From 0eaf8f094783e18499df70d84e81964fa785449f Mon Sep 17 00:00:00 2001
From: Chris <christopher@chris-latza.de>
Date: Thu, 21 Mar 2019 01:13:55 +0100
Subject: [PATCH] erste verion

---
 Dockerfile     | 10 ++++++
 getPreview.php | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 getPreview.php

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..4172f73
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM debian:9.2
+
+MAINTAINER christopher@chris-latza.de
+
+RUN apt-get update && apt-get install -y php-cli
+RUN mkdir /data
+ADD getPreview.php /data/getPreview.php
+WORKDIR /data
+
+ENTRYPOINT ["php", "/data/getPreview.php"]
diff --git a/getPreview.php b/getPreview.php
new file mode 100644
index 0000000..44e5fff
--- /dev/null
+++ b/getPreview.php
@@ -0,0 +1,95 @@
+<?php
+$globalData['ClientID']     =   "";
+$globalData['Channel']      =   "";
+$globalData['Folder']       =   "./images/";
+
+if (isset($argv[1]))
+    $globalData['ClientID'] = @$argv[1];
+
+if (isset($argv[2]))
+    $globalData['Channel'] = @$argv[2];
+
+$globalData['sslContext']   =   stream_context_create(array("ssl"=>array("verify_peer"=>false,"verify_peer_name"=>false)));
+
+function getTokens($channelName)
+{
+    global $globalData;
+
+    $url = "https://api.twitch.tv/api/channels/".$channelName."/access_token?client_id=".$globalData['ClientID'];
+
+    $json = json_decode(file_get_contents($url));
+    $json->token = json_decode($json->token);
+    return $json;
+}
+
+function getStreamInfo($channelName)
+{
+    global $globalData;
+
+    $url = "https://api.twitch.tv/kraken/streams/".$channelName."?client_id=".$globalData['ClientID'];
+    $json = json_decode(file_get_contents($url, false, $globalData['sslContext']));
+    return $json;
+}
+
+function getPreviewURL($infos, $sizeX, $sizeY)
+{
+    $url = @$infos->stream->preview->template;
+    $url = str_replace("{width}", $sizeX, $url);
+    $url = str_replace("{height}", $sizeY, $url);
+    return $url;
+}
+
+function getFileCountInFolder()
+{
+    global $globalData;
+
+    if (!file_exists($globalData['Folder']))
+        mkdir($globalData['Folder'] , 0777, true);
+
+    $files = array();
+
+    if ($handle = opendir($globalData['Folder'])) {
+        while (false !== ($entry = readdir($handle))) {
+            if ($entry != "." && $entry != "..") 
+            {
+                array_push($files, $entry);
+            }
+        }
+    
+        closedir($handle);
+    }
+
+    return count($files);
+}
+
+function getFileExtention($uri)
+{
+    $parts = explode(".", $uri);
+    return $parts[(count($parts)-1)];
+}
+
+while(true)
+{
+    $streamInfo = getStreamInfo($globalData['Channel']);
+    $previewURL = getPreviewURL($streamInfo, "1920", "1080");
+    
+    if($previewURL == "")
+    {
+        print_r($globalData);
+        print_r($argv);
+        print_r($streamInfo);
+        echo "URL == ".$previewURL."\n";
+        die("fatal error");
+    }
+        
+
+    $imageFileName = $globalData['Folder'].(getFileCountInFolder() + 1).".".getFileExtention($previewURL);
+
+    echo "Copy preview url '".$previewURL."' to '".$imageFileName."' ...";
+    file_put_contents($imageFileName, file_get_contents($previewURL, false, $globalData['sslContext']));
+    echo "done\n";
+
+    sleep(300);
+}
+
+?>
\ No newline at end of file