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authorJoey Hess <joey@kodama.kitenet.net>2008-10-22 20:52:34 -0400
committerJoey Hess <joey@kodama.kitenet.net>2008-10-22 20:52:34 -0400
commit094af3d113f375f7faf2abf283615582a9977a65 (patch)
treedcd6a3b7f2195be55d2493f1f5a469fd0b4afb4c /IkiWiki/Plugin
parent9fc126ada6aafe57609c0741d299056588cffc82 (diff)
initial support for git repos with untrusted committers
Still need to wire up the calls to check_* , but it's cold out here and my hands are going numb, so enough for now.
Diffstat (limited to 'IkiWiki/Plugin')
-rw-r--r--IkiWiki/Plugin/git.pm115
1 files changed, 105 insertions, 10 deletions
diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
index 14b0ab285..1facb14c0 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
@@ -23,6 +23,7 @@ sub import { #{{{
hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
+ hook(type => "rcs", id => "rcs_test_receive", call => \&rcs_test_receive);
} #}}}
sub checkconfig () { #{{{
@@ -32,12 +33,21 @@ sub checkconfig () { #{{{
if (! defined $config{gitmaster_branch}) {
$config{gitmaster_branch}="master";
}
- if (defined $config{git_wrapper} && length $config{git_wrapper}) {
+ if (defined $config{git_wrapper} &&
+ length $config{git_wrapper}) {
push @{$config{wrappers}}, {
wrapper => $config{git_wrapper},
wrappermode => (defined $config{git_wrappermode} ? $config{git_wrappermode} : "06755"),
};
}
+ if (defined $config{git_test_receive_wrapper} &&
+ length $config{git_test_receive_wrapper}) {
+ push @{$config{wrappers}}, {
+ test_receive => 1,
+ wrapper => $config{git_test_receive_wrapper},
+ wrappermode => "0755",
+ };
+ }
} #}}}
sub getsetup () { #{{{
@@ -60,6 +70,20 @@ sub getsetup () { #{{{
safe => 0,
rebuild => 0,
},
+ git_test_receive_wrapper => {
+ type => "string",
+ example => "/git/wiki.git/hooks/pre-receive",
+ description => "git pre-receive hook to generate",
+ safe => 0, # file
+ rebuild => 0,
+ },
+ git_untrusted_committers => {
+ type => "string",
+ example => [],
+ description => "unix users whose commits should be checked by the pre-receive hook",
+ safe => 0,
+ rebuild => 0,
+ },
historyurl => {
type => "string",
example => "http://git.example.com/gitweb.cgi?p=wiki.git;a=history;f=[[file]]",
@@ -320,6 +344,9 @@ sub parse_diff_tree ($@) { #{{{
'file' => decode("utf8", $file),
'sha1_from' => $sha1_from[0],
'sha1_to' => $sha1_to,
+ 'mode_from' => $mode_from[0],
+ 'mode_to' => $mode_to,
+ 'status' => $status,
};
}
next;
@@ -331,14 +358,12 @@ sub parse_diff_tree ($@) { #{{{
} #}}}
sub git_commit_info ($;$) { #{{{
- # Return an array of commit info hashes of num commits (default: 1)
+ # Return an array of commit info hashes of num commits
# starting from the given sha1sum.
-
my ($sha1, $num) = @_;
- $num ||= 1;
-
- my @raw_lines = run_or_die('git', 'log', "--max-count=$num",
+ my @raw_lines = run_or_die('git', 'log',
+ (defined $num ? "--max-count=$num" : ""),
'--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
'-r', $sha1, '--', '.');
my ($prefix) = run_or_die('git', 'rev-parse', '--show-prefix');
@@ -355,7 +380,6 @@ sub git_commit_info ($;$) { #{{{
sub git_sha1 (;$) { #{{{
# Return head sha1sum (of given file).
-
my $file = shift || q{--};
# Ignore error since a non-existing file might be given.
@@ -378,7 +402,6 @@ sub rcs_update () { #{{{
sub rcs_prepedit ($) { #{{{
# Return the commit sha1sum of the file when editing begins.
# This will be later used in rcs_commit if a merge is required.
-
my ($file) = @_;
return git_sha1($file);
@@ -475,7 +498,7 @@ sub rcs_recentchanges ($) { #{{{
error($@) if $@;
my @rets;
- foreach my $ci (git_commit_info('HEAD', $num)) {
+ foreach my $ci (git_commit_info('HEAD', $num || 1)) {
# Skip redundant commits.
next if ($ci->{'comment'} && @{$ci->{'comment'}}[0] eq $dummy_commit_msg);
@@ -558,11 +581,83 @@ sub rcs_getctime ($) { #{{{
$file =~ s/^\Q$config{srcdir}\E\/?//;
my $sha1 = git_sha1($file);
- my $ci = git_commit_info($sha1);
+ my $ci = git_commit_info($sha1, 1);
my $ctime = $ci->{'author_epoch'};
debug("ctime for '$file': ". localtime($ctime));
return $ctime;
} #}}}
+sub rcs_test_receive () { #{{{
+ # quick success if the user is trusted
+ my $committer=(getpwuid($<))[0];
+ if (! defined $committer) {
+ error("cannot determine username for $<");
+ }
+ exit 0 if ! ref $config{git_untrusted_committers} ||
+ ! grep { $_ eq $committer } @{$config{git_untrusted_committers}};
+
+ # The wiki may not be the only thing in the git repo.
+ # Determine if it is in a subdirectory by examining the srcdir,
+ # and its parents, looking for the .git directory.
+ my $subdir="";
+ my $dir=$config{srcdir};
+ while (! -d "$dir/.git") {
+ $subdir=IkiWiki::basename($dir)."/".$subdir;
+ $dir=IkiWiki::dirname($dir);
+ if (! length $dir) {
+ error("cannot determine root of git repo");
+ }
+ }
+
+ my @errors;
+ while (<>) {
+ chomp;
+ my ($oldrev, $newrev, $refname) = split(' ', $_, 3);
+
+ # only allow changes to gitmaster_branch
+ if ($refname !~ /^refs\/heads\/\Q$config{gitmaster_branch}\E$/) {
+ push @errors, sprintf(gettext("you are not allowed to change %s"), $refname);
+ }
+
+ foreach my $ci (git_commit_info($oldrev."..".$newrev)) {
+ foreach my $detail (@{ $ci->{'details'} }) {
+ my $file = $detail->{'file'};
+
+ # check that all changed files are in the subdir
+ if (length $subdir &&
+ ! ($file =~ s/^\Q$subdir\E//)) {
+ push @errors, sprintf(gettext("you are not allowed to change %s"), $file);
+ next;
+ }
+
+ if ($detail->{'mode_from'} ne $detail->{'mode_to'}) {
+ push @errors, gettext("you are not allowed to change file modes");
+ }
+
+ if ($detail->{'status'} =~ /^D+\d*/) {
+ # TODO check_canremove
+ }
+ elsif ($detail->{'status'} !~ /^[MA]+\d*$/) {
+ push @errors, "unknown status ".$detail->{'status'};
+ }
+ else {
+ # TODO check_canedit
+ # TODO check_canattach
+ }
+ }
+ }
+ }
+
+ if (@errors) {
+ # TODO clean up objects from failed push
+
+ print STDERR "$_\n" foreach @errors;
+ exit 1;
+ }
+ else {
+ exit 0;
+ }
+} #}}}
+
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