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Fix for instances with old GraphicsMagick or ImageMagick versions (no -auto-orient).

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This commit is contained in:
Michael Foster 2013-08-03 22:14:25 -04:00
parent 486eccba2e
commit ac4306555b
5 changed files with 97 additions and 13 deletions
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7
inc/config.php
View File

@ -504,7 +504,7 @@
// Command-line options passed to ImageMagick when using `convert` for thumbnailing. Don't touch the
// placement of "%s" and "%d".
$config['convert_args'] = '-size %dx%d %s -thumbnail %dx%d -auto-orient +profile "*" %s';
$config['convert_args'] = '-size %dx%djjj %s -thumbnail %dx%d -auto-orient +profile "*" %s';
// Strip EXIF metadata from JPEG files.
$config['strip_exif'] = false;
@ -523,6 +523,11 @@
// this value doesn't matter as $config['redraw_image'] attempts to correct orientation too.)
$config['convert_auto_orient'] = false;
// Is your version of ImageMagick or GraphicsMagick old? Older versions may not include the -auto-orient
// switch. This is a manual replacement for that switch. This is independent from the above switch;
// -auto-orrient is applied when thumbnailing too.
$config['convert_manual_orient'] = false;
// Regular expression to check for an XSS exploit with IE 6 and 7. To disable, set to false.
// Details: https://github.com/savetheinternet/Tinyboard/issues/20
$config['ie_mime_type_detection'] = '/<(?:body|head|html|img|plaintext|pre|script|table|title|a href|channel|scriptlet)/i';

2
inc/functions.php
View File

@ -1947,5 +1947,5 @@ function shell_exec_error($command) {
);
}
return ($return === 'TB_SUCCESS') ? false : $return;
return $return === 'TB_SUCCESS' ? false : $return;
}

87
inc/image.php
View File

@ -320,19 +320,23 @@ class ImageConvert extends ImageBase {
if ($this->format == 'gif' && ($config['thumb_ext'] == 'gif' || $config['thumb_ext'] == '') && $config['thumb_keep_animation_frames'] > 1) {
if ($this->gifsicle) {
if (trim($error = shell_exec("gifsicle --unoptimize -O2 --resize {$this->width}x{$this->height} < " .
if (($error = shell_exec_error("gifsicle --unoptimize -O2 --resize {$this->width}x{$this->height} < " .
escapeshellarg($this->src . '') . " \"#0-{$config['thumb_keep_animation_frames']}\" > " .
escapeshellarg($this->temp) . '2>&1 &&echo $?') !== '0') || !file_exists($this->temp))
escapeshellarg($this->temp))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
} else {
if ($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($config['convert_args'],
if ($config['convert_manual_orient'])
$convert_args = str_replace('-auto-orient', ImageConvert::jpeg_exif_orientation($this->src), $config['convert_args']);
else
$convert_args = &$config['convert_args'];
if (($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($convert_args,
$this->width,
$this->height,
escapeshellarg($this->src),
$this->width,
$this->height,
escapeshellarg($this->temp))) || !file_exists($this->temp))
escapeshellarg($this->temp)))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
if ($size = $this->get_size($this->temp)) {
$this->width = $size[0];
@ -340,14 +344,18 @@ class ImageConvert extends ImageBase {
}
}
} else {
if ($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($config['convert_args'],
if ($config['convert_manual_orient'])
$convert_args = str_replace('-auto-orient', ImageConvert::jpeg_exif_orientation($this->src), $config['convert_args']);
else
$convert_args = &$config['convert_args'];
if (($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
sprintf($convert_args,
$this->width,
$this->height,
escapeshellarg($this->src . '[0]'),
$this->width,
$this->height,
escapeshellarg($this->temp))) || !file_exists($this->temp))
escapeshellarg($this->temp)))) || !file_exists($this->temp))
error('Failed to resize image!', null, $error);
if ($size = $this->get_size($this->temp)) {
$this->width = $size[0];
@ -355,6 +363,69 @@ class ImageConvert extends ImageBase {
}
}
}
// For when -auto-orient doesn't exist (older versions)
static public function jpeg_exif_orientation($src, $exif = false) {
if (!$exif) {
$exif = exif_read_data($src);
if (!isset($exif['Orientation']))
return false;
}
switch($exif['Orientation']) {
case 1:
// Normal
return false;
case 2:
// 888888
// 88
// 8888
// 88
// 88
return '-flop';
case 3:
// 88
// 88
// 8888
// 88
// 888888
return '-flip -flop';
case 4:
// 88
// 88
// 8888
// 88
// 888888
return '-flip';
case 5:
// 8888888888
// 88 88
// 88
return '-rotate 90 -flop';
case 6:
// 88
// 88 88
// 8888888888
return '-rotate 90';
case 7:
// 88
// 88 88
// 8888888888
return '-rotate "-90" -flop';
case 8:
// 8888888888
// 88 88
// 88
return '-rotate "-90"';
}
}
}
class ImagePNG extends ImageBase {

12
post.php
View File

@ -455,8 +455,16 @@ if (isset($_POST['delete'])) {
$exif = exif_read_data($upload);
$gm = in_array($config['thumb_method'], array('gm', 'gm+gifsicle'));
if (isset($exif['Orientation']) && $exif['Orientation'] != 1) {
if($error = shell_exec_error(($gm ? 'gm ' : '') . 'convert ' .
escapeshellarg($upload) . ' -auto-orient ' . escapeshellarg($upload)))
if ($config['convert_manual_orient']) {
$error = shell_exec_error(($gm ? 'gm ' : '') . 'convert ' .
escapeshellarg($upload) . ' ' .
ImageConvert::jpeg_exif_orientation(false, $exif) . ' +profile "*" ' .
escapeshellarg($upload));
} else {
$error = shell_exec_error(($gm ? 'gm ' : '') . 'convert ' .
escapeshellarg($upload) . ' -auto-orient ' . escapeshellarg($upload));
}
if ($error)
error('Could not auto-orient image!', null, $error);
$size = @getimagesize($upload);
}