gristlabs_grist-core/app/server/lib/ICreate.ts
Florent 7694588a42
External storage: split checkBackend and configure (follow-up #545) (#567)
This fixes an issue with external storage in saas environment.

See https://github.com/gristlabs/grist-core/pull/546/files#r1259340397

Co-authored-by: Florent FAYOLLE <florent.fayolle@beta.gouv.fr>
2023-07-13 02:44:46 -04:00

161 lines
5.6 KiB
TypeScript

import {GristDeploymentType} from 'app/common/gristUrls';
import {getThemeBackgroundSnippet} from 'app/common/Themes';
import {Document} from 'app/gen-server/entity/Document';
import {HomeDBManager} from 'app/gen-server/lib/HomeDBManager';
import {ExternalStorage} from 'app/server/lib/ExternalStorage';
import {createDummyTelemetry, GristServer} from 'app/server/lib/GristServer';
import {IBilling} from 'app/server/lib/IBilling';
import {INotifier} from 'app/server/lib/INotifier';
import {ISandbox, ISandboxCreationOptions} from 'app/server/lib/ISandbox';
import {IShell} from 'app/server/lib/IShell';
import {createSandbox, SpawnFn} from 'app/server/lib/NSandbox';
import {SqliteVariant} from 'app/server/lib/SqliteCommon';
import {ITelemetry} from 'app/server/lib/Telemetry';
export interface ICreate {
Billing(dbManager: HomeDBManager, gristConfig: GristServer): IBilling;
Notifier(dbManager: HomeDBManager, gristConfig: GristServer): INotifier;
Telemetry(dbManager: HomeDBManager, gristConfig: GristServer): ITelemetry;
Shell?(): IShell; // relevant to electron version of Grist only.
// Create a space to store files externally, for storing either:
// - documents. This store should be versioned, and can be eventually consistent.
// - meta. This store need not be versioned, and can be eventually consistent.
// For test purposes an extra prefix may be supplied. Stores with different prefixes
// should not interfere with each other.
ExternalStorage(purpose: 'doc' | 'meta', testExtraPrefix: string): ExternalStorage | undefined;
NSandbox(options: ISandboxCreationOptions): ISandbox;
deploymentType(): GristDeploymentType;
sessionSecret(): string;
// Check configuration of the app early enough to show on startup.
configure?(): Promise<void>;
// Optionally perform sanity checks on the configured storage, throwing a fatal error if it is not functional
checkBackend?(): Promise<void>;
// Return a string containing 1 or more HTML tags to insert into the head element of every
// static page.
getExtraHeadHtml?(): string;
getStorageOptions?(name: string): ICreateStorageOptions|undefined;
getSqliteVariant?(): SqliteVariant;
getSandboxVariants?(): Record<string, SpawnFn>;
}
export interface ICreateActiveDocOptions {
safeMode?: boolean;
docUrl?: string;
docApiUrl?: string;
doc?: Document;
}
export interface ICreateStorageOptions {
name: string;
check(): boolean;
checkBackend?(): Promise<void>;
create(purpose: 'doc'|'meta', extraPrefix: string): ExternalStorage|undefined;
}
export interface ICreateNotifierOptions {
create(dbManager: HomeDBManager, gristConfig: GristServer): INotifier|undefined;
}
export interface ICreateBillingOptions {
create(dbManager: HomeDBManager, gristConfig: GristServer): IBilling|undefined;
}
export interface ICreateTelemetryOptions {
create(dbManager: HomeDBManager, gristConfig: GristServer): ITelemetry|undefined;
}
export function makeSimpleCreator(opts: {
deploymentType: GristDeploymentType,
sessionSecret?: string,
storage?: ICreateStorageOptions[],
billing?: ICreateBillingOptions,
notifier?: ICreateNotifierOptions,
telemetry?: ICreateTelemetryOptions,
sandboxFlavor?: string,
shell?: IShell,
getExtraHeadHtml?: () => string,
getSqliteVariant?: () => SqliteVariant,
getSandboxVariants?: () => Record<string, SpawnFn>,
}): ICreate {
const {deploymentType, sessionSecret, storage, notifier, billing, telemetry} = opts;
return {
deploymentType() { return deploymentType; },
Billing(dbManager, gristConfig) {
return billing?.create(dbManager, gristConfig) ?? {
addEndpoints() { /* do nothing */ },
addEventHandlers() { /* do nothing */ },
addWebhooks() { /* do nothing */ },
async addMiddleware() { /* do nothing */ },
addPages() { /* do nothing */ },
};
},
Notifier(dbManager, gristConfig) {
return notifier?.create(dbManager, gristConfig) ?? {
get testPending() { return false; },
deleteUser() { throw new Error('deleteUser unavailable'); },
};
},
ExternalStorage(purpose, extraPrefix) {
for (const s of storage || []) {
if (s.check()) {
return s.create(purpose, extraPrefix);
}
}
return undefined;
},
Telemetry(dbManager, gristConfig) {
return telemetry?.create(dbManager, gristConfig) ?? createDummyTelemetry();
},
NSandbox(options) {
return createSandbox(opts.sandboxFlavor || 'unsandboxed', options);
},
sessionSecret() {
const secret = process.env.GRIST_SESSION_SECRET || sessionSecret;
if (!secret) {
throw new Error('need GRIST_SESSION_SECRET');
}
return secret;
},
async configure() {
for (const s of storage || []) {
if (s.check()) {
break;
}
}
},
async checkBackend() {
for (const s of storage || []) {
if (s.check()) {
await s.checkBackend?.();
break;
}
}
},
...(opts.shell && {
Shell() {
return opts.shell as IShell;
},
}),
getExtraHeadHtml() {
if (opts.getExtraHeadHtml) {
return opts.getExtraHeadHtml();
}
const elements: string[] = [];
if (process.env.APP_STATIC_INCLUDE_CUSTOM_CSS === 'true') {
elements.push('<link rel="stylesheet" href="custom.css">');
}
elements.push(getThemeBackgroundSnippet());
return elements.join('\n');
},
getStorageOptions(name: string) {
return storage?.find(s => s.name === name);
},
getSqliteVariant: opts.getSqliteVariant,
getSandboxVariants: opts.getSandboxVariants,
};
}