mirror of https://github.com/jlelse/GoBlog
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98 lines
2.3 KiB
98 lines
2.3 KiB
package main
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import (
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"bytes"
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"context"
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"encoding/gob"
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"fmt"
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"io"
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"log"
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"net/http"
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"time"
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ap "github.com/go-ap/activitypub"
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"github.com/go-ap/jsonld"
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"go.goblog.app/app/pkgs/bufferpool"
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"go.goblog.app/app/pkgs/contenttype"
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)
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type apRequest struct {
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BlogIri, To string
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Activity []byte
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Try int
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}
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func (a *goBlog) initAPSendQueue() {
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a.listenOnQueue("ap", 30*time.Second, func(qi *queueItem, dequeue func(), reschedule func(time.Duration)) {
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var r apRequest
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if err := gob.NewDecoder(bytes.NewReader(qi.content)).Decode(&r); err != nil {
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log.Println("activitypub queue:", err.Error())
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dequeue()
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return
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}
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if err := a.apSendSigned(r.BlogIri, r.To, r.Activity); err != nil {
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if r.Try++; r.Try < 20 {
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// Try it again
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buf := bufferpool.Get()
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_ = r.encode(buf)
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qi.content = buf.Bytes()
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reschedule(time.Duration(r.Try) * 10 * time.Minute)
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bufferpool.Put(buf)
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return
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}
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log.Println("AP request failed for the 20th time:", r.To)
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_ = a.db.apRemoveInbox(r.To)
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}
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dequeue()
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})
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}
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func (a *goBlog) apQueueSendSigned(blogIri, to string, activity any) error {
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body, err := jsonld.WithContext(jsonld.IRI(ap.ActivityBaseURI), jsonld.IRI(ap.SecurityContextURI)).Marshal(activity)
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if err != nil {
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return err
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}
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buf := bufferpool.Get()
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defer bufferpool.Put(buf)
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if err := (&apRequest{
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BlogIri: blogIri,
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To: to,
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Activity: body,
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}).encode(buf); err != nil {
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return err
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}
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return a.enqueue("ap", buf.Bytes(), time.Now())
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}
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func (r *apRequest) encode(w io.Writer) error {
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return gob.NewEncoder(w).Encode(r)
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}
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func (a *goBlog) apSendSigned(blogIri, to string, activity []byte) error {
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// Create request context with timeout
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ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
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defer cancel()
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// Create request
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r, err := http.NewRequestWithContext(ctx, http.MethodPost, to, bytes.NewReader(activity))
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if err != nil {
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return err
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}
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r.Header.Set("Accept-Charset", "utf-8")
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r.Header.Set("Accept", contenttype.ASUTF8)
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r.Header.Set(contentType, contenttype.ASUTF8)
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// Sign request
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if err = a.signRequest(r, blogIri); err != nil {
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return err
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}
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// Do request
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resp, err := a.httpClient.Do(r)
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if err != nil {
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return err
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}
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_ = resp.Body.Close()
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if !apRequestIsSuccess(resp.StatusCode) {
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return fmt.Errorf("signed request failed with status %d", resp.StatusCode)
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}
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return nil
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}
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