37 lines
1.3 KiB
Ruby
37 lines
1.3 KiB
Ruby
#
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# Copyright (C) 2018 - present Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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module Lti::RedisMessageClient
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TTL = 5.minutes
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LTI_1_3_PREFIX = 'external_tool:id_token:'.freeze
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SESSIONLESS_LAUNCH_PREFIX = 'external_tool:sessionless_launch:'.freeze
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def cache_launch(launch, context, prefix: LTI_1_3_PREFIX)
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return unless Canvas.redis_enabled?
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verifier = SecureRandom.hex(64)
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Canvas.redis.setex("#{context.class.name}:#{prefix}#{verifier}", 5.minutes, launch.to_json)
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verifier
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end
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def fetch_and_delete_launch(context, verifier, prefix: LTI_1_3_PREFIX)
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return unless Canvas.redis_enabled?
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redis_key = "#{context.class.name}:#{prefix}#{verifier}"
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launch = Canvas.redis.get(redis_key)
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Canvas.redis.del(redis_key)
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launch
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end
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end |