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configproxy.py
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configproxy.py 38.17 KiB
#!/usr/bin/env python3
import os
from common import auth
import logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
def split_line(line, max_length=76):
words = list(filter(None, map(str.strip, line.split(" "))))
lines = []
current_line = []
current_line_length = 0
for word in words:
if (current_line and current_line_length + len(word) + 1 > max_length):
lines.append(" ".join(current_line))
current_line = []
current_line_length = 0
current_line.append(word)
current_line_length += len(word) + 1
if current_line:
lines.append(" ".join(current_line))
return lines
def prefix_lines(lines, prefix="# "):
return map(lambda line: "".join((prefix, line)), lines)
class ConfigEntry:
def __init__(self, name, default, required=True, internal=True,
immutable=False, no_sane_default=False,
description=None, value=None):
self.name = name
self.default = default
self.required = required
self.internal = internal
self.immutable = immutable
self.no_sane_default = no_sane_default
self.description = description
self.value = value
def extract(self, config):
if self.immutable:
self.value = self.default
return
if not hasattr(config, self.name) and self.required:
raise ValueError(
"Missing required config entry {}!".format(self.name))
self.value = getattr(config, self.name, self.default)
if self.no_sane_default and self.value == self.default:
raise ValueError(
"You have not configured {}, which is required!".format(
self.name))
def get_example(self):
if self.immutable:
return []
lines = []
if self.description is not None:
lines.extend(prefix_lines(split_line(self.description)))
entry_line = "{} = {}".format(self.name, repr(self.default))
if not self.required:
entry_line = "# {}".format(entry_line)
lines.append(entry_line)
return lines
class ConfigSection:
def __init__(self, name, entries, check, description=None,
deactivatable=False, active=None, imports=None):
self.name = name
self.entries = entries
self.check = check
self.description = description
self.deactivatable = deactivatable
self.active = active
if isinstance(imports, str):
imports = [imports]
self.imports = imports
def extract(self, config):
if self.deactivatable:
self.active = getattr(config, "{}_ACTIVE".format(self.name), False)
if not self.active:
return
for entry in self.entries:
entry.extract(config)
def get_example(self):
lines = []
if self.imports:
lines.extend(self.imports)
header_line = (
"# [{}]".format(self.name) +
(" (optional)" if self.deactivatable else ""))
lines.append(header_line)
if self.description is not None:
lines.extend(prefix_lines(split_line(self.description)))
lines.append("")
if self.deactivatable:
lines.extend(prefix_lines(split_line("deactivate with")))
lines.append("# {}_ACTIVE = False".format(self.name))
lines.append("")
for entry in self.entries:
lines.extend(entry.get_example())
lines.append("")
lines.append("")
return "\n".join(lines)
def fill_modules(self, config, public_config):
if self.deactivatable:
setattr(config, "{}_ACTIVE".format(self.name), self.active)
setattr(public_config, "{}_ACTIVE".format(self.name), self.active)
if not self.active:
return
for entry in self.entries:
setattr(config, entry.name, entry.value)
if not entry.internal:
setattr(public_config, entry.name, entry.value)
def check_choice(option, value, choices):
if value not in choices:
raise ValueError(
"{} is not allowed choices! Should be one of {}, is {}".format(
option, choices, value))
def check_database(
SQLALCHEMY_DATABASE_URI,
SQLALCHEMY_TRACK_MODIFICATIONS):
from sqlalchemy_utils import database_exists
from sqlalchemy import exc
try:
if not database_exists(SQLALCHEMY_DATABASE_URI):
raise ValueError(
"The database '{}' does not exist! "
"Please configure it correctly or create it!".format(
SQLALCHEMY_DATABASE_URI))
except (exc.NoSuchModuleError, exc.OperationalError) as error:
raise ValueError(
"The database uri '{}' does not state a valid "
"database: {}".format(SQLALCHEMY_DATABASE_URI, error))
def check_security(SECRET_KEY, SECURITY_KEY, SESSION_PROTECTION):
MIN_KEY_LENGTH = 20
if len(SECRET_KEY) < MIN_KEY_LENGTH:
raise ValueError(
"Insufficient length of SECRET_KEY, should be at least {}!".format(
MIN_KEY_LENGTH))
if len(SECURITY_KEY) < MIN_KEY_LENGTH:
raise ValueError(
"Insufficient length of SECURITY_KEY, should be at "
"least {}!".format(
MIN_KEY_LENGTH))
check_choice("SESSION_PROTECTION", SESSION_PROTECTION, ["strong"])
def check_server_name(SERVER_NAME, PREFERRED_URL_SCHEME):
# todo: check ip address and server name
check_choice(
"PREFERRED_URL_SCHEME", PREFERRED_URL_SCHEME,
["http", "https"])
def check_debug(DEBUG):
if DEBUG:
logger.warning("DEBUG mode is activated!")
def check_celery(
CELERY_BROKER_URL, CELERY_TASK_SERIALIZER, CELERY_ACCEPT_CONTENT):
pass
# todo: check broker url
check_choice(
"CELERY_TASK_SERIALIZER", CELERY_TASK_SERIALIZER,
["pickle"])
check_choice(
"CELERY_ACCEPT_CONTENT", CELERY_ACCEPT_CONTENT,
[["pickle"]])
def check_sentry(SENTRY_DSN):
pass
def check_authentication(AUTH_MAX_DURATION, AUTH_BACKENDS):
if AUTH_MAX_DURATION <= 0:
raise ValueError(
"AUTH_MAX_DURATION should be positive, is {}!".format(
AUTH_MAX_DURATION))
if not AUTH_BACKENDS:
raise ValueError("No authentication backends have been configured!")
def check_error_report_context(ERROR_CONTEXT_LINES):
if ERROR_CONTEXT_LINES < 0:
raise ValueError(
"ERROR_CONTEXT_LINES should be positive, is {}!".format(
ERROR_CONTEXT_LINES))
def check_pagination(PAGE_LENGTH, PAGE_DIFF):
if PAGE_LENGTH <= 0:
raise ValueError(
"PAGE_LENGTH should be positive, is {}!".format(
PAGE_LENGTH))
if PAGE_DIFF < 0:
raise ValueError(
"PAGE_DIFF should be positive, is {}!".format(
PAGE_DIFF))
def check_index_page(
MAX_INDEX_DAYS, MAX_PAST_INDEX_DAYS,
MAX_PAST_INDEX_DAYS_BEFORE_REMINDER):
if MAX_INDEX_DAYS < 0:
raise ValueError(
"MAX_INDEX_DAYS should be positive, is {}!".format(
MAX_INDEX_DAYS))
if MAX_PAST_INDEX_DAYS < 0:
raise ValueError(
"MAX_PAST_INDEX_DAYS should be positive, is {}!".format(
MAX_PAST_INDEX_DAYS))
if MAX_PAST_INDEX_DAYS_BEFORE_REMINDER < 0:
raise ValueError(
"MAX_PAST_INDEX_DAYS_BEFORE_REMINDER should be "
"positive, is {}!".format(
MAX_PAST_INDEX_DAYS_BEFORE_REMINDER))
def check_admin_data(ADMIN_MAIL, ADMIN_GROUP):
if not ADMIN_MAIL:
raise ValueError("No admin mail address given!")
if not ADMIN_GROUP:
raise ValueError("No admin group given!")
def check_parser(PARSER_LAZY, FUZZY_MIN_SCORE, PRIVATE_KEYWORDS):
if PARSER_LAZY:
logger.warning(
"Parser lazy mode is activated, this is not meant or useful "
"for production operation!")
if not 0 <= FUZZY_MIN_SCORE <= 100:
raise ValueError(
"FUZZY_MIN_SCORE should be a percentage from 0 to 100")
for keyword in PRIVATE_KEYWORDS:
if not keyword:
raise ValueError("Invalid private keyword given: {}".format(
keyword))
def check_rendering(
FONTS, DOCUMENTS_PATH, LATEX_BULLETPOINTS, HTML_LEVEL_OFFSET,
LATEX_LOCAL_TEMPLATES, LATEX_LOGO_TEMPLATE, LATEX_GEOMETRY,
LATEX_PAGESTYLE, LATEX_HEADER_FOOTER, LATEX_ADDITIONAL_PACKAGES,
LATEX_TEMPLATES):
for key in ("main", "roman", "sans", "mono"):
if key not in FONTS:
raise ValueError("No font for type {} given!".format(key))
try:
path = FONTS[key]["path"]
extension = FONTS[key]["extension"]
for face in ("regular", "bold", "italic", "bolditalic"):
if face not in FONTS[key]:
raise ValueError("Missing fontface {} for {} font!".format(
face, key))
filepath = os.path.join(
path, "".join((FONTS[key][face], extension)))
if not os.path.exists(filepath):
raise ValueError(
"Font {} does not exist in the filesystem! "
"Expected it at {}".format(
FONTS[key][face], filepath))
except KeyError:
raise ValueError(
"Missing path information in font specification "
"{key}: ".format(key=key))
if not os.path.isdir(DOCUMENTS_PATH):
raise ValueError(
"Document savedir does not exist! Should be at {}.".format(
DOCUMENTS_PATH))
if not LATEX_BULLETPOINTS:
raise ValueError("LATEX_BULLETPOINTS is empty.")
if not 1 <= HTML_LEVEL_OFFSET <= 4:
raise ValueError(
"HTML_LEVEL_OFFSET should be from 1 to 4, but is {}".format(
HTML_LEVEL_OFFSET))
# todo: check templates stuff
def check_mail(MAIL_FROM, MAIL_HOST, MAIL_USER, MAIL_PASSWORD,
MAIL_USE_TLS, MAIL_USE_STARTTLS):
if MAIL_USE_TLS and MAIL_USE_STARTTLS:
raise ValueError(
"Both TLS and STARTTLS are set for Mail! Please set only one.")
from utils import MailManager
import socket
import smtplib
import ssl
mail_config = Config()
mail_config.MAIL_ACTIVE = True
mail_config.MAIL_FROM = MAIL_FROM
mail_config.MAIL_HOST = MAIL_HOST
mail_config.MAIL_USER = MAIL_USER
mail_config.MAIL_PASSWORD = MAIL_PASSWORD
mail_config.MAIL_USE_TLS = MAIL_USE_TLS
mail_config.MAIL_USE_STARTTLS = MAIL_USE_STARTTLS
mail_manager = MailManager(mail_config)
try:
if not mail_manager.check():
raise ValueError("The mail connection is improperly configured.")
except (ConnectionRefusedError, socket.gaierror) as error:
raise ValueError("Mail Cannot connect to the server: {}".format(error))
except smtplib.SMTPAuthenticationError as error:
raise ValueError("Mail Cannot authenticate: {}".format(error))
except (ssl.SSLError, smtplib.SMTPNotSupportedError) as error:
raise ValueError("TLS for Mail does not work: {}".format(error))
except Exception as error:
raise ValueError(
"Testing the mail connection failed: {}".format(error))
def check_printing(PRINTING_SERVER, PRINTING_USER, PRINTING_PRINTERS):
LPR_PATH = "/usr/bin/lpr"
LPSTAT_PATH = "/usr/bin/lpstat"
LPOPTIONS_PATH = "/usr/bin/lpoptions"
for path in [LPR_PATH, LPSTAT_PATH, LPOPTIONS_PATH]:
if not os.path.exists(path):
raise ValueError(
"{} is not installed! It is required for printing".format(
path))
import subprocess as sp
list_printers_command = [LPSTAT_PATH, "-h", PRINTING_SERVER, "-p"]
raw_printers = sp.check_output(list_printers_command).decode("utf-8")
printers = [
line.split(" ")[1].lower()
for line in raw_printers.splitlines()
if not line.startswith(" ")
]
configured_printers = [key.lower() for key in PRINTING_PRINTERS]
missing_printers = set(configured_printers) - set(printers)
if missing_printers:
raise ValueError(
"Some configured printers are not available: {}, "
"available are: {}".format(
missing_printers, printers))
def _strip_star(value):
if value.startswith("*"):
return value[1:]
return value
for printer in configured_printers:
options_command = [
LPOPTIONS_PATH, "-h", PRINTING_SERVER, "-p", printer, "-l"]
raw_options = sp.check_output(options_command).decode("utf-8")
available_options = {}
for line in raw_options.splitlines():
name_part, value_part = line.split(":")
values = list(map(_strip_star, value_part.strip().split(" ")))
for name in name_part.split("/"):
available_options[name] = values
for option in PRINTING_PRINTERS[printer]:
name, value = option.split("=")
if name not in available_options:
logger.warning(
"Printer {} has unknown option {} set!".format(
printer, name))
elif value not in available_options[name]:
logger.warning(
"Printer {} has the invalid value {} specified "
"for option {}! Valid values are {}.".format(
printer, value, name, available_options[name]))
def check_etherpad(ETHERPAD_URL, EMPTY_ETHERPAD):
import requests
key = "Server"
try:
answer = requests.get(ETHERPAD_URL)
if answer.status_code != 200:
raise ValueError(
"The etherpad does not return 200 OK at {}".format(
ETHERPAD_URL))
headers = answer.headers
if key not in headers or "Etherpad" not in headers[key]:
raise ValueError("{} does not look like an etherpad!".format(
ETHERPAD_URL))
except requests.exceptions.ConnectionError as error:
raise ValueError("Cannot connect to the etherpad at {}: {}".format(
ETHERPAD_URL, error))
def check_wiki(
WIKI_TYPE, WIKI_API_URL, WIKI_ANONYMOUS,
WIKI_USER, WIKI_PASSWORD, WIKI_DOMAIN):
check_choice("WIKI_TYPE", WIKI_TYPE, ["MEDIAWIKI", "DOKUWIKI"])
# todo: check the connection
def check_calendar(
CALENDAR_URL, CALENDAR_DEFAULT_DURATION, CALENDAR_MAX_REQUESTS):
from calendarpush import Client, CalendarException
try:
client = Client(url=CALENDAR_URL)
client.get_calendars()
except (KeyError, CalendarException) as error:
raise ValueError("Cannot connect to the calendar at {}!".format(
CALENDAR_URL))
def check_timezone(CALENDAR_TIMEZONE_MAP):
pass
CONFIG_SECTIONS = [
ConfigSection(
name="Database",
entries=[
ConfigEntry(
name="SQLALCHEMY_DATABASE_URI",
default="engine://user:password@host/database",
required=True, internal=True, no_sane_default=True,
description=(
"Database connection string. See "
"http://docs.sqlalchemy.org/en/latest/core/engines.html "
"for details. SQLite does not work with Alembic "
"migrations.")),
ConfigEntry(
name="SQLALCHEMY_TRACK_MODIFICATIONS",
default=False,
required=False, internal=True, immutable=True,
description="Necessary option. Do not change."),
],
check=check_database,
description="Settings for SQLAlchemy"),
ConfigSection(
name="Security",
entries=[
ConfigEntry(
name="SECRET_KEY",
default=os.urandom(128),
required=True, internal=True,
description="Secret random key used for session security."),
ConfigEntry(
name="SECURITY_KEY",
default=os.urandom(128),
required=True, internal=True,
description="Secret random key used for user sessions."),
ConfigEntry(
name="SESSION_PROTECTION",
default="strong",
required=False, internal=True, immutable=True,
description="Flask setting for sessions. Do not change."),
],
check=check_security,
description="Secret keys and random strings"),
ConfigSection(
name="URL Root",
entries=[
ConfigEntry(
name="SERVER_NAME",
default="protokolle.example.com",
required=True, internal=False, no_sane_default=True,
description="Domain on which this website is hosted"),
ConfigEntry(
name="PREFERRED_URL_SCHEME",
default="https",
required=False, internal=False,
description="Protocol used by this website. "
"Either 'http' or 'https'."),
ConfigEntry(
name="CDN_URL",
default=None,
required=False, internal=False,
description="URL to get bootstrap and jQuery from.")
],
check=check_server_name,
description="Where is the website hosted"),
ConfigSection(
name="Debug",
entries=[
ConfigEntry(
name="DEBUG",
default=False,
required=False, internal=True,
description="Activate debug mode"),
],
check=check_debug,
description="Debug mode. Do not set in production."),
ConfigSection(
name="Celery",
entries=[
ConfigEntry(
name="CELERY_BROKER_URL",
default="redis://localhost:6379/0",
required=True, internal=True,
description=(
"Connection to the celery broker. See http://docs.celery"
"project.org/en/latest/userguide/configuration.html")),
ConfigEntry(
name="CELERY_TASK_SERIALIZER",
default="pickle",
required=False, internal=True, immutable=True,
description="How celery serializes tasks. Do not change."),
ConfigEntry(
name="CELERY_ACCEPT_CONTENT",
default=['pickle'],
required=False, internal=True, immutable=True,
description="How celery deserializes tasks. Do not change."),
],
check=check_celery,
description="Settings for the task scheduler."),
ConfigSection(
name="Sentry",
entries=[
ConfigEntry(
name="SENTRY_DSN",
default=None,
required=False, internal=True,
description=(
"Connection string for sentry. See "
"https://docs.sentry.io/quickstart/#configure-the-dsn")),
],
check=check_sentry,
description="Connection information for sentry exception reporting."),
ConfigSection(
name="Authentication",
entries=[
ConfigEntry(
name="AUTH_MAX_DURATION",
default=300,
required=False, internal=False,
description="Time in seconds for which non-permanent "
"sessions remain valid"),
ConfigEntry(
name="AUTH_BACKENDS",
default=[
auth.StaticUserManager((("user", "password", ["group"]),)),
],
required=True, internal=True, no_sane_default=True,
description="Active Authentication backends"),
],
check=check_authentication,
description="User Authentication backend settings.",
imports="from common import auth"),
ConfigSection(
name="Error Report Context",
entries=[
ConfigEntry(
name="ERROR_CONTEXT_LINES",
default=3,
required=False, internal=False,
description=(
"Number of lines before and after an error to include "
"in the error description")),
],
check=check_error_report_context,
description="Compiling error context settings"),
ConfigSection(
name="Pagination",
entries=[
ConfigEntry(
name="PAGE_LENGTH",
default=20,
required=False, internal=False,
description="Default number of entries per page"),
ConfigEntry(
name="PAGE_DIFF",
default=3,
required=False, internal=False,
description=(
"Number of pages before and after the current one "
"with a direct link.")),
],
check=check_pagination,
description="Pagination settings, used for list pages"),
ConfigSection(
name="Index Page",
entries=[
ConfigEntry(
name="MAX_INDEX_DAYS",
default=14,
required=False, internal=False,
description="Next days to list upcoming meetings on"),
ConfigEntry(
name="MAX_PAST_INDEX_DAYS",
default=2,
required=False, internal=False,
description="Past days to list unfinished meetings on"),
ConfigEntry(
name="MAX_PAST_INDEX_DAYS_BEFORE_REMINDER",
default=14,
required=False, internal=True,
description=(
"If a meeting is unfinished this many days after its "
"date, a reminder is sent by mail")),
],
check=check_index_page,
description="Settings for what to show on the index page"),
ConfigSection(
name="Admin data",
entries=[
ConfigEntry(
name="ADMIN_MAIL",
default="admin@example.com",
required=True, internal=False, no_sane_default=True,
description="Mail address to tell users to "
"contact in case of errors"),
ConfigEntry(
name="ADMIN_GROUP",
default="admin",
required=True, internal=False,
description="Users with this group are admins and are "
"allowed to do and see everything."),
],
check=check_admin_data,
description="Settings for who is an admin and how to contact them"),
ConfigSection(
name="Parser",
entries=[
ConfigEntry(
name="PARSER_LAZY",
default=False,
required=False, internal=False,
description="Do not enforce some parser policies."),
ConfigEntry(
name="FUZZY_MIN_SCORE",
default=90,
required=False, internal=False,
description="Todos with at least this equality score are "
"considered equal whe importing old protocols."),
ConfigEntry(
name="PRIVATE_KEYWORDS",
default=["private", "internal", "privat", "intern"],
required=False, internal=False,
description="Keywords indicating private protocol parts"),
],
check=check_parser,
description="Settings for the protocol syntax parser"),
ConfigSection(
name="Rendering",
entries=[
ConfigEntry(
name="FONTS",
default={
"main": {
"extension": ".otf",
"path": "/usr/share/fonts/gsfonts/",
"regular": "NimbusSans-Regular",
"bold": "NimbusSans-Bold",
"italic": "NimbusSans-Italic",
"bolditalic": "NimbusSans-BoldItalic"
},
"roman": {
"extension": ".otf",
"path": "/usr/share/fonts/gsfonts/",
"regular": "NimbusRoman-Regular",
"bold": "NimbusRoman-Bold",
"italic": "NimbusRoman-Italic",
"bolditalic": "NimbusRoman-BoldItalic"
},
"sans": {
"extension": ".otf",
"path": "/usr/share/fonts/gsfonts/",
"regular": "NimbusSans-Regular",
"bold": "NimbusSans-Bold",
"italic": "NimbusSans-Italic",
"bolditalic": "NimbusSans-BoldItalic"
},
"mono": {
"extension": ".otf",
"path": "/usr/share/fonts/gsfonts/",
"regular": "NimbusMonoPS-Regular",
"bold": "NimbusMonoPS-Bold",
"italic": "NimbusMonoPS-Italic",
"bolditalic": "NimbusMonoPS-BoldItalic"
}
},
required=True, internal=False,
description="fonts for xelatex"),
ConfigEntry(
name="DOCUMENTS_PATH",
default="documents",
required=False, internal=True,
description="Path to the directory to save protocols in. "
"Write access is necessary."),
ConfigEntry(
name="LATEX_BULLETPOINTS",
default=[
r"\textbullet", r"\normalfont \bfseries \textendash",
r"\textasteriskcentered", r"\textperiodcentered"],
required=False, internal=False,
description="list of bulletpoints to use in latex"),
ConfigEntry(
name="HTML_LEVEL_OFFSET",
default=3,
required=False, internal=False,
description="Header level at which to start with "
"HTML headlines"),
ConfigEntry(
name="LATEX_LOCAL_TEMPLATES",
default=None,
required=False, internal=False,
description="path to additional jinja2 templates"),
ConfigEntry(
name="LATEX_LOGO_TEMPLATE",
default=None,
required=False, internal=False,
description="template to include at the top of protocols"),
ConfigEntry(
name="LATEX_GEOMETRY",
default="vmargin=1.5cm,hmargin={1.5cm,1.2cm},"
"bindingoffset=8mm",
required=False, internal=False,
description="custom latex page geometry"),
ConfigEntry(
name="LATEX_PAGESTYLE",
default=None,
required=False, internal=False,
description="custom latex pagestyle, e.g. 'fancy'"),
ConfigEntry(
name="LATEX_HEADER_FOOTER",
default=False,
required=False, internal=False,
description="Include a header and footer in protocols"),
ConfigEntry(
name="LATEX_ADDITIONAL_PACKAGES",
default=None,
required=False, internal=False,
description="Include additional latex packages in protocols"),
ConfigEntry(
name="LATEX_TEMPLATES",
default=None,
required=False, internal=False,
description=(
"define multiple LaTeX-templates to use with a each "
"protocol type individually overriding the general LATEX "
"options the LATEX_LOCAL_TEMPLATES parameter is need to "
"provide the path for the templates each template must "
"be placed in an individual folder named by its ID in "
"LATEX_TEMPLATES and must contain the provided template "
"files: e.g. the files for the template 'yourtemplate' "
"need to be in the folder named 'yourtemplate', and the "
"templates provides the files: 'protokoll2.cls' (class), "
"'protocol.tex' (protocol), 'decision.tex' (decision) and "
"'asta-logo.tex'")),
],
check=check_rendering,
description="Settings for rendering protocols to pdf, html, etc."),
ConfigSection(
name="MAIL",
entries=[
ConfigEntry(
name="MAIL_FROM",
default="protokolle@example.com",
required=True, internal=False, no_sane_default=True,
description="Mail sender address"),
ConfigEntry(
name="MAIL_HOST",
default="mail.example.com:465",
required=True, internal=True, no_sane_default=True,
description="SMTP Mail server address with port"),
ConfigEntry(
name="MAIL_USER",
default="",
required=False, internal=True,
description="Mail server login user. "
"Empty for no authentication."),
ConfigEntry(
name="MAIL_PASSWORD",
default="",
required=False, internal=True,
description="Mail server login password. "
"Empty for no authentication."),
ConfigEntry(
name="MAIL_USE_TLS",
default=True,
required=False, internal=True,
description="Use SMPTS (not STARTTLS). Should match port."),
ConfigEntry(
name="MAIL_USE_STARTTLS",
default=False,
required=False, internal=True,
description="Use SMTP with STARTTLS. Should match port."),
],
check=check_mail,
deactivatable=True,
description="Mail server connection"),
ConfigSection(
name="PRINTING",
entries=[
ConfigEntry(
name="PRINTING_SERVER",
default="printsrv.example.com:631",
required=True, internal=True, no_sane_default=True,
description="CUPS printserver connection"),
ConfigEntry(
name="PRINTING_USER",
default="protocols",
required=False, internal=True,
description="CUPS user for print jobs"),
ConfigEntry(
name="PRINTING_PRINTERS",
default={
"example_printer":
["Duplex=DuplexNoTumble", "option2=value"],
"other_printer": ["list", "of", "options"],
},
required=True, internal=False, no_sane_default=True,
description="printers with corresponding options"),
],
check=check_printing,
deactivatable=True,
description="CUPS printing settings"),
ConfigSection(
name="ETHERPAD",
entries=[
ConfigEntry(
name="ETHERPAD_URL",
default="https://example.com/etherpad",
required=True, internal=False, no_sane_default=True,
description=(
"URL of the etherpad installation. "
"Do not include the '/p'!")),
ConfigEntry(
name="EMPTY_ETHERPAD",
default="\n".join([
"Welcome to Etherpad!",
"",
"This pad text is synchronized as you type, so that "
"everyone viewing this page sees the same text. This "
"allows you to collaborate seamlessly on documents!",
"",
"Get involved with Etherpad at http://etherpad.org",
""
]),
required=False, internal=False,
description="The content a new etherpad contains."),
],
check=check_etherpad,
deactivatable=True,
description="Etherpad settings"),
ConfigSection(
name="WIKI",
entries=[
ConfigEntry(
name="WIKI_TYPE",
default="MEDIAWIKI",
required=True, internal=False,
description="'MEDIAWIKI' or 'DOKUWIKI'"),
ConfigEntry(
name="WIKI_API_URL",
default="https://wiki.example.com/wiki/api.php",
required=True, internal=True, no_sane_default=True,
description=(
"API Endpoint for Mediawiki, "
"'https://user:password@wiki.example.com/lib/exe/"
"xmlrpc.php' for Dokuwiki")),
ConfigEntry(
name="WIKI_ANONYMOUS",
default=False,
required=False, internal=True,
description="Skip login (only for Mediawiki)"),
ConfigEntry(
name="WIKI_USER",
default=None,
required=False, internal=True,
description="Login user (only for Mediawiki)"),
ConfigEntry(
name="WIKI_PASSWORD",
default=None,
required=False, internal=True,
description="Login password (only for Mediawiki)"),
ConfigEntry(
name="WIKI_DOMAIN",
default=None,
required=False, internal=True,
description="Login domain (only for Mediawiki)"),
],
check=check_wiki,
deactivatable=True,
description="Mediawiki or Dokuwiki settings"),
ConfigSection(
name="CALENDAR",
entries=[
ConfigEntry(
name="CALENDAR_URL",
default="https://user:password@calendar.example.com/dav/",
required=True, internal=True, no_sane_default=True,
description="CalDAV server URL"),
ConfigEntry(
name="CALENDAR_DEFAULT_DURATION",
default=3,
required=False, internal=False,
description="Default meeting length in hours"),
ConfigEntry(
name="CALENDAR_MAX_REQUESTS",
default=10,
required=False, internal=False,
description=(
"Number of retries before giving a connection attempt up. "
"Some CalDAV servers reply randomly with errors.")),
],
check=check_calendar,
deactivatable=True,
description="CalDAV settings"),
ConfigSection(
name="TIMEZONE",
entries=[
ConfigEntry(
name="CALENDAR_TIMEZONE_MAP",
default={
"CET": "Europe/Berlin",
"CEST": "Europe/Berline",
},
required=False, internal=False,
description="Timezone abbreviation map. Add as needed."),
],
check=check_timezone,
description="Settings for translating timezone information."),
]
class Config:
def __init__(self, data=None):
if data is None:
data = {}
object.__setattr__(self, "data", data)
def __setattr__(self, key, value):
self.data[key] = value
def __getattr__(self, key):
try:
return self.data[key]
except KeyError:
raise AttributeError
def __dir__(self):
return self.data.keys()
def import_config(sections=CONFIG_SECTIONS):
import config
for section in sections:
section.extract(config)
internal_config, public_config = Config(), Config()
for section in sections:
section.fill_modules(internal_config, public_config)
return internal_config, public_config
def check_config(sections=CONFIG_SECTIONS):
import config
successful = True
for section in sections:
section.extract(config)
if not section.deactivatable or section.active:
logger.info("Checking {}".format(section.name))
try:
section.check(
**{entry.name: entry.value for entry in section.entries})
except ValueError as error:
logger.error(error.args[0])
successful = False
return successful
def write_example_config(
sections=CONFIG_SECTIONS, filename="config.py.example"):
example_config = "\n".join([
section.get_example()
for section in sections
])
with open(filename, "w") as example_config_file:
example_config_file.write(example_config)
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Create and check the config")
subparsers = parser.add_subparsers(dest="command")
subparsers.required = True
check_parser = subparsers.add_parser("check")
check_parser.add_argument(
"--log-level", choices=["error", "warning", "info", "debug"])
create_parser = subparsers.add_parser("create")
create_parser.add_argument("--filename", default="config.py.example")
show_parser = subparsers.add_parser("show")
arguments = parser.parse_args()
if arguments.command == "check":
if arguments.log_level:
logger.setLevel(arguments.log_level.upper())
sys.exit(not check_config())
elif arguments.command == "create":
filename = arguments.filename
write_example_config(filename=filename)
print("An example config has been generated at {}. "
"Please change the requried entries.".format(filename))
elif arguments.command == "show":
import pprint
internal_config, public_config = import_config()
print("The complete config is:")
pprint.pprint(internal_config.data)
print("The public part is:")
pprint.pprint(public_config.data)