'_affiliate_links_target',
'title' => 'Link Target URL',
'description' => 'Enter your affiliate URL or make use of wecantrack\'s affiliate link generator and simply add the desired landing page URL (eg. https://www.nike.com) and tick the \'Generate affiliate link\' setting below.',
'type' => 'url',
'required' => 'required',
'sanitize_callback' => 'esc_url_raw',
),
array(
'name' => '_affiliate_links_generate_link',
'title' => 'Generate Affiliate Link',
'description' => 'More information about the link generator here .',
'global_name' => 'generate_link',
'type' => 'checkbox',
'allow_html' => true,
),
array(
'name' => '_affiliate_links_target_two',
'title' => 'Second Target URL',
'description' => 'Enter second Target URL',
'type' => 'url',
'sanitize_callback' => 'esc_url_raw',
),
array(
'name' => '_affiliate_links_description',
'title' => 'Link Description',
'description' => 'Describe your link',
'type' => 'text',
),
array(
'name' => '_affiliate_links_iframe',
'global_name' => 'iframe',
'title' => 'Mask Link',
'type' => 'checkbox',
'description' => 'Open link in iframe',
),
array(
'name' => '_affiliate_links_nofollow',
'global_name' => 'nofollow',
'title' => 'Nofollow Link',
'type' => 'checkbox',
'description' => 'Add "X-Robots-Tag: noindex, nofollow" to HTTP headers',
),
array(
'name' => '_affiliate_links_redirect',
'global_name' => 'redirect',
'title' => 'Redirect Type',
'type' => 'radio',
'description' => 'Set redirection HTTP status code',
'values' => array(
'301' => '301 Moved Permanently',
'302' => '302 Found',
'307' => '307 Temporary Redirect',
),
),
);
public $admin_grid_fields = array(
'_affiliate_links_target',
'_affiliate_links_description',
'_affiliate_links_redirect',
);
/**
* Hook into the appropriate actions when the class is constructed.
*/
public function __construct() {
// Add metabox actions.
add_action( 'load-post.php', array( $this, 'init_metabox' ) );
add_action( 'load-post-new.php', array( $this, 'init_metabox' ) );
// Add custom field values to admin grid columns.
add_filter( 'manage_posts_columns', array( $this, 'columns_head' ) );
add_action( 'manage_posts_custom_column', array( $this, 'columns_content' ), 10, 2 );
add_action( 'restrict_manage_posts', array( $this, 'restrict_links_by_cat' ) );
// Add custom styling.
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
// Remove the Yoast SEO columns
add_action( 'manage_edit-' . Affiliate_Links::$post_type . '_columns', array( $this, 'hide_yoast_columns' ) );
// remove unnecessary screen options
add_action( 'current_screen', array( $this, 'get_screen_options' ) );
// remove view mode screen options
add_filter(
'view_mode_post_types',
array(
$this,
'remove_view_mode',
)
);
}
/**
* Remove unused Yoast columns
*/
public function hide_yoast_columns( $columns ) {
if ( ! current_user_can( 'manage_options' ) ) {
return $columns;
}
unset( $columns['wpseo-score'] );
unset( $columns['wpseo-title'] );
unset( $columns['wpseo-metadesc'] );
unset( $columns['wpseo-focuskw'] );
return $columns;
}
/**
* Add admin css file.
*/
public function enqueue_scripts( $hook ) {
global $post;
if ( $hook != 'post.php' and $hook != 'post-new.php' and $hook != 'affiliate-links_page_affiliate_links' ) {
return;
}
// css
wp_register_style( 'affiliate-links-css', AFFILIATE_LINKS_PLUGIN_URL . 'admin/css/affiliate-links-admin.css', false, '1.6' );
wp_enqueue_style( 'affiliate-links-css' );
// js
wp_register_script( 'affiliate-links-js', AFFILIATE_LINKS_PLUGIN_URL . 'admin/js/affiliate-links-admin.js', array( 'jquery' ), '1.6', true );
if ( $post ) {
wp_localize_script(
'affiliate-links-js',
'afLinksAdmin',
array(
'linkId' => $post->ID,
'permalink' => get_the_permalink( $post->ID ),
'shortcode' => 'af_link',
)
);
}
wp_enqueue_script( 'affiliate-links-js', false, array( 'jquery' ), '1.6', true );
}
public function get_screen_options( $screen ) {
if ( 'edit-affiliate-links' !== $screen->id ) {
add_filter(
"manage_{$screen->id}_columns",
array(
$this,
'manage_screen_options',
)
);
}
}
public function manage_screen_options( $columns ) {
if ( isset( $columns['hits'] ) ) {
return array();
}
return $columns;
}
/**
* Modify admin grid column headers.
*/
public function columns_head( $defaults ) {
global $typenow;
if ( $typenow == Affiliate_Links::$post_type ) {
$defaults['permalink'] = __( 'Link URL', 'affiliate-links' );
foreach ( $this->get_fields() as $field ) {
if ( in_array( $field['name'], $this->admin_grid_fields ) ) {
$defaults[ $field['name'] ] = $field['title'];
}
}
$defaults['_affiliate_links_stat'] = __( 'Hits', 'affiliate-links' );
}
return $defaults;
}
/**
* Modify admin grid columns.
*/
public function columns_content( $column_name, $post_id ) {
switch ( $column_name ) {
case 'permalink':
echo esc_html( get_the_permalink( $post_id ) );
break;
case '_affiliate_links_target':
echo esc_html( get_post_meta( $post_id, '_affiliate_links_target', true ) );
break;
case '_affiliate_links_stat':
echo esc_html( $this->get_link_hits( $post_id ) );
break;
case '_affiliate_links_description':
echo esc_html( get_post_meta( $post_id, '_affiliate_links_description', true ) );
break;
case '_affiliate_links_redirect':
echo esc_html( get_post_meta( $post_id, '_affiliate_links_redirect', true ) );
break;
case '_affiliate_links_nofollow':
echo esc_html( get_post_meta( $post_id, '_affiliate_links_nofollow', true ) );
break;
}
}
/**
* Add link category filter to admin grid.
*/
function restrict_links_by_cat() {
global $typenow;
global $wp_query;
if ( $typenow == Affiliate_Links::$post_type ) {
if ( ! empty( $wp_query->query[ Affiliate_Links::$taxonomy ] ) ) {
$selected = $wp_query->query[ Affiliate_Links::$taxonomy ];
} else {
$selected = 0;
}
wp_dropdown_categories(
array(
'show_option_all' => __( 'All Categories', 'affiliate-links' ),
'taxonomy' => Affiliate_Links::$taxonomy,
'value_field' => 'slug',
'name' => Affiliate_Links::$taxonomy,
'orderby' => 'name',
'selected' => $selected,
'hierarchical' => true,
'depth' => 3,
'show_count' => true,
'hide_empty' => true,
'hide_if_empty' => 1,
)
);
}
}
/**
* Add appropriate actions.
*/
public function init_metabox() {
add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ), 0 );
add_action( 'save_post', array( $this, 'save' ) );
}
/**
* Adds the meta box container.
*/
public function add_meta_box( $post_type ) {
$post_types = array( Affiliate_Links::$post_type );
if ( in_array( $post_type, $post_types ) ) {
add_meta_box(
'affiliate_links_settings',
__( 'Link Settings', 'affiliate-links' ),
array( $this, 'render_metabox_content' ),
$post_type,
'normal',
'high'
);
add_meta_box(
'affiliate_links_embed',
__( 'Link Embedding', 'affiliate-links' ),
array( $this, 'render_metabox_embed' ),
$post_type,
'normal',
'high'
);
}
}
public function is_form_skip_save( $post_id ) {
return ( ! isset( $_POST['affiliate_links_custom_box_nonce'] ) )
|| ( ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['affiliate_links_custom_box_nonce'] ) ), 'affiliate_links_custom_box' ) )
|| ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
|| ( ! current_user_can( 'edit_post', $post_id ) );
}
/**
* Save metabox.
*/
public function save($post_id) {
// Check if we should skip saving
if ($this->is_form_skip_save($post_id)) {
return $post_id;
}
// Update all meta fields from standard and embedded fields
$all_fields = array_merge($this->get_fields(), $this->get_embedded_metabox_fields());
foreach ($all_fields as $field) {
update_post_meta($post_id, $field['name'], $this->get_sanitized_value($field));
}
// Reset stat count if it's set
// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Nonce already verified in is_form_skip_save()
if (isset($_POST['_affiliate_links_stat'])) {
// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Nonce already verified in is_form_skip_save()
$count = (int) sanitize_key($_POST['_affiliate_links_stat']);
update_post_meta($post_id, '_affiliate_links_stat', $count);
}
// Generate affiliate URL if the option is selected
// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Nonce already verified in is_form_skip_save()
if (!empty($_POST['_affiliate_links_generate_link'])) {
// phpcs:ignore WordPress.Security.NonceVerification.Missing, WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- Nonce already verified in is_form_skip_save()
$landing_page_url = esc_url_raw(wp_unslash($_POST['_affiliate_links_target'] ?? ''));
if ($landing_page_url) {
$affiliate_url = $this->generate_affiliate_url($landing_page_url);
if ($affiliate_url) {
update_post_meta($post_id, '_affiliate_links_target', $affiliate_url);
}
}
}
}
private function generate_affiliate_url($landing_page_url) {
// Get the API key from the plugin settings
$api_key = Affiliate_Links_Settings::get_option( 'affiliate_api_key' );
if (!$api_key || !$landing_page_url) {
return false;
}
$api_endpoint = "https://api.wecantrack.com/api/v1/affiliate/generate-link";
$payload = json_encode(array('landing_page_url' => $landing_page_url));
// Send the API key in a header rather than the URL query string so it does
// not leak into server/proxy access logs. The wecantrack API checks
// X-API-Key first and only falls back to the api_key param, so this is
// backward compatible.
$response = wp_remote_post($api_endpoint, array(
'method' => 'POST',
'body' => $payload,
'headers' => array(
'Content-Type' => 'application/json',
'X-API-Key' => $api_key,
),
));
// Check for errors
if (is_wp_error($response)) {
return false;
}
$body = wp_remote_retrieve_body($response);
$data = json_decode($body, true);
if (isset($data['links'][0]['affiliate_url'])) {
return esc_url_raw($data['links'][0]['affiliate_url']);
}
return false;
}
public function get_sanitized_value( $field ) {
// phpcs:ignore WordPress.Security.NonceVerification.Missing -- Called from save() where nonce is already verified
if ( ! isset( $_POST[ $field['name'] ] ) ) {
return '';
}
$sanitize_callback = ( isset( $field['sanitize_callback'] ) ) ? $field['sanitize_callback'] : 'sanitize_text_field';
// phpcs:ignore WordPress.Security.NonceVerification.Missing, WordPress.Security.ValidatedSanitizedInput.MissingUnslash, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Called from save() where nonce is already verified, sanitization happens via callback
return call_user_func( $sanitize_callback, wp_unslash( $_POST[ $field['name'] ] ) );
}
public function get_fields() {
return apply_filters( 'af_links_get_fields', $this->fields );
}
/**
* Render metabox content.
*/
public function render_metabox_content( $post ) {
global $post_type_object;
echo '';
}
public function render_fields( $id ) {
foreach ( $this->get_fields() as $field ) {
// Retrieve an existing value from the database.
$value = ( isset( $field['name'] ) ) ? get_post_meta( $id, $field['name'], true ) : '';
$this->render_field( $field, $value );
}
}
public function get_embedded_metabox_fields() {
return array(
array(
'name' => '_embedded_add_rel',
'thead' => __( 'Add rel="nofollow"', 'affiliate-links' ),
'class' => 'affiliate_links_control',
'data-attr' => 'rel',
'data-value' => 'nofollow',
'description' => __( 'Discourage search engines from following this link', 'affiliate-links' ),
'type' => 'embed_checkbox',
),
array(
'name' => '_embedded_add_target',
'thead' => __( 'Add target="_blank', 'affiliate-links' ),
'class' => 'affiliate_links_control',
'data-attr' => 'target',
'data-value' => '_blank',
'description' => __( 'Link will be opened in a new browser tab', 'affiliate-links' ),
'type' => 'embed_checkbox',
),
array(
'name' => '_embedded_add_link_title',
'thead' => __( 'Add link title', 'affiliate-links' ),
'class' => 'affiliate_links_control',
'data-attr' => 'title',
'description' => __( 'Title text on link hover', 'affiliate-links' ),
'type' => 'embed_text',
),
array(
'name' => '_embedded_add_link_class',
'thead' => __( 'Add link class', 'affiliate-links' ),
'class' => 'affiliate_links_control',
'data-attr' => 'class',
'description' => __( 'CSS class for custom styling', 'affiliate-links' ),
'type' => 'embed_text',
),
array(
'name' => '_embedded_add_link_anchor',
'thead' => __( 'Add link anchor', 'affiliate-links' ),
'class' => 'affiliate_links_control',
'data-attr' => 'anchor',
'description' => __( 'Clickable link text', 'affiliate-links' ),
'type' => 'embed_text',
),
);
}
/**
* Render embed metabox content.
*/
public function render_metabox_embed( $post ) {
global $post_type_object;
$sample_permalink_html = $post_type_object->public ? get_sample_permalink_html( $post->ID ) : '';
if ( $post_type_object->public
&& ! ( 'pending' == get_post_status( $post ) && ! current_user_can( $post_type_object->cap->publish_posts ) )
) {
$has_sample_permalink = $sample_permalink_html && 'auto-draft' != $post->post_status;
if ( $has_sample_permalink ) {
add_filter( 'af_links_get_fields', array( $this, 'get_embedded_metabox_fields' ) );
echo '';
load_template( __DIR__ . '/partials/metabox-embed.php' );
} else {
echo '' . esc_html__( 'Before you can use this link you need to publish it.', 'affiliate-links' ) . '
';
}
}
}
/**
* Generate settings field html.
*/
public function render_field( $field, $value ) {
$func_name = 'render_' . $field['type'] . '_field';
if ( method_exists( __CLASS__, $func_name ) ) {
call_user_func_array(
array( $this, $func_name ),
array(
'field' => $field,
'value' => $value,
)
);
} else {
call_user_func_array(
array( $this, 'render_text_field' ),
array(
'field' => $field,
'value' => $value,
)
);
}
}
/**
* Generate text input field.
*/
public function render_text_field( $field, $value ) {
$name = esc_attr( $field['name'] );
$title = esc_attr( $field['title'] );
$desc = esc_html( $field['description'] );
$type = esc_attr( $field['type'] );
?>
$value ) { ?>
get_link_hits( $post_id ) );
?>
-
get_var( $wpdb->prepare(
"SELECT count(link_id) as hits FROM {$wpdb->prefix}af_links_activity WHERE link_id=%d",
$post_id
) );
}
/**
* Generate fields for permalink displaying.
*/
public function link_field( $post_id ) {
?>