jenkins.plugins.elanceodesk.workplace.notifier.HttpWorker.java Source code

Introduction

Here is the source code for jenkins.plugins.elanceodesk.workplace.notifier.HttpWorker.java

Source

/**
 * 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 jenkins.plugins.elanceodesk.workplace.notifier;

import hudson.ProxyConfiguration;

import java.io.PrintStream;
import java.io.UnsupportedEncodingException;

import jenkins.model.Jenkins;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.commons.httpclient.methods.StringRequestEntity;

/**
 * 
 * Makes http post requests in a separate thread.
 *
 */
public class HttpWorker implements Runnable {

    private PrintStream logger;

    private String url;

    private String data;

    private int timeout;

    private int retries;

    public HttpWorker(String url, String data, int timeout, int retries, PrintStream logger) {
        this.url = url;
        this.data = data;
        this.timeout = timeout;
        this.logger = logger;
        this.retries = retries;
    }

    public void run() {
        int tried = 0;
        boolean success = false;
        HttpClient client = getHttpClient();
        client.getParams().setConnectionManagerTimeout(timeout);
        do {
            tried++;
            RequestEntity requestEntity;
            try {
                requestEntity = new StringRequestEntity(data, "application/json", "UTF-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace(logger);
                break;
            }
            logger.println(String.format("Posting data to webhook - %s. Already Tried %s times", url, tried));
            PostMethod post = new PostMethod(url);
            try {
                post.setRequestEntity(requestEntity);
                int responseCode = client.executeMethod(post);
                if (responseCode != HttpStatus.SC_OK) {
                    String response = post.getResponseBodyAsString();
                    logger.println(String.format(
                            "Posting data to - %s may have failed. Webhook responded with status code - %s", url,
                            responseCode));
                    logger.println(String.format("Message from webhook - %s", response));

                } else {
                    success = true;
                    logger.println(String.format("Posting data to webhook - %s completed ", url));
                }
            } catch (Exception e) {
                logger.println(String.format("Failed to post data to webhook - %s", url));
                e.printStackTrace(logger);
            } finally {
                post.releaseConnection();
            }
        } while (tried < retries && !success);

    }

    private HttpClient getHttpClient() {
        HttpClient client = new HttpClient();
        if (Jenkins.getInstance() != null) {
            ProxyConfiguration proxy = Jenkins.getInstance().proxy;
            if (proxy != null) {
                client.getHostConfiguration().setProxy(proxy.name, proxy.port);
                String username = proxy.getUserName();
                String password = proxy.getPassword();
                // Consider it to be passed if username specified. Sufficient?
                if (username != null && !"".equals(username.trim())) {
                    logger.println("Using proxy authentication (user=" + username + ")");
                    // http://hc.apache.org/httpclient-3.x/authentication.html#Proxy_Authentication
                    // and
                    // http://svn.apache.org/viewvc/httpcomponents/oac.hc3x/trunk/src/examples/BasicAuthenticationExample.java?view=markup
                    client.getState().setProxyCredentials(AuthScope.ANY,
                            new UsernamePasswordCredentials(username, password));
                }
            }
        }
        return client;
    }
}