hellothereum.module

<?php

/**
 * Implements hook_admin_form().
 */
function hellothereum_user_admin_form() {
  $form = array();

  $form['ethereum_user_register_drupal_deployed_contract_address'] = array(
    '#type' => 'textfield',
    '#title' => t('Deployed contract address for your Ethereum Drupal user registry'),
    '#default_value' => variable_get('ethereum_user_register_drupal_deployed_contract_address'),
  );

  $form['ethereum_user_register_drupal_deployed_contract_abi'] = array(
    '#type' => 'textarea',
    '#title' => t('Deployed contract ABI for your Ethereum Drupal user registry'),
    '#default_value' => variable_get('ethereum_user_register_drupal_deployed_contract_abi'),
  );

  $form['ethereum_user_register_drupal_fallback_node'] = array(
    '#type' => 'textfield',
    '#title' => t('Fallback Ethereum node'),
    '#default_value' => variable_get('ethereum_user_register_drupal_fallback_node', 'http://localhost:8545'),
  );

  $form['blockchain_Token_deployed_contract_address_fallback'] = array(
    '#type' => 'textfield',
    '#title' => t('Token: deployed contract address fallback'),
    '#default_value' => variable_get('blockchain_Token_deployed_contract_address_fallback'),
  );

  $form['blockchain_Token_deployed_contract_ABI'] = array(
    '#type' => 'textarea',
    '#title' => t('Token: deployed contract ABI'),
    '#default_value' => variable_get('blockchain_Token_deployed_contract_ABI'),
  );

  return system_settings_form($form);
}

function hellothereum_menu() {
  $items = array();

  $items['admin/hellothereum'] = array(
    'title' => 'Hellothereum',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('hellothereum_user_admin_form'),
    'access arguments' => array('administer ethereum'),
    'type' => MENU_NORMAL_ITEM,
  );

  $items['hellothereum/register'] = array(
    'title' => 'Register',
    'page callback' => 'hellothereum_register',
    'access arguments' => array('ethereum user'),
    'menu_name' => 'user-menu',
    'type' => MENU_NORMAL_ITEM,
  );

  $items['hellothereum/buy'] = array(
    'title' => 'Buy token',
    'page callback' => 'hellothereum_buy',
    'access arguments' => array('ethereum user'),
    'menu_name' => 'user-menu',
    'type' => MENU_NORMAL_ITEM,
  );

  return $items;
}

function hellothereum_permission() {
  return array(
    'ethereum user' => array('title' => t('Use Ethereum')),
    'administer ethereum' => array('title' => t('Administer Ethereum')),
  );
}

function hellothereum_buy() {
  global $user;
  $content = '';
    $client = user_load($user->uid); 
    //kpr($client); die;
    $content .= '<br><b>Client</b><br>hash: '.$client->hash.'<br>address: <span id="client-address"></span><br>eth balance : <span id="client-eth"></span><br>token balance: <span id="client-token"></span>';
    $content .= '<br>Password: <input type="text" id="eth-password" /> <input id="eth-buy" type="button" value="Buy 1 Token for 0.001 ether">';
    $content .= '<br>Contract token available : <span id="contract-token"></span>';
    drupal_add_js(array(
      'blockchain' => array(
        'token_deployed_contract_address_fallback' => variable_get('blockchain_Token_deployed_contract_address_fallback'),
        'token_deployed_contract_ABI' => variable_get('blockchain_Token_deployed_contract_ABI'),
        'ethereum_fallback' => variable_get('ethereum_user_register_drupal_fallback_node'),
        'clientHash' => $client->hash,
        'clientAddress' => $client->field_ethaddress['und'][0]['value'],
      ),
    ), 'setting');
    drupal_add_js(drupal_get_path('module', 'hellothereum') . '/js/web3.min.js', array('scope' => 'footer'));
    drupal_add_js(drupal_get_path('module', 'hellothereum') . '/js/ethereum_token.js', array('scope' => 'footer'));

    drupal_add_js(drupal_get_path('module', 'hellothereum').'/js/buffer.js');
    drupal_add_js(drupal_get_path('module', 'hellothereum').'/js/lodash.min.js');
    drupal_add_js(drupal_get_path('module', 'hellothereum').'/js/ethereumjs-tx-1.3.3.min.js');

  
    return $content;
}

/**
 * Implements hook_form().
 */
function hellothereum_user_form($form, &$form_state) {
  $form = array();
  global $user;
  $account = user_load($user->uid);
  $form['ethereum_user_address'] = array(
    '#title' => t('Ethereum address'),
    '#title_display' => 'invisible',
    '#type' => 'textfield',
    '#size' => 42,
    '#maxlength' => 42,
    '#default_value' => $account->field_ethaddress['und'][0]['value'], 
    '#description' => t('Ethereum addresses must begin with 0x and 40 hexadecimals characters must follow.'),
  );

  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => 'Submit',
  );

  $form['#attached']['css'] = array(
    drupal_get_path('module', 'hellothereum') . '/css/ethereum_user_form.css',
  );

  $form['#attached']['js'] = array(
    drupal_get_path('module', 'hellothereum') . '/js/ethereum_user_form.js',
  );

  return $form;
}

/**
 * Implements hook_form_submit().
 */
function hellothereum_user_form_submit($form, &$form_state) {
  $address = $form_state['input']['ethereum_user_address'];
  global $user;
  $account = user_load($user->uid);
  $account->field_ethaddress['und'][0]['value'] = $address;
  user_save($account);
}

function hellothereum_register() {

  // Current user (who is viewing $this_user, an admin or the same person).
  global $user;
  $output = array();
  $this_user = user_load($user->uid);
  $this_user_ethereum_address = $this_user->field_ethaddress['und'][0]['value'];

  // Ethereum user address.
  $address = '<div id="ethereum_user_address">';
  $address .= '<h2>' . t('Ethereum address') . '</h2>';
  $address .= '<p>';
  $address .= $this_user_ethereum_address ? $this_user_ethereum_address : t('Please add your Ethereum address');
  $address .= ' <a href="#">' . t('edit') . '</a>';
  $address .= '</p>';
  $address .= '</div>';
  $output['ethereum_user_address'] = array(
    '#type' => 'markup',
    '#markup' => $address,
  );
  $output['ethereum_user_address_form'] = drupal_get_form('hellothereum_user_form');

  if ($this_user_ethereum_address) {

    // User registry check.
    $registry = '<div id="ethereum_user_registry">';
    $registry  .= '<h2>' . t('Ethereum user registry') . '</h2>';
    $registry  .= '<div id="ethereum_user_registry_wait"><p>' . t('Please wait while we check if you are in our user registry on Ethereum...') . '</p></diV>';
    $registry  .= '<p id="ethereum_user_registry_validated">' . t('Yes, you are in our Ethereum user registry!') . '</p>';
    $register_link = ($user->uid == $this_user->uid) ? '<a href="#">' . t('To use Ethereum features with us, please sign our user registry.') . '</a>' : t('User did not sign the registry and you can not do it as an admin');
    $registry  .= '<p id="ethereum_user_registry_sign">' . $register_link . '</p>';
    $registry  .= '</div>';
    $output['ethereum_user_registry'] = array(
      '#type' => 'markup',
      '#markup' => $registry,
      '#attached' => array(
        'css' => array(
          drupal_get_path('module', 'hellothereum') . '/css/ethereum_user_registry.css',
        ),
        'js' => array(
          drupal_get_path('module', 'hellothereum') . '/js/ethereum_user_register_drupal.js',
        ),
      ),
    );

    // Generate user hash, if necessary.
    if (!$this_user->hash) {
      $data = array(
        '@name' => $this_user->name,
        '!id' => $this_user->uid,
      );
      $hash = user_hash_generate();
      $this_user = user_save($this_user, array('hash' => $hash));
    }

    // Pass variables to JS.
    drupal_add_js(array(
      'ethereum_user' => array(
        'contract' => array(
          'address' => variable_get('ethereum_user_register_drupal_deployed_contract_address'),
          'abi' => variable_get('ethereum_user_register_drupal_deployed_contract_abi'),
        ),
        'fallback_node' => variable_get('ethereum_user_register_drupal_fallback_node'),
        'token' => variable_get('ethereum_user_registry_list_token'),
        'user' => array(
          'hash' => $this_user->hash,
          'address' => $this_user_ethereum_address,
        ),
      ),
    ), 'setting');
    drupal_add_js(drupal_get_path('module', 'hellothereum') . '/js/web3.min.js', array('scope' => 'footer'));
  }
  return $output;
}