python-gitlab/gitlab/config.py at main · nickbroon/python-gitlab · GitHub

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from __future__ import annotations

import configparser

import os

import shlex

import subprocess

from os.path import expanduser, expandvars

from pathlib import Path

from gitlab.const import USER_AGENT

_DEFAULT_FILES: list[str] = [

"/etc/python-gitlab.cfg",

str(Path.home() / ".python-gitlab.cfg"),

]

HELPER_PREFIX = "helper:"

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

_CONFIG_PARSER_ERRORS = (configparser.NoOptionError, configparser.NoSectionError)

def _resolve_file(filepath: Path | str) -> str:

resolved = Path(filepath).resolve(strict=True)

return str(resolved)

def _get_config_files(config_files: list[str] | None = None) -> str | list[str]:

"""

Return resolved path(s) to config files if they exist, with precedence:

1. Files passed in config_files

2. File defined in PYTHON_GITLAB_CFG

3. User- and system-wide config files

"""

resolved_files = []

if config_files:

for config_file in config_files:

try:

resolved = _resolve_file(config_file)

except OSError as e:

raise GitlabConfigMissingError(

f"Cannot read config from file: {e}"

) from e

resolved_files.append(resolved)

return resolved_files

try:

env_config = os.environ["PYTHON_GITLAB_CFG"]

return _resolve_file(env_config)

except KeyError:

pass

except OSError as e:

raise GitlabConfigMissingError(

f"Cannot read config from PYTHON_GITLAB_CFG: {e}"

) from e

for config_file in _DEFAULT_FILES:

try:

resolved = _resolve_file(config_file)

except OSError:

continue

resolved_files.append(resolved)

return resolved_files

class ConfigError(Exception):

pass

class GitlabIDError(ConfigError):

pass

class GitlabDataError(ConfigError):

pass

class GitlabConfigMissingError(ConfigError):

pass

class GitlabConfigHelperError(ConfigError):

pass

class GitlabConfigParser:

def __init__(

self, gitlab_id: str | None = None, config_files: list[str] | None = None

) -> None:

self.gitlab_id = gitlab_id

self.http_username: str | None = None

self.http_password: str | None = None

self.job_token: str | None = None

self.oauth_token: str | None = None

self.private_token: str | None = None

self.api_version: str = "4"

self.order_by: str | None = None

self.pagination: str | None = None

self.per_page: int | None = None

self.retry_transient_errors: bool = False

self.ssl_verify: bool | str = True

self.timeout: int = 60

self.url: str | None = None

self.user_agent: str = USER_AGENT

self.keep_base_url: bool = False

self._files = _get_config_files(config_files)

if self._files:

self._parse_config()

if self.gitlab_id and not self._files:

raise GitlabConfigMissingError(

f"A gitlab id was provided ({self.gitlab_id}) but no config file found"

)

def _parse_config(self) -> None:

_config = configparser.ConfigParser()

_config.read(self._files, encoding="utf-8")

if self.gitlab_id and not _config.has_section(self.gitlab_id):

raise GitlabDataError(

f"A gitlab id was provided ({self.gitlab_id}) "

"but no config section found"

)

if self.gitlab_id is None:

try:

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

except Exception as e:

raise GitlabDataError(

"Impossible to get gitlab details from "

f"configuration ({self.gitlab_id})"

) from e

try:

self.ssl_verify = _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.

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

except _CONFIG_PARSER_ERRORS:

pass

try:

self.ssl_verify = _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.

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

self.http_password = _config.get(

self.gitlab_id, "http_password"

) # pragma: no cover

except _CONFIG_PARSER_ERRORS:

pass

self._get_values_from_helper()

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

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

raise GitlabDataError(f"Unsupported API version: {self.api_version}")

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

try:

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

except _CONFIG_PARSER_ERRORS:

pass

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

raise GitlabDataError(f"Unsupported per_page number: {self.per_page}")

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

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

except _CONFIG_PARSER_ERRORS:

pass

try:

self.retry_transient_errors = _config.getboolean(

"global", "retry_transient_errors"

)

except _CONFIG_PARSER_ERRORS:

pass

try:

self.retry_transient_errors = _config.getboolean(

self.gitlab_id, "retry_transient_errors"

)

except _CONFIG_PARSER_ERRORS:

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)

python-gitlab/gitlab/config.py at main · nickbroon/python-gitlab · GitHub

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