How do I receive files from my app on my website?

Question

I would like the users of my Android app to be able to send zip files to my server using http. The use case I am imagining looks like this:

• The user sends a zip file and a String containing a password using a HttpClient and HttpPost (as described here) to my server.

• By logging in to www.example.com/my_app with existing password, users can download the files that the people have sent to my server under the given password.

I don't understand how to do the second step. What code do I need to write on my website to receive files that the Android users have been sending? I have a shared server under my hosting plan and a simple website.

Answer 1

You first need to modify the upload code(Since file upload is treated as multipart data). Here is the modified upload code--

String url = "http://localhost/upload.php";
        File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath(),
                "file.txt");
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(url);
            Part[] parts = new Part[1];
            parts[0] =  new FilePart("fileToUpload", file);
            MultipartEntity reqEntity = new MultipartEntity(parts);
            reqEntity.setContentType("binary/octet-stream");
            reqEntity.setChunked(true); // Send in multiple parts if needed
            httppost.setEntity(reqEntity);
            HttpResponse response = httpclient.execute(httppost);
        } catch (Exception e) {
            e.printStackTrace();
        }

Here I have used the fileToUpload as the parameter key for uploaded file. On server code you can use the same key for your $_FILES["fileToUpload"]. Here is the simplest PHP code to accept the uploaded data from above android code--

<?php
$target_dir = "/Users/chauhan/Desktop/uploads/";
$target_file = $target_dir . basename("abc.txt");
move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file);
?>