Slash after /about

[john at keeping.me.uk (John Keeping)]

On Tue, Jan 29, 2019 at 09:21:01AM +0000, dilyan.palauzov at aegee.org wrote:
> For CGI I use thttpd and it tends to remove terminating slashes in the requests.
> 
> cgit wants to have slash after about/ .
> 
> So they do not work together, endless loop happens.  Proposed fix:
> 
> diff --git a/cmd.c b/cmd.c
> --- a/cmd.c
> +++ b/cmd.c
> @@ -40,16 +40,7 @@ static void atom_fn(void)
>  static void about_fn(void)
>  {
>         if (ctx.repo) {
> -               size_t path_info_len = ctx.env.path_info ? strlen(ctx.env.path_info) : 0;
> -               if (!ctx.qry.path &&
> -                   ctx.qry.url[strlen(ctx.qry.url) - 1] != '/' &&
> -                   (!path_info_len || ctx.env.path_info[path_info_len - 1] != '/')) {
> -                       char *currenturl = cgit_currenturl();
> -                       char *redirect = fmtalloc("%s/", currenturl);
> -                       cgit_redirect(redirect, true);
> -                       free(currenturl);
> -                       free(redirect);
> -               } else if (ctx.repo->readme.nr)
> +               if (ctx.repo->readme.nr)
>                         cgit_print_repo_readme(ctx.qry.path);
>                 else if (ctx.repo->homepage)
>                         cgit_redirect(ctx.repo->homepage, false);

According to commit d703480 ("about: always ensure page has a trailing
slash") the trailing slash is required for easy embedding of links to
other /about/ pages.

I suspect it's possible to append the trailing slash without going round
a redirect loop, but I don't think this patch will work.

(I'm also inclined to agree that thttpd is broken here and should pass
the URL to CGI scripts as it is received.)