Use Unsplash API (#301)

* Add unsplash-js, isomorphic-fetch

* /unsplash route/handling

* RandomImage use unsplash api

* Implement Photographer accredidation

* Add referral link

* Fetch photographer profile_url from unsplash api

* Change credit copy

* Add PhotoCredit component

components/Editor.js

@@ -175,8 +175,15 @@ class Editor extends React.Component {
     this.updateSetting('language', language.mime || language.mode)
   }
 
-  updateBackground(changes, cb) {
-    this.setState(changes, cb)
+  updateBackground({ photographer, ...changes }) {
+    if (photographer) {
+      this.setState(({ code = DEFAULT_CODE }) => ({
+        ...changes,
+        code: code + `\n\n// Photo by ${photographer.name} on Unsplash`
+      }))
+    } else {
+      this.setState(changes)
+    }
   }
 
   render() {

components/ImagePicker.js

@@ -2,6 +2,7 @@ import React from 'react'
 import ReactCrop, { makeAspectCrop } from 'react-image-crop'
 
 import RandomImage from './RandomImage'
+import PhotoCredit from './PhotoCredit'
 import { fileToDataURL } from '../lib/util'
 
 const getCroppedImg = (imageDataURL, pixelCrop) => {
@@ -31,7 +32,7 @@ const getCroppedImg = (imageDataURL, pixelCrop) => {
   })
 }
 
-const INITIAL_STATE = { crop: null, imageAspectRatio: null, pixelCrop: null }
+const INITIAL_STATE = { crop: null, imageAspectRatio: null, pixelCrop: null, photographer: null }
 
 export default class extends React.Component {
   constructor(props) {
@@ -88,11 +89,17 @@ export default class extends React.Component {
     })
   }
 
-  selectImage(e) {
+  selectImage(e, { photographer }) {
     const file = e.target ? e.target.files[0] : e
 
     return fileToDataURL(file).then(dataURL =>
-      this.props.onChange({ backgroundImage: dataURL, backgroundImageSelection: null })
+      this.setState({ photographer }, () => {
+        this.props.onChange({
+          backgroundImage: dataURL,
+          backgroundImageSelection: null,
+          photographer
+        })
+      })
     )
   }
 
@@ -173,6 +180,7 @@ export default class extends React.Component {
               minWidth={10}
               keepSelection
             />
+            {this.state.photographer && <PhotoCredit photographer={this.state.photographer} />}
           </div>
           <style jsx>
             {`

components/PhotoCredit.js

@@ -0,0 +1,27 @@
+import React from 'react'
+
+export default ({ photographer }) => (
+  <div className="photo-credit">
+    Photo by{' '}
+    <a href={`${photographer.profile_url}?utm_source=carbon&utm_medium=referral`}>
+      {photographer.name}
+    </a>
+    <style jsx>
+      {`
+        .photo-credit {
+          cursor: unset;
+          user-select: none;
+          text-align: left;
+          font-size: 10px;
+          color: #aaa;
+          margin-bottom: -2px;
+        }
+
+        .photo-credit a {
+          cursor: pointer;
+          text-decoration: underline;
+        }
+      `}
+    </style>
+  </div>
+)

components/RandomImage.js

@@ -2,25 +2,33 @@ import React from 'react'
 import axios from 'axios'
 import Spinner from 'react-spinner'
 
-import { range, fileToDataURL } from '../lib/util'
-
-const RAND_RANGE = 1000000
-const UPDATE_SIZE = 20
-const WALLPAPER_COLLECTION_ID = 136026
-const RANDOM_WALLPAPER_URL = `https://source.unsplash.com/collection/${WALLPAPER_COLLECTION_ID}/240x320`
+import PhotoCredit from './PhotoCredit'
+import { fileToDataURL } from '../lib/util'
+
+const downloadThumbnailImage = img => {
+  return axios
+    .get(img.url, { responseType: 'blob' })
+    .then(res => res.data)
+    .then(fileToDataURL)
+    .then(dataURL => Object.assign(img, { dataURL }))
+}
 
-const largerImage = url => url.replace(/w=\d+/, 'w=1920').replace(/&h=\d+/, '')
+const getImageDownloadUrl = img =>
+  axios.get(`/unsplash/download/${img.id}`).then(res => res.data.url)
 
-export default class RandomImage extends React.Component {
+class RandomImage extends React.Component {
   constructor(props) {
     super(props)
     this.state = { cacheIndex: 0, loading: false }
     this.selectImage = this.selectImage.bind(this)
     this.updateCache = this.updateCache.bind(this)
-    this.getImage = this.getImage.bind(this)
+    this.getImages = this.getImages.bind(this)
     this.nextImage = this.nextImage.bind(this)
   }
 
+  cache = []
+  imageUrls = {}
+
   // fetch images in browser (we require window.FileReader)
   componentDidMount() {
     // clear cache when remounted
@@ -28,38 +36,25 @@ export default class RandomImage extends React.Component {
     this.updateCache()
   }
 
-  async getImage() {
-    // circumvent browser caching
-    const sig = Math.floor(Math.random() * RAND_RANGE)
-
-    const res = await axios.get(`${RANDOM_WALLPAPER_URL}?sig=${sig}`, { responseType: 'blob' })
-
-    // image already in cache?
-    if (this.imageUrls[res.request.responseURL]) return undefined
-
-    this.imageUrls[res.request.responseURL] = true
-    return {
-      url: res.request.responseURL,
-      dataURL: await fileToDataURL(res.data)
-    }
+  async getImages() {
+    const imageUrls = await axios.get('/unsplash/random')
+    return Promise.all(imageUrls.data.map(downloadThumbnailImage))
   }
 
-  cache = []
-  imageUrls = {}
-
   selectImage() {
+    const image = this.cache[this.state.cacheIndex]
+
     this.setState({ loading: true })
-    axios
-      .get(largerImage(this.cache[this.state.cacheIndex].url), { responseType: 'blob' })
+    getImageDownloadUrl(image)
+      .then(url => axios.get(url, { responseType: 'blob' }))
       .then(res => res.data)
-      .then(this.props.onChange)
+      .then(blob => this.props.onChange(blob, image))
       .then(() => this.setState({ loading: false }))
   }
 
   updateCache() {
     this.setState({ loading: true })
-    Promise.all(range(UPDATE_SIZE).map(this.getImage))
-      .then(imgs => imgs.filter(img => img)) // remove null
+    this.getImages()
       .then(imgs => (this.cache = this.cache.concat(imgs)))
       .then(() => this.setState({ loading: false }))
   }
@@ -75,6 +70,8 @@ export default class RandomImage extends React.Component {
   }
 
   render() {
+    const photographer =
+      this.cache[this.state.cacheIndex] && this.cache[this.state.cacheIndex].photographer
     const bgImage = this.cache[this.state.cacheIndex] && this.cache[this.state.cacheIndex].dataURL
 
     return (
@@ -84,14 +81,16 @@ export default class RandomImage extends React.Component {
           <span onClick={this.nextImage}>Try Another</span>
         </div>
         <div className="image">{this.state.loading && <Spinner />}</div>
+        {photographer && <PhotoCredit photographer={photographer} />}
         <style jsx>
           {`
             .image {
               width: 100%;
-              height: 120px;
+              height: 140px;
               background: url(${bgImage});
               background-size: cover;
               background-repeat: no-repeat;
+              margin-bottom: 4px;
             }
 
             .controls {
@@ -111,3 +110,5 @@ export default class RandomImage extends React.Component {
     )
   }
 }
+
+export default RandomImage

handlers/unsplash.js

@@ -0,0 +1,40 @@
+require('isomorphic-fetch')
+const { default: Unsplash, toJson } = require('unsplash-js')
+
+const WALLPAPER_COLLECTION_ID = 136026
+
+const client = new Unsplash({
+  applicationId: process.env.UNSPLASH_ACCESS_KEY,
+  secret: process.env.UNSPLASH_SECRET_KEY,
+  callbackUrl: process.env.UNSPLASH_CALLBACK_URL
+})
+
+const parseImageResult = img => ({
+  id: img.id,
+  photographer: {
+    name: img.user.name,
+    profile_url: img.user.links.html
+  },
+  url: img.urls.small
+})
+
+const getRandomImages = () =>
+  client.photos
+    .getRandomPhoto({
+      collections: [WALLPAPER_COLLECTION_ID],
+      count: 20
+    })
+    .then(toJson)
+    .then(imgs => imgs.map(parseImageResult))
+
+const downloadImage = imageId =>
+  client.photos
+    .getPhoto(imageId)
+    .then(toJson)
+    .then(client.photos.downloadPhoto)
+    .then(toJson)
+
+module.exports = {
+  randomImages: (req, res) => getRandomImages().then(imgs => res.json(imgs)),
+  downloadImage: (req, res) => downloadImage(req.params.imageId).then(url => res.json(url))
+}

package.json

@@ -31,6 +31,7 @@
     "graphql": "^0.11.7",
     "highlight.js": "^9.12.0",
     "history": "^4.7.2",
+    "isomorphic-fetch": "^2.2.1",
     "lodash.debounce": "^4.0.8",
     "match-sorter": "^2.2.0",
     "morgan": "^1.8.2",
@@ -53,7 +54,8 @@
     "react-syntax-highlight": "^15.3.1",
     "resize-observer-polyfill": "^1.5.0",
     "tohash": "^1.0.2",
-    "twitter": "^1.7.1"
+    "twitter": "^1.7.1",
+    "unsplash-js": "^4.8.0"
   },
   "devDependencies": {
     "@zeit/next-css": "^0.1.5",
@@ -72,7 +74,10 @@
       "TWITTER_CONSUMER_SECRET": "@twitter-consumer-secret",
       "TWITTER_ACCESS_TOKEN_KEY": "@twitter-access-token-key",
       "TWITTER_ACCESS_TOKEN_SECRET": "@twitter-access-token-secret",
-      "LOGS_SECRET_PREFIX": "@logs_secret_prefix"
+      "LOGS_SECRET_PREFIX": "@logs_secret_prefix",
+      "UNSPLASH_SECRET_KEY": "@unsplash_secret_key",
+      "UNSPLASH_ACCESS_KEY": "@unsplash_access_key",
+      "UNSPLASH_CALLBACK_URL": "@unsplash_callback_url"
     }
   },
   "lint-staged": {

server.js

@@ -36,9 +36,16 @@ app
     // set up
     const server = express()
     const imageHandler = require('./handlers/image')(browser)
+    const unsplashHandler = require('./handlers/unsplash')
 
     server.use(morgan('tiny'))
 
+    // api endpoints
+    server.post('/twitter', bodyParser.json({ limit: '5mb' }), require('./handlers/twitter'))
+    server.post('/image', bodyParser.json({ limit: '5mb' }), wrap(imageHandler))
+    server.get('/unsplash/random', wrap(unsplashHandler.randomImages))
+    server.get('/unsplash/download/:imageId', wrap(unsplashHandler.downloadImage))
+
     server.get('/about', (req, res) => app.render(req, res, '/about'))
 
     // if root, render webpage from next
@@ -47,10 +54,6 @@ app
     // otherwise, try and get gist
     server.get('*', handle)
 
-    // api endpoints
-    server.post('/twitter', bodyParser.json({ limit: '5mb' }), require('./handlers/twitter'))
-    server.post('/image', bodyParser.json({ limit: '5mb' }), wrap(imageHandler))
-
     server.listen(port, '0.0.0.0', err => {
       if (err) throw err
       console.log(`> Ready on http://localhost:${port}`)

yarn.lock

@@ -2655,6 +2655,10 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
+form-urlencoded@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/form-urlencoded/-/form-urlencoded-1.2.0.tgz#16ce2cafa76d2e48b9e513ab723228aea5993396"
+
 forwarded@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
@@ -3532,7 +3536,7 @@ isobject@^3.0.0, isobject@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
 
-isomorphic-fetch@^2.1.1:
+isomorphic-fetch@^2.1.1, isomorphic-fetch@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
   dependencies:
@@ -3868,6 +3872,10 @@ lodash.debounce@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
 
+lodash.get@4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
+
 lodash.isarguments@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
@@ -5204,6 +5212,10 @@ querystring@0.2.0, querystring@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
 
+querystringify@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-1.0.0.tgz#6286242112c5b712fa654e526652bf6a13ff05cb"
+
 ramda@0.24.1:
   version "0.24.1"
   resolved "https://registry.yarnpkg.com/ramda/-/ramda-0.24.1.tgz#c3b7755197f35b8dc3502228262c4c91ddb6b857"
@@ -5583,6 +5595,10 @@ require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
 
+requires-port@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+
 resize-observer-polyfill@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/resize-observer-polyfill/-/resize-observer-polyfill-1.5.0.tgz#660ff1d9712a2382baa2cad450a4716209f9ca69"
@@ -6488,6 +6504,15 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
+unsplash-js@^4.8.0:
+  version "4.8.0"
+  resolved "https://registry.yarnpkg.com/unsplash-js/-/unsplash-js-4.8.0.tgz#8a5a8ccbdf39410ffb9fdd5f04ed2651ea644349"
+  dependencies:
+    form-urlencoded "1.2.0"
+    lodash.get "4.4.2"
+    querystring "0.2.0"
+    url-parse "1.2.0"
+
 unzip-response@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/unzip-response/-/unzip-response-2.0.1.tgz#d2f0f737d16b0615e72a6935ed04214572d56f97"
@@ -6526,6 +6551,13 @@ url-parse-lax@^1.0.0:
   dependencies:
     prepend-http "^1.0.1"
 
+url-parse@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.2.0.tgz#3a19e8aaa6d023ddd27dcc44cb4fc8f7fec23986"
+  dependencies:
+    querystringify "~1.0.0"
+    requires-port "~1.0.0"
+
 url@0.11.0, url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"