diff --git a/workflow/engine/src/ProcessMaker/Util/IO/HttpStream.php b/workflow/engine/src/ProcessMaker/Util/IO/HttpStream.php
new file mode 100644
index 000000000..98e693630
--- /dev/null
+++ b/workflow/engine/src/ProcessMaker/Util/IO/HttpStream.php
@@ -0,0 +1,333 @@
+<?php
+namespace ProcessMaker\Util\IO;
+
+/**
+ * Class HttpStream
+ * Send a http stream from a file or string
+ *
+ * @package ProcessMaker\Util\IO
+ * @author Erik Amaru Ortiz <erik@colosa.com, aortiz.erik@gmail.com>
+ */
+class HttpStream
+{
+    /**
+     * @var string content stream
+     */
+
+    protected $content = "";
+    protected $sourceName = "";
+    protected $headers = array();
+    protected $charset;
+    protected $statusCode;
+    protected $extension;
+    protected $filename;
+    protected $version;
+    protected $statusText;
+
+    protected static $mimeType = array(
+        'ai' => 'application/postscript', 'bcpio' => 'application/x-bcpio', 'bin' => 'application/octet-stream',
+        'ccad' => 'application/clariscad', 'cdf' => 'application/x-netcdf', 'class' => 'application/octet-stream',
+        'cpio' => 'application/x-cpio', 'cpt' => 'application/mac-compactpro', 'csh' => 'application/x-csh',
+        'csv' => 'application/csv', 'dcr' => 'application/x-director', 'dir' => 'application/x-director',
+        'dms' => 'application/octet-stream', 'doc' => 'application/msword', 'drw' => 'application/drafting',
+        'dvi' => 'application/x-dvi', 'dwg' => 'application/acad', 'dxf' => 'application/dxf',
+        'dxr' => 'application/x-director', 'eot' => 'application/vnd.ms-fontobject', 'eps' => 'application/postscript',
+        'exe' => 'application/octet-stream', 'ez' => 'application/andrew-inset',
+        'flv' => 'video/x-flv', 'gtar' => 'application/x-gtar', 'gz' => 'application/x-gzip',
+        'bz2' => 'application/x-bzip', '7z' => 'application/x-7z-compressed', 'hdf' => 'application/x-hdf',
+        'hqx' => 'application/mac-binhex40', 'ico' => 'image/vnd.microsoft.icon', 'ips' => 'application/x-ipscript',
+        'ipx' => 'application/x-ipix', 'js' => 'application/x-javascript', 'latex' => 'application/x-latex',
+        'lha' => 'application/octet-stream', 'lsp' => 'application/x-lisp', 'lzh' => 'application/octet-stream',
+        'man' => 'application/x-troff-man', 'me' => 'application/x-troff-me', 'mif' => 'application/vnd.mif',
+        'ms' => 'application/x-troff-ms', 'nc' => 'application/x-netcdf', 'oda' => 'application/oda',
+        'otf' => 'font/otf', 'pdf' => 'application/pdf',
+        'pgn' => 'application/x-chess-pgn', 'pot' => 'application/mspowerpoint', 'pps' => 'application/mspowerpoint',
+        'ppt' => 'application/mspowerpoint', 'ppz' => 'application/mspowerpoint', 'pre' => 'application/x-freelance',
+        'prt' => 'application/pro_eng', 'ps' => 'application/postscript', 'roff' => 'application/x-troff',
+        'scm' => 'application/x-lotusscreencam', 'set' => 'application/set', 'sh' => 'application/x-sh',
+        'shar' => 'application/x-shar', 'sit' => 'application/x-stuffit', 'skd' => 'application/x-koan',
+        'skm' => 'application/x-koan', 'skp' => 'application/x-koan', 'skt' => 'application/x-koan',
+        'smi' => 'application/smil', 'smil' => 'application/smil', 'sol' => 'application/solids',
+        'spl' => 'application/x-futuresplash', 'src' => 'application/x-wais-source', 'step' => 'application/STEP',
+        'stl' => 'application/SLA', 'stp' => 'application/STEP', 'sv4cpio' => 'application/x-sv4cpio',
+        'sv4crc' => 'application/x-sv4crc', 'svg' => 'image/svg+xml', 'svgz' => 'image/svg+xml',
+        'swf' => 'application/x-shockwave-flash', 't' => 'application/x-troff',
+        'tar' => 'application/x-tar', 'tcl' => 'application/x-tcl', 'tex' => 'application/x-tex',
+        'texi' => 'application/x-texinfo', 'texinfo' => 'application/x-texinfo', 'tr' => 'application/x-troff',
+        'tsp' => 'application/dsptype', 'ttf' => 'font/ttf',
+        'unv' => 'application/i-deas', 'ustar' => 'application/x-ustar',
+        'vcd' => 'application/x-cdlink', 'vda' => 'application/vda', 'xlc' => 'application/vnd.ms-excel',
+        'xll' => 'application/vnd.ms-excel', 'xlm' => 'application/vnd.ms-excel', 'xls' => 'application/vnd.ms-excel',
+        'xlw' => 'application/vnd.ms-excel', 'zip' => 'application/zip', 'aif' => 'audio/x-aiff', 'aifc' => 'audio/x-aiff',
+        'aiff' => 'audio/x-aiff', 'au' => 'audio/basic', 'kar' => 'audio/midi', 'mid' => 'audio/midi',
+        'midi' => 'audio/midi', 'mp2' => 'audio/mpeg', 'mp3' => 'audio/mpeg', 'mpga' => 'audio/mpeg',
+        'ra' => 'audio/x-realaudio', 'ram' => 'audio/x-pn-realaudio', 'rm' => 'audio/x-pn-realaudio',
+        'rpm' => 'audio/x-pn-realaudio-plugin', 'snd' => 'audio/basic', 'tsi' => 'audio/TSP-audio', 'wav' => 'audio/x-wav',
+        'asc' => 'text/plain', 'c' => 'text/plain', 'cc' => 'text/plain', 'css' => 'text/css', 'etx' => 'text/x-setext',
+        'f' => 'text/plain', 'f90' => 'text/plain', 'h' => 'text/plain', 'hh' => 'text/plain', 'htm' => 'text/html',
+        'html' => 'text/html', 'm' => 'text/plain', 'rtf' => 'text/rtf', 'rtx' => 'text/richtext', 'sgm' => 'text/sgml',
+        'sgml' => 'text/sgml', 'tsv' => 'text/tab-separated-values', 'tpl' => 'text/template', 'txt' => 'text/plain',
+        'xml' => 'text/xml', 'avi' => 'video/x-msvideo', 'fli' => 'video/x-fli', 'mov' => 'video/quicktime',
+        'movie' => 'video/x-sgi-movie', 'mpe' => 'video/mpeg', 'mpeg' => 'video/mpeg', 'mpg' => 'video/mpeg',
+        'qt' => 'video/quicktime', 'viv' => 'video/vnd.vivo', 'vivo' => 'video/vnd.vivo', 'gif' => 'image/gif',
+        'ief' => 'image/ief', 'jpe' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'jpg' => 'image/jpeg',
+        'pbm' => 'image/x-portable-bitmap', 'pgm' => 'image/x-portable-graymap', 'png' => 'image/png',
+        'pnm' => 'image/x-portable-anymap', 'ppm' => 'image/x-portable-pixmap', 'ras' => 'image/cmu-raster',
+        'rgb' => 'image/x-rgb', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'xbm' => 'image/x-xbitmap',
+        'xpm' => 'image/x-xpixmap', 'xwd' => 'image/x-xwindowdump', 'ice' => 'x-conference/x-cooltalk',
+        'iges' => 'model/iges', 'igs' => 'model/iges', 'mesh' => 'model/mesh', 'msh' => 'model/mesh',
+        'silo' => 'model/mesh', 'vrml' => 'model/vrml', 'wrl' => 'model/vrml',
+        'mime' => 'www/mime', 'pdb' => 'chemical/x-pdb', 'xyz' => 'chemical/x-pdb'
+    );
+    protected static $statusTexts = array(
+        100 => 'Continue',
+        101 => 'Switching Protocols',
+        200 => 'OK',
+        201 => 'Created',
+        202 => 'Accepted',
+        203 => 'Non-Authoritative Information',
+        204 => 'No Content',
+        205 => 'Reset Content',
+        206 => 'Partial Content',
+        300 => 'Multiple Choices',
+        301 => 'Moved Permanently',
+        302 => 'Found',
+        303 => 'See Other',
+        304 => 'Not Modified',
+        305 => 'Use Proxy',
+        307 => 'Temporary Redirect',
+        400 => 'Bad Request',
+        401 => 'Unauthorized',
+        402 => 'Payment Required',
+        403 => 'Forbidden',
+        404 => 'Not Found',
+        405 => 'Method Not Allowed',
+        406 => 'Not Acceptable',
+        407 => 'Proxy Authentication Required',
+        408 => 'Request Timeout',
+        409 => 'Conflict',
+        410 => 'Gone',
+        411 => 'Length Required',
+        412 => 'Precondition Failed',
+        413 => 'Request Entity Too Large',
+        414 => 'Request-URI Too Long',
+        415 => 'Unsupported Media Type',
+        416 => 'Requested Range Not Satisfiable',
+        417 => 'Expectation Failed',
+        418 => 'I\'m a teapot',
+        500 => 'Internal Server Error',
+        501 => 'Not Implemented',
+        502 => 'Bad Gateway',
+        503 => 'Service Unavailable',
+        504 => 'Gateway Timeout',
+        505 => 'HTTP Version Not Supported',
+    );
+
+    public function __constructt($content = "", $status = 200, $headers = array())
+    {
+        if (! empty($content)) {
+            $this->loadFromString($content);
+        }
+
+        if (! empty($headers)) {
+            $this->headers = $headers;
+
+            if (! isset($this->headers['Date'])) {
+                $this->setDate(new \DateTime(null, new \DateTimeZone('UTC')));
+            }
+        }
+
+        $this->setStatusCode($status);
+        $this->setProtocolVersion("1.0");
+    }
+
+    /**
+     * @param string $content content string to stream
+     */
+    public function loadFromString($content)
+    {
+        $this->content = $content;
+    }
+
+    /**
+     * @param string $filename file to stream
+     */
+    public function loadFromFile($filename)
+    {
+        $this->filename =$filename;
+        $this->content = file_get_contents($this->filename);
+        $fileInfo = pathinfo($filename, PATHINFO_EXTENSION);
+        $this->setExtension($fileInfo["extension"]);
+        $this->setSourceName(basename($filename));
+    }
+
+    public function setExtension($extension)
+    {
+        $this->extension = $extension;
+    }
+
+    /**
+     * Returns the extension of the file.
+     * \SplFileInfo::getExtension() is not available before PHP 5.3.6
+     *
+     * @return string The extension
+     */
+    public function getExtension()
+    {
+        return $this->extension;
+    }
+
+    /**
+     * Returns the mime type of the file. (improved by erik)
+     *
+     * The mime type is guessed using the functions finfo(), mime_content_type()
+     * and the system binary "file" (in this order), depending on which of those
+     * is available on the current operating system.
+     *
+     * @author Erik Amaru Ortiz <aortiz.erik@gmail.com>
+     * @return string|null The guessed mime type (i.e. "application/pdf")
+     */
+    public function getMimeType()
+    {
+        if (array_key_exists($this->getExtension(), self::$mimeType)) {
+            return self::$mimeType[$this->getExtension()];
+        }
+
+        if (! empty($this->filename)) {
+            if (class_exists('finfo')) {
+                $finfo = new \finfo;
+                $mimeType = $finfo->file($this->filename, FILEINFO_MIME);
+
+                if (preg_match('/([\w\-]+\/[\w\-]+); charset=(\w+)/', $mimeType, $match)) {
+                    return $match[1];
+                }
+            }
+
+            if (function_exists('mime_content_type')) {
+                return mime_content_type($this->filename);
+            }
+        }
+
+        return 'application/octet-stream';
+    }
+
+    public function setSourceName($sourceName)
+    {
+        $this->sourceName = $sourceName;
+    }
+
+    public function setProtocolVersion($version)
+    {
+        $this->version = $version;
+    }
+
+    public function setHeader($header, $value)
+    {
+        $this->headers[$header] = $value;
+    }
+
+    public function setDate(\DateTime $date)
+    {
+        $date->setTimezone(new \DateTimeZone('UTC'));
+        $this->headers['Date'] = $date->format('D, d M Y H:i:s') . ' GMT';
+    }
+
+    /**
+     * Retrieves the response charset.
+     *
+     * @return string Character set
+     */
+    public function getCharset()
+    {
+        return $this->charset;
+    }
+
+    /**
+     * Sets the response charset.
+     *
+     * @param string $charset
+     * @return string Character set
+     */
+    public function setCharset($charset)
+    {
+        $this->charset = $charset;
+    }
+
+    public function setStatusCode($code, $text = null)
+    {
+        $this->statusCode = (int) $code;
+        $this->statusText = false === $text ? '' : (null === $text ? self::$statusTexts[$this->statusCode] : $text);
+    }
+
+    public function prepare()
+    {
+        if (! empty($this->sourceName)) {
+            $this->setHeader('Content-Disposition', 'attachment; filename="'. $this->sourceName . '"' );
+        }
+
+        // Fix Content-Type
+        $charset = $this->charset ?: 'UTF-8';
+
+        if (! isset($this->headers['Content-Type'])) {
+            $this->headers['Content-Type'] = $this->getMimeType();
+        }
+
+        if (
+            0 === strpos($this->headers['Content-Type'], 'text/') &&
+            false === strpos($this->headers['Content-Type'], 'charset')
+        ) {
+            // add the charset
+            $this->headers['Content-Type'] = $this->headers['Content-Type'].'; charset='.$charset;
+        }
+
+        // Fix Content-Length
+        if (isset($this->headers['Transfer-Encoding'])) {
+            unset($this->headers['Content-Length']);
+        }
+
+
+    }
+
+    public function sendHeaders()
+    {
+        // headers have already been sent by the developer
+        if (headers_sent()) {
+            return;
+        }
+
+        $this->prepare();
+
+        // status
+        header(sprintf('HTTP/%s %s %s', $this->version, $this->statusCode, $this->statusText));
+
+        // headers
+
+
+        //print_r($this->headers); die;
+
+        foreach ($this->headers as $name => $value) {
+            if (is_array($value)) {
+                foreach ($value as $v) {
+                    header($name.': '.$v, false);
+                }
+            } else {
+                header($name.': '.$value, false);
+            }
+        }
+    }
+
+    public function sendContent()
+    {
+        echo $this->content;
+    }
+
+    public function send()
+    {
+        $this->sendHeaders();
+        $this->sendContent();
+
+        if (function_exists('fastcgi_finish_request')) {
+            fastcgi_finish_request();
+        }
+    }
+}
\ No newline at end of file