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Embed LTI and Oauth signature on jsp
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| <%@page contentType="text/html" pageEncoding="UTF-8"%> | |
| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> | |
| <%@ page import="blackboard.platform.session.*, | |
| java.util.*, | |
| java.net.*, | |
| blackboard.data.user.*, | |
| blackboard.persist.*, | |
| blackboard.data.course.*, | |
| blackboard.persist.course.*, | |
| javax.crypto.spec.SecretKeySpec, | |
| blackboard.data.role.*, | |
| javax.crypto.SecretKey, | |
| blackboard.data.course.CourseMembership.*, | |
| java.util.Base64.Encoder,org.apache.commons.codec.binary.Base64, | |
| javax.crypto.Mac" | |
| errorPage="../error.jsp"%> | |
| <%@page import="com.spvsoftwareproducts.blackboard.utils.B2Context" errorPage="../error.jsp"%> | |
| <%@page import="iloslib.*, | |
| iloslib.models.*, | |
| iloslib.collections.*, | |
| iloslib.repositories.*" | |
| errorPage ="../error.jsp" %> | |
| <%@ page import="java.sql.Array" %> | |
| <%@ taglib uri="/bbNG" prefix="bbNG"%> | |
| <%@ taglib uri="/bbNG" prefix="bbNG"%> | |
| <%@ taglib uri="/bbData" prefix="bbData"%> | |
| <%@ page isErrorPage="true" %> | |
| <bbData:context id="ctx"> | |
| <bbNG:learningSystemPage ctxId="ctx2" hideCourseMenu="1" > | |
| <% | |
| String SERVER_NAME = "server-name"; | |
| String API_KEY = "api-key"; | |
| String API_SECRET = "secret-key"; | |
| B2Context b2Context = new B2Context(request); | |
| String jQueryPath = b2Context.getPath() + "js/jquery.min.js"; | |
| String returnUrl = b2Context.getServerUrl() + b2Context.getPath() + "handler/ltiSuccess.jsp"; | |
| String apiKey = b2Context.getSetting(API_KEY); | |
| String instanceName = b2Context.getServerUrl(); | |
| String server = b2Context.getSetting(SERVER_NAME); | |
| String endPoint = server + "/lti/embed"; | |
| String familyCode = "BlackboardBB"; | |
| String selectionDirective = "embed_content"; | |
| String intendedUse = "embed"; | |
| User user = b2Context.getContext().getUser(); | |
| String email = user.getEmailAddress(); | |
| String name = user.getGivenName(); | |
| //Weird bug that converts spaces to + so I'm just removing any space from the name | |
| name = name.replaceAll("\\s+",""); | |
| CourseMembership courseMembership = b2Context.getContext().getCourseMembership(); | |
| Role role = courseMembership.getRole(); | |
| //Just as the ilos app, the token is null, so we have to add the extra & | |
| String secret = b2Context.getSetting(API_SECRET)+"&"; | |
| String basePostString = "POST&" + URLEncoder.encode(endPoint) + "&"; | |
| //Manually create a base string and signature, they have to be in alphabetic order | |
| String baseStringParameters = "ext_content_intended_use=" + intendedUse + | |
| "&launch_presentation_return_url=" + URLEncoder.encode(returnUrl) + | |
| "&lis_person_contact_email_primary=" + URLEncoder.encode(email) + | |
| "&lis_person_name_given=" + URLEncoder.encode(name) + | |
| "&oauth_consumer_key=" + apiKey + | |
| "&roles=" + URLEncoder.encode(role.toString()) + | |
| "&selection_directive=" + selectionDirective + | |
| "&tool_consumer_info_product_family_code=" + familyCode + | |
| "&tool_consumer_instance_name=" + URLEncoder.encode(instanceName); | |
| String baseString = basePostString + URLEncoder.encode(baseStringParameters); | |
| //As in the app we need to sign the baseString using HmacSHA1 and after that we encodeBase64 the baseString | |
| SecretKeySpec keySpec = new SecretKeySpec(secret.getBytes(), "HmacSHA1"); | |
| Mac mac = Mac.getInstance("HmacSHA1"); | |
| mac.init(keySpec); | |
| byte[] text = baseString.getBytes(); | |
| String signature = new String(Base64.encodeBase64(mac.doFinal(text))).trim(); | |
| %> | |
| <bbNG:jsFile href="<%=jQueryPath %>"/> | |
| <bbNG:jsBlock> | |
| <script type="text/javascript"> | |
| jQuery.noConflict(); | |
| // Use jQuery via jQuery(...) | |
| jQuery(document).ready(function(){ | |
| jQuery("#ltiPost").submit(); | |
| }); | |
| </script> | |
| </bbNG:jsBlock> | |
| <bbNG:cssFile href="../css/IlosB2.css"/> | |
| <bbNG:cssFile href="../css/jquery.fancybox.css" /> | |
| <<form method="post" id="ltiPost" name="ltiPost" action="<%=server%>/lti/embed"> | |
| <input type="hidden" name="ext_content_intended_use" id="ext_content_intended_use" value="<%=intendedUse%>"> | |
| <input type="hidden" name="launch_presentation_return_url" id="launch_presentation_return_url" value="<%=returnUrl%>"> | |
| <input type="hidden" name="lis_person_contact_email_primary" id="lis_person_contact_email_primary" value="<%=email%>"> | |
| <input type="hidden" name="lis_person_name_given" id="lis_person_name_given" value="<%=name%>"> | |
| <input type="hidden" name="oauth_consumer_key" id="oauth_consumer_key" value="<%=apiKey%>"> | |
| <input type="hidden" name="roles" id="roles" value="<%=role.toString()%>"> | |
| <input type="hidden" name="tool_consumer_instance_name" id="tool_consumer_instance_name" value="<%=instanceName%>"> | |
| <input type="hidden" name="selection_directive" id="selection_directive" value="<%=selectionDirective%>"> | |
| <input type="hidden" name="tool_consumer_info_product_family_code" id="tool_consumer_info_product_family_code" value="<%=familyCode%>"> | |
| <input type="hidden" name="oauth_signature" id="oauth_signature" value="<%=signature%>"> | |
| <input type="hidden" name="baseString" id="baseString" value="<%=baseString%>"> | |
| </form> | |
| </bbNG:learningSystemPage> | |
| </bbData:context> |
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