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Uploading file to server with Java and PHP

I'm making a Java application, and need the user to be able to upload a file to a server through PHP. The problem is that when the user uploads the file, the PHP script doesn't seem to "catch" the file.
This is the code I have so far.
PHP:
<?php
$target_path = "uploads/";
$target_path = $target_path . basename($_FILES['uploadedfile']['name']);
if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "1";
exit();
}
echo "0";
?>
Java:
String filename = "C:\Users\XXX\Pictures\Capture.PNG";
public void uploadFile() {
text = "";
String CrLf = "\r\n";
String filename = filepath.split("/")[filepath.split("/").length-1];
URLConnection conn = null;
OutputStream os = null;
InputStream is = null;
try {
URL con = new URL(connection);
conn = con.openConnection();
conn.setDoOutput(true);
InputStream imgIS = new FileInputStream(filepath);
byte[] imgData = new byte[imgIS.available()];
imgIS.read(imgData);
String message1 = "";
message1 += "-----------------------------4664151417711" + CrLf;
message1 += "Content-Disposition: form-data; name=\"uploadedfile\"; filename=\"Image0001.png\""
+ CrLf;
message1 += "Content-Type: image/png" + CrLf;
message1 += CrLf;
// the image is sent between the messages in the multipart message.
String message2 = "";
message2 += CrLf + "-----------------------------4664151417711--"
+ CrLf;
conn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=---------------------------4664151417711");
// might not need to specify the content-length when sending chunked
// data.
conn.setRequestProperty("Content-Length", String.valueOf((message1
.length() + message2.length() + imgData.length)));
System.out.println("open os");
os = conn.getOutputStream();
System.out.println(message1);
os.write(message1.getBytes());
// SEND THE IMAGE
int index = 0;
int size = 1024;
do {
System.out.println("write:" + index);
if ((index + size) > imgData.length) {
size = imgData.length - index;
}
os.write(imgData, index, size);
index += size;
} while (index < imgData.length);
System.out.println("written:" + index);
System.out.println(message2);
os.write(message2.getBytes());
os.flush();
System.out.println("open is");
is = conn.getInputStream();
char buff = 512;
int len;
byte[] data = new byte[buff];
do {
System.out.println("READ");
len = is.read(data);
if (len > 0) {
System.out.println(new String(data, 0, len));
}
} while (len > 0);
System.out.println("DONE");
} catch (Exception e) {
e.printStackTrace();
} finally {
System.out.println("Close connection");
try {
os.close();
} catch (Exception e) {
}
try {
is.close();
} catch (Exception e) {
}
try {
} catch (Exception e) {
}
}
}
When getting the output from the PHP script, it always returns a "0".
I've tried a lot of different things, but nothing seems to work.

Android - File Corrupts while saving

I am saving a file to disk after downloading it from server, but I believe it gets corrupted while saving on the disc. If the same file is downloaded using chrome on mac or using any other method, the file downloads and reads normally. The corruption seems to be in the saving process of the file. I am adding the code to help find out the problem. The file is a css file.
Corruption:
Some whitespace sort of characters appear when reading the file. A surprising thing that I tried and noticed is that if I reduce the BUFFER_SIZE to 32 from 4096, the file does not get corrupt, I couldn't figure out why. Also, reducing BUFFER_SIZE reduces whitespaces / corrupted characters.
Appreciate any pointers in the right direction. Thanks
private static final int BUFFER_SIZE = 4096;
// saves file to disk and returns the contents of the file.
public static String downloadFile(Context context, String filePath, String destParent) {
String content = null;
StringBuilder sb = new StringBuilder();
HttpURLConnection connection = null;
InputStream is = null;
FileOutputStream os = null;
String sUrl = Urls.makeWebAssetUrl(filePath); /// consider this my file URL
String destFile = getContextBaseDir(context) + (destParent != null ? File.separator + destParent : "") + File.separator + filePath;
try {
URL url = new URL(sUrl);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
File outFile = new File(destFile);
if (!outFile.getParentFile().exists()) {
if (!outFile.getParentFile().mkdirs()) {
throw new RuntimeException("Unable to create parent directories for " + filePath);
}
}
is = connection.getInputStream();
os = new FileOutputStream(outFile);
int bytesRead = 0;
byte[] buffer = new byte[BUFFER_SIZE];
while ((bytesRead = is.read(buffer)) != -1) {
sb.append(new String(buffer, 0, bytesRead, DEFAULT_ENCODING));
os.write(buffer);
}
content = sb.toString();
}
else {
LogUtils.LOGW(TAG, responseCode + " while connecting to " + sUrl + ": " + connection.getResponseMessage());
}
} catch(Exception e) {
LogUtils.LOGE(TAG, "Error while downloading " + sUrl, e);
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
LogUtils.LOGE(TAG, "Error closing inputStream while downloading " + sUrl, e);
}
}
if (os != null) {
try {
os.flush();
} catch (IOException e) {
LogUtils.LOGE(TAG, "Error flushing outputStream while downloading " + sUrl, e);
}
try {
os.close();
} catch (IOException e) {
LogUtils.LOGE(TAG, "Error closing outputStream while downloading " + sUrl, e);
}
}
}
return content;
}

os.write(buffer);
The problem is here. It should be:
os.write(buffer, 0, bytesRead);
I don't know why you are also accumulating the content in a StringBuffer and returning it as a String. That won't scale, and in any cast it's redundant. Remove.

Send HTTP Response from we server to client

I have a problem in sending the body of http response,and I think the problem in this line out.write(buffer, 0, bytes); please help me .
DataInputStream din = new DataInputStream(ClientConn.getInputStream());
OutputStream ot = ClientConn.getOutputStream();
BufferedOutputStream out = new BufferedOutputStream(ot);
String request = din.readLine().trim();
System.out.println(request);
StringTokenizer st = new StringTokenizer(request);
String header = st.nextToken();
System.out.println(header);
if (header.equals("GET")) {
String fileName = st.nextToken();
String file = fileName.substring(1, fileName.length());
System.out.println(file);
FileInputStream fin = null;
boolean fileExist = true;
try {
fin = new FileInputStream(file);
}
catch (Exception ex) {
fileExist = false;
}
String ServerLine = "Simple HTTP Server";
String StatusLine = null;
String ContentTypeLine = null;
String ContentLengthLine = null;
String ContentBody = null;
if (fileExist) {
StatusLine = "HTTP/1.0 200 OK";
ContentTypeLine = "Content-type: text/html";
ContentLengthLine = "Content-Length: " + (new Integer(fin.available()).toString());
} else {
StatusLine = "HTTP/1.0 200 OK";
ContentTypeLine = "Content-type: text/html";
ContentBody = "<HTML>" +
"<HEAD><TITLE>404 Not Found</TITLE></HEAD>" +
"<BODY>404 Not Found" +
"</BODY></HTML>";
ContentLengthLine = (new Integer(ContentBody.length()).toString());
}
out.write(StatusLine.getBytes());
out.write(ServerLine.getBytes());
out.write(ContentTypeLine.getBytes());
out.write(ContentLengthLine.getBytes());
// output.writeUTF(file);
if (fileExist) {
byte[] buffer = new byte[1024];
int bytes = 0;
while ((bytes = fin.read(buffer)) != -1) {
out.write(buffer, 0, bytes);
for (int iCount = 0; iCount < bytes; iCount++) {
int temp = buffer[iCount];
System.out.print((char) temp);
}
}
}
out.flush();
fin.close();
} else {
//out.write(ContentBody.getBytes());
}
out.close();
ClientConn.close();

Your header is not properly written into the OutputStream, you forget to write the EOL characters which are "\r\n" at the end of each line. And before starting to write the content of your body you need to write the EOL characters too.
In other words, you need to do something like this:
String eol = "\r\n";
Charset charset = Charset.forName("ASCII");
byte[] eolBytes = eol.getBytes(charset);
out.write(StatusLine.getBytes(charset));
out.write(eolBytes);
out.write( ServerLine.getBytes(charset));
out.write(eolBytes);
out.write(ContentTypeLine.getBytes(charset));
out.write(eolBytes);
out.write( ContentLengthLine.getBytes(charset));
out.write(eolBytes);
// End of the header
out.write(eolBytes);
// Here the body begin
Indeed your header must be encoded into ASCII.
Response update:
Other remarks regarding your code:
Use the method File#exists() to check if a file exist.
Use Files.getAttribute(Paths.get("/path/to/my/file"), "size") to get the size of your file
In case the file doesn't exist you just don't write the body in your current code.

Hindi decoding error while sending message. Output is something like व� हव�� व�हव ��व� हवहব व�ह

static String username = "######";
static String password = "#####";
static String senderid = "###";
static String message = "वउह";
static String mobileNo = "08447475458";
static String mobileNos = "08447475458,08447475458";
static String scheduledTime = "20110701 02:27:00";
static HttpURLConnection connection = null;
public static void main(String[] args) {
try {
URL url = new URL("http://msdgweb.mgov.gov.in/esms/sendsmsrequest");
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setFollowRedirects(true);
connection = sendSingleSMS(username, password, senderid,
mobileNo, message);
System.out.println("Resp Code:" + connection.getResponseCode());
System.out.println("Resp Message:"
+ connection.getResponseMessage());
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// Method for sending single SMS.
public static HttpURLConnection sendSingleSMS(String username,
String password, String senderId,
String mobileNo, String message) {
try {
byte[] bytes = message.getBytes("UTF-8");
String smsservicetype = "singlemsg"; // For single message.
String query = "username=" + URLEncoder.encode(username)
+ "&password=" + URLEncoder.encode(password)
+ "&smsservicetype=" + URLEncoder.encode(smsservicetype)
+ "&content=" + URLDecoder.decode(message,"utf-8") + "&mobileno="
+ URLEncoder.encode(mobileNo) + "&senderid="
+ URLEncoder.encode(senderId);
connection.setRequestProperty("Content-length", String
.valueOf(query.length()));
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset = utf-8");
connection.setRequestProperty("User-Agent",
"Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)");
DataOutputStream output = new DataOutputStream(connection
.getOutputStream());
int queryLength = query.length();
output.writeBytes(query);
System.out.println(query);
DataInputStream input = new DataInputStream(connection
.getInputStream());
for (int c = input.read(); c != -1; c = input.read())
System.out.print((char) c);
input.close();
} catch (Exception e) {
System.out.println("Something bad just happened.");
System.out.println(e);
e.printStackTrace();
}
return connection;
I am using this code to send sms from gateway but this code is fine if the text is english but if I give some hindi text then its not able to read it and user gets some characters.
the output is something like
व� हव�� व�हव ��व� हवहব व�ह

The DataInputStream is reading bytes, but then you have to properly convert those bytes to characters using the correct encoding. For that, you could construct a String using the constructor as follows:
String hindiCharSequence = new String(bytes, "UTF-8");

The answer from #ChthonicProject is the correct answer to accept, here a bit code. It uses a ByteArrayOutputStream to collect the bytes. A DataInputStream is more useful for reading binary ints and such. Better use just a buffering. And/or read a byte[] buffer of say 160 bytes.
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try (BufferedInputStream input = new BufferedInputStream(connection
.getInputStream())) {
for (int c = input.read(); c != -1; c = input.read()) {
baos.write(c);
}
} // Closes input.
String msg = new String(baos.toByteArray(), StandardCharsets.UTF_8);
System.out.print(msg);
What you did, was considering every byte as a char. But with UTF-8 several bytes may make up a char, which is 16 bit.

May be the problem is with the SMS encoding. By default it uses GSM 7-bit alphabet.
Check if you can specify which encoding will be used in SMS encoding.

Applied this belore query string and its done
System.out.println(message);
String finalmessage = "";
String sss = "";
char ch = 0;
for(int i = 0 ; i < message.length();i++){
ch = message.charAt(i);
int j = (int) ch;
// System.out.println("iiii::"+j);
sss = "&#"+j+";";
finalmessage = finalmessage+sss;
}
System.out.println("ddd"+finalmessage);
message=finalmessage;
System.out.println("unicoded message=="+message);

HTTPS login? Java

I am trying to write a segment of code that will attempt to login to twitter to check if user name is correct and then return if it is true or false. It is not working due to the fact that if I put in the correct user name and pass that I still get the sign in page.
public class httpConnect {
//Variables
public Boolean correctCredentials(String site, String user, String pass) {
String data = connect(site, user, pass);
char[] charArray = data.toCharArray();
try {
File log = new File("C:\\Users\\________\\Desktop" + "\\" + "log.txt");
if (log.exists()) {
Scanner scan = new Scanner(log);
while (scan.hasNextLine()) {
String temp = scan.nextLine();
temp = charArray.toString() + (char) 10 + (char) 10 + (char) 10 + temp;
charArray = temp.toCharArray();
}
}
BufferedWriter out = new BufferedWriter(new FileWriter("C:\\Users\\________\\Desktop" + "\\" + "log.txt", true)); //bufferedWriter for speed
out.append((char) 10);
for (int x = 0; x < charArray.length; x++) {
out.append(charArray[x]);
}
out.flush();
out.close();
} catch (Exception e) {
JOptionPane.showMessageDialog(null, e + "\nSorry, could not write File"); //gives error if path does not exist
}
return false;
}
public String connect(String site, String user, String pass) {
StringBuilder response = new StringBuilder();
;
try {
String encodedUser = URLEncoder.encode(user, "UTF-8");
String encodedPass = URLEncoder.encode(pass, "UTF-8");
/*
* commit - LOGIN_ACTION_NAME
* session[username_or_email] - LOGIN_USER_NAME_PARAMETER_NAME
* session[password] - LOGIN_PASSWORD_PARAMETER_NAME
*/
String content = "login=" + "commit" + " amp;amp;"
+ "session[username_or_email]" + "=" + encodedUser + "amp;amp;"
+ "session[password]" + "=" + encodedPass;
HttpsURLConnection urlConnect = (HttpsURLConnection) (new URL(site).openConnection());
urlConnect.setDoInput(true);
urlConnect.setDoOutput(true);
urlConnect.setRequestProperty("Content-Type", "text/html; charset=utf-8");
urlConnect.setRequestMethod("POST");
DataOutputStream dataOutputStream = new DataOutputStream(urlConnect.getOutputStream());
dataOutputStream.writeBytes(content);
dataOutputStream.flush();
dataOutputStream.close();
BufferedReader buf = new BufferedReader(new InputStreamReader(urlConnect.getInputStream()));
String responseLine = "";
while ((responseLine = buf.readLine()) != null) {
response.append(responseLine);
}
System.out.println(response);
} catch (Exception e) {
e.printStackTrace();
}
return response.toString();
}
}
So basically what I am going to do is attempt login and then scan page to see if title says "Twitter \ Home" and if it does then I know I logged in correctly. I have not gotten that far, but when I browse it myself it does not work.
Btw I don't want to use Twitter4j because it refuses to return a Boolean.
It also may be that I do not have the right page to attempt to log into. How would I find it? What would it be for twitter?

Have you had a look at using the official Twitter API (http://dev.twitter.com/doc) to do this?
Looking at your code suggests that you're mimicking the browser's authentication requests, but this probably misses out some information such as cookies, request tokens and whatever else they might use in their login page.