From 00d31493607addabb903b85d7e66c1d0389ce892 Mon Sep 17 00:00:00 2001
From: "Marcel Kapfer (mmk2410)" <marcelmichaelkapfer@yahoo.co.nz>
Date: Fri, 30 Dec 2016 00:05:01 +0100
Subject: [PATCH] Hide url blogs from selection field in the rcc

---
 rcc/index.php                 | 30 ++++++++++++++++++++----------
 res/php/BlogListGenerator.php | 22 ++++++++++++++++++++++
 2 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/rcc/index.php b/rcc/index.php
index 74c6630..f26fc5f 100644
--- a/rcc/index.php
+++ b/rcc/index.php
@@ -124,8 +124,10 @@ if ($config["rcc"]["rcc"] == "on") {
             $blogs = scandir("../blogs/");
             foreach ($blogs as $blog) {
                 if (strlen($blog) >= 3 && substr($blog, -3) == ".md") {
-                    $blog = substr($blog, 0, -3);
-                    echo "<option value='$blog'>$blog</option>";
+                    if (BlogListGenerator::getExternalLink($blog, '../') == null) {
+                        $blog = substr($blog, 0, -3);
+                        echo "<option value='$blog'>$blog</option>";
+                    }
                 }
             }
             ?>
@@ -149,8 +151,10 @@ if ($config["rcc"]["rcc"] == "on") {
             $blogs = scandir("../blogs/");
             foreach ($blogs as $blog) {
                 if (strlen($blog) >= 3 && substr($blog, -3) == ".md") {
-                    $blog = substr($blog, 0, -3);
-                    echo "<option value='$blog'>$blog</option>";
+                    if (BlogListGenerator::getExternalLink($blog, '../') == null) {
+                        $blog = substr($blog, 0, -3);
+                        echo "<option value='$blog'>$blog</option>";
+                    }
                 }
             }
             ?>
@@ -197,8 +201,10 @@ if ($config["rcc"]["rcc"] == "on") {
             $blogs = scandir("../blogs/");
             foreach ($blogs as $blog) {
                 if (strlen($blog) >= 3 && substr($blog, -3) == ".md") {
-                    $blog = substr($blog, 0, -3);
-                    echo "<option value='$blog'>$blog</option>";
+                    if (BlogListGenerator::getExternalLink($blog, '../') == null) {
+                        $blog = substr($blog, 0, -3);
+                        echo "<option value='$blog'>$blog</option>";
+                    }
                 }
             }
             ?>
@@ -220,8 +226,10 @@ if ($config["rcc"]["rcc"] == "on") {
             $blogs = scandir("../blogs/");
             foreach ($blogs as $blog) {
                 if (strlen($blog) >= 3 && substr($blog, -3) == ".md") {
-                    $blog = substr($blog, 0, -3);
-                    echo "<option value='$blog'>$blog</option>";
+                    if (BlogListGenerator::getExternalLink($blog, '../') == null) {
+                        $blog = substr($blog, 0, -3);
+                        echo "<option value='$blog'>$blog</option>";
+                    }
                 }
             }
             ?>
@@ -251,8 +259,10 @@ if ($config["rcc"]["rcc"] == "on") {
             $blogs = scandir("../blogs/");
             foreach ($blogs as $blog) {
                 if (strlen($blog) >= 3 && substr($blog, -3) == ".md") {
-                    $blog = substr($blog, 0, -3);
-                    echo "<option value='$blog'>$blog</option>";
+                    if (BlogListGenerator::getExternalLink($blog, '../') == null) {
+                        $blog = substr($blog, 0, -3);
+                        echo "<option value='$blog'>$blog</option>";
+                    }
                 }
             }
             ?>
diff --git a/res/php/BlogListGenerator.php b/res/php/BlogListGenerator.php
index 6666fc9..fe84478 100644
--- a/res/php/BlogListGenerator.php
+++ b/res/php/BlogListGenerator.php
@@ -112,4 +112,26 @@ class BlogListGenerator
             return $i;
         }
     }
+    
+    /**
+     * A function returning the external linkn of
+     * a blog.
+     *
+     * @param string $blog the blog name
+     * @param string $dir root directory of installation
+     *
+     * @return string link to external page else null
+     */
+    public function getExternalLink($blog, $dir)
+    {
+        $path = $dir . "/blogs/" . $blog;
+        $blog = file_get_contents($path) . "\n";
+        if (substr($blog, 0, 6) == "%TITLE") {
+            $blog = substr($blog, strpos($blog, "\n") + 1);
+        }
+        if (substr($blog, 0, 4) == "%URL") {
+            return substr($blog, 6, strpos($blog, "\n") - 6);
+        }
+        return null;
+    }
 }