64 lines
1.9 KiB
TypeScript
64 lines
1.9 KiB
TypeScript
import { z } from '@/deps.ts';
|
|
|
|
/** Validates individual items in an array, dropping any that aren't valid. */
|
|
function filteredArray<T extends z.ZodTypeAny>(schema: T) {
|
|
return z.any().array().catch([])
|
|
.transform((arr) => (
|
|
arr.map((item) => {
|
|
const parsed = schema.safeParse(item);
|
|
return parsed.success ? parsed.data : undefined;
|
|
}).filter((item): item is z.infer<T> => Boolean(item))
|
|
));
|
|
}
|
|
|
|
/** Parses a JSON string into its native type. */
|
|
const jsonSchema = z.string().transform((value, ctx) => {
|
|
try {
|
|
return JSON.parse(value) as unknown;
|
|
} catch (_e) {
|
|
ctx.addIssue({ code: z.ZodIssueCode.custom, message: 'Invalid JSON' });
|
|
return z.NEVER;
|
|
}
|
|
});
|
|
|
|
/** Parses a Nostr emoji tag. */
|
|
const emojiTagSchema = z.tuple([z.literal('emoji'), z.string(), z.string().url()]);
|
|
|
|
/** https://developer.mozilla.org/en-US/docs/Glossary/Base64#the_unicode_problem */
|
|
const decode64Schema = z.string().transform((value, ctx) => {
|
|
try {
|
|
const binString = atob(value);
|
|
const bytes = Uint8Array.from(binString, (m) => m.codePointAt(0)!);
|
|
return new TextDecoder().decode(bytes);
|
|
} catch (_e) {
|
|
ctx.addIssue({ code: z.ZodIssueCode.custom, message: 'Invalid base64', fatal: true });
|
|
return z.NEVER;
|
|
}
|
|
});
|
|
|
|
/** Parses a hashtag, eg `#yolo`. */
|
|
const hashtagSchema = z.string().regex(/^\w{1,30}$/);
|
|
|
|
/**
|
|
* Limits the length before trying to parse the URL.
|
|
* https://stackoverflow.com/a/417184/8811886
|
|
*/
|
|
const safeUrlSchema = z.string().max(2048).url();
|
|
|
|
/** https://github.com/colinhacks/zod/issues/1630#issuecomment-1365983831 */
|
|
const booleanParamSchema = z.enum(['true', 'false']).transform((value) => value === 'true');
|
|
|
|
/** Schema for `File` objects. */
|
|
const fileSchema = z.custom<File>((value) => value instanceof File);
|
|
|
|
export {
|
|
booleanParamSchema,
|
|
decode64Schema,
|
|
emojiTagSchema,
|
|
fileSchema,
|
|
filteredArray,
|
|
hashtagSchema,
|
|
jsonSchema,
|
|
safeUrlSchema,
|
|
};
|