1 | 'use strict'
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2 | const http = require('http')
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3 | const { STATUS_CODES } = http
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4 |
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5 | const Headers = require('./headers.js')
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6 | const Body = require('./body.js')
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7 | const { clone, extractContentType } = Body
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8 |
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9 | const INTERNALS = Symbol('Response internals')
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10 |
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11 | class Response extends Body {
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12 | constructor (body = null, opts = {}) {
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13 | super(body, opts)
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14 |
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15 | const status = opts.status || 200
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16 | const headers = new Headers(opts.headers)
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17 |
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18 | if (body !== null && body !== undefined && !headers.has('Content-Type')) {
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19 | const contentType = extractContentType(body)
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20 | if (contentType)
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21 | headers.append('Content-Type', contentType)
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22 | }
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23 |
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24 | this[INTERNALS] = {
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25 | url: opts.url,
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26 | status,
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27 | statusText: opts.statusText || STATUS_CODES[status],
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28 | headers,
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29 | counter: opts.counter,
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30 | trailer: Promise.resolve(opts.trailer || new Headers()),
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31 | }
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32 | }
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33 |
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34 | get trailer () {
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35 | return this[INTERNALS].trailer
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36 | }
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37 |
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38 | get url () {
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39 | return this[INTERNALS].url || ''
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40 | }
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41 |
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42 | get status () {
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43 | return this[INTERNALS].status
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44 | }
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45 |
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46 | get ok () {
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47 | return this[INTERNALS].status >= 200 && this[INTERNALS].status < 300
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48 | }
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49 |
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50 | get redirected () {
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51 | return this[INTERNALS].counter > 0
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52 | }
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53 |
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54 | get statusText () {
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55 | return this[INTERNALS].statusText
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56 | }
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57 |
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58 | get headers () {
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59 | return this[INTERNALS].headers
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60 | }
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61 |
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62 | clone () {
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63 | return new Response(clone(this), {
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64 | url: this.url,
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65 | status: this.status,
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66 | statusText: this.statusText,
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67 | headers: this.headers,
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68 | ok: this.ok,
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69 | redirected: this.redirected,
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70 | trailer: this.trailer,
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71 | })
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72 | }
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73 |
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74 | get [Symbol.toStringTag] () {
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75 | return 'Response'
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76 | }
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77 | }
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78 |
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79 | module.exports = Response
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80 |
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81 | Object.defineProperties(Response.prototype, {
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82 | url: { enumerable: true },
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83 | status: { enumerable: true },
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84 | ok: { enumerable: true },
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85 | redirected: { enumerable: true },
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86 | statusText: { enumerable: true },
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87 | headers: { enumerable: true },
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88 | clone: { enumerable: true },
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89 | })
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