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Prevent image upscaling

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This commit is contained in:
Evert Prants 2019-09-07 19:41:32 +03:00
parent 39d3d568e8
commit 94aabcd07e
Signed by: evert
GPG Key ID: 1688DA83D222D0B5
1 changed files with 7 additions and 2 deletions
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9
server/api/image.js
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@ -140,12 +140,17 @@ async function uploadImage (identifier, fields, files) {
return bailOut(file, 'Avatars can only have an aspect ratio of 1:1') return bailOut(file, 'Avatars can only have an aspect ratio of 1:1')
} }
if (fields.scaleX) { // Upscaling is not allowed
if ((fields.scaleX != null && fields.scaleX > 1) || (fields.scaleY != null && fields.scaleY > 1)) {
return bailOut(file, 'Image upscaling is not allowed.')
}
if (fields.scaleX != null) {
fields.x *= fields.scaleX fields.x *= fields.scaleX
fields.width *= fields.scaleX fields.width *= fields.scaleX
} }
if (fields.scaleY) { if (fields.scaleY != null) {
fields.y *= fields.scaleY fields.y *= fields.scaleY
fields.height *= fields.scaleY fields.height *= fields.scaleY
} }