As far as I know it is not possible to search encrypted memos. What to do when I want to go through all me sent and received transfers containing an encrypted memo text?
The following script uses beem. More information about installing this can be found on the github site.
The following script asks for a username and a memo key. Then it go through the complete account history and decrypts all encrypted transfer memos. The decrypted text is printed and stored into a csv file.
Store the following lines into a file decrypt_memos.py.
#!/usr/bin/python
from beem import Steem
from beem.memo import Memo
from beem.account import Account
from beem.amount import Amount
import getpass
import six
import csv
if __name__ == "__main__":
if six.PY3:
account = input("Enter account name: ")
else:
account = raw_input("Enter account name: ")
memo_wif = getpass.getpass(prompt='Enter the memo key of %s:' % account)
stm = Steem(keys=[memo_wif])
acc = Account(account, steem_instance=stm)
with open('encrypted_memos.csv', mode='w') as csv_file:
fieldnames = ['timestamp', 'from', 'to', 'amount', 'decrypted_memo']
writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
writer.writeheader()
for h in acc.history_reverse(only_ops=["transfer"]):
if len(h["memo"]) < 2:
continue
if h["memo"][0] != '#':
continue
memo = Memo(from_account=h["from"], to_account=h["to"], steem_instance=stm)
try:
decrypted_memo = memo.decrypt(h["memo"])
except:
decrypted_memo = "decryption failed."
amount = Amount(h["amount"], steem_instance=stm)
print("%s - from: %s, to: %s, amount: %s, decr. text: %s" % (h["timestamp"], h["from"], h["to"], str(amount), decrypted_memo))
writer.writerow({"timestamp": h["timestamp"], "from": h["from"], "to": h["to"], "amount": str(amount), "decrypted_memo": decrypted_memo})
The script can then be started by:
python decrypt_memos.py
or
python3 decrypt_memos.py
The script generates an output as:
2018-10-13T07:00:21 - from: beembot, to: holger80, amount: 0.001 SBD, decr. text: This is a test
and writes all memos in a csv-file "encrypted_memos.csv".
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Okay, now I definitely have to learn to use beem..^^
I really need some old messages.
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Business idea: decryption service:)
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