From: Chengcheng Zhang <943420582@qq.com>
Date: Fri, 29 Mar 2019 07:25:51 +0000 (+0800)
Subject: add transaction.py
X-Git-Url: http://git.osdn.net/view?p=bytom%2Fpybtm.git;a=commitdiff_plain;h=819ce1a6da2b315a378fdf3fa55327447dc93186

add transaction.py
---

diff --git a/pybtm/__init__.py b/pybtm/__init__.py
index 7afc208..9364db7 100644
--- a/pybtm/__init__.py
+++ b/pybtm/__init__.py
@@ -1,2 +1,2 @@
 name = "pybtm"
-version = "0.0.19"
\ No newline at end of file
+version = "0.0.20"
\ No newline at end of file
diff --git a/pybtm/transaction.py b/pybtm/transaction.py
new file mode 100644
index 0000000..6a62792
--- /dev/null
+++ b/pybtm/transaction.py
@@ -0,0 +1,364 @@
+import requests
+import json
+from _pysha3 import sha3_256
+from .receiver import *
+
+# submit_transaction broadcast raw transaction
+# raw_transaction_str is signed transaction,
+# network_str is mainnet or testnet
+# test data 1:
+#   raw_transaction_str: 070100010160015e0873eddd68c4ba07c9410984799928288ae771bdccc6d974e72c95727813461fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8094ebdc030101160014052620b86a6d5e07311d5019dffa3864ccc8a6bd630240312a052f36efb9826aa1021ec91bc6f125dd07f9c4bff87014612069527e15246518806b654d57fff8b6fe91866a19d5a2fb63a5894335fce92a7b4a7fcd340720e87ca3acdebdcad9a1d0f2caecf8ce0dbfc73d060807a210c6f225488347961402013dffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8082eee0020116001418028ef4f8b8c278907864a1977a5ee6707b2a6b00013cffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80b8b872011600142935e4869d0317d9701c80a02ecf888143cb9dd200
+#   network_str: testnet
+def submit_transaction(raw_transaction_str, network_str):
+    raw_transaction_dict = {
+        "transaction": raw_transaction_str
+    }
+    raw_transaction_json = json.dumps(raw_transaction_dict)
+    headers = {
+        "content-type": "application/json",
+        "accept": "application/json"
+    }
+    if network_str == "mainnet":
+        url = "https://blockmeta.com/api/v2/broadcast-transaction"
+    else:
+        url = "https://blockmeta.com/api/wisdom/broadcast-transaction"
+    response = requests.post(url, headers=headers, data=raw_transaction_json)
+    return response.text[:-1]
+
+
+# def decode_raw_transaction(raw_transaction_str):
+#     raw_transaction_dict = {
+#         "raw_transaction": raw_transaction_str
+#     }
+#     raw_transaction_json = json.dumps(raw_transaction_dict)
+#     headers = {
+#         "content-type": "application/json",
+#         "accept": "application/json"
+#     }
+#     url = 'http://127.0.0.1:9888/decode-raw-transaction'
+#     response = requests.post(url, headers=headers, data=raw_transaction_json)
+#     return {
+#         "response": response.text[:-1]
+#     }
+
+
+def get_uvarint(uvarint_str):
+    uvarint_bytes = bytes.fromhex(uvarint_str)
+    x, s, i = 0, 0, 0
+    while True:
+        b = uvarint_bytes[i]
+        if b < 0x80:
+            if i > 9 or i == 9 and b > 1:
+                return "overflow"
+            return x | int(b) << s, i + 1
+        x |= int(b & 0x7f) << s
+        s += 7
+        i += 1
+
+
+'''
+get_spend_output_id create tx_input spend output id
+test data 1:
+  source_id_hexstr: 28b7b53d8dc90006bf97e0a4eaae2a72ec3d869873188698b694beaf20789f21
+  asset_id_hexstr: ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
+  amount_int: 41250000000
+  source_position_int: 0
+  vmversion_int: 1
+  control_program_hexstr: 00149335b1cbd4a77b78e33315a0ed10a95b12e7ca48
+  spend_output_id_hexstr: f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17
+'''
+def get_spend_output_id(source_id_hexstr, asset_id_hexstr, amount_int, source_position_int, vmversion_int, control_program_hexstr):
+    amount_hexstr = amount_int.to_bytes(8, byteorder='little').hex()
+    source_position_hexstr = source_position_int.to_bytes(8, byteorder='little').hex()
+    vmversion_hexstr = vmversion_int.to_bytes(8, byteorder='little').hex()
+    cp_length_int = len(control_program_hexstr) // 2
+    cp_length_hexstr = cp_length_int.to_bytes((cp_length_int.bit_length() + 7) // 8, byteorder='little').hex()
+    sc_hexstr = source_id_hexstr + asset_id_hexstr + amount_hexstr + source_position_hexstr + vmversion_hexstr + cp_length_hexstr +  control_program_hexstr
+    innerhash_bytes = sha3_256(bytes.fromhex(sc_hexstr)).digest()
+    spend_bytes = b'entryid:output1:' + innerhash_bytes
+    spend_output_id_hexstr = sha3_256(spend_bytes).hexdigest()
+    return spend_output_id_hexstr
+
+'''
+get_input_id create tx input_id
+test data 1:
+    spend_output_id_hexstr: f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17
+    input_id_hexstr: 6e3f378ed844b143a335e306f4ba26746157589c87e8fc8cba6463c566c56768
+'''
+def get_input_id(spend_output_id_hexstr):
+    innerhash_bytes = sha3_256(bytes.fromhex(spend_output_id_hexstr)).digest()
+    input_id_hexstr = sha3_256(b'entryid:spend1:' + innerhash_bytes).hexdigest()
+    return input_id_hexstr
+
+
+def get_mux_id(prepare_mux_hexstr):
+    innerhash_bytes = sha3_256(bytes.fromhex(prepare_mux_hexstr)).digest()
+    mux_id_hexstr = sha3_256(b'entryid:mux1:' + innerhash_bytes).hexdigest()
+    return mux_id_hexstr
+
+
+def get_output_id(prepare_output_id_hexstr):
+    innerhash_bytes = sha3_256(bytes.fromhex(prepare_output_id_hexstr)).digest()
+    output_id_hexstr = sha3_256(b'entryid:output1:' + innerhash_bytes).hexdigest()
+    return output_id_hexstr
+
+
+def get_tx_id(prepare_tx_id_hexstr):
+    innerhash_bytes = sha3_256(bytes.fromhex(prepare_tx_id_hexstr)).digest()
+    tx_id_hexstr = sha3_256(b'entryid:txheader:' + innerhash_bytes).hexdigest()
+    return tx_id_hexstr
+
+
+def get_issue_input_id(prepare_issue_hexstr):
+    innerhash_bytes = sha3_256(bytes.fromhex(prepare_issue_hexstr)).digest()
+    tx_id_hexstr = sha3_256(b'entryid:issuance1:' + innerhash_bytes).hexdigest()
+    return tx_id_hexstr
+
+
+def get_coinbase_input_id(prepare_coinbase_input_id_hexstr):
+    innerhash_bytes = sha3_256(bytes.fromhex(prepare_coinbase_input_id_hexstr)).digest()
+    coinbase_input_id_hexstr = sha3_256(b'entryid:coinbase1:' + innerhash_bytes).hexdigest()
+    return coinbase_input_id_hexstr
+
+
+'''
+decode_raw_tx decode raw transaction
+testdata 1:
+    raw_tx_str: 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
+    network_str: solonet
+    transaction: 
+{
+  "fee": 20000000,
+  "inputs": [
+    {
+      "address": "sm1qjv6mrj755aah3cenzksw6y9ftvfw0jjgk0l2mw",
+      "amount": 41250000000,
+      "asset_definition": {},
+      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+      "control_program": "00149335b1cbd4a77b78e33315a0ed10a95b12e7ca48",
+      "input_id": "6e3f378ed844b143a335e306f4ba26746157589c87e8fc8cba6463c566c56768",
+      "spent_output_id": "f229ec6f403d586dc87aa2546bbe64c5f7b5f46eb13c6ee4823d03bc88a7cf17",
+      "type": "spend",
+      "witness_arguments": [
+        "897e2d9d24a3b5faaed0579dee7597b401491595675f897504f8945b29d836235bd2fca72a3ad0cae814628973ebcd142d9d6cc92d0b2571b69e5370a98a340c",
+        "8cb7fb3086f58db9a31401b99e8c658be66134fb9034de1d5c462679270b0907"
+      ]
+    }
+  ],
+  "outputs": [
+    {
+      "address": "sm1qqm8yk6ym5qn0l5a8efjar5ze23k5k79qnvtslj",
+      "amount": 40930000000,
+      "asset_definition": {},
+      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+      "control_program": "001406ce4b689ba026ffd3a7ca65d1d059546d4b78a0",
+      "id": "74c73266730d3c6ea32e8667ef9b867068736b84be240fe9fef205fa68bb7b95",
+      "position": 0,
+      "type": "control"
+    },
+    {
+      "address": "sm1q0y57lyve0jp8h6lkp7nq37rkagn4y0z8hvh6kq",
+      "amount": 300000000,
+      "asset_definition": {},
+      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+      "control_program": "00147929ef91997c827bebf60fa608f876ea27523c47",
+      "id": "f115a833d0c302a5006032858a7ed3987f0feb2daf2a9f849384950e4766af51",
+      "position": 1,
+      "type": "control"
+    }
+  ],
+  "size": 333,
+  "time_range": 0,
+  "tx_id": "814a73dd57bae67c604f9cbc696cbc42035577423408cb9267136ed971e2bf63",
+  "version": 1
+}
+'''
+def decode_raw_tx(raw_tx_str, network_str):
+    tx = {
+        "fee": 0,
+        "inputs": [],
+        "outputs": [],
+        "size": 0,
+        "time_range": 0,
+        "tx_id": "",
+        "version": 0
+    }
+    tx['fee'] = 0
+    tx['size'] = len(raw_tx_str) // 2
+    length = 0
+    offset = 2
+    tx['version'], length = get_uvarint(raw_tx_str[offset:offset+18])
+    offset = offset + 2 * length
+    tx['time_range'], length = get_uvarint(raw_tx_str[offset:offset+18])
+    offset = offset + 2 * length
+    tx_input_amount, length = get_uvarint(raw_tx_str[offset:offset+8])
+    offset = offset + 2 * length
+    prepare_mux_hexstr = (tx_input_amount).to_bytes((tx_input_amount.bit_length() + 7) // 8, 'little').hex()
+    prepare_tx_id_hexstr = (tx['version']).to_bytes(8, 'little').hex() + (tx['time_range']).to_bytes(8, 'little').hex()
+    for _ in range(tx_input_amount):
+        _, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        _, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        input_type = int(raw_tx_str[offset:offset+2], 16)
+        offset += 2
+        if input_type == 0: # issue
+            tx_input = {
+                "amount": 0,
+                "asset_definition": "", # TODO:fix it!!
+                "asset_id": "",
+                "input_id": "",
+                "issuance_program": "",
+                "type": "",
+                "witness_arguments": []
+            }
+            tx_input['type'] = "issue"
+            _, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            nonce = raw_tx_str[offset:offset+16]
+            offset += 16
+            nonce_hash_hexstr = sha3_256(bytes.fromhex(nonce)).hexdigest()
+            tx_input['asset_id'] = raw_tx_str[offset:offset+64]
+            offset += 64
+            tx_input['amount'], length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            _, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            asset_definition_size, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            tx_input['asset_definition'] = bytes.fromhex(raw_tx_str[offset:offset+2*asset_definition_size]).decode()
+            offset = offset + 2 * asset_definition_size
+            _, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            issuance_program_length, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            tx_input['issuance_program'] = raw_tx_str[offset:offset+2*issuance_program_length]
+            offset = offset + 2 * issuance_program_length
+            witness_arguments_amount, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            for _ in range(witness_arguments_amount):
+                argument_length, length = get_uvarint(raw_tx_str[offset:offset+18])
+                offset = offset + 2 * length
+                argument = raw_tx_str[offset:offset+2*argument_length]
+                offset = offset + 2 * argument_length
+                tx_input['witness_arguments'].append(argument)
+            prepare_issue_hexstr = nonce_hash_hexstr + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex()
+            tx_input['input_id'] = get_issue_input_id(prepare_issue_hexstr)
+            tx['inputs'].append(tx_input)
+            prepare_mux_hexstr += tx_input['input_id'] + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000'
+            prepare_mux_hexstr += '0100000000000000' + '0151'
+            mux_id_hexstr = get_mux_id(prepare_mux_hexstr)
+        elif input_type == 1: # spend
+            tx_input = {
+                "address": "",
+                "amount": 0,
+                "asset_definition": {},
+                "asset_id": "",
+                "control_program": "",
+                "input_id": "",
+                "spent_output_id": "",
+                "type": "",
+                "witness_arguments": []
+            }
+            tx_input['type'] = "spend"
+            _, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            source_id = raw_tx_str[offset:offset+64]
+            offset += 64
+            tx_input['asset_id'] = raw_tx_str[offset:offset+64]
+            offset += 64
+            tx_input['amount'], length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            tx['fee'] += tx_input['amount']
+            source_positon, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            vmversion, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            control_program_length, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            tx_input['control_program'] = raw_tx_str[offset:offset+2*control_program_length]
+            offset = offset + 2 * control_program_length
+            tx_input['address'] = get_address(tx_input['control_program'], network_str)
+            _, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            witness_arguments_amount, length = get_uvarint(raw_tx_str[offset:offset+18])
+            offset = offset + 2 * length
+            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'])
+            tx_input['input_id'] = get_input_id(tx_input['spent_output_id'])
+            for _ in range(witness_arguments_amount):
+                argument_length, length = get_uvarint(raw_tx_str[offset:offset+18])
+                offset = offset + 2 * length
+                argument = raw_tx_str[offset:offset+2*argument_length]
+                offset = offset + 2 * argument_length
+                tx_input['witness_arguments'].append(argument)
+            tx['inputs'].append(tx_input)
+            prepare_mux_hexstr += tx_input['input_id'] + tx_input['asset_id'] + (tx_input['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000'
+            prepare_mux_hexstr += '0100000000000000' + '0151'
+            mux_id_hexstr = get_mux_id(prepare_mux_hexstr)
+        elif input_type == 2: # coinbase
+            tx_input = {
+                "amount": 0,
+                "arbitrary": "",
+                "asset_definition": {},
+                "asset_id": "0000000000000000000000000000000000000000000000000000000000000000",
+                "input_id": "",
+                "type": "",
+                "witness_arguments": []
+            }
+            tx_input['type'] = "coinbase"
+            arbitrary_length, length = get_uvarint(raw_tx_str[offset:offset+18])
+            prepare_coinbase_input_id_hexstr = raw_tx_str[offset:offset+2*length]
+            offset = offset + 2 * length
+            tx_input['arbitrary'] = raw_tx_str[offset:offset+2*arbitrary_length]
+            prepare_coinbase_input_id_hexstr += tx_input['arbitrary']
+            offset = offset + 2 * arbitrary_length
+            tx_input['input_id'] = get_coinbase_input_id(prepare_coinbase_input_id_hexstr)
+            offset = offset + 2
+            tx['inputs'].append(tx_input)
+            prepare_mux_hexstr += tx_input['input_id'] + 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
+    tx_output_amount, length = get_uvarint(raw_tx_str[offset:offset+18])
+    offset = offset + 2 * length
+    prepare_tx_id_hexstr += (tx_output_amount).to_bytes((tx_output_amount.bit_length() + 7) // 8, 'little').hex()
+    for i in range(tx_output_amount):
+        tx_output = {
+            "address": "",
+            "amount": 0,
+            "asset_definition": {},
+            "asset_id": "",
+            "control_program": "",
+            "id": "",
+            "position": 0,
+            "type": ""
+        }
+        tx_output['position'] = i
+        _, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        _, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        tx_output['asset_id'] = raw_tx_str[offset:offset+64]
+        offset = offset + 64
+        tx_output['amount'], length = get_uvarint(raw_tx_str[offset:offset+18])
+        if tx_input['type'] == "coinbase":
+            prepare_mux_hexstr = prepare_mux_hexstr + (tx_output['amount']).to_bytes(8, byteorder='little').hex() + '0000000000000000' + '0100000000000000' + '0151'
+            mux_id_hexstr = get_mux_id(prepare_mux_hexstr)
+        offset = offset + 2 * length
+        if tx_output['asset_id'] == 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff':
+            tx['fee'] -= tx_output['amount']
+        _, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        control_program_length, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        tx_output['control_program'] = raw_tx_str[offset:offset+2*control_program_length]
+        offset = offset + 2 * control_program_length
+        tx_output['address'] = get_address(tx_output['control_program'], network_str)
+        _, length = get_uvarint(raw_tx_str[offset:offset+18])
+        offset = offset + 2 * length
+        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']
+        tx_output['id'] = get_output_id(prepare_output_id_hexstr)
+        prepare_tx_id_hexstr += tx_output['id']
+        tx_output['type'] = 'control'
+        tx['outputs'].append(tx_output)
+    if tx_input['type'] == "coinbase":
+        tx['fee'] = 0
+    tx['tx_id'] = get_tx_id(prepare_tx_id_hexstr)
+    return tx
diff --git a/setup.py b/setup.py
index bc2ce4e..cdc7a38 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="pybtm",
-    version="0.0.19",
+    version="0.0.20",
     author="zcc0721",
     author_email="zcc0721@foxmail.com",
     description="Python3 implementation of the Bytom protocol.",