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 def get_coinbase_input_id(prepare_coinbase_input_id_hexstr):
 121     innerhash_bytes = sha3_256(bytes.fromhex(prepare_coinbase_input_id_hexstr)).digest()
 122     coinbase_input_id_hexstr = sha3_256(b'entryid:coinbase1:' + innerhash_bytes).hexdigest()
 123     return coinbase_input_id_hexstr
 124
 125
 126 '''
 127 decode_raw_tx decode raw transaction
 128 testdata 1:
 129     raw_tx_str: 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
 130     network_str: solotnet
 131     transaction:
 132 {
 133   "fee": 20000000,
 134   "inputs": [
 135     {
 136       "address": "sm1qjv6mrj755aah3cenzksw6y9ftvfw0jjgk0l2mw",
 137       "amount": 41250000000,
 138       "asset_definition": {},
 139       "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
 140       "control_program": "00149335b1cbd4a77b78e33315a0ed10a95b12e7ca48",
 141       "input_id": "6e3f378ed844b143a335e306f4ba26746157589c87e8fc8cba6463c566c56768",
 142       "spent_output_id": "f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17",
 143       "type": "spend",
 144       "witness_arguments": [
 145         "897e2d9d24a3b5faaed0579dee7597b401491595675f897504f8945b29d836235bd2fca72a3ad0cae814628973ebcd142d9d6cc92d0b2571b69e5370a98a340c",
 146         "8cb7fb3086f58db9a31401b99e8c658be66134fb9034de1d5c462679270b0907"
 147       ]
 148     }
 149   ],
 150   "outputs": [
 151     {
 152       "address": "sm1qqm8yk6ym5qn0l5a8efjar5ze23k5k79qnvtslj",
 153       "amount": 40930000000,
 154       "asset_definition": {},
 155       "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
 156       "control_program": "001406ce4b689ba026ffd3a7ca65d1d059546d4b78a0",
 157       "id": "74c73266730d3c6ea32e8667ef9b867068736b84be240fe9fef205fa68bb7b95",
 158       "position": 0,
 159       "type": "control"
 160     },
 161     {
 162       "address": "sm1q0y57lyve0jp8h6lkp7nq37rkagn4y0z8hvh6kq",
 163       "amount": 300000000,
 164       "asset_definition": {},
 165       "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
 166       "control_program": "00147929ef91997c827bebf60fa608f876ea27523c47",
 167       "id": "f115a833d0c302a5006032858a7ed3987f0feb2daf2a9f849384950e4766af51",
 168       "position": 1,
 169       "type": "control"
 170     }
 171   ],
 172   "size": 333,
 173   "time_range": 0,
 174   "tx_id": "814a73dd57bae67c604f9cbc696cbc42035577423408cb9267136ed971e2bf63",
 175   "version": 1
 176 }
 177 '''
 178 def decode_raw_tx(raw_tx_str, network_str):
 179     tx = {
 180         "fee": 0,
 181         "inputs": [],
 182         "outputs": [],
 183         "size": 0,
 184         "time_range": 0,
 185         "tx_id": "",
 186         "version": 0
 187     }
 188     tx['fee'] = 0
 189     tx['size'] = len(raw_tx_str) // 2
 190     length = 0
 191     offset = 2
 192     tx['version'], length = get_uvarint(raw_tx_str[offset:offset+18])
 193     offset = offset + 2 * length
 194     tx['time_range'], length = get_uvarint(raw_tx_str[offset:offset+18])
 195     offset = offset + 2 * length
 196     tx_input_amount, length = get_uvarint(raw_tx_str[offset:offset+8])
 197     offset = offset + 2 * length
 198     prepare_mux_hexstr = (tx_input_amount).to_bytes((tx_input_amount.bit_length() + 7) // 8, 'little').hex()
 199     prepare_tx_id_hexstr = (tx['version']).to_bytes(8, 'little').hex() + (tx['time_range']).to_bytes(8, 'little').hex()
 200     for _ in range(tx_input_amount):
 201         _, length = get_uvarint(raw_tx_str[offset:offset+18])
 202         offset = offset + 2 * length
 203         _, length = get_uvarint(raw_tx_str[offset:offset+18])
 204         offset = offset + 2 * length
 205         input_type = int(raw_tx_str[offset:offset+2], 16)
 206         offset += 2
 207         if input_type == 0: # issue
 208             tx_input = {
 209                 "amount": 0,
 210                 "asset_definition": "", # TODO:fix it!!
 211                 "asset_id": "",
 212                 "input_id": "",
 213                 "issuance_program": "",
 214                 "type": "",
 215                 "witness_arguments": []
 216             }
 217             tx_input['type'] = "issue"
 218             _, length = get_uvarint(raw_tx_str[offset:offset+18])
 219             offset = offset + 2 * length
 220             nonce = raw_tx_str[offset:offset+16]
 221             offset += 16
 222             nonce_hash_hexstr = sha3_256(bytes.fromhex(nonce)).hexdigest()
 223             tx_input['asset_id'] = raw_tx_str[offset:offset+64]
 224             offset += 64
 225             tx_input['amount'], length = get_uvarint(raw_tx_str[offset:offset+18])
 226             offset = offset + 2 * length
 227             _, length = get_uvarint(raw_tx_str[offset:offset+18])
 228             offset = offset + 2 * length
 229             asset_definition_size, length = get_uvarint(raw_tx_str[offset:offset+18])
 230             offset = offset + 2 * length
 231             tx_input['asset_definition'] = bytes.fromhex(raw_tx_str[offset:offset+2*asset_definition_size]).decode()
 232             offset = offset + 2 * asset_definition_size
 233             _, length = get_uvarint(raw_tx_str[offset:offset+18])
 234             offset = offset + 2 * length
 235             issuance_program_length, length = get_uvarint(raw_tx_str[offset:offset+18])
 236             offset = offset + 2 * length
 237             tx_input['issuance_program'] = raw_tx_str[offset:offset+2*issuance_program_length]
 238             offset = offset + 2 * issuance_program_length
 239             witness_arguments_amount, length = get_uvarint(raw_tx_str[offset:offset+18])
 240             offset = offset + 2 * length
 241             for _ in range(witness_arguments_amount):
 242                 argument_length, length = get_uvarint(raw_tx_str[offset:offset+18])
 243                 offset = offset + 2 * length
 244                 argument = raw_tx_str[offset:offset+2*argument_length]
 245                 offset = offset + 2 * argument_length
 246                 tx_input['witness_arguments'].append(argument)
 247             prepare_issue_hexstr = nonce_hash_hexstr + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex()
 248             tx_input['input_id'] = get_issue_input_id(prepare_issue_hexstr)
 249             tx['inputs'].append(tx_input)
 250             prepare_mux_hexstr += tx_input['input_id'] + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000'
 251         elif input_type == 1: # spend
 252             tx_input = {
 253                 "address": "",
 254                 "amount": 0,
 255                 "asset_definition": {},
 256                 "asset_id": "",
 257                 "control_program": "",
 258                 "input_id": "",
 259                 "spent_output_id": "",
 260                 "type": "",
 261                 "witness_arguments": []
 262             }
 263             tx_input['type'] = "spend"
 264             _, length = get_uvarint(raw_tx_str[offset:offset+18])
 265             offset = offset + 2 * length
 266             source_id = raw_tx_str[offset:offset+64]
 267             offset += 64
 268             tx_input['asset_id'] = raw_tx_str[offset:offset+64]
 269             offset += 64
 270             tx_input['amount'], length = get_uvarint(raw_tx_str[offset:offset+18])
 271             offset = offset + 2 * length
 272             tx['fee'] += tx_input['amount']
 273             source_positon, length = get_uvarint(raw_tx_str[offset:offset+18])
 274             offset = offset + 2 * length
 275             vmversion, length = get_uvarint(raw_tx_str[offset:offset+18])
 276             offset = offset + 2 * length
 277             control_program_length, length = get_uvarint(raw_tx_str[offset:offset+18])
 278             offset = offset + 2 * length
 279             tx_input['control_program'] = raw_tx_str[offset:offset+2*control_program_length]
 280             offset = offset + 2 * control_program_length
 281             tx_input['address'] = receiver.create_address(tx_input['control_program'], network_str)['address']
 282             _, length = get_uvarint(raw_tx_str[offset:offset+18])
 283             offset = offset + 2 * length
 284             witness_arguments_amount, length = get_uvarint(raw_tx_str[offset:offset+18])
 285             offset = offset + 2 * length
 286             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'])
 287             tx_input['input_id'] = get_input_id(tx_input['spent_output_id'])
 288             for _ in range(witness_arguments_amount):
 289                 argument_length, length = get_uvarint(raw_tx_str[offset:offset+18])
 290                 offset = offset + 2 * length
 291                 argument = raw_tx_str[offset:offset+2*argument_length]
 292                 offset = offset + 2 * argument_length
 293                 tx_input['witness_arguments'].append(argument)
 294             tx['inputs'].append(tx_input)
 295             prepare_mux_hexstr += tx_input['input_id'] + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000'
 296         elif input_type == 2: # coinbase
 297             tx_input = {
 298                 "amount": 0,
 299                 "arbitrary": "",
 300                 "asset_definition": {},
 301                 "asset_id": "0000000000000000000000000000000000000000000000000000000000000000",
 302                 "input_id": "",
 303                 "type": "",
 304                 "witness_arguments": []
 305             }
 306             tx_input['type'] = "coinbase"
 307             arbitrary_length, length = get_uvarint(raw_tx_str[offset:offset+18])
 308             prepare_coinbase_input_id_hexstr = raw_tx_str[offset:offset+2*length]
 309             offset = offset + 2 * length
 310             tx_input['arbitrary'] = raw_tx_str[offset:offset+2*arbitrary_length]
 311             prepare_coinbase_input_id_hexstr += tx_input['arbitrary']
 312             offset = offset + 2 * arbitrary_length
 313             tx_input['input_id'] = get_coinbase_input_id(prepare_coinbase_input_id_hexstr)
 314             offset = offset + 2
 315             tx['inputs'].append(tx_input)
 316             prepare_mux_hexstr += tx_input['input_id'] + 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
 317     if tx_input['type'] == "coinbase":
 318         offset = offset + 2 * length
 319     tx_output_amount, length = get_uvarint(raw_tx_str[offset:offset+18])
 320     if (tx_input['type'] == "issue") or (tx_input['type'] == "spend"):
 321         prepare_mux_hexstr += '0100000000000000' + '0151'
 322         mux_id_hexstr = get_mux_id(prepare_mux_hexstr)
 323     prepare_tx_id_hexstr += (tx_output_amount).to_bytes((tx_output_amount.bit_length() + 7) // 8, 'little').hex()
 324     for i in range(tx_output_amount):
 325         tx_output = {
 326             "address": "",
 327             "amount": 0,
 328             "asset_definition": {},
 329             "asset_id": "",
 330             "control_program": "",
 331             "id": "",
 332             "position": 0,
 333             "type": ""
 334         }
 335         tx_output['position'] = i
 336         _, length = get_uvarint(raw_tx_str[offset:offset+18])
 337         offset = offset + 2 * length
 338         _, length = get_uvarint(raw_tx_str[offset:offset+18])
 339         offset = offset + 2 * length
 340         tx_output['asset_id'] = raw_tx_str[offset:offset+64]
 341         offset = offset + 64
 342         tx_output['amount'], length = get_uvarint(raw_tx_str[offset:offset+18])
 343         if tx_input['type'] == "coinbase":
 344             prepare_mux_hexstr = prepare_mux_hexstr + (tx_output['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000' + '0100000000000000' + '0151'
 345             mux_id_hexstr = get_mux_id(prepare_mux_hexstr)
 346         offset = offset + 2 * length
 347         if tx_output['asset_id'] == 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff':
 348             tx['fee'] -= tx_output['amount']
 349         _, length = get_uvarint(raw_tx_str[offset:offset+18])
 350         offset = offset + 2 * length
 351         control_program_length, length = get_uvarint(raw_tx_str[offset:offset+18])
 352         offset = offset + 2 * length
 353         tx_output['control_program'] = raw_tx_str[offset:offset+2*control_program_length]
 354         offset = offset + 2 * control_program_length
 355         tx_output['address'] = receiver.create_address(tx_output['control_program'], network_str)['address']
 356         _, length = get_uvarint(raw_tx_str[offset:offset+18])
 357         offset = offset + 2 * length
 358         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']
 359         tx_output['id'] = get_output_id(prepare_output_id_hexstr)
 360         prepare_tx_id_hexstr += tx_output['id']
 361         tx_output['type'] = 'control'
 362         tx['outputs'].append(tx_output)
 363     if tx_input['type'] == "coinbase":
 364         tx['fee'] = 0
 365     tx['tx_id'] = get_tx_id(prepare_tx_id_hexstr)
 366     return tx