save-schema-and-cred-def.rs

/*
Example demonstrating how to write Schema and Cred Definition on the ledger

As a setup, Steward (already on the ledger) adds Trust Anchor to the ledger.

After that, Steward builds the SCHEMA request to add new schema to the ledger.
Once that succeeds, Trust Anchor uses anonymous credentials to issue and store
credential definition for the Schema 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 indy::did;
use indy::future::Future;
use indy::ledger;
use indy::pool;
use indy::wallet;
use indy::anoncreds;

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

fn main() {
    let wallet_name = "walletXX";
    let pool_name = "poolXX";

    indy::pool::set_protocol_version(PROTOCOL_VERSION).wait().unwrap();

    println!("1. Creating a new local pool ledger configuration that can be used later to connect pool nodes");
    let pool_config_file = create_genesis_txn_file_for_pool(pool_name);
    let pool_config = json!({
        "genesis_txn" : &pool_config_file
    });
    pool::create_pool_ledger_config(&pool_name, Some(&pool_config.to_string())).wait().unwrap();

    println!("2. Open pool ledger and get the pool handle from libindy");
    let pool_handle: i32 = pool::open_pool_ledger(&pool_name, None).wait().unwrap();

    println!("3. Creates a new wallet");
    let config = json!({ "id" : wallet_name.to_string() }).to_string();
    wallet::create_wallet(&config, USEFUL_CREDENTIALS).wait().unwrap();

    println!("4. Open wallet and get the wallet handle from libindy");
    let wallet_handle: i32 = wallet::open_wallet(&config, USEFUL_CREDENTIALS).wait().unwrap();

    println!("5. Generating and storing steward DID and Verkey");
    let first_json_seed = json!({
        "seed":"000000000000000000000000Steward1"
    }).to_string();
    let (steward_did, _steward_verkey) = did::create_and_store_my_did(wallet_handle, &first_json_seed).wait().unwrap();

    println!("6. Generating and storing Trust Anchor DID and Verkey");
    let (trustee_did, trustee_verkey) = did::create_and_store_my_did(wallet_handle, &"{}".to_string()).wait().unwrap();

    println!("7. Build NYM request to add Trust Anchor to the ledger");
    let build_nym_request: String = ledger::build_nym_request(&steward_did, &trustee_did, Some(&trustee_verkey), None, Some("TRUST_ANCHOR")).wait().unwrap();

    println!("8. Sending the nym request to ledger");
    let _build_nym_sign_submit_result: String = ledger::sign_and_submit_request(pool_handle, wallet_handle, &steward_did, &build_nym_request).wait().unwrap();

    println!("9. Create Schema and Build the SCHEMA request to add new schema to the ledger as a Steward");
    let name = "gvt";
    let version = "1.0";
    let attributes = r#"["age", "sex", "height", "name"]"#;
    let (_schema_id, schema_json) = anoncreds::issuer_create_schema(&steward_did, name, version, attributes).wait().unwrap();

    let build_schema_request: String = ledger::build_schema_request(&steward_did, &schema_json).wait().unwrap();

    println!("10. Sending the SCHEMA request to the ledger");
    let _signed_schema_request_response = ledger::sign_and_submit_request(pool_handle, wallet_handle, &steward_did, &build_schema_request).wait().unwrap();

    println!("11. Creating and storing CREDENTAIL DEFINITION using anoncreds as Trust Anchor, for the given Schema");
    let config_json = r#"{ "support_revocation": false }"#;
    let tag = r#"TAG1"#;

    let (_cred_def_id, _cred_def_json) = anoncreds::issuer_create_and_store_credential_def(wallet_handle, &trustee_did, &schema_json, tag, None, config_json).wait().unwrap();

    // CLEAN UP
    println!("12. Close and delete wallet");
    indy::wallet::close_wallet(wallet_handle).wait().unwrap();
    indy::wallet::delete_wallet(&config, USEFUL_CREDENTIALS).wait().unwrap();

    println!("13. Close pool and delete pool ledger config");
    pool::close_pool_ledger(pool_handle).wait().unwrap();
    pool::delete_pool_ledger(&pool_name).wait().unwrap();
}

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
}