[libsoup] session: update the host header in case of redirection

[Carlos Garcia Campos <carlosgc src gnome org>]

commit f1fec6526aa7638086f1d472b6a1877de69d90b1
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Thu Dec 10 11:01:02 2020 +0100

    session: update the host header in case of redirection

 libsoup/soup-session.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/libsoup/soup-session.c b/libsoup/soup-session.c
index ae564a89..874a254e 100644
--- a/libsoup/soup-session.c
+++ b/libsoup/soup-session.c
@@ -870,6 +870,7 @@ soup_session_redirect_message (SoupSession *session,
 {
        SoupSessionPrivate *priv;
        GUri *new_uri;
+       char *host;
        SoupMessageQueueItem *item;
        gboolean retval;
 
@@ -892,6 +893,18 @@ soup_session_redirect_message (SoupSession *session,
                                                   SOUP_ENCODING_NONE);
        }
 
+       host = soup_uri_get_host_for_headers (new_uri);
+       if (soup_uri_uses_default_port (new_uri))
+               soup_message_headers_replace (soup_message_get_request_headers (msg), "Host", host);
+       else {
+               char *value;
+
+               value = g_strdup_printf ("%s:%d", host, g_uri_get_port (new_uri));
+               soup_message_headers_replace (soup_message_get_request_headers (msg), "Host", value);
+               g_free (value);
+       }
+       g_free (host);
+
        soup_message_set_uri (msg, new_uri);
        g_uri_unref (new_uri);