doc webdav: Implement locking support

This replaces the pseydo-locking of python-webdav library with a real
db-based locking. Locks are stored as DAV properties, which will
effectively also be listed in the PROPFIND response of the nodes.

With locking in place, Office suites can collaborate on documents online.

bzr revid: p_christ@hol.gr-20101207134041-8negkvxrbscv7fs7

1 files changed, 33 insertions, 0 deletions

diff --git a/addons/document_webdav/webdav.py b/addons/document_webdav/webdav.py
index 302d8c2a8a7..dd19aeef7d5 100644
--- a/addons/document_webdav/webdav.py
+++ b/addons/document_webdav/webdav.py
@@ -268,6 +268,39 @@ def mk_propname_response(self,uri,propnames,doc):
 PROPFIND.mk_prop_response = mk_prop_response
 PROPFIND.mk_propname_response = mk_propname_response
 
+def mk_lock_response(self, uri, props):
+    """ Prepare the data response to a DAV LOCK command
+    
+    This function is here, merely to be in the same file as the
+    ones above, that have similar code.
+    """
+    doc = domimpl.createDocument('DAV:', "D:prop", None)
+    ms = doc.documentElement
+    ms.setAttribute("xmlns:D", "DAV:")
+    # ms.tagName = 'D:multistatus'
+    namespaces = []
+    nsnum = 0
+    propgen = Prop2xml(doc, namespaces, nsnum)
+    # write href information
+    uparts=urlparse.urlparse(uri)
+    fileloc=uparts[2]
+    if isinstance(fileloc, unicode):
+        fileloc = fileloc.encode('utf-8')
+    davpath = self.parent.get_davpath()
+    if uparts[0] and uparts[1]:
+        hurl = '%s://%s%s%s' % (uparts[0], uparts[1], davpath, urllib.quote(fileloc))
+    else:
+        # When the request has been relative, we don't have enough data to
+        # reply with absolute url here.
+        hurl = '%s%s' % (davpath, urllib.quote(fileloc))
+        
+    props.append( ('lockroot', 'DAV:', ('href', 'DAV:', (hurl))))
+    pld = doc.createElement('D:lockdiscovery')
+    ms.appendChild(pld)
+    propgen._prop_child(pld, 'DAV:', 'activelock', props)
+
+    return doc.toxml(encoding="utf-8")
+
 super_create_prop = REPORT.create_prop
 
 def create_prop(self):