Signed-off-by: Kenneth Reitz <me@kennethreitz.org>
This commit is contained in:
2018-02-24 18:18:26 -05:00
parent c05af45e22
commit 2eca52ecf9
+77 -12
View File
@@ -1,15 +1,23 @@
from tempfile import TemporaryFile
import html2text
import requests
from pyquery import PyQuery
from fake_useragent import UserAgent
from lxml.etree import tostring
from parse import search as parse_search
from parse import findall
# HTML 2 Markdown converter.
html2text = html2text.HTML2Text()
useragent = UserAgent()
# xpath support next.
# parse support.
class Element:
"""docstring for Element"""
"""An element of HTML."""
def __init__(self, element):
self.element = element
@@ -19,65 +27,90 @@ class Element:
attrs.append('{}={}'.format(attr, repr(self.attrs[attr])))
return "<Element {} {}>".format(repr(self.element.tag), ' '.join(attrs))
# return tostring(self.element).decode('utf-8')
@property
def pq(self):
"""PyQuery representation of the element."""
return PyQuery(self.element)
@property
def attrs(self):
# print(dir(self.element))
"""Returns a dictionary of the attributes of the element."""
return {k: self.pq.attr[k] for k in self.element.keys()}
@property
def text(self):
"""The text content of the element."""
return self.pq.text()
@property
def full_text(self):
"""The full text content (including links) of the element."""
return self.pq.text_content()
@property
def markdown(self):
"""Markdown representation of the element."""
return html2text.handle(self.html)
@property
def html(self):
"""HTML representation of the element."""
return tostring(self.element).decode('utf-8').strip()
def find(self, selector):
"""Given a jQuery selector, returns a list of element objects."""
def gen():
for found in self.pq(selector):
yield Element(found)
return [g for g in gen()]
def search(self, template):
"""Searches the element for the given parse template."""
return parse_search(template, self.html)
def search_all(self, template):
"""Searches the element (multiple times) for the given parse
template.
"""
return [r for r in findall(template, self.html)]
class HTML(object):
"""docstring for HTML"""
class HTML:
"""An HTML document."""
def __init__(self, response):
self.html = response.text
self.url = response.url
self.skip_anchors = True
def __repr__(self):
return repr("<HTML url={}>".format(repr(self.url)))
return "<HTML url={}>".format(repr(self.url))
def find(self, selector=None):
def find(self, selector):
"""Given a jQuery selector, returns a list of element objects."""
def gen():
for found in self.pq(selector):
yield Element(found)
return [g for g in gen()]
def search(self, template):
"""Searches the page for the given parse template."""
return parse_search(template, self.html)
def search_all(self, template):
"""Searches the page (multiple times) for the given parse template."""
return [r for r in findall(template, self.html)]
@property
def markdown(self):
"""Markdown representation of the page."""
return html2text.handle(self.html)
@property
def links(self):
"""All found links on page, in asis form."""
def gen():
for link in self.find('a'):
try:
@@ -91,6 +124,7 @@ class HTML(object):
@property
def base_url(self):
"""The base URL for the page."""
url = '/'.join(self.url.split('/')[:-1])
if url.endswith('/'):
url = url[:-1]
@@ -99,9 +133,11 @@ class HTML(object):
@property
def absolute_links(self):
"""All found links on page, in absolute form."""
def gen():
for link in self.links:
if not link.startswith('http'):
# Appears to not be an absolute link.
if ':' not in link:
if link.startswith('/'):
href = '{}{}'.format(self.base_url, link)
else:
@@ -115,15 +151,44 @@ class HTML(object):
@property
def pq(self):
"""PyQuery representation of the page."""
return PyQuery(self.html)
def handle_response(response, **kwargs):
def _handle_response(response, **kwargs):
"""Requests HTTP Response handler. Attaches .html property to Response
objects.
"""
response.html = HTML(response)
return response
session = requests.Session()
session.hooks = {'response': handle_response}
def user_agent(style=None):
"""Returns a random user-agent, if not requested one of a specific
style.
"""
print(session.get('https://github.com/kennethreitz/requests-html').html.find('.message')[0].text)
if not style:
return useragent.random
else:
return useragent[style]
def get_session(mock_browser=True):
"""Returns a consumable session, for cookie persistience and connection
pooling, amongst other things.
"""
# Requests Session.
session = requests.Session()
# Mock a web browser's user agent.
if mock_browser:
session.headers['User-Agent'] = user_agent()
# Hook into Requests.
session.hooks = {'response': _handle_response}
return session
session = get_session()