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| author | Phil Miller <mille121@illinois.edu> | 2009-12-30 13:35:31 -0600 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2009-12-30 14:08:09 -0800 |
| commit | 03bd0d601ea842b2db5bd40a1f7f036989f9b517 (patch) | |
| tree | 9da885f8a5822737478e5b98044644188ec21bc9 /git-cvsserver.perl | |
| parent | 902f235378cb2b2f6dd5dd664b9630c95321f0ae (diff) | |
| download | git-03bd0d601ea842b2db5bd40a1f7f036989f9b517.tar.gz git-03bd0d601ea842b2db5bd40a1f7f036989f9b517.tar.xz | |
CVS Server: Support reading base and roots from environment
The Gitosis single-account Git/ssh hosting system runs git commands
through git-shell after confirming that the connecting user is
authorized to access the requested repository. This works well for
upload-pack and receive-pack, which take a repository argument through
git-shell. This doesn't work so well for `cvs server', which is passed
through literally, with no arguments. Allowing arguments risks
sneaking in `--export-all', so that restriction should be maintained.
Despite that, passing a repository root is necessary for per-user
access control by the hosting software, and passing a base path
improves usability without weakening security. Thus, git-cvsserver
needs to come up with these values at runtime by some other
means. Since git-shell preserves the environment for other purposes,
the environment can carry these arguments as well.
Thus, modify git-cvsserver to read $GIT_CVSSERVER_{BASE_PATH,ROOT} in
the absence of equivalent command line arguments.
Signed-off-by: Phil Miller <mille121@illinois.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-cvsserver.perl')
| -rwxr-xr-x | git-cvsserver.perl | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/git-cvsserver.perl b/git-cvsserver.perl index 6dc45f5d4..f5b57b9cb 100755 --- a/git-cvsserver.perl +++ b/git-cvsserver.perl @@ -104,6 +104,7 @@ $log->info("--------------- STARTING -----------------"); my $usage = "Usage: git cvsserver [options] [pserver|server] [<directory> ...]\n". " --base-path <path> : Prepend to requested CVSROOT\n". + " Can be read from GIT_CVSSERVER_BASE_PATH\n". " --strict-paths : Don't allow recursing into subdirectories\n". " --export-all : Don't check for gitcvs.enabled in config\n". " --version, -V : Print version information and exit\n". @@ -111,7 +112,8 @@ my $usage = "\n". "<directory> ... is a list of allowed directories. If no directories\n". "are given, all are allowed. This is an additional restriction, gitcvs\n". - "access still needs to be enabled by the gitcvs.enabled config option.\n"; + "access still needs to be enabled by the gitcvs.enabled config option.\n". + "Alternately, one directory may be specified in GIT_CVSSERVER_ROOT.\n"; my @opts = ( 'help|h|H', 'version|V', 'base-path=s', 'strict-paths', 'export-all' ); @@ -148,6 +150,24 @@ if ($state->{'export-all'} && !@{$state->{allowed_roots}}) { die "--export-all can only be used together with an explicit whitelist\n"; } +# Environment handling for running under git-shell +if (exists $ENV{GIT_CVSSERVER_BASE_PATH}) { + if ($state->{'base-path'}) { + die "Cannot specify base path both ways.\n"; + } + my $base_path = $ENV{GIT_CVSSERVER_BASE_PATH}; + $state->{'base-path'} = $base_path; + $log->debug("Picked up base path '$base_path' from environment.\n"); +} +if (exists $ENV{GIT_CVSSERVER_ROOT}) { + if (@{$state->{allowed_roots}}) { + die "Cannot specify roots both ways: @ARGV\n"; + } + my $allowed_root = $ENV{GIT_CVSSERVER_ROOT}; + $state->{allowed_roots} = [ $allowed_root ]; + $log->debug("Picked up allowed root '$allowed_root' from environment.\n"); +} + # if we are called with a pserver argument, # deal with the authentication cat before entering the # main loop |