847 lines
34 KiB
HTML
847 lines
34 KiB
HTML
<!doctype html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" />
|
|
<meta name="generator" content="pdoc 0.6.3" />
|
|
<title>onionr.onionrproofs API documentation</title>
|
|
<meta name="description" content="Onionr - Private P2P Communication …" />
|
|
<link href='https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.0/normalize.min.css' rel='stylesheet'>
|
|
<link href='https://cdnjs.cloudflare.com/ajax/libs/10up-sanitize.css/8.0.0/sanitize.min.css' rel='stylesheet'>
|
|
<link href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/github.min.css" rel="stylesheet">
|
|
<style>.flex{display:flex !important}body{line-height:1.5em}#content{padding:20px}#sidebar{padding:30px;overflow:hidden}.http-server-breadcrumbs{font-size:130%;margin:0 0 15px 0}#footer{font-size:.75em;padding:5px 30px;border-top:1px solid #ddd;text-align:right}#footer p{margin:0 0 0 1em;display:inline-block}#footer p:last-child{margin-right:30px}h1,h2,h3,h4,h5{font-weight:300}h1{font-size:2.5em;line-height:1.1em}h2{font-size:1.75em;margin:1em 0 .50em 0}h3{font-size:1.4em;margin:25px 0 10px 0}h4{margin:0;font-size:105%}a{color:#058;text-decoration:none;transition:color .3s ease-in-out}a:hover{color:#e82}.title code{font-weight:bold}h2[id^="header-"]{margin-top:2em}.ident{color:#900}pre code{background:#f8f8f8;font-size:.8em;line-height:1.4em}code{background:#f2f2f1;padding:1px 4px;overflow-wrap:break-word}h1 code{background:transparent}pre{background:#f8f8f8;border:0;border-top:1px solid #ccc;border-bottom:1px solid #ccc;margin:1em 0;padding:1ex}#http-server-module-list{display:flex;flex-flow:column}#http-server-module-list div{display:flex}#http-server-module-list dt{min-width:10%}#http-server-module-list p{margin-top:0}.toc ul,#index{list-style-type:none;margin:0;padding:0}#index code{background:transparent}#index h3{border-bottom:1px solid #ddd}#index ul{padding:0}#index h4{font-weight:bold}#index h4 + ul{margin-bottom:.6em}@media (min-width:200ex){#index .two-column{column-count:2}}@media (min-width:300ex){#index .two-column{column-count:3}}dl{margin-bottom:2em}dl dl:last-child{margin-bottom:4em}dd{margin:0 0 1em 3em}#header-classes + dl > dd{margin-bottom:3em}dd dd{margin-left:2em}dd p{margin:10px 0}.name{background:#eee;font-weight:bold;font-size:.85em;padding:5px 10px;display:inline-block;min-width:40%}.name:hover{background:#e0e0e0}.name > span:first-child{white-space:nowrap}.name.class > span:nth-child(2){margin-left:.4em}.inherited{color:#999;border-left:5px solid #eee;padding-left:1em}.inheritance em{font-style:normal;font-weight:bold}.desc h2{font-weight:400;font-size:1.25em}.desc h3{font-size:1em}.desc dt code{background:inherit}.source summary{color:#666;text-align:right;font-weight:400;font-size:.8em;text-transform:uppercase;cursor:pointer}.source pre{max-height:500px;overflow:auto;margin:0}.source pre code{font-size:12px;overflow:visible}.hlist{list-style:none}.hlist li{display:inline}.hlist li:after{content:',\2002'}.hlist li:last-child:after{content:none}.hlist .hlist{display:inline;padding-left:1em}img{max-width:100%}.admonition{padding:.1em .5em;margin-bottom:1em}.admonition-title{font-weight:bold}.admonition.note,.admonition.info,.admonition.important{background:#aef}.admonition.todo,.admonition.versionadded,.admonition.tip,.admonition.hint{background:#dfd}.admonition.warning,.admonition.versionchanged,.admonition.deprecated{background:#fd4}.admonition.error,.admonition.danger,.admonition.caution{background:lightpink}</style>
|
|
<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>onionr.onionrproofs</code></h1>
|
|
</header>
|
|
<section id="section-intro">
|
|
<p>Onionr - Private P2P Communication</p>
|
|
<p>Proof of work module</p>
|
|
<details class="source">
|
|
<summary>Source code</summary>
|
|
<pre><code class="python">'''
|
|
Onionr - Private P2P Communication
|
|
|
|
Proof of work module
|
|
'''
|
|
'''
|
|
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/>.
|
|
'''
|
|
import multiprocessing, time, math, threading, binascii, sys, json
|
|
import nacl.encoding, nacl.hash, nacl.utils
|
|
|
|
import config, logger
|
|
from onionrblocks import onionrblockapi, storagecounter
|
|
from onionrutils import bytesconverter
|
|
from onionrcrypto import hashers
|
|
config.reload()
|
|
|
|
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
|
|
|
|
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
|
|
|
|
def getHashDifficulty(h: str):
|
|
'''
|
|
Return the amount of leading zeroes in a hex hash string (hexHash)
|
|
'''
|
|
return len(h) - len(h.lstrip('0'))
|
|
|
|
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
|
|
|
|
class DataPOW:
|
|
def __init__(self, data, minDifficulty = 0, threadCount = 1):
|
|
self.data = data
|
|
self.threadCount = threadCount
|
|
self.difficulty = max(minDifficulty, getDifficultyForNewBlock(data))
|
|
self.rounds = 0
|
|
self.hashing = False
|
|
self.foundHash = False
|
|
|
|
try:
|
|
self.data = self.data.encode()
|
|
except AttributeError:
|
|
pass
|
|
|
|
self.data = nacl.hash.blake2b(self.data)
|
|
|
|
logger.info('Computing POW (difficulty: %s)...' % self.difficulty)
|
|
|
|
self.mainHash = '0' * 70
|
|
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
|
|
|
|
while self.hashing:
|
|
rand = nacl.utils.random()
|
|
token = nacl.hash.blake2b(rand + self.data).decode()
|
|
self.rounds += 1
|
|
#print(token)
|
|
if self.puzzle == token[0:self.difficulty]:
|
|
self.hashing = False
|
|
iFound = True
|
|
break
|
|
|
|
if iFound:
|
|
endTime = math.floor(time.time())
|
|
if self.reporting:
|
|
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)
|
|
logger.debug('Round count: %s' % (self.rounds,))
|
|
self.result = (token, rand)
|
|
|
|
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
|
|
|
|
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 = int(binascii.hexlify(nacl.utils.random(64)), 16)
|
|
while self.hashing:
|
|
#token = nacl.hash.blake2b(rand + self.data).decode()
|
|
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>
|
|
</section>
|
|
<section>
|
|
<h2 class="section-title" id="header-submodules">Sub-modules</h2>
|
|
<dl>
|
|
<dt><code class="name"><a title="onionr.onionrproofs.subprocesspow" href="subprocesspow.html">onionr.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="onionr.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>Source code</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="onionr.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>Source code</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="onionr.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>Source code</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="onionr.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>Source code</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="onionr.onionrproofs.DataPOW"><code class="flex name class">
|
|
<span>class <span class="ident">DataPOW</span></span>
|
|
<span>(</span><span>data, minDifficulty=0, threadCount=1)</span>
|
|
</code></dt>
|
|
<dd>
|
|
<section class="desc"></section>
|
|
<details class="source">
|
|
<summary>Source code</summary>
|
|
<pre><code class="python">class DataPOW:
|
|
def __init__(self, data, minDifficulty = 0, threadCount = 1):
|
|
self.data = data
|
|
self.threadCount = threadCount
|
|
self.difficulty = max(minDifficulty, getDifficultyForNewBlock(data))
|
|
self.rounds = 0
|
|
self.hashing = False
|
|
self.foundHash = False
|
|
|
|
try:
|
|
self.data = self.data.encode()
|
|
except AttributeError:
|
|
pass
|
|
|
|
self.data = nacl.hash.blake2b(self.data)
|
|
|
|
logger.info('Computing POW (difficulty: %s)...' % self.difficulty)
|
|
|
|
self.mainHash = '0' * 70
|
|
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
|
|
|
|
while self.hashing:
|
|
rand = nacl.utils.random()
|
|
token = nacl.hash.blake2b(rand + self.data).decode()
|
|
self.rounds += 1
|
|
#print(token)
|
|
if self.puzzle == token[0:self.difficulty]:
|
|
self.hashing = False
|
|
iFound = True
|
|
break
|
|
|
|
if iFound:
|
|
endTime = math.floor(time.time())
|
|
if self.reporting:
|
|
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)
|
|
logger.debug('Round count: %s' % (self.rounds,))
|
|
self.result = (token, rand)
|
|
|
|
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="onionr.onionrproofs.DataPOW.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>Source code</summary>
|
|
<pre><code class="python">def changeDifficulty(self, newDiff):
|
|
self.difficulty = newDiff</code></pre>
|
|
</details>
|
|
</dd>
|
|
<dt id="onionr.onionrproofs.DataPOW.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>Source code</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="onionr.onionrproofs.DataPOW.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>Source code</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
|
|
|
|
while self.hashing:
|
|
rand = nacl.utils.random()
|
|
token = nacl.hash.blake2b(rand + self.data).decode()
|
|
self.rounds += 1
|
|
#print(token)
|
|
if self.puzzle == token[0:self.difficulty]:
|
|
self.hashing = False
|
|
iFound = True
|
|
break
|
|
|
|
if iFound:
|
|
endTime = math.floor(time.time())
|
|
if self.reporting:
|
|
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)
|
|
logger.debug('Round count: %s' % (self.rounds,))
|
|
self.result = (token, rand)</code></pre>
|
|
</details>
|
|
</dd>
|
|
<dt id="onionr.onionrproofs.DataPOW.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>Source code</summary>
|
|
<pre><code class="python">def shutdown(self):
|
|
self.hashing = False
|
|
self.puzzle = ''</code></pre>
|
|
</details>
|
|
</dd>
|
|
<dt id="onionr.onionrproofs.DataPOW.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>Source code</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>
|
|
<dt id="onionr.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>Source code</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 = int(binascii.hexlify(nacl.utils.random(64)), 16)
|
|
while self.hashing:
|
|
#token = nacl.hash.blake2b(rand + self.data).decode()
|
|
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="onionr.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>Source code</summary>
|
|
<pre><code class="python">def changeDifficulty(self, newDiff):
|
|
self.difficulty = newDiff</code></pre>
|
|
</details>
|
|
</dd>
|
|
<dt id="onionr.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>Source code</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="onionr.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>Source code</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 = int(binascii.hexlify(nacl.utils.random(64)), 16)
|
|
while self.hashing:
|
|
#token = nacl.hash.blake2b(rand + self.data).decode()
|
|
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="onionr.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>Source code</summary>
|
|
<pre><code class="python">def shutdown(self):
|
|
self.hashing = False
|
|
self.puzzle = ''</code></pre>
|
|
</details>
|
|
</dd>
|
|
<dt id="onionr.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>Source code</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="onionr" href="../index.html">onionr</a></code></li>
|
|
</ul>
|
|
</li>
|
|
<li><h3><a href="#header-submodules">Sub-modules</a></h3>
|
|
<ul>
|
|
<li><code><a title="onionr.onionrproofs.subprocesspow" href="subprocesspow.html">onionr.onionrproofs.subprocesspow</a></code></li>
|
|
</ul>
|
|
</li>
|
|
<li><h3><a href="#header-functions">Functions</a></h3>
|
|
<ul class="">
|
|
<li><code><a title="onionr.onionrproofs.getDifficultyForNewBlock" href="#onionr.onionrproofs.getDifficultyForNewBlock">getDifficultyForNewBlock</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.getDifficultyModifier" href="#onionr.onionrproofs.getDifficultyModifier">getDifficultyModifier</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.getHashDifficulty" href="#onionr.onionrproofs.getHashDifficulty">getHashDifficulty</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.hashMeetsDifficulty" href="#onionr.onionrproofs.hashMeetsDifficulty">hashMeetsDifficulty</a></code></li>
|
|
</ul>
|
|
</li>
|
|
<li><h3><a href="#header-classes">Classes</a></h3>
|
|
<ul>
|
|
<li>
|
|
<h4><code><a title="onionr.onionrproofs.DataPOW" href="#onionr.onionrproofs.DataPOW">DataPOW</a></code></h4>
|
|
<ul class="">
|
|
<li><code><a title="onionr.onionrproofs.DataPOW.changeDifficulty" href="#onionr.onionrproofs.DataPOW.changeDifficulty">changeDifficulty</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.DataPOW.getResult" href="#onionr.onionrproofs.DataPOW.getResult">getResult</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.DataPOW.pow" href="#onionr.onionrproofs.DataPOW.pow">pow</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.DataPOW.shutdown" href="#onionr.onionrproofs.DataPOW.shutdown">shutdown</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.DataPOW.waitForResult" href="#onionr.onionrproofs.DataPOW.waitForResult">waitForResult</a></code></li>
|
|
</ul>
|
|
</li>
|
|
<li>
|
|
<h4><code><a title="onionr.onionrproofs.POW" href="#onionr.onionrproofs.POW">POW</a></code></h4>
|
|
<ul class="">
|
|
<li><code><a title="onionr.onionrproofs.POW.changeDifficulty" href="#onionr.onionrproofs.POW.changeDifficulty">changeDifficulty</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.POW.getResult" href="#onionr.onionrproofs.POW.getResult">getResult</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.POW.pow" href="#onionr.onionrproofs.POW.pow">pow</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.POW.shutdown" href="#onionr.onionrproofs.POW.shutdown">shutdown</a></code></li>
|
|
<li><code><a title="onionr.onionrproofs.POW.waitForResult" href="#onionr.onionrproofs.POW.waitForResult">waitForResult</a></code></li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</nav>
|
|
</main>
|
|
<footer id="footer">
|
|
<p>Generated by <a href="https://pdoc3.github.io/pdoc"><cite>pdoc</cite> 0.6.3</a>.</p>
|
|
</footer>
|
|
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/highlight.min.js"></script>
|
|
<script>hljs.initHighlightingOnLoad()</script>
|
|
</body>
|
|
</html> |