diff --git a/build/service/CalendarExtractor.php b/build/service/CalendarExtractor.php
new file mode 100644
index 0000000..1d58426
--- /dev/null
+++ b/build/service/CalendarExtractor.php
@@ -0,0 +1,269 @@
+<?php
+
+	namespace service;
+
+
+	class CalendarExtractor{
+
+
+		/* [1] Attributes
+		=========================================================*/
+		private $start_d = null;  // 1st day date
+		private $img_url = null;  // image url
+		private $img_res = null;  // image resource
+		private $event   = [];    // events
+		private $event_t = [ 0 ]; // types of events
+
+		/* [2] Constants
+		=========================================================*/
+		public static $start_y = 79;   // start y
+		public static $stop_y  = 699;  // stop y
+		public static $start_h = 8;    // start hour
+		public static $stop_h  = 20;   // stop hour
+
+
+
+		/* (1) Builds a calendar extractor
+		*
+		* @img_url<String>							URL of the string to extract from
+		* @start_d<String>							Date of the first day
+		*
+		* @return instance<CalendarExtractor>		Instance
+		*
+		---------------------------------------------------------*/
+		public function __construct($img_url=null, $start_d=null){
+
+			/* [1] Check arguments
+			=========================================================*/ {
+
+				/* (1) Check type */
+				if( !is_string($img_url) || !is_string($start_d) )
+					throw new \Exception("CalendarExtractor.__construct(<String>, <String>) expected but CalendarExtractor.__construct(<".gettype($img_url).">, <".gettype($start_d).">) received");
+
+				/* (2) Check @img_url link availability */
+				if( !($img_head=@get_headers($img_url)) )
+					throw new \Exception("CalendarExtractor.__construct(<URL>, <String>) received but cannot reach <URL>");
+
+				if( !preg_match('@HTTP.+200@', $img_head[0]) )
+					throw new \Exception("CalendarExtractor.__construct(<URL>, <String>) received but cannot reach <URL>");
+
+				/* (3) Check @start_d format */
+				if( !preg_match("@^\d{1,2}-\d{1,2}-\d{3,}$@", $start_d) )
+					throw new \Exception("CalendarExtractor.__construct(<String>, <DATE>) received <DATE> has not the correct format");
+
+
+			}
+
+
+			/* [2] Fetch file
+			=========================================================*/ {
+
+				/* (1) Try to open file with GD */
+				$this->img_res = @imagecreatefrompng($img_url);
+
+				/* (2) Manage error */
+				if( !$this->img_res )
+					throw new \Exception("URL is not a JPEG image, or is unreachable");
+
+				/* (3) Register data */
+				$this->img_url = $img_url;
+				$this->start_d = $start_d;
+
+			}
+
+		}
+
+
+
+
+		/* (2) Extracts calendar data from image
+		*
+		* @return error<bool>			FALSE on error
+		*
+		---------------------------------------------------------*/
+		public function process(){
+
+			/* [1] Global variables
+			=========================================================*/ {
+
+				/* (1) Image size */ {
+
+					// {1} Request for size //
+					$img_siz = @getimagesize($this->img_url);
+
+					// {2} If error //
+					if( !$img_siz )
+						throw new \Exception("Cannot get image size");
+
+					$img_siz = [
+						'w' => $img_siz[0],
+						'h' => $img_siz[1]
+					];
+
+
+				}
+
+			}
+
+
+
+
+			/* [2] Extract day limits
+			=========================================================*/ {
+
+				/* (1) Will contain the column+1 w index */
+				$col_ind = [];
+
+				/* (2) Extract column indexes */
+				for( $x = 0 ; $x < $img_siz['w'] ; $x++ ){
+
+					if( $this->getColor($x, 62) <= 10 )
+						$col_ind[] = $x+1;
+
+				}
+
+			}
+
+
+
+			/* [3] For each day -> get events
+			=========================================================*/ {
+
+				/* (1) For each day */
+				foreach($col_ind as $day_n=>$col_x){
+
+					// {1.1} Create the day in events //
+					$this->event[$day_n] = [];
+
+					// {1.2} if inside a course current color, else 0 //
+					$cur_col = 0x0;
+
+
+					/* (2) For each y pixel -> exctract event */
+					for( $y = self::$start_y ; $y < self::$stop_y ; $y++ ){
+
+						/* (3) Get current color + next */
+						$p  = $this->getColor($col_x, $y);
+						$p1 = $this->getColor($col_x, $y+1);
+
+						/* (4) If on black pixel and next not white */
+						if( $p == 0 && $p1 != 0xffffff ){
+
+							// {1} calculate time //
+							$time = $this->yToTime($day_n, $y);
+
+							// {2} Store new event type (if missing) //
+							if( !isset($this->event_t[$p1]) )
+								$this->event_t[$p1] = $this->event_t[0]++;
+
+							// {3} Store event start //
+							$this->event[$this->event_t[$p1]][$time] = [];
+
+							// {4} Seek end of event //
+							$y++;
+							while( $y < self::$stop_y && $this->getColor($col_x, $y) != 0 )
+								$y++;
+
+							// {5} If end reached //
+							$this->event[$this->event_t[$p1]][$time] = $this->yToTime($day_n, $y);
+
+						}
+
+
+
+					}
+
+				}
+
+
+			}
+
+			var_dump($this->event);
+
+
+
+			die(1);
+		}
+
+
+
+
+
+		/* (3) Get a pixel's color
+		*
+		* @x<int>							X coordinate
+		* @y<int>							Y coordinate
+		*
+		* @return color<u_int32>			Raw color
+		*
+		---------------------------------------------------------*/
+		private function getColor($x, $y){
+			return imagecolorat($this->img_res, $x, $y);
+		}
+
+
+
+
+		/* (4) Get time from a y-coordinate
+		*
+		* @day_n<int>						Day relative index
+		* @y<int>							y Coordinate
+		*
+		* @return time<String>				Formatted time (HH:mm)
+		*
+		---------------------------------------------------------*/
+		private function yToTime($day_n, $y){
+
+			/* [1] Get the date
+			=========================================================*/ {
+
+				/* (1) Get the day's date */
+				$day_ts = strtotime($this->start_d." + $day_n days");
+
+				/* (2) Format it */
+				$day = date('d-m-Y', $day_ts);
+
+			}
+
+
+			/* [2] Get the time
+			=========================================================*/{
+
+				/* (1) Get the time */
+				$time = self::$start_h + (self::$stop_h-self::$start_h) * ($y-self::$start_y) / (self::$stop_y-self::$start_y);
+
+				/* (2) Calculate hour form time */
+				$hour = floor($time);
+
+				/* (3) Calculate min from time */
+				$min = round( 60 * ($time-$hour) );
+
+				/* (4) Round minutes to 10min */
+				$min = floor($min/10)*10;
+
+				/* (5) Format to 2-digit */
+				$hour = ( $hour < 10 ) ? "0$hour" : $hour;
+				$min  = ( $min  < 10 ) ? "0$min"  : $min ;
+
+			}
+
+
+
+			return "$day $hour:$min:00";
+
+		}
+
+
+
+
+
+
+		/* (5) Generate ICS output
+		*
+		* @return ics<String>			ICS Representation of the events
+		*
+		---------------------------------------------------------*/
+		// public function toIcs();
+
+
+	}
\ No newline at end of file
diff --git a/build/service/Config.php b/build/service/Config.php
new file mode 100644
index 0000000..90cb220
--- /dev/null
+++ b/build/service/Config.php
@@ -0,0 +1,208 @@
+<?php
+
+	namespace service;
+
+	class Config{
+
+		/* [1] Attributes
+		=========================================================*/
+		private $diplomes = null;
+		private $periods  = null;
+
+
+
+		private static function monthAsso(){
+			return [
+				'janvier'   => '01',
+				'février'   => '02',
+				'mars'      => '03',
+				'avril'     => '04',
+				'mai'       => '05',
+				'juin'      => '06',
+				'juillet'   => '07',
+				'août'      => '08',
+				'septembre' => '09',
+				'octobre'   => '10',
+				'novembre'  => '11',
+				'décembre'  => '12'
+			];
+		}
+
+
+
+
+		/* (1) Constructs a filled config object
+		*
+		* @d_list<Array>					List of the diplomes ( ID => name )
+		* @p_list<Array>					List of the periods  ( ID => first day's date )
+		*
+		* @return this<Config>				New instance
+		*
+		---------------------------------------------------------*/
+		private function __construct($d_list=null, $p_list=null){
+			/* [1] Check arguments (type: array)
+			=========================================================*/
+			if( !is_array($d_list) || !is_array($p_list)  )
+				throw new \Exception("Config.__construct(<Array>, <Array) expected but Config.__construct(<".gettype($d_list).">, <".gettype($d_list).">) received");
+
+
+			/* [2] Basic setter
+			=========================================================*/
+			/* (1) Set the diplomes' list */
+			$this->diplomes = $d_list;
+
+			/* (2) Set the periods' list */
+			$this->periods  = $p_list;
+
+		}
+
+
+
+		/* (2) Loads the configuration from URL
+		*
+		* @d_script<String>					URL of the script containing the diplomes list
+		* @p_script<String>					URL of the script containing the periods list
+		*
+		* @return instance<Config>			The created instance
+		* 									NULL on error
+		*
+		---------------------------------------------------------*/
+		public static function load($d_script=null, $p_script=null){
+
+			/* [1] Check arguments (type + validity)
+			=========================================================*/ {
+
+				/* (1) Check arguments' types (string, string) */
+				if( !is_string($d_script) || !is_string($p_script)  )
+					throw new \Exception("Config::load(<Array>, <Array) expected but Config::load(<".gettype($d_script).">, <".gettype($d_script).">) received");
+
+				/* (2) Check @d_script URL validity */
+				if( !($d_h=@get_headers($d_script)) )
+					throw new \Exception("Config::load(<1>, <2>) received but cannot reach <1>");
+
+				/* (3) Check @p_script URL validity */
+				if( !($p_h=@get_headers($p_script)) )
+					throw new \Exception("Config::load(<1>, <2>) received but cannot reach <1>");
+
+				/* (4) Check image exists @dscript */
+				if( !preg_match('@HTTP.+200@', $d_h[0]) )
+					throw new \Exception("Config::load(<1>, <2>) received but cannot reach <1>");
+
+				/* (5) Check image exists @dscript */
+				if( !preg_match('@HTTP.+200@', $p_h[0]) )
+					throw new \Exception("Config::load(<1>, <2>) received but cannot reach <1>");
+
+			}
+
+
+			/* [2] Get file cursors
+			=========================================================*/ {
+
+				/* (1) Try to get file cursors */
+				try{
+					$d_cur = new \SplFileObject($d_script, "r");
+					$p_cur = new \SplFileObject($p_script, "r");
+
+				/* (2) Raise on failure */
+				}catch(\Exception $e){
+					throw new \Exception("Config::load(<1>, <2>) cannot get a cursor on a one of both files");
+				}
+
+			}
+
+
+			/* [3] Filter and register content
+			=========================================================*/{
+
+				/* (1) Manage diplomes
+				---------------------------------------------------------*/ {
+
+					/* (1) Initialize diplomes' list */
+					$d_list = [];
+
+					/* (2) Fetch each line and extract data */
+					while( !$d_cur->eof() ){
+
+						// {1} If does not match -> go to next line //
+						if( !preg_match('@"grDiplome","(?:&lt;)?(.+)(?:&gt;)?","T(.+)"@i', $d_cur->fgets(), $m) )
+							continue;
+
+						// {2} Register into diplome list //
+						$d_list[ "T${m[2]}" ] = html_entity_decode($m[1]);
+
+					}
+
+					/* (2) Close file cursor */
+					$d_cur = null;
+
+				}
+
+				/* (2) Manage periods
+				---------------------------------------------------------*/{
+
+					/* (1) Initialize periods' list */
+					$p_list = [];
+
+					/* (2) Fetch each line and extract data */
+					while( !$p_cur->eof() ){
+
+						// {1} If does not match -> go to next line //
+						if( !preg_match('@"T\d+","du \d+ au (\d+) ([a-z]+) (\d+)","T\d+S(.+)"@i', $p_cur->fgets(), $m) )
+							continue;
+
+						// {2} Get numeric month number //
+						$month = self::monthAsso()[ $m[2] ];
+
+						// {3} Get monday date //
+						$mon = date( 'd-m-Y', strtotime("${m[1]}-$month-${m[3]} - 5 days") );
+
+						// {4} Register into the list //
+						$p_list[ "S${m[4]}" ] = $mon;
+
+					}
+
+					/* (2) Close file cursor */
+					$p_cur = null;
+
+				}
+
+			}
+
+
+
+
+			/* [4] Return the instance
+			=========================================================*/
+			return new Config($d_list, $p_list);
+
+		}
+
+
+
+
+		/* (3) Getter diplomes
+		*
+		* @return diplomes<Array>			Diplome list
+		*
+		---------------------------------------------------------*/
+		public function getDiplomes(){
+			return $this->diplomes;
+		}
+
+
+
+
+		/* (4) Getter periods
+		*
+		* @return periods<Array>			Period list
+		*
+		---------------------------------------------------------*/
+		public function getPeriods(){
+			return $this->periods;
+		}
+
+
+
+
+
+	}
\ No newline at end of file
diff --git a/build/service/Updater.php b/build/service/Updater.php
new file mode 100644
index 0000000..cdd26e8
--- /dev/null
+++ b/build/service/Updater.php
@@ -0,0 +1,65 @@
+<?php
+
+	namespace service;
+
+	class Updater{
+
+		/* [1] Attributes
+		=========================================================*/
+		private $config = null;
+
+
+		/* (1) Constructs and initialise an updater
+		*
+		* @return instance<Updater>			New Updater
+		*
+		---------------------------------------------------------*/
+		public function __construct(){
+
+			/* [1] Fetch config
+			=========================================================*/ {
+
+				/* (1) Try to load the configuration */
+				$this->config = Config::load("http://sciences.univ-pau.fr/edt/_ressource.js", "http://sciences.univ-pau.fr/edt/_periode.js");
+
+				/* (2) If cannot fetch config */
+				if( !($this->config instanceof Config) )
+					throw new \Exception("Cannot fetch configuration");
+
+			}
+
+		}
+
+
+
+		/* (2) Update the ICS files
+		*
+		* @return error<bool>			FALSE on error
+		*
+		---------------------------------------------------------*/
+		public function update(){
+
+			/* [1] Browse ech diplome
+			=========================================================*/
+			foreach($this->config->getDiplomes() as $d_id=>$d_name){
+
+				/* (1) Browse each date
+				---------------------------------------------------------*/
+				foreach($this->config->getPeriods() as $p_id=>$p_date){
+
+					/* (1) Load image in the extractor */
+					var_dump("http://sciences.univ-pau.fr/edt/diplomes/${d_id}${p_id}.png");
+					$calext = new CalendarExtractor("http://sciences.univ-pau.fr/edt/diplomes/${d_id}${p_id}.png", $p_date);
+
+					/* (2) Extract calendar data */
+					$calext->process();
+
+				}
+
+			}
+		}
+
+
+
+
+	}
\ No newline at end of file
diff --git a/build/service/lib/months.php b/build/service/lib/months.php
deleted file mode 100644
index 9d8b758..0000000
--- a/build/service/lib/months.php
+++ /dev/null
@@ -1,16 +0,0 @@
-<?php
-
-	$monthList = [
-		'janvier'   => '01',
-		'février'   => '02',
-		'mars'      => '03',
-		'avril'     => '04',
-		'mai'       => '05',
-		'juin'      => '06',
-		'juillet'   => '07',
-		'août'      => '08',
-		'septembre' => '09',
-		'octobre'   => '10',
-		'novembre'  => '11',
-		'décembre'  => '12'
-	];
\ No newline at end of file
diff --git a/build/service/lib/parse.php b/build/service/lib/parse.php
deleted file mode 100644
index acb64d7..0000000
--- a/build/service/lib/parse.php
+++ /dev/null
@@ -1,79 +0,0 @@
-<?php
-
-	// Absolute root dir
-	$ABSROOT = dirname(__DIR__);
-	require_once "$ABSROOT/lib/months.php";
-
-
-	/* [1] Check arguments
-	=========================================================*/
-	/* (1) If not enough -> abort */
-	if( $argc <= 2 )
-		exit(1);
-
-	/* (2) If @type incorrect */
-	if( !in_array($argv[1], ['cursus', 'period']) )
-		die(" * incorrect file type\n");
-
-	/* (3) Check given file */
-	if( !file_exists($argv[2]) )
-		die(" * file does not exist\n");
-
-
-
-
-
-	/* [2] Try to access file's content
-	=========================================================*/
-	/* (1) Read file */
-	$raw = file_get_contents($argv[2]);
-
-	/* (2) Manage error */
-	if( !is_string($raw) )
-		die(" * Cannot read file\n");
-
-	/* (3) Split by lines */
-	$raw = explode("\n", $raw);
-
-
-
-	/* [3] Parse data
-	=========================================================*/
-	/* (1) Prepare the output list */
-	$list = [];
-
-	/* (2) Cursur parser */
-	if( $argv[1] == 'cursus' ){
-
-		foreach($raw as $line)
-			if( preg_match('@"grDiplome","(?:&lt;)?(.+)(?:&gt;)?","T(.+)"@i', $line, $m) )
-				$list[ html_entity_decode($m[1]) ] = "T${m[2]}";
-
-	/* (3) Period parser */
-	}else{
-
-		$first = null;
-
-		foreach($raw as $line){
-
-			if( preg_match('@"T\d+","du \d+ au (\d+) ([a-z]+) (\d+)","T\d+S(.+)"@i', $line, $m) ){
-
-				/* (3.1) Translate month */
-				$month = $monthList[$m[2]];
-
-				/* (3.2) Get date of monday */
-				$list[ "S${m[4]}" ] = date('d-m-Y', strtotime("${m[1]}-$month-${m[3]} - 5 days"));
-			}
-
-		}
-	}
-
-
-
-	/* [4] Write data back
-	=========================================================*/
-	if( !file_put_contents("$ABSROOT/../../tmp/${argv[1]}.json", json_encode($list)) )
-		die(" * Cannot write parsed data back\n");
-
-
-	exit(0);
\ No newline at end of file
diff --git a/build/service/lib/update.php b/build/service/lib/update.php
deleted file mode 100644
index 967b7e3..0000000
--- a/build/service/lib/update.php
+++ /dev/null
@@ -1,92 +0,0 @@
-<?php
-
-	// Absolute root dir
-	$ABSROOT = dirname(__DIR__);
-
-
-
-
-	/* [1] Check needed files
-	=========================================================*/ {
-		$path = [
-			'cursus' => "$ABSROOT/../../tmp/cursus.json",
-			'period' => "$ABSROOT/../../tmp/period.json",
-		];
-
-		/* (1) cursus list */
-		if( !file_exists($path['cursus']) )
-			die(" * Missing tmp/cursus.json\n");
-
-		/* (2) period list */
-		if( !file_exists($path['period']) )
-			die(" * Missing tmp/period.json\n");
-
-	}
-
-
-	/* [2] Parse cursus list
-	=========================================================*/ {
-		/* (1) Read from file */
-		$clist = file_get_contents($path['cursus']);
-
-		/* (2) Manage error */
-		if( $clist == false )
-			die(" * Cannot read cursus file\n");
-
-		/* (3) Parse JSON */
-		$clist = json_decode($clist, true);
-
-		/* (4) Manage error */
-		if( $clist == null )
-			die(" * Cannot parse cursus file\n");
-
-	}
-
-
-	/* [3] Parse period list
-	=========================================================*/ {
-
-		/* (1) Read from file */
-		$plist = file_get_contents($path['period']);
-
-		/* (2) Manage error */
-		if( $plist == false )
-			die(" * Cannot read period file\n");
-
-		/* (3) Parse JSON */
-		$plist = json_decode($plist, true);
-
-		/* (4) Manage error */
-		if( $plist == null )
-			die(" * Cannot parse period file\n");
-
-	}
-
-
-
-	/* [4] Manage each cursus
-	=========================================================*/ {
-
-		/* (1) For each cursus */
-		foreach($clist as $cname=>$cvalue){
-
-			/* (1.2) Create a directory */
-			if( !file_exists("$ABSROOT/../../tmp/$cvalue") )
-				file_put_contents("$ABSROOT/../../tmp/$cvalue.ics", "");
-
-
-			/* (1) Download all images
-			---------------------------------------------------------*/
-			foreach($plist as $pvalue=>$pdate)
-				"http://sciences.univ-pau.fr/edt/diplomes/${cvalue}${pvalue}.png"; // image file
-
-
-		}
-
-
-	}
-
-
-
-
-
diff --git a/build/service/main.sh b/build/service/main.sh
deleted file mode 100644
index 1699c46..0000000
--- a/build/service/main.sh
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/bin/bash
-
-# Absolute root dir
-ABSROOT=$( dirname $(realpath $0) );
-
-
-
-# [1] Download the list of Diplomes
-#========================================================#
-# (1) Get the diplomes list #
-wget http://sciences.univ-pau.fr/edt/_ressource.js -qO $ABSROOT/../../tmp/cursus.js && echo "* downloaded successfully" || echo "* download failed" || exit 1;
-
-# (2) Get Period list #
-wget http://sciences.univ-pau.fr/edt/_periode.js -qO $ABSROOT/../../tmp/period.js && echo "* downloaded successfully" || echo "* download failed" || exit 1;
-
-
-
-
-# [2] Parse these lists
-#========================================================#
-# (1) Parse the diplomes list #
-php $ABSROOT/lib/parse.php cursus $ABSROOT/../../tmp/cursus.js && echo "* parsed successfully" || echo "* parsing failed" || exit 1;
-
-# (2) Parse the period list #
-php $ABSROOT/lib/parse.php period $ABSROOT/../../tmp/period.js && echo "* parsed successfully" || echo "* parsing failed" || exit 1;
-
-
-
-
-# [3] Update ICS files
-#========================================================#
-# (1) Create ICS files #
-php $ABSROOT/lib/update.php;
-
-# (2) Remove buffer data #
-rm -r $ABSROOT/../../tmp/*.ics
-
-
-
-
-# [X] Remove downloaded original files
-#========================================================#
-# (1) Remove cursus #
-rm $ABSROOT/../../tmp/cursus.js && echo "* removed successfully" || echo "* removing failed" || exit 1;
-
-# (2) Remove period #
-rm $ABSROOT/../../tmp/period.js && echo "* removed successfully" || echo "* removing failed" || exit 1;
-
diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..fa70fb0
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+sudo apt-get install php7.0-gd;
+sudo service apache2 restart;
\ No newline at end of file
diff --git a/public_html/index.php b/public_html/index.php
index 2559cc6..38d88f9 100644
--- a/public_html/index.php
+++ b/public_html/index.php
@@ -1,6 +1,13 @@
 <?php require_once '../autoloader.php';
 
+	use \service\Updater;
+
+
 	debug();
 
+	$upd = new Updater();
 
+	$upd->update();
+
+	// var_dump( imagecreatefrompng("http://sciences.univ-pau.fr/edt/diplomes/T0000000378S0000000000002.png") );
 	echo "bla";