File: /home4/cca63905/www/guiaweb/htdocs/viewimage.php
<?php
/* Copyright (C) 2004-2005 Rodolphe Quiedeville <rodolphe@quiedeville.org>
* Copyright (C) 2005-2016 Laurent Destailleur <eldy@users.sourceforge.net>
* Copyright (C) 2005-2016 Regis Houssin <regis.houssin@inodbox.com>
* Copyright (C) 2024 Frédéric France <frederic.france@free.fr>
* Copyright (C) 2024-2025 MDW <mdeweerd@users.noreply.github.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 <https://www.gnu.org/licenses/>.
* or see https://www.gnu.org/
*/
/**
* \file htdocs/viewimage.php
* \brief Wrapper to show images into Dolibarr screens.
* \remarks Call to wrapper is :
* DOL_URL_ROOT.'/viewimage.php?modulepart=diroffile&file=relativepathofofile&cache=0
* DOL_URL_ROOT.'/viewimage.php?hashp=sharekey
*/
define('MAIN_SECURITY_FORCECSP', "default-src: 'none'");
//if (! defined('NOREQUIREUSER')) define('NOREQUIREUSER','1'); // Not disabled cause need to load personalized language
//if (! defined('NOREQUIREDB')) define('NOREQUIREDB','1'); // Not disabled cause need to load personalized language
if (!defined('NOREQUIRESOC')) {
define('NOREQUIRESOC', '1');
}
if (!defined('NOREQUIRETRAN')) {
define('NOREQUIRETRAN', '1');
}
if (!defined('NOCSRFCHECK')) {
define('NOCSRFCHECK', '1');
}
if (!defined('NOTOKENRENEWAL')) {
define('NOTOKENRENEWAL', '1');
}
if (!defined('NOREQUIREMENU')) {
define('NOREQUIREMENU', '1');
}
if (!defined('NOREQUIREHTML')) {
define('NOREQUIREHTML', '1');
}
if (!defined('NOREQUIREAJAX')) {
define('NOREQUIREAJAX', '1');
}
// Some value of modulepart can be used to get resources that are public so no login are required.
// Note that only directory logo is free to access without login.
$needlogin = 1;
// Keep $_GET here, GETPOST is not available yet
if (isset($_GET["modulepart"])) {
// Some value of modulepart can be used to get resources that are public so no login are required.
// For logo of company
if ($_GET["modulepart"] == 'mycompany' && preg_match('/^\/?logos\//', $_GET['file'])) {
$needlogin = 0;
}
// For barcode live generation
if ($_GET["modulepart"] == 'barcode') {
$needlogin = 0;
}
// Medias files
if ($_GET["modulepart"] == 'medias') {
$needlogin = 0;
}
// Common files (files into /public/theme/common)
if ($_GET["modulepart"] == 'common') {
$needlogin = 0;
}
// User photo when user has made its profile public (for virtual credi card)
if ($_GET["modulepart"] == 'userphotopublic') {
$needlogin = 0;
}
// Used by TakePOS Auto Order
if ($_GET["modulepart"] == 'product' && isset($_GET["publictakepos"])) {
$needlogin = 0;
}
}
// For direct external download link, we don't need to load/check we are into a login session
if (isset($_GET["hashp"])) {
$needlogin = 0;
}
// If nologin required
if (!$needlogin) {
if (!defined("NOLOGIN")) {
define("NOLOGIN", 1);
}
if (!defined("NOCSRFCHECK")) {
define("NOCSRFCHECK", 1); // We accept to go on this page from external web site.
}
if (!defined("NOIPCHECK")) {
define("NOIPCHECK", 1); // Do not check IP defined into conf $dolibarr_main_restrict_ip
}
}
// For MultiCompany module.
// Do not use GETPOST here, function is not defined and define must be done before including main.inc.php
// Because 2 entities can have the same ref.
$entity = (!empty($_GET['entity']) ? (int) $_GET['entity'] : (!empty($_POST['entity']) ? (int) $_POST['entity'] : 1));
if (is_numeric($entity)) {
define("DOLENTITY", $entity);
}
/**
* Header empty
*
* Note: also called by functions.lib:recordNotFound
*
* @param string $head Optional head lines
* @param string $title HTML title
* @param string $help_url Url links to help page
* Syntax is: For a wiki page: EN:EnglishPage|FR:FrenchPage|ES:SpanishPage|DE:GermanPage
* For other external page: http://server/url
* @param string $target Target to use on links
* @param int $disablejs More content into html header
* @param int $disablehead More content into html header
* @param string[]|string $arrayofjs Array of complementary js files
* @param string[]|string $arrayofcss Array of complementary css files
* @param string $morequerystring Query string to add to the link "print" to get same parameters (use only if autodetect fails)
* @param string $morecssonbody More CSS on body tag. For example 'classforhorizontalscrolloftabs'.
* @param string $replacemainareaby Replace call to main_area() by a print of this string
* @param int $disablenofollow Disable the "nofollow" on meta robot header
* @param int $disablenoindex Disable the "noindex" on meta robot header
* @return void
*/
function llxHeader($head = '', $title = '', $help_url = '', $target = '', $disablejs = 0, $disablehead = 0, $arrayofjs = '', $arrayofcss = '', $morequerystring = '', $morecssonbody = '', $replacemainareaby = '', $disablenofollow = 0, $disablenoindex = 0) // @phan-suppress-current-line PhanRedefineFunction
{
}
/**
* Footer empty
*
* Note: also called by functions.lib:recordNotFound
*
* @param string $comment A text to add as HTML comment into HTML generated page
* @param string $zone 'private' (for private pages) or 'public' (for public pages)
* @param int $disabledoutputofmessages Clear all messages stored into session without displaying them
* @return void
*/
function llxFooter($comment = '', $zone = 'private', $disabledoutputofmessages = 0) // @phan-suppress-current-line PhanRedefineFunction
{
}
require 'main.inc.php'; // Load $user and permissions
require_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
/**
* @var Conf $conf
* @var DoliDB $db
* @var HookManager $hookmanager
* @var Translate $langs
* @var User $user
*/
$action = GETPOST('action', 'aZ09');
$original_file = GETPOST('file', 'alphanohtml');
$hashp = GETPOST('hashp', 'aZ09', 1);
$extname = GETPOST('extname', 'alpha', 1);
$modulepart = GETPOST('modulepart', 'alpha', 1);
$urlsource = GETPOST('urlsource', 'alpha');
$entity = (GETPOSTINT('entity') ? GETPOSTINT('entity') : $conf->entity);
// Security check
if (empty($modulepart) && empty($hashp)) {
httponly_accessforbidden('Bad link. Bad value for parameter modulepart', 400);
}
if (empty($original_file) && empty($hashp) && $modulepart != 'barcode') {
httponly_accessforbidden('Bad link. Missing identification to find file (param file or hashp)', 400);
}
if ($modulepart == 'fckeditor') {
$modulepart = 'medias'; // For backward compatibility
}
/*
* Actions
*/
// None
/*
* View
*/
$cachestring = GETPOST("cache", 'aZ09'); // May be 1, or an int, or a hash
if ($cachestring) {
// Important: The following code is to avoid a page request by the browser and PHP CPU at each Dolibarr page access.
// We are here when param cache=xxx to force a cache policy:
// xxx=1 means cache of 3600s
// xxx=abcdef or 123456789 means a cache of 1 week (the key will be modified to get break cache use)
if (empty($dolibarr_nocache)) {
$delaycache = ((is_numeric($cachestring) && (int) $cachestring > 1 && (int) $cachestring < 999999) ? $cachestring : '3600');
header('Cache-Control: max-age='.$delaycache.', public, must-revalidate');
header('Pragma: cache'); // This is to avoid to have Pragma: no-cache set by proxy or web server
header('Expires: '.gmdate('D, d M Y H:i:s', time() + (int) $delaycache).' GMT'); // This is to avoid to have Expires set by proxy or web server
} else {
// If any cache on files were disable by config file (for test purpose)
header('Cache-Control: no-cache');
}
//print $dolibarr_nocache; exit;
}
// If we have a hash public (hashp), we guess the original_file.
if (!empty($hashp)) {
include_once DOL_DOCUMENT_ROOT.'/ecm/class/ecmfiles.class.php';
include_once DOL_DOCUMENT_ROOT.'/core/lib/images.lib.php';
$ecmfile = new EcmFiles($db);
$result = $ecmfile->fetch(0, '', '', '', $hashp);
if ($result > 0) {
$tmp = explode('/', $ecmfile->filepath, 2); // $ecmfile->filepath is relative to document directory
// filepath can be 'users/X' or 'X/propale/PR11111'
if (is_numeric($tmp[0])) { // If first tmp is numeric, it is subdir of company for multicompany, we take next part.
$tmp = explode('/', $tmp[1], 2);
}
$moduleparttocheck = $tmp[0]; // moduleparttocheck is first part of path
if ($modulepart) { // Not required, so often not defined, for link using public hashp parameter.
if ($moduleparttocheck == $modulepart) {
// We remove first level of directory
$original_file = (($tmp[1] ? $tmp[1].'/' : '').$ecmfile->filename); // this is relative to module dir
//var_dump($original_file); exit;
} else {
httponly_accessforbidden('Bad link. File is from another module part.', 403);
}
} else {
$modulepart = $moduleparttocheck;
$original_file = (($tmp[1] ? $tmp[1].'/' : '').$ecmfile->filename); // this is relative to module dir
}
if ($extname) {
$original_file = getImageFileNameForSize($original_file, $extname);
}
} else {
httponly_accessforbidden("ErrorFileNotFoundWithSharedLink", 403, 1);
}
}
// Define mime type
$type = 'application/octet-stream';
if (GETPOST('type', 'alpha')) {
$type = GETPOST('type', 'alpha');
} else {
$type = dol_mimetype($original_file);
}
// Security: This wrapper is for images. We do not allow type/html
if (preg_match('/html/i', $type)) {
httponly_accessforbidden('Error: Using the image wrapper to output a file with a mime type HTML is not possible.');
}
// Security: This wrapper is for images. We do not allow files ending with .noexe
if (preg_match('/\.noexe$/i', $original_file)) {
httponly_accessforbidden('Error: Using the image wrapper to output a file ending with .noexe is not allowed.');
}
// Security: Delete string ../ or ..\ into $original_file
$original_file = preg_replace('/\.\.+/', '..', $original_file); // Replace '... or more' with '..'
$original_file = str_replace('../', '/', $original_file);
$original_file = str_replace('..\\', '/', $original_file);
// Find the subdirectory name as the reference
$refname = basename(dirname($original_file)."/");
if ($refname == 'thumbs') {
// If we get the thumbs directory, we must go one step higher. For example original_file='10/thumbs/myfile_small.jpg' -> refname='10'
$refname = basename(dirname(dirname($original_file))."/");
}
// Check that file is allowed for view with viewimage.php
if (!empty($original_file) && !dolIsAllowedForPreview($original_file)) {
httponly_accessforbidden('This file extension is not qualified for preview', 403);
}
// Security check
if (empty($modulepart)) {
httponly_accessforbidden('Bad value for parameter modulepart', 400);
}
// When logged in a different entity, medias cannot be accessed because $conf->$module->multidir_output
// is not set on the requested entity, but they are public documents, so reset entity
if ($modulepart === 'medias' && $entity != $conf->entity) {
$conf->entity = $entity;
$conf->setValues($db);
}
$check_access = dol_check_secure_access_document($modulepart, $original_file, $entity, $user, $refname);
$accessallowed = $check_access['accessallowed'];
$sqlprotectagainstexternals = $check_access['sqlprotectagainstexternals'];
$fullpath_original_file = $check_access['original_file']; // $fullpath_original_file is now a full path name
if (!empty($hashp)) {
$accessallowed = 1; // When using hashp, link is public so we force $accessallowed
$sqlprotectagainstexternals = '';
} elseif (GETPOSTINT("publictakepos")) {
if (getDolGlobalString('TAKEPOS_AUTO_ORDER') && in_array($modulepart, array('product', 'category'))) {
$accessallowed = 1; // When TakePOS Public Auto Order is enabled, we accept to see all images of product and categories with no login
// TODO Replace the use of link to viewimage with a call to get link by getPublicImageOfObject, like done by website templates so
// only shared images are visible
}
} else {
// Basic protection (against external users only)
if ($user->socid > 0) {
if ($sqlprotectagainstexternals) {
$resql = $db->query($sqlprotectagainstexternals);
if ($resql) {
$num = $db->num_rows($resql);
$i = 0;
while ($i < $num) {
$obj = $db->fetch_object($resql);
if ($user->socid != $obj->fk_soc) {
$accessallowed = 0;
break;
}
$i++;
}
}
}
}
}
// Security:
// Limit access if permissions are wrong
if (!$accessallowed) {
accessforbidden();
}
// Security:
// On interdit les remontees de repertoire ainsi que les pipe dans les noms de fichiers.
if (preg_match('/\.\./', $fullpath_original_file) || preg_match('/[<>|]/', $fullpath_original_file)) {
dol_syslog("Refused to deliver file ".$fullpath_original_file);
print "ErrorFileNameInvalid: ".dol_escape_htmltag($original_file);
exit;
}
if ($modulepart == 'barcode') {
$generator = GETPOST("generator", "aZ09");
$encoding = GETPOST("encoding", "aZ09");
$readable = GETPOST("readable", 'aZ09') ? GETPOST("readable", "aZ09") : "Y";
if (in_array($encoding, array('EAN8', 'EAN13'))) {
$code = GETPOST("code", 'alphanohtml');
} else {
$code = GETPOST("code", 'restricthtml'); // This can be rich content (qrcode, datamatrix, ...)
}
// If $code is virtualcard_xxx_999.vcf, it is a file to read to get code
$reg = array();
if (preg_match('/^virtualcard_([^_]+)_(\d+)\.vcf$/', $code, $reg)) {
$vcffile = '';
$id = 0;
$login = '';
if ($reg[1] == 'user' && (int) $reg[2] > 0) {
$vcffile = $conf->user->dir_temp.'/'.$code;
$id = (int) $reg[2];
$tmpuser = new User($db);
$tmpuser->fetch($id);
$login = $tmpuser->login;
} elseif ($reg[1] == 'contact' && (int) $reg[2] > 0) {
$vcffile = $conf->contact->dir_temp.'/'.$code;
$id = (int) $reg[2];
}
$code = '';
if ($vcffile && $id) {
// Case of use of viewimage to get the barcode for user pubic profile,
// we must check the securekey that protet against forging url
if ($reg[1] == 'user' && (int) $reg[2] > 0) {
$encodedsecurekey = dol_hash($conf->file->instance_unique_id.'uservirtualcard'.$id.'-'.$login, 'md5');
if ($encodedsecurekey != GETPOST('securekey')) {
$code = 'badvalueforsecurekey';
}
}
if (empty($code)) {
$code = file_get_contents($vcffile);
}
}
}
if (empty($generator) || empty($encoding)) {
print 'Error: Parameter "generator" or "encoding" not defined';
exit;
}
$dirbarcode = array_merge(array("/core/modules/barcode/doc/"), $conf->modules_parts['barcode']);
$result = 0;
foreach ($dirbarcode as $reldir) {
$dir = dol_buildpath($reldir, 0);
$newdir = dol_osencode($dir);
// Check if directory exists (we do not use dol_is_dir to avoid loading files.lib.php)
if (!is_dir($newdir)) {
continue;
}
$result = @include_once $newdir.$generator.'.modules.php';
if ($result) {
break;
}
}
// Load barcode class
$classname = "mod".ucfirst($generator);
$module = new $classname($db);
'@phan-var-force ModeleBarCode $module';
/** @var ModeleBarCode $module */
if ($module->encodingIsSupported($encoding)) {
$result = $module->buildBarCode($code, $encoding, $readable);
}
} else {
// Open and return file
clearstatcache();
$filename = basename($fullpath_original_file);
// Output files on browser
dol_syslog("viewimage.php return file $fullpath_original_file filename=$filename content-type=$type");
if (!dol_is_file($fullpath_original_file) && !GETPOSTINT("noalt", 1)) {
// This test is to replace error images with a nice "notfound image" when image is not available (for example when thumbs not yet generated).
$fullpath_original_file = DOL_DOCUMENT_ROOT.'/public/theme/common/nophoto.png';
/*$error='Error: File '.$_GET["file"].' does not exists or filesystems permissions are not allowed';
print $error;
exit;*/
}
// Permissions are ok and file found, so we return it
if ($type) {
top_httphead($type);
header('Content-Disposition: inline; filename="'.basename($fullpath_original_file).'"');
} else {
top_httphead('image/png');
header('Content-Disposition: inline; filename="'.basename($fullpath_original_file).'"');
}
$fullpath_original_file_osencoded = dol_osencode($fullpath_original_file);
readfile($fullpath_original_file_osencoded);
}
if (is_object($db)) {
$db->close();
}