(core) move home server into core

Summary: This moves enough server material into core to run a home server.  The data engine is not yet incorporated (though in manual testing it works when ported).

Test Plan: existing tests pass

Reviewers: dsagal

Reviewed By: dsagal

Differential Revision: https://phab.getgrist.com/D2552

app/server/declarations.d.ts

@@ -0,0 +1,102 @@
+declare module "app/server/lib/ActionLog";
+declare module "app/server/lib/sandboxUtil";
+declare module "app/server/lib/ServerMetrics";
+declare module "app/server/lib/User";
+declare module "app/server/serverMethods";
+
+declare module "app/server/lib/Comm" {
+  import {Client, ClientMethod} from "app/server/lib/Client";
+  import {LoginSession} from "app/server/lib/LoginSession";
+  import * as http from "http";
+
+  class Comm {
+    constructor(server: http.Server, options: any);
+    public broadcastMessage(type: string, messageData: any): void;
+    public destroyAllClients(): void;
+    public setServerVersion(serverVersion: string|null): void;
+    public setServerActivation(active: boolean): void;
+    public getSessionIdFromCookie(gristSidCookie: string): string;
+    public getOrCreateSession(sessionId: string, req: any): LoginSession;
+    public registerMethods(methods: {[name: string]: ClientMethod}): void;
+    public getClient(clientId: string): Client;
+    public testServerShutdown(): Promise<void>;
+    public testServerRestart(): Promise<void>;
+    public testSetClientPersistence(ttlMs: number): void;
+  }
+  namespace Comm {
+    function sendDocMessage(client: Client, docFD: number, type: string, mesageData: any, fromSelf: boolean): void;
+  }
+  export = Comm;
+}
+
+declare module "app/server/lib/shutdown" {
+  export function addCleanupHandler<T>(context: T, method: (this: T) => void, timeout?: number, name?: string): void;
+  export function removeCleanupHandlers<T>(context: T): void;
+  export function cleanupOnSignals(...signalNames: string[]): void;
+  export function exit(optExitCode?: number): void;
+}
+
+// There is a @types/bluebird, but it's not great, and breaks for some of our usages.
+declare module "bluebird";
+
+// Redlock types refer to bluebird.Disposer.
+declare module "bluebird" {
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  class Disposer<T> {}
+}
+
+// TODO This is a module by Grist Labs; we should add index.d.ts to it.
+declare module "@gristlabs/basket-api" {
+  interface Item { [colId: string]: any; }
+  interface ColValues { [colId: string]: any[]; }
+  interface AuthToken { [authProvider: string]: string; }
+
+  class Basket {
+    public static addBasket(login: AuthToken): Promise<string>;
+    public static getBaskets(login: AuthToken): Promise<string[]>;
+
+    public basketId: Readonly<string>;
+    public apiKey: Readonly<string|undefined>;
+
+    constructor(basketId: string, apiKey?: string);
+    public addTable(optTableId: string): Promise<string>;
+    public getTable(tableId: string): Promise<Item[]>;
+    public renameTable(oldTableId: string, newTableId: string): Promise<void>;
+    public replaceTableData(tableId: string, columnValues: ColValues): Promise<void>;
+    public deleteTable(tableId: string): Promise<void>;
+    public getTables(): Promise<string[]>;
+    public uploadAttachment(attachmentId: string, attachment: Buffer): Promise<void>;
+    public delete(login: AuthToken): Promise<void>;
+  }
+  namespace Basket {}
+  export = Basket;
+}
+
+// Used in one place, and the typings are almost entirely unhelpful.
+declare module "multiparty";
+
+// Used in one place, for one call.
+declare module "chokidar";
+
+// Used in one place
+declare module "mime-types";
+
+// Used in one place
+declare module "morgan";
+declare module "cookie";
+declare module "cookie-parser";
+declare module "@gristlabs/express-session";
+
+// Used for command line path tweaks.
+declare module "app-module-path" {
+  export function addPath(path: string): void;
+}
+
+// Used in tests
+declare module "ws";
+
+// version of pidusage that has correct ctime on linux
+declare module '@gristlabs/pidusage' {
+  import * as pidusage from 'pidusage';
+  export = pidusage;
+}