Modified file for BSD Cafe Fork
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1 changed files with 63 additions and 48 deletions
111
checkmyip.py
111
checkmyip.py
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@ -1,10 +1,11 @@
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#!/usr/bin/python
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#!/usr/local/bin/python3.9
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##### CheckMyIP Server #####
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##### Written by John W Kerns #####
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##### http://blog.packetsar.com #####
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##### https://github.com/packetsar/checkmyip #####
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##### BSD Cafe CheckMyIP Server #####
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##### Originally written by John W Kerns #####
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##### http://blog.packetsar.com #####
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##### Forked to BSD Cafe by Stefano Marinelli #####
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##### https://brew.bsd.cafe/BSDCafe/checkmyip #####
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##### Inform version here #####
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@ -37,18 +38,18 @@ j2send = """{
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"port": "{{ port }}",
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"protocol": "{{ proto }}",
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"version": "%s",
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"website": "https://github.com/packetsar/checkmyip",
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"sponsor": "Sponsored by ConvergeOne, https://www.convergeone.com/"
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"website": "https://brew.bsd.cafe/BSDCafe/checkmyip",
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"sponsor": "Served by BSD Cafe, https://bsd.cafe/"
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}""" % version
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##### Handles all prnting to console and logging to the logfile #####
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class log_management:
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def __init__(self):
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self.logpath = "/etc/checkmyip/" # Log file directory path
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self.logfile = "/etc/checkmyip/%scheckmyip.log" % \
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self.logpath = "/var/log/checkmyip/" # Log file directory path
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self.logfile = "/var/log/checkmyip/%scheckmyip.log" % \
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time.strftime("%Y-%m-%d_") # Log file full path
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self.paramikolog = "/etc/checkmyip/%sssh.log" % \
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self.paramikolog = "/var/log/checkmyip/%sssh.log" % \
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time.strftime("%Y-%m-%d_") # SSH log file path
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self.thread = threading.Thread(target=self._change_logfiles)
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self.thread.daemon = True
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@ -89,9 +90,9 @@ class log_management:
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def _change_logfiles(self, thread=True):
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while True:
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time.sleep(10)
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self.logfile = "/etc/checkmyip/%scheckmyip.log" % \
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self.logfile = "/var/log/checkmyip/%scheckmyip.log" % \
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time.strftime("%Y-%m-%d_") # Log file full path
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self.paramikolog = "/etc/checkmyip/%sssh.log" % \
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self.paramikolog = "/var/log/checkmyip/%sssh.log" % \
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time.strftime("%Y-%m-%d_") # SSH log file path
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paramiko.util.log_to_file(self.paramikolog)
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@ -148,14 +149,14 @@ def j2format(j2tmp, valdict):
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##### Cleans IP addresses coming from socket library #####
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def cleanip(addr):
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ip = addr[0]
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port = addr[1]
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family = "ipv6"
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if len(ip) > 6: # If this IP is not a super short v6 address
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if ip[:7] == "::ffff:": # If this is a prefixed IPv4 address
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ip = ip.replace("::ffff:", "") # Return the cleaned IP
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family = "ipv4"
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return (ip, port, family) # Return the uncleaned IP if not matched
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ip, port = addr[:2]
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family = "ipv6" # Default to IPv6
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if ip.startswith("::ffff:"): # Check if this is a prefixed IPv4 address
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ip = ip.replace("::ffff:", "") # Clean the IP
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family = "ipv4"
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elif ":" not in ip: # Simple check to recognize IPv4
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family = "ipv4"
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return ip, port, family # Return cleaned IP and family
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##### TCP listener methods. Gets used once for each listening port #####
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@ -164,16 +165,18 @@ def listener(port, talker):
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listen_port = port
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buffer_size = 1024
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while True:
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sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) # v6 family
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# Use AF_INET6 but also handle IPv4 connections
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sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
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sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0) # Allow IPv4-mapped IPv6 addresses
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.bind((listen_ip, listen_port))
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sock.listen(buffer_size)
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client, addr = sock.accept()
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ip, port, family = cleanip(addr) # Get all cleaned IP info
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valdict = {"ip": ip, "port": port, "family": family} # Put in dict
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thread = threading.Thread(target=talker, args=(client, valdict))
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thread.start() # Start talker thread to listen to port
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while True:
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client, addr = sock.accept()
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ip, port, family = cleanip(addr) # Get cleaned IP info including family
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valdict = {"ip": ip, "port": port, "family": family, "proto": ""}
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thread = threading.Thread(target=talker, args=(client, valdict))
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thread.start() # Start talker thread to listen to port
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##### Telnet responder method. Is run in own thread for each telnet query #####
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def telnet_talker(client, valdict, proto="telnet"):
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@ -209,35 +212,47 @@ def ssh_talker(client, valdict, proto="ssh"):
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##### HTTP responder method. Gets run in own thread for each HTTP query #####
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##### Automatically detects if client is a browser or a telnet client #####
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##### HTTP responder method. Gets run in own thread for each HTTP query #####
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def http_talker(client, valdict, proto="http"):
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time.sleep(.1) # Sleep to allow the client to send some data
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client.setblocking(0) # Set the socket recv as non-blocking
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browser = False # Is the client using a browser?
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try: # client.recv() will raise an error if the buffer is empty
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data = client.recv(2048) # Recieve data from the buffer (if any)
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print(data) # Print to stdout
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browser = True # Set client browser to True
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except: # If buffer was empty, then like a telnet client on TCP80
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browser = False # Set client browser to False
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if not browser: # If the client is not a browser
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telnet_talker(client, valdict, "http-telnet") # Hand to telnet_talker
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else: # If client is a browser
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# Proceed with standard HTTP response (with headers)
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valdict.update({"proto": proto})
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log(j2format(j2log, valdict))
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response_body_raw = j2format(j2send, valdict)+"\n"
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response_headers_raw = """HTTP/1.1 200 OK
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time.sleep(.1) # Sleep to allow the client to send some data
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client.setblocking(0) # Set the socket recv as non-blocking
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browser = False # Is the client using a browser?
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headers = {}
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try:
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data = client.recv(2048) # Receive data from the buffer (if any)
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request_lines = data.decode().split('\r\n')
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for line in request_lines:
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if ": " in line:
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key, value = line.split(": ", 1)
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headers[key] = value
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# Extract real IP and adjust family based on headers if present
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if 'X-Real-IP' in headers or 'X-Forwarded-For' in headers:
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real_ip = headers.get('X-Real-IP', headers.get('X-Forwarded-For').split(',')[0])
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ip, port, family = cleanip((real_ip, valdict['port']))
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valdict.update({"ip": ip, "family": family})
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browser = True # Set client browser to True
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except socket.error: # If buffer was empty, then like a telnet client on TCP80
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browser = False # Set client browser to False
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if not browser: # If the client is not a browser
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telnet_talker(client, valdict, "http-telnet") # Hand to telnet_talker
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else: # If client is a browser
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# Proceed with standard HTTP response (with headers)
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valdict.update({"proto": proto})
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log(j2format(j2log, valdict))
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response_body_raw = j2format(j2send, valdict)+"\n"
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response_headers_raw = """HTTP/1.1 200 OK
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Content-Length: %s
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Content-Type: application/json; encoding=utf8
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Connection: close""" % str(len(response_body_raw)) # Response with headers
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client.send(f'{response_headers_raw}\n\n{response_body_raw}'.encode())
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client.close()
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client.send(f'{response_headers_raw}\n\n{response_body_raw}'.encode())
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client.close()
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##### Server startup method. Starts a listener thread for each TCP port #####
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def start():
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talkers = {22: ssh_talker, 23: telnet_talker,
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80: http_talker} # Three listeners on different ports
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talkers = {2222: ssh_talker, 2223: telnet_talker,
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2280: http_talker} # Three listeners on different ports
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for talker in talkers:
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# Launch a thread for each listener
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thread = threading.Thread(target=listener,
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