feat: init

node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js

@@ -0,0 +1,92 @@
+'use strict';
+
+module.exports = exports;
+
+const url = require('url');
+
+module.exports.detect = function(opts) {
+  const config = {};
+
+  const to = opts.hosted_path;
+  const uri = url.parse(to);
+
+  if (opts.bucket && opts.region) {
+    // use user defined settings for host, region, bucket
+    config.endpoint = opts.host;
+    config.bucket = opts.bucket;
+    config.region = opts.region;
+    config.s3ForcePathStyle = opts.s3ForcePathStyle;
+
+    // if using s3ForcePathStyle the bucket is part of the http object path
+    // but not the S3 key prefix path.
+    // remove it
+    const bucketPath = config.s3ForcePathStyle ? `/${config.bucket}/` : '/';
+    config.prefix = (!uri.pathname || uri.pathname === bucketPath) ? '' : uri.pathname.replace(bucketPath, '');
+  } else {
+    // auto detect region and bucket from url
+    // only virtual-hosted–style access can be auto detected
+    // the uri will have the following format:
+    // https://bucket-name.s3.Region.amazonaws.com/key-name (dash Region)
+    // or in some legacy region of this format:
+    // https://bucket-name.s3-Region.amazonaws.com/key-name (dot Region)
+    const parts = uri.hostname.split('.s3');
+
+    // there is nothing before the .s3
+    // not a valid s3 virtual host bucket url
+    if (parts.length === 1) {
+      throw new Error('Could not parse s3 bucket name from virtual host url.');
+    }
+
+    // everything before .s3 is the bucket
+    config.bucket = parts[0];
+
+    // from everything that comes after the s3
+    // first char is connecting dot or dash
+    // everything up to the domain should be the region name
+    const region = parts[1].slice(1).split('.')[0];
+    // if user provided url does not include region, default to us-east-1.
+    if (region === 'amazonaws') {
+      config.region = 'us-east-1';
+    } else {
+      config.region = region;
+    }
+
+    config.prefix = (!uri.pathname || uri.pathname === '/') ? '' : uri.pathname.replace('/', '');
+  }
+
+  return config;
+};
+
+module.exports.get_s3 = function(config) {
+  // setting an environment variable: node_pre_gyp_mock_s3 to any value
+  // enables intercepting outgoing http requests to s3 (using nock) and
+  // serving them from a mocked S3 file system (using mock-aws-s3)
+  if (process.env.node_pre_gyp_mock_s3) {
+    return require('../mock/s3')();
+  }
+
+  // if not mocking then setup real s3.
+  const AWS = require('aws-sdk');
+
+  AWS.config.update(config);
+  const s3 = new AWS.S3();
+
+  // need to change if additional options need to be specified.
+  return {
+    listObjects(params, callback) {
+      return s3.listObjects(params, callback);
+    },
+    headObject(params, callback) {
+      return s3.headObject(params, callback);
+    },
+    deleteObject(params, callback) {
+      return s3.deleteObject(params, callback);
+    },
+    putObject(params, callback) {
+      return s3.putObject(params, callback);
+    },
+    getObject(params, callback) {
+      return s3.getObject(params, callback);
+    }
+  };
+};