url: make the updated credentials URL-encoded in the URL

Found-by: Gregory Jefferis
Reported-by: Jeroen Ooms
Added test 1168 to verify. Bug spotted when doing a redirect.
Bug: https://github.com/jeroen/curl/issues/224
Closes #5400

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/url.c b/lib/url.c
index f250f2ff2..9b8b2bdde 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -2788,12 +2788,14 @@ static CURLcode override_login(struct Curl_easy *data,
 
   /* for updated strings, we update them in the URL */
   if(user_changed) {
-    uc = curl_url_set(data->state.uh, CURLUPART_USER, *userp, 0);
+    uc = curl_url_set(data->state.uh, CURLUPART_USER, *userp,
+                      CURLU_URLENCODE);
     if(uc)
       return Curl_uc_to_curlcode(uc);
   }
   if(passwd_changed) {
-    uc = curl_url_set(data->state.uh, CURLUPART_PASSWORD, *passwdp, 0);
+    uc = curl_url_set(data->state.uh, CURLUPART_PASSWORD, *passwdp,
+                      CURLU_URLENCODE);
     if(uc)
       return Curl_uc_to_curlcode(uc);
   }