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package eu.dnetlib.repo.manager.service.security;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import org.apache.log4j.Logger;
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import org.springframework.security.core.GrantedAuthority;
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import org.springframework.security.core.authority.SimpleGrantedAuthority;
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import java.net.URLDecoder;
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import java.util.*;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class AuthoritiesMapper {
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private static final Logger logger = Logger.getLogger(AuthoritiesMapper.class);
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private static final String ENTITLEMENT_REGEX = "urn:geant:openaire[.]eu:group:([^:]*):?(.*)?:role=member#aai[.]openaire[.]eu";
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private AuthoritiesMapper() {
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}
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public static Collection<GrantedAuthority> map(JsonArray entitlements) {
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HashSet<GrantedAuthority> authorities = new HashSet<>();
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entityRoles(entitlements, authorities);
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return authorities;
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}
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public static List<String> entitlementRoles(JsonArray entitlements) {
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List<String> roles = new ArrayList<>();
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if (entitlements != null) {
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for (JsonElement obj : entitlements) {
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Matcher matcher = Pattern.compile(ENTITLEMENT_REGEX).matcher(obj.getAsString());
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if (matcher.find()) {
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StringBuilder sb = new StringBuilder();
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if (matcher.group(1) != null && matcher.group(1).length() > 0) {
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sb.append(matcher.group(1));
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}
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if (matcher.group(2).length() > 0) {
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sb.append(":");
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sb.append(matcher.group(2));
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}
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String role = sb.toString().replace("+", " ");
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roles.add(URLDecoder.decode(role));
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}
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}
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}
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return roles;
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}
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private static void entityRoles(JsonArray entitlements, Set<GrantedAuthority> authorities) {
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if (entitlements != null) {
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for (JsonElement obj : entitlements) {
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Matcher matcher = Pattern.compile(ENTITLEMENT_REGEX).matcher(obj.getAsString());
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if (matcher.find()) {
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StringBuilder sb = new StringBuilder();
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if (matcher.group(1) != null && matcher.group(1).length() > 0) {
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sb.append(matcher.group(1).replace("+-+", "_").replaceAll("[+.]", "_").toUpperCase());
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}
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if (matcher.group(2).length() > 0) {
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sb.append("_");
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if (matcher.group(2).equals("admins")) {
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sb.append("MANAGER");
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} else {
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sb.append(matcher.group(2).toUpperCase());
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}
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}
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authorities.add(new SimpleGrantedAuthority(sb.toString()));
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}
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}
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}
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}
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}
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