realms-wiki/realms/lib/util.py
2013-12-03 14:09:57 -06:00

129 lines
2.7 KiB
Python

import re
import os
import hashlib
import json
from flask import request
from recaptcha.client import captcha
from realms import config
from realms.lib.services import cache
def cache_it(fn):
def wrap(*args, **kw):
key = "%s:%s" % (args[0].table, args[1])
data = cache.get(key)
# Assume strings are JSON encoded
try:
data = json.loads(data)
except TypeError:
pass
except ValueError:
pass
if data is not None:
return data
else:
data = fn(*args)
print data
ret = data
if data is None:
data = ''
if not isinstance(data, basestring):
try:
data = json.dumps(data, separators=(',', ':'))
except TypeError:
pass
cache.set(key, data)
return ret
return wrap
def to_json(res, first=False):
"""
Jsonify query result.
"""
res = to_dict(res, first)
return json.dumps(res, separators=(',', ':'))
def to_dict(cur, first=False):
if not cur:
return None
ret = []
for row in cur:
ret.append(row)
if ret and first:
return ret[0]
else:
return ret
def validate_captcha():
response = captcha.submit(
request.form['recaptcha_challenge_field'],
request.form['recaptcha_response_field'],
config.RECAPTCHA_PRIVATE_KEY,
request.remote_addr)
return response.is_valid
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):
"""
Double space -> single dash
Double dash -> single dash
Remove all non alphanumeric and dash
Limit to first 64 chars
"""
s = s.encode('ascii', 'ignore')
s = str(s)
s = re.sub(r"\s\s*", "-", s)
s = re.sub(r"\-\-+", "-", s)
s = re.sub(r"[^a-zA-Z0-9\-]", "", s)
s = s[:64]
return s
def gravatar_url(email):
return "//www.gravatar.com/avatar/" + hashlib.md5(email).hexdigest()