Add the roundcube_db plugin.

diff --git a/src/plugins/roundcube_db.rb b/src/plugins/roundcube_db.rb
new file mode 100644 (file)
index 0000000..94fe14a
--- /dev/null
+++ b/src/plugins/roundcube_db.rb
@@ -0,0 +1,147 @@
+require 'pg'
+
+class RoundcubeDb
+
+  include Plugin
+
+  def initialize()
+    @db_host = Configuration::ROUNDCUBE_DBHOST
+    @db_port = Configuration::ROUNDCUBE_DBPORT
+    @db_opts = Configuration::ROUNDCUBE_DBOPTS
+    @db_tty  = Configuration::ROUNDCUBE_DBTTY
+    @db_name = Configuration::ROUNDCUBE_DBNAME
+    @db_user = Configuration::ROUNDCUBE_DBUSER
+    @db_pass = Configuration::ROUNDCUBE_DBPASS
+  end
+
+
+  def describe_domain(domain)
+    # Roundcube doesn't have a concept of domains.
+    return 'N/A'
+  end
+
+  def describe_account(account)
+    user_id = self.get_user_id(account)
+
+    if user_id.nil?
+      return 'User not found'
+    else
+      return "User ID: #{user_id}"
+    end
+  end
+
+  def delete_domain(domain)
+    # Roundcube doesn't have a concept of domains.
+  end
+
+  def delete_account(account)
+    # Delete the given username and any records in other tables
+    # belonging to it.
+    user_id = self.get_user_id(account)
+
+    sql_queries = ['DELETE FROM cache WHERE user_id = $1::int;']
+    sql_queries << 'DELETE FROM contactgroupmembers WHERE contactgroup_id IN (SELECT contactgroup_id FROM contactgroups WHERE user_id = $1::int);'
+    sql_queries << 'DELETE FROM contactgroups WHERE user_id = $1::int;'
+    sql_queries << 'DELETE FROM contacts WHERE user_id = $1::int;'
+    sql_queries << 'DELETE FROM identities WHERE user_id = $1::int;'
+    sql_queries << 'DELETE FROM messages WHERE user_id = $1::int;'
+    sql_queries << 'DELETE FROM users WHERE user_id = $1::int;'
+
+    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, [user_id])
+      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)
+    # Roundcube doesn't have a concept of domains.
+    return []
+  end
+
+
+  def get_leftover_accounts(db_accounts)
+    # Given a list of all users who have logged in to Roundcube.
+    rc_accounts = self.get_roundcube_usernames()
+    return rc_accounts - db_accounts
+  end
+
+
+  protected;
+
+  def get_user_id(account)
+    user_id = nil
+
+    begin
+      connection = PGconn.connect(@db_host,
+                                  @db_port,
+                                  @db_opts,
+                                  @db_tty,
+                                  @db_name,
+                                  @db_user,
+                                  @db_pass)
+
+      sql_query = "SELECT user_id FROM users WHERE username = $1;"
+
+      connection.query(sql_query, [account]) do |result|
+        if result.num_tuples > 0
+          user_id = result[0]['user_id']
+        end
+      end
+
+      connection.close()
+
+    rescue PGError => e
+      # Pretend like we're database-agnostic in case we ever are.
+      raise DatabaseError.new(e)
+    end
+
+    return user_id
+  end
+
+
+
+  def get_roundcube_usernames()
+    usernames = []
+
+    # Just assume PostgreSQL for now.
+    begin
+      connection = PGconn.connect(@db_host,
+                                  @db_port,
+                                  @db_opts,
+                                  @db_tty,
+                                  @db_name,
+                                  @db_user,
+                                  @db_pass)
+
+      sql_query = "SELECT username FROM users;"
+      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