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59 lines
1.7 KiB
59 lines
1.7 KiB
# create a BIP70 payment request signed with a certificate
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import tlslite
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import time
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import hashlib
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from electrum import paymentrequest_pb2 as pb2
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from electrum.transaction import Transaction
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from electrum import bitcoin
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from electrum import x509
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chain_file = 'mychain.pem'
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cert_file = 'mycert.pem'
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amount = 1000000
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address = "18U5kpCAU4s8weFF8Ps5n8HAfpdUjDVF64"
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memo = "blah"
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out_file = "payreq"
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with open(chain_file, 'r') as f:
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chain = tlslite.X509CertChain()
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chain.parsePemList(f.read())
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certificates = pb2.X509Certificates()
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certificates.certificate.extend(map(lambda x: str(x.bytes), chain.x509List))
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with open(cert_file, 'r') as f:
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rsakey = tlslite.utils.python_rsakey.Python_RSAKey.parsePEM(f.read())
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def make_payment_request(amount, script, memo):
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"""Generates a http PaymentRequest object"""
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pd = pb2.PaymentDetails()
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pd.outputs.add(amount=amount, script=script)
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now = int(time.time())
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pd.time = now
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pd.expires = now + 15*60
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pd.memo = memo
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pd.payment_url = 'http://payment_ack.url'
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pr = pb2.PaymentRequest()
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pr.serialized_payment_details = pd.SerializeToString()
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pr.pki_type = 'x509+sha256'
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pr.pki_data = certificates.SerializeToString()
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pr.signature = ''
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msgBytes = bytearray(pr.SerializeToString())
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hashBytes = bytearray(hashlib.sha256(msgBytes).digest())
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sig = rsakey.sign(x509.PREFIX_RSA_SHA256 + hashBytes)
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pr.signature = bytes(sig)
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return pr.SerializeToString()
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script = Transaction.pay_script('address', address).decode('hex')
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pr_string = make_payment_request(amount, script, memo)
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with open(out_file,'wb') as f:
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f.write(pr_string)
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print "Payment request was written to file '%s'"%out_file
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