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94 lines
3.0 KiB
94 lines
3.0 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2017 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module API
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module Utilities
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module GrapeHelper
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##
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# We need this to be able to use `Grape::Middleware::Error#error_response`
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# outside of the Grape context. We use it outside of the Grape context because
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# OpenProject authentication happens in a middleware upstream of Grape.
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class GrapeError < Grape::Middleware::Error
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def initialize(env)
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@env = env
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@options = {}
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end
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end
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def grape_error_for(env, api)
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GrapeError.new(env).tap do |e|
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e.options[:content_types] = api.content_types
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e.options[:format] = 'hal+json'
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end
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end
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def error_response(rescued_error, error = nil, rescue_subclasses: nil, headers: ->() { {} }, log: true)
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error_response_lambda = default_error_response(headers, log)
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response =
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if error.nil?
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error_response_lambda
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else
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lambda { instance_exec error, &error_response_lambda }
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end
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# We do this lambda business because #rescue_from behaves differently
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# depending on the number of parameters the passed block accepts.
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rescue_from rescued_error, rescue_subclasses: rescue_subclasses, &response
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end
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def default_error_response(headers, log)
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lambda { |e|
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representer = ::API::V3::Errors::ErrorRepresenter.new e
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resp_headers = instance_exec &headers
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env['api.format'] = 'hal+json'
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if log
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message = <<-MESSAGE
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Grape rescuing from error: #{e}
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Original error: #{$!.inspect}
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Stacktrace:
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MESSAGE
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$@.each do |line|
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message << "\n #{line}"
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end
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Rails.logger.error message
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end
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error_response status: e.code, message: representer.to_json, headers: resp_headers
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}
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end
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end
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end
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end
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