added python reference implementation

python/library.py

@@ -0,0 +1,135 @@
+import ctypes
+from ctypes import Structure, c_char_p, c_int, cdll
+from dataclasses import dataclass, astuple
+import time
+import json
+from urllib.parse import urlparse
+from typing import List
+import subprocess
+import uuid
+import dacite
+import os
+
+p2prc = ctypes.CDLL("SharedObjects/p2prc.so")
+
+p2prc.Init("")
+
+# Global variable 
+# A global variable will be populated on runtime.
+# It is read from P2PRC directly or from a local
+# database. 
+
+# Node information
+# Generated using: https://jsonformatter.org/json-to-python
+@dataclass
+class Node:
+    Name: str
+    MachineUsername: str
+    IPV4: str
+    IPV6: str
+    Latency: int
+    Download: int
+    Upload: int
+    ServerPort: str
+    BareMetalSSHPort: str
+    NAT: str
+    EscapeImplementation: str
+    ProxyServer: str
+    UnSafeMode: bool
+    PublicKey: str
+    CustomInformation: str
+
+@dataclass
+class IPAddress:
+    ip_address: List[Node]
+
+
+# ----------------------------------------------------------------------------
+# ----------------------------- Helper functions ----------------------------- 
+# ----------------------------------------------------------------------------  
+
+def StartServer():
+    # Starting P2PRC as a server mode
+    p2prc.Server()
+    for _ in iter(int, 1):
+        pass
+
+# Class to create string to pass as string function 
+# parameter to shared object file
+class go_string(Structure):
+    _fields_ = [
+    ("p", c_char_p),
+    ("n", c_int)]
+
+# Local port intended to ensure that 
+def P2PRCMapPort(port="",domainname="",serveraddress=""):
+    # Local Port intended to be escaped outside NAT
+    # Converting to the appropirate datatype to be
+    # passed as a string to GoLang.
+    port = go_string(c_char_p(port.encode('utf-8')), len(port))
+    domainname = go_string(c_char_p(domainname.encode('utf-8')), len(domainname))
+    serveraddress = go_string(c_char_p(serveraddress.encode('utf-8')), len(serveraddress))
+
+    # Defining the response type of the GoLang function 
+    # function
+    p2prc.MapPort.restype = c_char_p
+    # Calling the Go function
+    address = p2prc.MapPort(port,domainname,serveraddress)
+    res = str(address).strip("b'")
+    return res
+
+def ListNodes():
+    # View IP Table information 
+    p2prc.ViewIPTable.restype = c_char_p
+    ipTable = p2prc.ViewIPTable()
+    # View IP Table as 
+    ipTableObject = json.loads((str(ipTable).strip("b'")))
+    dat: IPAddress = dacite.from_dict(IPAddress,ipTableObject)
+    return dat
+
+# -----------------------------------------------------------------------------------
+# ----------------------------- End of helper functions ----------------------------- 
+# -----------------------------------------------------------------------------------
+
+def infinity():
+    while True:
+        yield
+
+# Process datatype
+@dataclass
+class Process:
+    ID: str
+    InternalPortNo: str
+    ExternalAddress: str
+    NodeInfo: Node
+    TaskName: str
+    CommandToRunScript: str
+    CommandToKillScript: str
+    Status: bool
+    DomainName: str
+
+# Initial defined functions 
+# Exposed functions 
+def SpinProcess(process: Process):
+    # Starts P2PRC process 
+    os.system(process.CommandToRunScript)
+
+    process.ExternalAddress = P2PRCMapPort(port=process.InternalPortNo,domainname=process.DomainName,serveraddress=process.NodeInfo.ip_address.IPV4 + ":" + process.NodeInfo.ip_address.ServerPort)
+    process.ID = str(uuid.uuid4())
+    process.Status = True
+    return process
+
+# Kill process based on the process provided
+def KillProcess(process: Process): 
+    os.system(process.CommandToKillScript)
+    process.Status = False
+    return process
+    
+
+# def ProcessInformation():
+
+# def ListProcess():
+    
+
+
+