mirror of
https://github.com/wneessen/go-mail.git
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Merge pull request #47 from wneessen/DSN
Implemented DSNs as described in RFC 1891
This commit is contained in:
commit
f4cdc61dd0
3 changed files with 477 additions and 27 deletions
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@ -43,7 +43,7 @@ Some of the features of this library:
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* [X] Support for attachments and inline embeds (from file system, `io.Reader` or `embed.FS`)
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* [X] Support for different encodings
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* [X] Support sending mails via a local sendmail command
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* [X] Support for requestng MDNs
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* [X] Support for requestng MDNs (RFC 8098) and DSNs (RFC 1891)
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* [X] Message object satisfies `io.WriteTo` and `io.Reader` interfaces
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* [X] Support for Go's `html/template` and `text/template` (as message body, alternative part or attachment/emebed)
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* [X] Output to file support which allows storing mail messages as e. g. `.eml` files to disk to open them in a MUA
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271
client.go
271
client.go
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@ -33,14 +33,89 @@ const (
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DefaultTLSMinVersion = tls.VersionTLS12
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)
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// DSNMailReturnOption is a type to define which MAIL RET option is used when a DSN
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// is requested
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type DSNMailReturnOption string
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// DSNRcptNotifyOption is a type to define which RCPT NOTIFY option is used when a DSN
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// is requested
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type DSNRcptNotifyOption string
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const (
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// DSNMailReturnHeadersOnly requests that only the headers of the message be returned.
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// See: https://www.rfc-editor.org/rfc/rfc1891#section-5.3
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DSNMailReturnHeadersOnly DSNMailReturnOption = "HDRS"
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// DSNMailReturnFull requests that the entire message be returned in any "failed"
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// delivery status notification issued for this recipient
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// See: https://www.rfc-editor.org/rfc/rfc1891#section-5.3
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DSNMailReturnFull DSNMailReturnOption = "FULL"
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// DSNRcptNotifyNever requests that a DSN not be returned to the sender under
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// any conditions.
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// See: https://www.rfc-editor.org/rfc/rfc1891#section-5.1
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DSNRcptNotifyNever DSNRcptNotifyOption = "NEVER"
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// DSNRcptNotifySuccess requests that a DSN be issued on successful delivery
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// See: https://www.rfc-editor.org/rfc/rfc1891#section-5.1
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DSNRcptNotifySuccess DSNRcptNotifyOption = "SUCCESS"
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// DSNRcptNotifyFailure requests that a DSN be issued on delivery failure
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// See: https://www.rfc-editor.org/rfc/rfc1891#section-5.1
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DSNRcptNotifyFailure DSNRcptNotifyOption = "FAILURE"
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// DSNRcptNotifyDelay indicates the sender's willingness to receive
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// "delayed" DSNs. Delayed DSNs may be issued if delivery of a message has
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// been delayed for an unusual amount of time (as determined by the MTA at
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// which the message is delayed), but the final delivery status (whether
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// successful or failure) cannot be determined. The absence of the DELAY
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// keyword in a NOTIFY parameter requests that a "delayed" DSN NOT be
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// issued under any conditions.
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// See: https://www.rfc-editor.org/rfc/rfc1891#section-5.1
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DSNRcptNotifyDelay DSNRcptNotifyOption = "DELAY"
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)
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// Client is the SMTP client struct
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type Client struct {
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// co is the net.Conn that the smtp.Client is based on
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co net.Conn
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// Timeout for the SMTP server connection
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cto time.Duration
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// dsn indicates that we want to use DSN for the Client
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dsn bool
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// dsnmrtype defines the DSNMailReturnOption in case DSN is enabled
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dsnmrtype DSNMailReturnOption
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// dsnrntype defines the DSNRcptNotifyOption in case DSN is enabled
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dsnrntype []string
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// enc indicates if a Client connection is encrypted or not
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enc bool
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// HELO/EHLO string for the greeting the target SMTP server
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helo string
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// Hostname of the target SMTP server cto connect cto
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host string
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// pass is the corresponding SMTP AUTH password
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pass string
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// Port of the SMTP server cto connect cto
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port int
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// sa is a pointer to smtp.Auth
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sa smtp.Auth
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// satype represents the authentication type for SMTP AUTH
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satype SMTPAuthType
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// sc is the smtp.Client that is set up when using the Dial*() methods
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sc *smtp.Client
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// Use SSL for the connection
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ssl bool
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@ -50,32 +125,8 @@ type Client struct {
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// tlsconfig represents the tls.Config setting for the STARTTLS connection
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tlsconfig *tls.Config
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// Timeout for the SMTP server connection
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cto time.Duration
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// HELO/EHLO string for the greeting the target SMTP server
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helo string
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// enc indicates if a Client connection is encrypted or not
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enc bool
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// user is the SMTP AUTH username
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user string
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// pass is the corresponding SMTP AUTH password
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pass string
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// satype represents the authentication type for SMTP AUTH
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satype SMTPAuthType
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// co is the net.Conn that the smtp.Client is based on
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co net.Conn
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// sa is a pointer to smtp.Auth
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sa smtp.Auth
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// sc is the smtp.Client that is set up when using the Dial*() methods
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sc *smtp.Client
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}
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// Option returns a function that can be used for grouping Client options
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@ -107,6 +158,20 @@ var (
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// ErrServerNoUnencoded should be used when 8BIT encoding is selected for a message, but
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// the server does not offer 8BITMIME mode
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ErrServerNoUnencoded = errors.New("message is 8bit unencoded, but server does not support 8BITMIME")
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// ErrInvalidDSNMailReturnOption should be used when an invalid option is provided for the
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// DSNMailReturnOption in WithDSN
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ErrInvalidDSNMailReturnOption = errors.New("DSN mail return option can only be HDRS or FULL")
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// ErrInvalidDSNRcptNotifyOption should be used when an invalid option is provided for the
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// DSNRcptNotifyOption in WithDSN
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ErrInvalidDSNRcptNotifyOption = errors.New("DSN rcpt notify option can only be: NEVER, " +
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"SUCCESS, FAILURE or DELAY")
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// ErrInvalidDSNRcptNotifyCombination should be used when an invalid option is provided for the
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// DSNRcptNotifyOption in WithDSN
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ErrInvalidDSNRcptNotifyCombination = errors.New("DSN rcpt notify option NEVER cannot be " +
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"combined with any of SUCCESS, FAILURE or DELAY")
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)
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// NewClient returns a new Session client object
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@ -234,6 +299,72 @@ func WithPassword(p string) Option {
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}
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}
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// WithDSN enables the Client to request DSNs (if the server supports it)
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// as described in the RFC 1891 and set defaults for DSNMailReturnOption
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// to DSNMailReturnFull and DSNRcptNotifyOption to DSNRcptNotifySuccess
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// and DSNRcptNotifyFailure
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func WithDSN() Option {
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return func(c *Client) error {
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c.dsn = true
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c.dsnmrtype = DSNMailReturnFull
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c.dsnrntype = []string{string(DSNRcptNotifyFailure), string(DSNRcptNotifySuccess)}
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return nil
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}
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}
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// WithDSNMailReturnType enables the Client to request DSNs (if the server supports it)
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// as described in the RFC 1891 and set the MAIL FROM Return option type to the
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// given DSNMailReturnOption
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// See: https://www.rfc-editor.org/rfc/rfc1891
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func WithDSNMailReturnType(mro DSNMailReturnOption) Option {
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return func(c *Client) error {
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switch mro {
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case DSNMailReturnHeadersOnly:
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case DSNMailReturnFull:
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default:
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return ErrInvalidDSNMailReturnOption
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}
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c.dsn = true
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c.dsnmrtype = mro
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return nil
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}
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}
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// WithDSNRcptNotifyType enables the Client to request DSNs as described in the RFC 1891
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// and sets the RCPT TO notify options to the given list of DSNRcptNotifyOption
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// See: https://www.rfc-editor.org/rfc/rfc1891
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func WithDSNRcptNotifyType(rno ...DSNRcptNotifyOption) Option {
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return func(c *Client) error {
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var rnol []string
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var ns, nns bool
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if len(rno) > 0 {
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for _, crno := range rno {
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switch crno {
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case DSNRcptNotifyNever:
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ns = true
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case DSNRcptNotifySuccess:
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nns = true
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case DSNRcptNotifyFailure:
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nns = true
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case DSNRcptNotifyDelay:
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nns = true
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default:
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return ErrInvalidDSNRcptNotifyOption
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}
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rnol = append(rnol, string(crno))
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}
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}
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if ns && nns {
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return ErrInvalidDSNRcptNotifyCombination
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}
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c.dsn = true
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c.dsnrntype = rnol
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return nil
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}
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}
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// TLSPolicy returns the currently set TLSPolicy as string
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func (c *Client) TLSPolicy() string {
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return c.tlspolicy.String()
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@ -351,11 +482,11 @@ func (c *Client) Send(ml ...*Msg) error {
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return err
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}
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if err := c.sc.Mail(f); err != nil {
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if err := c.mail(f); err != nil {
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return fmt.Errorf("sending MAIL FROM command failed: %w", err)
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}
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for _, r := range rl {
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if err := c.sc.Rcpt(r); err != nil {
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if err := c.rcpt(r); err != nil {
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return fmt.Errorf("sending RCPT TO command failed: %w", err)
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}
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}
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@ -507,3 +638,91 @@ func (c *Client) auth() error {
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}
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return nil
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}
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// mail is an extension to the Go std library mail method. It decideds wether to call the
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// original mail method from the std library or in case DSN is enabled on the Client to
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// call our own method instead
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func (c *Client) mail(f string) error {
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ok, _ := c.sc.Extension("DSN")
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if ok && c.dsn {
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return c.dsnMail(f)
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}
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return c.sc.Mail(f)
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}
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// rcpt is an extension to the Go std library rcpt method. It decideds wether to call
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// original rcpt method from the std library or in case DSN is enabled on the Client to
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// call our own method instead
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func (c *Client) rcpt(t string) error {
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ok, _ := c.sc.Extension("DSN")
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if ok && c.dsn {
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return c.dsnRcpt(t)
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}
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return c.sc.Rcpt(t)
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}
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// dsnRcpt issues a RCPT command to the server using the provided email address.
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// A call to rcpt must be preceded by a call to mail and may be followed by
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// a Data call or another rcpt call.
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//
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// This is a copy of the original Go std library net/smtp function with additions
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// for the DSN extension
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func (c *Client) dsnRcpt(t string) error {
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if err := validateLine(t); err != nil {
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return err
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}
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if len(c.dsnrntype) <= 0 {
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return c.sc.Rcpt(t)
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}
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rno := strings.Join(c.dsnrntype, ",")
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_, _, err := c.cmd(25, "RCPT TO:<%s> NOTIFY=%s", t, rno)
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return err
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}
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// dsnMail issues a MAIL command to the server using the provided email address.
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// If the server supports the 8BITMIME extension, mail adds the BODY=8BITMIME
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// parameter. If the server supports the SMTPUTF8 extension, mail adds the
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// SMTPUTF8 parameter.
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// This initiates a mail transaction and is followed by one or more rcpt calls.
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//
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// This is a copy of the original Go std library net/smtp function with additions
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// for the DSN extension
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func (c *Client) dsnMail(f string) error {
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if err := validateLine(f); err != nil {
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return err
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}
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cmdStr := "MAIL FROM:<%s>"
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if ok, _ := c.sc.Extension("8BITMIME"); ok {
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cmdStr += " BODY=8BITMIME"
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}
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if ok, _ := c.sc.Extension("SMTPUTF8"); ok {
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cmdStr += " SMTPUTF8"
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}
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cmdStr += fmt.Sprintf(" RET=%s", c.dsnmrtype)
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_, _, err := c.cmd(250, cmdStr, f)
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return err
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}
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|
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// validateLine checks to see if a line has CR or LF as per RFC 5321
|
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// This is a 1:1 copy of the method from the original Go std library net/smtp
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func validateLine(line string) error {
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if strings.ContainsAny(line, "\n\r") {
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return errors.New("smtp: A line must not contain CR or LF")
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}
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return nil
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}
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|
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// cmd is a convenience function that sends a command and returns the response
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// This is a 1:1 copy of the method from the original Go std library net/smtp
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func (c *Client) cmd(expectCode int, format string, args ...interface{}) (int, string, error) {
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id, err := c.sc.Text.Cmd(format, args...)
|
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if err != nil {
|
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return 0, "", err
|
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}
|
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c.sc.Text.StartResponse(id)
|
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defer c.sc.Text.EndResponse(id)
|
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code, msg, err := c.sc.Text.ReadResponse(expectCode)
|
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return code, msg, err
|
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}
|
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|
|
231
client_test.go
231
client_test.go
|
@ -94,6 +94,13 @@ func TestNewClientWithOptions(t *testing.T) {
|
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false},
|
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{"WithUsername()", WithUsername("test"), false},
|
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{"WithPassword()", WithPassword("test"), false},
|
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{"WithDSN()", WithDSN(), false},
|
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{"WithDSNMailReturnType()", WithDSNMailReturnType(DSNMailReturnFull), false},
|
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{"WithDSNMailReturnType() wrong option", WithDSNMailReturnType("FAIL"), true},
|
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{"WithDSNRcptNotifyType()", WithDSNRcptNotifyType(DSNRcptNotifySuccess), false},
|
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{"WithDSNRcptNotifyType() wrong option", WithDSNRcptNotifyType("FAIL"), true},
|
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{"WithDSNRcptNotifyType() NEVER combination",
|
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WithDSNRcptNotifyType(DSNRcptNotifySuccess, DSNRcptNotifyNever), true},
|
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}
|
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for _, tt := range tests {
|
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t.Run(tt.name, func(t *testing.T) {
|
||||
|
@ -367,6 +374,87 @@ func TestSetSMTPAuth(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
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// TestWithDSN tests the WithDSN method for the Client object
|
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func TestWithDSN(t *testing.T) {
|
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c, err := NewClient(DefaultHost, WithDSN())
|
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if err != nil {
|
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t.Errorf("failed to create new client: %s", err)
|
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return
|
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}
|
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if !c.dsn {
|
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t.Errorf("WithDSN failed. c.dsn expected to be: %t, got: %t", true, c.dsn)
|
||||
}
|
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if c.dsnmrtype != DSNMailReturnFull {
|
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t.Errorf("WithDSN failed. c.dsnmrtype expected to be: %s, got: %s", DSNMailReturnFull,
|
||||
c.dsnmrtype)
|
||||
}
|
||||
if c.dsnrntype[0] != string(DSNRcptNotifyFailure) {
|
||||
t.Errorf("WithDSN failed. c.dsnrntype[0] expected to be: %s, got: %s", DSNRcptNotifyFailure,
|
||||
c.dsnrntype[0])
|
||||
}
|
||||
if c.dsnrntype[1] != string(DSNRcptNotifySuccess) {
|
||||
t.Errorf("WithDSN failed. c.dsnrntype[1] expected to be: %s, got: %s", DSNRcptNotifySuccess,
|
||||
c.dsnrntype[1])
|
||||
}
|
||||
}
|
||||
|
||||
// TestWithDSNMailReturnType tests the WithDSNMailReturnType method for the Client object
|
||||
func TestWithDSNMailReturnType(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value DSNMailReturnOption
|
||||
want string
|
||||
sf bool
|
||||
}{
|
||||
{"WithDSNMailReturnType: FULL", DSNMailReturnFull, "FULL", false},
|
||||
{"WithDSNMailReturnType: HDRS", DSNMailReturnHeadersOnly, "HDRS", false},
|
||||
{"WithDSNMailReturnType: INVALID", "INVALID", "", true},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
c, err := NewClient(DefaultHost, WithDSNMailReturnType(tt.value))
|
||||
if err != nil && !tt.sf {
|
||||
t.Errorf("failed to create new client: %s", err)
|
||||
return
|
||||
}
|
||||
if string(c.dsnmrtype) != tt.want {
|
||||
t.Errorf("WithDSNMailReturnType failed. Expected %s, got: %s", tt.want, string(c.dsnmrtype))
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// TestWithDSNRcptNotifyType tests the WithDSNRcptNotifyType method for the Client object
|
||||
func TestWithDSNRcptNotifyType(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value DSNRcptNotifyOption
|
||||
want string
|
||||
sf bool
|
||||
}{
|
||||
{"WithDSNRcptNotifyType: NEVER", DSNRcptNotifyNever, "NEVER", false},
|
||||
{"WithDSNRcptNotifyType: SUCCESS", DSNRcptNotifySuccess, "SUCCESS", false},
|
||||
{"WithDSNRcptNotifyType: FAILURE", DSNRcptNotifyFailure, "FAILURE", false},
|
||||
{"WithDSNRcptNotifyType: DELAY", DSNRcptNotifyDelay, "DELAY", false},
|
||||
{"WithDSNRcptNotifyType: INVALID", "INVALID", "", true},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
c, err := NewClient(DefaultHost, WithDSNRcptNotifyType(tt.value))
|
||||
if err != nil && !tt.sf {
|
||||
t.Errorf("failed to create new client: %s", err)
|
||||
return
|
||||
}
|
||||
if len(c.dsnrntype) <= 0 && !tt.sf {
|
||||
t.Errorf("WithDSNRcptNotifyType failed. Expected at least one DSNRNType but got none")
|
||||
}
|
||||
if !tt.sf && c.dsnrntype[0] != tt.want {
|
||||
t.Errorf("WithDSNRcptNotifyType failed. Expected %s, got: %s", tt.want, c.dsnrntype[0])
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// TestSetSMTPAuthCustom tests the SetSMTPAuthCustom method for the Client object
|
||||
func TestSetSMTPAuthCustom(t *testing.T) {
|
||||
tests := []struct {
|
||||
|
@ -589,6 +677,30 @@ func TestClient_DialAndSend(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
// TestClient_DialAndSendWithDSN tests the DialAndSend() method of Client with DSN enabled
|
||||
func TestClient_DialAndSendWithDSN(t *testing.T) {
|
||||
if os.Getenv("TEST_ALLOW_SEND") == "" {
|
||||
t.Skipf("TEST_ALLOW_SEND is not set. Skipping mail sending test")
|
||||
}
|
||||
m := NewMsg()
|
||||
_ = m.FromFormat("go-mail Test Mailer", os.Getenv("TEST_FROM"))
|
||||
_ = m.To(TestRcpt)
|
||||
m.Subject(fmt.Sprintf("This is a test mail from go-mail/v%s", VERSION))
|
||||
m.SetBulk()
|
||||
m.SetDate()
|
||||
m.SetMessageID()
|
||||
m.SetBodyString(TypeTextPlain, "This is a test mail from the go-mail library")
|
||||
|
||||
c, err := getTestConnectionWithDSN(true)
|
||||
if err != nil {
|
||||
t.Skipf("failed to create test client: %s. Skipping tests", err)
|
||||
}
|
||||
|
||||
if err := c.DialAndSend(m); err != nil {
|
||||
t.Errorf("DialAndSend() failed: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
// TestClient_DialSendCloseBroken tests the Dial(), Send() and Close() method of Client with broken settings
|
||||
func TestClient_DialSendCloseBroken(t *testing.T) {
|
||||
if os.Getenv("TEST_ALLOW_SEND") == "" {
|
||||
|
@ -649,6 +761,67 @@ func TestClient_DialSendCloseBroken(t *testing.T) {
|
|||
|
||||
}
|
||||
|
||||
// TestClient_DialSendCloseBrokenWithDSN tests the Dial(), Send() and Close() method of Client with
|
||||
// broken settings and DSN enabled
|
||||
func TestClient_DialSendCloseBrokenWithDSN(t *testing.T) {
|
||||
if os.Getenv("TEST_ALLOW_SEND") == "" {
|
||||
t.Skipf("TEST_ALLOW_SEND is not set. Skipping mail sending test")
|
||||
}
|
||||
tests := []struct {
|
||||
name string
|
||||
from string
|
||||
to string
|
||||
closestart bool
|
||||
closeearly bool
|
||||
sf bool
|
||||
}{
|
||||
{"Invalid FROM", "foo@foo", TestRcpt, false, false, true},
|
||||
{"Invalid TO", os.Getenv("TEST_FROM"), "foo@foo", false, false, true},
|
||||
{"No FROM", "", TestRcpt, false, false, true},
|
||||
{"No TO", os.Getenv("TEST_FROM"), "", false, false, true},
|
||||
{"Close early", os.Getenv("TEST_FROM"), TestRcpt, false, true, true},
|
||||
{"Close start", os.Getenv("TEST_FROM"), TestRcpt, true, false, true},
|
||||
{"Close start/early", os.Getenv("TEST_FROM"), TestRcpt, true, true, true},
|
||||
}
|
||||
|
||||
m := NewMsg(WithEncoding(NoEncoding))
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
m.SetAddrHeaderIgnoreInvalid(HeaderFrom, tt.from)
|
||||
m.SetAddrHeaderIgnoreInvalid(HeaderTo, tt.to)
|
||||
|
||||
c, err := getTestConnectionWithDSN(true)
|
||||
if err != nil {
|
||||
t.Skipf("failed to create test client: %s. Skipping tests", err)
|
||||
}
|
||||
|
||||
ctx, cfn := context.WithTimeout(context.Background(), time.Second*10)
|
||||
defer cfn()
|
||||
if err := c.DialWithContext(ctx); err != nil && !tt.sf {
|
||||
t.Errorf("Dail() failed: %s", err)
|
||||
return
|
||||
}
|
||||
if tt.closestart {
|
||||
_ = c.sc.Close()
|
||||
_ = c.co.Close()
|
||||
}
|
||||
if err := c.Send(m); err != nil && !tt.sf {
|
||||
t.Errorf("Send() failed: %s", err)
|
||||
return
|
||||
}
|
||||
if tt.closeearly {
|
||||
_ = c.sc.Close()
|
||||
_ = c.co.Close()
|
||||
}
|
||||
if err := c.Close(); err != nil && !tt.sf {
|
||||
t.Errorf("Close() failed: %s", err)
|
||||
return
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// TestClient_auth tests the Dial(), Send() and Close() method of Client with broken settings
|
||||
func TestClient_auth(t *testing.T) {
|
||||
tests := []struct {
|
||||
|
@ -687,6 +860,27 @@ func TestClient_auth(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
// TestValidateLine tests the validateLine() method
|
||||
func TestValidateLine(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
value string
|
||||
sf bool
|
||||
}{
|
||||
{"valid line", "valid line", false},
|
||||
{`invalid line: \n`, "invalid line\n", true},
|
||||
{`invalid line: \r`, "invalid line\r", true},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
if err := validateLine(tt.value); err != nil && !tt.sf {
|
||||
t.Errorf("validateLine failed: %s", err)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// getTestConnection takes environment variables to establish a connection to a real
|
||||
// SMTP server to test all functionality that requires a connection
|
||||
func getTestConnection(auth bool) (*Client, error) {
|
||||
|
@ -723,3 +917,40 @@ func getTestConnection(auth bool) (*Client, error) {
|
|||
}
|
||||
return c, nil
|
||||
}
|
||||
|
||||
// getTestConnectionWithDSN takes environment variables to establish a connection to a real
|
||||
// SMTP server to test all functionality that requires a connection. It also enables DSN
|
||||
func getTestConnectionWithDSN(auth bool) (*Client, error) {
|
||||
if os.Getenv("TEST_SKIP_ONLINE") != "" {
|
||||
return nil, fmt.Errorf("env variable TEST_SKIP_ONLINE is set. Skipping online tests")
|
||||
}
|
||||
th := os.Getenv("TEST_HOST")
|
||||
if th == "" {
|
||||
return nil, fmt.Errorf("no TEST_HOST set")
|
||||
}
|
||||
c, err := NewClient(th, WithDSN())
|
||||
if err != nil {
|
||||
return c, err
|
||||
}
|
||||
if auth {
|
||||
st := os.Getenv("TEST_SMTPAUTH_TYPE")
|
||||
if st != "" {
|
||||
c.SetSMTPAuth(SMTPAuthType(st))
|
||||
}
|
||||
u := os.Getenv("TEST_SMTPAUTH_USER")
|
||||
if u != "" {
|
||||
c.SetUsername(u)
|
||||
}
|
||||
p := os.Getenv("TEST_SMTPAUTH_PASS")
|
||||
if p != "" {
|
||||
c.SetPassword(p)
|
||||
}
|
||||
}
|
||||
if err := c.DialWithContext(context.Background()); err != nil {
|
||||
return c, fmt.Errorf("connection to test server failed: %s", err)
|
||||
}
|
||||
if err := c.Close(); err != nil {
|
||||
return c, fmt.Errorf("disconnect from test server failed: %s", err)
|
||||
}
|
||||
return c, nil
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue