1 | 'use strict'
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2 |
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3 | var jsonSafeStringify = require('json-stringify-safe')
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4 | , crypto = require('crypto')
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5 |
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6 | var defer = typeof setImmediate === 'undefined'
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7 | ? process.nextTick
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8 | : setImmediate
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9 |
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10 | function paramsHaveRequestBody(params) {
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11 | return (
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12 | params.body ||
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13 | params.requestBodyStream ||
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14 | (params.json && typeof params.json !== 'boolean') ||
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15 | params.multipart
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16 | )
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17 | }
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18 |
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19 | function safeStringify (obj, replacer) {
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20 | var ret
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21 | try {
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22 | ret = JSON.stringify(obj, replacer)
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23 | } catch (e) {
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24 | ret = jsonSafeStringify(obj, replacer)
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25 | }
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26 | return ret
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27 | }
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28 |
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29 | function md5 (str) {
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30 | return crypto.createHash('md5').update(str).digest('hex')
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31 | }
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32 |
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33 | function isReadStream (rs) {
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34 | return rs.readable && rs.path && rs.mode
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35 | }
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36 |
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37 | function toBase64 (str) {
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38 | return (new Buffer(str || '', 'utf8')).toString('base64')
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39 | }
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40 |
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41 | function copy (obj) {
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42 | var o = {}
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43 | Object.keys(obj).forEach(function (i) {
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44 | o[i] = obj[i]
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45 | })
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46 | return o
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47 | }
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48 |
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49 | function version () {
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50 | var numbers = process.version.replace('v', '').split('.')
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51 | return {
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52 | major: parseInt(numbers[0], 10),
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53 | minor: parseInt(numbers[1], 10),
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54 | patch: parseInt(numbers[2], 10)
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55 | }
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56 | }
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57 |
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58 | exports.paramsHaveRequestBody = paramsHaveRequestBody
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59 | exports.safeStringify = safeStringify
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60 | exports.md5 = md5
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61 | exports.isReadStream = isReadStream
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62 | exports.toBase64 = toBase64
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63 | exports.copy = copy
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64 | exports.version = version
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65 | exports.defer = defer
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