909 lines
30 KiB
Go
909 lines
30 KiB
Go
package activitypub
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/gob"
|
|
"errors"
|
|
"reflect"
|
|
"strings"
|
|
"time"
|
|
"unsafe"
|
|
|
|
"github.com/valyala/fastjson"
|
|
)
|
|
|
|
// Activity Types
|
|
const (
|
|
AcceptType ActivityVocabularyType = "Accept"
|
|
AddType ActivityVocabularyType = "Add"
|
|
AnnounceType ActivityVocabularyType = "Announce"
|
|
ArriveType ActivityVocabularyType = "Arrive"
|
|
BlockType ActivityVocabularyType = "Block"
|
|
CreateType ActivityVocabularyType = "Create"
|
|
DeleteType ActivityVocabularyType = "Delete"
|
|
DislikeType ActivityVocabularyType = "Dislike"
|
|
FlagType ActivityVocabularyType = "Flag"
|
|
FollowType ActivityVocabularyType = "Follow"
|
|
IgnoreType ActivityVocabularyType = "Ignore"
|
|
InviteType ActivityVocabularyType = "Invite"
|
|
JoinType ActivityVocabularyType = "Join"
|
|
LeaveType ActivityVocabularyType = "Leave"
|
|
LikeType ActivityVocabularyType = "Like"
|
|
ListenType ActivityVocabularyType = "Listen"
|
|
MoveType ActivityVocabularyType = "Move"
|
|
OfferType ActivityVocabularyType = "Offer"
|
|
QuestionType ActivityVocabularyType = "Question"
|
|
RejectType ActivityVocabularyType = "Reject"
|
|
ReadType ActivityVocabularyType = "Read"
|
|
RemoveType ActivityVocabularyType = "Remove"
|
|
TentativeRejectType ActivityVocabularyType = "TentativeReject"
|
|
TentativeAcceptType ActivityVocabularyType = "TentativeAccept"
|
|
TravelType ActivityVocabularyType = "Travel"
|
|
UndoType ActivityVocabularyType = "Undo"
|
|
UpdateType ActivityVocabularyType = "Update"
|
|
ViewType ActivityVocabularyType = "View"
|
|
)
|
|
|
|
func (a ActivityVocabularyTypes) Contains(typ ActivityVocabularyType) bool {
|
|
for _, v := range a {
|
|
if strings.ToLower(string(v)) == strings.ToLower(string(typ)) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// ContentManagementActivityTypes use case primarily deals with activities that involve the creation, modification or deletion of content.
|
|
// This includes, for instance, activities such as "John created a new note", "Sally updated an article", and "Joe deleted the photo".
|
|
var ContentManagementActivityTypes = ActivityVocabularyTypes{
|
|
CreateType,
|
|
DeleteType,
|
|
UpdateType,
|
|
}
|
|
|
|
// CollectionManagementActivityTypes use case primarily deals with activities involving the management of content within collections.
|
|
// Examples of collections include things like folders, albums, friend lists, etc.
|
|
// This includes, for instance, activities such as "Sally added a file to Folder A", "John moved the file from Folder A to Folder B", etc.
|
|
var CollectionManagementActivityTypes = ActivityVocabularyTypes{
|
|
AddType,
|
|
MoveType,
|
|
RemoveType,
|
|
}
|
|
|
|
// ReactionsActivityTypes use case primarily deals with reactions to content.
|
|
// This can include activities such as liking or disliking content, ignoring updates, flagging content as being inappropriate, accepting or rejecting objects, etc.
|
|
var ReactionsActivityTypes = ActivityVocabularyTypes{
|
|
AcceptType,
|
|
BlockType,
|
|
DislikeType,
|
|
FlagType,
|
|
IgnoreType,
|
|
LikeType,
|
|
RejectType,
|
|
TentativeAcceptType,
|
|
TentativeRejectType,
|
|
}
|
|
|
|
// EventRSVPActivityTypes use case primarily deals with invitations to events and RSVP type responses.
|
|
var EventRSVPActivityTypes = ActivityVocabularyTypes{
|
|
AcceptType,
|
|
IgnoreType,
|
|
InviteType,
|
|
RejectType,
|
|
TentativeAcceptType,
|
|
TentativeRejectType,
|
|
}
|
|
|
|
// GroupManagementActivityTypes use case primarily deals with management of groups.
|
|
// It can include, for instance, activities such as "John added Sally to Group A", "Sally joined Group A", "Joe left Group A", etc.
|
|
var GroupManagementActivityTypes = ActivityVocabularyTypes{
|
|
AddType,
|
|
JoinType,
|
|
LeaveType,
|
|
RemoveType,
|
|
}
|
|
|
|
// ContentExperienceActivityTypes use case primarily deals with describing activities involving listening to, reading, or viewing content.
|
|
// For instance, "Sally read the article", "Joe listened to the song".
|
|
var ContentExperienceActivityTypes = ActivityVocabularyTypes{
|
|
ListenType,
|
|
ReadType,
|
|
ViewType,
|
|
}
|
|
|
|
// GeoSocialEventsActivityTypes use case primarily deals with activities involving geo-tagging type activities.
|
|
// For instance, it can include activities such as "Joe arrived at work", "Sally left work", and "John is travel from home to work".
|
|
var GeoSocialEventsActivityTypes = ActivityVocabularyTypes{
|
|
ArriveType,
|
|
LeaveType,
|
|
TravelType,
|
|
}
|
|
|
|
// NotificationActivityTypes use case primarily deals with calling attention to particular objects or notifications.
|
|
var NotificationActivityTypes = ActivityVocabularyTypes{
|
|
AnnounceType,
|
|
}
|
|
|
|
// QuestionActivityTypes use case primarily deals with representing inquiries of any type.
|
|
// See 5.4 Representing Questions for more information.
|
|
var QuestionActivityTypes = ActivityVocabularyTypes{
|
|
QuestionType,
|
|
}
|
|
|
|
// RelationshipManagementActivityTypes use case primarily deals with representing activities involving the management of interpersonal and social relationships
|
|
// (e.g. friend requests, management of social network, etc). See 5.2 Representing Relationships Between Entities for more information.
|
|
var RelationshipManagementActivityTypes = ActivityVocabularyTypes{
|
|
AcceptType,
|
|
AddType,
|
|
BlockType,
|
|
CreateType,
|
|
DeleteType,
|
|
FollowType,
|
|
IgnoreType,
|
|
InviteType,
|
|
RejectType,
|
|
}
|
|
|
|
// NegatingActivityTypes use case primarily deals with the ability to redact previously completed activities.
|
|
// See 5.5 Inverse Activities and "Undo" for more information.
|
|
var NegatingActivityTypes = ActivityVocabularyTypes{
|
|
UndoType,
|
|
}
|
|
|
|
// OffersActivityTypes use case deals with activities involving offering one object to another.
|
|
// It can include, for instance, activities such as "Company A is offering a discount on purchase of Product Z to Sally", "Sally is offering to add a File to Folder A", etc.
|
|
var OffersActivityTypes = ActivityVocabularyTypes{
|
|
OfferType,
|
|
}
|
|
|
|
var IntransitiveActivityTypes = ActivityVocabularyTypes{
|
|
ArriveType,
|
|
TravelType,
|
|
QuestionType,
|
|
}
|
|
|
|
var ActivityTypes = ActivityVocabularyTypes{
|
|
AcceptType,
|
|
AddType,
|
|
AnnounceType,
|
|
BlockType,
|
|
CreateType,
|
|
DeleteType,
|
|
DislikeType,
|
|
FlagType,
|
|
FollowType,
|
|
IgnoreType,
|
|
InviteType,
|
|
JoinType,
|
|
LeaveType,
|
|
LikeType,
|
|
ListenType,
|
|
MoveType,
|
|
OfferType,
|
|
RejectType,
|
|
ReadType,
|
|
RemoveType,
|
|
TentativeRejectType,
|
|
TentativeAcceptType,
|
|
UndoType,
|
|
UpdateType,
|
|
ViewType,
|
|
}
|
|
|
|
// HasRecipients is an interface implemented by activities to return their audience
|
|
// for further propagation
|
|
type HasRecipients interface {
|
|
// Recipients is a method that should do a recipients de-duplication step and then return
|
|
// the remaining recipients
|
|
Recipients() ItemCollection
|
|
Clean()
|
|
}
|
|
|
|
// Activity is a subtype of Object that describes some form of action that may happen,
|
|
// is currently happening, or has already happened.
|
|
// The Activity type itself serves as an abstract base type for all types of activities.
|
|
// It is important to note that the Activity type itself does not carry any specific semantics
|
|
// about the kind of action being taken.
|
|
type Activity struct {
|
|
// ID provides the globally unique identifier for anActivity Pub Object or Link.
|
|
ID ID `jsonld:"id,omitempty"`
|
|
// Type identifies the Activity Pub Object or Link type. Multiple values may be specified.
|
|
Type ActivityVocabularyType `jsonld:"type,omitempty"`
|
|
// Name a simple, human-readable, plain-text name for the object.
|
|
// HTML markup MUST NOT be included. The name MAY be expressed using multiple language-tagged values.
|
|
Name NaturalLanguageValues `jsonld:"name,omitempty,collapsible"`
|
|
// Attachment identifies a resource attached or related to an object that potentially requires special handling.
|
|
// The intent is to provide a model that is at least semantically similar to attachments in email.
|
|
Attachment Item `jsonld:"attachment,omitempty"`
|
|
// AttributedTo identifies one or more entities to which this object is attributed. The attributed entities might not be Actors.
|
|
// For instance, an object might be attributed to the completion of another activity.
|
|
AttributedTo Item `jsonld:"attributedTo,omitempty"`
|
|
// Audience identifies one or more entities that represent the total population of entities
|
|
// for which the object can considered to be relevant.
|
|
Audience ItemCollection `jsonld:"audience,omitempty"`
|
|
// Content or textual representation of the Activity Pub Object encoded as a JSON string.
|
|
// By default, the value of content is HTML.
|
|
// The mediaType property can be used in the object to indicate a different content type.
|
|
// (The content MAY be expressed using multiple language-tagged values.)
|
|
Content NaturalLanguageValues `jsonld:"content,omitempty,collapsible"`
|
|
// Context identifies the context within which the object exists or an activity was performed.
|
|
// The notion of "context" used is intentionally vague.
|
|
// The intended function is to serve as a means of grouping objects and activities that share a
|
|
// common originating context or purpose. An example could be all activities relating to a common project or event.
|
|
Context Item `jsonld:"context,omitempty"`
|
|
// MediaType when used on an Object, identifies the MIME media type of the value of the content property.
|
|
// If not specified, the content property is assumed to contain text/html content.
|
|
MediaType MimeType `jsonld:"mediaType,omitempty"`
|
|
// EndTime the date and time describing the actual or expected ending time of the object.
|
|
// When used with an Activity object, for instance, the endTime property specifies the moment
|
|
// the activity concluded or is expected to conclude.
|
|
EndTime time.Time `jsonld:"endTime,omitempty"`
|
|
// Generator identifies the entity (e.g. an application) that generated the object.
|
|
Generator Item `jsonld:"generator,omitempty"`
|
|
// Icon indicates an entity that describes an icon for this object.
|
|
// The image should have an aspect ratio of one (horizontal) to one (vertical)
|
|
// and should be suitable for presentation at a small size.
|
|
Icon Item `jsonld:"icon,omitempty"`
|
|
// Image indicates an entity that describes an image for this object.
|
|
// Unlike the icon property, there are no aspect ratio or display size limitations assumed.
|
|
Image Item `jsonld:"image,omitempty"`
|
|
// InReplyTo indicates one or more entities for which this object is considered a response.
|
|
InReplyTo Item `jsonld:"inReplyTo,omitempty"`
|
|
// Location indicates one or more physical or logical locations associated with the object.
|
|
Location Item `jsonld:"location,omitempty"`
|
|
// Preview identifies an entity that provides a preview of this object.
|
|
Preview Item `jsonld:"preview,omitempty"`
|
|
// Published the date and time at which the object was published
|
|
Published time.Time `jsonld:"published,omitempty"`
|
|
// Replies identifies a Collection containing objects considered to be responses to this object.
|
|
Replies Item `jsonld:"replies,omitempty"`
|
|
// StartTime the date and time describing the actual or expected starting time of the object.
|
|
// When used with an Activity object, for instance, the startTime property specifies
|
|
// the moment the activity began or is scheduled to begin.
|
|
StartTime time.Time `jsonld:"startTime,omitempty"`
|
|
// Summary a natural language summarization of the object encoded as HTML.
|
|
// *Multiple language tagged summaries may be provided.)
|
|
Summary NaturalLanguageValues `jsonld:"summary,omitempty,collapsible"`
|
|
// Tag one or more "tags" that have been associated with an objects. A tag can be any kind of Activity Pub Object.
|
|
// The key difference between attachment and tag is that the former implies association by inclusion,
|
|
// while the latter implies associated by reference.
|
|
Tag ItemCollection `jsonld:"tag,omitempty"`
|
|
// Updated the date and time at which the object was updated
|
|
Updated time.Time `jsonld:"updated,omitempty"`
|
|
// URL identifies one or more links to representations of the object
|
|
URL LinkOrIRI `jsonld:"url,omitempty"`
|
|
// To identifies an entity considered to be part of the public primary audience of an Activity Pub Object
|
|
To ItemCollection `jsonld:"to,omitempty"`
|
|
// Bto identifies anActivity Pub Object that is part of the private primary audience of this Activity Pub Object.
|
|
Bto ItemCollection `jsonld:"bto,omitempty"`
|
|
// CC identifies anActivity Pub Object that is part of the public secondary audience of this Activity Pub Object.
|
|
CC ItemCollection `jsonld:"cc,omitempty"`
|
|
// BCC identifies one or more Objects that are part of the private secondary audience of this Activity Pub Object.
|
|
BCC ItemCollection `jsonld:"bcc,omitempty"`
|
|
// Duration when the object describes a time-bound resource, such as an audio or video, a meeting, etc,
|
|
// the duration property indicates the object's approximate duration.
|
|
// The value must be expressed as an xsd:duration as defined by [ xmlschema11-2],
|
|
// section 3.3.6 (e.g. a period of 5 seconds is represented as "PT5S").
|
|
Duration time.Duration `jsonld:"duration,omitempty"`
|
|
// This is a list of all Like activities with this object as the object property, added as a side effect.
|
|
// The likes collection MUST be either an OrderedCollection or a Collection and MAY be filtered on privileges
|
|
// of an authenticated user or as appropriate when no authentication is given.
|
|
Likes Item `jsonld:"likes,omitempty"`
|
|
// This is a list of all Announce activities with this object as the object property, added as a side effect.
|
|
// The shares collection MUST be either an OrderedCollection or a Collection and MAY be filtered on privileges
|
|
// of an authenticated user or as appropriate when no authentication is given.
|
|
Shares Item `jsonld:"shares,omitempty"`
|
|
// Source property is intended to convey some sort of source from which the content markup was derived,
|
|
// as a form of provenance, or to support future editing by clients.
|
|
// In general, clients do the conversion from source to content, not the other way around.
|
|
Source Source `jsonld:"source,omitempty"`
|
|
// CanReceiveActivities describes one or more entities that either performed or are expected to perform the activity.
|
|
// Any single activity can have multiple actors. The actor may be specified using an indirect Link.
|
|
Actor Item `jsonld:"actor,omitempty"`
|
|
// Target describes the indirect object, or target, of the activity.
|
|
// The precise meaning of the target is largely dependent on the type of action being described
|
|
// but will often be the object of the English preposition "to".
|
|
// For instance, in the activity "John added a movie to his wishlist",
|
|
// the target of the activity is John's wishlist. An activity can have more than one target.
|
|
Target Item `jsonld:"target,omitempty"`
|
|
// Result describes the result of the activity. For instance, if a particular action results in the creation
|
|
// of a new resource, the result property can be used to describe that new resource.
|
|
Result Item `jsonld:"result,omitempty"`
|
|
// Origin describes an indirect object of the activity from which the activity is directed.
|
|
// The precise meaning of the origin is the object of the English preposition "from".
|
|
// For instance, in the activity "John moved an item to List B from List A", the origin of the activity is "List A".
|
|
Origin Item `jsonld:"origin,omitempty"`
|
|
// Instrument identifies one or more objects used (or to be used) in the completion of an Activity.
|
|
Instrument Item `jsonld:"instrument,omitempty"`
|
|
// Object When used within an Activity, describes the direct object of the activity.
|
|
// For instance, in the activity "John added a movie to his wishlist",
|
|
// the object of the activity is the movie added.
|
|
// When used within a Relationship describes the entity to which the subject is related.
|
|
Object Item `jsonld:"object,omitempty"`
|
|
}
|
|
|
|
// GetType returns the ActivityVocabulary type of the current Activity
|
|
func (a Activity) GetType() ActivityVocabularyType {
|
|
return a.Type
|
|
}
|
|
|
|
// IsLink returns false for Activity objects
|
|
func (a Activity) IsLink() bool {
|
|
return false
|
|
}
|
|
|
|
// GetID returns the ID corresponding to the Activity object
|
|
func (a Activity) GetID() ID {
|
|
return a.ID
|
|
}
|
|
|
|
// GetLink returns the IRI corresponding to the Activity object
|
|
func (a Activity) GetLink() IRI {
|
|
return IRI(a.ID)
|
|
}
|
|
|
|
// IsObject returns true for Activity objects
|
|
func (a Activity) IsObject() bool {
|
|
return true
|
|
}
|
|
|
|
// IsCollection returns false for Activity objects
|
|
func (a Activity) IsCollection() bool {
|
|
return false
|
|
}
|
|
|
|
func removeFromCollection(col ItemCollection, items ...Item) ItemCollection {
|
|
result := make(ItemCollection, 0)
|
|
if len(items) == 0 {
|
|
return col
|
|
}
|
|
for _, ob := range col {
|
|
found := false
|
|
for _, it := range items {
|
|
if ob.GetID().Equals(it.GetID(), false) {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
result = append(result, ob)
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
func removeFromAudience(a *Activity, items ...Item) error {
|
|
if a.To != nil {
|
|
a.To = removeFromCollection(a.To, items...)
|
|
}
|
|
if a.Bto != nil {
|
|
a.Bto = removeFromCollection(a.Bto, items...)
|
|
}
|
|
if a.CC != nil {
|
|
a.CC = removeFromCollection(a.CC, items...)
|
|
}
|
|
if a.BCC != nil {
|
|
a.BCC = removeFromCollection(a.BCC, items...)
|
|
}
|
|
if a.Audience != nil {
|
|
a.Audience = removeFromCollection(a.Audience, items...)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Recipients performs recipient de-duplication on the Activity's To, Bto, CC and BCC properties
|
|
func (a *Activity) Recipients() ItemCollection {
|
|
var alwaysRemove ItemCollection
|
|
if a.GetType() == BlockType && a.Object != nil {
|
|
alwaysRemove = append(alwaysRemove, a.Object)
|
|
}
|
|
if a.Actor != nil {
|
|
alwaysRemove = append(alwaysRemove, a.Actor)
|
|
}
|
|
if len(alwaysRemove) > 0 {
|
|
removeFromAudience(a, alwaysRemove...)
|
|
}
|
|
return ItemCollectionDeduplication(&a.To, &a.Bto, &a.CC, &a.BCC, &a.Audience)
|
|
}
|
|
|
|
// Clean removes Bto and BCC properties
|
|
func (a *Activity) Clean() {
|
|
a.BCC = nil
|
|
a.Bto = nil
|
|
if a.Object != nil && a.Object.IsObject() {
|
|
OnObject(a.Object, func(o *Object) error {
|
|
o.Clean()
|
|
return nil
|
|
})
|
|
}
|
|
if a.Actor != nil && a.Actor.IsObject() {
|
|
OnObject(a.Actor, func(o *Object) error {
|
|
o.Clean()
|
|
return nil
|
|
})
|
|
}
|
|
if a.Target != nil && a.Target.IsObject() {
|
|
OnObject(a.Target, func(o *Object) error {
|
|
o.Clean()
|
|
return nil
|
|
})
|
|
}
|
|
}
|
|
|
|
type (
|
|
// Accept indicates that the actor accepts the object. The target property can be used in certain circumstances to indicate
|
|
// the context into which the object has been accepted.
|
|
Accept = Activity
|
|
|
|
// Add indicates that the actor has added the object to the target. If the target property is not explicitly specified,
|
|
// the target would need to be determined implicitly by context.
|
|
// The origin can be used to identify the context from which the object originated.
|
|
Add = Activity
|
|
|
|
// Announce indicates that the actor is calling the target's attention the object.
|
|
// The origin typically has no defined meaning.
|
|
Announce = Activity
|
|
|
|
// Block indicates that the actor is blocking the object. Blocking is a stronger form of Ignore.
|
|
// The typical use is to support social systems that allow one user to block activities or content of other users.
|
|
// The target and origin typically have no defined meaning.
|
|
Block = Ignore
|
|
|
|
// Create indicates that the actor has created the object.
|
|
Create = Activity
|
|
|
|
// Delete indicates that the actor has deleted the object.
|
|
// If specified, the origin indicates the context from which the object was deleted.
|
|
Delete = Activity
|
|
|
|
// Dislike indicates that the actor dislikes the object.
|
|
Dislike = Activity
|
|
|
|
// Flag indicates that the actor is "flagging" the object.
|
|
// Flagging is defined in the sense common to many social platforms as reporting content as being
|
|
// inappropriate for any number of reasons.
|
|
Flag = Activity
|
|
|
|
// Follow indicates that the actor is "following" the object. Following is defined in the sense typically used within
|
|
// Social systems in which the actor is interested in any activity performed by or on the object.
|
|
// The target and origin typically have no defined meaning.
|
|
Follow = Activity
|
|
|
|
// Ignore indicates that the actor is ignoring the object. The target and origin typically have no defined meaning.
|
|
Ignore = Activity
|
|
|
|
// Invite is a specialization of Offer in which the actor is extending an invitation for the object to the target.
|
|
Invite = Offer
|
|
|
|
// Join indicates that the actor has joined the object. The target and origin typically have no defined meaning.
|
|
Join = Activity
|
|
|
|
// Leave indicates that the actor has left the object. The target and origin typically have no meaning.
|
|
Leave = Activity
|
|
|
|
// Like indicates that the actor likes, recommends or endorses the object.
|
|
// The target and origin typically have no defined meaning.
|
|
Like = Activity
|
|
|
|
// Listen inherits all properties from Activity.
|
|
Listen = Activity
|
|
|
|
// Move indicates that the actor has moved object from origin to target.
|
|
// If the origin or target are not specified, either can be determined by context.
|
|
Move = Activity
|
|
|
|
// Offer indicates that the actor is offering the object.
|
|
// If specified, the target indicates the entity to which the object is being offered.
|
|
Offer = Activity
|
|
|
|
// Reject indicates that the actor is rejecting the object. The target and origin typically have no defined meaning.
|
|
Reject = Activity
|
|
|
|
// Read indicates that the actor has read the object.
|
|
Read = Activity
|
|
|
|
// Remove indicates that the actor is removing the object. If specified,
|
|
// the origin indicates the context from which the object is being removed.
|
|
Remove = Activity
|
|
|
|
// TentativeReject is a specialization of Reject in which the rejection is considered tentative.
|
|
TentativeReject = Reject
|
|
|
|
// TentativeAccept is a specialization of Accept indicating that the acceptance is tentative.
|
|
TentativeAccept = Accept
|
|
|
|
// Undo indicates that the actor is undoing the object. In most cases, the object will be an Activity describing
|
|
// some previously performed action (for instance, a person may have previously "liked" an article but,
|
|
// for whatever reason, might choose to undo that like at some later point in time).
|
|
// The target and origin typically have no defined meaning.
|
|
Undo = Activity
|
|
|
|
// Update indicates that the actor has updated the object. Note, however, that this vocabulary does not define a mechanism
|
|
// for describing the actual set of modifications made to object.
|
|
// The target and origin typically have no defined meaning.
|
|
Update = Activity
|
|
|
|
// View indicates that the actor has viewed the object.
|
|
View = Activity
|
|
)
|
|
|
|
// AcceptNew initializes an Accept activity
|
|
func AcceptNew(id ID, ob Item) *Accept {
|
|
a := ActivityNew(id, AcceptType, ob)
|
|
o := Accept(*a)
|
|
return &o
|
|
}
|
|
|
|
// AddNew initializes an Add activity
|
|
func AddNew(id ID, ob Item, trgt Item) *Add {
|
|
a := ActivityNew(id, AddType, ob)
|
|
o := Add(*a)
|
|
o.Target = trgt
|
|
return &o
|
|
}
|
|
|
|
// AnnounceNew initializes an Announce activity
|
|
func AnnounceNew(id ID, ob Item) *Announce {
|
|
a := ActivityNew(id, AnnounceType, ob)
|
|
o := Announce(*a)
|
|
return &o
|
|
}
|
|
|
|
// BlockNew initializes a Block activity
|
|
func BlockNew(id ID, ob Item) *Block {
|
|
a := ActivityNew(id, BlockType, ob)
|
|
o := Block(*a)
|
|
return &o
|
|
}
|
|
|
|
// CreateNew initializes a Create activity
|
|
func CreateNew(id ID, ob Item) *Create {
|
|
a := ActivityNew(id, CreateType, ob)
|
|
o := Create(*a)
|
|
return &o
|
|
}
|
|
|
|
// DeleteNew initializes a Delete activity
|
|
func DeleteNew(id ID, ob Item) *Delete {
|
|
a := ActivityNew(id, DeleteType, ob)
|
|
o := Delete(*a)
|
|
return &o
|
|
}
|
|
|
|
// DislikeNew initializes a Dislike activity
|
|
func DislikeNew(id ID, ob Item) *Dislike {
|
|
a := ActivityNew(id, DislikeType, ob)
|
|
o := Dislike(*a)
|
|
return &o
|
|
}
|
|
|
|
// FlagNew initializes a Flag activity
|
|
func FlagNew(id ID, ob Item) *Flag {
|
|
a := ActivityNew(id, FlagType, ob)
|
|
o := Flag(*a)
|
|
return &o
|
|
}
|
|
|
|
// FollowNew initializes a Follow activity
|
|
func FollowNew(id ID, ob Item) *Follow {
|
|
a := ActivityNew(id, FollowType, ob)
|
|
o := Follow(*a)
|
|
return &o
|
|
}
|
|
|
|
// IgnoreNew initializes an Ignore activity
|
|
func IgnoreNew(id ID, ob Item) *Ignore {
|
|
a := ActivityNew(id, IgnoreType, ob)
|
|
o := Ignore(*a)
|
|
return &o
|
|
}
|
|
|
|
// InviteNew initializes an Invite activity
|
|
func InviteNew(id ID, ob Item) *Invite {
|
|
a := ActivityNew(id, InviteType, ob)
|
|
o := Invite(*a)
|
|
return &o
|
|
}
|
|
|
|
// JoinNew initializes a Join activity
|
|
func JoinNew(id ID, ob Item) *Join {
|
|
a := ActivityNew(id, JoinType, ob)
|
|
o := Join(*a)
|
|
return &o
|
|
}
|
|
|
|
// LeaveNew initializes a Leave activity
|
|
func LeaveNew(id ID, ob Item) *Leave {
|
|
a := ActivityNew(id, LeaveType, ob)
|
|
o := Leave(*a)
|
|
return &o
|
|
}
|
|
|
|
// LikeNew initializes a Like activity
|
|
func LikeNew(id ID, ob Item) *Like {
|
|
a := ActivityNew(id, LikeType, ob)
|
|
o := Like(*a)
|
|
return &o
|
|
}
|
|
|
|
// ListenNew initializes a Listen activity
|
|
func ListenNew(id ID, ob Item) *Listen {
|
|
a := ActivityNew(id, ListenType, ob)
|
|
o := Listen(*a)
|
|
return &o
|
|
}
|
|
|
|
// MoveNew initializes a Move activity
|
|
func MoveNew(id ID, ob Item) *Move {
|
|
a := ActivityNew(id, MoveType, ob)
|
|
o := Move(*a)
|
|
return &o
|
|
}
|
|
|
|
// OfferNew initializes an Offer activity
|
|
func OfferNew(id ID, ob Item) *Offer {
|
|
a := ActivityNew(id, OfferType, ob)
|
|
o := Offer(*a)
|
|
return &o
|
|
}
|
|
|
|
// RejectNew initializes a Reject activity
|
|
func RejectNew(id ID, ob Item) *Reject {
|
|
a := ActivityNew(id, RejectType, ob)
|
|
o := Reject(*a)
|
|
return &o
|
|
}
|
|
|
|
// ReadNew initializes a Read activity
|
|
func ReadNew(id ID, ob Item) *Read {
|
|
a := ActivityNew(id, ReadType, ob)
|
|
o := Read(*a)
|
|
return &o
|
|
}
|
|
|
|
// RemoveNew initializes a Remove activity
|
|
func RemoveNew(id ID, ob Item, trgt Item) *Remove {
|
|
a := ActivityNew(id, RemoveType, ob)
|
|
o := Remove(*a)
|
|
o.Target = trgt
|
|
return &o
|
|
}
|
|
|
|
// TentativeRejectNew initializes a TentativeReject activity
|
|
func TentativeRejectNew(id ID, ob Item) *TentativeReject {
|
|
a := ActivityNew(id, TentativeRejectType, ob)
|
|
o := TentativeReject(*a)
|
|
return &o
|
|
}
|
|
|
|
// TentativeAcceptNew initializes a TentativeAccept activity
|
|
func TentativeAcceptNew(id ID, ob Item) *TentativeAccept {
|
|
a := ActivityNew(id, TentativeAcceptType, ob)
|
|
o := TentativeAccept(*a)
|
|
return &o
|
|
}
|
|
|
|
// UndoNew initializes an Undo activity
|
|
func UndoNew(id ID, ob Item) *Undo {
|
|
a := ActivityNew(id, UndoType, ob)
|
|
o := Undo(*a)
|
|
return &o
|
|
}
|
|
|
|
// UpdateNew initializes an Update activity
|
|
func UpdateNew(id ID, ob Item) *Update {
|
|
a := ActivityNew(id, UpdateType, ob)
|
|
u := Update(*a)
|
|
return &u
|
|
}
|
|
|
|
// ViewNew initializes a View activity
|
|
func ViewNew(id ID, ob Item) *View {
|
|
a := ActivityNew(id, ViewType, ob)
|
|
o := View(*a)
|
|
return &o
|
|
}
|
|
|
|
// ActivityNew initializes a basic activity
|
|
func ActivityNew(id ID, typ ActivityVocabularyType, ob Item) *Activity {
|
|
if !ActivityTypes.Contains(typ) {
|
|
typ = ActivityType
|
|
}
|
|
a := Activity{ID: id, Type: typ}
|
|
a.Name = NaturalLanguageValuesNew()
|
|
a.Content = NaturalLanguageValuesNew()
|
|
|
|
a.Object = ob
|
|
|
|
return &a
|
|
}
|
|
|
|
// UnmarshalJSON decodes an incoming JSON document into the receiver object.
|
|
func (a *Activity) UnmarshalJSON(data []byte) error {
|
|
p := fastjson.Parser{}
|
|
val, err := p.ParseBytes(data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return loadActivity(val, a)
|
|
}
|
|
|
|
// ToActivity
|
|
func ToActivity(it Item) (*Activity, error) {
|
|
switch i := it.(type) {
|
|
case *Activity:
|
|
return i, nil
|
|
case Activity:
|
|
return &i, nil
|
|
case *IntransitiveActivity:
|
|
return (*Activity)(unsafe.Pointer(i)), nil
|
|
case IntransitiveActivity:
|
|
return (*Activity)(unsafe.Pointer(&i)), nil
|
|
case *Question:
|
|
return (*Activity)(unsafe.Pointer(i)), nil
|
|
case Question:
|
|
return (*Activity)(unsafe.Pointer(&i)), nil
|
|
default:
|
|
// NOTE(marius): this is an ugly way of dealing with the interface conversion error: types from different scopes
|
|
typ := reflect.TypeOf(new(Activity))
|
|
if reflect.TypeOf(it).ConvertibleTo(typ) {
|
|
if i, ok := reflect.ValueOf(it).Convert(typ).Interface().(*Activity); ok {
|
|
return i, nil
|
|
}
|
|
}
|
|
}
|
|
return nil, errors.New("unable to convert activity")
|
|
}
|
|
|
|
// MarshalJSON encodes the receiver object to a JSON document.
|
|
func (a Activity) MarshalJSON() ([]byte, error) {
|
|
b := make([]byte, 0)
|
|
write(&b, '{')
|
|
|
|
if !writeActivityJSONValue(&b, a) {
|
|
return nil, nil
|
|
}
|
|
write(&b, '}')
|
|
return b, nil
|
|
}
|
|
|
|
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
|
|
func (a *Activity) UnmarshalBinary(data []byte) error {
|
|
return a.GobDecode(data)
|
|
}
|
|
|
|
// MarshalBinary implements the encoding.BinaryMarshaler interface.
|
|
func (a Activity) MarshalBinary() ([]byte, error) {
|
|
return a.GobEncode()
|
|
}
|
|
|
|
func mapIntransitiveActivityProperties(mm map[string][]byte, a *IntransitiveActivity) (hasData bool, err error) {
|
|
err = OnObject(a, func(o *Object) error {
|
|
hasData, err = mapObjectProperties(mm, o)
|
|
return err
|
|
})
|
|
if a.Actor != nil {
|
|
if mm["actor"], err = gobEncodeItem(a.Actor); err != nil {
|
|
return hasData, err
|
|
}
|
|
hasData = true
|
|
}
|
|
if a.Target != nil {
|
|
if mm["target"], err = gobEncodeItem(a.Target); err != nil {
|
|
return hasData, err
|
|
}
|
|
hasData = true
|
|
}
|
|
if a.Result != nil {
|
|
if mm["result"], err = gobEncodeItem(a.Result); err != nil {
|
|
return hasData, err
|
|
}
|
|
hasData = true
|
|
}
|
|
if a.Instrument != nil {
|
|
if mm["instrument"], err = gobEncodeItem(a.Instrument); err != nil {
|
|
return hasData, err
|
|
}
|
|
hasData = true
|
|
}
|
|
return hasData, err
|
|
}
|
|
|
|
func mapActivityProperties(mm map[string][]byte, a *Activity) (hasData bool, err error) {
|
|
err = OnIntransitiveActivity(a, func(a *IntransitiveActivity) error {
|
|
hasData, err = mapIntransitiveActivityProperties(mm, a)
|
|
return err
|
|
})
|
|
if a.Object != nil {
|
|
if mm["object"], err = gobEncodeItem(a.Object); err != nil {
|
|
return hasData, err
|
|
}
|
|
hasData = true
|
|
}
|
|
return hasData, err
|
|
}
|
|
|
|
// GobEncode
|
|
func (a Activity) GobEncode() ([]byte, error) {
|
|
var mm = make(map[string][]byte)
|
|
hasData, err := mapActivityProperties(mm, &a)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if !hasData {
|
|
return []byte{}, nil
|
|
}
|
|
bb := bytes.Buffer{}
|
|
g := gob.NewEncoder(&bb)
|
|
if err := g.Encode(mm); err != nil {
|
|
return nil, err
|
|
}
|
|
return bb.Bytes(), nil
|
|
}
|
|
|
|
// GobDecode
|
|
func (a *Activity) GobDecode(data []byte) error {
|
|
if len(data) == 0 {
|
|
return nil
|
|
}
|
|
mm, err := gobDecodeObjectAsMap(data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return unmapActivityProperties(mm, a)
|
|
}
|
|
|
|
// Equals verifies if our receiver Object is equals with the "with" Object
|
|
func (a Activity) Equals(with Item) bool {
|
|
result := true
|
|
OnActivity(with, func(w *Activity) error {
|
|
OnObject(a, func(o *Object) error {
|
|
result = o.Equals(w)
|
|
return nil
|
|
})
|
|
if w.Object != nil {
|
|
if !ItemsEqual(a.Object, w.Object) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
if w.Actor != nil {
|
|
if !ItemsEqual(a.Actor, w.Actor) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
if w.Target != nil {
|
|
if !ItemsEqual(a.Target, w.Target) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
if w.Result != nil {
|
|
if !ItemsEqual(a.Result, w.Result) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
if w.Origin != nil {
|
|
if !ItemsEqual(a.Origin, w.Origin) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
if w.Result != nil {
|
|
if !ItemsEqual(a.Result, w.Result) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
if w.Instrument != nil {
|
|
if !ItemsEqual(a.Instrument, w.Instrument) {
|
|
result = false
|
|
return nil
|
|
}
|
|
}
|
|
return nil
|
|
})
|
|
return result
|
|
}
|