Changeset - e8e1bf4743df
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Mads Kiilerich - 6 years ago 2019-12-16 01:14:47
mads@kiilerich.com
Grafted from: 290bf75b3f68
lib: only maintain one copy of safe_str / safe_unicode

The standalone-ish nature of vcs gets a bit in the way. It already depends on
some very generic Kallithea functionality. But for now, avoid code duplication,
and let Kallithea use vcs functionality instead of duplicating it.
1 file changed with 1 insertions and 89 deletions:
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kallithea/lib/utils2.py
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@@ -22,48 +22,49 @@ models, controllers, etc.  to prevent im
 
This file was forked by the Kallithea project in July 2014.
 
Original author and date, and relevant copyright and licensing information is below:
 
:created_on: Jan 5, 2011
 
:author: marcink
 
:copyright: (c) 2013 RhodeCode GmbH, and others.
 
:license: GPLv3, see LICENSE.md for more details.
 
"""
 

	
 
from __future__ import print_function
 

	
 
import binascii
 
import datetime
 
import os
 
import pwd
 
import re
 
import time
 
import urllib
 

	
 
import urlobject
 
from tg.i18n import ugettext as _
 
from tg.i18n import ungettext
 
from webhelpers2.text import collapse, remove_formatting, strip_tags
 

	
 
from kallithea.lib.compat import json
 
from kallithea.lib.vcs.utils import safe_str, safe_unicode  # re-export
 
from kallithea.lib.vcs.utils.lazy import LazyProperty
 

	
 

	
 
def str2bool(_str):
 
    """
 
    returns True/False value from given string, it tries to translate the
 
    string into boolean
 

	
 
    :param _str: string value to translate into boolean
 
    :rtype: boolean
 
    :returns: boolean from given string
 
    """
 
    if _str is None:
 
        return False
 
    if _str in (True, False):
 
        return _str
 
    _str = str(_str).strip().lower()
 
    return _str in ('t', 'true', 'y', 'yes', 'on', '1')
 

	
 

	
 
def aslist(obj, sep=None, strip=True):
 
    """
 
    Returns given string separated by sep as list
 

	
 
@@ -141,137 +142,48 @@ def generate_api_key():
 

	
 
        unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
 
    """
 
    # Hexadecimal certainly qualifies as URL-safe.
 
    return binascii.hexlify(os.urandom(20))
 

	
 

	
 
def safe_int(val, default=None):
 
    """
 
    Returns int() of val if val is not convertable to int use default
 
    instead
 

	
 
    :param val:
 
    :param default:
 
    """
 

	
 
    try:
 
        val = int(val)
 
    except (ValueError, TypeError):
 
        val = default
 

	
 
    return val
 

	
 

	
 
def safe_unicode(str_, from_encoding=None):
 
    """
 
    safe unicode function. Does few trick to turn str_ into unicode
 

	
 
    In case of UnicodeDecode error we try to return it with encoding detected
 
    by chardet library if it fails fallback to unicode with errors replaced
 

	
 
    :param str_: string to decode
 
    :rtype: unicode
 
    :returns: unicode object
 
    """
 
    if isinstance(str_, unicode):
 
        return str_
 

	
 
    if not from_encoding:
 
        import kallithea
 
        DEFAULT_ENCODINGS = aslist(kallithea.CONFIG.get('default_encoding',
 
                                                        'utf-8'), sep=',')
 
        from_encoding = DEFAULT_ENCODINGS
 

	
 
    if not isinstance(from_encoding, (list, tuple)):
 
        from_encoding = [from_encoding]
 

	
 
    try:
 
        return unicode(str_)
 
    except UnicodeDecodeError:
 
        pass
 

	
 
    for enc in from_encoding:
 
        try:
 
            return unicode(str_, enc)
 
        except UnicodeDecodeError:
 
            pass
 

	
 
    try:
 
        import chardet
 
        encoding = chardet.detect(str_)['encoding']
 
        if encoding is None:
 
            raise Exception()
 
        return str_.decode(encoding)
 
    except (ImportError, UnicodeDecodeError, Exception):
 
        return unicode(str_, from_encoding[0], 'replace')
 

	
 

	
 
def safe_str(unicode_, to_encoding=None):
 
    """
 
    safe str function. Does few trick to turn unicode_ into string
 

	
 
    In case of UnicodeEncodeError we try to return it with encoding detected
 
    by chardet library if it fails fallback to string with errors replaced
 

	
 
    :param unicode_: unicode to encode
 
    :rtype: str
 
    :returns: str object
 
    """
 

	
 
    # if it's not basestr cast to str
 
    if not isinstance(unicode_, basestring):
 
        return str(unicode_)
 

	
 
    if isinstance(unicode_, str):
 
        return unicode_
 

	
 
    if not to_encoding:
 
        import kallithea
 
        DEFAULT_ENCODINGS = aslist(kallithea.CONFIG.get('default_encoding',
 
                                                        'utf-8'), sep=',')
 
        to_encoding = DEFAULT_ENCODINGS
 

	
 
    if not isinstance(to_encoding, (list, tuple)):
 
        to_encoding = [to_encoding]
 

	
 
    for enc in to_encoding:
 
        try:
 
            return unicode_.encode(enc)
 
        except UnicodeEncodeError:
 
            pass
 

	
 
    try:
 
        import chardet
 
        encoding = chardet.detect(unicode_)['encoding']
 
        if encoding is None:
 
            raise UnicodeEncodeError()
 

	
 
        return unicode_.encode(encoding)
 
    except (ImportError, UnicodeEncodeError):
 
        return unicode_.encode(to_encoding[0], 'replace')
 

	
 

	
 
def remove_suffix(s, suffix):
 
    if s.endswith(suffix):
 
        s = s[:-1 * len(suffix)]
 
    return s
 

	
 

	
 
def remove_prefix(s, prefix):
 
    if s.startswith(prefix):
 
        s = s[len(prefix):]
 
    return s
 

	
 

	
 
def age(prevdate, show_short_version=False, now=None):
 
    """
 
    turns a datetime into an age string.
 
    If show_short_version is True, then it will generate a not so accurate but shorter string,
 
    example: 2days ago, instead of 2 days and 23 hours ago.
 

	
 
    :param prevdate: datetime object
 
    :param show_short_version: if it should approximate the date and return a shorter string
 
    :rtype: unicode
 
    :returns: unicode words describing age
 
    """
 
    now = now or datetime.datetime.now()
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