Examples with PagePermission org.apache.wiki.auth.permissions.PagePermission used on opensource projects

Example 6 with PagePermission

use of org.apache.wiki.auth.permissions.PagePermission in project jspwiki by apache.

the class RSSGenerator method generateFullWikiRSS.

/**
 *  Generates an RSS feed for the entire wiki.  Each item should be an instance of the RSSItem class.
 *
 *  @param wikiContext A WikiContext
 *  @param feed A Feed to generate the feed to.
 *  @return feed.getString().
 */
protected String generateFullWikiRSS(WikiContext wikiContext, Feed feed) {
    feed.setChannelTitle(m_engine.getApplicationName());
    feed.setFeedURL(m_engine.getBaseURL());
    feed.setChannelLanguage(m_channelLanguage);
    feed.setChannelDescription(m_channelDescription);
    Collection changed = m_engine.getRecentChanges();
    WikiSession session = WikiSession.guestSession(m_engine);
    int items = 0;
    for (Iterator i = changed.iterator(); i.hasNext() && items < 15; items++) {
        WikiPage page = (WikiPage) i.next();
        if (!m_engine.getAuthorizationManager().checkPermission(session, new PagePermission(page, PagePermission.VIEW_ACTION))) {
            // No permission, skip to the next one.
            continue;
        }
        Entry e = new Entry();
        e.setPage(page);
        String url;
        if (page instanceof Attachment) {
            url = m_engine.getURL(WikiContext.ATTACH, page.getName(), null, true);
        } else {
            url = m_engine.getURL(WikiContext.VIEW, page.getName(), null, true);
        }
        e.setURL(url);
        e.setTitle(page.getName());
        e.setContent(getEntryDescription(page));
        e.setAuthor(getAuthor(page));
        feed.addEntry(e);
    }
    return feed.getString();
}

Example 7 with PagePermission

use of org.apache.wiki.auth.permissions.PagePermission in project jspwiki by apache.

the class LuceneSearchProvider method findPages.

/**
 *  Searches pages using a particular combination of flags.
 *
 *  @param query The query to perform in Lucene query language
 *  @param flags A set of flags
 *  @return A Collection of SearchResult instances
 *  @throws ProviderException if there is a problem with the backend
 */
public Collection findPages(String query, int flags, WikiContext wikiContext) throws ProviderException {
    IndexSearcher searcher = null;
    ArrayList<SearchResult> list = null;
    Highlighter highlighter = null;
    try {
        String[] queryfields = { LUCENE_PAGE_CONTENTS, LUCENE_PAGE_NAME, LUCENE_AUTHOR, LUCENE_ATTACHMENTS };
        QueryParser qp = new MultiFieldQueryParser(Version.LUCENE_47, queryfields, getLuceneAnalyzer());
        // QueryParser qp = new QueryParser( LUCENE_PAGE_CONTENTS, getLuceneAnalyzer() );
        Query luceneQuery = qp.parse(query);
        if ((flags & FLAG_CONTEXTS) != 0) {
            highlighter = new Highlighter(new SimpleHTMLFormatter("<span class=\"searchmatch\">", "</span>"), new SimpleHTMLEncoder(), new QueryScorer(luceneQuery));
        }
        try {
            File dir = new File(m_luceneDirectory);
            Directory luceneDir = new SimpleFSDirectory(dir, null);
            IndexReader reader = DirectoryReader.open(luceneDir);
            searcher = new IndexSearcher(reader);
        } catch (Exception ex) {
            log.info("Lucene not yet ready; indexing not started", ex);
            return null;
        }
        ScoreDoc[] hits = searcher.search(luceneQuery, MAX_SEARCH_HITS).scoreDocs;
        AuthorizationManager mgr = m_engine.getAuthorizationManager();
        list = new ArrayList<SearchResult>(hits.length);
        for (int curr = 0; curr < hits.length; curr++) {
            int docID = hits[curr].doc;
            Document doc = searcher.doc(docID);
            String pageName = doc.get(LUCENE_ID);
            WikiPage page = m_engine.getPage(pageName, WikiPageProvider.LATEST_VERSION);
            if (page != null) {
                if (page instanceof Attachment) {
                // Currently attachments don't look nice on the search-results page
                // When the search-results are cleaned up this can be enabled again.
                }
                PagePermission pp = new PagePermission(page, PagePermission.VIEW_ACTION);
                if (mgr.checkPermission(wikiContext.getWikiSession(), pp)) {
                    int score = (int) (hits[curr].score * 100);
                    // Get highlighted search contexts
                    String text = doc.get(LUCENE_PAGE_CONTENTS);
                    String[] fragments = new String[0];
                    if (text != null && highlighter != null) {
                        TokenStream tokenStream = getLuceneAnalyzer().tokenStream(LUCENE_PAGE_CONTENTS, new StringReader(text));
                        fragments = highlighter.getBestFragments(tokenStream, text, MAX_FRAGMENTS);
                    }
                    SearchResult result = new SearchResultImpl(page, score, fragments);
                    list.add(result);
                }
            } else {
                log.error("Lucene found a result page '" + pageName + "' that could not be loaded, removing from Lucene cache");
                pageRemoved(new WikiPage(m_engine, pageName));
            }
        }
    } catch (IOException e) {
        log.error("Failed during lucene search", e);
    } catch (ParseException e) {
        log.info("Broken query; cannot parse query ", e);
        throw new ProviderException("You have entered a query Lucene cannot process: " + e.getMessage());
    } catch (InvalidTokenOffsetsException e) {
        log.error("Tokens are incompatible with provided text ", e);
    } finally {
        if (searcher != null) {
            try {
                searcher.getIndexReader().close();
            } catch (IOException e) {
                log.error(e);
            }
        }
    }
    return list;
}