function ImageCreateFromStringReplacement(&$RawImageData, $DieOnErrors = false)
{
// there are serious bugs in the non-bundled versions of GD which may cause
// PHP to segfault when calling ImageCreateFromString() - avoid if at all possible
// when not using a bundled version of GD2
if (!phpthumb_functions::gd_version()) {
if ($DieOnErrors) {
if (!headers_sent()) {
// base64-encoded error image in GIF format
$ERROR_NOGD = 'R0lGODlhIAAgALMAAAAAABQUFCQkJDY2NkZGRldXV2ZmZnJycoaGhpSUlKWlpbe3t8XFxdXV1eTk5P7+/iwAAAAAIAAgAAAE/vDJSau9WILtTAACUinDNijZtAHfCojS4W5H+qxD8xibIDE9h0OwWaRWDIljJSkUJYsN4bihMB8th3IToAKs1VtYM75cyV8sZ8vygtOE5yMKmGbO4jRdICQCjHdlZzwzNW4qZSQmKDaNjhUMBX4BBAlmMywFSRWEmAI6b5gAlhNxokGhooAIK5o/pi9vEw4Lfj4OLTAUpj6IabMtCwlSFw0DCKBoFqwAB04AjI54PyZ+yY3TD0ss2YcVmN/gvpcu4TOyFivWqYJlbAHPpOntvxNAACcmGHjZzAZqzSzcq5fNjxFmAFw9iFRunD1epU6tsIPmFCAJnWYE0FURk7wJDA0MTKpEzoWAAskiAAA7';
header('Content-Type: image/gif');
echo base64_decode($ERROR_NOGD);
} else {
echo '*** ERROR: No PHP-GD support available ***';
}
exit;
} else {
$this->DebugMessage('ImageCreateFromStringReplacement() failed: gd_version says "' . phpthumb_functions::gd_version() . '"', __FILE__, __LINE__);
return false;
}
}
if (phpthumb_functions::gd_is_bundled()) {
$this->DebugMessage('ImageCreateFromStringReplacement() calling built-in ImageCreateFromString()', __FILE__, __LINE__);
return @ImageCreateFromString($RawImageData);
}
if ($this->issafemode) {
$this->DebugMessage('ImageCreateFromStringReplacement() failed: cannot create temp file in SAFE_MODE', __FILE__, __LINE__);
return false;
}
switch (substr($RawImageData, 0, 3)) {
case 'GIF':
$ICFSreplacementFunctionName = 'ImageCreateFromGIF';
break;
case "ÿØÿ":
$ICFSreplacementFunctionName = 'ImageCreateFromJPEG';
break;
case "‰" . 'PN':
$ICFSreplacementFunctionName = 'ImageCreateFromPNG';
break;
default:
$this->DebugMessage('ImageCreateFromStringReplacement() failed: unknown fileformat signature "' . phpthumb_functions::HexCharDisplay(substr($RawImageData, 0, 3)) . '"', __FILE__, __LINE__);
return false;
break;
}
if ($tempnam = $this->phpThumb_tempnam()) {
if ($fp_tempnam = @fopen($tempnam, 'wb')) {
fwrite($fp_tempnam, $RawImageData);
fclose($fp_tempnam);
if ($ICFSreplacementFunctionName == 'ImageCreateFromGIF' && !function_exists($ICFSreplacementFunctionName)) {
// Need to create from GIF file, but ImageCreateFromGIF does not exist
ob_start();
if (!@(include_once dirname(__FILE__) . '/phpthumb.gif.php')) {
$ErrorMessage = 'Failed to include required file "' . dirname(__FILE__) . '/phpthumb.gif.php" in ' . __FILE__ . ' on line ' . __LINE__;
$this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
}
ob_end_clean();
// gif_loadFileToGDimageResource() cannot read from raw data, write to file first
if ($tempfilename = $this->phpThumb_tempnam()) {
if ($fp_tempfile = @fopen($tempfilename, 'wb')) {
fwrite($fp_tempfile, $RawImageData);
fclose($fp_tempfile);
$gdimg_source = gif_loadFileToGDimageResource($tempfilename);
$this->DebugMessage('gif_loadFileToGDimageResource(' . $tempfilename . ') completed', __FILE__, __LINE__);
$this->DebugMessage('deleting "' . $tempfilename . '"', __FILE__, __LINE__);
unlink($tempfilename);
return $gdimg_source;
// break;
} else {
$ErrorMessage = 'Failed to open tempfile in ' . __FILE__ . ' on line ' . __LINE__;
$this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
}
} else {
$ErrorMessage = 'Failed to open generate tempfile name in ' . __FILE__ . ' on line ' . __LINE__;
$this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
}
} elseif (function_exists($ICFSreplacementFunctionName) && ($gdimg_source = @$ICFSreplacementFunctionName($tempnam))) {
// great
$this->DebugMessage($ICFSreplacementFunctionName . '(' . $tempnam . ') succeeded', __FILE__, __LINE__);
$this->DebugMessage('deleting "' . $tempnam . '"', __FILE__, __LINE__);
unlink($tempnam);
return $gdimg_source;
} else {
// GD functions not available, or failed to create image
$this->DebugMessage($ICFSreplacementFunctionName . '(' . $tempnam . ') ' . (function_exists($ICFSreplacementFunctionName) ? 'failed' : 'does not exist'), __FILE__, __LINE__);
if (isset($_GET['phpThumbDebug'])) {
$this->phpThumbDebug();
}
}
} else {
$ErrorMessage = 'Failed to fopen(' . $tempnam . ', "wb") in ' . __FILE__ . ' on line ' . __LINE__ . "\n" . 'You may need to set $PHPTHUMB_CONFIG[temp_directory] in phpThumb.config.php';
if ($this->issafemode) {
$ErrorMessage = 'ImageCreateFromStringReplacement() failed in ' . __FILE__ . ' on line ' . __LINE__ . ': cannot create temp file in SAFE_MODE';
}
$this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
}
$this->DebugMessage('deleting "' . $tempnam . '"', __FILE__, __LINE__);
@unlink($tempnam);
} else {
$ErrorMessage = 'Failed to generate phpThumb_tempnam() in ' . __FILE__ . ' on line ' . __LINE__ . "\n" . 'You may need to set $PHPTHUMB_CONFIG[temp_directory] in phpThumb.config.php';
if ($this->issafemode) {
$ErrorMessage = 'ImageCreateFromStringReplacement() failed in ' . __FILE__ . ' on line ' . __LINE__ . ': cannot create temp file in SAFE_MODE';
}
}
if ($DieOnErrors && $ErrorMessage) {
return $this->ErrorImage($ErrorMessage);
}
return false;
}
function SourceImageToGD()
{
if (is_resource($this->gdimg_source)) {
$this->DebugMessage('skipping SourceImageToGD() because $this->gdimg_source is already a resource', __FILE__, __LINE__);
return true;
}
$this->DebugMessage('starting SourceImageToGD()', __FILE__, __LINE__);
while (true) {
if (!$this->config_use_exif_thumbnail_for_speed) {
$this->DebugMessage('Not using EXIF thumbnail data because $this->config_use_exif_thumbnail_for_speed is FALSE', __FILE__, __LINE__);
break;
}
if (!$this->exif_thumbnail_data) {
$this->DebugMessage('Not using EXIF thumbnail data because $this->exif_thumbnail_data is empty', __FILE__, __LINE__);
break;
}
if ($this->thumbnailCropX != 0 || $this->thumbnailCropY != 0) {
$this->DebugMessage('Not using EXIF thumbnail data because source cropping is enabled (' . $this->thumbnailCropX . ',' . $this->thumbnailCropY . ')', __FILE__, __LINE__);
break;
}
if ($this->w > $this->exif_thumbnail_width || $this->h > $this->exif_thumbnail_height) {
$this->DebugMessage('Not using EXIF thumbnail data because EXIF thumbnail is too small (' . $this->exif_thumbnail_width . 'x' . $this->exif_thumbnail_height . ' vs ' . $this->w . 'x' . $this->h . ')', __FILE__, __LINE__);
break;
}
$source_ar = $this->source_width / $this->source_height;
$exif_ar = $this->exif_thumbnail_width / $this->exif_thumbnail_height;
if (number_format($source_ar, 2) != number_format($exif_ar, 2)) {
$this->DebugMessage('not using EXIF thumbnail because $source_ar != $exif_ar (' . $source_ar . ' != ' . $exif_ar . ')', __FILE__, __LINE__);
}
// EXIF thumbnail exists, and is equal to or larger than destination thumbnail, and will be use as source image
$this->DebugMessage('Trying to use EXIF thumbnail as source image', __FILE__, __LINE__);
if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {
$this->DebugMessage('Successfully using EXIF thumbnail as source image', __FILE__, __LINE__);
$this->gdimg_source = $gdimg_exif_temp;
$this->source_width = $this->exif_thumbnail_width;
$this->source_height = $this->exif_thumbnail_height;
$this->thumbnailCropW = $this->source_width;
$this->thumbnailCropH = $this->source_height;
return true;
} else {
$this->DebugMessage('$this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false) failed', __FILE__, __LINE__);
}
break;
}
if (!$this->gdimg_source) {
// try to create GD image source directly via GD, if possible,
// rather than buffering to memory and creating with ImageCreateFromString
$ImageCreateWasAttempted = false;
$ImageCreateFromFunction = array(1 => 'ImageCreateFromGIF', 2 => 'ImageCreateFromJPEG', 3 => 'ImageCreateFromPNG', 15 => 'ImageCreateFromWBMP');
switch (@$this->getimagesizeinfo[2]) {
case 1:
// GIF
// GIF
case 2:
// JPEG
// JPEG
case 3:
// PNG
// PNG
case 15:
// WBMP
if ($this->md5s && $this->md5s != phpthumb_functions::md5_file_safe($this->sourceFilename)) {
return $this->ErrorImage('$this->md5s != md5($this->rawImageData)' . "\n" . '"' . $this->md5s . '" != ' . "\n" . '"' . phpthumb_functions::md5_file_safe($this->sourceFilename) . '"');
}
$ImageCreateFromFunctionName = $ImageCreateFromFunction[$this->getimagesizeinfo[2]];
if (function_exists($ImageCreateFromFunctionName)) {
$this->DebugMessage('Calling ' . $ImageCreateFromFunctionName . '(' . $this->sourceFilename . ')', __FILE__, __LINE__);
$ImageCreateWasAttempted = true;
$this->gdimg_source = @$ImageCreateFromFunctionName($this->sourceFilename);
switch ($this->getimagesizeinfo[2]) {
case 1:
case 3:
// GIF or PNG input file may have transparency
$this->is_alpha = true;
break;
}
} else {
$this->DebugMessage('NOT calling ' . $ImageCreateFromFunctionName . '(' . $this->sourceFilename . ') because !function_exists(' . $ImageCreateFromFunctionName . ')', __FILE__, __LINE__);
}
break;
case 4:
// SWF
// SWF
case 5:
// PSD
// PSD
case 6:
// BMP
// BMP
case 7:
// TIFF (LE)
// TIFF (LE)
case 8:
// TIFF (BE)
// TIFF (BE)
case 9:
// JPC
// JPC
case 10:
// JP2
// JP2
case 11:
// JPX
// JPX
case 12:
// JB2
// JB2
case 13:
// SWC
// SWC
case 14:
// IFF
// IFF
case 16:
// XBM
$this->DebugMessage('No built-in image creation function for image type "' . @$this->getimagesizeinfo[2] . '" ($this->getimagesizeinfo[2])', __FILE__, __LINE__);
break;
case '':
// no source file, source image was probably set by setSourceData()
break;
default:
$this->DebugMessage('Unknown value for $this->getimagesizeinfo[2]: "' . @$this->getimagesizeinfo[2] . '"', __FILE__, __LINE__);
break;
}
if (!$this->gdimg_source) {
// cannot create from filename, attempt to create source image with ImageCreateFromString, if possible
if ($ImageCreateWasAttempted) {
$this->DebugMessage(@$ImageCreateFromFunctionName . '() was attempted but FAILED', __FILE__, __LINE__);
}
if (!$this->rawImageData) {
$this->DebugMessage('Populating $this->rawImageData and attempting ImageCreateFromStringReplacement()', __FILE__, __LINE__);
if ($fp = @fopen($this->sourceFilename, 'rb')) {
$this->rawImageData = '';
$filesize = filesize($this->sourceFilename);
$blocksize = 16384;
$blockreads = ceil($filesize / $blocksize);
for ($i = 0; $i < $blockreads; $i++) {
$this->rawImageData .= fread($fp, $blocksize);
}
fclose($fp);
} else {
return $this->ErrorImage('cannot fopen("' . $this->sourceFilename . '") on line ' . __LINE__ . ' of ' . __FILE__);
}
}
if ($this->md5s && $this->md5s != md5($this->rawImageData)) {
return $this->ErrorImage('$this->md5s != md5($this->rawImageData)' . "\n" . '"' . $this->md5s . '" != ' . "\n" . '"' . md5($this->rawImageData) . '"');
}
$this->gdimg_source = $this->ImageCreateFromStringReplacement($this->rawImageData, true);
}
if (!$this->gdimg_source) {
$this->DebugMessage('$this->gdimg_source is still empty', __FILE__, __LINE__);
if ($this->ImageMagickThumbnailToGD()) {
// excellent, we have a thumbnailed source image
$this->DebugMessage('ImageMagickThumbnailToGD() succeeded', __FILE__, __LINE__);
} else {
$this->DebugMessage('ImageMagickThumbnailToGD() failed', __FILE__, __LINE__);
$imageHeader = '';
$gd_info = phpthumb_functions::gd_info();
$GDreadSupport = false;
switch (substr($this->rawImageData, 0, 3)) {
case 'GIF':
$imageHeader = 'Content-Type: image/gif';
$GDreadSupport = (bool) @$gd_info['GIF Read Support'];
break;
case "ÿØÿ":
$imageHeader = 'Content-Type: image/jpeg';
$GDreadSupport = (bool) @$gd_info['JPG Support'];
break;
case "‰" . 'PN':
$imageHeader = 'Content-Type: image/png';
$GDreadSupport = (bool) @$gd_info['PNG Support'];
break;
}
if ($imageHeader) {
// cannot create image for whatever reason (maybe ImageCreateFromJPEG et al are not available?)
// and ImageMagick is not available either, no choice but to output original (not resized/modified) data and exit
if ($this->config_error_die_on_source_failure && !$this->phpThumbDebug) {
$this->ErrorImage('All attempts to create GD image source failed (' . ($GDreadSupport ? 'source image probably corrupt' : 'GD does not have read support for "' . $imageHeader . '"') . '), cannot generate thumbnail');
} else {
//$this->DebugMessage('All attempts to create GD image source failed ('.($GDreadSupport ? 'source image probably corrupt' : 'GD does not have read support for "'.$imageHeader.'"').'), outputing raw image', __FILE__, __LINE__);
//if (!$this->phpThumbDebug) {
// header($imageHeader);
// echo $this->rawImageData;
// exit;
//}
return false;
}
}
switch (substr($this->rawImageData, 0, 2)) {
case 'BM':
ob_start();
if (!@(include_once dirname(__FILE__) . '/phpthumb.bmp.php')) {
ob_end_clean();
if ($this->phpThumbDebug) {
$this->DebugMessage('include_once(' . dirname(__FILE__) . '/phpthumb.bmp.php) failed', __FILE__, __LINE__);
return false;
}
return $this->ErrorImage('include_once(' . dirname(__FILE__) . '/phpthumb.bmp.php) failed');
}
ob_end_clean();
$phpthumb_bmp = new phpthumb_bmp();
if ($this->gdimg_source = $phpthumb_bmp->phpthumb_bmp2gd($this->rawImageData, phpthumb_functions::gd_version() >= 2.0)) {
$this->DebugMessage('$phpthumb_bmp->phpthumb_bmp2gd() succeeded', __FILE__, __LINE__);
break;
} elseif ($this->phpThumbDebug) {
$this->DebugMessage('phpthumb_bmp2db failed', __FILE__, __LINE__);
return false;
}
return $this->ErrorImage('ImageMagick is unavailable and phpThumb() does not support BMP source images without it');
break;
}
switch (substr($this->rawImageData, 0, 4)) {
case 'II' . "*":
case 'MM' . "*":
if ($this->phpThumbDebug) {
$this->DebugMessage('ImageMagick is unavailable and phpThumb() does not support TIFF source images without it', __FILE__, __LINE__);
return false;
}
return $this->ErrorImage('ImageMagick is unavailable and phpThumb() does not support TIFF source images without it');
break;
case "×ÍÆš":
if ($this->phpThumbDebug) {
$this->DebugMessage('ImageMagick is unavailable and phpThumb() does not support WMF source images without it', __FILE__, __LINE__);
return false;
}
return $this->ErrorImage('ImageMagick is unavailable and phpThumb() does not support WMF source images without it');
break;
}
if (!$this->gdimg_source) {
if ($this->phpThumbDebug) {
$this->DebugMessage('Unknown image type identified by "' . substr($this->rawImageData, 0, 4) . '" (' . phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)) . ') in SourceImageToGD()', __FILE__, __LINE__);
return false;
}
return $this->ErrorImage('Unknown image type identified by "' . substr($this->rawImageData, 0, 4) . '" (' . phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)) . ') in SourceImageToGD()');
}
}
}
}
if (!$this->gdimg_source) {
if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {
$this->DebugMessage('All other attempts failed, but successfully using EXIF thumbnail as source image', __FILE__, __LINE__);
$this->gdimg_source = $gdimg_exif_temp;
// override allow-enlarging setting if EXIF thumbnail is the only source available
// otherwise thumbnails larger than the EXIF thumbnail will be created at EXIF size
$this->aoe = true;
return true;
}
return false;
}
$this->source_width = ImageSX($this->gdimg_source);
$this->source_height = ImageSY($this->gdimg_source);
return true;
}
function ImageCreateFromStringReplacement(&$RawImageData, $DieOnErrors = false)
{
// there are serious bugs in the non-bundled versions of GD which may cause
// PHP to segfault when calling ImageCreateFromString() - avoid if at all possible
// when not using a bundled version of GD2
$gd_info = phpthumb_functions::gd_info();
if (strpos($gd_info['GD Version'], 'bundled') !== false) {
return @ImageCreateFromString($RawImageData);
}
switch (substr($RawImageData, 0, 3)) {
case 'GIF':
$ICFSreplacementFunctionName = 'ImageCreateFromGIF';
break;
case "ÿØÿ":
$ICFSreplacementFunctionName = 'ImageCreateFromJPEG';
break;
case "‰" . 'PN':
$ICFSreplacementFunctionName = 'ImageCreateFromPNG';
break;
default:
$this->ErrorImage('Unknown image type identified by "' . substr($this->rawImageData, 0, 3) . '" (' . phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 3)) . ') in ImageCreateFromStringReplacement()');
break;
}
if ($tempnam = tempnam($this->config_temp_directory, 'pThumb')) {
if ($fp_tempnam = @fopen($tempnam, 'wb')) {
fwrite($fp_tempnam, $RawImageData);
fclose($fp_tempnam);
if ($ICFSreplacementFunctionName == 'ImageCreateFromGIF' && !function_exists($ICFSreplacementFunctionName)) {
// Need to create from GIF file, but ImageCreateFromGIF does not exist
if (@(include_once 'phpthumb.gif.php')) {
// gif_loadFileToGDimageResource() cannot read from raw data, write to file first
if ($tempfilename = tempnam($this->config_temp_directory, 'pThumb')) {
if ($fp_tempfile = @fopen($tempfilename, 'wb')) {
fwrite($fp_tempfile, $RawImageData);
fclose($fp_tempfile);
$gdimg_source = gif_loadFileToGDimageResource($tempfilename);
unlink($tempfilename);
return $gdimg_source;
break;
} else {
$ErrorMessage = 'Failed to open tempfile in ' . __FILE__ . ' on line ' . __LINE__;
}
} else {
$ErrorMessage = 'Failed to open generate tempfile name in ' . __FILE__ . ' on line ' . __LINE__;
}
} else {
$ErrorMessage = 'Failed to include required file "phpthumb.gif.php" in ' . __FILE__ . ' on line ' . __LINE__;
}
} elseif (function_exists($ICFSreplacementFunctionName) && ($gdimg_source = $ICFSreplacementFunctionName($tempnam))) {
// great
unlink($tempnam);
return $gdimg_source;
} else {
// GD functions not available
// base64-encoded error image in GIF format
$ERROR_NOGD = 'R0lGODlhIAAgALMAAAAAABQUFCQkJDY2NkZGRldXV2ZmZnJycoaGhpSUlKWlpbe3t8XFxdXV1eTk5P7+/iwAAAAAIAAgAAAE/vDJSau9WILtTAACUinDNijZtAHfCojS4W5H+qxD8xibIDE9h0OwWaRWDIljJSkUJYsN4bihMB8th3IToAKs1VtYM75cyV8sZ8vygtOE5yMKmGbO4jRdICQCjHdlZzwzNW4qZSQmKDaNjhUMBX4BBAlmMywFSRWEmAI6b5gAlhNxokGhooAIK5o/pi9vEw4Lfj4OLTAUpj6IabMtCwlSFw0DCKBoFqwAB04AjI54PyZ+yY3TD0ss2YcVmN/gvpcu4TOyFivWqYJlbAHPpOntvxNAACcmGHjZzAZqzSzcq5fNjxFmAFw9iFRunD1epU6tsIPmFCAJnWYE0FURk7wJDA0MTKpEzoWAAskiAAA7';
header('Content-type: image/gif');
echo base64_decode($ERROR_NOGD);
exit;
}
} else {
$ErrorMessage = 'Failed to fopen(' . $tempnam . ', "wb") in ' . __FILE__ . ' on line ' . __LINE__ . "\n" . 'You may need to set $PHPTHUMB_CONFIG[temp_directory] in phpthumb.config.php';
}
unlink($tempnam);
} else {
$ErrorMessage = 'Failed to generate tempnam() in ' . __FILE__ . ' on line ' . __LINE__ . "\n" . 'You may need to set $PHPTHUMB_CONFIG[temp_directory] in phpthumb.config.php';
}
if ($DieOnErrors && !empty($ErrorMessage)) {
die($ErrorMessage);
}
return false;
}
function SourceImageToGD()
{
if (is_resource($this->gdimg_source)) {
$this->DebugMessage('skipping SourceImageToGD() because $this->gdimg_source is already a resource', __FILE__, __LINE__);
return true;
}
$this->DebugMessage('starting SourceImageToGD()', __FILE__, __LINE__);
if ($this->config_use_exif_thumbnail_for_speed && !empty($this->exif_thumbnail_data)) {
if ($this->exif_thumbnail_width >= $this->thumbnail_image_width && $this->exif_thumbnail_height >= $this->thumbnail_image_height && $this->thumbnailCropX == 0 && $this->thumbnailCropY == 0 && $this->thumbnailCropW > 0 && $this->thumbnailCropH > 0 && $this->source_width >= $this->thumbnailCropW && $this->source_height >= $this->thumbnailCropH) {
// EXIF thumbnail exists, and is equal to or larger than destination thumbnail, and will be use as source image
// Only benefit here is greater speed, not lower memory usage
$this->DebugMessage('Trying to use EXIF thumbnail as source image', __FILE__, __LINE__);
if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {
$this->DebugMessage('Successfully using EXIF thumbnail as source image', __FILE__, __LINE__);
$this->gdimg_source = $gdimg_exif_temp;
$this->source_width = $this->exif_thumbnail_width;
$this->source_height = $this->exif_thumbnail_height;
$this->thumbnailCropW = $this->source_width;
$this->thumbnailCropH = $this->source_height;
return true;
} else {
$this->DebugMessage('$this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false) failed', __FILE__, __LINE__);
}
} else {
$this->DebugMessage('Not using EXIF thumbnail data because EXIF thumbnail is too small', __FILE__, __LINE__);
}
} else {
if (!$this->config_use_exif_thumbnail_for_speed) {
$this->DebugMessage('Not using EXIF thumbnail data because $this->config_use_exif_thumbnail_for_speed is FALSE', __FILE__, __LINE__);
} elseif ($this->getimagesizeinfo[2] == 2) {
$this->DebugMessage('Not using EXIF thumbnail data because EXIF thumbnail is unavailable', __FILE__, __LINE__);
} elseif (is_array($this->getimagesizeinfo)) {
$this->DebugMessage('Not using EXIF thumbnail data because source image is not JPEG, therefore no EXIF thumbnail available', __FILE__, __LINE__);
//} else {
// $this->DebugMessage('Not using EXIF thumbnail data because GetImageSize failed on source image', __FILE__, __LINE__);
}
}
if (empty($this->gdimg_source)) {
// try to create GD image source directly via GD, if possible,
// rather than buffering to memory and creating with ImageCreateFromString
$ImageCreateWasAttempted = false;
if (!empty($this->rawImageData)) {
// fine
} elseif ($this->iswindows && (substr($this->sourceFilename, 0, 2) == '//' || substr($this->sourceFilename, 0, 2) == '\\\\')) {
// Windows \\share\filename.ext
} elseif (eregi('^(f|ht)tp[s]?://', $this->sourceFilename)) {
// URL
} elseif (!file_exists($this->sourceFilename)) {
return $this->ErrorImage('"' . $this->sourceFilename . '" does not exist');
} elseif (!is_file($this->sourceFilename)) {
return $this->ErrorImage('"' . $this->sourceFilename . '" is not a file');
}
$ImageCreateFromFunction = array(1 => 'ImageCreateFromGIF', 2 => 'ImageCreateFromJPEG', 3 => 'ImageCreateFromPNG', 15 => 'ImageCreateFromWBMP');
switch (@$this->getimagesizeinfo[2]) {
case 1:
// GIF
// GIF
case 2:
// JPEG
// JPEG
case 3:
// PNG
// PNG
case 15:
// WBMP
$ImageCreateFromFunctionName = $ImageCreateFromFunction[$this->getimagesizeinfo[2]];
if (function_exists($ImageCreateFromFunctionName)) {
$this->DebugMessage('Calling ' . $ImageCreateFromFunctionName . '(' . $this->sourceFilename . ')', __FILE__, __LINE__);
$ImageCreateWasAttempted = true;
$this->gdimg_source = @$ImageCreateFromFunctionName($this->sourceFilename);
switch ($this->getimagesizeinfo[2]) {
case 1:
case 3:
// GIF or PNG input file may have transparency
$this->is_alpha = true;
break;
}
} else {
$this->DebugMessage('NOT calling ' . $ImageCreateFromFunctionName . '(' . $this->sourceFilename . ') because !function_exists(' . $ImageCreateFromFunctionName . ')', __FILE__, __LINE__);
}
break;
case 4:
// SWF
// SWF
case 5:
// PSD
// PSD
case 6:
// BMP
// BMP
case 7:
// TIFF (LE)
// TIFF (LE)
case 8:
// TIFF (BE)
// TIFF (BE)
case 9:
// JPC
// JPC
case 10:
// JP2
// JP2
case 11:
// JPX
// JPX
case 12:
// JB2
// JB2
case 13:
// SWC
// SWC
case 14:
// IFF
// IFF
case 16:
// XBM
$this->DebugMessage('No built-in image creation function for image type "' . @$this->getimagesizeinfo[2] . '" ($this->getimagesizeinfo[2])', __FILE__, __LINE__);
break;
case '':
// no source file, source image was probably set by setSourceData()
break;
default:
$this->DebugMessage('Unknown value for $this->getimagesizeinfo[2]: "' . @$this->getimagesizeinfo[2] . '"', __FILE__, __LINE__);
break;
}
if (empty($this->gdimg_source)) {
// cannot create from filename, attempt to create source image with ImageCreateFromString, if possible
if ($ImageCreateWasAttempted) {
$this->DebugMessage(@$ImageCreateFromFunctionName . '() was attempted but FAILED', __FILE__, __LINE__);
}
if (empty($this->rawImageData)) {
$this->DebugMessage('Populating $this->rawImageData and attempting ImageCreateFromStringReplacement()', __FILE__, __LINE__);
if ($fp = @fopen($this->sourceFilename, 'rb')) {
$this->rawImageData = '';
$filesize = filesize($this->sourceFilename);
$blocksize = 16384;
$blockreads = ceil($filesize / $blocksize);
for ($i = 0; $i < $blockreads; $i++) {
$this->rawImageData .= fread($fp, $blocksize);
}
fclose($fp);
} else {
return $this->ErrorImage('cannot fopen("' . $this->sourceFilename . '") on line ' . __LINE__ . ' of ' . __FILE__);
}
}
$this->gdimg_source = $this->ImageCreateFromStringReplacement($this->rawImageData, true);
}
if (empty($this->gdimg_source)) {
$this->DebugMessage('$this->gdimg_source is still empty', __FILE__, __LINE__);
if ($this->ImageMagickThumbnailToGD()) {
// excellent, we have a thumbnailed source image
$this->DebugMessage('ImageMagickThumbnailToGD() succeeded', __FILE__, __LINE__);
} else {
$this->DebugMessage('ImageMagickThumbnailToGD() failed', __FILE__, __LINE__);
$imageHeader = '';
switch (substr($this->rawImageData, 0, 3)) {
case 'GIF':
$imageHeader = 'Content-type: image/gif';
break;
case "ÿØÿ":
$imageHeader = 'Content-type: image/jpeg';
break;
case "‰" . 'PN':
$imageHeader = 'Content-type: image/png';
break;
}
if ($imageHeader) {
// cannot create image for whatever reason (maybe ImageCreateFromJPEG et al are not available?)
// and ImageMagick is not available either, no choice but to output original (not resized/modified) data and exit
if ($this->config_error_die_on_source_failure) {
$this->ErrorImage('All attempts to create GD image source failed (source image probably corrupt), cannot generate thumbnail');
} else {
$this->DebugMessage('All attempts to create GD image source failed, outputing raw image', __FILE__, __LINE__);
header($imageHeader);
echo $this->rawImageData;
exit;
}
}
switch (substr($this->rawImageData, 0, 2)) {
case 'BM':
if (@(include_once 'phpthumb.bmp.php')) {
$phpthumb_bmp = new phpthumb_bmp();
if ($this->gdimg_source = $phpthumb_bmp->phpthumb_bmp2gd($this->rawImageData, phpthumb_functions::gd_version() >= 2.0)) {
$this->DebugMessage('$phpthumb_bmp->phpthumb_bmp2gd() succeeded', __FILE__, __LINE__);
break;
} else {
return $this->ErrorImage('phpthumb_bmp2db failed');
}
} else {
return $this->ErrorImage('include_once(phpthumb.bmp.php) failed');
}
return $this->ErrorImage('ImageMagick is unavailable and phpThumb() does not support BMP source images without it');
break;
}
switch (substr($this->rawImageData, 0, 4)) {
case 'II' . "*":
case 'MM' . "*":
return $this->ErrorImage('ImageMagick is unavailable and phpThumb() does not support TIFF source images without it');
break;
case "×ÍÆš":
return $this->ErrorImage('ImageMagick is unavailable and phpThumb() does not support WMF source images without it');
break;
}
if (empty($this->gdimg_source)) {
return $this->ErrorImage('Unknown image type identified by "' . substr($this->rawImageData, 0, 4) . '" (' . phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)) . ') in SourceImageToGD()');
}
}
}
}
$this->source_width = ImageSX($this->gdimg_source);
$this->source_height = ImageSY($this->gdimg_source);
return true;
}
