--- /dev/null
+package com.myjavatools.web;
+
+import java.net.URLConnection;
+import java.net.URL;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.io.File;
+import java.io.InputStream;
+import java.util.Random;
+import java.io.OutputStream;
+import java.io.FileInputStream;
+import java.util.Iterator;
+
+/**
+ * <p>Title: Client HTTP Request class</p>
+ * <p>Description: this class helps to send POST HTTP requests with various form data,
+ * including files. Cookies can be added to be included in the request.</p>
+ * <p>Modified by Ted Pearson(ted@tedpearson.com) 5/4/09</p>
+ *
+ * @author Vlad Patryshev
+ * @version 1.0
+ */
+public class ClientHttpRequest {
+ URLConnection connection;
+ OutputStream os = null;
+ Map cookies = new HashMap();
+
+ protected void connect() throws IOException {
+ if (os == null) os = connection.getOutputStream();
+ }
+
+ protected void write(char c) throws IOException {
+ connect();
+ os.write(c);
+ }
+
+ protected void write(String s) throws IOException {
+ connect();
+ os.write(s.getBytes());
+ }
+
+ protected void newline() throws IOException {
+ connect();
+ write("\r\n");
+ }
+
+ protected void writeln(String s) throws IOException {
+ connect();
+ write(s);
+ newline();
+ }
+
+ private static Random random = new Random();
+
+ protected static String randomString() {
+ return Long.toString(random.nextLong(), 36);
+ }
+
+ String boundary = "---------------------------" + randomString() + randomString() + randomString();
+
+ private void boundary() throws IOException {
+ write("--");
+ write(boundary);
+ }
+
+ /**
+ * Creates a new multipart POST HTTP request on a freshly opened URLConnection
+ *
+ * @param connection an already open URL connection
+ * @throws IOException
+ */
+ public ClientHttpRequest(URLConnection connection) throws IOException {
+ this.connection = connection;
+ connection.setDoOutput(true);
+ connection.setRequestProperty("Content-Type",
+ "multipart/form-data; boundary=" + boundary);
+ }
+
+ /**
+ * Creates a new multipart POST HTTP request for a specified URL
+ *
+ * @param url the URL to send request to
+ * @throws IOException
+ */
+ public ClientHttpRequest(URL url) throws IOException {
+ this(url.openConnection());
+ }
+
+ /**
+ * Creates a new multipart POST HTTP request for a specified URL string
+ *
+ * @param urlString the string representation of the URL to send request to
+ * @throws IOException
+ */
+ public ClientHttpRequest(String urlString) throws IOException {
+ this(new URL(urlString));
+ }
+
+
+ private void postCookies() {
+ StringBuffer cookieList = new StringBuffer();
+
+ for (Iterator i = cookies.entrySet().iterator(); i.hasNext();) {
+ Map.Entry entry = (Map.Entry)(i.next());
+ cookieList.append(entry.getKey().toString() + "=" + entry.getValue());
+
+ if (i.hasNext()) {
+ cookieList.append("; ");
+ }
+ }
+ if (cookieList.length() > 0) {
+ connection.setRequestProperty("Cookie", cookieList.toString());
+ }
+ }
+
+ /**
+ * adds a cookie to the requst
+ * @param name cookie name
+ * @param value cookie value
+ * @throws IOException
+ */
+ public void setCookie(String name, String value) throws IOException {
+ cookies.put(name, value);
+ }
+
+ /**
+ * adds cookies to the request
+ * @param cookies the cookie "name-to-value" map
+ * @throws IOException
+ */
+ public void setCookies(Map cookies) throws IOException {
+ if (cookies == null) return;
+ this.cookies.putAll(cookies);
+ }
+
+ /**
+ * adds cookies to the request
+ * @param cookies array of cookie names and values (cookies[2*i] is a name, cookies[2*i + 1] is a value)
+ * @throws IOException
+ */
+ public void setCookies(String[] cookies) throws IOException {
+ if (cookies == null) return;
+ for (int i = 0; i < cookies.length - 1; i+=2) {
+ setCookie(cookies[i], cookies[i+1]);
+ }
+ }
+
+ private void writeName(String name) throws IOException {
+ newline();
+ write("Content-Disposition: form-data; name=\"");
+ write(name);
+ write('"');
+ }
+
+ /**
+ * adds a string parameter to the request
+ * @param name parameter name
+ * @param value parameter value
+ * @throws IOException
+ */
+ public void setParameter(String name, String value) throws IOException {
+ boundary();
+ writeName(name);
+ newline(); newline();
+ writeln(value);
+ }
+
+ private static void pipe(InputStream in, OutputStream out) throws IOException {
+ byte[] buf = new byte[500000];
+ int nread;
+ int navailable;
+ int total = 0;
+ synchronized (in) {
+ while((nread = in.read(buf, 0, buf.length)) >= 0) {
+ out.write(buf, 0, nread);
+ total += nread;
+ }
+ }
+ out.flush();
+ buf = null;
+ }
+
+ /**
+ * adds a file parameter to the request
+ * @param name parameter name
+ * @param filename the name of the file
+ * @param is input stream to read the contents of the file from
+ * @throws IOException
+ */
+ public void setParameter(String name, String filename, InputStream is) throws IOException {
+ String type = connection.guessContentTypeFromName(filename);
+ if (type == null) type = "application/octet-stream";
+ setParameter(name, filename, is, type);
+ }
+
+ /**
+ * adds a file parameter to the request
+ * @param name parameter name
+ * @param filename the name of the file
+ * @param is input stream to read the contents of the file from
+ * @param type Content-Type of the file
+ * @throws IOException
+ */
+ public void setParameter(String name, String filename, InputStream is, String type) throws IOException {
+ boundary();
+ writeName(name);
+ write("; filename=\"");
+ write(filename);
+ write('"');
+ newline();
+ write("Content-Type: ");
+ writeln(type);
+ newline();
+ pipe(is, os);
+ newline();
+ }
+
+ /**
+ * adds a file parameter to the request
+ * @param name parameter name
+ * @param file the file to upload
+ * @throws IOException
+ */
+ public void setParameter(String name, File file) throws IOException {
+ setParameter(name, file.getPath(), new FileInputStream(file));
+ }
+
+ /**
+ * adds a parameter to the request; if the parameter is a File, the file is uploaded, otherwise the string value of the parameter is passed in the request
+ * @param name parameter name
+ * @param object parameter value, a File or anything else that can be stringified
+ * @throws IOException
+ */
+ public void setParameter(String name, Object object) throws IOException {
+ if (object instanceof File) {
+ setParameter(name, (File) object);
+ } else {
+ setParameter(name, object.toString());
+ }
+ }
+
+ /**
+ * adds parameters to the request
+ * @param parameters "name-to-value" map of parameters; if a value is a file, the file is uploaded, otherwise it is stringified and sent in the request
+ * @throws IOException
+ */
+ public void setParameters(Map parameters) throws IOException {
+ if (parameters == null) return;
+ for (Iterator i = parameters.entrySet().iterator(); i.hasNext();) {
+ Map.Entry entry = (Map.Entry)i.next();
+ setParameter(entry.getKey().toString(), entry.getValue());
+ }
+ }
+
+ /**
+ * adds parameters to the request
+ * @param parameters array of parameter names and values (parameters[2*i] is a name, parameters[2*i + 1] is a value); if a value is a file, the file is uploaded, otherwise it is stringified and sent in the request
+ * @throws IOException
+ */
+ public void setParameters(Object[] parameters) throws IOException {
+ if (parameters == null) return;
+ for (int i = 0; i < parameters.length - 1; i+=2) {
+ setParameter(parameters[i].toString(), parameters[i+1]);
+ }
+ }
+
+ /**
+ * posts the requests to the server, with all the cookies and parameters that were added
+ * @return input stream with the server response
+ * @throws IOException
+ */
+ public InputStream post() throws IOException {
+ boundary();
+ writeln("--");
+ os.close();
+ InputStream tis;
+ try {
+ tis = connection.getInputStream();
+ } catch (IOException e) {
+ tis = ((java.net.HttpURLConnection) connection).getErrorStream();
+ }
+ return tis;
+ }
+
+ /**
+ * posts the requests to the server, with all the cookies and parameters that were added before (if any), and with parameters that are passed in the argument
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameters
+ */
+ public InputStream post(Map parameters) throws IOException {
+ setParameters(parameters);
+ return post();
+ }
+
+ /**
+ * posts the requests to the server, with all the cookies and parameters that were added before (if any), and with parameters that are passed in the argument
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameters
+ */
+ public InputStream post(Object[] parameters) throws IOException {
+ setParameters(parameters);
+ return post();
+ }
+
+ /**
+ * posts the requests to the server, with all the cookies and parameters that were added before (if any), and with cookies and parameters that are passed in the arguments
+ * @param cookies request cookies
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameters
+ * @see setCookies
+ */
+ public InputStream post(Map cookies, Map parameters) throws IOException {
+ setCookies(cookies);
+ setParameters(parameters);
+ return post();
+ }
+
+ /**
+ * posts the requests to the server, with all the cookies and parameters that were added before (if any), and with cookies and parameters that are passed in the arguments
+ * @param cookies request cookies
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameters
+ * @see setCookies
+ */
+ public InputStream post(String[] cookies, Object[] parameters) throws IOException {
+ setCookies(cookies);
+ setParameters(parameters);
+ return post();
+ }
+
+ /**
+ * post the POST request to the server, with the specified parameter
+ * @param name parameter name
+ * @param value parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public InputStream post(String name, Object value) throws IOException {
+ setParameter(name, value);
+ return post();
+ }
+
+ /**
+ * post the POST request to the server, with the specified parameters
+ * @param name1 first parameter name
+ * @param value1 first parameter value
+ * @param name2 second parameter name
+ * @param value2 second parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public InputStream post(String name1, Object value1, String name2, Object value2) throws IOException {
+ setParameter(name1, value1);
+ return post(name2, value2);
+ }
+
+ /**
+ * post the POST request to the server, with the specified parameters
+ * @param name1 first parameter name
+ * @param value1 first parameter value
+ * @param name2 second parameter name
+ * @param value2 second parameter value
+ * @param name3 third parameter name
+ * @param value3 third parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public InputStream post(String name1, Object value1, String name2, Object value2, String name3, Object value3) throws IOException {
+ setParameter(name1, value1);
+ return post(name2, value2, name3, value3);
+ }
+
+ /**
+ * post the POST request to the server, with the specified parameters
+ * @param name1 first parameter name
+ * @param value1 first parameter value
+ * @param name2 second parameter name
+ * @param value2 second parameter value
+ * @param name3 third parameter name
+ * @param value3 third parameter value
+ * @param name4 fourth parameter name
+ * @param value4 fourth parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public InputStream post(String name1, Object value1, String name2, Object value2, String name3, Object value3, String name4, Object value4) throws IOException {
+ setParameter(name1, value1);
+ return post(name2, value2, name3, value3, name4, value4);
+ }
+
+ /**
+ * posts a new request to specified URL, with parameters that are passed in the argument
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameters
+ */
+ public static InputStream post(URL url, Map parameters) throws IOException {
+ return new ClientHttpRequest(url).post(parameters);
+ }
+
+ /**
+ * posts a new request to specified URL, with parameters that are passed in the argument
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameters
+ */
+ public static InputStream post(URL url, Object[] parameters) throws IOException {
+ return new ClientHttpRequest(url).post(parameters);
+ }
+
+ /**
+ * posts a new request to specified URL, with cookies and parameters that are passed in the argument
+ * @param cookies request cookies
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setCookies
+ * @see setParameters
+ */
+ public static InputStream post(URL url, Map cookies, Map parameters) throws IOException {
+ return new ClientHttpRequest(url).post(cookies, parameters);
+ }
+
+ /**
+ * posts a new request to specified URL, with cookies and parameters that are passed in the argument
+ * @param cookies request cookies
+ * @param parameters request parameters
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setCookies
+ * @see setParameters
+ */
+ public static InputStream post(URL url, String[] cookies, Object[] parameters) throws IOException {
+ return new ClientHttpRequest(url).post(cookies, parameters);
+ }
+
+ /**
+ * post the POST request specified URL, with the specified parameter
+ * @param name parameter name
+ * @param value parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public static InputStream post(URL url, String name1, Object value1) throws IOException {
+ return new ClientHttpRequest(url).post(name1, value1);
+ }
+
+ /**
+ * post the POST request to specified URL, with the specified parameters
+ * @param name1 first parameter name
+ * @param value1 first parameter value
+ * @param name2 second parameter name
+ * @param value2 second parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public static InputStream post(URL url, String name1, Object value1, String name2, Object value2) throws IOException {
+ return new ClientHttpRequest(url).post(name1, value1, name2, value2);
+ }
+
+ /**
+ * post the POST request to specified URL, with the specified parameters
+ * @param name1 first parameter name
+ * @param value1 first parameter value
+ * @param name2 second parameter name
+ * @param value2 second parameter value
+ * @param name3 third parameter name
+ * @param value3 third parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public static InputStream post(URL url, String name1, Object value1, String name2, Object value2, String name3, Object value3) throws IOException {
+ return new ClientHttpRequest(url).post(name1, value1, name2, value2, name3, value3);
+ }
+
+ /**
+ * post the POST request to specified URL, with the specified parameters
+ * @param name1 first parameter name
+ * @param value1 first parameter value
+ * @param name2 second parameter name
+ * @param value2 second parameter value
+ * @param name3 third parameter name
+ * @param value3 third parameter value
+ * @param name4 fourth parameter name
+ * @param value4 fourth parameter value
+ * @return input stream with the server response
+ * @throws IOException
+ * @see setParameter
+ */
+ public static InputStream post(URL url, String name1, Object value1, String name2, Object value2, String name3, Object value3, String name4, Object value4) throws IOException {
+ return new ClientHttpRequest(url).post(name1, value1, name2, value2, name3, value3, name4, value4);
+ }
+}
~yarrgweb / jarrg-owen.git / blobdiff