12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273
import { AuthorShortname } from "../util/doc-types.ts";import { isErr, ValidationError } from "../util/errors.ts";import { base32BytesToString, base32StringToBytes } from "./base32.ts";import { AuthorKeypair, KeypairBytes, ShareKeypair } from "./crypto-types.ts";import {  assembleAuthorAddress,  assembleShareAddress,  parseAuthorOrShareAddress,} from "../core-validators/addresses.ts";
//================================================================================
/** Combine a shortname with a raw KeypairBytes to make an AuthorKeypair */export function encodeAuthorKeypairToStrings(  shortname: AuthorShortname,  pair: KeypairBytes,): AuthorKeypair {  return ({    address: assembleAuthorAddress(shortname, base32BytesToString(pair.pubkey)),    secret: base32BytesToString(pair.secret),  });}
/** Combine a name with a raw KeypairBytes to make an ShareKeypair */export function encodeShareKeypairToStrings(  name: string,  pair: KeypairBytes,) {  return ({    address: assembleShareAddress(name, base32BytesToString(pair.pubkey)),    secret: base32BytesToString(pair.secret),  });}
/** Convert a keypair (author / share) back into a raw KeypairBytes for use in crypto operations. */export function decodeKeypairToBytes(  pair: AuthorKeypair | ShareKeypair,): KeypairBytes | ValidationError {  try {    const address = isAuthorKeypair(pair) ? pair.address : pair.shareAddress;
    const parsed = parseAuthorOrShareAddress(address);    if (isErr(parsed)) return parsed;    const bytes = {      pubkey: base32StringToBytes(parsed.pubkey),      secret: base32StringToBytes(pair.secret),    };    if (bytes.pubkey.length !== 32) {      // this is already checked by parseAuthorAddress so we can't test it here      // but we'll test it again just to make sure.      return new ValidationError(        `pubkey bytes should be 32 bytes long, not ${bytes.pubkey.length} after base32 decoding.  ${address}`,      );    }    if (bytes.secret.length !== 32) {      return new ValidationError(        `secret bytes should be 32 bytes long, not ${bytes.secret.length} after base32 decoding.  ${pair.secret}`,      );    }    return bytes;  } catch (err) {    return new ValidationError(      "crash while decoding author keypair: " + err.message,    );  }}
export function isAuthorKeypair(  keypair: AuthorKeypair | ShareKeypair,): keypair is AuthorKeypair {  return "address" in keypair;}