279 lines
9.2 KiB
Python
279 lines
9.2 KiB
Python
import json, string, re, typing, uuid
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from . import consts
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ASCII_UPPER = string.ascii_uppercase
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ASCII_LOWER = string.ascii_lowercase
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STRICT_RFC1459_UPPER = ASCII_UPPER+r'\[]'
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STRICT_RFC1459_LOWER = ASCII_LOWER+r'|{}'
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RFC1459_UPPER = STRICT_RFC1459_UPPER+"^"
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RFC1459_LOWER = STRICT_RFC1459_LOWER+"~"
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# case mapping lowercase/uppcase logic
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def multi_replace(s: str,
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chars1: typing.Iterable[str],
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chars2: typing.Iterable[str]) -> str:
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for char1, char2 in zip(chars1, chars2):
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s = s.replace(char1, char2)
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return s
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def lower(case_mapping: str, s: str) -> str:
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if case_mapping == "ascii":
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return multi_replace(s, ASCII_UPPER, ASCII_LOWER)
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elif case_mapping == "rfc1459":
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return multi_replace(s, RFC1459_UPPER, RFC1459_LOWER)
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elif case_mapping == "strict-rfc1459":
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return multi_replace(s, STRICT_RFC1459_UPPER, STRICT_RFC1459_LOWER)
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else:
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raise ValueError("unknown casemapping '%s'" % case_mapping)
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# compare a string while respecting case mapping
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def equals(case_mapping: str, s1: str, s2: str) -> bool:
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return lower(case_mapping, s1) == lower(case_mapping, s2)
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REGEX_COLOR = re.compile("%s(?:(\d{1,2})(?:,(\d{1,2}))?)?" % consts.COLOR)
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def color(s: str, foreground: consts.IRCColor,
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background: consts.IRCColor=None) -> str:
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foreground_s = str(foreground.irc).zfill(2)
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background_s = ""
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if background:
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background_s = ",%s" % str(background.irc).zfill(2)
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return "%s%s%s%s%s" % (consts.COLOR, foreground_s, background_s, s,
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consts.COLOR)
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HASH_COLORS = list(range(2, 16))
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def hash_colorize(s: str):
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hash_code = sum(ord(c) for c in s.lower())%len(HASH_COLORS)
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return color(s, consts.COLOR_CODES[HASH_COLORS[hash_code]])
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def bold(s: str) -> str:
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return "%s%s%s" % (consts.BOLD, s, consts.BOLD)
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def underline(s: str) -> str:
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return "%s%s%s" % (consts.UNDERLINE, s, consts.UNDERLINE)
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def strip_font(s: str) -> str:
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s = s.replace(consts.BOLD, "")
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s = s.replace(consts.ITALIC, "")
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s = REGEX_COLOR.sub("", s)
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s = s.replace(consts.COLOR, "")
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return s
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FORMAT_TOKENS = [
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consts.BOLD,
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consts.RESET,
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consts.UNDERLINE
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]
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FORMAT_STRIP = [
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"\x08" # backspace
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]
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def _format_tokens(s: str) -> typing.List[str]:
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is_color = False
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foreground = ""
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background = ""
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is_background = False
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matches = [] # type: typing.List[str]
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for i, char in enumerate(s):
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last_char = i == len(s)-1
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if is_color:
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current_color = background if is_background else foreground
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color_finished = True
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if char.isdigit() and len(current_color) < 2:
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if is_background:
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background += char
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else:
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foreground += char
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color_finished = (len(current_color)+1) == 2
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elif char == "," and not is_background:
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is_background = True
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color_finished = False
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if color_finished or last_char:
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color = foreground
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if background:
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color += ","+background
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matches.append("\x03%s" % color)
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is_color = False
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foreground = ""
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background = ""
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is_background = False
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if char == consts.COLOR:
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if is_color:
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matches.append(char)
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else:
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is_color = True
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elif char in FORMAT_TOKENS:
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matches.append(char)
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elif char in FORMAT_STRIP:
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matches.append(char)
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return matches
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def _color_match(code: typing.Optional[str], foreground: bool) -> str:
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if not code:
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return ""
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color = consts.COLOR_CODES[int(code)]
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return color.to_ansi(not foreground)
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def parse_format(s: str) -> str:
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has_foreground = False
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has_background = False
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bold = False
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underline = False
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for token in _format_tokens(s):
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replace = ""
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type = token[0]
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if type == consts.COLOR:
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match = REGEX_COLOR.match(token)
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if match and (match.group(1) or match.group(2)):
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foreground = _color_match(match.group(1), True)
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background = _color_match(match.group(2), False)
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if foreground:
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replace += foreground
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has_foreground = True
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if background:
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replace += background
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has_background = True
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else:
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if has_foreground:
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has_foreground = False
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replace += consts.ANSI_FOREGROUND_RESET
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if has_background:
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has_background = False
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replace += consts.ANSI_BACKGROUND_RESET
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elif type == consts.BOLD:
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if bold:
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replace += consts.ANSI_BOLD_RESET
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else:
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replace += consts.ANSI_BOLD
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bold = not bold
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elif type == consts.RESET:
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replace += consts.ANSI_RESET
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elif type == consts.UNDERLINE:
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if underline:
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replace += consts.ANSI_UNDERLINE_RESET
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else:
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replace += consts.ANSI_UNDERLINE
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underline = not underline
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elif type in FORMAT_STRIP:
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replace = ""
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s = s.replace(token, replace, 1)
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if has_foreground:
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s += consts.ANSI_FOREGROUND_RESET
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if has_background:
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s += consts.ANSI_BACKGROUND_RESET
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if bold:
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s += consts.ANSI_BOLD_RESET
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if underline:
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s += consts.ANSI_UNDERLINE_RESET
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return s
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OPT_STR = typing.Optional[str]
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class IRCConnectionParameters(object):
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def __init__(self, id: int, alias: str, hostname: str, port: int,
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password: OPT_STR, tls: bool, bindhost: OPT_STR, nickname: str,
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username: OPT_STR, realname: OPT_STR,
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args: typing.Dict[str, str]={}):
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self.id = id
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self.alias = alias
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self.hostname = hostname
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self.port = port
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self.tls = tls
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self.bindhost = bindhost
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self.password = password
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self.nickname = nickname
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self.username = username
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self.realname = realname
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self.args = args
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class CTCPMessage(object):
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def __init__(self, command: str, message: str):
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self.command = command
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self.message = message
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def parse_ctcp(s: str) -> typing.Optional[CTCPMessage]:
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ctcp = s.startswith("\x01")
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if s.startswith("\x01"):
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ctcp_command, sep, ctcp_message = s[1:].partition(" ")
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if ctcp_command.endswith("\x01"):
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ctcp_command = ctcp_command[:-1]
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if ctcp_message.endswith("\x01"):
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ctcp_message = ctcp_message[:-1]
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return CTCPMessage(ctcp_command, ctcp_message)
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return None
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class Capability(object):
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def __init__(self, ratified_name: typing.Optional[str],
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draft_name: str=None, alias: str=None,
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depends_on: typing.List[str]=None):
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self.alias = alias or ratified_name
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self._caps = set([ratified_name, draft_name])
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self.depends_on = depends_on or []
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self._on_ack_callbacks = [
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] # type: typing.List[typing.Callable[[], None]]
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def available(self, capabilities: typing.Iterable[str]
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) -> typing.Optional[str]:
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match = list(set(capabilities)&self._caps)
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return match[0] if match else None
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def match(self, capability: str) -> typing.Optional[str]:
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cap = list(set([capability])&self._caps)
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return cap[0] if cap else None
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def copy(self):
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return Capability(*self._caps, alias=self.alias,
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depends_on=self.depends_on[:])
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def on_ack(self, callback: typing.Callable[[], None]):
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self._on_ack_callbacks.append(callback)
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def ack(self):
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for callback in self._on_ack_callbacks:
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callback()
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def nak(self):
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pass
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class MessageTag(object):
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def __init__(self, name: typing.Optional[str], draft_name: str=None):
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self._names = set([name, draft_name])
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def get_value(self, tags: typing.Dict[str, str]) -> typing.Optional[str]:
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key = list(set(tags.keys())&self._names)
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return tags[key[0]] if key else None
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def present(self, tags: typing.Dict[str, str]) -> bool:
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return bool(set(tags.keys())&self._names)
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def match(self, tag: str) -> typing.Optional[str]:
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key = list(set([tag])&self._names)
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return key[0] if key else None
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class BatchType(object):
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def __init__(self, name: typing.Optional[str], draft_name: str=None):
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self._names = set([name, draft_name])
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def match(self, type: str) -> typing.Optional[str]:
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t = list(set([type])&self._names)
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return t[0] if t else None
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def hostmask_match_many(hostmasks: typing.List[str], pattern: str
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) -> typing.Optional[str]:
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part1_out = []
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for part1 in pattern.split("?"):
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part2_out = []
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for part2 in part1.split("*"):
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part2_out.append(re.escape(part2))
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part1_out.append(".*".join(part2_out))
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pattern_re = re.compile(".".join(part1_out))
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for hostmask in hostmasks:
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if pattern_re.match(hostmask):
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return hostmask
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return None
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def hostmask_match(hostmask: str, pattern: str) -> bool:
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return not hostmask_match_many([hostmask], pattern) == None
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