Event-API und randomimage hinzugefügt

2025-04-16 21:55:25 +02:00
parent adb4809405
commit 5bd5fcb02c
4 changed files with 316 additions and 0 deletions
--- a/randomimage.php
+++ b/randomimage.php
@@ -0,0 +1,105 @@
+<?php
+header('Content-Type: image/png; Access-Control-Allow-Origin: *;');
+
+error_reporting(-1);
+/**
+ * GET
+ * Argumente: 
+ *      path: Der Pfad zu den Bildern
+ *      recursive: Bool: Soll Rekursiv nach Bildern gesucht werden?
+ *      tn: Thumbnail: Soll eine Beschriftung rauf?
+ *      text: Welcher Text soll auf das Thumbnail?
+ *      color: Welche Farbe soll der Text haben?
+ *      whitelist: Pfad zur Whitelist-Datei
+ *      size: Die Schriftgröße
+ */
+function lineEnding($str) {
+    if (strpos($str, "\r\n") !== false) return "\r\n";
+    if (strpos($str, "\n") !== false) return "\n";
+    return null;
+  }
+include("colorstringconvert.php");
+$whitelist=[];
+if (!isset($_GET["path"]))
+    die("Bitte gebe path an!");
+
+$path = "../bilder".$_GET["path"];
+if (!isset($_GET["recursive"]))
+    die("Bitte gebe recursive an!");
+
+if (!isset($_GET["whitelist"]))
+    $whitelistpath = $path."/whitelist.txt";
+
+$lineEnding=lineEnding(file_get_contents($whitelistpath));
+
+if($lineEnding==null) $whitelist=[file_get_contents($whitelistpath)]; 
+if(empty(file_get_contents($whitelistpath))) $whitelist=[];
+else if(count($whitelist)==0) $whitelist = explode($lineEnding, file_get_contents($whitelistpath));
+
+if (isset($_GET["tn"])) {
+    if (!isset($_GET["text"]))
+        die("Bitte gebe text an!");
+    else
+        $text = $_GET["text"];
+
+    if (!isset($_GET["color"]))
+        $color = 0xFFFFFF;
+    else
+        $color = hexdec(color_name_to_hex($_GET["color"]));
+}
+if (isset($_GET["size"])) {
+    $size = $_GET["size"];
+} else {
+    $size = 10;
+}
+$blacklist = ["@eaDir"];
+$file_ext = ["jpg", "png", "gif"];
+$tn = isset($_GET["tn"]);
+$font = "./tnfont.ttf";
+
+function getImages($path)
+{
+    global $blacklist, $file_ext, $whitelist;
+    $images = [];
+    foreach (scandir($path) as $value) {
+        if (in_array($value, $blacklist))
+            continue;
+        if (is_dir($path . "/" . $value)) {
+            if (!$_GET["recursive"] || $value == "." || $value == "..")
+                continue;
+            else
+                $images=array_merge($images,getImages($path . "/" . $value));
+        }
+        if (!in_array(pathinfo($path . "/" . $value, PATHINFO_EXTENSION), $file_ext))
+            continue;
+
+        if ($whitelist != []) { // Whitelist angegeben: Prüfen, ob Element in der Whitelist ist
+            if (in_array($path . "/" . $value, $whitelist)) { // Element ist in der Whitelist
+                array_push($images, $path . "/" . $value); // Bild zur Auswahl hinzufügen
+            }
+        } else { // Keine Whitelist angegeben -> alles wird mit in die Auswahl gepackt
+            
+            $images[] = $path . "/" . $value;
+        }
+    }
+    return $images;
+
+}
+$images = getImages($path);
+$imagekey = array_rand($images);
+$imagepath = $images[$imagekey];
+if (pathinfo($imagepath, PATHINFO_EXTENSION) == "jpg")
+    $image = imagecreatefromjpeg($imagepath);
+if (pathinfo($imagepath, PATHINFO_EXTENSION) == "png")
+    $image = imagecreatefrompng($imagepath);
+if (pathinfo($imagepath, PATHINFO_EXTENSION) == "gif")
+    $image = imagecreatefromgif($imagepath);
+if ($tn) {
+    $newsize = 0.02 * $size * imagesx($image);
+    $tb = imagettfbbox($newsize, 0, $font, $text);
+    $x = ceil((imagesx($image) - $tb[2]) / 2);
+    $y = ceil((imagesy($image) - $tb[5]) / 2);
+    imagettftext($image, $newsize, 0, $x, $y, $color, $font, $text);
+}
+imagepng($image);
+imagedestroy($image);