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Kieran
2023-06-08 12:45:23 +02:00
parent 2b80109e3b
commit 81ccb95d82
256 changed files with 4856 additions and 529 deletions
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114
packages/app/src/SnortUtils/index.ts
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@ -13,12 +13,9 @@ import {
EventKind,
encodeTLV,
NostrPrefix,
decodeTLV,
TLVEntryType,
NostrEvent,
} from "System";
import { MetadataCache } from "Cache";
import NostrLink from "Element/NostrLink";
MetadataCache,
} from "@snort/system";
export const sha256 = (str: string | Uint8Array): u256 => {
return utils.bytesToHex(hash(str));
@ -506,113 +503,6 @@ export function getUrlHostname(url?: string) {
}
}
export interface NostrLink {
type: NostrPrefix;
id: string;
kind?: number;
author?: string;
relays?: Array<string>;
encode(): string;
}
export function validateNostrLink(link: string): boolean {
try {
const parsedLink = parseNostrLink(link);
if (!parsedLink) {
return false;
}
if (parsedLink.type === NostrPrefix.PublicKey || parsedLink.type === NostrPrefix.Note) {
return parsedLink.id.length === 64;
}
return true;
} catch {
return false;
}
}
export function tryParseNostrLink(link: string, prefixHint?: NostrPrefix): NostrLink | undefined {
try {
return parseNostrLink(link, prefixHint);
} catch {
return undefined;
}
}
export function parseNostrLink(link: string, prefixHint?: NostrPrefix): NostrLink {
const entity = link.startsWith("web+nostr:") || link.startsWith("nostr:") ? link.split(":")[1] : link;
const isPrefix = (prefix: NostrPrefix) => {
return entity.startsWith(prefix);
};
if (isPrefix(NostrPrefix.PublicKey)) {
const id = bech32ToHex(entity);
if (id.length !== 64) throw new Error("Invalid nostr link, must contain 32 byte id");
return {
type: NostrPrefix.PublicKey,
id: id,
encode: () => hexToBech32(NostrPrefix.PublicKey, id),
};
} else if (isPrefix(NostrPrefix.Note)) {
const id = bech32ToHex(entity);
if (id.length !== 64) throw new Error("Invalid nostr link, must contain 32 byte id");
return {
type: NostrPrefix.Note,
id: id,
encode: () => hexToBech32(NostrPrefix.Note, id),
};
} else if (isPrefix(NostrPrefix.Profile) || isPrefix(NostrPrefix.Event) || isPrefix(NostrPrefix.Address)) {
const decoded = decodeTLV(entity);
const id = decoded.find(a => a.type === TLVEntryType.Special)?.value as string;
const relays = decoded.filter(a => a.type === TLVEntryType.Relay).map(a => a.value as string);
const author = decoded.find(a => a.type === TLVEntryType.Author)?.value as string;
const kind = decoded.find(a => a.type === TLVEntryType.Kind)?.value as number;
const encode = () => {
return entity; // return original
};
if (isPrefix(NostrPrefix.Profile)) {
if (id.length !== 64) throw new Error("Invalid nostr link, must contain 32 byte id");
return {
type: NostrPrefix.Profile,
id,
relays,
kind,
author,
encode,
};
} else if (isPrefix(NostrPrefix.Event)) {
if (id.length !== 64) throw new Error("Invalid nostr link, must contain 32 byte id");
return {
type: NostrPrefix.Event,
id,
relays,
kind,
author,
encode,
};
} else if (isPrefix(NostrPrefix.Address)) {
return {
type: NostrPrefix.Address,
id,
relays,
kind,
author,
encode,
};
}
} else if (prefixHint) {
return {
type: prefixHint,
id: link,
encode: () => hexToBech32(prefixHint, link),
};
}
throw new Error("Invalid nostr link");
}
export function sanitizeRelayUrl(url: string) {
try {
return new URL(url).toString();