59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package activitypub
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/rsa"
|
|
"crypto/sha256"
|
|
"encoding/base64"
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/Songmu/go-httpdate"
|
|
"github.com/yukimochi/httpsig"
|
|
)
|
|
|
|
// UaString : Use for User-Agent
|
|
var UaString = os.Getenv("RELAY_SERVICENAME") + " (golang net/http; Activity-Relay v0.2.0rc2; " + os.Getenv("RELAY_DOMAIN") + ")"
|
|
|
|
func appendSignature(request *http.Request, body *[]byte, KeyID string, publicKey *rsa.PrivateKey) error {
|
|
hash := sha256.New()
|
|
hash.Write(*body)
|
|
b := hash.Sum(nil)
|
|
request.Header.Set("Digest", "SHA-256="+base64.StdEncoding.EncodeToString(b))
|
|
request.Header.Set("Host", request.Host)
|
|
|
|
signer, _, err := httpsig.NewSigner([]httpsig.Algorithm{httpsig.RSA_SHA256}, []string{httpsig.RequestTarget, "Host", "Date", "Digest", "Content-Type"}, httpsig.Signature)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = signer.SignRequest(publicKey, KeyID, request)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// SendActivity : Send ActivityPub activity
|
|
func SendActivity(inboxURL string, KeyID string, body []byte, publicKey *rsa.PrivateKey) error {
|
|
req, _ := http.NewRequest("POST", inboxURL, bytes.NewBuffer(body))
|
|
req.Header.Set("Content-Type", "application/activity+json, application/ld+json")
|
|
req.Header.Set("User-Agent", UaString)
|
|
req.Header.Set("Date", httpdate.Time2Str(time.Now()))
|
|
appendSignature(req, &body, KeyID, publicKey)
|
|
client := &http.Client{Timeout: time.Duration(5) * time.Second}
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fmt.Println(inboxURL, resp.StatusCode)
|
|
if resp.StatusCode/100 != 2 {
|
|
return errors.New(resp.Status)
|
|
}
|
|
|
|
return nil
|
|
}
|