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<?php |
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|
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|
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namespace Jet_Form_Builder\Classes\Resources; |
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|
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// If this file is called directly, abort. |
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if ( ! defined( 'WPINC' ) ) { |
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die; |
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} |
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|
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class Uploaded_File implements Media_Block_Value, Uploaded_File_Path { |
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|
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protected $file = ''; |
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protected $url = ''; |
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protected $type = ''; |
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protected $attachment_id = ''; |
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|
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/** |
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* @param File $file |
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* |
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* @throws Upload_Exception |
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*/ |
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public function upload( File $file ) { |
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if ( ! function_exists( 'wp_handle_upload' ) ) { |
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include_once ABSPATH . 'wp-admin/includes/file.php'; |
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include_once ABSPATH . 'wp-admin/includes/media.php'; |
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} |
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|
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add_filter( 'upload_dir', array( Upload_Dir::class, 'apply_upload_dir' ) ); |
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|
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$file_array = $file->to_array(); |
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$this->upload_file( $file_array ); |
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|
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remove_filter( 'upload_dir', array( Upload_Dir::class, 'apply_upload_dir' ) ); |
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} |
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|
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/** |
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* @param array $file |
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* |
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* @throws Upload_Exception |
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*/ |
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protected function upload_file( array $file ) { |
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$upload = wp_handle_upload( |
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$file, |
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array( |
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'test_form' => false, |
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) |
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); |
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|
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if ( ! empty( $upload['error'] ) ) { |
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throw new Upload_Exception( esc_html( $upload['error'] ) ); |
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} |
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|
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$this->set_from_array( $upload ); |
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} |
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|
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/** |
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* @throws Upload_Exception |
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*/ |
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public function add_attachment() { |
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if ( ! function_exists( 'wp_generate_attachment_metadata' ) ) { |
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require_once ABSPATH . 'wp-admin/includes/image.php'; |
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} |
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|
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if ( ! function_exists( 'wp_read_video_metadata' ) ) { |
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require_once ABSPATH . 'wp-admin/includes/media.php'; |
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} |
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|
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$attachment = wp_insert_attachment( |
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array( |
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'guid' => $this->get_url(), |
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'post_mime_type' => $this->get_type(), |
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'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $this->get_file() ) ), |
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'post_content' => '', |
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'post_status' => 'publish', |
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), |
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$this->get_file(), |
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0, |
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true |
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); |
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|
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if ( is_wp_error( $attachment ) ) { |
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throw new Upload_Exception( esc_html( $attachment->get_error_message() ) ); |
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} |
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|
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/** |
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* Records who actually uploaded this attachment, so a later request |
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* can't take credit for someone else's upload just because it also |
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* carries the `_jfb_uploaded_by_form` marker. |
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* |
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* A target post ID is deliberately NOT recorded here: at upload time |
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* (field/request parsing) no post has been authorized yet - the Insert |
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* Post action's `ID` property (which would map to a real post) is only |
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* resolved and capability-checked later, when that action itself runs. |
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* Binding to a not-yet-authorized `pid` value from the same request |
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* would just persist the attacker-controlled value the field-level |
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* check exists to distrust. |
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* |
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* Written BEFORE `_jfb_uploaded_by_form` (below), not after: the latter |
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* is the trust gate `Media_Cleanup::is_owned_by_current_actor()` reads |
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* to decide an attachment is plugin-owned at all. If this request were |
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* interrupted between the two writes, an attachment left with the |
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* trust gate set but no uploader identity would fall into that check's |
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* unconditional-allow "legacy, predates the marker system" branch - |
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* recreating the same unrestricted-trust primitive this fix exists to |
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* close. Writing the identity first means an interruption instead |
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* leaves the attachment with neither marker: not yet plugin-owned by |
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* anyone, exactly like an ordinary, unrelated attachment. |
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* |
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* Order alone is not enough, though: `update_post_meta()` is not |
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* guaranteed to persist just because it was called - a plugin hooked |
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* on the `update_post_meta`/`add_post_meta` filters (WP core lets any |
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* of them short-circuit the write by returning non-null) could silently |
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* swallow the identity write while the second call still succeeds. The |
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* explicit `metadata_exists()` check below confirms the identity is |
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* actually there before the trust gate is published; if it is not, |
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* this attachment is left exactly as an ordinary, non-plugin-owned one |
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* (no `_jfb_uploaded_by_form` either), rather than risk a trust gate |
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* with nothing behind it. |
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*/ |
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update_post_meta( $attachment, '_jfb_uploaded_by_user', get_current_user_id() ); |
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|
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if ( metadata_exists( 'post', $attachment, '_jfb_uploaded_by_user' ) ) { |
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update_post_meta( $attachment, '_jfb_uploaded_by_form', 1 ); |
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} |
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|
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wp_update_attachment_metadata( |
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$attachment, |
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wp_generate_attachment_metadata( $attachment, $this->get_file() ) |
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); |
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|
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$this->set_attachment_id( (string) $attachment ); |
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|
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// Update file url for performance plugins compatibility |
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$this->set_url( wp_get_attachment_url( $attachment ) ); |
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} |
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|
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public function set_from_array( array $upload ): Uploaded_File { |
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if ( isset( $upload['file'] ) ) { |
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$file = wp_normalize_path( (string) $upload['file'] ); |
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|
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// Validate the path against uploads, but keep the original non-realpath |
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// value so WordPress can correctly relativize symlinked upload paths. |
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if ( '' !== self::normalize_allowed_upload_file_path( $file ) ) { |
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$this->file = $file; |
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} |
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} |
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if ( isset( $upload['url'] ) ) { |
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$this->url = esc_url_raw( (string) $upload['url'] ); |
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} |
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if ( isset( $upload['type'] ) ) { |
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$this->type = sanitize_mime_type( (string) $upload['type'] ); |
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} |
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if ( isset( $upload['id'] ) ) { |
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|
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$this->set_attachment_id( (string) absint( $upload['id'] ) ); |
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} |
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|
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return $this; |
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} |
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|
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public function set_attachment_id( string $attachment_id ): Uploaded_File { |
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$this->attachment_id = $attachment_id; |
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|
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return $this; |
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} |
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|
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/** |
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* @return string |
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*/ |
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public function get_type(): string { |
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return $this->type; |
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} |
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|
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/** |
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* @return string |
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*/ |
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public function get_file(): string { |
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return $this->file; |
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} |
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|
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/** |
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* @return string |
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*/ |
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public function get_url(): string { |
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return $this->url; |
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} |
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|
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/* |
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* Realisation of |
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* \Jet_Form_Builder\Classes\Resources\Media_Block_Value |
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*/ |
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|
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/** |
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* @return string |
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*/ |
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public function get_attachment_id(): string { |
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return $this->attachment_id; |
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} |
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|
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|
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/** |
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* @return string |
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*/ |
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public function get_attachment_url(): string { |
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return $this->get_url(); |
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} |
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|
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/** |
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* @return array |
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*/ |
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public function get_attachment_both(): array { |
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return array( |
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'id' => $this->get_attachment_id(), |
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'url' => $this->get_attachment_url(), |
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); |
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} |
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|
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public function get_attachment_ids(): array { |
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return array( $this->get_attachment_id() ); |
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} |
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|
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/* |
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* Realisation of |
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* \Jet_Form_Builder\Classes\Resources\Uploaded_File_Path |
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*/ |
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|
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/** |
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* @return string |
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*/ |
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public function get_attachment_file(): string { |
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$file = $this->get_file(); |
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|
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if ( $file ) { |
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$file = self::normalize_allowed_upload_file_path( $file ); |
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if ( $file ) { |
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return $file; |
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} |
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} |
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|
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$id = $this->get_attachment_id(); |
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$url = $this->get_attachment_url(); |
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|
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if ( ( empty( $id ) || ! is_numeric( $id ) ) && ! empty( $url ) ) { |
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$id = attachment_url_to_postid( $url ); |
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} |
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|
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$file = get_attached_file( $id ); |
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|
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if ( ! is_string( $file ) ) { |
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return ''; |
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} |
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|
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return self::normalize_allowed_upload_file_path( $file ); |
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} |
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|
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/** |
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* @param string $url |
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*/ |
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public function set_url( string $url ) { |
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$this->url = esc_url_raw( $url ); |
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} |
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|
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/** |
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* Normalize path and allow only existing files inside wp-content uploads directory. |
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* |
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* @return string Normalized realpath to a file in uploads, or empty string. |
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*/ |
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public static function normalize_allowed_upload_file_path( string $file ): string { |
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if ( '' === $file ) { |
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return ''; |
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} |
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|
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$path = wp_normalize_path( $file ); |
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$real = realpath( $path ); |
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|
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if ( false === $real ) { |
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return ''; |
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} |
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|
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$real = wp_normalize_path( $real ); |
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$real = untrailingslashit( $real ); |
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|
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$uploads = wp_get_upload_dir(); |
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$base = (string) ( $uploads['basedir'] ?? '' ); |
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|
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if ( '' === $base ) { |
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return ''; |
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} |
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|
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$base_real = realpath( $base ); |
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if ( false === $base_real ) { |
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return ''; |
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} |
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|
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$base = wp_normalize_path( $base_real ); |
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$base = untrailingslashit( $base ); |
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|
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if ( 0 === strpos( $real, $base . '/' ) && is_file( $real ) ) { |
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return $real; |
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} |
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|
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return ''; |
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} |
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} |
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|
