Need help identifying functions

I installed the author-image plugin (code is below):

<?php

class sem_author_image_admin
{
#
# init()
#

function init()
{
add_action(‘edit_user_profile’, array(‘sem_author_image_admin’, ‘display_image’));
add_action(‘profile_update’, array(‘sem_author_image_admin’, ‘save_image’));
} # init()

#
# display_image()
#

function display_image()
{
$author_id = $GLOBALS[‘profileuser’]->user_login;

$site_url = trailingslashit(get_option(‘siteurl’));

if ( $image = glob(ABSPATH . ‘wp-content/authors/’ . $author_id . ‘{,-*}.{jpg,jpeg,png}’, GLOB_BRACE) )
{
$image = end($image);
}

echo ‘<fieldset>’
. ‘<legend>’
. __(‘Author Image’)
. ‘</legend>’;

if ( $image )
{
echo ‘<p>’
. ‘<img src=”‘
. str_replace(ABSPATH, $site_url, $image)
. ‘”‘
. ‘ />’ . “\n”
. ‘</p>’ . “\n”;

echo ‘<p>’;

if ( is_writable($image) )
{
echo ‘<label for=”delete_author_image”>’
. ‘<input type=”checkbox”‘
. ‘ id=”delete_author_image” name=”delete_author_image”‘
. ‘ style=”text-align: left; width: auto;”‘
. ‘ />’
. ‘ ‘
. __(‘Delete author image’)
. ‘</label>’;
}
else
{
echo __(‘This author image is not writable by the server.’);
}

echo ‘</p>’ . “\n”;
}

@mkdir(ABSPATH . ‘wp-content/authors’);
@chmod(ABSPATH . ‘wp-content/authors’, 0777);

if ( !$image
|| is_writable($image)
)
{
echo ‘<p>’
. ‘<label for=”author_image”>’
. __(‘New Image (jpg or png)’) . ‘:’
. ‘</label>’
. ‘
‘ . “\n”;

if ( is_writable(ABSPATH . ‘wp-content/authors’) )
{
echo ‘<input type=”file” style=”width: 480px;”‘
. ‘ id=”author_image” name=”author_image”‘
. ‘ />’ . “\n”;
}
elseif ( !is_writable(ABSPATH . ‘wp-content’) )
{
echo __(‘The wp-content folder is not writeable by the server’) . “\n”;
}
else
{
echo __(‘The wp-content/authors folder is not writeable by the server’) . “\n”;
}

echo ‘</p>’ . “\n”;
}

echo ‘</fieldset>’;
} # display_image()

#
# save_image()
#

function save_image($user_ID)
{
if ( @ $_FILES[‘author_image’][‘name’] )
{
$user = get_userdata($user_ID);
$author_id = $user->user_login;

if ( $image = glob(ABSPATH . ‘wp-content/authors/’ . $author_id . ‘{,-*}.{jpg,jpeg,png}’, GLOB_BRACE) )
{
foreach ( $image as $img )
{
@unlink($img);
}
}

$tmp_name =& $_FILES[‘author_image’][‘tmp_name’];

preg_match(“/\.([^\.]+)$/”, $_FILES[‘author_image’][‘name’], $ext);
$ext = end($ext);

if ( !in_array($ext, array(‘jpg’, ‘jpeg’, ‘png’)) )
{
echo ‘<div class=”error”>’
. “<p>”
. ““
. __(‘Invalid File Type.’)
. ““
. “</p>\n”
. “</div>\n”;
}
else
{
$entropy = get_option(‘sem_entropy’);

$entropy = intval($entropy) + 1;

update_option(‘sem_entropy’, $entropy);

$name = ABSPATH . ‘wp-content/authors/’ . $author_id . ‘-‘ . $entropy . ‘.’ . $ext;

// Set a maximum height and width
$width = 240;
$height = 240;

// Get new dimensions
list($width_orig, $height_orig) = getimagesize($tmp_name);

if ( $width_orig > $width || $height_orig > $height )
{
if ( $width_orig < $height_orig )
{
$width = intval(($height / $height_orig) * $width_orig);
}
else
{
$height = intval(($width / $width_orig) * $height_orig);
}

// Resample
$image_p = imagecreatetruecolor($width, $height);

if ( $ext == ‘png’ )
{
$image = imagecreatefrompng($tmp_name);
}
else
{
$image = imagecreatefromjpeg($tmp_name);
}

imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);

@imagejpeg($image_p, $name, 75);
}
else
{
@move_uploaded_file($tmp_name, $name);
}

@chmod($name, 0666);
}
}
elseif ( isset($_POST[‘delete_author_image’]) )
{
$user_ID = $_POST[‘checkuser_id’];
$user = get_userdata($user_ID);
$author_id = $user->user_login;

if ( $image = glob(ABSPATH . ‘wp-content/authors/’ . $author_id . ‘{,-*}.{jpg,jpeg,png}’, GLOB_BRACE) )
{
$image = end($image);
}

if ( $image )
{
@unlink($image);
}
}

return $user_ID;
} # save_image()
} # sem_author_image_admin

sem_author_image_admin::init();

if ( !function_exists(‘ob_multipart_author_form’) ) :
#
# ob_multipart_author_form_callback()
#

function ob_multipart_author_form_callback($buffer)
{
$buffer = str_replace(
‘<form name=”profile”‘,
‘<form enctype=”multipart/form-data” name=”profile”‘,
$buffer
);
return $buffer;
} # ob_multipart_author_form_callback()

#
# ob_multipart_author_form()
#

function ob_multipart_author_form()
{
ob_start(‘ob_multipart_author_form_callback’);
} # ob_multipart_author_form()

add_action(‘admin_head’, ‘ob_multipart_author_form’);
endif;
?>

—————–
Now my question is how do you make this available to any user role?

It’s definitely not checking the user level anywhere. I think the problem is with the init() function; it’s only injecting the code into the actions ‘edit_user_profile’ and ‘profile_update’ , which I’m guessing are actions only admins can perform?

What is the action called when a regular user edits their profile? I figure if I add that to the init() function it might work. Is that the right path to go down in getting to my goals?