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render_error_pages.rb
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render_error_pages.rb
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#!/usr/bin/env ruby
# 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.
$LOAD_PATH.unshift("#{File.dirname(__FILE__)}/../lib")
$LOAD_PATH.unshift("#{File.dirname(__FILE__)}/../ext")
require 'phusion_passenger/html_template'
require 'phusion_passenger/spawn_manager'
require 'phusion_passenger/platform_info'
include PhusionPassenger
if !defined?(Mysql::Error)
module Mysql
class Error < StandardError
end
end
end
def create_dummy_exception
begin
raise StandardError, "A dummy exception."
rescue => e
return e
end
end
def create_database_exception
begin
raise Mysql::Error, "Cannot connect to database localhost:12345: connection refused (1234)"
rescue => e
return e
end
end
def create_dummy_backtrace
dummy_backtrace = nil
begin
raise StandardError, "A dummy exception."
rescue => e
dummy_backtrace = e.backtrace
end
dummy_backtrace.unshift("/webapps/foo/app/models/Foo.rb:102:in `something`")
dummy_backtrace.unshift("/webapps/foo/config/environment.rb:10")
return dummy_backtrace
end
def render_error_page(exception, output, template)
exception.set_backtrace(create_dummy_backtrace)
File.open(output, 'w') do |f|
template = HTMLTemplate.new(template,
:error => exception, :app_root => "/foo/bar")
f.write(template.result)
puts "Written '#{output}'"
end
end
def start
bt = create_dummy_backtrace
e = FrameworkInitError.new("Some error message",
create_dummy_exception,
:vendor => '/webapps/foo')
render_error_page(e, 'framework_init_error_with_vendor.html',
'framework_init_error')
e = FrameworkInitError.new("Some error message",
create_dummy_exception,
:version => '1.2.3')
render_error_page(e, 'framework_init_error.html',
'framework_init_error')
e = VersionNotFound.new("Some error message", '>= 1.0.2')
render_error_page(e, 'version_not_found.html',
'version_not_found')
e = AppInitError.new("Some error message", create_dummy_exception)
render_error_page(e, 'app_init_error.html',
'app_init_error')
e = AppInitError.new("Some error message", create_database_exception)
render_error_page(e, 'database_error.html',
'database_error')
e = ArgumentError.new("Some error message")
render_error_page(e, 'invalid_app_root.html',
'invalid_app_root')
e = StandardError.new("Some error message")
render_error_page(e, 'general_error.html',
'general_error')
e = AppInitError.new("Some error message", create_dummy_exception)
render_error_page(e, 'app_exited.html', 'app_exited_during_initialization')
end
start