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Merge pull request #766 from glic3rinu/master
Refactored urlize_quoted_links based on Dango 1.5 urlize
This commit is contained in:
Tom Christie
commit
ff3ebd979d
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@ -395,6 +395,37 @@ except ImportError:
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kw = dict((k, int(v)) for k, v in kw.iteritems() if v is not None)
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return datetime.datetime(**kw)
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# smart_urlquote is new on Django 1.4
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try:
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from django.utils.html import smart_urlquote
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except ImportError:
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try:
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from urllib.parse import quote, urlsplit, urlunsplit
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except ImportError: # Python 2
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from urllib import quote
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from urlparse import urlsplit, urlunsplit
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def smart_urlquote(url):
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"Quotes a URL if it isn't already quoted."
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# Handle IDN before quoting.
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scheme, netloc, path, query, fragment = urlsplit(url)
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try:
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netloc = netloc.encode('idna').decode('ascii') # IDN -> ACE
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except UnicodeError: # invalid domain part
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pass
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else:
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url = urlunsplit((scheme, netloc, path, query, fragment))
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# An URL is considered unquoted if it contains no % characters or
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# contains a % not followed by two hexadecimal digits. See #9655.
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if '%' not in url or unquoted_percents_re.search(url):
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# See http://bugs.python.org/issue2637
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url = quote(force_bytes(url), safe=b'!*\'();:@&=+$,/?#[]~')
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return force_text(url)
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# Markdown is optional
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try:
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import markdown
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@ -4,11 +4,8 @@ from django.core.urlresolvers import reverse, NoReverseMatch
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from django.http import QueryDict
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from django.utils.html import escape
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from django.utils.safestring import SafeData, mark_safe
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from rest_framework.compat import urlparse
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from rest_framework.compat import force_text
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from rest_framework.compat import six
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import re
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import string
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from rest_framework.compat import urlparse, force_text, six, smart_urlquote
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import re, string
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register = template.Library()
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@ -112,22 +109,6 @@ def replace_query_param(url, key, val):
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class_re = re.compile(r'(?<=class=["\'])(.*)(?=["\'])')
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# Bunch of stuff cloned from urlize
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LEADING_PUNCTUATION = ['(', '<', '<', '"', "'"]
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TRAILING_PUNCTUATION = ['.', ',', ')', '>', '\n', '>', '"', "'"]
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DOTS = ['·', '*', '\xe2\x80\xa2', '•', '•', '•']
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unencoded_ampersands_re = re.compile(r'&(?!(\w+|#\d+);)')
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word_split_re = re.compile(r'(\s+)')
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punctuation_re = re.compile('^(?P<lead>(?:%s)*)(?P<middle>.*?)(?P<trail>(?:%s)*)$' % \
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('|'.join([re.escape(x) for x in LEADING_PUNCTUATION]),
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'|'.join([re.escape(x) for x in TRAILING_PUNCTUATION])))
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simple_email_re = re.compile(r'^\S+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+$')
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link_target_attribute_re = re.compile(r'(<a [^>]*?)target=[^\s>]+')
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html_gunk_re = re.compile(r'(?:<br clear="all">|<i><\/i>|<b><\/b>|<em><\/em>|<strong><\/strong>|<\/?smallcaps>|<\/?uppercase>)', re.IGNORECASE)
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hard_coded_bullets_re = re.compile(r'((?:<p>(?:%s).*?[a-zA-Z].*?</p>\s*)+)' % '|'.join([re.escape(x) for x in DOTS]), re.DOTALL)
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trailing_empty_content_re = re.compile(r'(?:<p>(?: |\s|<br \/>)*?</p>\s*)+\Z')
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# And the template tags themselves...
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@register.simple_tag
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@ -195,15 +176,25 @@ def add_class(value, css_class):
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return value
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# Bunch of stuff cloned from urlize
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TRAILING_PUNCTUATION = ['.', ',', ':', ';', '.)', '"', "'"]
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WRAPPING_PUNCTUATION = [('(', ')'), ('<', '>'), ('[', ']'), ('<', '>'),
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('"', '"'), ("'", "'")]
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word_split_re = re.compile(r'(\s+)')
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simple_url_re = re.compile(r'^https?://\w', re.IGNORECASE)
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simple_url_2_re = re.compile(r'^www\.|^(?!http)\w[^@]+\.(com|edu|gov|int|mil|net|org)$', re.IGNORECASE)
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simple_email_re = re.compile(r'^\S+@\S+\.\S+$')
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@register.filter
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def urlize_quoted_links(text, trim_url_limit=None, nofollow=True, autoescape=True):
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"""
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Converts any URLs in text into clickable links.
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Works on http://, https://, www. links and links ending in .org, .net or
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.com. Links can have trailing punctuation (periods, commas, close-parens)
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and leading punctuation (opening parens) and it'll still do the right
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thing.
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Works on http://, https://, www. links, and also on links ending in one of
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the original seven gTLDs (.com, .edu, .gov, .int, .mil, .net, and .org).
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Links can have trailing punctuation (periods, commas, close-parens) and
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leading punctuation (opening parens) and it'll still do the right thing.
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If trim_url_limit is not None, the URLs in link text longer than this limit
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will truncated to trim_url_limit-3 characters and appended with an elipsis.
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@ -216,24 +207,41 @@ def urlize_quoted_links(text, trim_url_limit=None, nofollow=True, autoescape=Tru
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trim_url = lambda x, limit=trim_url_limit: limit is not None and (len(x) > limit and ('%s...' % x[:max(0, limit - 3)])) or x
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safe_input = isinstance(text, SafeData)
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words = word_split_re.split(force_text(text))
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nofollow_attr = nofollow and ' rel="nofollow"' or ''
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for i, word in enumerate(words):
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match = None
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if '.' in word or '@' in word or ':' in word:
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match = punctuation_re.match(word)
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if match:
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lead, middle, trail = match.groups()
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# Deal with punctuation.
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lead, middle, trail = '', word, ''
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for punctuation in TRAILING_PUNCTUATION:
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if middle.endswith(punctuation):
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middle = middle[:-len(punctuation)]
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trail = punctuation + trail
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for opening, closing in WRAPPING_PUNCTUATION:
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if middle.startswith(opening):
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middle = middle[len(opening):]
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lead = lead + opening
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# Keep parentheses at the end only if they're balanced.
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if (middle.endswith(closing)
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and middle.count(closing) == middle.count(opening) + 1):
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middle = middle[:-len(closing)]
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trail = closing + trail
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# Make URL we want to point to.
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url = None
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if middle.startswith('http://') or middle.startswith('https://'):
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url = middle
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elif middle.startswith('www.') or ('@' not in middle and \
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middle and middle[0] in string.ascii_letters + string.digits and \
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(middle.endswith('.org') or middle.endswith('.net') or middle.endswith('.com'))):
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url = 'http://%s' % middle
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elif '@' in middle and not ':' in middle and simple_email_re.match(middle):
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url = 'mailto:%s' % middle
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nofollow_attr = ' rel="nofollow"' if nofollow else ''
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if simple_url_re.match(middle):
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url = smart_urlquote(middle)
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elif simple_url_2_re.match(middle):
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url = smart_urlquote('http://%s' % middle)
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elif not ':' in middle and simple_email_re.match(middle):
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local, domain = middle.rsplit('@', 1)
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try:
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domain = domain.encode('idna').decode('ascii')
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except UnicodeError:
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continue
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url = 'mailto:%s@%s' % (local, domain)
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nofollow_attr = ''
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# Make link.
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if url:
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trimmed = trim_url(middle)
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@ -251,4 +259,4 @@ def urlize_quoted_links(text, trim_url_limit=None, nofollow=True, autoescape=Tru
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words[i] = mark_safe(word)
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elif autoescape:
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words[i] = escape(word)
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return mark_safe(''.join(words))
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return ''.join(words)
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