1 | var createFileFilter = require('./lib/file-filter')
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2 | var createMiddleware = require('./lib/middleware')
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3 |
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4 | function _middleware (limits, fields, fileStrategy) {
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5 | return createMiddleware(function setup () {
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6 | return {
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7 | fields: fields,
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8 | limits: limits,
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9 | fileFilter: createFileFilter(fields),
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10 | fileStrategy: fileStrategy
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11 | }
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12 | })
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13 | }
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14 |
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15 | function Multer (options) {
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16 | this.limits = options.limits
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17 | }
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18 |
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19 | Multer.prototype.single = function (name) {
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20 | return _middleware(this.limits, [{ name: name, maxCount: 1 }], 'VALUE')
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21 | }
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22 |
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23 | Multer.prototype.array = function (name, maxCount) {
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24 | return _middleware(this.limits, [{ name: name, maxCount: maxCount }], 'ARRAY')
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25 | }
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26 |
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27 | Multer.prototype.fields = function (fields) {
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28 | return _middleware(this.limits, fields, 'OBJECT')
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29 | }
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30 |
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31 | Multer.prototype.none = function () {
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32 | return _middleware(this.limits, [], 'NONE')
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33 | }
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34 |
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35 | Multer.prototype.any = function () {
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36 | function setup () {
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37 | return {
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38 | fields: [],
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39 | limits: this.limits,
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40 | fileFilter: function () {},
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41 | fileStrategy: 'ARRAY'
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42 | }
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43 | }
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44 |
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45 | return createMiddleware(setup.bind(this))
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46 | }
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47 |
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48 | function multer (options) {
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49 | if (options === undefined) options = {}
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50 | if (options === null) throw new TypeError('Expected object for arugment "options", got null')
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51 | if (typeof options !== 'object') throw new TypeError('Expected object for arugment "options", got ' + (typeof options))
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52 |
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53 | if (options.dest || options.storage || options.fileFilter) {
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54 | throw new Error('The "dest", "storage" and "fileFilter" options where removed in Multer 2.0. Please refer to the latest documentation for new usage.')
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55 | }
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56 |
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57 | return new Multer(options)
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58 | }
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59 |
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60 | module.exports = multer
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