exit;
}
+sub cgi_page_from_404 ($$$) {
+ my $path = shift;
+ my $baseurl = shift;
+ my $usedirs = shift;
+
+ # fail if missing from environment or whatever
+ return undef unless defined $path;
+ return undef unless defined $baseurl;
+
+ # with usedirs on, path is like /~fred/foo/bar/ or /~fred/foo/bar or
+ # /~fred/foo/bar/index.html
+ # with usedirs off, path is like /~fred/foo/bar.html
+ # baseurl is like 'http://people.example.com/~fred'
+
+ # convert baseurl to ~fred
+ unless ($baseurl =~ s{^https?://[^/]+/?}{}) {
+ return undef;
+ }
+
+ # convert path to /~fred/foo/bar
+ if ($usedirs) {
+ $path =~ s/\/*(?:index\.$config{htmlext})?$//;
+ }
+ else {
+ $path =~ s/\.$config{htmlext}$//;
+ }
+
+ # remove /~fred/
+ unless ($path =~ s{^/*\Q$baseurl\E/*}{}) {
+ return undef;
+ }
+
+ # special case for the index
+ unless ($path) {
+ return 'index';
+ }
+
+ return $path;
+}
+
sub cgi (;$$) {
my $q=shift;
my $session=shift;
--- /dev/null
+#!/usr/bin/perl
+use warnings;
+use strict;
+use Test::More tests => 18;
+
+BEGIN { use_ok("IkiWiki"); }
+BEGIN { use_ok("IkiWiki::CGI"); }
+
+sub cgi_page_from_404 { return IkiWiki::cgi_page_from_404(shift, shift, shift); }
+
+$IkiWiki::config{htmlext} = 'html';
+
+is(cgi_page_from_404('/', 'http://example.com', 1), 'index');
+is(cgi_page_from_404('/index.html', 'http://example.com', 0), 'index');
+is(cgi_page_from_404('/', 'http://example.com/', 1), 'index');
+is(cgi_page_from_404('/index.html', 'http://example.com/', 0), 'index');
+
+is(cgi_page_from_404('/~user/foo/bar', 'http://example.com/~user', 1),
+ 'foo/bar');
+is(cgi_page_from_404('/~user/foo/bar/index.html', 'http://example.com/~user', 1),
+ 'foo/bar');
+is(cgi_page_from_404('/~user/foo/bar/', 'http://example.com/~user', 1),
+ 'foo/bar');
+is(cgi_page_from_404('/~user/foo/bar.html', 'http://example.com/~user', 0),
+ 'foo/bar');
+
+is(cgi_page_from_404('/~user/foo/bar', 'http://example.com/~user/', 1),
+ 'foo/bar');
+is(cgi_page_from_404('/~user/foo/bar/index.html', 'http://example.com/~user/', 1),
+ 'foo/bar');
+is(cgi_page_from_404('/~user/foo/bar/', 'http://example.com/~user/', 1),
+ 'foo/bar');
+is(cgi_page_from_404('/~user/foo/bar.html', 'http://example.com/~user/', 0),
+ 'foo/bar');
+
+is(cgi_page_from_404('/~user/foo', 'https://example.com/~user', 1),
+ 'foo');
+is(cgi_page_from_404('/~user/foo/index.html', 'https://example.com/~user', 1),
+ 'foo');
+is(cgi_page_from_404('/~user/foo/', 'https://example.com/~user', 1),
+ 'foo');
+is(cgi_page_from_404('/~user/foo.html', 'https://example.com/~user', 0),
+ 'foo');