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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package ap
import (
"github.com/superseriousbusiness/activity/pub"
"github.com/superseriousbusiness/activity/streams"
)
// NormalizeActivityObject normalizes the 'object'.'content' field of the given Activity.
//
// The rawActivity map should the freshly deserialized json representation of the Activity.
//
// This function is a noop if the type passed in is anything except a Create with a Statusable as its Object.
func NormalizeActivityObject(activity pub.Activity, rawActivity map[string]interface{}) {
if activity.GetTypeName() != ActivityCreate {
// Only interested in Create right now.
return
}
withObject, ok := activity.(WithObject)
if !ok {
// Create was not a WithObject.
return
}
createObject := withObject.GetActivityStreamsObject()
if createObject == nil {
// No object set.
return
}
if createObject.Len() != 1 {
// Not interested in Object arrays.
return
}
// We now know length is 1 so get the first
// item from the iter. We need this to be
// a Statusable if we're to continue.
i := createObject.At(0)
if i == nil {
// This is awkward.
return
}
t := i.GetType()
if t == nil {
// This is also awkward.
return
}
statusable, ok := t.(Statusable)
if !ok {
// Object is not Statusable;
// we're not interested.
return
}
object, ok := rawActivity["object"]
if !ok {
// No object in raw map.
return
}
rawStatusable, ok := object.(map[string]interface{})
if !ok {
// Object wasn't a json object.
return
}
// Pass in the statusable and its raw JSON representation.
NormalizeStatusableContent(statusable, rawStatusable)
}
// NormalizeStatusableContent replaces the Content of the given statusable
// with the raw 'content' value from the given json object map.
//
// noop if there was no content in the json object map or the content was
// not a plain string.
func NormalizeStatusableContent(statusable Statusable, rawStatusable map[string]interface{}) {
content, ok := rawStatusable["content"]
if !ok {
// No content in rawStatusable.
// TODO: In future we might also
// look for "contentMap" property.
return
}
rawContent, ok := content.(string)
if !ok {
// Not interested in content arrays.
return
}
// Set normalized content property from the raw string; this
// will replace any existing content property on the statusable.
contentProp := streams.NewActivityStreamsContentProperty()
contentProp.AppendXMLSchemaString(rawContent)
statusable.SetActivityStreamsContent(contentProp)
}
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