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Front facing camera (#289)

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* Front facing camera

* Adding in configuration and update script
This commit is contained in:
Rafael Taranto 2019-07-05 17:17:59 +01:00 • committed by Josh Harvey
parent 90de4fe24d
commit 00c4187081
10 changed files with 142 additions and 8 deletions
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54
lib/customers.js
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@ -8,7 +8,6 @@ const fs = require('fs')
const util = require('util')
const moment = require('moment')
const db = require('./db')
const BN = require('./bn')
const anonymous = require('../lib/constants').anonymousCustomer
@ -19,6 +18,7 @@ const writeFile = util.promisify(fs.writeFile)
const NUM_RESULTS = 1000
const idPhotoCardBasedir = _.get('idPhotoCardDir', options)
const frontCameraBaseDir = _.get('frontCameraDir', options)
/**
* Add new customer
@ -432,4 +432,54 @@ function updatePhotoCard (id, patch) {
})
}
module.exports = {add, get, batch, getById, update, updatePhotoCard}
function updateFrontCamera (id, patch) {
return Promise.resolve(patch)
.then(patch => {
// Base64 encoded image /9j/4AAQSkZJRgABAQAAAQ..
const imageData = _.get('frontCameraData', patch)
if (_.isEmpty(imageData)) {
return patch
}
// remove idCardPhotoData from the update record
const newPatch = _.omit('frontCameraData', patch)
// decode the base64 string to binary data
const decodedImageData = Buffer.from(imageData, 'base64')
// workout the image hash
// i.e. 240e85ff2e4bb931f235985dd0134e459239496d2b5af6c5665168d38ef89b50
const hash = crypto
.createHash('sha256')
.update(imageData)
.digest('hex')
// workout the image folder
// i.e. 24/0e/85
const rpath = _.join(path.sep, _.map(_.wrap(_.join, ''), _.take(3, _.chunk(2, _.split('', hash)))))
// i.e. ../<lamassu-server-home>/idphotocard/24/0e/85
const dirname = path.join(frontCameraBaseDir, rpath)
// create the directory tree if needed
_.attempt(() => makeDir.sync(dirname))
// i.e. ../<lamassu-server-home>/idphotocard/24/0e/85/240e85ff2e4bb931f235985dd01....jpg
const filename = path.join(dirname, hash + '.jpg')
// update db record patch
// i.e. {
// "idCardPhotoPath": "24/0e/85/240e85ff2e4bb931f235985dd01....jpg",
// "idCardPhotoAt": "now()"
// }
newPatch.frontCameraPath = path.join(rpath, hash + '.jpg')
newPatch.frontCameraAt = 'now()'
// write image file
return writeFile(filename, decodedImageData)
.then(() => newPatch)
})
}
module.exports = { add, get, batch, getById, update, updatePhotoCard, updateFrontCamera }