template.rs

/*
Example demonstrating how to do the key rotation on the ledger.

Steward already exists on the ledger and its DID/Verkey are obtained using seed.
Trust Anchor's DID/Verkey pair is generated and stored into wallet.
Stewards builds NYM request in order to add Trust Anchor to the ledger.
Once NYM transaction is done, Trust Anchor wants to change its Verkey.
First, temporary key is created in the wallet.
Second, Trust Anchor builds NYM request to replace the Verkey on the ledger.
Third, when NYM transaction succeeds, Trust Anchor makes new Verkey permanent in wallet
(it was only temporary before).

To assert the changes, Trust Anchor reads both the Verkey from the wallet and the Verkey from the ledger
using GET_NYM request, to make sure they are equal to the new Verkey, not the original one
added by Steward
*/

// ------------------------------------------
// crates.io
// ------------------------------------------
#[macro_use]
extern crate serde_json;


// ------------------------------------------
// hyperledger crates
// ------------------------------------------
extern crate indyrs as indy;                      // rust wrapper project

use std::env;
use std::fs;
use std::io::Write;
use std::path::PathBuf;

use serde_json::Value;

use indy::did;
use indy::future::Future;
use indy::ledger;
use indy::pool;
use indy::wallet;

const PROTOCOL_VERSION: usize = 2;
static USEFUL_CREDENTIALS: &'static str = r#"{"key": "12345678901234567890123456789012"}"#;

fn main() {
    let wallet_name = "wallet";
    let pool_name = "pool";

    // Step 2 code goes here.

    // Step 3 code goes here.

    // Step 4 code goes here.
}

fn create_genesis_txn_file_for_pool(pool_name: &str) -> String {
    let test_pool_ip = env::var("TEST_POOL_IP").unwrap_or("127.0.0.1".to_string());

    let node_txns = format!(
        r#"{{"reqSignature":{{}},"txn":{{"data":{{"data":{{"alias":"Node1","blskey":"4N8aUNHSgjQVgkpm8nhNEfDf6txHznoYREg9kirmJrkivgL4oSEimFF6nsQ6M41QvhM2Z33nves5vfSn9n1UwNFJBYtWVnHYMATn76vLuL3zU88KyeAYcHfsih3He6UHcXDxcaecHVz6jhCYz1P2UZn2bDVruL5wXpehgBfBaLKm3Ba","blskey_pop":"RahHYiCvoNCtPTrVtP7nMC5eTYrsUA8WjXbdhNc8debh1agE9bGiJxWBXYNFbnJXoXhWFMvyqhqhRoq737YQemH5ik9oL7R4NTTCz2LEZhkgLJzB3QRQqJyBNyv7acbdHrAT8nQ9UkLbaVL9NBpnWXBTw4LEMePaSHEw66RzPNdAX1","client_ip":"{0}","client_port":9702,"node_ip":"{0}","node_port":9701,"services":["VALIDATOR"]}},"dest":"Gw6pDLhcBcoQesN72qfotTgFa7cbuqZpkX3Xo6pLhPhv"}},"metadata":{{"from":"Th7MpTaRZVRYnPiabds81Y"}},"type":"0"}},"txnMetadata":{{"seqNo":1,"txnId":"fea82e10e894419fe2bea7d96296a6d46f50f93f9eeda954ec461b2ed2950b62"}},"ver":"1"}}
           {{"reqSignature":{{}},"txn":{{"data":{{"data":{{"alias":"Node2","blskey":"37rAPpXVoxzKhz7d9gkUe52XuXryuLXoM6P6LbWDB7LSbG62Lsb33sfG7zqS8TK1MXwuCHj1FKNzVpsnafmqLG1vXN88rt38mNFs9TENzm4QHdBzsvCuoBnPH7rpYYDo9DZNJePaDvRvqJKByCabubJz3XXKbEeshzpz4Ma5QYpJqjk","blskey_pop":"Qr658mWZ2YC8JXGXwMDQTzuZCWF7NK9EwxphGmcBvCh6ybUuLxbG65nsX4JvD4SPNtkJ2w9ug1yLTj6fgmuDg41TgECXjLCij3RMsV8CwewBVgVN67wsA45DFWvqvLtu4rjNnE9JbdFTc1Z4WCPA3Xan44K1HoHAq9EVeaRYs8zoF5","client_ip":"{0}","client_port":9704,"node_ip":"{0}","node_port":9703,"services":["VALIDATOR"]}},"dest":"8ECVSk179mjsjKRLWiQtssMLgp6EPhWXtaYyStWPSGAb"}},"metadata":{{"from":"EbP4aYNeTHL6q385GuVpRV"}},"type":"0"}},"txnMetadata":{{"seqNo":2,"txnId":"1ac8aece2a18ced660fef8694b61aac3af08ba875ce3026a160acbc3a3af35fc"}},"ver":"1"}}
           {{"reqSignature":{{}},"txn":{{"data":{{"data":{{"alias":"Node3","blskey":"3WFpdbg7C5cnLYZwFZevJqhubkFALBfCBBok15GdrKMUhUjGsk3jV6QKj6MZgEubF7oqCafxNdkm7eswgA4sdKTRc82tLGzZBd6vNqU8dupzup6uYUf32KTHTPQbuUM8Yk4QFXjEf2Usu2TJcNkdgpyeUSX42u5LqdDDpNSWUK5deC5","blskey_pop":"QwDeb2CkNSx6r8QC8vGQK3GRv7Yndn84TGNijX8YXHPiagXajyfTjoR87rXUu4G4QLk2cF8NNyqWiYMus1623dELWwx57rLCFqGh7N4ZRbGDRP4fnVcaKg1BcUxQ866Ven4gw8y4N56S5HzxXNBZtLYmhGHvDtk6PFkFwCvxYrNYjh","client_ip":"{0}","client_port":9706,"node_ip":"{0}","node_port":9705,"services":["VALIDATOR"]}},"dest":"DKVxG2fXXTU8yT5N7hGEbXB3dfdAnYv1JczDUHpmDxya"}},"metadata":{{"from":"4cU41vWW82ArfxJxHkzXPG"}},"type":"0"}},"txnMetadata":{{"seqNo":3,"txnId":"7e9f355dffa78ed24668f0e0e369fd8c224076571c51e2ea8be5f26479edebe4"}},"ver":"1"}}
           {{"reqSignature":{{}},"txn":{{"data":{{"data":{{"alias":"Node4","blskey":"2zN3bHM1m4rLz54MJHYSwvqzPchYp8jkHswveCLAEJVcX6Mm1wHQD1SkPYMzUDTZvWvhuE6VNAkK3KxVeEmsanSmvjVkReDeBEMxeDaayjcZjFGPydyey1qxBHmTvAnBKoPydvuTAqx5f7YNNRAdeLmUi99gERUU7TD8KfAa6MpQ9bw","blskey_pop":"RPLagxaR5xdimFzwmzYnz4ZhWtYQEj8iR5ZU53T2gitPCyCHQneUn2Huc4oeLd2B2HzkGnjAff4hWTJT6C7qHYB1Mv2wU5iHHGFWkhnTX9WsEAbunJCV2qcaXScKj4tTfvdDKfLiVuU2av6hbsMztirRze7LvYBkRHV3tGwyCptsrP","client_ip":"{0}","client_port":9708,"node_ip":"{0}","node_port":9707,"services":["VALIDATOR"]}},"dest":"4PS3EDQ3dW1tci1Bp6543CfuuebjFrg36kLAUcskGfaA"}},"metadata":{{"from":"TWwCRQRZ2ZHMJFn9TzLp7W"}},"type":"0"}},"txnMetadata":{{"seqNo":4,"txnId":"aa5e817d7cc626170eca175822029339a444eb0ee8f0bd20d3b0b76e566fb008"}},"ver":"1"}}"#, test_pool_ip);

    let pool_config_pathbuf = write_genesis_txn_to_file(pool_name, node_txns.as_str());
    pool_config_pathbuf.as_os_str().to_str().unwrap().to_string()
}

fn write_genesis_txn_to_file(pool_name: &str,
                             txn_file_data: &str) -> PathBuf {
    let mut txn_file_path = env::temp_dir();
    txn_file_path.push("indy_client");
    txn_file_path.push(format!("{}.txn", pool_name));

    if !txn_file_path.parent().unwrap().exists() {
        fs::DirBuilder::new()
            .recursive(true)
            .create(txn_file_path.parent().unwrap()).unwrap();
    }

    let mut f = fs::File::create(txn_file_path.as_path()).unwrap();
    f.write_all(txn_file_data.as_bytes()).unwrap();
    f.flush().unwrap();
    f.sync_all().unwrap();

    txn_file_path
}