Removing google drive integration

It's sad but it's not working. For multiple releases this should be
already broken which shows how often it's used.

As there is also a security issue related to that, it's better to
remove the feature completely. Whoever wants to rewrite it, feel free to
go.

This commit removes the Google Drive integration from HackMD's Frontend
editor and this way removes the need to provide any API key and Client
ID in the frontend.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

1 files changed, 0 insertions, 267 deletions

diff --git a/public/js/google-drive-upload.js b/public/js/google-drive-upload.js
deleted file mode 100644
index 6c0e8a62..00000000
--- a/public/js/google-drive-upload.js
+++ /dev/null
@@ -1,267 +0,0 @@
-/* eslint-env browser, jquery */
-/**
- * Helper for implementing retries with backoff. Initial retry
- * delay is 1 second, increasing by 2x (+jitter) for subsequent retries
- *
- * @constructor
- */
-var RetryHandler = function () {
-  this.interval = 1000 // Start at one second
-  this.maxInterval = 60 * 1000 // Don't wait longer than a minute
-}
-
-/**
- * Invoke the function after waiting
- *
- * @param {function} fn Function to invoke
- */
-RetryHandler.prototype.retry = function (fn) {
-  setTimeout(fn, this.interval)
-  this.interval = this.nextInterval_()
-}
-
-/**
- * Reset the counter (e.g. after successful request.)
- */
-RetryHandler.prototype.reset = function () {
-  this.interval = 1000
-}
-
-/**
- * Calculate the next wait time.
- * @return {number} Next wait interval, in milliseconds
- *
- * @private
- */
-RetryHandler.prototype.nextInterval_ = function () {
-  var interval = this.interval * 2 + this.getRandomInt_(0, 1000)
-  return Math.min(interval, this.maxInterval)
-}
-
-/**
- * Get a random int in the range of min to max. Used to add jitter to wait times.
- *
- * @param {number} min Lower bounds
- * @param {number} max Upper bounds
- * @private
- */
-RetryHandler.prototype.getRandomInt_ = function (min, max) {
-  return Math.floor(Math.random() * (max - min + 1) + min)
-}
-
-/**
- * Helper class for resumable uploads using XHR/CORS. Can upload any Blob-like item, whether
- * files or in-memory constructs.
- *
- * @example
- * var content = new Blob(["Hello world"], {"type": "text/plain"});
- * var uploader = new MediaUploader({
- *   file: content,
- *   token: accessToken,
- *   onComplete: function(data) { ... }
- *   onError: function(data) { ... }
- * });
- * uploader.upload();
- *
- * @constructor
- * @param {object} options Hash of options
- * @param {string} options.token Access token
- * @param {blob} options.file Blob-like item to upload
- * @param {string} [options.fileId] ID of file if replacing
- * @param {object} [options.params] Additional query parameters
- * @param {string} [options.contentType] Content-type, if overriding the type of the blob.
- * @param {object} [options.metadata] File metadata
- * @param {function} [options.onComplete] Callback for when upload is complete
- * @param {function} [options.onProgress] Callback for status for the in-progress upload
- * @param {function} [options.onError] Callback if upload fails
- */
-var MediaUploader = function (options) {
-  var noop = function () {}
-  this.file = options.file
-  this.contentType = options.contentType || this.file.type || 'application/octet-stream'
-  this.metadata = options.metadata || {
-    'title': this.file.name,
-    'mimeType': this.contentType
-  }
-  this.token = options.token
-  this.onComplete = options.onComplete || noop
-  this.onProgress = options.onProgress || noop
-  this.onError = options.onError || noop
-  this.offset = options.offset || 0
-  this.chunkSize = options.chunkSize || 0
-  this.retryHandler = new RetryHandler()
-
-  this.url = options.url
-  if (!this.url) {
-    var params = options.params || {}
-    params.uploadType = 'resumable'
-    this.url = this.buildUrl_(options.fileId, params, options.baseUrl)
-  }
-  this.httpMethod = options.fileId ? 'PUT' : 'POST'
-}
-
-/**
- * Initiate the upload.
- */
-MediaUploader.prototype.upload = function () {
-  var xhr = new XMLHttpRequest()
-
-  xhr.open(this.httpMethod, this.url, true)
-  xhr.setRequestHeader('Authorization', 'Bearer ' + this.token)
-  xhr.setRequestHeader('Content-Type', 'application/json')
-  xhr.setRequestHeader('X-Upload-Content-Length', this.file.size)
-  xhr.setRequestHeader('X-Upload-Content-Type', this.contentType)
-
-  xhr.onload = function (e) {
-    if (e.target.status < 400) {
-      var location = e.target.getResponseHeader('Location')
-      this.url = location
-      this.sendFile_()
-    } else {
-      this.onUploadError_(e)
-    }
-  }.bind(this)
-  xhr.onerror = this.onUploadError_.bind(this)
-  xhr.send(JSON.stringify(this.metadata))
-}
-
-/**
- * Send the actual file content.
- *
- * @private
- */
-MediaUploader.prototype.sendFile_ = function () {
-  var content = this.file
-  var end = this.file.size
-
-  if (this.offset || this.chunkSize) {
-    // Only bother to slice the file if we're either resuming or uploading in chunks
-    if (this.chunkSize) {
-      end = Math.min(this.offset + this.chunkSize, this.file.size)
-    }
-    content = content.slice(this.offset, end)
-  }
-
-  var xhr = new XMLHttpRequest()
-  xhr.open('PUT', this.url, true)
-  xhr.setRequestHeader('Content-Type', this.contentType)
-  xhr.setRequestHeader('Content-Range', 'bytes ' + this.offset + '-' + (end - 1) + '/' + this.file.size)
-  xhr.setRequestHeader('X-Upload-Content-Type', this.file.type)
-  if (xhr.upload) {
-    xhr.upload.addEventListener('progress', this.onProgress)
-  }
-  xhr.onload = this.onContentUploadSuccess_.bind(this)
-  xhr.onerror = this.onContentUploadError_.bind(this)
-  xhr.send(content)
-}
-
-/**
- * Query for the state of the file for resumption.
- *
- * @private
- */
-MediaUploader.prototype.resume_ = function () {
-  var xhr = new XMLHttpRequest()
-  xhr.open('PUT', this.url, true)
-  xhr.setRequestHeader('Content-Range', 'bytes */' + this.file.size)
-  xhr.setRequestHeader('X-Upload-Content-Type', this.file.type)
-  if (xhr.upload) {
-    xhr.upload.addEventListener('progress', this.onProgress)
-  }
-  xhr.onload = this.onContentUploadSuccess_.bind(this)
-  xhr.onerror = this.onContentUploadError_.bind(this)
-  xhr.send()
-}
-
-/**
- * Extract the last saved range if available in the request.
- *
- * @param {XMLHttpRequest} xhr Request object
- */
-MediaUploader.prototype.extractRange_ = function (xhr) {
-  var range = xhr.getResponseHeader('Range')
-  if (range) {
-    this.offset = parseInt(range.match(/\d+/g).pop(), 10) + 1
-  }
-}
-
-/**
- * Handle successful responses for uploads. Depending on the context,
- * may continue with uploading the next chunk of the file or, if complete,
- * invokes the caller's callback.
- *
- * @private
- * @param {object} e XHR event
- */
-MediaUploader.prototype.onContentUploadSuccess_ = function (e) {
-  if (e.target.status === 200 || e.target.status === 201) {
-    this.onComplete(e.target.response)
-  } else if (e.target.status === 308) {
-    this.extractRange_(e.target)
-    this.retryHandler.reset()
-    this.sendFile_()
-  } else {
-    this.onContentUploadError_(e)
-  }
-}
-
-/**
- * Handles errors for uploads. Either retries or aborts depending
- * on the error.
- *
- * @private
- * @param {object} e XHR event
- */
-MediaUploader.prototype.onContentUploadError_ = function (e) {
-  if (e.target.status && e.target.status < 500) {
-    this.onError(e.target.response)
-  } else {
-    this.retryHandler.retry(this.resume_.bind(this))
-  }
-}
-
-/**
- * Handles errors for the initial request.
- *
- * @private
- * @param {object} e XHR event
- */
-MediaUploader.prototype.onUploadError_ = function (e) {
-  this.onError(e.target.response) // TODO - Retries for initial upload
-}
-
-/**
- * Construct a query string from a hash/object
- *
- * @private
- * @param {object} [params] Key/value pairs for query string
- * @return {string} query string
- */
-MediaUploader.prototype.buildQuery_ = function (params) {
-  params = params || {}
-  return Object.keys(params).map(function (key) {
-    return encodeURIComponent(key) + '=' + encodeURIComponent(params[key])
-  }).join('&')
-}
-
-/**
- * Build the drive upload URL
- *
- * @private
- * @param {string} [id] File ID if replacing
- * @param {object} [params] Query parameters
- * @return {string} URL
- */
-MediaUploader.prototype.buildUrl_ = function (id, params, baseUrl) {
-  var url = baseUrl || 'https://www.googleapis.com/upload/drive/v2/files/'
-  if (id) {
-    url += id
-  }
-  var query = this.buildQuery_(params)
-  if (query) {
-    url += '?' + query
-  }
-  return url
-}
-
-window.MediaUploader = MediaUploader