refactor(stack): stack build process backend only [EE-4342] (#7750)

api/stacks/stackutils/validation.go

@@ -0,0 +1,98 @@
+package stackutils
+
+import (
+	"time"
+
+	"github.com/asaskevich/govalidator"
+	"github.com/docker/cli/cli/compose/loader"
+	"github.com/docker/cli/cli/compose/types"
+	"github.com/pkg/errors"
+	portainer "github.com/portainer/portainer/api"
+)
+
+func IsValidStackFile(stackFileContent []byte, securitySettings *portainer.EndpointSecuritySettings) error {
+	composeConfigYAML, err := loader.ParseYAML(stackFileContent)
+	if err != nil {
+		return err
+	}
+
+	composeConfigFile := types.ConfigFile{
+		Config: composeConfigYAML,
+	}
+
+	composeConfigDetails := types.ConfigDetails{
+		ConfigFiles: []types.ConfigFile{composeConfigFile},
+		Environment: map[string]string{},
+	}
+
+	composeConfig, err := loader.Load(composeConfigDetails, func(options *loader.Options) {
+		options.SkipValidation = true
+		options.SkipInterpolation = true
+	})
+	if err != nil {
+		return err
+	}
+
+	for key := range composeConfig.Services {
+		service := composeConfig.Services[key]
+		if !securitySettings.AllowBindMountsForRegularUsers {
+			for _, volume := range service.Volumes {
+				if volume.Type == "bind" {
+					return errors.New("bind-mount disabled for non administrator users")
+				}
+			}
+		}
+
+		if !securitySettings.AllowPrivilegedModeForRegularUsers && service.Privileged == true {
+			return errors.New("privileged mode disabled for non administrator users")
+		}
+
+		if !securitySettings.AllowHostNamespaceForRegularUsers && service.Pid == "host" {
+			return errors.New("pid host disabled for non administrator users")
+		}
+
+		if !securitySettings.AllowDeviceMappingForRegularUsers && service.Devices != nil && len(service.Devices) > 0 {
+			return errors.New("device mapping disabled for non administrator users")
+		}
+
+		if !securitySettings.AllowSysctlSettingForRegularUsers && service.Sysctls != nil && len(service.Sysctls) > 0 {
+			return errors.New("sysctl setting disabled for non administrator users")
+		}
+
+		if !securitySettings.AllowContainerCapabilitiesForRegularUsers && (len(service.CapAdd) > 0 || len(service.CapDrop) > 0) {
+			return errors.New("container capabilities disabled for non administrator users")
+		}
+	}
+
+	return nil
+}
+
+func ValidateStackAutoUpdate(autoUpdate *portainer.StackAutoUpdate) error {
+	if autoUpdate == nil {
+		return nil
+	}
+	if autoUpdate.Webhook != "" && !govalidator.IsUUID(autoUpdate.Webhook) {
+		return errors.New("invalid Webhook format")
+	}
+	if autoUpdate.Interval != "" {
+		if _, err := time.ParseDuration(autoUpdate.Interval); err != nil {
+			return errors.New("invalid Interval format")
+		}
+	}
+	return nil
+}
+
+func ValidateStackFiles(stack *portainer.Stack, securitySettings *portainer.EndpointSecuritySettings, fileService portainer.FileService) error {
+	for _, file := range GetStackFilePaths(stack, false) {
+		stackContent, err := fileService.GetFileContent(stack.ProjectPath, file)
+		if err != nil {
+			return errors.Wrap(err, "failed to get stack file content")
+		}
+
+		err = IsValidStackFile(stackContent, securitySettings)
+		if err != nil {
+			return errors.Wrap(err, "stack config file is invalid")
+		}
+	}
+	return nil
+}