228 lines
9.6 KiB
Python
228 lines
9.6 KiB
Python
import logging
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from decimal import Decimal
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from binascii import hexlify
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from datetime import datetime
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from json import JSONEncoder
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from google.protobuf.message import DecodeError
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from lbrynet.schema.claim import Claim
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from lbrynet.wallet.ledger import MainNetLedger, Account
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from lbrynet.wallet.transaction import Transaction, Output
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from lbrynet.wallet.dewies import dewies_to_lbc
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from lbrynet.stream.managed_stream import ManagedStream
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log = logging.getLogger(__name__)
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def encode_txo_doc():
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return {
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'txid': "hash of transaction in hex",
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'nout': "position in the transaction",
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'height': "block where transaction was recorded",
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'amount': "value of the txo as a decimal",
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'address': "address of who can spend the txo",
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'confirmations': "number of confirmed blocks",
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'is_change': "payment to change address, only available when it can be determined",
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'is_mine': "payment to one of your accounts, only available when it can be determined",
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'type': "one of 'claim', 'support' or 'payment'",
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'name': "when type is 'claim' or 'support', this is the claim name",
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'claim_id': "when type is 'claim' or 'support', this is the claim id",
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'claim_op': "when type is 'claim', this determines if it is 'create' or 'update'",
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'value': "when type is 'claim' or 'support' with payload, this is the decoded protobuf payload",
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'value_type': "determines the type of the 'value' field: 'channel', 'stream', etc",
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'protobuf': "hex encoded raw protobuf version of 'value' field",
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'permanent_url': "when type is 'claim' or 'support', this is the long permanent claim URL",
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'signing_channel': "for signed claims only, metadata of signing channel",
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'is_channel_signature_valid': "for signed claims only, whether signature is valid",
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}
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def encode_tx_doc():
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return {
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'txid': "hash of transaction in hex",
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'height': "block where transaction was recorded",
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'inputs': [encode_txo_doc()],
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'outputs': [encode_txo_doc()],
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'total_input': "sum of inputs as a decimal",
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'total_output': "sum of outputs, sans fee, as a decimal",
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'total_fee': "fee amount",
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'hex': "entire transaction encoded in hex",
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}
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def encode_account_doc():
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return {
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'id': 'account_id',
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'is_default': 'this account is used by default',
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'ledger': 'name of crypto currency and network',
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'name': 'optional account name',
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'seed': 'human friendly words from which account can be recreated',
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'encrypted': 'if account is encrypted',
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'private_key': 'extended private key',
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'public_key': 'extended public key',
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'address_generator': 'settings for generating addresses',
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'modified_on': 'date of last modification to account settings'
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}
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def encode_file_doc():
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return {
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'streaming_url': '(str) url to stream the file using range requests',
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'completed': '(bool) true if download is completed',
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'file_name': '(str) name of file',
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'download_directory': '(str) download directory',
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'points_paid': '(float) credit paid to download file',
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'stopped': '(bool) true if download is stopped',
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'stream_hash': '(str) stream hash of file',
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'stream_name': '(str) stream name',
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'suggested_file_name': '(str) suggested file name',
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'sd_hash': '(str) sd hash of file',
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'download_path': '(str) download path of file',
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'mime_type': '(str) mime type of file',
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'key': '(str) key attached to file',
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'total_bytes_lower_bound': '(int) lower bound file size in bytes',
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'total_bytes': '(int) file upper bound size in bytes',
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'written_bytes': '(int) written size in bytes',
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'blobs_completed': '(int) number of fully downloaded blobs',
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'blobs_in_stream': '(int) total blobs on stream',
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'blobs_remaining': '(int) total blobs remaining to download',
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'status': '(str) downloader status',
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'claim_id': '(str) None if claim is not found else the claim id',
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'txid': '(str) None if claim is not found else the transaction id',
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'nout': '(int) None if claim is not found else the transaction output index',
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'outpoint': '(str) None if claim is not found else the tx and output',
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'metadata': '(dict) None if claim is not found else the claim metadata',
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'channel_claim_id': '(str) None if claim is not found or not signed',
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'channel_name': '(str) None if claim is not found or not signed',
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'claim_name': '(str) None if claim is not found else the claim name'
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}
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class JSONResponseEncoder(JSONEncoder):
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def __init__(self, *args, ledger: MainNetLedger, include_protobuf=False, **kwargs):
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super().__init__(*args, **kwargs)
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self.ledger = ledger
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self.include_protobuf = include_protobuf
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def default(self, obj): # pylint: disable=method-hidden
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if isinstance(obj, Account):
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return self.encode_account(obj)
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if isinstance(obj, ManagedStream):
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return self.encode_file(obj)
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if isinstance(obj, Transaction):
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return self.encode_transaction(obj)
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if isinstance(obj, Output):
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return self.encode_output(obj)
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if isinstance(obj, Claim):
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return self.encode_claim(obj)
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if isinstance(obj, datetime):
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return obj.strftime("%Y%m%dT%H:%M:%S")
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if isinstance(obj, Decimal):
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return float(obj)
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if isinstance(obj, bytes):
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return obj.decode()
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return super().default(obj)
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def encode_transaction(self, tx):
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return {
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'txid': tx.id,
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'height': tx.height,
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'inputs': [self.encode_input(txo) for txo in tx.inputs],
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'outputs': [self.encode_output(txo) for txo in tx.outputs],
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'total_input': dewies_to_lbc(tx.input_sum),
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'total_output': dewies_to_lbc(tx.input_sum - tx.fee),
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'total_fee': dewies_to_lbc(tx.fee),
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'hex': hexlify(tx.raw).decode(),
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}
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def encode_output(self, txo, check_signature=True, include_meta=True):
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tx_height = txo.tx_ref.height
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best_height = self.ledger.headers.height
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output = {
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'txid': txo.tx_ref.id,
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'nout': txo.position,
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'height': tx_height,
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'amount': dewies_to_lbc(txo.amount),
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'address': txo.get_address(self.ledger),
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'confirmations': (best_height+1) - tx_height if tx_height > 0 else tx_height,
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'timestamp': self.ledger.headers[tx_height]['timestamp'] if tx_height > 0 else None
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}
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if txo.is_change is not None:
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output['is_change'] = txo.is_change
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if txo.is_my_account is not None:
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output['is_mine'] = txo.is_my_account
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if txo.script.is_claim_name:
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output['type'] = 'claim'
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output['claim_op'] = 'create'
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elif txo.script.is_update_claim:
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output['type'] = 'claim'
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output['claim_op'] = 'update'
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elif txo.script.is_support_claim:
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output['type'] = 'support'
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else:
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output['type'] = 'payment'
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if txo.script.is_claim_involved:
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output.update({
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'name': txo.claim_name,
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'normalized': txo.normalized_name,
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'claim_id': txo.claim_id,
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'permanent_url': txo.permanent_url
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})
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if include_meta:
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output['meta'] = self.encode_claim_meta(txo.meta)
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if txo.script.is_claim_name or txo.script.is_update_claim:
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try:
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output['value'] = txo.claim
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output['value_type'] = txo.claim.claim_type
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if self.include_protobuf:
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output['protobuf'] = hexlify(txo.claim.to_bytes())
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if txo.channel is not None:
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output['signing_channel'] = self.encode_output(txo.channel, include_meta=False)
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if check_signature and txo.claim.is_signed:
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output['is_channel_signature_valid'] = False
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if txo.channel:
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output['is_channel_signature_valid'] = txo.is_signed_by(txo.channel, self.ledger)
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except DecodeError:
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pass
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return output
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def encode_claim_meta(self, meta):
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for key, value in meta.items():
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if key.endswith('_amount') or key.startswith('trending_'):
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if isinstance(value, int):
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meta[key] = dewies_to_lbc(value)
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return meta
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def encode_input(self, txi):
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return self.encode_output(txi.txo_ref.txo, False) if txi.txo_ref.txo is not None else {
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'txid': txi.txo_ref.tx_ref.id,
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'nout': txi.txo_ref.position
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}
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def encode_account(self, account):
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result = account.to_dict()
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result['id'] = account.id
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result.pop('certificates', None)
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result['is_default'] = self.ledger.accounts[0] == account
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return result
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def encode_file(self, managed_stream):
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file = managed_stream.as_dict()
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tx_height = managed_stream.stream_claim_info.height
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best_height = self.ledger.headers.height
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file.update({
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'height': tx_height,
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'confirmations': (best_height+1) - tx_height if tx_height > 0 else tx_height,
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'timestamp': self.ledger.headers[tx_height]['timestamp'] if tx_height > 0 else None
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})
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return file
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@staticmethod
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def encode_claim(claim):
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return getattr(claim, claim.claim_type).to_dict()
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