CGI: add cgi_page_from_404(), which remaps a path like $REDIRECT_URL to an IkiWiki page name

Also add a regression test

1 files changed, 43 insertions, 0 deletions

diff --git a/t/cgi_page_from_404.t b/t/cgi_page_from_404.t
new file mode 100755
index 000000000..adbbdf874
--- /dev/null
+++ b/t/cgi_page_from_404.t
@@ -0,0 +1,43 @@
+#!/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');