Manual:API Python3

Summary

Since python language have introduced changes to syntax when going from 2.x to 3.x some adjustments had to be made for old code from API.

Code for Python3

code

#!/usr/bin/python3
# -*- coding: latin-1 -*-
import sys, posix, time, binascii, socket, select
import hashlib

class ApiRos:
    "Routeros api"
    def __init__(self, sk):
        self.sk = sk
        self.currenttag = 0

    def login(self, username, pwd):
        for repl, attrs in self.talk(["/login", "=name=" + username,
                                      "=password=" + pwd]):
          if repl == '!trap':
            return False
          elif '=ret' in attrs.keys():
        #for repl, attrs in self.talk(["/login"]):
            chal = binascii.unhexlify((attrs['=ret']).encode(sys.stdout.encoding))
            md = hashlib.md5()
            md.update(b'\x00')
            md.update(pwd.encode(sys.stdout.encoding))
            md.update(chal)
            for repl2, attrs2 in self.talk(["/login", "=name=" + username,
                   "=response=00" + binascii.hexlify(md.digest()).decode(sys.stdout.encoding) ]):
              if repl2 == '!trap':
                return False
        return True

    def talk(self, words):
        if self.writeSentence(words) == 0: return
        r = []
        while 1:
            i = self.readSentence();
            if len(i) == 0: continue
            reply = i[0]
            attrs = {}
            for w in i[1:]:
                j = w.find('=', 1)
                if (j == -1):
                    attrs[w] = ''
                else:
                    attrs[w[:j]] = w[j+1:]
            r.append((reply, attrs))
            if reply == '!done': return r

    def writeSentence(self, words):
        ret = 0
        for w in words:
            self.writeWord(w)
            ret += 1
        self.writeWord('')
        return ret

    def readSentence(self):
        r = []
        while 1:
            w = self.readWord()
            if w == '': return r
            r.append(w)

    def writeWord(self, w):
        print(("<<< " + w))
        self.writeLen(len(w))
        self.writeStr(w)

    def readWord(self):
        ret = self.readStr(self.readLen())
        print((">>> " + ret))
        return ret

    def writeLen(self, l):
        if l < 0x80:
            self.writeByte((l).to_bytes(1, sys.byteorder))
        elif l < 0x4000:
            l |= 0x8000
            tmp = (l >> 8) & 0xFF
            self.writeByte(((l >> 8) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte((l & 0xFF).to_bytes(1, sys.byteorder))
        elif l < 0x200000:
            l |= 0xC00000
            self.writeByte(((l >> 16) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte(((l >> 8) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte((l & 0xFF).to_bytes(1, sys.byteorder))
        elif l < 0x10000000:
            l |= 0xE0000000
            self.writeByte(((l >> 24) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte(((l >> 16) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte(((l >> 8) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte((l & 0xFF).to_bytes(1, sys.byteorder))
        else:
            self.writeByte((0xF0).to_bytes(1, sys.byteorder))
            self.writeByte(((l >> 24) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte(((l >> 16) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte(((l >> 8) & 0xFF).to_bytes(1, sys.byteorder))
            self.writeByte((l & 0xFF).to_bytes(1, sys.byteorder))

    def readLen(self):
        c = ord(self.readStr(1))
        # print (">rl> %i" % c)
        if (c & 0x80) == 0x00:
            pass
        elif (c & 0xC0) == 0x80:
            c &= ~0xC0
            c <<= 8
            c += ord(self.readStr(1))
        elif (c & 0xE0) == 0xC0:
            c &= ~0xE0
            c <<= 8
            c += ord(self.readStr(1))
            c <<= 8
            c += ord(self.readStr(1))
        elif (c & 0xF0) == 0xE0:
            c &= ~0xF0
            c <<= 8
            c += ord(self.readStr(1))
            c <<= 8
            c += ord(self.readStr(1))
            c <<= 8
            c += ord(self.readStr(1))
        elif (c & 0xF8) == 0xF0:
            c = ord(self.readStr(1))
            c <<= 8
            c += ord(self.readStr(1))
            c <<= 8
            c += ord(self.readStr(1))
            c <<= 8
            c += ord(self.readStr(1))
        return c

    def writeStr(self, str):
        n = 0;
        while n < len(str):
            r = self.sk.send(bytes(str[n:], 'UTF-8'))
            if r == 0: raise RuntimeError("connection closed by remote end")
            n += r

    def writeByte(self, str):
        n = 0;
        while n < len(str):
            r = self.sk.send(str[n:])
            if r == 0: raise RuntimeError("connection closed by remote end")
            n += r

    def readStr(self, length):
        ret = ''
        # print ("length: %i" % length)
        while len(ret) < length:
            s = self.sk.recv(length - len(ret))
            if s == b'': raise RuntimeError("connection closed by remote end")
            # print (b">>>" + s)
            # atgriezt kaa byte ja nav ascii chars
            if s >= (128).to_bytes(1, "big") :
               return s
            # print((">>> " + s.decode(sys.stdout.encoding, 'ignore')))
            ret += s.decode(sys.stdout.encoding, "replace")
        return ret

def main():
    s = None
    for res in socket.getaddrinfo(sys.argv[1], "8728", socket.AF_UNSPEC, socket.SOCK_STREAM):
        af, socktype, proto, canonname, sa = res
        try:
             s = socket.socket(af, socktype, proto)
        except (socket.error, msg):
            s = None
            continue
        try:
            s.connect(sa)
        except (socket.error, msg):
            s.close()
            s = None
            continue
        break
    if s is None:
        print ('could not open socket')
        sys.exit(1)

    apiros = ApiRos(s);

    # use default username and pasword if not specified
    if len(sys.argv) == 4:
      if not apiros.login(sys.argv[2], sys.argv[3]):
        return
    elif len(sys.argv) == 3:
      if not apiros.login(sys.argv[2], ""):
        return
    else :
      if not apiros.login("admin", ""):
        return

    inputsentence = []

    while 1:
        r = select.select([s, sys.stdin], [], [], None)
        if s in r[0]:
            # something to read in socket, read sentence
            x = apiros.readSentence()

        if sys.stdin in r[0]:
            # read line from input and strip off newline
            l = sys.stdin.readline()
            l = l[:-1]

            # if empty line, send sentence and start with new
            # otherwise append to input sentence
            if l == '':
                apiros.writeSentence(inputsentence)
                inputsentence = []
            else:
                inputsentence.append(l)

if __name__ == '__main__':
    main()

file

api client in python3

See also

API