this is a subset of HTTP, you need to match it
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# earlier in your iptables rules than HTTP.
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httpaudio
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http/(0\.9|1\.0|1\.1)[\x09-\x0d ][1-5][0-9][0-9][\x09-\x0d -~]*(content-type: audio)
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