forgejo/routers/api/v1/activitypub/response.go

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2023-11-06 18:29:48 +01:00
// Copyright 2023 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package activitypub
import (
"fmt"
"net/http"
"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/forgefed"
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"code.gitea.io/gitea/modules/activitypub"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
ap "github.com/go-ap/activitypub"
"github.com/go-ap/jsonld"
)
// Respond with a ActivityStreams Collection
func responseCollection(ctx *context.APIContext, iri string, listOptions db.ListOptions, items []string, count int64) {
collection := ap.OrderedCollectionNew(ap.IRI(iri))
collection.First = ap.IRI(iri + "?page=1")
collection.TotalItems = uint(count)
if listOptions.Page == 0 {
response(ctx, collection)
return
}
page := ap.OrderedCollectionPageNew(collection)
page.ID = ap.IRI(fmt.Sprintf("%s?page=%d", iri, listOptions.Page))
if listOptions.Page > 1 {
page.Prev = ap.IRI(fmt.Sprintf("%s?page=%d", iri, listOptions.Page-1))
}
if listOptions.Page*listOptions.PageSize < int(count) {
page.Next = ap.IRI(fmt.Sprintf("%s?page=%d", iri, listOptions.Page+1))
}
for _, item := range items {
err := page.OrderedItems.Append(ap.IRI(item))
if err != nil {
ctx.ServerError("Append", err)
}
}
response(ctx, page)
}
// Respond with an ActivityStreams object
func response(ctx *context.APIContext, v interface{}) {
binary, err := jsonld.WithContext(
jsonld.IRI(ap.ActivityBaseURI),
jsonld.IRI(ap.SecurityContextURI),
jsonld.IRI(forgefed.ForgeFedNamespaceURI),
).Marshal(v)
if err != nil {
ctx.ServerError("Marshal", err)
return
}
ctx.Resp.Header().Add("Content-Type", activitypub.ActivityStreamsContentType)
ctx.Resp.WriteHeader(http.StatusOK)
if _, err = ctx.Resp.Write(binary); err != nil {
log.Error("write to resp err: %v", err)
}
}