po: fix redirect after edit, using a somehow tricky hack

[git.ikiwiki.info.git] / IkiWiki / CGI.pm

diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index a3486cbb40034cafc2fcdedd32c828626261339d..81cb42d1309fd537ef7a7e7da799ca95ff7a50ee 100644 (file)
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -9,7 +9,7 @@ use IkiWiki::UserInfo;
 use open qw{:utf8 :std};
 use Encode;
 
-sub printheader ($) { #{{{
+sub printheader ($) {
        my $session=shift;
        
        if ($config{sslcookie}) {
@@ -19,9 +19,9 @@ sub printheader ($) { #{{{
                print $session->header(-charset => 'utf-8',
                        -cookie => $session->cookie(-httponly => 1));
        }
-} #}}}
+}
 
-sub showform ($$$$;@) { #{{{
+sub showform ($$$$;@) {
        my $form=shift;
        my $buttons=shift;
        my $session=shift;
@@ -38,7 +38,7 @@ sub showform ($$$$;@) { #{{{
        print misctemplate($form->title, $form->render(submit => $buttons), @_);
 }
 
-sub redirect ($$) { #{{{
+sub redirect ($$) {
        my $q=shift;
        my $url=shift;
        if (! $config{w3mmode}) {
@@ -48,9 +48,9 @@ sub redirect ($$) { #{{{
                print "Content-type: text/plain\n";
                print "W3m-control: GOTO $url\n\n";
        }
-} #}}}
+}
 
-sub decode_cgi_utf8 ($) { #{{{
+sub decode_cgi_utf8 ($) {
        # decode_form_utf8 method is needed for 5.10
        if ($] < 5.01) {
                my $cgi = shift;
@@ -58,9 +58,9 @@ sub decode_cgi_utf8 ($) { #{{{
                        $cgi->param($f, map { decode_utf8 $_ } $cgi->param($f));
                }
        }
-} #}}}
+}
 
-sub decode_form_utf8 ($) { #{{{
+sub decode_form_utf8 ($) {
        if ($] >= 5.01) {
                my $form = shift;
                foreach my $f ($form->field) {
@@ -70,11 +70,11 @@ sub decode_form_utf8 ($) { #{{{
                        );
                }
        }
-} #}}}
+}
 
 # Check if the user is signed in. If not, redirect to the signin form and
 # save their place to return to later.
-sub needsignin ($$) { #{{{
+sub needsignin ($$) {
        my $q=shift;
        my $session=shift;
 
@@ -85,9 +85,9 @@ sub needsignin ($$) { #{{{
                cgi_savesession($session);
                exit;
        }
-} #}}} 
+}
 
-sub cgi_signin ($$) { #{{{
+sub cgi_signin ($$) {
        my $q=shift;
        my $session=shift;
 
@@ -127,9 +127,9 @@ sub cgi_signin ($$) { #{{{
        }
 
        showform($form, $buttons, $session, $q);
-} #}}}
+}
 
-sub cgi_postsignin ($$) { #{{{
+sub cgi_postsignin ($$) {
        my $q=shift;
        my $session=shift;
        
@@ -144,9 +144,9 @@ sub cgi_postsignin ($$) { #{{{
        else {
                error(gettext("login failed, perhaps you need to turn on cookies?"));
        }
-} #}}}
+}
 
-sub cgi_prefs ($$) { #{{{
+sub cgi_prefs ($$) {
        my $q=shift;
        my $session=shift;
 
@@ -254,9 +254,9 @@ sub cgi_prefs ($$) { #{{{
        }
        
        showform($form, $buttons, $session, $q);
-} #}}}
+}
 
-sub check_banned ($$) { #{{{
+sub check_banned ($$) {
        my $q=shift;
        my $session=shift;
 
@@ -275,7 +275,7 @@ sub check_banned ($$) { #{{{
        }
 }
 
-sub cgi_getsession ($) { #{{{
+sub cgi_getsession ($) {
        my $q=shift;
 
        eval q{use CGI::Session; use HTML::Entities};
@@ -294,32 +294,34 @@ sub cgi_getsession ($) { #{{{
        umask($oldmask);
 
        return $session;
-} #}}}
+}
 
-# The session id is stored on the form and checked to
-# guard against CSRF. But only if the user is logged in,
-# as anonok can allow anonymous edits.
-sub checksessionexpiry ($$) { # {{{
+# To guard against CSRF, the user's session id (sid)
+# can be stored on a form. This function will check
+# (for logged in users) that the sid on the form matches
+# the session id in the cookie.
+sub checksessionexpiry ($$) {
+       my $q=shift;
        my $session = shift;
-       my $sid = shift;
 
        if (defined $session->param("name")) {
+               my $sid=$q->param('sid');
                if (! defined $sid || $sid ne $session->id) {
                        error(gettext("Your login session has expired."));
                }
        }
-} # }}}
+}
 
-sub cgi_savesession ($) { #{{{
+sub cgi_savesession ($) {
        my $session=shift;
 
        # Force session flush with safe umask.
        my $oldmask=umask(077);
        $session->flush;
        umask($oldmask);
-} #}}}
+}
 
-sub cgi (;$$) { #{{{
+sub cgi (;$$) {
        my $q=shift;
        my $session=shift;
 
@@ -389,16 +391,16 @@ sub cgi (;$$) { #{{{
        else {
                error("unknown do parameter");
        }
-} #}}}
+}
 
 # Does not need to be called directly; all errors will go through here.
-sub cgierror ($) { #{{{
+sub cgierror ($) {
        my $message=shift;
 
        print "Content-type: text/html\n\n";
        print misctemplate(gettext("Error"),
                "<p class=\"error\">".gettext("Error").": $message</p>");
        die $@;
-} #}}}
+}
 
 1