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moby--moby/opts/opts.go

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package opts
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import (
"fmt"
"net"
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"regexp"
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"strings"
)
var (
alphaRegexp = regexp.MustCompile(`[a-zA-Z]`)
domainRegexp = regexp.MustCompile(`^(:?(:?[a-zA-Z0-9]|(:?[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]))(:?\.(:?[a-zA-Z0-9]|(:?[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])))*)\.?\s*$`)
)
// ListOpts holds a list of values and a validation function.
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type ListOpts struct {
values *[]string
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validator ValidatorFctType
}
// NewListOpts creates a new ListOpts with the specified validator.
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func NewListOpts(validator ValidatorFctType) ListOpts {
var values []string
return *NewListOptsRef(&values, validator)
}
// NewListOptsRef creates a new ListOpts with the specified values and validator.
func NewListOptsRef(values *[]string, validator ValidatorFctType) *ListOpts {
return &ListOpts{
values: values,
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validator: validator,
}
}
func (opts *ListOpts) String() string {
return fmt.Sprintf("%v", []string((*opts.values)))
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}
// Set validates if needed the input value and add it to the
// internal slice.
func (opts *ListOpts) Set(value string) error {
if opts.validator != nil {
v, err := opts.validator(value)
if err != nil {
return err
}
value = v
}
(*opts.values) = append((*opts.values), value)
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return nil
}
// Delete removes the specified element from the slice.
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func (opts *ListOpts) Delete(key string) {
for i, k := range *opts.values {
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if k == key {
(*opts.values) = append((*opts.values)[:i], (*opts.values)[i+1:]...)
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return
}
}
}
// GetMap returns the content of values in a map in order to avoid
// duplicates.
func (opts *ListOpts) GetMap() map[string]struct{} {
ret := make(map[string]struct{})
for _, k := range *opts.values {
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ret[k] = struct{}{}
}
return ret
}
// GetAll returns the values of slice.
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func (opts *ListOpts) GetAll() []string {
return (*opts.values)
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}
// GetAllOrEmpty returns the values of the slice
// or an empty slice when there are no values.
func (opts *ListOpts) GetAllOrEmpty() []string {
v := *opts.values
if v == nil {
return make([]string, 0)
}
return v
}
// Get checks the existence of the specified key.
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func (opts *ListOpts) Get(key string) bool {
for _, k := range *opts.values {
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if k == key {
return true
}
}
return false
}
// Len returns the amount of element in the slice.
func (opts *ListOpts) Len() int {
return len((*opts.values))
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}
// NamedOption is an interface that list and map options
// with names implement.
type NamedOption interface {
Name() string
}
// NamedListOpts is a ListOpts with a configuration name.
// This struct is useful to keep reference to the assigned
// field name in the internal configuration struct.
type NamedListOpts struct {
name string
ListOpts
}
var _ NamedOption = &NamedListOpts{}
// NewNamedListOptsRef creates a reference to a new NamedListOpts struct.
func NewNamedListOptsRef(name string, values *[]string, validator ValidatorFctType) *NamedListOpts {
return &NamedListOpts{
name: name,
ListOpts: *NewListOptsRef(values, validator),
}
}
// Name returns the name of the NamedListOpts in the configuration.
func (o *NamedListOpts) Name() string {
return o.name
}
//MapOpts holds a map of values and a validation function.
type MapOpts struct {
values map[string]string
validator ValidatorFctType
}
// Set validates if needed the input value and add it to the
// internal map, by splitting on '='.
func (opts *MapOpts) Set(value string) error {
if opts.validator != nil {
v, err := opts.validator(value)
if err != nil {
return err
}
value = v
}
vals := strings.SplitN(value, "=", 2)
if len(vals) == 1 {
(opts.values)[vals[0]] = ""
} else {
(opts.values)[vals[0]] = vals[1]
}
return nil
}
// GetAll returns the values of MapOpts as a map.
func (opts *MapOpts) GetAll() map[string]string {
return opts.values
}
func (opts *MapOpts) String() string {
return fmt.Sprintf("%v", map[string]string((opts.values)))
}
// NewMapOpts creates a new MapOpts with the specified map of values and a validator.
func NewMapOpts(values map[string]string, validator ValidatorFctType) *MapOpts {
if values == nil {
values = make(map[string]string)
}
return &MapOpts{
values: values,
validator: validator,
}
}
// NamedMapOpts is a MapOpts struct with a configuration name.
// This struct is useful to keep reference to the assigned
// field name in the internal configuration struct.
type NamedMapOpts struct {
name string
MapOpts
}
var _ NamedOption = &NamedMapOpts{}
// NewNamedMapOpts creates a reference to a new NamedMapOpts struct.
func NewNamedMapOpts(name string, values map[string]string, validator ValidatorFctType) *NamedMapOpts {
return &NamedMapOpts{
name: name,
MapOpts: *NewMapOpts(values, validator),
}
}
// Name returns the name of the NamedMapOpts in the configuration.
func (o *NamedMapOpts) Name() string {
return o.name
}
// ValidatorFctType defines a validator function that returns a validated string and/or an error.
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type ValidatorFctType func(val string) (string, error)
// ValidatorFctListType defines a validator function that returns a validated list of string and/or an error
Deprecating ResolveRepositoryName Passing RepositoryInfo to ResolveAuthConfig, pullRepository, and pushRepository Moving --registry-mirror configuration to registry config Created resolve_repository job Repo names with 'index.docker.io' or 'docker.io' are now synonymous with omitting an index name. Adding test for RepositoryInfo Adding tests for opts.StringSetOpts and registry.ValidateMirror Fixing search term use of repoInfo Adding integration tests for registry mirror configuration Normalizing LookupImage image name to match LocalName parsing rules Normalizing repository LocalName to avoid multiple references to an official image Removing errorOut use in tests Removing TODO comment gofmt changes golint comments cleanup. renaming RegistryOptions => registry.Options, and RegistryServiceConfig => registry.ServiceConfig Splitting out builtins.Registry and registry.NewService calls Stray whitespace cleanup Moving integration tests for Mirrors and InsecureRegistries into TestNewIndexInfo unit test Factoring out ValidateRepositoryName from NewRepositoryInfo Removing unused IndexServerURL Allowing json marshaling of ServiceConfig. Exposing ServiceConfig in /info Switching to CamelCase for json marshaling PR cleanup; removing 'Is' prefix from boolean members. Removing unneeded json tags. Removing non-cleanup related fix for 'localhost:[port]' in splitReposName Merge fixes for gh9735 Fixing integration test Reapplying #9754 Adding comment on config.IndexConfigs use from isSecureIndex Remove unused error return value from isSecureIndex Signed-off-by: Don Kjer <don.kjer@gmail.com> Adding back comment in isSecureIndex Signed-off-by: Don Kjer <don.kjer@gmail.com>
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type ValidatorFctListType func(val string) ([]string, error)
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// ValidateIPAddress validates an Ip address.
func ValidateIPAddress(val string) (string, error) {
var ip = net.ParseIP(strings.TrimSpace(val))
if ip != nil {
return ip.String(), nil
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}
return "", fmt.Errorf("%s is not an ip address", val)
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}
// ValidateDNSSearch validates domain for resolvconf search configuration.
// A zero length domain is represented by a dot (.).
func ValidateDNSSearch(val string) (string, error) {
if val = strings.Trim(val, " "); val == "." {
return val, nil
}
return validateDomain(val)
}
func validateDomain(val string) (string, error) {
if alphaRegexp.FindString(val) == "" {
return "", fmt.Errorf("%s is not a valid domain", val)
}
ns := domainRegexp.FindSubmatch([]byte(val))
if len(ns) > 0 && len(ns[1]) < 255 {
return string(ns[1]), nil
}
return "", fmt.Errorf("%s is not a valid domain", val)
}
// ValidateLabel validates that the specified string is a valid label, and returns it.
// Labels are in the form on key=value.
func ValidateLabel(val string) (string, error) {
if strings.Count(val, "=") < 1 {
return "", fmt.Errorf("bad attribute format: %s", val)
}
return val, nil
}