mirror of
https://codeberg.org/forgejo/forgejo.git
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201 lines
5.1 KiB
Go
201 lines
5.1 KiB
Go
// Copyright 2023 The forgejo Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package forgefed
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import (
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"fmt"
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"net/url"
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"strings"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/validation"
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)
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type Validateable interface {
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Validate() []string
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}
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type ActorId struct {
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Validateable
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Id string
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Source string
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Schema string
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Path string
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Host string
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Port string
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UnvalidatedInput string
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}
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type PersonId struct {
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ActorId
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}
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type RepositoryId struct {
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ActorId
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}
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func newActorId(uri, source string) (ActorId, error) {
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validatedUri, _ := url.Parse(uri) // ToDo: Why no err treatment at this place?
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pathWithActorID := strings.Split(validatedUri.Path, "/")
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if containsEmptyString(pathWithActorID) {
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pathWithActorID = removeEmptyStrings(pathWithActorID)
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}
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length := len(pathWithActorID)
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pathWithoutActorID := strings.Join(pathWithActorID[0:length-1], "/")
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id := pathWithActorID[length-1]
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result := ActorId{}
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result.Id = id
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result.Source = source
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result.Schema = validatedUri.Scheme
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result.Host = validatedUri.Hostname()
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result.Path = pathWithoutActorID
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result.Port = validatedUri.Port()
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result.UnvalidatedInput = uri
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if valid, err := result.IsValid(); !valid {
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return ActorId{}, err
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}
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return result, nil
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}
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func NewPersonId(uri string, source string) (PersonId, error) {
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// TODO: remove after test
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//if !validation.IsValidExternalURL(uri) {
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// return PersonId{}, fmt.Errorf("uri %s is not a valid external url", uri)
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//}
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actorId, err := newActorId(uri, source)
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if err != nil {
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return PersonId{}, err
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}
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// validate Person specific path
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personId := PersonId{actorId}
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if valid, outcome := personId.IsValid(); !valid {
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return PersonId{}, outcome
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}
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return personId, nil
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}
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// TODO: tbd how an which parts can be generalized
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func NewRepositoryId(uri string, source string) (RepositoryId, error) {
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if !validation.IsAPIURL(uri) {
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return RepositoryId{}, fmt.Errorf("uri %s is not a valid repo url on this host %s", uri, setting.AppURL+"api")
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}
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actorId, err := newActorId(uri, source)
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if err != nil {
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return RepositoryId{}, err
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}
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// validate Person specific path
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repoId := RepositoryId{actorId}
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if valid, outcome := repoId.IsValid(); !valid {
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return RepositoryId{}, outcome
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}
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return repoId, nil
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}
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func (id ActorId) AsUri() string {
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result := ""
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if id.Port == "" {
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result = fmt.Sprintf("%s://%s/%s/%s", id.Schema, id.Host, id.Path, id.Id)
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} else {
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result = fmt.Sprintf("%s://%s:%s/%s/%s", id.Schema, id.Host, id.Port, id.Path, id.Id)
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}
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return result
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}
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func (id PersonId) AsWebfinger() string {
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result := fmt.Sprintf("@%s@%s", strings.ToLower(id.Id), strings.ToLower(id.Host))
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return result
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}
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func (id PersonId) AsLoginName() string {
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result := fmt.Sprintf("%s%s", strings.ToLower(id.Id), id.HostSuffix())
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return result
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}
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func (id PersonId) HostSuffix() string {
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result := fmt.Sprintf("-%s", strings.ToLower(id.Host))
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return result
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}
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/*
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Validate collects error strings in a slice and returns this
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*/
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func (value ActorId) Validate() []string {
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var result = []string{}
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result = append(result, validation.ValidateNotEmpty(value.Id, "userId")...)
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result = append(result, validation.ValidateNotEmpty(value.Source, "source")...)
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result = append(result, validation.ValidateNotEmpty(value.Schema, "schema")...)
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result = append(result, validation.ValidateNotEmpty(value.Path, "path")...)
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result = append(result, validation.ValidateNotEmpty(value.Host, "host")...)
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result = append(result, validation.ValidateNotEmpty(value.UnvalidatedInput, "unvalidatedInput")...)
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result = append(result, validation.ValidateOneOf(value.Source, []string{"forgejo", "gitea"})...)
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if value.UnvalidatedInput != value.AsUri() {
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result = append(result, fmt.Sprintf("not all input: %q was parsed: %q", value.UnvalidatedInput, value.AsUri()))
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}
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return result
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}
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// TODO: Move valid-parts to valid package
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/*
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IsValid concatenates the error messages with newlines and returns them if there are any
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*/
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func (a ActorId) IsValid() (bool, error) {
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if err := a.Validate(); len(err) > 0 {
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errString := strings.Join(err, "\n")
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return false, fmt.Errorf(errString)
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}
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return true, nil
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}
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func (a PersonId) IsValid() (bool, error) {
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switch a.Source {
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case "forgejo", "gitea":
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if strings.ToLower(a.Path) != "api/v1/activitypub/user-id" && strings.ToLower(a.Path) != "api/activitypub/user-id" {
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err := fmt.Errorf("path: %q has to be an api path", a.Path)
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return false, err
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}
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}
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return true, nil
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}
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func (a RepositoryId) IsValid() (bool, error) {
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switch a.Source {
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case "forgejo", "gitea":
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if strings.ToLower(a.Path) != "api/v1/activitypub/repository-id" && strings.ToLower(a.Path) != "api/activitypub/repository-id" {
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err := fmt.Errorf("path: %q has to be an api path", a.Path)
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return false, err
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}
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}
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return true, nil
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}
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func containsEmptyString(ar []string) bool {
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for _, elem := range ar {
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if elem == "" {
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return true
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}
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}
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return false
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}
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func removeEmptyStrings(ls []string) []string {
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var rs []string
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for _, str := range ls {
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if str != "" {
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rs = append(rs, str)
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}
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}
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return rs
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}
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