ic-client/src/main/java/org/gcube/resources/discovery/icclient/Helper.java

211 lines
7.5 KiB
Java

package org.gcube.resources.discovery.icclient;
import static org.gcube.common.scope.impl.ScopeBean.Type.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map.Entry;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.common.scope.impl.ScopeBean;
import org.gcube.resources.discovery.icclient.stubs.MalformedQueryException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Helper {
private static final Logger log = LoggerFactory.getLogger(Helper.class);
public static String queryAddAuthenticationControl(String expression) throws MalformedQueryException
{
String scope = ScopeProvider.instance.get();
if (scope==null || !new ScopeBean(scope).is(VRE))
return expression;
int wherePathIndex=0;
int returnPathIndex=0;
int collIndexEnd=0;
int collIndexStart=0;
boolean whereFound=false;
String forInsertFinal="";
String whereInsertFinal="";
String temp="";
HashMap<String, String> varReplacementMap = new HashMap<String, String>();
String forPropertiesString="\n *VAR* in *COLLECTION*/Data \n"; ///child::*[local-name()='Scope']
String forString=" *VAR* in *COLLECTION*/Scopes \n";
String authString=" (functx:is-value-in-sequence('"+scope+"',*VAR*/child::*[local-name()='Scope']/text()) or functx:is-value-in-sequence('"+scope.substring(0,scope.lastIndexOf("/"))+"',*VAR*/child::*[local-name()='Scope']/text())) ";
String authStringNormal=" (functx:is-value-in-sequence('"+scope+"',*VAR*/child::*[local-name()='Scope']/text())) ";
String queryFiltered;
List<Boolean> collInsert= new ArrayList<Boolean>();
Pattern wherePattern= Pattern.compile("where");
//mathcing , $result in $outer/Data
Pattern inSubResult= Pattern.compile("(,\\s*([^\\s]*)\\s*in\\s*([^\\s]*)\\s*)(where|order\\sby|return)");
Pattern returnPattern= Pattern.compile("order\\sby|return");
Pattern collectionPattern= Pattern.compile("[^\\s]*\\s*in\\s*collection\\s*[^\\s,]*");
Pattern varPattern= Pattern.compile("[^\\s]*");
Pattern resourcePattern= Pattern.compile("\\scollection\\s*\\([^\\)]*.*/Resource", Pattern.DOTALL);
Pattern propertiesPattern=Pattern.compile("\\scollection\\s*\\([^\\)]*.*/Document", Pattern.DOTALL);
Matcher varMat;
Matcher resourceMat;
Matcher collMat=collectionPattern.matcher(expression);
collMat.reset();
String forStringTemp="";
while (collMat.find(collIndexEnd))
{
try{
collIndexEnd=collMat.end();
temp=collMat.group();
collIndexStart=collMat.start();
}catch(IllegalStateException e){
log.warn("error parsing collection statement");
}
varMat= varPattern.matcher(temp);
boolean propBool=false;
if (temp.contains("/Properties"))
{
resourceMat= propertiesPattern.matcher(temp);
propBool=true;
}
else resourceMat=resourcePattern.matcher(temp);
varMat.lookingAt();
resourceMat.find();
String tempPath="";
try{
tempPath= temp.substring(resourceMat.end());
if (propBool)
{
String resourceMatString= resourceMat.group();
forStringTemp=forPropertiesString.replace("*VAR*","$entry"+collInsert.size()+"ValueAuth" ).replace("*COLLECTION*", resourceMatString );
String oldVar = varMat.group();
String newVar = "$entry"+collInsert.size()+"ValueAuth";
collInsert.add(true);
varReplacementMap.put(oldVar, newVar+"/.."+tempPath);
}
else
{
String resourceMatString= resourceMat.group();
String oldVar = varMat.group();
String newVar = "$entry"+collInsert.size()+"ValueAuth";
forStringTemp=forString.replace("*VAR*",newVar ).replace("*COLLECTION*",resourceMatString );
collInsert.add(resourceMatString.contains("/Profiles/RunningInstance") || resourceMatString.contains("/Profiles/GHN") || resourceMatString.contains("/Profiles/Service"));
varReplacementMap.put(oldVar, newVar+"/.."+tempPath);
}
}catch(IllegalStateException e){ log.debug("error parsing statement");}
expression=expression.substring(0, collIndexStart)+ forStringTemp +expression.substring(collIndexEnd);
collMat=collectionPattern.matcher(expression);
}
if (collInsert.size()==0) return expression;
//concat the let statements
for (int i=0; i<collInsert.size(); i++)
if (i==collInsert.size()-1){
if(collInsert.get(i))
whereInsertFinal+=authString.replace("*VAR*", "$entry"+i+"ValueAuth");
else whereInsertFinal+=authStringNormal.replace("*VAR*", "$entry"+i+"ValueAuth");
}else{
if(collInsert.get(i))
whereInsertFinal+=authString.replace("*VAR*", "$entry"+i+"ValueAuth")+" and " ;
else whereInsertFinal+=authStringNormal.replace("*VAR*", "$entry"+i+"ValueAuth")+" and " ;
}
Matcher whereMat=wherePattern.matcher(expression);
Matcher inSubResultMat= inSubResult.matcher(expression);
Matcher returnMat=returnPattern.matcher(expression);
whereMat.reset();
returnMat.reset();
whereFound=whereMat.find();
returnMat.find();
try{
inSubResultMat.find();
}catch(Exception e){}
try{
wherePathIndex=whereMat.start();
}catch(IllegalStateException e){ log.debug("where not found");}
try{
returnPathIndex=returnMat.start();
}catch(IllegalStateException e){ log.error("error parsing return statement"); throw new MalformedQueryException("error parsing return statement");}
if (whereFound)
queryFiltered=expression.substring(0,wherePathIndex)+"\nwhere "+whereInsertFinal
+" and ("+expression.substring(wherePathIndex+5, returnPathIndex)+" ) \n"+expression.substring(returnPathIndex);
else
queryFiltered=expression.substring(0,returnPathIndex)+ "\nwhere "+whereInsertFinal+" \n "+expression.substring(returnPathIndex);
//logger.trace("queryFiltered to match: " + queryFiltered);
Pattern letPattern=Pattern.compile("let.*:=", Pattern.DOTALL);
Matcher letMat=letPattern.matcher(queryFiltered);
whereMat=wherePattern.matcher(queryFiltered);
whereMat.reset();
whereMat.find();
boolean letFound=letMat.find(collIndexStart);
int letPathIndex=0;
try{
wherePathIndex=whereMat.start();
if (letFound) letPathIndex=letMat.start();
}catch(IllegalStateException e){ log.error("error parsing let statement"); throw new MalformedQueryException("error parsing let statement");}
if (!letFound) {
queryFiltered=queryFiltered.substring(0,wherePathIndex)+forInsertFinal +queryFiltered.substring(wherePathIndex);
}
else {
queryFiltered=queryFiltered.substring(0,letPathIndex)+forInsertFinal+queryFiltered.substring(letPathIndex);
}
for (Entry<String, String> entry: varReplacementMap.entrySet())
queryFiltered = queryFiltered.replace(entry.getKey(), entry.getValue());
String functionContainsDeclaration =" declare namespace functx = \"http://www.functx.com\"; declare function functx:is-value-in-sequence "+
" ( $value as xs:anyAtomicType? , $seq as xs:anyAtomicType* ) as xs:boolean { $value = $seq } ; \n";
Pattern declarePattern=Pattern.compile("(\\s*declare namespace[^;]*;)*");
Matcher declareMat=declarePattern.matcher(queryFiltered);
boolean declareFound = declareMat.find(0);
int declareIndex = 0;
if (declareFound){
declareIndex = declareMat.end();
queryFiltered = queryFiltered.substring(0, declareIndex)+functionContainsDeclaration+queryFiltered.substring(declareIndex);
} else
queryFiltered= functionContainsDeclaration +queryFiltered;
queryFiltered = queryFiltered.replaceAll("text() ne ","text() != ");
log.info("submitting filtered query: {}",queryFiltered);
return queryFiltered;
}
}