def store(self,
key,
value,
originalPublisherID=None,
age=0,
expireSeconds=KEY_EXPIRE_MAX_SECONDS,
**kwargs):
# TODO: add signature validation to be sure this is the owner of that key:value pair
count('store_dht_service')
if _Debug:
lg.out(
_DebugLevel,
'dht_service.DHTNode.store key=[%s] with %d bytes for %d seconds, counter=%d'
% (strng.to_string(key, errors='ignore')[:6], len(
str(value)), expireSeconds, counter('store')))
try:
return super(DHTNode,
self).store(key=key,
value=value,
originalPublisherID=originalPublisherID,
age=age,
expireSeconds=expireSeconds,
**kwargs)
except:
lg.exc()
return 'OK'
def _on_node_observe_failed(self, err, arg=None):
try:
self.failed += 1
if _Debug:
lg.warn('%r : %s' %
(arg, strng.to_string(repr(err), errors='ignore')))
except:
lg.exc()
return None
def sign(self, message, as_digits=True):
if not self.keyObject:
raise ValueError('key object is not exist')
if not strng.is_bin(message):
raise ValueError('message must be byte string')
h = hashes.sha1(message, return_object=True)
signature_bytes = pkcs1_15.new(self.keyObject).sign(h)
if not as_digits:
return signature_bytes
signature_raw = strng.to_bin(strng.to_string(number.bytes_to_long(signature_bytes)))
if signature_bytes[0:1] == b'\x00':
signature_raw = b'0' + signature_raw
return signature_raw
def request(self, key):
count('request')
if _Debug:
lg.out(_DebugLevel, 'dht_service.DHTNode.request key=[%s]' % strng.to_string(key, errors='ignore')[:10])
internal_value = get_node_data(key)
if internal_value is None and key in self._dataStore:
value = self._dataStore[key]
self.data[key] = value
if _Debug:
lg.out(_DebugLevel, ' found in _dataStore and saved as internal')
else:
value = internal_value
if value is None:
value = 0
if _Debug:
lg.out(_DebugLevel, ' read internal value, counter=%d' % counter('request'))
return {key: value, }
def UrlFilename(url):
"""
Generate a 'safe' filename from URL address.
This is useful when need to store identity files on disk.
nameurl.UrlFilename('http://id.bitdust.io/veselin.xml')
'http###id.bitdust.io#veselin.xml'
"""
if not url:
return None
result = strng.to_string(url)
result = result.replace("://", "###")
result = result.replace("/", "#")
result = re.sub('(\:)(\d+)', '(#\g<2>#)', result)
result = result.lower()
# global legalset
# # TODO: SECURITY Test that all characters are legal ones
# for x in result:
# if x not in legalset:
# raise Exception("nameurl.UrlFilename ERROR illegal character: \n" + url)
return result
def setVersion(self, version_string):
"""
"""
self.version = strng.to_bin(strng.to_string(version_string).strip())
