Git/gitosis: How to check validity of user name and email?

Question

I have installed git and gitosis and I need to add a check that the user name is valid when something is pushed into the repository.

I reckon the pre-receive hook i

Answer 1

That script is broken in several ways. First, the open() line is cut off. After I fixed that, the script went into an infinite loop on the first while(), not even attempting to call git-rev-list.

With a little help from my friends, I managed to spruce it up a bit:

hooks/pre-receive

#!/usr/bin/perl

my $user = $ENV{'GITOSIS_USER'};

if ($user !~ m/^[^@]+@[^@]+$/ ) {
  print STDERR "Unknown user. Not running under Gitosis?\n";
  exit 1;
}

my $fail = 0;

while() {
  if (m/^([0-9a-f]+)\s+([0-9a-f]+)\s+(\S+)$/) {

    my $oldver = $1;
    my $curver = $2;
    my $ref = $3;

    my $ret = open (FH, "-|", "git", "rev-list", '--    pretty=format:%H:%ae:%ce',"$oldver..$curver");

    if ($ret) {
      while () {
        chomp;
        my $line = $_;
        if ($_ !~ m/commit /) {
          my ($rev, $author, $committer) = split(":", $line);
          if ( $author ne $user && $committer ne $user ) {
            print STDERR "Unauthorized commit: $rev\n";
            print STDERR "You must specify Author and Committer.\n";
            print STDERR "Specified a/c: $author / $committer\n";
            print STDERR "Expected user: $user\n";
            $fail++;
          }
        }
      }
    }
  }
}

if ($fail) {
  exit 1;
}

exit 0;