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# coding=utf-8 # # Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2021 All Rights Reserved # # Licensed under CLOUD LINUX LICENSE AGREEMENT # http://cloudlinux.com/docs/LICENCE.TXT # import platform from time import sleep from typing import Dict # NOQA import requests from clcommon.utils import is_testing_enabled_repo, get_cl_version, is_ubuntu, get_os_version from clcommon.clexception import FormattedException class GroupInfoReaderError(FormattedException): def __init__(self, reason, message=None, details=None): if message is None: message = ( "Encountered an error while getting the remote available groups info. " "Try again later. If the same problem occurs again - contact CloudLinux support." ) super().__init__({ "message": message, "context": {"reason": reason}, "details": details, }) class GroupInfoReader: """ The purpose of this class is to get remote yum info about available groups: 1. alt-php 2. alt-nodejs 3. alt-ruby 4. alt-python There we get special url with json which depends on machine features: cl version: 6, 7, 6 hybrid architecture: x84_64, i386 enabled testing repositories status: beta, stable """ # TODO: consider about caching during some period of time GROUP_INFO = None GROUP_URL = None CL_BASE = "https://repo.cloudlinux.com/other/" UBUNTU_BASE = "https://repo.cloudlinux.com/cloudlinux-ubuntu/" @classmethod def group_url(cls): # type: () -> str """Get url with available groups json""" if cls.GROUP_URL is None: cls.GROUP_URL = cls._get_group_url() return cls.GROUP_URL @classmethod def _get_group_url(cls): # type () -> str """ Final url example for CloudLinux: https://repo.cloudlinux.com/other/cl6/package-info.x86_64.stable.json Final url example for Ubuntu: https://repo.cloudlinux.com/cloudlinux-ubuntu/package-info.20_04.json for cl6, arch x86_64 and disabled testing: stable :return: string with the result url or None if the CL version cannot be identified """ if is_ubuntu(): _, ubuntu_version = get_os_version() # 20.04 -> 20_04 ubuntu_version = ubuntu_version.replace(".", "_") suffix = f"package-info.{ubuntu_version}.json" return cls.UBUNTU_BASE + suffix else: arch = platform.machine() arch = "i386" if arch != "x86_64" else arch repo = "beta" if is_testing_enabled_repo() else "stable" cl_version = get_cl_version() if cl_version is None: return None # replace cl7h -> cl7, due to using same repo link for 7/7h cl_version = cl_version.replace("cl7h", "cl7") suffix = ".".join(["/package-info", arch, repo, "json"]) return cls.CL_BASE + cl_version + suffix @classmethod def get_available_groups(cls): # type: () -> Dict """ Sends request to group url, gets json and converts it to dict :return: dict with groups info """ if cls.GROUP_INFO is not None: return cls.GROUP_INFO url = cls.group_url() if url is None: raise GroupInfoReaderError( "Could not identify CloudLinux version", message="Could not identify CloudLinux version (using kernel version). " "Restart your system. If the same problem occurs again" " - contact CloudLinux support.", ) # requests.get() with 3 retries # Increasing sleep time attempts = 3 for i in range(attempts): try: cls.GROUP_INFO = requests.get(url, timeout=20).json() return cls.GROUP_INFO except requests.exceptions.RequestException as ex: if i + 1 >= attempts: err_message = f"Unable to reach {url}. Check your internet connection \ or try again later. If the same problem occurs again \ - contact CloudLinux support." raise GroupInfoReaderError( f"{url} - link unavailable", message=err_message, details=str(ex), ) from ex sleep(i + 1) return {} @classmethod def get_group_info(cls, group): # type: (str) -> Dict """ Filter dict with all available groups by special group name E.g: group = python we will get dict like that: {'alt-python27': {'version': '2.7.15', 'name': 'alt-python27', 'release': '1.el6'}, 'alt-python33': {'version': '3.3.3', 'name': 'alt-python33', 'release': '1.el6'}, 'alt-python34': {'version': '3.4.4', 'name': 'alt-python34', 'release': '1.el6'}...} :param group :rtype: dict with info per group """ group_info = {} available_groups = cls.get_available_groups() for grp in available_groups.get("groups_info", {}): if group in grp: group_info.update({grp: available_groups["groups_info"][grp]}) return group_info
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