[IMPROVE] Resize custom emojis on upload instead of saving at max res (#21593)
Kevin Aleman
4 years ago
committed by
GitHub
parent
880546bbf8
commit
c6b7e4fd82
@ -0,0 +1,15 @@ |
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import { Readable } from 'stream'; |
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import sharp from 'sharp'; |
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export type ResizeResult = { |
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data: Buffer; |
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width: number; |
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height: number; |
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} |
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export interface IMediaService { |
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resizeFromBuffer(input: Buffer, width: number, height: number, keepType: boolean, blur: boolean, enlarge: boolean, fit?: keyof sharp.FitEnum | undefined): Promise<ResizeResult>; |
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resizeFromStream(input: Readable, width: number, height: number, keepType: boolean, blur: boolean, enlarge: boolean, fit?: keyof sharp.FitEnum | undefined): Promise<ResizeResult>; |
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isImage(buff: Buffer): boolean; |
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} |
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@ -0,0 +1,89 @@ |
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import { Readable } from 'stream'; |
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import fileType from 'file-type'; |
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import sharp from 'sharp'; |
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import isSvg from 'is-svg'; |
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import { ServiceClass } from '../../sdk/types/ServiceClass'; |
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import { IMediaService, ResizeResult } from '../../sdk/types/IMediaService'; |
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export class MediaService extends ServiceClass implements IMediaService { |
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protected name = 'media'; |
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private imageExts = new Set([ |
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'jpg', |
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'png', |
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'gif', |
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'webp', |
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'flif', |
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'cr2', |
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'tif', |
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'bmp', |
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'jxr', |
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'psd', |
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'ico', |
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'bpg', |
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'jp2', |
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'jpm', |
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'jpx', |
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'heic', |
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'cur', |
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'dcm', |
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]); |
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async resizeFromBuffer(input: Buffer, width: number, height: number, keepType: boolean, blur: boolean, enlarge: boolean, fit?: keyof sharp.FitEnum | undefined): Promise<ResizeResult> { |
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const transformer = sharp(input) |
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.resize({ width, height, fit, withoutEnlargement: !enlarge }); |
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if (!keepType) { |
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transformer.jpeg(); |
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} |
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if (blur) { |
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transformer.blur(); |
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} |
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const { data, info: { width: widthInfo, height: heightInfo } } = await transformer.toBuffer({ resolveWithObject: true }); |
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return { |
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data, |
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width: widthInfo, |
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height: heightInfo, |
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}; |
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} |
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async resizeFromStream(input: Readable, width: number, height: number, keepType: boolean, blur: boolean, enlarge: boolean, fit?: keyof sharp.FitEnum | undefined): Promise<ResizeResult> { |
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const transformer = sharp() |
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.resize({ width, height, fit, withoutEnlargement: !enlarge }); |
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if (!keepType) { |
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transformer.jpeg(); |
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} |
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if (blur) { |
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transformer.blur(); |
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} |
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const result = transformer.toBuffer({ resolveWithObject: true }); |
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input.pipe(transformer); |
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const { data, info: { width: widthInfo, height: heightInfo } } = await result; |
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return { |
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data, |
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width: widthInfo, |
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height: heightInfo, |
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}; |
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} |
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isImage(buff: Buffer): boolean { |
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const data = fileType(buff); |
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if (!data?.ext) { |
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return false || this.isSvgImage(buff); |
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} |
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return this.imageExts.has(data.ext) || this.isSvgImage(buff); |
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} |
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isSvgImage(buff: Buffer): boolean { |
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return isSvg(buff); |
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} |
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} |
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