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<?php
namespace Drupal\asc_courses;
// use Consolidation\OutputFormatters\StructuredData\RowsOfFields;
// use Drush\Commands\DrushCommands;
use \Drupal\Core\Database\Database;
use \Drupal\Core\Config;
class AscCoursesApi {
protected $debug = 0;
protected $consumer_key;
protected $consumer_secret;
public $config;
public $soip_constant_name;
public $environment;
public $base_url;
public $access_token;
public $access_token_data;
public $resolve_host;
/**
* {@inheritdoc}
*/
public function __construct($config = null, $environment = '') {
// Get settings
if (!empty($config)) {
$this->config = $config;
}
else {
$this->config = $config = \Drupal::service('config.factory')->get('asc_courses.settings');
}
if ($this->debug) echo "\nAPI connector class instantiated\n";
// Get environment if not overridden
if(empty($environment)) {
if ($this->debug) echo "Environment argument was empty. Reading it from configuration.\n";
$environment = $this->config->get('asc_courses.eip_environment');
}
if ($this->debug) echo "Environment: " . $environment . "\n";
// HARD CODED VALUES
if ($environment == 'prod') {
$this->environment = $environment;
$this->base_url = "https://apig.eip.osu.edu/";
$this->consumer_key = $config->get('asc_courses.prod_consumer_key');
$this->consumer_secret = $config->get('asc_courses.prod_consumer_secret');
$this->soip_constant_name = "PANTHEON_SOIP_EIP_PROD";
}
else {
$this->environment = $environment;
$this->base_url = "https://apig-qa.eip.osu.edu/";
$this->consumer_key = $config->get('asc_courses.qa_consumer_key');
$this->consumer_secret = $config->get('asc_courses.qa_consumer_secret');
$this->soip_constant_name = "PANTHEON_SOIP_EIP";
}
if(isset($_ENV['PANTHEON_ENVIRONMENT']) && $_ENV['PANTHEON_ENVIRONMENT'] != "lando") {
if ($this->debug) echo "Pantheon environment: " . $_ENV['PANTHEON_ENVIRONMENT'] . "\n";
$host = parse_url($this->base_url, PHP_URL_HOST);
if ($this->debug) echo "host: $host\n";
$localhost = "127.0.0.1";
$this->resolve_host = array(sprintf("%s:%d:%s", $host, constant($this->soip_constant_name), $localhost));
if ($this->debug) echo "\n resolve_host : " . implode($this->resolve_host) . "\n";
// error_log("resolve_host : " . implode($this->resolve_host));
}
if ($this->debug) echo "\n\n";
}
/**
* Return an access token if possible
*/
public function getAccessToken() {
if($this->debug) echo "============ getAccessToken =============\n";
$now = time();
if($this->debug) echo "Current time: " . date("Y-m-d h:i:s", $now) . "\n";
// First check object variables
if(!empty($this->access_token_data)
&& (($this->access_token_data->expiration - $now) > 30))
{
if($this->debug) echo "Object variables were set and not stale\n";
$this->access_token = $this->access_token_data->access_token;
}
else {
// fetch configuration
$env_access_token_setting = 'asc_courses.' . $this->environment . '_access_token';
if($this->debug) echo "env_access_token_setting: $env_access_token_setting\n";
$access_token_data = unserialize($this->config->get($env_access_token_setting));
if($this->debug) echo "Config access token: " . print_r($access_token_data, true) . "\n";
if(!empty($access_token_data)
&& (($access_token_data->expiration - $now) > 30))
{
if($this->debug) echo "Config token was available and not stale.\n";
$this->access_token_data = $access_token_data;
$this->access_token = $access_token_data->access_token;
}
else {
if($this->debug) echo "Config token was unset or stale.\n";
$access_token_data = $this->fetchAccessToken();
if(!empty($access_token_data->access_token)) {
$this->access_token_data = $access_token_data;
$this->access_token = $access_token_data->access_token;
}
}
}
if (!empty($this->access_token_data)) {
$expirey = $this->access_token_data->expiration;
if($this->debug) {
echo "Token expiration: " . date("Y-m-d h:i:s", $expirey) . "\n";
echo "Expires in " . ($expirey - $now) . " seconds..\n";
echo "\n\n";
}
return $this->access_token;
}
else {
die("\ngetAccessToken() - failed to retrieve access token! X_X\n\n");
}
}
/**
* Fetch a new access token via the API and return it
*/
protected function fetchAccessToken() {
// get an access token
$bearer_auth_plain = $this->consumer_key . ":" . $this->consumer_secret;
if ($this->debug) echo "fetchAccessToken() - Tokens: " . $bearer_auth_plain . "\n";
$bearer_auth = base64_encode($bearer_auth_plain);
if ($this->debug) echo "fetchAccessToken() - Bearer auth: $bearer_auth\n";
$access_token_url = $this->base_url . "token?grant_type=client_credentials";
if ($this->debug) echo "fetchAccessToken() - Access token URL: $access_token_url\n";
$access_token_headers = [
"Accept: application/json",
"Authorization: Basic $bearer_auth",
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $access_token_url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($ch, CURLOPT_POST, true);
// curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_HTTPHEADER, $access_token_headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
if(isset($this->resolve_host)) {
if ($this->debug) echo "fetchAccessToken() - Resolve host set: " . print_r($this->resolve_host, true) . "\n";
curl_setopt($ch, CURLOPT_RESOLVE, $this->resolve_host);
curl_setopt($ch, CURLOPT_PORT, constant($this->soip_constant_name));
}
if($this->debug > 1) {
curl_setopt($ch, CURLOPT_VERBOSE, true);
}
$access_token_start = microtime(true);
$access_token_result = curl_exec($ch);
$access_token_error = curl_error($ch);
curl_close($ch);
$access_token_finish = microtime(true);
$access_token_seconds = $access_token_finish - $access_token_start;
if ($this->debug) echo "fetchAccessToken() - CURL error: " . print_r($access_token_error, true) . "\n";
if(!empty($access_token_error) || empty($access_token_result)) {
echo "\n$access_token_error\n";
die("fetchAccessToken() - Failed to fetch access token from the API!! X_X\n\n");
}
else {
$now = time();
$access_token_data = json_decode($access_token_result);
$access_token_data->expiration = (time() + $access_token_data->expires_in);
$access_token_data->fetched = $now;
if ($this->debug) {
echo "fetchAccessToken() - Access token result: \n";
print_r($access_token_result);
echo "\n";
echo "fetchAccessToken() - Access token in $access_token_seconds seconds\n";
echo "fetchAccessToken() - Now: " . $now . " - " . date("Y-m-d h:i:s", $now) . "\n";
print_r($access_token_data);
}
// Save access token data to config
$env_access_token_setting = 'asc_courses.' . $this->environment . '_access_token';
if($this->debug) echo "fetchAccessToken() - env_access_token_setting: $env_access_token_setting\n";
$config = \Drupal::service('config.factory')->getEditable('asc_courses.settings');
$config->set("asc_courses." . $this->environment . "_access_token", serialize($access_token_data));
$config->save();
return $access_token_data;
}
}
/**
* Fetch and store courses for a single D-Org
*/
public function fetchSubjectCourses($dorg) {
$access_token = $this->getAccessToken();
$course_data_url = $this->base_url . "crseinfo/1.0.0/getCatalogInfo?campus=COL&acad_org=$dorg";
if($this->debug) echo "course data url: $course_data_url\n";
$course_data_headers = [
"Accept: application/json",
"Authorization: Bearer $access_token"
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $course_data_url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
// curl_setopt($ch, CURLOPT_POST, true);
// curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_HTTPHEADER, $course_data_headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
if(isset($this->resolve_host)) {
if ($this->debug) echo "fetchAccessToken() - Resolve host set: " . $this->resolve_host . "\n";
// error_log("fetchAccessToken() - Resolve host set: " . $this->resolve_host);
curl_setopt($ch, CURLOPT_RESOLVE, $this->resolve_host);
curl_setopt($ch, CURLOPT_PORT, constant($this->soip_constant_name));
}
if($this->debug > 1) {
curl_setopt($ch, CURLOPT_VERBOSE, true);
}
$curl_start = microtime(true);
$course_data_result = curl_exec($ch);
$curl_error = curl_error($ch);
curl_close($ch);
$curl_finish = microtime(true);
$curl_seconds = $curl_finish - $curl_start;
if ($this->debug) echo "fetchSubjectCourses() - CURL error: " . print_r($curl_error, true) . "\n";
if(!empty($curl_error) || empty($course_data_result)) {
echo "\n$curl_error\n";
die("fetchSubjectCourses() - Failed to fetch [$dorg] course information from the API!! X_X\n\n");
}
else {
if ($this->debug) echo "Course data length:" . strlen($course_data_result) . "\n";
if ($this->debug) echo "Course data in $curl_seconds seconds\n\n";
$connection = \Drupal::database();
$row = [
'date' => time(),
'dept_org' => $dorg,
'raw_json' => $course_data_result
];
$connection->insert('asc_course_data')->fields($row)->execute();
$course_data = json_decode($course_data_result);
return $course_data;
}
}
}