382 lines
7.3 KiB
Python
382 lines
7.3 KiB
Python
import ply.lex as lex
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import ply.yacc as yacc
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import enum
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import uuid
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import os
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import logging
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import sys
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import select
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from multiprocessing import Process
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from multiprocessing import Value
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from multiprocessing import Pipe
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logg = logging.getLogger()
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logg.setLevel(logging.DEBUG)
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tokens = (
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'ID',
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'NOID',
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'HEX',
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'LABEL',
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'VALUE',
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'END',
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)
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t_ID = r'[a-zA-Z0-9]+(-[a-zA-Z0-9]+)+'
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t_NOID = r'\-'
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t_LABEL = r'[a-zA-Z_]+'
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t_VALUE = r'\d+'
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t_END = r'\n'
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t_HEX = r'0x([a-fA-F0-9])+'
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#def t_VALUE(t):
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# r'\d+'
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# t.value = int(t.value)
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#def t_HEX(t):
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# r'0x([a-fA-F0-9])+'
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#print(t)
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#try:
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# t.value = bytes.fromhex(t.value)
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#except:
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# return False
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#return t.value
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#t.value = t.value
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# pass
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t_ignore = ' \t'
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def t_error(t):
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print("problem: ", t.value[0])
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t.lexer.skip(1)
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lexer = lex.lex()
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#
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#data = '''
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#FOOBAR uf-2etg 0xa3bdefa momo 123
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#
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#BARBAR
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#BAZ
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#
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#BASFB foo-bar-baz
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#'''
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#
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#lexer.input(data)
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#
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#while True:
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# tok = lexer.token()
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# if not tok:
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# break
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# print(tok)
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class CmdId(enum.IntEnum):
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KEY_CREATE = 0x1
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VOUCHER_CREATE = 0x10
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VOUCHER_MINT = 0x11
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VOUCHER_TRANSFER = 0x12
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WAIT = 0x20
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NEED = 0x21
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PEEK = 0x80
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class Agent:
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def __str__(self):
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return self.__class__.__name__ + ':' #{}'.format(self.__class__.__name__, self.v)
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class AddressAgent(Agent):
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def __init__(self, v):
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self.v = bytes.fromhex(v[2:])
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def __str__(self):
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return Agent.__str__(self) + self.v.hex()
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class NameAgent(Agent):
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def __init__(self, v):
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self.v = v
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def __str__(self):
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return Agent.__str__(self) + self.v
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class Cmd:
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def __init__(self, cmd):
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self.c = CmdId[cmd]
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self.i = None
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self.a = None
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self.f = None
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self.t = None
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self.v = 0
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self.k = None
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self.d = 0
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self.p = 0
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self.s = None
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self.n = None
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def __str__(self):
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return "[{:02d}]{} i={} v={} a={} f={} t={} k={} d={} p={} s={} n={}".format(self.c, self.c.name, self.i, self.v, self.a, self.f, self.t, self.k, self.d, self.p, self.s, self.n)
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def to_store(v):
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return str(v)
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def to_agent(v):
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r = None
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try:
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r = AddressAgent(v)
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except ValueError:
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r = NameAgent(v)
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return r
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def p_cmd(p):
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'''cmd : key_create
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| voucher_mint
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| voucher_transfer
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| voucher_create
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| pair
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'''
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p[0] = p[1]
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def p_key_create(p):
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'''key_create : change_label LABEL LABEL
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| change_label LABEL LABEL HEX
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'''
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o = p[1]
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o.f = NameAgent(p[2])
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o.t = to_store(p[3])
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if len(p) > 4:
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o.k = p[4]
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p[0] = o
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def p_voucher_mint(p):
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'''voucher_mint : change_label hv
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| change_label nv
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'''
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o = p[1]
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if o.c.value & 0x10 == 0:
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raise ValueError("not a voucher command")
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o.v = int(p[2][1])
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o.a = to_agent(p[2][0])
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p[0] = o
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def p_voucher_create(p):
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'''voucher_create : change_label LABEL LABEL VALUE
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| change_label LABEL LABEL VALUE VALUE VALUE
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'''
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o = p[1]
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if o.c.value & 0x10 == 0:
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raise ValueError("not a voucher command")
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o.s = p[2]
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o.n = p[3]
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o.v = int(p[4])
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if len(p) > 5:
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o.d = p[5]
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o.p = p[6]
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p[0] = o
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def p_voucher_mint_recipient(p):
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'''voucher_mint : change_label hv HEX
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| change_label nv HEX
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| change_label hv LABEL
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| change_label nv LABEL
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'''
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o = p[1]
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if o.c.value & 0x10 == 0:
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raise ValueError("not a voucher command")
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o.v = int(p[2][1])
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o.a = to_agent(p[2][0])
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o.t = to_agent(p[3])
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p[0] = o
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def p_voucher_transfer(p):
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'''voucher_transfer : change_label hv HEX HEX
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| change_label nv HEX HEX
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| change_label hv LABEL HEX
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| change_label nv LABEL HEX
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'''
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o = p[1]
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if o.c.value & 0x10 == 0:
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raise ValueError("not a voucher command")
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o.v = int(p[2][1])
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o.a = to_agent(p[2][0])
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o.t = to_agent(p[3])
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o.f = to_agent(p[4])
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p[0] = o
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def p_nv(p):
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'nv : LABEL VALUE'
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p[0] = (p[1], p[2],)
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def p_hv(p):
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'hv : HEX VALUE'
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p[0] = (p[1], p[2],)
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def p_change_label(p):
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'''change_label : pair
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| pairnoid
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'''
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p[0] = p[1]
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def p_pair(p):
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'pair : LABEL ID'
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o = Cmd(p[1])
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o.i = p[2]
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p[0] = o
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def p_pairnoid(p):
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'pairnoid : LABEL NOID'
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o = Cmd(p[1])
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o.i = str(uuid.uuid4())
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p[0] = o
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class Router:
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def __init__(self):
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self.__routes = {}
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self.__r = {}
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def register(self, cmd_id, fn):
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self.__routes[cmd_id] = fn
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def sync(self, uid):
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o = self.__r[uid]
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if o[1] == None:
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return None
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r = o[1][0].recv()
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o = (o[0], None,)
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o[0].join()
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return r
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def __wrap(self, uid, fn, cmd):
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r = fn(cmd)
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self.__r[uid][1][1].send(r)
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def exec(self, cmd):
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logg.debug("router exec {}".format(cmd))
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if cmd.c & 0xa0 > 0:
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return self.sync(cmd.i)
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fn = self.__routes[cmd.c]
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pi = Pipe(False)
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po = Process(target=self.__wrap, args=(cmd.i, fn, cmd,))
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self.__r[cmd.i] = (po, pi,)
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po.start()
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def finish(self):
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print("syncing")
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for k, v in self.__r.items():
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print("syncing key " + k)
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r = self.sync(k)
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logg.debug("synced " + k + ": " + r)
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print("synced " + k + ": " + r)
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def __del__(self):
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self.finish()
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def noop_handler(cmd):
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return str(cmd)
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def foo_handler(cmd):
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return os.popen('eth-info -p https://celo.grassecon.net').read()
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parser = yacc.yacc()
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running = True
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class FileGet:
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def __init__(self, o, fp):
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self.__running = True
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self.__o = o
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self.__f = open(fp, 'r')
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def run(self):
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while self.__running:
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v = ifc.get()
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if v == None:
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break
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v = v.strip('\n')
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if len(v) == 0:
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break
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r = parser.parse(v)
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self.__o.exec(r)
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def get(self):
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return self.__f.readline()
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class WaitGet:
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def __init__(self, o, *r):
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self.__running = True
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self.__o = o
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self.__f = r
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# TODO: router copy results in missing keys to sync when closing down
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def __process(self, f):
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while self.__running:
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r = select.select([f], [], [])
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v = r[0][0].recv()
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if v == None:
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break
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v = v.strip('\n')
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if len(v) == 0:
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break
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r = parser.parse(v)
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self.__o.exec(r)
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def run(self):
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(fo, fi,) = Pipe()
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p = Process(target=self.__process, args=(fo,))
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p.start()
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while self.__running:
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v = input("> ")
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if v == "":
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fi.send(None)
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break
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fi.send(v)
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p.join()
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logg.debug('waitget run end')
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if __name__ == '__main__':
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ifc = None
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o = Router()
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o.register(CmdId.KEY_CREATE, noop_handler)
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o.register(CmdId.VOUCHER_MINT, noop_handler)
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o.register(CmdId.VOUCHER_CREATE, noop_handler)
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o.register(CmdId.VOUCHER_TRANSFER, foo_handler)
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if len(sys.argv) > 1:
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ifc = FileGet(o, sys.argv[1])
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else:
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ifc = WaitGet(o, sys.stdin)
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ifc.run()
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o.finish()
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