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Add support for ContentItemUpdateRequest #83

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Add support for ContentItemUpdateRequest #83

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12 changes: 8 additions & 4 deletions src/provider.coffee
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Original file line number Diff line number Diff line change
Expand Up @@ -56,15 +56,19 @@ class Provider

correct_version = require('./ims-lti').supported_versions.indexOf(body.lti_version) isnt -1
has_resource_link_id = body.resource_link_id?
omits_presentation_lis_params =
not body.launch_presentation_return_url? and
not body.lis_result_sourcedid?

omits_content_item_params =
not body.resource_link_id? and
not body.resource_link_title? and
not body.resource_link_description? and
not body.launch_presentation_return_url? and
not body.lis_result_sourcedid?
not body.resource_link_description?

correct_version and
( body.lti_message_type is 'basic-lti-launch-request' and has_resource_link_id ) or
( body.lti_message_type is 'ContentItemSelectionRequest' and omits_content_item_params )
( body.lti_message_type is 'ContentItemSelectionRequest' and omits_content_item_params and omits_presentation_lis_params ) or
( body.lti_message_type is 'ContentItemUpdateRequest' and omits_presentation_lis_params)

# Helper to validate the OAuth information in the request
#
Expand Down