mirror of
https://gitlab.com/soapbox-pub/ditto.git
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66 lines
2 KiB
TypeScript
66 lines
2 KiB
TypeScript
import { verifySignature, z } from '@/deps.ts';
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import { jsonSchema } from '../schema.ts';
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/** Schema to validate Nostr hex IDs such as event IDs and pubkeys. */
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const hexIdSchema = z.string().regex(/^[0-9a-f]{64}$/);
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/** Nostr event schema. */
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const eventSchema = z.object({
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id: hexIdSchema,
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kind: z.number(),
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tags: z.array(z.array(z.string())),
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content: z.string(),
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created_at: z.number(),
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pubkey: hexIdSchema,
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sig: z.string(),
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});
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/** Nostr event schema that also verifies the event's signature. */
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const signedEventSchema = eventSchema.refine(verifySignature);
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/** Nostr relay filter schema. */
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const filterSchema = z.object({
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kinds: z.number().int().positive().array().optional(),
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ids: hexIdSchema.array().optional(),
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authors: hexIdSchema.array().optional(),
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since: z.number().int().positive().optional(),
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until: z.number().int().positive().optional(),
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limit: z.number().int().positive().optional(),
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}).and(z.record(
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z.custom<`#${string}`>((val) => typeof val === 'string' && val.startsWith('#')),
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z.string().array(),
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));
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/** Client message to a Nostr relay. */
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const clientMsgSchema = z.union([
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z.tuple([z.literal('REQ'), z.string().min(1)]).rest(filterSchema),
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z.tuple([z.literal('EVENT'), signedEventSchema]),
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z.tuple([z.literal('CLOSE'), z.string().min(1)]),
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]);
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/** Kind 0 content schema. */
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const metaContentSchema = z.object({
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name: z.string().optional().catch(undefined),
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about: z.string().optional().catch(undefined),
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picture: z.string().optional().catch(undefined),
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banner: z.string().optional().catch(undefined),
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nip05: z.string().optional().catch(undefined),
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lud16: z.string().optional().catch(undefined),
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}).partial().passthrough();
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/** Parses kind 0 content from a JSON string. */
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const jsonMetaContentSchema = jsonSchema.pipe(metaContentSchema).catch({});
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/** Author metadata from Event<0>. */
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type MetaContent = z.infer<typeof metaContentSchema>;
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export {
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clientMsgSchema,
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filterSchema,
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hexIdSchema,
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jsonMetaContentSchema,
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type MetaContent,
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metaContentSchema,
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signedEventSchema,
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};
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