Android allow multiple file upload (Max 150 MB) to PHP Server

Question

I have to allow a user to upload multiple files(can be image/video/audio)in a single request from my android application to the PHP server. I am using REST web service.

For this functionality, I am using the following code:

/* To upload the multiple documents */
public void uploadFile() {
    String charset = "UTF-8";
    File[] uploadFileArray = new File[mediaList.size()];

    for (int i = 0; i < mediaList.size(); i++) {
        uploadFileArray[i] = new File(mediaList.get(i).getMediaPath());
    }

    try {
        MultipartUtility multipart = new MultipartUtility(upLoadServerUri, charset);

        for (int i = 0; i < mediaList.size(); i++) {
            if (isImage)) {
                multipart.addFilePart("image_doc[]", uploadFileArray[i]);
            } 
            else if (isVideo) {
                multipart.addFilePart("video_doc[]", uploadFileArray[i]);
            } 
            else if (isAudio) {
                multipart.addFilePart("audio_doc[]", uploadFileArray[i]);
            }
        }

        List<String> responseUploadDocument = multipart.finish();
        System.out.println("SERVER REPLIED:");

        for (String line : responseUploadDocument) {
            System.out.println(line);
            responseUploadDocumentString = line;
        }

        if (responseUploadDocumentString != null) {
            JSONObject jsonObj = new JSONObject(responseUploadDocumentString);
            statusUploadDoc = jsonObj.getString("status");
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
}

And my MultipartUtility Class is as follows:

public class MultipartUtility {
    private final String boundary;
    private static final String LINE_FEED = "\r\n";
    private HttpURLConnection httpConn;
    private String charset;
    private OutputStream outputStream;
    private PrintWriter writer;

    public MultipartUtility(String requestURL, String charset)
            throws IOException {
        this.charset = charset;

        boundary = "===" + System.currentTimeMillis() + "===";

        URL url = new URL(requestURL);
        httpConn = (HttpURLConnection) url.openConnection();

        ***httpConn.setChunkedStreamingMode(0);***
        httpConn.setUseCaches(false);
        httpConn.setDoOutput(true); // indicates POST method
        httpConn.setDoInput(true);

        httpConn.setRequestProperty("Content-Type",
                "multipart/form-data; boundary=" + boundary);
        httpConn.setRequestProperty("User-Agent", "CodeJava Agent");
        httpConn.setRequestProperty("Test", "Bonjour");

        outputStream = httpConn.getOutputStream();
        writer = new PrintWriter(new OutputStreamWriter(outputStream, charset),
                true);
    }

    public void addFormField(String name, String value) {
        writer.append("--" + boundary).append(LINE_FEED);
        writer.append("Content-Disposition: form-data; name=\"" + name + "\"")
                .append(LINE_FEED);
        writer.append("Content-Type: text/plain; charset=" + charset).append(
                LINE_FEED);
        writer.append(LINE_FEED);
        writer.append(value).append(LINE_FEED);
        writer.flush();
    }

    public void addFilePart(String fieldName, File uploadFile)
            throws IOException {
        String fileName = uploadFile.getName();
        writer.append("--" + boundary).append(LINE_FEED);
        writer.append(
                "Content-Disposition: form-data; name=\"" + fieldName
                        + "\"; filename=\"" + fileName + "\"")
                .append(LINE_FEED);
        writer.append(
                "Content-Type: "
                        + URLConnection.guessContentTypeFromName(fileName))
                .append(LINE_FEED);
        writer.append("Content-Transfer-Encoding: binary").append(LINE_FEED);
        writer.append(LINE_FEED);
        writer.flush();

        FileInputStream inputStream = new FileInputStream(uploadFile);
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, bytesRead);
        }
        outputStream.flush();
        inputStream.close();

        writer.append(LINE_FEED);
        writer.flush();
    }

    public void addHeaderField(String name, String value) {
        writer.append(name + ": " + value).append(LINE_FEED);
        writer.flush();
    }

    public List<String> finish() throws IOException {
        List<String> response = new ArrayList<String>();

        writer.append(LINE_FEED).flush();
        writer.append("--" + boundary + "--").append(LINE_FEED);
        writer.close();

        // checks server's status code first
        int status = httpConn.getResponseCode();
        if (status == HttpURLConnection.HTTP_OK) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    httpConn.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                response.add(line);
            }
            reader.close();
            httpConn.disconnect();
        } else {
            throw new IOException("Server returned non-OK status: " + status);
        }

        return response;
    }
}

But now the problem is:

On Local Server:

• Allow to upload till 16MB [if setChunkedStremmingMode(0) is not set]
• Allow to upload till 150MB [if setChunkedStremmingMode(0) is set]

On Live Server:

• Allow to upload till 16MB [if setChunkedStremmingMode(0) is not set]
• Disallow to upload a single KB file [if setChunkedStremmingMode(0) is set]

My both local and live servers have the same configurations. I don't understand why setChunkedStremmingMode(0) doesn't work for the live server.

Answer 1

I have a project which can upload image/file size of up to 48-50 MB. [I'm using Retrofit for Network communication.] Here is the link to the Sample Project: https://github.com/DearDhruv/Retrofit-with-EventBus

Here is code:

private void startUploading(final File file) {

    if (file == null || !isPictureValid(file.getAbsolutePath())) {
        showMsg("File is not valid, try again.");
    } else if (file.exists()) {
        showProgressDialog();
        String mimeType = "image/jpeg"
                // "application/octet-stream"
                // "multipart/form-data"
                // "image/*"
                // "multipart/mixed"
                ;

        TypedFile typedFile = new TypedFile(mimeType, file);
        mApiClient.uploadFile(UPLOAD_FILE_REQUEST_TAG, typedFile);

    } else {
        showMsg("File is corrupted.");
    }
}

Here is server-side code:

class ImageUploadStatus {
    public $result_code = 0;
    public $message = "Image upload failed.";}
    class ImageResults {
    public $name = "";
    public $url = "";
    public $size = "";
}
$status = new ImageUploadStatus ();
$results = new ImageResults ();

if ($_FILES ["file"] ["error"] > 0) {
    header ( "HTTP/1.1 400 Bad Request" );
    // echo "Error: " . $_FILES ["file"] ["error"] . "<br /> \n";
    $status->message = "Error: " . $_FILES ["file"] ["error"];
} else {
    if ($_FILES ["file"] ["error"] > 0) {
        // echo "Error: " . $_FILES ["file"] ["error"] . "<br /> \n";
        $status->message = "Error: " . $_FILES ["file"] ["error"];
    } else {
        // echo "Upload: " . $_FILES ["file"] ["name"] . "<br /> \n";
        // echo "Type: " . $_FILES ["file"] ["type"] . "<br /> \n";
        // echo "Size: " . ($_FILES ["file"] ["size"] / 1024) . " Kb<br /> \n";
        // echo "Stored in: " . $_FILES ["file"] ["tmp_name"] . "<br /> \n";
    }

    $target_path = "../api/uploads/";
    $target_path = $target_path . basename ( $_FILES ['file'] ['name'] );

    //if (is_uploaded_file ( $_FILES ['uploadedfile'] ['tmp_name'] )) {
        // echo "There was an error uploading the file, please try again!";
        //$status->message = "There was an error uploading the file, please try again!";
    //}

    if (move_uploaded_file ( $_FILES ['file'] ['tmp_name'], $target_path )) {
        // echo "The file " . basename ( $_FILES ['file'] ['name'] ) . " has been uploaded";

        $status->message = "Image upload successful";
        $status->result_code = 1;

        $results->name = $_FILES ["file"] ["name"] . "";
        $results->url = $target_path . "";
        $results->size = ($_FILES ["file"] ["size"] / 1); // 1024 to convert in KB
    } else {
        // echo "There was an error Moving the file, please try again!";
        //$status->message = "There was an error Moving the file, please try again!";

         switch($_FILES['file']['error']){
            case 0: //no error; possible file attack!
              $status->message =  "There was a problem with your upload.";
              break;
            case 1: //uploaded file exceeds the upload_max_filesize directive in php.ini
              $status->message =  "The file you are trying to upload is too big.";
              break;
            case 2: //uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the html form
              $status->message =  "The file you are trying to upload is too big.";
              break;
            case 3: //uploaded file was only partially uploaded
                $status->message =  "The file you are trying upload was only partially uploaded.";
              break;
            case 4: //no file was uploaded
              $status->message =  "You must select an image for upload.";
              break;
            default: //a default error, just in case!  :)
              $status->message =  "There was a problem with your upload.";
              break;
          }

        }

    $response = array (
            'status' => $status,
            'results' => $results 
    );

    // echo (json_encode ( $status ));
    // echo (json_encode ( $results ));
    echo (json_encode ( $response ));
}

I guess this might be helpful.

You might also need to give the max size of upload file in PHP configuration.