How to use Python to login to a webpage and retrieve cookies for later usage?
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I want to download and parse webpage using python, but to access it I need a couple of cookies set. Therefore I need to login over https to the webpage first. The login moment involves sending two POST params (username, password) to /login.php. During the login request I want to retrieve the cookies from the response header and store them so I can use them in the request to download the webpage /data.php. import urllib, urllib2, cookielib
username = 'myuser'
password = 'mypassword'
cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
login_data = urllib.urlencode({'username' : username, 'j_password' : password})
opener.open('http://www.example.com/login.php', login_data)
resp = opener.open('http://www.example.com/hiddenpage.php')
print resp.read()
|
WGET, Cookies and 302 Redirect
Date : March 29 2020, 07:55 AM
With these it helps I used to always have trouble with wget and cookies (trying to make wget use my Mozilla cookies, etc...) so I switched to using the Perl library WWW::Mechanize. It handles cookies for you as well as all of the usual things you'd expect out of a browser, like 302 handling and history. An simple example that logs into a site, grabs all JPGs and clicks a "Next" link for pagination: use warnings;
use strict;
use WWW::Mechanize;
use File::Slurp;
my $mech = WWW::Mechanize->new;
$mech->get('http://example.com/login') || die;
$mech->submit_form( form_name => 'login_form',
fields => { username => 'me',
password => 'secret' } ) || die;
while (1) {
for my $link ($mech->links) {
my $url = $link->url;
if ($url =~ /(image_\d+\.jpg)\z/) {
my $file = $1;
$mech->get($url);
File::Slurp::write_file($file, $mech->content);
$mech->back; # like the browser back button
}
}
# look at next page, if any
my $result = $mech->follow_link(text_regex => qr/Next/);
if (!$result) {
last;
}
}
|
Using Python to login webpage (cookies GET and POST involved)
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I am trying to use Python 2.7.6 to login a website. the login logic contains 2 steps in 2 webpages. , How about just going with one of the two? import mechanize;
browser = mechanize.Browser()
browser.addheaders = [('...')]
browser.open(YOUR_URL)
browser.select_form(FORM_NAME)
browser.form['USERNAME_FIELD'] = 'abc'
browser.form['PASSWORD_FIELD'] = 'password'
browser.submit()
print browser.response().read()
print browser.geturl()
|
wget cookies login script: same site, HTTP script works, HTTPS doesn't
Date : March 29 2020, 07:55 AM
This might help you I looked at what my browser was doing different then added --header="Referer: ${LOGIN_URL}" to the second wget call and it worked.
Not entirely sure 1. Why Django would be rejecting something without a Referer. I guess it makes sense(?) 2. Why it was working on the HTTP only site. But ... moving on.
|
Redirect users to the login if they are not authenticated and to the homepage if authenticated when accessing a url that
Date : March 29 2020, 07:55 AM
like below fixes the issue Add the custom foreign key to the conferences relationship definition: public function conferences()
{
return $this->hasMany(Conference::class, 'conference_creator_id');
}
|
Boards Message :
Related QUESTIONS :