BP_Media_Rotation

类BP_Media_Rotation{/** *构造函数。* * @since BuddyBoss 1.1.1 */ function __construct() {add_action('bp_init'， array($this， 'init'));} function init() {add_action('bp_media_attachment_upload '， array($this， 'attachment_upload '));} /** *附件上传并修复旋转** @param $id ** @since BuddyBoss 1.1.1 */ function attachment_upload ($id) {global $bp_media_rotation_fix_id;$ bp_media_rotation_fix_id = $ id;$attachment = get_post($id);$path = get_attached_file($id); / /获取路径If ('image/jpeg' == $attachment->post_mime_type && !add_action('shutdown'， array($this， 'rotation_shutdown_fallback'));$status = $this->fix_rotation($path); if ( ! empty( $status ) ) { $attachment_meta = wp_generate_attachment_metadata( $id, $path ); wp_update_attachment_metadata( $id, $attachment_meta ); } } } /** * Attempt to capture a failed image rotation due to memory exhaustion * * @since BuddyBoss 1.1.1 */ function rotation_shutdown_fallback() { global $bp_media_rotation_fix_id; $error = error_get_last(); // Make sure an error was thrown from this file if ( empty( $error ) || empty( $error['file'] ) || (int) $error['type'] !== 1 || $error['file'] !== __FILE__ ) { return; } @header( "HTTP/1.1 200 OK" ); $aid = $bp_media_rotation_fix_id; $attachment = get_post( $aid ); $name = $url = null; if ( $attachment !== null ) { $name = $attachment->post_title; $url_nfo = wp_get_attachment_image_src( $aid ); $url = is_array( $url_nfo ) && ! empty( $url_nfo ) ? $url_nfo[0] : null; } $result = array( 'status' => ( $attachment !== null ), 'attachment_id' => (int) $aid, 'url' => esc_url( $url ), 'name' => esc_attr( $name ) ); echo htmlspecialchars( json_encode( $result ), ENT_NOQUOTES ); exit( 0 ); } /** * Fix rotation of mobile uploaded images * * @since BuddyBoss 1.1.1 * @param $source * * @return bool */ function fix_rotation( $source ) { if ( ! file_exists( $source ) ) { return false; } $exif = null; $ort = 0; if ( function_exists( 'exif_read_data' ) ) { $exif = @exif_read_data( $source ); $ort = isset( $exif['Orientation'] ) ? $exif['Orientation'] : 0; } if ( $ort > 1 ) { $destination = $source; $size = getimagesize( $source ); $width = $size[0]; $height = $size[1]; $sourceImage = imagecreatefromjpeg( $source ); $destinationImage = imagecreatetruecolor( $width, $height ); //Specifies the color of the uncovered zone after the rotation $bgd_color = imagecolorallocatealpha( $destinationImage, 0, 0, 0, 127 ); imagecopyresampled( $destinationImage, $sourceImage, 0, 0, 0, 0, $width, $height, $width, $height ); switch ( $ort ) { case 2: $this->flip_image( $dimg ); break; case 3: $destinationImage = imagerotate( $destinationImage, 180, $bgd_color ); break; case 4: $this->flip_image( $dimg ); break; case 5: $this->flip_image( $destinationImage ); $destinationImage = imagerotate( $destinationImage, - 90, $bgd_color ); break; case 6: $destinationImage = imagerotate( $destinationImage, - 90, $bgd_color ); break; case 7: $this->flip_image( $destinationImage ); $destinationImage = imagerotate( $destinationImage, - 90, $bgd_color ); break; case 8: $destinationImage = imagerotate( $destinationImage, 90, $bgd_color ); break; } return imagejpeg( $destinationImage, $destination, 100 ); } } /** * Flips the image * * @param $image * * @return bool */ function flip_image( &$image ) { $x = 0; $y = 0; $height = null; $width = null; if ( $width < 1 ) { $width = imagesx( $image ); } if ( $height < 1 ) { $height = imagesy( $image ); } if ( function_exists( 'imageistruecolor' ) && imageistruecolor( $image ) ) { $tmp = imagecreatetruecolor( 1, $height ); } else { $tmp = imagecreate( 1, $height ); } $x2 = $x + $width - 1; for ( $i = (int) floor( ( $width - 1 ) / 2 ); $i >= 0; $i -- ) { imagecopy( $tmp, $image, 0, 0, $x2 - $i, $y, 1, $height ); imagecopy( $image, $image, $x2 - $i, $y, $x + $i, $y, 1, $height ); imagecopy( $image, $tmp, $x + $i, $y, 0, 0, 1, $height ); } imagedestroy( $tmp ); return true; } }