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https://issues.apache.org/jira/browse/OFBIZ-10307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16552083#comment-16552083
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Jacques Le Roux commented on OFBIZ-10307:
-----------------------------------------
I did not mention the patch to apply for the feature because Jira takes care of
that. When you add successive patches with the same name, Jira will gray the
old ones, and so it's easy to find the last one[1] ;).
Also our [recommended best
practice|https://cwiki.apache.org/confluence/display/OFBIZ/OFBiz+Contributors+Best+Practices#OFBizContributorsBestPractices-Howtosendinyourcontributions(orhowtocreatepatches)]
is to name the patch with the issue number in it, and possibly adding the name
of the feature/bug when you have several patches (my own interpretation, no
need for the feature name when there is only one, else patches names become
uselessly long and complicated).
So here
{noformat}OFBIZ-10307.patch{noformat} is the patch to apply for the feature.
{noformat}OFBIZ-10307-test.patch{noformat} is the patch to test the feature
before committing as explained in my last previous comment above (look into the
patch to better understand the very simple mechanism), and
{noformat}OFBIZ-10307-test from example.patch{noformat} is the patch to apply
after the patch for the feature is committed. Then, when signed in on
https://localhost:8443/example/control/FormWidgetExamples, using the "Target
URL" button after the "Navigate to another domain with automated signed in"
label at the bottom of the FormWidgetExamples page we will be able to connect
automatically signedf in to
https://demo-trunk.ofbiz.apache.org/content/control/main which is the eventual
purpose of this issue.
The testing mechanism is easy: click on the link. Now you may wonder about
security. There will be nothing to worry about in demo, you just get to a page
with the official admin credential that you need to use to get to bakend pages
in localhost or demo. So you can't do more than what is already allowed.
I hope it's now clear enough, else just let me know :)
*Last note:* maybe we can rename some methods/funciton like js sendJwtToken
which could be sendJwtTokenAndSignin, etc.
[1] Bullet 2 of point 6 of "How to create a Jira issue" panel of
https://cwiki.apache.org/confluence/display/OFBIZ/OFBiz+Contributors+Best+Practices
> Navigate from a domain to another with automated signed in authentication
> -------------------------------------------------------------------------
>
> Key: OFBIZ-10307
> URL: https://issues.apache.org/jira/browse/OFBIZ-10307
> Project: OFBiz
> Issue Type: New Feature
> Components: framework
> Affects Versions: Trunk
> Reporter: Jacques Le Roux
> Assignee: Jacques Le Roux
> Priority: Major
> Fix For: Upcoming Branch
>
> Attachments: OFBIZ-10307-test from example.patch,
> OFBIZ-10307-test.patch, OFBIZ-10307-test.patch, OFBIZ-10307.patch,
> OFBIZ-10307.patch, OFBIZ-10307.patch
>
>
> This will use a JWT Token authentication to get from one domain, where you
> are signed in, to another domain where you get signed in automatically.
> Something like ExternalLoginKey or Tomcat SSO, but not on the same domain.
> This will build upon the initial work done at OFBIZ-9833 which has been
> partially reverted in trunk with r1827439 (see OFBIZ-10304) and r1827441. I
> explained why and what I did at [https://s.apache.org/a5Km]
> I turned to Ajax for the "Authorization" header sending. I initially thought
> I'd just pass an "Authorization" header and use it in the
> externalServerLoginCheck preprocessor, et voilà.
> But I stumbled upon something I did not know well : CORS! And in particular
> the upstream control (Pre-verified requests):
>
> [https://en.wikipedia.org/wiki/Cross-origin_resource_sharing#Preflight_example]
> [https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS]
> [https://www.w3.org/TR/cors/]
> To be able to pass an "Authorization" header, the server must respond
> positively in the Preflight HTTP response (OPTIONS). To do this, either you
> use a Tomcat filter (or your own filter, there are examples on the Net) or
> use HTTPD (or Nginx) configuration on the target server.
> I tried Tomcat first, without success. With HTTPD it's easier just 3 lines.
> For my tests, future tests by OFBiz users and as an example, I asked infra to
> put them in our HTTPD trunk demo config:
> Header set Access-Control-Allow-Origin "https://localhost:8443";
> Header set Access-Control-Allow-Headers "Authorization"
> Header set Access-Control-Allow-Credentials "true"
> No code change (either in all web.xml files for Tomcat or Java for own
> filter), and more safety. It does not give more right to outsiders than what
> we give with the admin credential.
> In Header set Access-Control-Allow-Origin you can put more domains. I just
> used [https://localhost:8443|https://localhost:8443/] for the tests.
> It works in Chrome, Firefox and Opera and partially in IE11 (not tested in
> Edge). I did not test Safari, but I guess like other modern browsers it
> should work.
> For those (very few I guess) interested by IE11 (for Edge test yourself and
> report please), here is the solution
>
> [https://stackoverflow.com/questions/12643960/internet-explorer-10-is-ignoring-xmlhttprequest-xhr-withcredentials-true]
>
> [https://web.archive.org/web/20130308142134/http://msdn.microsoft.com/en-us/library/ms537343%28v=vs.85%29.aspx]
>
> [https://blogs.msdn.microsoft.com/ieinternals/2013/09/17/a-quick-look-at-p3p/]
> TODO (maybe) in the future, use the new Fetch API (not available yet):
> [https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API]
> ----
> Here is a complement about the way it's architectured:
> # A change to cookies was introduced with OFBIZ-4959. Actually it was not
> really a bug rather a clean-up. The autoLogin cookies were only used by the
> ecommerce component and maybe webpos. But all applications were creating such
> cookies with a one year duration. They were useless until I needed them for
> the feature of this Jira issue. But even if they were safe (httponly) then I
> needed them to be clean, not a one year duration (to be as safe as possible,
> temporary cookies are better). So after doing it crudely, [inspired by
> Taher's suggestion|[https://s.apache.org/qLGC]] I introduced the
> keep-autologin-cookie <webapp> attribute in ofbiz-component.xml. It's used to
> remove not kept cookies when login in or out. So those cookies are only kept
> during a session. Also a cookie is created when an user jumps from one
> application to another on the source domain. These cookies are used when
> navigating from a domain to another to guarantee the safety of the user who
> jumps from the source domain to the target domain. Note that protected
> cookies (httponly) are one of the safer ways to store information, [js script
> can't use
> them|[https://stormpath.com/blog/where-to-store-your-jwts-cookies-vs-html5-web-storage]].
> # To jump from a domain to another I use Ajax to send a JWT token in a HTTP
> header (as recommended by CORS standard). The JWT token contains only the
> userLoginId information.
> # For authentication, I use the checkExternalServerLogin pre-processor in
> the same vein than checkExternalLoginKey. It checks a JWT token is present in
> the HTTP header of the request and if present uses the userLoginId to sign in
> the user on the target domain. I must say that the devil is in the technical
> details (of CORS) and I'll not explain that here.
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