Generate random passwords from inside Weechat.

passgen.rb

# Copyright (c) 2013 Shawn Smith <ShawnSmith0828@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

def weechat_init
	Weechat.register("passgen",
		"Shawn Smith",
		"0.1",
		"GPL3",
		"Generate random passwords.",
		"",
		"")

	Weechat.hook_command("passgen",
		"Generate random passwords.",
		"[length]",
		"length: Specifies the length of the password to generate. Defaults to 32",
		"",
		"passgen_command_cb",
		"")

	return Weechat::WEECHAT_RC_OK
end

def passgen_command_cb(data, buffer, args)
	# Print to the user
	Weechat.print(buffer, "Generated Password: #{generate_pass(args)}")

	return Weechat::WEECHAT_RC_OK
end

# Generate our password
def generate_pass(length)
	# Default to 32 is length < 1
	length = 32 if length.to_i < 1

	# This limits the password to certain characters.
	# Some characters may throw errors, like commas and semicolons. So we filter out the really weird ones.
	chars = (36..43).to_a.pack('U*') + (48..57).to_a.pack('U*') + (65..95).to_a.pack('U*') + (97..122).to_a.pack('U*')
	password = ''
	length.to_i.times { password << chars[rand(chars.size)] }

	return password
end