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unfreeze rails 2.3.9

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Reinier Balt 2011-02-04 16:35:00 +01:00
parent 6443adac78
commit dea6dbe4da
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183
vendor/rails/actionpack/lib/action_controller/rescue.rb vendored
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module ActionController #:nodoc:
# Actions that fail to perform as expected throw exceptions. These
# exceptions can either be rescued for the public view (with a nice
# user-friendly explanation) or for the developers view (with tons of
# debugging information). The developers view is already implemented by
# the Action Controller, but the public view should be tailored to your
# specific application.
#
# The default behavior for public exceptions is to render a static html
# file with the name of the error code thrown. If no such file exists, an
# empty response is sent with the correct status code.
#
# You can override what constitutes a local request by overriding the
# <tt>local_request?</tt> method in your own controller. Custom rescue
# behavior is achieved by overriding the <tt>rescue_action_in_public</tt>
# and <tt>rescue_action_locally</tt> methods.
module Rescue
LOCALHOST = [/^127\.0\.0\.\d{1,3}$/, /^::1$/, /^0:0:0:0:0:0:0:1(%.*)?$/].freeze
DEFAULT_RESCUE_RESPONSE = :internal_server_error
DEFAULT_RESCUE_RESPONSES = {
'ActionController::RoutingError' => :not_found,
'ActionController::UnknownAction' => :not_found,
'ActiveRecord::RecordNotFound' => :not_found,
'ActiveRecord::StaleObjectError' => :conflict,
'ActiveRecord::RecordInvalid' => :unprocessable_entity,
'ActiveRecord::RecordNotSaved' => :unprocessable_entity,
'ActionController::MethodNotAllowed' => :method_not_allowed,
'ActionController::NotImplemented' => :not_implemented,
'ActionController::InvalidAuthenticityToken' => :unprocessable_entity
}
DEFAULT_RESCUE_TEMPLATE = 'diagnostics'
DEFAULT_RESCUE_TEMPLATES = {
'ActionView::MissingTemplate' => 'missing_template',
'ActionController::RoutingError' => 'routing_error',
'ActionController::UnknownAction' => 'unknown_action',
'ActionView::TemplateError' => 'template_error'
}
RESCUES_TEMPLATE_PATH = ActionView::Template::EagerPath.new_and_loaded(
File.join(File.dirname(__FILE__), "templates"))
def self.included(base) #:nodoc:
base.cattr_accessor :rescue_responses
base.rescue_responses = Hash.new(DEFAULT_RESCUE_RESPONSE)
base.rescue_responses.update DEFAULT_RESCUE_RESPONSES
base.cattr_accessor :rescue_templates
base.rescue_templates = Hash.new(DEFAULT_RESCUE_TEMPLATE)
base.rescue_templates.update DEFAULT_RESCUE_TEMPLATES
base.extend(ClassMethods)
base.send :include, ActiveSupport::Rescuable
base.class_eval do
alias_method_chain :perform_action, :rescue
end
end
module ClassMethods
def call_with_exception(env, exception) #:nodoc:
request = env["action_controller.rescue.request"] ||= Request.new(env)
response = env["action_controller.rescue.response"] ||= Response.new
new.process(request, response, :rescue_action, exception)
end
end
protected
# Exception handler called when the performance of an action raises
# an exception.
def rescue_action(exception)
rescue_with_handler(exception) ||
rescue_action_without_handler(exception)
end
# Overwrite to implement custom logging of errors. By default
# logs as fatal.
def log_error(exception) #:doc:
ActiveSupport::Deprecation.silence do
if ActionView::TemplateError === exception
logger.fatal(exception.to_s)
else
logger.fatal(
"\n#{exception.class} (#{exception.message}):\n " +
clean_backtrace(exception).join("\n ") + "\n\n"
)
end
end
end
# Overwrite to implement public exception handling (for requests
# answering false to <tt>local_request?</tt>). By default will call
# render_optional_error_file. Override this method to provide more
# user friendly error messages.
def rescue_action_in_public(exception) #:doc:
render_optional_error_file response_code_for_rescue(exception)
end
# Attempts to render a static error page based on the
# <tt>status_code</tt> thrown, or just return headers if no such file
# exists. At first, it will try to render a localized static page.
# For example, if a 500 error is being handled Rails and locale is :da,
# it will first attempt to render the file at <tt>public/500.da.html</tt>
# then attempt to render <tt>public/500.html</tt>. If none of them exist,
# the body of the response will be left empty.
def render_optional_error_file(status_code)
status = interpret_status(status_code)
locale_path = "#{Rails.public_path}/#{status[0,3]}.#{I18n.locale}.html" if I18n.locale
path = "#{Rails.public_path}/#{status[0,3]}.html"
if locale_path && File.exist?(locale_path)
render :file => locale_path, :status => status, :content_type => Mime::HTML
elsif File.exist?(path)
render :file => path, :status => status, :content_type => Mime::HTML
else
head status
end
end
# True if the request came from localhost, 127.0.0.1. Override this
# method if you wish to redefine the meaning of a local request to
# include remote IP addresses or other criteria.
def local_request? #:doc:
LOCALHOST.any?{ |local_ip| request.remote_addr =~ local_ip && request.remote_ip =~ local_ip }
end
# Render detailed diagnostics for unhandled exceptions rescued from
# a controller action.
def rescue_action_locally(exception)
@template.instance_variable_set("@exception", exception)
@template.instance_variable_set("@rescues_path", RESCUES_TEMPLATE_PATH)
@template.instance_variable_set("@contents",
@template.render(:file => template_path_for_local_rescue(exception)))
response.content_type = Mime::HTML
render_for_file(rescues_path("layout"),
response_code_for_rescue(exception))
end
def rescue_action_without_handler(exception)
log_error(exception) if logger
erase_results if performed?
# Let the exception alter the response if it wants.
# For example, MethodNotAllowed sets the Allow header.
if exception.respond_to?(:handle_response!)
exception.handle_response!(response)
end
if consider_all_requests_local || local_request?
rescue_action_locally(exception)
else
rescue_action_in_public(exception)
end
end
private
def perform_action_with_rescue #:nodoc:
perform_action_without_rescue
rescue Exception => exception
rescue_action(exception)
end
def rescues_path(template_name)
RESCUES_TEMPLATE_PATH["rescues/#{template_name}.erb"]
end
def template_path_for_local_rescue(exception)
rescues_path(rescue_templates[exception.class.name])
end
def response_code_for_rescue(exception)
rescue_responses[exception.class.name]
end
def clean_backtrace(exception)
defined?(Rails) && Rails.respond_to?(:backtrace_cleaner) ?
Rails.backtrace_cleaner.clean(exception.backtrace) :
exception.backtrace
end
end
end