added support for HTTP (Basic) authentication

[helm.git] / helm / DEVEL / ocaml-http / http_request.ml

diff --git a/helm/DEVEL/ocaml-http/http_request.ml b/helm/DEVEL/ocaml-http/http_request.ml
index 65cba9710d95a00e29fd5f4cea335c441c3f89d6..354546ea2f11b269b6806d3db58955967ab72199 100644 (file)
--- a/helm/DEVEL/ocaml-http/http_request.ml
+++ b/helm/DEVEL/ocaml-http/http_request.ml
@@ -31,6 +31,9 @@ let debug_dump_request path params =
       (String.concat ";"
         (List.map (fun (h,v) -> String.concat "=" [h;v]) params)))
 
+let auth_sep_RE = Pcre.regexp ":"
+let basic_auth_RE = Pcre.regexp "^Basic\\s+"
+
 exception Fallback;;  (* used internally by request class *)
 
 class request ic =
@@ -124,5 +127,17 @@ class request ic =
           sprintf "%s %s %s" method_string self#uri (string_of_version version)
       | None -> sprintf "%s %s" method_string self#uri
 
+    method authorization: auth_info option =
+      try
+        let credentials =
+          Netencoding.Base64.decode
+            (Pcre.replace ~rex:basic_auth_RE (self#header "authorization"))
+        in
+        debug_print ("HTTP Basic auth credentials: " ^ credentials);
+        (match Pcre.split ~rex:auth_sep_RE credentials with
+        | [username; password] -> Some (`Basic (username, password))
+        | l -> raise Exit)
+      with Header_not_found _ | Invalid_argument _ | Exit -> None
+
   end