【发布时间】：2018-04-26 14:16:14
【问题描述】：
我正在尝试升级旧版应用以使用 2.2 版本的 LTI ruby gem。
目前，我无法使用以下方式获得 Oauth 请求进行验证：
authenticator = IMS::LTI::Services::MessageAuthenticator.new(@request.url, @params, secret)
authenticator.valid_signature?
我不确定是什么原因造成的，因为据我所知，这应该是一个有效的请求。以下是相关变量的转储：
App 9783 标准输出：--- OAUTH 密钥 ====> ocill-lti-key 应用程序 9783 标准输出：--- OAUTH 机密 ====> 已编辑！ 应用 9783 标准输出：--- 请求 URL https://lrc-tesuto.lrc.lsa.umich.edu/ocill/launch/create 应用 9783 标准输出：--- 请求参数 {"oauth_consumer_key"=>"ocill-lti-key"、"oauth_signature_method"=>"HMAC-SHA1"、"oauth_timestamp"=>"1510067228"、"oauth_nonce"=>"70h3qDQemquvfZeKZ03OIJt5Me06hmoUQuA ", "oauth_version"=>"1.0", "context_id"=>"de25c863939f3cacfc02480738d072d95597842c", "context_label"=>"johnathb Sandbox", "context_title"=>"针对 johnathb 的 Canvas 培训课程", "custom_canvas_assignment_points_possible"=>" 10", "custom_canvas_assignment_title"=>"OCILL 暂存测试", "custom_canvas_enrollment_state"=>"active", "ext_ims_lis_basic_outcome_url"=>"https://umich.instructure.com/api/lti/v1/tools/10530/ext_grade_passback", "ext_lti_assignment_id"=>"f9139721-be1f-473a-91b5-6a08a386074"" , "ext_outcome_data_values_accepted"=>"url,text", "ext_outcome_result_total_score_accepted"=>"true", "ext_outcomes_tool_placement_url"=>"https://umich.instructure.com/api/lti/v1/turnitin/outcomes_placement/10530", "ext_roles"=>"urn:lti:instrole:ims/lis/Administrator, urn:lti:instrole:ims/lis/Instructor,urn:lti:instrole:ims/lis/Student,urn:lti:role:ims/lis/Instructor,urn:lti:sysrole:ims/lis/User", " launch_presentat ion_document_target"=>"iframe", "launch_presentation_locale"=>"en", "launch_presentation_return_url"=>"https://umich.instructure.com/courses/56125/external_content/success/external_tool_redirect", "lis_outcome_service_url"=>"https://umich.instructure.com/api/lti/v1/tools/10530/grade_passback", "lti_message_type"=>"basic-lti-launch -request", "lti_version"=>"LTI-1p0", "oauth_callback"=>"about:blank", "resource_link_id"=>"52e0499f9ed929340aec886dd08c7035e45471f5", "resource_link_title"=>"OCILL Staging Test", "roles"= >“Instructor”、“tool_consumer_info_product_family_code”=>“canvas”、“tool_consumer_info_version”=>“云”、“tool_consumer_instance_contact_email”=>“notifications@instructure.com”、“tool_consumer_instance_guid”=>“7db438071375c02373713c12c73869ff2f470.6.in.” , "tool_consumer_instance_name"=>"密歇根大学 - 安娜堡分校", "user_id"=>"1ec00186b63b783a994fd2d5b7648ba6cdfe9807", "oauth_signature"=>"7jq4lBIBYoMzIeShPZbPNJjOrEs=", "controller"=>"launch", "action"=>" "}
App 9783 标准输出：--- AUTHENTICATOR INSPECT ===> #"ocill-lti-key", "oauth_signature_method"=>"HMAC-SHA1", "oauth_timestamp"=>"1510067228", "oauth_nonce"=> “70h3qDQemquvfZeKZ03OIJt5Me06hmoUuA4DEscIgQ”， “oauth_version”=> “1.0”， “context_id”=> “de25c863939f3cacfc02480738d072d95597842c”， “context_label”=> “johnathb沙箱”， “context_title”=> “画布为johnathb训练课程”， “custom_canvas_assignment_points_possible”= >"10", "custom_canvas_assignment_title"=>"OCILL 分期测试", "custom_canvas_enrollment_state"=>"active", "ext_ims_lis_basic_outcome_url"=>"https://umich.instructure.com/api/lti/v1/tools/10530/ext_grade_passback", "ext_lti_assignment_id"=>"f9139721-be1f-473a-91b5- 6a08a386074c", "ext_outcome_data_values_accepted"=>"url,text", "ext_outcome_result_total_score_accepted"=>"true", "ext_outcomes_tool_placement_url"=>"https://umich.instructure.com/api/lti/v1/turnitin/outcomes_placement/10530", "ext_roles"=>"urn:lti:instrole:ims/lis/管理员,urn:lti:instrole:ims/lis/Instructor,urn:lti:instrole:ims/lis/Student,urn:lti:role:ims/lis/Instructor,urn:lti:sysrole:ims/lis/User" , "launch_presentation_doc ument_target"=>"iframe", "launch_presentation_locale"=>"en", "launch_presentation_return_url"=>"https://umich.instructure.com/courses/56125/external_content/success/external_tool_redirect", "lis_outcome_service_url"=>"https://umich.instructure.com/api/lti/v1/tools/10530/grade_passback", "lti_message_type"=>"basic-lti-launch -request", "lti_version"=>"LTI-1p0", "oauth_callback"=>"about:blank", "resource_link_id"=>"52e0499f9ed929340aec886dd08c7035e45471f5", "resource_link_title"=>"OCILL Staging Test", "roles"= >“Instructor”、“tool_consumer_info_product_family_code”=>“canvas”、“tool_consumer_info_version”=>“云”、“tool_consumer_instance_contact_email”=>“notifications@instructure.com”、“tool_consumer_instance_guid”=>“7db438071375c02373713c12c73869ff2f470.6.in.” , "tool_consumer_instance_name"=>"密歇根大学 - 安娜堡分校", "user_id"=>"1ec00186b63b783a994fd2d5b7648ba6cdfe9807", "oauth_signature"=>"7jq4lBIBYoMzIeShPZbPNJjOrEs=", "controller"=>"launch", "action"=>" "}, @options={:consumer_key=>"ocill-lti-key", :signature_method=>"HMAC-SHA1", :timestamp=>"1510067228", :nonce=>"70h3qDQemquvfZeKZ03 OIJt5Me06hmoUuA4DEscIgQ", :version=>"1.0", :callback=>"about:blank"}, @parsed_params={:context_id=>"de25c863939f3cacfc02480738d072d95597842c", :context_label=>"johnathb Sandbox", :context_title=>" johnathb 培训课程", :custom_canvas_assignment_points_possible=>"10", :custom_canvas_assignment_title=>"OCILL 分期测试", :custom_canvas_enrollment_state=>"active", :ext_ims_lis_basic_outcome_url=>"https://umich.instructure.com/api/lti/v1/tools/10530/ext_grade_passback", :ext_lti_assignment_id=>"f913927 -473a-91b5-6a08a386074c", :ext_outcome_data_values_accepted=>"url,text", :ext_outcome_result_total_score_accepted=>"true", :ext_outcomes_tool_placement_url=>"https://umich.instructure.com/api/lti/v1/turnitin/outcomes_placement/10530", :ext_roles=>"urn:lti:instrole:ims/ /Administrator,urn:lti:instrole:ims/lis/Instructor,urn:lti:instrole:ims/lis/Student,urn:lti:role:ims/lis/Instructor,urn:lti:sysrole:ims/lis/User ", :launch_presentation_document_target=>"iframe", :launch_presentation_locale=>"en", :launch_presentation_return_url=>"https://umich.instructure.com/courses/56125/external_content/success/external_tool_redirect", :lis_outcome_service_url=>"https://umich.instructure.com/api/lti/v1/tools/10530/grade_passback", :lti _message_type=>"basic-lti-launch-request", :lti_version=>"LTI-1p0", :resource_link_id=>"52e0499f9ed929340aec886dd08c7035e45471f5", :resource_link_title=>"OCILL Staging Test", :roles=>"Instructor", : tool_consumer_info_product_family_code=>"canvas", :tool_consumer_info_version=>"cloud", :tool_consumer_instance_contact_email=>"notifications@instructure.com", :tool_consumer_instance_guid=>"7db438071375c02373713c12c73869ff2f470b68.umich-instance.com_name: Michigan_toolconsumer.instructure.com_name安娜堡", :user_id=>"1ec00186b63b783a994fd2d5b7648ba6cdfe9807", :controller=>"launch", :action=>"create"}, @consumer_key="ocill-lti-key", @Signature="7jq4lBIBYoMzIeShPZbPNJjOrEs=", @secret ="已编辑！", @message=#"10", "custom_canvas_assignment_title"=>"OCILL 暂存测试", "custom_canvas_enrollment_state"=>"active"}, @ext_params={"ext_ims_lis_basic_outcome_url"=>"https://umich.instructure.com/api/lti/v1/tools/10530/ext_grade_passback", "ext_lti_assignment_id"=>"f9139721-be1f-473a-91b5-6a08a386074c", "ext_outcome_data_values_accepted"=>"url,te xt", "ext_outcome_result_total_score_accepted"=>"true", "ext_outcomes_tool_placement_url"=>"https://umich.instructure.com/api/lti/v1/turnitin/outcomes_placement/10530", "ext_roles"=>"urn:lti:instrole:ims/lis/Administrator,urn:lti:instrole:ims/lis /Instructor,urn:lti:instrole:ims/lis/Student,urn:lti:role:ims/lis/Instructor,urn:lti:sysrole:ims/lis/User"}, @unknown_params={"controller"=> “启动”，“动作”=>“创建”}，@oauth_consumer_key="ocill-lti-key"，@oauth_signature_method="HMAC-SHA1"，@oauth_timestamp="1510067228"，@oauth_nonce="70h3qDQemquvfZeKZ03OIJt5Me06hmoUuA4DEscIgQ"，@oauth_version ="1.0", @context_id="de25c863939f3cacfc02480738d072d95597842c", @context_label="johnathb 沙盒", @context_title="johnathb 的 Canvas 培训课程", @launch_presentation_document_target="iframe", @launch_presentation_locale="en", @launch_presentation_return_url=" https://umich.instructure.com/courses/56125/external_content/success/external_tool_redirect"，@lis_outcome_service_url="https://umich.instructure.com/api/lti/v1/tools/10530/grade_passback"，@lti_mess age_type="basic-lti-launch-request", @lti_version="LTI-1p0", @oauth_callback="about:blank", @resource_link_id="52e0499f9ed929340aec886dd08c7035e45471f5", @resource_link_title="OCILL Staging Test", @roles="讲师”，@tool_consumer_info_product_family_code="canvas"，@tool_consumer_info_version="cloud"，@tool_consumer_instance_contact_email="notifications@instructure.com"，@tool_consumer_instance_guid="7db438071375c02373713c12c73869ff2f470b68.umich.instructure_com"，@密歇根大学乔木"，@user_id="1ec00186b63b783a994fd2d5b7648ba6cdfe9807"，@oauth_signature="7jq4lBIBYoMzIeShPZbPNJjOrEs="，@launch_url="https://lrc-tesuto.lrc.lsa.umich.edu/ocill/launch/create">，@simple_oauth_header= https://lrc-tesuto.lrc.lsa.umich.edu/ocill/launch/create>, @params={:context_id=>"de25c863939f3cacfc02480738d072d95597842c", :context_label=>"johnathb Sandbox", :context_title=>"A johnathb 的帆布培训课程", :custom_canvas_assignment_points_possible=>"10" , :custom_canvas_assignment_title=>"OCILL 分期测试", :custom_canvas_enrollment_state=>"active", :ext_ims_lis_basic_outcome_url=>"https://umich.instructure.com/api/lti/v1/tools/10530/ext_grade_passback", :ext_lti_assignment_id=>"f9139721-be1f-473a-91b5-6a08a386074c_acceptedout_e", url,text", :ext_outcome_result_total_score_accepted=>"true", :ext_outcomes_tool_placement_url=>"https://umich.instructure.com/api/lti/v1/turnitin/outcomes_placement/10530", :ext_roles=>"urn:lti:instrole:ims/lis/Administrator,urn:lti:instrole:ims/lis/教练，urn:lti:instrole:ims/lis/Student,urn:lti:role:ims/lis/Instructor,urn:lti:sysrole:ims/lis/User", :launch_presentation_document_target=>"iframe", :launch_presentation_locale= >"en", :launch_presentation_return_url=>"https://umich.instructure.com/courses/56125/external_content/success/external_tool_redirect", :lis_outcome_service_url=>"https://umich.instructure.com/api/lti/v1/tools/10530/grade_passback", :lti_message_type=>"basic-lti-launch-request", :lti_version=>"LTI-1p0", : resource_link_id=>"52e0499f9ed929340aec886dd08c7035e45471f5", :resource_link_title=>"OCILL 分期测试", :roles=>"讲师", :tool_consumer_info_product_family_code=>"canvas", :tool_consumer_info_version=>"cloud ”：tool_consumer_instance_contact_email => “notifications@instructure.com”：tool_consumer_instance_guid => “7db438071375c02373713c12c73869ff2f470b68.umich.instructure.com”：tool_consumer_instance_name => “密歇根大学 - 安娜堡分校”：USER_ID => “1ec00186b63b783a994fd2d5b7648ba6cdfe9807”：控制器=>“启动”，：动作=>“创建”}，@options={:nonce=>“70h3qDQemquvfZeKZ03OIJt5Me06hmoUuA4DEscIgQ”，：signature_method=>“HMAC-SHA1”，：时间戳=>“1510067228”，：版本=> "1.0", :consumer_key=>"ocill-lti-key", :callback=>"about:blank", :consumer_secret=>"已编辑！"}>>
【问题讨论】：
标签： ruby-on-rails oauth lti