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[fix] ignore scripts/styles in html_to_text

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This commit is contained in:
Adam Tauber 2015-01-01 14:13:56 +01:00
parent 469e08881e
commit 1408859b4b
1 changed files with 23 additions and 0 deletions
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23
searx/utils.py
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@ -23,6 +23,9 @@ ua_os = ('Windows NT 6.3; WOW64',
ua = "Mozilla/5.0 ({os}) Gecko/20100101 Firefox/{version}" ua = "Mozilla/5.0 ({os}) Gecko/20100101 Firefox/{version}"
blocked_tags = ('script',
'style')
def gen_useragent(): def gen_useragent():
# TODO # TODO
@ -67,11 +70,29 @@ class HTMLTextExtractor(HTMLParser):
def __init__(self): def __init__(self):
HTMLParser.__init__(self) HTMLParser.__init__(self)
self.result = [] self.result = []
self.tags = []
def handle_starttag(self, tag, attrs):
print tag
self.tags.append(tag)
def handle_endtag(self, tag):
print tag,tag
if tag != self.tags[-1]:
raise Exception("invalid html")
self.tags.pop()
def is_valid_tag(self):
return not self.tags or self.tags[-1] not in blocked_tags
def handle_data(self, d): def handle_data(self, d):
if not self.is_valid_tag():
return
self.result.append(d) self.result.append(d)
def handle_charref(self, number): def handle_charref(self, number):
if not self.is_valid_tag():
return
if number[0] in (u'x', u'X'): if number[0] in (u'x', u'X'):
codepoint = int(number[1:], 16) codepoint = int(number[1:], 16)
else: else:
@ -79,6 +100,8 @@ class HTMLTextExtractor(HTMLParser):
self.result.append(unichr(codepoint)) self.result.append(unichr(codepoint))
def handle_entityref(self, name): def handle_entityref(self, name):
if not self.is_valid_tag():
return
# codepoint = htmlentitydefs.name2codepoint[name] # codepoint = htmlentitydefs.name2codepoint[name]
# self.result.append(unichr(codepoint)) # self.result.append(unichr(codepoint))
self.result.append(name) self.result.append(name)