def cleanpage(html): # cleaner setup cleaner = Cleaner() cleaner.html = True cleaner.page_structure = False cleaner.meta = False cleaner.safe_attrs_only = False cleaner.links = False cleaner.javascript = True # activate the javascript filter cleaner.style = True # activate the styles & stylesheet filter cleaner.links = False cleaner.frames = True cleaner.embedded = True cleaner.comments = True cleaner.annoying_tags = True cleaner.inline_style = True cleaner.page_structure = False # cleaner.remove_tags = ['b','img','h'] cleaner.kill_tags = ['img','script'] #invoke cleaner try: content=cleaner.clean_html(html) except: #error: ValueError: Unicode strings with encoding declaration are not supported. Please use bytes input or XML fr content = u"" return content
def lxml_extractor(html, url): '''LXML PARSER''' cleaner = Cleaner() cleaner.javascript = True # This is True because we want to activate the javascript filter cleaner.style = True # This is True because we want to activate the styles & stylesheet filter cleaner.comments = True cleaner.embedded = True cleaner.forms= True cleaner.frames = True cleaner.annoying_tags = True cleaner.kill_tags = NEGATIVE_K cleaner.allow_tag = POSITIVE_K cleaner.safe_attrs_only = True #~ oc = document_fromstring(html, parser=parser, base_url=base_url, **kw) #~ File "/usr/local/lib/python2.7/dist-packages/lxml/html/__init__.py", line 752, in document_fromstring #~ value = etree.fromstring(html, parser, **kw) try: html = lxml.html.fromstring(html, base_url="url") tree = cleaner.clean_html(html) #tree.make_links_absolute(url) doc = lxml.html.tostring(tree) doc = soup_extractor(doc, url) except ValueError: doc = soup_extractor(html, url) #~ (title, doc, article, text) = read_extractor(html, url) #~ print title #~ doc = (self.doc).replace(unichr(160), " ") #~ doc = re.sub(spaces,"",self.doc) return doc
def clean_html(html_text, javascript=True, scripts=True, style=True, embedded=True, links=True, forms=True, frames=True, comments=True, annoying_tags=True, meta=True, safe_attrs_only=True, remove_unknown_tags=True, processing_instructions=True): """Clean all the javascript and styles from the HTML returning the string with only the html content""" # True = Remove | False = Keep cleaner = Cleaner() cleaner.javascript = javascript # This is True because we want to activate the javascript filter cleaner.scripts = scripts # This is True because we want to activate the scripts filter cleaner.style = style cleaner.embedded = embedded cleaner.links = links cleaner.forms = forms cleaner.frames = frames cleaner.comments = comments cleaner.page_structure = False # Keep page structure cleaner.annoying_tags = annoying_tags cleaner.meta = meta cleaner.safe_attrs_only = safe_attrs_only cleaner.remove_unknown_tags = remove_unknown_tags cleaner.processing_instructions = processing_instructions clean_content = cleaner.clean_html(lxml.html.fromstring(html_text)) return lxml.html.tostring(clean_content)
def clearTag_old(self, text: str) -> str: import lxml from lxml.html.clean import Cleaner cleaner = Cleaner() cleaner.javascript = True cleaner.style = True cleaner.links = True cleaner.meta = True cleaner.forms = True cleaner.embedded = True cleaner.frames = True cleaner.remove_unknown_tags = True cleaner.kill_tags = ["img"] cleaner.remove_tags = [ "strong", "div", "body", "br", "a", "p", "blockquote", "h3", "ol", "li", "font", ] return cleaner.clean_html( lxml.html.document_fromstring(text)).decode("utf-8")
def cleaner_parameters(): reject_list = [ 'script', 'noscript', 'style', 'meta', 'semantics', 'img', 'label', 'table', 'li', 'ul', 'ol', 'nav', 'dl', 'dd', 'sub', 'sup', 'math' ] accept_list = [ 'div', 'p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6' 'span', 'b', 'a', 'u', 'i', 'body' ] html_cleaner = Cleaner() html_cleaner.remove_unknown_tags = True html_cleaner.processing_instructions = True html_cleaner.style = True html_cleaner.comments = True html_cleaner.scripts = True html_cleaner.javascript = True html_cleaner.meta = True html_cleaner.links = True html_cleaner.embedded = True html_cleaner.annoying_tags = True html_cleaner.frames = True html_cleaner.forms = True html_cleaner.remove_tags = accept_list html_cleaner.kill_tags = reject_list return html_cleaner
def convertHtmlToDicts(url, content): """ given a url and content, create file and article dictionaries content has to include normal newlines, no \a or #N# replacers returns None, None on error """ # lxml does not like unicode if the document has an explicit encoding if " encoding=" not in content: content = pubGeneric.forceToUnicode(content) logging.debug("Converting to text: %s " % (repr(url))) artDict = pubStore.createEmptyArticleDict(source="bing", fulltextUrl=url) if not "<html" in content: return None, None try: logging.debug("Parsing html with lxml, html size %d" % len(content)) tree = lxml.html.document_fromstring(content) logging.debug("end parse html") except lxml.etree.XMLSyntaxError: return None, None titleEl = tree.find("head/title") if titleEl!=None: title = titleEl.text else: logging.debug("No title found?") title = "" metaTags = tree.findall("head/meta") artDict = parseMetaData(metaTags, artDict) logging.debug("Cleaning html tree") cleaner = Cleaner() cleaner.javascript = True cleaner.style = True cleaner.meta = True cleaner.embedded = True cleaner.page_structure=True #cleaner.remove_tags = ["a", "li", "td"] cleanTree = cleaner.clean_html(tree) logging.debug("Cleaning done, now converting to ASCII") #text = cleanTree.text_content() newlineTags = ["p", "br"] asciiText = pubXml.treeToAsciiText(cleanTree, newlineTags) logging.debug("ASCII conversion done") logging.debug("title: %s" % title) if "title" not in artDict or artDict["title"]=="": artDict["title"] = title if artDict["abstract"]=="": abstract = unidecode.unidecode(asciiText[0:1500]).strip() artDict["abstract"] = abstract logging.debug("abstract: %s" % artDict["abstract"]) fileDict = pubStore.createEmptyFileDict(url=url, content=asciiText, mimeType="text/html") logging.debug("meta data extract success: %s" % artDict) return artDict, fileDict
def get_cleaner(): cleaner = Cleaner() cleaner.embedded = True cleaner.frames = True cleaner.style = True cleaner.remove_unknown_tags = True cleaner.processing_instructions = True cleaner.annoying_tags = True cleaner.remove_tags = ['h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'b', 'a', 'u', 'i', 'body', 'div', 'span', 'p'] cleaner.kill_tags = ['table', 'img', 'semantics', 'script', 'noscript', 'style', 'meta', 'label', 'li', 'ul', 'ol', 'sup', 'math', 'nav', 'dl', 'dd', 'sub'] return cleaner
import lxml from lxml import etree from lxml.html.clean import autolink_html from lxml.html.clean import Cleaner #LXML PARSER cleaner = Cleaner() cleaner.javascript = True # This is True because we want to activate the javascript filter cleaner.style = True # This is True because we want to activate the styles & stylesheet filter cleaner.comments = True cleaner.embedded = True cleaner.forms= True cleaner.frames = True #cleaner.safe_attrs_only = True import re notalpha = re.compile('[^a-zA-Z]') #BS PARSER from bs4 import BeautifulSoup as bs from bs4 import Comment def make_links_absolute(soup, url): return [urlparse.urljoin(url, tag['href']) for tag in soup.findAll('a', href=True)] def clean_html(soup): soup = bs(" ".join([s.extract() for s in soup('script')])) soup = bs(" ".join([s.extract() for s in soup('iframe')])) soup = bs(" ".join([s.extract() for s in soup('form')])) soup = bs(" ".join([s.extract() for s in soup('embed')])) soup = bs(" ".join([s.extract() for s in soup('style')]))
from lxml import etree from lxml.html.clean import Cleaner from .filters import duplicate_test, textfilter from .settings import CUT_EMPTY_ELEMS, DEFAULT_CONFIG, MANUALLY_CLEANED, MANUALLY_STRIPPED from .utils import trim LOGGER = logging.getLogger(__name__) # HTML_CLEANER config # http://lxml.de/api/lxml.html.clean.Cleaner-class.html # https://lxml.de/apidoc/lxml.html.clean.html HTML_CLEANER = Cleaner() HTML_CLEANER.annoying_tags = False # True HTML_CLEANER.comments = True HTML_CLEANER.embedded = False # True HTML_CLEANER.forms = False # True HTML_CLEANER.frames = False # True HTML_CLEANER.javascript = False HTML_CLEANER.links = False HTML_CLEANER.meta = False HTML_CLEANER.page_structure = False HTML_CLEANER.processing_instructions = True HTML_CLEANER.remove_unknown_tags = False HTML_CLEANER.safe_attrs_only = False HTML_CLEANER.scripts = False HTML_CLEANER.style = False #HTML_CLEANER.remove_tags = MANUALLY_STRIPPED #HTML_CLEANER.kill_tags = MANUALLY_CLEANED
DATE_EXPRESSIONS = [ "//*[contains(@id, 'date') or contains(@id, 'Date') or contains(@id, 'datum') or contains(@id, 'Datum') or contains(@id, 'time') or contains(@class, 'post-meta-time')]", "//*[contains(@class, 'date') or contains(@class, 'Date') or contains(@class, 'datum') or contains(@class, 'Datum')]", "//*[contains(@class, 'postmeta') or contains(@class, 'post-meta') or contains(@class, 'entry-meta') or contains(@class, 'postMeta') or contains(@class, 'post_meta') or contains(@class, 'post__meta')]", "//*[@class='meta' or @class='meta-before' or @class='asset-meta' or contains(@id, 'article-metadata') or contains(@class, 'article-metadata') or contains(@class, 'byline') or contains(@class, 'subline')]", "//*[contains(@class, 'published') or contains(@class, 'posted') or contains(@class, 'submitted') or contains(@class, 'created-post')]", "//*[contains(@id, 'lastmod') or contains(@itemprop, 'date') or contains(@class, 'time')]", "//footer", "//*[@class='post-footer' or @class='footer' or @id='footer']", "//small", "//*[contains(@class, 'author') or contains(@class, 'autor') or contains(@class, 'field-content') or @class='meta' or contains(@class, 'info') or contains(@class, 'fa-clock-o')]", ] CLEANER = Cleaner() CLEANER.comments = False CLEANER.embedded = True CLEANER.forms = False CLEANER.frames = True CLEANER.javascript = True CLEANER.links = False CLEANER.meta = False CLEANER.page_structure = True CLEANER.processing_instructions = True CLEANER.remove_unknown_tags = False CLEANER.safe_attrs_only = False CLEANER.scripts = False CLEANER.style = True CLEANER.kill_tags = [ 'audio', 'canvas', 'label', 'map', 'math', 'object', 'picture', 'rdf', 'svg', 'video' ] # 'embed', 'figure', 'img', 'table'
# './/aside', \ # conflicts with text extraction ] COMMENTS_DISCARD_XPATH = ['.//*[(self::div or self::section)][starts-with(@id, "respond")]', \ './/cite', \ './/quote', \ './/*[starts-with(@id, "reply-") or starts-with(@class, "reply-title")]', \ './/*[contains(@id, "akismet") or contains(@class, "akismet")]', \ ] # HTML_CLEANER config # http://lxml.de/api/lxml.html.clean.Cleaner-class.html HTML_CLEANER = Cleaner() HTML_CLEANER.annoying_tags = True HTML_CLEANER.comments = True HTML_CLEANER.embedded = True HTML_CLEANER.forms = True HTML_CLEANER.frames = True HTML_CLEANER.javascript = True HTML_CLEANER.links = False HTML_CLEANER.meta = False HTML_CLEANER.page_structure = False HTML_CLEANER.processing_instructions = True HTML_CLEANER.remove_unknown_tags = False HTML_CLEANER.safe_attrs_only = False HTML_CLEANER.scripts = True HTML_CLEANER.style = False HTML_CLEANER.remove_tags = [ 'a', 'abbr', 'acronym', 'address', 'big', 'cite', 'font', 'ins', 'meta', 'small', 'sub', 'sup', 'wbr' ] # 'center', 'table', 'tbody', 'td', 'th', 'tr', 'span',
# latest possible year MAX_YEAR = datetime.date.today().year ## DateDataParser object PARSERCONFIG = { 'PREFER_DAY_OF_MONTH': 'first', 'PREFER_DATES_FROM': 'past', 'DATE_ORDER': 'DMY' } logger.debug('settings: %s %s %s', MIN_YEAR, TODAY, MAX_YEAR) logger.debug('dateparser configuration: %s', PARSERCONFIG) cleaner = Cleaner() cleaner.comments = True cleaner.embedded = True cleaner.forms = False cleaner.frames = True cleaner.javascript = False cleaner.links = False cleaner.meta = False cleaner.page_structure = True cleaner.processing_instructions = True cleaner.remove_unknown_tags = False cleaner.safe_attrs_only = False cleaner.scripts = False cleaner.style = False cleaner.kill_tags = [ 'audio', 'canvas', 'label', 'map', 'math', 'object', 'picture', 'table', 'svg', 'video' ]
def html_sanitizer(content): """ sanitize malicious scripts """ cleaner = Cleaner() cleaner.embedded = False cleaner.safe_attrs_only = False return cleaner.clean_html(content)