From 29eda80f9669f5469f4cbe06269ad7a0da844495 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 25 Jul 2000 21:16:32 +0000
Subject: uses auth_host to only send user+password to that particular site,
 usable if Location: following takes "us" to other servers that should not get
 the user and password

---
 lib/http.c | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/lib/http.c b/lib/http.c
index c3fb857d8..9372e488e 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -176,8 +176,24 @@ CURLcode http_connect(struct connectdata *conn)
      }
   }
 
+   if(data->bits.user_passwd && !data->bits.this_is_a_follow) {
+     /* Authorization: is requested, this is not a followed location, get the
+        original host name */
+     data->auth_host = strdup(data->hostname);
+   }
+
    return CURLE_OK;
 }
+
+/* called from curl_close() when this struct is about to get wasted, free
+   protocol-specific resources */
+CURLcode http_close(struct connectdata *conn)
+{
+  if(conn->data->auth_host)
+    free(conn->data->auth_host);
+  return CURLE_OK;
+}
+
 CURLcode http_done(struct connectdata *conn)
 {
   struct UrlData *data;
@@ -238,10 +254,17 @@ CURLcode http(struct connectdata *conn)
 
   if((data->bits.user_passwd) && !checkheaders(data, "Authorization:")) {
     char authorization[512];
-    sprintf(data->buffer, "%s:%s", data->user, data->passwd);
-    base64Encode(data->buffer, authorization);
-    data->ptr_userpwd = maprintf( "Authorization: Basic %s\015\012",
-                                  authorization);
+
+    /* To prevent the user+password to get sent to other than the original
+       host due to a location-follow, we do some weirdo checks here */
+    if(!data->bits.this_is_a_follow ||
+       !data->auth_host ||
+       strequal(data->auth_host, data->hostname)) {
+      sprintf(data->buffer, "%s:%s", data->user, data->passwd);
+      base64Encode(data->buffer, authorization);
+      data->ptr_userpwd = maprintf( "Authorization: Basic %s\015\012",
+                                    authorization);
+    }
   }
   if((data->bits.set_range) && !checkheaders(data, "Range:")) {
     data->ptr_rangeline = maprintf("Range: bytes=%s\015\012", data->range);
-- 
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