Basic Example Script

The following is a basic example of an SDL script to discover the Apache HTTPD web server.

Example 4.10. Basic Example Script

//
// Apache HTTPD Server
//

$PRODUCT_NAME 	= "apachehttpd";		// Required
$VENDOR_NAME 	= "Apache Foundation";		// Required

Debug("Looking for Apache httpd web server");

$HttpdPaths = "/usr/apache/bin/httpd:/sbin/httpd:/usr/sbin/httpd:/usr/local/sbin/httpd:/usr/local/bin/httpd:/bin/httpd:/usr/bin/httpd";

$Paths = StrSplit(":", $HttpdPaths);

foreach $path ($Paths) {
    Debug("Looking for $path");
    if (PathExists($path, "FILE")) {
	if (HttpdProbe($path)) {
	    break;
	}
    }
}

//
// Probe using $HttpdPath as path to httpd
//
HttpdProbe(String_t $HttpdPath)
{
    Debug("Probe using httpd ${HttpdPath}");

    $CmdHandle = CmdOpen($HttpdPath, "-v");

    while ($Line = CmdReadLine($CmdHandle)) {
	Debug("READ: ${Line}");

	if (StrMatchN($Line, "Server version:", 15)) {
	    Debug("Found version line.");
	    if (StrRegExMatch($Line, "Apache")) {
		Debug("Matched line ${Line}");
		// Line looks like: Server version: Apache/2.2.3
		$Version = StrEdit(".*/", $Line, "", NULL);
	    }
	} else {
	    Debug("Check for built in ${Line}");
	    if (StrMatchN($Line, "Server built:", 13)) {
		Debug("Found built info.");
		$BuildDate = StrEdit("Server built:", $Line, "", NULL);
		$BuildDate = StrEdit("^.[ ]+", $BuildDate, "", NULL);
	    }
	}
    }
    CmdClose($CmdHandle);

    if (!$Version) {
	Debug("No Version was found - skipping $HttpdPath");
	Return(0);
    }

    $SoftInfo = SoftInfoCreate($PRODUCT_NAME, $Version);
    SoftInfoSet($SoftInfo, "VendorName", $VENDOR_NAME);
    SoftInfoSet($SoftInfo, "Desc", "HTTP Web Server");
    SoftInfoSet($SoftInfo, "VendorName", $VENDOR_NAME);
    if ($BuildDate) {
	SoftInfoSet($SoftInfo, "BuildDate", $BuildDate);
    }
    if ($dir = PathDirName($HttpdPath)) {
	SoftInfoSet($SoftInfo, "BaseDir", $dir);
    }
    if ($size = FileSize($HttpdPath)) {
	SoftInfoSet($SoftInfo, "DiskUsage", $size);
    }

    SoftInfoAdd($SoftInfo);	// Add to tree

    Return(1);
}