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forked from Wavyzz/dolibarr
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dolibarr-fork/htdocs/core/lib/security.lib.php
Laurent Destailleur 8d206fdfb0 Prepare move to other licence. For the moment all answers for licence
upgrade were not yet received. So we prepare for GPL by uniformizing
licence text keys to GPL-3+. Will move later to AGPL if all answers are
positive.
2013-01-16 15:36:08 +01:00

500 lines
20 KiB
PHP

<?php
/* Copyright (C) 2008-2011 Laurent Destailleur <eldy@users.sourceforge.net>
* Copyright (C) 2008-2012 Regis Houssin <regis.houssin@capnetworks.com>
*
* This program 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* or see http://www.gnu.org/
*/
/**
* \file htdocs/core/lib/security.lib.php
* \ingroup core
* \brief Set of function used for dolibarr security (common function included into filefunc.inc.php)
* Warning, this file must not depends on other library files, except function.lib.php
* because it is used at low code level.
*/
/**
* Encode a string with base 64 algorithm + specific change
* Code of this function is useless and we should use base64_encode only instead
*
* @param string $chain string to encode
* @return string encoded string
*/
function dol_encode($chain)
{
$strlength=dol_strlen($chain);
for ($i=0; $i < $strlength; $i++)
{
$output_tab[$i] = chr(ord(substr($chain,$i,1))+17);
}
$string_coded = base64_encode(implode("",$output_tab));
return $string_coded;
}
/**
* Decode a base 64 encoded + specific string.
* This function is called by filefunc.inc.php at each page call.
* Code of this function is useless and we should use base64_decode only instead
*
* @param string $chain string to decode
* @return string decoded string
*/
function dol_decode($chain)
{
$chain = base64_decode($chain);
$strlength=dol_strlen($chain);
for($i=0; $i < $strlength;$i++)
{
$output_tab[$i] = chr(ord(substr($chain,$i,1))-17);
}
$string_decoded = implode("",$output_tab);
return $string_decoded;
}
/**
* Returns a hash of a string
*
* @param string $chain String to hash
* @param int $type Type of hash (0:md5, 1:sha1, 2:sha1+md5)
* @return string Hash of string
*/
function dol_hash($chain,$type=0)
{
if ($type == 1) return sha1($chain);
else if ($type == 2) return sha1(md5($chain));
else return md5($chain);
}
/**
* Check permissions of a user to show a page and an object. Check read permission.
* If GETPOST('action') defined, we also check write and delete permission.
*
* @param User $user User to check
* @param string $features Features to check (it must be module name. Examples: 'societe', 'contact', 'produit&service', ...)
* @param int $objectid Object ID if we want to check a particular record (optionnal) is linked to a owned thirdparty (optionnal).
* @param string $dbtablename 'TableName&SharedElement' with Tablename is table where object is stored. SharedElement is an optionnal key to define where to check entity. Not used if objectid is null (optionnal)
* @param string $feature2 Feature to check, second level of permission (optionnal)
* @param string $dbt_keyfield Field name for socid foreign key if not fk_soc. Not used if objectid is null (optionnal)
* @param string $dbt_select Field name for select if not rowid. Not used if objectid is null (optionnal)
* @param Canvas $objcanvas Object canvas
* @return int Always 1, die process if not allowed
*/
function restrictedArea($user, $features, $objectid=0, $dbtablename='', $feature2='', $dbt_keyfield='fk_soc', $dbt_select='rowid', $objcanvas=null)
{
global $db, $conf;
//dol_syslog("functions.lib:restrictedArea $feature, $objectid, $dbtablename,$feature2,$dbt_socfield,$dbt_select");
//print "user_id=".$user->id.", features=".$features.", feature2=".$feature2.", objectid=".$objectid;
//print ", dbtablename=".$dbtablename.", dbt_socfield=".$dbt_keyfield.", dbt_select=".$dbt_select;
//print ", perm: ".$features."->".$feature2."=".$user->rights->$features->$feature2->lire."<br>";
// If we use canvas, we try to use function that overlod restrictarea if provided with canvas
if (is_object($objcanvas))
{
if (method_exists($objcanvas->control,'restrictedArea')) return $objcanvas->control->restrictedArea($user,$features,$objectid,$dbtablename,$feature2,$dbt_keyfield,$dbt_select);
}
if ($dbt_select != 'rowid') $objectid = "'".$objectid."'";
// More features to check
$features = explode("&", $features);
// More parameters
$params = explode('&', $dbtablename);
$dbtablename=(! empty($params[0]) ? $params[0] : '');
$sharedelement=(! empty($params[1]) ? $params[1] : '');
$listofmodules=explode(',',$conf->global->MAIN_MODULES_FOR_EXTERNAL);
// Check read permission from module
$readok=1;
foreach ($features as $feature)
{
if (! empty($user->societe_id) && ! empty($conf->global->MAIN_MODULES_FOR_EXTERNAL) && ! in_array($feature,$listofmodules)) // If limits on modules for external users, module must be into list of modules for external users
{
$readok=0;
continue;
}
if ($feature == 'societe')
{
if (! $user->rights->societe->lire && ! $user->rights->fournisseur->lire) $readok=0;
}
else if ($feature == 'contact')
{
if (! $user->rights->societe->contact->lire) $readok=0;
}
else if ($feature == 'produit|service')
{
if (! $user->rights->produit->lire && ! $user->rights->service->lire) $readok=0;
}
else if ($feature == 'prelevement')
{
if (! $user->rights->prelevement->bons->lire) $readok=0;
}
else if ($feature == 'commande_fournisseur')
{
if (! $user->rights->fournisseur->commande->lire) $readok=0;
}
else if ($feature == 'cheque')
{
if (! $user->rights->banque->cheque) $readok=0;
}
else if ($feature == 'projet')
{
if (! $user->rights->projet->lire && ! $user->rights->projet->all->lire) $readok=0;
}
else if (! empty($feature2)) // This should be used for future changes
{
if (empty($user->rights->$feature->$feature2->lire)
&& empty($user->rights->$feature->$feature2->read)) $readok=0;
}
else if (! empty($feature) && ($feature!='user' && $feature!='usergroup')) // This is for old permissions
{
if (empty($user->rights->$feature->lire)
&& empty($user->rights->$feature->read)
&& empty($user->rights->$feature->run)) $readok=0;
}
}
if (! $readok) accessforbidden();
//print "Read access is ok";
// Check write permission from module
$createok=1;
if (GETPOST("action") == 'create')
{
foreach ($features as $feature)
{
if ($feature == 'contact')
{
if (! $user->rights->societe->contact->creer) $createok=0;
}
else if ($feature == 'produit|service')
{
if (! $user->rights->produit->creer && ! $user->rights->service->creer) $createok=0;
}
else if ($feature == 'prelevement')
{
if (! $user->rights->prelevement->bons->creer) $createok=0;
}
else if ($feature == 'commande_fournisseur')
{
if (! $user->rights->fournisseur->commande->creer) $createok=0;
}
else if ($feature == 'banque')
{
if (! $user->rights->banque->modifier) $createok=0;
}
else if ($feature == 'cheque')
{
if (! $user->rights->banque->cheque) $createok=0;
}
else if (! empty($feature2)) // This should be used for future changes
{
if (empty($user->rights->$feature->$feature2->creer)
&& empty($user->rights->$feature->$feature2->write)) $createok=0;
}
else if (! empty($feature)) // This is for old permissions
{
//print '<br>feature='.$feature.' creer='.$user->rights->$feature->creer.' write='.$user->rights->$feature->write;
if (empty($user->rights->$feature->creer)
&& empty($user->rights->$feature->write)) $createok=0;
}
}
if (! $createok) accessforbidden();
//print "Write access is ok";
}
// Check create user permission
$createuserok=1;
if (GETPOST("action") == 'confirm_create_user' && GETPOST("confirm") == 'yes')
{
if (! $user->rights->user->user->creer) $createuserok=0;
if (! $createuserok) accessforbidden();
//print "Create user access is ok";
}
// Check delete permission from module
$deleteok=1;
if ((GETPOST("action") == 'confirm_delete' && GETPOST("confirm") == 'yes') || GETPOST("action") == 'delete')
{
foreach ($features as $feature)
{
if ($feature == 'contact')
{
if (! $user->rights->societe->contact->supprimer) $deleteok=0;
}
else if ($feature == 'produit|service')
{
if (! $user->rights->produit->supprimer && ! $user->rights->service->supprimer) $deleteok=0;
}
else if ($feature == 'commande_fournisseur')
{
if (! $user->rights->fournisseur->commande->supprimer) $deleteok=0;
}
else if ($feature == 'banque')
{
if (! $user->rights->banque->modifier) $deleteok=0;
}
else if ($feature == 'cheque')
{
if (! $user->rights->banque->cheque) $deleteok=0;
}
else if ($feature == 'ecm')
{
if (! $user->rights->ecm->upload) $deleteok=0;
}
else if ($feature == 'ftp')
{
if (! $user->rights->ftp->write) $deleteok=0;
}
else if (! empty($feature2)) // This should be used for future changes
{
if (empty($user->rights->$feature->$feature2->supprimer)
&& empty($user->rights->$feature->$feature2->delete)) $deleteok=0;
}
else if (! empty($feature)) // This is for old permissions
{
//print '<br>feature='.$feature.' creer='.$user->rights->$feature->supprimer.' write='.$user->rights->$feature->delete;
if (empty($user->rights->$feature->supprimer)
&& empty($user->rights->$feature->delete)
&& empty($user->rights->$feature->run)) $deleteok=0;
}
}
//print "Delete access is ko";
if (! $deleteok) accessforbidden();
//print "Delete access is ok";
}
// If we have a particular object to check permissions on, we check this object
// is linked to a company allowed to $user.
if (! empty($objectid) && $objectid > 0)
{
foreach ($features as $feature)
{
$sql='';
$check = array('adherent','banque','user','usergroup','produit','service','produit|service','categorie'); // Test on entity only (Objects with no link to company)
$checksoc = array('societe'); // Test for societe object
$checkother = array('contact'); // Test on entity and link to societe. Allowed if link is empty (Ex: contacts...).
$checkproject = array('projet'); // Test for project object
$nocheck = array('barcode','stock','fournisseur'); // No test
$checkdefault = 'all other not already defined'; // Test on entity and link to third party. Not allowed if link is empty (Ex: invoice, orders...).
// If dbtable not defined, we use same name for table than module name
if (empty($dbtablename)) $dbtablename = $feature;
// Check permission for object with entity
if (in_array($feature,$check))
{
$sql = "SELECT dbt.".$dbt_select;
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " WHERE dbt.".$dbt_select." = ".$objectid;
if (($feature == 'user' || $feature == 'usergroup') && ! empty($conf->multicompany->enabled) && $conf->entity == 1 && $user->admin && ! $user->entity)
{
$sql.= " AND dbt.entity IS NOT NULL";
}
else
{
$sql.= " AND dbt.entity IN (".getEntity($sharedelement, 1).")";
}
}
else if (in_array($feature,$checksoc))
{
// If external user: Check permission for external users
if ($user->societe_id > 0)
{
if ($user->societe_id <> $objectid) accessforbidden();
}
// If internal user: Check permission for internal users that are restricted on their objects
else if (! empty($conf->societe->enabled) && ($user->rights->societe->lire && ! $user->rights->societe->client->voir))
{
$sql = "SELECT sc.fk_soc";
$sql.= " FROM (".MAIN_DB_PREFIX."societe_commerciaux as sc";
$sql.= ", ".MAIN_DB_PREFIX."societe as s)";
$sql.= " WHERE sc.fk_soc = ".$objectid;
$sql.= " AND sc.fk_user = ".$user->id;
$sql.= " AND sc.fk_soc = s.rowid";
$sql.= " AND s.entity IN (".getEntity($sharedelement, 1).")";
}
// If multicompany and internal users with all permissions, check user is in correct entity
else if (! empty($conf->multicompany->enabled))
{
$sql = "SELECT s.rowid";
$sql.= " FROM ".MAIN_DB_PREFIX."societe as s";
$sql.= " WHERE s.rowid = ".$objectid;
$sql.= " AND s.entity IN (".getEntity($sharedelement, 1).")";
}
}
else if (in_array($feature,$checkother))
{
// If external user: Check permission for external users
if ($user->societe_id > 0)
{
$sql = "SELECT dbt.rowid";
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " WHERE dbt.rowid = ".$objectid;
$sql.= " AND dbt.fk_soc = ".$user->societe_id;
}
// If internal user: Check permission for internal users that are restricted on their objects
else if (! empty($conf->societe->enabled) && ($user->rights->societe->lire && ! $user->rights->societe->client->voir))
{
$sql = "SELECT dbt.rowid";
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " LEFT JOIN ".MAIN_DB_PREFIX."societe_commerciaux as sc ON dbt.fk_soc = sc.fk_soc AND sc.fk_user = '".$user->id."'";
$sql.= " WHERE dbt.rowid = ".$objectid;
$sql.= " AND (dbt.fk_soc IS NULL OR sc.fk_soc IS NOT NULL)"; // Contact not linked to a company or to a company of user
$sql.= " AND dbt.entity IN (".getEntity($sharedelement, 1).")";
}
// If multicompany and internal users with all permissions, check user is in correct entity
else if (! empty($conf->multicompany->enabled))
{
$sql = "SELECT dbt.rowid";
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " WHERE dbt.rowid = ".$objectid;
$sql.= " AND dbt.entity IN (".getEntity($sharedelement, 1).")";
}
}
else if (in_array($feature,$checkproject))
{
if (! empty($conf->projet->enabled) && ! $user->rights->projet->all->lire)
{
include_once DOL_DOCUMENT_ROOT.'/projet/class/project.class.php';
$projectstatic=new Project($db);
$tmps=$projectstatic->getProjectsAuthorizedForUser($user,0,1,0);
$tmparray=explode(',',$tmps);
if (! in_array($objectid,$tmparray)) accessforbidden();
}
else
{
$sql = "SELECT dbt.".$dbt_select;
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " WHERE dbt.".$dbt_select." = ".$objectid;
$sql.= " AND dbt.entity IN (".getEntity($sharedelement, 1).")";
}
}
else if (! in_array($feature,$nocheck)) // By default we check with link to third party
{
// If external user: Check permission for external users
if ($user->societe_id > 0)
{
$sql = "SELECT dbt.".$dbt_keyfield;
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " WHERE dbt.rowid = ".$objectid;
$sql.= " AND dbt.".$dbt_keyfield." = ".$user->societe_id;
}
// If internal user: Check permission for internal users that are restricted on their objects
else if (! empty($conf->societe->enabled) && ($user->rights->societe->lire && ! $user->rights->societe->client->voir))
{
$sql = "SELECT sc.fk_soc";
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= ", ".MAIN_DB_PREFIX."societe as s";
$sql.= ", ".MAIN_DB_PREFIX."societe_commerciaux as sc";
$sql.= " WHERE dbt.".$dbt_select." = ".$objectid;
$sql.= " AND sc.fk_soc = dbt.".$dbt_keyfield;
$sql.= " AND dbt.".$dbt_keyfield." = s.rowid";
$sql.= " AND s.entity IN (".getEntity($sharedelement, 1).")";
$sql.= " AND sc.fk_user = ".$user->id;
}
// If multicompany and internal users with all permissions, check user is in correct entity
else if (! empty($conf->multicompany->enabled))
{
$sql = "SELECT dbt.".$dbt_select;
$sql.= " FROM ".MAIN_DB_PREFIX.$dbtablename." as dbt";
$sql.= " WHERE dbt.".$dbt_select." = ".$objectid;
$sql.= " AND dbt.entity IN (".getEntity($sharedelement, 1).")";
}
}
//print $sql."<br>";
if ($sql)
{
$resql=$db->query($sql);
if ($resql)
{
if ($db->num_rows($resql) == 0) accessforbidden();
}
else
{
dol_syslog("security.lib:restrictedArea sql=".$sql, LOG_ERR);
accessforbidden();
}
}
}
}
return 1;
}
/**
* Show a message to say access is forbidden and stop program
* Calling this function terminate execution of PHP.
*
* @param string $message Force error message
* @param int $printheader Show header before
* @param int $printfooter Show footer after
* @param int $showonlymessage Show only message parameter. Otherwise add more information.
* @return void
*/
function accessforbidden($message='',$printheader=1,$printfooter=1,$showonlymessage=0)
{
global $conf, $db, $user, $langs;
if (! is_object($langs))
{
include_once DOL_DOCUMENT_ROOT.'/core/class/translate.class.php';
$langs=new Translate('',$conf);
}
$langs->load("errors");
if ($printheader)
{
if (function_exists("llxHeader")) llxHeader('');
else if (function_exists("llxHeaderVierge")) llxHeaderVierge('');
}
print '<div class="error">';
if (! $message) print $langs->trans("ErrorForbidden");
else print $message;
print '</div>';
print '<br>';
if (empty($showonlymessage))
{
if ($user->login)
{
print $langs->trans("CurrentLogin").': <font class="error">'.$user->login.'</font><br>';
print $langs->trans("ErrorForbidden2",$langs->trans("Home"),$langs->trans("Users"));
}
else
{
print $langs->trans("ErrorForbidden3");
}
}
if ($printfooter && function_exists("llxFooter")) llxFooter();
exit(0);
}
?>