From cda0c33a5d752305dcdf7e14dfb0029771bdeaa2 Mon Sep 17 00:00:00 2001
From: Gabriel Carneiro <gabriel.chaves.carneiro@gmail.com>
Date: Tue, 6 Aug 2024 10:42:22 -0300
Subject: [PATCH] add json db to php

---
 php/library/json-db.class.php | 158 ++++++++++++++++++++++++++++++++++
 php/upload.php                | 118 +++++++++++++++++--------
 2 files changed, 238 insertions(+), 38 deletions(-)
 create mode 100644 php/library/json-db.class.php

diff --git a/php/library/json-db.class.php b/php/library/json-db.class.php
new file mode 100644
index 0000000..b1f6888
--- /dev/null
+++ b/php/library/json-db.class.php
@@ -0,0 +1,158 @@
+<?php
+/***
+ * DB
+ * A simple json db class
+ */
+class DB
+{
+  private $path = '';
+  private $db = [];
+
+  /**
+   * CONSTRUCTOR
+   * 
+   * @param $path: string (default 'db.json')
+   */
+  public function __construct($path = "db.json"){
+    $this->path = $path;
+
+    if(!file_exists($path)){
+      // If the .json extension is not provided, append it
+      if(strpos($path, '.json') === false){ $path .= '.json'; }
+
+      $fp = fopen($path,"wb");
+      fwrite($fp, "{}");
+      fclose($fp);
+    }
+
+    // Get the contect of the current path
+    $this->db = json_decode(file_get_contents($path), false, 512, JSON_UNESCAPED_UNICODE);
+  }
+
+  /**
+   * SAVE
+   * Save the new db
+   */
+  private function save(){
+    $json = ($this->db === "{}") ? $this->db : json_encode($this->db, JSON_UNESCAPED_UNICODE);
+
+    file_put_contents($this->path, $json);
+  }
+
+  /**
+   * INSERT
+   * 
+   * @param $data: array
+   * @param $key: string (optional)
+   * 
+   * @return DB
+   */
+  public function insert($data, $key = ""){
+    if($key !== "")
+      $this->db[$key] = $data;
+    else
+      $this->db[] = $data;
+
+    $this->save();
+
+    return $this;
+  }
+  
+  /**
+   * UPDATE
+   * 
+   * @param $data: array
+   * @param $key: string
+   * 
+   * @return DB
+   */
+  public function update($data, $key){
+    if($key !== "")
+      $update = array_merge($this->db[$key], $data);
+      $this->db[$key] = $update;
+
+    $this->save();
+
+    return $this;
+  }
+
+  /**
+   * DELETE
+   * 
+   * @param $key: string
+   * 
+   * @return DB
+   */
+  public function delete($key){
+    unset($this->db[$key]);
+
+    $this->save();
+
+    return $this;
+  }
+
+  /**
+   * GET SINGLE
+   * 
+   * @param $key: string
+   * 
+   * @return array
+   */
+  public function getSingle($key){
+    return $this->db[$key] ?? null;
+  }
+
+  /**
+   * GET LIST
+   * 
+   * @param $conditions: array (optional)
+   * @param $orderBy: array (optional)
+   * 
+   * @return array
+   */
+  public function getList($conditions = [], $orderBy = []){
+    $result = [];
+
+    if(empty($conditions)){
+      $result = $this->db;
+    }else{
+      foreach($this->db as $key => $value){
+        $requirements = true;
+
+        foreach($conditions as $k => $v){
+          if($value[$k] !== $v){
+            $requirements = false;
+          }
+        }
+
+        if($requirements) $result[$key] = $value;
+      }
+    }
+
+    if($orderBy['on'] !== '' && $orderBy['order'] !== ''){
+      usort($result, function($first, $second) use($orderBy){
+        if($orderBy['order'] === "ASC"){
+          return strcmp($first[$orderBy['on']], $second[$orderBy['on']]) > 0;
+        }else{
+          return strcmp($first[$orderBy['on']], $second[$orderBy['on']]) < 0;
+        }
+      });
+    }
+
+    return $result;
+  }
+
+  /**
+   * CLEAR
+   * 
+   * @return DB
+   */
+  public function clear(){
+    $this->db = "{}";
+
+    $this->save();
+
+    return $this;
+  }
+}
+?>
diff --git a/php/upload.php b/php/upload.php
index 57f4de2..bf8d5c9 100755
--- a/php/upload.php
+++ b/php/upload.php
@@ -1,52 +1,94 @@
 <?php
-	$username = $_SERVER['PHP_AUTH_USER'];
-	$target_dir = "/var/www/html/aliceclass_videos/" . $username;
-	$paths = array('', '/src', '/dest', '/thumbs')
-		foreach ($paths as $path) {
-			file_exists($target_dir . $path) || mkdir($target_dir . $path, 0775, true)
+
+	// Cria as pastas do usuário
+	function create_user_dir($target_dir) {
+		$paths = array('', '/src', '/dest', '/thumbs');
+		foreach($paths as $path) {
+			file_exists($target_dir . $path) || mkdir($target_dir . $path, 0775, true);
+		}
+	}
+
+	// Checa a extensão do arquivo
+	function check_file_extension($target_file) {
+		$fileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
+
+		if ($fileType != '.mkv') {
+			echo "Apenas arquivos .mkv são aceitos. ";
+			exit(1);
 		}
 
-	$fileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
-	$uploadOk = 1;
+		return 1;
+	}
 
-	// if ($fileType != '.mkv') {
-	// 	echo "Apenas arquivos .mkv são aceitos. ";
-	// 	$uploadOk = 0;
-	// }
+	// Checa se o arquivo existe
+	function check_file_exists($brute_file) {
+		if (file_exists($brute_file)) {
+			echo "Sorry, file already exists.";
+			return 0;
+		}
 
-	// echo $_POST["videoTitle"];
-	$ext = ".mkv";
+		return 1;
+	}
+
+	// Move uploaded file to correct dir
+	function upload($orig_file, $brute_file) {
+		if (!move_uploaded_file($orig_file, $brute_file)) {
+			echo "Houve um problema com o upload do arquivo.";
+			return 0;
+		}
+
+		return 1;
+	}
+
+	// Processa o vídeo com o script do flavio
+	function process_file($username, $title, $input_file, $output_file) {
+		$cmd = sprintf('%s "%s" "%s" "%s" "%s" "%s"',
+			$SCRIPT_PATH, $title, $username, $input_file, '', $output_file);
+
+		$output = shell_exec($cmd);
+		return 1;
+	}
+
+	function insert_into_db($username, $title, $desc, $level, $software, $date) {
+
+		include("library/json-db.class.php");
+
+		$db = new DB('/var/www/src/AliceClass/_data/aulas.json');
+
+		$data = array(
+			"title" => $title,
+			"user" => $username,
+			"nome" => $username,
+			"description" => $desc,
+			"date" => $date,
+			"software" => $software,
+			"level" => $level
+		);
+
+		$db->insert($data);
+
+		return 1;
+	}
+
+	$username = $_SERVER['PHP_AUTH_USER'];
 
 	$video_title = $_POST["videoTitle"];
 	$video_desc = $_POST["videoDescription"];
-	$video_date = date('d/m/Y');
 	$video_level = $_POST["level"];
+	$video_software = $_POST["software"];
+	$video_date = date('d/m/Y');
 
-	$brute_file = $target_dir . "/src/" . $video_title . $ext;
+	$orig_file = $_FILES["fileToUpload"]["tmp_name"];
+	$target_dir = "/var/www/html/aliceclass_videos/" . $username;
+	$brute_file = $target_dir . "/src/" . $video_title . '.mkv';
 	$target_file = $target_dir . "/dest/" . $video_title . '.mp4';
 
-	// Check if file already exists
-	if (file_exists($brute_file)) {
-		echo "Sorry, file already exists.";
-		$uploadOk = 0;
-	}
+	create_user_dir($target_dir) || exit;
+	check_file_extension($_FILES["fileToUpload"]["tmp_name"]) || exit;
+	!check_file_exists($brute_file) || exit;
+	upload($brute_file) || exit;
+	process_file($username, $video_title, $brute_file, $target_file) || exit;
+	insert_into_db($username, $video_title, $video_desc, $video_level, $video_software, $video_date);
 
-	if ($uploadOk == 1) {
-		if (!move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $brute_file)) {
-			echo "Houve um problema com o upload do arquivo.";
-			return;
-		}
-	}
-
-	// return;
-
-	echo "The file ". htmlspecialchars(basename( $_FILES["videoTitle"]["name"])). " has been uploaded.";
-	$SCRIPT_PATH = "/var/www/src/AliceClass/script/script.sh";
-	$AUTHOR = $username;
-	$NAME = $_POST["videoTitle"];
-	$INPUT = $brute_file;
-	$OUTPUT = $target_file;
-
-	$cmd = sprintf('%s "%s" "%s" "%s" "%s" "%s"', $SCRIPT_PATH, $NAME, $AUTHOR, $INPUT, 'aulateste', $OUTPUT);
-	$output = shell_exec($cmd);
+	echo "The file ". htmlspecialchars(basename($orig_file)). " has been uploaded.";
 ?>