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74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
package de.unibremen.informatik.hets.common.net;
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import java.net.URLConnection;
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import java.net.URL;
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import java.util.Map;
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import java.util.Iterator;
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import java.util.Random;
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import java.io.IOException;
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import java.io.File;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.FileInputStream;
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import de.unibremen.informatik.hets.common.io.IOUtils;
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public class HttpPostMultipart {
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URLConnection connection;
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OutputStream os = null;
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String boundary = "---------------------------" + randomString() + randomString() + randomString();
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private static Random random = new Random();
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protected void write(String s) throws IOException {
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os.write(s.getBytes());
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}
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protected static String randomString() {
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return Long.toString(random.nextLong(), 36);
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}
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public HttpPostMultipart(URL url) throws IOException {
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connection = url.openConnection();
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connection.setDoOutput(true);
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connection.setRequestProperty("Content-Type",
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"multipart/form-data; boundary=" + boundary);
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os = connection.getOutputStream();
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}
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public InputStream post(Map parameters) throws IOException {
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String name;
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Object object;
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if (parameters != null) {
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for (Iterator i = parameters.entrySet().iterator(); i.hasNext();) {
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Map.Entry entry = (Map.Entry)i.next();
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name = entry.getKey().toString();
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object = entry.getValue();
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write("--" + boundary + "\r\n");
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write("Content-Disposition: form-data; name=\"" + name + "\"");
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if (object instanceof File) {
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write("; filename=\"" + ((File)object).getPath() + "\"\r\n");
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String type = connection.guessContentTypeFromName(((File)object).getPath());
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if (type == null)
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type = "application/octet-stream";
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write("Content-Type: " + type + "\r\n");
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write("\r\n");
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IOUtils.copy(new FileInputStream((File)object), os);
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} else {
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write("\r\n");
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write("\r\n");
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write(object.toString());
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}
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write("\r\n");
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}
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}
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write("--" + boundary + "--\r\n");
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os.close();
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return connection.getInputStream();
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}
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public static InputStream post(URL url, Map parameters) throws IOException {
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return new HttpPostMultipart(url).post(parameters);
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}
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}
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