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Implement HEAD command
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032d238b9f
commit
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@ -25,7 +25,7 @@
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- :x: `IHAVE`
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- :construction: Article retrieving
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- :heavy_check_mark: `ARTICLE`
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- :x: `HEAD`
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- :heavy_check_mark: `HEAD`
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- :x: `BODY`
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- :x: `STAT`
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- :x: Articles overview
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@ -57,6 +57,7 @@ const (
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CommandPost = "POST"
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CommandListGroup = "LISTGROUP"
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CommandArticle = "ARTICLE"
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CommandHead = "HEAD"
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)
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const (
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@ -36,6 +36,7 @@ func NewHandler(b backend.StorageBackend, serverDomain string) *Handler {
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protocol.CommandPost: h.handlePost,
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protocol.CommandListGroup: h.handleListgroup,
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protocol.CommandArticle: h.handleArticle,
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protocol.CommandHead: h.handleHead,
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}
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h.serverDomain = serverDomain
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return h
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@ -385,6 +386,7 @@ func (h *Handler) handleListgroup(s *Session, arguments []string, id uint) error
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return dw.Close()
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}
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// TODO refactor this, because it's mostly duplicate of ARTICLE handler function
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func (h *Handler) handleArticle(s *Session, arguments []string, id uint) error {
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s.tconn.StartResponse(id)
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defer s.tconn.EndResponse(id)
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@ -455,6 +457,70 @@ func (h *Handler) handleArticle(s *Session, arguments []string, id uint) error {
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return dw.Close()
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}
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func (h *Handler) handleHead(s *Session, arguments []string, id uint) error {
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s.tconn.StartResponse(id)
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defer s.tconn.EndResponse(id)
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if len(arguments) == 0 && s.currentArticle == nil {
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return s.tconn.PrintfLine(protocol.NNTPResponse{Code: 420, Message: "No current article selected"}.String())
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}
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if len(arguments) > 1 {
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return s.tconn.PrintfLine(protocol.ErrSyntaxError.String())
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}
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getByArticleNum := true
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num, err := strconv.Atoi(arguments[0])
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if err != nil {
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getByArticleNum = false
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}
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if getByArticleNum && s.currentGroup == nil {
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return s.tconn.PrintfLine(protocol.NNTPResponse{Code: 412, Message: "No newsgroup selected"}.String())
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}
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var a models.Article
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if getByArticleNum {
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a, err = h.backend.GetArticleByNumber(s.currentGroup, num)
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if err != nil {
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if err == sql.ErrNoRows {
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return s.tconn.PrintfLine(protocol.NNTPResponse{Code: 423, Message: "No article with that number"}.String())
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} else {
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return err
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}
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}
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} else {
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a, err = h.backend.GetArticle(arguments[0])
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if err != nil {
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if err == sql.ErrNoRows {
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return s.tconn.PrintfLine(protocol.NNTPResponse{Code: 430, Message: "No Such Article Found"}.String())
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} else {
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return err
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}
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}
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}
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s.currentArticle = &a
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m := utils.NewMessage()
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for k, v := range a.Header {
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m.SetHeader(k, v...)
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}
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dw := s.tconn.DotWriter()
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_, err = dw.Write([]byte(protocol.NNTPResponse{Code: 221, Message: fmt.Sprintf("%d %s", num, a.Header.Get("Message-ID"))}.String() + protocol.CRLF))
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if err != nil {
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return err
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}
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_, err = m.WriteTo(dw)
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if err != nil {
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return err
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}
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return dw.Close()
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}
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func (h *Handler) Handle(s *Session, message string, id uint) error {
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splittedMessage := strings.Split(message, " ")
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for i, v := range splittedMessage {
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