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fix: 画像ファイルの縦横サイズの取得で Exif Orientation を考慮する (#8014)

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* 画像ファイルの縦横サイズの取得で Exif Orientation を考慮する

* test: Add rotate.jpg test

* Webpublic 画像を返す時のみ Exif Orientation を考慮して縦横サイズを返す

* test: Support orientation
This commit is contained in:
xianon
2021-12-03 11:19:28 +09:00
committed by GitHub
parent f33ded3107
commit 22464c434e
7 changed files with 70 additions and 8 deletions
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5
packages/backend/src/misc/get-file-info.ts
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@ -19,6 +19,7 @@ export type FileInfo = {
};
width?: number;
height?: number;
orientation?: number;
blurhash?: string;
warnings: string[];
};
@ -47,6 +48,7 @@ export async function getFileInfo(path: string): Promise<FileInfo> {
// image dimensions
let width: number | undefined;
let height: number | undefined;
let orientation: number | undefined;
if (['image/jpeg', 'image/gif', 'image/png', 'image/apng', 'image/webp', 'image/bmp', 'image/tiff', 'image/svg+xml', 'image/vnd.adobe.photoshop'].includes(type.mime)) {
const imageSize = await detectImageSize(path).catch(e => {
@ -61,6 +63,7 @@ export async function getFileInfo(path: string): Promise<FileInfo> {
} else if (imageSize.wUnits === 'px') {
width = imageSize.width;
height = imageSize.height;
orientation = imageSize.orientation;
// 制限を超えている画像は octet-stream にする
if (imageSize.width > 16383 || imageSize.height > 16383) {
@ -87,6 +90,7 @@ export async function getFileInfo(path: string): Promise<FileInfo> {
type,
width,
height,
orientation,
blurhash,
warnings,
};
@ -163,6 +167,7 @@ async function detectImageSize(path: string): Promise<{
height: number;
wUnits: string;
hUnits: string;
orientation?: number;
}> {
const readable = fs.createReadStream(path);
const imageSize = await probeImageSize(readable);