web: server: Handle files without extension.

* tissue/web/server.scm (mime-type-for-extension): Handle files
without extension.
* tests/web/server.scm: New file.

2 files changed, 31 insertions, 1 deletions

diff --git a/tests/web/server.scm b/tests/web/server.scm
new file mode 100644
index 0000000..25537ab
--- /dev/null
+++ b/tests/web/server.scm
@@ -0,0 +1,28 @@
+;;; tissue --- Text based issue tracker
+;;; Copyright © 2023 Arun Isaac <arunisaac@systemreboot.net>
+;;;
+;;; This file is part of tissue.
+;;;
+;;; tissue is free software: you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; tissue is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;;; General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with tissue.  If not, see <https://www.gnu.org/licenses/>.
+
+(import (srfi srfi-64)
+        (tissue web server))
+
+(test-begin "web-server")
+
+(test-equal "MIME type of file without extension should be application/octet-stream"
+  '(application/octet-stream)
+  (mime-type-for-extension ""))
+
+(test-end "web-server")
diff --git a/tissue/web/server.scm b/tissue/web/server.scm
index db89bae..e8ee9eb 100644
--- a/tissue/web/server.scm
+++ b/tissue/web/server.scm
@@ -72,7 +72,9 @@
 
 (define (mime-type-for-extension extension)
   "Return the mime type for @var{extension}."
-  (or (assoc-ref %mime-types (string-remove-prefix "." extension))
+  (or (assoc-ref %mime-types (if (string-null? extension)
+                                 extension
+                                 (string-remove-prefix "." extension)))
       '(application/octet-stream)))
 
 (define (404-response request)