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fix

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This commit is contained in:
手瓜一十雪
2025-05-12 19:29:40 +08:00
parent 440baccd2a
commit ba6a85142a
1 changed files with 15 additions and 5 deletions
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20
src/image-size/index.ts
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@@ -23,10 +23,14 @@ interface ImageParser {
// 魔术匹配
function matchMagic(buffer: Buffer, magic: number[], offset = 0): boolean {
if (buffer.length < offset + magic.length) return false;
if (buffer.length < offset + magic.length) {
return false;
}
for (let i = 0; i < magic.length; i++) {
if (buffer[offset + i] !== magic[i]) return false;
if (buffer[offset + i] !== magic[i]) {
return false;
}
}
return true;
}
@@ -46,7 +50,9 @@ class PngParser implements ImageParser {
stream.once('error', reject);
stream.once('readable', () => {
const buf = stream.read(24) as Buffer;
if (!buf || buf.length < 24) return resolve(undefined);
if (!buf || buf.length < 24) {
return resolve(undefined);
}
if (this.canParse(buf)) {
const width = buf.readUInt32BE(16);
const height = buf.readUInt32BE(20);
@@ -229,7 +235,9 @@ class GifParser implements ImageParser {
stream.once('error', reject);
stream.once('readable', () => {
const buf = stream.read(10) as Buffer;
if (!buf || buf.length < 10) return resolve(undefined);
if (!buf || buf.length < 10) {
return resolve(undefined);
}
if (this.canParse(buf)) {
const width = buf.readUInt16LE(6);
const height = buf.readUInt16LE(8);
@@ -385,7 +393,9 @@ export async function imageSizeFromFile(filePath: string): Promise<ImageSize | u
// 先检测类型
const type = await detectImageType(filePath);
const parser = parsers.find(p => p.type === type);
if (!parser) return undefined;
if (!parser) {
return undefined;
}
// 用流式方式解析尺寸
const stream = fs.createReadStream(filePath);