orcid.php

<?php require_once('connect.php');

class orcid_api {
	public string $client_id;
	private string $secret;
	public string $auth_url;
	public string $token_url = "https://orcid.org/oauth/token";
	public string $data_url;
	public string $orcid;
	private string $access_token;

	function __construct() {
		foreach (orcidvars() as $key => $var) $this->{$key} = $var;
		$this->auth_url = "https://orcid.org/oauth/authorize?client_id=".$this->client_id."&response_type=code&scope=/authenticate";
	}

	function auth_url(string $redirect): string { return "{$this->auth_url}&redirect_uri={$redirect}"; }

	function get_auth_token(string $code) {
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $this->token_url);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(['code' => $code, 'client_id' => $this->client_id, 'client_secret' => $this->secret, 'grant_type' => 'authorization_code']));
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		$response = curl_exec($ch);
		curl_close($ch);
		$response = json_decode($response);
		if (!isset($response->error)) {
			$this->orcid = $response->orcid;
			$this->data_url = "https://pub.orcid.org/v3.0/{$this->orcid}/record";
			$this->access_token = $response->access_token;
		}
		return $response;
	}

	function get_record() {
		if (!$this->orcid) return false;

		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $this->data_url);
		curl_setopt($ch, CURLOPT_HTTPHEADER, [
			"Authorization: Bearer {$this->access_token}",
			"Content-Type: application/orcid+json"
		]);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		$response = curl_exec($ch);
		curl_close($ch);

		return json_decode($response);
	}
}