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Kieran
2023-07-22 19:37:46 +01:00
parent 74a3cd7754
commit b1f93c9fd8
65 changed files with 1115 additions and 1029 deletions
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181
packages/system/src/nostr-link.ts
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@ -2,109 +2,108 @@ import { bech32ToHex, hexToBech32 } from "@snort/shared";
import { NostrPrefix, decodeTLV, TLVEntryType } from ".";
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 {
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;
}
}
export function tryParseNostrLink(link: string, prefixHint?: NostrPrefix): NostrLink | undefined {
try {
return parseNostrLink(link, prefixHint);
} catch {
return undefined;
if (parsedLink.type === NostrPrefix.PublicKey || parsedLink.type === NostrPrefix.Note) {
return parsedLink.id.length === 64;
}
return true;
} catch {
return false;
}
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);
}
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),
};
if (isPrefix(NostrPrefix.PublicKey)) {
const id = bech32ToHex(entity);
} 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.PublicKey,
id: id,
encode: () => hexToBech32(NostrPrefix.PublicKey, id),
type: NostrPrefix.Profile,
id,
relays,
kind,
author,
encode,
};
} else if (isPrefix(NostrPrefix.Note)) {
const id = bech32ToHex(entity);
} else if (isPrefix(NostrPrefix.Event)) {
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),
type: NostrPrefix.Event,
id,
relays,
kind,
author,
encode,
};
} 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) {
} else if (isPrefix(NostrPrefix.Address)) {
return {
type: prefixHint,
id: link,
encode: () => hexToBech32(prefixHint, link),
type: NostrPrefix.Address,
id,
relays,
kind,
author,
encode,
};
}
throw new Error("Invalid nostr link");
} else if (prefixHint) {
return {
type: prefixHint,
id: link,
encode: () => hexToBech32(prefixHint, link),
};
}
throw new Error("Invalid nostr link");
}