From 1321def3e191f616a03e901c3b8f7c987ca3f85c Mon Sep 17 00:00:00 2001
From: Keplyx <keplyx@gmail.com>
Date: Sun, 22 Apr 2018 19:46:59 +0200
Subject: [PATCH] Display album download only if available

---
 photos.php | 73 +++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 50 insertions(+), 23 deletions(-)

diff --git a/photos.php b/photos.php
index 581ed9d..5fabb5f 100644
--- a/photos.php
+++ b/photos.php
@@ -1,31 +1,55 @@
 <?php
 ob_start(); // Start reading html
-// Get active folder from url and prevent from seeing folders before photos/
-function getActiveFolder()
+
+define("urlParam", "path");
+
+// Get active path from url and prevent from seeing folders before photos/
+function getActivePath()
 {
-    $dir = $_GET['folder'];
+    $dir = $_GET[urlParam];
     $folders = explode(DIRECTORY_SEPARATOR, $dir);
     $currentPath = "";
     foreach ($folders as $value) {
-        if ($value != "..") {
-            $currentPath .= $value . DIRECTORY_SEPARATOR;
+        if ($value != ".." && $value != "." && $value != "") {
+            $currentPath .= DIRECTORY_SEPARATOR.$value;
         }
     }
     return $currentPath;
 }
 
+// Get active folder from the active path
+function GetActiveFolder($path) {
+    $dir = explode(DIRECTORY_SEPARATOR, $path);
+    return $dir[sizeof($dir) - 1]; // Last item after /
+}
+
+function isAlbumAvailable($path) {
+    $dir = "photos".$path;
+    $files = scandir($dir);
+    $valid = false;
+    foreach ($files as $key => $value) {
+        $path = realpath($dir.DIRECTORY_SEPARATOR.$value);
+        if (!is_dir($path)) {
+            $valid = pathinfo($path, PATHINFO_EXTENSION) == "zip";
+            if ($valid)
+                break;
+        }
+    }
+    return $valid;
+}
+
+
 // Get all directories in the specified path
 function getDirectories($dir)
 {
-    $dir = "photos/".$dir;
+    $dir = "photos".$dir;
     $files = scandir($dir);
     $displayedItems = 0;
     foreach ($files as $key => $value) {
         $path = realpath($dir . DIRECTORY_SEPARATOR . $value);
         if (is_dir($path) && $value != "." && $value != "..") {
             $folderTitle = $value;
-            $folderLink = "?folder=" . getActiveFolder() . $value;
-            $folderClass = "";
+            $folderLink = "?".urlParam."=".getActivePath().DIRECTORY_SEPARATOR.$value;
             include("includes/photos/folder_template.php");
             $displayedItems++;
         }
@@ -39,16 +63,16 @@ function getDirectories($dir)
 // Get all photos in the specified path
 function getPhotos($dir)
 {
-    $dir = "photos/".$dir;
+    $dir = "photos".$dir;
     $files = scandir($dir);
     $displayedItems = 0;
     foreach ($files as $key => $value) {
-        $path = realpath($dir . DIRECTORY_SEPARATOR . $value);
+        $path = realpath($dir.DIRECTORY_SEPARATOR.$value);
         if (!is_dir($path)) {
             $ext = pathinfo($path, PATHINFO_EXTENSION);
-            if ($ext == "bmp" || $ext == "jpg" || $ext == "jpeg" || $ext == "png") {
-                $imageSrc = $dir . $value;
-                $imageId = "photo-" . $displayedItems;
+            if ($ext == "bmp" || $ext == "jpg" || $ext == "jpeg" || $ext == "png" || $ext == "gif") {
+                $imageSrc = $dir.DIRECTORY_SEPARATOR.$value;
+                $imageId = "photo-".$displayedItems;
                 include("includes/photos/photo_template.php");
                 $displayedItems++;
             }
@@ -66,13 +90,13 @@ function generatePath($dir)
     $folders = explode(DIRECTORY_SEPARATOR, $dir);
     $currentPath = "";
     $pathTitle = "Menu";
-    $pathLink = "?folder=";
+    $pathLink = "?".urlParam."=";
     include("includes/photos/path_template.php");
     foreach ($folders as $value) {
         if ($value != "") {
             $pathTitle = $value;
-            $currentPath .= $value . DIRECTORY_SEPARATOR;
-            $pathLink = "?folder=" . $currentPath;
+            $currentPath .= DIRECTORY_SEPARATOR.$value;
+            $pathLink = "?".urlParam."=".$currentPath;
             include("includes/photos/path_template.php");
         }
     }
@@ -107,21 +131,24 @@ function generatePath($dir)
 <ul class="photos_path">
     <li><p>Chemin : </p></li>
     <?php
-    generatePath(getActiveFolder());
+    generatePath(getActivePath());
     ?>
 </ul>
 <div class="photos_folder">
     <?php
-    getDirectories(getActiveFolder());
+    getDirectories(getActivePath());
     ?>
 </div>
-<div id="download_album">
-    <i class="fas fa-download"></i>
-    <p>Télécharger l'album</p>
-</div>
+<?php if(isAlbumAvailable(getActivePath())): ?>
+    <a download="" href="photos<?php echo getActivePath().DIRECTORY_SEPARATOR.GetActiveFolder(getActivePath())?>.zip" id="download_album">
+        <i class="fas fa-download"></i>
+        <p>Télécharger l'album</p>
+    </a>
+<?php endif; ?>
+
 <div class="photos">
     <?php
-    getPhotos(getActiveFolder());
+    getPhotos(getActivePath());
     ?>
 </div>
 <script src="assets/scripts/photosScript.js"></script>