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phpthumb.class.php
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<?php
//////////////////////////////////////////////////////////////
// phpThumb() by James Heinrich <[email protected]> //
// available at http://phpthumb.sourceforge.net //
// and/or https://github.com/JamesHeinrich/phpThumb //
//////////////////////////////////////////////////////////////
/// //
// See: phpthumb.readme.txt for usage instructions //
// ///
//////////////////////////////////////////////////////////////
if (!class_exists('phpthumb_functions', false)) {
ob_start();
if (!include_once __DIR__ . '/phpthumb.functions.php') {
ob_end_flush();
die('failed to include_once("' . __DIR__ . '/phpthumb.functions.php")');
}
ob_end_clean();
}
// make sure all image type constants are defined, even in older PHP versions that don't natively support them
$predefined_IMG_constants = array(
'IMG_GIF' => 1,
'IMG_JPG' => 2, // not a typo, both IMG_JPG and IMG_JPEG have a value of "2"
'IMG_JPEG' => 2, // not a typo, both IMG_JPG and IMG_JPEG have a value of "2"
'IMG_PNG' => 4,
'IMG_WBMP' => 8,
'IMG_XPM' => 16,
'IMG_WEBP' => 32, // PHP 7.0.10
'IMG_BMP' => 64, // PHP 7.2.0
'IMG_WEBP_LOSSLESS' => 101, // PHP 8.1.0
'IMG_AVIF' => 256, // PHP 8.1.0
);
$predefined_IMAGETYPE_constants = array(
'IMAGETYPE_GIF' => 1,
'IMAGETYPE_JPEG' => 2,
'IMAGETYPE_PNG' => 3,
'IMAGETYPE_SWF' => 4,
'IMAGETYPE_PSD' => 5,
'IMAGETYPE_BMP' => 6,
'IMAGETYPE_TIFF_II' => 7,
'IMAGETYPE_TIFF_MM' => 8,
'IMAGETYPE_JPC' => 9,
'IMAGETYPE_JP2' => 10,
'IMAGETYPE_JPX' => 11,
'IMAGETYPE_JB2' => 12,
'IMAGETYPE_SWC' => 13,
'IMAGETYPE_IFF' => 14,
'IMAGETYPE_WBMP' => 15,
'IMAGETYPE_XBM' => 16,
'IMAGETYPE_ICO' => 17,
'IMAGETYPE_WEBP' => 18, // PHP 7.0.10
'IMAGETYPE_AVIF' => 19, // PHP 8.1.0
);
foreach ($predefined_IMG_constants as $PHP_constant_name => $PHP_constant_value) {
if (!defined($PHP_constant_name)) {
define($PHP_constant_name, $PHP_constant_value);
}
}
foreach ($predefined_IMAGETYPE_constants as $PHP_constant_name => $PHP_constant_value) {
if (!defined($PHP_constant_name)) {
define($PHP_constant_name, $PHP_constant_value);
}
}
unset($predefined_IMG_constants, $predefined_IMAGETYPE_constants, $PHP_constant_name, $PHP_constant_value);
class phpthumb {
// public:
// START PARAMETERS (for object mode and phpThumb.php)
// See phpthumb.readme.txt for descriptions of what each of these values are
public $src = null; // SouRCe filename
public $new = null; // NEW image (phpThumb.php only)
public $w = null; // Width
public $h = null; // Height
public $wp = null; // Width (Portrait Images Only)
public $hp = null; // Height (Portrait Images Only)
public $wl = null; // Width (Landscape Images Only)
public $hl = null; // Height (Landscape Images Only)
public $ws = null; // Width (Square Images Only)
public $hs = null; // Height (Square Images Only)
public $f = null; // output image Format
public $q = -1; // jpeg output Quality
public $sx = null; // Source crop top-left X position
public $sy = null; // Source crop top-left Y position
public $sw = null; // Source crop Width
public $sh = null; // Source crop Height
public $zc = null; // Zoom Crop
public $ica = null; // Image Crop Auto
public $bc = null; // Border Color
public $bg = null; // BackGround color
public $fltr = array(); // FiLTeRs
public $goto = null; // GO TO url after processing
public $err = null; // default ERRor image filename
public $xto = null; // extract eXif Thumbnail Only
public $ra = null; // Rotate by Angle
public $ar = null; // Auto Rotate
public $aoe = null; // Allow Output Enlargement
public $far = null; // Fixed Aspect Ratio
public $iar = null; // Ignore Aspect Ratio
public $maxb = null; // MAXimum Bytes
public $down = null; // DOWNload thumbnail filename
public $md5s = null; // MD5 hash of Source image
public $sfn = 0; // Source Frame Number
public $dpi = 150; // Dots Per Inch for vector source formats
public $sia = null; // Save Image As filename
public $file = null; // >>>deprecated, DO NOT USE, will be removed in future versions<<<
public $phpThumbDebug = null;
// END PARAMETERS
// public:
// START CONFIGURATION OPTIONS (for object mode only)
// See phpThumb.config.php for descriptions of what each of these settings do
// * Directory Configuration
public $config_cache_directory = null;
public $config_cache_directory_depth = 0;
public $config_cache_disable_warning = true;
public $config_cache_source_enabled = false;
public $config_cache_source_directory = null;
public $config_temp_directory = null;
public $config_document_root = null;
// * Default output configuration:
public $config_output_format = 'jpeg';
public $config_output_maxwidth = 0;
public $config_output_maxheight = 0;
public $config_output_interlace = true;
// * Error message configuration
public $config_error_image_width = 400;
public $config_error_image_height = 100;
public $config_error_message_image_default = '';
public $config_error_bgcolor = 'CCCCFF';
public $config_error_textcolor = 'FF0000';
public $config_error_fontsize = 1;
public $config_error_die_on_error = false;
public $config_error_silent_die_on_error = false;
public $config_error_die_on_source_failure = true;
// * Anti-Hotlink Configuration:
public $config_nohotlink_enabled = true;
public $config_nohotlink_valid_domains = array();
public $config_nohotlink_erase_image = true;
public $config_nohotlink_text_message = 'Off-server thumbnailing is not allowed';
// * Off-server Linking Configuration:
public $config_nooffsitelink_enabled = false;
public $config_nooffsitelink_valid_domains = array();
public $config_nooffsitelink_require_refer = false;
public $config_nooffsitelink_erase_image = true;
public $config_nooffsitelink_watermark_src = '';
public $config_nooffsitelink_text_message = 'Off-server linking is not allowed';
// * Border & Background default colors
public $config_border_hexcolor = '000000';
public $config_background_hexcolor = 'FFFFFF';
// * TrueType Fonts
public $config_ttf_directory = './fonts';
public $config_max_source_pixels = null;
public $config_use_exif_thumbnail_for_speed = false;
public $config_allow_local_http_src = false;
public $config_imagemagick_path = null;
public $config_prefer_imagemagick = true;
public $config_imagemagick_use_thumbnail = true;
public $config_cache_maxage = null;
public $config_cache_maxsize = null;
public $config_cache_maxfiles = null;
public $config_cache_source_filemtime_ignore_local = false;
public $config_cache_source_filemtime_ignore_remote = true;
public $config_cache_default_only_suffix = false;
public $config_cache_force_passthru = true;
public $config_cache_prefix = ''; // default value set in the constructor below
// * MySQL
public $config_mysql_extension = null;
public $config_mysql_query = null;
public $config_mysql_hostname = null;
public $config_mysql_username = null;
public $config_mysql_password = null;
public $config_mysql_database = null;
// * Security
public $config_high_security_enabled = true;
public $config_high_security_password = null;
public $config_high_security_url_separator = '&';
public $config_disable_debug = true;
public $config_allow_src_above_docroot = false;
public $config_allow_src_above_phpthumb = true;
public $config_auto_allow_symlinks = true; // allow symlink target directories without explicitly whitelisting them
public $config_additional_allowed_dirs = array(); // additional directories to allow source images to be read from
public $config_file_create_mask = 0755;
public $config_dir_create_mask = 0755;
// * HTTP fopen
public $config_http_fopen_timeout = 10;
public $config_http_follow_redirect = true;
// * Compatability
public $config_disable_pathinfo_parsing = false;
public $config_disable_imagecopyresampled = false;
public $config_disable_onlycreateable_passthru = false;
public $config_disable_realpath = false;
public $config_http_user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7';
// END CONFIGURATION OPTIONS
// public: error messages (read-only; persistant)
public $debugmessages = array();
public $debugtiming = array();
public $fatalerror = null;
// private: (should not be modified directly)
public $thumbnailQuality = -1;
public $thumbnailFormat = null;
public $sourceFilename = null;
public $rawImageData = null;
public $IMresizedData = null;
public $outputImageData = null;
public $useRawIMoutput = false;
public $gdimg_output = null;
public $gdimg_source = null;
public $getimagesizeinfo = null;
public $source_width = null;
public $source_height = null;
public $thumbnailCropX = null;
public $thumbnailCropY = null;
public $thumbnailCropW = null;
public $thumbnailCropH = null;
public $exif_thumbnail_width = null;
public $exif_thumbnail_height = null;
public $exif_thumbnail_type = null;
public $exif_thumbnail_data = null;
public $exif_raw_data = null;
public $thumbnail_width = null;
public $thumbnail_height = null;
public $thumbnail_image_width = null;
public $thumbnail_image_height = null;
public $tempFilesToDelete = array();
public $cache_filename = null;
public $AlphaCapableFormats = array( 'png', 'ico', 'gif', 'webp', 'avif');
public $is_alpha = false;
public $iswindows = null;
public $issafemode = null;
public $php_memory_limit = null;
public $phpthumb_version = '1.7.22-202408102120';
//////////////////////////////////////////////////////////////////////
// public: constructor
public function __construct() {
$this->phpThumb();
}
public function phpThumb() {
$this->DebugTimingMessage('phpThumb() constructor', __FILE__, __LINE__);
$this->DebugMessage('phpThumb() v'.$this->phpthumb_version, __FILE__, __LINE__);
foreach (array(ini_get('memory_limit'), get_cfg_var('memory_limit')) as $php_config_memory_limit) {
if (!empty($php_config_memory_limit)) {
if (strtoupper($php_config_memory_limit[ strlen($php_config_memory_limit) - 1 ]) == 'G') { // PHP memory limit expressed in Gigabytes
$php_config_memory_limit = (int) substr($php_config_memory_limit, 0, -1) * 1073741824;
} elseif (strtoupper($php_config_memory_limit[ strlen($php_config_memory_limit) - 1 ]) == 'M') { // PHP memory limit expressed in Megabytes
$php_config_memory_limit = (int) substr($php_config_memory_limit, 0, -1) * 1048576;
}
$this->php_memory_limit = max($this->php_memory_limit, $php_config_memory_limit);
}
}
if ($this->php_memory_limit > 0) { // could be "-1" for "no limit"
$this->config_max_source_pixels = round($this->php_memory_limit * 0.20); // 20% of memory_limit
}
$this->iswindows = (bool) (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN');
$this->issafemode = (bool) preg_match('#(1|ON)#i', ini_get('safe_mode'));
$this->config_document_root = (!empty($_SERVER['DOCUMENT_ROOT']) ? $_SERVER['DOCUMENT_ROOT'] : $this->config_document_root);
$this->config_cache_prefix = ( isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'].'_' : '');
$this->purgeTempFiles(); // purge existing temp files if re-initializing object
$php_sapi_name = strtolower(function_exists('php_sapi_name') ? PHP_SAPI : '');
if ($php_sapi_name == 'cli') {
$this->config_allow_src_above_docroot = true;
}
if (!$this->config_disable_debug) {
// if debug mode is enabled, force phpThumbDebug output, do not allow normal thumbnails to be generated
$this->phpThumbDebug = (null === $this->phpThumbDebug ? 9 : max(1, (int) $this->phpThumbDebug));
}
}
public function __destruct() {
$this->purgeTempFiles();
}
public function __set(string $name, $value): void {
}
// public:
public function purgeTempFiles() {
foreach ($this->tempFilesToDelete as $tempFileToDelete) {
if ((strpos(basename($tempFileToDelete), 'pThumb') === 0) && file_exists($tempFileToDelete)) {
$this->DebugMessage('Deleting temp file "'.$tempFileToDelete.'"', __FILE__, __LINE__);
@unlink($tempFileToDelete);
}
}
$this->tempFilesToDelete = array();
return true;
}
// public:
public function setSourceFilename($sourceFilename) {
//$this->resetObject();
//$this->rawImageData = null;
$this->sourceFilename = $sourceFilename;
$this->src = $sourceFilename;
if (null === $this->config_output_format) {
$sourceFileExtension = strtolower(substr(strrchr($sourceFilename, '.'), 1));
if (preg_match('#^[a-z]{3,4}$#', $sourceFileExtension)) {
$this->config_output_format = $sourceFileExtension;
$this->DebugMessage('setSourceFilename('.$sourceFilename.') set $this->config_output_format to "'.$sourceFileExtension.'"', __FILE__, __LINE__);
} else {
$this->DebugMessage('setSourceFilename('.$sourceFilename.') did NOT set $this->config_output_format to "'.$sourceFileExtension.'" because it did not seem like an appropriate image format', __FILE__, __LINE__);
}
}
$this->DebugMessage('setSourceFilename('.$sourceFilename.') set $this->sourceFilename to "'.$this->sourceFilename.'"', __FILE__, __LINE__);
return true;
}
// public:
public function setSourceData($rawImageData, $sourceFilename='') {
//$this->resetObject();
//$this->sourceFilename = null;
$this->rawImageData = $rawImageData;
$this->DebugMessage('setSourceData() setting $this->rawImageData ('.strlen($this->rawImageData).' bytes; magic="'.substr($this->rawImageData, 0, 4).'" ('.phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)).'))', __FILE__, __LINE__);
if ($this->config_cache_source_enabled) {
$sourceFilename = ($sourceFilename ? $sourceFilename : md5($rawImageData));
if (!is_dir($this->config_cache_source_directory)) {
$this->ErrorImage('$this->config_cache_source_directory ('.$this->config_cache_source_directory.') is not a directory');
} elseif (!@is_writable($this->config_cache_source_directory)) {
$this->ErrorImage('$this->config_cache_source_directory ('.$this->config_cache_source_directory.') is not writable');
}
$this->DebugMessage('setSourceData() attempting to save source image to "'.$this->config_cache_source_directory.DIRECTORY_SEPARATOR.urlencode($sourceFilename).'"', __FILE__, __LINE__);
if ($fp = @fopen($this->config_cache_source_directory.DIRECTORY_SEPARATOR.urlencode($sourceFilename), 'wb')) {
fwrite($fp, $rawImageData);
fclose($fp);
} elseif (!$this->phpThumbDebug) {
$this->ErrorImage('setSourceData() failed to write to source cache ('.$this->config_cache_source_directory.DIRECTORY_SEPARATOR.urlencode($sourceFilename).')');
}
}
return true;
}
// public:
public function setSourceImageResource($gdimg) {
//$this->resetObject();
$this->gdimg_source = $gdimg;
return true;
}
// public:
public function setParameter($param, $value) {
if ($param == 'src') {
$this->setSourceFilename($this->ResolveFilenameToAbsolute($value));
} elseif (isset($this->$param) && is_array($this->$param)) {
if (is_array($value)) {
foreach ($value as $arraykey => $arrayvalue) {
array_push($this->$param, $arrayvalue);
}
} else {
array_push($this->$param, $value);
}
} else {
$this->$param = $value;
}
return true;
}
// public:
public function getParameter($param) {
//if (property_exists('phpThumb', $param)) {
return $this->$param;
//}
//$this->DebugMessage('setParameter() attempting to get non-existant parameter "'.$param.'"', __FILE__, __LINE__);
//return false;
}
// public:
public function GenerateThumbnail() {
$this->setOutputFormat();
$this->phpThumbDebug('8a');
$this->ResolveSource();
$this->phpThumbDebug('8b');
$this->SetCacheFilename();
$this->phpThumbDebug('8c');
$this->ExtractEXIFgetImageSize();
$this->phpThumbDebug('8d');
if ($this->useRawIMoutput) {
$this->DebugMessage('Skipping rest of GenerateThumbnail() because ($this->useRawIMoutput == true)', __FILE__, __LINE__);
return true;
}
$this->phpThumbDebug('8e');
if (!$this->SourceImageToGD()) {
$this->DebugMessage('SourceImageToGD() failed', __FILE__, __LINE__);
return false;
}
$this->phpThumbDebug('8f');
$this->ImageCropAuto();
$this->phpThumbDebug('8h');
$this->Rotate();
$this->phpThumbDebug('8h');
$this->CreateGDoutput();
$this->phpThumbDebug('8i');
// default values, also applicable for far="C"
$destination_offset_x = round(($this->thumbnail_width - $this->thumbnail_image_width) / 2);
$destination_offset_y = round(($this->thumbnail_height - $this->thumbnail_image_height) / 2);
if (($this->far == 'L') || ($this->far == 'TL') || ($this->far == 'BL')) {
$destination_offset_x = 0;
}
if (($this->far == 'R') || ($this->far == 'TR') || ($this->far == 'BR')) {
$destination_offset_x = round($this->thumbnail_width - $this->thumbnail_image_width);
}
if (($this->far == 'T') || ($this->far == 'TL') || ($this->far == 'TR')) {
$destination_offset_y = 0;
}
if (($this->far == 'B') || ($this->far == 'BL') || ($this->far == 'BR')) {
$destination_offset_y = round($this->thumbnail_height - $this->thumbnail_image_height);
}
// // copy/resize image to appropriate dimensions
// $borderThickness = 0;
// if (!empty($this->fltr)) {
// foreach ($this->fltr as $key => $value) {
// if (preg_match('#^bord\|([0-9]+)#', $value, $matches)) {
// $borderThickness = $matches[1];
// break;
// }
// }
// }
// if ($borderThickness > 0) {
// //$this->DebugMessage('Skipping ImageResizeFunction() because BorderThickness="'.$borderThickness.'"', __FILE__, __LINE__);
// $this->thumbnail_image_height /= 2;
// }
$this->ImageResizeFunction(
$this->gdimg_output,
$this->gdimg_source,
$destination_offset_x,
$destination_offset_y,
$this->thumbnailCropX,
$this->thumbnailCropY,
$this->thumbnail_image_width,
$this->thumbnail_image_height,
$this->thumbnailCropW,
$this->thumbnailCropH
);
$this->DebugMessage('memory_get_usage() after copy-resize = '.(function_exists('memory_get_usage') ? @memory_get_usage() : 'n/a'), __FILE__, __LINE__);
imagedestroy($this->gdimg_source);
$this->DebugMessage('memory_get_usage() after imagedestroy = '.(function_exists('memory_get_usage') ? @memory_get_usage() : 'n/a'), __FILE__, __LINE__);
$this->phpThumbDebug('8i');
$this->AntiOffsiteLinking();
$this->phpThumbDebug('8j');
$this->ApplyFilters();
$this->phpThumbDebug('8k');
$this->AlphaChannelFlatten();
$this->phpThumbDebug('8l');
$this->MaxFileSize();
$this->phpThumbDebug('8m');
$this->DebugMessage('GenerateThumbnail() completed successfully', __FILE__, __LINE__);
return true;
}
// public:
public function RenderOutput() {
if (!$this->useRawIMoutput && !(is_resource($this->gdimg_output) || (is_object($this->gdimg_source) && $this->gdimg_source instanceOf \GdImage))) {
$this->DebugMessage('RenderOutput() failed because !is_resource($this->gdimg_output)', __FILE__, __LINE__);
return false;
}
if (!$this->thumbnailFormat) {
$this->DebugMessage('RenderOutput() failed because $this->thumbnailFormat is empty', __FILE__, __LINE__);
return false;
}
if ($this->useRawIMoutput) {
$this->DebugMessage('RenderOutput copying $this->IMresizedData ('.strlen($this->IMresizedData).' bytes) to $this->outputImage', __FILE__, __LINE__);
$this->outputImageData = $this->IMresizedData;
return true;
}
$builtin_formats = array();
if (function_exists('imagetypes')) {
$imagetypes = imagetypes();
$builtin_formats['wbmp'] = (bool) ($imagetypes & IMG_WBMP);
$builtin_formats['jpg'] = (bool) ($imagetypes & IMG_JPG);
$builtin_formats['gif'] = (bool) ($imagetypes & IMG_GIF);
$builtin_formats['png'] = (bool) ($imagetypes & IMG_PNG);
$builtin_formats['webp'] = (bool) ($imagetypes & IMG_WEBP); // PHP 7.0.10
$builtin_formats['bmp'] = (bool) ($imagetypes & IMG_BMP); // PHP 7.2.0
$builtin_formats['avif'] = (bool) ($imagetypes & IMG_AVIF); // PHP 8.1.0
}
$this->DebugMessage('imageinterlace($this->gdimg_output, '. (int) $this->config_output_interlace .')', __FILE__, __LINE__);
imageinterlace($this->gdimg_output, (int) $this->config_output_interlace);
$this->DebugMessage('RenderOutput() attempting image'.strtolower(@$this->thumbnailFormat).'($this->gdimg_output)', __FILE__, __LINE__);
ob_start();
switch ($this->thumbnailFormat) {
case 'wbmp':
if (empty($builtin_formats['wbmp'])) {
$this->DebugMessage('GD does not have required built-in support for WBMP output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
imagewbmp($this->gdimg_output, null, $this->thumbnailQuality);
$this->outputImageData = ob_get_contents();
break;
case 'jpeg':
case 'jpg': // should be "jpeg" not "jpg" but just in case...
if (empty($builtin_formats['jpg'])) {
$this->DebugMessage('GD does not have required built-in support for JPEG output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
imagejpeg($this->gdimg_output, null, $this->thumbnailQuality);
$this->outputImageData = ob_get_contents();
break;
case 'png':
if (empty($builtin_formats['png'])) {
$this->DebugMessage('GD does not have required built-in support for PNG output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
if (phpthumb_functions::version_compare_replacement(PHP_VERSION, '5.1.2', '>=')) {
// https://github.com/JamesHeinrich/phpThumb/issues/24
/* http://php.net/manual/en/function.imagepng.php:
from php source (gd.h):
2.0.12: Compression level: 0-9 or -1, where 0 is NO COMPRESSION at all,
:: 1 is FASTEST but produces larger files, 9 provides the best
:: compression (smallest files) but takes a long time to compress, and
:: -1 selects the default compiled into the zlib library.
Conclusion: Based on the Zlib manual (http://www.zlib.net/manual.html) the default compression level is set to 6.
*/
if (($this->thumbnailQuality >= -1) && ($this->thumbnailQuality <= 9)) {
$PNGquality = $this->thumbnailQuality;
} else {
$this->DebugMessage('Specified thumbnailQuality "'.$this->thumbnailQuality.'" is outside the accepted range (0-9, or -1). Using -1 as default value.', __FILE__, __LINE__);
$PNGquality = -1;
}
imagepng($this->gdimg_output, null, $PNGquality);
} else {
imagepng($this->gdimg_output);
}
$this->outputImageData = ob_get_contents();
break;
case 'gif':
if (empty($builtin_formats['gif'])) {
$this->DebugMessage('GD does not have required built-in support for GIF output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
imagegif($this->gdimg_output);
$this->outputImageData = ob_get_contents();
break;
case 'webp':
if (empty($builtin_formats['webp'])) {
$this->DebugMessage('GD does not have required built-in support for WebP output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
imagewebp($this->gdimg_output, null, $this->thumbnailQuality);
$this->outputImageData = ob_get_contents();
break;
case 'avif':
if (empty($builtin_formats['avif'])) {
$this->DebugMessage('GD does not have required built-in support for AVIF output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
imageavif($this->gdimg_output, null, $this->thumbnailQuality);
$this->outputImageData = ob_get_contents();
break;
case 'bmp':
if (!empty($builtin_formats['bmp'])) {
imagebmp($this->gdimg_output);
$this->outputImageData = ob_get_contents();
break;
}
$this->DebugMessage('GD does not have required built-in support for BMP output', __FILE__, __LINE__);
if (!@include_once __DIR__ .'/phpthumb.bmp.php' ) {
$this->DebugMessage('Error including "'. __DIR__ .'/phpthumb.bmp.php" which is required for BMP format output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
$phpthumb_bmp = new phpthumb_bmp();
$this->outputImageData = $phpthumb_bmp->GD2BMPstring($this->gdimg_output);
unset($phpthumb_bmp);
break;
case 'ico':
if (!@include_once __DIR__ .'/phpthumb.ico.php' ) {
$this->DebugMessage('Error including "'. __DIR__ .'/phpthumb.ico.php" which is required for ICO format output', __FILE__, __LINE__);
ob_end_clean();
return false;
}
$phpthumb_ico = new phpthumb_ico();
$arrayOfOutputImages = array($this->gdimg_output);
$this->outputImageData = $phpthumb_ico->GD2ICOstring($arrayOfOutputImages);
unset($phpthumb_ico);
break;
default:
$this->DebugMessage('RenderOutput failed because $this->thumbnailFormat "'.$this->thumbnailFormat.'" is not valid', __FILE__, __LINE__);
ob_end_clean();
return false;
}
ob_end_clean();
if (!$this->outputImageData) {
$this->DebugMessage('RenderOutput() for "'.$this->thumbnailFormat.'" failed', __FILE__, __LINE__);
ob_end_clean();
return false;
}
$this->DebugMessage('RenderOutput() completing with $this->outputImageData = '.strlen($this->outputImageData).' bytes', __FILE__, __LINE__);
return true;
}
// public:
public function RenderToFile($filename) {
if (preg_match('#^[a-z0-9]+://#i', $filename)) {
$this->DebugMessage('RenderToFile() failed because $filename ('.$filename.') is a URL', __FILE__, __LINE__);
return false;
}
// render thumbnail to this file only, do not cache, do not output to browser
//$renderfilename = $this->ResolveFilenameToAbsolute(dirname($filename)).DIRECTORY_SEPARATOR.basename($filename);
$renderfilename = $filename;
if (($filename[0] != '/') && ($filename[0] != '\\') && ($filename[1] != ':')) {
$renderfilename = $this->ResolveFilenameToAbsolute($renderfilename);
}
if (!@is_writable(dirname($renderfilename))) {
$this->DebugMessage('RenderToFile() failed because "'.dirname($renderfilename).'/" is not writable', __FILE__, __LINE__);
return false;
}
if (@is_file($renderfilename) && !@is_writable($renderfilename)) {
$this->DebugMessage('RenderToFile() failed because "'.$renderfilename.'" is not writable', __FILE__, __LINE__);
return false;
}
if ($this->RenderOutput()) {
if (file_put_contents($renderfilename, $this->outputImageData)) {
@chmod($renderfilename, $this->getParameter('config_file_create_mask'));
$this->DebugMessage('RenderToFile('.$renderfilename.') succeeded', __FILE__, __LINE__);
return true;
}
if (!@file_exists($renderfilename)) {
$this->DebugMessage('RenderOutput ['.$this->thumbnailFormat.'('.$renderfilename.')] did not appear to fail, but the output image does not exist either...', __FILE__, __LINE__);
}
} else {
$this->DebugMessage('RenderOutput ['.$this->thumbnailFormat.'('.$renderfilename.')] failed', __FILE__, __LINE__);
}
return false;
}
// public:
public function OutputThumbnail() {
$this->purgeTempFiles();
if (!$this->useRawIMoutput && !(is_resource($this->gdimg_output) || (is_object($this->gdimg_source) && $this->gdimg_source instanceOf \GdImage))) {
$this->DebugMessage('OutputThumbnail() failed because !is_resource($this->gdimg_output)', __FILE__, __LINE__);
return false;
}
if (headers_sent()) {
return $this->ErrorImage('OutputThumbnail() failed - headers already sent');
}
$downloadfilename = phpthumb_functions::SanitizeFilename(is_string($this->sia) ? $this->sia : ($this->down ? $this->down : 'phpThumb_generated_thumbnail'.'.'.$this->thumbnailFormat));
$this->DebugMessage('Content-Disposition header filename set to "'.$downloadfilename.'"', __FILE__, __LINE__);
if ($downloadfilename) {
header('Content-Disposition: '.($this->down ? 'attachment' : 'inline').'; filename="'.$downloadfilename.'"');
} else {
$this->DebugMessage('failed to send Content-Disposition header because $downloadfilename is empty', __FILE__, __LINE__);
}
if ($this->useRawIMoutput) {
header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
echo $this->IMresizedData;
} else {
$this->DebugMessage('imageinterlace($this->gdimg_output, '. (int) $this->config_output_interlace .')', __FILE__, __LINE__);
imageinterlace($this->gdimg_output, (int) $this->config_output_interlace);
switch ($this->thumbnailFormat) {
case 'gif':
case 'jpeg':
case 'png':
case 'webp':
case 'avif':
$ImageOutFunction = 'image'.$this->thumbnailFormat;
if (!function_exists($ImageOutFunction)) {
$this->DebugMessage($ImageOutFunction.' is not available', __FILE__, __LINE__);
return false;
}
header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
if ($this->thumbnailFormat == 'gif') {
@$ImageOutFunction($this->gdimg_output);
} else {
@$ImageOutFunction($this->gdimg_output, null, $this->thumbnailQuality);
}
break;
case 'bmp':
if (function_exists('imagebmp')) {
header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
imagebmp($this->gdimg_output);
break;
}
if (!@include_once __DIR__ .'/phpthumb.bmp.php' ) {
$this->DebugMessage('Error including "'. __DIR__ .'/phpthumb.bmp.php" which is required for BMP format output', __FILE__, __LINE__);
return false;
}
$phpthumb_bmp = new phpthumb_bmp();
if (is_object($phpthumb_bmp)) {
$bmp_data = $phpthumb_bmp->GD2BMPstring($this->gdimg_output);
unset($phpthumb_bmp);
if (!$bmp_data) {
$this->DebugMessage('$phpthumb_bmp->GD2BMPstring() failed', __FILE__, __LINE__);
return false;
}
header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
echo $bmp_data;
} else {
$this->DebugMessage('new phpthumb_bmp() failed', __FILE__, __LINE__);
return false;
}
break;
case 'ico':
if (!@include_once __DIR__ .'/phpthumb.ico.php' ) {
$this->DebugMessage('Error including "'. __DIR__ .'/phpthumb.ico.php" which is required for ICO format output', __FILE__, __LINE__);
return false;
}
$phpthumb_ico = new phpthumb_ico();
if (is_object($phpthumb_ico)) {
$arrayOfOutputImages = array($this->gdimg_output);
$ico_data = $phpthumb_ico->GD2ICOstring($arrayOfOutputImages);
unset($phpthumb_ico);
if (!$ico_data) {
$this->DebugMessage('$phpthumb_ico->GD2ICOstring() failed', __FILE__, __LINE__);
return false;
}
header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
echo $ico_data;
} else {
$this->DebugMessage('new phpthumb_ico() failed', __FILE__, __LINE__);
return false;
}
break;
default:
$this->DebugMessage('OutputThumbnail failed because $this->thumbnailFormat "'.$this->thumbnailFormat.'" is not valid', __FILE__, __LINE__);
return false;
break;
}
}
return true;
}
// public:
public function CleanUpCacheDirectory() {
$this->DebugMessage('CleanUpCacheDirectory() set to purge ('.(null === $this->config_cache_maxage ? 'NULL' : number_format($this->config_cache_maxage / 86400, 1)).' days; '.(null === $this->config_cache_maxsize ? 'NULL' : number_format($this->config_cache_maxsize / 1048576, 2)).' MB; '.(null === $this->config_cache_maxfiles ? 'NULL' : number_format($this->config_cache_maxfiles)).' files)', __FILE__, __LINE__);
if (!is_writable($this->config_cache_directory)) {
$this->DebugMessage('CleanUpCacheDirectory() skipped because "'.$this->config_cache_directory.'" is not writable', __FILE__, __LINE__);
return true;
}
// cache status of cache directory for 1 hour to avoid hammering the filesystem functions
$phpThumbCacheStats_filename = $this->config_cache_directory.DIRECTORY_SEPARATOR.'phpThumbCacheStats.txt';
if (file_exists($phpThumbCacheStats_filename) && is_readable($phpThumbCacheStats_filename) && (filemtime($phpThumbCacheStats_filename) >= (time() - 3600))) {
$this->DebugMessage('CleanUpCacheDirectory() skipped because "'.$phpThumbCacheStats_filename.'" is recently modified', __FILE__, __LINE__);
return true;
}
if (!@touch($phpThumbCacheStats_filename)) {
$this->DebugMessage('touch('.$phpThumbCacheStats_filename.') failed', __FILE__, __LINE__);
}
$DeletedKeys = array();
$AllFilesInCacheDirectory = array();
if (($this->config_cache_maxage > 0) || ($this->config_cache_maxsize > 0) || ($this->config_cache_maxfiles > 0)) {
$CacheDirOldFilesAge = array();
$CacheDirOldFilesSize = array();
$AllFilesInCacheDirectory = phpthumb_functions::GetAllFilesInSubfolders($this->config_cache_directory);
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (preg_match('#'.preg_quote($this->config_cache_prefix).'#i', $fullfilename) && file_exists($fullfilename)) {
$CacheDirOldFilesAge[$fullfilename] = @fileatime($fullfilename);
if ($CacheDirOldFilesAge[$fullfilename] == 0) {
$CacheDirOldFilesAge[$fullfilename] = @filemtime($fullfilename);
}
$CacheDirOldFilesSize[$fullfilename] = @filesize($fullfilename);
}
}
if (empty($CacheDirOldFilesSize)) {
$this->DebugMessage('CleanUpCacheDirectory() skipped because $CacheDirOldFilesSize is empty (phpthumb_functions::GetAllFilesInSubfolders('.$this->config_cache_directory.') found no files)', __FILE__, __LINE__);
return true;
}
$DeletedKeys['zerobyte'] = array();
foreach ($CacheDirOldFilesSize as $fullfilename => $filesize) {
// purge all zero-size files more than an hour old (to prevent trying to delete just-created and/or in-use files)
$cutofftime = time() - 3600;
if (($filesize == 0) && ($CacheDirOldFilesAge[$fullfilename] < $cutofftime)) {
$this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$DeletedKeys['zerobyte'][] = $fullfilename;
unset($CacheDirOldFilesSize[$fullfilename]);
unset($CacheDirOldFilesAge[$fullfilename]);
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['zerobyte']).' zero-byte files', __FILE__, __LINE__);
asort($CacheDirOldFilesAge);
if ($this->config_cache_maxfiles > 0) {
$TotalCachedFiles = count($CacheDirOldFilesAge);
$DeletedKeys['maxfiles'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFiles > $this->config_cache_maxfiles) {
$this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$TotalCachedFiles--;
$DeletedKeys['maxfiles'][] = $fullfilename;
}
} else {
// there are few enough files to keep the rest
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['maxfiles']).' files based on (config_cache_maxfiles='.$this->config_cache_maxfiles.')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxfiles'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxage > 0) {
$mindate = time() - $this->config_cache_maxage;
$DeletedKeys['maxage'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($filedate > 0) {
if ($filedate < $mindate) {
$this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$DeletedKeys['maxage'][] = $fullfilename;
}
} else {
// the rest of the files are new enough to keep
break;
}
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['maxage']).' files based on (config_cache_maxage='.$this->config_cache_maxage.')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxage'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
if ($this->config_cache_maxsize > 0) {
$TotalCachedFileSize = array_sum($CacheDirOldFilesSize);
$DeletedKeys['maxsize'] = array();
foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
if ($TotalCachedFileSize > $this->config_cache_maxsize) {
$this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
if (@unlink($fullfilename)) {
$TotalCachedFileSize -= $CacheDirOldFilesSize[$fullfilename];
$DeletedKeys['maxsize'][] = $fullfilename;
}
} else {
// the total filesizes are small enough to keep the rest of the files
break;
}
}
$this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['maxsize']).' files based on (config_cache_maxsize='.$this->config_cache_maxsize.')', __FILE__, __LINE__);
foreach ($DeletedKeys['maxsize'] as $fullfilename) {
unset($CacheDirOldFilesAge[$fullfilename]);
unset($CacheDirOldFilesSize[$fullfilename]);
}
}
} else {
$this->DebugMessage('skipping CleanUpCacheDirectory() because config set to not use it', __FILE__, __LINE__);
}
$totalpurged = 0;
foreach ($DeletedKeys as $key => $value) {
$totalpurged += count($value);
}
$this->DebugMessage('CleanUpCacheDirectory() purged '.$totalpurged.' files (from '.count($AllFilesInCacheDirectory).') based on config settings', __FILE__, __LINE__);
if ($totalpurged > 0) {
$empty_dirs = array();
foreach ($AllFilesInCacheDirectory as $fullfilename) {
if (is_dir($fullfilename)) {
$empty_dirs[$this->realPathSafe($fullfilename)] = 1;
} else {
unset($empty_dirs[$this->realPathSafe(dirname($fullfilename))]);
}
}
krsort($empty_dirs);
$totalpurgeddirs = 0;
foreach ($empty_dirs as $empty_dir => $dummy) {
if ($empty_dir == $this->config_cache_directory) {
// shouldn't happen, but just in case, don't let it delete actual cache directory
continue;
} elseif (@rmdir($empty_dir)) {
$totalpurgeddirs++;
} else {
$this->DebugMessage('failed to rmdir('.$empty_dir.')', __FILE__, __LINE__);
}
}
$this->DebugMessage('purged '.$totalpurgeddirs.' empty directories', __FILE__, __LINE__);
}
return true;
}
//////////////////////////////////////////////////////////////////////
// private: re-initializator (call between rendering multiple images with one object)
public function resetObject() {
$class_vars = get_class_vars(get_class($this));
foreach ($class_vars as $key => $value) {
// do not clobber debug or config info
if (!preg_match('#^(config_|debug|fatalerror)#i', $key)) {
$this->$key = $value;
}
}
$this->phpThumb(); // re-initialize some class variables
return true;
}
//////////////////////////////////////////////////////////////////////
public function ResolveSource() {
if (is_resource($this->gdimg_source) || (is_object($this->gdimg_source) && $this->gdimg_source instanceOf \GdImage)) {
$this->DebugMessage('ResolveSource() exiting because is_resource($this->gdimg_source)', __FILE__, __LINE__);
return true;
}
if ($this->rawImageData) {
$this->sourceFilename = null;
$this->DebugMessage('ResolveSource() exiting because $this->rawImageData is set ('.number_format(strlen($this->rawImageData)).' bytes)', __FILE__, __LINE__);
return true;
}
if ($this->sourceFilename) {
$this->sourceFilename = $this->ResolveFilenameToAbsolute($this->sourceFilename);
$this->DebugMessage('$this->sourceFilename set to "'.$this->sourceFilename.'"', __FILE__, __LINE__);
} elseif ($this->src) {
$this->sourceFilename = $this->ResolveFilenameToAbsolute($this->src);
$this->DebugMessage('$this->sourceFilename set to "'.$this->sourceFilename.'" from $this->src ('.$this->src.')', __FILE__, __LINE__);
} else {
return $this->ErrorImage('$this->sourceFilename and $this->src are both empty');
}
if ($this->iswindows && ((substr($this->sourceFilename, 0, 2) == '//') || (substr($this->sourceFilename, 0, 2) == '\\\\'))) {
// Windows \\share\filename.ext
} elseif (preg_match('#^[a-z0-9]+://#i', $this->sourceFilename, $protocol_matches)) {
if (preg_match('#^(f|ht)tps?\://#i', $this->sourceFilename)) {
// URL
if ($this->config_http_user_agent) {