refreshed and renamed docs, added bootstrap server, added default config for sec auditing
This commit is contained in:
Kevin Froman
parent
fe36b87c57
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6960d9209d
270 changed files with 20816 additions and 8345 deletions
59
docs/html/src/onionrproofs/blocknoncestart.html
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59
docs/html/src/onionrproofs/blocknoncestart.html
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</head>
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<body>
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<main>
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<article id="content">
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<header>
|
||||
<h1 class="title">Module <code>src.onionrproofs.blocknoncestart</code></h1>
|
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</header>
|
||||
<section id="section-intro">
|
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<details class="source">
|
||||
<summary>
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<span>Expand source code</span>
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</summary>
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<pre><code class="python">BLOCK_NONCE_START_INT = -10000000</code></pre>
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</details>
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</section>
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<section>
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</section>
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<section>
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</section>
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<section>
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</section>
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<section>
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</section>
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</article>
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<nav id="sidebar">
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<h1>Index</h1>
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<div class="toc">
|
||||
<ul></ul>
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||||
</div>
|
||||
<ul id="index">
|
||||
<li><h3>Super-module</h3>
|
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<ul>
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<li><code><a title="src.onionrproofs" href="index.html">src.onionrproofs</a></code></li>
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</ul>
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582
docs/html/src/onionrproofs/index.html
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582
docs/html/src/onionrproofs/index.html
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</head>
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<body>
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||||
<main>
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||||
<article id="content">
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||||
<header>
|
||||
<h1 class="title">Module <code>src.onionrproofs</code></h1>
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</header>
|
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<section id="section-intro">
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<p>Onionr - Private P2P Communication</p>
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||||
<p>Proof of work module</p>
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<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
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||||
</summary>
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<pre><code class="python">'''
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Onionr - Private P2P Communication
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Proof of work module
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'''
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'''
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This program is free software: you can redistribute it and/or modify
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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.
|
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|
||||
This program is distributed in the hope that it will be useful,
|
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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.
|
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|
||||
You should have received a copy of the GNU General Public License
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||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
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'''
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import multiprocessing, time, math, threading, binascii, sys, json
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import nacl.encoding, nacl.hash, nacl.utils
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import config, logger
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from onionrblocks import onionrblockapi, storagecounter
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from onionrutils import bytesconverter
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from onionrcrypto import hashers
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from .blocknoncestart import BLOCK_NONCE_START_INT
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config.reload()
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def getDifficultyModifier():
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'''returns the difficulty modifier for block storage based
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on a variety of factors, currently only disk use.
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'''
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percentUse = storagecounter.StorageCounter().get_percent()
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difficultyIncrease = math.floor(4 * percentUse) # difficulty increase is a step function
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return difficultyIncrease
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def getDifficultyForNewBlock(data):
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'''
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Get difficulty for block. Accepts size in integer, Block instance, or str/bytes full block contents
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'''
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if isinstance(data, onionrblockapi.Block):
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dataSizeInBytes = len(bytesconverter.str_to_bytes(data.getRaw()))
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else:
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dataSizeInBytes = len(bytesconverter.str_to_bytes(data))
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minDifficulty = config.get('general.minimum_send_pow', 4)
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totalDifficulty = max(minDifficulty, math.floor(dataSizeInBytes / 1000000.0)) + getDifficultyModifier()
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return totalDifficulty
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return retData
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def getHashDifficulty(h: str):
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'''
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Return the amount of leading zeroes in a hex hash string (hexHash)
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'''
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return len(h) - len(h.lstrip('0'))
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def hashMeetsDifficulty(hexHash):
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'''
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Return bool for a hash string to see if it meets pow difficulty defined in config
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'''
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hashDifficulty = getHashDifficulty(hexHash)
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try:
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expected = int(config.get('general.minimum_block_pow'))
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except TypeError:
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raise ValueError('Missing general.minimum_block_pow config')
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return hashDifficulty >= expected
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class POW:
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def __init__(self, metadata, data, threadCount = 1, minDifficulty=0):
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self.foundHash = False
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self.difficulty = 0
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self.data = data
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self.metadata = metadata
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self.threadCount = threadCount
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self.hashing = False
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json_metadata = json.dumps(metadata).encode()
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try:
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self.data = self.data.encode()
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except AttributeError:
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pass
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if minDifficulty > 0:
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self.difficulty = minDifficulty
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else:
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# Calculate difficulty. Dumb for now, may use good algorithm in the future.
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self.difficulty = getDifficultyForNewBlock(bytes(json_metadata + b'\n' + self.data))
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logger.info('Computing POW (difficulty: %s)...' % (self.difficulty,))
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self.mainHash = '0' * 64
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self.puzzle = self.mainHash[0:min(self.difficulty, len(self.mainHash))]
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for i in range(max(1, threadCount)):
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t = threading.Thread(name = 'thread%s' % i, target = self.pow, args = (True,))
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t.start()
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def pow(self, reporting = False):
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startTime = math.floor(time.time())
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self.hashing = True
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self.reporting = reporting
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iFound = False # if current thread is the one that found the answer
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nonce = BLOCK_NONCE_START_INT
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while self.hashing:
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self.metadata['pow'] = nonce
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payload = json.dumps(self.metadata).encode() + b'\n' + self.data
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token = hashers.sha3_hash(payload)
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try:
|
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# on some versions, token is bytes
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token = token.decode()
|
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except AttributeError:
|
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pass
|
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if self.puzzle == token[0:self.difficulty]:
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self.hashing = False
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iFound = True
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self.result = payload
|
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break
|
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nonce += 1
|
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|
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if iFound:
|
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endTime = math.floor(time.time())
|
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if self.reporting:
|
||||
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)
|
||||
|
||||
def shutdown(self):
|
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self.hashing = False
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self.puzzle = ''
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|
||||
def changeDifficulty(self, newDiff):
|
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self.difficulty = newDiff
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||||
|
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def getResult(self):
|
||||
'''
|
||||
Returns the result then sets to false, useful to automatically clear the result
|
||||
'''
|
||||
|
||||
try:
|
||||
retVal = self.result
|
||||
except AttributeError:
|
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retVal = False
|
||||
|
||||
self.result = False
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return retVal
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||||
|
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def waitForResult(self):
|
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'''
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Returns the result only when it has been found, False if not running and not found
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'''
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result = False
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try:
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while True:
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result = self.getResult()
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if not self.hashing:
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break
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else:
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time.sleep(1)
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except KeyboardInterrupt:
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self.shutdown()
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logger.warn('Got keyboard interrupt while waiting for POW result, stopping')
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return result</code></pre>
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</details>
|
||||
</section>
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<section>
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||||
<h2 class="section-title" id="header-submodules">Sub-modules</h2>
|
||||
<dl>
|
||||
<dt><code class="name"><a title="src.onionrproofs.blocknoncestart" href="blocknoncestart.html">src.onionrproofs.blocknoncestart</a></code></dt>
|
||||
<dd>
|
||||
<section class="desc"></section>
|
||||
</dd>
|
||||
<dt><code class="name"><a title="src.onionrproofs.subprocesspow" href="subprocesspow.html">src.onionrproofs.subprocesspow</a></code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Onionr - Private P2P Communication …</p></section>
|
||||
</dd>
|
||||
</dl>
|
||||
</section>
|
||||
<section>
|
||||
</section>
|
||||
<section>
|
||||
<h2 class="section-title" id="header-functions">Functions</h2>
|
||||
<dl>
|
||||
<dt id="src.onionrproofs.getDifficultyForNewBlock"><code class="name flex">
|
||||
<span>def <span class="ident">getDifficultyForNewBlock</span></span>(<span>data)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Get difficulty for block. Accepts size in integer, Block instance, or str/bytes full block contents</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def getDifficultyForNewBlock(data):
|
||||
'''
|
||||
Get difficulty for block. Accepts size in integer, Block instance, or str/bytes full block contents
|
||||
'''
|
||||
if isinstance(data, onionrblockapi.Block):
|
||||
dataSizeInBytes = len(bytesconverter.str_to_bytes(data.getRaw()))
|
||||
else:
|
||||
dataSizeInBytes = len(bytesconverter.str_to_bytes(data))
|
||||
|
||||
minDifficulty = config.get('general.minimum_send_pow', 4)
|
||||
totalDifficulty = max(minDifficulty, math.floor(dataSizeInBytes / 1000000.0)) + getDifficultyModifier()
|
||||
|
||||
return totalDifficulty
|
||||
|
||||
return retData</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.getDifficultyModifier"><code class="name flex">
|
||||
<span>def <span class="ident">getDifficultyModifier</span></span>(<span>)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>returns the difficulty modifier for block storage based
|
||||
on a variety of factors, currently only disk use.</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def getDifficultyModifier():
|
||||
'''returns the difficulty modifier for block storage based
|
||||
on a variety of factors, currently only disk use.
|
||||
'''
|
||||
percentUse = storagecounter.StorageCounter().get_percent()
|
||||
difficultyIncrease = math.floor(4 * percentUse) # difficulty increase is a step function
|
||||
|
||||
return difficultyIncrease</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.getHashDifficulty"><code class="name flex">
|
||||
<span>def <span class="ident">getHashDifficulty</span></span>(<span>h)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Return the amount of leading zeroes in a hex hash string (hexHash)</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def getHashDifficulty(h: str):
|
||||
'''
|
||||
Return the amount of leading zeroes in a hex hash string (hexHash)
|
||||
'''
|
||||
return len(h) - len(h.lstrip('0'))</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.hashMeetsDifficulty"><code class="name flex">
|
||||
<span>def <span class="ident">hashMeetsDifficulty</span></span>(<span>hexHash)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Return bool for a hash string to see if it meets pow difficulty defined in config</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def hashMeetsDifficulty(hexHash):
|
||||
'''
|
||||
Return bool for a hash string to see if it meets pow difficulty defined in config
|
||||
'''
|
||||
hashDifficulty = getHashDifficulty(hexHash)
|
||||
|
||||
try:
|
||||
expected = int(config.get('general.minimum_block_pow'))
|
||||
except TypeError:
|
||||
raise ValueError('Missing general.minimum_block_pow config')
|
||||
|
||||
return hashDifficulty >= expected</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
</dl>
|
||||
</section>
|
||||
<section>
|
||||
<h2 class="section-title" id="header-classes">Classes</h2>
|
||||
<dl>
|
||||
<dt id="src.onionrproofs.POW"><code class="flex name class">
|
||||
<span>class <span class="ident">POW</span></span>
|
||||
<span>(</span><span>metadata, data, threadCount=1, minDifficulty=0)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">class POW:
|
||||
def __init__(self, metadata, data, threadCount = 1, minDifficulty=0):
|
||||
self.foundHash = False
|
||||
self.difficulty = 0
|
||||
self.data = data
|
||||
self.metadata = metadata
|
||||
self.threadCount = threadCount
|
||||
self.hashing = False
|
||||
|
||||
json_metadata = json.dumps(metadata).encode()
|
||||
|
||||
try:
|
||||
self.data = self.data.encode()
|
||||
except AttributeError:
|
||||
pass
|
||||
|
||||
if minDifficulty > 0:
|
||||
self.difficulty = minDifficulty
|
||||
else:
|
||||
# Calculate difficulty. Dumb for now, may use good algorithm in the future.
|
||||
self.difficulty = getDifficultyForNewBlock(bytes(json_metadata + b'\n' + self.data))
|
||||
|
||||
logger.info('Computing POW (difficulty: %s)...' % (self.difficulty,))
|
||||
|
||||
self.mainHash = '0' * 64
|
||||
self.puzzle = self.mainHash[0:min(self.difficulty, len(self.mainHash))]
|
||||
|
||||
for i in range(max(1, threadCount)):
|
||||
t = threading.Thread(name = 'thread%s' % i, target = self.pow, args = (True,))
|
||||
t.start()
|
||||
|
||||
def pow(self, reporting = False):
|
||||
startTime = math.floor(time.time())
|
||||
self.hashing = True
|
||||
self.reporting = reporting
|
||||
iFound = False # if current thread is the one that found the answer
|
||||
nonce = BLOCK_NONCE_START_INT
|
||||
while self.hashing:
|
||||
self.metadata['pow'] = nonce
|
||||
payload = json.dumps(self.metadata).encode() + b'\n' + self.data
|
||||
token = hashers.sha3_hash(payload)
|
||||
try:
|
||||
# on some versions, token is bytes
|
||||
token = token.decode()
|
||||
except AttributeError:
|
||||
pass
|
||||
if self.puzzle == token[0:self.difficulty]:
|
||||
self.hashing = False
|
||||
iFound = True
|
||||
self.result = payload
|
||||
break
|
||||
nonce += 1
|
||||
|
||||
if iFound:
|
||||
endTime = math.floor(time.time())
|
||||
if self.reporting:
|
||||
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)
|
||||
|
||||
def shutdown(self):
|
||||
self.hashing = False
|
||||
self.puzzle = ''
|
||||
|
||||
def changeDifficulty(self, newDiff):
|
||||
self.difficulty = newDiff
|
||||
|
||||
def getResult(self):
|
||||
'''
|
||||
Returns the result then sets to false, useful to automatically clear the result
|
||||
'''
|
||||
|
||||
try:
|
||||
retVal = self.result
|
||||
except AttributeError:
|
||||
retVal = False
|
||||
|
||||
self.result = False
|
||||
return retVal
|
||||
|
||||
def waitForResult(self):
|
||||
'''
|
||||
Returns the result only when it has been found, False if not running and not found
|
||||
'''
|
||||
result = False
|
||||
try:
|
||||
while True:
|
||||
result = self.getResult()
|
||||
if not self.hashing:
|
||||
break
|
||||
else:
|
||||
time.sleep(1)
|
||||
except KeyboardInterrupt:
|
||||
self.shutdown()
|
||||
logger.warn('Got keyboard interrupt while waiting for POW result, stopping')
|
||||
return result</code></pre>
|
||||
</details>
|
||||
<h3>Methods</h3>
|
||||
<dl>
|
||||
<dt id="src.onionrproofs.POW.changeDifficulty"><code class="name flex">
|
||||
<span>def <span class="ident">changeDifficulty</span></span>(<span>self, newDiff)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def changeDifficulty(self, newDiff):
|
||||
self.difficulty = newDiff</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.POW.getResult"><code class="name flex">
|
||||
<span>def <span class="ident">getResult</span></span>(<span>self)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Returns the result then sets to false, useful to automatically clear the result</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def getResult(self):
|
||||
'''
|
||||
Returns the result then sets to false, useful to automatically clear the result
|
||||
'''
|
||||
|
||||
try:
|
||||
retVal = self.result
|
||||
except AttributeError:
|
||||
retVal = False
|
||||
|
||||
self.result = False
|
||||
return retVal</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.POW.pow"><code class="name flex">
|
||||
<span>def <span class="ident">pow</span></span>(<span>self, reporting=False)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def pow(self, reporting = False):
|
||||
startTime = math.floor(time.time())
|
||||
self.hashing = True
|
||||
self.reporting = reporting
|
||||
iFound = False # if current thread is the one that found the answer
|
||||
nonce = BLOCK_NONCE_START_INT
|
||||
while self.hashing:
|
||||
self.metadata['pow'] = nonce
|
||||
payload = json.dumps(self.metadata).encode() + b'\n' + self.data
|
||||
token = hashers.sha3_hash(payload)
|
||||
try:
|
||||
# on some versions, token is bytes
|
||||
token = token.decode()
|
||||
except AttributeError:
|
||||
pass
|
||||
if self.puzzle == token[0:self.difficulty]:
|
||||
self.hashing = False
|
||||
iFound = True
|
||||
self.result = payload
|
||||
break
|
||||
nonce += 1
|
||||
|
||||
if iFound:
|
||||
endTime = math.floor(time.time())
|
||||
if self.reporting:
|
||||
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.POW.shutdown"><code class="name flex">
|
||||
<span>def <span class="ident">shutdown</span></span>(<span>self)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def shutdown(self):
|
||||
self.hashing = False
|
||||
self.puzzle = ''</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.POW.waitForResult"><code class="name flex">
|
||||
<span>def <span class="ident">waitForResult</span></span>(<span>self)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Returns the result only when it has been found, False if not running and not found</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def waitForResult(self):
|
||||
'''
|
||||
Returns the result only when it has been found, False if not running and not found
|
||||
'''
|
||||
result = False
|
||||
try:
|
||||
while True:
|
||||
result = self.getResult()
|
||||
if not self.hashing:
|
||||
break
|
||||
else:
|
||||
time.sleep(1)
|
||||
except KeyboardInterrupt:
|
||||
self.shutdown()
|
||||
logger.warn('Got keyboard interrupt while waiting for POW result, stopping')
|
||||
return result</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
</dl>
|
||||
</dd>
|
||||
</dl>
|
||||
</section>
|
||||
</article>
|
||||
<nav id="sidebar">
|
||||
<h1>Index</h1>
|
||||
<div class="toc">
|
||||
<ul></ul>
|
||||
</div>
|
||||
<ul id="index">
|
||||
<li><h3>Super-module</h3>
|
||||
<ul>
|
||||
<li><code><a title="src" href="../index.html">src</a></code></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><h3><a href="#header-submodules">Sub-modules</a></h3>
|
||||
<ul>
|
||||
<li><code><a title="src.onionrproofs.blocknoncestart" href="blocknoncestart.html">src.onionrproofs.blocknoncestart</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.subprocesspow" href="subprocesspow.html">src.onionrproofs.subprocesspow</a></code></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><h3><a href="#header-functions">Functions</a></h3>
|
||||
<ul class="">
|
||||
<li><code><a title="src.onionrproofs.getDifficultyForNewBlock" href="#src.onionrproofs.getDifficultyForNewBlock">getDifficultyForNewBlock</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.getDifficultyModifier" href="#src.onionrproofs.getDifficultyModifier">getDifficultyModifier</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.getHashDifficulty" href="#src.onionrproofs.getHashDifficulty">getHashDifficulty</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.hashMeetsDifficulty" href="#src.onionrproofs.hashMeetsDifficulty">hashMeetsDifficulty</a></code></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><h3><a href="#header-classes">Classes</a></h3>
|
||||
<ul>
|
||||
<li>
|
||||
<h4><code><a title="src.onionrproofs.POW" href="#src.onionrproofs.POW">POW</a></code></h4>
|
||||
<ul class="">
|
||||
<li><code><a title="src.onionrproofs.POW.changeDifficulty" href="#src.onionrproofs.POW.changeDifficulty">changeDifficulty</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.POW.getResult" href="#src.onionrproofs.POW.getResult">getResult</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.POW.pow" href="#src.onionrproofs.POW.pow">pow</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.POW.shutdown" href="#src.onionrproofs.POW.shutdown">shutdown</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.POW.waitForResult" href="#src.onionrproofs.POW.waitForResult">waitForResult</a></code></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</nav>
|
||||
</main>
|
||||
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|
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|
||||
</body>
|
||||
</html>
|
||||
392
docs/html/src/onionrproofs/subprocesspow.html
Normal file
392
docs/html/src/onionrproofs/subprocesspow.html
Normal file
|
|
@ -0,0 +1,392 @@
|
|||
<!doctype html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
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|
||||
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" />
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<title>src.onionrproofs.subprocesspow API documentation</title>
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||||
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|
||||
<style media="screen and (min-width: 700px)">@media screen and (min-width:700px){#sidebar{width:30%}#content{width:70%;max-width:100ch;padding:3em 4em;border-left:1px solid #ddd}pre code{font-size:1em}.item .name{font-size:1em}main{display:flex;flex-direction:row-reverse;justify-content:flex-end}.toc ul ul,#index ul{padding-left:1.5em}.toc > ul > li{margin-top:.5em}}</style>
|
||||
<style media="print">@media print{#sidebar h1{page-break-before:always}.source{display:none}}@media print{*{background:transparent !important;color:#000 !important;box-shadow:none !important;text-shadow:none !important}a[href]:after{content:" (" attr(href) ")";font-size:90%}a[href][title]:after{content:none}abbr[title]:after{content:" (" attr(title) ")"}.ir a:after,a[href^="javascript:"]:after,a[href^="#"]:after{content:""}pre,blockquote{border:1px solid #999;page-break-inside:avoid}thead{display:table-header-group}tr,img{page-break-inside:avoid}img{max-width:100% !important}@page{margin:0.5cm}p,h2,h3{orphans:3;widows:3}h1,h2,h3,h4,h5,h6{page-break-after:avoid}}</style>
|
||||
</head>
|
||||
<body>
|
||||
<main>
|
||||
<article id="content">
|
||||
<header>
|
||||
<h1 class="title">Module <code>src.onionrproofs.subprocesspow</code></h1>
|
||||
</header>
|
||||
<section id="section-intro">
|
||||
<p>Onionr - Private P2P Communication</p>
|
||||
<p>Multiprocess proof of work</p>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">#!/usr/bin/env python3
|
||||
"""
|
||||
Onionr - Private P2P Communication
|
||||
|
||||
Multiprocess proof of work
|
||||
"""
|
||||
|
||||
import os
|
||||
from multiprocessing import Pipe, Process
|
||||
import threading
|
||||
import time
|
||||
import json
|
||||
|
||||
import logger
|
||||
import onionrproofs
|
||||
import onionrcrypto as crypto
|
||||
from onionrutils import bytesconverter
|
||||
from .blocknoncestart import BLOCK_NONCE_START_INT
|
||||
|
||||
"""
|
||||
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/>.
|
||||
"""
|
||||
|
||||
|
||||
class SubprocessPOW:
|
||||
def __init__(self, data, metadata, subproc_count=None):
|
||||
"""
|
||||
Onionr proof of work using multiple processes
|
||||
Accepts block data, block metadata
|
||||
if subproc_count is not set,
|
||||
os.cpu_count() is used to determine the number of processes
|
||||
|
||||
Due to Python GIL multiprocessing/use of external libraries
|
||||
is necessary to accelerate CPU bound tasks
|
||||
"""
|
||||
# No known benefit to using more processes than there are cores.
|
||||
# Note: os.cpu_count perhaps not always accurate
|
||||
if subproc_count is None:
|
||||
subproc_count = os.cpu_count()
|
||||
self.subproc_count = subproc_count
|
||||
self.result = ''
|
||||
self.shutdown = False
|
||||
self.data = data
|
||||
self.metadata = metadata
|
||||
|
||||
"""dump dict to measure bytes of json metadata
|
||||
Cannot reuse later bc the pow token must be added
|
||||
"""
|
||||
json_metadata = json.dumps(metadata).encode()
|
||||
|
||||
self.data = bytesconverter.str_to_bytes(data)
|
||||
|
||||
compiled_data = bytes(json_metadata + b'\n' + self.data)
|
||||
|
||||
# Calculate difficulty. May use better algorithm in the future.
|
||||
self.difficulty = onionrproofs.getDifficultyForNewBlock(compiled_data)
|
||||
|
||||
logger.info('Computing POW (difficulty: %s)...' % (self.difficulty,))
|
||||
|
||||
self.main_hash = '0' * 64
|
||||
self.puzzle = self.main_hash[0:min(self.difficulty,
|
||||
len(self.main_hash))]
|
||||
self.shutdown = False
|
||||
self.payload = None
|
||||
|
||||
def start(self):
|
||||
"""spawn the multiproc handler threads"""
|
||||
# Create a new thread for each subprocess
|
||||
for _ in range(self.subproc_count): # noqa
|
||||
threading.Thread(target=self._spawn_proc, daemon=True).start()
|
||||
# Monitor the processes for a payload, shut them down when its found
|
||||
while True:
|
||||
if self.payload is None:
|
||||
time.sleep(0.1)
|
||||
else:
|
||||
self.shutdown = True
|
||||
return self.payload
|
||||
|
||||
def _spawn_proc(self):
|
||||
"""Create a child proof of work process
|
||||
wait for data and send shutdown signal when its found"""
|
||||
parent_conn, child_conn = Pipe()
|
||||
p = Process(target=self.do_pow, args=(child_conn,), daemon=True)
|
||||
p.start()
|
||||
p.join()
|
||||
payload = None
|
||||
try:
|
||||
while True:
|
||||
data = parent_conn.recv()
|
||||
if len(data) >= 1:
|
||||
payload = data
|
||||
break
|
||||
except KeyboardInterrupt:
|
||||
pass
|
||||
finally:
|
||||
parent_conn.send('shutdown')
|
||||
self.payload = payload
|
||||
|
||||
def do_pow(self, pipe):
|
||||
"""find partial hash colision generating nonce for a block"""
|
||||
nonce = BLOCK_NONCE_START_INT
|
||||
data = self.data
|
||||
metadata = self.metadata
|
||||
puzzle = self.puzzle
|
||||
difficulty = self.difficulty
|
||||
while True:
|
||||
# Break if shutdown received
|
||||
if pipe.poll() and pipe.recv() == 'shutdown':
|
||||
break
|
||||
# Load nonce into block metadata
|
||||
metadata['pow'] = nonce
|
||||
# Serialize metadata, combine with block data
|
||||
payload = json.dumps(metadata).encode() + b'\n' + data
|
||||
# Check sha3_256 hash of block, compare to puzzle
|
||||
# Send payload if puzzle finished
|
||||
token = crypto.hashers.sha3_hash(payload)
|
||||
# ensure token is string
|
||||
token = bytesconverter.bytes_to_str(token)
|
||||
if puzzle == token[0:difficulty]:
|
||||
pipe.send(payload)
|
||||
break
|
||||
nonce += 1</code></pre>
|
||||
</details>
|
||||
</section>
|
||||
<section>
|
||||
</section>
|
||||
<section>
|
||||
</section>
|
||||
<section>
|
||||
</section>
|
||||
<section>
|
||||
<h2 class="section-title" id="header-classes">Classes</h2>
|
||||
<dl>
|
||||
<dt id="src.onionrproofs.subprocesspow.SubprocessPOW"><code class="flex name class">
|
||||
<span>class <span class="ident">SubprocessPOW</span></span>
|
||||
<span>(</span><span>data, metadata, subproc_count=None)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>Onionr proof of work using multiple processes
|
||||
Accepts block data, block metadata
|
||||
if subproc_count is not set,
|
||||
os.cpu_count() is used to determine the number of processes</p>
|
||||
<p>Due to Python GIL multiprocessing/use of external libraries
|
||||
is necessary to accelerate CPU bound tasks</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">class SubprocessPOW:
|
||||
def __init__(self, data, metadata, subproc_count=None):
|
||||
"""
|
||||
Onionr proof of work using multiple processes
|
||||
Accepts block data, block metadata
|
||||
if subproc_count is not set,
|
||||
os.cpu_count() is used to determine the number of processes
|
||||
|
||||
Due to Python GIL multiprocessing/use of external libraries
|
||||
is necessary to accelerate CPU bound tasks
|
||||
"""
|
||||
# No known benefit to using more processes than there are cores.
|
||||
# Note: os.cpu_count perhaps not always accurate
|
||||
if subproc_count is None:
|
||||
subproc_count = os.cpu_count()
|
||||
self.subproc_count = subproc_count
|
||||
self.result = ''
|
||||
self.shutdown = False
|
||||
self.data = data
|
||||
self.metadata = metadata
|
||||
|
||||
"""dump dict to measure bytes of json metadata
|
||||
Cannot reuse later bc the pow token must be added
|
||||
"""
|
||||
json_metadata = json.dumps(metadata).encode()
|
||||
|
||||
self.data = bytesconverter.str_to_bytes(data)
|
||||
|
||||
compiled_data = bytes(json_metadata + b'\n' + self.data)
|
||||
|
||||
# Calculate difficulty. May use better algorithm in the future.
|
||||
self.difficulty = onionrproofs.getDifficultyForNewBlock(compiled_data)
|
||||
|
||||
logger.info('Computing POW (difficulty: %s)...' % (self.difficulty,))
|
||||
|
||||
self.main_hash = '0' * 64
|
||||
self.puzzle = self.main_hash[0:min(self.difficulty,
|
||||
len(self.main_hash))]
|
||||
self.shutdown = False
|
||||
self.payload = None
|
||||
|
||||
def start(self):
|
||||
"""spawn the multiproc handler threads"""
|
||||
# Create a new thread for each subprocess
|
||||
for _ in range(self.subproc_count): # noqa
|
||||
threading.Thread(target=self._spawn_proc, daemon=True).start()
|
||||
# Monitor the processes for a payload, shut them down when its found
|
||||
while True:
|
||||
if self.payload is None:
|
||||
time.sleep(0.1)
|
||||
else:
|
||||
self.shutdown = True
|
||||
return self.payload
|
||||
|
||||
def _spawn_proc(self):
|
||||
"""Create a child proof of work process
|
||||
wait for data and send shutdown signal when its found"""
|
||||
parent_conn, child_conn = Pipe()
|
||||
p = Process(target=self.do_pow, args=(child_conn,), daemon=True)
|
||||
p.start()
|
||||
p.join()
|
||||
payload = None
|
||||
try:
|
||||
while True:
|
||||
data = parent_conn.recv()
|
||||
if len(data) >= 1:
|
||||
payload = data
|
||||
break
|
||||
except KeyboardInterrupt:
|
||||
pass
|
||||
finally:
|
||||
parent_conn.send('shutdown')
|
||||
self.payload = payload
|
||||
|
||||
def do_pow(self, pipe):
|
||||
"""find partial hash colision generating nonce for a block"""
|
||||
nonce = BLOCK_NONCE_START_INT
|
||||
data = self.data
|
||||
metadata = self.metadata
|
||||
puzzle = self.puzzle
|
||||
difficulty = self.difficulty
|
||||
while True:
|
||||
# Break if shutdown received
|
||||
if pipe.poll() and pipe.recv() == 'shutdown':
|
||||
break
|
||||
# Load nonce into block metadata
|
||||
metadata['pow'] = nonce
|
||||
# Serialize metadata, combine with block data
|
||||
payload = json.dumps(metadata).encode() + b'\n' + data
|
||||
# Check sha3_256 hash of block, compare to puzzle
|
||||
# Send payload if puzzle finished
|
||||
token = crypto.hashers.sha3_hash(payload)
|
||||
# ensure token is string
|
||||
token = bytesconverter.bytes_to_str(token)
|
||||
if puzzle == token[0:difficulty]:
|
||||
pipe.send(payload)
|
||||
break
|
||||
nonce += 1</code></pre>
|
||||
</details>
|
||||
<h3>Instance variables</h3>
|
||||
<dl>
|
||||
<dt id="src.onionrproofs.subprocesspow.SubprocessPOW.metadata"><code class="name">var <span class="ident">metadata</span></code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>dump dict to measure bytes of json metadata
|
||||
Cannot reuse later bc the pow token must be added</p></section>
|
||||
</dd>
|
||||
</dl>
|
||||
<h3>Methods</h3>
|
||||
<dl>
|
||||
<dt id="src.onionrproofs.subprocesspow.SubprocessPOW.do_pow"><code class="name flex">
|
||||
<span>def <span class="ident">do_pow</span></span>(<span>self, pipe)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>find partial hash colision generating nonce for a block</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def do_pow(self, pipe):
|
||||
"""find partial hash colision generating nonce for a block"""
|
||||
nonce = BLOCK_NONCE_START_INT
|
||||
data = self.data
|
||||
metadata = self.metadata
|
||||
puzzle = self.puzzle
|
||||
difficulty = self.difficulty
|
||||
while True:
|
||||
# Break if shutdown received
|
||||
if pipe.poll() and pipe.recv() == 'shutdown':
|
||||
break
|
||||
# Load nonce into block metadata
|
||||
metadata['pow'] = nonce
|
||||
# Serialize metadata, combine with block data
|
||||
payload = json.dumps(metadata).encode() + b'\n' + data
|
||||
# Check sha3_256 hash of block, compare to puzzle
|
||||
# Send payload if puzzle finished
|
||||
token = crypto.hashers.sha3_hash(payload)
|
||||
# ensure token is string
|
||||
token = bytesconverter.bytes_to_str(token)
|
||||
if puzzle == token[0:difficulty]:
|
||||
pipe.send(payload)
|
||||
break
|
||||
nonce += 1</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
<dt id="src.onionrproofs.subprocesspow.SubprocessPOW.start"><code class="name flex">
|
||||
<span>def <span class="ident">start</span></span>(<span>self)</span>
|
||||
</code></dt>
|
||||
<dd>
|
||||
<section class="desc"><p>spawn the multiproc handler threads</p></section>
|
||||
<details class="source">
|
||||
<summary>
|
||||
<span>Expand source code</span>
|
||||
</summary>
|
||||
<pre><code class="python">def start(self):
|
||||
"""spawn the multiproc handler threads"""
|
||||
# Create a new thread for each subprocess
|
||||
for _ in range(self.subproc_count): # noqa
|
||||
threading.Thread(target=self._spawn_proc, daemon=True).start()
|
||||
# Monitor the processes for a payload, shut them down when its found
|
||||
while True:
|
||||
if self.payload is None:
|
||||
time.sleep(0.1)
|
||||
else:
|
||||
self.shutdown = True
|
||||
return self.payload</code></pre>
|
||||
</details>
|
||||
</dd>
|
||||
</dl>
|
||||
</dd>
|
||||
</dl>
|
||||
</section>
|
||||
</article>
|
||||
<nav id="sidebar">
|
||||
<h1>Index</h1>
|
||||
<div class="toc">
|
||||
<ul></ul>
|
||||
</div>
|
||||
<ul id="index">
|
||||
<li><h3>Super-module</h3>
|
||||
<ul>
|
||||
<li><code><a title="src.onionrproofs" href="index.html">src.onionrproofs</a></code></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li><h3><a href="#header-classes">Classes</a></h3>
|
||||
<ul>
|
||||
<li>
|
||||
<h4><code><a title="src.onionrproofs.subprocesspow.SubprocessPOW" href="#src.onionrproofs.subprocesspow.SubprocessPOW">SubprocessPOW</a></code></h4>
|
||||
<ul class="">
|
||||
<li><code><a title="src.onionrproofs.subprocesspow.SubprocessPOW.do_pow" href="#src.onionrproofs.subprocesspow.SubprocessPOW.do_pow">do_pow</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.subprocesspow.SubprocessPOW.metadata" href="#src.onionrproofs.subprocesspow.SubprocessPOW.metadata">metadata</a></code></li>
|
||||
<li><code><a title="src.onionrproofs.subprocesspow.SubprocessPOW.start" href="#src.onionrproofs.subprocesspow.SubprocessPOW.start">start</a></code></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
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|
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