forgejo/models/activitypub/actor.go

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package activitypub
import (
"fmt"
"net/url"
"strconv"
"strings"
)
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type Validatable interface { // ToDo: What is the right package for this interface?
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validate_is_not_nil() error // ToDo: We may want an IsValid and a ThrowIfInvalid method, that collects errors and throws them at RepositoryInbox level
validate_is_not_empty() error
Validate() error
}
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type ActorID struct {
schema string
userId string
path string
host string
port string // optional
}
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// ToDo: validate_is_not_empty maybe not as an extra method
func (a ActorID) validate_is_not_empty(str string, field string) error {
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if str == "" {
return fmt.Errorf("field %v was empty", field)
}
return nil
}
func (a ActorID) GetUserId() int {
result, err := strconv.Atoi(a.userId)
if err != nil {
panic(err)
}
return result
}
// Returns the combination of host:port if port exists, host otherwise
func (a ActorID) GetHostAndPort() string {
if a.port != "" {
return strings.Join([]string{a.host, a.port}, ":")
}
return a.host
}
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// TODO: Align validation-api to example from dda-devops-build
func (a ActorID) Validate() error {
if err := a.validate_is_not_empty(a.schema, "schema"); err != nil {
return err
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}
if err := a.validate_is_not_empty(a.host, "host"); err != nil {
return err
}
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if !strings.Contains(a.path, "api/v1/activitypub/user-id") { // This needs to happen in dependence to the star source type.
return fmt.Errorf("the Path to the API was invalid: %v", a.path)
}
return nil
}
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func ParseActorID(actor string) (ActorID, error) {
u, err := url.Parse(actor)
// check if userID IRI is well formed url
if err != nil {
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return ActorID{}, fmt.Errorf("the actor ID was not a valid IRI: %v", err)
}
pathWithUserID := strings.Split(u.Path, "/")
userId := pathWithUserID[len(pathWithUserID)-1]
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return ActorID{ // ToDo: maybe keep original input to validate against (maybe extra method)
schema: u.Scheme, // ToDo: Add source type field
userId: userId,
host: u.Host,
path: u.Path,
port: u.Port(),
}, nil
}