Identity Server 4 - How to Define Supported Grant Types etc












0















In a current ASP.NET Core project (v2.1.6) Identity Server 4 (v2.2.0) was implemented for user and API authentication and it works like a charm. The only grant_type that is set to the clients is client-credentials and the scopes are set to a few custom scopes where offline_access is not allowed.



After visiting the .well-known/openid-configuration it was found that more grant_types are supported than specified and offline_access is a supported scope even though it was disabled (shortened for brevity):



{
"scopes_supported": [
"custom_scope_1",
"custom_scope_2",
"offline_access"
],
"grant_types_supported": [
"authorization_code",
"client_credentials",
"refresh_token",
"implicit",
"password"
],
}


The documentation of both IdentityServer4 but could not find a clue how to set such an option. I stumbled upon an possibly older documentation but this seems not to be part of the current version.



Is there any possibility to explicitly define the supported grant types during configuration which I just missed? Or is it generated automatically and cannot be set at all?










share|improve this question



























    0















    In a current ASP.NET Core project (v2.1.6) Identity Server 4 (v2.2.0) was implemented for user and API authentication and it works like a charm. The only grant_type that is set to the clients is client-credentials and the scopes are set to a few custom scopes where offline_access is not allowed.



    After visiting the .well-known/openid-configuration it was found that more grant_types are supported than specified and offline_access is a supported scope even though it was disabled (shortened for brevity):



    {
    "scopes_supported": [
    "custom_scope_1",
    "custom_scope_2",
    "offline_access"
    ],
    "grant_types_supported": [
    "authorization_code",
    "client_credentials",
    "refresh_token",
    "implicit",
    "password"
    ],
    }


    The documentation of both IdentityServer4 but could not find a clue how to set such an option. I stumbled upon an possibly older documentation but this seems not to be part of the current version.



    Is there any possibility to explicitly define the supported grant types during configuration which I just missed? Or is it generated automatically and cannot be set at all?










    share|improve this question

























      0












      0








      0








      In a current ASP.NET Core project (v2.1.6) Identity Server 4 (v2.2.0) was implemented for user and API authentication and it works like a charm. The only grant_type that is set to the clients is client-credentials and the scopes are set to a few custom scopes where offline_access is not allowed.



      After visiting the .well-known/openid-configuration it was found that more grant_types are supported than specified and offline_access is a supported scope even though it was disabled (shortened for brevity):



      {
      "scopes_supported": [
      "custom_scope_1",
      "custom_scope_2",
      "offline_access"
      ],
      "grant_types_supported": [
      "authorization_code",
      "client_credentials",
      "refresh_token",
      "implicit",
      "password"
      ],
      }


      The documentation of both IdentityServer4 but could not find a clue how to set such an option. I stumbled upon an possibly older documentation but this seems not to be part of the current version.



      Is there any possibility to explicitly define the supported grant types during configuration which I just missed? Or is it generated automatically and cannot be set at all?










      share|improve this question














      In a current ASP.NET Core project (v2.1.6) Identity Server 4 (v2.2.0) was implemented for user and API authentication and it works like a charm. The only grant_type that is set to the clients is client-credentials and the scopes are set to a few custom scopes where offline_access is not allowed.



      After visiting the .well-known/openid-configuration it was found that more grant_types are supported than specified and offline_access is a supported scope even though it was disabled (shortened for brevity):



      {
      "scopes_supported": [
      "custom_scope_1",
      "custom_scope_2",
      "offline_access"
      ],
      "grant_types_supported": [
      "authorization_code",
      "client_credentials",
      "refresh_token",
      "implicit",
      "password"
      ],
      }


      The documentation of both IdentityServer4 but could not find a clue how to set such an option. I stumbled upon an possibly older documentation but this seems not to be part of the current version.



      Is there any possibility to explicitly define the supported grant types during configuration which I just missed? Or is it generated automatically and cannot be set at all?







      asp.net-core identityserver4 openid-connect






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 14:53









      mmrmmr

      886




      886
























          1 Answer
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          2














          I believe those are all the ones that IdentityServer4 supports; i.e. its capabilities.



          You can see how they are added here (line 223); the short answer is they are based on the server capabilities/configuration, and not individual Clients.





          You configure each Client individually with the grant type(s) you want it to have enabled with the ClientGrantTypes collection.



          If you're using the in-memory Client collection, these are called AllowedGrantTypes there.





          Addition: as .well-known/openid-configuration is an open standards concept, not an IdentityServer one, you can see confirmation of the above here.




          grant_types_supported



          OPTIONAL. JSON array containing a list of the OAuth 2.0 Grant Type values that this OP supports.







          share|improve this answer


























          • Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

            – mmr
            Nov 22 '18 at 15:04











          • I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

            – sellotape
            Nov 22 '18 at 15:08











          • @mmr - I updated the answer with a bit more info.

            – sellotape
            Nov 22 '18 at 15:16











          • Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

            – mmr
            Nov 22 '18 at 15:42











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          I believe those are all the ones that IdentityServer4 supports; i.e. its capabilities.



          You can see how they are added here (line 223); the short answer is they are based on the server capabilities/configuration, and not individual Clients.





          You configure each Client individually with the grant type(s) you want it to have enabled with the ClientGrantTypes collection.



          If you're using the in-memory Client collection, these are called AllowedGrantTypes there.





          Addition: as .well-known/openid-configuration is an open standards concept, not an IdentityServer one, you can see confirmation of the above here.




          grant_types_supported



          OPTIONAL. JSON array containing a list of the OAuth 2.0 Grant Type values that this OP supports.







          share|improve this answer


























          • Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

            – mmr
            Nov 22 '18 at 15:04











          • I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

            – sellotape
            Nov 22 '18 at 15:08











          • @mmr - I updated the answer with a bit more info.

            – sellotape
            Nov 22 '18 at 15:16











          • Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

            – mmr
            Nov 22 '18 at 15:42
















          2














          I believe those are all the ones that IdentityServer4 supports; i.e. its capabilities.



          You can see how they are added here (line 223); the short answer is they are based on the server capabilities/configuration, and not individual Clients.





          You configure each Client individually with the grant type(s) you want it to have enabled with the ClientGrantTypes collection.



          If you're using the in-memory Client collection, these are called AllowedGrantTypes there.





          Addition: as .well-known/openid-configuration is an open standards concept, not an IdentityServer one, you can see confirmation of the above here.




          grant_types_supported



          OPTIONAL. JSON array containing a list of the OAuth 2.0 Grant Type values that this OP supports.







          share|improve this answer


























          • Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

            – mmr
            Nov 22 '18 at 15:04











          • I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

            – sellotape
            Nov 22 '18 at 15:08











          • @mmr - I updated the answer with a bit more info.

            – sellotape
            Nov 22 '18 at 15:16











          • Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

            – mmr
            Nov 22 '18 at 15:42














          2












          2








          2







          I believe those are all the ones that IdentityServer4 supports; i.e. its capabilities.



          You can see how they are added here (line 223); the short answer is they are based on the server capabilities/configuration, and not individual Clients.





          You configure each Client individually with the grant type(s) you want it to have enabled with the ClientGrantTypes collection.



          If you're using the in-memory Client collection, these are called AllowedGrantTypes there.





          Addition: as .well-known/openid-configuration is an open standards concept, not an IdentityServer one, you can see confirmation of the above here.




          grant_types_supported



          OPTIONAL. JSON array containing a list of the OAuth 2.0 Grant Type values that this OP supports.







          share|improve this answer















          I believe those are all the ones that IdentityServer4 supports; i.e. its capabilities.



          You can see how they are added here (line 223); the short answer is they are based on the server capabilities/configuration, and not individual Clients.





          You configure each Client individually with the grant type(s) you want it to have enabled with the ClientGrantTypes collection.



          If you're using the in-memory Client collection, these are called AllowedGrantTypes there.





          Addition: as .well-known/openid-configuration is an open standards concept, not an IdentityServer one, you can see confirmation of the above here.




          grant_types_supported



          OPTIONAL. JSON array containing a list of the OAuth 2.0 Grant Type values that this OP supports.








          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 22 '18 at 16:03

























          answered Nov 22 '18 at 15:00









          sellotapesellotape

          5,65821619




          5,65821619













          • Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

            – mmr
            Nov 22 '18 at 15:04











          • I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

            – sellotape
            Nov 22 '18 at 15:08











          • @mmr - I updated the answer with a bit more info.

            – sellotape
            Nov 22 '18 at 15:16











          • Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

            – mmr
            Nov 22 '18 at 15:42



















          • Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

            – mmr
            Nov 22 '18 at 15:04











          • I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

            – sellotape
            Nov 22 '18 at 15:08











          • @mmr - I updated the answer with a bit more info.

            – sellotape
            Nov 22 '18 at 15:16











          • Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

            – mmr
            Nov 22 '18 at 15:42

















          Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

          – mmr
          Nov 22 '18 at 15:04





          Alright - so the document is generated based on what the server supports in total no matter what the actual clients support?! If the authentication is successful depends then on the actual setting for the client (which works as wanted).

          – mmr
          Nov 22 '18 at 15:04













          I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

          – sellotape
          Nov 22 '18 at 15:08





          I'll check the first part, but certainly the second part is true (although clearly you can only add Client grant types that fall within the server's capabilities).

          – sellotape
          Nov 22 '18 at 15:08













          @mmr - I updated the answer with a bit more info.

          – sellotape
          Nov 22 '18 at 15:16





          @mmr - I updated the answer with a bit more info.

          – sellotape
          Nov 22 '18 at 15:16













          Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

          – mmr
          Nov 22 '18 at 15:42





          Thanks a lot @sellotape! I understand now how it works. The grant types are as supported by the auth server / OP, in this case IDS4, and can be extended by custom grants if required - see the docs.

          – mmr
          Nov 22 '18 at 15:42


















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