web2

web2/php/constants.php

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+<?php
+  // Database constants.
+  define('DB_USER', 'sidps');
+  define('DB_PASSWORD', 'sidps');
+  define('DB_NAME', 'sidps');
+  define('DB_SERVER', 'localhost');
+?>

web2/php/database.php

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+<?php
+  require_once('constants.php');
+
+  //----------------------------------------------------------------------------
+  //--- dbConnect --------------------------------------------------------------
+  //----------------------------------------------------------------------------
+  // Create the connection to the database.
+  // \return False on error and the database otherwise.
+  function dbConnect()
+  {
+    try
+    {
+      $db = new PDO('mysql:host='.DB_SERVER.';dbname='.DB_NAME.';charset=utf8',
+        DB_USER, DB_PASSWORD);
+      $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); 
+    }
+    catch (PDOException $exception)
+    {
+      error_log('Connection error: '.$exception->getMessage());
+      return false;
+    }
+    return $db;
+  }
+
+  //----------------------------------------------------------------------------
+  //--- dbRequestAlertes --------------------------------------------------------
+  //----------------------------------------------------------------------------
+  // Function to get all alertes 
+  // \param db The connected database.
+  // \return The list of alertes.
+  function dbRequestAlerts($db)
+  {
+    try
+    {
+      $request = 'SELECT * FROM alertes';
+      $statement = $db->prepare($request);
+      $statement->execute();
+      $result = $statement->fetchAll(PDO::FETCH_ASSOC);
+    }
+    catch (PDOException $exception)
+    {
+      error_log('Request error: '.$exception->getMessage());
+      return false;
+    }
+    return $result;
+  }
+
+  //----------------------------------------------------------------------------
+  //--- dbAddCTweet ------------------------------------------------------------
+  //----------------------------------------------------------------------------
+  // Add a tweet.
+  // \param db The connected database.
+  // \param login The login of the user.
+  // \param text The tweet to add.
+  // \return True on success, false otherwise.
+  function dbAddTweet($db, $login, $text)
+  {
+    try
+    {
+      $request = 'INSERT INTO tweets(login, text) VALUES(:login, :text)';
+      $statement = $db->prepare($request);
+      $statement->bindParam(':login', $login, PDO::PARAM_STR, 20);
+      $statement->bindParam(':text', $text, PDO::PARAM_STR, 80);
+      $statement->execute();
+    }
+    catch (PDOException $exception)
+    {
+      error_log('Request error: '.$exception->getMessage());
+      return false;
+    }
+    return true;
+  }
+  
+  //----------------------------------------------------------------------------
+  //--- dbModifyTweet ----------------------------------------------------------
+  //----------------------------------------------------------------------------
+  // Function to modify a tweet.
+  // \param db The connected database.
+  // \param id The id of the tweet to update.
+  // \param login The login of the user.
+  // \param text The new tweet.
+  // \return True on success, false otherwise.
+  function dbModifyTweet($db, $id, $login, $text)
+  {
+    try
+    {
+      $request = 'UPDATE tweets SET text=:text WHERE id=:id AND login=:login ';
+      $statement = $db->prepare($request);
+      $statement->bindParam(':id', $id, PDO::PARAM_INT);
+      $statement->bindParam(':login', $login, PDO::PARAM_STR, 20);
+      $statement->bindParam(':text', $text, PDO::PARAM_STR, 80);
+      $statement->execute();
+    }
+    catch (PDOException $exception)
+    {
+      error_log('Request error: '.$exception->getMessage());
+      return false;
+    }
+    return true;
+  }
+
+  //----------------------------------------------------------------------------
+  //--- dbDeleteTweet ----------------------------------------------------------
+  //----------------------------------------------------------------------------
+  // Delete a tweet.
+  // \param db The connected database.
+  // \param id The id of the tweet.
+  // \param login The login of the user.
+  // \return True on success, false otherwise.
+  function dbDeleteTweet($db, $id, $login)
+  {
+    try
+    {
+      $request = 'DELETE FROM tweets WHERE id=:id AND login=:login';
+      $statement = $db->prepare($request);
+      $statement->bindParam(':id', $id, PDO::PARAM_INT);
+      $statement->bindParam(':login', $login, PDO::PARAM_STR, 20);
+      $statement->execute();
+    }
+    catch (PDOException $exception)
+    {
+      error_log('Request error: '.$exception->getMessage());
+      return false;
+    }
+    return true;
+  }
+?>

web2/php/request.php

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+<?php
+
+    require_once('database.php');
+
+    // Database connexion.
+    $db = dbConnect();
+    if (!$db)
+    {
+        header ('HTTP/1.1 503 Service Unavailable');
+        exit;
+    }
+
+    // Check the request.
+    $requestMethod = $_SERVER['REQUEST_METHOD'];
+    $request = $_SERVER['PATH_INFO'];
+    $request = explode('/', $request);
+
+    if ($request[1] != 'alertes')
+    {
+        header('HTTP/1.1 400 Bad Request');
+        exit;
+    }
+
+    if ($requestMethod == 'GET')
+    {
+        $data = dbRequestAlerts($db);
+    }
+  
+    if ($requestMethod == 'PUT')
+    {
+        parse_str(file_get_contents('php://input'), $_PUT);
+        if($id !=''&&isset($_PUT['login'])&&isset($_PUT['text']))
+            $data = dbModifyTweet($db, $id, $_PUT['login'], strip_tags($_PUT['text']));
+    }
+
+    // Send data to the client.
+    header('Content-Type: application/json; charset=utf-8');
+    header('Cache-control: no-store, no-cache, must-revalidate');
+    header('Pragma: no-cache');
+    if($requestMethod == 'POST')
+        header('HTTP/1.1 201 Created');
+    else
+        header('HTTP/1.1 200 OK');
+    echo json_encode($data);
+    exit;
+?>