Attempt two at hacking up caldav to kind of semi-work with SOGo.wip/fugly_propfind_sync

This is an ugly work around that makes an initial one time synchronization
happen, it is not an actually working fix.

Implementing a proper fix would require reading up on WebDAV and understanding
the protocol. That means reading at least section 7 of rfc479.

https://tools.ietf.org/html/rfc4791#section-7

All this code does is demonstrating that calcurse-caldav can do something
slightly useful with SOGo calendars if prepending the REPORT command with a
PROPFIND and feeding the output from the first command to the second.

1 files changed, 23 insertions, 1 deletions

diff --git a/contrib/caldav/calcurse-caldav.py b/contrib/caldav/calcurse-caldav.py
index 5c028bf..f40c12b 100755
--- a/contrib/caldav/calcurse-caldav.py
+++ b/contrib/caldav/calcurse-caldav.py
@@ -135,6 +135,27 @@ def remote_query(conn, cmd, path, additional_headers, body):
 
     return (headers, body)
 
+def get_hrefs(conn):
+    body = ('<?xml version="1.0" encoding="utf-8" ?>'
+            '<D:propfind xmlns:D="DAV:"><D:prop><D:getetag/></D:prop></D:propfind>' )
+    headers, body = remote_query(conn, "PROPFIND", path, {}, body)
+
+    if not headers:
+        return {}
+
+    root = etree.fromstring(body)
+
+    hreflist = []
+    for node in root.findall(".//D:response", namespaces=nsmap):
+        hrefnode = node.find("./D:href", namespaces=nsmap)
+        if hrefnode is None:
+            die_atnode('Missing href.', node)
+        href = hrefnode.text
+
+        hreflist.append(href)
+
+    return hreflist
+
 
 def get_etags(conn, hrefs=[]):
     if len(hrefs) > 0:
@@ -525,9 +546,10 @@ try:
                 '  --init=keep-local  Remove all remote objects\n' +
                 '  --init=two-way     Copy local items to the server and vice versa')
 
+    hreflist = get_hrefs(conn)
     # Query the server and compute a lookup table that maps each path to its
     # current ETag.
-    etagdict = get_etags(conn)
+    etagdict = get_etags(conn, hreflist)
 
     # Compute object diffs.
     missing = set()