Merge pull request #1346 from FreshRSS/dev1.6.0

Merge 1.6.0-dev in master

7 files changed, 560 insertions, 385 deletions

diff --git a/app/Controllers/categoryController.php b/app/Controllers/categoryController.php
index e65c146de..922f92844 100644
--- a/app/Controllers/categoryController.php
+++ b/app/Controllers/categoryController.php
@@ -117,7 +117,6 @@ class FreshRSS_category_Controller extends Minz_ActionController {
 	public function deleteAction() {
 		$feedDAO = FreshRSS_Factory::createFeedDao();
 		$catDAO = new FreshRSS_CategoryDAO();
-		$default_category = $catDAO->getDefault();
 		$url_redirect = array('c' => 'subscription', 'a' => 'index');
 
 		if (Minz_Request::isPost()) {
@@ -128,11 +127,11 @@ class FreshRSS_category_Controller extends Minz_ActionController {
 				Minz_Request::bad(_t('feedback.sub.category.no_id'), $url_redirect);
 			}
 
-			if ($id === $default_category->id()) {
+			if ($id === FreshRSS_CategoryDAO::defaultCategoryId) {
 				Minz_Request::bad(_t('feedback.sub.category.not_delete_default'), $url_redirect);
 			}
 
-			if ($feedDAO->changeCategory($id, $default_category->id()) === false) {
+			if ($feedDAO->changeCategory($id, FreshRSS_CategoryDAO::defaultCategoryId) === false) {
 				Minz_Request::bad(_t('feedback.sub.category.error'), $url_redirect);
 			}
 
diff --git a/app/Controllers/configureController.php b/app/Controllers/configureController.php
index 147a2fe06..e73f106a6 100755
--- a/app/Controllers/configureController.php
+++ b/app/Controllers/configureController.php
@@ -139,7 +139,7 @@ class FreshRSS_configure_Controller extends Minz_ActionController {
 	 */
 	public function sharingAction() {
 		if (Minz_Request::isPost()) {
-			$params = Minz_Request::fetchGET();
+			$params = Minz_Request::fetchPOST();
 			FreshRSS_Context::$user_conf->sharing = $params['share'];
 			FreshRSS_Context::$user_conf->save();
 			invalidateHttpCache();
diff --git a/app/Controllers/feedController.php b/app/Controllers/feedController.php
index ffda1450d..c4115584a 100755
--- a/app/Controllers/feedController.php
+++ b/app/Controllers/feedController.php
@@ -26,6 +26,62 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		}
 	}
 
+	public static function addFeed($url, $title = '', $cat_id = 0, $new_cat_name = '', $http_auth = '') {
+		@set_time_limit(300);
+
+		$catDAO = new FreshRSS_CategoryDAO();
+
+		$cat = null;
+		if ($cat_id > 0) {
+			$cat = $catDAO->searchById($cat_id);
+		}
+		if ($cat == null && $new_cat_name != '') {
+			$cat = $catDAO->addCategory(array('name' => $new_cat_name));
+		}
+		if ($cat == null) {
+			$catDAO->checkDefault();
+		}
+		$cat_id = $cat == null ? FreshRSS_CategoryDAO::defaultCategoryId : $cat->id();
+
+		$feed = new FreshRSS_Feed($url);	//Throws FreshRSS_BadUrl_Exception
+		$feed->_httpAuth($http_auth);
+		$feed->load(true);	//Throws FreshRSS_Feed_Exception, Minz_FileNotExistException
+		$feed->_category($cat_id);
+
+		$feedDAO = FreshRSS_Factory::createFeedDao();
+		if ($feedDAO->searchByUrl($feed->url())) {
+			throw new FreshRSS_AlreadySubscribed_Exception($url, $feed->name());
+		}
+
+		// Call the extension hook
+		$feed = Minz_ExtensionManager::callHook('feed_before_insert', $feed);
+		if ($feed === null) {
+			throw new FreshRSS_FeedNotAdded_Exception($url, $feed->name());
+		}
+
+		$values = array(
+			'url' => $feed->url(),
+			'category' => $feed->category(),
+			'name' => $title != '' ? $title : $feed->name(),
+			'website' => $feed->website(),
+			'description' => $feed->description(),
+			'lastUpdate' => time(),
+			'httpAuth' => $feed->httpAuth(),
+		);
+
+		$id = $feedDAO->addFeed($values);
+		if (!$id) {
+			// There was an error in database... we cannot say what here.
+			throw new FreshRSS_FeedNotAdded_Exception($url, $feed->name());
+		}
+		$feed->_id($id);
+
+		// Ok, feed has been added in database. Now we have to refresh entries.
+		self::actualizeFeed($id, $url, false, null, true);
+
+		return $feed;
+	}
+
 	/**
 	 * This action subscribes to a feed.
 	 *
@@ -59,7 +115,6 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		}
 
 		$feedDAO = FreshRSS_Factory::createFeedDao();
-		$this->catDAO = new FreshRSS_CategoryDAO();
 		$url_redirect = array(
 			'c' => 'subscription',
 			'a' => 'index',
@@ -74,26 +129,13 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		}
 
 		if (Minz_Request::isPost()) {
-			@set_time_limit(300);
-
 			$cat = Minz_Request::param('category');
+			$new_cat_name = '';
 			if ($cat === 'nc') {
 				// User want to create a new category, new_category parameter
 				// must exist
 				$new_cat = Minz_Request::param('new_category');
-				if (empty($new_cat['name'])) {
-					$cat = false;
-				} else {
-					$cat = $this->catDAO->addCategory($new_cat);
-				}
-			}
-
-			if ($cat === false) {
-				// If category was not given or if creating new category failed,
-				// get the default category
-				$this->catDAO->checkDefault();
-				$def_cat = $this->catDAO->getDefault();
-				$cat = $def_cat->id();
+				$new_cat_name = isset($new_cat['name']) ? $new_cat['name'] : '';
 			}
 
 			// HTTP information are useful if feed is protected behind a
@@ -105,103 +147,24 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 				$http_auth = $user . ':' . $pass;
 			}
 
-			$transaction_started = false;
 			try {
-				$feed = new FreshRSS_Feed($url);
+				$feed = self::addFeed($url, '', $cat, $new_cat_name, $http_auth);
 			} catch (FreshRSS_BadUrl_Exception $e) {
 				// Given url was not a valid url!
 				Minz_Log::warning($e->getMessage());
 				Minz_Request::bad(_t('feedback.sub.feed.invalid_url', $url), $url_redirect);
-			}
-
-			$feed->_httpAuth($http_auth);
-
-			try {
-				$feed->load(true);
 			} catch (FreshRSS_Feed_Exception $e) {
 				// Something went bad (timeout, server not found, etc.)
 				Minz_Log::warning($e->getMessage());
-				Minz_Request::bad(
-					_t('feedback.sub.feed.internal_problem', _url('index', 'logs')),
-					$url_redirect
-				);
+				Minz_Request::bad(_t('feedback.sub.feed.internal_problem', _url('index', 'logs')), $url_redirect);
 			} catch (Minz_FileNotExistException $e) {
 				// Cache directory doesn't exist!
 				Minz_Log::error($e->getMessage());
-				Minz_Request::bad(
-					_t('feedback.sub.feed.internal_problem', _url('index', 'logs')),
-					$url_redirect
-				);
-			}
-
-			if ($feedDAO->searchByUrl($feed->url())) {
-				Minz_Request::bad(
-					_t('feedback.sub.feed.already_subscribed', $feed->name()),
-					$url_redirect
-				);
-			}
-
-			$feed->_category($cat);
-
-			// Call the extension hook
-			$name = $feed->name();
-			$feed = Minz_ExtensionManager::callHook('feed_before_insert', $feed);
-			if ($feed === null) {
-				Minz_Request::bad(_t('feedback.sub.feed.not_added', $name), $url_redirect);
-			}
-
-			$values = array(
-				'url' => $feed->url(),
-				'category' => $feed->category(),
-				'name' => $feed->name(),
-				'website' => $feed->website(),
-				'description' => $feed->description(),
-				'lastUpdate' => time(),
-				'httpAuth' => $feed->httpAuth(),
-			);
-
-			$id = $feedDAO->addFeed($values);
-			if (!$id) {
-				// There was an error in database... we cannot say what here.
-				Minz_Request::bad(_t('feedback.sub.feed.not_added', $feed->name()), $url_redirect);
-			}
-
-			// Ok, feed has been added in database. Now we have to refresh entries.
-			$feed->_id($id);
-			$feed->faviconPrepare();
-			//$feed->pubSubHubbubPrepare();	//TODO: prepare PubSubHubbub already when adding the feed
-
-			$is_read = FreshRSS_Context::$user_conf->mark_when['reception'] ? 1 : 0;
-
-			$entryDAO = FreshRSS_Factory::createEntryDao();
-			// We want chronological order and SimplePie uses reverse order.
-			$entries = array_reverse($feed->entries());
-
-			// Calculate date of oldest entries we accept in DB.
-			$nb_month_old = FreshRSS_Context::$user_conf->old_entries;
-			$date_min = time() - (3600 * 24 * 30 * $nb_month_old);
-
-			// Use a shared statement and a transaction to improve a LOT the
-			// performances.
-			$feedDAO->beginTransaction();
-			foreach ($entries as $entry) {
-				// Entries are added without any verification.
-				$entry->_feed($feed->id());
-				$entry->_id(min(time(), $entry->date(true)) . uSecString());
-				$entry->_isRead($is_read);
-
-				$entry = Minz_ExtensionManager::callHook('entry_before_insert', $entry);
-				if ($entry === null) {
-					// An extension has returned a null value, there is nothing to insert.
-					continue;
-				}
-
-				$values = $entry->toArray();
-				$entryDAO->addEntry($values);
-			}
-			$feedDAO->updateLastUpdate($feed->id());
-			if ($feedDAO->inTransaction()) {
-				$feedDAO->commit();
+				Minz_Request::bad(_t('feedback.sub.feed.internal_problem', _url('index', 'logs')), $url_redirect);
+			} catch (FreshRSS_AlreadySubscribed_Exception $e) {
+				Minz_Request::bad(_t('feedback.sub.feed.already_subscribed', $e->feedName()), $url_redirect);
+			} catch (FreshRSS_FeedNotAdded_Exception $e) {
+				Minz_Request::bad(_t('feedback.sub.feed.not_added', $e->feedName()), $url_redirect);
 			}
 
 			// Entries are in DB, we redirect to feed configuration page.
@@ -211,6 +174,7 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 			// GET request: we must ask confirmation to user before adding feed.
 			Minz_View::prependTitle(_t('sub.feed.title_add') . ' · ');
 
+			$this->catDAO = new FreshRSS_CategoryDAO();
 			$this->view->categories = $this->catDAO->listCategories(false);
 			$this->view->feed = new FreshRSS_Feed($url);
 			try {
@@ -261,38 +225,23 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		}
 	}
 
-	/**
-	 * This action actualizes entries from one or several feeds.
-	 *
-	 * Parameters are:
-	 *   - id (default: false): Feed ID
-	 *   - url (default: false): Feed URL
-	 *   - force (default: false)
-	 * If id and url are not specified, all the feeds are actualized. But if force is
-	 * false, process stops at 10 feeds to avoid time execution problem.
-	 */
-	public function actualizeAction($simplePiePush = null) {
+	public static function actualizeFeed($feed_id, $feed_url, $force, $simplePiePush = null, $isNewFeed = false) {
 		@set_time_limit(300);
 
 		$feedDAO = FreshRSS_Factory::createFeedDao();
 		$entryDAO = FreshRSS_Factory::createEntryDao();
 
-		Minz_Session::_param('actualize_feeds', false);
-		$id = Minz_Request::param('id');
-		$url = Minz_Request::param('url');
-		$force = Minz_Request::param('force');
-
 		// Create a list of feeds to actualize.
-		// If id is set and valid, corresponding feed is added to the list but
+		// If feed_id is set and valid, corresponding feed is added to the list but
 		// alone in order to automatize further process.
 		$feeds = array();
-		if ($id || $url) {
-			$feed = $id ? $feedDAO->searchById($id) : $feedDAO->searchByUrl($url);
+		if ($feed_id > 0 || $feed_url) {
+			$feed = $feed_id > 0 ? $feedDAO->searchById($feed_id) : $feedDAO->searchByUrl($feed_url);
 			if ($feed) {
 				$feeds[] = $feed;
 			}
 		} else {
-			$feeds = $feedDAO->listFeedsOrderUpdate(FreshRSS_Context::$user_conf->ttl_default);
+			$feeds = $feedDAO->listFeedsOrderUpdate(-1);
 		}
 
 		// Calculate date of oldest entries we accept in DB.
@@ -309,13 +258,29 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 			$url = $feed->url();	//For detection of HTTP 301
 
 			$pubSubHubbubEnabled = $pubsubhubbubEnabledGeneral && $feed->pubSubHubbubEnabled();
-			if ((!$simplePiePush) && (!$id) && $pubSubHubbubEnabled && ($feed->lastUpdate() > $pshbMinAge)) {
+			if ((!$simplePiePush) && (!$feed_id) && $pubSubHubbubEnabled && ($feed->lastUpdate() > $pshbMinAge)) {
 				//$text = 'Skip pull of feed using PubSubHubbub: ' . $url;
 				//Minz_Log::debug($text);
 				//file_put_contents(USERS_PATH . '/_/log_pshb.txt', date('c') . "\t" . $text . "\n", FILE_APPEND);
 				continue;	//When PubSubHubbub is used, do not pull refresh so often
 			}
 
+			$mtime = 0;
+			$ttl = $feed->ttl();
+			if ($ttl == -1) {
+				continue;	//Feed refresh is disabled
+			}
+			if ((!$simplePiePush) && (!$feed_id) &&
+				($feed->lastUpdate() + 10 >= time() - ($ttl == -2 ? FreshRSS_Context::$user_conf->ttl_default : $ttl))) {
+				//Too early to refresh from source, but check whether the feed was updated by another user
+				$mtime = $feed->cacheModifiedTime();
+				if ($feed->lastUpdate() + 10 >= $mtime) {
+					continue;	//Nothing newer from other users
+				}
+				//Minz_Log::debug($feed->url() . ' was updated at ' . date('c', $mtime) . ' by another user');
+				//Will take advantage of the newer cache
+			}
+
 			if (!$feed->lock()) {
 				Minz_Log::notice('Feed already being actualized: ' . $feed->url());
 				continue;
@@ -325,7 +290,7 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 				if ($simplePiePush) {
 					$feed->loadEntries($simplePiePush);	//Used by PubSubHubbub
 				} else {
-					$feed->load(false);
+					$feed->load(false, $isNewFeed);
 				}
 			} catch (FreshRSS_Feed_Exception $e) {
 				Minz_Log::warning($e->getMessage());
@@ -335,7 +300,9 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 			}
 
 			$feed_history = $feed->keepHistory();
-			if ($feed_history == -2) {
+			if ($isNewFeed) {
+				$feed_history = -1; //∞
+			} elseif ($feed_history == -2) {
 				// TODO: -2 must be a constant!
 				// -2 means we take the default value from configuration
 				$feed_history = FreshRSS_Context::$user_conf->keep_history_default;
@@ -346,7 +313,7 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 			if (count($entries) > 0) {
 				$newGuids = array();
 				foreach ($entries as $entry) {
-					$newGuids[] = $entry->guid();
+					$newGuids[] = safe_ascii($entry->guid());
 				}
 				// For this feed, check existing GUIDs already in database.
 				$existingHashForGuids = $entryDAO->listHashForFeedGuids($feed->id(), $newGuids);
@@ -375,7 +342,9 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 						// This entry should not be added considering configuration and date.
 						$oldGuids[] = $entry->guid();
 					} else {
-						if ($entry_date < $date_min) {
+						if ($isNewFeed) {
+							$id = min(time(), $entry_date) . uSecString();
+						} elseif ($entry_date < $date_min) {
 							$id = min(time(), $entry_date) . uSecString();
 							$entry->_isRead(true);	//Old article that was not in database. Probably an error, so mark as read
 						} else {
@@ -404,7 +373,7 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 						$entryDAO->addEntry($entry->toArray());
 					}
 				}
-				$entryDAO->updateLastSeen($feed->id(), $oldGuids);
+				$entryDAO->updateLastSeen($feed->id(), $oldGuids, $mtime);
 			}
 
 			if ($feed_history >= 0 && rand(0, 30) === 1) {
@@ -423,7 +392,7 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 				}
 			}
 
-			$feedDAO->updateLastUpdate($feed->id(), 0, $entryDAO->inTransaction());
+			$feedDAO->updateLastUpdate($feed->id(), false, $entryDAO->inTransaction(), $mtime);
 			if ($entryDAO->inTransaction()) {
 				$entryDAO->commit();
 			}
@@ -464,6 +433,26 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 				break;
 			}
 		}
+		return array($updated_feeds, reset($feeds));
+	}
+
+	/**
+	 * This action actualizes entries from one or several feeds.
+	 *
+	 * Parameters are:
+	 *   - id (default: false): Feed ID
+	 *   - url (default: false): Feed URL
+	 *   - force (default: false)
+	 * If id and url are not specified, all the feeds are actualized. But if force is
+	 * false, process stops at 10 feeds to avoid time execution problem.
+	 */
+	public function actualizeAction() {
+		Minz_Session::_param('actualize_feeds', false);
+		$id = Minz_Request::param('id');
+		$url = Minz_Request::param('url');
+		$force = Minz_Request::param('force');
+
+		list($updated_feeds, $feed) = self::actualizeFeed($id, $url, $force);
 
 		if (Minz_Request::param('ajax')) {
 			// Most of the time, ajax request is for only one feed. But since
@@ -479,7 +468,6 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		} else {
 			// Redirect to the main page with correct notification.
 			if ($updated_feeds === 1) {
-				$feed = reset($feeds);
 				Minz_Request::good(_t('feedback.sub.feed.actualized', $feed->name()), array(
 					'params' => array('get' => 'f_' . $feed->id())
 				));
@@ -492,6 +480,36 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		return $updated_feeds;
 	}
 
+	public static function renameFeed($feed_id, $feed_name) {
+		if ($feed_id <= 0 || $feed_name == '') {
+			return false;
+		}
+		$feedDAO = FreshRSS_Factory::createFeedDao();
+		return $feedDAO->updateFeed($feed_id, array('name' => $feed_name));
+	}
+
+	public static function moveFeed($feed_id, $cat_id, $new_cat_name = '') {
+		if ($feed_id <= 0 || ($cat_id <= 0 && $new_cat_name == '')) {
+			return false;
+		}
+
+		$catDAO = new FreshRSS_CategoryDAO();
+		if ($cat_id > 0) {
+			$cat = $catDAO->searchById($cat_id);
+			$cat_id = $cat == null ? 0 : $cat->id();
+		}
+		if ($cat_id <= 1 && $new_cat_name != '') {
+			$cat_id = $catDAO->addCategory(array('name' => $new_cat_name));
+		}
+		if ($cat_id <= 1) {
+			$catDAO->checkDefault();
+			$cat_id = FreshRSS_CategoryDAO::defaultCategoryId;
+		}
+
+		$feedDAO = FreshRSS_Factory::createFeedDao();
+		return $feedDAO->updateFeed($feed_id, array('category' => $cat_id));
+	}
+
 	/**
 	 * This action changes the category of a feed.
 	 *
@@ -512,20 +530,7 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		$feed_id = Minz_Request::param('f_id');
 		$cat_id = Minz_Request::param('c_id');
 
-		if ($cat_id === false) {
-			// If category was not given get the default one.
-			$catDAO = new FreshRSS_CategoryDAO();
-			$catDAO->checkDefault();
-			$def_cat = $catDAO->getDefault();
-			$cat_id = $def_cat->id();
-		}
-
-		$feedDAO = FreshRSS_Factory::createFeedDao();
-		$values = array('category' => $cat_id);
-
-		$feed = $feedDAO->searchById($feed_id);
-		if ($feed && ($feed->category() == $cat_id ||
-		              $feedDAO->updateFeed($feed_id, $values))) {
+		if (self::moveFeed($feed_id, $cat_id)) {
 			// TODO: return something useful
 		} else {
 			Minz_Log::warning('Cannot move feed `' . $feed_id . '` ' .
@@ -534,6 +539,21 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		}
 	}
 
+	public static function deleteFeed($feed_id) {
+		$feedDAO = FreshRSS_Factory::createFeedDao();
+		if ($feedDAO->deleteFeed($feed_id)) {
+			// TODO: Delete old favicon
+
+			// Remove related queries
+			FreshRSS_Context::$user_conf->queries = remove_query_by_get(
+				'f_' . $feed_id, FreshRSS_Context::$user_conf->queries);
+			FreshRSS_Context::$user_conf->save();
+
+			return true;
+		}
+		return false;
+	}
+
 	/**
 	 * This action deletes a feed.
 	 *
@@ -552,21 +572,13 @@ class FreshRSS_feed_Controller extends Minz_ActionController {
 		if (!$redirect_url) {
 			$redirect_url = array('c' => 'subscription', 'a' => 'index');
 		}
-
 		if (!Minz_Request::isPost()) {
 			Minz_Request::forward($redirect_url, true);
 		}
 
 		$id = Minz_Request::param('id');
-		$feedDAO = FreshRSS_Factory::createFeedDao();
-		if ($feedDAO->deleteFeed($id)) {
-			// TODO: Delete old favicon
-
-			// Remove related queries
-			FreshRSS_Context::$user_conf->queries = remove_query_by_get(
-				'f_' . $id, FreshRSS_Context::$user_conf->queries);
-			FreshRSS_Context::$user_conf->save();
 
+		if (self::deleteFeed($id)) {
 			Minz_Request::good(_t('feedback.sub.feed.deleted'), $redirect_url);
 		} else {
 			Minz_Request::bad(_t('feedback.sub.feed.error'), $redirect_url);
diff --git a/app/Controllers/importExportController.php b/app/Controllers/importExportController.php
index 60e467255..3ba91a243 100644
--- a/app/Controllers/importExportController.php
+++ b/app/Controllers/importExportController.php
@@ -29,32 +29,14 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 		Minz_View::prependTitle(_t('sub.import_export.title') . ' · ');
 	}
 
-	/**
-	 * This action handles import action.
-	 *
-	 * It must be reached by a POST request.
-	 *
-	 * Parameter is:
-	 *   - file (default: nothing!)
-	 * Available file types are: zip, json or xml.
-	 */
-	public function importAction() {
-		if (!Minz_Request::isPost()) {
-			Minz_Request::forward(array('c' => 'importExport', 'a' => 'index'), true);
-		}
-
-		$file = $_FILES['file'];
-		$status_file = $file['error'];
-
-		if ($status_file !== 0) {
-			Minz_Log::warning('File cannot be uploaded. Error code: ' . $status_file);
-			Minz_Request::bad(_t('feedback.import_export.file_cannot_be_uploaded'),
-			                  array('c' => 'importExport', 'a' => 'index'));
-		}
+	public function importFile($name, $path, $username = null) {
+		require_once(LIB_PATH . '/lib_opml.php');
 
-		@set_time_limit(300);
+		$this->catDAO = new FreshRSS_CategoryDAO($username);
+		$this->entryDAO = FreshRSS_Factory::createEntryDao($username);
+		$this->feedDAO = FreshRSS_Factory::createFeedDao($username);
 
-		$type_file = $this->guessFileType($file['name']);
+		$type_file = self::guessFileType($name);
 
 		$list_files = array(
 			'opml' => array(),
@@ -65,21 +47,17 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 		// We try to list all files according to their type
 		$list = array();
 		if ($type_file === 'zip' && extension_loaded('zip')) {
-			$zip = zip_open($file['tmp_name']);
-
+			$zip = zip_open($path);
 			if (!is_resource($zip)) {
 				// zip_open cannot open file: something is wrong
-				Minz_Log::warning('Zip archive cannot be imported. Error code: ' . $zip);
-				Minz_Request::bad(_t('feedback.import_export.zip_error'),
-				                  array('c' => 'importExport', 'a' => 'index'));
+				throw new FreshRSS_Zip_Exception($zip);
 			}
-
 			while (($zipfile = zip_read($zip)) !== false) {
 				if (!is_resource($zipfile)) {
 					// zip_entry() can also return an error code!
-					Minz_Log::warning('Zip file cannot be imported. Error code: ' . $zipfile);
+					throw new FreshRSS_Zip_Exception($zipfile);
 				} else {
-					$type_zipfile = $this->guessFileType(zip_entry_name($zipfile));
+					$type_zipfile = self::guessFileType(zip_entry_name($zipfile));
 					if ($type_file !== 'unknown') {
 						$list_files[$type_zipfile][] = zip_entry_read(
 							$zipfile,
@@ -88,29 +66,88 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 					}
 				}
 			}
-
 			zip_close($zip);
 		} elseif ($type_file === 'zip') {
-			// Zip extension is not loaded
-			Minz_Request::bad(_t('feedback.import_export.no_zip_extension'),
-			                  array('c' => 'importExport', 'a' => 'index'));
+			// ZIP extension is not loaded
+			throw new FreshRSS_ZipMissing_Exception();
 		} elseif ($type_file !== 'unknown') {
-			$list_files[$type_file][] = file_get_contents($file['tmp_name']);
+			$list_files[$type_file][] = file_get_contents($path);
 		}
 
 		// Import file contents.
 		// OPML first(so categories and feeds are imported)
 		// Starred articles then so the "favourite" status is already set
 		// And finally all other files.
-		$error = false;
+		$ok = true;
 		foreach ($list_files['opml'] as $opml_file) {
-			$error = $this->importOpml($opml_file);
+			if (!$this->importOpml($opml_file)) {
+				$ok = false;
+				if (FreshRSS_Context::$isCli) {
+					fwrite(STDERR, 'FreshRSS error during OPML import' . "\n");
+				} else {
+					Minz_Log::warning('Error during OPML import');
+				}
+			}
 		}
 		foreach ($list_files['json_starred'] as $article_file) {
-			$error = $this->importJson($article_file, true);
+			if (!$this->importJson($article_file, true)) {
+				$ok = false;
+				if (FreshRSS_Context::$isCli) {
+					fwrite(STDERR, 'FreshRSS error during JSON stars import' . "\n");
+				} else {
+					Minz_Log::warning('Error during JSON stars import');
+				}
+			}
 		}
 		foreach ($list_files['json_feed'] as $article_file) {
-			$error = $this->importJson($article_file);
+			if (!$this->importJson($article_file)) {
+				$ok = false;
+				if (FreshRSS_Context::$isCli) {
+					fwrite(STDERR, 'FreshRSS error during JSON feeds import' . "\n");
+				} else {
+					Minz_Log::warning('Error during JSON feeds import');
+				}
+			}
+		}
+
+		return $ok;
+	}
+
+	/**
+	 * This action handles import action.
+	 *
+	 * It must be reached by a POST request.
+	 *
+	 * Parameter is:
+	 *   - file (default: nothing!)
+	 * Available file types are: zip, json or xml.
+	 */
+	public function importAction() {
+		if (!Minz_Request::isPost()) {
+			Minz_Request::forward(array('c' => 'importExport', 'a' => 'index'), true);
+		}
+
+		$file = $_FILES['file'];
+		$status_file = $file['error'];
+
+		if ($status_file !== 0) {
+			Minz_Log::warning('File cannot be uploaded. Error code: ' . $status_file);
+			Minz_Request::bad(_t('feedback.import_export.file_cannot_be_uploaded'),
+			                  array('c' => 'importExport', 'a' => 'index'));
+		}
+
+		@set_time_limit(300);
+
+		$error = false;
+		try {
+			$error = !$this->importFile($file['name'], $file['tmp_name']);
+		} catch (FreshRSS_ZipMissing_Exception $zme) {
+			Minz_Request::bad(_t('feedback.import_export.no_zip_extension'),
+				array('c' => 'importExport', 'a' => 'index'));
+		} catch (FreshRSS_Zip_Exception $ze) {
+			Minz_Log::warning('ZIP archive cannot be imported. Error code: ' . $ze->zipErrorCode());
+			Minz_Request::bad(_t('feedback.import_export.zip_error'),
+				array('c' => 'importExport', 'a' => 'index'));
 		}
 
 		// And finally, we get import status and redirect to the home page
@@ -126,7 +163,7 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 * Itis a *very* basic guess file type function. Only based on filename.
 	 * That's could be improved but should be enough for what we have to do.
 	 */
-	private function guessFileType($filename) {
+	private static function guessFileType($filename) {
 		if (substr_compare($filename, '.zip', -4) === 0) {
 			return 'zip';
 		} elseif (substr_compare($filename, '.opml', -5) === 0 ||
@@ -146,15 +183,19 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 * This method parses and imports an OPML file.
 	 *
 	 * @param string $opml_file the OPML file content.
-	 * @return boolean true if an error occured, false else.
+	 * @return boolean false if an error occured, true otherwise.
 	 */
 	private function importOpml($opml_file) {
 		$opml_array = array();
 		try {
 			$opml_array = libopml_parse_string($opml_file, false);
 		} catch (LibOPML_Exception $e) {
-			Minz_Log::warning($e->getMessage());
-			return true;
+			if (FreshRSS_Context::$isCli) {
+				fwrite(STDERR, 'FreshRSS error during OPML parsing: ' . $e->getMessage() . "\n");
+			} else {
+				Minz_Log::warning($e->getMessage());
+			}
+			return false;
 		}
 
 		$this->catDAO->checkDefault();
@@ -167,51 +208,49 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 *
 	 * @param array $opml_elements an OPML element (body or outline).
 	 * @param string $parent_cat the name of the parent category.
-	 * @return boolean true if an error occured, false else.
+	 * @return boolean false if an error occured, true otherwise.
 	 */
 	private function addOpmlElements($opml_elements, $parent_cat = null) {
-		$error = false;
+		$ok = true;
 
 		$nb_feeds = count($this->feedDAO->listFeeds());
 		$nb_cats = count($this->catDAO->listCategories(false));
 		$limits = FreshRSS_Context::$system_conf->limits;
 
 		foreach ($opml_elements as $elt) {
-			$is_error = false;
 			if (isset($elt['xmlUrl'])) {
 				// If xmlUrl exists, it means it is a feed
-				if ($nb_feeds >= $limits['max_feeds']) {
+				if (FreshRSS_Context::$isCli && $nb_feeds >= $limits['max_feeds']) {
 					Minz_Log::warning(_t('feedback.sub.feed.over_max',
-					                  $limits['max_feeds']));
-					$is_error = true;
+									  $limits['max_feeds']));
+					$ok = false;
 					continue;
 				}
 
-				$is_error = $this->addFeedOpml($elt, $parent_cat);
-				if (!$is_error) {
-					$nb_feeds += 1;
+				if ($this->addFeedOpml($elt, $parent_cat)) {
+					$nb_feeds++;
+				} else {
+					$ok = false;
 				}
 			} else {
 				// No xmlUrl? It should be a category!
 				$limit_reached = ($nb_cats >= $limits['max_categories']);
-				if ($limit_reached) {
+				if (!FreshRSS_Context::$isCli && $limit_reached) {
 					Minz_Log::warning(_t('feedback.sub.category.over_max',
-					                  $limits['max_categories']));
+									  $limits['max_categories']));
+					$ok = false;
+					continue;
 				}
 
-				$is_error = $this->addCategoryOpml($elt, $parent_cat, $limit_reached);
-				if (!$is_error) {
-					$nb_cats += 1;
+				if ($this->addCategoryOpml($elt, $parent_cat, $limit_reached)) {
+					$nb_cats++;
+				} else {
+					$ok = false;
 				}
 			}
-
-			if (!$error && $is_error) {
-				// oops: there is at least one error!
-				$error = $is_error;
-			}
 		}
 
-		return $error;
+		return $ok;
 	}
 
 	/**
@@ -219,21 +258,23 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 *
 	 * @param array $feed_elt an OPML element (must be a feed element).
 	 * @param string $parent_cat the name of the parent category.
-	 * @return boolean true if an error occured, false else.
+	 * @return boolean false if an error occured, true otherwise.
 	 */
 	private function addFeedOpml($feed_elt, $parent_cat) {
-		$default_cat = $this->catDAO->getDefault();
-		if (is_null($parent_cat)) {
+		if ($parent_cat == null) {
 			// This feed has no parent category so we get the default one
+			$this->catDAO->checkDefault();
+			$default_cat = $this->catDAO->getDefault();
 			$parent_cat = $default_cat->name();
 		}
 
 		$cat = $this->catDAO->searchByName($parent_cat);
-		if (is_null($cat)) {
+		if ($cat == null) {
 			// If there is not $cat, it means parent category does not exist in
 			// database.
 			// If it happens, take the default category.
-			$cat = $default_cat;
+			$this->catDAO->checkDefault();
+			$cat = $this->catDAO->getDefault();
 		}
 
 		// We get different useful information
@@ -259,7 +300,7 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 
 			// Call the extension hook
 			$feed = Minz_ExtensionManager::callHook('feed_before_insert', $feed);
-			if (!is_null($feed)) {
+			if ($feed != null) {
 				// addFeedObject checks if feed is already in DB so nothing else to
 				// check here
 				$id = $this->feedDAO->addFeedObject($feed);
@@ -268,11 +309,23 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 				$error = true;
 			}
 		} catch (FreshRSS_Feed_Exception $e) {
-			Minz_Log::warning($e->getMessage());
+			if (FreshRSS_Context::$isCli) {
+				fwrite(STDERR, 'FreshRSS error during OPML feed import: ' . $e->getMessage() . "\n");
+			} else {
+				Minz_Log::warning($e->getMessage());
+			}
 			$error = true;
 		}
 
-		return $error;
+		if ($error) {
+			if (FreshRSS_Context::$isCli) {
+				fwrite(STDERR, 'FreshRSS error during OPML feed import from URL: ' . $url . ' in category ' . $cat->id() . "\n");
+			} else {
+				Minz_Log::warning('Error during OPML feed import from URL: ' . $url . ' in category ' . $cat->id());
+			}
+		}
+
+		return !$error;
 	}
 
 	/**
@@ -282,29 +335,34 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 * @param string $parent_cat the name of the parent category.
 	 * @param boolean $cat_limit_reached indicates if category limit has been reached.
 	 *                if yes, category is not added (but we try for feeds!)
-	 * @return boolean true if an error occured, false else.
+	 * @return boolean false if an error occured, true otherwise.
 	 */
 	private function addCategoryOpml($cat_elt, $parent_cat, $cat_limit_reached) {
 		// Create a new Category object
-		$cat = new FreshRSS_Category(Minz_Helper::htmlspecialchars_utf8($cat_elt['text']));
+		$catName = Minz_Helper::htmlspecialchars_utf8($cat_elt['text']);
+		$cat = new FreshRSS_Category($catName);
 
 		$error = true;
-		if (!$cat_limit_reached) {
+		if (FreshRSS_Context::$isCli || !$cat_limit_reached) {
 			$id = $this->catDAO->addCategoryObject($cat);
 			$error = ($id === false);
 		}
+		if ($error) {
+			if (FreshRSS_Context::$isCli) {
+				fwrite(STDERR, 'FreshRSS error during OPML category import from URL: ' . $catName . "\n");
+			} else {
+				Minz_Log::warning('Error during OPML category import from URL: ' . $catName);
+			}
+		}
 
 		if (isset($cat_elt['@outlines'])) {
 			// Our cat_elt contains more categories or more feeds, so we
 			// add them recursively.
 			// Note: FreshRSS does not support yet category arborescence
-			$res = $this->addOpmlElements($cat_elt['@outlines'], $cat->name());
-			if (!$error && $res) {
-				$error = true;
-			}
+			$error &= !$this->addOpmlElements($cat_elt['@outlines'], $catName);
 		}
 
-		return $error;
+		return !$error;
 	}
 
 	/**
@@ -312,13 +370,17 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 *
 	 * @param string $article_file the JSON file content.
 	 * @param boolean $starred true if articles from the file must be starred.
-	 * @return boolean true if an error occured, false else.
+	 * @return boolean false if an error occured, true otherwise.
 	 */
 	private function importJson($article_file, $starred = false) {
 		$article_object = json_decode($article_file, true);
-		if (is_null($article_object)) {
-			Minz_Log::warning('Try to import a non-JSON file');
-			return true;
+		if ($article_object == null) {
+			if (FreshRSS_Context::$isCli) {
+				fwrite(STDERR, 'FreshRSS error trying to import a non-JSON file' . "\n");
+			} else {
+				Minz_Log::warning('Try to import a non-JSON file');
+			}
+			return false;
 		}
 
 		$is_read = FreshRSS_Context::$user_conf->mark_when['reception'] ? 1 : 0;
@@ -337,29 +399,36 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 			$feed = new FreshRSS_Feed($item['origin'][$key]);
 			$feed = $this->feedDAO->searchByUrl($feed->url());
 
-			if (is_null($feed)) {
+			if ($feed == null) {
 				// Feed does not exist in DB,we should to try to add it.
-				if ($nb_feeds >= $limits['max_feeds']) {
+				if ((!FreshRSS_Context::$isCli) && ($nb_feeds >= $limits['max_feeds'])) {
 					// Oops, no more place!
 					Minz_Log::warning(_t('feedback.sub.feed.over_max', $limits['max_feeds']));
 				} else {
 					$feed = $this->addFeedJson($item['origin'], $google_compliant);
 				}
 
-				if (is_null($feed)) {
+				if ($feed == null) {
 					// Still null? It means something went wrong.
 					$error = true;
 				} else {
-					// Nice! Increase the counter.
-					$nb_feeds += 1;
+					$nb_feeds++;
 				}
 			}
 
-			if (!is_null($feed)) {
+			if ($feed != null) {
 				$article_to_feed[$item['id']] = $feed->id();
 			}
 		}
 
+		$newGuids = array();
+		foreach ($article_object['items'] as $item) {
+			$newGuids[] = safe_ascii($item['id']);
+		}
+		// For this feed, check existing GUIDs already in database.
+		$existingHashForGuids = $this->entryDAO->listHashForFeedGuids($feed->id(), $newGuids);
+		unset($newGuids);
+
 		// Then, articles are imported.
 		$this->entryDAO->beginTransaction();
 		foreach ($article_object['items'] as $item) {
@@ -376,7 +445,7 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 			if ($google_compliant) {
 				// Remove tags containing "/state/com.google" which are useless.
 				$tags = array_filter($tags, function($var) {
-					return strpos($var, '/state/com.google') === false;
+					return strpos($var, '/state/com.google') !== false;
 				});
 			}
 
@@ -389,13 +458,17 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 			$entry->_tags($tags);
 
 			$entry = Minz_ExtensionManager::callHook('entry_before_insert', $entry);
-			if (is_null($entry)) {
+			if ($entry == null) {
 				// An extension has returned a null value, there is nothing to insert.
 				continue;
 			}
 
 			$values = $entry->toArray();
-			$id = $this->entryDAO->addEntry($values);
+			if (isset($existingHashForGuids[$entry->guid()])) {
+				$id = $this->entryDAO->updateEntry($values);
+			} else {
+				$id = $this->entryDAO->addEntry($values);
+			}
 
 			if (!$error && ($id === false)) {
 				$error = true;
@@ -403,7 +476,7 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 		}
 		$this->entryDAO->commit();
 
-		return $error;
+		return !$error;
 	}
 
 	/**
@@ -415,8 +488,6 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 *         else null.
 	 */
 	private function addFeedJson($origin, $google_compliant) {
-		$default_cat = $this->catDAO->getDefault();
-
 		$return = null;
 		$key = $google_compliant ? 'htmlUrl' : 'feedUrl';
 		$url = $origin[$key];
@@ -426,13 +497,13 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 		try {
 			// Create a Feed object and add it in database.
 			$feed = new FreshRSS_Feed($url);
-			$feed->_category($default_cat->id());
+			$feed->_category(FreshRSS_CategoryDAO::defaultCategoryId);
 			$feed->_name($name);
 			$feed->_website($website);
 
 			// Call the extension hook
 			$feed = Minz_ExtensionManager::callHook('feed_before_insert', $feed);
-			if (!is_null($feed)) {
+			if ($feed != null) {
 				// addFeedObject checks if feed is already in DB so nothing else to
 				// check here.
 				$id = $this->feedDAO->addFeedObject($feed);
@@ -443,67 +514,98 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 				}
 			}
 		} catch (FreshRSS_Feed_Exception $e) {
-			Minz_Log::warning($e->getMessage());
+			if (FreshRSS_Context::$isCli) {
+				fwrite(STDERR, 'FreshRSS error during JSON feed import: ' . $e->getMessage() . "\n");
+			} else {
+				Minz_Log::warning($e->getMessage());
+			}
 		}
 
 		return $return;
 	}
 
-	/**
-	 * This action handles export action.
-	 *
-	 * This action must be reached by a POST request.
-	 *
-	 * Parameters are:
-	 *   - export_opml (default: false)
-	 *   - export_starred (default: false)
-	 *   - export_feeds (default: array()) a list of feed ids
-	 */
-	public function exportAction() {
-		if (!Minz_Request::isPost()) {
-			Minz_Request::forward(array('c' => 'importExport', 'a' => 'index'), true);
-		}
+	public function exportFile($export_opml = true, $export_starred = false, $export_feeds = array(), $maxFeedEntries = 50, $username = null) {
+		require_once(LIB_PATH . '/lib_opml.php');
 
-		$this->view->_useLayout(false);
+		$this->catDAO = new FreshRSS_CategoryDAO($username);
+		$this->entryDAO = FreshRSS_Factory::createEntryDao($username);
+		$this->feedDAO = FreshRSS_Factory::createFeedDao($username);
+
+		if ($export_feeds === true) {
+			//All feeds
+			$export_feeds = $this->feedDAO->listFeedsIds();
+		}
+		if (!is_array($export_feeds)) {
+			$export_feeds = array();
+		}
 
-		$export_opml = Minz_Request::param('export_opml', false);
-		$export_starred = Minz_Request::param('export_starred', false);
-		$export_feeds = Minz_Request::param('export_feeds', array());
+		$day = date('Y-m-d');
 
 		$export_files = array();
 		if ($export_opml) {
-			$export_files['feeds.opml'] = $this->generateOpml();
+			$export_files["feeds_${day}.opml.xml"] = $this->generateOpml();
 		}
 
 		if ($export_starred) {
-			$export_files['starred.json'] = $this->generateEntries('starred');
+			$export_files["starred_${day}.json"] = $this->generateEntries('starred');
 		}
 
 		foreach ($export_feeds as $feed_id) {
 			$feed = $this->feedDAO->searchById($feed_id);
 			if ($feed) {
-				$filename = 'feed_' . $feed->category() . '_'
+				$filename = "feed_${day}_" . $feed->category() . '_'
 				          . $feed->id() . '.json';
-				$export_files[$filename] = $this->generateEntries('feed', $feed);
+				$export_files[$filename] = $this->generateEntries('feed', $feed, $maxFeedEntries);
 			}
 		}
 
 		$nb_files = count($export_files);
 		if ($nb_files > 1) {
-			// If there are more than 1 file to export, we need a zip archive.
+			// If there are more than 1 file to export, we need a ZIP archive.
 			try {
-				$this->exportZip($export_files);
+				$this->sendZip($export_files);
 			} catch (Exception $e) {
-				# Oops, there is no Zip extension!
-				Minz_Request::bad(_t('feedback.import_export.export_no_zip_extension'),
-				                  array('c' => 'importExport', 'a' => 'index'));
+				throw new FreshRSS_ZipMissing_Exception($e);
 			}
 		} elseif ($nb_files === 1) {
 			// Only one file? Guess its type and export it.
 			$filename = key($export_files);
-			$type = $this->guessFileType($filename);
-			$this->exportFile('freshrss_' . $filename, $export_files[$filename], $type);
-		} else {
+			$type = self::guessFileType($filename);
+			$this->sendFile('freshrss_' . $filename, $export_files[$filename], $type);
+		}
+		return $nb_files;
+	}
+
+	/**
+	 * This action handles export action.
+	 *
+	 * This action must be reached by a POST request.
+	 *
+	 * Parameters are:
+	 *   - export_opml (default: false)
+	 *   - export_starred (default: false)
+	 *   - export_feeds (default: array()) a list of feed ids
+	 */
+	public function exportAction() {
+		if (!Minz_Request::isPost()) {
+			Minz_Request::forward(array('c' => 'importExport', 'a' => 'index'), true);
+		}
+		$this->view->_useLayout(false);
+
+		$nb_files = 0;
+		try {
+			$nb_files = $this->exportFile(
+					Minz_Request::param('export_opml', false),
+					Minz_Request::param('export_starred', false),
+					Minz_Request::param('export_feeds', array())
+				);
+		} catch (FreshRSS_ZipMissing_Exception $zme) {
+			# Oops, there is no ZIP extension!
+			Minz_Request::bad(_t('feedback.import_export.export_no_zip_extension'),
+			                  array('c' => 'importExport', 'a' => 'index'));
+		}
+
+		if ($nb_files < 1) {
 			// Nothing to do...
 			Minz_Request::forward(array('c' => 'importExport', 'a' => 'index'), true);
 		}
@@ -532,7 +634,7 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 * @param FreshRSS_Feed $feed feed of which we want to get entries.
 	 * @return string the JSON file content.
 	 */
-	private function generateEntries($type, $feed = NULL) {
+	private function generateEntries($type, $feed = NULL, $maxFeedEntries = 50) {
 		$this->view->categories = $this->catDAO->listCategories();
 
 		if ($type == 'starred') {
@@ -542,12 +644,12 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 			$this->view->entries = $this->entryDAO->listWhere(
 				's', '', FreshRSS_Entry::STATE_ALL, 'ASC', $unread_fav['all']
 			);
-		} elseif ($type == 'feed' && !is_null($feed)) {
+		} elseif ($type === 'feed' && $feed != null) {
 			$this->view->list_title = _t('sub.import_export.feed_list', $feed->name());
 			$this->view->type = 'feed/' . $feed->id();
 			$this->view->entries = $this->entryDAO->listWhere(
 				'f', $feed->id(), FreshRSS_Entry::STATE_ALL, 'ASC',
-				FreshRSS_Context::$user_conf->posts_per_page
+				$maxFeedEntries
 			);
 			$this->view->feed = $feed;
 		}
@@ -561,7 +663,7 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 * @param array $files list of files where key is filename and value the content.
 	 * @throws Exception if Zip extension is not loaded.
 	 */
-	private function exportZip($files) {
+	private function sendZip($files) {
 		if (!extension_loaded('zip')) {
 			throw new Exception();
 		}
@@ -579,7 +681,8 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 		$zip->close();
 		header('Content-Type: application/zip');
 		header('Content-Length: ' . filesize($zip_file));
-		header('Content-Disposition: attachment; filename="freshrss_export.zip"');
+		$day = date('Y-m-d');
+		header('Content-Disposition: attachment; filename="freshrss_' . $day . '_export.zip"');
 		readfile($zip_file);
 		unlink($zip_file);
 	}
@@ -592,16 +695,16 @@ class FreshRSS_importExport_Controller extends Minz_ActionController {
 	 * @param string $type the file type (opml, json_feed or json_starred).
 	 *                     If equals to unknown, nothing happens.
 	 */
-	private function exportFile($filename, $content, $type) {
+	private function sendFile($filename, $content, $type) {
 		if ($type === 'unknown') {
 			return;
 		}
 
 		$content_type = '';
 		if ($type === 'opml') {
-			$content_type = "text/opml";
+			$content_type = 'application/xml';
 		} elseif ($type === 'json_feed' || $type === 'json_starred') {
-			$content_type = "text/json";
+			$content_type = 'application/json';
 		}
 
 		header('Content-Type: ' . $content_type . '; charset=utf-8');
diff --git a/app/Controllers/indexController.php b/app/Controllers/indexController.php
index 2332d225d..5ca147ff3 100755
--- a/app/Controllers/indexController.php
+++ b/app/Controllers/indexController.php
@@ -34,7 +34,9 @@ class FreshRSS_index_Controller extends Minz_ActionController {
 
 		$this->view->callbackBeforeContent = function($view) {
 			try {
+				FreshRSS_Context::$number++;	//+1 for pagination
 				$entries = FreshRSS_index_Controller::listEntriesByContext();
+				FreshRSS_Context::$number--;
 
 				$nb_entries = count($entries);
 				if ($nb_entries > FreshRSS_Context::$number) {
@@ -154,8 +156,14 @@ class FreshRSS_index_Controller extends Minz_ActionController {
 	 *   - order (default: conf->sort_order)
 	 *   - nb (default: conf->posts_per_page)
 	 *   - next (default: empty string)
+	 *   - hours (default: 0)
 	 */
 	private function updateContext() {
+		if (empty(FreshRSS_Context::$categories)) {
+			$catDAO = new FreshRSS_CategoryDAO();
+			FreshRSS_Context::$categories = $catDAO->listCategories();
+		}
+
 		// Update number of read / unread variables.
 		$entryDAO = FreshRSS_Factory::createEntryDao();
 		FreshRSS_Context::$total_starred = $entryDAO->countUnreadReadFavorites();
@@ -180,10 +188,14 @@ class FreshRSS_index_Controller extends Minz_ActionController {
 		FreshRSS_Context::$order = Minz_Request::param(
 			'order', FreshRSS_Context::$user_conf->sort_order
 		);
-		FreshRSS_Context::$number = Minz_Request::param(
-			'nb', FreshRSS_Context::$user_conf->posts_per_page
-		);
+		FreshRSS_Context::$number = intval(Minz_Request::param('nb', FreshRSS_Context::$user_conf->posts_per_page));
+		if (FreshRSS_Context::$number > FreshRSS_Context::$user_conf->max_posts_per_rss) {
+			FreshRSS_Context::$number = max(
+				FreshRSS_Context::$user_conf->max_posts_per_rss,
+				FreshRSS_Context::$user_conf->posts_per_page);
+		}
 		FreshRSS_Context::$first_id = Minz_Request::param('next', '');
+		FreshRSS_Context::$sinceHours = intval(Minz_Request::param('hours', 0));
 	}
 
 	/**
@@ -201,11 +213,31 @@ class FreshRSS_index_Controller extends Minz_ActionController {
 			$id = '';
 		}
 
-		return $entryDAO->listWhere(
+		$limit = FreshRSS_Context::$number;
+
+		$date_min = 0;
+		if (FreshRSS_Context::$sinceHours) {
+			$date_min = time() - (FreshRSS_Context::$sinceHours * 3600);
+			$limit = FreshRSS_Context::$user_conf->max_posts_per_rss;
+		}
+
+		$entries = $entryDAO->listWhere(
 			$type, $id, FreshRSS_Context::$state, FreshRSS_Context::$order,
-			FreshRSS_Context::$number + 1, FreshRSS_Context::$first_id,
-			FreshRSS_Context::$search
+			$limit, FreshRSS_Context::$first_id,
+			FreshRSS_Context::$search, $date_min
 		);
+
+		if (FreshRSS_Context::$sinceHours && (count($entries) < FreshRSS_Context::$user_conf->min_posts_per_rss)) {
+			$date_min = 0;
+			$limit = FreshRSS_Context::$user_conf->min_posts_per_rss;
+			$entries = $entryDAO->listWhere(
+				$type, $id, FreshRSS_Context::$state, FreshRSS_Context::$order,
+				$limit, FreshRSS_Context::$first_id,
+				FreshRSS_Context::$search, $date_min
+			);
+		}
+
+		return $entries;
 	}
 
 	/**
diff --git a/app/Controllers/statsController.php b/app/Controllers/statsController.php
index 4a597ae7d..5d1dee72c 100644
--- a/app/Controllers/statsController.php
+++ b/app/Controllers/statsController.php
@@ -18,6 +18,27 @@ class FreshRSS_stats_Controller extends Minz_ActionController {
 		Minz_View::prependTitle(_t('admin.stats.title') . ' · ');
 	}
 
+	private function convertToSerie($data) {
+		$serie = array();
+
+		foreach ($data as $key => $value) {
+			$serie[] = array($key, $value);
+		}
+
+		return $serie;
+	}
+
+	private function convertToPieSerie($data) {
+		$serie = array();
+
+		foreach ($data as $value) {
+			$value['data'] = array(array(0, (int) $value['data']));
+			$serie[] = $value;
+		}
+
+		return $serie;
+	}
+
 	/**
 	 * This action handles the statistic main page.
 	 *
@@ -33,10 +54,11 @@ class FreshRSS_stats_Controller extends Minz_ActionController {
 		$statsDAO = FreshRSS_Factory::createStatsDAO();
 		Minz_View::appendScript(Minz_Url::display('/scripts/flotr2.min.js?' . @filemtime(PUBLIC_PATH . '/scripts/flotr2.min.js')));
 		$this->view->repartition = $statsDAO->calculateEntryRepartition();
-		$this->view->count = $statsDAO->calculateEntryCount();
-		$this->view->average = $statsDAO->calculateEntryAverage();
-		$this->view->feedByCategory = $statsDAO->calculateFeedByCategory();
-		$this->view->entryByCategory = $statsDAO->calculateEntryByCategory();
+		$entryCount = $statsDAO->calculateEntryCount();
+		$this->view->count = $this->convertToSerie($entryCount);
+		$this->view->average = round(array_sum(array_values($entryCount)) / count($entryCount), 2);
+		$this->view->feedByCategory = $this->convertToPieSerie($statsDAO->calculateFeedByCategory());
+		$this->view->entryByCategory = $this->convertToPieSerie($statsDAO->calculateEntryByCategory());
 		$this->view->topFeed = $statsDAO->calculateTopFeed();
 	}
 
@@ -118,11 +140,11 @@ class FreshRSS_stats_Controller extends Minz_ActionController {
 		$this->view->days = $statsDAO->getDays();
 		$this->view->months = $statsDAO->getMonths();
 		$this->view->repartition = $statsDAO->calculateEntryRepartitionPerFeed($id);
-		$this->view->repartitionHour = $statsDAO->calculateEntryRepartitionPerFeedPerHour($id);
+		$this->view->repartitionHour = $this->convertToSerie($statsDAO->calculateEntryRepartitionPerFeedPerHour($id));
 		$this->view->averageHour = $statsDAO->calculateEntryAveragePerFeedPerHour($id);
-		$this->view->repartitionDayOfWeek = $statsDAO->calculateEntryRepartitionPerFeedPerDayOfWeek($id);
+		$this->view->repartitionDayOfWeek = $this->convertToSerie($statsDAO->calculateEntryRepartitionPerFeedPerDayOfWeek($id));
 		$this->view->averageDayOfWeek = $statsDAO->calculateEntryAveragePerFeedPerDayOfWeek($id);
-		$this->view->repartitionMonth = $statsDAO->calculateEntryRepartitionPerFeedPerMonth($id);
+		$this->view->repartitionMonth = $this->convertToSerie($statsDAO->calculateEntryRepartitionPerFeedPerMonth($id));
 		$this->view->averageMonth = $statsDAO->calculateEntryAveragePerFeedPerMonth($id);
 	}
 }
diff --git a/app/Controllers/userController.php b/app/Controllers/userController.php
index 0521bc008..9d6ae18e6 100644
--- a/app/Controllers/userController.php
+++ b/app/Controllers/userController.php
@@ -24,6 +24,16 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 		}
 	}
 
+	public static function hashPassword($passwordPlain) {
+		if (!function_exists('password_hash')) {
+			include_once(LIB_PATH . '/password_compat.php');
+		}
+		$passwordHash = password_hash($passwordPlain, PASSWORD_BCRYPT, array('cost' => self::BCRYPT_COST));
+		$passwordPlain = '';
+		$passwordHash = preg_replace('/^\$2[xy]\$/', '\$2a\$', $passwordHash);	//Compatibility with bcrypt.js
+		return $passwordHash == '' ? '' : $passwordHash;
+	}
+
 	/**
 	 * This action displays the user profile page.
 	 */
@@ -41,12 +51,7 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 			if ($passwordPlain != '') {
 				Minz_Request::_param('newPasswordPlain');	//Discard plain-text password ASAP
 				$_POST['newPasswordPlain'] = '';
-				if (!function_exists('password_hash')) {
-					include_once(LIB_PATH . '/password_compat.php');
-				}
-				$passwordHash = password_hash($passwordPlain, PASSWORD_BCRYPT, array('cost' => self::BCRYPT_COST));
-				$passwordPlain = '';
-				$passwordHash = preg_replace('/^\$2[xy]\$/', '\$2a\$', $passwordHash);	//Compatibility with bcrypt.js
+				$passwordHash = self::hashPassword($passwordPlain);
 				$ok &= ($passwordHash != '');
 				FreshRSS_Context::$user_conf->passwordHash = $passwordHash;
 			}
@@ -54,12 +59,7 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 
 			$passwordPlain = Minz_Request::param('apiPasswordPlain', '', true);
 			if ($passwordPlain != '') {
-				if (!function_exists('password_hash')) {
-					include_once(LIB_PATH . '/password_compat.php');
-				}
-				$passwordHash = password_hash($passwordPlain, PASSWORD_BCRYPT, array('cost' => self::BCRYPT_COST));
-				$passwordPlain = '';
-				$passwordHash = preg_replace('/^\$2[xy]\$/', '\$2a\$', $passwordHash);	//Compatibility with bcrypt.js
+				$passwordHash = self::hashPassword($passwordPlain);
 				$ok &= ($passwordHash != '');
 				FreshRSS_Context::$user_conf->apiPasswordHash = $passwordHash;
 			}
@@ -99,6 +99,50 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 		$this->view->size_user = $entryDAO->size();
 	}
 
+	public static function createUser($new_user_name, $passwordPlain, $apiPasswordPlain, $userConfig = array(), $insertDefaultFeeds = true) {
+		if (!is_array($userConfig)) {
+			$userConfig = array();
+		}
+
+		$ok = ($new_user_name != '') && ctype_alnum($new_user_name);
+
+		if ($ok) {
+			$languages = Minz_Translate::availableLanguages();
+			if (empty($userConfig['language']) || !in_array($userConfig['language'], $languages)) {
+				$userConfig['language'] = 'en';
+			}
+
+			$ok &= !in_array(strtoupper($new_user_name), array_map('strtoupper', listUsers()));	//Not an existing user, case-insensitive
+
+			$configPath = join_path(DATA_PATH, 'users', $new_user_name, 'config.php');
+			$ok &= !file_exists($configPath);
+		}
+		if ($ok) {
+			$passwordHash = '';
+			if ($passwordPlain != '') {
+				$passwordHash = self::hashPassword($passwordPlain);
+				$ok &= ($passwordHash != '');
+			}
+
+			$apiPasswordHash = '';
+			if ($apiPasswordPlain != '') {
+				$apiPasswordHash = self::hashPassword($apiPasswordPlain);
+				$ok &= ($apiPasswordHash != '');
+			}
+		}
+		if ($ok) {
+			mkdir(join_path(DATA_PATH, 'users', $new_user_name));
+			$userConfig['passwordHash'] = $passwordHash;
+			$userConfig['apiPasswordHash'] = $apiPasswordHash;
+			$ok &= (file_put_contents($configPath, "<?php\n return " . var_export($userConfig, true) . ';') !== false);
+		}
+		if ($ok) {
+			$userDAO = new FreshRSS_UserDAO();
+			$ok &= $userDAO->createUser($new_user_name, $userConfig['language'], $insertDefaultFeeds);
+		}
+		return $ok;
+	}
+
 	/**
 	 * This action creates a new user.
 	 *
@@ -116,57 +160,13 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 				FreshRSS_Auth::hasAccess('admin') ||
 				!max_registrations_reached()
 		)) {
-			$db = FreshRSS_Context::$system_conf->db;
-			require_once(APP_PATH . '/SQL/install.sql.' . $db['type'] . '.php');
-
-			$new_user_language = Minz_Request::param('new_user_language', FreshRSS_Context::$user_conf->language);
-			$languages = Minz_Translate::availableLanguages();
-			if (!isset($languages[$new_user_language])) {
-				$new_user_language = FreshRSS_Context::$user_conf->language;
-			}
-
 			$new_user_name = Minz_Request::param('new_user_name');
-			$ok = ($new_user_name != '') && ctype_alnum($new_user_name);
-
-			if ($ok) {
-				$default_user = FreshRSS_Context::$system_conf->default_user;
-				$ok &= (strcasecmp($new_user_name, $default_user) !== 0);	//It is forbidden to alter the default user
-
-				$ok &= !in_array(strtoupper($new_user_name), array_map('strtoupper', listUsers()));	//Not an existing user, case-insensitive
+			$passwordPlain = Minz_Request::param('new_user_passwordPlain', '', true);
+			$new_user_language = Minz_Request::param('new_user_language', FreshRSS_Context::$user_conf->language);
 
-				$configPath = join_path(DATA_PATH, 'users', $new_user_name, 'config.php');
-				$ok &= !file_exists($configPath);
-			}
-			if ($ok) {
-				$passwordPlain = Minz_Request::param('new_user_passwordPlain', '', true);
-				$passwordHash = '';
-				if ($passwordPlain != '') {
-					Minz_Request::_param('new_user_passwordPlain');	//Discard plain-text password ASAP
-					$_POST['new_user_passwordPlain'] = '';
-					if (!function_exists('password_hash')) {
-						include_once(LIB_PATH . '/password_compat.php');
-					}
-					$passwordHash = password_hash($passwordPlain, PASSWORD_BCRYPT, array('cost' => self::BCRYPT_COST));
-					$passwordPlain = '';
-					$passwordHash = preg_replace('/^\$2[xy]\$/', '\$2a\$', $passwordHash);	//Compatibility with bcrypt.js
-					$ok &= ($passwordHash != '');
-				}
-				if (empty($passwordHash)) {
-					$passwordHash = '';
-				}
-			}
-			if ($ok) {
-				mkdir(join_path(DATA_PATH, 'users', $new_user_name));
-				$config_array = array(
-					'language' => $new_user_language,
-					'passwordHash' => $passwordHash,
-				);
-				$ok &= (file_put_contents($configPath, "<?php\n return " . var_export($config_array, true) . ';') !== false);
-			}
-			if ($ok) {
-				$userDAO = new FreshRSS_UserDAO();
-				$ok &= $userDAO->createUser($new_user_name);
-			}
+			$ok = self::createUser($new_user_name, $passwordPlain, '', array('language' => $new_user_language));
+			Minz_Request::_param('new_user_passwordPlain');	//Discard plain-text password ASAP
+			$_POST['new_user_passwordPlain'] = '';
 			invalidateHttpCache();
 
 			$notif = array(
@@ -183,6 +183,27 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 		Minz_Request::forward($redirect_url, true);
 	}
 
+	public static function deleteUser($username) {
+		$db = FreshRSS_Context::$system_conf->db;
+		require_once(APP_PATH . '/SQL/install.sql.' . $db['type'] . '.php');
+
+		$ok = ctype_alnum($username);
+		if ($ok) {
+			$default_user = FreshRSS_Context::$system_conf->default_user;
+			$ok &= (strcasecmp($username, $default_user) !== 0);	//It is forbidden to delete the default user
+		}
+		$user_data = join_path(DATA_PATH, 'users', $username);
+		if ($ok) {
+			$ok &= is_dir($user_data);
+		}
+		if ($ok) {
+			$userDAO = new FreshRSS_UserDAO();
+			$ok &= $userDAO->deleteUser($username);
+			$ok &= recursive_unlink($user_data);
+		}
+		return $ok;
+	}
+
 	/**
 	 * This action delete an existing user.
 	 *
@@ -204,16 +225,7 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 				FreshRSS_Auth::hasAccess('admin') ||
 				$self_deletion
 		)) {
-			$db = FreshRSS_Context::$system_conf->db;
-			require_once(APP_PATH . '/SQL/install.sql.' . $db['type'] . '.php');
-
-			$ok = ctype_alnum($username);
-			$user_data = join_path(DATA_PATH, 'users', $username);
-
-			if ($ok) {
-				$default_user = FreshRSS_Context::$system_conf->default_user;
-				$ok &= (strcasecmp($username, $default_user) !== 0);	//It is forbidden to delete the default user
-			}
+			$ok = true;
 			if ($ok && $self_deletion) {
 				// We check the password if it's a self-destruction
 				$nonce = Minz_Session::param('nonce');
@@ -225,12 +237,7 @@ class FreshRSS_user_Controller extends Minz_ActionController {
 				);
 			}
 			if ($ok) {
-				$ok &= is_dir($user_data);
-			}
-			if ($ok) {
-				$userDAO = new FreshRSS_UserDAO();
-				$ok &= $userDAO->deleteUser($username);
-				$ok &= recursive_unlink($user_data);
+				$ok &= self::deleteUser($username);
 			}
 			if ($ok && $self_deletion) {
 				FreshRSS_Auth::removeAccess();