Add a banner at the top on unknown HTML page on the fly; Send a note to network user
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by Vi
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Published on 2010-04-24T20:05:35Z
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2010/04/24
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I want to be able to send messages to users of network that my computer routes to.
Modifying requested pages, by adding messages like
Warning: this access point is going down soon"
or
Network quota exhausted
or
You are overusing the network connection and may be banned
or
Security notice: this is unencrypted network, so everybody around can see this page too
It seems the only good solution (as there is no general "Send notice to users of my access point" thing). All traffic is already routed through -j REDIRECT, socat and remote SOCSK5 server, so intercepting unencrypted content should be easy.
How it's better to add a message? Just inserting
<div style="color:white; background-color:red">Sorry, connect_me access point is going down soon...</div>as the first element of<body>breaks design of some pages (f.e. Wikipedia).Should I also add some "Cache-control" directive to prevent persisting such messages?
/* smdclient messages are poor solution, as them are Windows-only and can disturb users not using the network */
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