Merge branch 'main' into issue-3911issue-3911

1 files changed, 0 insertions, 271 deletions

diff --git a/lib/phplib/email_validation.class.php b/lib/phplib/email_validation.class.php
deleted file mode 100644
index 070fa02..0000000
--- a/lib/phplib/email_validation.class.php
+++ /dev/null
@@ -1,271 +0,0 @@
-<?php
-/*
- * email_validation.php
- *
- * @(#) $Header$
- *
- */
-
-class email_validation_class
-{
-    var $username_regular_expression=null;
-    var $password_regular_expression="/^.{8,}\$/";
-    var $name_regular_expression='/^[_ a-zA-ZÀ-ÿ\'-]+$/';
-    var $telefon_regular_expression="/^([0-9 \(\)\\/+_-]*)\$/";
-    var $timeout=10;
-    var $data_timeout=10;
-    var $localhost="studip.de";
-    var $localuser="info";
-    var $debug=0;
-    var $html_debug=0;
-    var $exclude_address="";
-    var $getmxrr="GetMXRR";
-
-    var $next_token="";
-
-    private $idna_convert;
-
-    function __construct()
-    {
-        $this->username_regular_expression = Config::get()->USERNAME_REGULAR_EXPRESSION;
-        $this->idna_convert = new Algo26\IdnaConvert\ToIdn();
-    }
-
-    Function Tokenize($string,$separator="")
-    {
-        if(!strcmp($separator,""))
-        {
-            $separator=$string;
-            $string=$this->next_token;
-        }
-        for($character=0;$character<mb_strlen($separator);$character++)
-        {
-            if(GetType($position=mb_strpos($string,$separator[$character]))=="integer")
-                $found=(IsSet($found) ? min($found,$position) : $position);
-        }
-        if(IsSet($found))
-        {
-            $this->next_token=mb_substr($string,$found+1);
-            return(mb_substr($string,0,$found));
-        }
-        else
-        {
-            $this->next_token="";
-            return($string);
-        }
-    }
-
-    Function OutputDebug($message)
-    {
-        $message.="\n";
-        if($this->html_debug)
-            $message=str_replace("\n","<br>\n",HtmlEntities($message));
-        echo $message;
-        flush();
-    }
-
-    Function GetLine($connection)
-    {
-        for($line="";;)
-        {
-            if(feof($connection))
-                return(0);
-            $line.=fgets($connection,100);
-            $length=mb_strlen($line);
-            if($length>=2
-            && mb_substr($line,$length-2,2)=="\r\n")
-            {
-                $line=mb_substr($line,0,$length-2);
-                if($this->debug)
-                    $this->OutputDebug("S $line");
-                return($line);
-            }
-        }
-    }
-
-    Function PutLine($connection,$line)
-    {
-        if($this->debug)
-            $this->OutputDebug("C $line");
-        return(fputs($connection,"$line\r\n"));
-    }
-
-    Function ValidateUsername($username)
-    {
-        return(mb_strtolower($username) != 'studip' && preg_match($this->username_regular_expression,$username)!=0);
-    }
-
-    Function ValidatePassword($password)
-    {
-        return preg_match($this->password_regular_expression, $password) != 0;
-    }
-
-    Function ValidateName($name)
-    {
-        return(preg_match($this->name_regular_expression,$name)!=0);
-    }
-
-    Function ValidateTelefon($telefon)
-    {
-        return(preg_match($this->telefon_regular_expression,$telefon)!=0);
-    }
-
-    /**
-     * Validates an email adress. If you pass a comma separated list of domains
-     * as the second parameter, the email is also validated against this list
-     * of domains and the email is only valid if it matches any of the domains.
-     *
-     * @param string $email   Email adress to validate
-     * @param string $domains Optional comma separated list of valid domains
-     * @return bool
-     */
-    public function ValidateEmailAddress($email, $domains = '')
-    {
-        $converted_email = $this->idna_convert->convert($email);
-        if (!filter_var($converted_email, FILTER_VALIDATE_EMAIL)) {
-            return false;
-        }
-
-        if (!$domains) {
-            return true;
-        }
-
-        $checks = [];
-        foreach (explode(',', $domains) as $domain) {
-            $checks[] = preg_quote('@' . trim($domain), '/');
-        }
-
-        $regexp = '/' . implode('|', $checks) . '$/i';
-        return preg_match($regexp, $email) > 0;
-    }
-
-    Function ValidateEmailHost($email){
-        return $this->ValidateEmailHostIntern($email, $hosts);
-    }
-
-    Function ValidateEmailHostIntern($email,&$hosts)
-    {
-        if (!$GLOBALS['MAIL_VALIDATE_HOST']){
-            return true;
-        }
-        if(!$this->ValidateEmailAddress($email))
-            return(0);
-        $user=$this->Tokenize($email,"@");
-        $domain=$this->Tokenize("");
-        $hosts=$weights=[];
-        $getmxrr=$this->getmxrr;
-        if(function_exists($getmxrr)
-        && $getmxrr($domain,$hosts,$weights))
-        {
-            $mxhosts=[];
-            for($host=0;$host<count($hosts);$host++)
-                $mxhosts[$weights[$host]]=$hosts[$host];
-            KSort($mxhosts);
-            for(Reset($mxhosts),$host=0;$host<count($mxhosts);Next($mxhosts),$host++)
-                $hosts[$host]=$mxhosts[Key($mxhosts)];
-        }
-        else
-        {
-            if(strcmp($ip=@gethostbyname($domain),$domain)
-            && (mb_strlen($this->exclude_address)==0
-            || strcmp(@gethostbyname($this->exclude_address),$ip)))
-                $hosts[]=$domain;
-        }
-        return(count($hosts)!=0);
-    }
-
-    Function VerifyResultLines($connection,$code)
-    {
-        while(($line=$this->GetLine($connection)))
-        {
-            if(!strcmp($this->Tokenize($line," "),$code))
-                return(1);
-            if(strcmp($this->Tokenize($line,"-"),$code))
-                return(0);
-        }
-        return(-1);
-    }
-
-    Function ValidateEmailBox($email)
-    {
-        if (!$GLOBALS['MAIL_VALIDATE_BOX']){
-            return true;
-        }
-        if(!$this->ValidateEmailHostIntern($email,$hosts))
-            return(0);
-        if(!strcmp($localhost=$this->localhost,"")
-        && !strcmp($localhost=getenv("SERVER_NAME"),"")
-        && !strcmp($localhost=getenv("HOST"),""))
-           $localhost="localhost";
-        if(!strcmp($localuser=$this->localuser,"")
-        && !strcmp($localuser=getenv("USERNAME"),"")
-        && !strcmp($localuser=getenv("USER"),""))
-           $localuser="root";
-        for($host=0;$host<count($hosts);$host++)
-        {
-            $domain=$hosts[$host];
-            if(preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/',$domain))
-                $ip=$domain;
-            else
-            {
-                if($this->debug)
-                    $this->OutputDebug("Resolving host name \"".$hosts[$host]."\"...");
-                if(!strcmp($ip=@gethostbyname($domain),$domain))
-                {
-                    if($this->debug)
-                        $this->OutputDebug("Could not resolve host name \"".$hosts[$host]."\".");
-                    continue;
-                }
-            }
-            if(mb_strlen($this->exclude_address)
-            && !strcmp(@gethostbyname($this->exclude_address),$ip))
-            {
-                if($this->debug)
-                    $this->OutputDebug("Host address of \"".$hosts[$host]."\" is the exclude address");
-                continue;
-            }
-            if($this->debug)
-                $this->OutputDebug("Connecting to host address \"".$ip."\"...");
-            if(($connection=($this->timeout ? @fsockopen($ip,25,$errno,$error,$this->timeout) : @fsockopen($ip,25))))
-            {
-                $timeout=($this->data_timeout ? $this->data_timeout : $this->timeout);
-                if($timeout
-                && function_exists("socket_set_timeout"))
-                    socket_set_timeout($connection,$timeout,0);
-                if($this->debug)
-                    $this->OutputDebug("Connected.");
-                if($this->VerifyResultLines($connection,"220")>0
-                && $this->PutLine($connection,"HELO $localhost")
-                && $this->VerifyResultLines($connection,"250")>0
-                && $this->PutLine($connection,"MAIL FROM: <$localuser@$localhost>")
-                && $this->VerifyResultLines($connection,"250")>0
-                && $this->PutLine($connection,"RCPT TO: <$email>")
-                && ($result=$this->VerifyResultLines($connection,"250"))>=0)
-                {
-                    if($result
-                    && $this->PutLine($connection,"DATA"))
-                        $result=($this->VerifyResultLines($connection,"354")!=0);
-                    if($this->debug)
-                        $this->OutputDebug("This host states that the address is ".($result ? "" : "not ")."valid.");
-                    fclose($connection);
-                    if($this->debug)
-                        $this->OutputDebug("Disconnected.");
-                    return($result);
-                }
-                if($this->debug)
-                    $this->OutputDebug("Unable to validate the address with this host.");
-                fclose($connection);
-                if($this->debug)
-                    $this->OutputDebug("Disconnected.");
-            }
-            else
-            {
-                if($this->debug)
-                    $this->OutputDebug("Failed.");
-            }
-        }
-        return(-1);
-    }
-};
-
-?>