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divi/core/components/api/email/MailChimp.php

346 lines
9.4 KiB
PHP

<?php
/**
* Wrapper for MailChimp's API.
*
* @since 1.1.0
*
* @package ET\Core\API\Email
*/
class ET_Core_API_Email_MailChimp extends ET_Core_API_Email_Provider {
/**
* @inheritDoc
*/
public $BASE_URL = '';
/**
* Use this variable to hold the pattern and update $BASE_URL dynamically when needed
*/
public $BASE_URL_PATTERN = 'https://@datacenter@.api.mailchimp.com/3.0';
/**
* @inheritDoc
*/
public $http_auth = array(
'username' => '-',
'password' => 'api_key',
);
/**
* @inheritDoc
*/
public $name = 'MailChimp';
/**
* @inheritDoc
*/
public $slug = 'mailchimp';
public function __construct( $owner, $account_name, $api_key = '' ) {
parent::__construct( $owner, $account_name, $api_key );
if ( ! empty( $this->data['api_key'] ) ) {
$this->_set_base_url();
}
$this->http_auth['username'] = $owner;
}
protected function _add_note_to_subscriber( $email, $url ) {
$email = md5( $email );
$this->prepare_request( "{$url}/$email/notes", 'POST' );
$this->request->BODY = json_encode( array( 'note' => $this->SUBSCRIBED_VIA ) );
$this->make_remote_request();
}
protected function _fetch_custom_fields( $list_id = '', $list = array() ) {
$this->response_data_key = 'merge_fields';
$this->prepare_request( "{$this->BASE_URL}/lists/{$list_id}/merge-fields?count={$this->COUNT}" );
$fields = parent::_fetch_custom_fields( $list_id, $list );
foreach ( $fields as $id => $field ) {
if ( in_array( $id, array( 1, 2 ) ) ) {
unset( $fields[ $id ] );
}
}
// MailChimp is weird in that they treat checkbox fields as an entirely different concept in their API (Groups)
// We'll grab the groups and treat them as checkbox fields in our UI.
$groups = $this->_fetch_subscriber_list_groups( $list_id );
return $fields + $groups;
}
protected function _fetch_subscriber_list_group_options( $list_id, $group_id ) {
$this->prepare_request( "{$this->BASE_URL}/lists/{$list_id}/interest-categories/{$group_id}/interests?count={$this->COUNT}" );
$this->make_remote_request();
if ( $this->response->ERROR ) {
et_debug( $this->get_error_message() );
return array();
}
$data = $this->response->DATA['interests'];
$options = array();
foreach ( $data as $option ) {
$option = $this->transform_data_to_our_format( $option, 'group_option' );
$id = $option['id'];
$options[ $id ] = $option['name'];
}
return $options;
}
protected function _fetch_subscriber_list_groups( $list_id ) {
$this->response_data_key = 'categories';
$this->prepare_request( "{$this->BASE_URL}/lists/{$list_id}/interest-categories?count={$this->COUNT}" );
$this->make_remote_request();
$groups = array();
if ( false !== $this->response_data_key && empty( $this->response_data_key ) ) {
// Let child class handle parsing the response data themselves.
return $groups;
}
if ( $this->response->ERROR ) {
et_debug( $this->get_error_message() );
return $groups;
}
$data = $this->response->DATA[ $this->response_data_key ];
foreach ( $data as $group ) {
$group = $this->transform_data_to_our_format( $group, 'group' );
$field_id = $group['field_id'];
$type = $group['type'];
if ( 'hidden' === $type ) {
// MailChimp only allows groups of type: 'checkbox' to be hidden.
$group['type'] = 'checkbox';
$group['hidden'] = true;
}
$group['is_group'] = true;
$group['options'] = $this->_fetch_subscriber_list_group_options( $list_id, $field_id );
$group['type'] = self::$_->array_get( $this->data_keys, "custom_field_type.{$type}", 'text' );
$groups[ $field_id ] = $group;
}
return $groups;
}
protected function _process_custom_fields( $args ) {
if ( ! isset( $args['custom_fields'] ) ) {
return $args;
}
$fields = $args['custom_fields'];
$list_id = self::$_->array_get( $args, 'list_id', '' );
unset( $args['custom_fields'] );
unset( $args['list_id'] );
$custom_fields_data = self::$_->array_get( $this->data, "lists.{$list_id}.custom_fields", array() );
foreach ( $fields as $field_id => $value ) {
$is_group = self::$_->array_get( $custom_fields_data, "{$field_id}.is_group", false );
if ( is_array( $value ) && $value ) {
foreach ( $value as $id => $field_value ) {
if ( $is_group ) {
// If it is a group custom field, set as `interests` and don't process the `merge_fields`
self::$_->array_set( $args, "interests.{$id}", true );
$field_id = false;
} else {
$value = $field_value;
}
}
}
if ( false === $field_id ) {
continue;
}
// In previous version of Mailchimp implementation we only supported default field tag, but it can be customized and our code fails.
// Added `field_tag` attribute which is actual field tag. Fallback to default field tag if `field_tag` doesn't exist for backward compatibility.
$custom_field_tag = self::$_->array_get( $custom_fields_data, "{$field_id}.field_tag", "MMERGE{$field_id}" );
// Need to strips existing slash chars.
self::$_->array_set( $args, "merge_fields.{$custom_field_tag}", stripslashes( $value ) );
}
return $args;
}
protected function _set_base_url() {
$api_key_pieces = explode( '-', $this->data['api_key'] );
$datacenter = empty( $api_key_pieces[1] ) ? '' : $api_key_pieces[1];
$this->BASE_URL = str_replace( '@datacenter@', $datacenter, $this->BASE_URL_PATTERN );
}
/**
* @inheritDoc
*/
public function fetch_subscriber_lists() {
if ( empty( $this->data['api_key'] ) ) {
return $this->API_KEY_REQUIRED;
}
$this->_set_base_url();
/**
* The maximum number of subscriber lists to request from MailChimp's API.
*
* @since 2.0.0
*
* @param int $max_lists
*/
$max_lists = (int) apply_filters( 'et_core_api_email_mailchimp_max_lists', 250 );
$url = "{$this->BASE_URL}/lists?count={$max_lists}&fields=lists.name,lists.id,lists.stats,lists.double_optin";
$this->prepare_request( $url );
$this->response_data_key = 'lists';
$result = parent::fetch_subscriber_lists();
return $result;
}
/**
* @inheritDoc
*/
public function get_account_fields() {
return array(
'api_key' => array(
'label' => esc_html__( 'API Key', 'et_core' ),
),
);
}
/**
* @inheritDoc
*/
public function get_data_keymap( $keymap = array() ) {
$keymap = array(
'list' => array(
'list_id' => 'id',
'name' => 'name',
'double_optin' => 'double_optin',
'subscribers_count' => 'stats.member_count',
),
'subscriber' => array(
'email' => 'email_address',
'name' => 'merge_fields.FNAME',
'last_name' => 'merge_fields.LNAME',
'custom_fields' => 'custom_fields',
),
'error' => array(
'error_message' => 'detail',
),
'custom_field' => array(
'field_id' => 'merge_id',
'field_tag' => 'tag',
'name' => 'name',
'type' => 'type',
'hidden' => '!public',
'options' => 'options.choices',
),
'custom_field_type' => array(
// Us <=> Them
'radio' => 'radio',
// Us => Them
'input' => 'text',
'select' => 'dropdown',
'checkbox' => 'checkboxes',
// Them => Us
'text' => 'input',
'dropdown' => 'select',
'checkboxes' => 'checkbox',
),
'group' => array(
'field_id' => 'id',
'name' => 'title',
'type' => 'type',
),
'group_option' => array(
'id' => 'id',
'name' => 'name',
),
);
return parent::get_data_keymap( $keymap );
}
public function get_subscriber( $list_id, $email ) {
$hash = md5( strtolower( $email ) );
$this->prepare_request( implode( '/', array( $this->BASE_URL, 'lists', $list_id, 'members', $hash ) ) );
$this->make_remote_request();
return $this->response->STATUS_CODE !== 200 ? null : $this->response->DATA;
}
/**
* @inheritDoc
*/
public function subscribe( $args, $url = '' ) {
$list_id = $args['list_id'];
$args = $this->transform_data_to_provider_format( $args, 'subscriber' );
$url = "{$this->BASE_URL}/lists/{$list_id}/members";
$email = $args['email_address'];
$err = esc_html__( 'An error occurred, please try later.', 'et_core' );
$dbl_optin = self::$_->array_get( $this->data, "lists.{$list_id}.double_optin", true );
$ip_address = 'true' === self::$_->array_get( $args, 'ip_address', 'true' ) ? et_core_get_ip_address() : '0.0.0.0';
$args['ip_signup'] = $ip_address;
$args['status'] = $dbl_optin ? 'pending' : 'subscribed';
$args['list_id'] = $list_id;
$args = $this->_process_custom_fields( $args );
$this->prepare_request( $url, 'POST', false, $args, true );
$result = parent::subscribe( $args, $url );
if ( false !== stripos( $result, 'already a list member' ) ) {
$result = $err;
if ( $user = $this->get_subscriber( $list_id, $email ) ) {
if ( 'subscribed' === $user['status'] ) {
$result = 'success';
} else {
$this->prepare_request( implode( '/', array( $url, $user['id'] ) ), 'PUT', false, $args, true );
$result = parent::subscribe( $args, $url );
}
}
}
if ( 'success' === $result ) {
$this->_add_note_to_subscriber( $email, $url );
} else if ( false !== stripos( $result, 'has signed up to a lot of lists ' ) ) {
// return message which can be translated. Generic Mailchimp messages are not translatable.
$result = esc_html__( 'You have signed up to a lot of lists very recently, please try again later', 'et_core' );
} else {
$result = $err;
}
return $result;
}
}