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Refine method documentation in client.go
Correct typos and enhance clarity in method descriptions. Provide additional context for default values and behavior, and specify consequences for security settings in client configurations.
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parent
eeaee3f60a
commit
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1 changed files with 42 additions and 29 deletions
71
client.go
71
client.go
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@ -311,7 +311,7 @@ func WithSSLPort(fallback bool) Option {
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}
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}
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// WithDebugLog neables debug logging for the Client. The debug logger will log incoming and outgoing
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// WithDebugLog enables debug logging for the Client. The debug logger will log incoming and outgoing
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// communication between the Client and the server to os.StdErr.
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//
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// Note: The SMTP communication might include unencrypted authentication data, depending if you are
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@ -492,8 +492,10 @@ func WithDSNRcptNotifyType(opts ...DSNRcptNotifyOption) Option {
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}
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}
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// WithoutNoop disables the Client Noop check during connections. This is primarily for servers which delay responses
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// to SMTP commands that are not the AUTH command. For example Microsoft Exchange's Tarpit.
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// WithoutNoop indicates that the Client should skip the "NOOP" command during the dial.
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//
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// This is useful for servers which delay potentially unwanted clients when they perform commands
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// other than AUTH. For example Microsoft Exchange's Tarpit.
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func WithoutNoop() Option {
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return func(c *Client) error {
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c.noNoop = true
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@ -501,7 +503,8 @@ func WithoutNoop() Option {
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}
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}
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// WithDialContextFunc overrides the default DialContext for connecting SMTP server
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// WithDialContextFunc sets the provided DialContextFunc as DialContext and overrides the default DialContext for
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// connecting to the SMTP server
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func WithDialContextFunc(dialCtxFunc DialContextFunc) Option {
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return func(c *Client) error {
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c.dialContextFunc = dialCtxFunc
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@ -509,34 +512,35 @@ func WithDialContextFunc(dialCtxFunc DialContextFunc) Option {
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}
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}
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// TLSPolicy returns the currently set TLSPolicy as string
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// TLSPolicy returns the TLSPolicy that is currently set on the Client as string
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func (c *Client) TLSPolicy() string {
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return c.tlspolicy.String()
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}
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// ServerAddr returns the currently set combination of hostname and port
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// ServerAddr returns the server address that is currently set on the Client in the format "host:port".
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func (c *Client) ServerAddr() string {
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return fmt.Sprintf("%s:%d", c.host, c.port)
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}
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// SetTLSPolicy overrides the current TLSPolicy with the given TLSPolicy value
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// SetTLSPolicy sets or overrides the TLSPolicy that is currently set on the Client with the given
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// TLSPolicy.
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//
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// Note: To follow best-practices for SMTP TLS connections, it is recommended
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// to use SetTLSPortPolicy instead.
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// Note: To follow best-practices for SMTP TLS connections, it is recommended to use SetTLSPortPolicy
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// instead.
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func (c *Client) SetTLSPolicy(policy TLSPolicy) {
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c.tlspolicy = policy
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}
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// SetTLSPortPolicy overrides the current TLSPolicy with the given TLSPolicy
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// value. The correct port is automatically set.
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// SetTLSPortPolicy sets or overrides the TLSPolicy that is currently set on the Client with the given
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// TLSPolicy. The correct port is automatically set.
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//
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// Port 587 is used for TLSMandatory and TLSOpportunistic.
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// If the connection fails with TLSOpportunistic, a plaintext connection is
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// attempted on port 25 as a fallback.
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// NoTLS will allways use port 25.
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// If TLSMandatory or TLSOpportunistic are provided as TLSPolicy, port 587 will be used for the connection.
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// If the connection fails with TLSOpportunistic, the Client will attempt to connect on port 25 using
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// using an unencrypted connection as a fallback. If NoTLS is provided, the Client will always use port 25.
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//
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// Note: If a different port has already been set otherwise, the port-choosing
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// and fallback automatism will be skipped.
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// Note: If a different port has already been set otherwise using WithPort, the selected port has higher
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// precedence and is used to establish the SSL/TLS connection. In this case the authmatic fallback
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// mechanism is skipped at all.
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func (c *Client) SetTLSPortPolicy(policy TLSPolicy) {
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if c.port == DefaultPort {
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c.port = DefaultPortTLS
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@ -552,21 +556,21 @@ func (c *Client) SetTLSPortPolicy(policy TLSPolicy) {
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c.tlspolicy = policy
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}
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// SetSSL tells the Client wether to use SSL or not
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// SetSSL sets or overrides wether the Client should use implicit SSL/TLS.
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func (c *Client) SetSSL(ssl bool) {
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c.useSSL = ssl
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}
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// SetSSLPort tells the Client wether or not to use SSL and fallback.
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// The correct port is automatically set.
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// SetSSLPort sets or overrides wether the Client should use implicit SSL/TLS with optional fallback. The
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// correct port is automatically set.
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//
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// Port 465 is used when SSL set (true).
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// Port 25 is used when SSL is unset (false).
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// When the SSL connection fails and fb is set to true,
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// the client will attempt to connect on port 25 using plaintext.
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// If ssl is set to true, the default port 25 will be overriden with port 465. If fallback is set to true
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// and the SSL/TLS connection fails, the Client will attempt to connect on port 25 using using an
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// unencrypted connection.
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//
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// Note: If a different port has already been set otherwise, the port-choosing
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// and fallback automatism will be skipped.
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// Note: If a different port has already been set otherwise using WithPort, the selected port has higher
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// precedence and is used to establish the SSL/TLS connection. In this case the authmatic fallback
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// mechanism is skipped at all.
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func (c *Client) SetSSLPort(ssl bool, fallback bool) {
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if c.port == DefaultPort {
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if ssl {
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@ -582,7 +586,12 @@ func (c *Client) SetSSLPort(ssl bool, fallback bool) {
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c.useSSL = ssl
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}
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// SetDebugLog tells the Client whether debug logging is enabled or not
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// SetDebugLog sets or overrides wether the Client is using debug logging. The debug logger will log
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// incoming and outgoing communication between the Client and the server to os.StdErr.
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//
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// Note: The SMTP communication might include unencrypted authentication data, depending if you are
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// using SMTP authentication and the type of authentication mechanism. This could pose a data
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// protection problem. Use debug logging with care.
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func (c *Client) SetDebugLog(val bool) {
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c.useDebugLog = val
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if c.smtpClient != nil {
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@ -590,7 +599,10 @@ func (c *Client) SetDebugLog(val bool) {
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}
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}
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// SetLogger tells the Client which log.Logger to use
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// SetLogger sets of overrides the custom logger currently set for the Client. The logger has to satisfy
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// the log.Logger interface and is only used when debug logging is enabled on the Client.
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//
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// By default we use log.Stdlog.
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func (c *Client) SetLogger(logger log.Logger) {
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c.logger = logger
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if c.smtpClient != nil {
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@ -598,7 +610,8 @@ func (c *Client) SetLogger(logger log.Logger) {
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}
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}
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// SetTLSConfig overrides the current *tls.Config with the given *tls.Config value
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// SetTLSConfig sets or overrides the tls.Config that is currently set for the Client with the given value.
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// An error is returned if the provided tls.Config is invalid.
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func (c *Client) SetTLSConfig(tlsconfig *tls.Config) error {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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