parse-server/src/S3Adapter.js at master · PocketPro/parse-server · GitHub

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// S3Adapter

// Stores Parse files in AWS S3.

var AWS = require('aws-sdk');

var path = require('path');

var DEFAULT_REGION = "us-east-1";

var DEFAULT_BUCKET = "parse-files";

// Creates an S3 session.

// Providing AWS access and secret keys is mandatory

// Region and bucket will use sane defaults if omitted

function S3Adapter(accessKey, secretKey, options) {

options = options || {};

this.region = options.region || DEFAULT_REGION;

this.bucket = options.bucket || DEFAULT_BUCKET;

this.bucketPrefix = options.bucketPrefix || "";

this.directAccess = options.directAccess || false;

s3Options = {

accessKeyId: accessKey,

secretAccessKey: secretKey,

params: {Bucket: this.bucket}

};

AWS.config.region = this.region;

this.s3 = new AWS.S3(s3Options);

}

// For a given config object, filename, and data, store a file in S3

// Returns a promise containing the S3 object creation response

S3Adapter.prototype.create = function(config, filename, data) {

var params = {

Key: this.bucketPrefix + filename,

Body: data,

};

if (this.directAccess) {

params.ACL = "public-read"

}

return new Promise((resolve, reject) => {

this.s3.upload(params, (err, data) => {

if (err !== null) return reject(err);

resolve(data);

});

}

// Search for and return a file if found by filename

// Returns a promise that succeeds with the buffer result from S3

S3Adapter.prototype.get = function(config, filename) {

var params = {Key: this.bucketPrefix + filename};

return new Promise((resolve, reject) => {

this.s3.getObject(params, (err, data) => {

if (err !== null) return reject(err);

resolve(data.Body);

});

}

// Generates and returns the location of a file stored in S3 for the given request and

// filename

// The location is the direct S3 link if the option is set, otherwise we serve

// the file through parse-server

S3Adapter.prototype.location = function(config, req, filename) {

if (this.directAccess) {

return ('https://' + this.bucket + '.s3.amazonaws.com' + '/' +

this.bucketPrefix + filename);

}

return (req.protocol + '://' + req.get('host') +

path.dirname(req.originalUrl) + '/' + req.config.applicationId +

'/' + encodeURIComponent(filename));

}

module.exports = S3Adapter;

parse-server/src/S3Adapter.js at master · PocketPro/parse-server · GitHub

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