mirror of
https://github.com/bulwarkmail/webmail.git
synced 2026-11-05 00:14:18 +00:00
Linus Rath
5c5d982f9d
A draft saved offline now stays on the device under a stand-in id and goes to the server by itself when it's back. Until now every save was refused and the composer showed "not saved". - `lib/store/drafts`: one pending create per draft, however often it's saved. A draft from the server edited offline is replaced by create, then destroy, so a failure leaves a copy. Each create has a fixed Message-ID, looked up in Drafts after a lost response. A refused draft stays on the device with its error and can be opened. Changed on another device: both are kept and the user is told. - `JMAPClient`: stand-in ids in Email/get and Email/set resolve like calendar's, also when answering from the device. A file attached offline stays readable, and is uploaded before a save that names it. - Held files and kept mail files are stored in 1 MB chunks. Orphans are dropped at the end of a flush, counting what drafts need. - `lib/store/mail/attachments.ts`: attachments, inline images and raw messages per scope, newest first, after everything else in a pass, with eviction that spares pinned mail and never sees held files. - `mail.rawBlob` and `mail.rawStatus` for an offline export. Changed test assertions: `outbox.heldFile` and `mail.getBlob` return `blob` instead of `data`, so a file isn't held whole in memory. The attachment tests ignore raw downloads, and mail-sync runs with attachments off, because raw messages add a commit per message.
90 lines
3.4 KiB
TypeScript
90 lines
3.4 KiB
TypeScript
/**
|
|
* Answers a JMAP request from the local store: the store acting as a server
|
|
* toward the UI. Every call gets its own answer, in order, as a server would:
|
|
* one the store can't answer gets a per-call error and the rest still work.
|
|
*/
|
|
|
|
import { MethodError, type MethodContext, type MethodHandler, type MethodResult, type StoreArea } from '../area';
|
|
import type { JmapResponse, MethodCall, MethodResponse } from './transport';
|
|
|
|
class BadReference extends Error {}
|
|
|
|
/** RFC 8620 §3.7 result references, with the `*` array step. */
|
|
export function resolvePointer(value: unknown, path: string): unknown {
|
|
const steps = path.split('/').slice(1).map((s) => s.replace(/~1/g, '/').replace(/~0/g, '~'));
|
|
const walk = (node: unknown, i: number): unknown => {
|
|
if (i === steps.length) return node;
|
|
const step = steps[i];
|
|
if (step === '*') {
|
|
if (!Array.isArray(node)) throw new BadReference();
|
|
return node.flatMap((item) => {
|
|
const out = walk(item, i + 1);
|
|
return Array.isArray(out) ? out : [out];
|
|
});
|
|
}
|
|
if (node === null || typeof node !== 'object') throw new BadReference();
|
|
return walk((node as Record<string, unknown>)[step], i + 1);
|
|
};
|
|
return walk(value, 0);
|
|
}
|
|
|
|
function resolveArgs(args: Record<string, unknown>, done: readonly MethodResponse[]): Record<string, unknown> {
|
|
const out: Record<string, unknown> = {};
|
|
for (const [key, value] of Object.entries(args)) {
|
|
if (!key.startsWith('#')) {
|
|
out[key] = value;
|
|
continue;
|
|
}
|
|
const ref = value as { resultOf?: string; name?: string; path?: string };
|
|
const source = done.find(([name, , id]) => id === ref.resultOf && name === ref.name);
|
|
if (!source || typeof ref.path !== 'string') throw new BadReference();
|
|
out[key.slice(1)] = resolvePointer(source[1], ref.path);
|
|
}
|
|
return out;
|
|
}
|
|
|
|
export function buildMethodTable(areas: readonly StoreArea[]): Map<string, MethodHandler> {
|
|
const table = new Map<string, MethodHandler>();
|
|
for (const area of areas) {
|
|
for (const [name, handler] of Object.entries(area.methods)) {
|
|
if (table.has(name)) throw new Error(`Two store areas answer ${name}`);
|
|
table.set(name, handler);
|
|
}
|
|
}
|
|
return table;
|
|
}
|
|
|
|
/** Answers are copied by structured clone on the way to the page, so callers can't mutate stored objects. */
|
|
export async function answerRequest(
|
|
ctx: Omit<MethodContext, 'createdIds' | 'calls'>,
|
|
methods: ReadonlyMap<string, MethodHandler>,
|
|
calls: readonly MethodCall[],
|
|
): Promise<JmapResponse | null> {
|
|
const done: MethodResponse[] = [];
|
|
const full: MethodContext = { ...ctx, createdIds: new Map(), calls };
|
|
let answered = 0;
|
|
for (const call of calls) {
|
|
const [name, rawArgs, callId] = call;
|
|
const handler = methods.get(name);
|
|
if (!handler) {
|
|
done.push(['error', { type: 'serverUnavailable', description: `${name} needs the server` }, callId]);
|
|
continue;
|
|
}
|
|
try {
|
|
const args = resolveArgs(rawArgs, done);
|
|
const result: MethodResult = await handler(full, args, call);
|
|
done.push([name, result, callId]);
|
|
answered += 1;
|
|
} catch (error) {
|
|
if (error instanceof BadReference) {
|
|
done.push(['error', { type: 'invalidResultReference' }, callId]);
|
|
} else if (error instanceof MethodError) {
|
|
done.push(['error', { type: error.type, description: error.description }, callId]);
|
|
} else {
|
|
throw error;
|
|
}
|
|
}
|
|
}
|
|
return answered === 0 ? null : { methodResponses: done };
|
|
}
|