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<header>
<h1 class="title">Module <code>src.onionrblocks.onionrblacklist</code></h1>
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</header>
<section id="section-intro">
<p>Onionr - Private P2P Communication.</p>
<p>Handle maintenance of a blacklist database, for blocks and peers</p>
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<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">&#34;&#34;&#34;Onionr - Private P2P Communication.
Handle maintenance of a blacklist database, for blocks and peers
&#34;&#34;&#34;
import sqlite3
import os
from onionrplugins.onionrevents import event
import onionrcrypto
from onionrutils import epoch, bytesconverter
from coredb import dbfiles
&#34;&#34;&#34;
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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 &lt;https://www.gnu.org/licenses/&gt;.
&#34;&#34;&#34;
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class OnionrBlackList:
def __init__(self):
self.blacklistDB = dbfiles.blacklist_db
if not os.path.exists(dbfiles.blacklist_db):
self.generateDB()
return
def inBlacklist(self, data):
hashed = bytesconverter.bytes_to_str(onionrcrypto.hashers.sha3_hash(data))
retData = False
if not hashed.isalnum():
raise Exception(&#34;Hashed data is not alpha numeric&#34;)
if len(hashed) &gt; 64:
raise Exception(&#34;Hashed data is too large&#34;)
for i in self._dbExecute(&#34;SELECT * FROM blacklist WHERE hash = ?&#34;, (hashed,)):
retData = True # this only executes if an entry is present by that hash
break
return retData
def _dbExecute(self, toExec, params = ()):
conn = sqlite3.connect(self.blacklistDB)
c = conn.cursor()
retData = c.execute(toExec, params)
conn.commit()
return retData
def deleteBeforeDate(self, date):
# TODO, delete blacklist entries before date
return
def deleteExpired(self, dataType=0):
&#34;&#34;&#34;Delete expired entries&#34;&#34;&#34;
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deleteList = []
curTime = epoch.get_epoch()
try:
int(dataType)
except AttributeError:
raise TypeError(&#34;dataType must be int&#34;)
for i in self._dbExecute(&#39;SELECT * FROM blacklist WHERE dataType = ?&#39;, (dataType,)):
if i[1] == dataType:
if (curTime - i[2]) &gt;= i[3]:
deleteList.append(i[0])
for thing in deleteList:
self._dbExecute(&#34;DELETE FROM blacklist WHERE hash = ?&#34;, (thing,))
def generateDB(self):
return
def clearDB(self):
self._dbExecute(&#34;&#34;&#34;DELETE FROM blacklist;&#34;&#34;&#34;)
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def getList(self):
data = self._dbExecute(&#39;SELECT * FROM blacklist&#39;)
myList = []
for i in data:
myList.append(i[0])
return myList
def addToDB(self, data, dataType=0, expire=0):
&#34;&#34;&#34;Add to the blacklist. Intended to be block hash, block data, peers, or transport addresses
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0=block
1=peer
2=pubkey
&#34;&#34;&#34;
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# we hash the data so we can remove data entirely from our node&#39;s disk
hashed = bytesconverter.bytes_to_str(onionrcrypto.hashers.sha3_hash(data))
event(&#39;blacklist_add&#39;, data={&#39;data&#39;: data, &#39;hash&#39;: hashed})
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if len(hashed) &gt; 64:
raise Exception(&#34;Hashed data is too large&#34;)
if not hashed.isalnum():
raise Exception(&#34;Hashed data is not alpha numeric&#34;)
try:
int(dataType)
except ValueError:
raise Exception(&#34;dataType is not int&#34;)
try:
int(expire)
except ValueError:
raise Exception(&#34;expire is not int&#34;)
if self.inBlacklist(hashed):
return
insert = (hashed,)
blacklistDate = epoch.get_epoch()
try:
self._dbExecute(&#34;INSERT INTO blacklist (hash, dataType, blacklistDate, expire) VALUES(?, ?, ?, ?);&#34;, (str(hashed), dataType, blacklistDate, expire))
except sqlite3.IntegrityError:
pass</code></pre>
</details>
</section>
<section>
</section>
<section>
</section>
<section>
</section>
<section>
<h2 class="section-title" id="header-classes">Classes</h2>
<dl>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList"><code class="flex name class">
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<span>class <span class="ident">OnionrBlackList</span></span>
</code></dt>
<dd>
<section class="desc"></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">class OnionrBlackList:
def __init__(self):
self.blacklistDB = dbfiles.blacklist_db
if not os.path.exists(dbfiles.blacklist_db):
self.generateDB()
return
def inBlacklist(self, data):
hashed = bytesconverter.bytes_to_str(onionrcrypto.hashers.sha3_hash(data))
retData = False
if not hashed.isalnum():
raise Exception(&#34;Hashed data is not alpha numeric&#34;)
if len(hashed) &gt; 64:
raise Exception(&#34;Hashed data is too large&#34;)
for i in self._dbExecute(&#34;SELECT * FROM blacklist WHERE hash = ?&#34;, (hashed,)):
retData = True # this only executes if an entry is present by that hash
break
return retData
def _dbExecute(self, toExec, params = ()):
conn = sqlite3.connect(self.blacklistDB)
c = conn.cursor()
retData = c.execute(toExec, params)
conn.commit()
return retData
def deleteBeforeDate(self, date):
# TODO, delete blacklist entries before date
return
def deleteExpired(self, dataType=0):
&#34;&#34;&#34;Delete expired entries&#34;&#34;&#34;
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deleteList = []
curTime = epoch.get_epoch()
try:
int(dataType)
except AttributeError:
raise TypeError(&#34;dataType must be int&#34;)
for i in self._dbExecute(&#39;SELECT * FROM blacklist WHERE dataType = ?&#39;, (dataType,)):
if i[1] == dataType:
if (curTime - i[2]) &gt;= i[3]:
deleteList.append(i[0])
for thing in deleteList:
self._dbExecute(&#34;DELETE FROM blacklist WHERE hash = ?&#34;, (thing,))
def generateDB(self):
return
def clearDB(self):
self._dbExecute(&#34;&#34;&#34;DELETE FROM blacklist;&#34;&#34;&#34;)
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def getList(self):
data = self._dbExecute(&#39;SELECT * FROM blacklist&#39;)
myList = []
for i in data:
myList.append(i[0])
return myList
def addToDB(self, data, dataType=0, expire=0):
&#34;&#34;&#34;Add to the blacklist. Intended to be block hash, block data, peers, or transport addresses
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0=block
1=peer
2=pubkey
&#34;&#34;&#34;
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# we hash the data so we can remove data entirely from our node&#39;s disk
hashed = bytesconverter.bytes_to_str(onionrcrypto.hashers.sha3_hash(data))
event(&#39;blacklist_add&#39;, data={&#39;data&#39;: data, &#39;hash&#39;: hashed})
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if len(hashed) &gt; 64:
raise Exception(&#34;Hashed data is too large&#34;)
if not hashed.isalnum():
raise Exception(&#34;Hashed data is not alpha numeric&#34;)
try:
int(dataType)
except ValueError:
raise Exception(&#34;dataType is not int&#34;)
try:
int(expire)
except ValueError:
raise Exception(&#34;expire is not int&#34;)
if self.inBlacklist(hashed):
return
insert = (hashed,)
blacklistDate = epoch.get_epoch()
try:
self._dbExecute(&#34;INSERT INTO blacklist (hash, dataType, blacklistDate, expire) VALUES(?, ?, ?, ?);&#34;, (str(hashed), dataType, blacklistDate, expire))
except sqlite3.IntegrityError:
pass</code></pre>
</details>
<h3>Methods</h3>
<dl>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.addToDB"><code class="name flex">
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<span>def <span class="ident">addToDB</span></span>(<span>self, data, dataType=0, expire=0)</span>
</code></dt>
<dd>
<section class="desc"><p>Add to the blacklist. Intended to be block hash, block data, peers, or transport addresses
0=block
1=peer
2=pubkey</p></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def addToDB(self, data, dataType=0, expire=0):
&#34;&#34;&#34;Add to the blacklist. Intended to be block hash, block data, peers, or transport addresses
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0=block
1=peer
2=pubkey
&#34;&#34;&#34;
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# we hash the data so we can remove data entirely from our node&#39;s disk
hashed = bytesconverter.bytes_to_str(onionrcrypto.hashers.sha3_hash(data))
event(&#39;blacklist_add&#39;, data={&#39;data&#39;: data, &#39;hash&#39;: hashed})
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if len(hashed) &gt; 64:
raise Exception(&#34;Hashed data is too large&#34;)
if not hashed.isalnum():
raise Exception(&#34;Hashed data is not alpha numeric&#34;)
try:
int(dataType)
except ValueError:
raise Exception(&#34;dataType is not int&#34;)
try:
int(expire)
except ValueError:
raise Exception(&#34;expire is not int&#34;)
if self.inBlacklist(hashed):
return
insert = (hashed,)
blacklistDate = epoch.get_epoch()
try:
self._dbExecute(&#34;INSERT INTO blacklist (hash, dataType, blacklistDate, expire) VALUES(?, ?, ?, ?);&#34;, (str(hashed), dataType, blacklistDate, expire))
except sqlite3.IntegrityError:
pass</code></pre>
</details>
</dd>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.clearDB"><code class="name flex">
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<span>def <span class="ident">clearDB</span></span>(<span>self)</span>
</code></dt>
<dd>
<section class="desc"></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def clearDB(self):
self._dbExecute(&#34;&#34;&#34;DELETE FROM blacklist;&#34;&#34;&#34;)</code></pre>
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</details>
</dd>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.deleteBeforeDate"><code class="name flex">
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<span>def <span class="ident">deleteBeforeDate</span></span>(<span>self, date)</span>
</code></dt>
<dd>
<section class="desc"></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def deleteBeforeDate(self, date):
# TODO, delete blacklist entries before date
return</code></pre>
</details>
</dd>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.deleteExpired"><code class="name flex">
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<span>def <span class="ident">deleteExpired</span></span>(<span>self, dataType=0)</span>
</code></dt>
<dd>
<section class="desc"><p>Delete expired entries</p></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def deleteExpired(self, dataType=0):
&#34;&#34;&#34;Delete expired entries&#34;&#34;&#34;
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deleteList = []
curTime = epoch.get_epoch()
try:
int(dataType)
except AttributeError:
raise TypeError(&#34;dataType must be int&#34;)
for i in self._dbExecute(&#39;SELECT * FROM blacklist WHERE dataType = ?&#39;, (dataType,)):
if i[1] == dataType:
if (curTime - i[2]) &gt;= i[3]:
deleteList.append(i[0])
for thing in deleteList:
self._dbExecute(&#34;DELETE FROM blacklist WHERE hash = ?&#34;, (thing,))</code></pre>
</details>
</dd>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.generateDB"><code class="name flex">
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<span>def <span class="ident">generateDB</span></span>(<span>self)</span>
</code></dt>
<dd>
<section class="desc"></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def generateDB(self):
return</code></pre>
</details>
</dd>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.getList"><code class="name flex">
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<span>def <span class="ident">getList</span></span>(<span>self)</span>
</code></dt>
<dd>
<section class="desc"></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def getList(self):
data = self._dbExecute(&#39;SELECT * FROM blacklist&#39;)
myList = []
for i in data:
myList.append(i[0])
return myList</code></pre>
</details>
</dd>
<dt id="src.onionrblocks.onionrblacklist.OnionrBlackList.inBlacklist"><code class="name flex">
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<span>def <span class="ident">inBlacklist</span></span>(<span>self, data)</span>
</code></dt>
<dd>
<section class="desc"></section>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
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<pre><code class="python">def inBlacklist(self, data):
hashed = bytesconverter.bytes_to_str(onionrcrypto.hashers.sha3_hash(data))
retData = False
if not hashed.isalnum():
raise Exception(&#34;Hashed data is not alpha numeric&#34;)
if len(hashed) &gt; 64:
raise Exception(&#34;Hashed data is too large&#34;)
for i in self._dbExecute(&#34;SELECT * FROM blacklist WHERE hash = ?&#34;, (hashed,)):
retData = True # this only executes if an entry is present by that hash
break
return retData</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.onionrblocks" href="index.html">src.onionrblocks</a></code></li>
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</ul>
</li>
<li><h3><a href="#header-classes">Classes</a></h3>
<ul>
<li>
<h4><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList" href="#src.onionrblocks.onionrblacklist.OnionrBlackList">OnionrBlackList</a></code></h4>
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<ul class="two-column">
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.addToDB" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.addToDB">addToDB</a></code></li>
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.clearDB" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.clearDB">clearDB</a></code></li>
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.deleteBeforeDate" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.deleteBeforeDate">deleteBeforeDate</a></code></li>
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.deleteExpired" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.deleteExpired">deleteExpired</a></code></li>
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.generateDB" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.generateDB">generateDB</a></code></li>
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.getList" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.getList">getList</a></code></li>
<li><code><a title="src.onionrblocks.onionrblacklist.OnionrBlackList.inBlacklist" href="#src.onionrblocks.onionrblacklist.OnionrBlackList.inBlacklist">inBlacklist</a></code></li>
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</li>
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</li>
</ul>
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