68 lines
2.1 KiB
TypeScript
68 lines
2.1 KiB
TypeScript
/**
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* Makes the forms check the same limits on what users submit as the server
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* enforces, by holding them in one place.
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*
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* @module
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*/
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/**
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* Read by the validators and services, which refuse what breaks a limit, and
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* by the forms, which say so before sending. Lengths are JavaScript string
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* lengths, so an emoji may count for two. The category limits are checked on
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* the server only.
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*/
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export const VALIDATION = {
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USERNAME_MIN: 1,
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USERNAME_MAX: 32,
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PASSWORD_MIN: 8,
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PASSWORD_MAX: 128,
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DUMP_TITLE_MAX: 200,
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/** Applies to a dump's note, which the API calls its comment. */
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DUMP_COMMENT_MAX: 5000,
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PLAYLIST_TITLE_MAX: 100,
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PLAYLIST_DESCRIPTION_MAX: 2000,
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COMMENT_BODY_MAX: 5000,
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USER_DESCRIPTION_MAX: 2000,
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CATEGORY_NAME_MAX: 50,
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CATEGORY_SLUG_MAX: 50,
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CHAT_MESSAGE_MAX: 2000,
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} as const;
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/**
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* Matches a valid username, made of letters, digits and underscores within the
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* `VALIDATION` limits. Sign-up checks it on both sides. It uses the same `\w`
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* that a mention's pattern reads a name with.
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*/
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export const USERNAME_RE: RegExp = new RegExp(
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`^[a-zA-Z0-9_]{${VALIDATION.USERNAME_MIN},${VALIDATION.USERNAME_MAX}}$`,
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);
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/**
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* How often a dump's or a playlist's slug may change, counted from the aliases
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* the changes left: 3 times a day. Moderators are exempt. slug-service refuses
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* a change past it with a 429, and the edit forms say what the limit is.
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*/
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export const RENAME_LIMITS = {
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SLUG: { count: 3, windowMs: 24 * 3_600_000 },
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} as const;
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/**
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* Matches an id the server makes with `crypto.randomUUID()`. A route checks
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* one before it names a file on disk, and shared/attachment.ts finds the
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* attachments a text links by it.
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*/
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export const UUID_RE: RegExp =
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/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/;
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/**
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* Matches an email address well enough to catch a typo; only the reset email
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* arriving proves it.
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*/
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export const EMAIL_RE: RegExp = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
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/**
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* The largest file a file dump may hold, in bytes. dump-service refuses a
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* bigger one, and the create form before uploading it.
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*/
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export const DUMP_MAX_FILE_SIZE_BYTES: number = 50 * 1024 * 1024;
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