flickr.php
| 1 | <?php |
| 2 | /** |
| 3 | * Disable direct access/execution to/of the widget code. |
| 4 | */ |
| 5 | if ( ! defined( 'ABSPATH' ) ) { |
| 6 | exit; |
| 7 | } |
| 8 | |
| 9 | if ( ! class_exists( 'Jetpack_Flickr_Widget' ) ) { |
| 10 | /** |
| 11 | * Flickr Widget |
| 12 | * |
| 13 | * Display your recent Flickr photos. |
| 14 | */ |
| 15 | class Jetpack_Flickr_Widget extends WP_Widget { |
| 16 | /** |
| 17 | * Constructor. |
| 18 | */ |
| 19 | function __construct() { |
| 20 | parent::__construct( |
| 21 | 'flickr', |
| 22 | /** This filter is documented in modules/widgets/facebook-likebox.php */ |
| 23 | apply_filters( 'jetpack_widget_name', esc_html__( 'Flickr', 'jetpack' ) ), |
| 24 | array( |
| 25 | 'description' => esc_html__( 'Display your recent Flickr photos.', 'jetpack' ), |
| 26 | 'customize_selective_refresh' => true, |
| 27 | ), |
| 28 | array() |
| 29 | ); |
| 30 | |
| 31 | if ( is_active_widget( false, false, $this->id_base ) || is_customize_preview() ) { |
| 32 | add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) ); |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * Enqueue style. |
| 38 | */ |
| 39 | function enqueue_style() { |
| 40 | wp_enqueue_style( 'flickr-widget-style', plugins_url( 'flickr/style.css', __FILE__ ), array(), '20170405' ); |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * Return an associative array of default values. |
| 45 | * |
| 46 | * These values are used in new widgets. |
| 47 | * |
| 48 | * @return array Default values for the widget options. |
| 49 | */ |
| 50 | public function defaults() { |
| 51 | return array( |
| 52 | 'title' => esc_html__( 'Flickr Photos', 'jetpack' ), |
| 53 | 'items' => 4, |
| 54 | 'target' => false, |
| 55 | 'flickr_image_size' => 'thumbnail', |
| 56 | 'flickr_rss_url' => '', |
| 57 | ); |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Front-end display of the widget. |
| 62 | * |
| 63 | * @param array $args Widget arguments. |
| 64 | * @param array $instance Saved values from database. |
| 65 | */ |
| 66 | public function widget( $args, $instance ) { |
| 67 | $instance = wp_parse_args( $instance, $this->defaults() ); |
| 68 | |
| 69 | $image_size_string = 'small' == $instance['flickr_image_size'] ? '_m.jpg' : '_t.jpg'; |
| 70 | |
| 71 | if ( ! empty( $instance['flickr_rss_url'] ) ) { |
| 72 | |
| 73 | /* |
| 74 | * Parse the URL, and rebuild a URL that's sure to display images. |
| 75 | * Some Flickr Feeds do not display images by default. |
| 76 | */ |
| 77 | $flickr_parameters = wp_parse_url( htmlspecialchars_decode( $instance['flickr_rss_url'] ) ); |
| 78 | |
| 79 | // Is it a Flickr Feed. |
| 80 | if ( |
| 81 | ! empty( $flickr_parameters['host'] ) |
| 82 | && ! empty( $flickr_parameters['query'] ) |
| 83 | && false !== strpos( $flickr_parameters['host'], 'flickr' ) |
| 84 | ) { |
| 85 | parse_str( $flickr_parameters['query'], $vars ); |
| 86 | |
| 87 | // Do we have an ID in the feed? Let's continue. |
| 88 | if ( isset( $vars['id'] ) ) { |
| 89 | |
| 90 | // Flickr Feeds can be used for groups or for individuals. |
| 91 | if ( |
| 92 | ! empty( $flickr_parameters['path'] ) |
| 93 | && false !== strpos( $flickr_parameters['path'], 'groups' ) |
| 94 | ) { |
| 95 | $feed_url = 'https://api.flickr.com/services/feeds/groups_pool.gne'; |
| 96 | } else { |
| 97 | $feed_url = 'https://api.flickr.com/services/feeds/photos_public.gne'; |
| 98 | } |
| 99 | |
| 100 | // Build our new RSS feed. |
| 101 | $rss_url = sprintf( |
| 102 | '%1$s?id=%2$s&format=rss_200_enc', |
| 103 | esc_url( $feed_url ), |
| 104 | esc_attr( $vars['id'] ) |
| 105 | ); |
| 106 | } |
| 107 | } |
| 108 | } // End if(). |
| 109 | |
| 110 | // Still no RSS feed URL? Get a default feed from Flickr to grab interesting photos. |
| 111 | if ( empty( $rss_url ) ) { |
| 112 | $rss_url = 'https://api.flickr.com/services/feeds/photos_interesting.gne?format=rss_200'; |
| 113 | } |
| 114 | |
| 115 | $rss = fetch_feed( $rss_url ); |
| 116 | |
| 117 | $photos = ''; |
| 118 | if ( ! is_wp_error( $rss ) ) { |
| 119 | foreach ( $rss->get_items( 0, $instance['items'] ) as $photo ) { |
| 120 | switch ( $instance['flickr_image_size'] ) { |
| 121 | case 'thumbnail': |
| 122 | $src = $photo->get_enclosure()->get_thumbnail(); |
| 123 | break; |
| 124 | case 'small': |
| 125 | $src = preg_match( '/src="(.*?)"/i', $photo->get_description(), $p ); |
| 126 | $src = $p[1]; |
| 127 | break; |
| 128 | case 'large': |
| 129 | $src = $photo->get_enclosure()->get_link(); |
| 130 | break; |
| 131 | } |
| 132 | |
| 133 | $photos .= '<a href="' . esc_url( $photo->get_permalink(), array( 'http', 'https' ) ) . '" '; |
| 134 | if ( $instance['target'] ) { |
| 135 | $photos .= 'target="_blank" rel="noopener noreferrer" '; |
| 136 | } |
| 137 | $photos .= '><img src="' . esc_url( $src, array( 'http', 'https' ) ) . '" '; |
| 138 | $photos .= 'alt="' . esc_attr( $photo->get_title() ) . '" '; |
| 139 | $photos .= 'title="' . esc_attr( $photo->get_title() ) . '" '; |
| 140 | $photos .= ' /></a>'; |
| 141 | } |
| 142 | if ( ! empty( $photos ) && class_exists( 'Jetpack_Photon' ) && Jetpack::is_module_active( 'photon' ) ) { |
| 143 | $photos = Jetpack_Photon::filter_the_content( $photos ); |
| 144 | } |
| 145 | |
| 146 | $flickr_home = $rss->get_link(); |
| 147 | } |
| 148 | |
| 149 | echo $args['before_widget']; |
| 150 | if ( empty( $photos ) ) { |
| 151 | if ( current_user_can( 'edit_theme_options' ) ) { |
| 152 | printf( |
| 153 | '<p>%1$s<br />%2$s</p>', |
| 154 | esc_html__( 'There are no photos to display. Make sure your Flickr feed URL is correct, and that your pictures are publicly accessible.', 'jetpack' ), |
| 155 | esc_html__( '(Only admins can see this message)', 'jetpack' ) |
| 156 | ); |
| 157 | } |
| 158 | } else { |
| 159 | echo $args['before_title'] . $instance['title'] . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 160 | require( dirname( __FILE__ ) . '/flickr/widget.php' ); |
| 161 | } |
| 162 | echo $args['after_widget']; |
| 163 | /** This action is already documented in modules/widgets/gravatar-profile.php */ |
| 164 | do_action( 'jetpack_stats_extra', 'widget_view', 'flickr' ); |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Back-end widget form. |
| 169 | * |
| 170 | * @param array $instance Previously saved values from database. |
| 171 | */ |
| 172 | public function form( $instance ) { |
| 173 | $instance = wp_parse_args( $instance, $this->defaults() ); |
| 174 | require( dirname( __FILE__ ) . '/flickr/form.php' ); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Sanitize widget form values as they are saved. |
| 179 | * |
| 180 | * @param array $new_instance Values just sent to be saved. |
| 181 | * @param array $old_instance Previously saved values from database. |
| 182 | * @return array Updated safe values to be saved. |
| 183 | */ |
| 184 | public function update( $new_instance, $old_instance ) { |
| 185 | $instance = array(); |
| 186 | $defaults = $this->defaults(); |
| 187 | |
| 188 | if ( isset( $new_instance['title'] ) ) { |
| 189 | $instance['title'] = wp_kses( $new_instance['title'], array() ); |
| 190 | } |
| 191 | |
| 192 | if ( isset( $new_instance['items'] ) ) { |
| 193 | $instance['items'] = (int) $new_instance['items']; |
| 194 | } |
| 195 | |
| 196 | if ( isset( $new_instance['target'] ) ) { |
| 197 | $instance['target'] = (bool) $new_instance['target']; |
| 198 | } |
| 199 | |
| 200 | if ( |
| 201 | isset( $new_instance['flickr_image_size'] ) && |
| 202 | in_array( $new_instance['flickr_image_size'], array( 'thumbnail', 'small', 'large' ) ) |
| 203 | ) { |
| 204 | $instance['flickr_image_size'] = $new_instance['flickr_image_size']; |
| 205 | } else { |
| 206 | $instance['flickr_image_size'] = 'thumbnail'; |
| 207 | } |
| 208 | |
| 209 | if ( isset( $new_instance['flickr_rss_url'] ) ) { |
| 210 | $instance['flickr_rss_url'] = esc_url( $new_instance['flickr_rss_url'], array( 'http', 'https' ) ); |
| 211 | |
| 212 | if ( strlen( $instance['flickr_rss_url'] ) < 10 ) { |
| 213 | $instance['flickr_rss_url'] = ''; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | return $instance; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | // Register Jetpack_Flickr_Widget widget. |
| 222 | function jetpack_register_flickr_widget() { |
| 223 | register_widget( 'Jetpack_Flickr_Widget' ); |
| 224 | } |
| 225 | add_action( 'widgets_init', 'jetpack_register_flickr_widget' ); |
| 226 | } |
| 227 |