Rule::regexp_eval() - Code Metrics - Inspection of "Added regexp insert in GUI & display" - patrickpr/trapdirector - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( f94f6f...4a1327 )

by Patrick

created 2020-02-06 22:08 UTC

Rule::regexp_eval() A

↳ Parent: Rule

Complexity

Conditions	1
Paths	1

Size

Total Lines	13
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	5
nc	1
nop	1
dl	0
loc	13
rs	10
c	0
b	0
f	0

<?php

namespace Trapdirector;

use Exception;

class Rule
{
    
    /** @var Logging $logging logging class*/
    protected $logging;
    
    /** @var Trap $trapClass */
    protected $trapClass;
    
    /**
     * Setup Rule Class
     * @param Trap $trapClass : To get logging class & plugin class
     */
    function __construct($trapClass)
    {
        $this->trapClass=$trapClass;
        $this->logging=$trapClass->logging;
    }

/**
 * Get full number 
 * @return array<number,string>
 */
    private function get_number($rule,&$item)
    {
        $item2=$item+1;
        while (
            ($item2!=strlen($rule)) 
            && (preg_match('/[\-0-9\.]/',$rule[$item2]))) 
        { 
            $item2++ ;
        }
        $val=substr($rule,$item,$item2-$item);
        $item=$item2;
        //echo "number ".$val."\n";
        
        return array(0,$val);
    }

    private function get_string($rule,&$item)
    {
        $item++;
        $item2=$this->eval_getNext($rule,$item,'"');
        $val=substr($rule,$item,$item2-$item-1);
        $item=$item2;
        //echo "string : ".$val."\n";
        return array(1,$val);
        
    }
    
    /**
     * Parse elements inside () : jumps over "" and count parenthesis.
     * Ex : ( "test" != ")test" & (1==2) ) will return "test" != ")test" & (1==2)
     * @param string $rule : the current rule
     * @param int $item : actual position in rule
     * @throws Exception
     * @return string : everything inside parenthesis
     */
    private function parse_parenthesis(string $rule,int &$item) : string
    {
        $item++;
        $start=$item;
        $parenthesis_count=0;
        while (($item < strlen($rule)) // Not end of string AND
            && ( ($rule[$item] != ')' ) || $parenthesis_count > 0) ) // Closing ')' or embeded ()
        {
            if ($rule[$item] == '"' )
            { // pass through string
                $item++;
                $item=$this->eval_getNext($rule,$item,'"');
            }
            else{
                if ($rule[$item] == '(')
                {
                    $parenthesis_count++;
                }
                if ($rule[$item] == ')')
                {
                    $parenthesis_count--;
                }
                $item++;
            }
        }
        
        if ($item==strlen($rule)) {throw new Exception("no closing () in ".$rule ." at " .$item);}
        $val=substr($rule,$start,$item-$start);
        $item++;
        return $val;
    }

    
    /**
     * Get and eval a grouped condition - ex : (1==1)
     * @param string $rule
     * @param int $item
     * @return array
     */
    private function get_group(string $rule,int &$item) : array
    {
        // gets eveything inside parenthesis
        $val=$this->parse_parenthesis($rule, $item);
        // Returns boolean with evaluation of all inside parenthesis
        $start=0;
        return array(2,$this->evaluation($val,$start));
    }

    private function get_function(string $rule,int &$item) : array
    {
        // function is : __function(param1,param2...)
        $start=$item; 
        while (($item < strlen($rule)) && ($rule[$item] != '(' )) // Not end of string AND not opening '('
        {
            $item++;
        }        
        if ($item==strlen($rule)) {throw new Exception("no opening () for function in ".$rule ." at " .$item);}
        
        // get parameters between parenthesis
        
        $this->parse_parenthesis($rule, $item);
        
        $val=substr($rule,$start,$item-$start);
        
        $this->logging->log('got function ' . $val,DEBUG);
        
        return array(2,$this->trapClass->pluginClass->evaluateFunctionString($val));
        
    }
    
    protected function eval_getElement($rule,&$item)
    {
        if ($item >= strlen($rule))
        {
            throw new Exception("Early end of string ".$rule ." at " .$item );
        }
        while ($rule[$item]==' ') $item++;
        if (preg_match('/[\-0-9\.]/',$rule[$item]))
        { // number
            return $this->get_number($rule, $item);
        }
        if ($rule[$item] == '"')
        { // string
            return $this->get_string($rule, $item);
        }
        
        if ($rule[$item] == '(')
        { // grouping
            return $this->get_group($rule, $item);
        }
        if ($rule[$item] == '_')
        { // function
            return $this->get_function($rule, $item);
        }
        throw new Exception("number/string not found in ".$rule ." at " .$item . ' : ' .$rule[$item]);
        
    }
    
    protected function eval_getNext($rule,$item,$tok)
    {
        while (
            ($rule[$item] != $tok ) 
            && ($item < strlen($rule))) 
        { 
            $item++;
        }
        if ($item==strlen($rule)) {
            throw new Exception("closing '".$tok."' not found in ".$rule ." at " .$item);
        }
        return $item+1;
    }
    
    protected function eval_getOper($rule,&$item)
    {
        while ($rule[$item]==' ') $item++;
        switch ($rule[$item])
        {
            case '<':
                if ($rule[$item+1]=='=') { $item+=2; return array(0,"<=");}
                $item++; return array(0,"<");
            case '>':
                if ($rule[$item+1]=='=') { $item+=2; return array(0,">=");}
                $item++; return array(0,">");
            case '=':
                $item++; return array(0,"=");
            case '!':
                if ($rule[$item+1]=='=') { $item+=2; return array(0,"!=");}
                throw new Exception("Erreur in expr - incorrect operator '!'  found in ".$rule ." at " .$item);
            case '~':
                $item++; return array(0,"~");
            case '|':
                $item++; return array(1,"|");
            case '&':
                $item++; return array(1,"&");
            default	:
                throw new Exception("Erreur in expr - operator not found in ".$rule ." at " .$item);
        }
    }
    
    private function check_negate_first($rule,&$item)
    {
        if ( $rule[$item] == '!') // If '!' found, negate next expression.
        {
            $item++;
            return true;
        }
        else
        {
            return false;
        }
    }

    private function do_compare($val1,$val2,$comp,$negate)
    {
        switch ($comp){
            case '<':	$retVal= ($val1 < $val2); break;
            case '<=':	$retVal= ($val1 <= $val2); break;
            case '>':	$retVal= ($val1 > $val2); break;
            case '>=':	$retVal= ($val1 >= $val2); break;
            case '=':	$retVal= ($val1 == $val2); break;
            case '!=':	$retVal= ($val1 != $val2); break;
            case '~':	$retVal= (preg_match('/'.preg_replace('/"/','',$val2).'/',$val1)); break;
            case '|':	$retVal= ($val1 || $val2); break;
            case '&':	$retVal= ($val1 && $val2); break;
            default:  throw new Exception("Error in expression - unknown comp : ".$comp);
        }
        if ($negate === true) $retVal = ! $retVal; // Inverse result if negate before expression
        
        return $retVal;
    }
    
    /** Evaluation : makes token and evaluate.
     *	Public function for expressions testing
     *	accepts : < > = <= >= !=  (typec = 0)
     *	operators : & | (typec=1)
     *	with : integers/float  (type 0) or strings "" (type 1) or results (type 2)
     *   comparison int vs strings will return null (error)
     *	return : bool or null on error
     */
    public function evaluation($rule,&$item)
    {
        //echo "Evaluation of ".substr($rule,$item)."\n";
        $negate=$this->check_negate_first($rule, $item);
        // First element : number, string or ()
        list($type1,$val1) = $this->eval_getElement($rule,$item);
        //echo "Elmt1: ".$val1."/".$type1." : ".substr($rule,$item)."\n";
        
        if ($item==strlen($rule)) // If only element, return value, but only boolean
        {
            if ($type1 != 2) throw new Exception("Cannot use num/string as boolean : ".$rule);
            if ($negate === true) $val1= ! $val1;
            return $val1;
        }
        
        // Second element : operator
        list($typec,$comp) = $this->eval_getOper($rule,$item);
        //echo "Comp : ".$comp." : ".substr($rule,$item)."\n";
        
        // Third element : number, string or ()
        if ( $rule[$item] == '!') // starts with a ! so evaluate whats next
        {
            $item++;
            if ($typec != 1) throw new Exception("Mixing boolean and comparison : ".$rule);
            $val2= ! $this->evaluation($rule,$item);
            $type2=2; // result is a boolean
        }
        else
        {
            list($type2,$val2) = $this->eval_getElement($rule,$item);
        }
        //echo "Elmt2: ".$val2."/".$type2." : ".substr($rule,$item)."\n";
        
        if ($type1!=$type2)  // cannot compare different types
        {
            throw new Exception("Cannot compare string & number : ".$rule);
        }
        if ($typec==1 && $type1 !=2) // cannot use & or | with string/number
        {
            throw new Exception("Cannot use boolean operators with string & number : ".$rule);
        }
        
        $retVal = $this->do_compare($val1, $val2, $comp, $negate);
        
        if ($item==strlen($rule)) return $retVal; // End of string : return evaluation
        // check for logical operator :
        switch ($rule[$item])
        {
            case '|':	$item++; return ($retVal || $this->evaluation($rule,$item) );
            case '&':	$item++; return ($retVal && $this->evaluation($rule,$item) );
            
            default:  throw new Exception("Erreur in expr - garbadge at end of expression : ".$rule[$item]);
        }
    }
    
    // Remove all whitespaces (when not quoted)
    public function eval_cleanup($rule)
    {
        $item=0;
        $rule2='';
        while ($item < strlen($rule))
        {
            if ($rule[$item]==' ') { $item++; continue; }
            if ($rule[$item]=='"')
            {
                $rule2.=$rule[$item];
                $item++;
                while (($item < strlen($rule)) && ($rule[$item]!='"') )
                {
                    $rule2.=$rule[$item];
                    $item++;
                }
                if ($item == strlen ($rule)) throw new Exception("closing '\"' not found in ".$rule ." at " .$item);
                $rule2.=$rule[$item];
                $item++;
                continue;
            }
            
            $rule2.=$rule[$item];
            $item++;
        }
        
        return $rule2;
    }


    /**
     * Get '*' or '**' and transform in [0-9]+ or .* in return string
     * @param string $oid OID in normal or regexp format. '*' will be escaped ('\*')
     * @return string correct regexp format
     */
    public function regexp_eval(string &$oid)
    {
        // ** replaced by .*
        $oidR=preg_replace('/\*\*/', '.*', $oid);
        // * replaced by [0-9]+
        $oidR=preg_replace('/\*/', '[0-9]+', $oidR);
        
        // replace * with \* in oid for preg_replace
        $oid=preg_replace('/\*/', '\*', $oid);
        
        $this->logging->log('Regexp eval : '.$oid.' / '.$oidR,DEBUG );
        
        return $oidR;
    }
    
    
    /** Evaluation rule (uses eval_* functions recursively)
     *	@param string $rule : rule ( _OID(.1.3.6.1.4.1.8072.2.3.2.1)=_OID(.1.3.6.1.2.1.1.3.0) )
     *  @param array $oidList : OIDs values to sustitute.
     *	@return bool : true : rule match, false : rule don't match , throw exception on error.
     */   
    public function eval_rule($rule,$oidList)
    {
        if ($rule==null || $rule == '') // Empty rule is always true
        {
            return true;
        }
        $matches=array();
        while (preg_match('/_OID\(([0-9\.\*]+)\)/',$rule,$matches) == 1)
        {
            $oid=$matches[1];
            $found=0;
            // Test and transform regexp
            $oidR = $this->regexp_eval($oid);
            
            foreach($oidList as $val)
            {
                if (preg_match("/^$oidR$/",$val->oid) == 1)
                {
                    if (!preg_match('/^-?[0-9]*\.?[0-9]+$/',$val->value))
                    { // If not a number, change " to ' and put " around it
                        $val->value=preg_replace('/"/',"'",$val->value);
                        $val->value='"'.$val->value.'"';
                    }
                    $rep=0;
                    $rule=preg_replace('/_OID\('.$oid.'\)/',$val->value,$rule,-1,$rep);
                    if ($rep==0)
                    {
                        $this->logging->log("Error in rule_eval",WARN,'');
                        return false;
                    }
                    $found=1;
                    break;
                }
            }
            if ($found==0)
            {	// OID not found : throw error
                throw new Exception('OID '.$oid.' not found in trap');
            }
        }
        $item=0;
        $rule=$this->eval_cleanup($rule);
        $this->logging->log('Rule after clenup: '.$rule,INFO );
        
        return  $this->evaluation($rule,$item);
    }
    
}

1			<?php
2
3			namespace Trapdirector;
4
5			use Exception;
6
7			class Rule
8			{
9
10			/** @var Logging $logging logging class*/
11			protected $logging;
12
13			/** @var Trap $trapClass */
14			protected $trapClass;
15
16			/**
17			* Setup Rule Class
18			* @param Trap $trapClass : To get logging class & plugin class
19			*/
20			function __construct($trapClass)
21			{
22			$this->trapClass=$trapClass;
23			$this->logging=$trapClass->logging;
24			}
25
26			/**
27			* Get full number
28			* @return array<number,string>
29			*/
30			private function get_number($rule,&$item)
31			{
32			$item2=$item+1;
33			while (
34			($item2!=strlen($rule))
35			&& (preg_match('/[\-0-9\.]/',$rule[$item2])))
36			{
37			$item2++ ;
38			}
39			$val=substr($rule,$item,$item2-$item);
40			$item=$item2;
41			//echo "number ".$val."\n";
42
43			return array(0,$val);
44			}
45
46			private function get_string($rule,&$item)
47			{
48			$item++;
49			$item2=$this->eval_getNext($rule,$item,'"');
50			$val=substr($rule,$item,$item2-$item-1);
51			$item=$item2;
52			//echo "string : ".$val."\n";
53			return array(1,$val);
54
55			}
56
57			/**
58			* Parse elements inside () : jumps over "" and count parenthesis.
59			* Ex : ( "test" != ")test" & (1==2) ) will return "test" != ")test" & (1==2)
60			* @param string $rule : the current rule
61			* @param int $item : actual position in rule
62			* @throws Exception
63			* @return string : everything inside parenthesis
64			*/
65			private function parse_parenthesis(string $rule,int &$item) : string
66			{
67			$item++;
68			$start=$item;
69			$parenthesis_count=0;
70			while (($item < strlen($rule)) // Not end of string AND
71			&& ( ($rule[$item] != ')' ) \|\| $parenthesis_count > 0) ) // Closing ')' or embeded ()
72			{
73			if ($rule[$item] == '"' )
74			{ // pass through string
75			$item++;
76			$item=$this->eval_getNext($rule,$item,'"');
77			}
78			else{
79			if ($rule[$item] == '(')
80			{
81			$parenthesis_count++;
82			}
83			if ($rule[$item] == ')')
84			{
85			$parenthesis_count--;
86			}
87			$item++;
88			}
89			}
90
91			if ($item==strlen($rule)) {throw new Exception("no closing () in ".$rule ." at " .$item);}
92			$val=substr($rule,$start,$item-$start);
93			$item++;
94			return $val;
95			}
96
97
98			/**
99			* Get and eval a grouped condition - ex : (1==1)
100			* @param string $rule
101			* @param int $item
102			* @return array
103			*/
104			private function get_group(string $rule,int &$item) : array
105			{
106			// gets eveything inside parenthesis
107			$val=$this->parse_parenthesis($rule, $item);
108			// Returns boolean with evaluation of all inside parenthesis
109			$start=0;
110			return array(2,$this->evaluation($val,$start));
111			}
112
113			private function get_function(string $rule,int &$item) : array
114			{
115			// function is : __function(param1,param2...)
116			$start=$item;
117			while (($item < strlen($rule)) && ($rule[$item] != '(' )) // Not end of string AND not opening '('
118			{
119			$item++;
120			}
121			if ($item==strlen($rule)) {throw new Exception("no opening () for function in ".$rule ." at " .$item);}
122
123			// get parameters between parenthesis
124
125			$this->parse_parenthesis($rule, $item);
126
127			$val=substr($rule,$start,$item-$start);
128
129			$this->logging->log('got function ' . $val,DEBUG);
130
131			return array(2,$this->trapClass->pluginClass->evaluateFunctionString($val));
132
133			}
134
135			protected function eval_getElement($rule,&$item)
136			{
137			if ($item >= strlen($rule))
138			{
139			throw new Exception("Early end of string ".$rule ." at " .$item );
140			}
141			while ($rule[$item]==' ') $item++;
142			if (preg_match('/[\-0-9\.]/',$rule[$item]))
143			{ // number
144			return $this->get_number($rule, $item);
145			}
146			if ($rule[$item] == '"')
147			{ // string
148			return $this->get_string($rule, $item);
149			}
150
151			if ($rule[$item] == '(')
152			{ // grouping
153			return $this->get_group($rule, $item);
154			}
155			if ($rule[$item] == '_')
156			{ // function
157			return $this->get_function($rule, $item);
158			}
159			throw new Exception("number/string not found in ".$rule ." at " .$item . ' : ' .$rule[$item]);
160
161			}
162
163			protected function eval_getNext($rule,$item,$tok)
164			{
165			while (
166			($rule[$item] != $tok )
167			&& ($item < strlen($rule)))
168			{
169			$item++;
170			}
171			if ($item==strlen($rule)) {
172			throw new Exception("closing '".$tok."' not found in ".$rule ." at " .$item);
173			}
174			return $item+1;
175			}
176
177			protected function eval_getOper($rule,&$item)
178			{
179			while ($rule[$item]==' ') $item++;
180			switch ($rule[$item])
181			{
182			case '<':
183			if ($rule[$item+1]=='=') { $item+=2; return array(0,"<=");}
184			$item++; return array(0,"<");
185			case '>':
186			if ($rule[$item+1]=='=') { $item+=2; return array(0,">=");}
187			$item++; return array(0,">");
188			case '=':
189			$item++; return array(0,"=");
190			case '!':
191			if ($rule[$item+1]=='=') { $item+=2; return array(0,"!=");}
192			throw new Exception("Erreur in expr - incorrect operator '!' found in ".$rule ." at " .$item);
193			case '~':
194			$item++; return array(0,"~");
195			case '\|':
196			$item++; return array(1,"\|");
197			case '&':
198			$item++; return array(1,"&");
199			default :
200			throw new Exception("Erreur in expr - operator not found in ".$rule ." at " .$item);
201			}
202			}
203
204			private function check_negate_first($rule,&$item)
205			{
206			if ( $rule[$item] == '!') // If '!' found, negate next expression.
207			{
208			$item++;
209			return true;
210			}
211			else
212			{
213			return false;
214			}
215			}
216
217			private function do_compare($val1,$val2,$comp,$negate)
218			{
219			switch ($comp){
220			case '<': $retVal= ($val1 < $val2); break;
221			case '<=': $retVal= ($val1 <= $val2); break;
222			case '>': $retVal= ($val1 > $val2); break;
223			case '>=': $retVal= ($val1 >= $val2); break;
224			case '=': $retVal= ($val1 == $val2); break;
225			case '!=': $retVal= ($val1 != $val2); break;
226			case '~': $retVal= (preg_match('/'.preg_replace('/"/','',$val2).'/',$val1)); break;
227			case '\|': $retVal= ($val1 \|\| $val2); break;
228			case '&': $retVal= ($val1 && $val2); break;
229			default: throw new Exception("Error in expression - unknown comp : ".$comp);
230			}
231			if ($negate === true) $retVal = ! $retVal; // Inverse result if negate before expression
232
233			return $retVal;
234			}
235
236			/** Evaluation : makes token and evaluate.
237			* Public function for expressions testing
238			* accepts : < > = <= >= != (typec = 0)
239			* operators : & \| (typec=1)
240			* with : integers/float (type 0) or strings "" (type 1) or results (type 2)
241			* comparison int vs strings will return null (error)
242			* return : bool or null on error
243			*/
244			public function evaluation($rule,&$item)
245			{
246			//echo "Evaluation of ".substr($rule,$item)."\n";
247			$negate=$this->check_negate_first($rule, $item);
248			// First element : number, string or ()
249			list($type1,$val1) = $this->eval_getElement($rule,$item);
250			//echo "Elmt1: ".$val1."/".$type1." : ".substr($rule,$item)."\n";
251
252			if ($item==strlen($rule)) // If only element, return value, but only boolean
253			{
254			if ($type1 != 2) throw new Exception("Cannot use num/string as boolean : ".$rule);
255			if ($negate === true) $val1= ! $val1;
256			return $val1;
257			}
258
259			// Second element : operator
260			list($typec,$comp) = $this->eval_getOper($rule,$item);
261			//echo "Comp : ".$comp." : ".substr($rule,$item)."\n";
262
263			// Third element : number, string or ()
264			if ( $rule[$item] == '!') // starts with a ! so evaluate whats next
265			{
266			$item++;
267			if ($typec != 1) throw new Exception("Mixing boolean and comparison : ".$rule);
268			$val2= ! $this->evaluation($rule,$item);
269			$type2=2; // result is a boolean
270			}
271			else
272			{
273			list($type2,$val2) = $this->eval_getElement($rule,$item);
274			}
275			//echo "Elmt2: ".$val2."/".$type2." : ".substr($rule,$item)."\n";
276
277			if ($type1!=$type2) // cannot compare different types
278			{
279			throw new Exception("Cannot compare string & number : ".$rule);
280			}
281			if ($typec==1 && $type1 !=2) // cannot use & or \| with string/number
282			{
283			throw new Exception("Cannot use boolean operators with string & number : ".$rule);
284			}
285
286			$retVal = $this->do_compare($val1, $val2, $comp, $negate);
287
288			if ($item==strlen($rule)) return $retVal; // End of string : return evaluation
289			// check for logical operator :
290			switch ($rule[$item])
291			{
292			case '\|': $item++; return ($retVal \|\| $this->evaluation($rule,$item) );
293			case '&': $item++; return ($retVal && $this->evaluation($rule,$item) );
294
295			default: throw new Exception("Erreur in expr - garbadge at end of expression : ".$rule[$item]);
296			}
297			}
298
299			// Remove all whitespaces (when not quoted)
300			public function eval_cleanup($rule)
301			{
302			$item=0;
303			$rule2='';
304			while ($item < strlen($rule))
305			{
306			if ($rule[$item]==' ') { $item++; continue; }
307			if ($rule[$item]=='"')
308			{
309			$rule2.=$rule[$item];
310			$item++;
311			while (($item < strlen($rule)) && ($rule[$item]!='"') )
312			{
313			$rule2.=$rule[$item];
314			$item++;
315			}
316			if ($item == strlen ($rule)) throw new Exception("closing '\"' not found in ".$rule ." at " .$item);
317			$rule2.=$rule[$item];
318			$item++;
319			continue;
320			}
321
322			$rule2.=$rule[$item];
323			$item++;
324			}
325
326			return $rule2;
327			}
328
329
330			/**
331			* Get '' or '' and transform in [0-9]+ or . in return string
332			* @param string $oid OID in normal or regexp format. '' will be escaped ('\')
333			* @return string correct regexp format
334			*/
335			public function regexp_eval(string &$oid)
336			{
337			// ** replaced by .*
338			$oidR=preg_replace('/\\/', '.*', $oid);
339			// * replaced by [0-9]+
340			$oidR=preg_replace('/\*/', '[0-9]+', $oidR);
341
342			// replace * with \* in oid for preg_replace
343			$oid=preg_replace('/\/', '\', $oid);
344
345			$this->logging->log('Regexp eval : '.$oid.' / '.$oidR,DEBUG );
346
347			return $oidR;
348			}
349
350
351			/** Evaluation rule (uses eval_* functions recursively)
352			* @param string $rule : rule ( _OID(.1.3.6.1.4.1.8072.2.3.2.1)=_OID(.1.3.6.1.2.1.1.3.0) )
353			* @param array $oidList : OIDs values to sustitute.
354			* @return bool : true : rule match, false : rule don't match , throw exception on error.
355			*/
356			public function eval_rule($rule,$oidList)
357			{
358			if ($rule==null \|\| $rule == '') // Empty rule is always true
359			{
360			return true;
361			}
362			$matches=array();
363			while (preg_match('/_OID\(([0-9\.\*]+)\)/',$rule,$matches) == 1)
364			{
365			$oid=$matches[1];
366			$found=0;
367			// Test and transform regexp
368			$oidR = $this->regexp_eval($oid);
369
370			foreach($oidList as $val)
371			{
372			if (preg_match("/^$oidR$/",$val->oid) == 1)
373			{
374			if (!preg_match('/^-?[0-9]*\.?[0-9]+$/',$val->value))
375			{ // If not a number, change " to ' and put " around it
376			$val->value=preg_replace('/"/',"'",$val->value);
377			$val->value='"'.$val->value.'"';
378			}
379			$rep=0;
380			$rule=preg_replace('/_OID\('.$oid.'\)/',$val->value,$rule,-1,$rep);
381			if ($rep==0)
382			{
383			$this->logging->log("Error in rule_eval",WARN,'');
384			return false;
385			}
386			$found=1;
387			break;
388			}
389			}
390			if ($found==0)
391			{ // OID not found : throw error
392			throw new Exception('OID '.$oid.' not found in trap');
393			}
394			}
395			$item=0;
396			$rule=$this->eval_cleanup($rule);
397			$this->logging->log('Rule after clenup: '.$rule,INFO );
398
399			return $this->evaluation($rule,$item);
400			}
401
402			}

patrickpr / trapdirector

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Rule::regexp_eval() A

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