Re-adding LTC/usd to website ministats header

* Use tickerupdate.php cron to update setting value
* Added new configuration variables for ticket updates
* Added some missing configuration vars for some URLs

cronjobs/tickerupdate.php

@@ -0,0 +1,36 @@
+#!/usr/bin/php
+<?php
+
+/*
+
+Copyright:: 2013, Sebastian Grewe
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+ */
+
+// Include all settings and classes
+require_once('shared.inc.php');
+
+// Include additional file not set in autoloader
+require_once(BASEPATH . CLASS_DIR . '/tools.class.php');
+
+verbose("Running ticket updates\n");
+if ($aData = $tools->getApi($config['price']['url'], $config['price']['target'])) {
+  if (!$setting->setValue('price', $aData['ticker']['avg']))
+    verbose("ERR Table update failed");
+} else {
+  verbose("ERR Failed download JSON data from " . $config['price']['url'].$config['price']['target'] . "\n");
+}
+
+?>

public/include/autoloader.inc.php

@@ -13,4 +13,4 @@ require_once(CLASS_DIR . '/share.class.php');
 require_once(CLASS_DIR . '/worker.class.php');
 require_once(CLASS_DIR . '/statistics.class.php');
 require_once(CLASS_DIR . '/transaction.class.php');
-require_once(CLASS_DIR . '/settings.class.php');
+require_once(CLASS_DIR . '/setting.class.php');

public/include/classes/setting.class.php

@@ -4,7 +4,7 @@
 if (!defined('SECURITY'))
   die('Hacking attempt');
 
-class Settings {
+class Setting {
   public function __construct($debug, $mysqli, $salt) {
     $this->debug = $debug;
     $this->mysqli = $mysqli;
@@ -13,7 +13,7 @@ class Settings {
   }
 
   public function getValue($name) {
-    $query = $this->mysqli->prepare("SELECT value FROM $this->table WHERE setting=? LIMIT 1");
+    $query = $this->mysqli->prepare("SELECT value FROM $this->table WHERE name=? LIMIT 1");
     if ($query) {
       $query->bind_param('s', $name);
       $query->execute();
@@ -26,6 +26,19 @@ class Settings {
     }
     return $value;
   }
+
+  public function setValue($name, $value) {
+    $stmt = $this->mysqli->prepare("
+      INSERT INTO $this->table (name, value)
+      VALUES (?, ?)
+      ON DUPLICATE KEY UPDATE value = ?
+      ");
+    if ($stmt && $stmt->bind_param('sss', $name, $value, $value) && $stmt->execute())
+      return true;
+    $this->debug->append("Failed to set $name to $value");
+    echo $this->mysqli->error;
+    return false;
+  }
 }
 
-$settings = new Settings($debug, $mysqli, SALT);
+$setting = new Setting($debug, $mysqli, SALT);

public/include/classes/tools.class.php

@@ -0,0 +1,41 @@
+<?php
+
+// Make sure we are called from index.php
+if (!defined('SECURITY'))
+  die('Hacking attempt');
+
+class Tools {
+  public function __construct($debug) {
+    $this->debug = $debug;
+  }
+
+  /**
+   * Fetch JSON data from an API
+   * @param url string API URL
+   * @param target string API method
+   * @param auth array Optional authentication data to be sent with
+   * @return dec array JSON decoded PHP array
+   **/
+  public function getApi($url, $target, $auth=NULL) {
+    static $ch = null;
+    static $ch = null;
+    if (is_null($ch)) {
+      $ch = curl_init();
+      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+      curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; BTCE PHP client; '.php_uname('s').'; PHP/'.phpversion().')');
+    }
+    curl_setopt($ch, CURLOPT_URL, $url . $target);
+    // curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
+
+    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
+
+    // run the query
+    $res = curl_exec($ch);
+    if ($res === false) throw new Exception('Could not get reply: '.curl_error($ch));
+    $dec = json_decode($res, true);
+    if (!$dec) throw new Exception('Invalid data received, please make sure connection is working and requested API exists');
+    return $dec;
+  }
+}
+
+$tools = new Tools($debug);

public/include/config/global.inc.dist.php

@@ -21,11 +21,17 @@ define('DEBUG', 0);
 define('SALT', 'PLEASEMAKEMESOMETHINGRANDOM');
 
 $config = array(
+  'price' => array(
+    'url' =>     'https://btc-e.com/api/2',
+    'target' =>  '/ltc_usd/ticker'
+  ),
   'website' => array(
     'name' => 'The Pool',
     'slogan' => 'Resistance is futile',
     'email' => 'test@example.com',  // Mail address used for notifications
   ),
+  'blockexplorer' => 'http://explorer.litecoin.net/search?q=',        // URL for block searches, prefixed to each block number
+  'chaininfo' => 'http://allchains.info',                             // Link to Allchains for Difficulty information
   'fees' => 0,
   'difficulty' => '31',         // Target difficulty for this pool as set in pushpoold json
   'reward' => '50',             // Reward for finding blocks, fixed value but changes someday

public/include/smarty_globals.inc.php

@@ -23,8 +23,9 @@ $aGlobal = array(
   'fees' => $config['fees'],
   'confirmations' => $config['confirmations'],
   'reward' => $config['reward'],
-  'blockexplorer' => 'http://explorer.litecoin.net/search?q=',
-  'chaininfo' => 'http://allchains.info'
+  'price' => $setting->getValue('price'),
+  'blockexplorer' => $config['blockexplorer'],
+  'chaininfo' => $config['chaininfo']
 );
 
 // We don't want these session infos cached

public/templates/mmcFE/global/header.tpl

@@ -4,6 +4,7 @@
           <div id="ministats">
             <table border="0">
               <tr>
+                <td><li>LTC/usd: {$GLOBAL.price}&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                 <td><li>Pool Hashrate: {$GLOBAL.hashrate / 1000} MH/s&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                 <td><li>Pool Sharerate: {$GLOBAL.sharerate} Shares/s&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                 <td><li>Pool Workers: {$GLOBAL.workers}&nbsp;&nbsp;&nbsp;&nbsp;</li></td>