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py-gva/pay.py

114 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python3
import sys, re, os.path, json, ast
from shutil import copyfile
if not os.path.isfile("userEnv.py"):
copyfile("userEnv.py.template", "userEnv.py")
from termcolor import colored
from userEnv import dunikey, node
from natools import fmt, sign, get_privkey
from gql import gql, Client
from gql.transport.aiohttp import AIOHTTPTransport
if not (dunikey):
print("Please set the path to your pubsec keychain in userEnv.py file.")
sys.exit(1)
# Define Duniter GVA node
transport = AIOHTTPTransport(url=node)
client = Client(transport=transport, fetch_schema_from_transport=True)
issuer = get_privkey(dunikey, "pubsec").pubkey
recipient = sys.argv[1]
amount = int(sys.argv[2])
if len(sys.argv) > 3:
comment = sys.argv[3]
else:
comment = ""
## GraphQL queries
# Build the TX Document
queryBuild = gql(
"""
query ($recipient: String!, $issuer: String!, $amount: Int!, $comment: String!){ genTxs(
amount: $amount
comment: $comment
issuer: $issuer
recipient: $recipient
)
}
"""
)
paramsBuild = {
"recipient": recipient,
"issuer": issuer,
"amount": amount,
"comment": comment
}
# Send TX document
try:
txDoc = str(client.execute(queryBuild, variable_values=paramsBuild))[13:-3].replace('\\n','\n')
except Exception as e:
message = ast.literal_eval(str(e))["message"]
sys.stderr.write("Echec de la génération du document:\n" + message + "\n")
sys.exit(1)
# Check document
# print(txDoc) # For debug
docList = txDoc.splitlines()
for i, line in enumerate(docList):
if re.search("Issuers:", line):
issuerRaw = docList[(i + 1) % len(docList)]
if re.search("Outputs:", line):
outputRaw = docList[(i + 1) % len(docList)].split(":")
outAmount = outputRaw[0]
outPubkey = outputRaw[2].split("SIG(")[1].replace(')','')
if re.search("Comment:", line):
commentRaw = line.split(': ', 1)[1]
if issuerRaw != issuer or int(outAmount) != amount or outPubkey != recipient or commentRaw != comment:
sys.stderr.write(colored("Le document généré est corrompu !\nNe fait plus confiance au noeud " + node + "\n", 'red'))
sys.stderr.write(colored(issuerRaw + " envoi " + outAmount + " vers " + outPubkey + " with comment: " + commentRaw + "\n", "yellow"))
sys.exit(1)
else:
print("Le document généré est conforme.")
# sys.exit(0) # For debug
# Sign TX document
signature = fmt["64"](sign(txDoc.encode(), get_privkey(dunikey, "pubsec"))[:-len(txDoc.encode())])
signedDoc = txDoc + signature.decode()
#print(signedDoc) # For debug
querySign = gql(
"""
mutation ($signedDoc: String!){ tx(
rawTx: $signedDoc
) {
version
issuers
outputs
}
}
"""
)
paramsSign = {
"signedDoc": signedDoc
}
# Send TX Signed document
try:
sentTX = client.execute(querySign, variable_values=paramsSign)
print(colored("Transaction effectué avec succès !", "green"))
except Exception as e:
message = ast.literal_eval(str(e))["message"]
sys.stderr.write("Echec de la transaction:\n" + message + "\n")
sys.exit(1)
#print(sentTX) #For debug