← All changes | addons/custom_font/Custom_Font.php +94 -16 5.0.21 → 5.1.0 View file →

		@@ -11,8 +11,10 @@
11	11	add_filter( 'manage_ultp_custom_font_posts_columns', array( $this, 'templates_table_head' ) );
12	12	add_action( 'manage_ultp_custom_font_posts_custom_column', array( $this, 'templates_table_content' ), 10, 2 );
13	13	add_filter( 'upload_mimes', array( $this, 'add_file_types_to_uploads' ) );
14	14	add_filter( 'wp_check_filetype_and_ext', array( $this, 'font_correct_filetypes' ), 10, 5 );
	15	+ add_filter( 'wp_handle_upload_prefilter', array( $this, 'sanitize_svg_upload' ) );
	16	+ add_filter( 'wp_handle_sideload_prefilter', array( $this, 'sanitize_svg_upload' ) );
15	17	add_filter( 'enter_title_here', array( $this, 'update_custom_font_title' ), 10, 2 );
16	18	}
17	19
18	20	public function update_custom_font_title( $title, $post ) {
		@@ -42,11 +44,14 @@
42	44	$new_filetypes = array();
43	45	$new_filetypes['woff'] = 'font/woff';
44	46	$new_filetypes['woff2'] = 'font/woff2';
45	47	$new_filetypes['ttf'] = 'font/ttf';
46		- $new_filetypes['svg'] = 'image/svg+xml';
47	48	$new_filetypes['eot'] = 'font/ttf';
48		- $file_types = array_merge( $file_types, $new_filetypes );
	49	+ // SVG only for a custom font, where every upload is sanitized by sanitize_svg_upload().
	50	+ if ( $this->is_custom_font_upload() ) {
	51	+ $new_filetypes['svg'] = 'image/svg+xml';
	52	+ }
	53	+ $file_types = array_merge( $file_types, $new_filetypes );
49	54	return $file_types;
50	55	} else {
51	56	return $file_types;
52	57	}
		@@ -51,9 +56,82 @@
51	56	return $file_types;
52	57	}
53	58	}
54	59
	60	+ /**
	61	+ * Whether the current request uploads to, or edits, a custom font the user may edit.
	62	+ *
	63	+ * Uploads from the font screen's media modal send the font as `post_id`; async-upload.php
	64	+ * checks its own nonce and refuses a `post_id` the user cannot edit. The screen itself is
	65	+ * recognised by the global post.
	66	+ *
	67	+ * @return bool
	68	+ */
	69	+ private function is_custom_font_upload() {
	70	+ if ( ! current_user_can( 'manage_options' ) ) {
	71	+ return false;
	72	+ }
	73	+ $post_id = isset( $_REQUEST['post_id'] ) ? absint( $_REQUEST['post_id'] ) : 0; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Read only to choose the context; async-upload.php verifies the media-form nonce.
	74	+ if ( ! $post_id ) {
	75	+ $post_id = (int) get_the_ID();
	76	+ }
	77	+ return $post_id > 0 && 'ultp_custom_font' === get_post_type( $post_id ) && current_user_can( 'edit_post', $post_id );
	78	+ }
55	79
	80	+
	81	+ /**
	82	+ * Clean an SVG uploaded to a custom font.
	83	+ *
	84	+ * Only runs for custom font uploads, the one place this add-on allows SVG. The file keeps
	85	+ * only its font markup; an SVG that is not a font is refused. SVG uploads anywhere else
	86	+ * are not touched here: WordPress refuses them unless another plugin allows SVG.
	87	+ *
	88	+ * @param array $file Upload data from `$_FILES`.
	89	+ * @return array
	90	+ */
	91	+ public function sanitize_svg_upload( $file ) {
	92	+ if ( empty( $file['name'] ) || empty( $file['tmp_name'] ) || ! empty( $file['error'] ) ) {
	93	+ return $file;
	94	+ }
	95	+ if ( 'svg' !== strtolower( pathinfo( $file['name'], PATHINFO_EXTENSION ) ) ) {
	96	+ return $file;
	97	+ }
	98	+ if ( ! $this->is_custom_font_upload() ) {
	99	+ return $file;
	100	+ }
	101	+
	102	+ require_once __DIR__ . '/Svg_Font_Sanitizer.php';
	103	+ $sanitized = Svg_Font_Sanitizer::sanitize_file( $file['tmp_name'] );
	104	+ if ( is_wp_error( $sanitized ) ) {
	105	+ $file['error'] = $sanitized->get_error_message();
	106	+ }
	107	+ return $file;
	108	+ }
	109	+
	110	+ /**
	111	+ * Font weight as stored and printed: 100-900 in steps of 100, normal or bold.
	112	+ *
	113	+ * @param string $weight Raw weight.
	114	+ * @return string
	115	+ */
	116	+ public static function sanitize_font_weight( $weight ) {
	117	+ $weight = strtolower( trim( (string) $weight ) );
	118	+ if ( in_array( $weight, array( 'normal', 'bold', '100', '200', '300', '400', '500', '600', '700', '800', '900' ), true ) ) {
	119	+ return $weight;
	120	+ }
	121	+ return 'normal';
	122	+ }
	123	+
	124	+ /**
	125	+ * Font family name safe to print inside a CSS string or a style attribute.
	126	+ *
	127	+ * @param string $font_name Post title of the font.
	128	+ * @return string
	129	+ */
	130	+ public static function sanitize_font_family( $font_name ) {
	131	+ return str_replace( array( '"', '\\', ';', '{', '}', '<', '>' ), '', (string) $font_name );
	132	+ }
	133	+
56	134	// Template Heading Add
57	135	public function templates_table_head( $defaults ) {
58	136	$type_array = array(
59	137	'preview' => '<span class="ultp-custom-font-preview-th">' . __( 'Preview', 'ultimate-post' ) . '</span>',
		@@ -88,10 +166,10 @@
88	166	if ( $settings['eot'] ) {
89	167	array_push( $font_src, 'url(' . esc_url( $settings['eot'] ) . ') format("eot")' );
90	168	}
91	169	$font_face = '@font-face {
92		- font-family: "' . $font_name . '";
93		- font-weight: ' . $settings['weight'] . ';
	170	+ font-family: "' . self::sanitize_font_family( $font_name ) . '";
	171	+ font-weight: ' . self::sanitize_font_weight( isset( $settings['weight'] ) ? $settings['weight'] : '' ) . ';
94	172	src: ' . implode( ', ', $font_src ) . ';
95	173	}';
96	174
97	175	return $font_face;
		@@ -116,9 +194,9 @@
116	194	if ( $value['eot'] ) {
117	195	$eot = true; }
118	196	}
119	197	$font_face = $this->get_font_face( $settings[0], get_the_title( $post_id ) );
120		- echo '<style type="text/css">' . $font_face . '</style>'; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
	198	+ echo '<style type="text/css">' . $font_face . '</style>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- CSS from get_font_face(): URLs pass esc_url(), family and weight pass sanitize_font_family()/sanitize_font_weight().
121	199
122	200	switch ( $column_id ) {
123	201	case 0:
124	202	echo '<span class="ultp-custom-font-preview" style="font-family: ' . esc_attr( get_the_title( $post_id ) ) . '">' . esc_html__( 'The quick brown fox jumps over the lazy dog.', 'ultimate-post' ) . '</span>';
		@@ -160,9 +238,9 @@
160	238	?>
161	239	<div class="ultp-custom-font-container ultp-custom-font<?php echo empty( $arr ) ? '-copy' : ''; ?>">
162	240	<div class="ultp-custom-font-heading">
163	241	<div>
164		- <label class="font-label"><?php echo esc_html__( 'Weight: ', 'ultimate-post' ); ?> <span class="ultp-custom-font-weight"> <?php echo esc_html__( isset( $arr['weight'] ) ? $arr['weight'] : '', 'ultimate-post' ); ?> </span></label>
	242	+ <label class="font-label"><?php echo esc_html__( 'Weight: ', 'ultimate-post' ); ?> <span class="ultp-custom-font-weight"> <?php echo esc_html( isset( $arr['weight'] ) ? $arr['weight'] : '' ); ?> </span></label>
165	243	<select name="weight[]">
166	244	<?php $weight = isset( $arr['weight'] ) ? $arr['weight'] : ''; ?>
167	245	<option <?php selected( $weight, 'normal' ); ?> value="normal"><?php echo esc_html__( 'Normal', 'ultimate-post' ); ?></option>
168	246	<option <?php selected( $weight, '100' ); ?> value="100"><?php echo esc_html__( '100', 'ultimate-post' ); ?></option>
		@@ -176,16 +254,16 @@
176	254	<option <?php selected( $weight, '900' ); ?> value="900"><?php echo esc_html__( '900', 'ultimate-post' ); ?></option>
177	255	</select>
178	256	</div>
179	257	<?php
180		- $styles = '';
	258	+ $preview_style = '';
181	259	if ( ! empty( $arr ) ) {
182	260	$font_face = $this->get_font_face( $arr, $font_name );
183		- echo '<style type="text/css">' . $font_face . '</style>'; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
184		- $styles = 'style="font-family: ' . $font_name . '; font-weight: ' . $arr['weight'] . ' "';
	261	+ echo '<style type="text/css">' . $font_face . '</style>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- CSS from get_font_face(): URLs pass esc_url(), family and weight pass sanitize_font_family()/sanitize_font_weight().
	262	+ $preview_style = 'font-family: "' . self::sanitize_font_family( $font_name ) . '"; font-weight: ' . self::sanitize_font_weight( isset( $arr['weight'] ) ? $arr['weight'] : '' );
185	263	}
186	264	?>
187		- <span <?php echo $styles; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> class="ultp-custom-font-preview"><?php echo esc_html__( 'The quick brown fox jumps over the lazy dog', 'ultimate-post' ); ?></span>
	265	+ <span <?php echo '' !== $preview_style ? 'style="' . esc_attr( $preview_style ) . '"' : ''; ?> class="ultp-custom-font-preview"><?php echo esc_html__( 'The quick brown fox jumps over the lazy dog', 'ultimate-post' ); ?></span>
188	266	<div class="ultp-custom-font-actions">
189	267	<span class="ultp-custom-font-edit"><span class="dashicons dashicons-edit"></span><?php echo esc_html__( 'Edit', 'ultimate-post' ); ?></span>
190	268	<span class="ultp-custom-font-close"><span class="dashicons dashicons-no-alt"></span><?php echo esc_html__( 'Close', 'ultimate-post' ); ?></span>
191	269	<span class="ultp-custom-font-delete"><span class="dashicons dashicons-trash"></span><?php echo esc_html__( 'Delete', 'ultimate-post' ); ?></span>
		@@ -253,14 +331,14 @@
253	331	! empty( $_POST['ttf'][ $i ] ) ||
254	332	! empty( $_POST['svg'][ $i ] ) ||
255	333	! empty( $_POST['eot'][ $i ] ) ) ) {
256	334	$temp = array();
257		- $temp['weight'] = isset( $_POST['weight'][ $i ] ) ? sanitize_text_field( $_POST['weight'][ $i ] ) : '';
258		- $temp['woff'] = isset( $_POST['woff'][ $i ] ) ? sanitize_text_field( $_POST['woff'][ $i ] ) : '';
259		- $temp['woff2'] = isset( $_POST['woff2'][ $i ] ) ? sanitize_text_field( $_POST['woff2'][ $i ] ) : '';
260		- $temp['ttf'] = isset( $_POST['ttf'][ $i ] ) ? sanitize_text_field( $_POST['ttf'][ $i ] ) : '';
261		- $temp['svg'] = isset( $_POST['svg'][ $i ] ) ? sanitize_text_field( $_POST['svg'][ $i ] ) : '';
262		- $temp['eot'] = isset( $_POST['eot'][ $i ] ) ? sanitize_text_field( $_POST['eot'][ $i ] ) : '';
	335	+ $temp['weight'] = self::sanitize_font_weight( sanitize_text_field( $_POST['weight'][ $i ] ) ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- update_post_meta() unslashes; unslashing here would strip backslashes twice.
	336	+ $temp['woff'] = isset( $_POST['woff'][ $i ] ) ? sanitize_text_field( $_POST['woff'][ $i ] ) : ''; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- update_post_meta() unslashes; unslashing here would strip backslashes twice.
	337	+ $temp['woff2'] = isset( $_POST['woff2'][ $i ] ) ? sanitize_text_field( $_POST['woff2'][ $i ] ) : ''; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- update_post_meta() unslashes; unslashing here would strip backslashes twice.
	338	+ $temp['ttf'] = isset( $_POST['ttf'][ $i ] ) ? sanitize_text_field( $_POST['ttf'][ $i ] ) : ''; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- update_post_meta() unslashes; unslashing here would strip backslashes twice.
	339	+ $temp['svg'] = isset( $_POST['svg'][ $i ] ) ? sanitize_text_field( $_POST['svg'][ $i ] ) : ''; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- update_post_meta() unslashes; unslashing here would strip backslashes twice.
	340	+ $temp['eot'] = isset( $_POST['eot'][ $i ] ) ? sanitize_text_field( $_POST['eot'][ $i ] ) : ''; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- update_post_meta() unslashes; unslashing here would strip backslashes twice.
263	341	$arr[] = $temp;
264	342	}
265	343	}
266	344	update_post_meta( $post_id, '__font_settings', $arr );