From 7ae2d9749cc4f3da11bbcffb19906adf144476c4 Mon Sep 17 00:00:00 2001
From: Diego Najar <dignajar@gmail.com>
Date: Fri, 11 Aug 2017 21:22:26 +0200
Subject: [PATCH] External Cover Image

---
 bl-kernel/admin/controllers/new-page.php |  5 ++---
 bl-kernel/admin/views/edit-page.php      | 18 +++++++++++++++++-
 bl-kernel/admin/views/new-page.php       |  9 +++++++++
 bl-kernel/functions.php                  | 20 ++++++++++++++++----
 bl-kernel/page.class.php                 | 12 +++++++++---
 5 files changed, 53 insertions(+), 11 deletions(-)

diff --git a/bl-kernel/admin/controllers/new-page.php b/bl-kernel/admin/controllers/new-page.php
index 528372cc..e5395b93 100644
--- a/bl-kernel/admin/controllers/new-page.php
+++ b/bl-kernel/admin/controllers/new-page.php
@@ -16,9 +16,8 @@
 // POST Method
 // ============================================================================
 
-if( $_SERVER['REQUEST_METHOD'] == 'POST' )
-{
-	if( createPage($_POST)!==false ) {
+if( $_SERVER['REQUEST_METHOD'] == 'POST' ) {
+	if (createPage($_POST)!==false) {
 		Alert::set( $Language->g('Page added successfully') );
 	}
 
diff --git a/bl-kernel/admin/views/edit-page.php b/bl-kernel/admin/views/edit-page.php
index bae9afa1..a8aa4ae9 100644
--- a/bl-kernel/admin/views/edit-page.php
+++ b/bl-kernel/admin/views/edit-page.php
@@ -94,7 +94,14 @@ echo '<div class="bl-publish-sidebar uk-width-2-10">';
 	echo '<li id="sidebar-images-view" class="sidebar-view">';
 
 	// --- BLUDIT COVER IMAGE ---
-	HTML::bluditCoverImage($page->coverImage(false));
+	$coverImage = $page->coverImage(false);
+	$externalCoverImage = '';
+	if (filter_var($coverImage, FILTER_VALIDATE_URL)) {
+		$coverImage = '';
+		$externalCoverImage = $page->coverImage(false);
+	}
+
+	HTML::bluditCoverImage($coverImage);
 
 	// --- BLUDIT QUICK IMAGES ---
 	HTML::bluditQuickImages();
@@ -183,6 +190,15 @@ echo '<div class="bl-publish-sidebar uk-width-2-10">';
 		'label'=>$L->g('Position')
 	));
 
+	// External Coverimage
+	HTML::formInputText(array(
+		'name'=>'externalCoverImage',
+		'value'=>$externalCoverImage,
+		'class'=>'uk-width-1-1 uk-form-medium',
+		'label'=>$L->g('External Cover Image'),
+		'tip'=>$L->g('Image URL')
+	));
+
 	// Slug input
 	HTML::formInputText(array(
 		'name'=>'slug',
diff --git a/bl-kernel/admin/views/new-page.php b/bl-kernel/admin/views/new-page.php
index f8aa2654..23ade3ed 100644
--- a/bl-kernel/admin/views/new-page.php
+++ b/bl-kernel/admin/views/new-page.php
@@ -164,6 +164,15 @@ echo '<div class="bl-publish-sidebar uk-width-2-10">';
 		'label'=>$L->g('Position')
 	));
 
+	// External Coverimage
+	HTML::formInputText(array(
+		'name'=>'externalCoverImage',
+		'value'=>'',
+		'class'=>'uk-width-1-1 uk-form-medium',
+		'label'=>$L->g('External Cover Image'),
+		'tip'=>$L->g('Image URL')
+	));
+
 	// Slug input
 	HTML::formInputText(array(
 		'name'=>'slug',
diff --git a/bl-kernel/functions.php b/bl-kernel/functions.php
index e8b553a4..01ea69d7 100644
--- a/bl-kernel/functions.php
+++ b/bl-kernel/functions.php
@@ -260,10 +260,16 @@ function createPage($args) {
 
 	// The user is always the one loggued
 	$args['username'] = Session::get('username');
-	if( Text::isEmpty($args['username']) ) {
+	if ( Text::isEmpty($args['username']) ) {
 		return false;
 	}
 
+	// External Cover Image
+	if ( Text::isNotEmpty(($args['externalCoverImage'])) ) {
+		$args['coverImage'] = $args['externalCoverImage'];
+		unset($args['externalCoverImage']);
+	}
+
 	$key = $dbPages->add($args);
 	if ($key) {
 		// Call the plugins after page created
@@ -298,17 +304,23 @@ function editPage($args) {
 
 	// The user is always the one loggued
 	$args['username'] = Session::get('username');
-	if( Text::isEmpty($args['username']) ) {
+	if ( Text::isEmpty($args['username']) ) {
 		Log::set('Function editPage()'.LOG_SEP.'Empty username.');
 		return false;
 	}
 
-	if(!isset($args['parent'])) {
+	// External Cover Image
+	if ( Text::isNotEmpty(($args['externalCoverImage'])) ) {
+		$args['coverImage'] = $args['externalCoverImage'];
+		unset($args['externalCoverImage']);
+	}
+
+	if (!isset($args['parent'])) {
 		$args['parent'] = '';
 	}
 
 	$key = $dbPages->edit($args);
-	if($key) {
+	if ($key) {
 		// Call the plugins after page modified
 		Theme::plugins('afterPageModify');
 
diff --git a/bl-kernel/page.class.php b/bl-kernel/page.class.php
index 1f5807a6..6cf26141 100644
--- a/bl-kernel/page.class.php
+++ b/bl-kernel/page.class.php
@@ -289,16 +289,22 @@ class Page {
 		return json_encode($tmp);
 	}
 
-	// Returns the file name of the cover image, FALSE there isn't a cover image setted
+	// Returns the file name, FALSE there isn't a cover image setted
+	// If the user defined an External Cover Image the complete URL is going to be returned
 	// (boolean) $absolute, TRUE returns the absolute path and file name, FALSE just the file name
 	public function coverImage($absolute=true)
 	{
 		$fileName = $this->getValue('coverImage');
-		if(empty($fileName)) {
+		if (empty($fileName)) {
 			return false;
 		}
 
-		if($absolute) {
+		// Check if external cover image, is a valid URL
+		if (filter_var($fileName, FILTER_VALIDATE_URL)) {
+			return $fileName;
+		}
+
+		if ($absolute) {
 			return DOMAIN_UPLOADS.$fileName;
 		}