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#
# Copyright (C) 2011 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
class RequestContextGenerator
def initialize(app)
@app = app
end
def call(env)
# This is a crummy way to plumb this data through to the logger
request_id = UUIDSingleton.instance.generate
session_id = (env['rack.session.options'] || {})[:id]
Thread.current[:context] = {
:request_id => request_id,
:session_id => session_id
}
status, headers, body = @app.call(env)
# The session id may have been reset in the request, in which case
# we want to log the new one,
session_id = (env['rack.session.options'] || {})[:id]
headers['X-Session-Id'] = session_id if session_id
headers['X-Request-Context-Id'] = request_id
[ status, headers, body ]
end
def self.request_id
Thread.current[:context].try(:[], :request_id)
end
end
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