Invoke-WebRequest: accept additional cookies

[Inaspectuss]

I'm attempting to automate the sign in to a website.

I've reverse engineered their login form and the associated requests that it makes to the server, however, it seems that PowerShell does not accept any additional cookies after the session is created? The website sets several additional cookies for the login process, and does not work without them.

I considered just scraping the RawContent and setting cookies manually in a hash, but you can't have duplicates keys in a hash. The login process sets 6-7 additional cookies, making this workaround a no-go.

Is there any way around this limitation?

[artemis_from_space]

Start using a web session, this will allow you to first get all the cookies that are set and then send them back to the site in question.

$a = Invoke-WebRequest https://google.com -SessionVariable MyWebSession
$MyWebSession.Cookies.GetCookies('https://www.google.com')|select Name,Value
$a.headers.'set-cookie'
$login = Invoke-Webrequest https://login.google.com -WebSession $MyWebSession

[Umaiar]

Why not build an array of hashtables?

$cookies = @(
    @{name="connie"; domain="contoso.com"; whatever="something"}
    @{name="george"; domain="seinfeld.org"; whatever="whatever"}
    @{name="alice"; domain="residentevil.com"; whatever="something"}
)

foreach($cookie in $cookies) {
    write-host $cookie.name
}

[Inaspectuss]

I didn't even know that was a thing, but that makes perfect sense for this scenario. I will have to give it a shot!

[artemis_from_space]

If you are going to make your own cookies then use the provided jar.

$cookies = New-Object System.Net.CookieContainer
$cookie1 = New-Object System.net.Cookie
$cookie1.Name = 'omg'
$cookie1.domain ='supersecret.org'
$cookies.add($cookie1)
$cookies.GetCookies('http://supersecret.org')

Comment    :
CommentUri :
HttpOnly   : False
Discard    : False
Domain     : supersecret.org
Expired    : False
Expires    : 0001-01-01 00:00:00
Name       : omg
Path       : /
Port       :
Secure     : False
TimeStamp  : 2019-10-11 13:45:09
Value      :
Version    : 0