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-rw-r--r--examples/app/class/object.class.php485
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diff --git a/examples/app/class/object.class.php b/examples/app/class/object.class.php
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-<?php
-
-/*
- * SCROTT Copyright (C) 2016 Malf Furious
- *
- * Scrott is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published
- * by the Free Software Foundation, either version 3 of the License,
- * or (at your option) any later version.
- *
- * Scrott is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
- */
-
-require_once "class/framework.class.php";
-require_once "class/user.class.php";
-
-/*
- * Base class for Scrott database objects
- */
-abstract class Object extends Framework
-{
- var $DEFAULT_OBJECT_PERMISSIONS = 120;
-
- /*
- * Constructor
- */
- function __construct($childTable = "object", $childCols = null)
- {
- $this->db = $this->getDbConnection();
-
- $this->table = "object";
- $this->cols = array(
- "guid",
- "perms",
- "owner",
- "parent",
- "name",
- "timeCreated",
- "timeUpdated",
- "type"
- );
-
- $this->childTable = $this->db->esc($childTable);
- $this->childCols = array();
-
- if (is_array($childCols))
- {
- foreach ($childCols as $col)
- $this->childCols[] = $this->db->esc($col);
- }
- }
-
- /*
- * Get current timestamp for object database purposes
- */
- function getCurrentTimestamp()
- {
- $query = "SELECT now() AS stamp";
- $result = $this->db->query($query);
- return $result[0]['stamp'];
- }
-
- /*
- * Check whether given GUID exists
- */
- function isGUID($guid)
- {
- $query = "SELECT `guid` FROM `object` WHERE `guid` = '" . $this->db->esc($guid) . "'";
- $result = $this->db->query($query);
-
- if (count($result) > 0)
- return true;
-
- return false;
- }
-
- /*
- * Get a new, unique GUID for a new system object
- */
- function getNewGUID()
- {
- do
- {
- $guid = substr($this->getBlob(), 0, 8);
- }
- while ($this->isGUID($guid));
-
- return $guid;
- }
-
- /*
- * Get a random sha256 blob
- */
- function getBlob()
- {
- return hash("sha256", openssl_random_pseudo_bytes(64));
- }
-
- /*
- * Get a user object for this object's owner
- */
- function getOwner()
- {
- if (isset($this->owner))
- return new User($this->owner);
-
- return null;
- }
-
- /*
- * Get an array of all members of this object
- */
- function getMembers()
- {
- $query = "SELECT member FROM obj_member WHERE guid = '" . $this->db->esc($this->guid) . "'";
- $result = $this->db->query($query);
-
- $members = array();
-
- foreach ($result as $m)
- $members[] = new User($m['member']);
-
- return $members;
- }
-
- /*
- * Check if given user (or group) is the owner of this object
- */
- function isOwner($ug)
- {
- return $this->getOwner()->guid == $ug->guid;
- }
-
- /*
- * Check if given user (or group) is a member of this object
- */
- function isMember($ug)
- {
- foreach ($this->getMembers() as $member)
- {
- if ($member->guid == $ug->guid)
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canAccess($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user))
- return true;
-
- if ($this->perms & 0x004) // accessible by public
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canAccessSub($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canAccessSub($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canModify($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user) && $this->perms & 0x100)
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canModifySub($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canModifySub($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canModifyMembers($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user) && $this->perms & 0x080)
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canModifySubMembers($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canModifySubMembers($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canModifyPermissions($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canModifySubPermissions($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canModifySubPermissions($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canAccessSub($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user) && $this->perms & 0x040)
- return true;
-
- if ($this->perms & 0x002) // accessible by public
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canAccessSub($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canAccessSub($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canCreateSub($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user) && $this->perms & 0x020)
- return true;
-
- if ($this->perms & 0x001) // accessible by public
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canCreateSub($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canCreateSub($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canModifySub($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user) && $this->perms & 0x010)
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canModifySub($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canModifySub($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canModifySubMembers($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->isMember($user) && $this->perms & 0x008)
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canModifySubMembers($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canModifySubMembers($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Check if given user has permissions for this object
- */
- function canModifySubPermissions($user)
- {
- if ($user->admin)
- return true;
-
- if ($this->isOwner($user))
- return true;
-
- if ($this->parent != "")
- {
- $parent = new DBObject($this->parent);
-
- if ($parent->canModifySubPermissions($user))
- return true;
- }
- else if ($this->owner != $this->guid)
- {
- $owner = new DBObject($this->owner);
-
- if ($owner->canModifySubPermissions($user))
- return true;
- }
-
- return false;
- }
-
- /*
- * Get URL to this object
- */
- function getURL()
- {
- return $this->ar() . "/" . $this->guid;
- }
-
- /*
- * Get object's head image
- */
- function getHeadImage()
- {
- return $this->ar() . "/file.php?d=img/heads&f=" . $this->guid;
- }
-
- /*
- * Remove this object's head image
- */
- function rmHeadImage()
- {
- if (!is_file("assets/img/heads/" . $this->guid))
- return true;
-
- return unlink("assets/img/heads/" . $this->guid);
- }
-}
-
-/*
- * Concrete Database Object which can be used in a polymorphic way
- */
-class DBObject extends Object
-{
- /*
- * Constructor
- */
- function __construct($guid = null)
- {
- parent::__construct();
- $this->loadObj($guid);
- }
-}
-
-?>
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