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path: root/src/main/java/linaro/pubapi/LinaroPubAPIKey.java
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package linaro.pubapi;

import java.io.IOException;

import hudson.AbortException;
import hudson.Extension;
import hudson.Launcher;
import hudson.model.AbstractBuild;
import hudson.model.AbstractProject;
import hudson.model.BuildListener;
import hudson.model.FreeStyleProject;
import hudson.model.ParametersAction;
import hudson.model.StringParameterValue;
import hudson.tasks.BuildStepDescriptor;
import hudson.tasks.Builder;

import org.kohsuke.stapler.DataBoundConstructor;
import org.kohsuke.stapler.StaplerRequest;

import net.sf.json.JSONObject;

import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.*;
import org.apache.commons.httpclient.params.HttpMethodParams;

/**
 * @author Paul Sokolovsky
 */
public class LinaroPubAPIKey extends Builder {

    @DataBoundConstructor
    public LinaroPubAPIKey() {
    }


    @Override
    public Descriptor getDescriptor() {
        return (Descriptor) super.getDescriptor();
    }

    @Extension
    public static class Descriptor extends BuildStepDescriptor<Builder> {

        private String secretKey;
        private String apiURL;
        // Using public members alleviates us from creating getters/setters
        public String defaultNotBefore;
        public String defaultNotAfter;

        public Descriptor() {
            load();
        }

        public String getPubAPIURL() {
            return apiURL;
        }

        public void setPubAPIURL(String apiURL) {
            this.apiURL = apiURL;
        }

        public String getPubAPISecretKey() {
            return secretKey;
        }

        public void setPubAPISecretKey(String secretKey) {
            this.secretKey = secretKey;
        }

        @Override
        public boolean configure(StaplerRequest req, JSONObject json) throws FormException {
            req.bindJSON(this, json.getJSONObject("linaropubapi"));
            save();
            return true;
        }

        @Override
        public boolean isApplicable(Class<? extends AbstractProject> jobType) {
            return FreeStyleProject.class.isAssignableFrom(jobType);
        }

        @Override
        public String getDisplayName() {
            return "Linaro Publishing API Token";
        }

    }

    @Override
    public boolean perform(AbstractBuild<?,?> build, Launcher launcher, BuildListener listener)
            throws InterruptedException, IOException {
        HttpClient client = new HttpClient();
        String url = getDescriptor().getPubAPIURL();
        PostMethod method = new PostMethod(url);
        method.setRequestHeader("AuthToken", getDescriptor().getPubAPISecretKey());
        method.addParameter("not_valid_til", Integer.toString(Integer.parseInt(getDescriptor().defaultNotBefore) * 60));
        method.addParameter("expires", Integer.toString(Integer.parseInt(getDescriptor().defaultNotAfter) * 60));

        // Auto-retry once on some (connection) errors
        // Note: for some connection issues, there's very long timeouts, so
        // having anything more than 1 here contradicts "fail fast" approach.
        // Disable auto-retry altogether for now - note that there's autoretry
        // by default.
        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
                new DefaultHttpMethodRetryHandler(0, false));

        String token = null;
        try {
            int statusCode = client.executeMethod(method);
            //System.out.println("Status: " + method.getStatusLine());

            if (statusCode != 201) {
                System.err.println("Method failed: " + method.getStatusLine());
                throw new AbortException("Unable to get publishing key: " + method.getStatusLine());
            }
            String loc = method.getResponseHeader("Location").getValue();
            System.out.println("Token URL: " + loc);
            token = loc.substring(loc.lastIndexOf("/") + 1);

        } catch (HttpException e) {
            System.err.println("Fatal protocol violation: " + e.getMessage());
            e.printStackTrace();
            throw new AbortException("Unable to get publishing key: " + e.getMessage());
        } catch (IOException e) {
            System.err.println("Fatal transport error for '" + url + "': " + e.getMessage());
            e.printStackTrace();
            throw new AbortException("Unable to get publishing key: " + e.getMessage());
        } finally {
            // Release the connection
            method.releaseConnection();
        }

        build.addAction(new ParametersAction(new StringParameterValue("PUBLISH_TOKEN", token)));
        return true;
    }
}