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[stable30] fix: Properly calculate intermediate icon for touch icon generation #49405

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merged 1 commit into from
Nov 20, 2024
Merged

[stable30] fix: Properly calculate intermediate icon for touch icon generation #49405

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29 changes: 12 additions & 17 deletions apps/theming/lib/IconBuilder.php
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,7 @@
$appIconContent = $appIcon->getContent();
$mime = $appIcon->getMimeType();
} else {
$appIconContent = file_get_contents($appIcon);

Check failure on line 116 in apps/theming/lib/IconBuilder.php

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TaintedFile 

apps/theming/lib/IconBuilder.php:116:40: TaintedFile: Detected tainted file handling (see https://psalm.dev/255)
$mime = mime_content_type($appIcon);
}

Expand All @@ -124,9 +124,10 @@
$color = $this->themingDefaults->getColorPrimary();

// generate background image with rounded corners
$cornerRadius = 0.2 * $size;
$background = '<?xml version="1.0" encoding="UTF-8"?>' .
'<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:cc="http://creativecommons.org/ns#" width="512" height="512" xmlns:xlink="http://www.w3.org/1999/xlink">' .
'<rect x="0" y="0" rx="100" ry="100" width="512" height="512" style="fill:' . $color . ';" />' .
'<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:cc="http://creativecommons.org/ns#" width="' . $size . '" height="' . $size . '" xmlns:xlink="http://www.w3.org/1999/xlink">' .
'<rect x="0" y="0" rx="' . $cornerRadius . '" ry="' . $cornerRadius . '" width="' . $size. '" height="' . $size . '" style="fill:' . $color . ';" />' .
'</svg>';
// resize svg magic as this seems broken in Imagemagick
if ($mime === "image/svg+xml" || substr($appIconContent, 0, 4) === "<svg") {
Expand All @@ -136,22 +137,17 @@
$svg = $appIconContent;
}
$tmp = new Imagick();
$tmp->setBackgroundColor(new ImagickPixel('transparent'));
$tmp->setResolution(72, 72);
$tmp->readImageBlob($svg);
$x = $tmp->getImageWidth();
$y = $tmp->getImageHeight();
$res = $tmp->getImageResolution();
$tmp->destroy();

if ($x > $y) {
$max = $x;
} else {
$max = $y;
}

// convert svg to resized image
$appIconFile = new Imagick();
$resX = (int)(512 * $res['x'] / $max * 2.53);
$resY = (int)(512 * $res['y'] / $max * 2.53);
$resX = (int)(72 * $size / $x);
$resY = (int)(72 * $size / $y);
$appIconFile->setResolution($resX, $resY);
$appIconFile->setBackgroundColor(new ImagickPixel('transparent'));
$appIconFile->readImageBlob($svg);
Expand All @@ -166,22 +162,21 @@
) {
$appIconFile->negateImage(false);
}
$appIconFile->scaleImage(512, 512, true);
} else {
$appIconFile = new Imagick();
$appIconFile->setBackgroundColor(new ImagickPixel('transparent'));
$appIconFile->readImageBlob($appIconContent);
$appIconFile->scaleImage(512, 512, true);
}
// offset for icon positioning
$border_w = (int)($appIconFile->getImageWidth() * 0.05);
$border_h = (int)($appIconFile->getImageHeight() * 0.05);
$padding = 0.15;
$border_w = (int)($appIconFile->getImageWidth() * $padding);
$border_h = (int)($appIconFile->getImageHeight() * $padding);
$innerWidth = ($appIconFile->getImageWidth() - $border_w * 2);
$innerHeight = ($appIconFile->getImageHeight() - $border_h * 2);
$appIconFile->adaptiveResizeImage($innerWidth, $innerHeight);
// center icon
$offset_w = (int)(512 / 2 - $innerWidth / 2);
$offset_h = (int)(512 / 2 - $innerHeight / 2);
$offset_w = (int)($size / 2 - $innerWidth / 2);
$offset_h = (int)($size / 2 - $innerHeight / 2);

$finalIconFile = new Imagick();
$finalIconFile->setBackgroundColor(new ImagickPixel('transparent'));
Expand Down Expand Up @@ -211,7 +206,7 @@
if ($imageFile === false || $imageFile === "") {
return false;
}
$svg = file_get_contents($imageFile);

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apps/theming/lib/IconBuilder.php:209:28: TaintedFile: Detected tainted file handling (see https://psalm.dev/255)
if ($svg !== false && $svg !== "") {
$color = $this->util->elementColor($this->themingDefaults->getColorPrimary());
$svg = $this->util->colorizeSvg($svg, $color);
Expand Down
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