-#!/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.
+# mailshears, to prune unused mail directories (and more).
#
+# Load all of our lib/ code.
require 'mailshears'
-cfg = Configuration.new()
-pgadb = PostfixadminDb.new(cfg.dbhost,
- cfg.dbport,
- cfg.dbopts,
- cfg.dbtty,
- cfg.dbname,
- cfg.dbuser,
- cfg.dbpass)
+# Define a usage string using the program name.
+program_name = File.basename($PROGRAM_NAME)
+# Defaults
+mode_name = 'prune'
+mode = :prune
-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 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
- # 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)
+# Determine the mode from its name.
+if mode_name == 'rm' then
+ mode = :rm
+elsif mode_name == 'mv' then
+ mode = :mv
end
+# Since we removed 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 necessary.
+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
-Plugin.includers.each do |plugin_class|
- plugin = plugin_class.new()
+# If we got the wrong number of arguments, we'll have an error message
+# here. Report it and exit with a failure code.
+if not args_error_message.nil? then
+ STDERR.puts args_error_message
+ puts "Usage: #{UserInterface.usage(program_name)}"
+ Kernel.exit(ExitCodes::BAD_COMMAND_LINE)
+end
- 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
- 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)
- end
+# Load each of the plugins that we'll need.
+cfg = Configuration.new()
- 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
+cfg.plugins.each do |plugin_file|
+ require "#{mode_name}/plugins/#{plugin_file}"
+end
- header += ' (Plugin: ' + plugin_class.to_s + ")\n"
- puts header
- puts '-' * header.size # Underline the header.
+# And the runners.
+require "#{mode_name}/#{mode_name}_runner"
+require "#{mode_name}/#{mode_name}_dummy_runner"
- leftover_domains.each do |domain|
- puts "Found: #{domain} (#{plugin.describe_domain(domain)})"
- end
+# Now we figure out which plugin module to use based on our mode.
+plugin_module = nil
- leftover_accounts.each do |account|
- puts "Found: #{account} (#{plugin.describe_account(account)})"
- end
+if mode == :rm then
+ plugin_module = RmPlugin
+elsif mode == :mv then
+ plugin_module = MvPlugin
+else
+ # Safe, catch-all default
+ plugin_module = PrunePlugin
+end
- 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
+# 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 = []
- puts ""
+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
+
+
+# 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
+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 UserInterface.make_header(program_name, plugin_module.to_s())
+ puts output_buffer.string()
+ end
end
+
+# If we made it here without crashing, well that sounds pretty
+# successful to me.
+Kernel.exit(ExitCodes::SUCCESS)
projects / mailshears.git / blobdiff