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module ExceptionNotification
class Rack
def initialize(app, options = {})
@app = app
ExceptionNotifier.ignored_exceptions = options.delete(:ignore_exceptions) if options.key?(:ignore_exceptions)
if options.key?(:ignore_if)
rack_ignore = options.delete(:ignore_if)
ExceptionNotifier.ignore_if do |exception, options|
options.key?(:env) && rack_ignore.call(options[:env], exception)
end
end
if options.key?(:ignore_crawlers)
ignore_crawlers = options.delete(:ignore_crawlers)
ExceptionNotifier.ignore_if do |exception, options|
options.key?(:env) && from_crawler(options[:env], ignore_crawlers)
end
end
options.each do |notifier_name, options|
ExceptionNotifier.register_exception_notifier(notifier_name, options)
end
end
def call(env)
@app.call(env)
rescue Exception => exception
if ExceptionNotifier.notify_exception(exception, :env => env)
env['exception_notifier.delivered'] = true
end
raise exception
end
private
def from_crawler(env, ignored_crawlers)
agent = env['HTTP_USER_AGENT']
Array(ignored_crawlers).any? do |crawler|
agent =~ Regexp.new(crawler)
end
end
end
end
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