tcreated rescan script to take advantage of the new rescanblockchain rpc call - electrum-personal-server - Maximally lightweight electrum server for a single user
HTML git clone https://git.parazyd.org/electrum-personal-server
DIR Log
DIR Files
DIR Refs
DIR README
---
DIR commit 314443ac47f77ce90490744ecef5071581ffe2c1
DIR parent ee671a20350e72a1210f4ad6530677ef563cf2d4
HTML Author: chris-belcher <chris-belcher@users.noreply.github.com>
Date: Sat, 3 Mar 2018 19:21:17 +0000
created rescan script to take advantage of the new rescanblockchain rpc call
Diffstat:
A rescan-script.bat | 4 ++++
A rescan-script.py | 63 +++++++++++++++++++++++++++++++
M server.py | 6 +++---
3 files changed, 70 insertions(+), 3 deletions(-)
---
DIR diff --git a/rescan-script.bat b/rescan-script.bat
t@@ -0,0 +1,3 @@
+@echo off
+python3 rescan-script.py
+pause
+\ No newline at end of file
DIR diff --git a/rescan-script.py b/rescan-script.py
t@@ -0,0 +1,63 @@
+#! /usr/bin/python3
+
+from configparser import ConfigParser, NoSectionError
+from jsonrpc import JsonRpc, JsonRpcError
+from datetime import datetime
+
+def search_for_block_height_of_date(datestr, rpc):
+ target_time = datetime.strptime(datestr, "%d/%m/%Y")
+ bestblockhash = rpc.call("getbestblockhash", [])
+ best_head = rpc.call("getblockheader", [bestblockhash])
+ if target_time > datetime.fromtimestamp(best_head["time"]):
+ print("ERROR: date in the future")
+ return -1
+ genesis_block = rpc.call("getblockheader", [rpc.call("getblockhash", [0])])
+ if target_time < datetime.fromtimestamp(genesis_block["time"]):
+ print("WARNING: date is before the creation of bitcoin")
+ return 0
+ first_height = 0
+ last_height = best_head["height"]
+ while True:
+ m = (first_height + last_height) // 2
+ m_header = rpc.call("getblockheader", [rpc.call("getblockhash", [m])])
+ m_header_time = datetime.fromtimestamp(m_header["time"])
+ m_time_diff = (m_header_time - target_time).total_seconds()
+ if abs(m_time_diff) < 60*60*2: #2 hours
+ return m_header["height"]
+ elif m_time_diff < 0:
+ first_height = m
+ elif m_time_diff > 0:
+ last_height = m
+ else:
+ return -1
+
+def main():
+ try:
+ config = ConfigParser()
+ config.read(["config.cfg"])
+ config.options("electrum-master-public-keys")
+ except NoSectionError:
+ log("Non-existant configuration file `config.cfg`")
+ return
+ rpc = JsonRpc(host = config.get("bitcoin-rpc", "host"),
+ port = int(config.get("bitcoin-rpc", "port")),
+ user = config.get("bitcoin-rpc", "user"),
+ password = config.get("bitcoin-rpc", "password"))
+ user_input = input("Enter earliest wallet creation date (DD/MM/YYYY) "
+ "or block height to rescan from: ")
+ try:
+ height = int(user_input)
+ except ValueError:
+ height = search_for_block_height_of_date(user_input, rpc)
+ if height == -1:
+ return
+ height -= 2016 #go back two weeks for safety
+
+ if input("Rescan from block height " + str(height) + " ? (y/n):") != 'y':
+ return
+ rpc.call("rescanblockchain", [height])
+ print("end")
+
+
+main()
+
DIR diff --git a/server.py b/server.py
t@@ -672,10 +672,10 @@ def main():
get_scriptpubkeys_to_monitor(rpc, config)
if import_needed:
import_addresses(rpc, relevant_spks_addrs)
- #TODO tell people about the rescanblockchain call which allows a range
log("Done.\nIf recovering a wallet which already has existing " +
- "transactions, then\nrestart Bitcoin with -rescan. If your " +
- "wallet is new and empty then just restart this script")
+ "transactions, then\nrun the rescan script. If you're confident " +
+ "that the wallets are new\nand empty then there's no need to " +
+ "rescan, just restart this script")
else:
address_history, unconfirmed_txes = build_address_history(
rpc, relevant_spks_addrs, deterministic_wallets)