[5.2] [plugin cli] Fix file:/// paths on Windows

src/cli_plugin/install/__tests__/download.js

@@ -6,7 +6,7 @@ import rimraf from 'rimraf';
 import mkdirp from 'mkdirp';
 import Logger from '../../lib/logger';
 import { UnsupportedProtocolError } from '../../lib/errors';
-import { download, _downloadSingle } from '../download';
+import { download, _downloadSingle, _getFilePath, _checkFilePathDeprecation } from '../download';
 import { join } from 'path';
 
 describe('kibana cli', function () {
@@ -133,6 +133,37 @@ describe('kibana cli', function () {
 
     });
 
+    describe('_getFilePath', function () {
+      it('should decode paths', function () {
+        expect(_getFilePath('Test%20folder/file.zip')).to.equal('Test folder/file.zip');
+      });
+
+      it('should remove the leading slash from windows paths', function () {
+        const platform = Object.getOwnPropertyDescriptor(process, 'platform');
+        Object.defineProperty(process, 'platform', { value: 'win32' });
+
+        expect(_getFilePath('/C:/foo/bar')).to.equal('C:/foo/bar');
+
+        Object.defineProperty(process, 'platform', platform);
+      });
+
+    });
+
+    describe('Windows file:// deprecation', function () {
+      it('should log a warning if a file:// path is used', function () {
+        const platform = Object.getOwnPropertyDescriptor(process, 'platform');
+        Object.defineProperty(process, 'platform', { value: 'win32' });
+        const logger = {
+          log: sinon.spy()
+        };
+        _checkFilePathDeprecation('file://foo/bar', logger);
+        _checkFilePathDeprecation('file:///foo/bar', logger);
+        expect(logger.log.callCount).to.be(1);
+        expect(logger.log.calledWith('Install paths with file:// are deprecated, use file:/// instead')).to.be(true);
+        Object.defineProperty(process, 'platform', platform);
+      });
+    });
+
     describe('download', function () {
       it('should loop through bad urls until it finds a good one.', function () {
         const filePath = join(__dirname, 'replies/test_plugin.zip');

src/cli_plugin/install/download.js

@@ -3,12 +3,34 @@ import downloadLocalFile from './downloaders/file';
 import { UnsupportedProtocolError } from '../lib/errors';
 import { parse } from 'url';
 
+function _isWindows() {
+  return /^win/.test(process.platform);
+}
+
+export function _getFilePath(filePath, sourceUrl) {
+  const decodedPath = decodeURI(filePath);
+  const prefixedDrive = /^\/[a-zA-Z]:/.test(decodedPath);
+  if (_isWindows() && prefixedDrive) {
+    return decodedPath.slice(1);
+  }
+
+  return decodedPath;
+}
+
+export function _checkFilePathDeprecation(sourceUrl, logger) {
+  const twoSlashes = /^file:\/\/(?!\/)/.test(sourceUrl);
+  if (_isWindows() && twoSlashes) {
+    logger.log('Install paths with file:// are deprecated, use file:/// instead');
+  }
+}
+
 export function _downloadSingle(settings, logger, sourceUrl) {
   const urlInfo = parse(sourceUrl);
   let downloadPromise;
 
   if (/^file/.test(urlInfo.protocol)) {
-    downloadPromise = downloadLocalFile(logger, decodeURI(urlInfo.path), settings.tempArchiveFile);
+    _checkFilePathDeprecation(sourceUrl, logger);
+    downloadPromise = downloadLocalFile(logger, _getFilePath(urlInfo.path, sourceUrl), settings.tempArchiveFile);
   } else if (/^https?/.test(urlInfo.protocol)) {
     downloadPromise = downloadHttpFile(logger, sourceUrl, settings.tempArchiveFile, settings.timeout);
   } else {