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tsbega/image-shortcode.php

Forked from kovshenin/image-shortcode.php
Created March 27, 2020 02:25
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Revisions

  1. @kovshenin kovshenin revised this gist Mar 6, 2012. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion image-shortcode.php
    View file
    Original file line number Diff line number Diff line change
    @@ -33,7 +33,7 @@ function kovshenin_image_shortcode( $atts ) {

    // Look the file up in the database.
    $file = str_replace( trailingslashit( $base_url ), '', $src );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", '%' . like_escape( $file ) . '%' ) );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", '%"' . like_escape( $file ) . '"%' ) );

    // If an attachment record was not found.
    if ( ! $attachment_id ) {
  2. @kovshenin kovshenin revised this gist Mar 6, 2012. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion image-shortcode.php
    View file
    Original file line number Diff line number Diff line change
    @@ -33,7 +33,7 @@ function kovshenin_image_shortcode( $atts ) {

    // Look the file up in the database.
    $file = str_replace( trailingslashit( $base_url ), '', $src );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", '%' . like_escape( $file ) '%' ) );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", '%' . like_escape( $file ) . '%' ) );

    // If an attachment record was not found.
    if ( ! $attachment_id ) {
  3. @kovshenin kovshenin revised this gist Mar 6, 2012. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion image-shortcode.php
    View file
    Original file line number Diff line number Diff line change
    @@ -33,7 +33,7 @@ function kovshenin_image_shortcode( $atts ) {

    // Look the file up in the database.
    $file = str_replace( trailingslashit( $base_url ), '', $src );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", "%\"$file\"%" ) );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", '%' . like_escape( $file ) '%' ) );

    // If an attachment record was not found.
    if ( ! $attachment_id ) {
  4. @kovshenin kovshenin revised this gist Mar 6, 2012. 1 changed file with 4 additions and 4 deletions.
    8 changes: 4 additions & 4 deletions image-shortcode.php
    View file
    Original file line number Diff line number Diff line change
    @@ -2,13 +2,13 @@
    /**
    * Image shortcode callback
    *
    * Enables the [image] shortcode, pseudo-TimThumb but creates resized and cropped image files
    * Enables the [kovshenin_image] shortcode, pseudo-TimThumb but creates resized and cropped image files
    * from existing media library entries. Usage:
    * [image src="http://example.org/wp-content/uploads/2012/03/image.png" width="100" height="100"]
    * [kovshenin_image src="http://example.org/wp-content/uploads/2012/03/image.png" width="100" height="100"]
    *
    * @uses image_make_intermediate_size
    */
    function image_shortcode( $atts ) {
    function kovshenin_image_shortcode( $atts ) {
    extract( shortcode_atts( array(
    'src' => '',
    'width' => '',
    @@ -75,5 +75,5 @@ function image_shortcode( $atts ) {
    $height = ( $height ) ? 'height="' . absint( $height ) . '"' : '';
    return sprintf( '<img src="%s" %s %s />', esc_url( $src ), $width, $height );
    }
    add_shortcode( 'image', 'image_shortcode' );
    add_shortcode( 'kovshenin_image', 'kovshenin_image_shortcode' );
    ?>
  5. @kovshenin kovshenin created this gist Mar 6, 2012.
    79 changes: 79 additions & 0 deletions image-shortcode.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,79 @@
    <?php
    /**
    * Image shortcode callback
    *
    * Enables the [image] shortcode, pseudo-TimThumb but creates resized and cropped image files
    * from existing media library entries. Usage:
    * [image src="http://example.org/wp-content/uploads/2012/03/image.png" width="100" height="100"]
    *
    * @uses image_make_intermediate_size
    */
    function image_shortcode( $atts ) {
    extract( shortcode_atts( array(
    'src' => '',
    'width' => '',
    'height' => '',
    ), $atts ) );

    global $wpdb;

    // Sanitize
    $height = absint( $height );
    $width = absint( $width );
    $src = esc_url( strtolower( $src ) );
    $needs_resize = true;

    $upload_dir = wp_upload_dir();
    $base_url = strtolower( $upload_dir['baseurl'] );

    // Let's see if the image belongs to our uploads directory.
    if ( substr( $src, 0, strlen( $base_url ) ) != $base_url ) {
    return "Error: external images are not supported.";
    }

    // Look the file up in the database.
    $file = str_replace( trailingslashit( $base_url ), '', $src );
    $attachment_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s LIMIT 1;", "%\"$file\"%" ) );

    // If an attachment record was not found.
    if ( ! $attachment_id ) {
    return "Error: attachment not found.";
    }

    // Look through the attachment meta data for an image that fits our size.
    $meta = wp_get_attachment_metadata( $attachment_id );
    foreach( $meta['sizes'] as $key => $size ) {
    if ( $size['width'] == $width && $size['height'] == $height ) {
    $src = str_replace( basename( $src ), $size['file'], $src );
    $needs_resize = false;
    break;
    }
    }

    // If an image of such size was not found, we can create one.
    if ( $needs_resize ) {
    $attached_file = get_attached_file( $attachment_id );
    $resized = image_make_intermediate_size( $attached_file, $width, $height, true );
    if ( ! is_wp_error( $resized ) ) {

    // Let metadata know about our new size.
    $key = sprintf( 'resized-%dx%d', $width, $height );
    $meta['sizes'][$key] = $resized;
    $src = str_replace( basename( $src ), $resized['file'], $src );
    wp_update_attachment_metadata( $attachment_id, $meta );

    // Record in backup sizes so everything's cleaned up when attachment is deleted.
    $backup_sizes = get_post_meta( $attachment_id, '_wp_attachment_backup_sizes', true );
    if ( ! is_array( $backup_sizes ) ) $backup_sizes = array();
    $backup_sizes[$key] = $resized;
    update_post_meta( $attachment_id, '_wp_attachment_backup_sizes', $backup_sizes );
    }
    }

    // Generate the markup and return.
    $width = ( $width ) ? 'width="' . absint( $width ) . '"' : '';
    $height = ( $height ) ? 'height="' . absint( $height ) . '"' : '';
    return sprintf( '<img src="%s" %s %s />', esc_url( $src ), $width, $height );
    }
    add_shortcode( 'image', 'image_shortcode' );
    ?>