4bf65834da5de2d071c664fee9d00bc826b6da15
[mailshears.git] / lib / mv / plugins / agendav.rb
1 require 'pg'
2
3 require 'common/agendav_plugin'
4 require 'mv/mv_plugin'
5
6
7 # Handle moving (renaming) Agendav users in its database. Agendav has
8 # no concept of domains.
9 #
10 class AgendavMv
11
12 include AgendavPlugin
13 include MvPlugin
14
15 # Move the user *src* to *dst* within the Agendav database. This
16 # should "rename" him in _every_ table where he is referenced.
17 #
18 # This can fail is *src* does not exist, or if *dst* already exists
19 # before the move. It should also be an error if the destination
20 # domain doesn't exist. But Agendav doesn't know about domains, so
21 # we let that slide.
22 #
23 # @param src [User] the source user to be moved.
24 #
25 # @param dst [User] the destination user being moved to.
26 #
27 def mv_user(src, dst)
28 raise NonexistentUserError.new(src.to_s()) if not user_exists(src)
29 raise UserAlreadyExistsError.new(dst.to_s()) if user_exists(dst)
30
31 connection = PG::Connection.new(@db_hash)
32 begin
33 # The "prefs" table uses the normal username as a key...
34 sql_query = 'UPDATE prefs SET username = $1 WHERE username = $2;'
35 connection.query(sql_query, [dst.to_s(), src.to_s()])
36
37 # But the "shares" table uses encoded principal URLs. For the
38 # "shares" table, we need to do a find/replace on the username
39 # with its "@" symbol translated to a "%40".
40 encoded_src = src.to_s()['@'] = '%40'
41 encoded_dst = dst.to_s()['@'] = '%40'
42
43 # Unlike in the "rm" plugin, we do modify the "calendar" field
44 # here. That's because in the usual legitimate use case, the
45 # calendar URL will change when a user moves. This will ALSO
46 # affect people who name their calendars something like
47 # "user%40example.com", but screw those people.
48 sql_queries << 'UPDATE shares SET owner=REPLACE(owner, $2, $1);'
49 sql_queries << 'UPDATE shares SET calendar=REPLACE(calendar, $2, $1);'
50 sql_queries << 'UPDATE shares SET with=REPLACE(with, $2, $1);'
51
52 sql_queries.each do |sql_query|
53 connection.query(sql_query, [encoded_dst, encoded_src])
54 end
55 ensure
56 # Make sure the connection gets closed even if a query explodes.
57 connection.close()
58 end
59 end
60
61 end