require 'common/agendav_plugin'
require 'mv/mv_plugin'
+
+# Handle moving (renaming) Agendav users in its database. Agendav has
+# no concept of domains.
+#
class AgendavMv
include AgendavPlugin
include MvPlugin
+ # Move the user *src* to *dst* within the Agendav database. This
+ # should "rename" him in _every_ table where he is referenced.
+ #
+ # This can fail is *src* does not exist, or if *dst* already exists
+ # before the move. It should also be an error if the destination
+ # domain doesn't exist. But Agendav doesn't know about domains, so
+ # we let that slide.
+ #
+ # @param src [User] the source user to be moved.
+ #
+ # @param dst [User] the destination user being moved to.
+ #
def mv_user(src, dst)
- # It's obviously an error if the source user does not exist. It
- # would also be an error if the destination domain didn't exist;
- # however, Agendav doesn't know about domains, so we let that slide.
raise NonexistentUserError.new(src.to_s()) if not user_exists(src)
-
- # And it's an error if the destination user exists already.
raise UserAlreadyExistsError.new(dst.to_s()) if user_exists(dst)
- sql_queries = ['UPDATE prefs SET username = $1 WHERE username = $2;']
- sql_queries << 'UPDATE shared SET user_from = $1 WHERE user_from = $2;'
- sql_queries << 'UPDATE shared SET user_which = $1 WHERE user_which = $2;'
-
- connection = PGconn.connect(@db_host, @db_port, @db_opts, @db_tty,
- @db_name, @db_user, @db_pass)
-
- sql_queries.each do |sql_query|
+ connection = PG::Connection.new(@db_hash)
+ begin
+ # The "prefs" table uses the normal username as a key...
+ sql_query = 'UPDATE prefs SET username = $1 WHERE username = $2;'
connection.query(sql_query, [dst.to_s(), src.to_s()])
- end
- connection.close()
+ # But the "shares" table uses encoded principal URLs. For the
+ # "shares" table, we need to do a find/replace on the username
+ # with its "@" symbol translated to a "%40".
+ encoded_src = src.to_s()['@'] = '%40'
+ encoded_dst = dst.to_s()['@'] = '%40'
+
+ # Unlike in the "rm" plugin, we do modify the "calendar" field
+ # here. That's because in the usual legitimate use case, the
+ # calendar URL will change when a user moves. This will ALSO
+ # affect people who name their calendars something like
+ # "user%40example.com", but screw those people.
+ sql_queries << 'UPDATE shares SET owner=REPLACE(owner, $2, $1);'
+ sql_queries << 'UPDATE shares SET calendar=REPLACE(calendar, $2, $1);'
+ sql_queries << 'UPDATE shares SET with=REPLACE(with, $2, $1);'
+
+ sql_queries.each do |sql_query|
+ connection.query(sql_query, [encoded_dst, encoded_src])
+ end
+ ensure
+ # Make sure the connection gets closed even if a query explodes.
+ connection.close()
+ end
end
end