ci: Updates to Workflows (#5)

This PR makes improvements to the GitHub Workflow files for the
repository. The PR:

- Adds a Snyk workflow, based on feedback from the security review.

Please ignore check failures on the existing `build` and `semgrep`
workflows, as this PR modifies these. Merging this PR will resolve those
for future checks.

---------

Co-authored-by: Frederik Prijck <[email protected]>

.github/workflows/build.yml

@@ -1,31 +1,30 @@
-name: Build
+name: Build and Test
 
 on:
+  workflow_dispatch:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
-  workflow_dispatch:
-
 jobs:
   build:
+    name: Build Package
     runs-on: windows-2022
 
     env:
       Solution_Path: Sample\Auth0MauiApp.sln
-    
+
     steps:
       - uses: actions/checkout@v4
-          
+
       - name: Install .NET Core
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '7.0.402'
+          dotnet-version: "7.0.402"
 
       - name: Install .NET Workloads
         run: dotnet workload install maui
 
       - name: Build
         run: dotnet build $env:Solution_Path --configuration Release
-

.github/workflows/semgrep.yml

@@ -2,7 +2,6 @@ name: Semgrep
 
 on:
   merge_group:
-  workflow_dispatch:
   pull_request_target:
     types:
       - opened
@@ -29,7 +28,7 @@ jobs:
       - run: true
 
   check:
-    needs: authorize
+    needs: authorize # Require approval before running on forked pull requests
 
     name: Check for Vulnerabilities
     runs-on: ubuntu-latest
@@ -43,7 +42,7 @@ jobs:
 
       - uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.pull_request.head.sha || github.ref }}
+          ref: ${{ github.event.pull_request.merge_commit_sha || github.ref }}
 
       - run: semgrep ci
         env:

.github/workflows/snyk.yml

@@ -0,0 +1,65 @@
+name: Snyk
+
+on:
+  merge_group:
+  pull_request_target:
+    types:
+      - opened
+      - synchronize
+  push:
+    branches:
+      - main
+  schedule:
+    - cron: "30 0 1,15 * *"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  authorize:
+    name: Authorize
+    environment: ${{ github.actor != 'dependabot[bot]' && github.event_name == 'pull_request_target' && github.event.pull_request.head.repo.full_name != github.repository && 'external' || 'internal' }}
+    runs-on: ubuntu-latest
+    steps:
+      - run: true
+
+  check:
+    needs: authorize # Require approval before running on forked pull requests
+
+    name: Check for Vulnerabilities
+    runs-on: windows-2022
+
+    steps:
+      - if: github.actor == 'dependabot[bot]' || github.event_name == 'merge_group'
+        run: exit 0 # Skip unnecessary test runs for dependabot and merge queues. Artifically flag as successful, as this is a required check for branch protection.
+
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.merge_commit_sha || github.ref }}
+
+      - name: Install .NET Core
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: "7.0.402"
+
+      - working-directory: Sample\Auth0MauiApp
+        run: dotnet restore
+
+      # Install Snyk
+      - run: npm install snyk -g
+
+      # Check that project is registered with Snyk when triggered from main branch
+      - if: github.ref == 'refs/heads/main'
+        run: snyk monitor --file=Sample\Auth0MauiApp.sln
+        env:
+          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+        continue-on-error: true
+
+      # Report vulnerabilities
+      - run: snyk test --file=Sample\Auth0MauiApp.sln
+        env:
+          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}