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silverbullet/server/instance.ts

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import { SilverBulletHooks } from "../common/manifest.ts";
import { AssetBundlePlugSpacePrimitives } from "../common/spaces/asset_bundle_space_primitives.ts";
import { FilteredSpacePrimitives } from "../common/spaces/filtered_space_primitives.ts";
import { SpacePrimitives } from "../common/spaces/space_primitives.ts";
import { ensureSettingsAndIndex } from "../common/util.ts";
import { AssetBundle } from "../plugos/asset_bundle/bundle.ts";
import { KvPrimitives } from "../plugos/lib/kv_primitives.ts";
import { System } from "../plugos/system.ts";
import { BuiltinSettings } from "../web/types.ts";
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import { JWTIssuer } from "./crypto.ts";
import { gitIgnoreCompiler } from "./deps.ts";
import { ServerSystem } from "./server_system.ts";
import { ShellBackend } from "./shell_backend.ts";
import { determineStorageBackend } from "./storage_backend.ts";
export type SpaceServerConfig = {
hostname: string;
namespace: string;
// Enable username/password auth
auth?: { user: string; pass: string };
// Additional API auth token
authToken?: string;
pagesPath: string;
syncOnly?: boolean;
clientEncryption?: boolean;
};
export class SpaceServer {
public pagesPath: string;
auth?: { user: string; pass: string };
authToken?: string;
hostname: string;
private settings?: BuiltinSettings;
spacePrimitives!: SpacePrimitives;
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jwtIssuer: JWTIssuer;
// Only set when syncOnly == false
private serverSystem?: ServerSystem;
system?: System<SilverBulletHooks>;
clientEncryption: boolean;
syncOnly: boolean;
constructor(
config: SpaceServerConfig,
public shellBackend: ShellBackend,
private plugAssetBundle: AssetBundle,
private kvPrimitives: KvPrimitives,
) {
this.pagesPath = config.pagesPath;
this.hostname = config.hostname;
this.auth = config.auth;
this.authToken = config.authToken;
this.clientEncryption = !!config.clientEncryption;
this.syncOnly = !!config.syncOnly;
if (this.clientEncryption) {
// Sync only will forced on when encryption is enabled
this.syncOnly = true;
}
this.jwtIssuer = new JWTIssuer(kvPrimitives);
}
async init() {
let fileFilterFn: (s: string) => boolean = () => true;
this.spacePrimitives = new FilteredSpacePrimitives(
new AssetBundlePlugSpacePrimitives(
await determineStorageBackend(this.kvPrimitives, this.pagesPath),
this.plugAssetBundle,
),
(meta) => fileFilterFn(meta.name),
async () => {
await this.reloadSettings();
if (typeof this.settings?.spaceIgnore === "string") {
fileFilterFn = gitIgnoreCompiler(this.settings.spaceIgnore).accepts;
} else {
fileFilterFn = () => true;
}
},
);
// system = undefined in databaseless mode (no PlugOS instance on the server and no DB)
if (!this.syncOnly) {
// Enable server-side processing
const serverSystem = new ServerSystem(
this.spacePrimitives,
this.kvPrimitives,
this.shellBackend,
);
this.serverSystem = serverSystem;
}
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if (this.auth) {
// Initialize JWT issuer
await this.jwtIssuer.init(
JSON.stringify({ auth: this.auth, authToken: this.authToken }),
);
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}
if (this.serverSystem) {
await this.serverSystem.init();
this.system = this.serverSystem.system;
// Swap in the space primitives from the server system
this.spacePrimitives = this.serverSystem.spacePrimitives;
}
await this.reloadSettings();
console.log("Booted server with hostname", this.hostname);
}
async reloadSettings() {
if (!this.clientEncryption) {
// Only attempt this when the space is not encrypted
this.settings = await ensureSettingsAndIndex(this.spacePrimitives);
} else {
this.settings = {
indexPage: "index",
};
}
}
}