first commit

images/20170200-content.html

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+<div class="container-fluid bg-grey">
+  <div class="row">
+    <div class="col-sm-8">
+      <h2>A digital currency</h2>
+      <p>
+      Use cryptography.<br>
+      No "central bank".<br>
+      P2P network.<br>
+      </p>
+    </div>
+    <div class="col-sm-4 align-middle">
+       <img src="images/bitcoin.jpg" width="100%; height: auto"></img>
+    </div>
+  </div>
+</div>
+
+<div class="container-fluid">
+  <div class="row">
+    <div class="col-sm-4 align-middle">
+       <img src="images/wallet.png" height="300px"></img>
+    </div>
+    <div class="col-sm-8">
+      <h2>WALLET</h2>
+      <p>
+      Use cryptography.<br>
+      No "central bank".<br>
+      P2P network.<br>
+      </p>
+    </div>
+  </div>
+</div>
+
+<div class="container-fluid bg-grey">
+  <div class="row">
+    <div class="col-sm-8">
+      <h2>Transaction</h2>
+      <p>
+When Bob is sending 42 <span class="glyphicon glyphicon-bitcoin"></span> to Alice, the bitcoin protocol is creating a transaction.<br> 
+A transaction is the balance between his Inputs and his Outputs.
+<ul>
+  <li>First the network needs to be sure that Bob has got enough <span class="glyphicon glyphicon-bitcoin"></span> in his wallet.<br>So Bob will include a list of transactions that he has received before.<br>This is the inputs of the transactions.<br>For example, previous transaction's amount are 10, 25 and another 10, so total inputs are 45 <span class="glyphicon glyphicon-bitcoin"></span></li>
+   <li>As the input's sum is superior to the amount of the transaction, an ouput is added.<br>This output is the change to Bob.<br>In the example, this 3 <span class="glyphicon glyphicon-bitcoin"></span></li>
+  <li>Fees are took by the network to process the transaction.<br>Let say it will take 0.5<span class="glyphicon glyphicon-bitcoin"></span>.<br>This is another ouput</li>
+  <li>So Alice will get only a part of the transaction's amount.<br>this the last output, 41.5<span class="glyphicon glyphicon-bitcoin"></span></li>
+</ul>
+So the transaction is a made with :
+<ul>
+  <li>Inputs : a list of previous transactions that bob has received</li>
+  <li>Outputs : a list of amounts to send to Alice, Bob, and fees</li>
+  <li>A timestamp</li>
+</ul>
+Then the wallet will broadcast the transaction on the network.<br>
+It will be sent to the area called "mempool".<br>
+Nodes of the network will validate the transaction by verfying the Inputs and the Ouputs.<br>
+A hash of the transaction is computed.<br>
+So the transaction is sealed.
+      </p>
+    </div>
+    <div class="col-sm-4 align-middle">
+       <img src="images/bob_to_alice.gif" width="100%; height: auto"></img>
+    </div>
+  </div>
+</div>
+
+<div class="container-fluid">
+  <div class="row">
+    <div class="col-sm-4">
+       <img src="images/tx2block.gif" width="100%; height: auto"></img>
+    </div>
+    <div class="col-sm-8">
+      <h2>Block</h2>
+      <p>
+Then the bitcoin protocol is grouping validated transactions in blocks.<br>
+So a block is an array of transactions.<br>
+A block is made with :
+<ul>
+  <li>An array of transactions.<br>
+That's what my script is drawing.<br>
+Running the transactions array, it is computing the sum of each outputs of each transaction.<br>
+Then, it draws a rectangle for each sum.<br>
+  </li>
+  <li>A "proof of work".<br>The miner is computing a special hash that depends on the array of transaction and that will answer to a constraint.<br>This hash is very difficult to compute. In fact it is not really computed, the miner must test every value until he find the solution.<br></li>
+<li>That why the network will give him a reward.<br>This is a special transaction that has no inputs.</li>
+</ul>
+      </p>
+    </div>
+
+  </div>
+</div>
+
+<div class="container-fluid bg-grey">
+  <div class="row">
+    <div class="col-sm-8">
+      <h2>Blockchain</h2>
+      <p>
+Each block has a hash and a reference to the ihash of the previous block.<br>
+So blocks are chained together.<br>
+      </p>
+    </div>
+
+    <div class="col-sm-4">
+       <img src="/images/loading.gif" width="100%; height: auto"></img>
+    </div>
+
+  </div>
+</div>

images/R_TOPISTO_image.php

@@ -0,0 +1,21 @@
+<?php
+
+$type='spline';
+if (isset($_REQUEST['type'])) $type=$_REQUEST['type'];
+
+$files = glob('/opt/TOPISTO/data/'.$type.'/*.png');
+usort($files, function($a, $b) {
+    return filemtime($a) > filemtime($b);
+});
+
+$block_image = @imagecreatefrompng($files[0]);
+
+// ---
+// --- envoyer l'image au navigateur
+// ---
+header("Content-Type: image/png");
+imagepng($block_image);
+
+imagedestroy($block_image);
+
+?>

images/block_image.php

@@ -0,0 +1,231 @@
+<?php
+
+function tri_filemtime( $a, $b ) { return filemtime($a) - filemtime($b); }
+
+// ---
+// --- La config globale
+// ---
+chdir('/opt/TOPISTO/apps');
+require_once '/opt/TOPISTO/apps/global/inc/config.php';
+
+// ---
+// --- External dependances
+// ---
+require TOPISTO_PATH.'/ressources/vendor/autoload.php';
+
+// ---
+// --- Internal dependances
+// ---
+require_once APP_PATH.'/blockchain/inc/block.php';
+
+// ---
+// --- Par défaut on cherche le dernier block
+// ---
+$block_hash = '*';
+$methode='hasard';
+$mode=9999;
+
+// ---
+// --- Le cas échéant, on cherche block passé en argument
+// ---
+if (isset($_REQUEST['hash']))    $block_hash = $_REQUEST['hash'];
+if (isset($_REQUEST['methode'])) $methode    = $_REQUEST['methode'];
+if (isset($_REQUEST['mode']))    $mode       = intval($_REQUEST['mode']);
+
+$img = null;
+
+// --- 
+// --- Le cas général : on trouve le fichier image demandé
+// ---
+$imagefilename  = DATA_PATH.'/'.$methode.'/'.$block_hash;
+if ($mode != 9999) $imagefilename .= '-'.$mode;
+$imagefilename .= '.png';
+if (file_exists($imagefilename)) $img = imagecreatefrompng($imagefilename); 
+
+// ---
+// --- "strict" est un flag qui indique que l'on veut précisément
+// ---             ce que les paramètres demandent
+// ---
+if (($img==null)&&(!isset($_REQUEST['strict'])))
+{  
+  //
+  // On n'a pas passé de HASH
+  // 
+  if (($img==null)&&(!isset($_REQUEST['hash'])))
+  {
+    //
+    // On prend le dernier connu pour la méthode et le mode
+    // 
+    $myarray = glob(DATA_PATH.'/'.$methode.'/*-'.$mode.'.png');
+    if (isset($myarray[0]))
+    {
+      usort( $myarray, tri_filemtime );
+      $img = imagecreatefrompng($myarray[0]);
+    }
+    //
+    // On prend le dernier connu pour la méthode tout mode confondu
+    // 
+    if ($img==null)
+    {
+      $myarray = glob(DATA_PATH.'/'.$methode.'/*.png');
+      if (isset($myarray[0]))
+      {
+        usort( $myarray, tri_filemtime );
+        $img = imagecreatefrompng($myarray[0]);
+      }
+    }
+  }
+
+  //
+  // On a passé un HASH
+  //
+  if (($img==null)&&(isset($_REQUEST['hash'])))
+  {
+    //
+    // On cherche le bon HASH et la bonne méthode
+    //
+    $imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'.png';
+    if (($img==null)&&(file_exists($imagefilename)))
+    {
+      $img = imagecreatefrompng($imagefilename);
+    } 
+    //
+    // En fait on s'en fiche de la méthode tant qu'on a le bon HASH
+    //
+    $imagefilename = DATA_PATH.'/hasard/'.$block_hash.'.png';
+    if (($img==null)&&(file_exists($imagefilename)))
+    {
+      $img = imagecreatefrompng($imagefilename);
+    } 
+  }  
+}
+
+//
+// On n'a rien trouvé, donc on dessine ce qui est demandé
+//
+if ($img==null)
+{
+  if ($mode == 9999) $mode = 0;
+  if ($block_hash == '*') $block_hash = blockchain::getLastCacheBlockHash();
+  if ($methode == 'hasard') $methode = 'treemap';
+
+  $imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'.png';
+
+  $the_block = blockchain::getBlockWithHash($block_hash);
+  if ($the_block === FALSE) die();
+
+  $the_name = blockchain::hash2SpecialName($the_block->hash);
+  if ($the_name == $the_block->hash) $the_name ='';
+
+  $bandeau     = 50;
+  $marge       = 25;
+  $text_border = 20;
+  $width       = GRAPH_WIDTH;
+  $height      = GRAPH_HEIGHT;
+
+  // Pour que l'image simple ait les proportions que l'image full
+  $width  = $marge + ($width*2)  + (2*$text_border);
+  $height = $marge + ($height*2);
+
+  $img_w = $width;
+  $img_h = $height+(2*$bandeau);
+
+  $type=2;
+  if (count($the_block->tx)==1) $type=4;
+
+  // création d'une image plus haute pour inclure bandeaux haut et bas
+  $img = imagecreatetruecolor($img_w, $img_h);
+
+  $param0 = blockchain::DrawBlockHeaderFooter($the_block, $img, $bandeau);
+
+  $parametres = [];
+  $parametres['x'] = 0;
+  $parametres['y'] = $bandeau;
+  $parametres['width'] = $width;
+  $parametres['height'] = $height;
+  $parametres['methode'] = $mode;
+  $parametres['type'] = $type;
+  $parametres['transparent_color'] = $param0[0];
+  $parametres['background_color'] = $param0[1];
+  $parametres['font_color'] = $param0[2];
+  $parametres['fontname'] = $param0[3];
+  $parametres['font_RGB']       = $param0[4];
+  $parametres['background_RGB'] = $param0[5];
+  
+  switch($methode)
+  {
+    case 'veraMolnar':
+      require_once APP_PATH.'/methode/veraMolnar/inc/treemap.php';
+      topisto_veraMolnar::DrawBlock($the_block, $img, $parametres);
+      break;
+
+    case 'treemapV2':
+      require_once APP_PATH.'/methode/treemapV2/inc/treemap.php';
+      topisto_treemap::DrawBlock($the_block, $img, $parametres);
+      break;
+
+    case 'treemap_fuzzy':
+      require_once APP_PATH.'/methode/treemap_fuzzy/inc/treemap.php';
+      topisto_treemap_fuzzy::DrawBlock($the_block, $img, 0, $bandeau, $width, $height, $mode, $type);
+      break;
+
+    case 'spline': 
+      require_once APP_PATH.'/methode/spline/inc/splines.php';
+      topisto_spline::DefaultDrawBlock($the_block, $img, 0, $bandeau, $width, $height, $mode, $type);
+      break;
+
+    case 'spline_2':
+      require_once APP_PATH.'/methode/spline/inc/splines.php';
+      topisto_spline::DrawBlock($the_block, $img, 0, $bandeau, $width, $height, $mode, 200, $type);
+      break;
+  
+    case 'treemap' :
+    default:
+      require_once APP_PATH.'/methode/treemap/inc/treemap.php';
+      topisto_treemap::DrawBlock($the_block, $img, 0, $bandeau, $width, $height, $mode, $type);
+      break;
+  }
+
+  // Les textes
+  /*
+   * INUTILE depuis que blockchain::DrawBlockHeaderFooter ajoute elle-même les textes
+   * 
+  putenv('GDFONTPATH='.RESS_PATH.'/fonts/');
+  $font = 'DS-DIGIB.TTF';
+
+  $fontColor = imagecolorallocate($img, 227,227,153);
+  $the_texte = "Height : ".$the_block->height;
+  imagettftext($img,18,   0, 5, $bandeau-5, $fontColor, $font, $the_texte);
+  $the_texte = "Inputs : ".$the_block->topisto_inputs;
+  if ($type == 4) $the_texte = "Reward : ".$the_block->topisto_reward;
+  imagettftext($img,15,   0, 5, $bandeau+$height+18, $fontColor, $font, $the_texte);
+
+  if ($the_name == '') $the_name = date('Ymd H:m:s', $the_block->time);
+  $bbox = imagettfbbox(14, 0, $font, $the_name);
+  imagettftext($img, 14, 0, ($img_w-3)-($bbox[2]-$bbox[0]), ($bandeau-5), $fontColor, $font, $the_name);
+  */
+
+  // Sauvegarder l'image et ajouter 
+  //   - un lien sur le mode
+  //   - un lien dans le dossier "hasard"
+  $imagefilename2 = str_replace(".png","-$mode.png", $imagefilename);
+  imagepng($img,$imagefilename2);
+
+  if (!file_exists($imagefilename)) link($imagefilename2, $imagefilename);
+
+  $imagefilename2 = str_replace("methode/$methode/","methode/hasard/", $imagefilename);
+  if (!file_exists($imagefilename2)) link($imagefilename, $imagefilename2);
+}
+
+$seconds_to_cache = 7200;
+$ts = gmdate("D, d M Y H:i:s", time() + $seconds_to_cache) . " GMT";
+header("Expires: $ts");
+header("Pragma: cache");
+header("Cache-Control: max-age=$seconds_to_cache");
+header('Content-Type: image/png');
+
+imagepng($img);
+
+imagedestroy($img);
+
+?>

images/cached_block_image.php

@@ -0,0 +1,53 @@
+<?php
+
+// ---
+// --- La config globale
+// ---
+chdir('/opt/TOPISTO/apps');
+require_once '/opt/TOPISTO/apps/global/inc/config.php';
+
+// ---
+// --- External dependances
+// ---
+require TOPISTO_PATH.'/ressources/vendor/autoload.php';
+
+// ---
+// --- Internal dependances
+// ---
+require_once APP_PATH.'/blockchain/inc/block.php';
+
+// ---
+// --- Par défaut on cherche le dernier block
+// ---
+$block_hash = '*';
+
+// ---
+// --- Le cas échéant, on cherche block passé en argument
+// ---
+if (isset($_REQUEST['hash'])) $block_hash = $_REQUEST['hash'];
+
+$img = null;
+
+$myarray = glob(DATA_PATH.'/hasard/'.$block_hash.'.png');
+if (isset($myarray[0]))
+{
+        usort( $myarray, function( $a, $b ) { return filemtime($a) - filemtime($b); } );
+        $img = imagecreatefrompng($myarray[0]);
+
+        $seconds_to_cache = 7200;
+        $ts = gmdate("D, d M Y H:i:s", time() + $seconds_to_cache) . " GMT";
+        header("Expires: $ts");
+        header("Pragma: cache");
+        header("Cache-Control: max-age=$seconds_to_cache");
+        header('Content-Type: image/png');
+
+        imagepng($img);
+
+        imagedestroy($img);
+
+        exit(0);
+}
+
+require_once('block_image.php');
+
+?>

images/debug_block_image.php

@@ -0,0 +1,109 @@
+<?php
+
+// ---
+// --- La config globale
+// ---
+chdir('/opt/TOPISTO/apps');
+require_once '/opt/TOPISTO/apps/global/inc/config.php';
+
+// ---
+// --- External dependances
+// ---
+require TOPISTO_PATH.'/ressources/vendor/autoload.php';
+
+// ---
+// --- Internal dependances
+// ---
+require_once APP_PATH.'/blockchain/inc/block.php';
+
+// ---
+// --- Par défaut on cherche le dernier block
+// ---
+$block_hash = '*';
+$methode='hasard';
+$mode=9999;
+
+// ---
+// --- Le cas échéant, on cherche block passé en argument
+// ---
+if (isset($_REQUEST['hash']))    $block_hash = $_REQUEST['hash'];
+if (isset($_REQUEST['methode'])) $methode    = $_REQUEST['methode'];
+if (isset($_REQUEST['mode']))    $mode       = intval($_REQUEST['mode']);
+
+//$methode = str_replace('full_', '', $methode);
+
+$img = null;
+
+$imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'-'.$mode.'.png';
+echo $imagefilename;
+if (file_exists($imagefilename)) echo ' <font color="green">OK</font><br>'.PHP_EOL;
+else echo ' <font color="red">KO</font><br>'.PHP_EOL;
+
+//
+// "strict" est un flag qui indique que l'on veut précisément
+//             ce que les paramètres demandent
+//
+if (($img==null)&&(!isset($_REQUEST['strict'])))
+{  
+  //
+  // On n'a pas passé de HASH
+  // 
+  if (($img==null)&&(!isset($_REQUEST['hash'])))
+  {
+    //
+    // On prend le dernier connu pour la méthode et le mode
+    // 
+    $myarray = glob(DATA_PATH.'/'.$methode.'/*-'.$mode.'.png');
+    if (isset($myarray[0]))
+    {
+      usort( $myarray, function( $a, $b ) { return filemtime($a) - filemtime($b); } );
+      echo $myarray[0].' <font color="green">OK</font><br>'.PHP_EOL;
+      $img=true;
+    }
+    //
+    // On prend le dernier connu pour la méthode tout mode confondu
+    // 
+    if ($img==null)
+    {
+      $myarray = glob(DATA_PATH.'/'.$methode.'/*.png');
+      if (isset($myarray[0]))
+      {
+        usort( $myarray, function( $a, $b ) { return filemtime($a) - filemtime($b); } );
+        echo $myarray[0].' <font color="green">OK</font><br>'.PHP_EOL;
+        $img=true;
+      }
+    }
+  }
+
+  //
+  // On a passé un HASH
+  //
+  if (($img==null)&&(isset($_REQUEST['hash'])))
+  {
+    //
+    // On cherche le bon HASH et la bonne méthode
+    //
+    $imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'.png';
+    if (($img==null)&&(file_exists($imagefilename)))
+    {
+      echo $imagefilename.' <font color="green">OK</font><br>'.PHP_EOL;
+      $img=true;
+    }
+    //
+    // En fait on s'en fiche de la méthode tant qu'on a le bon HASH
+    //
+    $imagefilename = DATA_PATH.'/hasard/'.$block_hash.'.png';
+    if (($img==null)&&(file_exists($imagefilename)))
+    {
+      echo $imagefilename.' <font color="green">OK</font><br>'.PHP_EOL;
+      $img=true;
+    }
+  }  
+}
+
+//
+// On n'a rien trouvé, donc on dessine ce qui est demandé
+//
+if ($img==null) echo '<font color="red">KO</font><br>';
+
+?>

images/full_block_image.php

@@ -0,0 +1,237 @@
+<?php
+
+// ---
+// --- La config globale
+// ---
+chdir('/opt/TOPISTO/apps');
+require_once '/opt/TOPISTO/apps/global/inc/config.php';
+
+// ---
+// --- External dependances
+// ---
+require TOPISTO_PATH.'/ressources/vendor/autoload.php';
+
+// ---
+// --- Internal dependances
+// ---
+require_once APP_PATH.'/blockchain/inc/block.php';
+
+// ---
+// --- Par défaut on cherche le dernier block
+// ---
+$block_hash = '*';
+$methode='hasard';
+$mode=9999;
+
+// ---
+// --- Le cas échéant, on cherche block passé en argument
+// ---
+if (isset($_REQUEST['hash']))    $block_hash = $_REQUEST['hash'];
+if (isset($_REQUEST['methode'])) $methode    = $_REQUEST['methode'];
+if (isset($_REQUEST['mode']))    $mode       = intval($_REQUEST['mode']);
+
+//$methode = str_replace('full_', '', $methode);
+
+$img = null;
+
+$imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'-'.$mode.'.png';
+if (file_exists($imagefilename))
+{
+  $img = imagecreatefrompng($imagefilename);
+} 
+
+//
+// "strict" est un flag qui indique que l'on veut précisément
+//             ce que les paramètres demandent
+//
+if (($img==null)&&(!isset($_REQUEST['strict'])))
+{  
+  //
+  // On n'a pas passé de HASH
+  // 
+  if (($img==null)&&(!isset($_REQUEST['hash'])))
+  {
+    //
+    // On prend le dernier connu pour la méthode et le mode
+    // 
+    $myarray = glob(DATA_PATH.'/'.$methode.'/*-'.$mode.'.png');
+    if (isset($myarray[0]))
+    {
+      usort( $myarray, function( $a, $b ) { return filemtime($a) - filemtime($b); } );
+      $img = imagecreatefrompng($myarray[0]);
+    }
+    //
+    // On prend le dernier connu pour la méthode tout mode confondu
+    // 
+    if ($img==null)
+    {
+      $myarray = glob(DATA_PATH.'/'.$methode.'/*.png');
+      if (isset($myarray[0]))
+      {
+        usort( $myarray, function( $a, $b ) { return filemtime($a) - filemtime($b); } );
+        $img = imagecreatefrompng($myarray[0]);
+      }
+    }
+  }
+
+  //
+  // On a passé un HASH
+  //
+  if (($img==null)&&(isset($_REQUEST['hash'])))
+  {
+    //
+    // On cherche le bon HASH et la bonne méthode
+    //
+    $imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'.png';
+    if (($img==null)&&(file_exists($imagefilename)))
+    {
+      $img = imagecreatefrompng($imagefilename);
+    } 
+    //
+    // En fait on s'en fiche de la méthode tant qu'on a le bon HASH
+    //
+    $imagefilename = DATA_PATH.'/hasard/'.$block_hash.'.png';
+    if (($img==null)&&(file_exists($imagefilename)))
+    {
+      $img = imagecreatefrompng($imagefilename);
+    } 
+  }  
+}
+
+//
+// On n'a rien trouvé, donc on dessine ce qui est demandé
+//
+if ($img==null)
+{
+  if ($mode == 9999) $mode = 0;
+  if ($block_hash == '*') $block_hash = blockchain::getLastCacheBlockHash();
+
+  $imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.'.png';
+
+  switch($methode)
+  {
+    case 'full_treemap_fuzzy':
+      require_once APP_PATH.'/methode/treemap_fuzzy/inc/treemap.php';
+      $imagefilename = DATA_PATH.'/full_treemap_fuzzy/'.$block_hash.'.png';
+      break;
+
+    case 'full_spline':
+      require_once APP_PATH.'/methode/spline/inc/splines.php';
+      $imagefilename = DATA_PATH.'/full_spline/'.$block_hash.'.png';
+      break;
+
+    case 'full_treemap' :
+      default:
+      require_once APP_PATH.'/methode/treemap/inc/treemap.php';
+      $imagefilename = DATA_PATH.'/full_treemap/'.$block_hash.'-'.$mode.'.png';
+  }
+
+  $the_block = blockchain::getBlockWithHash($block_hash);
+  if ($the_block === FALSE) die();
+
+  $the_name = blockchain::hash2SpecialName($the_block->hash);
+  if ($the_name == $the_block->hash) $the_name ='';
+
+  $bandeau     = 50;
+  $marge       = 25;
+  $text_border = 20;
+  $width       = GRAPH_WIDTH;
+  $height      = GRAPH_HEIGHT;
+
+  $img_w = $marge + ($width*2)  + (2*$text_border);
+  $img_h = $marge + ($height*2) + (2*$bandeau);
+
+  // création d'une image plus haute pour inclure bandeaux haut et bas
+  $img = imagecreatetruecolor( $img_w, $img_h);
+
+  // Les parties du block : inputs, outputs, fees, reward
+  switch($methode)
+  {
+    case 'full_treemap_fuzzy':
+      topisto_treemap_fuzzy::DrawBlock($the_block, $img,     $text_border + 0, $bandeau, $width, $height, $mode, 2);
+      topisto_treemap_fuzzy::DrawBlock($the_block, $img, $text_border+$marge+$width, $bandeau, $width, $height, $mode, 1);
+      topisto_treemap_fuzzy::DrawBlock($the_block, $img,       $text_border+0, $marge+$height + $bandeau, $width, $height, $mode, 3);
+      topisto_treemap_fuzzy::DrawBlock($the_block, $img, $text_border+$marge+$width, $marge+$height + $bandeau, $width, $height, $mode, 4);
+      break;
+
+    case 'full_spline':
+      $type=2;
+      $x0 = $text_border; $y0 = $bandeau;
+      topisto_spline::DefaultDrawBlock($the_block, $img, $x0, $y0, $width, $height, $type);
+
+      $type=1;
+      $x0 = $text_border+$marge+$width; $y0 = $bandeau;
+      topisto_spline::DefaultDrawBlock($the_block, $img, $x0, $y0, $width, $height, $type);
+
+      $type=3;
+      $x0 = $text_border; $y0 = $marge+$height+$bandeau;
+      topisto_spline::DefaultDrawBlock($the_block, $img, $x0, $y0, $width, $height, $type);
+
+      $type=4;
+      $x0 = $text_border+$marge+$width; $y0 = $marge+$height+$bandeau;
+      topisto_spline::DefaultDrawBlock($the_block, $img, $x0, $y0, $width, $height, $type);
+      break;
+
+    case 'full_treemap':
+    default:
+      topisto_treemap::DrawBlock($the_block, $img,     $text_border + 0, $bandeau, $width, $height, $mode, 2);
+      topisto_treemap::DrawBlock($the_block, $img, $text_border+$marge+$width, $bandeau, $width, $height, $mode, 1);
+      topisto_treemap::DrawBlock($the_block, $img,       $text_border+0, $marge+$height + $bandeau, $width, $height, $mode, 3);
+      topisto_treemap::DrawBlock($the_block, $img, $text_border+$marge+$width, $marge+$height + $bandeau, $width, $height, $mode, 4);
+      break;
+  }
+
+  blockchain::DrawBlockHeaderFooter($the_block, $img, $bandeau);
+
+  $fond = imagecolorallocate($img, 40, 40, 40);
+  imagefilledrectangle($img, 0, $bandeau, $text_border, $img_h-$bandeau, $fond);
+  imagefilledrectangle($img, $img_w-$text_border, $bandeau, $img_w, $img_h-$bandeau, $fond);
+  imagefilledrectangle($img, $text_border+$width, $bandeau, $text_border+$marge+$width, $img_h-$bandeau, $fond);
+  imagefilledrectangle($img, 0, $bandeau+$height, $img_w - $text_border, $bandeau+$marge+$height, $fond);
+
+  // Les textes
+  putenv('GDFONTPATH='.RESS_PATH.'/fonts/');
+  $font = 'DS-DIGIB.TTF';
+
+  $fontColor = imagecolorallocate($img, 158,227,253);
+  $fontColor = imagecolorallocate($img, 227,253,158);
+  $fontColor = imagecolorallocate($img, 227,227,153);
+  
+  $the_texte = "Height : ".$the_block->height;
+  imagettftext($img,18,  0, 5, $bandeau-5, $fontColor, $font, $the_texte);
+  $the_texte = "Inputs : ".$the_block->topisto_inputs;
+  imagettftext($img,15, 90, $text_border-3, $bandeau+$height, $fontColor, $font, $the_texte);
+  $the_texte = "Outputs : ".$the_block->topisto_outputs;
+  imagettftext($img,15, 90, $text_border+$width+$marge-3, $bandeau+$height, $fontColor, $font, $the_texte);
+  $the_texte = "Fees : ".$the_block->topisto_fees;
+  imagettftext($img,15, 90, $text_border-3, $bandeau+(2*$height)+$marge-3, $fontColor, $font, $the_texte);
+  $the_texte = "Reward : ".$the_block->topisto_reward;
+  imagettftext($img,15, 90, $text_border+$width+$marge-3, $bandeau+(2*$height)+$marge-3, $fontColor, $font, $the_texte);
+
+  if ($the_name == '') $the_name = date('Ymd H:m:s', $the_block->time);
+  $bbox = imagettfbbox(14, 0, $font, $the_name);
+  imagettftext($img, 14, 0, ($img_w-3)-($bbox[2]-$bbox[0]), ($bandeau-5), $fontColor, $font, $the_name);
+
+  // Sauvegarder l'image et ajouter 
+  //   - un lien sur le mode
+  //   - un lien dans le dossier "hasard"
+  $imagefilename2 = str_replace(".png","-$mode.png", $imagefilename);
+  imagepng($img,$imagefilename2);
+
+  if (!file_exists($imagefilename)) link($imagefilename2, $imagefilename);
+
+  $imagefilename2 = str_replace("methode/$methode/","methode/hasard/", $imagefilename);
+  if (!file_exists($imagefilename2)) link($imagefilename, $imagefilename2);
+}
+
+$seconds_to_cache = 7200;
+$ts = gmdate("D, d M Y H:i:s", time() + $seconds_to_cache) . " GMT";
+header("Expires: $ts");
+header("Pragma: cache");
+header("Cache-Control: max-age=$seconds_to_cache");
+header('Content-Type: image/png');
+
+imagepng($img);
+imagedestroy($img);
+
+?>

images/logo.php

@@ -0,0 +1,29 @@
+<?php
+
+$alea=rand(0,100);
+
+$logo='topisto_vert.png';
+
+if ($alea > 30)
+{
+  $files = glob('logo/medium/*/topisto_vert.png');
+  usort($files, function($a, $b) {
+    return filemtime($a) > filemtime($b);
+  });
+
+  shuffle($files);
+ 
+  $logo = $files[0];
+}
+
+$block_image = @imagecreatefrompng($logo);
+
+// ---
+// --- envoyer l'image au navigateur
+// ---
+header("Content-Type: image/png");
+imagepng($block_image);
+
+imagedestroy($block_image);
+
+?>

images/logo/gmic.sh

@@ -0,0 +1,4 @@
+for toto in rouge vert 
+do 
+  gmic ../topisto_$toto.png $@ -output topisto_$toto.png 
+done