[libsoup] Add "Content-Length: 0" to requests with a Content-Type but no body

[Dan Winship <danw src gnome org>]

commit 74e7c3b0d2201058060233ce2d99860a1c43c646
Author: Dan Winship <danw gnome org>
Date:   Sat Jun 6 23:14:05 2009 -0400

    Add "Content-Length: 0" to requests with a Content-Type but no body
    
    Some servers get annoyed if a POST/PUT declares a Content-Type but
    contains no body, so make sure to send a 0-length body (which is
    different) instead.
---
 libsoup/soup-message-client-io.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libsoup/soup-message-client-io.c b/libsoup/soup-message-client-io.c
index ebf144c..8159922 100644
--- a/libsoup/soup-message-client-io.c
+++ b/libsoup/soup-message-client-io.c
@@ -109,7 +109,8 @@ get_request_headers (SoupMessage *req, GString *header,
 	*encoding = soup_message_headers_get_encoding (req->request_headers);
 	if ((*encoding == SOUP_ENCODING_CONTENT_LENGTH ||
 	     *encoding == SOUP_ENCODING_NONE) &&
-	    req->request_body->length > 0 &&
+	    (req->request_body->length > 0 ||
+	     soup_message_headers_get_one (req->request_headers, "Content-Type")) &&
 	    !soup_message_headers_get_content_length (req->request_headers)) {
 		*encoding = SOUP_ENCODING_CONTENT_LENGTH;
 		soup_message_headers_set_content_length (req->request_headers,