edu.washington.iam.tools.netact.NetactDNSVerifier.java Source code

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Here is the source code for edu.washington.iam.tools.netact.NetactDNSVerifier.java

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/* ========================================================================
 * Copyright (c) 2011 The University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ========================================================================
 */

package edu.washington.iam.tools.netact;

import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.apache.http.client.ResponseHandler;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.params.BasicHttpParams;

import edu.washington.iam.tools.DNSVerifier;
import edu.washington.iam.tools.DNSVerifyException;
import edu.washington.iam.tools.WebClient;

// google-gson
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonElement;
import com.google.gson.JsonArray;
import com.google.gson.JsonPrimitive;

public class NetactDNSVerifier implements DNSVerifier {

    private final Logger log = LoggerFactory.getLogger(getClass());

    /* Netact rest service provides ownership list.
       It is undocumented.  Seems that we have to check for host and domain whether  
       or not the target is a host or a domain.
       */

    private static String hostUrl = null;
    private static String domainUrl = null;
    private WebClient webClient;

    /**
     * Test if a user has ownership of a domain
     *
     * @param id user's uwnetid
     * @param domain to test
     * @param return list of owners (can be null)
     */

    public boolean isOwner(String dns, String id, List<String> owners) throws DNSVerifyException {

        boolean isOwner = false;
        if (id == null)
            id = "";
        log.debug("looking for owner (" + id + ") in " + dns);

        try {
            String[] urls = { hostUrl, domainUrl };
            for (String url : urls) {
                String respString = webClient.simpleRestGet(url + dns);
                // log.debug("got: " + respString);

                JsonParser parser = new JsonParser();
                JsonElement ele = parser.parse(respString);
                if (ele.isJsonObject()) {
                    JsonObject resp = ele.getAsJsonObject();
                    if (resp.get("table").isJsonObject()) {
                        JsonObject tbl = resp.getAsJsonObject("table");
                        if (tbl.get("row").isJsonArray()) {
                            JsonArray ids = tbl.getAsJsonArray("row");
                            for (int i = 0; i < ids.size(); i++) {
                                JsonObject idi = ids.get(i).getAsJsonObject();
                                JsonPrimitive oidu = idi.getAsJsonPrimitive("uwnetid");
                                if (oidu == null)
                                    continue;
                                String oid = oidu.getAsString();
                                if (oid.equals(id)) {
                                    if (owners == null)
                                        return true; // done
                                    isOwner = true;
                                }
                                if (owners != null && !owners.contains(oid))
                                    owners.add(oid);
                            }
                        } else {
                            String oid = tbl.getAsJsonObject("row").getAsJsonPrimitive("uwnetid").getAsString();
                            if (oid.equals(id)) {
                                if (owners == null)
                                    return true; // done
                                isOwner = true;
                            }
                            if (owners != null && !owners.contains(oid))
                                owners.add(oid);
                        }
                    }
                }
            }

        } catch (Exception e) {
            log.debug("netact dns lookup error: " + e);
            throw new DNSVerifyException(e.getMessage() + " : " + e.getCause());
        }

        // do substrings too
        dns = dns.replaceFirst("[^\\.]+\\.", "");
        // log.debug("do substrings: " + dns);
        int p = dns.indexOf(".");
        if (p > 0) {
            if (isOwner(dns, id, owners)) {
                if (owners == null)
                    return true; // done
                isOwner = true;
            }
        }
        return isOwner;
    }

    public boolean isOwner(String dns, String id) throws DNSVerifyException {
        return isOwner(dns, id, null);
    }

    public void setWebClient(WebClient v) {
        webClient = v;
    }

    public void setHostUrl(String v) {
        hostUrl = v;
    }

    public void setDomainUrl(String v) {
        domainUrl = v;
    }

    public void init() {
    }
}