fix: add caching to Jsonnet snippet during session JWT tokenization (#…

…3699)

go.mod

@@ -29,7 +29,6 @@ require (
 	github.com/fatih/color v1.13.0
 	github.com/ghodss/yaml v1.0.0
 	github.com/go-crypt/crypt v0.2.9
-	github.com/go-errors/errors v1.0.1
 	github.com/go-faker/faker/v4 v4.2.0
 	github.com/go-openapi/strfmt v0.21.7
 	github.com/go-playground/validator/v10 v10.4.1
@@ -127,7 +126,7 @@ require (
 	github.com/boombuler/barcode v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/cockroachdb/cockroach-go/v2 v2.2.16 // indirect
+	github.com/cockroachdb/cockroach-go/v2 v2.3.5
 	github.com/containerd/continuity v0.3.0 // indirect
 	github.com/cortesi/moddwatch v0.0.0-20210222043437-a6aaad86a36e // indirect
 	github.com/cortesi/termlog v0.0.0-20210222042314-a1eec763abec // indirect

go.sum

@@ -123,8 +123,8 @@ github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnht
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
 github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
-github.com/cockroachdb/cockroach-go/v2 v2.2.16 h1:t9dmZuC9J2W8IDQDSIGXmP+fBuEJSsrGXxWQz4cYqBY=
-github.com/cockroachdb/cockroach-go/v2 v2.2.16/go.mod h1:xZ2VHjUEb/cySv0scXBx7YsBnHtLHkR1+w/w73b5i3M=
+github.com/cockroachdb/cockroach-go/v2 v2.3.5 h1:Khtm8K6fTTz/ZCWPzU9Ne3aOW9VyAnj4qIPCJgKtwK0=
+github.com/cockroachdb/cockroach-go/v2 v2.3.5/go.mod h1:1wNJ45eSXW9AnOc3skntW9ZUZz6gxrQK3cOj3rK+BC8=
 github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkXar0TQ1gf3U=
 github.com/containerd/continuity v0.3.0 h1:nisirsYROK15TAMVukJOUyGJjz4BNQJBVsNvAXZJ/eg=
 github.com/containerd/continuity v0.3.0/go.mod h1:wJEAIwKOm/pBZuBd0JmeTvnLquTB1Ag8espWhkykbPM=
@@ -208,8 +208,6 @@ github.com/go-crypt/crypt v0.2.9 h1:5gWWTId2Qyqs9ROIsegt5pnqo9wUSRLbhpkR6JSftjg=
 github.com/go-crypt/crypt v0.2.9/go.mod h1:JjzdTYE2mArb6nBoIvvpF7o46/rK/1pfmlArCRMTFUk=
 github.com/go-crypt/x v0.2.1 h1:OGw78Bswme9lffCOX6tyuC280ouU5391glsvThMtM5U=
 github.com/go-crypt/x v0.2.1/go.mod h1:Q/y9rms7yw4/1CavBlNGn0Itg4HqwNpe1N9FX0TxXrc=
-github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
-github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-faker/faker/v4 v4.2.0 h1:dGebOupKwssrODV51E0zbMrv5e2gO9VWSLNC1WDCpWg=
 github.com/go-faker/faker/v4 v4.2.0/go.mod h1:F/bBy8GH9NxOxMInug5Gx4WYeG6fHJZ8Ol/dhcpRub4=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
@@ -563,8 +561,6 @@ github.com/jackc/pgconn v0.0.0-20190831204454-2fabfa3c18b7/go.mod h1:ZJKsE/KZfsU
 github.com/jackc/pgconn v1.8.0/go.mod h1:1C2Pb36bGIP9QHGBYCjnyhqu7Rv3sGshaQUvmfGIB/o=
 github.com/jackc/pgconn v1.9.0/go.mod h1:YctiPyvzfU11JFxoXokUOOKQXQmDMoJL9vJzHH8/2JY=
 github.com/jackc/pgconn v1.9.1-0.20210724152538-d89c8390a530/go.mod h1:4z2w8XhRbP1hYxkpTuBjTS3ne3J48K83+u0zoyvg2pI=
-github.com/jackc/pgconn v1.12.0/go.mod h1:ZkhRC59Llhrq3oSfrikvwQ5NaxYExr6twkdkMLaKono=
-github.com/jackc/pgconn v1.12.1/go.mod h1:ZkhRC59Llhrq3oSfrikvwQ5NaxYExr6twkdkMLaKono=
 github.com/jackc/pgconn v1.13.0 h1:3L1XMNV2Zvca/8BYhzcRFS70Lr0WlDg16Di6SFGAbys=
 github.com/jackc/pgconn v1.13.0/go.mod h1:AnowpAqO4CMIIJNZl2VJp+KrkAZciAkhEl0W0JIobpI=
 github.com/jackc/pgio v1.0.0 h1:g12B9UwVnzGhueNavwioyEEpAmqMe1E/BN9ES+8ovkE=
@@ -582,7 +578,6 @@ github.com/jackc/pgproto3/v2 v2.0.0-rc3/go.mod h1:ryONWYqW6dqSg1Lw6vXNMXoBJhpzvW
 github.com/jackc/pgproto3/v2 v2.0.0-rc3.0.20190831210041-4c03ce451f29/go.mod h1:ryONWYqW6dqSg1Lw6vXNMXoBJhpzvWKnT95C46ckYeM=
 github.com/jackc/pgproto3/v2 v2.0.6/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
 github.com/jackc/pgproto3/v2 v2.1.1/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
-github.com/jackc/pgproto3/v2 v2.3.0/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
 github.com/jackc/pgproto3/v2 v2.3.1 h1:nwj7qwf0S+Q7ISFfBndqeLwSwxs+4DPsbRFjECT1Y4Y=
 github.com/jackc/pgproto3/v2 v2.3.1/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
 github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b h1:C8S2+VttkHFdOOCXJe+YGfa4vHYwlt4Zx+IVXQ97jYg=
@@ -591,21 +586,17 @@ github.com/jackc/pgtype v0.0.0-20190421001408-4ed0de4755e0/go.mod h1:hdSHsc1V01C
 github.com/jackc/pgtype v0.0.0-20190824184912-ab885b375b90/go.mod h1:KcahbBH1nCMSo2DXpzsoWOAfFkdEtEJpPbVLq8eE+mc=
 github.com/jackc/pgtype v0.0.0-20190828014616-a8802b16cc59/go.mod h1:MWlu30kVJrUS8lot6TQqcg7mtthZ9T0EoIBFiJcmcyw=
 github.com/jackc/pgtype v1.8.1-0.20210724151600-32e20a603178/go.mod h1:C516IlIV9NKqfsMCXTdChteoXmwgUceqaLfjg2e3NlM=
-github.com/jackc/pgtype v1.11.0/go.mod h1:LUMuVrfsFfdKGLw+AFFVv6KtHOFMwRgDDzBt76IqCA4=
 github.com/jackc/pgtype v1.12.0 h1:Dlq8Qvcch7kiehm8wPGIW0W3KsCCHJnRacKW0UM8n5w=
 github.com/jackc/pgtype v1.12.0/go.mod h1:LUMuVrfsFfdKGLw+AFFVv6KtHOFMwRgDDzBt76IqCA4=
 github.com/jackc/pgx/v4 v4.0.0-20190420224344-cc3461e65d96/go.mod h1:mdxmSJJuR08CZQyj1PVQBHy9XOp5p8/SHH6a0psbY9Y=
 github.com/jackc/pgx/v4 v4.0.0-20190421002000-1b8f0016e912/go.mod h1:no/Y67Jkk/9WuGR0JG/JseM9irFbnEPbuWV2EELPNuM=
 github.com/jackc/pgx/v4 v4.0.0-pre1.0.20190824185557-6972a5742186/go.mod h1:X+GQnOEnf1dqHGpw7JmHqHc1NxDoalibchSk9/RWuDc=
 github.com/jackc/pgx/v4 v4.12.1-0.20210724153913-640aa07df17c/go.mod h1:1QD0+tgSXP7iUjYm9C1NxKhny7lq6ee99u/z+IHFcgs=
-github.com/jackc/pgx/v4 v4.16.0/go.mod h1:N0A9sFdWzkw/Jy1lwoiB64F2+ugFZi987zRxcPez/wI=
-github.com/jackc/pgx/v4 v4.16.1/go.mod h1:SIhx0D5hoADaiXZVyv+3gSm3LCIIINTVO0PficsvWGQ=
 github.com/jackc/pgx/v4 v4.17.2 h1:0Ut0rpeKwvIVbMQ1KbMBU4h6wxehBI535LK6Flheh8E=
 github.com/jackc/pgx/v4 v4.17.2/go.mod h1:lcxIZN44yMIrWI78a5CpucdD14hX0SBDbNRvjDBItsw=
 github.com/jackc/puddle v0.0.0-20190413234325-e4ced69a3a2b/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v0.0.0-20190608224051-11cab39313c9/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v1.1.3/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
-github.com/jackc/puddle v1.2.1/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v1.3.0/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jandelgado/gcov2lcov v1.0.5 h1:rkBt40h0CVK4oCb8Dps950gvfd1rYvQ8+cWa346lVU0=
 github.com/jandelgado/gcov2lcov v1.0.5/go.mod h1:NnSxK6TMlg1oGDBfGelGbjgorT5/L3cchlbtgFYZSss=
@@ -616,8 +607,6 @@ github.com/jessevdk/go-flags v1.5.0 h1:1jKYvbxEjfUl0fmqTCOfonvskHHXMjBySTLW4y9LF
 github.com/jessevdk/go-flags v1.5.0/go.mod h1:Fw0T6WPc1dYxT4mKEZRfG5kJhaTDP9pj1c2EWnYs/m4=
 github.com/jinzhu/copier v0.3.5 h1:GlvfUwHk62RokgqVNvYsku0TATCF7bAHVwEXoBh3iJg=
 github.com/jinzhu/copier v0.3.5/go.mod h1:DfbEm0FYsaqBcKcFuvmOZb218JkPGtvSHsKg8S8hyyg=
-github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
-github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g=
 github.com/jmoiron/sqlx v1.3.5/go.mod h1:nRVWtLre0KfCLJvgxzCsLVMogSvQ1zNJtpYr2Ccp0mQ=
 github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
@@ -697,7 +686,6 @@ github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.1.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.10.2/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-github.com/lib/pq v1.10.6/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/lib/pq v1.10.7 h1:p7ZhMD+KsSRozJr34udlUrhboJwWAgCg34+/ZZNvZZw=
 github.com/lib/pq v1.10.7/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/luna-duclos/instrumentedsql v1.1.3 h1:t7mvC0z1jUt5A0UQ6I/0H31ryymuQRnJcWCiqV3lSAA=
@@ -1131,7 +1119,6 @@ golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20220517005047-85d78b3ac167/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.3.0/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
@@ -1341,7 +1328,6 @@ golang.org/x/sys v0.0.0-20211116061358-0a5406a5449c/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220513210249-45d2b4557a2a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -1617,9 +1603,6 @@ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C
 gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gorm.io/driver/postgres v1.3.5/go.mod h1:EGCWefLFQSVFrHGy4J8EtiHCWX5Q8t0yz2Jt9aKkGzU=
-gorm.io/gorm v1.23.4/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=
-gorm.io/gorm v1.23.5/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 gotest.tools/v3 v3.2.0 h1:I0DwBVMGAx26dttAj1BtJLAkVGncrkkUXfJLC4Flt/I=
 gotest.tools/v3 v3.2.0/go.mod h1:Mcr9QNxkg0uMvy/YElmo4SpXgJKWgQvYrT7Kw5RzJ1A=

persistence/sql/persister_test.go

@@ -11,35 +11,26 @@ import (
 	"testing"
 	"time"
 
-	"golang.org/x/sync/errgroup"
-
-	"github.com/ory/x/sqlxx"
-	"github.com/ory/x/urlx"
-
-	"github.com/ory/kratos/driver/config"
-	"github.com/ory/kratos/schema"
-
-	"github.com/ory/kratos/x/xsql"
-
-	"github.com/go-errors/errors"
+	"github.com/cockroachdb/cockroach-go/v2/testserver"
 	"github.com/gobuffalo/pop/v6"
 	"github.com/gobuffalo/pop/v6/logging"
+	"github.com/pkg/errors"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-
-	"github.com/ory/x/sqlcon"
-	"github.com/ory/x/sqlcon/dockertest"
+	"golang.org/x/sync/errgroup"
 
 	continuity "github.com/ory/kratos/continuity/test"
 	"github.com/ory/kratos/corpx"
 	courier "github.com/ory/kratos/courier/test"
 	"github.com/ory/kratos/driver"
+	"github.com/ory/kratos/driver/config"
 	ri "github.com/ory/kratos/identity"
 	identity "github.com/ory/kratos/identity/test"
 	"github.com/ory/kratos/internal"
 	"github.com/ory/kratos/internal/testhelpers"
 	"github.com/ory/kratos/persistence/sql"
 	sqltesthelpers "github.com/ory/kratos/persistence/sql/testhelpers"
+	"github.com/ory/kratos/schema"
 	errorx "github.com/ory/kratos/selfservice/errorx/test"
 	lf "github.com/ory/kratos/selfservice/flow/login"
 	login "github.com/ory/kratos/selfservice/flow/login/test"
@@ -52,14 +43,19 @@ import (
 	link "github.com/ory/kratos/selfservice/strategy/link/test"
 	session "github.com/ory/kratos/session/test"
 	"github.com/ory/kratos/x"
+	"github.com/ory/kratos/x/xsql"
+	"github.com/ory/x/sqlcon"
+	"github.com/ory/x/sqlcon/dockertest"
+	"github.com/ory/x/sqlxx"
+	"github.com/ory/x/urlx"
 )
 
 func init() {
 	corpx.RegisterFakes()
 	pop.SetNowFunc(func() time.Time {
 		return time.Now().UTC().Round(time.Second)
 	})
-	//pop.Debug = true
+	// pop.Debug = true
 }
 
 func TestMain(m *testing.M) {
@@ -104,9 +100,9 @@ func createCleanDatabases(t testing.TB) map[string]*driver.RegistryDefault {
 	var l sync.Mutex
 	if !testing.Short() {
 		funcs := map[string]func(t testing.TB) string{
-			//"postgres":  dockertest.RunTestPostgreSQL,
-			//"mysql":     dockertest.RunTestMySQL,
-			"cockroach": dockertest.NewLocalTestCRDBServer,
+			"postgres":  dockertest.RunTestPostgreSQL,
+			"mysql":     dockertest.RunTestMySQL,
+			"cockroach": newLocalTestCRDBServer,
 		}
 
 		var wg sync.WaitGroup
@@ -386,3 +382,14 @@ func Benchmark_BatchCreateIdentities(b *testing.B) {
 		})
 	}
 }
+
+func newLocalTestCRDBServer(t testing.TB) string {
+	ts, err := testserver.NewTestServer(testserver.CustomVersionOpt("23.1.13"))
+	require.NoError(t, err)
+	t.Cleanup(ts.Stop)
+
+	require.NoError(t, ts.WaitForInit())
+
+	ts.PGURL().Scheme = "cockroach"
+	return ts.PGURL().String()
+}

session/tokenizer.go

@@ -5,21 +5,21 @@ package session
 
 import (
 	"context"
+	"crypto/sha256"
 	"encoding/json"
 	"time"
 
-	"go.opentelemetry.io/otel/trace"
-
-	"github.com/ory/kratos/x/events"
-
+	"github.com/dgraph-io/ristretto"
 	"github.com/gofrs/uuid"
 	"github.com/golang-jwt/jwt/v5"
 	"github.com/pkg/errors"
 	"github.com/tidwall/gjson"
+	"go.opentelemetry.io/otel/trace"
 
 	"github.com/ory/herodot"
 	"github.com/ory/kratos/driver/config"
 	"github.com/ory/kratos/x"
+	"github.com/ory/kratos/x/events"
 	"github.com/ory/x/fetcher"
 	"github.com/ory/x/jsonnetsecure"
 	"github.com/ory/x/jwksx"
@@ -51,6 +51,16 @@ func (s *Tokenizer) SetNowFunc(t func() time.Time) {
 	s.nowFunc = t
 }
 
+var cache, _ = ristretto.NewCache(&ristretto.Config{
+	NumCounters:        100000000,
+	MaxCost:            10000000,
+	BufferItems:        64,
+	IgnoreInternalCost: true,
+	Cost: func(value interface{}) int64 {
+		return 1
+	},
+})
+
 func (s *Tokenizer) TokenizeSession(ctx context.Context, template string, session *Session) (err error) {
 	ctx, span := s.r.Tracer(ctx).Tracer().Start(ctx, "sessions.ManagerHTTP.TokenizeSession")
 	defer otelx.End(span, &err)
@@ -100,9 +110,17 @@ func (s *Tokenizer) TokenizeSession(ctx context.Context, template string, sessio
 	}
 
 	if mapper := tpl.ClaimsMapperURL; len(mapper) > 0 {
-		jn, err := fetch.FetchContext(ctx, mapper)
-		if err != nil {
-			return err
+		var jsonnet string
+		cacheKey := sha256.Sum256([]byte(mapper))
+		if result, found := cache.Get(cacheKey[:]); found {
+			jsonnet = result.(string)
+		} else {
+			jn, err := fetch.FetchContext(ctx, mapper)
+			if err != nil {
+				return err
+			}
+			jsonnet = jn.String()
+			cache.SetWithTTL(cacheKey[:], jsonnet, 1, time.Hour)
 		}
 
 		sessionRaw, err := json.Marshal(session)
@@ -118,7 +136,7 @@ func (s *Tokenizer) TokenizeSession(ctx context.Context, template string, sessio
 		vm.ExtCode("session", string(sessionRaw))
 		vm.ExtCode("claims", string(claimsRaw))
 
-		evaluated, err := vm.EvaluateAnonymousSnippet(tpl.ClaimsMapperURL, jn.String())
+		evaluated, err := vm.EvaluateAnonymousSnippet(tpl.ClaimsMapperURL, jsonnet)
 		if err != nil {
 			return errors.WithStack(herodot.ErrBadRequest.WithWrap(err).WithDebug(err.Error()).WithReasonf("Unable to execute tokenizer JsonNet."))
 		}