Function shareCommand

src/cli/share.ts:38–103

(
  conversationId: string,
  options: ShareCommandOptions = {}
)

}

export async function shareCommand(
  conversationId: string,
  options: ShareCommandOptions = {}
): Promise<void> {
  const selected = await resolveConversation(conversationId, options.client);

  const passphrase = keychainLoad();
  if (!passphrase) {
    throw new Error(
      "No passphrase found in system keychain. Run `sharedcontext init` again to store it."
    );
  }
  if (!isIdentityAvailable()) {
    throw new Error("No local identity found. Run `sharedcontext init` first.");
  }

  const { encryptionKey, identityKey, walletAddress } = resolveIdentity(passphrase);
  const shareKey = new Uint8Array(randomBytes(32));
  const shareId = uuidv4();

  const payload: ConversationSharePayload = {
    v: 1,
    createdAt: new Date().toISOString(),
    conversation: selected,
  };
  const serialized = new TextEncoder().encode(JSON.stringify(payload));
  const encrypted = encrypt(serialized, shareKey);

  const signature = signShard(encrypted, identityKey);
  const tags: Tag[] = [
    { name: "App-Name", value: "sharedcontext" },
    { name: "Type", value: "conversation-share" },
    { name: "Share-Id", value: shareId },
    { name: "Wallet", value: walletAddress },
    { name: "Timestamp", value: String(Math.floor(Date.now() / 1000)) },
    { name: "Signature", value: signature },
    { name: "Content-Type", value: "application/octet-stream" },
  ];

  const backend = new TurboBackend({
    privateKeyHex: Buffer.from(identityKey).toString("hex"),
    testnet: process.env.SHAREDCONTEXT_TESTNET === "true",
  });
  const result = await backend.upload(encrypted, tags);

  const token = encodeShareToken({
    v: 1,
    sid: shareId,
    k: Buffer.from(shareKey).toString("base64url"),
    t: result.txId,
  });
  const url = `${SHARE_URL_PREFIX}${token}`;

  console.log("Conversation shared.");
  console.log(`Link: ${url}`);
  console.log("\nImport on another device:");
  console.log(`sharedcontext sync ${url}`);