/core/model/phpthumb/phpthumb.class.php
PHP | 4443 lines | 3658 code | 487 blank | 298 comment | 873 complexity | 7c87218066514b922c8b6d56f41cd943 MD5 | raw file
Possible License(s): GPL-2.0, Apache-2.0, BSD-3-Clause, LGPL-2.1
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- <?php
- //////////////////////////////////////////////////////////////
- // phpThumb() by James Heinrich <info@silisoftware.com> //
- // 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'))
- {
- ob_start();
- if(!include_once __DIR__ . '/phpthumb.functions.php')
- {
- ob_end_flush();
- die('failed to include_once("' . __DIR__ . '/phpthumb.functions.php")');
- }
- ob_end_clean();
- }
- 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 = 75; // 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 $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 = 75;
- 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');
- public $is_alpha = false;
- public $iswindows = null;
- public $issafemode = null;
- public $php_memory_limit = null;
- public $phpthumb_version = '1.7.15-202004301145';
- //////////////////////////////////////////////////////////////////////
- // 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 ('' !== $php_config_memory_limit) {
- if (strtoupper($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() {
- $this->purgeTempFiles();
- }
- // public:
- public function purgeTempFiles() {
- foreach ($this->tempFilesToDelete as $tempFileToDelete) {
- if (file_exists($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($value));
- } elseif (@is_array($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->Rotate();
- $this->phpThumbDebug('8g');
- $this->CreateGDoutput();
- $this->phpThumbDebug('8h');
- // 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)) {
- $this->DebugMessage('RenderOutput() failed because !is_resource($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);
- if (defined('IMG_WEBP')) {
- $builtin_formats['webp'] = (bool) ($imagetypes & IMG_WEBP); // PHP 5.6.25, 7.0.10
- }
- if (defined('IMG_BMP')) {
- $builtin_formats['bmp'] = (bool) ($imagetypes & IMG_BMP); // PHP 7.2.0
- }
- }
- $this->DebugMessage('imageinterlace($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 6 as default value.', __FILE__, __LINE__);
- $PNGquality = 6;
- }
- imagepng($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);
- $this->outputImageData = ob_get_contents();
- break;
- case 'bmp':
- if (!empty($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)) {
- $this->DebugMessage('OutputThumbnail() failed because !is_resource($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 'jpeg':
- header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
- $ImageOutFunction = 'image'.$this->thumbnailFormat;
- @$ImageOutFunction($this->gdimg_output, null, $this->thumbnailQuality);
- break;
- case 'png':
- case 'gif':
- case 'webp':
- $ImageOutFunction = 'image'.$this->thumbnailFormat;
- if (!function_exists($ImageOutFunction)) {
- $this->DebugMessage($ImageOutFunction.' is not available', __FILE__, __LINE__);
- return false;
- }
- header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
- @$ImageOutFunction($this->gdimg_output);
- break;
- case 'bmp':
- if (function_exists('imagebmp')) {
- header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($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)) {
- $this->DebugMessage('ResolveSource() exiting because is_resource($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) {
- ini_set('user_agent', $this->config_http_user_agent);
- }
- } else {
- return $this->ErrorImage('only FTP and HTTP/HTTPS protocols are allowed, "'.$protocol_matches[1].'" is not');
- }
- } elseif (!@file_exists($this->sourceFilename)) {
- return $this->ErrorImage('"'.$this->sourceFilename.'" does not exist');
- } elseif (!@is_file($this->sourceFilename)) {
- return $this->ErrorImage('"'.$this->sourceFilename.'" is not a file');
- }
- return true;
- }
- public function setOutputFormat() {
- static $alreadyCalled = false;
- if ($this->thumbnailFormat && $alreadyCalled) {
- return true;
- }
- $alreadyCalled = true;
- $AvailableImageOutputFormats = array();
- $AvailableImageOutputFormats[] = 'text';
- if (@is_readable( __DIR__ .'/phpthumb.ico.php')) {
- $AvailableImageOutputFormats[] = 'ico';
- }
- if (@is_readable( __DIR__ .'/phpthumb.bmp.php')) {
- $AvailableImageOutputFormats[] = 'bmp';
- }
- $this->thumbnailFormat = 'ico';
- // Set default output format based on what image types are available
- if (function_exists('imagetypes')) {
- $imagetypes = imagetypes();
- if ($imagetypes & IMG_WBMP) {
- $this->thumbnailFormat = 'wbmp';
- $AvailableImageOutputFormats[] = 'wbmp';
- }
- if ($imagetypes & IMG_GIF) {
- $this->thumbnailFormat = 'gif';
- $AvailableImageOutputFormats[] = 'gif';
- }
- if ($imagetypes & IMG_WEBP) {
- $this->thumbnailFormat = 'webp';
- $AvailableImageOutputFormats[] = 'webp';
- }
- if ($imagetypes & IMG_PNG) {
- $this->thumbnailFormat = 'png';
- $AvailableImageOutputFormats[] = 'png';
- }
- if ($imagetypes & IMG_JPG) {
- $this->thumbnailFormat = 'jpeg';
- $AvailableImageOutputFormats[] = 'jpeg';
- }
- } else {
- $this->DebugMessage('imagetypes() does not exist - GD support might not be enabled?', __FILE__, __LINE__);
- }
- if ($this->ImageMagickVersion()) {
- $IMformats = array('jpeg', 'png', 'gif', 'bmp', 'ico', 'wbmp', 'webp');
- $this->DebugMessage('Addding ImageMagick formats to $AvailableImageOutputFormats ('.implode(';', $AvailableImageOutputFormats).')', __FILE__, __LINE__);
- foreach ($IMformats as $key => $format) {
- $AvailableImageOutputFormats[] = $format;
- }
- }
- $AvailableImageOutputFormats = array_unique($AvailableImageOutputFormats);
- $this->DebugMessage('$AvailableImageOutputFormats = array('.implode(';', $AvailableImageOutputFormats).')', __FILE__, __LINE__);
- $this->f = preg_replace('#[^a-z]#', '', strtolower($this->f));
- if (strtolower($this->config_output_format) == 'jpg') {
- $this->config_output_format = 'jpeg';
- }
- if (strtolower($this->f) == 'jpg') {
- $this->f = 'jpeg';
- }
- if (phpthumb_functions::CaseInsensitiveInArray($this->config_output_format, $AvailableImageOutputFormats)) {
- // set output format to config default if that format is available
- $this->DebugMessage('$this->thumbnailFormat set to $this->config_output_format "'.strtolower($this->config_output_format).'"', __FILE__, __LINE__);
- $this->thumbnailFormat = strtolower($this->config_output_format);
- } elseif ($this->config_output_format) {
- $this->DebugMessage('$this->thumbnailFormat staying as "'.$this->thumbnailFormat.'" because $this->config_output_format ('.strtolower($this->config_output_format).') is not in $AvailableImageOutputFormats', __FILE__, __LINE__);
- }
- if ($this->f && phpthumb_functions::CaseInsensitiveInArray($this->f, $AvailableImageOutputFormats) ) {
- // override output format if $this->f is set and that format is available
- $this->DebugMessage('$this->thumbnailFormat set to $this->f "'.strtolower($this->f).'"', __FILE__, __LINE__);
- $this->thumbnailFormat = strtolower($this->f);
- } elseif ($this->f) {
- $this->DebugMessage('$this->thumbnailFormat staying as "'.$this->thumbnailFormat.'" because $this->f ('.strtolower($this->f).') is not in $AvailableImageOutputFormats', __FILE__, __LINE__);
- }
- // for JPEG images, quality 1 (worst) to 99 (best)
- // quality < 25 is nasty, with not much size savings - not recommended
- // problems with 100 - invalid JPEG?
- $this->thumbnailQuality = max(1, min(99, ($this->q ? (int) $this->q : 75)));
- $this->DebugMessage('$this->thumbnailQuality set to "'.$this->thumbnailQuality.'"', __FILE__, __LINE__);
- return true;
- }
- public function setCacheDirectory() {
- // resolve cache directory to absolute pathname
- $this->DebugMessage('setCacheDirectory() starting with config_cache_directory = "'.$this->config_cache_directory.'"', __FILE__, __LINE__);
- if ($this->config_cache_directory[ 0 ] == '.') {
- if (preg_match('#^(f|ht)tps?\://#i', $this->src)) {
- if (!$this->config_cache_disable_warning) {
- $this->ErrorImage('$this->config_cache_directory ('.$this->config_cache_directory.') cannot be used for remote images. Adjust "cache_directory" or "cache_disable_warning" in phpThumb.config.php');
- }
- } elseif ($this->src) {
- // resolve relative cache directory to source image
- $this->config_cache_directory = dirname($this->ResolveFilenameToAbsolute($this->src)).DIRECTORY_SEPARATOR.$this->config_cache_directory;
- } else {
- // $this->new is probably set
- }
- }
- if (substr($this->config_cache_directory, -1) == '/') {
- $this->config_cache_directory = substr($this->config_cache_directory, 0, -1);
- }
- if ($this->iswindows) {
- $this->config_cache_directory = str_replace('/', DIRECTORY_SEPARATOR, $this->config_cache_directory);
- }
- if ($this->config_cache_directory) {
- $real_cache_path = $this->realPathSafe($this->config_cache_directory);
- if (!$real_cache_path) {
- $this->DebugMessage('$this->realPathSafe($this->config_cache_directory) failed for "'.$this->config_cache_directory.'"', __FILE__, __LINE__);
- if (!is_dir($this->config_cache_directory)) {
- $this->DebugMessage('!is_dir('.$this->config_cache_directory.')', __FILE__, __LINE__);
- }
- }
- if ($real_cache_path) {
- $this->DebugMessage('setting config_cache_directory to $this->realPathSafe('.$this->config_cache_directory.') = "'.$real_cache_path.'"', __FILE__, __LINE__);
- $this->config_cache_directory = $real_cache_path;
- }
- }
- if (!is_dir($this->config_cache_directory)) {
- if (!$this->config_cache_disable_warning) {
- $this->ErrorImage('$this->config_cache_directory ('.$this->config_cache_directory.') does not exist. Adjust "cache_directory" or "cache_disable_warning" in phpThumb.config.php');
- }
- $this->DebugMessage('$this->config_cache_directory ('.$this->config_cache_directory.') is not a directory', __FILE__, __LINE__);
- $this->config_cache_directory = null;
- } elseif (!@is_writable($this->config_cache_directory)) {
- $this->DebugMessage('$this->config_cache_directory is not writable ('.$this->config_cache_directory.')', __FILE__, __LINE__);
- }
- $this->InitializeTempDirSetting();
- if (!@is_dir($this->config_temp_directory) && !@is_writable($this->config_temp_directory) && @is_dir($this->config_cache_directory) && @is_writable($this->config_cache_directory)) {
- $this->DebugMessage('setting $this->config_temp_directory = $this->config_cache_directory ('.$this->config_cache_directory.')', __FILE__, __LINE__);
- $this->config_temp_directory = $this->config_cache_directory;
- }
- return true;
- }
- /* Takes the array of path segments up to now, and the next segment (maybe a modifier: empty, . or ..)
- Applies it, adding or removing from $segments as a result. Returns nothing. */
- // http://support.silisoftware.com/phpBB3/viewtopic.php?t=961
- public function applyPathSegment(&$segments, $segment) {
- if ($segment == '.') {
- return; // always remove
- }
- if ($segment == '') {
- $test = array_pop($segments);
- if (null === $test) {
- $segments[] = $segment; // keep the first empty block
- } elseif ($test == '') {
- $test = array_pop($segments);
- if (null === $test) {
- $segments[] = $test;
- $segments[] = $segment; // keep the second one too
- } else { // put both back and ignore segment
- $segments[] = $test;
- $segments[] = $test;
- }
- } else {
- $segments[] = $test; // ignore empty blocks
- }
- } else {
- if ($segment == '..') {
- $test = array_pop($segments);
- if (null === $test) {
- $segments[] = $segment;
- } elseif ($test == '..') {
- $segments[] = $test;
- $segments[] = $segment;
- } else {
- if ($test == '') {
- $segments[] = $test;
- } // else nothing, remove both
- }
- } else {
- $segments[] = $segment;
- }
- }
- }
- /* Takes array of path components, normalizes it: removes empty slots and '.', collapses '..' and folder names. Returns array. */
- // http://support.silisoftware.com/phpBB3/viewtopic.php?t=961
- public function normalizePath($segments) {
- $parts = array();
- foreach ($segments as $segment) {
- $this->applyPathSegment($parts, $segment);
- }
- return $parts;
- }
- /* True if the provided path points (without resolving symbolic links) into one of the allowed directories. */
- // http://support.silisoftware.com/phpBB3/viewtopic.php?t=961
- public function matchPath($path, $allowed_dirs) {
- if (!empty($allowed_dirs)) {
- foreach ($allowed_dirs as $one_dir) {
- if (preg_match('#^'.preg_quote(str_replace(DIRECTORY_SEPARATOR, '/', $this->realPathSafe($one_dir))).'#', $path)) {
- return true;
- }
- }
- }
- return false;
- }
- /* True if the provided path points inside one of open_basedirs (or if open_basedirs are disabled) */
- // http://support.silisoftware.com/phpBB3/viewtopic.php?t=961
- public function isInOpenBasedir($path) {
- static $open_basedirs = null;
- if (null === $open_basedirs) {
- $ini_text = ini_get('open_basedir');
- $this->DebugMessage('open_basedir: "'.$ini_text.'"', __FILE__, __LINE__);
- $open_basedirs = array();
- if (strlen($ini_text) > 0) {
- foreach (preg_split('#[;:]#', $ini_text) as $key => $value) {
- $open_basedirs[$key] = $this->realPathSafe($value);
- }
- }
- }
- return (empty($open_basedirs) || $this->matchPath($path, $open_basedirs));
- }
- /* Resolves all symlinks in $path, checking that each continuous part ends in an allowed zone. Returns null, if any component leads outside of allowed zone. */
- // http://support.silisoftware.com/phpBB3/viewtopic.php?t=961
- public function resolvePath($path, $allowed_dirs) {
- $this->DebugMessage('resolvePath: '.$path.' (allowed_dirs: '.print_r($allowed_dirs, true).')', __FILE__, __LINE__);
- // add base path to the top of the list
- if (!$this->config_allow_src_above_docroot) {
- array_unshift($allowed_dirs, $this->realPathSafe($this->config_document_root));
- …
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