def upload(request):
    """ 
    Save the code from request and return HTML.

    Returned styles info depends on style argument:
     * 1 (default): prepend html code with styles in <style> tag
     * 2: do not put styles info to response

    Returns the dict in JSON format:
     * html: html code
     * url: absolute url of the dump
     * text_url: absolute url of the text version of the dump
     * css_link: URI of CSS styles for highlighting the html
    """

    try:
        style = int(request.POST['style'])
    except (KeyError, ValueError):
        style = API_STYLE_YES
    else:
        if not style in [API_STYLE_YES, API_STYLE_NO]:
            style = API_STYLE_YES

    code = request.POST.get('code', None)
    if not code:
        return {'error': 'Empty code field'}

    lexer = request.POST.get('lexer', '') 
    comment = request.POST.get('comment', '') 

    obj = Code(code=code, lexer=lexer, comment=comment)
    obj.save()

    html = obj.code_rendered
    if style == API_STYLE_YES:
        html = u'<style type="text/css">%s</style>\n\n%s' % (generate_styles(), html)

    return {'html': html,
            'css_link': settings.DUMPZ_PYGMENTS_CSS_LINK,
            'url': obj.get_absolute_url(),
            'text_url': obj.get_absolute_text_url(),
            }