def replace_static_url(original, prefix, quote, rest):
        """
        Replace a single matched url.
        """
        # Don't mess with things that end in '?raw'
        if rest.endswith('?raw'):
            return original

        # In debug mode, if we can find the url as is,
        if settings.DEBUG and finders.find(rest, True):
            return original
        # if we're running with a MongoBacked store course_namespace is not None, then use studio style urls
        elif (not static_asset_path) \
                and course_id \
                and modulestore().get_modulestore_type(course_id) != ModuleStoreEnum.Type.xml:
            # first look in the static file pipeline and see if we are trying to reference
            # a piece of static content which is in the edx-platform repo (e.g. JS associated with an xmodule)

            exists_in_staticfiles_storage = False
            try:
                exists_in_staticfiles_storage = staticfiles_storage.exists(rest)
            except Exception as err:
                log.warning("staticfiles_storage couldn't find path {0}: {1}".format(
                    rest, str(err)))

            if exists_in_staticfiles_storage:
                url = staticfiles_storage.url(rest)
            else:
                # if not, then assume it's courseware specific content and then look in the
                # Mongo-backed database
                url = StaticContent.convert_legacy_static_url_with_course_id(rest, course_id)

                if AssetLocator.CANONICAL_NAMESPACE in url:
                    url = url.replace('[email protected]', 'block/', 1)

        # Otherwise, look the file up in staticfiles_storage, and append the data directory if needed
        else:
            course_path = "/".join((static_asset_path or data_directory, rest))

            try:
                if staticfiles_storage.exists(rest):
                    url = staticfiles_storage.url(rest)
                else:
                    url = staticfiles_storage.url(course_path)
            # And if that fails, assume that it's course content, and add manually data directory
            except Exception as err:
                log.warning("staticfiles_storage couldn't find path {0}: {1}".format(
                    rest, str(err)))
                url = "".join([prefix, course_path])

        return "".join([quote, url, quote])

    def replace_static_url(match):
        original = match.group(0)
        prefix = match.group("prefix")
        quote = match.group("quote")
        rest = match.group("rest")

        # Don't mess with things that end in '?raw'
        if rest.endswith("?raw"):
            return original

        # In debug mode, if we can find the url as is,
        if settings.DEBUG and finders.find(rest, True):
            return original
        # if we're running with a MongoBacked store course_namespace is not None, then use studio style urls
        elif (
            (not static_asset_path)
            and course_id
            and modulestore().get_modulestore_type(course_id) != XML_MODULESTORE_TYPE
        ):
            # first look in the static file pipeline and see if we are trying to reference
            # a piece of static content which is in the edx-platform repo (e.g. JS associated with an xmodule)

            exists_in_staticfiles_storage = False
            try:
                exists_in_staticfiles_storage = staticfiles_storage.exists(rest)
            except Exception as err:
                log.warning("staticfiles_storage couldn't find path {0}: {1}".format(rest, str(err)))

            if exists_in_staticfiles_storage:
                url = staticfiles_storage.url(rest)
            else:
                # if not, then assume it's courseware specific content and then look in the
                # Mongo-backed database
                url = StaticContent.convert_legacy_static_url_with_course_id(rest, course_id)
        # Otherwise, look the file up in staticfiles_storage, and append the data directory if needed
        else:
            course_path = "/".join((static_asset_path or data_directory, rest))

            try:
                if staticfiles_storage.exists(rest):
                    url = staticfiles_storage.url(rest)
                else:
                    url = staticfiles_storage.url(course_path)
            # And if that fails, assume that it's course content, and add manually data directory
            except Exception as err:
                log.warning("staticfiles_storage couldn't find path {0}: {1}".format(rest, str(err)))
                url = "".join([prefix, course_path])

        return "".join([quote, url, quote])

 def render_js(self, package, path):
     template_name = package.template_name or "pipeline/js.html"
     context = package.extra_context
     context.update({
         'url': staticfiles_storage.url(path)
     })
     return render_to_string(template_name, context)

 def render_js(self, package, path):
     template_name = package.template_name or "pipeline/js.html"
     context = package.extra_context
     context.update({
         'type': guess_type(path, 'text/javascript'),
         'url': staticfiles_storage.url(path)
     })
     return render_to_string(template_name, context)

    def replace_static_url(match):
        original = match.group(0)
        prefix = match.group('prefix')
        quote = match.group('quote')
        rest = match.group('rest')

        # Don't mess with things that end in '?raw'
        if rest.endswith('?raw'):
            return original

        # In debug mode, if we can find the url as is,
        if settings.DEBUG and finders.find(rest, True):
            return original
        # if we're running with a MongoBacked store course_namespace is not
        # None, then use studio style urls
        elif course_namespace is not None and not isinstance(modulestore(), XMLModuleStore):
            # first look in the static file pipeline and see if we are trying to reference
            # a piece of static content which is in the mitx repo (e.g. JS
            # associated with an xmodule)
            if staticfiles_storage.exists(rest):
                url = staticfiles_storage.url(rest)
            else:
                # if not, then assume it's courseware specific content and then look in the
                # Mongo-backed database
                url = StaticContent.convert_legacy_static_url(
                    rest, course_namespace)
        # Otherwise, look the file up in staticfiles_storage, and append the
        # data directory if needed
        else:
            course_path = "/".join((data_directory, rest))

            try:
                if staticfiles_storage.exists(rest):
                    url = staticfiles_storage.url(rest)
                else:
                    url = staticfiles_storage.url(course_path)
            # And if that fails, assume that it's course content, and add
            # manually data directory
            except Exception as err:
                log.warning("staticfiles_storage couldn't find path {0}: {1}".format(
                    rest, str(err)))
                url = "".join([prefix, course_path])

        return "".join([quote, url, quote])

    def get(self, request, course_id, usage_id):
        """Display the view for face photo submission.

        Args:
            request(HttpRequest): HttpRequest object
            course_id(str): A string of course id
            usage_id(str): Location of Reverification XBlock in courseware

        Returns:
            HttpResponse
        """
        # Check that in-course re-verification is enabled or not
        incourse_reverify_enabled = InCourseReverificationConfiguration.current().enabled

        if not incourse_reverify_enabled:
            log.error(
                u"In-course reverification is not enabled.  "
                u"You can enable it in Django admin by setting "
                u"InCourseReverificationConfiguration to enabled."
            )
            raise Http404

        user = request.user
        course_key = CourseKey.from_string(course_id)
        course = modulestore().get_course(course_key)
        if course is None:
            log.error(u"Could not find course '%s' for in-course reverification.", course_key)
            raise Http404

        checkpoint = VerificationCheckpoint.get_verification_checkpoint(course_key, usage_id)
        if checkpoint is None:
            log.error(
                u"No verification checkpoint exists for the "
                u"course '%s' and checkpoint location '%s'.",
                course_key, usage_id
            )
            raise Http404

        initial_verification = SoftwareSecurePhotoVerification.get_initial_verification(user)
        if not initial_verification:
            return self._redirect_no_initial_verification(user, course_key)

        # emit the reverification event
        self._track_reverification_events(
            EVENT_NAME_USER_ENTERED_INCOURSE_REVERIFY_VIEW, user.id, course_id, checkpoint.checkpoint_name
        )

        context = {
            'course_key': unicode(course_key),
            'course_name': course.display_name_with_default,
            'checkpoint_name': checkpoint.checkpoint_name,
            'platform_name': settings.PLATFORM_NAME,
            'usage_id': usage_id,
            'capture_sound': staticfiles_storage.url("audio/camera_capture.wav"),
        }
        return render_to_response("verify_student/incourse_reverify.html", context)

def get_xmodule_urls():
    """
    Returns a list of the URLs to hit to grab all the XModule JS
    """
    if settings.DEBUG:
        paths = [path.replace(".coffee", ".js") for path in
                 settings.PIPELINE_JS['module-js']['source_filenames']]
    else:
        paths = [settings.PIPELINE_JS['module-js']['output_filename']]
    return [staticfiles_storage.url(path) for path in paths]

def static_url(path):
    """
    Take a static file path and return the correct URL.

    Simple wrapper around staticfiles.storage.staticfiles_storage.
    """
    try:
        return staticfiles_storage.url(path)
    except ValueError:
        # URL couldn't be found.  Let's just return the path.
        return path

def try_staticfiles_lookup(path):
    """
    Try to lookup a path in staticfiles_storage.  If it fails, return
    a dead link instead of raising an exception.
    """
    try:
        url = staticfiles_storage.url(path)
    except Exception as err:
        log.warning("staticfiles_storage couldn't find path {0}: {1}".format(path, str(err)))
        # Just return the original path; don't kill everything.
        url = path
    return url

def _absolute_url_staticfile(is_secure, name):
    """Construct an absolute URL back to a static resource on the site.

    Arguments:
        is_secure (bool): If true, use HTTPS as the protocol.
        name (unicode): The name of the static resource to retrieve.

    Returns:
        unicode

    """
    url_path = staticfiles_storage.url(name)
    return _absolute_url(is_secure, url_path)

def get_logo_url():
    """
    Return the url for the branded logo image to be used
    """

    # if the MicrositeConfiguration has a value for the logo_image_url
    # let's use that
    image_url = microsite.get_value('logo_image_url')
    if image_url:
        return '{static_url}{image_url}'.format(
            static_url=settings.STATIC_URL,
            image_url=image_url
        )

    # otherwise, use the legacy means to configure this
    university = microsite.get_value('university')

    if university is None and settings.FEATURES.get('IS_EDX_DOMAIN', False):
        return staticfiles_storage.url('images/edx-theme/edx-logo-77x36.png')
    elif university:
        return staticfiles_storage.url('images/{uni}-on-edx-logo.png'.format(uni=university))
    else:
        return staticfiles_storage.url('images/logo.png')

    def render(self, path):
        """Render the HTML tag."""
        if not self.package.template_name:
            template_name = {"js": "pipeline/js.jinja", "css": "pipeline/css.jinja"}[self.package_type]
        else:
            template_name = self.package.template_name

        mimetype = {"js": "text/javascript", "css": "text/css"}[self.package_type]

        context = self.package.extra_context
        context.update({"type": guess_type(path, mimetype), "url": staticfiles_storage.url(path)})

        env = Environment(loader=self.loader)
        tpl = env.get_template(template_name)
        return tpl.render(**context)

def render_url(context, file):
    __M_caller = context.caller_stack._push_frame()
    try:
        __M_writer = context.writer()
        # SOURCE LINE 6

        try:
            url = staticfiles_storage.url(file)
        except:
            url = file

        # SOURCE LINE 11
        __M_writer(filters.decode.utf8(url))
        return ""
    finally:
        context.caller_stack._pop_frame()

    def get(self, request):
        """
        Render the reverification flow.

        Most of the work is done client-side by composing the same
        Backbone views used in the initial verification flow.
        """
        status, _ = SoftwareSecurePhotoVerification.user_status(request.user)
        if status in ["must_reverify", "expired"]:
            context = {
                "user_full_name": request.user.profile.name,
                "platform_name": microsite.get_value("platform_name", settings.PLATFORM_NAME),
                "capture_sound": staticfiles_storage.url("audio/camera_capture.wav"),
            }
            return render_to_response("verify_student/reverify.html", context)
        else:
            context = {"status": status}
            return render_to_response("verify_student/reverify_not_allowed.html", context)

def _absolute_url_staticfile(is_secure, name):
    """Construct an absolute URL to a static resource on the site.

    Arguments:
        is_secure (bool): If true, use HTTPS as the protocol.
        name (unicode): The name of the static resource to retrieve.

    Returns:
        unicode

    """
    url_path = staticfiles_storage.url(name)

    # In production, the static files URL will be an absolute
    # URL pointing to a CDN.  If this happens, we can just
    # return the URL.
    if urlparse.urlparse(url_path).netloc:
        return url_path

    # For local development, the returned URL will be relative,
    # so we need to make it absolute.
    return _absolute_url(is_secure, url_path)

def render_css(context,group):
    __M_caller = context.caller_stack._push_frame()
    try:
        settings = context.get('settings', UNDEFINED)
        __M_writer = context.writer()
        # SOURCE LINE 13
        __M_writer(u'\n')
        # SOURCE LINE 14
        if settings.MITX_FEATURES['USE_DJANGO_PIPELINE']:
            # SOURCE LINE 15
            __M_writer(u'    ')
            __M_writer(filters.decode.utf8(compressed_css(group)))
            __M_writer(u'\n')
            # SOURCE LINE 16
        else:
            # SOURCE LINE 17
            for filename in settings.PIPELINE_CSS[group]['source_filenames']:
                # SOURCE LINE 18
                __M_writer(u'      <link rel="stylesheet" href="')
                __M_writer(filters.decode.utf8(staticfiles_storage.url(filename.replace('.scss', '.css'))))
                __M_writer(u'" type="text/css" media="all" / >\n')
        return ''
    finally:
        context.caller_stack._pop_frame()

def render_js(context,group):
    __M_caller = context.caller_stack._push_frame()
    try:
        settings = context.get('settings', UNDEFINED)
        __M_writer = context.writer()
        # SOURCE LINE 22
        __M_writer(u'\n')
        # SOURCE LINE 23
        if settings.MITX_FEATURES['USE_DJANGO_PIPELINE']:
            # SOURCE LINE 24
            __M_writer(u'    ')
            __M_writer(filters.decode.utf8(compressed_js(group)))
            __M_writer(u'\n')
            # SOURCE LINE 25
        else:
            # SOURCE LINE 26
            for filename in settings.PIPELINE_JS[group]['source_filenames']:
                # SOURCE LINE 27
                __M_writer(u'      <script type="text/javascript" src="')
                __M_writer(filters.decode.utf8(staticfiles_storage.url(filename.replace('.coffee', '.js'))))
                __M_writer(u'"></script>\n')
        return ''
    finally:
        context.caller_stack._pop_frame()

    def render(self, path):
        """Render the HTML tag."""
        if not self.package.template_name:
            template_name = {
                'js': 'pipeline/js.jinja',
                'css': 'pipeline/css.jinja',
            }[self.package_type]
        else:
            template_name = self.package.template_name

        mimetype = {
            'js': 'text/javascript',
            'css': 'text/css',
        }[self.package_type]

        context = self.package.extra_context
        context.update({
            'type': guess_type(path, mimetype),
            'url': staticfiles_storage.url(path)
        })

        env = Environment(loader=self.loader)
        tpl = env.get_template(template_name)
        return tpl.render(**context)

def static(path):
    """
    A template tag that returns the URL to a file
    using staticfiles' storage backend
    """
    return staticfiles_storage.url(path)

def _footer_static_url(request, name):
    """Construct an absolute URL to a static asset. """
    return request.build_absolute_uri(staticfiles_storage.url(name))