path: root/IkiWiki/Receive.pm

#!/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 genwrapper () {
    # Test for commits from untrusted committers in the wrapper, to
    # avoid starting ikiwiki proper 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;

    # 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");
    }

    IkiWiki::check_canchange(
        cgi => $cgi,
        session => $session,
        changes => [IkiWiki::rcs_receive()]
    );
    exit 0;
}

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