fix: critical security bug in manual mode project selection

cli/pkg/github/github.go

@@ -3,6 +3,10 @@ package github
 import (
 	"errors"
 	"fmt"
+	"log/slog"
+	"os"
+	"strings"
+
 	"github.com/diggerhq/digger/cli/pkg/digger"
 	"github.com/diggerhq/digger/cli/pkg/drift"
 	github_models "github.com/diggerhq/digger/cli/pkg/github/models"
@@ -21,9 +25,6 @@ import (
 	"github.com/google/go-github/v61/github"
 	"github.com/samber/lo"
 	"gopkg.in/yaml.v3"
-	"log/slog"
-	"os"
-	"strings"
 )
 
 func initLogger() {
@@ -145,13 +146,25 @@ func GitHubCI(lock core_locking.Lock, policyCheckerProvider core_policy.PolicyCh
 			usage.ReportErrorAndExit(githubActor, "provide 'project' to run in 'manual' mode", 2)
 		}
 
-		var projectConfig digger_config.Project
-		for _, projectConfig = range diggerConfig.Projects {
-			if projectConfig.Name == project {
-				break
+		projectConfig, projectFound := findProjectInConfig(diggerConfig.Projects, project)
+
+		if !projectFound {
+			// Log available projects to help with debugging
+			var availableProjects []string
+			for _, p := range diggerConfig.Projects {
+				availableProjects = append(availableProjects, p.Name)
 			}
+			slog.Error("Project not found in digger configuration",
+				"requestedProject", project,
+				"availableProjects", availableProjects)
+			usage.ReportErrorAndExit(githubActor, fmt.Sprintf("Project '%s' not found in digger configuration. Available projects: %v", project, availableProjects), 1)
+		}
+
+		slog.Info("Found project configuration", "projectName", projectConfig.Name, "projectDir", projectConfig.Dir)
+		workflow, ok := diggerConfig.Workflows[projectConfig.Workflow]
+		if !ok {
+			usage.ReportErrorAndExit(githubActor, fmt.Sprintf("Workflow '%s' not found for project '%s'", projectConfig.Workflow, projectConfig.Name), 1)
 		}
-		workflow := diggerConfig.Workflows[projectConfig.Workflow]
 
 		stateEnvVars, commandEnvVars := digger_config.CollectTerraformEnvConfig(workflow.EnvVars, true)
 
@@ -350,6 +363,16 @@ func GitHubCI(lock core_locking.Lock, policyCheckerProvider core_policy.PolicyCh
 	usage.ReportErrorAndExit(githubActor, "Digger finished successfully", 0)
 }
 
+// Helper function to search for a project in the configuration
+func findProjectInConfig(projects []digger_config.Project, projectName string) (digger_config.Project, bool) {
+	for _, config := range projects {
+		if config.Name == projectName {
+			return config, true
+		}
+	}
+	return digger_config.Project{}, false
+}
+
 func logCommands(projectCommands []scheduler.Job) {
 	logMessage := fmt.Sprintf("Following commands are going to be executed:\n")
 	for _, pc := range projectCommands {

cli/pkg/github/github_manual_mode_test.go

@@ -0,0 +1,202 @@
+package github
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/diggerhq/digger/libs/digger_config"
+	"github.com/stretchr/testify/assert"
+)
+
+// Helper function to get available project names
+func getAvailableProjectNames(projects []digger_config.Project) []string {
+	var availableProjects []string
+	for _, p := range projects {
+		availableProjects = append(availableProjects, p.Name)
+	}
+	return availableProjects
+}
+
+func TestManualModeProjectValidation(t *testing.T) {
+	// Create a test digger config with some projects
+	diggerConfig := &digger_config.DiggerConfig{
+		Projects: []digger_config.Project{
+			{
+				Name: "project-a",
+				Dir:  "./project-a",
+			},
+			{
+				Name: "project-b",
+				Dir:  "./project-b",
+			},
+			{
+				Name: "project-c",
+				Dir:  "./project-c",
+			},
+		},
+	}
+
+	tests := []struct {
+		name             string
+		requestedProject string
+		shouldFind       bool
+		expectedProject  string
+	}{
+		{
+			name:             "Valid project should be found",
+			requestedProject: "project-b",
+			shouldFind:       true,
+			expectedProject:  "project-b",
+		},
+		{
+			name:             "Non-existent project should not be found",
+			requestedProject: "non-existent-project",
+			shouldFind:       false,
+			expectedProject:  "",
+		},
+		{
+			name:             "Empty project name should not be found",
+			requestedProject: "",
+			shouldFind:       false,
+			expectedProject:  "",
+		},
+		{
+			name:             "Case sensitive project name should not be found",
+			requestedProject: "Project-A",
+			shouldFind:       false,
+			expectedProject:  "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Use helper function for project search
+			projectConfig, projectFound := findProjectInConfig(diggerConfig.Projects, tt.requestedProject)
+
+			if tt.shouldFind {
+				assert.True(t, projectFound, "Expected to find project %s", tt.requestedProject)
+				assert.Equal(t, tt.expectedProject, projectConfig.Name, "Expected project name to match")
+				assert.Equal(t, "./"+tt.expectedProject, projectConfig.Dir, "Expected project directory to match")
+			} else {
+				assert.False(t, projectFound, "Expected NOT to find project %s", tt.requestedProject)
+				// In the old buggy code, projectConfig would contain the last project from the loop
+				// With our fix, projectFound will be false and we should exit with an error
+			}
+		})
+	}
+}
+
+func TestManualModeProjectValidationWithOldBuggyLogic(t *testing.T) {
+	// This test demonstrates the old buggy behavior
+	diggerConfig := &digger_config.DiggerConfig{
+		Projects: []digger_config.Project{
+			{
+				Name: "project-a",
+				Dir:  "./project-a",
+			},
+			{
+				Name: "project-b",
+				Dir:  "./project-b",
+			},
+			{
+				Name: "dangerous-project",
+				Dir:  "./dangerous-project",
+			},
+		},
+	}
+
+	// Simulate the OLD buggy logic
+	requestedProject := "non-existent-project"
+	var projectConfig digger_config.Project
+
+	// This is the OLD BUGGY CODE that would cause the issue
+	for _, projectConfig = range diggerConfig.Projects {
+		if projectConfig.Name == requestedProject {
+			break
+		}
+	}
+
+	// In the old code, projectConfig would now contain "dangerous-project"
+	// (the last project in the loop) even though we requested "non-existent-project"
+	assert.Equal(t, "dangerous-project", projectConfig.Name,
+		"This demonstrates the old bug: projectConfig contains the last project from the loop")
+	assert.NotEqual(t, requestedProject, projectConfig.Name,
+		"This shows the dangerous behavior: we're using a different project than requested")
+}
+
+func TestAvailableProjectsLogging(t *testing.T) {
+	// Test that we properly log available projects when a project is not found
+	diggerConfig := &digger_config.DiggerConfig{
+		Projects: []digger_config.Project{
+			{Name: "web-app"},
+			{Name: "api-service"},
+			{Name: "database"},
+		},
+	}
+
+	requestedProject := "missing-project"
+
+	// Use helper functions
+	_, projectFound := findProjectInConfig(diggerConfig.Projects, requestedProject)
+	availableProjects := getAvailableProjectNames(diggerConfig.Projects)
+
+	assert.False(t, projectFound)
+	assert.Equal(t, []string{"web-app", "api-service", "database"}, availableProjects)
+}
+
+// This test would actually call usage.ReportErrorAndExit in a real scenario
+// but we can't easily test that without mocking the exit behavior
+func TestProjectNotFoundErrorMessage(t *testing.T) {
+	diggerConfig := &digger_config.DiggerConfig{
+		Projects: []digger_config.Project{
+			{Name: "project-1"},
+			{Name: "project-2"},
+		},
+	}
+
+	requestedProject := "invalid-project"
+
+	// Use helper functions
+	_, projectFound := findProjectInConfig(diggerConfig.Projects, requestedProject)
+	availableProjects := getAvailableProjectNames(diggerConfig.Projects)
+
+	assert.False(t, projectFound)
+
+	if !projectFound {
+		// This would normally call usage.ReportErrorAndExit
+		expectedErrorMsg := "Project 'invalid-project' not found in digger configuration. Available projects: [project-1 project-2]"
+
+		// Verify the error message format using fmt.Sprintf for better maintainability
+		actualErrorMsg := fmt.Sprintf("Project '%s' not found in digger configuration. Available projects: %v", requestedProject, availableProjects)
+		assert.Equal(t, expectedErrorMsg, actualErrorMsg)
+		assert.Equal(t, []string{"project-1", "project-2"}, availableProjects)
+	}
+}
+
+func TestWorkflowValidation(t *testing.T) {
+	// Test that we properly validate workflow existence
+	diggerConfig := &digger_config.DiggerConfig{
+		Projects: []digger_config.Project{
+			{
+				Name:     "test-project",
+				Workflow: "custom-workflow",
+			},
+		},
+		Workflows: map[string]digger_config.Workflow{
+			"default": {
+				Plan:  &digger_config.Stage{Steps: []digger_config.Step{{Action: "init"}}},
+				Apply: &digger_config.Stage{Steps: []digger_config.Step{{Action: "apply"}}},
+			},
+		},
+	}
+
+	// Test valid workflow
+	project := diggerConfig.Projects[0]
+	_, workflowExists := diggerConfig.Workflows[project.Workflow]
+	assert.False(t, workflowExists, "custom-workflow should not exist")
+
+	// Test workflow that exists
+	project.Workflow = "default"
+	_, workflowExists = diggerConfig.Workflows[project.Workflow]
+	assert.True(t, workflowExists, "default workflow should exist")
+}