Python, parse html form - python

how I can get input from html forms on other sites?
I want it to return a dictionary such as:
form = [('name' = 'somename', 'type' = 'text', 'value':''},{' name' = 'somename', 'type' = 'submit', 'value': ' submit ').
Sorry for my English.

you probably wont be able to retrieve form data from other users on other sites. If you wish to use a script to send data to a form, mechanize is one tool that makes this quite easy.

Yeah mechanize is sweet !
import mechanize
# Browser
br = mechanize.Browser()
br.set_handle_equiv(True)
br.set_handle_gzip(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)
br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]
# we inspect the all form element in the http://stackoverflow.com
br.open('http://stackoverflow.com')
for form in br.forms():
print form

Look at mechanize, lxml.html and BeatifulSoup.

Related

How can I navigate a site after logging in

I have used mechanize and successfully logged into a user login page. Now I want to navigate the site to a specific page in the submenus. When I try this by opening the URL of the specific page after logging in, another login page comes up which I do not have a username and password for. This log in page does not usually show up when I am navigating the site on a web browser.
How can I do this?
import mechanize
import webbrowser
import cookielib
usern = '****'
passw = '****'
br = mechanize.Browser()
cj = cookielib.LWPCookieJar()
br.set_handle_robots(False)
br.addheaders = [('User-agent', 'Mozilla/5.0 X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]
r = br.open("https://myunihub-1.mdx.ac.uk/cas-web/login?service=https%3A%2F%2Fmyunihub.mdx.ac.uk%2Fc%2Fportal%2Flogin")
br.select_form(nr=0)
br.form['username'] = usern
br.form['password'] = passw
br.set_cookiejar(cj)
br.submit
url = "https://misis.mdx.ac.uk/mislve/bwskfshd.P_CrseSchd"
webbrowser.open_new(url)
Try to use cookies and pretend to be actual browser. Some sites doesn't allow automated scripts/robots to crawl their sites. But you can always tell them no no I'm actual browser.
import cookielib
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
And let's pretend we are not a robot and a actual browser.
br.set_handle_robots(False)
br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]

How can i get fully loaded html through python-mechanize?

Hi I'm using python mechanize to get datas from webpages.
I'm trying to get imgurl from google image search webpage to download search result images.
Here's my code
I fill search form as 'dog' and submit. (search 'dog')
import mechanize
import cookielib
import urllib2
import urllib
br = mechanize.Browser()
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
br.set_handle_equiv(True)
br.set_handle_redirect(True)
br.set_handle_robots(False)
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time = 1)
br.addheaders = [('User-agent', 'Mozilla/5.0 (x11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1'), ('Accept', '*/*') ,('Accept-Language', 'ko-KR')]
br.open('http://www.google.com/imghp?hl=en')
br.select_form(nr=0)
br.form['q'] = 'dog'
a = br.submit()
searched_url = br.geturl()
file0 = open("1.html", "wb")
file0.write(a.read())
file0.close()
when i see page-source from chrome browser, there are 'imgurl's in pagesource. But when i read data from
python mechanize, there's no such things.
also, the size of 1.html(which i write by python) is much smaller than html file downloaded from chrome.
How can i get exactly same html data as web-browsers by using python?
Do i have to set request headers same as web-browsers?
thanks

Filling a form using a python script

I'm trying to write a python script that will fill a form on a website, send it, and after sending I want to search for a keyword on the resulting webpage.
More specifically, the form is: https://booking.elal.co.il/newBooking/changeOrder.jsp?LANG=EN&RESSYSTEMID=1
When I fill the form manually on the web, after I press the "continue" button I get kind of "processing page", and afterwards I get the webpage that I want to search on it the keyword.
I tried to use the script here: http://stockrt.github.io/p/handling-html-forms-with-python-mechanize-and-BeautifulSoup/ , but for some reason after submitting the form when I do: print br.response().geturl() I get the url of the "processing page", and not the url of the webpage I want to search on.
My Code:
import mechanize
import cookielib
from BeautifulSoup import BeautifulSoup
import html2text
# Browser
br = mechanize.Browser()
# Cookie Jar
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
# Browser options
br.set_handle_equiv(True)
br.set_handle_gzip(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)
# Follows refresh 0 but not hangs on refresh > 0
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)
# User-Agent (this is cheating, ok?)
br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]
# The site we will navigate into, handling it's session
br.open('https://booking.elal.co.il/newBooking/changeOrder.jsp?LANG=EN&RESSYSTEMID=1')
# Select the first (index zero) form
br.select_form(nr=0)
# User credentials
br.form['REC_LOC'] = '...'
br.form['DIRECT_RETRIEVE_LASTNAME'] = '...'
# Login
br.submit()
#Trying to print the webpage
html = br.response().read()
print html2text.html2text(html)
Is it possible to do what I want, and how can I do it?

Submitting a form with mechanize HTTP Error 500

This is my first time using mechanize and I'm trying to fill out a form with mechanize
Here are my browser options:
br.set_handle_equiv(True)
br.set_handle_gzip(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
br.addheaders = br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en- US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]
I fill out the form with valid values and hit br.submit() but it gives me HTTP: Error 500: Internal Server Error. I'm assuming it's detecting that it's a bot or something hitting the submit? But I figured that's what the addheaders was suppose to take care of.
You can use http://grablib.org/docs/, it is much easier and more efficient. Try it.
Install on linux:
pip install pycurl lxml
pip install grab
from grab import Grab
g = Grab()
g.go('http://google.com') # go to google.com
g.choose_form(0) #form number
g.set_input('q', 'test') # 'q'-input name, 'test' - search query
g.submit() # send request
print g.xpath_list('//a/text()') # view xpath result link list
Sorry for my english.

python mechanize session not saved

I'm trying to use python mechanize to retrive the list of apps on iTunes connect. Once this list is retrieved, further work will be done with those links.
Logging in succeeds but then when i follow the "Manage Your Applications" link I get redirected back to the login page. It is as if the session gets lost.
import mechanize
import cookielib
from BeautifulSoup import BeautifulSoup
import html2text
filename = 'itunes.html'
br = mechanize.Browser()
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)
br.set_handle_equiv(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)
br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]
br.open('https://itunesconnect.apple.com/WebObjects/iTunesConnect.woa')
br.select_form(name='appleConnectForm')
br.form['theAccountName'] = username
br.form['theAccountPW'] = password
br.submit()
apps_link = br.find_link(text='Manage Your Applications')
print "Manage Your Apps link = ", apps_link
req = br.follow_link(text='Manage Your Applications')
for app_link in br.links():
print "link is ", app_link
Any ideas what could be wrong?
You need to save/load the cookiejar
Figured this out after further investigation. This was due to a known bug in cookielib documented here: http://bugs.python.org/issue3924
Basically some sites (notably itunesconnect), set the cookie version as a string not an int. Which causes an error in cookielib since it does not deal with that condition. The fix at the bottom of that issue thread worked for me.

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