First version of working redaction with passing integration tests

client/lib/lib.go

@@ -1101,3 +1101,70 @@ func EncryptAndMarshal(config ClientConfig, entry *data.HistoryEntry) ([]byte, e
 	}
 	return jsonValue, nil
 }
+
+func Redact(db *gorm.DB, query string, force bool) error {
+	tx, err := data.MakeWhereQueryFromSearch(db, query)
+	if err != nil {
+		return err
+	}
+	var historyEntries []*data.HistoryEntry
+	res := tx.Find(&historyEntries)
+	if res.Error != nil {
+		return res.Error
+	}
+	if force {
+		fmt.Printf("Permanently deleting %d entries", len(historyEntries))
+	} else {
+		// TODO: Find a way to test the prompting
+		fmt.Printf("This will permanently delete %d entries, are you sure? [y/N]", len(historyEntries))
+		reader := bufio.NewReader(os.Stdin)
+		resp, err := reader.ReadString('\n')
+		if err != nil {
+			return fmt.Errorf("failed to read response: %v", err)
+		}
+		if strings.TrimSpace(resp) != "y" {
+			fmt.Printf("Aborting delete per user response of %#v\n", strings.TrimSpace(resp))
+			return nil
+		}
+	}
+	tx, err = data.MakeWhereQueryFromSearch(db, query)
+	if err != nil {
+		return err
+	}
+	res = tx.Delete(&data.HistoryEntry{})
+	if res.Error != nil {
+		return res.Error
+	}
+	if res.RowsAffected != int64(len(historyEntries)) {
+		return fmt.Errorf("DB deleted %d rows, when we only expected to delete %d rows, something may have gone wrong", res.RowsAffected, len(historyEntries))
+	}
+	err = deleteOnRemoteInstances(historyEntries)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func deleteOnRemoteInstances(historyEntries []*data.HistoryEntry) error {
+	config, err := GetConfig()
+	if err != nil {
+		return err
+	}
+
+	var deletionRequest shared.DeletionRequest
+	deletionRequest.SendTime = time.Now()
+	deletionRequest.UserId = data.UserId(config.UserSecret)
+
+	for _, entry := range historyEntries {
+		deletionRequest.Messages.Ids = append(deletionRequest.Messages.Ids, shared.MessageIdentifier{Date: entry.EndTime, DeviceId: entry.DeviceId})
+	}
+	data, err := json.Marshal(deletionRequest)
+	if err != nil {
+		return err
+	}
+	_, err = ApiPost("/api/v1/add-deletion-request", "application/json", data)
+	if err != nil {
+		return fmt.Errorf("failed to send deletion request to backend service, this may cause commands to not get deleted on other instances of hishtory: %v", err)
+	}
+	return nil
+}