<h2>File Contents: /home/planet5/public_html/wp-content/plugins/monarch/core/components/api/email/MailChimp.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/public_html/wp-content/plugins/monarch/core/components/api/email/MailChimp.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php

/**
 * Wrapper for MailChimp&#039;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 = &#039;&#039;;

	/**
	 * Use this variable to hold the pattern and update $BASE_URL dynamically when needed
	 */
	public $BASE_URL_PATTERN = &#039;https://@datacenter@.api.mailchimp.com/3.0&#039;;

	/**
	 * @inheritDoc
	 */
	public $http_auth = array(
		&#039;username&#039; =&gt; &#039;-&#039;,
		&#039;password&#039; =&gt; &#039;api_key&#039;,
	);

	/**
	 * @inheritDoc
	 */
	public $name = &#039;MailChimp&#039;;

	/**
	 * @inheritDoc
	 */
	public $slug = &#039;mailchimp&#039;;

	public function __construct( $owner, $account_name, $api_key = &#039;&#039; ) {
		parent::__construct( $owner, $account_name, $api_key );

		if ( ! empty( $this-&gt;data[&#039;api_key&#039;] ) ) {
			$this-&gt;_set_base_url();
		}

		$this-&gt;http_auth[&#039;username&#039;] = $owner;
	}

	protected function _add_note_to_subscriber( $email, $url ) {
		$email = md5( $email );

		$this-&gt;prepare_request( &quot;{$url}/$email/notes&quot;, &#039;POST&#039; );

		$this-&gt;request-&gt;BODY = json_encode( array( &#039;note&#039; =&gt; $this-&gt;SUBSCRIBED_VIA ) );

		$this-&gt;make_remote_request();
	}

	protected function _fetch_custom_fields( $list_id = &#039;&#039;, $list = array() ) {
		$this-&gt;response_data_key = &#039;merge_fields&#039;;

		$this-&gt;prepare_request( &quot;{$this-&gt;BASE_URL}/lists/{$list_id}/merge-fields?count={$this-&gt;COUNT}&quot; );

		$fields = parent::_fetch_custom_fields( $list_id, $list );

		foreach ( $fields as $id =&gt; $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&#039;ll grab the groups and treat them as checkbox fields in our UI.
		$groups = $this-&gt;_fetch_subscriber_list_groups( $list_id );

		return $fields + $groups;
	}

	protected function _fetch_subscriber_list_group_options( $list_id, $group_id ) {
		$this-&gt;prepare_request( &quot;{$this-&gt;BASE_URL}/lists/{$list_id}/interest-categories/{$group_id}/interests?count={$this-&gt;COUNT}&quot; );

		$this-&gt;make_remote_request();

		if ( $this-&gt;response-&gt;ERROR ) {
			et_debug( $this-&gt;get_error_message() );

			return array();
		}

		$data    = $this-&gt;response-&gt;DATA[&#039;interests&#039;];
		$options = array();

		foreach ( $data as $option ) {
			$option = $this-&gt;transform_data_to_our_format( $option, &#039;group_option&#039; );
			$id     = $option[&#039;id&#039;];

			$options[ $id ] = $option[&#039;name&#039;];
		}

		return $options;
	}

	protected function _fetch_subscriber_list_groups( $list_id ) {
		$this-&gt;response_data_key = &#039;categories&#039;;

		$this-&gt;prepare_request( &quot;{$this-&gt;BASE_URL}/lists/{$list_id}/interest-categories?count={$this-&gt;COUNT}&quot; );
		$this-&gt;make_remote_request();

		$groups = array();

		if ( false !== $this-&gt;response_data_key &amp;&amp; empty( $this-&gt;response_data_key ) ) {
			// Let child class handle parsing the response data themselves.
			return $groups;
		}

		if ( $this-&gt;response-&gt;ERROR ) {
			et_debug( $this-&gt;get_error_message() );

			return $groups;
		}

		$data = $this-&gt;response-&gt;DATA[ $this-&gt;response_data_key ];

		foreach ( $data as $group ) {
			$group    = $this-&gt;transform_data_to_our_format( $group, &#039;group&#039; );
			$field_id = $group[&#039;field_id&#039;];
			$type     = $group[&#039;type&#039;];

			if ( &#039;hidden&#039; === $type ) {
				// MailChimp only allows groups of type: &#039;checkbox&#039; to be hidden.
				$group[&#039;type&#039;]   = &#039;checkbox&#039;;
				$group[&#039;hidden&#039;] = true;
			}

			$group[&#039;is_group&#039;] = true;
			$group[&#039;options&#039;]  = $this-&gt;_fetch_subscriber_list_group_options( $list_id, $field_id );
			$group[&#039;type&#039;]     = self::$_-&gt;array_get( $this-&gt;data_keys, &quot;custom_field_type.{$type}&quot;, &#039;text&#039; );

			$groups[ $field_id ] = $group;
		}

		return $groups;
	}

	protected function _process_custom_fields( $args ) {
		if ( ! isset( $args[&#039;custom_fields&#039;] ) ) {
			return $args;
		}

		$fields = $args[&#039;custom_fields&#039;];
		$list_id = self::$_-&gt;array_get( $args, &#039;list_id&#039;, &#039;&#039; );

		unset( $args[&#039;custom_fields&#039;] );
		unset( $args[&#039;list_id&#039;] );

		$custom_fields_data = self::$_-&gt;array_get( $this-&gt;data, &quot;lists.{$list_id}.custom_fields&quot;, array() );

		foreach ( $fields as $field_id =&gt; $value ) {
			$is_group = self::$_-&gt;array_get( $custom_fields_data, &quot;{$field_id}.is_group&quot;, false );

			if ( is_array( $value ) &amp;&amp; $value ) {
				foreach ( $value as $id =&gt; $field_value ) {
					if ( $is_group ) {
						// If it is a group custom field, set as `interests` and don&#039;t process the `merge_fields`
						self::$_-&gt;array_set( $args, &quot;interests.{$id}&quot;, 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&#039;t exist for backward compatibility.
			$custom_field_tag = self::$_-&gt;array_get( $custom_fields_data, &quot;{$field_id}.field_tag&quot;, &quot;MMERGE{$field_id}&quot; );

			// Need to strips existing slash chars.
			self::$_-&gt;array_set( $args, &quot;merge_fields.{$custom_field_tag}&quot;, stripslashes( $value ) );
		}

		return $args;
	}

	protected function _set_base_url() {
		$api_key_pieces = explode( &#039;-&#039;, $this-&gt;data[&#039;api_key&#039;] );
		$datacenter     = empty( $api_key_pieces[1] ) ? &#039;&#039; : $api_key_pieces[1];
		$this-&gt;BASE_URL = str_replace( &#039;@datacenter@&#039;, $datacenter, $this-&gt;BASE_URL_PATTERN );
	}

	/**
	 * @inheritDoc
	 */
	public function fetch_subscriber_lists() {
		if ( empty( $this-&gt;data[&#039;api_key&#039;] ) ) {
			return $this-&gt;API_KEY_REQUIRED;
		}

		$this-&gt;_set_base_url();

		/**
		 * The maximum number of subscriber lists to request from MailChimp&#039;s API.
		 *
		 * @since 2.0.0
		 *
		 * @param int $max_lists
		 */
		$max_lists = (int) apply_filters( &#039;et_core_api_email_mailchimp_max_lists&#039;, 250 );

		$url = &quot;{$this-&gt;BASE_URL}/lists?count={$max_lists}&amp;fields=lists.name,lists.id,lists.stats,lists.double_optin&quot;;

		$this-&gt;prepare_request( $url );

		$this-&gt;response_data_key = &#039;lists&#039;;

		$result = parent::fetch_subscriber_lists();

		return $result;
	}

	/**
	 * @inheritDoc
	 */
	public function get_account_fields() {
		return array(
			&#039;api_key&#039; =&gt; array(
				&#039;label&#039; =&gt; esc_html__( &#039;API Key&#039;, &#039;et_core&#039; ),
			),
		);
	}

	/**
	 * @inheritDoc
	 */
	public function get_data_keymap( $keymap = array() ) {
		$keymap = array(
			&#039;list&#039;              =&gt; array(
				&#039;list_id&#039;           =&gt; &#039;id&#039;,
				&#039;name&#039;              =&gt; &#039;name&#039;,
				&#039;double_optin&#039;      =&gt; &#039;double_optin&#039;,
				&#039;subscribers_count&#039; =&gt; &#039;stats.member_count&#039;,
			),
			&#039;subscriber&#039;        =&gt; array(
				&#039;email&#039;         =&gt; &#039;email_address&#039;,
				&#039;name&#039;          =&gt; &#039;merge_fields.FNAME&#039;,
				&#039;last_name&#039;     =&gt; &#039;merge_fields.LNAME&#039;,
				&#039;custom_fields&#039; =&gt; &#039;custom_fields&#039;,
			),
			&#039;error&#039;             =&gt; array(
				&#039;error_message&#039; =&gt; &#039;detail&#039;,
			),
			&#039;custom_field&#039;      =&gt; array(
				&#039;field_id&#039;  =&gt; &#039;merge_id&#039;,
				&#039;field_tag&#039; =&gt; &#039;tag&#039;,
				&#039;name&#039;      =&gt; &#039;name&#039;,
				&#039;type&#039;      =&gt; &#039;type&#039;,
				&#039;hidden&#039;    =&gt; &#039;!public&#039;,
				&#039;options&#039;   =&gt; &#039;options.choices&#039;,
			),
			&#039;custom_field_type&#039; =&gt; array(
				// Us &lt;=&gt; Them
				&#039;radio&#039;      =&gt; &#039;radio&#039;,
				// Us =&gt; Them
				&#039;input&#039;      =&gt; &#039;text&#039;,
				&#039;select&#039;     =&gt; &#039;dropdown&#039;,
				&#039;checkbox&#039;   =&gt; &#039;checkboxes&#039;,
				// Them =&gt; Us
				&#039;text&#039;       =&gt; &#039;input&#039;,
				&#039;dropdown&#039;   =&gt; &#039;select&#039;,
				&#039;checkboxes&#039; =&gt; &#039;checkbox&#039;,
			),
			&#039;group&#039;             =&gt; array(
				&#039;field_id&#039; =&gt; &#039;id&#039;,
				&#039;name&#039;     =&gt; &#039;title&#039;,
				&#039;type&#039;     =&gt; &#039;type&#039;,
			),
			&#039;group_option&#039;      =&gt; array(
				&#039;id&#039;   =&gt; &#039;id&#039;,
				&#039;name&#039; =&gt; &#039;name&#039;,
			),
		);

		return parent::get_data_keymap( $keymap );
	}

	public function get_subscriber( $list_id, $email ) {
		$hash = md5( strtolower( $email ) );
		$this-&gt;prepare_request( implode( &#039;/&#039;, array( $this-&gt;BASE_URL, &#039;lists&#039;, $list_id, &#039;members&#039;, $hash ) ) );
		$this-&gt;make_remote_request();

		return $this-&gt;response-&gt;STATUS_CODE !== 200 ? null : $this-&gt;response-&gt;DATA;
	}

	/**
	 * @inheritDoc
	 */
	public function subscribe( $args, $url = &#039;&#039; ) {
		$list_id   = $args[&#039;list_id&#039;];
		$args      = $this-&gt;transform_data_to_provider_format( $args, &#039;subscriber&#039; );
		$url       = &quot;{$this-&gt;BASE_URL}/lists/{$list_id}/members&quot;;
		$email     = $args[&#039;email_address&#039;];
		$err       = esc_html__( &#039;An error occurred, please try later.&#039;, &#039;et_core&#039; );
		$dbl_optin = self::$_-&gt;array_get( $this-&gt;data, &quot;lists.{$list_id}.double_optin&quot;, true );

		$ip_address = &#039;true&#039; === self::$_-&gt;array_get( $args, &#039;ip_address&#039;, &#039;true&#039; ) ? et_core_get_ip_address() : &#039;0.0.0.0&#039;;

		$args[&#039;ip_signup&#039;] = $ip_address;
		$args[&#039;status&#039;]    = $dbl_optin ? &#039;pending&#039; : &#039;subscribed&#039;;
		$args[&#039;list_id&#039;]   = $list_id;

		$args = $this-&gt;_process_custom_fields( $args );

		$this-&gt;prepare_request( $url, &#039;POST&#039;, false, $args, true );
		$result = parent::subscribe( $args, $url );

		if ( false !== stripos( $result, &#039;already a list member&#039; ) ) {
			$result = $err;

			if ( $user = $this-&gt;get_subscriber( $list_id, $email ) ) {
				if ( &#039;subscribed&#039; === $user[&#039;status&#039;] ) {
					$result = &#039;success&#039;;
				} else {
					$this-&gt;prepare_request( implode( &#039;/&#039;, array( $url, $user[&#039;id&#039;] ) ), &#039;PUT&#039;, false, $args, true );

					$result = parent::subscribe( $args, $url );
				}
			}
		}

		if ( &#039;success&#039; === $result ) {
			$this-&gt;_add_note_to_subscriber( $email, $url );
		} else if ( false !== stripos( $result, &#039;has signed up to a lot of lists &#039; ) ) {
			// return message which can be translated. Generic Mailchimp messages are not translatable.
			$result = esc_html__( &#039;You have signed up to a lot of lists very recently, please try again later&#039;, &#039;et_core&#039; );
		} else {
			$result = $err;
		}

		return $result;
	}
}
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