TestServer\TestServerController::metadata()

Complexity

Conditions	6
Paths	12

Size

Total Lines	46
Code Lines	20

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
    private function metadata(App $app)
    {
        // The enrollment key must be there, it binds the user's browser session to the request comming from
        // the user's tiqr client
        $enrollment_key = $app->getGET()['enrollment_key'] ?? '';
        if (strlen($enrollment_key) == 0) {
            // http://<server>/metadata?enrollment_key=<the enrollment key from the QR code>
            $app::error_exit(404, "metadata: 'enrollment_key' request parameter not set");
        }
        // Generate an enrollment secret to add to the metadata URL
        $enrollment_secret = $this->tiqrService->getEnrollmentSecret($enrollment_key);
        $app::log_info("Created enrollment secret $enrollment_secret for enrollment key $enrollment_key");

        // -----BEGIN NOTE-----
        // The enrollment_secret must be added manually to the enrollment URL.
        // I do not see why getEnrollmentMetadata cannot handle this for us en return the enrollment_secret
        // to the tiqr client as part of the $enrollment_metadata. That would make the call to getEnrollmentSecret()
        // redundant en the gereration of the metadata simpler. The Tiqr client could then return the enrollment_secret
        // in it's POST back to the $enrollment_url.
        // -----END NOTE-----

        // Add enrollment_secret to the $enrollment_url
        $enrollment_url = $this->host_url . "/finish-enrollment?enrollment_secret=$enrollment_secret";
        $authentication_url = $this->host_url . '/authentication';
        // Get the enrollment data
        $enrollment_metadata = $this->tiqrService->getEnrollmentMetadata($enrollment_key, $authentication_url, $enrollment_url);
        if (false == $enrollment_metadata) {
            // Happens when calling metadata with the same enrollment key a second time
            $app::error_exit(500, 'Error getting enrollment metadata');
        }
        // Print the generated enrollment data in a more readable form
        foreach ($enrollment_metadata as $key1 => $value1) {
            if (is_array($value1)) {
                foreach ($value1 as $key2 => $value2) {
                    $app::log_info("Metadata: $key1/$key2=$value2");
                }
            }
            else {
                $app::log_info("Metadata: $key1=$value1");
            }
        }
        // The enrollment metadata must be returned to the client as JSON
        $enrollment_metadata_json = json_encode($enrollment_metadata);
        $app::log_info("Return: $enrollment_metadata_json");
        header("content-type: application/json");
        echo $enrollment_metadata_json;
    }
}