| 1 |
<?php |
| 2 |
/** |
| 3 |
* ConvertKit PI class |
| 4 |
* |
| 5 |
* @package ConvertKit |
| 6 |
* @author ConvertKit |
| 7 |
*/ |
| 8 |
|
| 9 |
/** |
| 10 |
* ConvertKit_API Class |
| 11 |
* Establishes API connection to ConvertKit App |
| 12 |
*/ |
| 13 |
class ConvertKit_API { |
| 14 |
|
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/** |
| 16 |
* ConvertKit API Key |
| 17 |
* |
| 18 |
* @var string |
| 19 |
*/ |
| 20 |
protected $api_key; |
| 21 |
|
| 22 |
/** |
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* ConvertKit API Secret |
| 24 |
* |
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* @var string |
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*/ |
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protected $api_secret; |
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|
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/** |
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* Save debug data to log |
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* |
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* @var string |
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*/ |
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protected $debug; |
| 35 |
|
| 36 |
/** |
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* Version of ConvertKit API |
| 38 |
* |
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* @var string |
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*/ |
| 41 |
protected $api_version = 'v3'; |
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|
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/** |
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* ConvertKit API URL |
| 45 |
* |
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* @var string |
| 47 |
*/ |
| 48 |
protected $api_url_base = 'https://api.convertkit.com/'; |
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|
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/** |
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* API resources |
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* |
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* @var array |
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*/ |
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protected $resources = array(); |
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|
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/** |
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* Additional markup |
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* |
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* @var array |
| 61 |
*/ |
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protected $markup = array(); |
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|
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/** |
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* Constructor for ConvertKitAPI instance |
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* |
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* @param string $api_key ConvertKit API Key. |
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* @param string $api_secret ConvertKit API Secret. |
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* @param string $debug Save data to log. |
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*/ |
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public function __construct( $api_key, $api_secret, $debug ) { |
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$this->api_key = $api_key; |
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$this->api_secret = $api_secret; |
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$this->debug = $debug; |
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} |
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|
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/** |
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* Adds a tag to a subscriber |
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* |
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* @param int $tag Tag ID |
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* @param array $options Array of user data |
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* @return object |
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*/ |
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public function add_tag( $tag, $options ) { |
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$request = $this->api_version . sprintf( '/tags/%s/subscribe', $tag ); |
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|
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$args = array( |
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'api_key' => $this->api_key, |
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'email' => $options['email'], |
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); |
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|
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return $this->make_request( $request, 'POST', $args ); |
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} |
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|
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/** |
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* Gets a resource index |
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* |
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* GET /{$resource}/ |
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* |
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* @param string $resource Resource type. |
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* @return object API response |
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*/ |
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public function get_resources( $resource ) { |
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|
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if ( ! array_key_exists( $resource, $this->resources ) ) { |
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|
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if ( 'landing_pages' === $resource ) { |
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$api_response = $this->_get_api_response( 'forms' ); |
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} else { |
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$api_response = $this->_get_api_response( $resource ); |
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} |
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|
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if ( is_null( $api_response ) || is_wp_error( $api_response ) || isset( $api_response['error'] ) || isset( $api_response['error_message'] ) ) { |
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$this->resources[ $resource ] = array( |
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array( |
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'id' => '-2', |
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'name' => 'Error contacting API', |
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), |
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); |
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} else { |
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$_resource = array(); |
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|
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if ( 'forms' === $resource ) { |
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$response = isset( $api_response['forms'] ) ? $api_response['forms'] : array(); |
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foreach ( $response as $form ) { |
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if ( isset( $form['archived'] ) && $form['archived'] ) { |
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continue; |
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} |
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$_resource[] = $form; |
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} |
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} elseif ( 'landing_pages' === $resource ) { |
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|
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$response = isset( $api_response['forms'] ) ? $api_response['forms'] : array(); |
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foreach ( $response as $landing_page ) { |
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if ( 'hosted' === $landing_page['type'] ) { |
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if ( isset( $landing_page['archived'] ) && $landing_page['archived'] ) { |
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continue; |
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} |
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$_resource[] = $landing_page; |
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} |
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} |
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} elseif ( 'subscription_forms' === $resource ) { |
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foreach ( $api_response as $mapping ) { |
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if ( isset( $mapping['archived'] ) && $mapping['archived'] ) { |
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continue; |
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} |
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$_resource[ $mapping['id'] ] = $mapping['form_id']; |
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} |
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} elseif ( 'tags' === $resource ) { |
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$response = isset( $api_response['tags'] ) ? $api_response['tags'] : array(); |
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foreach ( $response as $tag ) { |
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$_resource[] = $tag; |
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} |
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} |
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|
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$this->resources[ $resource ] = $_resource; |
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} // End if(). |
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} // End if(). |
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|
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return $this->resources[ $resource ]; |
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} |
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|
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/** |
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* Adds a subscriber to a form. |
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* |
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* @param string $form_id Form ID. |
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* @param array $options Array of user data. |
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*/ |
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public function form_subscribe( $form_id, $options ) { |
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$request = $this->api_version . sprintf( '/forms/%s/subscribe', $form_id ); |
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|
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$args = array( |
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'api_key' => $this->api_key, |
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'email' => $options['email'], |
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'name' => $options['name'], |
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); |
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|
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$this->make_request( $request, 'POST', $args ); |
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} |
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|
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/** |
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* Remove subscription from a form |
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* |
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* @param array $options Array of user data. |
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*/ |
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public function form_unsubscribe( $options ) { |
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$request = $this->api_version . '/unsubscribe'; |
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|
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$args = array( |
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'api_secret' => $this->api_secret, |
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'email' => $options['email'], |
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); |
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|
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$this->make_request( $request, 'PUT', $args ); |
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} |
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|
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/** |
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* Get markup from ConvertKit for the provided $url |
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* |
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* @param string $url URL of API action. |
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* @return string |
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*/ |
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public function get_resource( $url ) { |
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$resource = ''; |
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|
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if ( ! empty( $url ) && isset( $this->markup[ $url ] ) ) { |
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$resource = $this->markup[ $url ]; |
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} elseif ( ! empty( $url ) ) { |
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$this->log( 'API Request (get_resource): ' . $url ); |
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|
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$response = wp_remote_get( |
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$url, |
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array( |
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'timeout' => 10, |
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'Accept-Encoding' => 'gzip', |
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) |
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); |
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|
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if ( ! is_wp_error( $response ) ) { |
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|
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if ( ! function_exists( 'str_get_html' ) ) { |
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require_once( dirname( __FILE__ ) . '/../vendor/simple-html-dom/simple-html-dom.php' ); |
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} |
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|
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if ( ! function_exists( 'url_to_absolute' ) ) { |
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require_once( dirname( __FILE__ ) . '/../vendor/url-to-absolute/url-to-absolute.php' ); |
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} |
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|
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// Maybe inflate response body. |
| 230 |
// @see https://wordpress.stackexchange.com/questions/10088/how-do-i-troubleshoot-responses-with-wp-http-api |
| 231 |
$inflate = @gzinflate( $response['body'] ); |
| 232 |
if( false !== $inflate ) { |
| 233 |
$response['body'] = $inflate; |
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} |
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|
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$body = wp_remote_retrieve_body( $response ); |
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|
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$html = str_get_html( $body ); |
| 239 |
foreach ( $html->find( 'a, link' ) as $element ) { |
| 240 |
if ( isset( $element->href ) ) { |
| 241 |
$element->href = url_to_absolute( $url, $element->href ); |
| 242 |
} |
| 243 |
} |
| 244 |
|
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foreach ( $html->find( 'img, script' ) as $element ) { |
| 246 |
if ( isset( $element->src ) ) { |
| 247 |
$element->src = url_to_absolute( $url, $element->src ); |
| 248 |
} |
| 249 |
} |
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|
| 251 |
foreach ( $html->find( 'form' ) as $element ) { |
| 252 |
if ( isset( $element->action ) ) { |
| 253 |
$element->action = url_to_absolute( $url, $element->action ); |
| 254 |
} else { |
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$element->action = $url; |
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} |
| 257 |
} |
| 258 |
|
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// Check `status_code` for 200, otherwise log error. |
| 260 |
if ( 200 === $response['response']['code'] ) { |
| 261 |
$resource = $html->save(); |
| 262 |
$this->markup[ $url ] = $resource; |
| 263 |
} else { |
| 264 |
$this->log( 'Status Code (' . $response['response']['code'] . ') for URL (' . $url . '): ' . $html->save() ); |
| 265 |
} |
| 266 |
} else { |
| 267 |
$this->log( 'API Response was WP_Error (get_resource): ' . |
| 268 |
'Code: ' . $response->get_error_code() . ' ' . |
| 269 |
'Message: ' . $response->get_error_message() ); |
| 270 |
} // End if(). |
| 271 |
} // End if(). |
| 272 |
|
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return $resource; |
| 274 |
} |
| 275 |
|
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/** |
| 277 |
* Do a remote request. |
| 278 |
* |
| 279 |
* @param string $path Part of URL. |
| 280 |
* @return array |
| 281 |
*/ |
| 282 |
private function _get_api_response( $path = '' ) { |
| 283 |
|
| 284 |
$args = array( |
| 285 |
'api_key' => $this->api_key, |
| 286 |
); |
| 287 |
$api_path = $this->api_url_base . $this->api_version; |
| 288 |
$url = add_query_arg( $args, path_join( $api_path, $path ) ); |
| 289 |
|
| 290 |
$this->log( 'API Request (_get_api_response): ' . $url ); |
| 291 |
|
| 292 |
$data = get_transient( 'convertkit_get_api_response_' . $path ); |
| 293 |
|
| 294 |
if ( ! $data ) { |
| 295 |
|
| 296 |
$response = wp_remote_get( |
| 297 |
$url, |
| 298 |
array( |
| 299 |
'timeout' => 10, |
| 300 |
'Accept-Encoding' => 'gzip', |
| 301 |
'sslverify' => false, |
| 302 |
) |
| 303 |
); |
| 304 |
|
| 305 |
if ( is_wp_error( $response ) ) { |
| 306 |
$this->log( 'Error: ' . $response->get_error_message() ); |
| 307 |
|
| 308 |
return array( |
| 309 |
'error' => $response->get_error_message(), |
| 310 |
); |
| 311 |
} else { |
| 312 |
|
| 313 |
// Maybe inflate response body. |
| 314 |
// @see https://wordpress.stackexchange.com/questions/10088/how-do-i-troubleshoot-responses-with-wp-http-api |
| 315 |
$inflate = @gzinflate( $response['body'] ); |
| 316 |
if( false !== $inflate ) { |
| 317 |
$response['body'] = $inflate; |
| 318 |
} |
| 319 |
|
| 320 |
$body = wp_remote_retrieve_body( $response ); |
| 321 |
$data = json_decode( $body, true ); |
| 322 |
} |
| 323 |
|
| 324 |
set_transient( 'convertkit_get_api_response_' . $path , $data, 300 ); |
| 325 |
|
| 326 |
$this->log( 'API Response (_get_api_response): ' . $body ); |
| 327 |
} else { |
| 328 |
$this->log( 'Transient Response ' . $path . ' (_get_api_response)' ); |
| 329 |
} |
| 330 |
|
| 331 |
return $data; |
| 332 |
} |
| 333 |
|
| 334 |
/** |
| 335 |
* Make a request to the ConvertKit API |
| 336 |
* |
| 337 |
* @param string $request Request string. |
| 338 |
* @param string $method HTTP Method. |
| 339 |
* @param array $args Request arguments. |
| 340 |
* @return object Response object |
| 341 |
*/ |
| 342 |
private function make_request( $request, $method, $args = array() ) { |
| 343 |
|
| 344 |
$this->log( 'API Request (make_request): ' . $request . ' Args: ' . wp_json_encode( $args ) ); |
| 345 |
|
| 346 |
$url = $this->api_url_base . $request; |
| 347 |
|
| 348 |
$headers = array( |
| 349 |
'Content-Type' => 'application/json; charset=utf-8', |
| 350 |
); |
| 351 |
|
| 352 |
$settings = array( |
| 353 |
'headers' => $headers, |
| 354 |
'method' => $method, |
| 355 |
'body' => wp_json_encode( $args ), |
| 356 |
); |
| 357 |
|
| 358 |
$result = wp_remote_request( $url, $settings ); |
| 359 |
|
| 360 |
if ( is_wp_error( $result ) ) { |
| 361 |
$this->log( 'API Response (make_request): WPError: ' . $result->get_error_message() ); |
| 362 |
} elseif ( isset( $result['response']['code'] ) && '200' === $result['response']['code'] ) { |
| 363 |
if ( isset( $result['body'] ) ) { |
| 364 |
$this->log( 'API Response (make_request): ' . $result['body'] ); |
| 365 |
} else { |
| 366 |
$this->log( 'API Response (make_request): Response code 200, but body is not set.' ); |
| 367 |
} |
| 368 |
} else { |
| 369 |
$this->log( 'API Response (make_request): Result code: ' . $result['response']['code'] . ' ' . $result['response']['message'] ); |
| 370 |
} |
| 371 |
|
| 372 |
} |
| 373 |
|
| 374 |
/** |
| 375 |
* Output data to log file |
| 376 |
* |
| 377 |
* @param string $message String to add to log. |
| 378 |
*/ |
| 379 |
public function log( $message ) { |
| 380 |
|
| 381 |
if ( 'on' === $this->debug ) { |
| 382 |
$dir = dirname( __FILE__ ); |
| 383 |
$handle = fopen( trailingslashit( $dir ) . 'log.txt', 'a' ); |
| 384 |
if ( $handle ) { |
| 385 |
$time = date_i18n( 'm-d-Y @ H:i:s -' ); |
| 386 |
fwrite( $handle, $time . ' ' . $message . "\n" ); |
| 387 |
fclose( $handle ); |
| 388 |
} |
| 389 |
} |
| 390 |
|
| 391 |
} |
| 392 |
|
| 393 |
} |
| 394 |
|
