215 lines
6.7 KiB
Markdown
215 lines
6.7 KiB
Markdown
# phpWhois - base class to do whois queries with PHP
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This package contains a Whois (RFC954) library for PHP. It allows
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a PHP program to create a Whois object, and obtain the output of
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a whois query with the Lookup function.
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The response is an array containing, at least, an element 'rawdata',
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containing the raw output from the whois request.
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In addition, if the domain belongs to a registrar for which a special
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handler exists, the special handler will parse the output and make
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additional elements available in the response. The keys of these
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additional elements are described in the file HANDLERS.
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It fully supports IDNA (internationalized) domains names as
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defined in RFC3490, RFC3491, RFC3492 and RFC3454.
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It also supports ip/AS whois queries which are very useful to trace
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SPAM. You just only need to pass the doted quad ip address or the
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AS (Autonomus System) handle instead of the domain name. Limited,
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non-recursive support for Referral Whois (RFC 1714/2167) is also
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provided.
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### Requirements
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phpWhois requires PHP 4.3.0 or better with OpenSSL support to
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work properly. Without SSL support you will not be able to
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query domains which do not have a whois server but that have
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a https based whois. Also, you can run it in lower PHP versions
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but without timeout control. phpWhois will not work with PHP
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versions below 4.1.0
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### Installation
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Basically, untar the distribution somewhere outside your server's
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document root and make sure the directory is listed in 'include_path'
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in your php.ini file, server configuration or in an .htaccess file.
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If you want to test it using a web browser just copy example.php ,
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example.html and whois.icon.png anywhere on your server's document
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root and try it.
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phpWhois is not a PHP aplication is a class that can be used in
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applications. There is no need to make the installation folder
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accesible to anyone but PHP, nevertheless you can install it inside
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your server's document root if you like, it will work without
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problems or security risks.
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### Example usage
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See example.php
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```php
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include 'whois.main.php';
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$whois = new Whois();
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$query = 'example.com';
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$result = $whois->Lookup($query,false);
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echo '<pre>';
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print_r($result);
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echo '</pre>';
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```
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If you provide the domain name to query in UTF-8, then you
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must use:
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```php
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$result = $whois->Lookup($query);
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```
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If the query string is not in UTF-8 then it must be in
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ISO-8859-1 or IDNA support will not work.
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### What you can query
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You can use phpWhois to query domain names, ip addresses and
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other information like AS, i.e, both of the following examples
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work:
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```php
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$whois = new Whois();
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$result = $whois->Lookup('example.com');
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$whois = new Whois();
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$result = $whois->Lookup('62.97.102.115');
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$whois = new Whois();
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$result = $whois->Lookup('AS220');
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```
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### Using special whois servers
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Some registrars can give special access to registered whois gateways
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in order to have more fine control against abusing the whois services.
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The currently known whois services that offer special acccess are:
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- ripe
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The new ripe whois server software support some special parameters
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that allow to pass the real client ip address. This feature is only
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available to registered gateways. If you are registered you can use
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this service when querying ripe ip addresses that way:
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```php
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$whois = new Whois();
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$whois->UseServer('uk', 'whois.ripe.net?-V{version},{ip} {query}');
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$result = $whois->Lookup('62.97.102.115');
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```
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- whois.isoc.org.il
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This server is also using the new ripe whois server software and
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thus works the same way. If you are registered you can use this service
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when querying .il domains that way:
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```php
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$whois = new Whois();
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$whois->UseServer('uk', 'whois.isoc.org.il?-V{version},{ip} {query}');
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$result = $whois->Lookup('example.co.uk');
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```
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- whois.nic.uk
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They offer what they call WHOIS2 (see http://www.nominet.org.uk/go/whois2 )
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to registered users (usually Nominet members) with a higher amount of
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permited queries by hour. If you are registered you can use this service
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when querying .uk domains that way:
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```php
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$whois = new Whois();
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$whois->UseServer('uk', 'whois.nic.uk:1043?{hname} {ip} {query}');
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$result = $whois->Lookup('example.co.uk');
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```
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This new feature also allows you to use a different whois server than
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the preconfigured or discovered one by just calling whois->UseServer
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and passing the tld and the server and args to use for the named tld.
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For example you could use another whois server for .au domains that
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does not limit the number of requests (but provides no owner
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information) using this:
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```php
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$whois = new Whois();
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$whois->UseServer('au', 'whois-check.ausregistry.net.au');
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```
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or:
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```php
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$whois = new Whois();
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$whois->UseServer('be', 'whois.tucows.com');
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```
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to avoid the restrictions imposed by the .be whois server
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or:
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```php
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$whois = new Whois();
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$whois->UseServer('ip', 'whois.apnic.net');
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```
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to lookup an ip address at specific whois server (but loosing the
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ability to get the results parsed by the appropiate handler)
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UseServer can be called as many times as necessary. Please note that
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if there is a handler for that domain it will also be called but
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returned data from the whois server may be different than the data
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expected by the handler, and thus results could be different.
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### Getting results faster
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If you just want to know if a domain is registered or not but do not
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care about getting the real owner information you can set:
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```php
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$whois->deep_whois = false;
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```
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this will tell phpWhois to just query one whois server. For .com, .net
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and .tv domains and ip addresses this will prevent phpWhois to ask more
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than one whois server, you will just know if the donmain is registered
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or not and which is the registrar but not the owner information.
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### UTF-8
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PHPWhois will assume that all whois servers return UTF-8 encoded output,
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if some whois server does not return UTF-8 data, you can include it in
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the `NON_UTF8` array in whois.servers.php
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### Notes
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There is an extended class called "whois.utils.php" which contains a
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debugging function called showObject(), if you showObject($result)
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it will output the total layout of the returned object to the
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web browser.
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The latest version of the package and a demo script resides at
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http://phpwhois.sourceforge.net/
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There is also be an article describing the package on devshed.com
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at http://www.devshed.com/Server_Side/PHP/whois/
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### Support/Patches
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If you're really stuck and can't figure something out, or you want
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to contribute an extended class for one of the TLD's, send a PR
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or open an issue on GitHub. One of the developers will get around
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to applying or responding.
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https://github.com/sparc/phpWhois.org
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### Credits
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- Mark Jeftovic markjr@easydns.com
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- David Saez Padros david@ols.es
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- Ross Golder ross@golder.org
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