package linter import ( "fmt" "github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml" ) const ( blockClone uint8 = iota blockPipeline blockServices ) // A Linter lints a pipeline configuration. type Linter struct { trusted bool } // New creates a new Linter with options. func New(opts ...Option) *Linter { linter := new(Linter) for _, opt := range opts { opt(linter) } return linter } // Lint lints the configuration. func (l *Linter) Lint(c *yaml.Config) error { if len(c.Pipeline.Containers) == 0 { return fmt.Errorf("Invalid or missing pipeline section") } if err := l.lint(c.Clone.Containers, blockClone); err != nil { return err } if err := l.lint(c.Pipeline.Containers, blockPipeline); err != nil { return err } return l.lint(c.Services.Containers, blockServices) } func (l *Linter) lint(containers []*yaml.Container, _ uint8) error { for _, container := range containers { if err := l.lintImage(container); err != nil { return err } if !l.trusted { if err := l.lintTrusted(container); err != nil { return err } } if err := l.lintCommands(container); err != nil { return err } } return nil } func (l *Linter) lintImage(c *yaml.Container) error { if len(c.Image) == 0 { return fmt.Errorf("Invalid or missing image") } return nil } func (l *Linter) lintCommands(c *yaml.Container) error { if len(c.Commands) == 0 { return nil } if len(c.Settings) != 0 { var keys []string for key := range c.Settings { keys = append(keys, key) } return fmt.Errorf("Cannot configure both commands and custom attributes %v", keys) } return nil } func (l *Linter) lintTrusted(c *yaml.Container) error { if c.Privileged { return fmt.Errorf("Insufficient privileges to use privileged mode") } if c.ShmSize != 0 { return fmt.Errorf("Insufficient privileges to override shm_size") } if len(c.DNS) != 0 { return fmt.Errorf("Insufficient privileges to use custom dns") } if len(c.DNSSearch) != 0 { return fmt.Errorf("Insufficient privileges to use dns_search") } if len(c.Devices) != 0 { return fmt.Errorf("Insufficient privileges to use devices") } if len(c.ExtraHosts) != 0 { return fmt.Errorf("Insufficient privileges to use extra_hosts") } if len(c.NetworkMode) != 0 { return fmt.Errorf("Insufficient privileges to use network_mode") } if len(c.IpcMode) != 0 { return fmt.Errorf("Insufficient privileges to use ipc_mode") } if len(c.Sysctls) != 0 { return fmt.Errorf("Insufficient privileges to use sysctls") } if c.Networks.Networks != nil && len(c.Networks.Networks) != 0 { return fmt.Errorf("Insufficient privileges to use networks") } if c.Volumes.Volumes != nil && len(c.Volumes.Volumes) != 0 { return fmt.Errorf("Insufficient privileges to use volumes") } if len(c.Tmpfs) != 0 { return fmt.Errorf("Insufficient privileges to use tmpfs") } return nil }