Add support for SAST (CodeQL) workflow

remediation/workflow/addworkflow.go

@@ -0,0 +1,50 @@
+package workflow
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"sort"
+	"strings"
+)
+
+const CodeQLWorkflowFileName = "codeql.yml"
+
+type WorkflowParameters struct {
+	LanguagesToAdd []string
+	DefaultBranch  string
+}
+
+func getTemplate(file string) (string, error) {
+	templatePath := os.Getenv("WORKFLOW_TEMPLATES")
+
+	if templatePath == "" {
+		templatePath = "../../workflow-templates"
+	}
+
+	template, err := ioutil.ReadFile(path.Join(templatePath, file))
+	if err != nil {
+		return "", err
+	}
+
+	return string(template), nil
+}
+
+func AddWorkflow(name string, workflowParameters WorkflowParameters) (string, error) {
+	if name == "codeql" {
+		codeqlWorkflow, err := getTemplate(CodeQLWorkflowFileName)
+		if err != nil {
+			return "", err
+		}
+
+		sort.Strings(workflowParameters.LanguagesToAdd)
+		codeqlWorkflow = strings.ReplaceAll(codeqlWorkflow, "$default-branch", fmt.Sprintf(`"%s"`, workflowParameters.DefaultBranch))
+		codeqlWorkflow = strings.ReplaceAll(codeqlWorkflow, "$detected-codeql-languages", strings.Join(workflowParameters.LanguagesToAdd, ", "))
+		codeqlWorkflow = strings.ReplaceAll(codeqlWorkflow, "$cron-weekly", fmt.Sprintf(`"%s"`, "0 0 * * 1")) // Note: Runs every monday at 12:00 AM
+
+		return codeqlWorkflow, nil
+	} else {
+		return "", fmt.Errorf("match for %s Workflow name not found", name)
+	}
+}

remediation/workflow/addworkflow_test.go

@@ -0,0 +1,54 @@
+package workflow
+
+import (
+	"io/ioutil"
+	"reflect"
+	"testing"
+)
+
+func Test_AddWorkflow(t *testing.T) {
+	tests := []struct {
+		workflowName       string
+		workflowParameters WorkflowParameters
+		expectedError      bool
+		expectedOutputFile string
+	}{
+		{
+			workflowName: "codeql",
+			workflowParameters: WorkflowParameters{
+				LanguagesToAdd: []string{"cpp", "go", "java"},
+				DefaultBranch:  "main",
+			},
+			expectedError:      false,
+			expectedOutputFile: "../../testfiles/expected-codeql.yml",
+		},
+		{
+			workflowName: "xyz",
+			workflowParameters: WorkflowParameters{
+				LanguagesToAdd: []string{"cpp"},
+				DefaultBranch:  "main",
+			},
+			expectedError:      true,
+			expectedOutputFile: "",
+		},
+	}
+
+	for _, test := range tests {
+		output, err := AddWorkflow(test.workflowName, test.workflowParameters)
+		if err != nil {
+			if !test.expectedError {
+				t.Errorf("Error adding Workflow: %v", err)
+			}
+			continue
+		}
+		expectedOutput, err := ioutil.ReadFile(test.expectedOutputFile)
+		if err != nil {
+			t.Errorf("Error in reading file: %v", err)
+		}
+
+		if !reflect.DeepEqual(output, string(expectedOutput)) {
+			t.Errorf("test failed %s did not match expected output\n%s", test.workflowName, output)
+		}
+	}
+
+}

testfiles/expected-codeql.yml

@@ -0,0 +1,76 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ["main"]
+  schedule:
+    - cron: "0 0 * * 1"
+
+permissions: # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [cpp, go, java]
+        # CodeQL supports [ $supported-codeql-languages ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+
+          # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+          # queries: security-extended,security-and-quality
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v2
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+      #   If the Autobuild fails above, remove it and uncomment the following three lines.
+      #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+      # - run: |
+      #   echo "Run, Build Application using script"
+      #   ./location_of_script_within_repo/buildscript.sh
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2
+        with:
+          category: "/language:${{matrix.language}}"

workflow-templates/codeql.yml

@@ -0,0 +1,76 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [$default-branch]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [$default-branch]
+  schedule:
+    - cron: $cron-weekly
+
+permissions: # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [$detected-codeql-languages]
+        # CodeQL supports [ $supported-codeql-languages ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+
+          # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+          # queries: security-extended,security-and-quality
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v2
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+      #   If the Autobuild fails above, remove it and uncomment the following three lines.
+      #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+      # - run: |
+      #   echo "Run, Build Application using script"
+      #   ./location_of_script_within_repo/buildscript.sh
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2
+        with:
+          category: "/language:${{matrix.language}}"