From 14963269dc63bf038163a851e521d6815ab5f514 Mon Sep 17 00:00:00 2001
From: Julio Capote <jcapote@gmail.com>
Date: Sat, 7 Jan 2023 17:54:38 -0500
Subject: avatar support

---
 registry/registry.go | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 56 insertions(+), 1 deletion(-)

(limited to 'registry')

diff --git a/registry/registry.go b/registry/registry.go
index aa61d58..e50c6a5 100644
--- a/registry/registry.go
+++ b/registry/registry.go
@@ -9,6 +9,7 @@ import (
 	"encoding/pem"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strings"
@@ -47,6 +48,10 @@ func NewRegistry(cfg config.Config, persister *models.Persister, log *zap.Sugare
 		if err != nil {
 			return nil, err
 		}
+		err = persistAvatarIfFound(v, persister)
+		if err != nil {
+			return nil, err
+		}
 	}
 	reg.delivery, err = delivery.NewSigned(persister)
 	if err != nil {
@@ -67,6 +72,36 @@ func generateKeypairIfNeeded(v config.Handler, p *models.Persister) error {
 	return nil
 }
 
+func persistAvatarIfFound(v config.Handler, p *models.Persister) error {
+	if v.AvatarUrl == "" || v.AvatarContentType == "" {
+		return nil
+	}
+	resp, err := http.Get(v.AvatarUrl)
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("request to avatarUrl %s failed", v.AvatarUrl)
+	}
+	contentType := resp.Header.Get("content-type")
+	if contentType != v.AvatarContentType {
+		return fmt.Errorf("avatarUrl response content-type '%s' does match avatarContentType '%s'", contentType, v.AvatarContentType)
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	if len(body) == 0 {
+		return fmt.Errorf("avatarUrl response was empty")
+	}
+	kp, err := models.CreateAvatar(v, v.AvatarContentType, body)
+	if err != nil {
+		return err
+	}
+	err = p.Store(kp)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func (r *Registry) Actor(name string) (map[string]interface{}, error) {
 	handler := r.findByName(name)
 	if handler == nil {
@@ -91,7 +126,27 @@ func (r *Registry) Actor(name string) (map[string]interface{}, error) {
 			Bytes: x509.MarshalPKCS1PublicKey(&privKey.PublicKey),
 		},
 	)
-	return views.RenderActor(handler.handlerCfg.Name, r.cfg.Domain, string(pemdata))
+	return views.RenderActor(handler.handlerCfg.Name, r.cfg.Domain, string(pemdata), handler.handlerCfg.AvatarContentType)
+}
+
+func (r *Registry) ActorAvatar(name string) ([]byte, string, error) {
+	handler := r.findByName(name)
+	if handler == nil {
+		return nil, "", nil
+	}
+	aso := models.NewAvatar(handler.handlerCfg)
+	result, err := r.persister.Find(aso)
+	if err != nil {
+		return nil, "", err
+	}
+	buf := bytes.NewBuffer(result)
+	dec := gob.NewDecoder(buf)
+	var avatar models.Avatar
+	err = dec.Decode(&avatar)
+	if err != nil {
+		return nil, "", err
+	}
+	return avatar.Bytes, handler.handlerCfg.AvatarContentType, nil
 }
 
 func (r *Registry) OutboxCollection(name string) (map[string]interface{}, error) {
-- 
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