webapp: Ensure that ssh keys generated for different directories on a server are always different.
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@ -12,3 +12,33 @@ Linux 64bit
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Please provide any additional information below.
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git and git-annex are available on the Remote Server
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> While this bug report was about a server that did not get git-annex-shell
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> installed in PATH (something trivially fixed by `apt-get install
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> git-annex`), the comments below would like to turn this into a bug report about
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> the error message "unknown UUID; cannot modify". All right then..
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> --[[Joey]]
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>
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> This can occur if a ssh key is locked down to use directory A, and a
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> new repo is added in directory B which uses the same ssh key. Things will
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> then fail when git-annex-shell rejects the attept to use directory B, and
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> this results in the webapp displaying an internal server error of
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> "unknown UUID; cannot modify" since NoUUID is retreived for the repo.
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>
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> In fact, I already dealt with this
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> once in 79561774450c8abf7c2cb42b08575a3ca27010dc; it used to not use
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> the directory name at all as part of the mangled hostname. Most of the
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> "me too" responses" predate that fix.
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>
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> Now, this can only happen
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> if the mangled hostname for directory A and B is the same. One way this can
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> happen is if the directories are "annex" and "~/annex". In other words,
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> I suspect that users are entering "annex" once, and "~/annex" another
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> time, when setting up what they intend to be the same repo. Perhaps the
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> first time something else fails (like the original problem of
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> git-annex-shell not being in path), or they want to set it up again,
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> and the next time the subtly different directory is entered.
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>
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> To fix this,
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> `mangleSshHostName` would need to be changed to generate different mangled
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> hostnames in all cases. Currently, it skips non-alpha-numeric
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> characters in the directory. [[done]] --[[Joey]]
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