root / HServer / 00.Server / 00.Program / node_modules / multer / index.js
이력 | 보기 | 이력해설 | 다운로드 (2.48 KB)
| 1 | 39 | HKM | var makeError = require('./lib/make-error') |
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| 2 | var makeMiddleware = require('./lib/make-middleware') |
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| 3 | |||
| 4 | var diskStorage = require('./storage/disk') |
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| 5 | var memoryStorage = require('./storage/memory') |
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| 6 | |||
| 7 | function allowAll (req, file, cb) { |
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| 8 | cb(null, true) |
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| 9 | } |
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| 10 | |||
| 11 | function Multer (options) { |
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| 12 | if (options.storage) {
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| 13 | this.storage = options.storage
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| 14 | } else if (options.dest) { |
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| 15 | this.storage = diskStorage({ destination: options.dest }) |
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| 16 | } else {
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| 17 | this.storage = memoryStorage()
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| 18 | } |
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| 19 | |||
| 20 | this.limits = options.limits
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| 21 | this.preservePath = options.preservePath
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| 22 | this.fileFilter = options.fileFilter || allowAll
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| 23 | } |
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| 24 | |||
| 25 | Multer.prototype._makeMiddleware = function (fields, fileStrategy) { |
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| 26 | function setup () { |
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| 27 | var fileFilter = this.fileFilter |
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| 28 | var filesLeft = Object.create(null) |
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| 29 | |||
| 30 | fields.forEach(function (field) {
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| 31 | if (typeof field.maxCount === 'number') { |
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| 32 | filesLeft[field.name] = field.maxCount |
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| 33 | } else {
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| 34 | filesLeft[field.name] = Infinity
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| 35 | } |
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| 36 | }) |
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| 37 | |||
| 38 | function wrappedFileFilter (req, file, cb) { |
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| 39 | if ((filesLeft[file.fieldname] || 0) <= 0) { |
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| 40 | return cb(makeError('LIMIT_UNEXPECTED_FILE', file.fieldname)) |
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| 41 | } |
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| 42 | |||
| 43 | filesLeft[file.fieldname] -= 1
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| 44 | fileFilter(req, file, cb) |
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| 45 | } |
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| 46 | |||
| 47 | return {
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| 48 | limits: this.limits, |
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| 49 | preservePath: this.preservePath, |
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| 50 | storage: this.storage, |
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| 51 | fileFilter: wrappedFileFilter,
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| 52 | fileStrategy: fileStrategy
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| 53 | } |
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| 54 | } |
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| 55 | |||
| 56 | return makeMiddleware(setup.bind(this)) |
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| 57 | } |
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| 58 | |||
| 59 | Multer.prototype.single = function (name) { |
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| 60 | return this._makeMiddleware([{ name: name, maxCount: 1 }], 'VALUE') |
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| 61 | } |
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| 62 | |||
| 63 | Multer.prototype.array = function (name, maxCount) { |
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| 64 | return this._makeMiddleware([{ name: name, maxCount: maxCount }], 'ARRAY') |
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| 65 | } |
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| 66 | |||
| 67 | Multer.prototype.fields = function (fields) { |
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| 68 | return this._makeMiddleware(fields, 'OBJECT') |
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| 69 | } |
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| 70 | |||
| 71 | Multer.prototype.none = function () { |
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| 72 | return this._makeMiddleware([], 'NONE') |
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| 73 | } |
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| 74 | |||
| 75 | Multer.prototype.any = function () { |
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| 76 | function setup () { |
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| 77 | return {
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| 78 | limits: this.limits, |
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| 79 | preservePath: this.preservePath, |
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| 80 | storage: this.storage, |
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| 81 | fileFilter: this.fileFilter, |
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| 82 | fileStrategy: 'ARRAY' |
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| 83 | } |
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| 84 | } |
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| 85 | |||
| 86 | return makeMiddleware(setup.bind(this)) |
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| 87 | } |
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| 88 | |||
| 89 | function multer (options) { |
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| 90 | if (options === undefined) { |
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| 91 | return new Multer({}) |
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| 92 | } |
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| 93 | |||
| 94 | if (typeof options === 'object' && options !== null) { |
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| 95 | return new Multer(options) |
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| 96 | } |
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| 97 | |||
| 98 | throw new TypeError('Expected object for argument options') |
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| 99 | } |
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| 100 | |||
| 101 | module.exports = multer |
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| 102 | module.exports.diskStorage = diskStorage |
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| 103 | module.exports.memoryStorage = memoryStorage |