From 4ae5e52fda96489f74bc83b7d8973119e02558a5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?= <thomas.mueller@tmit.eu>
Date: Tue, 30 Jun 2015 11:14:59 +0200
Subject: [PATCH] Reuse Sabre\VObject\UUIDUtil to generate UUIDs

---
 lib/utils/properties.php | 35 +++++++++++---------
 lib/utils/uuid.php       | 71 ----------------------------------------
 2 files changed, 20 insertions(+), 86 deletions(-)
 delete mode 100644 lib/utils/uuid.php

diff --git a/lib/utils/properties.php b/lib/utils/properties.php
index 005e336d..e40c1ca7 100644
--- a/lib/utils/properties.php
+++ b/lib/utils/properties.php
@@ -23,6 +23,8 @@
 namespace OCA\Contacts\Utils;
 
 use OCA\Contacts\App;
+use OCA\Contacts\VObject\VCard;
+use Sabre\VObject\UUIDUtil;
 
 Properties::$l10n = \OCP\Util::getL10N('contacts');
 
@@ -39,7 +41,7 @@ Class Properties {
 	/**
 	 * @brief language object for calendar app
 	 *
-	 * @var OC_L10N
+	 * @var \OCP\IL10N
 	 */
 	public static $l10n;
 
@@ -207,9 +209,12 @@ Class Properties {
 		);
 	}
 
-	public static function generateUID($app = 'contacts') {
-		$uuid = new UUID();
-		return $uuid->get() . '@' . \OCP\Util::getServerHostName();
+	/**
+	 * @return string
+	 */
+	public static function generateUID() {
+		$uuid = UUIDUtil::getUUID();
+		return $uuid . '@' . \OCP\Util::getServerHostName();
 	}
 
 	/**
@@ -246,13 +251,13 @@ Class Properties {
 	 * If it is a valid object the old properties will first be purged
 	 * and the current properties indexed.
 	 *
-	 * @param string $contactid
-	 * @param \OCA\VObject\VCard|null $vcard
+	 * @param string $contactId
+	 * @param VCard|null $vCard
 	 */
-	public static function updateIndex($contactid, $vcard = null) {
-		self::purgeIndexes(array($contactid));
+	public static function updateIndex($contactId, $vCard = null) {
+		self::purgeIndexes(array($contactId));
 
-		if(is_null($vcard)) {
+		if(is_null($vCard)) {
 			return;
 		}
 
@@ -260,7 +265,7 @@ Class Properties {
 			self::$updateindexstmt = \OCP\DB::prepare( 'INSERT INTO `' . self::$indexTableName . '` '
 				. '(`userid`, `contactid`,`name`,`value`,`preferred`) VALUES(?,?,?,?,?)' );
 		}
-		foreach($vcard->children as $property) {
+		foreach($vCard->children as $property) {
 			if(!in_array($property->name, self::$indexProperties)) {
 				continue;
 			}
@@ -275,7 +280,7 @@ Class Properties {
 				$result = self::$updateindexstmt->execute(
 					array(
 						\OC::$server->getUserSession()->getUser()->getUId(),
-						$contactid,
+						$contactId,
 						$property->name,
 						substr($property->getValue(), 0, 254),
 						$preferred,
@@ -294,7 +299,7 @@ Class Properties {
 	}
 
 	public static function cacheThumbnail($backendName, $addressBookId, $contactId,
-		\OCP\Image $image = null, $vcard = null, $options = array()
+		\OCP\Image $image = null, $vCard = null, $options = array()
 	) {
 		$cache = \OC::$server->getCache();
 		$key = self::THUMBNAIL_PREFIX . $backendName . '::' . $addressBookId . '::' . $contactId;
@@ -320,12 +325,12 @@ Class Properties {
 		}
 
 		if (is_null($image)) {
-			if (is_null($vcard)) {
+			if (is_null($vCard)) {
 				$app = new App();
-				$vcard = $app->getContact($backendName, $addressBookId, $contactId);
+				$vCard = $app->getContact($backendName, $addressBookId, $contactId);
 			}
 			$image = new \OCP\Image();
-			if (!isset($vcard->PHOTO) || !$image->loadFromBase64((string)$vcard->PHOTO)) {
+			if (!isset($vCard->PHOTO) || !$image->loadFromBase64((string)$vCard->PHOTO)) {
 				return false;
 			}
 		}
diff --git a/lib/utils/uuid.php b/lib/utils/uuid.php
deleted file mode 100644
index 1c7473a0..00000000
--- a/lib/utils/uuid.php
+++ /dev/null
@@ -1,71 +0,0 @@
-<?php
-namespace OCA\Contacts\Utils;
-
-class UUID {
-
-	protected $urand;
-
-	public function __construct() {
-		$this->urand = @fopen ( '/dev/urandom', 'rb' );
-	}
-
-	/**
-	* @brief Generates a Universally Unique IDentifier, version 4.
-	*
-	* This function generates a truly random UUID. The built in CakePHP String::uuid() function
-	* is not cryptographically secure. You should uses this function instead.
-	* From http://php.net/manual/en/function.uniqid.php comments
-	*
-	* @see http://tools.ietf.org/html/rfc4122#section-4.4
-	* @see http://en.wikipedia.org/wiki/UUID
-	* @return string A UUID, made up of 32 hex digits and 4 hyphens.
-	*/
-	public function get() {
-
-		$prBits = false;
-		if (is_a($this, 'uuid')) {
-			if (is_resource($this->urand)) {
-				$prBits .= @fread($this->urand, 16);
-			}
-		}
-		if (!$prBits) {
-			$fp = @fopen('/dev/urandom', 'rb');
-			if ($fp !== false) {
-				$prBits .= @fread($fp, 16);
-				@fclose ( $fp );
-			} else {
-				// If /dev/urandom isn't available (eg: in non-unix systems), use mt_rand().
-				$prBits = "";
-				for($cnt = 0; $cnt < 16; $cnt ++) {
-					$prBits .= chr(mt_rand(0, 255));
-				}
-			}
-		}
-		$timeLow = bin2hex(substr($prBits, 0, 4));
-		$timeMid = bin2hex(substr($prBits, 4, 2));
-		$timeHiAndVersion = bin2hex(substr($prBits, 6, 2));
-		$clockSeqHiAndReserved = bin2hex(substr($prBits, 8, 2));
-		$node = bin2hex(substr($prBits, 10, 6));
-
-		/**
-		* Set the four most significant bits (bits 12 through 15) of the
-		* time_hi_and_version field to the 4-bit version number from
-		* Section 4.1.3.
-		* @see http://tools.ietf.org/html/rfc4122#section-4.1.3
-		*/
-		$timeHiAndVersion = hexdec($timeHiAndVersion);
-		$timeHiAndVersion = $timeHiAndVersion >> 4;
-		$timeHiAndVersion = $timeHiAndVersion | 0x4000;
-
-		/**
-		* Set the two most significant bits (bits 6 and 7) of the
-		* clock_seq_hi_and_reserved to zero and one, respectively.
-		*/
-		$clockSeqHiAndReserved = hexdec($clockSeqHiAndReserved);
-		$clockSeqHiAndReserved = $clockSeqHiAndReserved >> 2;
-		$clockSeqHiAndReserved = $clockSeqHiAndReserved | 0x8000;
-
-		return sprintf('%08s-%04s-%04x-%04x-%012s', $timeLow, $timeMid, $timeHiAndVersion, $clockSeqHiAndReserved, $node);
-	}
-
-}
\ No newline at end of file