feat: add pkce support to oidc server

Co-authored-by: GitHub <noreply@github.com>

.github/dependabot.yml

@@ -24,3 +24,8 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/ci.yml

@@ -10,13 +10,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup bun
         uses: oven-sh/setup-bun@v2
 
       - name: Setup go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: "^1.26.0"
 
@@ -56,6 +56,6 @@ jobs:
         run: go test -coverprofile=coverage.txt -v ./...
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/nightly.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Delete old release
         run: gh release delete --cleanup-tag --yes nightly || echo release not found
@@ -33,7 +33,7 @@ jobs:
       BUILD_TIMESTAMP: ${{ steps.metadata.outputs.BUILD_TIMESTAMP }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -51,7 +51,7 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -59,7 +59,7 @@ jobs:
         uses: oven-sh/setup-bun@v2
 
       - name: Install go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: "^1.26.0"
 
@@ -94,7 +94,7 @@ jobs:
           CGO_ENABLED: 0
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tinyauth-amd64
           path: tinyauth-amd64
@@ -106,7 +106,7 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -114,7 +114,7 @@ jobs:
         uses: oven-sh/setup-bun@v2
 
       - name: Install go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: "^1.26.0"
 
@@ -149,7 +149,7 @@ jobs:
           CGO_ENABLED: 0
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tinyauth-arm64
           path: tinyauth-arm64
@@ -161,7 +161,7 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -176,22 +176,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/amd64
@@ -213,7 +213,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-linux-amd64
           path: ${{ runner.temp }}/digests/*
@@ -228,7 +228,7 @@ jobs:
       - image-build
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -243,22 +243,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/amd64
@@ -281,7 +281,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-distroless-linux-amd64
           path: ${{ runner.temp }}/digests/*
@@ -295,7 +295,7 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -310,22 +310,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/arm64
@@ -347,7 +347,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-linux-arm64
           path: ${{ runner.temp }}/digests/*
@@ -362,7 +362,7 @@ jobs:
       - image-build-arm
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: nightly
 
@@ -377,22 +377,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/arm64
@@ -415,7 +415,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-distroless-linux-arm64
           path: ${{ runner.temp }}/digests/*
@@ -429,25 +429,25 @@ jobs:
       - image-build-arm
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: ${{ runner.temp }}/digests
           pattern: digests-*
           merge-multiple: true
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
           flavor: |
@@ -468,25 +468,25 @@ jobs:
       - image-build-arm-distroless
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: ${{ runner.temp }}/digests
           pattern: digests-distroless-*
           merge-multiple: true
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
           flavor: |
@@ -506,7 +506,7 @@ jobs:
       - binary-build
       - binary-build-arm
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: tinyauth-*
           path: binaries

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
       BUILD_TIMESTAMP: ${{ steps.metadata.outputs.BUILD_TIMESTAMP }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Generate metadata
         id: metadata
@@ -29,13 +29,13 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install bun
         uses: oven-sh/setup-bun@v2
 
       - name: Install go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: "^1.26.0"
 
@@ -70,7 +70,7 @@ jobs:
           CGO_ENABLED: 0
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tinyauth-amd64
           path: tinyauth-amd64
@@ -81,13 +81,13 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install bun
         uses: oven-sh/setup-bun@v2
 
       - name: Install go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: "^1.26.0"
 
@@ -122,7 +122,7 @@ jobs:
           CGO_ENABLED: 0
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tinyauth-arm64
           path: tinyauth-arm64
@@ -133,7 +133,7 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Initialize submodules
         run: |
@@ -146,22 +146,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/amd64
@@ -183,7 +183,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-linux-amd64
           path: ${{ runner.temp }}/digests/*
@@ -197,7 +197,7 @@ jobs:
       - image-build
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Initialize submodules
         run: |
@@ -210,22 +210,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/amd64
@@ -248,7 +248,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-distroless-linux-amd64
           path: ${{ runner.temp }}/digests/*
@@ -261,7 +261,7 @@ jobs:
       - generate-metadata
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Initialize submodules
         run: |
@@ -274,22 +274,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/arm64
@@ -311,7 +311,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-linux-arm64
           path: ${{ runner.temp }}/digests/*
@@ -325,7 +325,7 @@ jobs:
       - image-build-arm
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Initialize submodules
         run: |
@@ -338,22 +338,22 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         id: build
         with:
           platforms: linux/arm64
@@ -376,7 +376,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-distroless-linux-arm64
           path: ${{ runner.temp }}/digests/*
@@ -390,25 +390,25 @@ jobs:
       - image-build-arm
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: ${{ runner.temp }}/digests
           pattern: digests-*
           merge-multiple: true
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
           flavor: |
@@ -431,25 +431,25 @@ jobs:
       - image-build-arm-distroless
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: ${{ runner.temp }}/digests
           pattern: digests-distroless-*
           merge-multiple: true
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository_owner }}/tinyauth
           flavor: |
@@ -473,7 +473,7 @@ jobs:
       - binary-build
       - binary-build-arm
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: tinyauth-*
           path: binaries

.github/workflows/sponsors.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Generate Sponsors
         uses: JamesIves/github-sponsors-readme-action@v1

.github/workflows/stale.yml

@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v9
+      - uses: actions/stale@v10
         with:
           days-before-stale: 30
           stale-pr-message: This PR has been inactive for 30 days and will be marked as stale.

README.md

@@ -58,7 +58,7 @@ Tinyauth is licensed under the GNU General Public License v3.0. TL;DR — You ma
 
 A big thank you to the following people for providing me with more coffee:
 
-<!-- sponsors --><a href="https://github.com/erwinkramer"><img src="https:&#x2F;&#x2F;github.com&#x2F;erwinkramer.png" width="64px" alt="User avatar: erwinkramer" /></a>&nbsp;&nbsp;<a href="https://github.com/nicotsx"><img src="https:&#x2F;&#x2F;github.com&#x2F;nicotsx.png" width="64px" alt="User avatar: nicotsx" /></a>&nbsp;&nbsp;<a href="https://github.com/SimpleHomelab"><img src="https:&#x2F;&#x2F;github.com&#x2F;SimpleHomelab.png" width="64px" alt="User avatar: SimpleHomelab" /></a>&nbsp;&nbsp;<a href="https://github.com/jmadden91"><img src="https:&#x2F;&#x2F;github.com&#x2F;jmadden91.png" width="64px" alt="User avatar: jmadden91" /></a>&nbsp;&nbsp;<a href="https://github.com/tribor"><img src="https:&#x2F;&#x2F;github.com&#x2F;tribor.png" width="64px" alt="User avatar: tribor" /></a>&nbsp;&nbsp;<a href="https://github.com/eliasbenb"><img src="https:&#x2F;&#x2F;github.com&#x2F;eliasbenb.png" width="64px" alt="User avatar: eliasbenb" /></a>&nbsp;&nbsp;<a href="https://github.com/afunworm"><img src="https:&#x2F;&#x2F;github.com&#x2F;afunworm.png" width="64px" alt="User avatar: afunworm" /></a>&nbsp;&nbsp;<a href="https://github.com/chip-well"><img src="https:&#x2F;&#x2F;github.com&#x2F;chip-well.png" width="64px" alt="User avatar: chip-well" /></a>&nbsp;&nbsp;<a href="https://github.com/Lancelot-Enguerrand"><img src="https:&#x2F;&#x2F;github.com&#x2F;Lancelot-Enguerrand.png" width="64px" alt="User avatar: Lancelot-Enguerrand" /></a>&nbsp;&nbsp;<a href="https://github.com/allgoewer"><img src="https:&#x2F;&#x2F;github.com&#x2F;allgoewer.png" width="64px" alt="User avatar: allgoewer" /></a>&nbsp;&nbsp;<a href="https://github.com/NEANC"><img src="https:&#x2F;&#x2F;github.com&#x2F;NEANC.png" width="64px" alt="User avatar: NEANC" /></a>&nbsp;&nbsp;<a href="https://github.com/ax-mad"><img src="https:&#x2F;&#x2F;github.com&#x2F;ax-mad.png" width="64px" alt="User avatar: ax-mad" /></a>&nbsp;&nbsp;<!-- sponsors -->
+<!-- sponsors --><a href="https://github.com/erwinkramer"><img src="https:&#x2F;&#x2F;github.com&#x2F;erwinkramer.png" width="64px" alt="User avatar: erwinkramer" /></a>&nbsp;&nbsp;<a href="https://github.com/nicotsx"><img src="https:&#x2F;&#x2F;github.com&#x2F;nicotsx.png" width="64px" alt="User avatar: nicotsx" /></a>&nbsp;&nbsp;<a href="https://github.com/SimpleHomelab"><img src="https:&#x2F;&#x2F;github.com&#x2F;SimpleHomelab.png" width="64px" alt="User avatar: SimpleHomelab" /></a>&nbsp;&nbsp;<a href="https://github.com/jmadden91"><img src="https:&#x2F;&#x2F;github.com&#x2F;jmadden91.png" width="64px" alt="User avatar: jmadden91" /></a>&nbsp;&nbsp;<a href="https://github.com/tribor"><img src="https:&#x2F;&#x2F;github.com&#x2F;tribor.png" width="64px" alt="User avatar: tribor" /></a>&nbsp;&nbsp;<a href="https://github.com/eliasbenb"><img src="https:&#x2F;&#x2F;github.com&#x2F;eliasbenb.png" width="64px" alt="User avatar: eliasbenb" /></a>&nbsp;&nbsp;<a href="https://github.com/afunworm"><img src="https:&#x2F;&#x2F;github.com&#x2F;afunworm.png" width="64px" alt="User avatar: afunworm" /></a>&nbsp;&nbsp;<a href="https://github.com/chip-well"><img src="https:&#x2F;&#x2F;github.com&#x2F;chip-well.png" width="64px" alt="User avatar: chip-well" /></a>&nbsp;&nbsp;<a href="https://github.com/Lancelot-Enguerrand"><img src="https:&#x2F;&#x2F;github.com&#x2F;Lancelot-Enguerrand.png" width="64px" alt="User avatar: Lancelot-Enguerrand" /></a>&nbsp;&nbsp;<a href="https://github.com/allgoewer"><img src="https:&#x2F;&#x2F;github.com&#x2F;allgoewer.png" width="64px" alt="User avatar: allgoewer" /></a>&nbsp;&nbsp;<a href="https://github.com/NEANC"><img src="https:&#x2F;&#x2F;github.com&#x2F;NEANC.png" width="64px" alt="User avatar: NEANC" /></a>&nbsp;&nbsp;<a href="https://github.com/ax-mad"><img src="https:&#x2F;&#x2F;github.com&#x2F;ax-mad.png" width="64px" alt="User avatar: ax-mad" /></a>&nbsp;&nbsp;<a href="https://github.com/stegratech"><img src="https:&#x2F;&#x2F;github.com&#x2F;stegratech.png" width="64px" alt="User avatar: stegratech" /></a>&nbsp;&nbsp;<!-- sponsors -->
 
 ## Acknowledgements
 

frontend/src/lib/hooks/oidc.ts

@@ -5,6 +5,8 @@ export type OIDCValues = {
   redirect_uri: string;
   state: string;
   nonce: string;
+  code_challenge: string;
+  code_challenge_method: string;
 };
 
 interface IuseOIDCParams {
@@ -14,7 +16,12 @@ interface IuseOIDCParams {
   missingParams: string[];
 }
 
-const optionalParams: string[] = ["state", "nonce"];
+const optionalParams: string[] = [
+  "state",
+  "nonce",
+  "code_challenge",
+  "code_challenge_method",
+];
 
 export function useOIDCParams(params: URLSearchParams): IuseOIDCParams {
   let compiled: string = "";
@@ -28,6 +35,8 @@ export function useOIDCParams(params: URLSearchParams): IuseOIDCParams {
     redirect_uri: params.get("redirect_uri") ?? "",
     state: params.get("state") ?? "",
     nonce: params.get("nonce") ?? "",
+    code_challenge: params.get("code_challenge") ?? "",
+    code_challenge_method: params.get("code_challenge_method") ?? "",
   };
 
   for (const key of Object.keys(values)) {

internal/assets/migrations/000007_oidc_pkce.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "oidc_codes" DROP COLUMN "code_challenge";
+ALTER TABLE "oidc_codes" DROP COLUMN "code_challenge_method";

internal/assets/migrations/000007_oidc_pkce.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "oidc_codes" ADD COLUMN "code_challenge" TEXT DEFAULT "";
+ALTER TABLE "oidc_codes" ADD COLUMN "code_challenge_method" TEXT DEFAULT "";

internal/controller/oidc_controller.go

@@ -34,6 +34,7 @@ type TokenRequest struct {
 	RefreshToken string `form:"refresh_token" url:"refresh_token"`
 	ClientSecret string `form:"client_secret" url:"client_secret"`
 	ClientID     string `form:"client_id" url:"client_id"`
+	CodeVerifier string `form:"code_verifier" url:"code_verifier"`
 }
 
 type CallbackError struct {
@@ -308,6 +309,16 @@ func (controller *OIDCController) Token(c *gin.Context) {
 			return
 		}
 
+		ok := controller.oidc.ValidatePKCE(entry.CodeChallenge, entry.CodeChallengeMethod, req.CodeVerifier)
+
+		if !ok {
+			tlog.App.Warn().Msg("PKCE validation failed")
+			c.JSON(400, gin.H{
+				"error": "invalid_grant",
+			})
+			return
+		}
+
 		tokenRes, err := controller.oidc.GenerateAccessToken(c, client, entry)
 
 		if err != nil {

internal/controller/proxy_controller.go

@@ -25,6 +25,15 @@ const (
 	ForwardAuth
 )
 
+type ProxyType int
+
+const (
+	Traefik ProxyType = iota
+	Caddy
+	Envoy
+	Nginx
+)
+
 var BrowserUserAgentRegex = regexp.MustCompile("Chrome|Gecko|AppleWebKit|Opera|Edge")
 
 type Proxy struct {
@@ -38,6 +47,7 @@ type ProxyContext struct {
 	Method    string
 	Type      AuthModuleType
 	IsBrowser bool
+	ProxyType ProxyType
 }
 
 type ProxyControllerConfig struct {
@@ -121,7 +131,7 @@ func (controller *ProxyController) proxyHandler(c *gin.Context) {
 	}
 
 	if !controller.auth.CheckIP(acls.IP, clientIP) {
-		if !controller.useFriendlyError(proxyCtx) {
+		if !controller.useBrowserResponse(proxyCtx) {
 			c.JSON(401, gin.H{
 				"status":  401,
 				"message": "Unauthorized",
@@ -165,7 +175,7 @@ func (controller *ProxyController) proxyHandler(c *gin.Context) {
 		if !userAllowed {
 			tlog.App.Warn().Str("user", userContext.Username).Str("resource", strings.Split(proxyCtx.Host, ".")[0]).Msg("User not allowed to access resource")
 
-			if !controller.useFriendlyError(proxyCtx) {
+			if !controller.useBrowserResponse(proxyCtx) {
 				c.JSON(403, gin.H{
 					"status":  403,
 					"message": "Forbidden",
@@ -205,7 +215,7 @@ func (controller *ProxyController) proxyHandler(c *gin.Context) {
 			if !groupOK {
 				tlog.App.Warn().Str("user", userContext.Username).Str("resource", strings.Split(proxyCtx.Host, ".")[0]).Msg("User groups do not match resource requirements")
 
-				if !controller.useFriendlyError(proxyCtx) {
+				if !controller.useBrowserResponse(proxyCtx) {
 					c.JSON(403, gin.H{
 						"status":  403,
 						"message": "Forbidden",
@@ -256,7 +266,7 @@ func (controller *ProxyController) proxyHandler(c *gin.Context) {
 		return
 	}
 
-	if !controller.useFriendlyError(proxyCtx) {
+	if !controller.useBrowserResponse(proxyCtx) {
 		c.JSON(401, gin.H{
 			"status":  401,
 			"message": "Unauthorized",
@@ -296,7 +306,7 @@ func (controller *ProxyController) setHeaders(c *gin.Context, acls config.App) {
 }
 
 func (controller *ProxyController) handleError(c *gin.Context, proxyCtx ProxyContext) {
-	if !controller.useFriendlyError(proxyCtx) {
+	if !controller.useBrowserResponse(proxyCtx) {
 		c.JSON(500, gin.H{
 			"status":  500,
 			"message": "Internal Server Error",
@@ -312,8 +322,34 @@ func (controller *ProxyController) getHeader(c *gin.Context, header string) (str
 	return val, strings.TrimSpace(val) != ""
 }
 
-func (controller *ProxyController) useFriendlyError(proxyCtx ProxyContext) bool {
+func (controller *ProxyController) useBrowserResponse(proxyCtx ProxyContext) bool {
-	return (proxyCtx.Type == ForwardAuth || proxyCtx.Type == ExtAuthz) && proxyCtx.IsBrowser
+	// If it's nginx or envoy we need non-browser response
+	if proxyCtx.ProxyType == Nginx || proxyCtx.ProxyType == Envoy {
+		return false
+	}
+
+	// For other proxies (traefik or caddy) we can check
+	// the user agent to determine if it's a browser or not
+	if proxyCtx.IsBrowser {
+		return true
+	}
+
+	return false
+}
+
+func (controller *ProxyController) getProxyType(proxy string) (ProxyType, error) {
+	switch proxy {
+	case "traefik":
+		return Traefik, nil
+	case "caddy":
+		return Caddy, nil
+	case "envoy":
+		return Envoy, nil
+	case "nginx":
+		return Nginx, nil
+	default:
+		return 0, fmt.Errorf("unsupported proxy type: %v", proxy)
+	}
 }
 
 // Code below is inspired from https://github.com/authelia/authelia/blob/master/internal/handlers/handler_authz.go
@@ -417,13 +453,13 @@ func (controller *ProxyController) getExtAuthzContext(c *gin.Context) (ProxyCont
 	}, nil
 }
 
-func (controller *ProxyController) determineAuthModules(proxy string) []AuthModuleType {
+func (controller *ProxyController) determineAuthModules(proxy ProxyType) []AuthModuleType {
 	switch proxy {
-	case "traefik", "caddy":
+	case Traefik, Caddy:
 		return []AuthModuleType{ForwardAuth}
-	case "envoy":
+	case Envoy:
 		return []AuthModuleType{ExtAuthz, ForwardAuth}
-	case "nginx":
+	case Nginx:
 		return []AuthModuleType{AuthRequest, ForwardAuth}
 	default:
 		return []AuthModuleType{}
@@ -462,9 +498,15 @@ func (controller *ProxyController) getProxyContext(c *gin.Context) (ProxyContext
 		return ProxyContext{}, err
 	}
 
+	proxy, err := controller.getProxyType(req.Proxy)
+
+	if err != nil {
+		return ProxyContext{}, err
+	}
+
 	tlog.App.Debug().Msgf("Proxy: %v", req.Proxy)
 
-	authModules := controller.determineAuthModules(req.Proxy)
+	authModules := controller.determineAuthModules(proxy)
 
 	if len(authModules) == 0 {
 		return ProxyContext{}, fmt.Errorf("no auth modules supported for proxy: %v", req.Proxy)
@@ -497,5 +539,6 @@ func (controller *ProxyController) getProxyContext(c *gin.Context) (ProxyContext
 	}
 
 	ctx.IsBrowser = isBrowser
+	ctx.ProxyType = proxy
 	return ctx, nil
 }

internal/controller/proxy_controller_test.go

@@ -164,6 +164,79 @@ func TestProxyController(t *testing.T) {
 				assert.Equal(t, 401, recorder.Code)
 			},
 		},
+		{
+			description: "Ensure forward auth fallback for nginx with browser user agent",
+			middlewares: []gin.HandlerFunc{},
+			run: func(t *testing.T, router *gin.Engine, recorder *httptest.ResponseRecorder) {
+				req := httptest.NewRequest("GET", "/api/auth/nginx", nil)
+				req.Header.Set("x-forwarded-host", "test.example.com")
+				req.Header.Set("x-forwarded-proto", "https")
+				req.Header.Set("x-forwarded-uri", "/")
+				req.Header.Set("user-agent", browserUserAgent)
+				router.ServeHTTP(recorder, req)
+				assert.Equal(t, 401, recorder.Code)
+			},
+		},
+		{
+			description: "Ensure forward auth fallback for envoy with browser user agent",
+			middlewares: []gin.HandlerFunc{},
+			run: func(t *testing.T, router *gin.Engine, recorder *httptest.ResponseRecorder) {
+				req := httptest.NewRequest("HEAD", "/api/auth/envoy?path=/hello", nil)
+				req.Header.Set("x-forwarded-host", "test.example.com")
+				req.Header.Set("x-forwarded-proto", "https")
+				req.Header.Set("x-forwarded-uri", "/hello")
+				req.Header.Set("user-agent", browserUserAgent)
+				router.ServeHTTP(recorder, req)
+				assert.Equal(t, 401, recorder.Code)
+			},
+		},
+		{
+			description: "Ensure forward auth with is browser false returns json",
+			middlewares: []gin.HandlerFunc{},
+			run: func(t *testing.T, router *gin.Engine, recorder *httptest.ResponseRecorder) {
+				req := httptest.NewRequest("GET", "/api/auth/traefik", nil)
+				req.Header.Set("x-forwarded-host", "test.example.com")
+				req.Header.Set("x-forwarded-proto", "https")
+				req.Header.Set("x-forwarded-uri", "/")
+				router.ServeHTTP(recorder, req)
+
+				assert.Equal(t, 401, recorder.Code)
+				assert.Contains(t, recorder.Body.String(), `"status":401`)
+				assert.Contains(t, recorder.Body.String(), `"message":"Unauthorized"`)
+			},
+		},
+		{
+			description: "Ensure forward auth with caddy and browser user agent returns redirect",
+			middlewares: []gin.HandlerFunc{},
+			run: func(t *testing.T, router *gin.Engine, recorder *httptest.ResponseRecorder) {
+				req := httptest.NewRequest("GET", "/api/auth/traefik", nil)
+				req.Header.Set("x-forwarded-host", "test.example.com")
+				req.Header.Set("x-forwarded-proto", "https")
+				req.Header.Set("x-forwarded-uri", "/")
+				req.Header.Set("user-agent", browserUserAgent)
+				router.ServeHTTP(recorder, req)
+
+				assert.Equal(t, 307, recorder.Code)
+				location := recorder.Header().Get("Location")
+				assert.Contains(t, location, "https://tinyauth.example.com/login?redirect_uri=")
+				assert.Contains(t, location, "https%3A%2F%2Ftest.example.com%2F")
+			},
+		},
+		{
+			description: "Ensure forward auth with caddy and non browser user agent returns json",
+			middlewares: []gin.HandlerFunc{},
+			run: func(t *testing.T, router *gin.Engine, recorder *httptest.ResponseRecorder) {
+				req := httptest.NewRequest("GET", "/api/auth/traefik", nil)
+				req.Header.Set("x-forwarded-host", "test.example.com")
+				req.Header.Set("x-forwarded-proto", "https")
+				req.Header.Set("x-forwarded-uri", "/")
+				router.ServeHTTP(recorder, req)
+
+				assert.Equal(t, 401, recorder.Code)
+				assert.Contains(t, recorder.Body.String(), `"status":401`)
+				assert.Contains(t, recorder.Body.String(), `"message":"Unauthorized"`)
+			},
+		},
 		{
 			description: "Ensure normal authentication flow for forward auth",
 			middlewares: []gin.HandlerFunc{

internal/repository/models.go

@@ -12,6 +12,8 @@ type OidcCode struct {
 	ClientID            string
 	ExpiresAt           int64
 	Nonce               string
+	CodeChallenge       string
+	CodeChallengeMethod string
 }
 
 type OidcToken struct {

internal/repository/oidc_queries.sql.go

@@ -17,11 +17,13 @@ INSERT INTO "oidc_codes" (
     "redirect_uri",
     "client_id",
     "expires_at",
-    "nonce"
+    "nonce",
+    "code_challenge",
+    "code_challenge_method"
 ) VALUES (
-    ?, ?, ?, ?, ?, ?, ?
+    ?, ?, ?, ?, ?, ?, ?, ?, ?
 )
-RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce
+RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce, code_challenge, code_challenge_method
 `
 
 type CreateOidcCodeParams struct {
@@ -32,6 +34,8 @@ type CreateOidcCodeParams struct {
 	ClientID            string
 	ExpiresAt           int64
 	Nonce               string
+	CodeChallenge       string
+	CodeChallengeMethod string
 }
 
 func (q *Queries) CreateOidcCode(ctx context.Context, arg CreateOidcCodeParams) (OidcCode, error) {
@@ -43,6 +47,8 @@ func (q *Queries) CreateOidcCode(ctx context.Context, arg CreateOidcCodeParams)
 		arg.ClientID,
 		arg.ExpiresAt,
 		arg.Nonce,
+		arg.CodeChallenge,
+		arg.CodeChallengeMethod,
 	)
 	var i OidcCode
 	err := row.Scan(
@@ -53,6 +59,8 @@ func (q *Queries) CreateOidcCode(ctx context.Context, arg CreateOidcCodeParams)
 		&i.ClientID,
 		&i.ExpiresAt,
 		&i.Nonce,
+		&i.CodeChallenge,
+		&i.CodeChallengeMethod,
 	)
 	return i, err
 }
@@ -156,7 +164,7 @@ func (q *Queries) CreateOidcUserInfo(ctx context.Context, arg CreateOidcUserInfo
 const deleteExpiredOidcCodes = `-- name: DeleteExpiredOidcCodes :many
 DELETE FROM "oidc_codes"
 WHERE "expires_at" < ?
-RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce
+RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce, code_challenge, code_challenge_method
 `
 
 func (q *Queries) DeleteExpiredOidcCodes(ctx context.Context, expiresAt int64) ([]OidcCode, error) {
@@ -176,6 +184,8 @@ func (q *Queries) DeleteExpiredOidcCodes(ctx context.Context, expiresAt int64) (
 			&i.ClientID,
 			&i.ExpiresAt,
 			&i.Nonce,
+			&i.CodeChallenge,
+			&i.CodeChallengeMethod,
 		); err != nil {
 			return nil, err
 		}
@@ -286,7 +296,7 @@ func (q *Queries) DeleteOidcUserInfo(ctx context.Context, sub string) error {
 const getOidcCode = `-- name: GetOidcCode :one
 DELETE FROM "oidc_codes"
 WHERE "code_hash" = ?
-RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce
+RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce, code_challenge, code_challenge_method
 `
 
 func (q *Queries) GetOidcCode(ctx context.Context, codeHash string) (OidcCode, error) {
@@ -300,6 +310,8 @@ func (q *Queries) GetOidcCode(ctx context.Context, codeHash string) (OidcCode, e
 		&i.ClientID,
 		&i.ExpiresAt,
 		&i.Nonce,
+		&i.CodeChallenge,
+		&i.CodeChallengeMethod,
 	)
 	return i, err
 }
@@ -307,7 +319,7 @@ func (q *Queries) GetOidcCode(ctx context.Context, codeHash string) (OidcCode, e
 const getOidcCodeBySub = `-- name: GetOidcCodeBySub :one
 DELETE FROM "oidc_codes"
 WHERE "sub" = ?
-RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce
+RETURNING sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce, code_challenge, code_challenge_method
 `
 
 func (q *Queries) GetOidcCodeBySub(ctx context.Context, sub string) (OidcCode, error) {
@@ -321,12 +333,14 @@ func (q *Queries) GetOidcCodeBySub(ctx context.Context, sub string) (OidcCode, e
 		&i.ClientID,
 		&i.ExpiresAt,
 		&i.Nonce,
+		&i.CodeChallenge,
+		&i.CodeChallengeMethod,
 	)
 	return i, err
 }
 
 const getOidcCodeBySubUnsafe = `-- name: GetOidcCodeBySubUnsafe :one
-SELECT sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce FROM "oidc_codes"
+SELECT sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce, code_challenge, code_challenge_method FROM "oidc_codes"
 WHERE "sub" = ?
 `
 
@@ -341,12 +355,14 @@ func (q *Queries) GetOidcCodeBySubUnsafe(ctx context.Context, sub string) (OidcC
 		&i.ClientID,
 		&i.ExpiresAt,
 		&i.Nonce,
+		&i.CodeChallenge,
+		&i.CodeChallengeMethod,
 	)
 	return i, err
 }
 
 const getOidcCodeUnsafe = `-- name: GetOidcCodeUnsafe :one
-SELECT sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce FROM "oidc_codes"
+SELECT sub, code_hash, scope, redirect_uri, client_id, expires_at, nonce, code_challenge, code_challenge_method FROM "oidc_codes"
 WHERE "code_hash" = ?
 `
 
@@ -361,6 +377,8 @@ func (q *Queries) GetOidcCodeUnsafe(ctx context.Context, codeHash string) (OidcC
 		&i.ClientID,
 		&i.ExpiresAt,
 		&i.Nonce,
+		&i.CodeChallenge,
+		&i.CodeChallengeMethod,
 	)
 	return i, err
 }

internal/service/oidc_service.go

@@ -81,6 +81,8 @@ type AuthorizeRequest struct {
 	RedirectURI         string `json:"redirect_uri" binding:"required"`
 	State               string `json:"state"`
 	Nonce               string `json:"nonce"`
+	CodeChallenge       string `json:"code_challenge"`
+	CodeChallengeMethod string `json:"code_challenge_method"`
 }
 
 type OIDCServiceConfig struct {
@@ -293,6 +295,13 @@ func (service *OIDCService) ValidateAuthorizeParams(req AuthorizeRequest) error
 		return errors.New("invalid_request_uri")
 	}
 
+	// PKCE code challenge method if set
+	if req.CodeChallenge != "" && req.CodeChallengeMethod != "" {
+		if req.CodeChallengeMethod != "S256" || req.CodeChallenge == "plain" {
+			return errors.New("invalid_request")
+		}
+	}
+
 	return nil
 }
 
@@ -306,8 +315,7 @@ func (service *OIDCService) StoreCode(c *gin.Context, sub string, code string, r
 	// Fixed 10 minutes
 	expiresAt := time.Now().Add(time.Minute * time.Duration(10)).Unix()
 
-	// Insert the code into the database
+	entry := repository.CreateOidcCodeParams{
-	_, err := service.queries.CreateOidcCode(c, repository.CreateOidcCodeParams{
 		Sub:      sub,
 		CodeHash: service.Hash(code),
 		// Here it's safe to split and trust the output since, we validated the scopes before
@@ -316,7 +324,21 @@ func (service *OIDCService) StoreCode(c *gin.Context, sub string, code string, r
 		ClientID:    req.ClientID,
 		ExpiresAt:   expiresAt,
 		Nonce:       req.Nonce,
-	})
+	}
+
+	if req.CodeChallenge != "" {
+		if req.CodeChallengeMethod == "S256" {
+			entry.CodeChallenge = req.CodeChallenge
+			entry.CodeChallengeMethod = "S256"
+		} else {
+			entry.CodeChallenge = service.hashAndEncodePKCE(req.CodeChallenge)
+			entry.CodeChallengeMethod = "plain"
+			tlog.App.Warn().Msg("Received plain PKCE code challenge, it's recommended to use S256 for better security")
+		}
+	}
+
+	// Insert the code into the database
+	_, err := service.queries.CreateOidcCode(c, entry)
 
 	return err
 }
@@ -728,3 +750,20 @@ func (service *OIDCService) GetJWK() ([]byte, error) {
 
 	return jwk.Public().MarshalJSON()
 }
+
+func (service *OIDCService) ValidatePKCE(codeChallenge string, codeChallengeMethod string, codeVerifier string) bool {
+	if codeChallenge == "" {
+		return true
+	}
+	if codeChallengeMethod == "plain" {
+		// Code challenge is hashed and encoded in the database for security reasons
+		return codeChallenge == service.hashAndEncodePKCE(codeVerifier)
+	}
+	return codeChallenge == codeVerifier
+}
+
+func (service *OIDCService) hashAndEncodePKCE(codeVerifier string) string {
+	hasher := sha256.New()
+	hasher.Write([]byte(codeVerifier))
+	return base64.URLEncoding.EncodeToString(hasher.Sum(nil))
+}

sql/oidc_queries.sql

@@ -6,9 +6,11 @@ INSERT INTO "oidc_codes" (
     "redirect_uri",
     "client_id",
     "expires_at",
-    "nonce"
+    "nonce",
+    "code_challenge",
+    "code_challenge_method"
 ) VALUES (
-    ?, ?, ?, ?, ?, ?, ?
+    ?, ?, ?, ?, ?, ?, ?, ?, ?
 )
 RETURNING *;
 

sql/oidc_schemas.sql

@@ -5,7 +5,9 @@ CREATE TABLE IF NOT EXISTS "oidc_codes" (
     "redirect_uri" TEXT NOT NULL,
     "client_id" TEXT NOT NULL,
     "expires_at" INTEGER NOT NULL,
-    "nonce" TEXT DEFAULT ""
+    "nonce" TEXT DEFAULT "",
+    "code_challenge" TEXT DEFAULT "",
+    "code_challenge_method" TEXT DEFAULT ""
 );
 
 CREATE TABLE IF NOT EXISTS "oidc_tokens" (

sqlc.yml

@@ -26,3 +26,7 @@ sql:
             go_type: "string"
           - column: "oidc_tokens.nonce"
             go_type: "string"
+          - column: "oidc_codes.code_challenge"
+            go_type: "string"
+          - column: "oidc_codes.code_challenge_method"
+            go_type: "string"