def info():
"""
>> info
Report information on current page.
"""
current_url = browser.get_url()
if current_url is None:
logger.warning("We're not on a page!")
return
content_type = browser._browser._response.info().getheaders("content-type")
check_html = is_html(content_type, current_url)
code = browser.get_code()
logger.info('\nPage information:')
logger.info('\tURL: %s', current_url)
logger.info('\tHTTP code: %s', code)
m = ['\tContent type: ', content_type[0]]
if check_html:
m.append('(HTML)')
logger.info("".join(m))
if check_html:
title = browser.get_title()
logger.info('\tPage title: %s', title)
forms = browser.get_all_forms()
if len(forms):
logger.info('\tThis page contains %d form(s)', len(forms))
logger.info('')
def test_is_html(self):
from mechanize._headersutil import is_html
for allow_xhtml in False, True:
for cths, ext, expect in [
(["text/html"], ".html", True),
(["text/html", "text/plain"], ".html", True),
# Content-type takes priority over file extension from URL
(["text/html"], ".txt", True),
(["text/plain"], ".html", False),
# use extension if no Content-Type
([], ".html", True),
([], ".gif", False),
# don't regard XHTML as HTML (unless user explicitly asks for it),
# since we don't yet handle XML properly
([], ".xhtml", allow_xhtml),
(["text/xhtml"], ".xhtml", allow_xhtml),
]:
url = "http://example.com/foo" + ext
self.assertEqual(expect, is_html(cths, url, allow_xhtml))
def urlinfo(self, url, maxback=2):
if urlparse.urlsplit(url).netloc == 'mobile.twitter.com':
url = url.replace('mobile.twitter.com', 'twitter.com', 1)
try:
r = self.openurl(HeadRequest(url), _tries=2, _delay=0.2)
body = False
except BrowserUnavailable as e:
if u'HTTP Error 501' in unicode(e) or u'HTTP Error 405' in unicode(
e):
r = self.openurl(url, _tries=2, _delay=0.2)
body = True
elif u'HTTP Error 404' in unicode(e) \
and maxback and not url[-1].isalnum():
return self.urlinfo(url[:-1], maxback - 1)
else:
raise e
headers = r.info()
content_type = headers.get('Content-Type')
try:
size = int(headers.get('Content-Length'))
hsize = self.human_size(size)
except TypeError:
size = None
hsize = None
is_html = headersutil.is_html([content_type], url, True)
title = None
if is_html:
if not body:
r = self.openurl(url, _tries=2, _delay=0.2)
# update size has we might not have it from headers
size = len(r.read())
hsize = self.human_size(size)
r.seek(0)
encoding = EncodingFinder('windows-1252').encoding(r).lower()
try:
h = self.get_document(r, parser='lxml', encoding=encoding)
for meta in h.xpath('//head/meta'):
# meta http-equiv=content-type content=...
if meta.attrib.get('http-equiv',
'').lower() == 'content-type':
for k, v in headersutil.split_header_words(
[meta.attrib.get('content', '')]):
if k == 'charset':
encoding = v
# meta charset=...
encoding = meta.attrib.get('charset', encoding).lower()
except Exception as e:
print e
finally:
r.seek(0)
if encoding == 'iso-8859-1' or not encoding:
encoding = 'windows-1252'
try:
codecs.lookup(encoding)
except LookupError:
encoding = 'windows-1252'
try:
h = self.get_document(r, parser='lxml', encoding=encoding)
for title in h.xpath('//head/title'):
title = to_unicode(title.text_content()).strip()
title = ' '.join(title.split())
if urlparse.urlsplit(url).netloc.endswith('twitter.com'):
for title in h.getroot().cssselect(
'.permalink-tweet .tweet-text'):
title = to_unicode(title.text_content()).strip()
title = ' '.join(title.splitlines())
except AssertionError as e:
# invalid HTML
print e
return content_type, hsize, title
def urlinfo(self, url, maxback=2):
if urlparse.urlsplit(url).netloc == 'mobile.twitter.com':
url = url.replace('mobile.twitter.com', 'twitter.com', 1)
try:
r = self.openurl(HeadRequest(url), _tries=2, _delay=0.2)
body = False
except BrowserUnavailable as e:
if u'HTTP Error 501' in unicode(e) or u'HTTP Error 405' in unicode(e):
r = self.openurl(url, _tries=2, _delay=0.2)
body = True
elif u'HTTP Error 404' in unicode(e) \
and maxback and not url[-1].isalnum():
return self.urlinfo(url[:-1], maxback-1)
else:
raise e
headers = r.info()
content_type = headers.get('Content-Type')
try:
size = int(headers.get('Content-Length'))
hsize = self.human_size(size)
except TypeError:
size = None
hsize = None
is_html = headersutil.is_html([content_type], url, True)
title = None
if is_html:
if not body:
r = self.openurl(url, _tries=2, _delay=0.2)
# update size has we might not have it from headers
size = len(r.read())
hsize = self.human_size(size)
r.seek(0)
encoding = EncodingFinder('windows-1252').encoding(r).lower()
try:
h = self.get_document(r, parser='lxml', encoding=encoding)
for meta in h.xpath('//head/meta'):
# meta http-equiv=content-type content=...
if meta.attrib.get('http-equiv', '').lower() == 'content-type':
for k, v in headersutil.split_header_words([meta.attrib.get('content', '')]):
if k == 'charset':
encoding = v
# meta charset=...
encoding = meta.attrib.get('charset', encoding).lower()
except Exception as e:
print e
finally:
r.seek(0)
if encoding == 'iso-8859-1' or not encoding:
encoding = 'windows-1252'
try:
codecs.lookup(encoding)
except LookupError:
encoding = 'windows-1252'
try:
h = self.get_document(r, parser='lxml', encoding=encoding)
for title in h.xpath('//head/title'):
title = to_unicode(title.text_content()).strip()
title = ' '.join(title.split())
if urlparse.urlsplit(url).netloc.endswith('twitter.com'):
for title in h.getroot().cssselect('.permalink-tweet .tweet-text'):
title = to_unicode(title.text_content()).strip()
title = ' '.join(title.splitlines())
except AssertionError as e:
# invalid HTML
print e
return content_type, hsize, title
