fix: S3 URLs (#1373) (#1374)

Close #1373

Author: Markus Müller

docs/Publishing Artifacts.md

@@ -171,6 +171,7 @@ Amazon S3 options. `https` must be used, so, if you use direct Amazon S3 endpoin
 | --- | --- | --- |
 | **bucket**| <code>string</code> | <a name="S3Options-bucket"></a>The bucket name. |
 | path = <code>&quot;/&quot;</code>| <code>string</code> \| <code>null</code> | <a name="S3Options-path"></a>The directory path. |
+| region| <code>string</code> \| <code>null</code> | <a name="S3Options-region"></a>The region. Is determined and set automatically when publishing. |
 | channel = <code>&quot;latest&quot;</code>| <code>string</code> \| <code>null</code> | <a name="S3Options-channel"></a>The channel. |
 | acl = <code>public-read</code>| <code>"private"</code> \| <code>"public-read"</code> \| <code>null</code> | <a name="S3Options-acl"></a>The ACL. |
 | storageClass = <code>STANDARD</code>| <code>"STANDARD"</code> \| <code>"REDUCED_REDUNDANCY"</code> \| <code>"STANDARD_IA"</code> \| <code>null</code> | <a name="S3Options-storageClass"></a>The type of storage to use for the object. |

packages/electron-builder-http/src/publishOptions.ts

@@ -95,6 +95,11 @@ export interface S3Options extends PublishConfiguration {
    */
   readonly path?: string | null
 
+  /**
+   * The region. Is determined and set automatically when publishing.
+   */
+  readonly region?: string | null
+
   /**
    * The channel.
    * @default latest
@@ -115,7 +120,18 @@ export interface S3Options extends PublishConfiguration {
 }
 
 export function s3Url(options: S3Options) {
-  let url = `https://${options.bucket}.s3.amazonaws.com`
+  let url: string
+  if (options.bucket.indexOf(".") === -1) {
+    url = `https://${options.bucket}.s3.amazonaws.com`
+  } else {
+    if (!options.region) throw new Error("Bucket name includes a dot, but S3 region is missing")
+
+    // Special case, see http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html#access-bucket-intro
+    url = (options.region === "us-east-1")
+      ? `https://s3.amazonaws.com/${options.bucket}` 
+      : `https://s3-${options.region}.amazonaws.com/${options.bucket}`
+  }
+
   if (options.path != null) {
     url += `/${options.path}`
   }

packages/electron-builder/package.json

@@ -44,34 +44,35 @@
   "bugs": "https://github.com/electron-userland/electron-builder/issues",
   "homepage": "https://github.com/electron-userland/electron-builder",
   "dependencies": {
+    "7zip-bin": "^2.0.4",
     "ajv": "^5.0.4-beta.0",
     "ajv-keywords": "^2.0.1-beta.1",
-    "7zip-bin": "^2.0.4",
+    "aws-sdk": "^2.28.0",
     "bluebird-lst": "^1.0.1",
     "chalk": "^1.1.3",
     "chromium-pickle-js": "^0.2.0",
     "cuint": "^0.2.2",
     "electron-builder-core": "0.0.0-semantic-release",
     "electron-builder-http": "0.0.0-semantic-release",
     "electron-builder-util": "0.0.0-semantic-release",
-    "electron-publish": "0.0.0-semantic-release",
     "electron-download-tf": "4.0.0",
     "electron-macos-sign": "~1.6.0",
+    "electron-publish": "0.0.0-semantic-release",
     "fs-extra-p": "^4.0.2",
     "hosted-git-info": "^2.2.0",
     "is-ci": "^1.0.10",
     "isbinaryfile": "^3.0.2",
     "js-yaml": "^3.8.2",
     "minimatch": "^3.0.3",
+    "node-forge": "^0.7.0",
     "normalize-package-data": "^2.3.6",
     "parse-color": "^1.0.0",
     "plist": "^2.0.1",
     "sanitize-filename": "^1.6.1",
     "semver": "^5.3.0",
     "update-notifier": "^2.1.0",
     "uuid-1345": "^0.99.6",
-    "yargs": "^7.0.2",
-    "node-forge": "^0.7.0"
+    "yargs": "^7.0.2"
   },
   "typings": "./out/electron-builder.d.ts",
   "publishConfig": {

packages/electron-builder/src/publish/PublishManager.ts

@@ -15,6 +15,7 @@ import isCi from "is-ci"
 import { safeDump } from "js-yaml"
 import * as path from "path"
 import * as url from "url"
+import { S3 } from "aws-sdk"
 import { PlatformSpecificBuildOptions } from "../metadata"
 import { Packager } from "../packager"
 import { ArtifactCreated, BuildInfo } from "../packagerApi"
@@ -89,6 +90,13 @@ export class PublishManager implements PublishContext {
         }
       }
 
+      if (publishConfig.provider === "s3" && (<S3Options>publishConfig).bucket.indexOf(".") !== -1) {
+        // On dotted bucket names, we need to use a path-based endpoint URL. Path-based endpoint URLs need to include the region.  
+        const s3 = new S3({signatureVersion: "v4"})
+        const region = (await s3.getBucketLocation({ Bucket: (<S3Options>publishConfig).bucket }).promise()).LocationConstraint
+        publishConfig = Object.assign(publishConfig, {region: region})
+      }
+
       await writeFile(path.join(packager.getResourcesDir(event.appOutDir), "app-update.yml"), safeDump(publishConfig))
     })