1 files changed, 117 insertions, 0 deletions
diff --git a/app/Core/HttpClient.php b/app/Core/HttpClient.php
new file mode 100644
index 00000000..2f280a1e
--- /dev/null
+++ b/app/Core/HttpClient.php
@@ -0,0 +1,117 @@
+<?php
+
+namespace Core;
+
+/**
+ * HTTP client
+ *
+ * @package  core
+ * @author   Frederic Guillot
+ */
+class HttpClient extends Base
+{
+    /**
+     * HTTP connection timeout in seconds
+     *
+     * @var integer
+     */
+    const HTTP_TIMEOUT = 5;
+
+    /**
+     * Number of maximum redirections for the HTTP client
+     *
+     * @var integer
+     */
+    const HTTP_MAX_REDIRECTS = 2;
+
+    /**
+     * HTTP client user agent
+     *
+     * @var string
+     */
+    const HTTP_USER_AGENT = 'Kanboard';
+
+    /**
+     * Send a POST HTTP request encoded in JSON
+     *
+     * @access public
+     * @param  string  $url
+     * @param  array   $data
+     * @param  array   $headers
+     * @return string
+     */
+    public function postJson($url, array $data, array $headers = array())
+    {
+        return $this->doRequest(
+            $url,
+            json_encode($data),
+            array_merge(array('Content-type: application/json'), $headers)
+        );
+    }
+
+    /**
+     * Send a POST HTTP request encoded in www-form-urlencoded
+     *
+     * @access public
+     * @param  string  $url
+     * @param  array   $data
+     * @param  array   $headers
+     * @return string
+     */
+    public function postForm($url, array $data, array $headers = array())
+    {
+        return $this->doRequest(
+            $url,
+            http_build_query($data),
+            array_merge(array('Content-type: application/x-www-form-urlencoded'), $headers)
+        );
+    }
+
+    /**
+     * Make the HTTP request
+     *
+     * @access private
+     * @param  string  $url
+     * @param  array   $content
+     * @param  array   $headers
+     * @return string
+     */
+    private function doRequest($url, $content, array $headers)
+    {
+        if (empty($url)) {
+            return '';
+        }
+
+        $headers = array_merge(array('User-Agent: '.self::HTTP_USER_AGENT, 'Connection: close'), $headers);
+
+        $context = stream_context_create(array(
+            'http' => array(
+                'method' => 'POST',
+                'protocol_version' => 1.1,
+                'timeout' => self::HTTP_TIMEOUT,
+                'max_redirects' => self::HTTP_MAX_REDIRECTS,
+                'header' => implode("\r\n", $headers),
+                'content' => $content
+            )
+        ));
+
+        $stream = @fopen(trim($url), 'r', false, $context);
+        $response = '';
+
+        if (is_resource($stream)) {
+            $response = stream_get_contents($stream);
+        }
+        else {
+            $this->container['logger']->error('HttpClient: request failed');
+        }
+
+        if (DEBUG) {
+            $this->container['logger']->debug('HttpClient: url='.$url);
+            $this->container['logger']->debug('HttpClient: payload='.$content);
+            $this->container['logger']->debug('HttpClient: metadata='.var_export(@stream_get_meta_data($stream), true));
+            $this->container['logger']->debug('HttpClient: response='.$response);
+        }
+
+        return $response;
+    }
+}