Internal web check with request/response Groovy script to check external FTP site

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Is it possible to check an FTP site using an internal web check, and using Groovy script in the request / response?

This URL (https://www.logicmonitor.com/support/services/adding-managing-services/executing-internal-web-checks-via-groovy-scripts/) seems to indicate the commands that can be used, as if it's limited in some way.

I can't think of another way to check the alive-ness of an FTP site somewhere on the web via LogicMonitor, if the device isn't in LogicMonitor itself.

Any ideas?

Thanks,

Roland.

Roland_Banks

Posted 7 years ago·Last reply 7 years ago

1 comment

Kerry DeVilbiss

·7 years ago

Hey @Roland Banks,

That should be possible - the commands listed there are mostly Groovy methods that have been added on by LogicMonitor, which doesn't necessarily mean we're locking down Groovy capabilities in other ways. If you happen to own the LM Config add-on, there's an example of a Groovy script logging in via FTP and pulling the contents of a file:


<span class="kwd">import</span><span class="pln"> org</span><span class="pun">.</span><span class="pln">apache</span><span class="pun">.</span><span class="pln">commons</span><span class="pun">.</span><span class="pln">net</span><span class="pun">.</span><span class="pln">ftp</span><span class="pun">.</span><span>FTPClient</span><span class="pln">
</span><span class="kwd">import</span><span class="pln"> org</span><span class="pun">.</span><span class="pln">apache</span><span class="pun">.</span><span class="pln">commons</span><span class="pun">.</span><span class="pln">net</span><span class="pun">.</span><span class="pln">ftp</span><span class="pun">.</span><span>FTPReply</span><span class="pln">

def host </span><span class="pun">=</span><span class="pln"> hostProps</span><span class="pun">.</span><span class="pln">get</span><span class="pun">(</span><span class="str">"system.hostname"</span><span class="pun">);</span><span class="pln">
def port </span><span class="pun">=</span><span class="pln"> hostProps</span><span class="pun">.</span><span class="pln">get</span><span class="pun">(</span><span class="str">"ftp.port"</span><span class="pun">)</span><span class="pln"> </span><span class="pun">?:</span><span class="pln"> </span><span class="str">'21'</span><span class="pun">;</span><span class="pln">

def user </span><span class="pun">=</span><span class="pln"> hostProps</span><span class="pun">.</span><span class="pln">get</span><span class="pun">(</span><span class="str">"ftp.user"</span><span class="pun">);</span><span class="pln">
def pass </span><span class="pun">=</span><span class="pln"> hostProps</span><span class="pun">.</span><span class="pln">get</span><span class="pun">(</span><span class="str">"ftp.pass"</span><span class="pun">);</span><span class="pln">

def client </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span>FTPClient</span><span class="pun">()</span><span class="pln">
client</span><span class="pun">.</span><span class="pln">connect</span><span class="pun">(</span><span class="pln">host</span><span class="pun">,</span><span class="pln"> port</span><span class="pun">.</span><span class="pln">toInteger</span><span class="pun">())</span><span class="pln">

</span><span class="com">// After connection attempt, you should check the reply code to verify</span><span class="pln">
</span><span class="com">// success.</span><span class="pln">
def reply </span><span class="pun">=</span><span class="pln"> client</span><span class="pun">.</span><span class="pln">getReplyCode</span><span class="pun">();</span><span class="pln">

</span><span class="com">// Did we get a positive completion reply?</span><span class="pln">
</span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(!</span><span>FTPReply</span><span class="pun">.</span><span class="pln">isPositiveCompletion</span><span class="pun">(</span><span class="pln">reply</span><span class="pun">))</span><span class="pln">
</span><span class="pun">{</span><span class="pln">
    </span><span class="com">// no, disconnect</span><span class="pln">
    client</span><span class="pun">.</span><span class="pln">disconnect</span><span class="pun">();</span><span class="pln">
    println </span><span class="str">"FTP server refused connection."</span><span class="pun">;</span><span class="pln">
    </span><span class="kwd">return</span><span class="pln"> </span><span class="lit">1</span><span class="pun">;</span><span class="pln">
</span><span class="pun">}</span><span class="pln">


</span><span class="com">// Connection looks good, login</span><span class="pln">
client</span><span class="pun">.</span><span class="pln">login</span><span class="pun">(</span><span class="pln">user</span><span class="pun">,</span><span class="pln"> pass</span><span class="pun">)</span><span class="pln">

</span><span class="com">// Create a BAOS to store the file contents</span><span class="pln">
</span><span>ByteArrayOutputStream</span><span class="pln"> baos </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span>ByteArrayOutputStream</span><span class="pun">()</span><span class="pln">

</span><span class="com">// Retreive the file</span><span class="pln">
client</span><span class="pun">.</span><span class="pln">retrieveFile</span><span class="pun">(</span><span class="str">"##WILDVALUE##"</span><span class="pun">,</span><span class="pln"> baos</span><span class="pun">)</span><span class="pln">

</span><span class="com">// Log out and disconnection from the server</span><span class="pln">
client</span><span class="pun">.</span><span class="pln">logout</span><span class="pun">()</span><span class="pln">
client</span><span class="pun">.</span><span class="pln">disconnect</span><span class="pun">()</span><span class="pln">

</span><span class="com">// Print the contents of the file from the BAOS.</span><span class="pln">
println baos

</span><span class="kwd">return</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span>

Hope that helps!

Cheers,

Kerry

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