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# -*- coding: utf-8 -*-

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU Lesser General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public License

# along with this program. If not, see <http://www.gnu.org/licenses/>.

import configparser

import os

import shlex

import subprocess

from os.path import expanduser, expandvars

from typing import List, Optional, Union

from gitlab.const import USER_AGENT

def _env_config() -> List[str]:

if "PYTHON_GITLAB_CFG" in os.environ:

return [os.environ["PYTHON_GITLAB_CFG"]]

return []

_DEFAULT_FILES: List[str] = _env_config() + [

"/etc/python-gitlab.cfg",

os.path.expanduser("~/.python-gitlab.cfg"),

]

HELPER_PREFIX = "helper:"

HELPER_ATTRIBUTES = ["job_token", "http_password", "private_token", "oauth_token"]

class ConfigError(Exception):

pass

class GitlabIDError(ConfigError):

pass

class GitlabDataError(ConfigError):

pass

class GitlabConfigMissingError(ConfigError):

pass

class GitlabConfigHelperError(ConfigError):

pass

class GitlabConfigParser(object):

def __init__(

self, gitlab_id: Optional[str] = None, config_files: Optional[List[str]] = None

) -> None:

self.gitlab_id = gitlab_id

_files = config_files or _DEFAULT_FILES

file_exist = False

for file in _files:

if os.path.exists(file):

file_exist = True

if not file_exist:

raise GitlabConfigMissingError(

"Config file not found. \nPlease create one in "

"one of the following locations: {} \nor "

"specify a config file using the '-c' parameter.".format(

", ".join(_DEFAULT_FILES)

)

self._config = configparser.ConfigParser()

self._config.read(_files)

if self.gitlab_id is None:

try:

self.gitlab_id = self._config.get("global", "default")

except Exception as e:

raise GitlabIDError(

"Impossible to get the gitlab id (not specified in config file)"

) from e

try:

self.url = self._config.get(self.gitlab_id, "url")

except Exception as e:

raise GitlabDataError(

"Impossible to get gitlab informations from "

"configuration (%s)" % self.gitlab_id

) from e

self.ssl_verify: Union[bool, str] = True

try:

self.ssl_verify = self._config.getboolean("global", "ssl_verify")

except ValueError:

# Value Error means the option exists but isn't a boolean.

# Get as a string instead as it should then be a local path to a

# CA bundle.

try:

self.ssl_verify = self._config.get("global", "ssl_verify")

except Exception:

pass

except Exception:

pass

try:

self.ssl_verify = self._config.getboolean(self.gitlab_id, "ssl_verify")

except ValueError:

# Value Error means the option exists but isn't a boolean.

# Get as a string instead as it should then be a local path to a

# CA bundle.

try:

self.ssl_verify = self._config.get(self.gitlab_id, "ssl_verify")

except Exception:

pass

except Exception:

pass

self.timeout = 60

try:

self.timeout = self._config.getint("global", "timeout")

except Exception:

pass

try:

self.timeout = self._config.getint(self.gitlab_id, "timeout")

except Exception:

pass

self.private_token = None

try:

self.private_token = self._config.get(self.gitlab_id, "private_token")

except Exception:

pass

self.oauth_token = None

try:

self.oauth_token = self._config.get(self.gitlab_id, "oauth_token")

except Exception:

pass

self.job_token = None

try:

self.job_token = self._config.get(self.gitlab_id, "job_token")

except Exception:

pass

self.http_username = None

self.http_password = None

try:

self.http_username = self._config.get(self.gitlab_id, "http_username")

self.http_password = self._config.get(self.gitlab_id, "http_password")

except Exception:

pass

self._get_values_from_helper()

self.api_version = "4"

try:

self.api_version = self._config.get("global", "api_version")

except Exception:

pass

try:

self.api_version = self._config.get(self.gitlab_id, "api_version")

except Exception:

pass

if self.api_version not in ("4",):

raise GitlabDataError("Unsupported API version: %s" % self.api_version)

self.per_page = None

for section in ["global", self.gitlab_id]:

try:

self.per_page = self._config.getint(section, "per_page")

except Exception:

pass

if self.per_page is not None and not 0 <= self.per_page <= 100:

raise GitlabDataError("Unsupported per_page number: %s" % self.per_page)

self.pagination = None

try:

self.pagination = self._config.get(self.gitlab_id, "pagination")

except Exception:

pass

self.order_by = None

try:

self.order_by = self._config.get(self.gitlab_id, "order_by")

except Exception:

pass

self.user_agent = USER_AGENT

try:

self.user_agent = self._config.get("global", "user_agent")

except Exception:

pass

try:

self.user_agent = self._config.get(self.gitlab_id, "user_agent")

except Exception:

pass

def _get_values_from_helper(self) -> None:

"""Update attributes that may get values from an external helper program"""

for attr in HELPER_ATTRIBUTES:

value = getattr(self, attr)

if not isinstance(value, str):

continue

if not value.lower().strip().startswith(HELPER_PREFIX):

continue

helper = value[len(HELPER_PREFIX) :].strip()

commmand = [expanduser(expandvars(token)) for token in shlex.split(helper)]

try:

value = (

subprocess.check_output(commmand, stderr=subprocess.PIPE)

.decode("utf-8")

.strip()

)

except subprocess.CalledProcessError as e:

stderr = e.stderr.decode().strip()

raise GitlabConfigHelperError(

f"Failed to read {attr} value from helper "

f"for {self.gitlab_id}:\n{stderr}"

) from e

setattr(self, attr, value)