Hide tab based on group

[caspert_ghost]

Below you will find the code for a photo album, the designer does not have a forum or email for answering questions and I need help on this.

In this code there is a section called "tabs" this section creates the tabs: Browse (index.php), My Albums (if user has an album), Hot, recent, views, upload...

 

If user has an album it will show "My Albums", if not it hides this button.

 

I would like to hide "upload" unless user is a member of a specific group.

 

Also there is no way to delete photos which to me is not a good idea, so if someone who knows how to code could assist with:

1: how to hide the "upload" tab

2: how to add a delete button so the user who uploaded may delete AND the admin has the ability to delete any.

thank you

 

Full information and download for the complete code can be found at:

http://www.phpbb.com/community/viewtopic.php?f=70&t=579254&st=0&sk=t&sd=a

 

This is only a partial code script, this is installed with phpbb boards.

<?php
/**
*
* @package Gallery
* @version $Id: gallery.php v0.1.0 12.09.2007 17:52:03 danieLs Exp $
* @copyright (c) danieLs - http://www.safereaction.ro
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/

class Gallery
{
var $config;

function load_config()
{
	global $db;

	$sql = 'SELECT *
			FROM ' . GALLERY_CONFIG_TABLE;

	$result = $db->sql_query($sql);
	if ($row = $db->sql_fetchrow($result))
	{
		do
		{
			$this->config[ $row['config_name'] ] = (int) $row['config_value'];
		} 
		while ($row = $db->sql_fetchrow($result));
	}
	$db->sql_freeresult($result);
}

function get_config($name)
{
	return $this->config[$name];
}

function generate_menu($page = GALLERY_PAGE_BROWSE)
{
	global $template, $phpEx, $user, $db;

	$template->assign_block_vars('tabs', array(
		'S_SELECTED'	=> ($page == GALLERY_PAGE_BROWSE ? true : false),
		'U_TITLE'		=> "index.{$phpEx}",
		'L_TITLE'		=> $user->lang['GALLERY_MENU_BROWSE']
		)
	);

	if ($user->data['is_registered'])
	{
		$sql = 'SELECT album_id  
				FROM ' . GALLERY_ALBUMS_TABLE . ' 
				WHERE album_user_id = ' . $user->data['user_id'];
		$result = $db->sql_query($sql);
		if ($row = $db->sql_fetchrow($result))
		{
			$template->assign_block_vars('tabs', array(
				'S_SELECTED'	=> ($page == GALLERY_PAGE_MYALBUM ? true : false),
				'U_TITLE'		=> append_sid("index.{$phpEx}", '?gallery=members&album_id=' . $row['album_id']),
				'L_TITLE'		=> $user->lang['GALLERY_MENU_MYALBUM']
				)
			);
		}
		$db->sql_freeresult($result);
	}

	$template->assign_block_vars('tabs', array(
		'S_SELECTED'	=> ($page == GALLERY_PAGE_HOT ? true : false),
		'U_TITLE'		=> append_sid("hot.{$phpEx}"),
		'L_TITLE'		=> $user->lang['GALLERY_MENU_HOT']
		)
	);
	$template->assign_block_vars('tabs', array(
		'S_SELECTED'	=> ($page == GALLERY_PAGE_RECENT ? true : false),
		'U_TITLE'		=> append_sid("recent.{$phpEx}"),
		'L_TITLE'		=> $user->lang['GALLERY_MENU_RECENT']
		)
	);
	$template->assign_block_vars('tabs', array(
		'S_SELECTED'	=> ($page == GALLERY_PAGE_VIEWS ? true : false),
		'U_TITLE'		=> append_sid("views.{$phpEx}"),
		'L_TITLE'		=> $user->lang['GALLERY_MENU_VIEWS']
		)
	);
	$template->assign_block_vars('tabs', array(
		'S_SELECTED'	=> ($page == GALLERY_PAGE_UPLOAD ? true : false),
		'U_TITLE'		=> append_sid("upload.{$phpEx}"),
		'L_TITLE'		=> $user->lang['GALLERY_MENU_UPLOAD']
		)
	);		
}

function get_albums()
{
	global $db, $user;

	$sql = 'SELECT album_id, album_name  
			FROM ' . GALLERY_ALBUMS_TABLE . '
			WHERE album_parent_id = 0
				AND album_user_id = 0';

	$result = $db->sql_query($sql);

	$options = '<option value="0">' . $user->lang['GALLERY_PERSONAL_ALBUM'] . '</option>
				<option value="-1" disabled="disabled">------------------------------</option>';

	$albums = array();
	if ($row = $db->sql_fetchrow($result))
	{
		do
		{
			$albums[]	= array(
							'album_id'		=> $row['album_id'],
							'album_name'	=> $row['album_name']
						);
		}
		while ($row = $db->sql_fetchrow($result));
	}
	$db->sql_freeresult($result);

	foreach ($albums as $item)
	{
		$options .= '<option value="' . $item['album_id'] . '">|--' . $item['album_name'] . '</option>';

		$sql = 'SELECT album_id, album_name  
				FROM ' . GALLERY_ALBUMS_TABLE . ' 
				WHERE album_parent_id = ' . $item['album_id'] . '
					AND album_user_id = 0';
		$result = $db->sql_query($sql);
		if ($row = $db->sql_fetchrow($result))
		{
			do
			{
				$options .= '<option value="' . $row['album_id'] . '">|   |--' . $row['album_name'] . '</option>';
			}
			while ($row = $db->sql_fetchrow($result));
		}
	}
	$db->sql_freeresult($result);

	return $options;
}	

function handle_upload($form_name = 'fileupload')
{
	global $phpbb_root_path, $phpEx, $user;

	$filedata = array(
		'error'	=> array()
	);

	$upload = new fileupload();

	$filedata['post_attach'] = ($upload->is_valid($form_name)) ? true : false;

	if (!$filedata['post_attach'])
	{
		$filedata['error'][] = $user->lang['NO_UPLOAD_FORM_FOUND'];
		return $filedata;
	}


	$extensions = array();

	if ( (int) $this->config['jpg_allowed'] == 1 )
	{
		$extensions[] = 'jpg';
		$extensions[] = 'jpeg';
	}

	if ( (int) $this->config['gif_allowed'] == 1 )
	{
		$extensions[] = 'gif';
	}

	if ( (int) $this->config['gif_allowed'] == 1 )
	{
		$extensions[] = 'png';
	}

	$upload->set_allowed_extensions($extensions);
	$file = $upload->form_upload($form_name);

	if ($file->init_error)
	{
		$filedata['post_attach'] = false;
		return $filedata;
	}

	if (!$file->is_image())
	{
		$file->remove();
		$filedata['error'][] = $user->lang['ATTACHED_IMAGE_NOT_IMAGE'];
		return $filedata;
	}

	if((int) $this->config['bigger_allowed'] == 0)
	{
		$file->upload->set_allowed_dimensions(0, 0, (int) $this->config['max_width'], (int) $this->config['max_height']);
	}

	$file->clean_filename('unique');
	$file->move_file('gallery/upload/pics', false, false);

	if (sizeof($file->error))
	{
		$file->remove();
		$filedata['error'][] = $file->error;
		$filedata['post_attach'] = false;
		return $filedata;
	}

	if((int) $this->config['bigger_allowed'] == 1)
	{
		if ($file->get('height') > (int) $this->config['max_width'] || $file->get('width') > (int) $this->config['max_height'])
		{
			$destination = $source = $file->get('destination_file');
			if (!$this->create_thumbnail($source, $destination, $file->get('mimetype')))
			{
				$file->remove();
				$filedata['error'][] = $user->lang['GALLERY_ERROR_RESIZEING_PIC'];
				$filedata['post_attach'] = false;
				return $filedata;
			}
		}
	}

	$filedata['filesize'] = $file->get('filesize');
	$filedata['physical_filename'] = $file->get('realname');
	$filedata['real_filename'] = $file->get('uploadname');
	$filedata['filetime'] = time();
	$filedata['mimetype'] = $file->get('mimetype');

	// Check free disk space
	if ($free_space = @disk_free_space($phpbb_root_path . $config['upload_path']))
	{
		if ($free_space <= $file->get('filesize'))
		{
			$filedata['error'][] = $user->lang['ATTACH_QUOTA_REACHED'];
			$filedata['post_attach'] = false;
			$file->remove();
			return $filedata;
		}
	}
	return $filedata;
}

function create_thumbnail($source, $destination, $mimetype, $size = 'large') 
{
	global $config;

	$min_filesize 	= (int) $config['img_min_thumb_filesize'];
	$img_filesize 	= (file_exists($source)) ? @filesize($source) : false;

	if (!$img_filesize || $img_filesize <= $min_filesize)
	{
		return false;
	}

	$dimension = @getimagesize($source);

	if ($dimension === false)
	{
		return false;
	}

	list($width, $height) = $dimension;

	if ($size == 'small')
	{
		$max_width	= 128;
		$max_height	= 128;
	}
	else if ($size == 'med')
	{
		$max_width	= 640;
		$max_height	= 480;
	}
	else
	{
		$max_width	= (int) $this->config['max_width'];
		$max_height	= (int) $this->config['max_height'];
	}

	if (empty($width) || empty($height))
	{
		return false;
	}

	if ($width > $height)
	{
		$new_width	= round($width * ($max_width / $width));
		$new_height	= round($height * ($max_width / $width));
	}
	else
	{
		$new_width	= round($width * ($max_width / $height));
		$new_height	= round($height * ($max_width / $height));
	}


	// Do not create a thumbnail if the resulting width/height is bigger than the original one
	if ($new_width > $width && $new_height > $height)
	{
		$new_width	= $width;
		$new_height	= $height;			
	}

	switch ($mimetype) 
	{
		case 'image/gif':
			$image = @imagecreatefromgif($source);
		break;

		case 'image/jpg':
		case 'image/jpeg':
			$image = @imagecreatefromjpeg($source);
		break;

		case 'image/png':
			$image = @imagecreatefrompng($source);
		break;
	}

	if (function_exists('imagecreatetruecolor'))
	{
		$new_image = imagecreatetruecolor($new_width, $new_height);

		if ($new_image === false)
		{
			return false;
		}

		imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
	}
	else
	{
		$new_image = imagecreate($new_width, $new_height);

		if ($new_image === false)
		{
			return false;
		}

		imagecopyresized($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
	}

	// If we are in safe mode create the destination file prior to using the gd functions to circumvent a PHP bug
	if (@ini_get('safe_mode') || @strtolower(ini_get('safe_mode')) == 'on')
	{
		@touch($destination);
	}

	switch ($mimetype) 
	{
		case 'image/gif':
			imagegif($new_image, $destination);
		break;

		case 'image/jpg':
		case 'image/jpeg':
			$image_quality = ($size == 'small' || $size = 'med') ? (int) $this->config['thumbnail_quality'] : 100;
			imagejpeg($new_image, $destination, $image_quality);
		break;

		case 'image/png':
			imagepng($new_image, $destination);
		break;
	}

	imagedestroy($new_image);


	if (!file_exists($destination))
	{
		return false;
	}

	@chmod($destination, 0666);

	return true;
}

function redirect($meta_url, $message, $delay)
{
	meta_refresh($delay, $meta_url);
	trigger_error($message);
}
}
?>

[MadTechie]

I would normally say "Move to third party scripts"..

But you are not allow to change this script

Copyright © 1989, 1991 Free Software Foundation, Inc.

59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Everyone is permitted to copy and distribute verbatim copies

of this license document, but changing it is not allowed.

[caspert_ghost]

the script is a third party script and all of it is released under the gnu license so changing altering the code is ok.

 

the above code is the only section that refers to the link buttons (as tabs) and I want to hide the one tab.

 

There is no (at the moment) any way to delete the photos once uploaded.

 

I want to add a button to delete for admin only for now and will work on user delete later.

[MadTechie]

the script is a third party script and all of it is released under the gnu license so changing altering the code is ok.

 

NO. it is not ok.. you should always read the license

 

@license http://opensource.org/licenses/gpl-license.php GNU Public License

 

Copyright © 1989, 1991 Free Software Foundation, Inc.

59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Everyone is permitted to copy and distribute verbatim copies

of this license document, but changing it is not allowed.

[caspert_ghost]

That my friend is the licensce/ you may distribute the "license" but may not make changes to the "license"

The code IS however OPENSOURCE which MAY be changed and altered.

[caspert_ghost]

read the next paragraph of that same page:

 

The licenses for most software are designed to take away your

freedom to share and change it. By contrast, the GNU General Public

License is intended to guarantee your freedom to share and change free

software--to make sure the software is free for all its users. This

General Public License applies to most of the Free Software

Foundation's software and to any other program whose authors commit to

using it. (Some other Free Software Foundation software is covered by

the GNU Library General Public License instead.) You can apply it to

your programs, too.