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d9cf91210e
* Add local mDNS responder * Fix * Use mDNS in dashboard status * Lint * Lint * Fix test * Remove hostname * Fix use enum * Lint
134 lines
3.4 KiB
Python
134 lines
3.4 KiB
Python
from __future__ import print_function
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import errno
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import logging
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import os
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import socket
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import subprocess
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from esphomeyaml.py_compat import text_type, char_to_byte
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from esphomeyaml.zeroconf import Zeroconf
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_LOGGER = logging.getLogger(__name__)
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def ensure_unique_string(preferred_string, current_strings):
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test_string = preferred_string
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current_strings_set = set(current_strings)
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tries = 1
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while test_string in current_strings_set:
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tries += 1
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test_string = u"{}_{}".format(preferred_string, tries)
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return test_string
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def indent_all_but_first_and_last(text, padding=u' '):
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lines = text.splitlines(True)
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if len(lines) <= 2:
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return text
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return lines[0] + u''.join(padding + line for line in lines[1:-1]) + lines[-1]
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def indent_list(text, padding=u' '):
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return [padding + line for line in text.splitlines()]
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def indent(text, padding=u' '):
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return u'\n'.join(indent_list(text, padding))
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# From https://stackoverflow.com/a/14945195/8924614
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def cpp_string_escape(string, encoding='utf-8'):
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def _should_escape(byte): # type: (int) -> bool
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if not 32 <= byte < 127:
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return True
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if byte in (char_to_byte('\\'), char_to_byte('"')):
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return True
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return False
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if isinstance(string, text_type):
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string = string.encode(encoding)
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result = ''
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for character in string:
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character = char_to_byte(character)
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if _should_escape(character):
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result += '\\%03o' % character
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else:
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result += chr(character)
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return '"' + result + '"'
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def color(the_color, message=''):
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from colorlog.escape_codes import escape_codes, parse_colors
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if not message:
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res = parse_colors(the_color)
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else:
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res = parse_colors(the_color) + message + escape_codes['reset']
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return res
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def run_system_command(*args):
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p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout, stderr = p.communicate()
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rc = p.returncode
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return rc, stdout, stderr
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def mkdir_p(path):
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try:
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os.makedirs(path)
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except OSError as exc:
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if exc.errno == errno.EEXIST and os.path.isdir(path):
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pass
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else:
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raise
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def is_ip_address(host):
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parts = host.split('.')
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if len(parts) != 4:
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return False
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try:
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for p in parts:
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int(p)
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return True
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except ValueError:
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return False
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def _resolve_with_zeroconf(host):
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from esphomeyaml.core import EsphomeyamlError
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try:
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zc = Zeroconf()
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except Exception:
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raise EsphomeyamlError("Cannot start mDNS sockets, is this a docker container without "
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"host network mode?")
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try:
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info = zc.resolve_host(host + '.')
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except Exception as err:
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raise EsphomeyamlError("Error resolving mDNS hostname: {}".format(err))
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finally:
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zc.close()
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if info is None:
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raise EsphomeyamlError("Error resolving address with mDNS: Did not respond. "
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"Maybe the device is offline.")
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return info
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def resolve_ip_address(host):
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from esphomeyaml.core import EsphomeyamlError
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try:
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ip = socket.gethostbyname(host)
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except socket.error as err:
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if host.endswith('.local'):
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ip = _resolve_with_zeroconf(host)
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else:
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raise EsphomeyamlError("Error resolving IP address: {}".format(err))
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return ip
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