558 lines
22 KiB
Python
Executable File
558 lines
22 KiB
Python
Executable File
'''
|
|
Onionr - P2P Microblogging Platform & Social network
|
|
|
|
OnionrUtils offers various useful functions to Onionr. Relatively misc.
|
|
'''
|
|
'''
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
'''
|
|
# Misc functions that do not fit in the main api, but are useful
|
|
import getpass, sys, requests, os, socket, hashlib, logger, sqlite3, config, binascii, time, base64, json, glob, shutil, math, json, re, urllib.parse, string
|
|
import nacl.signing, nacl.encoding
|
|
from onionrblockapi import Block
|
|
import onionrexceptions
|
|
from onionr import API_VERSION
|
|
import onionrevents
|
|
import storagecounter
|
|
from etc import pgpwords
|
|
from onionrusers import onionrusers
|
|
if sys.version_info < (3, 6):
|
|
try:
|
|
import sha3
|
|
except ModuleNotFoundError:
|
|
logger.fatal('On Python 3 versions prior to 3.6.x, you need the sha3 module')
|
|
sys.exit(1)
|
|
|
|
class OnionrUtils:
|
|
'''
|
|
Various useful functions for validating things, etc functions, connectivity
|
|
'''
|
|
def __init__(self, coreInstance):
|
|
#self.fingerprintFile = 'data/own-fingerprint.txt' #TODO Remove since probably not needed
|
|
self._core = coreInstance # onionr core instance
|
|
|
|
self.timingToken = '' # for when we make local connections to our http api, to bypass timing attack defense mechanism
|
|
self.avoidDupe = [] # list used to prevent duplicate requests per peer for certain actions
|
|
self.peerProcessing = {} # dict of current peer actions: peer, actionList
|
|
self.storageCounter = storagecounter.StorageCounter(self._core) # used to keep track of how much data onionr is using on disk
|
|
config.reload() # onionr config
|
|
return
|
|
|
|
def getTimeBypassToken(self):
|
|
'''
|
|
Load our timingToken from disk for faster local HTTP API
|
|
'''
|
|
try:
|
|
if os.path.exists(self._core.dataDir + 'time-bypass.txt'):
|
|
with open(self._core.dataDir + 'time-bypass.txt', 'r') as bypass:
|
|
self.timingToken = bypass.read()
|
|
except Exception as error:
|
|
logger.error('Failed to fetch time bypass token.', error = error)
|
|
|
|
return self.timingToken
|
|
|
|
def getRoundedEpoch(self, roundS=60):
|
|
'''
|
|
Returns the epoch, rounded down to given seconds (Default 60)
|
|
'''
|
|
epoch = self.getEpoch()
|
|
return epoch - (epoch % roundS)
|
|
|
|
def getClientAPIServer(self):
|
|
retData = ''
|
|
try:
|
|
with open(self._core.privateApiHostFile, 'r') as host:
|
|
hostname = host.read()
|
|
except FileNotFoundError:
|
|
raise FileNotFoundError
|
|
else:
|
|
retData += '%s:%s' % (hostname, config.get('client.client.port'))
|
|
return retData
|
|
|
|
def localCommand(self, command, data='', silent = True, post=False, postData = {}, maxWait=20):
|
|
'''
|
|
Send a command to the local http API server, securely. Intended for local clients, DO NOT USE for remote peers.
|
|
'''
|
|
config.reload()
|
|
self.getTimeBypassToken()
|
|
# TODO: URL encode parameters, just as an extra measure. May not be needed, but should be added regardless.
|
|
hostname = ''
|
|
waited = 0
|
|
while hostname == '':
|
|
try:
|
|
hostname = self.getClientAPIServer()
|
|
except FileNotFoundError:
|
|
time.sleep(1)
|
|
waited += 1
|
|
if waited == maxWait:
|
|
return False
|
|
if data != '':
|
|
data = '&data=' + urllib.parse.quote_plus(data)
|
|
payload = 'http://%s/%s%s' % (hostname, command, data)
|
|
try:
|
|
if post:
|
|
retData = requests.post(payload, data=postData, headers={'token': config.get('client.webpassword'), 'Connection':'close'}, timeout=(maxWait, maxWait)).text
|
|
else:
|
|
retData = requests.get(payload, headers={'token': config.get('client.webpassword'), 'Connection':'close'}, timeout=(maxWait, maxWait)).text
|
|
except Exception as error:
|
|
if not silent:
|
|
logger.error('Failed to make local request (command: %s):%s' % (command, error))
|
|
retData = False
|
|
|
|
return retData
|
|
|
|
def getHumanReadableID(self, pub=''):
|
|
'''gets a human readable ID from a public key'''
|
|
if pub == '':
|
|
pub = self._core._crypto.pubKey
|
|
pub = base64.b16encode(base64.b32decode(pub)).decode()
|
|
return ' '.join(pgpwords.wordify(pub))
|
|
|
|
def convertHumanReadableID(self, pub):
|
|
'''Convert a human readable pubkey id to base32'''
|
|
pub = pub.lower()
|
|
return self.bytesToStr(base64.b32encode(binascii.unhexlify(pgpwords.hexify(pub.strip()))))
|
|
|
|
def getBlockMetadataFromData(self, blockData):
|
|
'''
|
|
accepts block contents as string, returns a tuple of
|
|
metadata, meta (meta being internal metadata, which will be
|
|
returned as an encrypted base64 string if it is encrypted, dict if not).
|
|
'''
|
|
meta = {}
|
|
metadata = {}
|
|
data = blockData
|
|
try:
|
|
blockData = blockData.encode()
|
|
except AttributeError:
|
|
pass
|
|
|
|
try:
|
|
metadata = json.loads(blockData[:blockData.find(b'\n')].decode())
|
|
except json.decoder.JSONDecodeError:
|
|
pass
|
|
else:
|
|
data = blockData[blockData.find(b'\n'):].decode()
|
|
|
|
if not metadata['encryptType'] in ('asym', 'sym'):
|
|
try:
|
|
meta = json.loads(metadata['meta'])
|
|
except KeyError:
|
|
pass
|
|
meta = metadata['meta']
|
|
return (metadata, meta, data)
|
|
|
|
def processBlockMetadata(self, blockHash):
|
|
'''
|
|
Read metadata from a block and cache it to the block database
|
|
'''
|
|
myBlock = Block(blockHash, self._core)
|
|
if myBlock.isEncrypted:
|
|
myBlock.decrypt()
|
|
if (myBlock.isEncrypted and myBlock.decrypted) or (not myBlock.isEncrypted):
|
|
blockType = myBlock.getMetadata('type') # we would use myBlock.getType() here, but it is bugged with encrypted blocks
|
|
signer = self.bytesToStr(myBlock.signer)
|
|
valid = myBlock.verifySig()
|
|
if myBlock.getMetadata('newFSKey') is not None:
|
|
onionrusers.OnionrUser(self._core, signer).addForwardKey(myBlock.getMetadata('newFSKey'))
|
|
|
|
try:
|
|
if len(blockType) <= 10:
|
|
self._core.updateBlockInfo(blockHash, 'dataType', blockType)
|
|
onionrevents.event('processblocks', data = {'block': myBlock, 'type': blockType, 'signer': signer, 'validSig': valid}, onionr = None)
|
|
except TypeError:
|
|
logger.warn("Missing block information")
|
|
pass
|
|
# Set block expire time if specified
|
|
try:
|
|
expireTime = myBlock.getHeader('expire')
|
|
assert len(str(int(expireTime))) < 20 # test that expire time is an integer of sane length (for epoch)
|
|
except (AssertionError, ValueError, TypeError) as e:
|
|
pass
|
|
else:
|
|
self._core.updateBlockInfo(blockHash, 'expire', expireTime)
|
|
else:
|
|
pass
|
|
#logger.debug('Not processing metadata on encrypted block we cannot decrypt.')
|
|
|
|
def escapeAnsi(self, line):
|
|
'''
|
|
Remove ANSI escape codes from a string with regex
|
|
|
|
taken or adapted from: https://stackoverflow.com/a/38662876
|
|
'''
|
|
ansi_escape = re.compile(r'(\x9B|\x1B\[)[0-?]*[ -/]*[@-~]')
|
|
return ansi_escape.sub('', line)
|
|
|
|
def hasBlock(self, hash):
|
|
'''
|
|
Check for new block in the list
|
|
'''
|
|
conn = sqlite3.connect(self._core.blockDB)
|
|
c = conn.cursor()
|
|
if not self.validateHash(hash):
|
|
raise Exception("Invalid hash")
|
|
for result in c.execute("SELECT COUNT() FROM hashes WHERE hash = ?", (hash,)):
|
|
if result[0] >= 1:
|
|
conn.commit()
|
|
conn.close()
|
|
return True
|
|
else:
|
|
conn.commit()
|
|
conn.close()
|
|
return False
|
|
|
|
def hasKey(self, key):
|
|
'''
|
|
Check for key in list of public keys
|
|
'''
|
|
return key in self._core.listPeers()
|
|
|
|
def validateHash(self, data, length=64):
|
|
'''
|
|
Validate if a string is a valid hash hex digest (does not compare, just checks length and charset)
|
|
'''
|
|
retVal = True
|
|
if data == False or data == True:
|
|
return False
|
|
data = data.strip()
|
|
if len(data) != length:
|
|
retVal = False
|
|
else:
|
|
try:
|
|
int(data, 16)
|
|
except ValueError:
|
|
retVal = False
|
|
|
|
return retVal
|
|
|
|
def validateMetadata(self, metadata, blockData):
|
|
'''Validate metadata meets onionr spec (does not validate proof value computation), take in either dictionary or json string'''
|
|
# TODO, make this check sane sizes
|
|
retData = False
|
|
maxClockDifference = 60
|
|
|
|
# convert to dict if it is json string
|
|
if type(metadata) is str:
|
|
try:
|
|
metadata = json.loads(metadata)
|
|
except json.JSONDecodeError:
|
|
pass
|
|
|
|
# Validate metadata dict for invalid keys to sizes that are too large
|
|
maxAge = config.get("general.max_block_age", 2678400)
|
|
if type(metadata) is dict:
|
|
for i in metadata:
|
|
try:
|
|
self._core.requirements.blockMetadataLengths[i]
|
|
except KeyError:
|
|
logger.warn('Block has invalid metadata key ' + i)
|
|
break
|
|
else:
|
|
testData = metadata[i]
|
|
try:
|
|
testData = len(testData)
|
|
except (TypeError, AttributeError) as e:
|
|
testData = len(str(testData))
|
|
if self._core.requirements.blockMetadataLengths[i] < testData:
|
|
logger.warn('Block metadata key ' + i + ' exceeded maximum size')
|
|
break
|
|
if i == 'time':
|
|
if not self.isIntegerString(metadata[i]):
|
|
logger.warn('Block metadata time stamp is not integer string or int')
|
|
break
|
|
isFuture = (metadata[i] - self.getEpoch())
|
|
if isFuture > maxClockDifference:
|
|
logger.warn('Block timestamp is skewed to the future over the max %s: %s' (maxClockDifference, isFuture))
|
|
break
|
|
if (self.getEpoch() - metadata[i]) > maxAge:
|
|
logger.warn('Block is outdated: %s' % (metadata[i],))
|
|
break
|
|
elif i == 'expire':
|
|
try:
|
|
assert int(metadata[i]) > self.getEpoch()
|
|
except AssertionError:
|
|
logger.warn('Block is expired')
|
|
break
|
|
elif i == 'encryptType':
|
|
try:
|
|
assert metadata[i] in ('asym', 'sym', '')
|
|
except AssertionError:
|
|
logger.warn('Invalid encryption mode')
|
|
break
|
|
else:
|
|
# if metadata loop gets no errors, it does not break, therefore metadata is valid
|
|
# make sure we do not have another block with the same data content (prevent data duplication and replay attacks)
|
|
nonce = self._core._utils.bytesToStr(self._core._crypto.sha3Hash(blockData))
|
|
try:
|
|
with open(self._core.dataNonceFile, 'r') as nonceFile:
|
|
if nonce in nonceFile.read():
|
|
retData = False # we've seen that nonce before, so we can't pass metadata
|
|
raise onionrexceptions.DataExists
|
|
except FileNotFoundError:
|
|
retData = True
|
|
except onionrexceptions.DataExists:
|
|
# do not set retData to True, because nonce has been seen before
|
|
pass
|
|
else:
|
|
retData = True
|
|
else:
|
|
logger.warn('In call to utils.validateMetadata, metadata must be JSON string or a dictionary object')
|
|
|
|
return retData
|
|
|
|
def validatePubKey(self, key):
|
|
'''
|
|
Validate if a string is a valid base32 encoded Ed25519 key
|
|
'''
|
|
retVal = False
|
|
if type(key) is type(None):
|
|
return False
|
|
try:
|
|
nacl.signing.SigningKey(seed=key, encoder=nacl.encoding.Base32Encoder)
|
|
except nacl.exceptions.ValueError:
|
|
pass
|
|
except base64.binascii.Error as err:
|
|
pass
|
|
else:
|
|
retVal = True
|
|
return retVal
|
|
|
|
def validateID(self, id):
|
|
'''
|
|
Validate if an address is a valid tor or i2p hidden service
|
|
'''
|
|
try:
|
|
idLength = len(id)
|
|
retVal = True
|
|
idNoDomain = ''
|
|
peerType = ''
|
|
# i2p b32 addresses are 60 characters long (including .b32.i2p)
|
|
if idLength == 60:
|
|
peerType = 'i2p'
|
|
if not id.endswith('.b32.i2p'):
|
|
retVal = False
|
|
else:
|
|
idNoDomain = id.split('.b32.i2p')[0]
|
|
# Onion v2's are 22 (including .onion), v3's are 62 with .onion
|
|
elif idLength == 22 or idLength == 62:
|
|
peerType = 'onion'
|
|
if not id.endswith('.onion'):
|
|
retVal = False
|
|
else:
|
|
idNoDomain = id.split('.onion')[0]
|
|
else:
|
|
retVal = False
|
|
if retVal:
|
|
if peerType == 'i2p':
|
|
try:
|
|
id.split('.b32.i2p')[2]
|
|
except:
|
|
pass
|
|
else:
|
|
retVal = False
|
|
elif peerType == 'onion':
|
|
try:
|
|
id.split('.onion')[2]
|
|
except:
|
|
pass
|
|
else:
|
|
retVal = False
|
|
if not idNoDomain.isalnum():
|
|
retVal = False
|
|
|
|
# Validate address is valid base32 (when capitalized and minus extension); v2/v3 onions and .b32.i2p use base32
|
|
for x in idNoDomain.upper():
|
|
if x not in string.ascii_uppercase and x not in '234567':
|
|
retVal = False
|
|
|
|
return retVal
|
|
except:
|
|
return False
|
|
|
|
def isIntegerString(self, data):
|
|
'''Check if a string is a valid base10 integer (also returns true if already an int)'''
|
|
try:
|
|
int(data)
|
|
except (ValueError, TypeError) as e:
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
def isCommunicatorRunning(self, timeout = 5, interval = 0.1):
|
|
try:
|
|
runcheck_file = self._core.dataDir + '.runcheck'
|
|
|
|
if not os.path.isfile(runcheck_file):
|
|
open(runcheck_file, 'w+').close()
|
|
|
|
# self._core.daemonQueueAdd('runCheck') # deprecated
|
|
starttime = time.time()
|
|
|
|
while True:
|
|
time.sleep(interval)
|
|
|
|
if not os.path.isfile(runcheck_file):
|
|
return True
|
|
elif time.time() - starttime >= timeout:
|
|
return False
|
|
except:
|
|
return False
|
|
|
|
def importNewBlocks(self, scanDir=''):
|
|
'''
|
|
This function is intended to scan for new blocks ON THE DISK and import them
|
|
'''
|
|
blockList = self._core.getBlockList()
|
|
if scanDir == '':
|
|
scanDir = self._core.blockDataLocation
|
|
if not scanDir.endswith('/'):
|
|
scanDir += '/'
|
|
for block in glob.glob(scanDir + "*.dat"):
|
|
if block.replace(scanDir, '').replace('.dat', '') not in blockList:
|
|
logger.info('Found new block on dist %s' % block)
|
|
with open(block, 'rb') as newBlock:
|
|
block = block.replace(scanDir, '').replace('.dat', '')
|
|
if self._core._crypto.sha3Hash(newBlock.read()) == block.replace('.dat', ''):
|
|
self._core.addToBlockDB(block.replace('.dat', ''), dataSaved=True)
|
|
logger.info('Imported block %s.' % block)
|
|
self._core._utils.processBlockMetadata(block)
|
|
else:
|
|
logger.warn('Failed to verify hash for %s' % block)
|
|
|
|
def progressBar(self, value = 0, endvalue = 100, width = None):
|
|
'''
|
|
Outputs a progress bar with a percentage. Write \n after use.
|
|
'''
|
|
|
|
if width is None or height is None:
|
|
width, height = shutil.get_terminal_size((80, 24))
|
|
|
|
bar_length = width - 6
|
|
|
|
percent = float(value) / endvalue
|
|
arrow = '─' * int(round(percent * bar_length)-1) + '>'
|
|
spaces = ' ' * (bar_length - len(arrow))
|
|
|
|
sys.stdout.write("\r┣{0}┫ {1}%".format(arrow + spaces, int(round(percent * 100))))
|
|
sys.stdout.flush()
|
|
|
|
def getEpoch(self):
|
|
'''returns epoch'''
|
|
return math.floor(time.time())
|
|
|
|
def doPostRequest(self, url, data={}, port=0, proxyType='tor'):
|
|
'''
|
|
Do a POST request through a local tor or i2p instance
|
|
'''
|
|
if proxyType == 'tor':
|
|
if port == 0:
|
|
port = self._core.torPort
|
|
proxies = {'http': 'socks4a://127.0.0.1:' + str(port), 'https': 'socks4a://127.0.0.1:' + str(port)}
|
|
elif proxyType == 'i2p':
|
|
proxies = {'http': 'http://127.0.0.1:4444'}
|
|
else:
|
|
return
|
|
headers = {'user-agent': 'PyOnionr', 'Connection':'close'}
|
|
try:
|
|
proxies = {'http': 'socks4a://127.0.0.1:' + str(port), 'https': 'socks4a://127.0.0.1:' + str(port)}
|
|
r = requests.post(url, data=data, headers=headers, proxies=proxies, allow_redirects=False, timeout=(15, 30))
|
|
retData = r.text
|
|
except KeyboardInterrupt:
|
|
raise KeyboardInterrupt
|
|
except requests.exceptions.RequestException as e:
|
|
logger.debug('Error: %s' % str(e))
|
|
retData = False
|
|
return retData
|
|
|
|
def doGetRequest(self, url, port=0, proxyType='tor', ignoreAPI=False):
|
|
'''
|
|
Do a get request through a local tor or i2p instance
|
|
'''
|
|
retData = False
|
|
if proxyType == 'tor':
|
|
if port == 0:
|
|
raise onionrexceptions.MissingPort('Socks port required for Tor HTTP get request')
|
|
proxies = {'http': 'socks4a://127.0.0.1:' + str(port), 'https': 'socks4a://127.0.0.1:' + str(port)}
|
|
elif proxyType == 'i2p':
|
|
proxies = {'http': 'http://127.0.0.1:4444'}
|
|
else:
|
|
return
|
|
headers = {'user-agent': 'PyOnionr', 'Connection':'close'}
|
|
response_headers = dict()
|
|
try:
|
|
proxies = {'http': 'socks4a://127.0.0.1:' + str(port), 'https': 'socks4a://127.0.0.1:' + str(port)}
|
|
r = requests.get(url, headers=headers, proxies=proxies, allow_redirects=False, timeout=(15, 30), )
|
|
# Check server is using same API version as us
|
|
if not ignoreAPI:
|
|
try:
|
|
response_headers = r.headers
|
|
if r.headers['X-API'] != str(API_VERSION):
|
|
raise onionrexceptions.InvalidAPIVersion
|
|
except KeyError:
|
|
raise onionrexceptions.InvalidAPIVersion
|
|
retData = r.text
|
|
except KeyboardInterrupt:
|
|
raise KeyboardInterrupt
|
|
except ValueError as e:
|
|
logger.debug('Failed to make GET request to %s' % url, error = e, sensitive = True)
|
|
except onionrexceptions.InvalidAPIVersion:
|
|
if 'X-API' in response_headers:
|
|
logger.debug('Using API version %s. Cannot communicate with node\'s API version of %s.' % (API_VERSION, response_headers['X-API']))
|
|
else:
|
|
logger.debug('Using API version %s. API version was not sent with the request.' % API_VERSION)
|
|
except requests.exceptions.RequestException as e:
|
|
if not 'ConnectTimeoutError' in str(e) and not 'Request rejected or failed' in str(e):
|
|
logger.debug('Error: %s' % str(e))
|
|
retData = False
|
|
return retData
|
|
|
|
def strToBytes(self, data):
|
|
try:
|
|
data = data.encode()
|
|
except AttributeError:
|
|
pass
|
|
return data
|
|
def bytesToStr(self, data):
|
|
try:
|
|
data = data.decode()
|
|
except AttributeError:
|
|
pass
|
|
return data
|
|
|
|
def size(path='.'):
|
|
'''
|
|
Returns the size of a folder's contents in bytes
|
|
'''
|
|
total = 0
|
|
if os.path.exists(path):
|
|
if os.path.isfile(path):
|
|
total = os.path.getsize(path)
|
|
else:
|
|
for entry in os.scandir(path):
|
|
if entry.is_file():
|
|
total += entry.stat().st_size
|
|
elif entry.is_dir():
|
|
total += size(entry.path)
|
|
return total
|
|
|
|
def humanSize(num, suffix='B'):
|
|
'''
|
|
Converts from bytes to a human readable format.
|
|
'''
|
|
for unit in ['', 'K', 'M', 'G', 'T', 'P', 'E', 'Z']:
|
|
if abs(num) < 1024.0:
|
|
return "%.1f %s%s" % (num, unit, suffix)
|
|
num /= 1024.0
|
|
return "%.1f %s%s" % (num, 'Yi', suffix) |