realms-wiki/realms/lib/util.py
2015-12-09 17:41:15 -06:00

202 lines
3.8 KiB
Python

import click
import re
import os
import hashlib
import json
import string
import random
import sys
from jinja2 import Template
class AttrDict(dict):
def __init__(self, *args, **kwargs):
super(AttrDict, self).__init__(*args, **kwargs)
self.__dict__ = self
def random_string(size=6, chars=string.ascii_lowercase + string.ascii_uppercase + string.digits):
return ''.join(random.choice(chars) for _ in range(size))
def to_json(data):
return json.dumps(to_dict(data), separators=(',', ':'))
def to_dict(data):
if not data:
return AttrDict()
def row2dict(row):
d = AttrDict()
for column in row.__table__.columns:
d[column.name] = getattr(row, column.name)
return d
if isinstance(data, list):
return [row2dict(x) for x in data]
else:
return row2dict(data)
def mkdir_safe(path):
if path and not(os.path.exists(path)):
os.makedirs(path)
return path
def extract_path(file_path):
if not file_path:
return None
last_slash = file_path.rindex("/")
if last_slash:
return file_path[0, last_slash]
def clean_path(path):
if path:
if path[0] != '/':
path.insert(0, '/')
return re.sub(r"//+", '/', path)
def extract_name(file_path):
if file_path[-1] == "/":
return None
return os.path.basename(file_path)
def remove_ext(path):
return os.path.splitext(path)[0]
def clean_url(url):
if not url:
return url
url = url.replace('%2F', '/')
url = re.sub(r"^/+", "", url)
return re.sub(r"//+", '/', url)
def to_canonical(s):
"""
Remove leading/trailing whitespace
Remove leading underscores and backslashes "/"
Convert spaces to dashes "-"
Limit to first 128 chars
"""
reserved_chars = "&$+,:;=?@#"
unsafe_chars = "?<>[]{}|\^~%"
s = s.encode('utf8')
s = str(s)
s = s.strip()
s = s.lstrip('_')
s = s.lstrip('/')
s = re.sub(r"\s", "-", s)
s = re.sub(r"/+", "/", s)
s = re.sub(r"[" + re.escape(reserved_chars) + "]", "", s)
s = re.sub(r"[" + re.escape(unsafe_chars) + "]", "", s)
s = s[:128]
return s
def cname_to_filename(cname):
""" Convert canonical name to filename
:param cname: Canonical name
:return: str -- Filename
"""
return cname + ".md"
def filename_to_cname(filename):
"""Convert filename to canonical name.
.. note::
It's assumed filename is already canonical format
"""
return os.path.splitext(filename)[0]
def gravatar_url(email):
email = hashlib.md5(email).hexdigest() if email else "default@realms.io"
return "https://www.gravatar.com/avatar/" + email
def in_virtualenv():
return hasattr(sys, 'real_prefix')
def in_vagrant():
return os.path.isdir("/vagrant")
def is_su():
return os.geteuid() == 0
def green(s):
click.secho(s, fg='green')
def yellow(s):
click.secho(s, fg='yellow')
def red(s):
click.secho(s, fg='red')
def upstart_script(user='root', app_dir=None, port=5000, workers=2, path=None):
script = """
limit nofile 65335 65335
respawn
description "Realms Wiki"
author "scragg@gmail.com"
chdir {{ app_dir }}
{% if path %}
env PATH={{ path }}:/usr/local/bin:/usr/bin:/bin:$PATH
export PATH
{% endif %}
env LC_ALL=en_US.UTF-8
env GEVENT_RESOLVER=ares
export LC_ALL
export GEVENT_RESOLVER
setuid {{ user }}
setgid {{ user }}
start on runlevel [2345]
stop on runlevel [!2345]
respawn
exec gunicorn \
--name realms-wiki \
--access-logfile - \
--error-logfile - \
--worker-class gevent \
--workers {{ workers }} \
--bind 0.0.0.0:{{ port }} \
--user {{ user }} \
--group {{ user }} \
--chdir {{ app_dir }} \
'realms:create_app()'
"""
template = Template(script)
return template.render(user=user, app_dir=app_dir, port=port, workers=workers, path=path)