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activitypub/iri.go
2019-11-18 16:39:28 +01:00

127 lines
2.4 KiB
Go

package activitystreams
import (
"net/url"
"strings"
)
const PublicNS = IRI("https://www.w3.org/ns/activitystreams#Public")
type (
// IRI is a Internationalized Resource Identifiers (IRIs) RFC3987
IRI string
IRIs []IRI
)
// String returns the String value of the IRI object
func (i IRI) String() string {
return string(i)
}
// GetLink
func (i IRI) GetLink() IRI {
return i
}
// URL
func (i IRI) URL() (*url.URL, error) {
return url.Parse(i.String())
}
// UnmarshalJSON
func (i *IRI) UnmarshalJSON(s []byte) error {
*i = IRI(strings.Trim(string(s), "\""))
return nil
}
// GetID
func (i IRI) GetID() *ObjectID {
o := ObjectID(i)
return &o
}
// GetType
func (i IRI) GetType() ActivityVocabularyType {
return LinkType
}
// IsLink
func (i IRI) IsLink() bool {
return true
}
// IsObject
func (i IRI) IsObject() bool {
return false
}
// FlattenToIRI checks if Item can be flatten to an IRI and returns it if so
func FlattenToIRI(it Item) Item {
if it != nil && it.IsObject() && len(it.GetLink()) > 0 {
return it.GetLink()
}
return it
}
// Contains verifies if IRIs array contains the received one
func (i IRIs) Contains(r IRI) bool {
if len(i) == 0 {
return false
}
for _, iri := range i {
if strings.ToLower(r.String()) == strings.ToLower(iri.String()) {
return true
}
}
return false
}
// Equals verifies if our receiver IRI is equals with the "with" IRI
// It ignores the protocol
// It tries to use the URL representation if possible and fallback to string comparison if unable to convert
// In URL representation checks hostname in a case insensitive way and the path and
func (i IRI) Equals(with IRI, checkScheme bool) bool {
u, e := i.URL()
uw, ew := with.URL()
if e != nil || ew != nil {
return strings.ToLower(i.String()) == strings.ToLower(with.String())
}
if checkScheme {
if strings.ToLower(u.Scheme) != strings.ToLower(uw.Scheme) {
return false
}
}
if strings.ToLower(u.Host) != strings.ToLower(uw.Host) {
return false
}
if u.Path != uw.Path {
return false
}
uq := u.Query()
uwq := uw.Query()
if len(uq) != len(uwq) {
return false
}
for k, uqv := range uq {
uwqv, ok := uwq[k]
if !ok {
return false
}
if len(uqv) != len(uwqv) {
return false
}
for _, uqvv := range uqv {
eq := false
for _, uwqvv := range uwqv {
if uwqvv == uqvv {
eq = true
continue
}
}
if !eq {
return false
}
}
}
return true
}