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For LTI plugin in richtext editor change window location to Canvas specified returnUrl with parameters of the iframe ( Possible Redirect Parameters )
for LTI as a tool page( TALIS reading list, PIAZZA ) |
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Be confident, just an easy cgi coding
Some tips
- Skim read LTI and oAuth specification
- oauth 1 signature verification:
base_string:
percent encoding POST&yourCgiURL&normalized_parameters
use shared secret&token to HMAC-SHA1( base_string ) and generate the signature.
- LTI Signature Verifier
https://lti-tool-provider.herokuapp.com/tool_config.xml?signature_proxy_test=1
- Update action: parameter[ "text" ] the selected iframe html code.
- For LTI plugin: add "text" field to your parameter if not exist.
- Canvas LMS developer group
- Edu App Cener(https://www.eduappcenter.com/)
- Canvas Code( https://codeclimate.com/github/instructure/canvas-lms )
$authorization = "Authorization: Bearer ". $current_token; function getCanvasAPIcurl($authorization, $url){ //// Get cURL resource $curl = curl_init(); // Set some options - we are passing in a useragent too here curl_setopt($curl, CURLOPT_URL,$url); //curl_setopt($curl, CURLOPT_PROXY, $_SESSION['proxy']); curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Accept: application/json', $authorization )); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_VERBOSE, 1); curl_setopt($curl, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT"); //curl_setopt($curl, CURLOPT_HTTPGET, true); // Send the request & save response to $resp $data = curl_exec($curl); $info = curl_getinfo($curl); if(curl_errno($curl) !=0){ echo "error numbers:". curl_errno($curl) . "
"; echo "error message:". curl_error($curl) . "
"; echo '
Took ' . $info['total_time'] . ' seconds to send a request to ' . $info['url']; curl_close($curl); exit(); } // Close request to clear up some resources curl_close($curl); }
