org.jsoup.safety.Whitelist类的使用及代码示例

x33g5p2x  于2022-02-03 转载在 其他  
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本文整理了Java中org.jsoup.safety.Whitelist类的一些代码示例，展示了Whitelist类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Whitelist类的具体详情如下：
包路径：org.jsoup.safety.Whitelist
类名称：Whitelist

Whitelist介绍

[英]Whitelists define what HTML (elements and attributes) to allow through the cleaner. Everything else is removed.

Start with one of the defaults:

  • #none
  • #simpleText
  • #basic
  • #basicWithImages
  • #relaxed

If you need to allow more through (please be careful!), tweak a base whitelist with:

  • #addTags
  • #addAttributes
  • #addEnforcedAttribute
  • #addProtocols

You can remove any setting from an existing whitelist with:

  • #removeTags
  • #removeAttributes
  • #removeEnforcedAttribute
  • #removeProtocols

The cleaner and these whitelists assume that you want to clean a body fragment of HTML (to add user supplied HTML into a templated page), and not to clean a full HTML document. If the latter is the case, either wrap the document HTML around the cleaned body HTML, or create a whitelist that allows html and head elements as appropriate.

If you are going to extend a whitelist, please be very careful. Make sure you understand what attributes may lead to XSS attack vectors. URL attributes are particularly vulnerable and require careful validation. See http://ha.ckers.org/xss.html for some XSS attack examples.
[中]

代码示例

代码示例来源：origin: k9mail/k-9

public static String extractText(String html) {
    return Jsoup.clean(html, Whitelist.none());
  }
}

代码示例来源：origin: k9mail/k-9

HtmlSanitizer() {
  Whitelist whitelist = Whitelist.relaxed()
      .addTags("font", "hr", "ins", "del", "center", "map", "area")
      .addAttributes("font", "color", "face", "size")
      .addAttributes("table", "align", "background", "bgcolor", "border", "cellpadding", "cellspacing",
          "width")
      .addAttributes("tr", "align", "background", "bgcolor", "valign")
      .addAttributes("th",
          "align", "background", "bgcolor", "colspan", "headers", "height", "nowrap", "rowspan", "scope",
          "sorted", "valign", "width")
      .addAttributes("td",
          "align", "background", "bgcolor", "colspan", "headers", "height", "nowrap", "rowspan", "scope",
          "valign", "width")
      .addAttributes("map", "name")
      .addAttributes("area", "shape", "coords", "href", "alt")
      .addProtocols("area", "href", "http", "https")
      .addAttributes("img", "usemap")
      .addAttributes(":all", "class", "style", "id", "dir")
      .addProtocols("img", "src", "http", "https", "cid", "data")
      .addProtocols("a", "href", "tel", "sip", "bitcoin", "ethereum", "rtsp");
  cleaner = new Cleaner(whitelist);
  headCleaner = new HeadCleaner();
}

代码示例来源：origin: org.jsoup/jsoup

/**
 This whitelist allows the same text tags as {@link #basic}, and also allows <code>img</code> tags, with appropriate
 attributes, with <code>src</code> pointing to <code>http</code> or <code>https</code>.
 @return whitelist
 */
public static Whitelist basicWithImages() {
  return basic()
      .addTags("img")
      .addAttributes("img", "align", "alt", "height", "src", "title", "width")
      .addProtocols("img", "src", "http", "https")
      ;
}

代码示例来源：origin: org.jsoup/jsoup

/**
 This whitelist allows only simple text formatting: <code>b, em, i, strong, u</code>. All other HTML (tags and
 attributes) will be removed.
 @return whitelist
 */
public static Whitelist simpleText() {
  return new Whitelist()
      .addTags("b", "em", "i", "strong", "u")
      ;
}

代码示例来源：origin: org.jsoup/jsoup

/**
 <p>
 This whitelist allows a fuller range of text nodes: <code>a, b, blockquote, br, cite, code, dd, dl, dt, em, i, li,
 ol, p, pre, q, small, span, strike, strong, sub, sup, u, ul</code>, and appropriate attributes.
 </p>
 <p>
 Links (<code>a</code> elements) can point to <code>http, https, ftp, mailto</code>, and have an enforced
 <code>rel=nofollow</code> attribute.
 </p>
 <p>
 Does not allow images.
 </p>
 @return whitelist
 */
public static Whitelist basic() {
  return new Whitelist()
      .addTags(
          "a", "b", "blockquote", "br", "cite", "code", "dd", "dl", "dt", "em",
          "i", "li", "ol", "p", "pre", "q", "small", "span", "strike", "strong", "sub",
          "sup", "u", "ul")
      .addAttributes("a", "href")
      .addAttributes("blockquote", "cite")
      .addAttributes("q", "cite")
      .addProtocols("a", "href", "ftp", "http", "https", "mailto")
      .addProtocols("blockquote", "cite", "http", "https")
      .addProtocols("cite", "cite", "http", "https")
      .addEnforcedAttribute("a", "rel", "nofollow")
      ;
}

代码示例来源：origin: br.com.anteros/Anteros-Bean-Validation

public void initialize(SafeHtml safeHtmlAnnotation) {
  switch ( safeHtmlAnnotation.whitelistType() ) {
    case BASIC:
      whitelist = Whitelist.basic();
      break;
    case BASIC_WITH_IMAGES:
      whitelist = Whitelist.basicWithImages();
      break;
    case NONE:
      whitelist = Whitelist.none();
      break;
    case RELAXED:
      whitelist = Whitelist.relaxed();
      break;
    case SIMPLE_TEXT:
      whitelist = Whitelist.simpleText();
      break;
  }
  whitelist.addTags( safeHtmlAnnotation.additionalTags() );
  for ( SafeHtml.Tag tag : safeHtmlAnnotation.additionalTagsWithAttributes() ) {
    whitelist.addAttributes( tag.name(), tag.attributes() );
  }
}

代码示例来源：origin: zhangyd-c/OneBlog

/**
 * 自定义的白名单
 *
 * @return
 */
private static Whitelist custome() {
  return Whitelist.none().addTags("p", "strong", "pre", "code", "span", "blockquote", "br").addAttributes("span", "class");
}

代码示例来源：origin: tomoya92/pybbs

content = Jsoup.clean(content, Whitelist.relaxed().addTags("code", "pre").addAttributes("code", "class"));
Document parse = Jsoup.parse(content);
Elements tableElements = parse.select("table");

代码示例来源：origin: com.eduworks/ew.levr.base

wl = Whitelist.none();
else
  wl = Whitelist.basic();
    wl.addTags(allowTags.getString(i));
  for (int i = 0; i < allowAttributes.length(); i++) {
    JSONObject attribute = allowAttributes.getJSONObject(i);
    wl.addAttributes(attribute.getString("element"), attribute.getString("attribute"));

代码示例来源：origin: org.apache.myfaces.tobago/tobago-core

@Override
public void setProperties(final Properties configuration) {
 checkLocked();
 unmodifiable = true;
 for (final String key : configuration.stringPropertyNames()) {
  if ("whitelist".equals(key)) {
   whitelistName = configuration.getProperty(key);
   if ("basic".equals(whitelistName)) {
    whitelist = Whitelist.basic();
   } else if ("basicWithImages".equals(whitelistName)) {
    whitelist = Whitelist.basicWithImages();
   } else if ("none".equals(whitelistName)) {
    whitelist = Whitelist.none();
   } else if ("relaxed".equals(whitelistName)) {
    whitelist = Whitelist.relaxed();
   } else if ("simpleText".equals(whitelistName)) {
    whitelist = Whitelist.simpleText();
   } else {
    throw new TobagoConfigurationException(
      "Unknown configuration value for 'whitelist' in tobago-config.xml found! value='" + whitelistName + "'");
   }
  } else {
   throw new TobagoConfigurationException(
     "Unknown configuration key in tobago-config.xml found! key='" + key + "'");
  }
 }
 if (LOG.isInfoEnabled()) {
  LOG.warn("Using whitelist '" + whitelistName + "' for sanitizing!");
 }
}

代码示例来源：origin: FINRAOS/herd

Whitelist whitelist = new Whitelist();
  whitelist.addTags(whitelistTag).addAttributes(whitelistTag, "class");

代码示例来源：origin: viritin/viritin

public Whitelist getWhitelist() {
  if (whitelist == null) {
    return Whitelist.relaxed();
  }
  return whitelist;
}

代码示例来源：origin: stackoverflow.com

String cleanXmlAndRemoveUnwantedTags(String textToEscape) {
  Whitelist whitelist = Whitelist.none();
  whitelist.addTags(allowedTags);

  OutputSettings outputSettings = new OutputSettings()
          .syntax(OutputSettings.Syntax.xml)
          .charset(StandardCharsets.UTF_8)
          .prettyPrint(false);

  String safe = Jsoup.clean(textToEscape, "", whitelist, outputSettings);
  return safe;
}

代码示例来源：origin: IQSS/dataverse

/**
 * Wrapper around Jsoup clean method with the basic White list
 *   http://jsoup.org/cookbook/cleaning-html/whitelist-sanitizer
 * @param unsafe
 * @return 
 */
public static String sanitizeBasicHTML(String unsafe){
  
  if (unsafe == null){
    return null;
  }
  // basic includes: a, b, blockquote, br, cite, code, dd, dl, dt, em, i, li, ol, p, pre, q, small, span, strike, strong, sub, sup, u, ul
  //Whitelist wl = Whitelist.basic().addTags("img", "h1", "h2", "h3", "kbd", "hr", "s", "del");  
  Whitelist wl = Whitelist.basicWithImages().addTags( "h1", "h2", "h3", "kbd", "hr", "s", "del","map","area").addAttributes("img", "usemap")
      .addAttributes("map", "name").addAttributes("area", "shape","coords","href","title","alt")
      .addEnforcedAttribute("a", "target", "_blank");
  return Jsoup.clean(unsafe, wl);
  
}

代码示例来源：origin: jungilhan/awesome-blogs-android

Whitelist whitelist = Whitelist.basicWithImages()
               .addTags("div",
                   "h1", "h2", "h3", "h4", "h5", "h6",
                   "table", "tbody", "td", "tfoot", "th", "thead", "tr",
                   "span", "font",
                   "del", "strike", "s")
               .addAttributes("th", "colspan", "align", "style")
               .addAttributes("td", "colspan", "align", "style")
               .addAttributes(":all", "title", "style");
if(options.preserveRelativeLinks) {
  whitelist.preserveRelativeLinks(true);
  whitelist.addTags("abbr", "acronym");
    whitelist.addAttributes("h"+i, "id");
  whitelist.addTags(el.getTagName());
  if(!el.getAttributes().isEmpty()) {
    whitelist.addAttributes(el.getTagName(), el.getAttributes().toArray(new String[el.getAttributes().size()]));

代码示例来源：origin: tomoya92/pybbs

public Topic insertTopic(String title, String content, String tags, User user, HttpSession session) {
 Topic topic = new Topic();
 topic.setTitle(Jsoup.clean(title, Whitelist.simpleText()));
 topic.setContent(content);
 topic.setInTime(new Date());
 topic.setUserId(user.getId());
 topicMapper.insert(topic);
 // 增加用户积分
 user.setScore(user.getScore() + Integer.parseInt(systemConfigService.selectAllConfig().get("create_topic_score").toString()));
 userService.update(user);
 if (session != null) session.setAttribute("_user", user);
 // 保存标签
 List<Tag> tagList = tagService.insertTag(Jsoup.clean(tags, Whitelist.none()));
 // 处理标签与话题的关联
 topicTagService.insertTopicTag(topic.getId(), tagList);
 // 索引话题
 indexTopic(String.valueOf(topic.getId()), topic.getTitle(), topic.getContent());
 return topic;
}

代码示例来源：origin: lucene4ir/lucene4ir

public TRECAquaintDocumentIndexer(String indexPath, String tokenFilterFile, boolean positional){
  super(indexPath, tokenFilterFile, positional);
  try {
    whiteList = Whitelist.relaxed();
    whiteList.addTags("docno");
    whiteList.addTags("doc");
    whiteList.addTags("headline");
    whiteList.addTags("text");
    whiteList.addTags("date_time");
    whiteList.addTags("slug");
  } catch (Exception e){
    System.out.println(" caught a " + e.getClass() +
        "\n with message: " + e.getMessage());
  }
  doc = new Document();
  initFields();
  initAQUAINTDoc();
}

代码示例来源：origin: mkalus/segrada

@Override
  public String toPlain(String markupText) {
    // sane default
    if (markupText == null || markupText.equals("")) return "";

    // first clean to have valid html
    String cleaned = Jsoup.clean(markupText, Whitelist.basic());
    // then strip all html out
    cleaned = Jsoup.clean(cleaned, Whitelist.none());

    // unescape all entities
    cleaned = Parser.unescapeEntities(cleaned, false);

    // clean further
    return super.toPlain(cleaned);
  }
}

代码示例来源：origin: ManyDesigns/Portofino

/**
 * Returns the JSoup whitelist used to clean user-provided HTML in rich-text fields.
 * @return the default implementation returns the "basic" whitelist ({@link Whitelist#basic()}).
 */
protected Whitelist getWhitelist() {
  return Whitelist.basic();
}

代码示例来源：origin: info.magnolia/magnolia-module-rssaggregator

/**
 * Format and sanitize description input.
 *
 * @param origDescription original description as delivered by feed fetcher.
 * @param abbreviation gives the amount of characters used for abbreviation.
 * @return sanitized HTML output string.
 */
public static String formatDescription(String origDescription, Integer abbreviation) {
  // replace Java linebreaks with HTML
  //origDescription = StringUtils.replace(origDescription, "\n", "<br/>");
  // check if abbreviation is wanted
  if (abbreviation != null && abbreviation > 0) {
    origDescription = StringUtils.abbreviate(origDescription, abbreviation);
  }
  // Sanitize HTML input
  Whitelist whitelist = Whitelist.basicWithImages();
  whitelist.addTags("h1", "h2", "h3", "h4", "h5", "h6", "div");
  // table tags
  whitelist.addTags("table", "tbody", "td", "tfoot", "th", "thead", "tr");
  return Jsoup.clean(origDescription, whitelist);
}

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