package swift import ( "os" "strings" "github.com/restic/restic/internal/errors" "github.com/restic/restic/internal/options" ) // Config contains basic configuration needed to specify swift location for a swift server type Config struct { UserName string Domain string APIKey string AuthURL string Region string Tenant string TenantID string TenantDomain string TrustID string StorageURL string AuthToken string // auth v3 only ApplicationCredentialID string ApplicationCredentialName string ApplicationCredentialSecret string Container string Prefix string DefaultContainerPolicy string Connections uint `option:"connections" help:"set a limit for the number of concurrent connections (default: 5)"` } func init() { options.Register("swift", Config{}) } // NewConfig returns a new config with the default values filled in. func NewConfig() Config { return Config{ Connections: 5, } } // ParseConfig parses the string s and extract swift's container name and prefix. func ParseConfig(s string) (interface{}, error) { data := strings.SplitN(s, ":", 3) if len(data) != 3 { return nil, errors.New("invalid URL, expected: swift:container-name:/[prefix]") } scheme, container, prefix := data[0], data[1], data[2] if scheme != "swift" { return nil, errors.Errorf("unexpected prefix: %s", data[0]) } if len(prefix) == 0 { return nil, errors.Errorf("prefix is empty") } if prefix[0] != '/' { return nil, errors.Errorf("prefix does not start with slash (/)") } prefix = prefix[1:] cfg := NewConfig() cfg.Container = container cfg.Prefix = prefix return cfg, nil } // ApplyEnvironment saves values from the environment to the config. func ApplyEnvironment(prefix string, cfg interface{}) error { c := cfg.(*Config) for _, val := range []struct { s *string env string }{ // v2/v3 specific {&c.UserName, prefix + "OS_USERNAME"}, {&c.APIKey, prefix + "OS_PASSWORD"}, {&c.Region, prefix + "OS_REGION_NAME"}, {&c.AuthURL, prefix + "OS_AUTH_URL"}, // v3 specific {&c.Domain, prefix + "OS_USER_DOMAIN_NAME"}, {&c.Tenant, prefix + "OS_PROJECT_NAME"}, {&c.TenantDomain, prefix + "OS_PROJECT_DOMAIN_NAME"}, // v2 specific {&c.TenantID, prefix + "OS_TENANT_ID"}, {&c.Tenant, prefix + "OS_TENANT_NAME"}, // v1 specific {&c.AuthURL, prefix + "ST_AUTH"}, {&c.UserName, prefix + "ST_USER"}, {&c.APIKey, prefix + "ST_KEY"}, // Application Credential auth {&c.ApplicationCredentialID, prefix + "OS_APPLICATION_CREDENTIAL_ID"}, {&c.ApplicationCredentialName, prefix + "OS_APPLICATION_CREDENTIAL_NAME"}, {&c.ApplicationCredentialSecret, prefix + "OS_APPLICATION_CREDENTIAL_SECRET"}, // Manual authentication {&c.StorageURL, prefix + "OS_STORAGE_URL"}, {&c.AuthToken, prefix + "OS_AUTH_TOKEN"}, {&c.DefaultContainerPolicy, prefix + "SWIFT_DEFAULT_CONTAINER_POLICY"}, } { if *val.s == "" { *val.s = os.Getenv(val.env) } } return nil }