2 files changed, 104 insertions, 0 deletions
diff --git a/lib/image.php b/lib/image.php
index 7c7ef2d90..51b31f6d7 100644
--- a/lib/image.php
+++ b/lib/image.php
@@ -39,6 +39,72 @@ class TidypicsImage extends ElggFile {
 	}
 
 	/**
+	 * Set the internal filenames
+	 * 
+	 * @warning container needs to be set first
+	 */
+	public function setOriginalFilename($originalName) {
+		$prefix = "image/" . $this->container_guid . "/";
+		$filestorename = strtolower(time() . $originalName);
+		$this->setFilename($prefix . $filestorename);
+		$this->originalfilename = $originalName;
+	}
+
+	/**
+	 * Save the uploaded image
+	 *
+	 * @warning filename needs to be set first
+	 * 
+	 * @param string $image
+	 */
+	public function saveImageFile($image) {
+		$this->open("write");
+		$this->write($image);
+		$this->close();
+	}
+
+	/**
+	 * Save the image thumbnails
+	 *
+	 * @warning container guid and filename must be set
+	 * 
+	 * @param string $imageLib
+	 */
+	public function saveThumbnails($imageLib) {
+		include_once dirname(__FILE__) . "/resize.php";
+		
+		$prefix = "image/" . $this->container_guid . "/";
+		$filename = $this->getFilename();
+		$filename = substr($filename, strrpos($filename, '/') + 1);
+		
+		if ($imageLib == 'ImageMagick') {
+			// ImageMagick command line
+			if (tp_create_im_cmdline_thumbnails($this, $prefix, $filename) != true) {
+				trigger_error('Tidypics warning: failed to create thumbnails - ImageMagick command line', E_USER_WARNING);
+			}
+		} else if ($imageLib == 'ImageMagickPHP') {
+			// imagick php extension
+			if (tp_create_imagick_thumbnails($this, $prefix, $filename) != true) {
+				trigger_error('Tidypics warning: failed to create thumbnails - ImageMagick PHP', E_USER_WARNING);
+			}
+		} else {
+			if (tp_create_gd_thumbnails($this, $prefix, $filename) != true) {
+				trigger_error('Tidypics warning: failed to create thumbnails - GD', E_USER_WARNING);
+			}
+		}
+	}
+
+	/**
+	 * Extract EXIF Data from image
+	 *
+	 * @warning image file must be saved first
+	 */
+	public function extractExifData() {
+		include_once dirname(__FILE__) . "/exif.php";
+		td_get_exif($this);
+	}
+	
+	/**
 	 * Has the photo been tagged with "in this photo" tags
 	 *
 	 * @return true/false
diff --git a/lib/upload.php b/lib/upload.php
new file mode 100644
index 000000000..a7dd7611d
--- /dev/null
+++ b/lib/upload.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * Helper library for working with uploads
+ */
+
+function tp_upload_check_format($mime) {
+	$accepted_formats = array(
+		'image/jpeg',
+		'image/png',
+		'image/gif',
+		'image/pjpeg',
+		'image/x-png',
+	);
+
+	if (!in_array($mime, $accepted_formats)) {
+		return false;
+	}
+	return true;
+}
+
+function tp_upload_memory_check($image_lib, $num_pixels) {
+	if ($image_lib !== 'GD') {
+		return true;
+	}
+
+	$mem_avail = ini_get('memory_limit');
+	$mem_avail = rtrim($mem_avail, 'M');
+	$mem_avail = $mem_avail * 1024 * 1024;
+	$mem_used = memory_get_usage();
+	$mem_required = ceil(5.35 * $num_pixels);
+
+	$mem_avail = $mem_avail - $mem_used - 2097152; // 2 MB buffer
+	if ($mem_required > $mem_avail) {
+		return false;
+	}
+
+	return true;
+}
+\ No newline at end of file