I am aware that people can manipulate the referer, but as the WMS is
currently configured, anyone can just use the service and embed it into
their own application, which would not only cause additional traffic on
my server, but would also be problematic from a copyright point of view.
Unfortunately, in Europe, geodata isn't free, and therefore we have to
protect it, at least to a certain extent.
I am also aware that the images end up in the cache and anyone can copy
them, but the referer thing is not to prevent people stealing single
images (I don't care about that), but to prevent people building bigger
or even commercial services around my WMS, without asking the data
distributor for permission.
If I am unable to secure the WMS to a certain extent, I am not allowed
to publish the service, which would be sad.
Anyway, it would be useful, if Batik would send the referer data, also
for webserver logfile statistics.
Andreas
Michael Mosmann wrote:
Am Freitag, den 11.08.2006, 12:52 +0200 schrieb Andreas Neumann:
Hello,
I have a way to restrict this
in Apache by using the referer information. If a request has been made
from my own domain (or specific files), access is granted, otherwise not.
This is only a soft protection, cause proxy or application can
manipulate this header entry. So if i want to access your service i
would fake this header information.
mm:)
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Andreas Neumann
Institute of Cartography
ETH Zurich
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CH-8093 Zurich, Switzerland
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