108 lines
3.0 KiB
Python
108 lines
3.0 KiB
Python
#!/usr/bin/env python3
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"""stores configuration settings for linkulator"""
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import configparser
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import stat
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from pathlib import Path
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from time import time
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class DefaultPaths:
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"""data class containing configurable path defaults"""
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all_homedir_pattern: str = "/home/*/"
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datadir: str = ".linkulator"
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datafile: str = "linkulator.data"
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ignorefile: str = "ignore"
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settingsfile: str = "linkulatorrc"
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PATHS = DefaultPaths()
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class DefaultUser:
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"""data class containing user defaults"""
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datadir: Path = Path.home() / PATHS.datadir
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datafile: Path = datadir / PATHS.datafile
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ignorefile: Path = datadir / PATHS.ignorefile
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settingsfile: Path = datadir / PATHS.settingsfile
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lastlogin: float
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browser: str = "lynx"
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def save(self):
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"""Saves config data to file"""
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config = configparser.ConfigParser()
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config["User Status"] = {"lastlogin": time()}
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config["User Settings"] = {"browser": self.browser}
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with open(self.settingsfile, "w") as file:
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config.write(file)
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def load(self):
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"""Loads from config file"""
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config = configparser.ConfigParser()
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ret = config.read(self.settingsfile)
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if len(ret) > 0:
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self.lastlogin = config["User Status"]["lastlogin"]
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self.browser = config["User Settings"]["browser"]
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USER = DefaultUser()
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def is_readable(st_mode: int) -> bool:
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"""Checks the provided mode is group and other readable, returns true if this is the case
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Check if 700 is readable:
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>>> is_readable(16832)
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False
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Check if 755 is readable:
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>>> is_readable(16877)
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True
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"""
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if bool(st_mode & stat.S_IRGRP) & bool(st_mode & stat.S_IROTH):
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return True
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return False
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def init():
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"""Performs startup checks to ensure environment is set up for use
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Creates necessary data directory and data file. If they exist, no error
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occurs.
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Checks that the data directory and data file are group and other readable.
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Sets some correct permissions if they are not.
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Other errors may raise an exception.
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"""
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USER.datadir.mkdir(mode=0o755, exist_ok=True)
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if not USER.settingsfile.is_file():
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with open(USER.settingsfile, "w+") as the_file:
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the_file.write(
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"[User Status]\nlastlogin = 0.0\n\n[User Settings]\nbrowser = lynx"
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)
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if not is_readable(USER.datadir.stat().st_mode):
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print(
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"Warning: %s is not group or other readable - changing permissions"
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% str(USER.datadir)
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)
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USER.datadir.chmod(0o755)
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USER.datafile.touch(mode=0o644, exist_ok=True)
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if not is_readable(USER.datafile.stat().st_mode):
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print(
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"Warning: %s is not group or other readable - changing permissions"
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% str(USER.datafile)
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)
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USER.datafile.chmod(0o644)
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try:
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USER.load()
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except configparser.MissingSectionHeaderError:
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print(
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"Warning: config file has invalid syntax and will be overwritten with default values"
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)
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