1330 行
36 KiB
Go
1330 行
36 KiB
Go
package pub
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"github.com/go-fed/activity/streams"
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"github.com/go-fed/activity/vocab"
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"io/ioutil"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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const (
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postContentTypeHeader = "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
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responseContentTypeHeader = "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
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getAcceptHeader = "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
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contentTypeHeader = "Content-Type"
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acceptHeader = "Accept"
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publicActivityPub = "https://www.w3.org/ns/activitystreams#Public"
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publicJsonLD = "Public"
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publicJsonLDAS = "as:Public"
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jsonLDContext = "@context"
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activityPubContext = "https://www.w3.org/ns/activitystreams"
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)
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var alternatives = []string{"application/activity+json"}
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func trimAll(s []string) []string {
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var r []string
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for _, e := range s {
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r = append(r, strings.Trim(e, " "))
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}
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return r
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}
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func headerEqualsOneOf(header string, acceptable []string) bool {
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sanitizedHeader := strings.Join(trimAll(strings.Split(header, ";")), ";")
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for _, v := range acceptable {
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// Remove any number of whitespace after ;'s
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sanitizedV := strings.Join(trimAll(strings.Split(v, ";")), ";")
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if sanitizedHeader == sanitizedV {
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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 isActivityPubPost(r *http.Request) bool {
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return r.Method == "POST" && headerEqualsOneOf(r.Header.Get(contentTypeHeader), []string{postContentTypeHeader, contentTypeHeader})
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}
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func isActivityPubGet(r *http.Request) bool {
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return r.Method == "GET" && headerEqualsOneOf(r.Header.Get(acceptHeader), []string{getAcceptHeader, contentTypeHeader})
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}
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// isPublic determines if a target is the Public collection as defined in the
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// spec, including JSON-LD compliant collections.
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func isPublic(s string) bool {
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return s == publicActivityPub || s == publicJsonLD || s == publicJsonLDAS
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}
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func addJSONLDContext(m map[string]interface{}) {
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m[jsonLDContext] = activityPubContext
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}
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// dereference makes an HTTP GET request to an IRI in order to obtain the
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// ActivityStream representation.
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func dereference(c HttpClient, u url.URL, agent string) ([]byte, error) {
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// TODO: (section 7.1) The server MUST dereference the collection (with the user's credentials)
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req, err := http.NewRequest("GET", u.String(), nil)
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if err != nil {
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return nil, err
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}
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req.Header.Add(acceptHeader, getAcceptHeader)
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req.Header.Add("Accept-Charset", "utf-8")
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req.Header.Add("Date", time.Now().UTC().Format("Mon, 02 Jan 2006 15:04:05")+" GMT")
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req.Header.Add("User-Agent", fmt.Sprintf("%s (go-fed ActivityPub)", agent))
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resp, err := c.Do(req)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("Request to %s failed (%d): %s", u.String(), resp.StatusCode, resp.Status)
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}
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return ioutil.ReadAll(resp.Body)
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}
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// postToOutbox will attempt to send a POST request to the given URL with the
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// body set to the provided bytes.
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func postToOutbox(c HttpClient, b []byte, to url.URL, agent string) error {
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byteCopy := make([]byte, 0, len(b))
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copy(b, byteCopy)
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buf := bytes.NewBuffer(byteCopy)
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req, err := http.NewRequest("POST", to.String(), buf)
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if err != nil {
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return err
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}
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req.Header.Add(contentTypeHeader, postContentTypeHeader)
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req.Header.Add("Accept-Charset", "utf-8")
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req.Header.Add("Date", time.Now().UTC().Format("Mon, 02 Jan 2006 15:04:05")+" GMT")
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req.Header.Add("User-Agent", fmt.Sprintf("%s (go-fed ActivityPub)", agent))
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resp, err := c.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("Request to %s failed (%d): %s", to.String(), resp.StatusCode, resp.Status)
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}
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return nil
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}
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// wrapInCreate will automatically wrap the provided object in a Create
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// activity. This will copy over the 'to', 'bto', 'cc', 'bcc', and 'audience'
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// properties. It will also copy over the published time if present.
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func (f *federator) wrapInCreate(o vocab.ObjectType, actor url.URL) *vocab.Create {
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c := &vocab.Create{}
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c.AddObject(o)
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c.AddActorIRI(actor)
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if o.IsPublished() {
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c.SetPublished(o.GetPublished())
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}
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for i := 0; i < o.ToLen(); i++ {
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if o.IsToObject(i) {
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c.AddToObject(o.GetToObject(i))
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} else if o.IsToLink(i) {
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c.AddToLink(o.GetToLink(i))
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} else if o.IsToIRI(i) {
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c.AddToIRI(o.GetToIRI(i))
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}
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}
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for i := 0; i < o.BtoLen(); i++ {
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if o.IsBtoObject(i) {
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c.AddBtoObject(o.GetBtoObject(i))
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} else if o.IsBtoLink(i) {
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c.AddBtoLink(o.GetBtoLink(i))
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} else if o.IsBtoIRI(i) {
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c.AddBtoIRI(o.GetBtoIRI(i))
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}
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}
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for i := 0; i < o.CcLen(); i++ {
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if o.IsCcObject(i) {
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c.AddCcObject(o.GetCcObject(i))
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} else if o.IsCcLink(i) {
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c.AddCcLink(o.GetCcLink(i))
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} else if o.IsCcIRI(i) {
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c.AddCcIRI(o.GetCcIRI(i))
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}
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}
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for i := 0; i < o.BccLen(); i++ {
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if o.IsBccObject(i) {
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c.AddBccObject(o.GetBccObject(i))
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} else if o.IsBccLink(i) {
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c.AddBccLink(o.GetBccLink(i))
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} else if o.IsBccIRI(i) {
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c.AddBccIRI(o.GetBccIRI(i))
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}
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}
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for i := 0; i < o.AudienceLen(); i++ {
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if o.IsAudienceObject(i) {
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c.AddAudienceObject(o.GetAudienceObject(i))
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} else if o.IsAudienceLink(i) {
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c.AddAudienceLink(o.GetAudienceLink(i))
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} else if o.IsAudienceIRI(i) {
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c.AddAudienceIRI(o.GetAudienceIRI(i))
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}
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}
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return c
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}
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// Ensures the activity and object have the same 'to', 'bto', 'cc', 'bcc', and
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// 'audience' properties. Copy the Activity's recipients to objects, and the
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// objects to the activity, but does NOT copy objects' recipients to each other.
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//
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// If there is any disagreement between the activity and an object, we default
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// to a no-op.
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func (f *federator) sameRecipients(a vocab.ActivityType) error {
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// First, map recipients for each object and the activity.
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to := make([]map[string]interface{}, a.ObjectLen())
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for i := 0; i < a.ObjectLen(); i++ {
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to[i] = make(map[string]interface{})
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if !a.IsObject(i) {
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return fmt.Errorf("sameRecipients does not support 'to' object IRIs on Activities")
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}
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o := a.GetObject(i)
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for j := 0; j < o.ToLen(); j++ {
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if o.IsToObject(j) {
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id := o.GetToObject(j).GetId()
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to[i][(&id).String()] = o.GetToObject(j)
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} else if o.IsToLink(j) {
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id := o.GetToLink(j).GetHref()
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to[i][(&id).String()] = o.GetToLink(j)
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} else if o.IsToIRI(j) {
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id := o.GetToIRI(j)
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to[i][(&id).String()] = id
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}
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}
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}
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toActivity := make(map[string]interface{})
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for i := 0; i < a.ToLen(); i++ {
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if a.IsToObject(i) {
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id := a.GetToObject(i).GetId()
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toActivity[(&id).String()] = a.GetToObject(i)
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} else if a.IsToLink(i) {
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id := a.GetToLink(i).GetHref()
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toActivity[(&id).String()] = a.GetToLink(i)
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} else if a.IsToIRI(i) {
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id := a.GetToIRI(i)
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toActivity[(&id).String()] = id
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}
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}
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bto := make([]map[string]interface{}, a.ObjectLen())
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for i := 0; i < a.ObjectLen(); i++ {
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bto[i] = make(map[string]interface{})
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if !a.IsObject(i) {
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return fmt.Errorf("sameRecipients does not support 'bto' object IRIs on Activities")
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}
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o := a.GetObject(i)
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for j := 0; j < o.BtoLen(); j++ {
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if o.IsBtoObject(j) {
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id := o.GetBtoObject(j).GetId()
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bto[i][(&id).String()] = o.GetBtoObject(j)
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} else if o.IsBtoLink(j) {
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id := o.GetBtoLink(j).GetHref()
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bto[i][(&id).String()] = o.GetBtoLink(j)
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} else if o.IsBtoIRI(j) {
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id := o.GetBtoIRI(j)
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bto[i][(&id).String()] = id
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}
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}
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}
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btoActivity := make(map[string]interface{})
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for i := 0; i < a.BtoLen(); i++ {
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if a.IsBtoObject(i) {
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id := a.GetBtoObject(i).GetId()
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btoActivity[(&id).String()] = a.GetBtoObject(i)
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} else if a.IsBtoLink(i) {
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id := a.GetBtoLink(i).GetHref()
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btoActivity[(&id).String()] = a.GetBtoLink(i)
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} else if a.IsBtoIRI(i) {
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id := a.GetBtoIRI(i)
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btoActivity[(&id).String()] = id
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}
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}
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cc := make([]map[string]interface{}, a.ObjectLen())
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for i := 0; i < a.ObjectLen(); i++ {
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cc[i] = make(map[string]interface{})
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if !a.IsObject(i) {
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return fmt.Errorf("sameRecipients does not support 'cc' object IRIs on Activities")
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}
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o := a.GetObject(i)
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for j := 0; j < o.CcLen(); j++ {
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if o.IsCcObject(j) {
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id := o.GetCcObject(j).GetId()
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cc[i][(&id).String()] = o.GetCcObject(j)
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} else if o.IsCcLink(j) {
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id := o.GetCcLink(j).GetHref()
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cc[i][(&id).String()] = o.GetCcLink(j)
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} else if o.IsCcIRI(j) {
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id := o.GetCcIRI(j)
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cc[i][(&id).String()] = id
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}
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}
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}
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ccActivity := make(map[string]interface{})
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for i := 0; i < a.CcLen(); i++ {
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if a.IsCcObject(i) {
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id := a.GetCcObject(i).GetId()
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ccActivity[(&id).String()] = a.GetCcObject(i)
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} else if a.IsCcLink(i) {
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id := a.GetCcLink(i).GetHref()
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ccActivity[(&id).String()] = a.GetCcLink(i)
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} else if a.IsCcIRI(i) {
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id := a.GetCcIRI(i)
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ccActivity[(&id).String()] = id
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}
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}
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bcc := make([]map[string]interface{}, a.ObjectLen())
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for i := 0; i < a.ObjectLen(); i++ {
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bcc[i] = make(map[string]interface{})
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if !a.IsObject(i) {
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return fmt.Errorf("sameRecipients does not support 'bcc' object IRIs on Activities")
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}
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o := a.GetObject(i)
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for j := 0; j < o.BccLen(); j++ {
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if o.IsBccObject(j) {
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id := o.GetBccObject(j).GetId()
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bcc[i][(&id).String()] = o.GetBccObject(j)
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} else if o.IsBccLink(j) {
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id := o.GetBccLink(j).GetHref()
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bcc[i][(&id).String()] = o.GetBccLink(j)
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} else if o.IsBccIRI(j) {
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id := o.GetBccIRI(j)
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bcc[i][(&id).String()] = id
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}
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}
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}
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bccActivity := make(map[string]interface{})
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for i := 0; i < a.BccLen(); i++ {
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if a.IsBccObject(i) {
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id := a.GetBccObject(i).GetId()
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bccActivity[(&id).String()] = a.GetBccObject(i)
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} else if a.IsBccLink(i) {
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id := a.GetBccLink(i).GetHref()
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bccActivity[(&id).String()] = a.GetBccLink(i)
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} else if a.IsBccIRI(i) {
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id := a.GetBccIRI(i)
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bccActivity[(&id).String()] = id
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}
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}
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audience := make([]map[string]interface{}, a.ObjectLen())
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for i := 0; i < a.ObjectLen(); i++ {
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audience[i] = make(map[string]interface{})
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if !a.IsObject(i) {
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return fmt.Errorf("sameRecipients does not support 'audience' object IRIs on Activities")
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}
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o := a.GetObject(i)
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for j := 0; j < o.AudienceLen(); j++ {
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if o.IsAudienceObject(j) {
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id := o.GetAudienceObject(j).GetId()
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audience[i][(&id).String()] = o.GetAudienceObject(j)
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} else if o.IsAudienceLink(j) {
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id := o.GetAudienceLink(j).GetHref()
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audience[i][(&id).String()] = o.GetAudienceLink(j)
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} else if o.IsAudienceIRI(j) {
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id := o.GetAudienceIRI(j)
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audience[i][(&id).String()] = id
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}
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}
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}
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audienceActivity := make(map[string]interface{})
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for i := 0; i < a.AudienceLen(); i++ {
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if a.IsAudienceObject(i) {
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id := a.GetAudienceObject(i).GetId()
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audienceActivity[(&id).String()] = a.GetAudienceObject(i)
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} else if a.IsAudienceLink(i) {
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id := a.GetAudienceLink(i).GetHref()
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audienceActivity[(&id).String()] = a.GetAudienceLink(i)
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} else if a.IsAudienceIRI(i) {
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id := a.GetAudienceIRI(i)
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audienceActivity[(&id).String()] = id
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}
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}
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// Next, add activity recipients to all objects if not already present
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for k, v := range toActivity {
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for i := 0; i < a.ObjectLen(); i++ {
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if _, ok := to[i][k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.GetObject(i).AddToObject(vObj)
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} else if vLink, ok := v.(vocab.LinkType); ok {
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a.GetObject(i).AddToLink(vLink)
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} else if vIRI, ok := v.(url.URL); ok {
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a.GetObject(i).AddToIRI(vIRI)
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}
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}
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}
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}
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for k, v := range btoActivity {
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for i := 0; i < a.ObjectLen(); i++ {
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if _, ok := bto[i][k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.GetObject(i).AddBtoObject(vObj)
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} else if vLink, ok := v.(vocab.LinkType); ok {
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a.GetObject(i).AddBtoLink(vLink)
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} else if vIRI, ok := v.(url.URL); ok {
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a.GetObject(i).AddBtoIRI(vIRI)
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}
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}
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}
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}
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for k, v := range ccActivity {
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for i := 0; i < a.ObjectLen(); i++ {
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if _, ok := cc[i][k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.GetObject(i).AddCcObject(vObj)
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} else if vLink, ok := v.(vocab.LinkType); ok {
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a.GetObject(i).AddCcLink(vLink)
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} else if vIRI, ok := v.(url.URL); ok {
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a.GetObject(i).AddCcIRI(vIRI)
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}
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}
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}
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}
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for k, v := range bccActivity {
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for i := 0; i < a.ObjectLen(); i++ {
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if _, ok := bcc[i][k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.GetObject(i).AddBccObject(vObj)
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} else if vLink, ok := v.(vocab.LinkType); ok {
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a.GetObject(i).AddBccLink(vLink)
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} else if vIRI, ok := v.(url.URL); ok {
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a.GetObject(i).AddBccIRI(vIRI)
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}
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}
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}
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}
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for k, v := range audienceActivity {
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for i := 0; i < a.ObjectLen(); i++ {
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if _, ok := audience[i][k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.GetObject(i).AddAudienceObject(vObj)
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} else if vLink, ok := v.(vocab.LinkType); ok {
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a.GetObject(i).AddAudienceLink(vLink)
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} else if vIRI, ok := v.(url.URL); ok {
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a.GetObject(i).AddAudienceIRI(vIRI)
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}
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}
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}
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}
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// Finally, add all the objects' recipients to the activity if not
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// already present.
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for i := 0; i < a.ObjectLen(); i++ {
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for k, v := range to[i] {
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if _, ok := toActivity[k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.AddToObject(vObj)
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} else if vLink, ok := v.(vocab.LinkType); ok {
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a.AddToLink(vLink)
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} else if vIRI, ok := v.(url.URL); ok {
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a.AddToIRI(vIRI)
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}
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}
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}
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for k, v := range bto[i] {
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if _, ok := btoActivity[k]; !ok {
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if vObj, ok := v.(vocab.ObjectType); ok {
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a.AddBtoObject(vObj)
|
|
} else if vLink, ok := v.(vocab.LinkType); ok {
|
|
a.AddBtoLink(vLink)
|
|
} else if vIRI, ok := v.(url.URL); ok {
|
|
a.AddBtoIRI(vIRI)
|
|
}
|
|
}
|
|
}
|
|
for k, v := range cc[i] {
|
|
if _, ok := ccActivity[k]; !ok {
|
|
if vObj, ok := v.(vocab.ObjectType); ok {
|
|
a.AddCcObject(vObj)
|
|
} else if vLink, ok := v.(vocab.LinkType); ok {
|
|
a.AddCcLink(vLink)
|
|
} else if vIRI, ok := v.(url.URL); ok {
|
|
a.AddCcIRI(vIRI)
|
|
}
|
|
}
|
|
}
|
|
for k, v := range bcc[i] {
|
|
if _, ok := bccActivity[k]; !ok {
|
|
if vObj, ok := v.(vocab.ObjectType); ok {
|
|
a.AddBccObject(vObj)
|
|
} else if vLink, ok := v.(vocab.LinkType); ok {
|
|
a.AddBccLink(vLink)
|
|
} else if vIRI, ok := v.(url.URL); ok {
|
|
a.AddBccIRI(vIRI)
|
|
}
|
|
}
|
|
}
|
|
for k, v := range audience[i] {
|
|
if _, ok := audienceActivity[k]; !ok {
|
|
if vObj, ok := v.(vocab.ObjectType); ok {
|
|
a.AddAudienceObject(vObj)
|
|
} else if vLink, ok := v.(vocab.LinkType); ok {
|
|
a.AddAudienceLink(vLink)
|
|
} else if vIRI, ok := v.(url.URL); ok {
|
|
a.AddAudienceIRI(vIRI)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// TODO: (Section 7) HTTP caching mechanisms [RFC7234] SHOULD be respected when appropriate, both when receiving responses from other servers as well as sending responses to other servers.
|
|
|
|
// deliver will complete the peer-to-peer sending of a federated message to
|
|
// another server.
|
|
func (f *federator) deliver(obj vocab.ActivityType) error {
|
|
recipients, err := f.prepare(obj)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
m, err := obj.Serialize()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
addJSONLDContext(m)
|
|
b, err := json.Marshal(m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, to := range recipients {
|
|
f.deliverer.Do(b, to, func(b []byte, u url.URL) error {
|
|
return postToOutbox(f.Client, b, u, f.Agent)
|
|
})
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// prepare takes a deliverableObject and returns a list of the proper recipient
|
|
// target URIs. Additionally, the deliverableObject will have any hidden
|
|
// hidden recipients ("bto" and "bcc") stripped from it.
|
|
func (c *federator) prepare(o deliverableObject) ([]url.URL, error) {
|
|
// Get inboxes of recipients
|
|
var r []url.URL
|
|
r = append(r, getToIRIs(o)...)
|
|
r = append(r, getBToIRIs(o)...)
|
|
r = append(r, getCcIRIs(o)...)
|
|
r = append(r, getBccIRIs(o)...)
|
|
r = append(r, getAudienceIRIs(o)...)
|
|
// TODO: Support delivery to shared inbox
|
|
// 1. When an object is being delivered to the originating actor's
|
|
// followers, a server MAY reduce the number of receiving actors
|
|
// delivered to by identifying all followers which share the same
|
|
// sharedInbox who would otherwise be individual recipients and instead
|
|
// deliver objects to said sharedInbox.
|
|
// 2. If an object is addressed to the Public special collection, a
|
|
// server MAY deliver that object to all known sharedInbox endpoints on
|
|
// the network.
|
|
r = filterURLs(r, isPublic)
|
|
receiverActors, err := c.resolveInboxes(r, 0, c.MaxDeliveryDepth)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
targets, err := getInboxes(receiverActors)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// Get inboxes of sender(s)
|
|
senderActors, err := c.resolveInboxes(getActorsAttributedToURI(o), 0, c.MaxDeliveryDepth)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ignore, err := getInboxes(senderActors)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// Post-processing
|
|
r = dedupeIRIs(targets, ignore)
|
|
stripHiddenRecipients(o)
|
|
return r, nil
|
|
}
|
|
|
|
// resolveInboxes takes a list of Actor id URIs and returns them as concrete
|
|
// instances of actorObject. It applies recursively when it encounters a target
|
|
// that is a Collection or OrderedCollection.
|
|
func (c *federator) resolveInboxes(r []url.URL, depth int, max int) ([]actor, error) {
|
|
if depth >= max {
|
|
return nil, nil
|
|
}
|
|
a := make([]actor, 0, len(r))
|
|
for _, u := range r {
|
|
// Do not retry here -- if a dereference fails, then fail the
|
|
// entire delivery.
|
|
resp, err := dereference(c.Client, u, c.Agent)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var m map[string]interface{}
|
|
if err = json.Unmarshal(resp, &m); err != nil {
|
|
return nil, err
|
|
}
|
|
var actor actor
|
|
var co *streams.Collection
|
|
var oc *streams.OrderedCollection
|
|
var cp *streams.CollectionPage
|
|
var ocp *streams.OrderedCollectionPage
|
|
// Set AT MOST one of: co, oc, cp, ocp
|
|
// If none of these are set, attempt to use actor
|
|
if err = toActorCollectionResolver(&actor, &co, &oc, &cp, &ocp).Deserialize(m); err != nil {
|
|
return nil, err
|
|
}
|
|
// If a recipient is a Collection or OrderedCollection, then the
|
|
// server MUST dereference the collection. Note that this also
|
|
// applies to CollectionPage and OrderedCollectionPage.
|
|
var uris []url.URL
|
|
if co != nil {
|
|
uris := getURIsInItemer(co.Raw())
|
|
actors, err := c.resolveInboxes(uris, depth+1, max)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
a = append(a, actors...)
|
|
} else if oc != nil {
|
|
uris := getURIsInOrderedItemer(oc.Raw())
|
|
actors, err := c.resolveInboxes(uris, depth+1, max)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
a = append(a, actors...)
|
|
} else if cp != nil {
|
|
cb := func(c vocab.CollectionPageType) error {
|
|
uris = getURIsInItemer(c)
|
|
return nil
|
|
}
|
|
err := doForCollectionPage(c.Client, c.Agent, cb, cp.Raw())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
actors, err := c.resolveInboxes(uris, depth+1, max)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
a = append(a, actors...)
|
|
} else if ocp != nil {
|
|
cb := func(c vocab.OrderedCollectionPageType) error {
|
|
uris = getURIsInOrderedItemer(c)
|
|
return nil
|
|
}
|
|
err := doForOrderedCollectionPage(c.Client, c.Agent, cb, ocp.Raw())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
actors, err := c.resolveInboxes(uris, depth+1, max)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
a = append(a, actors...)
|
|
} else if actor != nil {
|
|
a = append(a, actor)
|
|
}
|
|
}
|
|
return a, nil
|
|
}
|
|
|
|
// getInboxes extracts the 'inbox' IRIs from actors.
|
|
func getInboxes(a []actor) ([]url.URL, error) {
|
|
var u []url.URL
|
|
for _, actor := range a {
|
|
if actor.IsInboxAnyURI() {
|
|
u = append(u, actor.GetInboxAnyURI())
|
|
} else if actor.IsInboxOrderedCollection() {
|
|
oc := actor.GetInboxOrderedCollection()
|
|
if !oc.HasId() {
|
|
return nil, fmt.Errorf("actor inbox OrderedCollection has no IRI")
|
|
}
|
|
u = append(u, oc.GetId())
|
|
}
|
|
}
|
|
return u, nil
|
|
}
|
|
|
|
// getActorAttributedToURI attempts to find the URIs for the "actor" and
|
|
// "attributedTo" originators on the object.
|
|
func getActorsAttributedToURI(a actorObject) []url.URL {
|
|
var u []url.URL
|
|
for i := 0; i < a.AttributedToLen(); i++ {
|
|
if a.IsAttributedToObject(i) {
|
|
obj := a.GetAttributedToObject(i)
|
|
if obj.HasId() {
|
|
u = append(u, obj.GetId())
|
|
}
|
|
} else if a.IsAttributedToLink(i) {
|
|
l := a.GetAttributedToLink(i)
|
|
if l.HasHref() {
|
|
u = append(u, l.GetHref())
|
|
}
|
|
} else if a.IsAttributedToIRI(i) {
|
|
u = append(u, a.GetAttributedToIRI(i))
|
|
}
|
|
}
|
|
for i := 0; i < a.ActorLen(); i++ {
|
|
if a.IsActorObject(i) {
|
|
obj := a.GetActorObject(i)
|
|
if obj.HasId() {
|
|
u = append(u, obj.GetId())
|
|
}
|
|
} else if a.IsActorLink(i) {
|
|
l := a.GetActorLink(i)
|
|
if l.HasHref() {
|
|
u = append(u, l.GetHref())
|
|
}
|
|
} else if a.IsActorIRI(i) {
|
|
u = append(u, a.GetActorIRI(i))
|
|
}
|
|
}
|
|
return u
|
|
}
|
|
|
|
// stripHiddenRecipients removes "bto" and "bcc" from the deliverableObject.
|
|
// Note that this requirement of the specification is under "Section 6: Client
|
|
// to Server Interactions", the Social API, and not the Federative API.
|
|
func stripHiddenRecipients(o deliverableObject) {
|
|
for o.BtoLen() > 0 {
|
|
if o.IsBtoObject(0) {
|
|
o.RemoveBtoObject(0)
|
|
} else if o.IsBtoLink(0) {
|
|
o.RemoveBtoLink(0)
|
|
} else if o.IsBtoIRI(0) {
|
|
o.RemoveBtoIRI(0)
|
|
}
|
|
}
|
|
for o.BccLen() > 0 {
|
|
if o.IsBccObject(0) {
|
|
o.RemoveBccObject(0)
|
|
} else if o.IsBccLink(0) {
|
|
o.RemoveBccLink(0)
|
|
} else if o.IsBtoIRI(0) {
|
|
o.RemoveBccIRI(0)
|
|
}
|
|
}
|
|
}
|
|
|
|
// dedupeIRIs will deduplicate final inbox IRIs. The ignore list is applied to
|
|
// the final list
|
|
func dedupeIRIs(recipients, ignored []url.URL) (out []url.URL) {
|
|
ignoredMap := make(map[url.URL]bool, len(ignored))
|
|
for _, elem := range ignored {
|
|
ignoredMap[elem] = true
|
|
}
|
|
outMap := make(map[url.URL]bool, len(recipients))
|
|
for _, k := range recipients {
|
|
if !ignoredMap[k] && !outMap[k] {
|
|
out = append(out, k)
|
|
outMap[k] = true
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
// dedupeOrderedItems will deduplicate the 'orderedItems' within an ordered
|
|
// collection type. Deduplication happens by simply examining the 'id'.
|
|
func (f *federator) dedupeOrderedItems(oc vocab.OrderedCollectionType) (vocab.OrderedCollectionType, error) {
|
|
i := 0
|
|
seen := make(map[string]bool, oc.OrderedItemsLen())
|
|
for i < oc.OrderedItemsLen() {
|
|
var id string
|
|
var removeFn func(int)
|
|
if oc.IsOrderedItemsObject(i) {
|
|
removeFn = oc.RemoveOrderedItemsObject
|
|
iri := oc.GetOrderedItemsObject(i).GetId()
|
|
pIri := &iri
|
|
id = pIri.String()
|
|
} else if oc.IsOrderedItemsLink(i) {
|
|
removeFn = oc.RemoveOrderedItemsLink
|
|
iri := oc.GetOrderedItemsLink(i).GetId()
|
|
pIri := &iri
|
|
id = pIri.String()
|
|
} else if oc.IsOrderedItemsIRI(i) {
|
|
removeFn = oc.RemoveOrderedItemsIRI
|
|
b, err := dereference(f.Client, oc.GetOrderedItemsIRI(i), f.Agent)
|
|
var m map[string]interface{}
|
|
if err := json.Unmarshal(b, &m); err != nil {
|
|
return oc, err
|
|
}
|
|
var iri url.URL
|
|
var hasIri bool
|
|
if err = toIdResolver(&hasIri, &iri).Deserialize(m); err != nil {
|
|
return oc, err
|
|
}
|
|
pIri := &iri
|
|
id = pIri.String()
|
|
}
|
|
if seen[id] {
|
|
removeFn(i)
|
|
} else {
|
|
seen[id] = true
|
|
i++
|
|
}
|
|
}
|
|
return oc, nil
|
|
}
|
|
|
|
// filterURLs removes urls whose strings match the provided filter
|
|
func filterURLs(u []url.URL, fn func(s string) bool) []url.URL {
|
|
i := 0
|
|
for i < len(u) {
|
|
if fn(u[i].String()) {
|
|
u = append(u[:i], u[i+1:]...)
|
|
} else {
|
|
i++
|
|
}
|
|
}
|
|
return u
|
|
}
|
|
|
|
func getToIRIs(o deliverableObject) []url.URL {
|
|
var r []url.URL
|
|
for i := 0; i < o.ToLen(); i++ {
|
|
if o.IsToObject(i) {
|
|
obj := o.GetToObject(i)
|
|
if obj.HasId() {
|
|
r = append(r, obj.GetId())
|
|
}
|
|
} else if o.IsToLink(i) {
|
|
l := o.GetToLink(i)
|
|
if l.HasHref() {
|
|
r = append(r, l.GetHref())
|
|
}
|
|
} else if o.IsToIRI(i) {
|
|
r = append(r, o.GetToIRI(i))
|
|
}
|
|
}
|
|
return r
|
|
}
|
|
|
|
func getBToIRIs(o deliverableObject) []url.URL {
|
|
var r []url.URL
|
|
for i := 0; i < o.BtoLen(); i++ {
|
|
if o.IsBtoObject(i) {
|
|
obj := o.GetBtoObject(i)
|
|
if obj.HasId() {
|
|
r = append(r, obj.GetId())
|
|
}
|
|
} else if o.IsBtoLink(i) {
|
|
l := o.GetBtoLink(i)
|
|
if l.HasHref() {
|
|
r = append(r, l.GetHref())
|
|
}
|
|
} else if o.IsBtoIRI(i) {
|
|
r = append(r, o.GetBtoIRI(i))
|
|
}
|
|
}
|
|
return r
|
|
}
|
|
|
|
func getCcIRIs(o deliverableObject) []url.URL {
|
|
var r []url.URL
|
|
for i := 0; i < o.CcLen(); i++ {
|
|
if o.IsCcObject(i) {
|
|
obj := o.GetCcObject(i)
|
|
if obj.HasId() {
|
|
r = append(r, obj.GetId())
|
|
}
|
|
} else if o.IsCcLink(i) {
|
|
l := o.GetCcLink(i)
|
|
if l.HasHref() {
|
|
r = append(r, l.GetHref())
|
|
}
|
|
} else if o.IsCcIRI(i) {
|
|
r = append(r, o.GetCcIRI(i))
|
|
}
|
|
}
|
|
return r
|
|
}
|
|
|
|
func getBccIRIs(o deliverableObject) []url.URL {
|
|
var r []url.URL
|
|
for i := 0; i < o.BccLen(); i++ {
|
|
if o.IsBccObject(i) {
|
|
obj := o.GetBccObject(i)
|
|
if obj.HasId() {
|
|
r = append(r, obj.GetId())
|
|
}
|
|
} else if o.IsBccLink(i) {
|
|
l := o.GetBccLink(i)
|
|
if l.HasHref() {
|
|
r = append(r, l.GetHref())
|
|
}
|
|
} else if o.IsBccIRI(i) {
|
|
r = append(r, o.GetBccIRI(i))
|
|
}
|
|
}
|
|
return r
|
|
}
|
|
|
|
func getAudienceIRIs(o deliverableObject) []url.URL {
|
|
var r []url.URL
|
|
for i := 0; i < o.AudienceLen(); i++ {
|
|
if o.IsAudienceObject(i) {
|
|
obj := o.GetAudienceObject(i)
|
|
if obj.HasId() {
|
|
r = append(r, obj.GetId())
|
|
}
|
|
} else if o.IsAudienceLink(i) {
|
|
l := o.GetAudienceLink(i)
|
|
if l.HasHref() {
|
|
r = append(r, l.GetHref())
|
|
}
|
|
} else if o.IsAudienceIRI(i) {
|
|
r = append(r, o.GetAudienceIRI(i))
|
|
}
|
|
}
|
|
return r
|
|
}
|
|
|
|
// doForCollectionPage applies a function over a collection and its subsequent
|
|
// pages recursively. It returns the first non-nil error it encounters.
|
|
func doForCollectionPage(h HttpClient, agent string, cb func(c vocab.CollectionPageType) error, c vocab.CollectionPageType) error {
|
|
err := cb(c)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if c.IsNextCollectionPage() {
|
|
// Handle this one weird trick that other peers HATE federating
|
|
// with.
|
|
return doForCollectionPage(h, agent, cb, c.GetNextCollectionPage())
|
|
} else if c.IsNextLink() {
|
|
l := c.GetNextLink()
|
|
if l.HasHref() {
|
|
u := l.GetHref()
|
|
resp, err := dereference(h, u, agent)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
var m map[string]interface{}
|
|
err = json.Unmarshal(resp, &m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
next, err := toCollectionPage(m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if next != nil {
|
|
return doForCollectionPage(h, agent, cb, next.Raw())
|
|
}
|
|
}
|
|
} else if c.IsNextIRI() {
|
|
u := c.GetNextIRI()
|
|
resp, err := dereference(h, u, agent)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
var m map[string]interface{}
|
|
err = json.Unmarshal(resp, &m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
next, err := toCollectionPage(m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if next != nil {
|
|
return doForCollectionPage(h, agent, cb, next.Raw())
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// doForOrderedCollectionPage applies a function over a collection and its
|
|
// subsequent pages recursively. It returns the first non-nil error it
|
|
// encounters.
|
|
func doForOrderedCollectionPage(h HttpClient, agent string, cb func(c vocab.OrderedCollectionPageType) error, c vocab.OrderedCollectionPageType) error {
|
|
err := cb(c)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if c.IsNextOrderedCollectionPage() {
|
|
// Handle this one weird trick that other peers HATE federating
|
|
// with.
|
|
return doForOrderedCollectionPage(h, agent, cb, c.GetNextOrderedCollectionPage())
|
|
} else if c.IsNextLink() {
|
|
l := c.GetNextLink()
|
|
if l.HasHref() {
|
|
u := l.GetHref()
|
|
resp, err := dereference(h, u, agent)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
var m map[string]interface{}
|
|
err = json.Unmarshal(resp, &m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
next, err := toOrderedCollectionPage(m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if next != nil {
|
|
return doForOrderedCollectionPage(h, agent, cb, next.Raw())
|
|
}
|
|
}
|
|
} else if c.IsNextIRI() {
|
|
u := c.GetNextIRI()
|
|
resp, err := dereference(h, u, agent)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
var m map[string]interface{}
|
|
err = json.Unmarshal(resp, &m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
next, err := toOrderedCollectionPage(m)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if next != nil {
|
|
return doForOrderedCollectionPage(h, agent, cb, next.Raw())
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type itemer interface {
|
|
ItemsLen() (l int)
|
|
IsItemsObject(index int) (ok bool)
|
|
GetItemsObject(index int) (v vocab.ObjectType)
|
|
IsItemsLink(index int) (ok bool)
|
|
GetItemsLink(index int) (v vocab.LinkType)
|
|
IsItemsIRI(index int) (ok bool)
|
|
GetItemsIRI(index int) (v url.URL)
|
|
}
|
|
|
|
// getURIsInItemer will extract 'items' from the provided Collection or
|
|
// CollectionPage.
|
|
func getURIsInItemer(i itemer) []url.URL {
|
|
var u []url.URL
|
|
for j := 0; j < i.ItemsLen(); j++ {
|
|
if i.IsItemsObject(j) {
|
|
obj := i.GetItemsObject(j)
|
|
if obj.HasId() {
|
|
u = append(u, obj.GetId())
|
|
}
|
|
} else if i.IsItemsLink(j) {
|
|
l := i.GetItemsLink(j)
|
|
if l.HasHref() {
|
|
u = append(u, l.GetHref())
|
|
}
|
|
} else if i.IsItemsIRI(j) {
|
|
u = append(u, i.GetItemsIRI(j))
|
|
}
|
|
}
|
|
return u
|
|
}
|
|
|
|
type orderedItemer interface {
|
|
OrderedItemsLen() (l int)
|
|
IsOrderedItemsObject(index int) (ok bool)
|
|
GetOrderedItemsObject(index int) (v vocab.ObjectType)
|
|
IsOrderedItemsLink(index int) (ok bool)
|
|
GetOrderedItemsLink(index int) (v vocab.LinkType)
|
|
IsOrderedItemsIRI(index int) (ok bool)
|
|
GetOrderedItemsIRI(index int) (v url.URL)
|
|
}
|
|
|
|
// getURIsInOrderedItemer will extract 'items' from the provided
|
|
// OrderedCollection or OrderedCollectionPage.
|
|
func getURIsInOrderedItemer(i orderedItemer) []url.URL {
|
|
var u []url.URL
|
|
for j := 0; j < i.OrderedItemsLen(); j++ {
|
|
if i.IsOrderedItemsObject(j) {
|
|
obj := i.GetOrderedItemsObject(j)
|
|
if obj.HasId() {
|
|
u = append(u, obj.GetId())
|
|
}
|
|
} else if i.IsOrderedItemsLink(j) {
|
|
l := i.GetOrderedItemsLink(j)
|
|
if l.HasHref() {
|
|
u = append(u, l.GetHref())
|
|
}
|
|
} else if i.IsOrderedItemsIRI(j) {
|
|
u = append(u, i.GetOrderedItemsIRI(j))
|
|
}
|
|
}
|
|
return u
|
|
}
|
|
|
|
type activityWithObject interface {
|
|
ObjectLen() (l int)
|
|
IsObject(index int) (ok bool)
|
|
GetObject(index int) (v vocab.ObjectType)
|
|
IsObjectIRI(index int) (ok bool)
|
|
GetObjectIRI(index int) (v url.URL)
|
|
}
|
|
|
|
func getObjectIds(a activityWithObject) (u []url.URL, e error) {
|
|
for i := 0; i < a.ObjectLen(); i++ {
|
|
if a.IsObject(i) {
|
|
obj := a.GetObject(i)
|
|
if !obj.HasId() {
|
|
e = fmt.Errorf("object has no id: %v", obj)
|
|
return
|
|
}
|
|
u = append(u, obj.GetId())
|
|
} else if a.IsObjectIRI(i) {
|
|
u = append(u, a.GetObjectIRI(i))
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
type activityWithTarget interface {
|
|
TargetLen() (l int)
|
|
IsTargetObject(index int) (ok bool)
|
|
GetTargetObject(index int) (v vocab.ObjectType)
|
|
IsTargetIRI(index int) (ok bool)
|
|
GetTargetIRI(index int) (v url.URL)
|
|
}
|
|
|
|
func getTargetIds(a activityWithTarget) (u []url.URL, e error) {
|
|
for i := 0; i < a.TargetLen(); i++ {
|
|
if a.IsTargetObject(i) {
|
|
obj := a.GetTargetObject(i)
|
|
if !obj.HasId() {
|
|
e = fmt.Errorf("object has no id: %v", obj)
|
|
return
|
|
}
|
|
u = append(u, obj.GetId())
|
|
} else if a.IsTargetIRI(i) {
|
|
u = append(u, a.GetTargetIRI(i))
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func removeCollectionItemWithId(c vocab.CollectionType, iri url.URL) {
|
|
for i := 0; i < c.ItemsLen(); i++ {
|
|
if c.IsItemsObject(i) {
|
|
o := c.GetItemsObject(i)
|
|
if !o.HasId() {
|
|
continue
|
|
}
|
|
if o.GetId() == iri {
|
|
c.RemoveItemsObject(i)
|
|
return
|
|
}
|
|
} else if c.IsItemsLink(i) {
|
|
l := c.GetItemsLink(i)
|
|
if !l.HasHref() {
|
|
continue
|
|
}
|
|
if l.GetHref() == iri {
|
|
c.RemoveItemsLink(i)
|
|
return
|
|
}
|
|
} else if c.IsItemsIRI(i) {
|
|
if c.GetItemsIRI(i) == iri {
|
|
c.RemoveItemsIRI(i)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func removeOrderedCollectionItemWithId(c vocab.OrderedCollectionType, iri url.URL) {
|
|
for i := 0; i < c.OrderedItemsLen(); i++ {
|
|
if c.IsOrderedItemsObject(i) {
|
|
o := c.GetOrderedItemsObject(i)
|
|
if !o.HasId() {
|
|
continue
|
|
}
|
|
if o.GetId() == iri {
|
|
c.RemoveOrderedItemsObject(i)
|
|
return
|
|
}
|
|
} else if c.IsOrderedItemsLink(i) {
|
|
l := c.GetOrderedItemsLink(i)
|
|
if !l.HasHref() {
|
|
continue
|
|
}
|
|
if l.GetHref() == iri {
|
|
c.RemoveOrderedItemsLink(i)
|
|
return
|
|
}
|
|
} else if c.IsOrderedItemsIRI(i) {
|
|
if c.GetOrderedItemsIRI(i) == iri {
|
|
c.RemoveOrderedItemsIRI(i)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// toTombstone creates a Tombstone for the given object.
|
|
func toTombstone(obj vocab.ObjectType, id url.URL, now time.Time) vocab.TombstoneType {
|
|
tomb := &vocab.Tombstone{}
|
|
tomb.SetId(id)
|
|
for i := 0; i < obj.TypeLen(); i++ {
|
|
if s, ok := obj.GetType(i).(string); ok {
|
|
tomb.AddFormerTypeString(s)
|
|
} else if fObj, ok := obj.GetType(i).(vocab.ObjectType); ok {
|
|
tomb.AddFormerTypeObject(fObj)
|
|
}
|
|
}
|
|
if obj.IsPublished() {
|
|
tomb.SetPublished(obj.GetPublished())
|
|
} else if obj.IsPublishedIRI() {
|
|
tomb.SetPublishedIRI(obj.GetPublishedIRI())
|
|
}
|
|
if obj.IsUpdated() {
|
|
tomb.SetUpdated(obj.GetUpdated())
|
|
} else if obj.IsUpdatedIRI() {
|
|
tomb.SetUpdatedIRI(obj.GetUpdatedIRI())
|
|
}
|
|
tomb.SetDeleted(now)
|
|
return tomb
|
|
}
|
|
|
|
func (f *federator) addAllObjectsToActorCollection(ctx context.Context, getter func(actor vocab.ObjectType, lc *vocab.CollectionType, loc *vocab.OrderedCollectionType) error, c vocab.ActivityType) error {
|
|
for i := 0; i < c.ActorLen(); i++ {
|
|
var iri url.URL
|
|
if c.IsActorObject(i) {
|
|
obj := c.GetActorObject(i)
|
|
if !obj.HasId() {
|
|
return fmt.Errorf("actor does not have id")
|
|
}
|
|
iri = obj.GetId()
|
|
} else if c.IsActorLink(i) {
|
|
l := c.GetActorLink(i)
|
|
if !l.HasHref() {
|
|
return fmt.Errorf("actor Link href required")
|
|
}
|
|
iri = l.GetHref()
|
|
} else if c.IsActorIRI(i) {
|
|
iri = c.GetActorIRI(i)
|
|
}
|
|
if !f.App.Owns(ctx, iri) {
|
|
continue
|
|
}
|
|
var actor vocab.ObjectType
|
|
pObj, err := f.App.Get(ctx, iri)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
ok := false
|
|
actor, ok = pObj.(vocab.ObjectType)
|
|
if !ok {
|
|
return fmt.Errorf("actor is not vocab.ObjectType")
|
|
}
|
|
var lc vocab.CollectionType
|
|
var loc vocab.OrderedCollectionType
|
|
if err := getter(actor, &lc, &loc); err != nil {
|
|
return err
|
|
}
|
|
for i := 0; i < c.ObjectLen(); i++ {
|
|
if c.IsObjectIRI(i) {
|
|
if lc != nil {
|
|
lc.AddItemsIRI(c.GetObjectIRI(i))
|
|
} else if loc != nil {
|
|
loc.AddOrderedItemsIRI(c.GetObjectIRI(i))
|
|
}
|
|
} else if c.IsObject(i) {
|
|
if lc != nil {
|
|
lc.AddItemsObject(c.GetObject(i))
|
|
} else if loc != nil {
|
|
loc.AddOrderedItemsObject(c.GetObject(i))
|
|
}
|
|
}
|
|
}
|
|
if lc != nil {
|
|
if err := f.App.Set(ctx, lc); err != nil {
|
|
return err
|
|
}
|
|
} else if loc != nil {
|
|
if err := f.App.Set(ctx, loc); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (f *federator) addAllActorsToObjectCollection(ctx context.Context, getter func(object vocab.ObjectType, lc *vocab.CollectionType, loc *vocab.OrderedCollectionType) error, c vocab.ActivityType) error {
|
|
for i := 0; i < c.ObjectLen(); i++ {
|
|
var iri url.URL
|
|
if c.IsObject(i) {
|
|
obj := c.GetObject(i)
|
|
if !obj.HasId() {
|
|
return fmt.Errorf("object does not have id")
|
|
}
|
|
iri = obj.GetId()
|
|
} else if c.IsObjectIRI(i) {
|
|
iri = c.GetObjectIRI(i)
|
|
}
|
|
if !f.App.Owns(ctx, iri) {
|
|
continue
|
|
}
|
|
var object vocab.ObjectType
|
|
pObj, err := f.App.Get(ctx, iri)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
ok := false
|
|
object, ok = pObj.(vocab.ObjectType)
|
|
if !ok {
|
|
return fmt.Errorf("object is not vocab.ObjectType")
|
|
}
|
|
var lc vocab.CollectionType
|
|
var loc vocab.OrderedCollectionType
|
|
if err := getter(object, &lc, &loc); err != nil {
|
|
return err
|
|
}
|
|
for i := 0; i < c.ActorLen(); i++ {
|
|
if c.IsActorIRI(i) {
|
|
if lc != nil {
|
|
lc.AddItemsIRI(c.GetActorIRI(i))
|
|
} else if loc != nil {
|
|
loc.AddOrderedItemsIRI(c.GetActorIRI(i))
|
|
}
|
|
} else if c.IsActorObject(i) {
|
|
if lc != nil {
|
|
lc.AddItemsObject(c.GetActorObject(i))
|
|
} else if loc != nil {
|
|
loc.AddOrderedItemsObject(c.GetActorObject(i))
|
|
}
|
|
} else if c.IsActorLink(i) {
|
|
if lc != nil {
|
|
lc.AddItemsLink(c.GetActorLink(i))
|
|
} else if loc != nil {
|
|
loc.AddOrderedItemsLink(c.GetActorLink(i))
|
|
}
|
|
}
|
|
}
|
|
if lc != nil {
|
|
if err := f.App.Set(ctx, lc); err != nil {
|
|
return err
|
|
}
|
|
} else if loc != nil {
|
|
if err := f.App.Set(ctx, loc); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// TODO: Move this to vocab package.
|
|
var activityTypes = []string{"Accept", "Add", "Announce", "Arrive", "Block", "Create", "Delete", "Dislike", "Flag", "Follow", "Ignore", "Invite", "Join", "Leave", "Like", "Listen", "Move", "Offer", "Question", "Reject", "Read", "Remove", "TentativeReject", "TentativeAccept", "Travel", "Undo", "Update", "View"}
|
|
|
|
func isActivityType(t Typer) bool {
|
|
hasType := make(map[string]bool, 1)
|
|
for i := 0; i < t.TypeLen(); i++ {
|
|
v := t.GetType(i)
|
|
if s, ok := v.(string); ok {
|
|
hasType[s] = true
|
|
}
|
|
}
|
|
for _, t := range activityTypes {
|
|
if hasType[t] {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|