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<?php

define('S3_PATH', '/var/www/data/s3');
define('S3_DN', 's3.exammple.com');

function _s3_check($s3_filename)
{
    $cmd = sprintf("ssh %s 'ls -al %s 2>/dev/null && echo 1;';"
        ,S3_DN, S3_PATH . '/' . $s3_filename);
    $resp = shell_exec($cmd);
    return (boolean)$resp;
}

function _s3_put($src_file, $s3_filename)
{
    $cmd = sprintf("ssh %s 'mkdir -p %s';"
        ,S3_DN, S3_PATH . '/' . dirname($s3_filename));

    $resp = shell_exec($cmd);

    $cmd  = sprintf("rsync -azq %s %s && echo 1;",
        $src_file, S3_DN . ':' . S3_PATH . '/' . $s3_filename);

    $resp = shell_exec($cmd);

    return (boolean)$resp;
}

function _s3_delete($s3_filename)
{
    $cmd = sprintf("ssh %s 'rm %s 2>/dev/null && echo 1;';"
        ,S3_DN, S3_PATH . '/' . $s3_filename);
    $resp = shell_exec($cmd);

    return (boolean)$resp;

}