4113e05a10
This will allow users to change the API url, added coinchose as an example as pointed out by @vias79 . * tools class detects the API type * getPrice returns the price based on API URL parsed Fixes #236
86 lines
2.5 KiB
PHP
86 lines
2.5 KiB
PHP
<?php
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// Make sure we are called from index.php
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if (!defined('SECURITY'))
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die('Hacking attempt');
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/**
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* Helper class for our cronjobs
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* Implements some common cron tasks outside
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* the scope of our web application
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**/
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class Tools extends Base {
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/**
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* Fetch JSON data from an API
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* @param url string API URL
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* @param target string API method
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* @param auth array Optional authentication data to be sent with
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* @return dec array JSON decoded PHP array
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**/
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private function getApi($url, $target, $auth=NULL) {
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static $ch = null;
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static $ch = null;
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if (is_null($ch)) {
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; PHP client; '.php_uname('s').'; PHP/'.phpversion().')');
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}
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curl_setopt($ch, CURLOPT_URL, $url . $target);
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// curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
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// run the query
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$res = curl_exec($ch);
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if ($res === false) throw new Exception('Could not get reply: '.curl_error($ch));
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$dec = json_decode($res, true);
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if (!$dec) throw new Exception('Invalid data received, please make sure connection is working and requested API exists');
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return $dec;
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}
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/**
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* Detect the API to properly extract information
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* @param url string API URL
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* @return data string API type
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**/
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private function getApiType($url) {
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if (preg_match('/coinchoose.com/', $url)) {
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return 'coinchose';
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} else if (preg_match('/btc-e.com/', $url)) {
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return 'btce';
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}
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$this->setErrorMessage("API URL unknown");
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return false;
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}
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/**
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* Extract price information from API data
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**/
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public function getPrice() {
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$aData = $this->getApi($this->config['price']['url'], $this->config['price']['target']);
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$strCurrency = $this->config['currency'];
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// Check the API type for configured URL
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if (!$strApiType = $this->getApiType($this->config['price']['url']))
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return false;
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// Extract price depending on API type
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switch ($strApiType) {
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case 'coinchose':
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foreach ($aData as $aItem) {
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if($strCurrency == $aItem[0])
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return $aItem['price'];
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}
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break;
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case 'btce':
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return $aData['ticker']['last'];
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break;
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}
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// Catchall, we have no data extractor for this API url
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$this->setErrorMessage("Undefined API to getPrice() on URL " . $this->config['price']['url']);
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return false;
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}
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}
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$tools = new Tools();
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$tools->setDebug($debug);
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$tools->setConfig($config);
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