← All changes | includes/blocks/class-convertkit-block-form-builder.php +146 -20 3.4.2 → 3.4.6 View file →

		@@ -24,8 +24,38 @@
24	24	*/
25	25	public $subscriber_id = false;
26	26
27	27	/**
	28	+ * Holds the WP_Error object if the form submission failed,
	29	+ * to display on screen as a notice.
	30	+ *
	31	+ * @since 3.4.4
	32	+ *
	33	+ * @var bool|WP_Error
	34	+ */
	35	+ public $error = false;
	36	+
	37	+ /**
	38	+ * Holds the number of times this block has been rendered on the Post,
	39	+ * used to identify each block on the page and ensure error notice IDs are unique.
	40	+ *
	41	+ * @since 3.4.4
	42	+ *
	43	+ * @var int
	44	+ */
	45	+ public $render_count = 0;
	46	+
	47	+ /**
	48	+ * Holds the index of the block that was submitted, so the error notice
	49	+ * is only displayed on that block.
	50	+ *
	51	+ * @since 3.4.6
	52	+ *
	53	+ * @var int
	54	+ */
	55	+ public $submitted_block_index = 0;
	56	+
	57	+ /**
28	58	* Constructor
29	59	*
30	60	* @since 3.0.0
31	61	*/
		@@ -76,13 +106,20 @@
76	106	if ( ! array_key_exists( 'post_id', $_REQUEST['convertkit'] ) ) {
77	107	return;
78	108	}
79	109
	110	+ // Store the submitted block's index, so any error is only displayed on that block.
	111	+ if ( array_key_exists( 'block_index', $_REQUEST['convertkit'] ) ) {
	112	+ $this->submitted_block_index = absint( $_REQUEST['convertkit']['block_index'] );
	113	+ }
	114	+
80	115	// Check spam protection.
81	116	$spam_protection = new ConvertKit_Spam_Protection();
82	117
83	118	// Bail if spam protection failed.
84		- if ( is_wp_error( $spam_protection->verify( 'convertkit_form_builder' ) ) ) {
	119	+ $spam_protection_result = $spam_protection->verify( 'convertkit_form_builder' );
	120	+ if ( is_wp_error( $spam_protection_result ) ) {
	121	+ $this->error = $spam_protection_result;
85	122	return;
86	123	}
87	124
88	125	// Sanitize form data.
		@@ -87,8 +124,18 @@
87	124
88	125	// Sanitize form data.
89	126	$form_data = map_deep( wp_unslash( $_REQUEST['convertkit'] ), 'sanitize_text_field' );
90	127
	128	+ // Bail if the email address is invalid. The entry isn't stored, as an invalid
	129	+ // email address is of no use to the creator.
	130	+ if ( ! is_email( $form_data['email'] ) ) {
	131	+ $this->error = new WP_Error(
	132	+ 'convertkit_block_form_builder_invalid_email',
	133	+ __( 'Please enter a valid email address.', 'convertkit' )
	134	+ );
	135	+ return;
	136	+ }
	137	+
91	138	// Build custom fields, if any were specified.
92	139	$custom_fields = array();
93	140	if ( array_key_exists( 'custom_fields', $form_data ) ) {
94	141	$custom_fields = $form_data['custom_fields'];
		@@ -93,12 +140,15 @@
93	140	if ( array_key_exists( 'custom_fields', $form_data ) ) {
94	141	$custom_fields = $form_data['custom_fields'];
95	142	}
96	143
	144	+ // Get First Name, if the Name field was included in the form.
	145	+ $first_name = array_key_exists( 'first_name', $form_data ) ? $form_data['first_name'] : '';
	146	+
97	147	// Get Form, Tag and Sequence IDs, if any were specified.
98		- $form_id = array_key_exists( 'form_id', $form_data ) ? $form_data['form_id'] : false;
99		- $tag_id = array_key_exists( 'tag_id', $form_data ) ? $form_data['tag_id'] : false;
100		- $sequence_id = array_key_exists( 'sequence_id', $form_data ) ? $form_data['sequence_id'] : false;
	148	+ $form_id = array_key_exists( 'form_id', $form_data ) ? absint( $form_data['form_id'] ) : 0;
	149	+ $tag_id = array_key_exists( 'tag_id', $form_data ) ? absint( $form_data['tag_id'] ) : 0;
	150	+ $sequence_id = array_key_exists( 'sequence_id', $form_data ) ? absint( $form_data['sequence_id'] ) : 0;
101	151
102	152	// Initialize classes that will be used.
103	153	$settings = new ConvertKit_Settings();
104	154	$entries = new ConvertKit_Form_Entries();
		@@ -110,9 +160,9 @@
110	160	$entries->upsert(
111	161	array(
112	162	'post_id' => $form_data['post_id'],
113	163	'email' => $form_data['email'],
114		- 'first_name' => $form_data['first_name'],
	164	+ 'first_name' => $first_name,
115	165	'custom_fields' => $custom_fields,
116	166	'form_id' => $form_id,
117	167	'tag_id' => $tag_id,
118	168	'sequence_id' => $sequence_id,
		@@ -120,8 +170,13 @@
120	170	'api_error' => __( 'Plugin Access Token not configured', 'convertkit' ),
121	171	)
122	172	);
123	173	}
	174	+
	175	+ $this->error = new WP_Error(
	176	+ 'convertkit_block_form_builder_no_access_token',
	177	+ __( 'Sorry, we were unable to subscribe you. Please try again later.', 'convertkit' )
	178	+ );
124	179	return;
125	180	}
126	181
127	182	// Initialize the API.
		@@ -136,14 +191,14 @@
136	191
137	192	// Determine the subscriber state.
138	193	// If a Form is specified, mark the subscriber as inactive, so the form's double optin is honored.
139	194	// If a Tag or Sequence is specified, mark the subscriber as active, as there's no double optin for tags or sequences.
140		- $subscriber_state = $form_id !== false ? 'inactive' : 'active';
	195	+ $subscriber_state = $form_id ? 'inactive' : 'active';
141	196
142	197	// Create subscriber.
143	198	$result = $api->create_subscriber(
144	199	sanitize_email( $form_data['email'] ),
145		- array_key_exists( 'first_name', $form_data ) ? $form_data['first_name'] : '',
	200	+ $first_name,
146	201	$subscriber_state,
147	202	$custom_fields
148	203	);
149	204
		@@ -154,9 +209,9 @@
154	209	$entries->upsert(
155	210	array(
156	211	'post_id' => $form_data['post_id'],
157	212	'email' => $form_data['email'],
158		- 'first_name' => $form_data['first_name'],
	213	+ 'first_name' => $first_name,
159	214	'custom_fields' => $custom_fields,
160	215	'form_id' => $form_id,
161	216	'tag_id' => $tag_id,
162	217	'sequence_id' => $sequence_id,
		@@ -164,8 +219,10 @@
164	219	'api_error' => $result->get_error_message(),
165	220	)
166	221	);
167	222	}
	223	+
	224	+ $this->error = $result;
168	225	return;
169	226	}
170	227
171	228	// Store entry.
		@@ -173,9 +230,9 @@
173	230	$entries->upsert(
174	231	array(
175	232	'post_id' => $form_data['post_id'],
176	233	'email' => $form_data['email'],
177		- 'first_name' => $form_data['first_name'],
	234	+ 'first_name' => $first_name,
178	235	'custom_fields' => $custom_fields,
179	236	'form_id' => $form_id,
180	237	'tag_id' => $tag_id,
181	238	'sequence_id' => $sequence_id,
		@@ -183,11 +240,14 @@
183	240	)
184	241	);
185	242	}
186	243
	244	+ // Get the subscriber ID, as $result is overwritten by the form, tag and sequence requests below.
	245	+ $subscriber_id = $result['subscriber']['id'];
	246	+
187	247	// Store the subscriber ID in a cookie.
188	248	$subscriber = new ConvertKit_Subscriber();
189		- $subscriber->set( $result['subscriber']['id'] );
	249	+ $subscriber->set( $subscriber_id );
190	250
191	251	// If a form was specified, add the subscriber to the form.
192	252	if ( $form_id ) {
193	253	// For Legacy Forms, a different endpoint is used.
		@@ -194,14 +254,14 @@
194	254	$forms = new ConvertKit_Resource_Forms();
195	255	if ( $forms->is_legacy( $form_id ) ) {
196	256	$result = $api->add_subscriber_to_legacy_form(
197	257	$form_id,
198		- $result['subscriber']['id']
	258	+ $subscriber_id
199	259	);
200	260	} else {
201	261	$result = $api->add_subscriber_to_form(
202	262	$form_id,
203		- $result['subscriber']['id'],
	263	+ $subscriber_id,
204	264	get_permalink( absint( $form_data['post_id'] ) )
205	265	);
206	266	}
207	267
		@@ -209,9 +269,9 @@
209	269	$entries->upsert(
210	270	array(
211	271	'post_id' => $form_data['post_id'],
212	272	'email' => $form_data['email'],
213		- 'first_name' => $form_data['first_name'],
	273	+ 'first_name' => $first_name,
214	274	'custom_fields' => $custom_fields,
215	275	'form_id' => $form_id,
216	276	'tag_id' => $tag_id,
217	277	'sequence_id' => $sequence_id,
		@@ -223,9 +283,9 @@
223	283	}
224	284
225	285	// If a tag was specified, add the subscriber to the tag.
226	286	if ( $tag_id ) {
227		- $result = $api->tag_subscriber( $tag_id, $result['subscriber']['id'] );
	287	+ $result = $api->tag_subscriber( $tag_id, $subscriber_id );
228	288
229	289	if ( $form_data['store_entries'] ) {
230	290	$entries->upsert(
231	291	array(
		@@ -230,9 +290,9 @@
230	290	$entries->upsert(
231	291	array(
232	292	'post_id' => $form_data['post_id'],
233	293	'email' => $form_data['email'],
234		- 'first_name' => $form_data['first_name'],
	294	+ 'first_name' => $first_name,
235	295	'custom_fields' => $custom_fields,
236	296	'form_id' => $form_id,
237	297	'tag_id' => $tag_id,
238	298	'sequence_id' => $sequence_id,
		@@ -244,9 +304,9 @@
244	304	}
245	305
246	306	// If a sequence was specified, add the subscriber to the sequence.
247	307	if ( $sequence_id ) {
248		- $result = $api->add_subscriber_to_sequence( $sequence_id, $result['subscriber']['id'] );
	308	+ $result = $api->add_subscriber_to_sequence( $sequence_id, $subscriber_id );
249	309
250	310	if ( $form_data['store_entries'] ) {
251	311	$entries->upsert(
252	312	array(
		@@ -251,9 +311,9 @@
251	311	$entries->upsert(
252	312	array(
253	313	'post_id' => $form_data['post_id'],
254	314	'email' => $form_data['email'],
255		- 'first_name' => $form_data['first_name'],
	315	+ 'first_name' => $first_name,
256	316	'custom_fields' => $custom_fields,
257	317	'form_id' => $form_id,
258	318	'tag_id' => $tag_id,
259	319	'sequence_id' => $sequence_id,
		@@ -269,10 +329,10 @@
269	329	if ( array_key_exists( 'redirect', $form_data ) && wp_http_validate_url( sanitize_url( $form_data['redirect'] ) ) ) {
270	330	// Redirect to the URL specified in the form.
271	331	$redirect = sanitize_url( $form_data['redirect'] );
272	332	} else {
273		- // Redirect to the Post the form was displayed on, to show a success message.
274		- $redirect = get_permalink( absint( $form_data['post_id'] ) );
	333	+ // Redirect to the page the form was displayed on, to show a success message.
	334	+ $redirect = $this->get_current_url( absint( $form_data['post_id'] ) );
275	335	}
276	336
277	337	// Redirect.
278	338	wp_redirect( $redirect ); // phpcs:ignore WordPress.Security.SafeRedirect.wp_redirect_wp_redirect
		@@ -675,8 +735,11 @@
675	735
676	736	// Get Post ID.
677	737	$post_id = is_a( $post, 'WP_Post' ) ? $post->ID : 0;
678	738
	739	+ // Increment the render count, used to identify this block on the page.
	740	+ ++$this->render_count;
	741	+
679	742	// Parse attributes, defining fallback defaults if required
680	743	// and moving some attributes (such as Gutenberg's styles), if defined.
681	744	$atts = $this->sanitize_and_declare_atts( $atts );
682	745
		@@ -786,9 +849,9 @@
786	849	}
787	850
788	851	// Create form element.
789	852	$form = $parser->html->createElement( 'form' );
790		- $form->setAttribute( 'action', esc_url( get_permalink( $post_id ) ) );
	853	+ $form->setAttribute( 'action', esc_url( $this->get_current_url( $post_id ) ) );
791	854	$form->setAttribute( 'method', 'post' );
792	855
793	856	// Move form builder div contents into form.
794	857	while ( $block_container->hasChildNodes() ) {
		@@ -794,8 +857,22 @@
794	857	while ( $block_container->hasChildNodes() ) {
795	858	$form->appendChild( $block_container->firstChild ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
796	859	}
797	860
	861	+ // Suffix field IDs and labels with the block's index from the second block onwards,
	862	+ // so IDs are unique when multiple blocks are on the same page.
	863	+ if ( $this->render_count > 1 ) {
	864	+ foreach ( $parser->xpath->query( './/*[starts-with(@id, "kit-form-builder-")]', $form ) as $element ) {
	865	+ $id = $element->getAttribute( 'id' ); // @phpstan-ignore-line
	866	+ $new_id = $id . '-' . $this->render_count;
	867	+ $element->setAttribute( 'id', $new_id ); // @phpstan-ignore-line
	868	+
	869	+ foreach ( $parser->xpath->query( './/label[@for="' . $id . '"]', $form ) as $label ) {
	870	+ $label->setAttribute( 'for', $new_id ); // @phpstan-ignore-line
	871	+ }
	872	+ }
	873	+ }
	874	+
798	875	// Add subscribed message if required.
799	876	if ( $this->subscriber_id ) {
800	877	$subscribed_message = $parser->html->createElement( 'div' );
801	878	$subscribed_message->setAttribute( 'class', 'convertkit-form-builder-subscribed-message' );
		@@ -802,8 +879,35 @@
802	879	$subscribed_message->appendChild( $parser->html->createTextNode( $atts['text_if_subscribed'] ) );
803	880	$form->insertBefore( $subscribed_message, $form->firstChild ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
804	881	}
805	882
	883	+ // Add error notice if the submission failed, and this is the submitted block.
	884	+ // If no block index was submitted (e.g. a cached page from an older version), display it on all blocks.
	885	+ if ( is_wp_error( $this->error ) && ( ! $this->submitted_block_index || $this->submitted_block_index === $this->render_count ) ) {
	886	+ $error_id = 'convertkit-form-builder-error-' . $this->render_count;
	887	+
	888	+ $error_notice = $parser->html->createElement( 'div' );
	889	+ $error_notice->setAttribute( 'id', $error_id );
	890	+ $error_notice->setAttribute( 'class', 'convertkit-form-builder-notice convertkit-form-builder-notice-error' );
	891	+ $error_notice->setAttribute( 'role', 'alert' );
	892	+ $error_notice->setAttribute( 'tabindex', '-1' );
	893	+ $error_notice->appendChild( $parser->html->createTextNode( $this->error->get_error_message() ) );
	894	+ $form->insertBefore( $error_notice, $form->firstChild ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
	895	+
	896	+ // Focus the email field if it caused the error, so screen readers and
	897	+ // browsers move to it. Otherwise focus the notice, as the error isn't
	898	+ // specific to a field.
	899	+ // Query within the form, as it's not yet appended to the document.
	900	+ $email_field = $parser->xpath->query( './/input[@name="convertkit[email]"]', $form )->item( 0 );
	901	+ if ( $email_field && $this->error->get_error_code() === 'convertkit_block_form_builder_invalid_email' ) {
	902	+ $email_field->setAttribute( 'aria-invalid', 'true' ); // @phpstan-ignore-line
	903	+ $email_field->setAttribute( 'aria-describedby', $error_id ); // @phpstan-ignore-line
	904	+ $email_field->setAttribute( 'autofocus', 'autofocus' ); // @phpstan-ignore-line
	905	+ } else {
	906	+ $error_notice->setAttribute( 'autofocus', 'autofocus' );
	907	+ }
	908	+ }
	909	+
806	910	// Add hidden fields.
807	911	$fields = array(
808	912	'convertkit[post_id]' => absint( $post_id ),
809	913	'convertkit[store_entries]' => $atts['store_entries'] ? '1' : '0',
		@@ -810,8 +914,9 @@
810	914	'convertkit[redirect]' => esc_url( $atts['redirect'] ),
811	915	'convertkit[form_id]' => absint( $atts['form_id'] ),
812	916	'convertkit[tag_id]' => absint( $atts['tag_id'] ),
813	917	'convertkit[sequence_id]' => absint( $atts['sequence_id'] ),
	918	+ 'convertkit[block_index]' => absint( $this->render_count ),
814	919	'_wpnonce' => wp_create_nonce( 'convertkit_block_form_builder' ),
815	920	);
816	921	foreach ( $fields as $name => $value ) {
817	922	$hidden = $parser->html->createElement( 'input' );
		@@ -825,8 +930,29 @@
825	930	$block_container->appendChild( $form );
826	931
827	932	// Return modified content.
828	933	return $parser->get_body_html();
	934	+
	935	+ }
	936	+
	937	+ /**
	938	+ * Returns the URL of the page the form is displayed on, so the form submits
	939	+ * back to the same page, falling back to the Post's URL.
	940	+ *
	941	+ * @since 3.4.6
	942	+ *
	943	+ * @param int $post_id Post ID.
	944	+ * @return string
	945	+ */
	946	+ private function get_current_url( $post_id ) {
	947	+
	948	+ // Fallback to the Post's URL if the request URI isn't available.
	949	+ if ( ! isset( $_SERVER['REQUEST_URI'] ) ) {
	950	+ return get_permalink( $post_id );
	951	+ }
	952	+
	953	+ // Remove the subscriber ID, which is only used when visiting a link from a Kit email.
	954	+ return remove_query_arg( 'ck_subscriber_id', esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ) );
829	955
830	956	}
831	957
832	958	}