summaryrefslogtreecommitdiff
path: root/IkiWiki/Receive.pm
diff options
context:
space:
mode:
Diffstat (limited to 'IkiWiki/Receive.pm')
-rw-r--r--IkiWiki/Receive.pm135
1 files changed, 135 insertions, 0 deletions
diff --git a/IkiWiki/Receive.pm b/IkiWiki/Receive.pm
new file mode 100644
index 000000000..72668d26a
--- /dev/null
+++ b/IkiWiki/Receive.pm
@@ -0,0 +1,135 @@
+#!/usr/bin/perl
+
+package IkiWiki::Receive;
+
+use warnings;
+use strict;
+use IkiWiki;
+
+sub getuser () { #{{{
+ my $user=(getpwuid(exists $ENV{CALLER_UID} ? $ENV{CALLER_UID} : $<))[0];
+ if (! defined $user) {
+ error("cannot determine username for $<");
+ }
+ return $user;
+} #}}}
+
+sub trusted () { #{{{
+ my $user=getuser();
+ return ! ref $config{untrusted_committers} ||
+ ! grep { $_ eq $user } @{$config{untrusted_committers}};
+} #}}}
+
+sub gen_wrapper () { #{{{
+ # Test for commits from untrusted committers in the wrapper, to
+ # avoid loading ikiwiki at all for trusted commits.
+
+ my $ret=<<"EOF";
+ {
+ int u=getuid();
+EOF
+ $ret.="\t\tif ( ".
+ join("&&", map {
+ my $uid=getpwnam($_);
+ if (! defined $uid) {
+ error(sprintf(gettext("cannot determine id of untrusted committer %s"), $_));
+ }
+ "u != $uid";
+ } @{$config{untrusted_committers}}).
+ ") exit(0);\n";
+ $ret.=<<"EOF";
+ asprintf(&s, "CALLER_UID=%i", u);
+ newenviron[i++]=s;
+ }
+EOF
+ return $ret;
+} #}}}
+
+sub test () { #{{{
+ exit 0 if trusted();
+
+ IkiWiki::lockwiki();
+ IkiWiki::loadindex();
+
+ # Dummy up a cgi environment to use when calling check_canedit
+ # and friends.
+ eval q{use CGI};
+ error($@) if $@;
+ my $cgi=CGI->new;
+ $ENV{REMOTE_ADDR}='unknown' unless exists $ENV{REMOTE_ADDR};
+
+ # And dummy up a session object.
+ require IkiWiki::CGI;
+ my $session=IkiWiki::cgi_getsession($cgi);
+ $session->param("name", getuser());
+ # Make sure whatever user was authed is in the
+ # userinfo db.
+ require IkiWiki::UserInfo;
+ if (! IkiWiki::userinfo_get($session->param("name"), "regdate")) {
+ IkiWiki::userinfo_setall($session->param("name"), {
+ email => "",
+ password => "",
+ regdate => time,
+ }) || error("failed adding user");
+ }
+
+ my %newfiles;
+
+ foreach my $change (IkiWiki::rcs_receive()) {
+ # This untaint is safe because we check file_pruned and
+ # wiki_file_regexp.
+ my ($file)=$change->{file}=~/$config{wiki_file_regexp}/;
+ $file=IkiWiki::possibly_foolish_untaint($file);
+ if (! defined $file || ! length $file ||
+ IkiWiki::file_pruned($file, $config{srcdir})) {
+ error(gettext("bad file name %s"), $file);
+ }
+
+ my $type=pagetype($file);
+ my $page=pagename($file) if defined $type;
+
+ if ($change->{action} eq 'add') {
+ $newfiles{$file}=1;
+ }
+
+ if ($change->{action} eq 'change' ||
+ $change->{action} eq 'add') {
+ if (defined $page) {
+ if (IkiWiki->can("check_canedit")) {
+ IkiWiki::check_canedit($page, $cgi, $session);
+ next;
+ }
+ }
+ else {
+ if (IkiWiki::Plugin::attachment->can("check_canattach")) {
+ IkiWiki::Plugin::attachment::check_canattach($session, $file, $change->{path});
+ next;
+ }
+ }
+ }
+ elsif ($change->{action} eq 'remove') {
+ # check_canremove tests to see if the file is present
+ # on disk. This will fail is a single commit adds a
+ # file and then removes it again. Avoid the problem
+ # by not testing the removal in such pairs of changes.
+ # (The add is still tested, just to make sure that
+ # no data is added to the repo that a web edit
+ # could add.)
+ next if $newfiles{$file};
+
+ if (IkiWiki::Plugin::remove->can("check_canremove")) {
+ IkiWiki::Plugin::remove::check_canremove(defined $page ? $page : $file, $cgi, $session);
+ next;
+ }
+ }
+ else {
+ error "unknown action ".$change->{action};
+ }
+
+ error sprintf(gettext("you are not allowed to change %s"), $file);
+ }
+
+ exit 0;
+} #}}}
+
+1