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functions_images.inc.php
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<?php
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
if (IN_serendipity !== true) {
die ("Don't hack!");
}
/**
* Check if an uploaded file is "evil"
*
* @access public
* @param string Input filename
* @return boolean
*/
function serendipity_isActiveFile($file) {
if (preg_match('@^\.@', $file)) {
return true;
}
$core = preg_match('@\.(php.*|[psj]html?|pht|aspx?|cgi|jsp|py|pl)$@i', $file);
if ($core) {
return true;
}
$eventData = false;
serendipity_plugin_api::hook_event('backend_media_check', $eventData, $file);
return $eventData;
}
/**
* Gets a list of media items from our media database
*
* LONG
*
* @access public
* @param int The offset to start fetching media files
* @param int How many items to fetch
* @param int The number (referenced variable) of fetched items
* @param string The "ORDER BY" sql part when fetching items
* @param string Order by DESC or ASC
* @param string Only fetch files from a specific directory
* @param string Only fetch specific filenames (including check for realname match)
* @param string Only fetch media with specific keyword
* @param array An array of restricting filter sets
* @param boolean Apply strict directory checks, or include subdirectories?
* @return array Resultset of images
*/
function serendipity_fetchImagesFromDatabase($start=0, $limit=0, &$total=null, $order = false, $ordermode = false, $directory = '', $filename = '', $keywords = '', $filter = array(), $hideSubdirFiles = false) {
global $serendipity;
$cond = array(
'joinparts' => array(),
'parts' => array(),
);
$orderfields = serendipity_getImageFields();
if (empty($order) || !isset($orderfields[$order])) {
$order = 'i.date';
}
if (!is_array($filter)) {
$filter = array();
}
if (empty($ordermode) || ($ordermode != 'DESC' && $ordermode != 'ASC')) {
$ordermode = 'DESC';
}
if ($order == 'name') {
$order = 'realname ' . $ordermode . ', name';
}
if ($limit != 0) {
$limitsql = serendipity_db_limit_sql(serendipity_db_limit($start, $limit));
} else {
$limitsql = '';
}
if ($hideSubdirFiles == false) {
if (!empty($directory)) {
$cond['parts']['directory'] = " AND i.path LIKE '" . serendipity_db_escape_string($directory) . "%'\n";
}
// if in root, having no directory set, the query fetches all files by default, meaning we are done
} else {
if (!empty($directory)) {
$cond['parts']['directory'] = " AND i.path LIKE '" . serendipity_db_escape_string($directory) . "%'\n";
} else {
$cond['parts']['directory'] = " AND i.path = ''\n";
}
}
if (!empty($filename)) {
$cond['parts']['filename'] = " AND (i.name like '%" . serendipity_db_escape_string($filename) . "%' OR
i.realname like '%" . serendipity_db_escape_string($filename) . "%')\n";
}
if (!is_array($keywords)) {
if (!empty($keywords)) {
$keywords = explode(';', $keywords);
} else {
$keywords = array();
}
}
if (count($keywords) > 0) {
$cond['parts']['keywords'] = " AND (mk.property IN ('" . serendipity_db_implode("', '", $keywords, 'string') . "'))\n";
$cond['joinparts']['keywords'] = true;
}
$cond['parts']['filter'] = '';
foreach($filter AS $f => $fval) {
if (! (isset($orderfields[$f]) || $f == "fileCategory") || empty($fval)) {
continue;
}
if (is_array($fval)) {
if (empty($fval['from']) || empty($fval['to'])) {
continue;
}
if ($orderfields[$f]['type'] == 'date') {
$fval['from'] = serendipity_convertToTimestamp(trim($fval['from']));
$fval['to'] = serendipity_convertToTimestamp(trim($fval['to']));
}
if (substr($f, 0, 3) === 'bp.') {
$realf = substr($f, 3);
$cond['parts']['filter'] .= " AND (bp2.property = '$realf' AND bp2.value >= " . (int)$fval['from'] . " AND bp2.value <= " . (int)$fval['to'] . ")\n";
} else {
$cond['parts']['filter'] .= " AND ($f >= " . (int)$fval['from'] . " AND $f <= " . (int)$fval['to'] . ")\n";
}
} elseif ($f == 'i.authorid') {
$cond['parts']['filter'] .= " AND (
(hp.property = 'authorid' AND hp.value = " . (int)$fval . ")
OR
(i.authorid = " . (int)$fval . ")
)\n";
$cond['joinparts']['hiddenproperties'] = true;
} elseif (($orderfields[$f]['type'] ?? null) == 'int') {
if (substr($f, 0, 3) === 'bp.') {
$realf = substr($f, 3);
$cond['parts']['filter'] .= " AND (bp2.property = '$realf' AND bp2.value = '" . serendipity_db_escape_string(trim($fval)) . "')\n";
} else {
$cond['parts']['filter'] .= " AND ($f = '" . serendipity_db_escape_string(trim($fval)) . "')\n";
}
} elseif ($f == 'fileCategory') {
switch ($fval) {
case 'image':
$cond['parts']['filter'] .= " AND (i.mime LIKE 'image/%')\n";
break;
case 'video':
$cond['parts']['filter'] .= " AND (i.mime LIKE 'video/%')\n";
break;
}
} else {
if (substr($f, 0, 3) === 'bp.') {
$realf = substr($f, 3);
$cond['parts']['filter'] .= " AND (bp2.property = '$realf' AND bp2.value LIKE '%" . serendipity_db_escape_string(trim($fval)) . "%')\n";
} else {
$cond['parts']['filter'] .= " AND ($f LIKE '%" . serendipity_db_escape_string(trim($fval)) . "%')\n";
}
}
$cond['joinparts']['filterproperties'] = true;
}
if (isset($serendipity['authorid']) && !serendipity_checkPermission('adminImagesViewOthers')) {
$cond['parts']['authorid'] .= " AND (i.authorid = 0 OR i.authorid = " . (int)$serendipity['authorid'] . ")\n";
}
$cond['and'] = 'WHERE 1=1 ' . implode("\n", $cond['parts']);
$cond['args'] = func_get_args();
serendipity_plugin_api::hook_event('fetch_images_sql', $cond);
serendipity_ACL_SQL($cond, false, 'directory');
if ($cond['joinparts']['keywords'] ?? false) {
$cond['joins'] .= "\n LEFT OUTER JOIN {$serendipity['dbPrefix']}mediaproperties AS mk
ON (mk.mediaid = i.id AND mk.property_group = 'base_keyword')\n";
}
if (substr($order, 0, 3) === 'bp.') {
$cond['orderproperty'] = substr($order, 3);
$cond['orderkey'] = 'bp.value';
$order = 'bp.value';
$cond['joinparts']['properties'] = true;
} else {
$cond['orderkey'] = "''";
}
if (!isset($cond['joins'])) {
$cond['joins'] = '';
}
if ($cond['joinparts']['properties'] ?? false) {
$cond['joins'] .= "\n LEFT OUTER JOIN {$serendipity['dbPrefix']}mediaproperties AS bp
ON (bp.mediaid = i.id AND bp.property_group = 'base_property' AND bp.property = '{$cond['orderproperty']}')\n";
}
if ($cond['joinparts']['filterproperties'] ?? false) {
$cond['joins'] .= "\n LEFT OUTER JOIN {$serendipity['dbPrefix']}mediaproperties AS bp2
ON (bp2.mediaid = i.id AND bp2.property_group = 'base_property')\n";
}
if ($cond['joinparts']['hiddenproperties'] ?? false) {
$cond['joins'] .= "\n LEFT OUTER JOIN {$serendipity['dbPrefix']}mediaproperties AS hp
ON (hp.mediaid = i.id AND hp.property_group = 'base_hidden')\n";
}
if ($serendipity['dbType'] == 'postgres' ||
$serendipity['dbType'] == 'pdo-postgres') {
$cond['group'] = '';
$cond['distinct'] = 'DISTINCT';
} else {
$cond['group'] = 'GROUP BY i.id';
$cond['distinct'] = '';
}
if (!isset($cond['joins'])) {
$cond['joins'] = '';
}
$basequery = "FROM {$serendipity['dbPrefix']}images AS i
LEFT OUTER JOIN {$serendipity['dbPrefix']}authors AS a
ON i.authorid = a.authorid
{$cond['joins']}
{$cond['and']}";
$query = "SELECT {$cond['distinct']} i.id, {$cond['orderkey']} AS orderkey, i.name, i.extension, i.mime, i.size, i.dimensions_width, i.dimensions_height, i.date, i.thumbnail_name, i.authorid, i.path, i.hotlink, i.realname,
a.realname AS authorname
$basequery
{$cond['group']}
ORDER BY $order $ordermode $limitsql";
$rs = serendipity_db_query($query, false, 'assoc');
if (!is_array($rs) && $rs !== true && $rs !== 1) {
echo '<div>' . $rs . '</div>';
return array();
} elseif (!is_array($rs)) {
return array();
}
$total_query = "SELECT count(i.id)
$basequery
GROUP BY i.id";
$total_rs = serendipity_db_query($total_query, false, 'num');
if (is_array($total_rs)) {
$total = count($total_rs);
}
return $rs;
}
/**
* Fetch a specific media item from the mediadatabase
*
* @access public
* @param int The ID of an media item
* @return array The media info data
*/
function serendipity_fetchImageFromDatabase($id, $mode = 'read') {
global $serendipity;
if (is_array($id)) {
$cond = array(
'and' => "WHERE i.id IN (" . serendipity_db_implode(',', $id) . ")"
);
$single = false;
$assocKey = 'id';
$assocVal = false;
} else {
$cond = array(
'and' => "WHERE i.id = " . (int)$id
);
$single = true;
$assocKey = false;
$assocVal = false;
}
if ($serendipity['dbType'] == 'postgres' ||
$serendipity['dbType'] == 'pdo-postgres') {
$cond['group'] = '';
$cond['distinct'] = 'DISTINCT';
} else {
$cond['group'] = 'GROUP BY i.id';
$cond['distinct'] = '';
}
if ($mode != 'discard') {
serendipity_ACL_SQL($cond, false, 'directory', $mode);
}
if (!isset($cond['joins'])) {
$cond['joins'] = '';
}
$rs = serendipity_db_query("SELECT {$cond['distinct']} i.id, i.name, i.extension, i.mime, i.size, i.dimensions_width, i.dimensions_height, i.date, i.thumbnail_name, i.authorid, i.path, i.hotlink, i.realname
FROM {$serendipity['dbPrefix']}images AS i
{$cond['joins']}
{$cond['and']}
{$cond['group']}", $single, 'assoc', false, $assocKey, $assocVal);
return $rs;
}
/**
* Update a media item
*
* @access public
* @param array An array of columns to update
* @param int The ID of an media item to update
* @return boolean
*/
function serendipity_updateImageInDatabase($updates, $id) {
global $serendipity;
$admin = '';
if (!serendipity_checkPermission('adminImagesAdd')) {
$admin = ' AND (authorid = ' . $serendipity['authorid'] . ' OR authorid = 0)';
}
$i = 0;
if (sizeof($updates) > 0) {
$imageBeforeChange = serendipity_fetchImageFromDatabase($id);
foreach ($updates AS $k => $v) {
$q[] = $k ." = '" . serendipity_db_escape_string($v) . "'";
}
serendipity_db_query("UPDATE {$serendipity['dbPrefix']}images SET ". implode(',', $q) ." WHERE id = " . (int)$id . " $admin");
$i++;
// Check if this update changes important directory or filename attributes.
// If yes, the plugin API will forward this change of files to plugins like
// staticpage, so that they can update their contents.
if (isset($updates['path']) || isset($updates['realname'])) {
if (! isset($updates['path'])) {
$updates['path'] = $imageBeforeChange['path'];
}
if (! isset($updates['realname'])) {
$updates['realname'] = $imageBeforeChange['realname'];
}
// NOTE: Previously, the API supported multiple rename tasks like dir, filedir and file
// Now the core will ALWAYS propagate each file change distinctly, never will a directory
// be submitted to the API.
$eventData = array( // array in array because the event api expects that
array(
'type' => 'file',
'oldDir' => $imageBeforeChange['path'] . $imageBeforeChange['realname'],
'newDir' => $updates['path'] . $updates['realname']
)
);
serendipity_plugin_api::hook_event('backend_media_rename', $eventData);
}
// If the user manually saved the image properties, some values might need updating now
// Name and realname are saved there as well, and the title is set to the name by default
if (isset($updates['realname'])) {
$q = "UPDATE {$serendipity['dbPrefix']}mediaproperties
SET value = '" . serendipity_db_escape_string($updates['realname']) . "'
WHERE mediaid = " . (int)$imageBeforeChange['id'] . ' AND property = "realname" AND value = "' . $imageBeforeChange['realname'] . '"';
serendipity_db_query($q);
$q = "UPDATE {$serendipity['dbPrefix']}mediaproperties
SET value = '" . serendipity_db_escape_string($updates['realname']) . "'
WHERE mediaid = " . (int)$imageBeforeChange['id'] . ' AND property = "TITLE" AND value = "' . $imageBeforeChange['realname'] .'"';
serendipity_db_query($q);
}
if (isset($updates['name'])) {
$q = "UPDATE {$serendipity['dbPrefix']}mediaproperties
SET value = '" . $updates['name'] . "'
WHERE mediaid = " . (int)$imageBeforeChange['id'] . ' AND property = "name" AND value = "' . $imageBeforeChange['name'] .'"';
serendipity_db_query($q);
}
}
return $i;
}
/**
* Delete a media item
*
* @access public
* @param int The ID of a media item to delete
* @return
*/
function serendipity_deleteImage($id) {
global $serendipity;
$dThumb = array();
$messages = '';
$file = serendipity_fetchImageFromDatabase($id);
if (!is_array($file)) {
$messages .= sprintf('<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . FILE_NOT_FOUND . "</span>\n", $id);
//return false;
} else {
$dFile = $file['path'] . $file['name'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
$dThumb = array(array(
'fthumb' => $file['thumbnail_name']
));
if (!serendipity_checkPermission('adminImagesDelete')) {
return;
}
if (!serendipity_checkPermission('adminImagesMaintainOthers') && $file['authorid'] != '0' && $file['authorid'] != $serendipity['authorid']) {
// A non-admin user may not delete private files from other users.
return;
}
if (!$file['hotlink']) {
if (file_exists($serendipity['serendipityPath'] . $serendipity['uploadPath'] . $dFile)) {
if (@unlink($serendipity['serendipityPath'] . $serendipity['uploadPath'] . $dFile)) {
$messages .= sprintf('<span class="msg_success"><span class="icon-ok-circled" aria-hidden="true"></span> ' . DELETE_FILE . "</span>\n", $dFile);
} else {
$messages .= sprintf('<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . DELETE_FILE_FAIL . "</span>\n", $dFile);
}
serendipity_plugin_api::hook_event('backend_media_delete', $dThumb);
foreach($dThumb AS $thumb) {
$dfnThumb = $file['path'] . $file['name'] . (!empty($thumb['fthumb']) ? '.' . $thumb['fthumb'] : '') . (empty($file['extension']) ? '' : '.' . $file['extension']);
$dfThumb = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $dfnThumb;
if (file_exists($dfThumb) && @unlink($dfThumb)) {
$messages .= sprintf('<span class="msg_success"><span class="icon-ok-circled" aria-hidden="true"></span> ' . DELETE_THUMBNAIL . "</span>\n", $dfnThumb);
}
}
} else {
$messages .= sprintf('<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . FILE_NOT_FOUND . "</span>\n", $dFile);
}
} else {
$messages .= sprintf('<span class="msg_hint"><span class="icon-help-circled" aria-hidden="true"></span> ' . DELETE_HOTLINK_FILE . "</span>\n", $file['name']);
}
serendipity_db_query("DELETE FROM {$serendipity['dbPrefix']}images WHERE id = ". (int)$id);
serendipity_db_query("DELETE FROM {$serendipity['dbPrefix']}mediaproperties WHERE mediaid = ". (int)$id);
}
return $messages;
}
/**
* Open a directory and fetch all existing media items
*
* @access public
* @param boolean deprecated
* @param int deprecated
* @param int deprecated
* @param array Array list of found items
* @param string sub-directory to investigate [recursive use]
* @return array List of media items
*/
function serendipity_fetchImages($group = false, $start = 0, $end = 20, $images = '', $odir = '') {
global $serendipity;
// Open directory
$basedir = $serendipity['serendipityPath'] . $serendipity['uploadPath'];
$images = array();
if ($dir = @opendir($basedir . $odir)) {
$aTempArray = array();
while (($file = @readdir($dir)) !== false) {
if ($file == '.svn' || $file == 'CVS' || $file == '.htaccess' || strtolower($file) == 'thumbs.db' || $file == '.' || $file == '..') {
continue; // 2013/06/05 added exclude .htaccess for ckeditor/kcfinder usage and 2013/12/25 added thumbs.db
}
array_push($aTempArray, $file);
}
@closedir($dir);
sort($aTempArray);
foreach($aTempArray AS $f) {
if (strpos($f, $serendipity['thumbSuffix']) !== false) {
// This is a s9y thumbnail, skip it.
continue;
}
$cdir = ($odir != '' ? $odir . '/' : '');
if (is_dir($basedir . $odir . '/' . $f)) {
$temp = serendipity_fetchImages($group, $start, $end, $images, $cdir . $f);
foreach($temp AS $tkey => $tval) {
array_push($images, $tval);
}
} else {
array_push($images, $cdir . $f);
}
}
}
natsort($images);
/* BC */
$serendipity['imageList'] = $images;
return $images;
}
/**
* Inserts a hotlinked media file
*
* hotlinks are files that are only linked in your database, and not really stored on your server
*
* @access public
* @param string The filename to hotlink
* @param string The URL to hotlink with
* @param int The owner of the hotlinked media item
* @param int The timestamp of insertion (unix second)
* @param string A temporary filename for fetching the file to investigate it
* @return int The ID of the inserted media item
*/
function serendipity_insertHotlinkedImageInDatabase($filename, $url, $authorid = 0, $time = NULL, $tempfile = NULL) {
global $serendipity;
if (is_null($time)) {
$time = time();
}
list($filebase, $extension) = serendipity_parseFileName($filename);
if ($tempfile && file_exists($tempfile)) {
$filesize = @filesize($tempfile);
$fdim = @serendipity_getimagesize($tempfile, '', $extension);
$width = $fdim[0];
$height = $fdim[1];
$mime = $fdim['mime'];
@unlink($tempfile);
}
$query = sprintf(
"INSERT INTO {$serendipity['dbPrefix']}images (
name,
date,
authorid,
extension,
mime,
size,
dimensions_width,
dimensions_height,
path,
hotlink,
realname
) VALUES (
'%s',
%s,
%s,
'%s',
'%s',
%s,
%s,
%s,
'%s',
1,
'%s'
)",
serendipity_db_escape_string($filebase),
(int)$time,
(int)$authorid,
serendipity_db_escape_string($extension),
serendipity_db_escape_string($mime),
(int)$filesize,
(int)$width,
(int)$height,
serendipity_db_escape_string($url),
serendipity_db_escape_string($filename)
);
$sql = serendipity_db_query($query);
if (is_string($sql)) {
echo '<span class="block_level">' . $query . "</span>\n";
echo '<span class="block_level">' . $sql . "</span>\n";
}
$image_id = serendipity_db_insert_id('images', 'id');
if ($image_id > 0) {
return $image_id;
}
return 0;
}
/**
* Insert a media item in the database
*
* @access public
* @param string The filename of the media item
* @param string The path to the media item
* @param int The owner author of the item
* @param int The timestamp of when the media item was inserted
* @return int The new media ID
*/
function serendipity_insertImageInDatabase($filename, $directory, $authorid = 0, $time = NULL, $realname = NULL) {
global $serendipity;
if (is_null($time)) {
$time = time();
}
if (is_null($realname)) {
$realname = $filename;
}
$filepath = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $directory . $filename;
$filesize = @filesize($filepath);
list($filebase, $extension) = serendipity_parseFileName($filename);
$thumbpath = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $directory . $filebase . '.'. $serendipity['thumbSuffix'] . (empty($extension) ? '' : '.' . $extension);
$thumbnail = (file_exists($thumbpath) ? $serendipity['thumbSuffix'] : '');
$fdim = @serendipity_getimagesize($filepath, '', $extension);
$width = $fdim[0];
$height = $fdim[1];
$mime = $fdim['mime'];
$query = sprintf(
"INSERT INTO {$serendipity['dbPrefix']}images (
name,
extension,
mime,
size,
dimensions_width,
dimensions_height,
thumbnail_name,
date,
authorid,
path,
realname
) VALUES (
'%s',
'%s',
'%s',
%s,
%s,
%s,
'%s',
%s,
%s,
'%s',
'%s'
)",
serendipity_db_escape_string($filebase),
serendipity_db_escape_string($extension),
serendipity_db_escape_string($mime),
(int)$filesize,
(int)$width,
(int)$height,
serendipity_db_escape_string($thumbnail),
(int)$time,
(int)$authorid,
serendipity_db_escape_string($directory),
serendipity_db_escape_string($realname)
);
$sql = serendipity_db_query($query);
if (is_string($sql)) {
echo '<span class="block_level">' . $query . "</span>\n";
echo '<span class="block_level">' . $sql . "</span>\n";
}
$image_id = serendipity_db_insert_id('images', 'id');
if ($image_id > 0) {
return $image_id;
serendipity_cleanCache();
}
return 0;
}
/**
* Create a thumbnail for an image
*
* LONG
*
* @access public
* @param string The input image filename
* @param string The directory to the image file
* @param string The target size of the thumbnail (2-dimensional array width,height)
* @param string Name of the thumbnail
* @param bool Store thumbnail in temporary place?
* @param bool Force enlarging of small images?
* @return array The result size of the thumbnail
*/
function serendipity_makeThumbnail($file, $directory = '', $size = false, $thumbname = false, $is_temporary = false, $force_resize = false) {
global $serendipity;
if ($size === false) {
$size = $serendipity['thumbSize'];
}
if ($size < 1) {
return array(0,0);
}
if ($thumbname === false) {
$thumbname = $serendipity['thumbSuffix'];
}
$t = serendipity_parseFileName($file);
$f = $t[0];
$suf = $t[1];
$infile = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $directory . $file;
#echo 'From: ' . $infile . '<br />';
if ($is_temporary) {
$temppath = dirname($thumbname);
if (!is_dir($temppath)) {
@mkdir($temppath);
}
$outfile = $thumbname;
} else {
$outfile = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $directory . $f . '.' . $thumbname . '.' . $suf;
}
$serendipity['last_outfile'] = $outfile;
#echo 'To: ' . $outfile . '<br />';
$fdim = @serendipity_getimagesize($infile, '', $suf);
if (isset($fdim['noimage'])) {
$r = array(0, 0);
} else {
if ($serendipity['magick'] !== true) {
if (is_array($size)) {
// The caller wants a thumbnail with a specific size
$r = serendipity_resize_image_gd($infile, $outfile, $size['width'], $size['height']);
} else {
// The caller wants a thumbnail constrained in the dimension set by config
$calc = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $size, $serendipity['thumbConstraint']);
$r = serendipity_resize_image_gd($infile, $outfile, $calc[0], $calc[1]);
}
} else {
if (is_array($size)) {
if ($fdim[0] > $size['width'] && $fdim[1] > $size['height']) {
$r = $size;
} else {
return array(0,0); // do not create any thumb, if image is smaller than defined sizes
}
} else {
$calc = serendipity_calculate_aspect_size($fdim[0], $fdim[1], $size, $serendipity['thumbConstraint']);
$r = array('width' => $calc[0], 'height' => $calc[1]);
}
$newSize = $r['width'] . 'x' . $r['height'];
if ($fdim['mime'] == 'application/pdf') {
$cmd = escapeshellcmd($serendipity['convert']) . ' -antialias -flatten -scale '. serendipity_escapeshellarg($newSize) .' '. serendipity_escapeshellarg($infile . '[0]') . ' ' . serendipity_escapeshellarg($outfile . '.png');
} else {
if (!$force_resize && serendipity_ini_bool(ini_get('safe_mode')) === false) {
$newSize .= '>'; // tell imagemagick to not enlarge small images, only works if safe_mode is off (safe_mode turns > in to \>)
}
if (!$serendipity['imagemagick_nobang']) $newSize .= '!'; // force the first run image geometry exactly to given sizes, if there were rounding differences (see https://github.com/s9y/Serendipity/commit/94881ba4c0e3bdd4b5fac510e93977e239171c1c and comments)
$params = '-sampling-factor 4:2:0 -unsharp 0x0.75+0.75+0.008 -strip -quality 85';
if (is_string($serendipity['imagemagick_thumb_parameters'])) {
// In s9y < 2.6, $serendipity['imagemagick_thumb_parameters'] was a string and the default
// value targeted jpgs. Users might have set variants of that in their local config, so
// we provide a backwards compatibly path here
$params = $serendipity['imagemagick_thumb_parameters'];
} else {
// In 2.6 $serendipity['imagemagick_thumb_parameters'] has values for different
// image formats
if (isset($serendipity['imagemagick_thumb_parameters'][$fdim['mime']])) {
$params = $serendipity['imagemagick_thumb_parameters'][$fdim['mime']];
}
}
$cmd = escapeshellcmd($serendipity['convert'] . ' ' . $params) . ' -antialias -resize ' . serendipity_escapeshellarg($newSize) . ' ' . serendipity_escapeshellarg($infile) .' '. serendipity_escapeshellarg($outfile);
}
exec($cmd, $output, $result);
if ($result != 0) {
echo '<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . sprintf(IMAGICK_EXEC_ERROR, $cmd, $output[0], $result) ."</span>\n";
$r = false; // return failure
} else {
touch($outfile);
}
unset($output, $result);
}
}
return $r;
}
/**
* Scale an image
*
* LONG
*
* @access public
* @param int The ID of an image
* @param int The target width
* @param int The target height
* @return true
*/
function serendipity_scaleImg($id, $width, $height) {
global $serendipity;
$file = serendipity_fetchImageFromDatabase($id);
if (!is_array($file)) {
return false;
}
$admin = '';
if (!serendipity_checkPermission('adminImagesMaintainOthers') && $file['authorid'] != '0' && $file['authorid'] != $serendipity['authorid']) {
return;
}
$infile = $outfile = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $file['path'] . $file['name'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
if ($serendipity['magick'] !== true) {
serendipity_resize_image_gd($infile, $outfile, $width, $height);
} else {
$cmd = escapeshellcmd($serendipity['convert']) . ' -scale ' . serendipity_escapeshellarg($width . 'x' . $height) . ' ' . serendipity_escapeshellarg($infile) . ' ' . serendipity_escapeshellarg($outfile);
exec($cmd, $output, $result);
if ( $result != 0 ) {
echo '<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . sprintf(IMAGICK_EXEC_ERROR, $cmd, $output[0], $result) ."</span>\n";
return false;
}
unset($output, $result);
}
if ($result == 0) {
serendipity_updateImageInDatabase(array('dimensions_width' => $width, 'dimensions_height' => $height, 'size' => @filesize($outfile)), $id);
return true;
}
return false;
}
/**
* Rotate an image
*
* LONG
*
* @access public
* @param int The ID of an image
* @param int Number of degrees to rotate
* @return boolean
*/
function serendipity_rotateImg($id, $degrees) {
global $serendipity;
$file = serendipity_fetchImageFromDatabase($id);
if (!is_array($file)) {
return false;
}
$admin = '';
if (!serendipity_checkPermission('adminImagesMaintainOthers') && $file['authorid'] != '0' && $file['authorid'] != $serendipity['authorid']) {
// A non-admin user may not delete private files from other users.
return false;
}
$infile = $outfile = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $file['path'] . $file['name'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
$thumbnails = serendipity_getThumbnails($id);
if ($serendipity['magick'] !== true) {
serendipity_rotate_image_gd($infile, $outfile, $degrees);
foreach($thumbnails as $thumbnail) {
$infileThumb = $outfileThumb = $thumbnail;
serendipity_rotate_image_gd($infileThumb, $outfileThumb, $degrees);
}
} else {
/* Why can't we just all agree on the rotation direction? */
$degrees = (360 - $degrees);
/* rotate main image */
$cmd = escapeshellcmd($serendipity['convert']) . ' -rotate ' . serendipity_escapeshellarg($degrees) . ' ' . serendipity_escapeshellarg($infile) . ' ' . serendipity_escapeshellarg($outfile);
exec($cmd, $output, $result);
if ( $result != 0 ) {
echo '<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . sprintf(IMAGICK_EXEC_ERROR, $cmd, $output[0], $result) ."</span>\n";
}
unset($output, $result);
/* rotate thumbnail */
foreach($thumbnails as $thumbnail) {
$infileThumb = $outfileThumb = $thumbnail;
$cmd = escapeshellcmd($serendipity['convert']) . ' -rotate ' . serendipity_escapeshellarg($degrees) . ' ' . serendipity_escapeshellarg($infileThumb) . ' ' . serendipity_escapeshellarg($outfileThumb);
exec($cmd, $output, $result);
if ( $result != 0 ) {
echo '<span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . sprintf(IMAGICK_EXEC_ERROR, $cmd, $output[0], $result) ."</span>\n";
}
unset($output, $result);
}
}
$fdim = @getimagesize($outfile);
serendipity_updateImageInDatabase(array('dimensions_width' => $fdim[0], 'dimensions_height' => $fdim[1]), $id);
return true;
}
/**
* Creates thumbnails for all images in the upload dir
*
* @access public
* @return int Number of created thumbnails
*/
function serendipity_generateThumbs() {
global $serendipity;
$i = 0;
$serendipity['imageList'] = serendipity_fetchImagesFromDatabase(0, 0, $total);
$msg_printed = false;
foreach ($serendipity['imageList'] AS $k => $file) {
serendipity_prepareMedia($file);
$is_image = serendipity_isImage($file);
if ($is_image && !$file['hotlink']) {
$update = false;
$filename = $file['path'] . $file['name'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
$ffull = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $filename;
if (!file_exists($ffull)) {
serendipity_deleteImage($file['id']);
continue;
}
if (empty($file['thumbnail_name'])) {
$file['thumbnail_name'] = $serendipity['thumbSuffix'];
}
$oldThumb = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $file['path'] . $file['name'] . '.' . $file['thumbnail_name'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
$newThumb = $serendipity['serendipityPath'] . $serendipity['uploadPath'] . $file['path'] . $file['name'] . '.' . $serendipity['thumbSuffix'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
$sThumb = $file['path'] . $file['name'] . '.' . $serendipity['thumbSuffix'] . (empty($file['extension']) ? '' : '.' . $file['extension']);
$fdim = @getimagesize($ffull);
if (!file_exists($oldThumb) && !file_exists($newThumb) && ($fdim[0] > $serendipity['thumbSize'] || $fdim[1] > $serendipity['thumbSize'])) {
$returnsize = serendipity_makeThumbnail($file['name'] . (empty($file['extension']) ? '' : '.' . $file['extension']), $file['path']);
if ($returnsize !== false ) {
// Only print the resize message the first time
if (!$msg_printed) {
$resizemedia = sprintf(RESIZE_BLAHBLAH, THUMBNAIL_SHORT);
printf('<span class="msg_notice"><span class="icon-info-circled" aria-hidden="true"></span> ' . $resizemedia . "</span>\n");
echo "\n" . '<ul class="serendipityFileList">' . "\n";
$msg_printed = true;
}
echo '<li>' . $sThumb . ': ' . $returnsize[0] . 'x' . $returnsize[1] . "</li>\n";
if (!file_exists($newThumb)) {
printf('<li><span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . THUMBNAIL_FAILED_COPY . '</span></li>' . "\n", $sThumb);
} else {
$update = true;
}
}
} elseif (!file_exists($oldThumb) && !file_exists($newThumb) && $fdim[0] <= $serendipity['thumbSize'] && $fdim[1] <= $serendipity['thumbSize']) {
if (!$msg_printed) {
$resizethumb = sprintf(RESIZE_BLAHBLAH, $sThumb);
printf('<span class="msg_notice"><span class="icon-info-circled" aria-hidden="true"></span> ' . $resizethumb . "</span>\n");
echo "\n" . '<ul class="serendipityFileList">' . "\n";
$msg_printed = true;
}
$res = @copy($ffull, $newThumb);
if (@$res === true) {
printf('<li>' . THUMBNAIL_USING_OWN . '</li>' . "\n", $sThumb);
$update = true;
} else {
printf('<li><span class="msg_error"><span class="icon-attention-circled" aria-hidden="true"></span> ' . THUMBNAIL_FAILED_COPY . '</span></li>' . "\n", $sThumb);
}
}
if ($update) {
$i++;
$updates = array('thumbnail_name' => $serendipity['thumbSuffix']);
serendipity_updateImageInDatabase($updates, $file['id']);
}
} else {
// Currently, non-image files have no thumbnail.
}
}
// Close the list, if it was created
if ($msg_printed) {
echo "</ul>\n";
}
return $i;
}
/**
* Guess the MIME type of a file
*
* @access public
* @param string Filename extension
* @return string Mimetype
*/
function serendipity_guessMime($extension) {
$mime = '';
switch (strtolower($extension)) {
case 'jpg':
case 'jpeg':
$mime = 'image/jpeg';
break;
case 'aiff':
case 'aif':
$mime = 'audio/x-aiff';
break;
case 'gif':
$mime = 'image/gif';
break;
case 'png':
$mime = 'image/png';
break;
case 'pdf':
$mime = 'application/pdf';
break;
case 'doc':
$mime = 'application/msword';
break;