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| <h1 class="page">Distributed James Server — Custom SMTP hooks</h1> |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>SMTP hooks enable extending capabilities of the SMTP server and are run synchronously upon email reception, before the email is |
| enqueued in the MailQueue, and before any mail processing takes place.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_available_generic_hooks"><a class="anchor" href="#_available_generic_hooks"></a>Available generic hooks</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>The following interfaces allows interacting with the following commands:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>AuthHook</strong>: Implement this interfaces to hook in the AUTH Command.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doAuth(SMTPSession session, Username username, String password);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>HeloHook</strong>: Implement this interfaces to hook in the HELO Command</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doHelo(SMTPSession session, String helo);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>MailHook</strong>: Implement this interfaces to hook in the MAIL Command</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doMail(SMTPSession session, MaybeSender sender);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>MailParametersHook</strong>: Implement this interfaces to hook in the MAIL Command, this is called for specific mail arguments</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doMailParameter(SMTPSession session, String paramName, String paramValue);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>QuitHook</strong>: Implement this interfaces to hook in the QUIT Command</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doQuit(SMTPSession session);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>RcptHook</strong>: Implement this interfaces to hook in the RCPT Command</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doRcpt(SMTPSession session, MaybeSender sender, MailAddress rcpt);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><strong>UnknownHook</strong>: Hook for unknown commands</p> |
| </li> |
| </ul> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre> HookResult doUnknown(SMTPSession session, String command);</pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_custom_hook_registration"><a class="anchor" href="#_custom_hook_registration"></a>Custom hook registration</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Register you hooks using <a href="../configure/smtp.html" class="xref page"><strong>smtpserver.xml</strong></a> handlerchain property.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_writing_additional_smtp_commands"><a class="anchor" href="#_writing_additional_smtp_commands"></a>Writing additional SMTP commands</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>What to do if the Hook API is not enough for you ?</p> |
| </div> |
| <div class="paragraph"> |
| <p>You want for example to write a code which handles a new command like "YOURCOOLCOMMAND: whatever@example".</p> |
| </div> |
| <div class="paragraph"> |
| <p>For this kind of needs you should implement the CommandHandler interface. This gives you a lower-level API |
| to handle this kind of tasks. If you want to support a custom Hook in your CommandHandler its the best to |
| just extend AbstractHookableCmdHandler.</p> |
| </div> |
| </div> |
| </div> |
| </article> |
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