From ced34cb15e095836767971aa4d27b141fb1d7ec9 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Sat, 18 Oct 2014 08:47:54 -0400
Subject: [PATCH] Merge pull request #230 from bytesatwork-xx/master
---
program/lib/Roundcube/rcube_image.php | 244 ++++++++++++++++++++++++++++++++++++++----------
1 files changed, 194 insertions(+), 50 deletions(-)
diff --git a/program/lib/Roundcube/rcube_image.php b/program/lib/Roundcube/rcube_image.php
index ad96842..d0d0c74 100644
--- a/program/lib/Roundcube/rcube_image.php
+++ b/program/lib/Roundcube/rcube_image.php
@@ -77,7 +77,8 @@
}
/**
- * Resize image to a given size
+ * Resize image to a given size. Use only to shrink an image.
+ * If an image is smaller than specified size it will be not resized.
*
* @param int $size Max width/height size
* @param string $filename Output filename
@@ -92,16 +93,19 @@
$convert = $rcube->config->get('im_convert_path', false);
$props = $this->props();
+ if (empty($props)) {
+ return false;
+ }
+
if (!$filename) {
$filename = $this->image_file;
}
// use Imagemagick
- if ($convert) {
- $p['out'] = $filename;
- $p['in'] = $this->image_file;
- $p['size'] = $size.'x'.$size;
- $type = $props['type'];
+ if ($convert || class_exists('Imagick', false)) {
+ $p['out'] = $filename;
+ $p['in'] = $this->image_file;
+ $type = $props['type'];
if (!$type && ($data = $this->identify())) {
$type = $data[0];
@@ -115,62 +119,146 @@
$type = 'jpg';
}
- $p += array('type' => $type, 'types' => "bmp,eps,gif,jp2,jpg,png,svg,tif", 'quality' => 75);
- $p['-opts'] = array('-resize' => $p['size'].'>');
+ // If only one dimension is greater than the limit convert doesn't
+ // work as expected, we need to calculate new dimensions
+ $scale = $size / max($props['width'], $props['height']);
- if (in_array($type, explode(',', $p['types']))) { // Valid type?
- $result = rcube::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace RGB -quality {quality} {-opts} {intype}:{in} {type}:{out}', $p);
+ // if file is smaller than the limit, we do nothing
+ // but copy original file to destination file
+ if ($scale >= 1 && $p['intype'] == $type) {
+ $result = ($this->image_file == $filename || copy($this->image_file, $filename)) ? '' : false;
+ }
+ else {
+ $valid_types = "bmp,eps,gif,jp2,jpg,png,svg,tif";
+
+ if (in_array($type, explode(',', $valid_types))) { // Valid type?
+ if ($scale >= 1) {
+ $width = $props['width'];
+ $height = $props['height'];
+ }
+ else {
+ $width = intval($props['width'] * $scale);
+ $height = intval($props['height'] * $scale);
+ }
+
+ // use ImageMagick in command line
+ if ($convert) {
+ $p += array(
+ 'type' => $type,
+ 'quality' => 75,
+ 'size' => $width . 'x' . $height,
+ );
+
+ $result = rcube::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace sRGB -strip'
+ . ' -quality {quality} -resize {size} {intype}:{in} {type}:{out}', $p);
+ }
+ // use PHP's Imagick class
+ else {
+ try {
+ $image = new Imagick($this->image_file);
+ $image = $image->flattenImages();
+
+ $image->setImageColorspace(Imagick::COLORSPACE_SRGB);
+ $image->setImageCompressionQuality(75);
+ $image->setImageFormat($type);
+ $image->stripImage();
+ $image->scaleImage($width, $height);
+
+ if ($image->writeImage($filename)) {
+ $result = '';
+ }
+ }
+ catch (Exception $e) {
+ rcube::raise_error($e, true, false);
+ }
+ }
+ }
}
if ($result === '') {
+ @chmod($filename, 0600);
return $type;
}
}
// use GD extension
- $gd_types = array(IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_PNG);
- if ($props['gd_type'] && in_array($props['gd_type'], $gd_types)) {
- if ($props['gd_type'] == IMAGETYPE_JPEG) {
+ if ($props['gd_type']) {
+ if ($props['gd_type'] == IMAGETYPE_JPEG && function_exists('imagecreatefromjpeg')) {
$image = imagecreatefromjpeg($this->image_file);
+ $type = 'jpg';
}
- elseif($props['gd_type'] == IMAGETYPE_GIF) {
+ else if($props['gd_type'] == IMAGETYPE_GIF && function_exists('imagecreatefromgif')) {
$image = imagecreatefromgif($this->image_file);
+ $type = 'gif';
}
- elseif($props['gd_type'] == IMAGETYPE_PNG) {
+ else if($props['gd_type'] == IMAGETYPE_PNG && function_exists('imagecreatefrompng')) {
$image = imagecreatefrompng($this->image_file);
+ $type = 'png';
+ }
+ else {
+ // @TODO: print error to the log?
+ return false;
}
- $scale = $size / max($props['width'], $props['height']);
- $width = $props['width'] * $scale;
- $height = $props['height'] * $scale;
-
- $new_image = imagecreatetruecolor($width, $height);
-
- // Fix transparency of gif/png image
- if ($props['gd_type'] != IMAGETYPE_JPEG) {
- imagealphablending($new_image, false);
- imagesavealpha($new_image, true);
- $transparent = imagecolorallocatealpha($new_image, 255, 255, 255, 127);
- imagefilledrectangle($new_image, 0, 0, $width, $height, $transparent);
+ if ($image === false) {
+ return false;
}
- imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $props['width'], $props['height']);
- $image = $new_image;
+ $scale = $size / max($props['width'], $props['height']);
- if ($props['gd_type'] == IMAGETYPE_JPEG) {
- $result = imagejpeg($image, $filename, 75);
- $type = 'jpg';
+ // Imagemagick resize is implemented in shrinking mode (see -resize argument above)
+ // we do the same here, if an image is smaller than specified size
+ // we do nothing but copy original file to destination file
+ if ($scale >= 1) {
+ $result = $this->image_file == $filename || copy($this->image_file, $filename);
}
- elseif($props['gd_type'] == IMAGETYPE_GIF) {
- $result = imagegif($image, $filename);
- $type = 'gid';
- }
- elseif($props['gd_type'] == IMAGETYPE_PNG) {
- $result = imagepng($image, $filename, 6, PNG_ALL_FILTERS);
- $type = 'png';
+ else {
+ $width = intval($props['width'] * $scale);
+ $height = intval($props['height'] * $scale);
+ $new_image = imagecreatetruecolor($width, $height);
+
+ // Fix transparency of gif/png image
+ if ($props['gd_type'] != IMAGETYPE_JPEG) {
+ imagealphablending($new_image, false);
+ imagesavealpha($new_image, true);
+ $transparent = imagecolorallocatealpha($new_image, 255, 255, 255, 127);
+ imagefilledrectangle($new_image, 0, 0, $width, $height, $transparent);
+ }
+
+ imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $props['width'], $props['height']);
+ $image = $new_image;
+
+ // fix rotation of image if EXIF data exists and specifies rotation (GD strips the EXIF data)
+ if ($this->image_file && function_exists('exif_read_data')) {
+ $exif = exif_read_data($this->image_file);
+ if ($exif && $exif['Orientation']) {
+ switch ($exif['Orientation']) {
+ case 3:
+ $image = imagerotate($image, 180, 0);
+ break;
+ case 6:
+ $image = imagerotate($image, -90, 0);
+ break;
+ case 8:
+ $image = imagerotate($image, 90, 0);
+ break;
+ }
+ }
+ }
+
+ if ($props['gd_type'] == IMAGETYPE_JPEG) {
+ $result = imagejpeg($image, $filename, 75);
+ }
+ elseif($props['gd_type'] == IMAGETYPE_GIF) {
+ $result = imagegif($image, $filename);
+ }
+ elseif($props['gd_type'] == IMAGETYPE_PNG) {
+ $result = imagepng($image, $filename, 6, PNG_ALL_FILTERS);
+ }
}
if ($result) {
+ @chmod($filename, 0600);
return $type;
}
}
@@ -202,32 +290,56 @@
}
}
- // use ImageMagick
+ // use ImageMagick in command line
if ($convert) {
$p['in'] = $this->image_file;
$p['out'] = $filename;
$p['type'] = self::$extensions[$type];
- $result = rcube::exec($convert . ' 2>&1 -colorspace RGB -quality 75 {in} {type}:{out}', $p);
+ $result = rcube::exec($convert . ' 2>&1 -colorspace sRGB -strip -quality 75 {in} {type}:{out}', $p);
if ($result === '') {
+ chmod($filename, 0600);
return true;
}
}
- // use GD extension (TIFF isn't supported)
- $props = $this->props();
- $gd_types = array(IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_PNG);
+ // use PHP's Imagick class
+ if (class_exists('Imagick', false)) {
+ try {
+ $image = new Imagick($this->image_file);
- if ($props['gd_type'] && in_array($props['gd_type'], $gd_types)) {
- if ($props['gd_type'] == IMAGETYPE_JPEG) {
+ $image->setImageColorspace(Imagick::COLORSPACE_SRGB);
+ $image->setImageCompressionQuality(75);
+ $image->setImageFormat(self::$extensions[$type]);
+ $image->stripImage();
+
+ if ($image->writeImage($filename)) {
+ @chmod($filename, 0600);
+ return true;
+ }
+ }
+ catch (Exception $e) {
+ rcube::raise_error($e, true, false);
+ }
+ }
+
+ // use GD extension (TIFF isn't supported)
+ $props = $this->props();
+
+ if ($props['gd_type']) {
+ if ($props['gd_type'] == IMAGETYPE_JPEG && function_exists('imagecreatefromjpeg')) {
$image = imagecreatefromjpeg($this->image_file);
}
- else if ($props['gd_type'] == IMAGETYPE_GIF) {
+ else if ($props['gd_type'] == IMAGETYPE_GIF && function_exists('imagecreatefromgif')) {
$image = imagecreatefromgif($this->image_file);
}
- else if ($props['gd_type'] == IMAGETYPE_PNG) {
+ else if ($props['gd_type'] == IMAGETYPE_PNG && function_exists('imagecreatefrompng')) {
$image = imagecreatefrompng($this->image_file);
+ }
+ else {
+ // @TODO: print error to the log?
+ return false;
}
if ($type == self::TYPE_JPG) {
@@ -239,6 +351,11 @@
else if ($type == self::TYPE_PNG) {
$result = imagepng($image, $filename, 6, PNG_ALL_FILTERS);
}
+
+ if ($result) {
+ @chmod($filename, 0600);
+ return true;
+ }
}
// @TODO: print error to the log?
@@ -246,12 +363,26 @@
}
/**
- * Identify command handler.
+ * Checks if image format conversion is supported
+ *
+ * @return boolean True if specified format can be converted to another format
+ */
+ public static function is_convertable($mimetype = null)
+ {
+ $rcube = rcube::get_instance();
+
+ // @TODO: check if specified mimetype is really supported
+ return class_exists('Imagick', false) || $rcube->config->get('im_convert_path');
+ }
+
+ /**
+ * ImageMagick based image properties read.
*/
private function identify()
{
$rcube = rcube::get_instance();
+ // use ImageMagick in command line
if ($cmd = $rcube->config->get('im_identify_path')) {
$args = array('in' => $this->image_file, 'format' => "%m %[fx:w] %[fx:h]");
$id = rcube::exec($cmd. ' 2>/dev/null -format {format} {in}', $args);
@@ -260,6 +391,19 @@
return explode(' ', strtolower($id));
}
}
- }
+ // use PHP's Imagick class
+ if (class_exists('Imagick', false)) {
+ try {
+ $image = new Imagick($this->image_file);
+
+ return array(
+ strtolower($image->getImageFormat()),
+ $image->getImageWidth(),
+ $image->getImageHeight(),
+ );
+ }
+ catch (Exception $e) {}
+ }
+ }
}
--
Gitblit v1.9.1