Login: Login with IDP

[hifabienne]

As an enduser I want to be able to login with my registered idp provider.

Acceptance Criteria

• [ ] Ui is implemented in the package and used by the login ui
• [x] I am able to send the org id or primary domain to the login ui
• [x] If an org id or primary domain is sent, organization idps are shown
• [x] If no org id or primary domain is sent, instance idps are shown
• [x] User clicks on idp and is redirected to the provider
• [x] After login in the provider user gets back to login
• [x] When user is found it is sucessfully logedin
• [ ] When the user doesn't exist, depending on the configuration the user will be created automatically or a register screen is shown or the user can choose to link with an existing user
• [x] Page for the success of the login with idp
• [x] Page for the error of the login with idp
• [x] theming should be shown right

Additional Information

• LDAP does not have to be included in the first part.
• Flow:
  • Click IDP (e.g Google) Button in UI
  • Request to ZITADEL API
  • Response with IDP Endpoint
  • Redirect to IDP (Google)
  • Authenticate in IDP (Google)
  • Redirect to ZITADEL Backend
  • Response to success or error page in login
  • Handle what ever should be handled (e.g Enriche session with information)