feat(MediaServer): add support for discord author and attachment URLs

protocol/messenger.go

@@ -14,6 +14,7 @@ import (
 	"math/rand"
 	"os"
 	"reflect"
+	"strings"
 	"sync"
 	"time"
 
@@ -4164,6 +4165,35 @@ func (m *Messenger) prepareMessage(msg *common.Message, s *server.MediaServer) {
 	if msg.ContentType == protobuf.ChatMessage_IMAGE {
 		msg.ImageLocalURL = s.MakeImageURL(msg.ID)
 	}
+	if msg.ContentType == protobuf.ChatMessage_DISCORD_MESSAGE {
+
+		dm := msg.GetDiscordMessage()
+		exists, err := m.persistence.HasDiscordMessageAuthorImagePayload(dm.Author.Id)
+		if err != nil {
+			return
+		}
+
+		if exists {
+			dm.Author.LocalUrl = s.MakeDiscordAuthorAvatarURL(dm.Author.Id)
+		}
+
+		for idx, attachment := range dm.Attachments {
+			if strings.Contains(attachment.ContentType, "image") {
+				hasPayload, err := m.persistence.HasDiscordMessageAttachmentPayload(attachment.Id)
+				if err != nil {
+					m.logger.Error("failed to check if message attachment exist", zap.Error(err))
+					continue
+				}
+				if hasPayload {
+					localURL := s.MakeDiscordAttachmentURL(dm.Id, attachment.Id)
+					dm.Attachments[idx].LocalUrl = localURL
+				}
+			}
+		}
+		msg.Payload = &protobuf.ChatMessage_DiscordMessage{
+			DiscordMessage: dm,
+		}
+	}
 	if msg.ContentType == protobuf.ChatMessage_AUDIO {
 		msg.AudioLocalURL = s.MakeAudioURL(msg.ID)
 	}

server/handlers.go

@@ -30,6 +30,8 @@ const (
 	imagesPath             = basePath + "/images"
 	audioPath              = basePath + "/audio"
 	ipfsPath               = "/ipfs"
+	discordAuthorsPath     = "/discord/authors"
+	discordAttachmentsPath = basePath + "/discord/attachments"
 
 	// Handler routes for pairing
 	pairingBase      = "/pairing"
@@ -236,6 +238,79 @@ func handleIdenticon(logger *zap.Logger) http.HandlerFunc {
 	}
 }
 
+func handleDiscordAuthorAvatar(db *sql.DB, logger *zap.Logger) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		authorIDs, ok := r.URL.Query()["authorId"]
+		if !ok || len(authorIDs) == 0 {
+			logger.Error("no authorIDs")
+			return
+		}
+		authorID := authorIDs[0]
+
+		var image []byte
+		err := db.QueryRow(`SELECT avatar_image_payload FROM discord_message_authors WHERE id = ?`, authorID).Scan(&image)
+		if err != nil {
+			logger.Error("failed to find image", zap.Error(err))
+			return
+		}
+		if len(image) == 0 {
+			logger.Error("empty image")
+			return
+		}
+		mime, err := images.ImageMime(image)
+		if err != nil {
+			logger.Error("failed to get mime", zap.Error(err))
+		}
+
+		w.Header().Set("Content-Type", mime)
+		w.Header().Set("Cache-Control", "no-store")
+
+		_, err = w.Write(image)
+		if err != nil {
+			logger.Error("failed to write image", zap.Error(err))
+		}
+	}
+}
+
+func handleDiscordAttachment(db *sql.DB, logger *zap.Logger) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		messageIDs, ok := r.URL.Query()["messageId"]
+		if !ok || len(messageIDs) == 0 {
+			logger.Error("no messageID")
+			return
+		}
+		attachmentIDs, ok := r.URL.Query()["attachmentId"]
+		if !ok || len(attachmentIDs) == 0 {
+			logger.Error("no attachmentID")
+			return
+		}
+		messageID := messageIDs[0]
+		attachmentID := attachmentIDs[0]
+		var image []byte
+		err := db.QueryRow(`SELECT payload FROM discord_message_attachments WHERE discord_message_id = ? AND id = ?`, messageID, attachmentID).Scan(&image)
+		if err != nil {
+			logger.Error("failed to find image", zap.Error(err))
+			return
+		}
+		if len(image) == 0 {
+			logger.Error("empty image")
+			return
+		}
+		mime, err := images.ImageMime(image)
+		if err != nil {
+			logger.Error("failed to get mime", zap.Error(err))
+		}
+
+		w.Header().Set("Content-Type", mime)
+		w.Header().Set("Cache-Control", "no-store")
+
+		_, err = w.Write(image)
+		if err != nil {
+			logger.Error("failed to write image", zap.Error(err))
+		}
+	}
+}
+
 func handleImage(db *sql.DB, logger *zap.Logger) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		messageIDs, ok := r.URL.Query()["messageId"]

server/server_media.go

@@ -39,6 +39,8 @@ func NewMediaServer(db *sql.DB, downloader *ipfs.Downloader, multiaccountsDB *mu
 		ipfsPath:               handleIPFS(s.downloader, s.logger),
 		accountImagesPath:      handleAccountImages(s.multiaccountsDB, s.logger),
 		contactImagesPath:      handleContactImages(s.db, s.logger),
+		discordAuthorsPath:     handleDiscordAuthorAvatar(s.db, s.logger),
+		discordAttachmentsPath: handleDiscordAttachment(s.db, s.logger),
 	})
 
 	return s, nil
@@ -66,6 +68,22 @@ func (s *MediaServer) MakeImageURL(id string) string {
 	return u.String()
 }
 
+func (s *MediaServer) MakeDiscordAuthorAvatarURL(authorID string) string {
+	u := s.MakeBaseURL()
+	u.Path = discordAuthorsPath
+	u.RawQuery = url.Values{"authorId": {authorID}}.Encode()
+
+	return u.String()
+}
+
+func (s *MediaServer) MakeDiscordAttachmentURL(messageID string, id string) string {
+	u := s.MakeBaseURL()
+	u.Path = discordAttachmentsPath
+	u.RawQuery = url.Values{"messageId": {messageID}, "attachmentId": {id}}.Encode()
+
+	return u.String()
+}
+
 func (s *MediaServer) MakeAudioURL(id string) string {
 	u := s.MakeBaseURL()
 	u.Path = audioPath