Forked the emersion/go-imap v1 project.

imapclient/append.go

@@ -0,0 +1,58 @@
+package imapclient
+
+import (
+	"io"
+
+	"github.com/emersion/go-imap/v2"
+	"github.com/emersion/go-imap/v2/internal"
+)
+
+// Append sends an APPEND command.
+//
+// The caller must call AppendCommand.Close.
+//
+// The options are optional.
+func (c *Client) Append(mailbox string, size int64, options *imap.AppendOptions) *AppendCommand {
+	cmd := &AppendCommand{}
+	cmd.enc = c.beginCommand("APPEND", cmd)
+	cmd.enc.SP().Mailbox(mailbox).SP()
+	if options != nil && len(options.Flags) > 0 {
+		cmd.enc.List(len(options.Flags), func(i int) {
+			cmd.enc.Flag(options.Flags[i])
+		}).SP()
+	}
+	if options != nil && !options.Time.IsZero() {
+		cmd.enc.String(options.Time.Format(internal.DateTimeLayout)).SP()
+	}
+	// TODO: literal8 for BINARY
+	// TODO: UTF8 data ext for UTF8=ACCEPT, with literal8
+	cmd.wc = cmd.enc.Literal(size)
+	return cmd
+}
+
+// AppendCommand is an APPEND command.
+//
+// Callers must write the message contents, then call Close.
+type AppendCommand struct {
+	commandBase
+	enc  *commandEncoder
+	wc   io.WriteCloser
+	data imap.AppendData
+}
+
+func (cmd *AppendCommand) Write(b []byte) (int, error) {
+	return cmd.wc.Write(b)
+}
+
+func (cmd *AppendCommand) Close() error {
+	err := cmd.wc.Close()
+	if cmd.enc != nil {
+		cmd.enc.end()
+		cmd.enc = nil
+	}
+	return err
+}
+
+func (cmd *AppendCommand) Wait() (*imap.AppendData, error) {
+	return &cmd.data, cmd.wait()
+}