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#!/usr/bin/env python3
# Copyright (c) 2014-2019 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test the REST API."""
from decimal import Decimal
from enum import Enum
from io import BytesIO
import json
from struct import pack, unpack
import http.client
import urllib.parse
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_greater_than,
assert_greater_than_or_equal,
)
from test_framework.messages import BLOCK_HEADER_SIZE
class ReqType(Enum):
JSON = 1
BIN = 2
HEX = 3
class RetType(Enum):
OBJ = 1
BYTES = 2
JSON = 3
def filter_output_indices_by_value(vouts, value):
for vout in vouts:
if vout['value'] == value:
yield vout['n']
class RESTTest (BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 2
self.extra_args = [["-rest", "-blockfilterindex=1"], []]
self.supports_cli = False
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def test_rest_request(self, uri, http_method='GET', req_type=ReqType.JSON, body='', status=200, ret_type=RetType.JSON):
rest_uri = '/rest' + uri
if req_type == ReqType.JSON:
rest_uri += '.json'
elif req_type == ReqType.BIN:
rest_uri += '.bin'
elif req_type == ReqType.HEX:
rest_uri += '.hex'
conn = http.client.HTTPConnection(self.url.hostname, self.url.port)
self.log.debug(f'{http_method} {rest_uri} {body}')
if http_method == 'GET':
conn.request('GET', rest_uri)
elif http_method == 'POST':
conn.request('POST', rest_uri, body)
resp = conn.getresponse()
assert_equal(resp.status, status)
if ret_type == RetType.OBJ:
return resp
elif ret_type == RetType.BYTES:
return resp.read()
elif ret_type == RetType.JSON:
return json.loads(resp.read().decode('utf-8'), parse_float=Decimal)
def run_test(self):
self.url = urllib.parse.urlparse(self.nodes[0].url)
self.log.info("Mine blocks and send Bitcoin to node 1")
# Random address so node1's balance doesn't increase
not_related_address = "2MxqoHEdNQTyYeX1mHcbrrpzgojbosTpCvJ"
self.generate(self.nodes[0], 1)
self.sync_all()
self.generatetoaddress(self.nodes[1], 100, not_related_address)
self.sync_all()
assert_equal(self.nodes[0].getbalance(), 50)
txid = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1)
self.sync_all()
self.log.info("Test the /tx URI")
json_obj = self.test_rest_request(f"/tx/{txid}")
assert_equal(json_obj['txid'], txid)
# Check hex format response
hex_response = self.test_rest_request(f"/tx/{txid}", req_type=ReqType.HEX, ret_type=RetType.OBJ)
assert_greater_than_or_equal(int(hex_response.getheader('content-length')),
json_obj['size']*2)
spent = (json_obj['vin'][0]['txid'], json_obj['vin'][0]['vout']) # get the vin to later check for utxo (should be spent by then)
# get n of 0.1 outpoint
n, = filter_output_indices_by_value(json_obj['vout'], Decimal('0.1'))
spending = (txid, n)
self.log.info("Query an unspent TXO using the /getutxos URI")
self.generatetoaddress(self.nodes[1], 1, not_related_address)
self.sync_all()
bb_hash = self.nodes[0].getbestblockhash()
assert_equal(self.nodes[1].getbalance(), Decimal("0.1"))
# Check chainTip response
json_obj = self.test_rest_request(f"/getutxos/{spending[0]}-{spending[1]}")
assert_equal(json_obj['chaintipHash'], bb_hash)
# Make sure there is one utxo
assert_equal(len(json_obj['utxos']), 1)
assert_equal(json_obj['utxos'][0]['value'], Decimal('0.1'))
self.log.info("Query a spent TXO using the /getutxos URI")
json_obj = self.test_rest_request(f"/getutxos/{spent[0]}-{spent[1]}")
# Check chainTip response
assert_equal(json_obj['chaintipHash'], bb_hash)
# Make sure there is no utxo in the response because this outpoint has been spent
assert_equal(len(json_obj['utxos']), 0)
# Check bitmap
assert_equal(json_obj['bitmap'], "0")
self.log.info("Query two TXOs using the /getutxos URI")
json_obj = self.test_rest_request(f"/getutxos/{spending[0]}-{spending[1]}/{spent[0]}-{spent[1]}")
assert_equal(len(json_obj['utxos']), 1)
assert_equal(json_obj['bitmap'], "10")
self.log.info("Query the TXOs using the /getutxos URI with a binary response")
bin_request = b'\x01\x02'
for txid, n in [spending, spent]:
bin_request += bytes.fromhex(txid)
bin_request += pack("i", n)
bin_response = self.test_rest_request("/getutxos", http_method='POST', req_type=ReqType.BIN, body=bin_request, ret_type=RetType.BYTES)
output = BytesIO(bin_response)
chain_height, = unpack("<i", output.read(4))
response_hash = output.read(32)[::-1].hex()
assert_equal(bb_hash, response_hash) # check if getutxo's chaintip during calculation was fine
assert_equal(chain_height, 102) # chain height must be 102
self.log.info("Test the /getutxos URI with and without /checkmempool")
# Create a transaction, check that it's found with /checkmempool, but
# not found without. Then confirm the transaction and check that it's
# found with or without /checkmempool.
# do a tx and don't sync
txid = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.1)
json_obj = self.test_rest_request(f"/tx/{txid}")
# get the spent output to later check for utxo (should be spent by then)
spent = (json_obj['vin'][0]['txid'], json_obj['vin'][0]['vout'])
# get n of 0.1 outpoint
n, = filter_output_indices_by_value(json_obj['vout'], Decimal('0.1'))
spending = (txid, n)
json_obj = self.test_rest_request(f"/getutxos/{spending[0]}-{spending[1]}")
assert_equal(len(json_obj['utxos']), 0)
json_obj = self.test_rest_request(f"/getutxos/checkmempool/{spending[0]}-{spending[1]}")
assert_equal(len(json_obj['utxos']), 1)
json_obj = self.test_rest_request(f"/getutxos/{spent[0]}-{spent[1]}")
assert_equal(len(json_obj['utxos']), 1)
json_obj = self.test_rest_request(f"/getutxos/checkmempool/{spent[0]}-{spent[1]}")
assert_equal(len(json_obj['utxos']), 0)
self.generate(self.nodes[0], 1)
self.sync_all()
json_obj = self.test_rest_request(f"/getutxos/{spending[0]}-{spending[1]}")
assert_equal(len(json_obj['utxos']), 1)
json_obj = self.test_rest_request(f"/getutxos/checkmempool/{spending[0]}-{spending[1]}")
assert_equal(len(json_obj['utxos']), 1)
# Do some invalid requests
self.test_rest_request("/getutxos", http_method='POST', req_type=ReqType.JSON, body='{"checkmempool', status=400, ret_type=RetType.OBJ)
self.test_rest_request("/getutxos", http_method='POST', req_type=ReqType.BIN, body='{"checkmempool', status=400, ret_type=RetType.OBJ)
self.test_rest_request("/getutxos/checkmempool", http_method='POST', req_type=ReqType.JSON, status=400, ret_type=RetType.OBJ)
# Test limits
long_uri = '/'.join([f"{txid}-{n_}" for n_ in range(20)])
self.test_rest_request(f"/getutxos/checkmempool/{long_uri}", http_method='POST', status=400, ret_type=RetType.OBJ)
long_uri = '/'.join([f'{txid}-{n_}' for n_ in range(15)])
self.test_rest_request(f"/getutxos/checkmempool/{long_uri}", http_method='POST', status=200)
self.generate(self.nodes[0], 1) # generate block to not affect upcoming tests
self.sync_all()
self.log.info("Test the /block, /blockhashbyheight and /headers URIs")
bb_hash = self.nodes[0].getbestblockhash()
# Check result if block does not exists
assert_equal(self.test_rest_request('/headers/1/0000000000000000000000000000000000000000000000000000000000000000'), [])
self.test_rest_request('/block/0000000000000000000000000000000000000000000000000000000000000000', status=404, ret_type=RetType.OBJ)
# Check result if block is not in the active chain
self.nodes[0].invalidateblock(bb_hash)
assert_equal(self.test_rest_request(f'/headers/1/{bb_hash}'), [])
self.test_rest_request(f'/block/{bb_hash}')
self.nodes[0].reconsiderblock(bb_hash)
# Check binary format
response = self.test_rest_request(f"/block/{bb_hash}", req_type=ReqType.BIN, ret_type=RetType.OBJ)
assert_greater_than(int(response.getheader('content-length')), BLOCK_HEADER_SIZE)
response_bytes = response.read()
# Compare with block header
response_header = self.test_rest_request(f"/headers/1/{bb_hash}", req_type=ReqType.BIN, ret_type=RetType.OBJ)
assert_equal(int(response_header.getheader('content-length')), BLOCK_HEADER_SIZE)
response_header_bytes = response_header.read()
assert_equal(response_bytes[:BLOCK_HEADER_SIZE], response_header_bytes)
# Check block hex format
response_hex = self.test_rest_request(f"/block/{bb_hash}", req_type=ReqType.HEX, ret_type=RetType.OBJ)
assert_greater_than(int(response_hex.getheader('content-length')), BLOCK_HEADER_SIZE*2)
response_hex_bytes = response_hex.read().strip(b'\n')
assert_equal(response_bytes.hex().encode(), response_hex_bytes)
# Compare with hex block header
response_header_hex = self.test_rest_request(f"/headers/1/{bb_hash}", req_type=ReqType.HEX, ret_type=RetType.OBJ)
assert_greater_than(int(response_header_hex.getheader('content-length')), BLOCK_HEADER_SIZE*2)
response_header_hex_bytes = response_header_hex.read(BLOCK_HEADER_SIZE*2)
assert_equal(response_bytes[:BLOCK_HEADER_SIZE].hex().encode(), response_header_hex_bytes)
# Check json format
block_json_obj = self.test_rest_request(f"/block/{bb_hash}")
assert_equal(block_json_obj['hash'], bb_hash)
assert_equal(self.test_rest_request(f"/blockhashbyheight/{block_json_obj['height']}")['blockhash'], bb_hash)
# Check hex/bin format
resp_hex = self.test_rest_request(f"/blockhashbyheight/{block_json_obj['height']}", req_type=ReqType.HEX, ret_type=RetType.OBJ)
assert_equal(resp_hex.read().decode('utf-8').rstrip(), bb_hash)
resp_bytes = self.test_rest_request(f"/blockhashbyheight/{block_json_obj['height']}", req_type=ReqType.BIN, ret_type=RetType.BYTES)
blockhash = resp_bytes[::-1].hex()
assert_equal(blockhash, bb_hash)
# Check invalid blockhashbyheight requests
resp = self.test_rest_request("/blockhashbyheight/abc", ret_type=RetType.OBJ, status=400)
assert_equal(resp.read().decode('utf-8').rstrip(), "Invalid height: abc")
resp = self.test_rest_request("/blockhashbyheight/1000000", ret_type=RetType.OBJ, status=404)
assert_equal(resp.read().decode('utf-8').rstrip(), "Block height out of range")
resp = self.test_rest_request("/blockhashbyheight/-1", ret_type=RetType.OBJ, status=400)
assert_equal(resp.read().decode('utf-8').rstrip(), "Invalid height: -1")
self.test_rest_request("/blockhashbyheight/", ret_type=RetType.OBJ, status=400)
# Compare with json block header
json_obj = self.test_rest_request(f"/headers/1/{bb_hash}")
assert_equal(len(json_obj), 1) # ensure that there is one header in the json response
assert_equal(json_obj[0]['hash'], bb_hash) # request/response hash should be the same
# Compare with normal RPC block response
rpc_block_json = self.nodes[0].getblock(bb_hash)
for key in ['hash', 'confirmations', 'height', 'version', 'merkleroot', 'time', 'nonce', 'bits', 'difficulty', 'chainwork', 'previousblockhash']:
assert_equal(json_obj[0][key], rpc_block_json[key])
# See if we can get 5 headers in one response
self.generate(self.nodes[1], 5)
self.sync_all()
json_obj = self.test_rest_request(f"/headers/5/{bb_hash}")
assert_equal(len(json_obj), 5) # now we should have 5 header objects
json_obj = self.test_rest_request(f"/blockfilterheaders/basic/5/{bb_hash}")
assert_equal(len(json_obj), 5) # now we should have 5 filter header objects
self.test_rest_request(f"/blockfilter/basic/{bb_hash}", req_type=ReqType.BIN, ret_type=RetType.OBJ)
# Test number parsing
for num in ['5a', '-5', '0', '2001', '99999999999999999999999999999999999']:
assert_equal(
bytes(f'Header count out of acceptable range (1-2000): {num}\r\n', 'ascii'),
self.test_rest_request(f"/headers/{num}/{bb_hash}", ret_type=RetType.BYTES, status=400),
)
self.log.info("Test tx inclusion in the /mempool and /block URIs")
# Make 3 tx and mine them on node 1
txs = []
txs.append(self.nodes[0].sendtoaddress(not_related_address, 11))
txs.append(self.nodes[0].sendtoaddress(not_related_address, 11))
txs.append(self.nodes[0].sendtoaddress(not_related_address, 11))
self.sync_all()
# Check that there are exactly 3 transactions in the TX memory pool before generating the block
json_obj = self.test_rest_request("/mempool/info")
assert_equal(json_obj['size'], 3)
# the size of the memory pool should be greater than 3x ~100 bytes
assert_greater_than(json_obj['bytes'], 300)
# Check that there are our submitted transactions in the TX memory pool
json_obj = self.test_rest_request("/mempool/contents")
for i, tx in enumerate(txs):
assert tx in json_obj
assert_equal(json_obj[tx]['spentby'], txs[i + 1:i + 2])
assert_equal(json_obj[tx]['depends'], txs[i - 1:i])
# Now mine the transactions
newblockhash = self.generate(self.nodes[1], 1)
self.sync_all()
# Check if the 3 tx show up in the new block
json_obj = self.test_rest_request(f"/block/{newblockhash[0]}")
non_coinbase_txs = {tx['txid'] for tx in json_obj['tx']
if 'coinbase' not in tx['vin'][0]}
assert_equal(non_coinbase_txs, set(txs))
# Check the same but without tx details
json_obj = self.test_rest_request(f"/block/notxdetails/{newblockhash[0]}")
for tx in txs:
assert tx in json_obj['tx']
self.log.info("Test the /chaininfo URI")
bb_hash = self.nodes[0].getbestblockhash()
json_obj = self.test_rest_request("/chaininfo")
assert_equal(json_obj['bestblockhash'], bb_hash)
if __name__ == '__main__':
RESTTest().main()
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