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python - 使用 requests post 方法登录网站

问题描述

我正在尝试登录该网站：https ://www.blackrock.com/userplatform/signOn

我正在使用以下脚本来执行此操作：

import requests
from bs4 import BeautifulSoup

headers = {
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:55.0) Gecko/20100101 Firefox/55.0'
}
resp = requests.get('https://www.ishares.com/us/sign-on.saml', headers=headers)

soup_object =  BeautifulSoup(resp.text, 'html.parser')

csrf = soup_object.select_one('meta[name="_csrf"]').get('content')

login_data = dict(userName='USERNAME', password='PASSWORD', csrfmiddlewaretoken=csrf)

r = requests.post('https://www.blackrock.com/userplatform/signOn', data=login_data, headers={"Referer": "https://www.blackrock.com"})

但是，当我在邮递员中运行脚本时，它给了我禁止的 403 错误消息。有人可以建议我做错了什么吗？

该网站甚至共享了一个脚本，用于登录他们的门户并下载一些文件。但它是用 perl 编写的。共享该脚本以供参考。但我想用python来做。

use strict;
use File::Basename;
use Getopt::Long;
use WWW::Mechanize;
use URI qw( );

my $thisScript = basename($0);
print "==START $thisScript==\n";
my ($help, $proxy, $username, $password);
my $urlsToBeDownloaded = "file-url-list.txt";
my $url = "https://www.ishares.com/us/sign-on.saml";
usage() if (@ARGV < 2 or ! GetOptions('proxy:s' => \$proxy, 
                                      'username=s' => \$username, 
                                      'password=s' => \$password) 
                        or defined $help);

if ($username eq "" || $password eq "") {
        usage();
}

my $mech = WWW::Mechanize->new();
if($proxy ne ""){
    $mech->proxy(['http', 'https'], $proxy);    
}
$mech->get($url);
$mech->submit();
my $ctoken = $mech->field('ctoken');

$mech->get($mech->uri());
$mech->submit_form(
        form_number => 1,
        fields    => {
                        userName => $username,
                        password  => $password,
                        ctoken  => $ctoken
                     }
);
$mech->submit();
if($mech->content() =~ "sign-out.saml" ){
    open (FILE, $urlsToBeDownloaded)or die "Can't open $urlsToBeDownloaded for read: $!";
    while (<FILE>) {
        chomp;
        print "Downloading==>$_ \n";
        eval {
            $mech->get($_);
            $mech->save_content(getFileNameFromUrl($_));    
        };
        if($@){
            print "ERROR: Downloading $_. $@\n";
        }
    }
    close (FILE);
} else {
    print "ERROR: Invalid email or password. Please try again.\n";  
}
print "==END $thisScript==\n";

sub getFileNameFromUrl{
    my $uri = URI->new($_[0]);
    return ( $uri->path_segments )[-1];
}

sub usage {
        print "\nUsage: perl $thisScript --proxy <Set the proxy (OPTIONAL)> --username <User Name> --password <Password> \n\n";
        print("Ex: perl $thisScript --proxy \"http://proxyurl\" --username \"testuser\@test.com\" --password \"password\" \n\n");
        exit;
}

标签： pythonperlpostloginrequest

解决方案

看起来第三个键是_csrf而不是login_data变量中的 csrfmiddlewaretoken ：

=>

login_data = dict(userName='USERNAME', password='PASSWORD', _csrf=csrf)

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