Pass Multiple Cookie Name Value Pairs in GlobalCookiemanager

[vish92]

Hi,

I am using Cef to scrape a website and fetch one of the div element from its Data Object Model. The issue is that, that website needs a username and password to login. I am using GetGlobalCookiemanager.SetcookieAsync to pass the cookie. In the Cookie object, it is mentioned that it accepts" name: value pair". But my cookie has multiple name value pairs. Is there any way through which i can pass multiple name value pairs that are present in my cookie to bypass the login page? Please let me know if I am missing something?

[HarmlessDave]

A single cookie has only one name and one value. The value can be anything including a list of things like (name) = access, (value) = user:fred;password:apple;timeset:20170408-001536

To set 2 cookies, just call set cookie twice.

[vish92]

Thanks for your reply!! That implies that I will call SetCookieAsync multiple times to set multiple cookies. Please correct me if am wrong. To visit all those cookies, do I have to use any of the below :
- VisitAllCookies
-VisitAllCookiesAsync()
if yes, how do I utilize the above in my code? I could not find any on blogs.

[HarmlessDave]

Are you using CEF or something else like the C#, Java, Delphi bindings?

In CEF3 we create a CefCookieVisitor (or subclass of it) object, get the cookie manager, then pass the CookieVisitor to VisitUrlCookies like this:

Code: Select all

CefRefPtr<CefCookieManager> manager = CefCookieManager::GetGlobalManager(NULL);
if (manager != NULL)
{
    manager->VisitUrlCookies(szURL, true, new MyCookieVisitorAsync(browser));
}


See also: viewtopic.php?f=14&t=13915

[vish92]

Hi,

I am using CEF for this. Can you please explain a little more on the usage of VisitAllCookies and VisitAllCookiesAsync ? Which one can I use for utilizing all my cookies? Also, can you please clear on what should be the implementation of Visitor if VisitAllCookies has to be used?

[HarmlessDave]

What version of CEF are you using? CEF3 only has VisitAll and VisitURL, both of them are asynch:

Code: Select all

http://magpcss.org/ceforum/apidocs3/projects/(default)/CefCookieManager.html
http://magpcss.org/ceforum/apidocs3/projects/(default)/CefCookieVisitor.html


All returns cookies for every subdomain. URL returns cookies for a specific site.

You create a subclass of CefCookieVisitor like MyCookieVisitor and pass that to the cookie manager. It has a Visit function that will be called once per cookie. That Visit function can do something with the cookie, or set flags or cache the cookie data into a pair of string lists or whatever.

After cookie manager has sent all cookies to the Visit function, the destructor for your MyCookieVisitor object is called. At that point you can again do whatever you want -- search the cookie data if you built string lists, look at flags that you set, set cookies, etc.

Edit: just to be clear, you only need to do this to read cookies. To set cookies you just get the cookie manager and then call SetCookie once per cookie = name-value pair.