-#!/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.
-#
# Define a usage string using the program name.
exe = File.basename($PROGRAM_NAME)
require 'mailshears'
# Since we removed both the executable name and the mode name (if it
-# existed) from ARGV, what remains should be the required
-# arguments.
-if (mode == :prune and (ARGV.length() != 0)) or
- (mode == :rm and (ARGV.length() < 1)) or
- (mode == :mv and (ARGV.length() != 2)) then
- puts "ERROR: missing (or extra) command-line arguments."
+# existed) from ARGV, what remains should be the required arguments.
+# Figure out if we have the wrong number of arguments, and store the
+# associated error message in args_error_message if we do.
+args_error_message = nil
+if mode == :prune and ARGV.length() != 0 then
+ args_error_message = "ERROR: prune mode takes no additional arguments."
+elsif mode == :rm and ARGV.length() < 1 then
+ args_error_message = "ERROR: rm mode takes two or more user arguments."
+elsif mode == :mv and ARGV.length() != 2 then
+ args_error_message = "ERROR: mv mode takes exactly two user arguments."
+end
+
+# If we got the wrong number of arguments, we'll have some error
+# message. Report it and quit.
+if not args_error_message.nil? then
+ STDERR.puts args_error_message
puts "Usage: #{usage}"
Kernel.exit(ExitCodes::BAD_COMMAND_LINE)
end
+
cfg = Configuration.new()
# Load each of the plugins that we'll need.
require "#{mode_name}/#{mode_name}_dummy_runner"
def make_header(plugin_name)
- # The header that we output before the list of domains/accounts.
+ # The header that we output before the list of domains/users.
# Just the path of this script, the current time, and the plugin name.
exe = File.basename($PROGRAM_NAME)
header = "#{exe}, "
end
-plugin_class = nil
-runner_class = nil
-dummy_runner_class = nil
+plugin_module = nil
if mode == :rm then
- plugin_class = RmPlugin
- runner_class = RmRunner
- dummy_runner_class = RmDummyRunner
+ plugin_module = RmPlugin
elsif mode == :mv then
- plugin_class = MvPlugin
- runner_class = MvRunner
- dummy_runner_class = MvDummyRunner
+ plugin_module = MvPlugin
else
# Safe, catch-all default
- plugin_class = PrunePlugin
- runner_class = PruneRunner
- dummy_runner_class = PruneDummyRunner
+ plugin_module = PrunePlugin
end
-puts make_header(plugin_class.to_s())
+# 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
-plugin_class.includers.each do |plugin_class_includer|
- plugin = plugin_class_includer.new()
-
- if cfg.i_mean_business then
- runner = runner_class.new()
- else
- runner = dummy_runner_class.new()
+# 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
-
- # The splat passes the correct (we hope) number of arguments to the
- # appropriate runner. The Rm(Dummy)Runner have splats on their
- # *target arguments as well, to turn ARGV back into an array.
- runner.run(plugin, *ARGV)
-
- puts ""
-end
-
-
-
-Kernel.exit(0)
-
-
-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)
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)
-end
-
-
-Plugin.includers.each do |plugin_class_includer|
- plugin = plugin_class_includer.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
-
- 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
-
- if leftover_domains.size > 0 or leftover_accounts.size > 0
- puts make_header(plugin_class.to_s())
-
- 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
-
- 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
-
- puts ""
+ 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
projects / mailshears.git / blobdiff