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import { urlSafeBase64Encode } from './base64'
export interface ImageViewOptions {
mode: number
format?: string
w?: number
h?: number
q?: number
}
export interface ImageWatermark {
image: string
mode: number
fontsize?: number
dissolve?: number
dx?: number
dy?: number
gravity?: string
text?: string
font?: string
fill?: string
}
export interface ImageMogr2 {
'auto-orient'?: boolean
strip?: boolean
thumbnail?: number
crop?: number
gravity?: number
format?: number
blur?: number
quality?: number
rotate?: number
}
type Pipeline =
| (ImageWatermark & { fop: 'watermark' })
| (ImageViewOptions & { fop: 'imageView2' })
| (ImageMogr2 & { fop: 'imageMogr2' })
export interface Entry {
domain: string
key: string
}
function getImageUrl(key: string, domain: string) {
key = encodeURIComponent(key)
Eif (domain.slice(domain.length - 1) !== '/') {
domain += '/'
}
return domain + key
}
export function imageView2(op: ImageViewOptions, key?: string, domain?: string) {
Iif (!/^\d$/.test(String(op.mode))) {
throw 'mode should be number in imageView2'
}
const { mode, w, h, q, format } = op
Iif (!w && !h) {
throw 'param w and h is empty in imageView2'
}
let imageUrl = 'imageView2/' + encodeURIComponent(mode)
imageUrl += w ? '/w/' + encodeURIComponent(w) : ''
imageUrl += h ? '/h/' + encodeURIComponent(h) : ''
imageUrl += q ? '/q/' + encodeURIComponent(q) : ''
imageUrl += format ? '/format/' + encodeURIComponent(format) : ''
Eif (key && domain) {
imageUrl = getImageUrl(key, domain) + '?' + imageUrl
}
return imageUrl
}
// invoke the imageMogr2 api of Qiniu
export function imageMogr2(op: ImageMogr2, key?: string, domain?: string) {
const autoOrient = op['auto-orient']
const { thumbnail, strip, gravity, crop, quality, rotate, format, blur } = op
let imageUrl = 'imageMogr2'
imageUrl += autoOrient ? '/auto-orient' : ''
imageUrl += thumbnail ? '/thumbnail/' + encodeURIComponent(thumbnail) : ''
imageUrl += strip ? '/strip' : ''
imageUrl += gravity ? '/gravity/' + encodeURIComponent(gravity) : ''
imageUrl += quality ? '/quality/' + encodeURIComponent(quality) : ''
imageUrl += crop ? '/crop/' + encodeURIComponent(crop) : ''
imageUrl += rotate ? '/rotate/' + encodeURIComponent(rotate) : ''
imageUrl += format ? '/format/' + encodeURIComponent(format) : ''
imageUrl += blur ? '/blur/' + encodeURIComponent(blur) : ''
Eif (key && domain) {
imageUrl = getImageUrl(key, domain) + '?' + imageUrl
}
return imageUrl
}
// invoke the watermark api of Qiniu
export function watermark(op: ImageWatermark, key?: string, domain?: string) {
const mode = op.mode
Iif (!mode) {
throw "mode can't be empty in watermark"
}
let imageUrl = 'watermark/' + mode
if (mode !== 1 && mode !== 2) {
throw 'mode is wrong'
}
Eif (mode === 1) {
const image = op.image
Iif (!image) {
throw "image can't be empty in watermark"
}
imageUrl += image ? '/image/' + urlSafeBase64Encode(image) : ''
}
Iif (mode === 2) {
const { text, font, fontsize, fill } = op
if (!text) {
throw "text can't be empty in watermark"
}
imageUrl += text ? '/text/' + urlSafeBase64Encode(text) : ''
imageUrl += font ? '/font/' + urlSafeBase64Encode(font) : ''
imageUrl += fontsize ? '/fontsize/' + fontsize : ''
imageUrl += fill ? '/fill/' + urlSafeBase64Encode(fill) : ''
}
const { dissolve, gravity, dx, dy } = op
imageUrl += dissolve ? '/dissolve/' + encodeURIComponent(dissolve) : ''
imageUrl += gravity ? '/gravity/' + encodeURIComponent(gravity) : ''
imageUrl += dx ? '/dx/' + encodeURIComponent(dx) : ''
imageUrl += dy ? '/dy/' + encodeURIComponent(dy) : ''
Eif (key && domain) {
imageUrl = getImageUrl(key, domain) + '?' + imageUrl
}
return imageUrl
}
// invoke the imageInfo api of Qiniu
export function imageInfo(key: string, domain: string) {
const url = getImageUrl(key, domain) + '?imageInfo'
return request(url, { method: 'GET' })
}
// invoke the exif api of Qiniu
export function exif(key: string, domain: string) {
const url = getImageUrl(key, domain) + '?exif'
return request(url, { method: 'GET' })
}
export function pipeline(arr: Pipeline[], key?: string, domain?: string) {
const isArray = Object.prototype.toString.call(arr) === '[object Array]'
let option: Pipeline
let errOp = false
let imageUrl = ''
if (isArray) {
for (let i = 0, len = arr.length; i < len; i++) {
option = arr[i]
if (!option.fop) {
throw "fop can't be empty in pipeline"
}
switch (option.fop) {
case 'watermark':
imageUrl += watermark(option) + '|'
break
case 'imageView2':
imageUrl += imageView2(option) + '|'
break
case 'imageMogr2':
imageUrl += imageMogr2(option) + '|'
break
default:
errOp = true
break
}
if (errOp) {
throw 'fop is wrong in pipeline'
}
}
if (key && domain) {
imageUrl = getImageUrl(key, domain) + '?' + imageUrl
const length = imageUrl.length
if (imageUrl.slice(length - 1) === '|') {
imageUrl = imageUrl.slice(0, length - 1)
}
}
return imageUrl
}
throw "pipeline's first param should be array"
}
|