app/model/transaction.py

   1 import requests
   2 import json
   3 from _pysha3 import sha3_256
   4 from app.model import receiver
   5
   6 # submit_transaction broadcast raw transaction
   7 # raw_transaction_str is signed transaction,
   8 # network_str is mainnet or testnet
   9 # test data 1:
  10 #   raw_transaction_str: 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
  11 #   network_str: testnet
  12 def submit_transaction(raw_transaction_str, network_str):
  13     raw_transaction_dict = {
  14         "transaction": raw_transaction_str
  15     }
  16     raw_transaction_json = json.dumps(raw_transaction_dict)
  17     headers = {
  18         "content-type": "application/json",
  19         "accept": "application/json"
  20     }
  21     if network_str == "mainnet":
  22         url = "https://blockmeta.com/api/v2/broadcast-transaction"
  23     else:
  24         url = "https://blockmeta.com/api/wisdom/broadcast-transaction"
  25     response = requests.post(url, headers=headers, data=raw_transaction_json)
  26     return {
  27         "response": response.text[:-1]
  28     }
  29
  30
  31 def decode_raw_transaction(raw_transaction_str):
  32     raw_transaction_dict = {
  33         "raw_transaction": raw_transaction_str
  34     }
  35     raw_transaction_json = json.dumps(raw_transaction_dict)
  36     headers = {
  37         "content-type": "application/json",
  38         "accept": "application/json"
  39     }
  40     url = 'http://127.0.0.1:9888/decode-raw-transaction'
  41     response = requests.post(url, headers=headers, data=raw_transaction_json)
  42     return {
  43         "response": response.text[:-1]
  44     }
  45
  46
  47 def get_uvarint(uvarint_str):
  48     uvarint_bytes = bytes.fromhex(uvarint_str)
  49     x, s, i = 0, 0, 0
  50     while True:
  51         b = uvarint_bytes[i]
  52         if b < 0x80:
  53             if i > 9 or i == 9 and b > 1:
  54                 return "overflow"
  55             return x | int(b) << s, i + 1
  56         x |= int(b & 0x7f) << s
  57         s += 7
  58         i += 1
  59
  60
  61 '''
  62 get_spend_output_id create tx_input spend output id
  63 test data 1:
  64   source_id_hexstr: 28b7b53d8dc90006bf97e0a4eaae2a72ec3d869873188698b694beaf20789f21
  65   asset_id_hexstr: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
  66   amount_int: 41250000000
  67   source_position_int: 0
  68   vmversion_int: 1
  69   control_program_hexstr: 00149335b1cbd4a77b78e33315a0ed10a95b12e7ca48
  70   spend_output_id_hexstr: f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17
  71 '''
  72 def get_spend_output_id(source_id_hexstr, asset_id_hexstr, amount_int, source_position_int, vmversion_int, control_program_hexstr):
  73     amount_hexstr = amount_int.to_bytes(8, byteorder='little').hex()
  74     source_position_hexstr = source_position_int.to_bytes(8, byteorder='little').hex()
  75     vmversion_hexstr = vmversion_int.to_bytes(8, byteorder='little').hex()
  76     cp_length_int = len(control_program_hexstr) // 2
  77     cp_length_hexstr = cp_length_int.to_bytes((cp_length_int.bit_length() + 7) // 8, byteorder='little').hex()
  78     sc_hexstr = source_id_hexstr + asset_id_hexstr + amount_hexstr + source_position_hexstr + vmversion_hexstr + cp_length_hexstr +  control_program_hexstr
  79     innerhash_bytes = sha3_256(bytes.fromhex(sc_hexstr)).digest()
  80     spend_bytes = b'entryid:output1:' + innerhash_bytes
  81     spend_output_id_hexstr = sha3_256(spend_bytes).hexdigest()
  82     return spend_output_id_hexstr
  83
  84 '''
  85 get_input_id create tx input_id
  86 test data 1:
  87     spend_output_id_hexstr: f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17
  88     input_id_hexstr: 6e3f378ed844b143a335e306f4ba26746157589c87e8fc8cba6463c566c56768
  89 '''
  90 def get_input_id(spend_output_id_hexstr):
  91     innerhash_bytes = sha3_256(bytes.fromhex(spend_output_id_hexstr)).digest()
  92     input_id_hexstr = sha3_256(b'entryid:spend1:' + innerhash_bytes).hexdigest()
  93     return input_id_hexstr
  94
  95
  96 def get_mux_id(prepare_mux_hexstr):
  97     innerhash_bytes = sha3_256(bytes.fromhex(prepare_mux_hexstr)).digest()
  98     mux_id_hexstr = sha3_256(b'entryid:mux1:' + innerhash_bytes).hexdigest()
  99     return mux_id_hexstr
 100
 101
 102 def get_output_id(prepare_output_id_hexstr):
 103     innerhash_bytes = sha3_256(bytes.fromhex(prepare_output_id_hexstr)).digest()
 104     output_id_hexstr = sha3_256(b'entryid:output1:' + innerhash_bytes).hexdigest()
 105     return output_id_hexstr
 106
 107
 108 def get_tx_id(prepare_tx_id_hexstr):
 109     innerhash_bytes = sha3_256(bytes.fromhex(prepare_tx_id_hexstr)).digest()
 110     tx_id_hexstr = sha3_256(b'entryid:txheader:' + innerhash_bytes).hexdigest()
 111     return tx_id_hexstr
 112
 113
 114 def get_issue_input_id(prepare_issue_hexstr):
 115     innerhash_bytes = sha3_256(bytes.fromhex(prepare_issue_hexstr)).digest()
 116     tx_id_hexstr = sha3_256(b'entryid:issuance1:' + innerhash_bytes).hexdigest()
 117     return tx_id_hexstr
 118
 119
 120 '''
 121 decode_raw_tx decode raw transaction
 122 testdata 1:
 123     raw_tx_str: 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
 124     network_str: solotnet
 125     transaction:
 126 {
 127   "fee": 20000000,
 128   "inputs": [
 129     {
 130       "address": "sm1qjv6mrj755aah3cenzksw6y9ftvfw0jjgk0l2mw",
 131       "amount": 41250000000,
 132       "asset_definition": {},
 133       "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
 134       "control_program": "00149335b1cbd4a77b78e33315a0ed10a95b12e7ca48",
 135       "input_id": "6e3f378ed844b143a335e306f4ba26746157589c87e8fc8cba6463c566c56768",
 136       "spent_output_id": "f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17",
 137       "type": "spend",
 138       "witness_arguments": [
 139         "897e2d9d24a3b5faaed0579dee7597b401491595675f897504f8945b29d836235bd2fca72a3ad0cae814628973ebcd142d9d6cc92d0b2571b69e5370a98a340c",
 140         "8cb7fb3086f58db9a31401b99e8c658be66134fb9034de1d5c462679270b0907"
 141       ]
 142     }
 143   ],
 144   "outputs": [
 145     {
 146       "address": "sm1qqm8yk6ym5qn0l5a8efjar5ze23k5k79qnvtslj",
 147       "amount": 40930000000,
 148       "asset_definition": {},
 149       "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
 150       "control_program": "001406ce4b689ba026ffd3a7ca65d1d059546d4b78a0",
 151       "id": "74c73266730d3c6ea32e8667ef9b867068736b84be240fe9fef205fa68bb7b95",
 152       "position": 0,
 153       "type": "control"
 154     },
 155     {
 156       "address": "sm1q0y57lyve0jp8h6lkp7nq37rkagn4y0z8hvh6kq",
 157       "amount": 300000000,
 158       "asset_definition": {},
 159       "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
 160       "control_program": "00147929ef91997c827bebf60fa608f876ea27523c47",
 161       "id": "f115a833d0c302a5006032858a7ed3987f0feb2daf2a9f849384950e4766af51",
 162       "position": 1,
 163       "type": "control"
 164     }
 165   ],
 166   "size": 333,
 167   "time_range": 0,
 168   "tx_id": "814a73dd57bae67c604f9cbc696cbc42035577423408cb9267136ed971e2bf63",
 169   "version": 1
 170 }
 171 '''
 172 def decode_raw_tx(raw_tx_str, network_str):
 173     tx = {
 174         "fee": 0,
 175         "inputs": [],
 176         "outputs": [],
 177         "size": 0,
 178         "time_range": 0,
 179         "tx_id": "",
 180         "version": 0
 181     }
 182     tx['fee'] = 0
 183     tx['size'] = len(raw_tx_str) // 2
 184     length = 0
 185     offset = 2
 186     tx['version'], length = get_uvarint(raw_tx_str[offset:offset+16])
 187     offset = offset + 2 * length
 188     tx['time_range'], length = get_uvarint(raw_tx_str[offset:offset+16])
 189     offset = offset + 2 * length
 190     tx_input_amount, length = get_uvarint(raw_tx_str[offset:offset+8])
 191     offset = offset + 2 * length
 192     prepare_mux_hexstr = (tx_input_amount).to_bytes((tx_input_amount.bit_length() + 7) // 8, 'little').hex()
 193     prepare_tx_id_hexstr = (tx['version']).to_bytes(8, 'little').hex() + (tx['time_range']).to_bytes(8, 'little').hex()
 194     for _ in range(tx_input_amount):
 195         _, length = get_uvarint(raw_tx_str[offset:offset+16])
 196         offset = offset + 2 * length
 197         _, length = get_uvarint(raw_tx_str[offset:offset+16])
 198         offset = offset + 2 * length
 199         input_type = int(raw_tx_str[offset:offset+2], 16)
 200         offset += 2
 201         if input_type == 0: # issue
 202             tx_input = {
 203                 "amount": 0,
 204                 "asset_definition": "", # TODO:fix it!!
 205                 "asset_id": "",
 206                 "input_id": "",
 207                 "issuance_program": "",
 208                 "type": "",
 209                 "witness_arguments": []
 210             }
 211             tx_input['type'] = "issue"
 212             _, length = get_uvarint(raw_tx_str[offset:offset+16])
 213             offset = offset + 2 * length
 214             nonce = raw_tx_str[offset:offset+16]
 215             offset += 16
 216             nonce_hash_hexstr = sha3_256(bytes.fromhex(nonce)).hexdigest()
 217             tx_input['asset_id'] = raw_tx_str[offset:offset+64]
 218             offset += 64
 219             tx_input['amount'], length = get_uvarint(raw_tx_str[offset:offset+16])
 220             offset = offset + 2 * length
 221             _, length = get_uvarint(raw_tx_str[offset:offset+16])
 222             offset = offset + 2 * length
 223             asset_definition_size, length = get_uvarint(raw_tx_str[offset:offset+16])
 224             offset = offset + 2 * length
 225             tx_input['asset_definition'] = bytes.fromhex(raw_tx_str[offset:offset+2*asset_definition_size]).decode()
 226             offset = offset + 2 * asset_definition_size
 227             _, length = get_uvarint(raw_tx_str[offset:offset+16])
 228             offset = offset + 2 * length
 229             issuance_program_length, length = get_uvarint(raw_tx_str[offset:offset+16])
 230             offset = offset + 2 * length
 231             tx_input['issuance_program'] = raw_tx_str[offset:offset+2*issuance_program_length]
 232             offset = offset + 2 * issuance_program_length
 233             witness_arguments_amount, length = get_uvarint(raw_tx_str[offset:offset+16])
 234             offset = offset + 2 * length
 235             for _ in range(witness_arguments_amount):
 236                 argument_length, length = get_uvarint(raw_tx_str[offset:offset+16])
 237                 offset = offset + 2 * length
 238                 argument = raw_tx_str[offset:offset+2*argument_length]
 239                 offset = offset + 2 * argument_length
 240                 tx_input['witness_arguments'].append(argument)
 241             prepare_issue_hexstr = nonce_hash_hexstr + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex()
 242             tx_input['input_id'] = get_issue_input_id(prepare_issue_hexstr)
 243             tx['inputs'].append(tx_input)
 244             prepare_mux_hexstr += tx_input['input_id'] + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000'
 245         elif input_type == 1: # spend
 246             tx_input = {
 247                 "address": "",
 248                 "amount": 0,
 249                 "asset_definition": {},
 250                 "asset_id": "",
 251                 "control_program": "",
 252                 "input_id": "",
 253                 "spent_output_id": "",
 254                 "type": "",
 255                 "witness_arguments": []
 256             }
 257             tx_input['type'] = "spend"
 258             _, length = get_uvarint(raw_tx_str[offset:offset+16])
 259             offset = offset + 2 * length
 260             source_id = raw_tx_str[offset:offset+64]
 261             offset += 64
 262             tx_input['asset_id'] = raw_tx_str[offset:offset+64]
 263             offset += 64
 264             tx_input['amount'], length = get_uvarint(raw_tx_str[offset:offset+16])
 265             offset = offset + 2 * length
 266             tx['fee'] += tx_input['amount']
 267             source_positon, length = get_uvarint(raw_tx_str[offset:offset+16])
 268             offset = offset + 2 * length
 269             vmversion, length = get_uvarint(raw_tx_str[offset:offset+16])
 270             offset = offset + 2 * length
 271             control_program_length, length = get_uvarint(raw_tx_str[offset:offset+16])
 272             offset = offset + 2 * length
 273             tx_input['control_program'] = raw_tx_str[offset:offset+2*control_program_length]
 274             offset = offset + 2 * control_program_length
 275             tx_input['address'] = receiver.create_address(tx_input['control_program'], network_str)['address']
 276             _, length = get_uvarint(raw_tx_str[offset:offset+16])
 277             offset = offset + 2 * length
 278             witness_arguments_amount, length = get_uvarint(raw_tx_str[offset:offset+16])
 279             offset = offset + 2 * length
 280             tx_input['spent_output_id'] = get_spend_output_id(source_id, tx_input['asset_id'], tx_input['amount'], source_positon, vmversion, tx_input['control_program'])
 281             tx_input['input_id'] = get_input_id(tx_input['spent_output_id'])
 282             for _ in range(witness_arguments_amount):
 283                 argument_length, length = get_uvarint(raw_tx_str[offset:offset+16])
 284                 offset = offset + 2 * length
 285                 argument = raw_tx_str[offset:offset+2*argument_length]
 286                 offset = offset + 2 * argument_length
 287                 tx_input['witness_arguments'].append(argument)
 288             tx['inputs'].append(tx_input)
 289             prepare_mux_hexstr += tx_input['input_id'] + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000'
 290         elif input_type == 2: # coinbase
 291             pass
 292     tx_output_amount, length = get_uvarint(raw_tx_str[offset:offset+16])
 293     offset = offset + 2 * length
 294     prepare_mux_hexstr += '0100000000000000' + '0151'
 295     mux_id_hexstr = get_mux_id(prepare_mux_hexstr)
 296     prepare_tx_id_hexstr += (tx_output_amount).to_bytes((tx_output_amount.bit_length() + 7) // 8, 'little').hex()
 297     for i in range(tx_output_amount):
 298         tx_output = {
 299             "address": "",
 300             "amount": 0,
 301             "asset_definition": {},
 302             "asset_id": "",
 303             "control_program": "",
 304             "id": "",
 305             "position": 0,
 306             "type": ""
 307         }
 308         tx_output['position'] = i
 309         _, length = get_uvarint(raw_tx_str[offset:offset+16])
 310         offset = offset + 2 * length
 311         _, length = get_uvarint(raw_tx_str[offset:offset+16])
 312         offset = offset + 2 * length
 313         tx_output['asset_id'] = raw_tx_str[offset:offset+64]
 314         offset = offset + 64
 315         tx_output['amount'], length = get_uvarint(raw_tx_str[offset:offset+16])
 316         offset = offset + 2 * length
 317         if tx_output['asset_id'] == 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff':
 318             tx['fee'] -= tx_output['amount']
 319         _, length = get_uvarint(raw_tx_str[offset:offset+16])
 320         offset = offset + 2 * length
 321         control_program_length, length = get_uvarint(raw_tx_str[offset:offset+16])
 322         offset = offset + 2 * length
 323         tx_output['control_program'] = raw_tx_str[offset:offset+2*control_program_length]
 324         offset = offset + 2 * control_program_length
 325         tx_output['address'] = receiver.create_address(tx_output['control_program'], network_str)['address']
 326         _, length = get_uvarint(raw_tx_str[offset:offset+16])
 327         offset = offset + 2 * length
 328         prepare_output_id_hexstr = mux_id_hexstr + tx_output['asset_id'] + (tx_output['amount']).to_bytes(8, byteorder='little').hex() + (i).to_bytes(8, byteorder='little').hex() + '0100000000000000' + (control_program_length).to_bytes((control_program_length.bit_length() + 7) // 8, 'little').hex() + tx_output['control_program']
 329         tx_output['id'] = get_output_id(prepare_output_id_hexstr)
 330         prepare_tx_id_hexstr += tx_output['id']
 331         tx_output['type'] = 'control'
 332         tx['outputs'].append(tx_output)
 333     tx['tx_id'] = get_tx_id(prepare_tx_id_hexstr)
 334     return tx