[PATCH] use lock token in non-URI form in start_put

[Tay Ray Chuan <rctay89@gmail.com>]

After 753bc91 ("Remove the requirement opaquelocktoken uri scheme"),
lock tokens are in the URI forms in which they are received from the
server, eg. 'opaquelocktoken:', 'uuid:'

However, "start_put" (and consequently "start_move"), which attempts to
create a unique temporary file using the UUID of the lock token,
inadvertently uses the lock token in its URI form. These file
operations on the server may not be successful (specifically, in
Windows), due to the colon ':' character from the URI form of the lock
token in the file path.

This patch ensures that the lock token sans the URI scheme is used
instead in "start_put".

To do this, the "start_put" gets the position of ':', which is used to
separate the URI scheme from the part, eg. "<scheme>:". In addition,
start_put uses the last position of ':', since URIs with component
URIs are possible, eg. "urn:uuid:" One can be sure that the lock token
will always contain the UUID and be in URI form, due to RFC 2518, or
its successor RFC 4918 (see
http://www.webdav.org/specs/rfc4918.html#ELEMENT_locktoken).

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
---
 http-push.c          |    2 +-
 t/t5540-http-push.sh |    7 +++++++
 2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/http-push.c b/http-push.c
index eefd64c..bd8f372 100644
--- a/http-push.c
+++ b/http-push.c
@@ -558,7 +558,7 @@ static void start_put(struct transfer_request *request)

 	append_remote_object_url(&buf, remote->url, hex, 0);
 	strbuf_addstr(&buf, "_");
-	strbuf_addstr(&buf, request->lock->token);
+	strbuf_addstr(&buf, strrchr(request->lock->token, ':') + 1);
 	request->url = strbuf_detach(&buf, NULL);

 	slot = get_active_slot();
diff --git a/t/t5540-http-push.sh b/t/t5540-http-push.sh
index c236b5e..268b2d4 100755
--- a/t/t5540-http-push.sh
+++ b/t/t5540-http-push.sh
@@ -94,6 +94,13 @@ test_expect_success 'MKCOL sends directory names with trailing slashes' '

 '

+test_expect_success 'PUT and MOVE sends object to URLs in non-URI form' '
+
+	grep -P "\"(?:PUT|MOVE) .+objects/[\da-z]{2}/[\da-z]{38}_[\da-z\-]{36} HTTP/[0-9.]+\" 20\d" \
+	< "$HTTPD_ROOT_PATH"/access.log
+
+'
+
 stop_httpd

 test_done
-- 
1.6.1.2.278.g9a9e.dirty