Calcolare indirizzo IP e rete in PHP

Petar

7 anni fa

In rete si trovano già numerosi calcolatori di indirizzi IP e rete, come per esempio questo oppure questo.

Prendendo spunto da essi ecco una classe in PHP per ottenere i medesimi risultati. Lo scopo principale in questo caso è utilizzare le operazioni binarie in PHP per calcolare i vari valori di ID Rete, Subnet mask, ecc.

<?php

class IPCalc {
	
	const NO_ERROR = 0;
	const IP_ERROR = 1;
	const NETMASK_ERROR = 2;
	
	private $ip = array(0,0,0,0);
	private $netmask = array(0,0,0,0);
	private $wildcard = array(0,0,0,0);
	private $netid = array(0,0,0,0);
	private $broadcast = array(0,0,0,0);
	private $hostmin = array(0,0,0,0);
	private $hostmax = array(0,0,0,0);
	private $nhosts = 0;
	private $nnetmask = 24;
	private $class = "";
	private $error = self::IP_ERROR;
	
	private $classes = array(
								//min	max		1st octet	network=1,hosts=0
		"A" 			=> array(1,		126,	0,			array(1,0,0,0)),
		"A localhost" 	=> array(127,	127,	0,			array(1,0,0,0)),
		"B" 			=> array(128,	191,	10,			array(1,1,0,0)),
		"C" 			=> array(192,	223,	110,		array(1,1,1,0)),
		"D" 			=> array(224,	239,	1110,		array()),
		"E" 			=> array(240,	254,	1111,		array())
	);
	
	function setIp($ip) {
		
		if( $this->checkValidIp( $ip ) ) {
			
			$tmp = explode(".",$ip);
			foreach( $tmp as $k => $v )
				$this->ip[$k] = ( $v );
		
			$this->error = self::NO_ERROR;
			
		}
		
	}
	
	function getError() {
		
		return $this->error;
		
	}
	
	function checkValidIp( $ip ) {
		
		return (filter_var($ip, FILTER_VALIDATE_IP) !== false);
		
	}
	
	function setNetwork( $ip ) {
		
		$tmp = explode("/",$ip);
		
		$this->setIp($tmp[0]);
		$this->setNetMask(count($tmp)>1?$tmp[1]:24);
		$this->setWildcard();
		$this->setNetId();
		$this->setBroadcast();
		$this->setHosts();
		$this->setClass();
		
	}
	
	function setNetMask( $mask = 24 ) {
		
		$this->nnetmask = (int)$mask;
		
		if( $mask < 1 || $mask > 32 ) $this->error = self::NETMASK_ERROR;
		
		for( $i = 0; $i < 32; $i++ ) {
			$this->netmask[floor($i/8)] += ( $i < $mask ? pow(2, 7-$i%8) : 0 );
		}
		//foreach( $this->netmask as $k => $v ) $this->netmask[$k] = ($v);
		
	}
	
	function setWildcard() {
		
		foreach( $this->netmask as $k => $v ) $this->wildcard[$k] = 255 ^ $v ;
		
	}
	
	function setNetId() {
		
		foreach( $this->netmask as $k => $v ) $this->netid[$k] = $this->ip[$k] & $v ;
		
	}
	
	function setBroadcast() {
		
		foreach( $this->wildcard as $k => $v ) $this->broadcast[$k] = $v | $this->ip[$k] ;
		
	}
	
	function setHosts() {
		
		$this->hostmin = $this->netid;
		$this->hostmin[3]++;
		
		$this->hostmax = $this->broadcast;
		$this->hostmax[3]--;
		
		$this->nhosts = pow(2,32-$this->nnetmask) - 2;
		
	}
	
	function setClass() {
		
		foreach( $this->classes as $c => $vals ) {
			if( $this->ip[0] >= $vals[0] && $this->ip[0] <= $vals[1] ) $this->class = $c;
		}
		
	}
	
	function getBinary($val) {
		
		$tmp = array();
		foreach( $val as $add ) {
			array_push( $tmp, str_pad( decbin($add) , 8, "0", STR_PAD_LEFT ) );
		}
		return implode(".",$tmp);
		
	}
	
	function getDecimal($val) {
		
		$tmp = array();
		foreach( $val as $add ) {
			array_push( $tmp, ($add) );
		}
		return implode(".",$tmp);
		
	}
	
	function getBinaryIp() {
		
		return $this->getBinary( $this->ip );
		
	}
	
	function getBinaryMask() {
		
		return $this->getBinary( $this->netmask );
		
	}
	
	function getBinaryWildcard() {
		
		return $this->getBinary( $this->wildcard );
		
	}
	
	function getBinaryNetID() {
		
		return $this->getBinary( $this->netid );
		
	}
	
	function getBinaryBroadcast() {
		
		return $this->getBinary( $this->broadcast );
		
	}
	
	function getBinaryHostMax() {
		
		return $this->getBinary( $this->hostmax );
		
	}
	
	function getBinaryHostMin() {
		
		return $this->getBinary( $this->hostmin );
		
	}
	
	function getIp() {
		
		return $this->getDecimal( $this->ip );
		
	}
	
	function getMask() {
		
		return $this->getDecimal( $this->netmask );
		
	}
	
	function getWildcard() {
		
		return $this->getDecimal( $this->wildcard );
		
	}
	
	function getNetID() {
		
		return $this->getDecimal( $this->netid );
		
	}
	
	function getBroadcast() {
		
		return $this->getDecimal( $this->broadcast );
		
	}
	
	function getHostMax() {
		
		return $this->getDecimal( $this->hostmax );
		
	}
	
	function getHostMin() {
		
		return $this->getDecimal( $this->hostmin );
		
	}
	
	function getNHosts() {
		
		return $this->nhosts;
		
	}
	
	function getNNetMask() {
		
		return $this->nnetmask;
		
	}
	
	function getClass($pos) {
		
		if( $pos == -1 ) return $this->class;
		else return $this->classes[$this->class][$pos];
		
	}
	
	
}


?>

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

<?php

class IPCalc {

const NO_ERROR = 0;

const IP_ERROR = 1;

const NETMASK_ERROR = 2;

private $ip = array(0,0,0,0);

private $netmask = array(0,0,0,0);

private $wildcard = array(0,0,0,0);

private $netid = array(0,0,0,0);

private $broadcast = array(0,0,0,0);

private $hostmin = array(0,0,0,0);

private $hostmax = array(0,0,0,0);

private $nhosts = 0;

private $nnetmask = 24;

private $class = "";

private $error = self::IP_ERROR;

private $classes = array(

//min max 1st octet network=1,hosts=0

"A" => array(1, 126, 0, array(1,0,0,0)),

"A localhost" => array(127, 127, 0, array(1,0,0,0)),

"B" => array(128, 191, 10, array(1,1,0,0)),

"C" => array(192, 223, 110, array(1,1,1,0)),

"D" => array(224, 239, 1110, array()),

"E" => array(240, 254, 1111, array())

);

function setIp($ip) {

if( $this->checkValidIp( $ip ) ) {

$tmp = explode(".",$ip);

foreach( $tmp as $k => $v )

$this->ip[$k] = ( $v );

$this->error = self::NO_ERROR;

}

function getError() {

return $this->error;

}

function checkValidIp( $ip ) {

return (filter_var($ip, FILTER_VALIDATE_IP) !== false);

}

function setNetwork( $ip ) {

$tmp = explode("/",$ip);

$this->setIp($tmp[0]);

$this->setNetMask(count($tmp)>1?$tmp[1]:24);

$this->setWildcard();

$this->setNetId();

$this->setBroadcast();

$this->setHosts();

$this->setClass();

}

function setNetMask( $mask = 24 ) {

$this->nnetmask = (int)$mask;

if( $mask < 1 || $mask > 32 ) $this->error = self::NETMASK_ERROR;

for( $i = 0; $i < 32; $i++ ) {

$this->netmask[floor($i/8)] += ( $i < $mask ? pow(2, 7-$i%8) : 0 );

}

//foreach( $this->netmask as $k => $v ) $this->netmask[$k] = ($v);

}

function setWildcard() {

foreach( $this->netmask as $k => $v ) $this->wildcard[$k] = 255 ^ $v ;

}

function setNetId() {

foreach( $this->netmask as $k => $v ) $this->netid[$k] = $this->ip[$k] & $v ;

}

function setBroadcast() {

foreach( $this->wildcard as $k => $v ) $this->broadcast[$k] = $v | $this->ip[$k] ;

}

function setHosts() {

$this->hostmin = $this->netid;

$this->hostmin[3]++;

$this->hostmax = $this->broadcast;

$this->hostmax[3]--;

$this->nhosts = pow(2,32-$this->nnetmask) - 2;

}

function setClass() {

foreach( $this->classes as $c => $vals ) {

if( $this->ip[0] >= $vals[0] && $this->ip[0] <= $vals[1] ) $this->class = $c;

}

function getBinary($val) {

$tmp = array();

foreach( $val as $add ) {

array_push( $tmp, str_pad( decbin($add) , 8, "0", STR_PAD_LEFT ) );

}

return implode(".",$tmp);

}

function getDecimal($val) {

$tmp = array();

foreach( $val as $add ) {

array_push( $tmp, ($add) );

}

return implode(".",$tmp);

}

function getBinaryIp() {

return $this->getBinary( $this->ip );

}

function getBinaryMask() {

return $this->getBinary( $this->netmask );

}

function getBinaryWildcard() {

return $this->getBinary( $this->wildcard );

}

function getBinaryNetID() {

return $this->getBinary( $this->netid );

}

function getBinaryBroadcast() {

return $this->getBinary( $this->broadcast );

}

function getBinaryHostMax() {

return $this->getBinary( $this->hostmax );

}

function getBinaryHostMin() {

return $this->getBinary( $this->hostmin );

}

function getIp() {

return $this->getDecimal( $this->ip );

}

function getMask() {

return $this->getDecimal( $this->netmask );

}

function getWildcard() {

return $this->getDecimal( $this->wildcard );

}

function getNetID() {

return $this->getDecimal( $this->netid );

}

function getBroadcast() {

return $this->getDecimal( $this->broadcast );

}

function getHostMax() {

return $this->getDecimal( $this->hostmax );

}

function getHostMin() {

return $this->getDecimal( $this->hostmin );

}

function getNHosts() {

return $this->nhosts;

}

function getNNetMask() {

return $this->nnetmask;

}

function getClass($pos) {

if( $pos == -1 ) return $this->class;

else return $this->classes[$this->class][$pos];

}

Ecco di seguito un esempio di utilizzo:

<?php

$ip = new IPCalc();
$ip->setNetwork( "192.168.0.1/25" );
echo $ip->getBinaryIp();
echo "<br>";
echo $ip->getIp();
echo "<br>";
echo $ip->getBinaryMask();
echo "<br>";
echo $ip->getMask();
echo "<br>";
echo $ip->getBinaryWildcard();
echo "<br>";
echo $ip->getWildcard();
echo "<br>";
echo $ip->getBinaryNetID();
echo "<br>";
echo $ip->getNetID();
echo "<br>";
echo $ip->getBinaryBroadcast();
echo "<br>";
echo $ip->getBroadcast();
echo "<br>";
echo $ip->getBinaryHostMax();
echo "<br>";
echo $ip->getHostMax();
echo "<br>";
echo $ip->getBinaryHostMin();
echo "<br>";
echo $ip->getHostMin();
echo "<br>";
echo $ip->getNHosts();

?>

<?php

$ip = new IPCalc();

$ip->setNetwork( "192.168.0.1/25" );

echo $ip->getBinaryIp();

echo " ";

echo $ip->getIp();

echo " ";

echo $ip->getBinaryMask();

echo " ";

echo $ip->getMask();

echo " ";

echo $ip->getBinaryWildcard();

echo " ";

echo $ip->getWildcard();

echo " ";

echo $ip->getBinaryNetID();

echo " ";

echo $ip->getNetID();

echo " ";

echo $ip->getBinaryBroadcast();

echo " ";

echo $ip->getBroadcast();

echo " ";

echo $ip->getBinaryHostMax();

echo " ";

echo $ip->getHostMax();

echo " ";

echo $ip->getBinaryHostMin();

echo " ";

echo $ip->getHostMin();

echo " ";

echo $ip->getNHosts();

Condividi: