Adds sanity checks to make sure pisad and bitcoind are configured in the same way

pisa-btc/pisa/tools.py

@@ -25,3 +25,32 @@ def check_tx_in_chain(bitcoin_cli, tx_id, debug, logging, parent='', tx_label='t
             logging.error("[{}] JSONRPCException. Error code {}".format(parent, e))
 
     return tx_in_chain, confirmations
+
+
+def can_connect_to_bitcoind(bitcoin_cli):
+    can_connect = True
+
+    try:
+        bitcoin_cli.help()
+    except ConnectionRefusedError:
+        can_connect = False
+
+    return can_connect
+
+
+def in_correct_network(bitcoin_cli, network):
+    mainnet_genesis_block_hash = "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"
+    testnet3_genesis_block_hash = "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"
+    correct_network = False
+
+    genesis_block_hash = bitcoin_cli.getblockhash(0)
+
+    if network == 'mainnet' and genesis_block_hash == mainnet_genesis_block_hash:
+        correct_network = True
+    elif network == 'testnet' and genesis_block_hash == testnet3_genesis_block_hash:
+        correct_network = True
+    elif network == 'regtest' and genesis_block_hash not in [mainnet_genesis_block_hash, testnet3_genesis_block_hash]:
+        correct_network = True
+
+    return correct_network
+