require 'pg'
-require 'common/plugin'
+require 'common/davical_plugin'
require 'rm/rm_plugin'
+# Handle the removal of DAViCal users from its database. DAViCal has
+# no concept of domains.
+#
class DavicalRm
- #
- # DAViCal only supports Postgres, so even if we ever are
- # database-agnostic, this plugin can't be.
- #
- include Plugin
- include RmPlugin
-
- def initialize()
- cfg = Configuration.new()
- @db_host = cfg.davical_dbhost
- @db_port = cfg.davical_dbport
- @db_opts = cfg.davical_dbopts
- @db_tty = cfg.davical_dbtty
- @db_name = cfg.davical_dbname
- @db_user = cfg.davical_dbuser
- @db_pass = cfg.davical_dbpass
- end
-
-
- def describe_domain(domain)
- # DAViCal doesn't have a concept of domains.
- return 'N/A'
- end
-
-
- def describe_account(account)
- principal_id = self.get_principal_id(account)
-
- if principal_id.nil?
- return 'User not found'
- else
- return "Principal ID: #{principal_id}"
- end
- end
-
-
- def delete_domain(domain)
- # DAViCal doesn't have a concept of domains.
- end
-
-
- def delete_account(account)
- # Delete the given username. DAViCal uses foreign keys properly
- # and only supports postgres, so we let the ON DELETE CASCADE
- # trigger handle most of the work.
- sql_queries = ['DELETE FROM usr WHERE username = $1']
-
- begin
- connection = PGconn.connect(@db_host,
- @db_port,
- @db_opts,
- @db_tty,
- @db_name,
- @db_user,
- @db_pass)
-
- sql_queries.each do |sql_query|
- connection.query(sql_query, [account])
- end
-
- connection.close()
-
- rescue PGError => e
- # Pretend like we're database-agnostic in case we ever are.
- raise DatabaseError.new(e)
- end
- end
-
-
- def get_leftover_domains(db_domains)
- # AgenDAV doesn't have a concept of domains.
- return []
- end
-
-
- def get_leftover_accounts(db_accounts)
- # Get a list of all users who have logged in to DAViCal.
- davical_accounts = self.get_davical_usernames()
- return davical_accounts - db_accounts
- end
+ include DavicalPlugin
+ include RmPlugin
- protected;
+ # Remove *user* from the DAViCal database. This should remove him
+ # from _every_ table in which he is referenced. Fortunately, DAViCal
+ # uses foreign keys properly (and only supports postgres, where they
+ # work!), so we can let the ON DELETE CASCADE trigger handle most of
+ # the work.
+ #
+ # @param user [User] the user to remove.
+ #
+ def remove_user(user)
+ raise NonexistentUserError.new(user.to_s()) if not user_exists(user)
- def get_principal_id(account)
- principal_id = nil
+ sql_query = 'DELETE FROM usr WHERE username = $1;'
+ connection = PG::Connection.new(@db_hash)
begin
- connection = PGconn.connect(@db_host,
- @db_port,
- @db_opts,
- @db_tty,
- @db_name,
- @db_user,
- @db_pass)
-
- sql_query = "SELECT principal.principal_id "
- sql_query += "FROM (principal INNER JOIN usr "
- sql_query += " ON principal.user_no = usr.user_no) "
- sql_query += "WHERE usr.username = $1;"
-
- connection.query(sql_query, [account]) do |result|
- if result.num_tuples > 0
- principal_id = result[0]['principal_id']
- end
- end
-
+ connection.sync_exec_params(sql_query, [user.to_s()])
+ ensure
+ # Make sure the connection gets closed even if the query explodes.
connection.close()
-
- rescue PGError => e
- # Pretend like we're database-agnostic in case we ever are.
- raise DatabaseError.new(e)
end
-
- return principal_id
end
- def get_davical_usernames()
- usernames = []
-
- begin
- connection = PGconn.connect(@db_host,
- @db_port,
- @db_opts,
- @db_tty,
- @db_name,
- @db_user,
- @db_pass)
-
- # User #1 is the super-user, and not tied to an email address.
- sql_query = 'SELECT username FROM usr WHERE user_no > 1;'
-
- connection.query(sql_query) do |result|
- usernames = result.field_values('username')
- end
-
- connection.close()
- rescue PGError => e
- # Pretend like we're database-agnostic in case we ever are.
- raise DatabaseError.new(e)
- end
-
- return usernames
- end
-
end
projects / mailshears.git / blobdiff