I am new to AWS and now I have an issue. I am developing a mobile app that uses PHP files as web services to query a MySQL database. PHP files and MySQL are hosted on a AWS EC2 instance. I have no problem accessing the PHP files from my mobile app. The issue I have now is that I need to upload a file from the app to the server.
Here you have the PHP file that is used to receive and save the file to the server:
<?php
$image = $_POST['image'];
$name = $_POST['name'];
$realImage = base64_decode($image);
file_put_contents($name,$realImage);
echo "OK";
?>
In the app I am receiving the response "OK" , but the file is not saved to the server folder. I guess this is a matter of permissions.
I can access the server through FTP. I gave the permissions to the ubuntu instance user as follows:
sudo chown -R ubuntu:ubuntu /var/www/html
sudo chmod -R 755 /var/www/html
But I don´t know what should I do to let me upload files from the app to the server without issues.
First, and very important, the question doesn't have anything to do with AWS. You have Ubuntu server that runs web server and PHP and you can't upload a file in your application.
Second, you are tinkering with permissions in /var/www/html. That is not where the file is uploaded. The location is controlled by upload_tmp_dir in your php.ini. By default the location is system temp directory. Uploading user files into web root is a very bad security practice. What prevents a mailicious user to upload some script, and then access it from the browser and execute it?!
Finally, if your upload_tmp_dir is pointing to some non-default location, it needs to be writeable by web server. Is your web server running as ubuntu? It's usually apache or nginx, depending what web server you are running
Take a look at this example that combines client and server-side code