def resolve_url(raw_url):
censor = ctx.get().get_resolve_censor()
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 = search_claims(censor, **query, limit=1)
if matches:
channel = matches[0]
elif censor.censored:
return ResolveCensoredError(
raw_url,
hexlify(next(iter(censor.censored))[::-1]).decode())
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_hash'] = channel['claim_hash']
query['signature_valid'] = 1
elif set(query) == {'name'}:
query['is_controlling'] = 1
matches = search_claims(censor, **query, limit=1)
if matches:
return matches[0]
elif censor.censored:
return ResolveCensoredError(
raw_url,
hexlify(next(iter(censor.censored))[::-1]).decode())
else:
return LookupError(f'Could not find claim at "{raw_url}".')
return channel
async def resolve(self, *urls):
censor = Censor(Censor.RESOLVE)
results = [await self.resolve_url(url) for url in urls]
# just heat the cache
await self.populate_claim_cache(*filter(lambda x: isinstance(x, str), results))
results = [self._get_from_cache_or_error(url, result) for url, result in zip(urls, results)]
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