forked from LBRYCommunity/lbry-sdk
425 lines
19 KiB
Python
425 lines
19 KiB
Python
import asyncio
|
|
import struct
|
|
from binascii import hexlify, unhexlify
|
|
from decimal import Decimal
|
|
from operator import itemgetter
|
|
from typing import Optional, List, Iterable
|
|
|
|
from elasticsearch import AsyncElasticsearch, NotFoundError
|
|
from elasticsearch.helpers import async_bulk
|
|
|
|
from lbry.crypto.base58 import Base58
|
|
from lbry.error import ResolveCensoredError
|
|
from lbry.schema.result import Outputs, Censor
|
|
from lbry.schema.tags import clean_tags
|
|
from lbry.schema.url import URL, normalize_name
|
|
from lbry.wallet.server.db.common import CLAIM_TYPES, STREAM_TYPES
|
|
|
|
|
|
class SearchIndex:
|
|
def __init__(self, index_prefix: str):
|
|
self.client: Optional[AsyncElasticsearch] = None
|
|
self.index = index_prefix + 'claims'
|
|
self.sync_timeout = 600 # wont hit that 99% of the time, but can hit on a fresh import
|
|
|
|
async def start(self):
|
|
self.client = AsyncElasticsearch(timeout=self.sync_timeout)
|
|
try:
|
|
if await self.client.indices.exists(self.index):
|
|
return
|
|
await self.client.indices.create(
|
|
self.index,
|
|
{
|
|
"settings":
|
|
{"analysis":
|
|
{"analyzer": {
|
|
"default": {"tokenizer": "whitespace", "filter": ["lowercase", "porter_stem"]}}},
|
|
"index":
|
|
{"refresh_interval": -1,
|
|
"number_of_shards": 1}
|
|
},
|
|
"mappings": {
|
|
"properties": {
|
|
"claim_id": {
|
|
"type": "text",
|
|
"index_prefixes": {
|
|
"min_chars": 1,
|
|
"max_chars": 10
|
|
}
|
|
},
|
|
"height": {"type": "integer"},
|
|
"claim_type": {"type": "byte"},
|
|
}
|
|
}
|
|
}
|
|
)
|
|
except Exception as e:
|
|
raise
|
|
|
|
def stop(self):
|
|
client = self.client
|
|
self.client = None
|
|
return asyncio.ensure_future(client.close())
|
|
|
|
def delete_index(self):
|
|
return self.client.indices.delete(self.index)
|
|
|
|
async def sync_queue(self, claim_queue):
|
|
if claim_queue.empty():
|
|
return
|
|
to_delete, to_update = [], []
|
|
while not claim_queue.empty():
|
|
operation, doc = claim_queue.get_nowait()
|
|
if operation == 'delete':
|
|
to_delete.append(doc)
|
|
else:
|
|
to_update.append(doc)
|
|
await self.delete(to_delete)
|
|
await self.client.indices.refresh(self.index)
|
|
for bulk in range(0, len(to_update), 400):
|
|
await self.update(to_update[bulk:bulk+400])
|
|
await self.client.indices.refresh(self.index)
|
|
|
|
async def apply_filters(self, blocked_streams, blocked_channels, filtered_streams, filtered_channels):
|
|
def make_query(censor_type, blockdict, channels=False):
|
|
blockdict = dict(
|
|
(hexlify(key[::-1]).decode(), hexlify(value[::-1]).decode()) for key, value in blockdict.items())
|
|
if channels:
|
|
update = expand_query(channel_id__in=list(blockdict.keys()), censor_type=f"<{censor_type}")
|
|
else:
|
|
update = expand_query(claim_id__in=list(blockdict.keys()), censor_type=f"<{censor_type}")
|
|
key = 'channel_id' if channels else 'claim_id'
|
|
update['script'] = {
|
|
"source": f"ctx._source.censor_type={censor_type}; ctx._source.censoring_channel_hash=params[ctx._source.{key}]",
|
|
"lang": "painless",
|
|
"params": blockdict
|
|
}
|
|
return update
|
|
if filtered_streams:
|
|
await self.client.update_by_query(self.index, body=make_query(1, filtered_streams), slices=32)
|
|
await self.client.indices.refresh(self.index)
|
|
if filtered_channels:
|
|
await self.client.update_by_query(self.index, body=make_query(1, filtered_channels, True), slices=32)
|
|
await self.client.indices.refresh(self.index)
|
|
if blocked_streams:
|
|
await self.client.update_by_query(self.index, body=make_query(2, blocked_streams), slices=32)
|
|
await self.client.indices.refresh(self.index)
|
|
if blocked_channels:
|
|
await self.client.update_by_query(self.index, body=make_query(2, blocked_channels, True), slices=32)
|
|
await self.client.indices.refresh(self.index)
|
|
|
|
async def update(self, claims):
|
|
if not claims:
|
|
return
|
|
actions = [extract_doc(claim, self.index) for claim in claims]
|
|
names = []
|
|
claim_ids = []
|
|
for claim in claims:
|
|
if claim['is_controlling']:
|
|
names.append(claim['normalized'])
|
|
claim_ids.append(claim['claim_id'])
|
|
if names:
|
|
update = expand_query(name__in=names, not_claim_id=claim_ids, is_controlling=True)
|
|
update['script'] = {
|
|
"source": "ctx._source.is_controlling=false",
|
|
"lang": "painless"
|
|
}
|
|
await self.client.update_by_query(self.index, body=update)
|
|
await self.client.indices.refresh(self.index)
|
|
await async_bulk(self.client, actions)
|
|
|
|
async def delete(self, claim_ids):
|
|
if not claim_ids:
|
|
return
|
|
actions = [{'_index': self.index, '_op_type': 'delete', '_id': claim_id} for claim_id in claim_ids]
|
|
await async_bulk(self.client, actions, raise_on_error=False)
|
|
update = expand_query(channel_id__in=claim_ids)
|
|
update['script'] = {
|
|
"source": "ctx._source.signature_valid=false",
|
|
"lang": "painless"
|
|
}
|
|
await self.client.indices.refresh(self.index)
|
|
await self.client.update_by_query(self.index, body=update)
|
|
|
|
async def session_query(self, query_name, function, kwargs):
|
|
offset, total = kwargs.get('offset', 0) if isinstance(kwargs, dict) else 0, 0
|
|
total_referenced = []
|
|
if query_name == 'resolve':
|
|
total_referenced, response, censor = await self.resolve(*kwargs)
|
|
else:
|
|
censor = Censor(Censor.SEARCH)
|
|
censored_response = asyncio.ensure_future(self.search(**kwargs, censor_type='>0'))
|
|
response, offset, total = await self.search(**kwargs, censor_type=0)
|
|
total_referenced.extend(response)
|
|
censored_response, _, _ = await censored_response
|
|
censor.apply(censored_response)
|
|
total_referenced.extend(censored_response)
|
|
return Outputs.to_base64(response, await self._get_referenced_rows(total_referenced), offset, total, censor)
|
|
|
|
async def resolve(self, *urls):
|
|
censor = Censor(Censor.RESOLVE)
|
|
results = await asyncio.gather(*(self.resolve_url(url) for url in urls))
|
|
censored = [
|
|
result if not isinstance(result, dict) or not censor.censor(result)
|
|
else ResolveCensoredError(url, result['censoring_channel_hash'])
|
|
for url, result in zip(urls, results)
|
|
]
|
|
return results, censored, censor
|
|
|
|
async def search(self, **kwargs):
|
|
if 'channel' in kwargs:
|
|
result = await self.resolve_url(kwargs.pop('channel'))
|
|
if not result or not isinstance(result, Iterable):
|
|
return [], 0, 0
|
|
kwargs['channel_id'] = result['_id']
|
|
try:
|
|
result = await self.client.search(expand_query(**kwargs), index=self.index)
|
|
except NotFoundError:
|
|
# index has no docs, fixme: log something
|
|
return [], 0, 0
|
|
return expand_result(result['hits']['hits']), 0, result['hits']['total']['value']
|
|
|
|
async def resolve_url(self, raw_url):
|
|
try:
|
|
url = URL.parse(raw_url)
|
|
except ValueError as e:
|
|
return e
|
|
|
|
channel = None
|
|
|
|
if url.has_channel:
|
|
query = url.channel.to_dict()
|
|
if set(query) == {'name'}:
|
|
query['is_controlling'] = True
|
|
else:
|
|
query['order_by'] = ['^creation_height']
|
|
matches, _, _ = await self.search(**query, limit=1)
|
|
if matches:
|
|
channel = matches[0]
|
|
else:
|
|
return LookupError(f'Could not find channel in "{raw_url}".')
|
|
|
|
if url.has_stream:
|
|
query = url.stream.to_dict()
|
|
if channel is not None:
|
|
if set(query) == {'name'}:
|
|
# temporarily emulate is_controlling for claims in channel
|
|
query['order_by'] = ['effective_amount', '^height']
|
|
else:
|
|
query['order_by'] = ['^channel_join']
|
|
query['channel_id'] = channel['claim_id']
|
|
query['signature_valid'] = True
|
|
elif set(query) == {'name'}:
|
|
query['is_controlling'] = True
|
|
matches, _, _ = await self.search(**query, limit=1)
|
|
if matches:
|
|
return matches[0]
|
|
else:
|
|
return LookupError(f'Could not find claim at "{raw_url}".')
|
|
|
|
return channel
|
|
|
|
async def _get_referenced_rows(self, txo_rows: List[dict]):
|
|
txo_rows = [row for row in txo_rows if isinstance(row, dict)]
|
|
repost_hashes = set(filter(None, map(itemgetter('reposted_claim_hash'), txo_rows)))
|
|
channel_hashes = set(filter(None, (row['channel_hash'] for row in txo_rows)))
|
|
channel_hashes |= set(filter(None, (row['censoring_channel_hash'] for row in txo_rows)))
|
|
|
|
reposted_txos = []
|
|
if repost_hashes:
|
|
reposted_txos, _, _ = await self.search(**{'claim.claim_hash__in': repost_hashes})
|
|
channel_hashes |= set(filter(None, (row['channel_hash'] for row in reposted_txos)))
|
|
|
|
channel_txos = []
|
|
if channel_hashes:
|
|
channel_txos, _, _ = await self.search(**{'claim.claim_hash__in': channel_hashes})
|
|
|
|
# channels must come first for client side inflation to work properly
|
|
return channel_txos + reposted_txos
|
|
|
|
|
|
def extract_doc(doc, index):
|
|
doc['claim_id'] = hexlify(doc.pop('claim_hash')[::-1]).decode()
|
|
if doc['reposted_claim_hash'] is not None:
|
|
doc['reposted_claim_id'] = hexlify(doc.pop('reposted_claim_hash')[::-1]).decode()
|
|
else:
|
|
doc['reposted_claim_id'] = None
|
|
channel_hash = doc.pop('channel_hash')
|
|
doc['channel_id'] = hexlify(channel_hash[::-1]).decode() if channel_hash else channel_hash
|
|
channel_hash = doc.pop('censoring_channel_hash')
|
|
doc['censoring_channel_hash'] = hexlify(channel_hash[::-1]).decode() if channel_hash else channel_hash
|
|
txo_hash = doc.pop('txo_hash')
|
|
doc['tx_id'] = hexlify(txo_hash[:32][::-1]).decode()
|
|
doc['tx_nout'] = struct.unpack('<I', txo_hash[32:])[0]
|
|
doc['is_controlling'] = bool(doc['is_controlling'])
|
|
doc['signature'] = hexlify(doc.pop('signature') or b'').decode() or None
|
|
doc['signature_digest'] = hexlify(doc.pop('signature_digest') or b'').decode() or None
|
|
doc['public_key_bytes'] = hexlify(doc.pop('public_key_bytes') or b'').decode() or None
|
|
doc['public_key_hash'] = hexlify(doc.pop('public_key_hash') or b'').decode() or None
|
|
doc['signature_valid'] = bool(doc['signature_valid'])
|
|
doc['claim_type'] = doc.get('claim_type', 0) or 0
|
|
doc['stream_type'] = int(doc.get('stream_type', 0) or 0)
|
|
return {'doc': doc, '_id': doc['claim_id'], '_index': index, '_op_type': 'update',
|
|
'doc_as_upsert': True}
|
|
|
|
|
|
FIELDS = ['is_controlling', 'last_take_over_height', 'claim_id', 'claim_name', 'normalized', 'tx_position', 'amount',
|
|
'timestamp', 'creation_timestamp', 'height', 'creation_height', 'activation_height', 'expiration_height',
|
|
'release_time', 'short_url', 'canonical_url', 'title', 'author', 'description', 'claim_type', 'reposted',
|
|
'stream_type', 'media_type', 'fee_amount', 'fee_currency', 'duration', 'reposted_claim_hash', 'censor_type',
|
|
'claims_in_channel', 'channel_join', 'signature_valid', 'effective_amount', 'support_amount',
|
|
'trending_group', 'trending_mixed', 'trending_local', 'trending_global', 'channel_id', 'tx_id', 'tx_nout',
|
|
'signature', 'signature_digest', 'public_key_bytes', 'public_key_hash', 'public_key_id', '_id', 'tags',
|
|
'reposted_claim_id']
|
|
TEXT_FIELDS = ['author', 'canonical_url', 'channel_id', 'claim_name', 'description',
|
|
'media_type', 'normalized', 'public_key_bytes', 'public_key_hash', 'short_url', 'signature',
|
|
'signature_digest', 'stream_type', 'title', 'tx_id', 'fee_currency', 'reposted_claim_id', 'tags']
|
|
RANGE_FIELDS = ['height', 'fee_amount', 'duration', 'reposted', 'release_time', 'censor_type']
|
|
REPLACEMENTS = {
|
|
'name': 'normalized',
|
|
'txid': 'tx_id',
|
|
'claim_hash': '_id'
|
|
}
|
|
|
|
|
|
def expand_query(**kwargs):
|
|
if 'name' in kwargs:
|
|
kwargs['name'] = normalize_name(kwargs.pop('name'))
|
|
query = {'must': [], 'must_not': []}
|
|
collapse = None
|
|
for key, value in kwargs.items():
|
|
if value is None or isinstance(value, list) and len(value) == 0:
|
|
continue
|
|
key = key.replace('claim.', '')
|
|
many = key.endswith('__in') or isinstance(value, list)
|
|
if many:
|
|
key = key.replace('__in', '')
|
|
key = REPLACEMENTS.get(key, key)
|
|
if key in FIELDS:
|
|
partial_id = False
|
|
if key == 'claim_type':
|
|
if isinstance(value, str):
|
|
value = CLAIM_TYPES[value]
|
|
else:
|
|
value = [CLAIM_TYPES[claim_type] for claim_type in value]
|
|
if key == '_id':
|
|
if isinstance(value, Iterable):
|
|
value = [hexlify(item[::-1]).decode() for item in value]
|
|
else:
|
|
value = hexlify(value[::-1]).decode()
|
|
if not many and key in ('_id', 'claim_id') and len(value) < 20:
|
|
partial_id = True
|
|
if key == 'public_key_id':
|
|
key = 'public_key_hash'
|
|
value = hexlify(Base58.decode(value)[1:21]).decode()
|
|
if key == 'signature_valid':
|
|
continue # handled later
|
|
if key in TEXT_FIELDS:
|
|
key += '.keyword'
|
|
ops = {'<=': 'lte', '>=': 'gte', '<': 'lt', '>': 'gt'}
|
|
if partial_id:
|
|
query['must'].append({"prefix": {"claim_id": value}})
|
|
elif key in RANGE_FIELDS and isinstance(value, str) and value[0] in ops:
|
|
operator_length = 2 if value[:2] in ops else 1
|
|
operator, value = value[:operator_length], value[operator_length:]
|
|
if key == 'fee_amount':
|
|
value = Decimal(value)*1000
|
|
query['must'].append({"range": {key: {ops[operator]: value}}})
|
|
elif many:
|
|
query['must'].append({"terms": {key: value}})
|
|
else:
|
|
if key == 'fee_amount':
|
|
value = Decimal(value)*1000
|
|
query['must'].append({"term": {key: {"value": value}}})
|
|
elif key == 'not_channel_ids':
|
|
for channel_id in value:
|
|
query['must_not'].append({"term": {'channel_id.keyword': channel_id}})
|
|
query['must_not'].append({"term": {'_id': channel_id}})
|
|
elif key == 'channel_ids':
|
|
query['must'].append({"terms": {'channel_id.keyword': value}})
|
|
elif key == 'media_types':
|
|
query['must'].append({"terms": {'media_type.keyword': value}})
|
|
elif key == 'stream_types':
|
|
query['must'].append({"terms": {'stream_type': [STREAM_TYPES[stype] for stype in value]}})
|
|
elif key == 'any_languages':
|
|
query['must'].append({"terms": {'languages': clean_tags(value)}})
|
|
elif key == 'any_languages':
|
|
query['must'].append({"terms": {'languages': value}})
|
|
elif key == 'all_languages':
|
|
query['must'].extend([{"term": {'languages': tag}} for tag in value])
|
|
elif key == 'any_tags':
|
|
query['must'].append({"terms": {'tags.keyword': clean_tags(value)}})
|
|
elif key == 'all_tags':
|
|
query['must'].extend([{"term": {'tags.keyword': tag}} for tag in clean_tags(value)])
|
|
elif key == 'not_tags':
|
|
query['must_not'].extend([{"term": {'tags.keyword': tag}} for tag in clean_tags(value)])
|
|
elif key == 'not_claim_id':
|
|
query['must_not'].extend([{"term": {'claim_id.keyword': cid}} for cid in value])
|
|
elif key == 'limit_claims_per_channel':
|
|
collapse = ('channel_id.keyword', value)
|
|
if kwargs.get('has_channel_signature'):
|
|
query['must'].append({"exists": {"field": "signature_digest"}})
|
|
if 'signature_valid' in kwargs:
|
|
query['must'].append({"term": {"signature_valid": bool(kwargs["signature_valid"])}})
|
|
elif 'signature_valid' in kwargs:
|
|
query.setdefault('should', [])
|
|
query["minimum_should_match"] = 1
|
|
query['should'].append({"bool": {"must_not": {"exists": {"field": "signature_digest"}}}})
|
|
query['should'].append({"term": {"signature_valid": bool(kwargs["signature_valid"])}})
|
|
if 'text' in kwargs:
|
|
return {"query":
|
|
{"simple_query_string":
|
|
{"query": kwargs["text"], "fields": [
|
|
"claim_name^4", "channel_name^8", "title^1", "description^.5", "author^1", "tags^.5"
|
|
]}}}
|
|
query = {
|
|
"_source": {"excludes": ["description", "title"]},
|
|
'query': {'bool': query},
|
|
"sort": [],
|
|
}
|
|
if "limit" in kwargs:
|
|
query["size"] = kwargs["limit"]
|
|
if 'offset' in kwargs:
|
|
query["from"] = kwargs["offset"]
|
|
if 'order_by' in kwargs:
|
|
for value in kwargs['order_by']:
|
|
is_asc = value.startswith('^')
|
|
value = value[1:] if is_asc else value
|
|
value = REPLACEMENTS.get(value, value)
|
|
if value in TEXT_FIELDS:
|
|
value += '.keyword'
|
|
query['sort'].append({value: "asc" if is_asc else "desc"})
|
|
if collapse:
|
|
query["collapse"] = {
|
|
"field": collapse[0],
|
|
"inner_hits": {
|
|
"name": collapse[0],
|
|
"size": collapse[1],
|
|
"sort": query["sort"]
|
|
}
|
|
}
|
|
return query
|
|
|
|
|
|
def expand_result(results):
|
|
inner_hits = []
|
|
for result in results:
|
|
if result.get("inner_hits"):
|
|
for _, inner_hit in result["inner_hits"].items():
|
|
inner_hits.extend(inner_hit["hits"]["hits"])
|
|
continue
|
|
result.update(result.pop('_source'))
|
|
result['claim_hash'] = unhexlify(result['claim_id'])[::-1]
|
|
if result['reposted_claim_id']:
|
|
result['reposted_claim_hash'] = unhexlify(result['reposted_claim_id'])[::-1]
|
|
else:
|
|
result['reposted_claim_hash'] = None
|
|
result['channel_hash'] = unhexlify(result['channel_id'])[::-1] if result['channel_id'] else None
|
|
result['txo_hash'] = unhexlify(result['tx_id'])[::-1] + struct.pack('<I', result['tx_nout'])
|
|
result['tx_hash'] = unhexlify(result['tx_id'])[::-1]
|
|
if result['censoring_channel_hash']:
|
|
result['censoring_channel_hash'] = unhexlify(result['censoring_channel_hash'])[::-1]
|
|
if inner_hits:
|
|
return expand_result(inner_hits)
|
|
return results
|