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net/smtp: close conn in SendMail; add Client.Close method

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R=rsc, dave, bradfitz
CC=golang-dev
https://golang.org/cl/10082044
This commit is contained in:
Alex Jin 2013-06-17 16:53:27 -07:00 committed by Brad Fitzpatrick
parent beb6efa0fb
commit 83db738786
2 changed files with 12 additions and 2 deletions
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11
src/pkg/net/smtp/smtp.go
View File

@ -41,12 +41,13 @@ type Client struct {
} }
// Dial returns a new Client connected to an SMTP server at addr. // Dial returns a new Client connected to an SMTP server at addr.
// The addr must include a port number.
func Dial(addr string) (*Client, error) { func Dial(addr string) (*Client, error) {
conn, err := net.Dial("tcp", addr) conn, err := net.Dial("tcp", addr)
if err != nil { if err != nil {
return nil, err return nil, err
} }
host := addr[:strings.Index(addr, ":")] host, _, _ := net.SplitHostPort(addr)
return NewClient(conn, host) return NewClient(conn, host)
} }
@ -63,6 +64,11 @@ func NewClient(conn net.Conn, host string) (*Client, error) {
return c, nil return c, nil
} }
// Close closes the connection.
func (c *Client) Close() error {
return c.Text.Close()
}
// hello runs a hello exchange if needed. // hello runs a hello exchange if needed.
func (c *Client) hello() error { func (c *Client) hello() error {
if !c.didHello { if !c.didHello {
@ -264,7 +270,8 @@ func SendMail(addr string, a Auth, from string, to []string, msg []byte) error {
if err != nil { if err != nil {
return err return err
} }
if err := c.hello(); err != nil { defer c.Close()
if err = c.hello(); err != nil {
return err return err
} }
if ok, _ := c.Extension("STARTTLS"); ok { if ok, _ := c.Extension("STARTTLS"); ok {

3
src/pkg/net/smtp/smtp_test.go
View File

@ -238,6 +238,7 @@ func TestNewClient(t *testing.T) {
if err != nil { if err != nil {
t.Fatalf("NewClient: %v\n(after %v)", err, out()) t.Fatalf("NewClient: %v\n(after %v)", err, out())
} }
defer c.Close()
if ok, args := c.Extension("aUtH"); !ok || args != "LOGIN PLAIN" { if ok, args := c.Extension("aUtH"); !ok || args != "LOGIN PLAIN" {
t.Fatalf("Expected AUTH supported") t.Fatalf("Expected AUTH supported")
} }
@ -278,6 +279,7 @@ func TestNewClient2(t *testing.T) {
if err != nil { if err != nil {
t.Fatalf("NewClient: %v", err) t.Fatalf("NewClient: %v", err)
} }
defer c.Close()
if ok, _ := c.Extension("DSN"); ok { if ok, _ := c.Extension("DSN"); ok {
t.Fatalf("Shouldn't support DSN") t.Fatalf("Shouldn't support DSN")
} }
@ -323,6 +325,7 @@ func TestHello(t *testing.T) {
if err != nil { if err != nil {
t.Fatalf("NewClient: %v", err) t.Fatalf("NewClient: %v", err)
} }
defer c.Close()
c.localName = "customhost" c.localName = "customhost"
err = nil err = nil