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Fix | Slow load times due to svg_dimensions #154

Merged
merged 6 commits into from
Dec 12, 2023
Merged

Fix | Slow load times due to svg_dimensions #154

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ebc0531
refactor svg_dimensions function to calculate dimensions using existi…
sksaju Sep 25, 2023
daadc14
added safe_svg_pre_dimensions filter in the svg_dimensions function
sksaju Nov 27, 2023
cede2e8
fix phpcs issue on fix/75-slow-load-times-due-to-svgdimensions
sksaju Nov 27, 2023
b07176d
Merge branch 'develop' into fix/75-slow-load-times-due-to-svgdimensions
sksaju Nov 27, 2023
58ee0e8
fix php unit test issue
sksaju Dec 12, 2023
d0b5b8a
fix e2e test issue
sksaju Dec 12, 2023
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56 changes: 45 additions & 11 deletions safe-svg.php
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Original file line number Diff line number Diff line change
Expand Up @@ -328,7 +328,7 @@ protected function is_gzipped( $contents ) {
public function fix_admin_preview( $response, $attachment, $meta ) {

if ( 'image/svg+xml' === $response['mime'] ) {
$dimensions = $this->svg_dimensions( get_attached_file( $attachment->ID ) );
$dimensions = $this->svg_dimensions( $attachment->ID );

if ( $dimensions ) {
$response = array_merge( $response, $dimensions );
Expand Down Expand Up @@ -384,7 +384,7 @@ public function fix_admin_preview( $response, $attachment, $meta ) {
*/
public function one_pixel_fix( $image, $attachment_id, $size, $icon ) {
if ( get_post_mime_type( $attachment_id ) === 'image/svg+xml' ) {
$dimensions = $this->svg_dimensions( get_attached_file( $attachment_id ) );
$dimensions = $this->svg_dimensions( $attachment_id );

if ( $dimensions ) {
$image[1] = $dimensions['width'];
Expand Down Expand Up @@ -445,7 +445,7 @@ public function get_image_tag_override( $html, $id, $alt, $title, $align, $size
$width = $size[0];
$height = $size[1];
// phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found, Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
} elseif ( 'full' === $size && $dimensions = $this->svg_dimensions( get_attached_file( $id ) ) ) {
} elseif ( 'full' === $size && $dimensions = $this->svg_dimensions( $id ) ) {
$width = $dimensions['width'];
$height = $dimensions['height'];
} else {
Expand Down Expand Up @@ -485,7 +485,7 @@ public function skip_svg_regeneration( $metadata, $attachment_id ) {
$relative_path = str_replace( trailingslashit( $upload_dir['basedir'] ), '', $svg_path );
$filename = basename( $svg_path );

$dimensions = $this->svg_dimensions( $svg_path );
$dimensions = $this->svg_dimensions( $attachment_id );

if ( ! $dimensions ) {
return $metadata;
Expand Down Expand Up @@ -560,19 +560,43 @@ public function metadata_error_fix( $data, $post_id ) {
/**
* Get SVG size from the width/height or viewport.
*
* @param string|false $svg The file path to where the SVG file should be, false otherwise.
* @param integer $attachment_id The attachment ID of the SVG being processed.
*
* @return array|bool
*/
protected function svg_dimensions( $svg ) {
protected function svg_dimensions( $attachment_id ) {
/**
* Calculate SVG dimensions and orientation.
*
* This filter allows you to implement your own sizing. By returning a non-false
* value, it will short-circuit this function and return your set value.
*
* @param boolean Default value of the filter.
* @param integer $attachment_id The attachment ID of the SVG being processed.
*
* @return array|false An array of SVG dimensions and orientation or false.
*/
$short_circuit = apply_filters( 'safe_svg_pre_dimensions', false, $attachment_id );

if ( false !== $short_circuit ) {
return $short_circuit;
}
Comment on lines +568 to +583
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praise (non-blocking): Nice work here!


if ( ! function_exists( 'simplexml_load_file' ) ) {
return false;
}

$svg = @simplexml_load_file( $svg ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$width = 0;
$height = 0;
if ( $svg ) {
$svg = get_attached_file( $attachment_id );
$metadata = wp_get_attachment_metadata( $attachment_id );
$width = 0;
$height = 0;

if ( $svg && ! empty( $metadata['width'] ) && empty( $metadata['height'] ) ) {
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@dkotter dkotter Jan 10, 2024 •
edited
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@sksaju Sorry, I know this is late and this PR is already merged but in looking at this prior to prepping the next release, on the surface it seems like this conditional is not correct. It checks $svg isn't null and then checks if the width isn't empty and the height is empty. Unless I'm thinking of this wrong, shouldn't it be checking if both width and height aren't empty, so like this:

if ( $svg && ! empty( $metadata['width'] ) && ! empty( $metadata['height'] ) ) {

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@dkotter Yeah it should be ! empty, I've created a PR #174 to fix it, Apologies & Thanks

$width = floatval( $metadata['width'] );
$height = floatval( $metadata['height'] );
} elseif ( $svg ) {
$svg = @simplexml_load_file( $svg ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged

$attributes = $svg->attributes();

if ( isset( $attributes->viewBox ) ) { // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
Expand Down Expand Up @@ -627,11 +651,21 @@ protected function svg_dimensions( $svg ) {
}
}

return array(
$dimensions = array(
'width' => $width,
'height' => $height,
'orientation' => ( $width > $height ) ? 'landscape' : 'portrait',
);

/**
* Calculate SVG dimensions and orientation.
*
* @param array $dimensions An array containing width, height, and orientation.
* @param string $svg The file path to the SVG.
*
* @return array An array of SVG dimensions and orientation.
*/
return apply_filters( 'safe_svg_dimensions', $dimensions, $svg );
Comment on lines +659 to +668
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@sksaju @10up/open-source-practice I like this filter, but what are your thoughts on introducing a safe_svg_pre_dimensions filter also?

My thinking is, if someone wants to override this value, forcing them through the overhead of loading and sizing the SVG seems a little odd.

Something like the following at the top of this method to allow the short-circuit might be useful:

/**
* Calculate SVG dimensions and orientation.
*
* This filter allows you to implement your own sizing. By returning a non-false
* value, it will short-circuit this function and return your set value.
*
* @param array  $attachment_id The attachment ID of the SVG being processed.
*
* @return array|false An array of SVG dimensions and orientation or false.
*/
$short_circuit = apply_filters( 'safe_svg_pre_dimensions', '__return_false' );

if ( false !== $short_circuit ) {
    return $short_circuit;
}

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Thanks @darylldoyle I've updated the PR, please take a look again and let me know your feedback. could you also let me know how to fix this https://github.com/10up/safe-svg/actions/runs/7004501147/job/19052370329?pr=154 UnitTest issue? Thanks

}

/**
Expand Down
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