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Renders gadgets, provides the gadget metadata service, and serves all javascript required by the OpenSocial specification.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.shindig.gadgets.render;

import com.google.common.collect.ImmutableSet;

import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Singleton;

import java.util.Set;

/**
 * Guice bindings for the render package.
 */
public class RenderModule extends AbstractModule {
  @Override
  protected void configure() {
    // NOTE: Sanitization only works when using the "full" Neko HTML parser. It is not recommended
    // that you attempt to use sanitization without it.
  }

  @Provides
  @Singleton
  @SanitizingGadgetRewriter.AllowedTags
  protected Set provideAllowedTags() {
    return ImmutableSet.of("a", "abbr", "acronym", "area", "b", "bdo", "big", "blockquote",
        "body", "br", "caption", "center", "cite", "code", "col", "colgroup", "dd", "del",
        "dfn", "div", "dl", "dt", "em", "font", "h1", "h2", "h3", "h4", "h5", "h6", "head",
        "hr", "html", "i", "img", "ins", "legend", "li", "link", "map", "ol", "p", "pre",
        "q", "s", "samp", "small", "span", "strike", "strong", "style", "sub", "sup", "table",
        "tbody", "td", "tfoot", "th", "thead", "tr", "tt", "u", "ul");
  }

  @Provides
  @Singleton
  @SanitizingGadgetRewriter.AllowedAttributes
  protected Set provideAllowedAttributes() {
    return ImmutableSet.of("abbr", "align", "alt", "axis", "bgcolor", "border",
        "cellpadding", "cellspacing", "char", "charoff", "cite", "class", "clear", "color",
        "cols", "colspan", "compact", "coords", "datetime", "dir", "face", "headers", "height",
        "href", "hreflang", "hspace", "id", "ismap", "lang", "longdesc", "name", "nohref",
        "noshade", "nowrap", "rel", "rev", "rowspan", "rules", "scope", "shape", "size", "span",
        "src", "start", "style", "summary", "title", "type", "usemap", "valign", "value",
        "vspace", "width");
  }
}