From 2c1a111dee9dc55134bd5853f8e10e4017bb694e Mon Sep 17 00:00:00 2001
From: Tom Moor <tom.moor@gmail.com>
Date: Wed, 16 Sep 2020 21:54:33 -0700
Subject: [PATCH] feat: Support importing .docx or .html files as new documents
 (#1551)

* Support importing .docx as new documents

* Add html file support, build types and interface for easily adding file types to importer

* fix: Upload embedded images in docx to storage

* refactor: Bulk of logic to command

* refactor: Do all importing on server, so we're not splitting logic for import into two places

* test: Add documentImporter tests


Co-authored-by: Lance Whatley <whatl3y@gmail.com>
---
 app/components/DropToImport.js           |   9 +-
 app/menus/CollectionMenu.js              |  24 ++-
 app/stores/DocumentsStore.js             |  46 +++++
 app/utils/ApiClient.js                   |  30 +++-
 app/utils/importFile.js                  |  58 -------
 package.json                             |   6 +-
 server/api/documents.js                  | 205 +++++++++++++----------
 server/api/index.js                      |   9 +-
 server/auth/index.js                     |   2 +-
 server/commands/documentImporter.js      | 113 +++++++++++++
 server/commands/documentImporter.test.js |  77 +++++++++
 server/commands/documentMover.js         |   5 +-
 server/commands/documentMover.test.js    |   2 +-
 server/commands/userInviter.test.js      |   2 +-
 server/test/fixtures/images.docx         | Bin 0 -> 9258 bytes
 server/test/fixtures/markdown.md         |   8 +
 server/test/fixtures/webpage.html        |   8 +
 server/utils/__mocks__/s3.js             |   5 +
 server/utils/dataURItoBuffer.js          |  20 +++
 server/utils/dataURItoBuffer.test.js     |  20 +++
 server/utils/parseDocumentIds.test.js    |   2 +-
 server/utils/parseImages.js              |  26 +++
 server/utils/parseImages.test.js         |  24 +++
 server/utils/s3.js                       |  22 +++
 yarn.lock                                | 116 +++++++++++--
 25 files changed, 645 insertions(+), 194 deletions(-)
 delete mode 100644 app/utils/importFile.js
 create mode 100644 server/commands/documentImporter.js
 create mode 100644 server/commands/documentImporter.test.js
 create mode 100644 server/test/fixtures/images.docx
 create mode 100644 server/test/fixtures/markdown.md
 create mode 100644 server/test/fixtures/webpage.html
 create mode 100644 server/utils/__mocks__/s3.js
 create mode 100644 server/utils/dataURItoBuffer.js
 create mode 100644 server/utils/dataURItoBuffer.test.js
 create mode 100644 server/utils/parseImages.js
 create mode 100644 server/utils/parseImages.test.js

diff --git a/app/components/DropToImport.js b/app/components/DropToImport.js
index ecb8c78c..54b936f6 100644
--- a/app/components/DropToImport.js
+++ b/app/components/DropToImport.js
@@ -8,7 +8,6 @@ import { withRouter, type RouterHistory, type Match } from "react-router-dom";
 import { createGlobalStyle } from "styled-components";
 import DocumentsStore from "stores/DocumentsStore";
 import LoadingIndicator from "components/LoadingIndicator";
-import importFile from "utils/importFile";
 
 const EMPTY_OBJECT = {};
 let importingLock = false;
@@ -61,12 +60,12 @@ class DropToImport extends React.Component<Props> {
       }
 
       for (const file of files) {
-        const doc = await importFile({
-          documents: this.props.documents,
+        const doc = await this.props.documents.import(
           file,
           documentId,
           collectionId,
-        });
+          { publish: true }
+        );
 
         if (redirect) {
           this.props.history.push(doc.url);
@@ -95,7 +94,7 @@ class DropToImport extends React.Component<Props> {
 
     return (
       <Dropzone
-        accept="text/markdown, text/plain"
+        accept={documents.importFileTypes.join(", ")}
         onDropAccepted={this.onDropAccepted}
         style={EMPTY_OBJECT}
         disableClick
diff --git a/app/menus/CollectionMenu.js b/app/menus/CollectionMenu.js
index df7e38a3..c7ab1d90 100644
--- a/app/menus/CollectionMenu.js
+++ b/app/menus/CollectionMenu.js
@@ -15,7 +15,6 @@ import { DropdownMenu, DropdownMenuItem } from "components/DropdownMenu";
 import Modal from "components/Modal";
 import VisuallyHidden from "components/VisuallyHidden";
 import getDataTransferFiles from "utils/getDataTransferFiles";
-import importFile from "utils/importFile";
 import { newDocumentUrl } from "utils/routeHelpers";
 
 type Props = {
@@ -55,11 +54,13 @@ class CollectionMenu extends React.Component<Props> {
     const files = getDataTransferFiles(ev);
 
     try {
-      const document = await importFile({
-        file: files[0],
-        documents: this.props.documents,
-        collectionId: this.props.collection.id,
-      });
+      const file = files[0];
+      const document = await this.props.documents.import(
+        file,
+        null,
+        this.props.collection.id,
+        { publish: true }
+      );
       this.props.history.push(document.url);
     } catch (err) {
       this.props.ui.showToast(err.message);
@@ -103,7 +104,14 @@ class CollectionMenu extends React.Component<Props> {
   };
 
   render() {
-    const { policies, collection, position, onOpen, onClose } = this.props;
+    const {
+      policies,
+      documents,
+      collection,
+      position,
+      onOpen,
+      onClose,
+    } = this.props;
     const can = policies.abilities(collection.id);
 
     return (
@@ -114,7 +122,7 @@ class CollectionMenu extends React.Component<Props> {
             ref={(ref) => (this.file = ref)}
             onChange={this.onFilePicked}
             onClick={(ev) => ev.stopPropagation()}
-            accept="text/markdown, text/plain"
+            accept={documents.importFileTypes.join(", ")}
           />
         </VisuallyHidden>
 
diff --git a/app/stores/DocumentsStore.js b/app/stores/DocumentsStore.js
index d1a76959..ff1aa120 100644
--- a/app/stores/DocumentsStore.js
+++ b/app/stores/DocumentsStore.js
@@ -18,12 +18,23 @@ import Document from "models/Document";
 import type { FetchOptions, PaginationParams, SearchResult } from "types";
 import { client } from "utils/ApiClient";
 
+type ImportOptions = {
+  publish?: boolean,
+};
+
 export default class DocumentsStore extends BaseStore<Document> {
   @observable recentlyViewedIds: string[] = [];
   @observable searchCache: Map<string, SearchResult[]> = new Map();
   @observable starredIds: Map<string, boolean> = new Map();
   @observable backlinks: Map<string, string[]> = new Map();
 
+  importFileTypes: string[] = [
+    "text/markdown",
+    "text/plain",
+    "text/html",
+    "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+  ];
+
   constructor(rootStore: RootStore) {
     super(rootStore, Document);
   }
@@ -455,6 +466,41 @@ export default class DocumentsStore extends BaseStore<Document> {
     return this.add(res.data);
   };
 
+  @action
+  import = async (
+    file: File,
+    parentDocumentId: string,
+    collectionId: string,
+    options: ImportOptions
+  ) => {
+    const title = file.name.replace(/\.[^/.]+$/, "");
+    const formData = new FormData();
+
+    [
+      { key: "parentDocumentId", value: parentDocumentId },
+      { key: "collectionId", value: collectionId },
+      { key: "title", value: title },
+      { key: "publish", value: options.publish },
+      { key: "file", value: file },
+    ].map((info) => {
+      if (typeof info.value === "string" && info.value) {
+        formData.append(info.key, info.value);
+      }
+      if (typeof info.value === "boolean") {
+        formData.append(info.key, info.value.toString());
+      }
+      if (info.value instanceof File) {
+        formData.append(info.key, info.value);
+      }
+    });
+
+    const res = await client.post("/documents.import", formData);
+    invariant(res && res.data, "Data should be available");
+
+    this.addPolicies(res.policies);
+    return this.add(res.data);
+  };
+
   _add = this.add;
 
   @action
diff --git a/app/utils/ApiClient.js b/app/utils/ApiClient.js
index 545f0578..1787d9e4 100644
--- a/app/utils/ApiClient.js
+++ b/app/utils/ApiClient.js
@@ -28,12 +28,13 @@ class ApiClient {
   fetch = async (
     path: string,
     method: string,
-    data: ?Object,
+    data: ?Object | FormData | void,
     options: Object = {}
   ) => {
     let body;
     let modifiedPath;
     let urlToFetch;
+    let isJson;
 
     if (method === "GET") {
       if (data) {
@@ -42,7 +43,18 @@ class ApiClient {
         modifiedPath = path;
       }
     } else if (method === "POST" || method === "PUT") {
-      body = data ? JSON.stringify(data) : undefined;
+      body = data || undefined;
+
+      // Only stringify data if its a normal object and
+      // not if it's [object FormData], in addition to
+      // toggling Content-Type to application/json
+      if (
+        typeof data === "object" &&
+        (data || "").toString() === "[object Object]"
+      ) {
+        isJson = true;
+        body = JSON.stringify(data);
+      }
     }
 
     if (path.match(/^http/)) {
@@ -51,14 +63,20 @@ class ApiClient {
       urlToFetch = this.baseUrl + (modifiedPath || path);
     }
 
-    // Construct headers
-    const headers = new Headers({
+    let headerOptions: any = {
       Accept: "application/json",
-      "Content-Type": "application/json",
       "cache-control": "no-cache",
       "x-editor-version": EDITOR_VERSION,
       pragma: "no-cache",
-    });
+    };
+    // for multipart forms or other non JSON requests fetch
+    // populates the Content-Type without needing to explicitly
+    // set it.
+    if (isJson) {
+      headerOptions["Content-Type"] = "application/json";
+    }
+    const headers = new Headers(headerOptions);
+
     if (stores.auth.authenticated) {
       invariant(stores.auth.token, "JWT token not set properly");
       headers.set("Authorization", `Bearer ${stores.auth.token}`);
diff --git a/app/utils/importFile.js b/app/utils/importFile.js
deleted file mode 100644
index c7ef1297..00000000
--- a/app/utils/importFile.js
+++ /dev/null
@@ -1,58 +0,0 @@
-// @flow
-import parseTitle from "shared/utils/parseTitle";
-import DocumentsStore from "stores/DocumentsStore";
-import Document from "models/Document";
-
-type Options = {
-  file: File,
-  documents: DocumentsStore,
-  collectionId: string,
-  documentId?: string,
-};
-
-const importFile = async ({
-  documents,
-  file,
-  documentId,
-  collectionId,
-}: Options): Promise<Document> => {
-  return new Promise((resolve, reject) => {
-    const reader = new FileReader();
-
-    reader.onload = async (ev) => {
-      let text = ev.target.result;
-      let title;
-
-      // If the first line of the imported file looks like a markdown heading
-      // then we can use this as the document title
-      if (text.trim().startsWith("# ")) {
-        const result = parseTitle(text);
-        title = result.title;
-        text = text.replace(`# ${title}\n`, "");
-
-        // otherwise, just use the filename without the extension as our best guess
-      } else {
-        title = file.name.replace(/\.[^/.]+$/, "");
-      }
-
-      let document = new Document(
-        {
-          parentDocumentId: documentId,
-          collectionId,
-          text,
-          title,
-        },
-        documents
-      );
-      try {
-        document = await document.save({ publish: true });
-        resolve(document);
-      } catch (err) {
-        reject(err);
-      }
-    };
-    reader.readAsText(file);
-  });
-};
-
-export default importFile;
diff --git a/package.json b/package.json
index 76f8dc8e..6ef02a6d 100644
--- a/package.json
+++ b/package.json
@@ -102,7 +102,7 @@
     "jsonwebtoken": "^8.5.0",
     "jszip": "^3.5.0",
     "koa": "^2.10.0",
-    "koa-bodyparser": "4.2.0",
+    "koa-body": "^4.2.0",
     "koa-compress": "2.0.0",
     "koa-convert": "1.2.0",
     "koa-helmet": "5.2.0",
@@ -115,6 +115,7 @@
     "koa-sslify": "2.1.2",
     "koa-static": "^4.0.1",
     "lodash": "^4.17.19",
+    "mammoth": "^1.4.11",
     "mobx": "4.6.0",
     "mobx-react": "^6.2.5",
     "natural-sort": "^1.0.0",
@@ -156,6 +157,7 @@
     "styled-normalize": "^8.0.4",
     "tiny-cookie": "^2.3.1",
     "tmp": "0.0.33",
+    "turndown": "^6.0.0",
     "uuid": "2.0.2",
     "validator": "5.2.0"
   },
@@ -193,4 +195,4 @@
     "js-yaml": "^3.13.1"
   },
   "version": "0.47.1"
-}
\ No newline at end of file
+}
diff --git a/server/api/documents.js b/server/api/documents.js
index d570d037..6795d916 100644
--- a/server/api/documents.js
+++ b/server/api/documents.js
@@ -1,6 +1,7 @@
 // @flow
 import Router from "koa-router";
 import Sequelize from "sequelize";
+import documentImporter from "../commands/documentImporter";
 import documentMover from "../commands/documentMover";
 import { NotFoundError, InvalidRequestError } from "../errors";
 import auth from "../middlewares/authentication";
@@ -707,106 +708,23 @@ router.post("documents.unstar", auth(), async (ctx) => {
   };
 });
 
-router.post("documents.create", auth(), async (ctx) => {
-  const {
-    title = "",
-    text = "",
-    publish,
-    collectionId,
-    parentDocumentId,
-    templateId,
-    template,
-    index,
-  } = ctx.body;
-  const editorVersion = ctx.headers["x-editor-version"];
-
-  ctx.assertUuid(collectionId, "collectionId must be an uuid");
-  if (parentDocumentId) {
-    ctx.assertUuid(parentDocumentId, "parentDocumentId must be an uuid");
-  }
-
-  if (index) ctx.assertPositiveInteger(index, "index must be an integer (>=0)");
+router.post("documents.create", auth(), createDocumentFromContext);
+router.post("documents.import", auth(), async (ctx) => {
+  const file: any = Object.values(ctx.request.files)[0];
 
   const user = ctx.state.user;
   authorize(user, "create", Document);
 
-  const collection = await Collection.scope({
-    method: ["withMembership", user.id],
-  }).findOne({
-    where: {
-      id: collectionId,
-      teamId: user.teamId,
-    },
-  });
-  authorize(user, "publish", collection);
-
-  let parentDocument;
-  if (parentDocumentId) {
-    parentDocument = await Document.findOne({
-      where: {
-        id: parentDocumentId,
-        collectionId: collection.id,
-      },
-    });
-    authorize(user, "read", parentDocument, { collection });
-  }
-
-  let templateDocument;
-  if (templateId) {
-    templateDocument = await Document.findByPk(templateId, { userId: user.id });
-    authorize(user, "read", templateDocument);
-  }
-
-  let document = await Document.create({
-    parentDocumentId,
-    editorVersion,
-    collectionId: collection.id,
-    teamId: user.teamId,
-    userId: user.id,
-    lastModifiedById: user.id,
-    createdById: user.id,
-    template,
-    templateId: templateDocument ? templateDocument.id : undefined,
-    title: templateDocument ? templateDocument.title : title,
-    text: templateDocument ? templateDocument.text : text,
-  });
-
-  await Event.create({
-    name: "documents.create",
-    documentId: document.id,
-    collectionId: document.collectionId,
-    teamId: document.teamId,
-    actorId: user.id,
-    data: { title: document.title, templateId },
+  const { text, title } = await documentImporter({
+    user,
+    file,
     ip: ctx.request.ip,
   });
 
-  if (publish) {
-    await document.publish();
+  ctx.body.text = text;
+  ctx.body.title = title;
 
-    await Event.create({
-      name: "documents.publish",
-      documentId: document.id,
-      collectionId: document.collectionId,
-      teamId: document.teamId,
-      actorId: user.id,
-      data: { title: document.title },
-      ip: ctx.request.ip,
-    });
-  }
-
-  // reload to get all of the data needed to present (user, collection etc)
-  // we need to specify publishedAt to bypass default scope that only returns
-  // published documents
-  document = await Document.findOne({
-    where: { id: document.id, publishedAt: document.publishedAt },
-  });
-  document.collection = collection;
-
-  ctx.body = {
-    data: await presentDocument(document),
-    policies: presentPolicies(user, [document]),
-  };
+  await createDocumentFromContext(ctx);
 });
 
 router.post("documents.templatize", auth(), async (ctx) => {
@@ -1073,4 +991,107 @@ router.post("documents.unpublish", auth(), async (ctx) => {
   };
 });
 
+// TODO: update to actual `ctx` type
+export async function createDocumentFromContext(ctx: any) {
+  const {
+    title = "",
+    text = "",
+    publish,
+    collectionId,
+    parentDocumentId,
+    templateId,
+    template,
+    index,
+  } = ctx.body;
+  const editorVersion = ctx.headers["x-editor-version"];
+
+  ctx.assertUuid(collectionId, "collectionId must be an uuid");
+  if (parentDocumentId) {
+    ctx.assertUuid(parentDocumentId, "parentDocumentId must be an uuid");
+  }
+
+  if (index) ctx.assertPositiveInteger(index, "index must be an integer (>=0)");
+
+  const user = ctx.state.user;
+  authorize(user, "create", Document);
+
+  const collection = await Collection.scope({
+    method: ["withMembership", user.id],
+  }).findOne({
+    where: {
+      id: collectionId,
+      teamId: user.teamId,
+    },
+  });
+  authorize(user, "publish", collection);
+
+  let parentDocument;
+  if (parentDocumentId) {
+    parentDocument = await Document.findOne({
+      where: {
+        id: parentDocumentId,
+        collectionId: collection.id,
+      },
+    });
+    authorize(user, "read", parentDocument, { collection });
+  }
+
+  let templateDocument;
+  if (templateId) {
+    templateDocument = await Document.findByPk(templateId, { userId: user.id });
+    authorize(user, "read", templateDocument);
+  }
+
+  let document = await Document.create({
+    parentDocumentId,
+    editorVersion,
+    collectionId: collection.id,
+    teamId: user.teamId,
+    userId: user.id,
+    lastModifiedById: user.id,
+    createdById: user.id,
+    template,
+    templateId: templateDocument ? templateDocument.id : undefined,
+    title: templateDocument ? templateDocument.title : title,
+    text: templateDocument ? templateDocument.text : text,
+  });
+
+  await Event.create({
+    name: "documents.create",
+    documentId: document.id,
+    collectionId: document.collectionId,
+    teamId: document.teamId,
+    actorId: user.id,
+    data: { title: document.title, templateId },
+    ip: ctx.request.ip,
+  });
+
+  if (publish) {
+    await document.publish();
+
+    await Event.create({
+      name: "documents.publish",
+      documentId: document.id,
+      collectionId: document.collectionId,
+      teamId: document.teamId,
+      actorId: user.id,
+      data: { title: document.title },
+      ip: ctx.request.ip,
+    });
+  }
+
+  // reload to get all of the data needed to present (user, collection etc)
+  // we need to specify publishedAt to bypass default scope that only returns
+  // published documents
+  document = await Document.findOne({
+    where: { id: document.id, publishedAt: document.publishedAt },
+  });
+  document.collection = collection;
+
+  return (ctx.body = {
+    data: await presentDocument(document),
+    policies: presentPolicies(user, [document]),
+  });
+}
+
 export default router;
diff --git a/server/api/index.js b/server/api/index.js
index c7023163..8fd0f930 100644
--- a/server/api/index.js
+++ b/server/api/index.js
@@ -1,6 +1,6 @@
 // @flow
 import Koa from "koa";
-import bodyParser from "koa-bodyparser";
+import bodyParser from "koa-body";
 import Router from "koa-router";
 
 import { NotFoundError } from "../errors";
@@ -31,8 +31,13 @@ const api = new Koa();
 const router = new Router();
 
 // middlewares
+api.use(
+  bodyParser({
+    multipart: true,
+    formidable: { maxFieldsSize: 10 * 1024 * 1024 },
+  })
+);
 api.use(errorHandling());
-api.use(bodyParser());
 api.use(methodOverride());
 api.use(validation());
 api.use(apiWrapper());
diff --git a/server/auth/index.js b/server/auth/index.js
index 7aeb7fb0..11095f49 100644
--- a/server/auth/index.js
+++ b/server/auth/index.js
@@ -1,7 +1,7 @@
 // @flow
 import addMonths from "date-fns/add_months";
 import Koa from "koa";
-import bodyParser from "koa-bodyparser";
+import bodyParser from "koa-body";
 import Router from "koa-router";
 import auth from "../middlewares/authentication";
 import validation from "../middlewares/validation";
diff --git a/server/commands/documentImporter.js b/server/commands/documentImporter.js
new file mode 100644
index 00000000..efa615c4
--- /dev/null
+++ b/server/commands/documentImporter.js
@@ -0,0 +1,113 @@
+// @flow
+import fs from "fs";
+import File from "formidable/lib/file";
+import mammoth from "mammoth";
+import TurndownService from "turndown";
+import uuid from "uuid";
+import parseTitle from "../../shared/utils/parseTitle";
+import { Attachment, Event, User } from "../models";
+import dataURItoBuffer from "../utils/dataURItoBuffer";
+import parseImages from "../utils/parseImages";
+import { uploadToS3FromBuffer } from "../utils/s3";
+
+// https://github.com/domchristie/turndown#options
+const turndownService = new TurndownService({
+  hr: "---",
+  bulletListMarker: "-",
+  headingStyle: "atx",
+});
+
+interface ImportableFile {
+  type: string;
+  getMarkdown: (file: any) => Promise<string>;
+}
+
+const importMapping: ImportableFile[] = [
+  {
+    type:
+      "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+    getMarkdown: docxToMarkdown,
+  },
+  {
+    type: "text/html",
+    getMarkdown: htmlToMarkdown,
+  },
+  {
+    type: "text/plain",
+    getMarkdown: fileToMarkdown,
+  },
+  {
+    type: "text/markdown",
+    getMarkdown: fileToMarkdown,
+  },
+];
+
+async function fileToMarkdown(file): Promise<string> {
+  return fs.promises.readFile(file.path, "utf8");
+}
+
+async function docxToMarkdown(file): Promise<string> {
+  const { value } = await mammoth.convertToHtml(file);
+  return turndownService.turndown(value);
+}
+
+async function htmlToMarkdown(file): Promise<string> {
+  const value = await fs.promises.readFile(file.path, "utf8");
+  return turndownService.turndown(value);
+}
+
+export default async function documentImporter({
+  file,
+  user,
+  ip,
+}: {
+  user: User,
+  file: File,
+  ip: string,
+}): Promise<{ text: string, title: string }> {
+  const fileInfo = importMapping.filter((item) => item.type === file.type)[0];
+  let title = file.name.replace(/\.[^/.]+$/, "");
+  let text = await fileInfo.getMarkdown(file);
+
+  // If the first line of the imported text looks like a markdown heading
+  // then we can use this as the document title
+  if (text.trim().startsWith("# ")) {
+    const result = parseTitle(text);
+    title = result.title;
+    text = text.replace(`# ${title}\n`, "");
+  }
+
+  // find data urls, convert to blobs, upload and write attachments
+  const images = parseImages(text);
+  const dataURIs = images.filter((href) => href.startsWith("data:"));
+
+  for (const uri of dataURIs) {
+    const name = "imported";
+    const key = `uploads/${user.id}/${uuid.v4()}/${name}`;
+    const acl = process.env.AWS_S3_ACL || "private";
+    const { buffer, type } = dataURItoBuffer(uri);
+    const url = await uploadToS3FromBuffer(buffer, type, key, acl);
+
+    const attachment = await Attachment.create({
+      key,
+      acl,
+      url,
+      size: buffer.length,
+      contentType: type,
+      teamId: user.teamId,
+      userId: user.id,
+    });
+
+    await Event.create({
+      name: "attachments.create",
+      data: { name },
+      teamId: user.teamId,
+      userId: user.id,
+      ip,
+    });
+
+    text = text.replace(uri, attachment.redirectUrl);
+  }
+
+  return { text, title };
+}
diff --git a/server/commands/documentImporter.test.js b/server/commands/documentImporter.test.js
new file mode 100644
index 00000000..2cac5272
--- /dev/null
+++ b/server/commands/documentImporter.test.js
@@ -0,0 +1,77 @@
+// @flow
+import path from "path";
+import File from "formidable/lib/file";
+import { Attachment } from "../models";
+import { buildUser } from "../test/factories";
+import { flushdb } from "../test/support";
+import documentImporter from "./documentImporter";
+
+jest.mock("../utils/s3");
+
+beforeEach(() => flushdb());
+
+describe("documentImporter", () => {
+  const ip = "127.0.0.1";
+
+  it("should convert Word Document to markdown", async () => {
+    const user = await buildUser();
+    const name = "images.docx";
+    const file = new File({
+      name,
+      type:
+        "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+      path: path.resolve(__dirname, "..", "test", "fixtures", name),
+    });
+
+    const response = await documentImporter({
+      user,
+      file,
+      ip,
+    });
+
+    const attachments = await Attachment.count();
+    expect(attachments).toEqual(1);
+
+    expect(response.text).toContain("This is a test document for images");
+    expect(response.text).toContain("![](/api/attachments.redirect?id=");
+    expect(response.title).toEqual("images");
+  });
+
+  it("should convert HTML Document to markdown", async () => {
+    const user = await buildUser();
+    const name = "webpage.html";
+    const file = new File({
+      name,
+      type: "text/html",
+      path: path.resolve(__dirname, "..", "test", "fixtures", name),
+    });
+
+    const response = await documentImporter({
+      user,
+      file,
+      ip,
+    });
+
+    expect(response.text).toContain("Text paragraph");
+    expect(response.title).toEqual("Heading 1");
+  });
+
+  it("should load markdown", async () => {
+    const user = await buildUser();
+    const name = "markdown.md";
+    const file = new File({
+      name,
+      type: "text/plain",
+      path: path.resolve(__dirname, "..", "test", "fixtures", name),
+    });
+
+    const response = await documentImporter({
+      user,
+      file,
+      ip,
+    });
+
+    expect(response.text).toContain("This is a test paragraph");
+    expect(response.title).toEqual("Heading 1");
+  });
+});
diff --git a/server/commands/documentMover.js b/server/commands/documentMover.js
index cdae6d91..353bd455 100644
--- a/server/commands/documentMover.js
+++ b/server/commands/documentMover.js
@@ -1,6 +1,5 @@
 // @flow
-import { type Context } from "koa";
-import { Document, Collection, Event } from "../models";
+import { Document, Collection, User, Event } from "../models";
 import { sequelize } from "../sequelize";
 
 export default async function documentMover({
@@ -11,7 +10,7 @@ export default async function documentMover({
   index,
   ip,
 }: {
-  user: Context,
+  user: User,
   document: Document,
   collectionId: string,
   parentDocumentId?: string,
diff --git a/server/commands/documentMover.test.js b/server/commands/documentMover.test.js
index 04dd1020..bee447d6 100644
--- a/server/commands/documentMover.test.js
+++ b/server/commands/documentMover.test.js
@@ -1,7 +1,7 @@
 /* eslint-disable flowtype/require-valid-file-annotation */
-import documentMover from "../commands/documentMover";
 import { buildDocument, buildCollection } from "../test/factories";
 import { flushdb, seed } from "../test/support";
+import documentMover from "./documentMover";
 
 beforeEach(() => flushdb());
 
diff --git a/server/commands/userInviter.test.js b/server/commands/userInviter.test.js
index 8517a666..327ad367 100644
--- a/server/commands/userInviter.test.js
+++ b/server/commands/userInviter.test.js
@@ -1,7 +1,7 @@
 /* eslint-disable flowtype/require-valid-file-annotation */
-import userInviter from "../commands/userInviter";
 import { buildUser } from "../test/factories";
 import { flushdb } from "../test/support";
+import userInviter from "./userInviter";
 
 beforeEach(() => flushdb());
 
diff --git a/server/test/fixtures/images.docx b/server/test/fixtures/images.docx
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DOD}@!

literal 0
HcmV?d00001

diff --git a/server/test/fixtures/markdown.md b/server/test/fixtures/markdown.md
new file mode 100644
index 00000000..59499fce
--- /dev/null
+++ b/server/test/fixtures/markdown.md
@@ -0,0 +1,8 @@
+# Heading 1
+
+## Heading 2
+
+This is a test paragraph
+
+- list item 1
+- list item 2
diff --git a/server/test/fixtures/webpage.html b/server/test/fixtures/webpage.html
new file mode 100644
index 00000000..a85c8026
--- /dev/null
+++ b/server/test/fixtures/webpage.html
@@ -0,0 +1,8 @@
+<html>
+
+<body>
+  <h1>Heading 1</h1>
+  <p>Text paragraph</p>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/server/utils/__mocks__/s3.js b/server/utils/__mocks__/s3.js
new file mode 100644
index 00000000..e0c4056f
--- /dev/null
+++ b/server/utils/__mocks__/s3.js
@@ -0,0 +1,5 @@
+/* eslint-disable flowtype/require-valid-file-annotation */
+
+export const uploadToS3FromBuffer = jest.fn().mockReturnValue("/endpoint/key");
+
+export const publicS3Endpoint = jest.fn().mockReturnValue("http://mock");
diff --git a/server/utils/dataURItoBuffer.js b/server/utils/dataURItoBuffer.js
new file mode 100644
index 00000000..098506ef
--- /dev/null
+++ b/server/utils/dataURItoBuffer.js
@@ -0,0 +1,20 @@
+// @flow
+
+export default function dataURItoBuffer(dataURI: string) {
+  const split = dataURI.split(",");
+
+  if (!dataURI.startsWith("data") || split.length <= 1) {
+    throw new Error("Not a dataURI");
+  }
+
+  // separate out the mime component
+  const type = split[0].split(":")[1].split(";")[0];
+
+  // convert base64 to buffer
+  const buffer = Buffer.from(split[1], "base64");
+
+  return {
+    buffer,
+    type,
+  };
+}
diff --git a/server/utils/dataURItoBuffer.test.js b/server/utils/dataURItoBuffer.test.js
new file mode 100644
index 00000000..eb23704d
--- /dev/null
+++ b/server/utils/dataURItoBuffer.test.js
@@ -0,0 +1,20 @@
+// @flow
+import dataURItoBuffer from "./dataURItoBuffer";
+
+it("should parse value data URI", () => {
+  const response = dataURItoBuffer(
+    `data:image/png;base64,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`
+  );
+  expect(response.buffer).toBeTruthy();
+  expect(response.type).toBe("image/png");
+});
+
+it("should throw an error with junk input", () => {
+  let err;
+  try {
+    dataURItoBuffer("what");
+  } catch (error) {
+    err = error;
+  }
+  expect(err).toBeTruthy();
+});
diff --git a/server/utils/parseDocumentIds.test.js b/server/utils/parseDocumentIds.test.js
index eb938748..75c210e9 100644
--- a/server/utils/parseDocumentIds.test.js
+++ b/server/utils/parseDocumentIds.test.js
@@ -1,4 +1,4 @@
-/* eslint-disable flowtype/require-valid-file-annotation */
+// @flow
 import parseDocumentIds from "./parseDocumentIds";
 
 it("should not return non links", () => {
diff --git a/server/utils/parseImages.js b/server/utils/parseImages.js
new file mode 100644
index 00000000..d62188d8
--- /dev/null
+++ b/server/utils/parseImages.js
@@ -0,0 +1,26 @@
+// @flow
+import { parser } from "rich-markdown-editor";
+
+export default function parseImages(text: string): string[] {
+  const value = parser.parse(text);
+  const images = [];
+
+  function findImages(node) {
+    if (node.type.name === "image") {
+      if (!images.includes(node.attrs.src)) {
+        images.push(node.attrs.src);
+      }
+
+      return;
+    }
+
+    if (!node.content.size) {
+      return;
+    }
+
+    node.content.descendants(findImages);
+  }
+
+  findImages(value);
+  return images;
+}
diff --git a/server/utils/parseImages.test.js b/server/utils/parseImages.test.js
new file mode 100644
index 00000000..24cd1a3a
--- /dev/null
+++ b/server/utils/parseImages.test.js
@@ -0,0 +1,24 @@
+// @flow
+import parseImages from "./parseImages";
+
+it("should not return non images", () => {
+  expect(parseImages(`# Header`).length).toBe(0);
+});
+
+it("should return an array of images", () => {
+  const result = parseImages(`# Header
+  
+  ![internal](/attachments/image.png)
+  `);
+
+  expect(result.length).toBe(1);
+  expect(result[0]).toBe("/attachments/image.png");
+});
+
+it("should not return non document links", () => {
+  expect(parseImages(`[google](http://www.google.com)`).length).toBe(0);
+});
+
+it("should not return non document relative links", () => {
+  expect(parseImages(`[relative](/developers)`).length).toBe(0);
+});
diff --git a/server/utils/s3.js b/server/utils/s3.js
index 05ed6d9e..4cf11ee2 100644
--- a/server/utils/s3.js
+++ b/server/utils/s3.js
@@ -89,6 +89,28 @@ export const publicS3Endpoint = (isServerUpload?: boolean) => {
   }${AWS_S3_UPLOAD_BUCKET_NAME}`;
 };
 
+export const uploadToS3FromBuffer = async (
+  buffer: Buffer,
+  contentType: string,
+  key: string,
+  acl: string
+) => {
+  await s3
+    .putObject({
+      ACL: acl,
+      Bucket: AWS_S3_UPLOAD_BUCKET_NAME,
+      Key: key,
+      ContentType: contentType,
+      ContentLength: buffer.length,
+      ServerSideEncryption: "AES256",
+      Body: buffer,
+    })
+    .promise();
+
+  const endpoint = publicS3Endpoint(true);
+  return `${endpoint}/${key}`;
+};
+
 export const uploadToS3FromUrl = async (
   url: string,
   key: string,
diff --git a/yarn.lock b/yarn.lock
index 0d9839a6..601b87b6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1510,6 +1510,19 @@
   resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
   integrity sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==
 
+"@types/events@*":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@types/events/-/events-3.0.0.tgz#2862f3f58a9a7f7c3e78d79f130dd4d71c25c2a7"
+  integrity sha512-EaObqwIvayI5a8dCzhFrjKzVwKLxjoG9T6Ppd5CEo07LRKfQ8Yokw54r5+Wq7FaBQ+yXRvQAYPrHwya1/UFt9g==
+
+"@types/formidable@^1.0.31":
+  version "1.0.31"
+  resolved "https://registry.yarnpkg.com/@types/formidable/-/formidable-1.0.31.tgz#274f9dc2d0a1a9ce1feef48c24ca0859e7ec947b"
+  integrity sha512-dIhM5t8lRP0oWe2HF8MuPvdd1TpPTjhDMAqemcq6oIZQCBQTovhBAdTQ5L5veJB4pdQChadmHuxtB0YzqvfU3Q==
+  dependencies:
+    "@types/events" "*"
+    "@types/node" "*"
+
 "@types/graceful-fs@^4.1.2":
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/@types/graceful-fs/-/graceful-fs-4.1.3.tgz#039af35fe26bec35003e8d86d2ee9c586354348f"
@@ -1945,7 +1958,7 @@ aproba@^1.1.1:
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
   integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
 
-argparse@^1.0.7:
+argparse@^1.0.7, argparse@~1.0.3:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
   integrity sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==
@@ -2490,7 +2503,7 @@ bluebird@^3.5.5, bluebird@^3.7.2:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
   integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
 
-bluebird@~3.4.1:
+bluebird@~3.4.0, bluebird@~3.4.1:
   version "3.4.7"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
   integrity sha1-9y12C+Cbf3bQjtj66Ysomo0F+rM=
@@ -3184,7 +3197,7 @@ cluster-key-slot@^1.1.0:
   resolved "https://registry.yarnpkg.com/cluster-key-slot/-/cluster-key-slot-1.1.0.tgz#30474b2a981fb12172695833052bc0d01336d10d"
   integrity sha512-2Nii8p3RwAPiFwsnZvukotvow2rIHM+yQ6ZcBXGHdniadkYGZYiGmkHJIbZPIV9nfv7m/U1IPMVVcAhoWFeklw==
 
-co-body@^5.1.0:
+co-body@^5.1.1:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/co-body/-/co-body-5.2.0.tgz#5a0a658c46029131e0e3a306f67647302f71c124"
   integrity sha512-sX/LQ7LqUhgyaxzbe7IqwPeTr2yfpfUIQ/dgpKo6ZI4y4lpQA0YxAomWIY+7I7rHWcG02PG+OuPREzMW/5tszQ==
@@ -3454,11 +3467,6 @@ copy-to-clipboard@^3.0.6, copy-to-clipboard@^3.0.8:
   dependencies:
     toggle-selection "^1.0.6"
 
-copy-to@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/copy-to/-/copy-to-2.0.1.tgz#2680fbb8068a48d08656b6098092bdafc906f4a5"
-  integrity sha1-JoD7uAaKSNCGVrYJgJK9r8kG9KU=
-
 core-js-compat@^3.6.2:
   version "3.6.5"
   resolved "https://registry.yarnpkg.com/core-js-compat/-/core-js-compat-3.6.5.tgz#2a51d9a4e25dfd6e690251aa81f99e3c05481f1c"
@@ -3995,6 +4003,13 @@ double-ended-queue@^2.1.0-0:
   resolved "https://registry.yarnpkg.com/double-ended-queue/-/double-ended-queue-2.1.0-0.tgz#103d3527fd31528f40188130c841efdd78264e5c"
   integrity sha1-ED01J/0xUo9AGIEwyEHv3XgmTlw=
 
+duck@~0.1.11:
+  version "0.1.11"
+  resolved "https://registry.yarnpkg.com/duck/-/duck-0.1.11.tgz#3adc1a3d2fbdd5879ffd3bda05ce0f69355e9093"
+  integrity sha1-OtwaPS+91Yef/TvaBc4PaTVekJM=
+  dependencies:
+    underscore "~1.4.4"
+
 duplexer2@~0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/duplexer2/-/duplexer2-0.1.4.tgz#8b12dab878c0d69e3e7891051662a32fc6bddcc1"
@@ -4941,6 +4956,11 @@ form-data@~2.3.2:
     combined-stream "^1.0.6"
     mime-types "^2.1.12"
 
+formidable@^1.1.1:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.2.2.tgz#bf69aea2972982675f00865342b982986f6b8dd9"
+  integrity sha512-V8gLm+41I/8kguQ4/o1D3RIHRmhYFG4pnNyonvua+40rqcEmT4+V71yaZ3B457xbbgCsCfjSPi65u/W6vK1U5Q==
+
 fragment-cache@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
@@ -6723,7 +6743,7 @@ jsbn@~0.1.0:
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
   integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
 
-jsdom@^16.2.2:
+jsdom@^16.2.0, jsdom@^16.2.2:
   version "16.4.0"
   resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-16.4.0.tgz#36005bde2d136f73eee1a830c6d45e55408edddb"
   integrity sha512-lYMm3wYdgPhrl7pDcRmvzPhhrGVBeVhPIqeHjzeiHN3DFmD1RBpbExbi8vU7BJdH8VAZYovR8DMt0PNNDM7k8w==
@@ -6889,6 +6909,13 @@ jszip@^3.5.0:
     readable-stream "~2.3.6"
     set-immediate-shim "~1.0.1"
 
+jszip@~2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/jszip/-/jszip-2.5.0.tgz#7444fd8551ddf3e5da7198fea0c91bc8308cc274"
+  integrity sha1-dET9hVHd8+XacZj+oMkbyDCMwnQ=
+  dependencies:
+    pako "~0.2.5"
+
 jwa@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jwa/-/jwa-1.4.1.tgz#743c32985cb9e98655530d53641b66c8645b039a"
@@ -6966,13 +6993,14 @@ kleur@^3.0.3:
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
   integrity sha512-eTIzlVOSUR+JxdDFepEYcBMtZ9Qqdef+rnzWdRZuMbOywu5tO2w2N7rqjoANZ5k9vywhL6Br1VRjUIgTQx4E8w==
 
-koa-bodyparser@4.2.0:
+koa-body@^4.2.0:
   version "4.2.0"
-  resolved "https://registry.yarnpkg.com/koa-bodyparser/-/koa-bodyparser-4.2.0.tgz#bce6e08bc65f8709b6d1faa9411c7f0d8938aa54"
-  integrity sha1-vObgi8Zfhwm20fqpQRx/DYk4qlQ=
+  resolved "https://registry.yarnpkg.com/koa-body/-/koa-body-4.2.0.tgz#37229208b820761aca5822d14c5fc55cee31b26f"
+  integrity sha512-wdGu7b9amk4Fnk/ytH8GuWwfs4fsB5iNkY8kZPpgQVb04QZSv85T0M8reb+cJmvLE8cjPYvBzRikD3s6qz8OoA==
   dependencies:
-    co-body "^5.1.0"
-    copy-to "^2.0.1"
+    "@types/formidable" "^1.0.31"
+    co-body "^5.1.1"
+    formidable "^1.1.1"
 
 koa-compose@^3.0.0, koa-compose@^3.2.1:
   version "3.2.1"
@@ -7508,6 +7536,15 @@ loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3
   dependencies:
     js-tokens "^3.0.0 || ^4.0.0"
 
+lop@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/lop/-/lop-0.4.0.tgz#4f0e4384d5c4f455d0b86d254fd52a9d05593c2c"
+  integrity sha1-Tw5DhNXE9FXQuG0lT9UqnQVZPCw=
+  dependencies:
+    duck "~0.1.11"
+    option "~0.2.1"
+    underscore "~1.4.4"
+
 lower-case@^1.1.1:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
@@ -7591,6 +7628,20 @@ makeerror@1.0.x:
   dependencies:
     tmpl "1.0.x"
 
+mammoth@^1.4.11:
+  version "1.4.11"
+  resolved "https://registry.yarnpkg.com/mammoth/-/mammoth-1.4.11.tgz#cf2d00b09fa61112f1758f3482d9b4507a1d106c"
+  integrity sha512-OB5/LJfI2QptpFKMfcHxom5nXnobySI6o8UkoeRjzYgbV7ZyC1WtDMATJ/khAfzhBfWHvYVdFGtKffyDX+6kMQ==
+  dependencies:
+    argparse "~1.0.3"
+    bluebird "~3.4.0"
+    jszip "~2.5.0"
+    lop "~0.4.0"
+    path-is-absolute "^1.0.0"
+    sax "~1.1.1"
+    underscore "~1.8.3"
+    xmlbuilder "^10.0.0"
+
 map-age-cleaner@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz#7d583a7306434c055fe474b0f45078e6e1b4b92a"
@@ -8310,6 +8361,11 @@ only@~0.0.2:
   resolved "https://registry.yarnpkg.com/only/-/only-0.0.2.tgz#2afde84d03e50b9a8edc444e30610a70295edfb4"
   integrity sha1-Kv3oTQPlC5qO3EROMGEKcCle37Q=
 
+option@~0.2.1:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/option/-/option-0.2.4.tgz#fd475cdf98dcabb3cb397a3ba5284feb45edbfe4"
+  integrity sha1-/Udc35jcq7PLOXo7pShP60Xtv+Q=
+
 optionator@^0.8.1:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.3.tgz#84fa1d036fe9d3c7e21d99884b601167ec8fb495"
@@ -8525,6 +8581,11 @@ packet-reader@1.0.0:
   resolved "https://registry.yarnpkg.com/packet-reader/-/packet-reader-1.0.0.tgz#9238e5480dedabacfe1fe3f2771063f164157d74"
   integrity sha512-HAKu/fG3HpHFO0AA8WE8q2g+gBJaZ9MG7fcKk+IJPLTGAD6Psw4443l+9DGRbOIh3/aXr7Phy0TjilYivJo5XQ==
 
+pako@~0.2.5:
+  version "0.2.9"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-0.2.9.tgz#f3f7522f4ef782348da8161bad9ecfd51bf83a75"
+  integrity sha1-8/dSL073gjSNqBYbrZ7P1Rv4OnU=
+
 pako@~1.0.2, pako@~1.0.5:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.11.tgz#6c9599d340d54dfd3946380252a35705a6b992bf"
@@ -9977,6 +10038,11 @@ sax@>=0.6.0:
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
+sax@~1.1.1:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.1.6.tgz#5d616be8a5e607d54e114afae55b7eaf2fcc3240"
+  integrity sha1-XWFr6KXmB9VOEUr65Vt+ry/MMkA=
+
 saxes@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/saxes/-/saxes-5.0.1.tgz#eebab953fa3b7608dbe94e5dadb15c888fa6696d"
@@ -11216,6 +11282,13 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
+turndown@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/turndown/-/turndown-6.0.0.tgz#c083d6109a9366be1b84b86b20af09140ea4b413"
+  integrity sha512-UVJBhSyRHCpNKtQ00mNWlYUM/i+tcipkb++F0PrOpt0L7EhNd0AX9mWEpL2dRFBu7LWXMp4HgAMA4OeKKnN7og==
+  dependencies:
+    jsdom "^16.2.0"
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
@@ -11342,6 +11415,16 @@ underscore@^1.7.0:
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.10.2.tgz#73d6aa3668f3188e4adb0f1943bd12cfd7efaaaf"
   integrity sha512-N4P+Q/BuyuEKFJ43B9gYuOj4TQUHXX+j2FqguVOpjkssLUUrnJofCcBccJSCoeturDoZU6GorDTHSvUDlSQbTg==
 
+underscore@~1.4.4:
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.4.4.tgz#61a6a32010622afa07963bf325203cf12239d604"
+  integrity sha1-YaajIBBiKvoHljvzJSA88SI51gQ=
+
+underscore@~1.8.3:
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"
+  integrity sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI=
+
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
@@ -11994,6 +12077,11 @@ xml2js@0.4.19:
     sax ">=0.6.0"
     xmlbuilder "~9.0.1"
 
+xmlbuilder@^10.0.0:
+  version "10.1.1"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-10.1.1.tgz#8cae6688cc9b38d850b7c8d3c0a4161dcaf475b0"
+  integrity sha512-OyzrcFLL/nb6fMGHbiRDuPup9ljBycsdCypwuyg5AAHvyWzGfChJpCXMG88AGTIMFhGZ9RccFN1e6lhg3hkwKg==
+
 xmlbuilder@~9.0.1:
   version "9.0.7"
   resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"