refactored and lifted out the line parse part from inside parse_conf_file
adapted from code by kpfleming@digium.com. I basically cherry-picked the top commit on "pu-work" (30068d1) on his fork at github, and made some minor fixups to it
This commit is contained in:
Sitaram Chamarty
parent
5f342c0444
commit
7b633049be
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@ -163,6 +163,180 @@ sub check_fragment_repo_disallowed
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return 1;
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}
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sub parse_conf_line
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{
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my ($line, $fragment, $repos_p, $ignored_p) = @_;
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# user or repo groups
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if ($line =~ /^(@\S+) = (.*)/)
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{
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die "$ABRT defining groups is not allowed inside fragments\n"
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if $GL_BIG_CONFIG and $fragment ne 'master';
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# store the members of each group as hash key. Keep track of when
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# the group was *first* created by using $fragment as the *value*
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do { $groups{$1}{$_} ||= $fragment } for ( expand_list( split(' ', $2) ) );
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die "$ABRT bad group $1\n" unless $1 =~ $REPONAME_PATT;
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}
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# repo(s)
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elsif ($line =~ /^repo (.*)/)
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{
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# grab the list...
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@{ $repos_p } = split ' ', $1;
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unless (@{ $repos_p } == 1 and $repos_p->[0] eq '@all') {
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# ...expand groups in the default case
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@{ $repos_p } = expand_list ( @{ $repos_p } ) unless $GL_BIG_CONFIG;
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# ...sanity check
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for (@{ $repos_p }) {
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die "$ABRT bad reponame $_\n"
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if ($GL_WILDREPOS and $_ !~ $REPOPATT_PATT);
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die "$ABRT bad reponame $_ or you forgot to set \$GL_WILDREPOS\n"
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if (not $GL_WILDREPOS and $_ !~ $REPONAME_PATT);
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}
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}
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s/\bCREAT[EO]R\b/\$creator/g for @{ $repos_p };
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}
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# actual permission line
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elsif ($line =~ /^(-|C|R|RW\+?(?:C?D?|D?C?)) (.* )?= (.+)/)
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{
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my $perms = $1;
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my @refs; @refs = split( ' ', $2 ) if $2;
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@refs = expand_list ( @refs );
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my @users = split ' ', $3;
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die "$ABRT \$GL_WILDREPOS is not set, you cant use 'C' in config\n" if $perms eq 'C' and not $GL_WILDREPOS;
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# if no ref is given, this PERM applies to all refs
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@refs = qw(refs/.*) unless @refs;
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# deprecation warning
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map { warn "WARNING: old syntax 'PATH/' found; please use new syntax 'NAME/'\n" if s(^PATH/)(NAME/) } @refs;
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# fully qualify refs that dont start with "refs/" or "NAME/";
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# prefix them with "refs/heads/"
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@refs = map { m(^(refs|NAME)/) or s(^)(refs/heads/); $_ } @refs;
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@refs = map { s(/USER/)(/\$gl_user/); $_ } @refs;
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# expand the user list, unless it is just "@all"
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@users = expand_list ( @users )
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unless ($GL_BIG_CONFIG or (@users == 1 and $users[0] eq '@all'));
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do { die "$ABRT bad username $_\n" unless $_ =~ $USERNAME_PATT } for @users;
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s/\bCREAT[EO]R\b/~\$creator/g for @users;
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s/\bREADERS\b/\$readers/g for @users;
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s/\bWRITERS\b/\$writers/g for @users;
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# ok, we can finally populate the %repos hash
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for my $repo (@{ $repos_p }) # each repo in the current stanza
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{
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# if we're processing a delegated config file (not the master
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# config), we need to prevent attempts by that admin to obtain
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# rights on stuff outside his domain
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# trying to set access for $repo (='foo')...
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if (check_fragment_repo_disallowed( $fragment, $repo ))
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{
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$ignored_p->{$fragment}{$repo} = 1;
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next;
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}
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for my $user (@users)
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{
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# lint check, to catch pubkey/username typos
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if ($user =~ /^@/ and $user ne '@all') {
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# this is a usergroup, not a normal user; happens with GL_BIG_CONFIG
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if (exists $groups{$user}) {
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$user_list{$_}++ for keys %{ $groups{$user} };
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}
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} else {
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$user_list{$user}++;
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}
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# for 1st level check (see faq/tips doc)
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$repos{$repo}{C}{$user} = 1, next if $perms eq 'C';
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$repos{$repo}{R}{$user} = 1 if $perms =~ /R/;
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$repos{$repo}{W}{$user} = 1 if $perms =~ /W|D/;
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# if the user specified even a single 'D' anywhere, make
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# that fact easy to find; this changes the meaning of RW+
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# to no longer permit deletes (see update hook)
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$repos{$repo}{DELETE_IS_D} = 1 if $perms =~ /D/;
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$repos{$repo}{CREATE_IS_C} = 1 if $perms =~ /RW.*C/;
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# for 2nd level check, store each "ref, perms" pair in order
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for my $ref (@refs)
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{
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# checking NAME based restrictions is expensive for
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# the update hook (see the changes to src/hooks/update
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# in this commit for why) so we would *very* much like
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# to avoid doing it for the large majority of repos
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# that do *not* use NAME limits. Setting a flag that
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# can be checked right away will help us do that
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$repos{$repo}{NAME_LIMITS} = 1 if $ref =~ /^NAME\//;
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my $p_user = $user; $p_user =~ s/(creator|readers|writers)$/$1 - wild/;
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push @{ $repos{$repo}{$p_user} }, [ $rule_seq++, $ref, $perms ]
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unless $rurp_seen{$repo}{$p_user}{$ref}{$perms}++;
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}
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}
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}
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}
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# configuration
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elsif ($line =~ /^config (.+) = ?(.*)/)
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{
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my ($key, $value) = ($1, $2);
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my @validkeys = split(' ', ($GL_GITCONFIG_KEYS || '') );
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my @matched = grep { $key =~ /^$_$/ } @validkeys;
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die "$ABRT git config $key not allowed\n" if (@matched < 1);
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for my $repo (@{ $repos_p }) # each repo in the current stanza
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{
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$repo_config{$repo}{$key} = $value;
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# no problem if it's a plain repo (non-pattern, non-groupname)
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# OR wild configs are allowed
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unless ( ($repo =~ $REPONAME_PATT and $repo !~ /^@/) or $GL_GITCONFIG_WILD) {
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my @r = ($repo); # single wildpatt
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@r = sort keys %{ $groups{$repo} } if $groups{$repo}; # or a group; get its members
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do {
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print STDERR "$WARN git config set for $_ but \$GL_GITCONFIG_WILD not set\n" unless $_ =~ $REPONAME_PATT
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} for @r;
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}
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}
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}
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# include
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elsif ($line =~ /^include "(.+)"/)
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{
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my $file = $1;
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$file = "$GL_ADMINDIR/conf/$file" unless $file =~ /^\//;
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die "$WARN $fragment attempting to include configuration\n" if $fragment ne 'master';
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die "$ABRT included file not found: '$file'\n" unless -f $file;
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parse_conf_file( $file, $fragment );
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}
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# very simple syntax for the gitweb description of repo; one of:
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# reponame = "some description string"
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# reponame "owner name" = "some description string"
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elsif ($line =~ /^(\S+)(?: "(.*?)")? = "(.*)"$/)
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{
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my ($repo, $owner, $desc) = ($1, $2, $3);
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die "$ABRT bad repo name $repo\n" unless $repo =~ $REPONAME_PATT;
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die "$WARN $fragment attempting to set description for $repo\n" if check_fragment_repo_disallowed( $fragment, $repo );
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$desc{"$repo.git"} = $desc;
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$owner{"$repo.git"} = $owner || '';
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}
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else
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{
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die "$ABRT can't make head or tail of '$line'\n";
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}
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}
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sub cleanup_conf_line
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{
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my ($line) = @_;
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# kill comments, but take care of "#" inside *simple* strings
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$line =~ s/^((".*?"|[^#"])*)#.*/$1/;
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# normalise whitespace; keeps later regexes very simple
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$line =~ s/=/ = /;
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$line =~ s/\s+/ /g;
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$line =~ s/^ //;
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$line =~ s/ $//;
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return $line;
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}
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sub parse_conf_file
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{
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my ($conffile, $fragment) = @_;
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@ -178,178 +352,20 @@ sub parse_conf_file
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# the syntax is fairly simple, so we parse it inline
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my @repos;
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my $line;
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while (<$conf_fh>)
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{
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# kill comments, but take care of "#" inside *simple* strings
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s/^((".*?"|[^#"])*)#.*/$1/;
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# normalise whitespace; keeps later regexes very simple
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s/=/ = /;
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s/\s+/ /g;
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s/^ //;
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s/ $//;
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# and blank lines
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next unless /\S/;
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$line = cleanup_conf_line($_);
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# skip blank lines
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next unless $line =~ /\S/;
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# user or repo groups
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if (/^(@\S+) = (.*)/)
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{
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die "$ABRT defining groups is not allowed inside fragments\n"
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if $GL_BIG_CONFIG and $fragment ne 'master';
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# store the members of each group as hash key. Keep track of when
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# the group was *first* created by using $fragment as the *value*
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do { $groups{$1}{$_} ||= $fragment } for ( expand_list( split(' ', $2) ) );
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die "$ABRT bad group $1\n" unless $1 =~ $REPONAME_PATT;
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}
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# repo(s)
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elsif (/^repo (.*)/)
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{
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# grab the list...
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@repos = split ' ', $1;
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unless (@repos == 1 and $repos[0] eq '@all') {
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# ...expand groups in the default case
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@repos = expand_list ( @repos ) unless $GL_BIG_CONFIG;
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# ...sanity check
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for (@repos) {
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die "$ABRT bad reponame $_\n"
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if ($GL_WILDREPOS and $_ !~ $REPOPATT_PATT);
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die "$ABRT bad reponame $_ or you forgot to set \$GL_WILDREPOS\n"
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if (not $GL_WILDREPOS and $_ !~ $REPONAME_PATT);
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}
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}
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s/\bCREAT[EO]R\b/\$creator/g for @repos;
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}
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# actual permission line
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elsif (/^(-|C|R|RW\+?(?:C?D?|D?C?)) (.* )?= (.+)/)
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{
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my $perms = $1;
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my @refs; @refs = split(' ', $2) if $2;
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@refs = expand_list ( @refs );
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my @users = split ' ', $3;
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die "$ABRT \$GL_WILDREPOS is not set, you cant use 'C' in config\n" if $perms eq 'C' and not $GL_WILDREPOS;
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# if no ref is given, this PERM applies to all refs
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@refs = qw(refs/.*) unless @refs;
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# deprecation warning
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map { warn "WARNING: old syntax 'PATH/' found; please use new syntax 'NAME/'\n" if s(^PATH/)(NAME/) } @refs;
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# fully qualify refs that dont start with "refs/" or "NAME/";
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# prefix them with "refs/heads/"
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@refs = map { m(^(refs|NAME)/) or s(^)(refs/heads/); $_ } @refs;
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@refs = map { s(/USER/)(/\$gl_user/); $_ } @refs;
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# expand the user list, unless it is just "@all"
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@users = expand_list ( @users )
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unless ($GL_BIG_CONFIG or (@users == 1 and $users[0] eq '@all'));
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do { die "$ABRT bad username $_\n" unless $_ =~ $USERNAME_PATT } for @users;
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s/\bCREAT[EO]R\b/~\$creator/g for @users;
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s/\bREADERS\b/\$readers/g for @users;
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s/\bWRITERS\b/\$writers/g for @users;
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# ok, we can finally populate the %repos hash
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for my $repo (@repos) # each repo in the current stanza
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{
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# if we're processing a delegated config file (not the master
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# config), we need to prevent attempts by that admin to obtain
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# rights on stuff outside his domain
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# trying to set access for $repo (='foo')...
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if (check_fragment_repo_disallowed($fragment, $repo))
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{
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$ignored{$fragment}{$repo} = 1;
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next;
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}
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for my $user (@users)
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{
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# lint check, to catch pubkey/username typos
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if ($user =~ /^@/ and $user ne '@all') {
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# this is a usergroup, not a normal user; happens with GL_BIG_CONFIG
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if (exists $groups{$user}) {
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$user_list{$_}++ for keys %{ $groups{$user} };
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}
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} else {
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$user_list{$user}++;
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}
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# for 1st level check (see faq/tips doc)
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$repos{$repo}{C}{$user} = 1, next if $perms eq 'C';
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$repos{$repo}{R}{$user} = 1 if $perms =~ /R/;
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$repos{$repo}{W}{$user} = 1 if $perms =~ /W|D/;
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# if the user specified even a single 'D' anywhere, make
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# that fact easy to find; this changes the meaning of RW+
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# to no longer permit deletes (see update hook)
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$repos{$repo}{DELETE_IS_D} = 1 if $perms =~ /D/;
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$repos{$repo}{CREATE_IS_C} = 1 if $perms =~ /RW.*C/;
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# for 2nd level check, store each "ref, perms" pair in order
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for my $ref (@refs)
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{
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# checking NAME based restrictions is expensive for
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# the update hook (see the changes to src/hooks/update
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# in this commit for why) so we would *very* much like
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# to avoid doing it for the large majority of repos
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# that do *not* use NAME limits. Setting a flag that
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# can be checked right away will help us do that
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$repos{$repo}{NAME_LIMITS} = 1 if $ref =~ /^NAME\//;
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my $p_user = $user; $p_user =~ s/(creator|readers|writers)$/$1 - wild/;
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push @{ $repos{$repo}{$p_user} }, [ $rule_seq++, $ref, $perms ]
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unless $rurp_seen{$repo}{$p_user}{$ref}{$perms}++;
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}
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}
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}
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}
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# configuration
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elsif (/^config (.+) = ?(.*)/)
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{
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my ($key, $value) = ($1, $2);
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my @validkeys = split (' ', ($GL_GITCONFIG_KEYS || ''));
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my @matched = grep { $key =~ /^$_$/ } @validkeys;
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die "$ABRT git config $key not allowed\n" if (@matched < 1);
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for my $repo (@repos) # each repo in the current stanza
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{
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$repo_config{$repo}{$key} = $value;
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# no problem if it's a plain repo (non-pattern, non-groupname)
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# OR wild configs are allowed
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unless ( ($repo =~ $REPONAME_PATT and $repo !~ /^@/) or $GL_GITCONFIG_WILD) {
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my @r = ($repo); # single wildpatt
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@r = sort keys %{ $groups{$repo} } if $groups{$repo}; # or a group; get its members
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do {
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print STDERR "$WARN git config set for $_ but \$GL_GITCONFIG_WILD not set\n" unless $_ =~ $REPONAME_PATT
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} for @r;
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}
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}
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}
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# include
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elsif (/^include "(.+)"/)
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{
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my $file = $1;
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$file = "$GL_ADMINDIR/conf/$file" unless $file =~ /^\//;
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die "$WARN $fragment attempting to include configuration\n" if $fragment ne 'master';
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die "$ABRT included file not found: '$file'\n" unless -f $file;
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parse_conf_file($file, $fragment);
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}
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# very simple syntax for the gitweb description of repo; one of:
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# reponame = "some description string"
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# reponame "owner name" = "some description string"
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elsif (/^(\S+)(?: "(.*?)")? = "(.*)"$/)
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{
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my ($repo, $owner, $desc) = ($1, $2, $3);
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die "$ABRT bad repo name $repo\n" unless $repo =~ $REPONAME_PATT;
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die "$WARN $fragment attempting to set description for $repo\n" if check_fragment_repo_disallowed($fragment, $repo);
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$desc{"$repo.git"} = $desc;
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$owner{"$repo.git"} = $owner || '';
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}
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else
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{
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die "$ABRT can't make head or tail of '$_'\n";
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}
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parse_conf_line( $line, $fragment, \@repos, \%ignored );
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}
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for my $ig (sort keys %ignored)
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{
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warn "\n\t\t***** WARNING *****\n" .
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"\t$ig.conf attempting to set access for " .
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join (", ", sort keys %{ $ignored{$ig} }) . "\n";
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"\t$ig.conf attempting to set access for " .
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join (", ", sort keys %{ $ignored{$ig} }) . "\n";
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}
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}
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