-#!/usr/bin/ruby -wKU
+#!/usr/bin/ruby -wU
#
# mailshears, to prune unused mail directories.
#
-# Mail accounts for virtual hosts are stored in SQL, and managed by
-# Postfixadmin. However, the physical directories are handled by
-# Postfix/Dovecot and are left untouched by Postfixadmin. This is good
-# for security, but comes at a cost: Postfixadmin can't remove a
-# user's mail directory when his or her account is deleted.
-#
-# This program compares the list of filesystem accounts with the ones
-# in the database. It outputs any accounts that exist in the
-# filesystem, but not the database.
-#
-require 'mailshears'
+# Define a usage string using the program name.
+exe = File.basename($PROGRAM_NAME)
+usage = "#{exe} [prune | rm <target> | mv <src> <dst>]"
-cfg = Configuration.new()
-pgadb = PostfixadminDb.new(cfg.dbhost,
- cfg.dbport,
- cfg.dbopts,
- cfg.dbtty,
- cfg.dbname,
- cfg.dbuser,
- cfg.dbpass)
+# Defaults
+mode_name = 'prune'
+mode = :prune
+# Now, if a mode was supplied, it should be in ARGV[0].
+if ARGV.length() > 0
+ mode_names = ['prune', 'rm', 'mv']
+ if mode_names.include?(ARGV.first().downcase()) then
+ # Peel the mode name off the head of the list.
+ mode_name = ARGV.shift()
+ end
+end
-begin
- # Get a list of domains from the Postfixadmin database.
- db_domains = pgadb.get_domains_from_db()
-rescue DatabaseError => e
- puts "There was an error connecting to the database: #{e.to_s}"
- Kernel.exit(ExitCodes::DATABASE_ERROR)
+if mode_name == 'rm' then
+ mode = :rm
+elsif mode_name == 'mv' then
+ mode = :mv
end
-begin
- # And the accounts.
- db_accounts = pgadb.get_accounts_from_db()
-rescue DatabaseError => e
- puts "There was an error connecting to the database: #{e.to_s}"
- Kernel.exit(ExitCodes::DATABASE_ERROR)
+# Need this before referencing ExitCodes.
+require 'mailshears'
+
+# Since we removed both the executable name and the mode name (if it
+# existed) from ARGV, what remains should be the required arguments.
+# Figure out if we have the wrong number of arguments, and store the
+# associated error message in args_error_message if we do.
+args_error_message = nil
+if mode == :prune and ARGV.length() != 0 then
+ args_error_message = "ERROR: prune mode takes no additional arguments."
+elsif mode == :rm and ARGV.length() < 1 then
+ args_error_message = "ERROR: rm mode takes two or more user arguments."
+elsif mode == :mv and ARGV.length() != 2 then
+ args_error_message = "ERROR: mv mode takes exactly two user arguments."
end
+# If we got the wrong number of arguments, we'll have some error
+# message. Report it and quit.
+if not args_error_message.nil? then
+ STDERR.puts args_error_message
+ puts "Usage: #{usage}"
+ Kernel.exit(ExitCodes::BAD_COMMAND_LINE)
+end
-Plugin.includers.each do |plugin_class|
- plugin = plugin_class.new()
- begin
- leftover_domains = plugin.get_leftover_domains(db_domains)
- rescue StandardError => e
- puts "There was an error retrieving domains from the filesystem: #{e.to_s}"
- Kernel.exit(ExitCodes::FILESYSTEM_ERROR)
- end
+cfg = Configuration.new()
- begin
- leftover_accounts = plugin.get_leftover_accounts(db_accounts)
- rescue StandardError => e
- puts "There was an error retrieving accounts from the filesystem: #{e.to_s}"
- Kernel.exit(ExitCodes::FILESYSTEM_ERROR)
+# Load each of the plugins that we'll need.
+cfg.plugins.each do |plugin_file|
+ require "#{mode_name}/plugins/#{plugin_file}"
+end
+
+# And the runners.
+require "#{mode_name}/#{mode_name}_runner"
+require "#{mode_name}/#{mode_name}_dummy_runner"
+
+def make_header(plugin_name)
+ # The header that we output before the list of domains/users.
+ # Just the path of this script, the current time, and the plugin name.
+ exe = File.basename($PROGRAM_NAME)
+ header = "#{exe}, "
+
+ current_time = Time.now()
+ if current_time.respond_to?(:iso8601)
+ # Somehow this method is missing on some machines.
+ header += current_time.iso8601.to_s
+ else
+ # Fall back to whatever this looks like.
+ header += current_time.to_s
end
- if leftover_domains.size > 0 or leftover_accounts.size > 0
- # The header that we output before the list of domains/accounts.
- # Just the path of this script, the current time, and the plugin name.
- header = "#{$0}, "
-
- current_time = Time.now()
- if current_time.respond_to?(:iso8601)
- # Somehow this method is missing on some machines.
- header += current_time.iso8601.to_s
- else
- # Fall back to whatever this looks like.
- header += current_time.to_s
- end
+ header += ' (Plugin: ' + plugin_name + ")\n"
+ header += '-' * header.size # Underline the header.
- header += '(Plugin: ' + plugin_class.to_s + ")\n"
- puts header
- puts '-' * header.size # Underline the header.
+ return header
+end
- leftover_domains.each do |domain|
- puts "Found: #{domain} (#{plugin.describe_domain(domain)})"
- end
- leftover_accounts.each do |account|
- puts "Found: #{account} (#{plugin.describe_account(account)})"
- end
+plugin_module = nil
- if cfg.i_mean_business
- # We have to delete the accounts before the domain,
- # otherwise they'd already be gone.
- leftover_accounts.each do |account|
- # Get the description before we delete the domain.
- # This can still fail if the account's domain is gone.
- account_description = plugin.describe_account(account)
- plugin.delete_account(account)
- puts "Removed: #{account} (#{account_description})"
- end
-
- leftover_domains.each do |domain|
- # Get the description before we delete the domain.
- domain_description = plugin.describe_domain(domain)
- plugin.delete_domain(domain)
- puts "Removed: #{domain} (#{domain_description})"
- end
- end
+if mode == :rm then
+ plugin_module = RmPlugin
+elsif mode == :mv then
+ plugin_module = MvPlugin
+else
+ # Safe, catch-all default
+ plugin_module = PrunePlugin
+end
+
+# Buffer the output so that we can avoid printing the informational
+# header when no plugins produce output.
+require 'stringio'
+output_buffer = StringIO.new()
+$stdout = output_buffer
- puts ""
+# Parse the remaining arguments as User/Domain objects. If we get some
+# other argument that isn't one of those, it's an error.
+parsed_args = []
+ARGV.each do |arg|
+ begin
+ u = User.new(arg)
+ parsed_args << u
+ rescue InvalidUserError
+ begin
+ d = Domain.new(arg)
+ parsed_args << d
+ rescue InvalidDomainError
+ STDERR.puts "ERROR: invalid user/domain argument #{arg}"
+ Kernel.exit(ExitCodes::BAD_COMMAND_LINE)
+ end
end
+end
+begin
+ plugin_module.run(cfg, *parsed_args)
+ensure
+ # Now restore stdout, and print the header plus whatever the plugins
+ # produced if they produced anything. If they didn't produce any
+ # output, then we avoid printing the header.
+ #
+ # This gets wrapped in an "ensure" block because otherwise, if
+ # plugin_module.run() crashes, the traceback will get stored in
+ # output_buffer and never get printed.
+ $stdout = STDOUT
+ if output_buffer.size > 0 then
+ puts make_header(plugin_module.to_s())
+ puts output_buffer.string()
+ end
end