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# Phusion Passenger - http://www.modrails.com/
# Copyright (c) 2010 Phusion
#
# "Phusion Passenger" is a trademark of Hongli Lai & Ninh Bui.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require 'phusion_passenger'
require 'etc'
module PhusionPassenger
class Plugin
@@hooks = {}
@@classes = {}
def self.load(name, load_once = true)
PLUGIN_DIRS.each do |plugin_dir|
if plugin_dir =~ /\A~/
# File.expand_path uses ENV['HOME'] which we don't want.
home = Etc.getpwuid(Process.uid).dir
plugin_dir = plugin_dir.sub(/\A~/, home)
end
plugin_dir = File.expand_path(plugin_dir)
Dir["#{plugin_dir}/*/#{name}.rb"].each do |filename|
if load_once
require(filename)
else
load(filename)
end
end
end
end
def self.register_hook(name, &block)
hooks_list = (@@hooks[name] ||= [])
hooks_list << block
end
def self.call_hook(name, *args, &block)
last_result = nil
if (hooks_list = @@hooks[name])
hooks_list.each do |callback|
last_result = callback.call(*args, &block)
end
end
return last_result
end
def self.register(name, klass)
classes = (@@classes[name] ||= [])
classes << klass
end
def initialize(name, *args, &block)
Plugin.load(name)
classes = @@classes[name]
if classes
@instances = classes.map do |klass|
klass.new(*args, &block)
end
else
return nil
end
end
def call_hook(name, *args, &block)
last_result = nil
if @instances
@instances.each do |instance|
if instance.respond_to?(name.to_sym)
last_result = instance.__send__(name.to_sym, *args, &block)
end
end
end
return last_result
end
end
end # module PhusionPassenger
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