*cough*

apps/syndie/java/src/net/i2p/syndie/sml/ThreadedHTMLRenderer.java

+package net.i2p.syndie.sml;
+
+import java.io.*;
+import java.text.*;
+import java.util.*;
+import net.i2p.I2PAppContext;
+import net.i2p.client.naming.PetName;
+import net.i2p.data.*;
+import net.i2p.syndie.*;
+import net.i2p.syndie.data.*;
+import net.i2p.syndie.web.*;
+import net.i2p.util.Log;
+
+/**
+ *
+ */
+public class ThreadedHTMLRenderer extends HTMLRenderer {
+    private Log _log;
+    private String _baseURI;
+    
+    public ThreadedHTMLRenderer(I2PAppContext ctx) {
+        super(ctx);
+        _log = ctx.logManager().getLog(ThreadedHTMLRenderer.class);
+    }
+    
+    /** what, if any, post should be rendered */
+    public static final String PARAM_VIEW_POST = "post";
+    /** what, if any, thread should be rendered in its entirety */
+    public static final String PARAM_VIEW_THREAD = "thread";
+    /** what post should be visible in the nav tree */
+    public static final String PARAM_VISIBLE = "visible";
+    public static final String PARAM_ADD_TO_GROUP_LOCATION = "addLocation";
+    public static final String PARAM_ADD_TO_GROUP_NAME = "addGroup";
+    /** index into the nav tree to start displaying */
+    public static final String PARAM_OFFSET = "offset";
+    public static final String PARAM_TAGS = "tags";
+    
+    public static String getFilterByTagLink(String uri, ThreadNode node, User user, String tag) { 
+        StringBuffer buf = new StringBuffer(64);
+        buf.append(uri).append('?');
+        if (node != null) {
+            buf.append(PARAM_VIEW_POST).append('=');
+            buf.append(node.getEntry().getKeyHash().toBase64()).append('/');
+            buf.append(node.getEntry().getEntryId()).append('&');
+        }
+        
+        if ( (tag != null) && (tag.trim().length() > 0) )
+            buf.append(PARAM_TAGS).append('=').append(tag);
+        return buf.toString();
+    }
+    
+    public static String getNavLink(String uri, String viewPost, String viewThread, String tags, int offset) {
+        StringBuffer buf = new StringBuffer(64);
+        buf.append(uri);
+        buf.append('?');
+        if (!empty(viewPost))
+            buf.append(PARAM_VIEW_POST).append('=').append(viewPost).append('&');
+        else if (!empty(viewThread))
+            buf.append(PARAM_VIEW_THREAD).append('=').append(viewThread).append('&');
+        
+        if (!empty(tags))
+            buf.append(PARAM_TAGS).append('=').append(tags).append('&');
+        
+        buf.append(PARAM_OFFSET).append('=').append(offset).append('&');
+        
+        return buf.toString();
+    }
+    
+    public static String getViewPostLink(String uri, ThreadNode node, User user, boolean isPermalink, 
+                                         String offset, String tags) {
+        StringBuffer buf = new StringBuffer(64);
+        buf.append(uri);
+        if (node.getChildCount() > 0) {
+            buf.append('?').append(PARAM_VISIBLE).append('=');
+            ThreadNode child = node.getChild(0);
+            buf.append(child.getEntry().getKeyHash().toBase64()).append('/');
+            buf.append(child.getEntry().getEntryId()).append('&');
+        } else {
+            buf.append('?').append(PARAM_VISIBLE).append('=');
+            buf.append(node.getEntry().getKeyHash().toBase64()).append('/');
+            buf.append(node.getEntry().getEntryId()).append('&');
+        }
+        buf.append(PARAM_VIEW_POST).append('=');
+        buf.append(node.getEntry().getKeyHash().toBase64()).append('/');
+        buf.append(node.getEntry().getEntryId()).append('&');
+        
+        if ( (!isPermalink) && (!empty(offset)) )
+            buf.append(PARAM_OFFSET).append('=').append(offset).append('&');
+        
+        if ( (!isPermalink) && (!empty(tags)) )
+            buf.append(PARAM_TAGS).append('=').append(tags).append('&');
+        
+        return buf.toString();
+    }
+    
+    
+    private static final boolean empty(String val) { return (val == null) || (val.trim().length() <= 0); }
+    
+    public void render(User user, Writer out, Archive archive, BlogURI post, 
+                       boolean inlineReply, ThreadIndex index, String baseURI,
+                       String offset, String requestTags) throws IOException {
+        EntryContainer entry = archive.getEntry(post);
+        if (entry == null) return;
+        _entry = entry;
+   
+        _baseURI = baseURI;
+        _user = user;
+        _out = out;
+        _archive = archive;
+        _cutBody = false;
+        _showImages = true;
+        _headers = new HashMap();
+        _bodyBuffer = new StringBuffer(1024);
+        _postBodyBuffer = new StringBuffer(1024);
+        _addresses = new ArrayList();
+        _links = new ArrayList();
+        _blogs = new ArrayList();
+        _archives = new ArrayList();
+        
+        _parser.parse(entry.getEntry().getText(), this);
+        
+        out.write("<!-- body begin -->\n");
+        out.write("<!-- body meta begin -->\n");
+        out.write("<tr class=\"postMeta\" id=\"" + post.toString() + "\">\n");
+        
+        String subject = (String)_headers.get(HTMLRenderer.HEADER_SUBJECT);
+        if (subject == null)
+            subject = "";
+        out.write(" <td colspan=\"3\" class=\"postMetaSubject\">");
+        out.write(subject);
+        out.write("</td></tr>\n");
+        out.write("<tr class=\"postMeta\"><td colspan=\"3\" class=\"postMetaLink\">\n");
+        out.write("<a href=\"");
+        out.write(getMetadataURL(post.getKeyHash()));
+        out.write("\" title=\"View the author's profile\">");
+        
+        String author = null;
+        PetName pn = user.getPetNameDB().getByLocation(post.getKeyHash().toBase64());
+        if (pn == null) {
+            BlogInfo info = archive.getBlogInfo(post.getKeyHash());
+            if (info != null)
+                author = info.getProperty(BlogInfo.NAME);
+        } else {
+            author = pn.getName();
+        }
+        if ( (author == null) || (author.trim().length() <= 0) )
+            author = post.getKeyHash().toBase64().substring(0,6);
+        
+        ThreadNode node = index.getNode(post);
+        
+        out.write(author);
+        out.write("</a> @ ");
+        out.write(getEntryDate(post.getEntryId()));
+        
+        Collection tags = node.getTags();
+        if ( (tags != null) && (tags.size() > 0) ) {
+            out.write("\nTags: \n");
+            for (Iterator tagIter = tags.iterator(); tagIter.hasNext(); ) {
+                String tag = (String)tagIter.next();
+                out.write("<a href=\"");
+                out.write(getFilterByTagLink(baseURI, node, user, tag));
+                out.write("\" title=\"Filter threads to only include posts tagged as '");
+                out.write(tag);
+                out.write("'\">");
+                out.write(" " + tag);
+                out.write("</a>\n");
+            }
+        }
+        
+        out.write("\n<a href=\"");
+        out.write(getViewPostLink(baseURI, node, user, true, offset, requestTags));
+        out.write("\" title=\"Select a shareable link directly to this post\">permalink</a>\n");
+        
+        out.write("</td>\n</tr>\n");
+        out.write("<!-- body meta end -->\n");
+        out.write("<!-- body post begin -->\n");
+        out.write("<tr class=\"postData\">\n");
+        out.write("<td colspan=\"3\">\n");
+        out.write(_bodyBuffer.toString());
+        out.write("</td>\n</tr>\n");
+        out.write("<!-- body post end -->\n");
+        out.write("<!-- body details begin -->\n");
+        out.write(_postBodyBuffer.toString());
+/*
+"<tr class=\"postDetails\">\n" +
+" <form action=\"viewattachment.jsp\" method=\"GET\">\n" +
+" <td colspan=\"3\">\n" +
+" External links:\n" +
+"  <a href=\"external.jsp?foo\" title=\"View foo.i2p\">http://foo.i2p/</a>\n" +
+"  <a href=\"external.jsp?bar\" title=\"View bar.i2p\">http://bar.i2p/</a>\n" +
+" <br />\n" +
+" Attachments: <select name=\"attachment\">\n" +
+"  <option value=\"0\">sampleRawSML.sml: Sample SML file with headers (4KB, type text/plain)</option>\n" +
+" </select> <input type=\"submit\" name=\"action\" value=\"Download\" />\n" +
+" <br /><a href=\"\" title=\"Expand the entire thread\">Full thread</a>\n" +
+" <a href=\"\" title=\"Previous post in the thread\">Prev in thread</a> \n" +
+" <a href=\"\" title=\"Next post in the thread\">Next in thread</a> \n" +
+" </td>\n" +
+" </form>\n" +
+"</tr>\n" +
+ */
+        out.write("<!-- body details end -->\n");
+        if (inlineReply && user.getAuthenticated() ) {
+            String refuseReplies = (String)_headers.get(HTMLRenderer.HEADER_REFUSE_REPLIES);
+            // show the reply form if we are the author or replies have not been explicitly rejected
+            if ( (user.getBlog().equals(post.getKeyHash())) ||
+                 (refuseReplies == null) || (!Boolean.valueOf(refuseReplies).booleanValue()) ) {
+                out.write("<!-- body reply begin -->\n");
+                out.write("<form action=\"post.jsp\" method=\"POST\" enctype=\"multipart/form-data\">\n");
+                out.write("<input type=\"hidden\" name=\"inReplyTo\" value=\"");
+                out.write(Base64.encode(post.toString()));
+                out.write("\" />");
+                out.write("<input type=\"hidden\" name=\"entrysubject\" value=\"re: ");
+                out.write(HTMLRenderer.sanitizeTagParam(subject));
+                out.write("\" />");
+                out.write("<tr class=\"postReply\">\n");
+                out.write("<td colspan=\"3\">Reply: (<a href=\"smlref.jsp\" title=\"SML cheatsheet\">SML reference</a>)</td>\n</tr>\n");
+                out.write("<tr class=\"postReplyText\">\n");
+                out.write("<td colspan=\"3\"><textarea name=\"entrytext\" rows=\"2\" cols=\"100\"></textarea></td>\n");
+                out.write("</tr>\n");
+                out.write("<tr class=\"postReplyOptions\">\n");
+                out.write(" <td colspan=\"3\">\n");
+                out.write(" <input type=\"submit\" value=\"Preview...\" name=\"Post\" />\n");
+                out.write(" Tags: <input type=\"text\" size=\"10\" name=\"entrytags\" />\n");
+                out.write(" in a new thread? <input type=\"checkbox\" name=\"replyInNewThread\" />\n");
+                out.write(" allow replies? <input type=\"checkbox\" name=\"allowReplies\" checked=\"true\" />\n");
+                out.write(" attachment: <input type=\"file\" name=\"entryfile0\" />\n");
+                out.write(" </td>\n</tr>\n</form>\n");
+                out.write("<!-- body reply end -->\n");
+            }
+        }
+        out.write("<!-- body end -->\n");
+    }
+    
+    public void receiveEnd() { 
+        _postBodyBuffer.append("<tr class=\"postDetails\">\n");
+        _postBodyBuffer.append(" <form action=\"viewattachment.jsp\" method=\"GET\">\n");
+        _postBodyBuffer.append(" <td colspan=\"3\" valign=\"top\" align=\"left\">\n");
+        
+        _postBodyBuffer.append("<input type=\"hidden\" name=\"").append(ArchiveViewerBean.PARAM_BLOG);
+        _postBodyBuffer.append("\" value=\"");
+        if (_entry != null)
+            _postBodyBuffer.append(Base64.encode(_entry.getURI().getKeyHash().getData()));
+        else
+            _postBodyBuffer.append("unknown");
+        _postBodyBuffer.append("\" />\n");
+        _postBodyBuffer.append("<input type=\"hidden\" name=\"").append(ArchiveViewerBean.PARAM_ENTRY);
+        _postBodyBuffer.append("\" value=\"");
+        if (_entry != null) 
+            _postBodyBuffer.append(_entry.getURI().getEntryId());
+        else
+            _postBodyBuffer.append("unknown");
+        _postBodyBuffer.append("\" />\n");
+        
+        //_postBodyBuffer.append("<td colspan=\"2\" valign=\"top\" align=\"left\" ").append(getClass("summDetail")).append(" >\n");
+
+        if ( (_entry != null) && (_entry.getAttachments() != null) && (_entry.getAttachments().length > 0) ) {
+            _postBodyBuffer.append(getSpan("summDetailAttachment")).append("Attachments:</span> ");
+            _postBodyBuffer.append("<select ").append(getClass("summDetailAttachmentId")).append(" name=\"").append(ArchiveViewerBean.PARAM_ATTACHMENT).append("\">\n");
+            for (int i = 0; i < _entry.getAttachments().length; i++) {
+                _postBodyBuffer.append("<option value=\"").append(i).append("\">");
+                Attachment a = _entry.getAttachments()[i];
+                _postBodyBuffer.append(sanitizeString(a.getName()));
+                if ( (a.getDescription() != null) && (a.getDescription().trim().length() > 0) ) {
+                    _postBodyBuffer.append(": ");
+                    _postBodyBuffer.append(sanitizeString(a.getDescription()));
+                }
+                _postBodyBuffer.append(" (").append(a.getDataLength()/1024).append("KB");
+                _postBodyBuffer.append(", type ").append(sanitizeString(a.getMimeType())).append(")</option>\n");
+            }
+            _postBodyBuffer.append("</select>\n");
+            _postBodyBuffer.append("<input ").append(getClass("summDetailAttachmentDl")).append(" type=\"submit\" value=\"Download\" name=\"Download\" /><br />\n");
+        }
+
+        if (_blogs.size() > 0) {
+            _postBodyBuffer.append(getSpan("summDetailBlog")).append("Blog references:</span>");
+            for (int i = 0; i < _blogs.size(); i++) {
+                Blog b = (Blog)_blogs.get(i);
+                _postBodyBuffer.append("<a ").append(getClass("summDetailBlogLink")).append(" href=\"");
+                boolean expanded = (_user != null ? _user.getShowExpanded() : false);
+                boolean images = (_user != null ? _user.getShowImages() : false);
+                _postBodyBuffer.append(getPageURL(new Hash(Base64.decode(b.hash)), b.tag, b.entryId, -1, -1, expanded, images));
+                _postBodyBuffer.append("\">").append(sanitizeString(b.name)).append("</a> ");
+            }
+            _postBodyBuffer.append("<br />\n");
+        }
+
+        if (_links.size() > 0) {
+            _postBodyBuffer.append(getSpan("summDetailExternal")).append("External links:</span> ");
+            for (int i = 0; i < _links.size(); i++) {
+                Link l = (Link)_links.get(i);
+                _postBodyBuffer.append("<a ").append(getClass("summDetailExternalLink")).append(" href=\"externallink.jsp?");
+                if (l.schema != null)
+                    _postBodyBuffer.append("schema=").append(sanitizeURL(l.schema)).append('&');
+                if (l.location != null)
+                    _postBodyBuffer.append("location=").append(sanitizeURL(l.location)).append('&');
+                _postBodyBuffer.append("\">").append(sanitizeString(l.location));
+                _postBodyBuffer.append(getSpan("summDetailExternalNet")).append(" (").append(sanitizeString(l.schema)).append(")</span></a> ");
+            }
+            _postBodyBuffer.append("<br />\n");
+        }
+
+        if (_addresses.size() > 0) {
+            _postBodyBuffer.append(getSpan("summDetailAddr")).append("Addresses:</span>");
+            for (int i = 0; i < _addresses.size(); i++) {
+                Address a = (Address)_addresses.get(i);
+                importAddress(a);
+                PetName pn = null;
+                if (_user != null)
+                    pn = _user.getPetNameDB().getByLocation(a.location);
+                if (pn != null) {
+                    _postBodyBuffer.append(' ').append(getSpan("summDetailAddrKnown"));
+                    _postBodyBuffer.append(sanitizeString(pn.getName())).append("</span>");
+                } else {
+                    _postBodyBuffer.append(" <a ").append(getClass("summDetailAddrLink")).append(" href=\"addresses.jsp?");
+                    if (a.schema != null)
+                        _postBodyBuffer.append("network=").append(sanitizeTagParam(a.schema)).append('&');
+                    if (a.location != null)
+                        _postBodyBuffer.append("location=").append(sanitizeTagParam(a.location)).append('&');
+                    if (a.name != null)
+                        _postBodyBuffer.append("name=").append(sanitizeTagParam(a.name)).append('&');
+                    if (a.protocol != null)
+                        _postBodyBuffer.append("protocol=").append(sanitizeTagParam(a.protocol)).append('&');
+                    _postBodyBuffer.append("\">").append(sanitizeString(a.name)).append("</a>");
+                }                    
+            }
+            _postBodyBuffer.append("<br />\n");
+        }
+
+        if (_archives.size() > 0) {
+            _postBodyBuffer.append(getSpan("summDetailArchive")).append("Archives:</span>");
+            for (int i = 0; i < _archives.size(); i++) {
+                ArchiveRef a = (ArchiveRef)_archives.get(i);
+                _postBodyBuffer.append(" <a ").append(getClass("summDetailArchiveLink")).append(" href=\"").append(getArchiveURL(null, new SafeURL(a.locationSchema + "://" + a.location)));
+                _postBodyBuffer.append("\">").append(sanitizeString(a.name)).append("</a>");
+                if (a.description != null)
+                    _postBodyBuffer.append(": ").append(getSpan("summDetailArchiveDesc")).append(sanitizeString(a.description)).append("</span>");
+                if (null == _user.getPetNameDB().getByLocation(a.location)) {
+                    _postBodyBuffer.append(" <a ").append(getClass("summDetailArchiveBookmark")).append(" href=\"");
+                    _postBodyBuffer.append(getBookmarkURL(a.name, a.location, a.locationSchema, "syndiearchive"));
+                    _postBodyBuffer.append("\">bookmark it</a>");
+                }
+            }
+            _postBodyBuffer.append("<br />\n");
+        }
+
+        if (_entry != null) {
+            List replies = _archive.getIndex().getReplies(_entry.getURI());
+            if ( (replies != null) && (replies.size() > 0) ) {
+                _postBodyBuffer.append(getSpan("summDetailReplies")).append("Replies:</span> ");
+                for (int i = 0; i < replies.size(); i++) { 
+                    BlogURI reply = (BlogURI)replies.get(i);
+                    _postBodyBuffer.append("<a ").append(getClass("summDetailReplyLink")).append(" href=\"");
+                    _postBodyBuffer.append(getPageURL(reply.getKeyHash(), null, reply.getEntryId(), -1, -1, true, _user.getShowImages()));
+                    _postBodyBuffer.append("\">");
+                    _postBodyBuffer.append(getSpan("summDetailReplyAuthor"));
+                    BlogInfo replyAuthor = _archive.getBlogInfo(reply);
+                    if (replyAuthor != null) {
+                        _postBodyBuffer.append(sanitizeString(replyAuthor.getProperty(BlogInfo.NAME)));
+                    } else {
+                        _postBodyBuffer.append(reply.getKeyHash().toBase64().substring(0,16));
+                    }
+                    _postBodyBuffer.append("</span> on ");
+                    _postBodyBuffer.append(getSpan("summDetailReplyDate"));
+                    _postBodyBuffer.append(getEntryDate(reply.getEntryId()));
+                    _postBodyBuffer.append("</a></span> ");
+                }
+                _postBodyBuffer.append("<br />");
+            }
+        }
+
+        String inReplyTo = (String)_headers.get(HEADER_IN_REPLY_TO);
+        if ( (inReplyTo != null) && (inReplyTo.trim().length() > 0) ) {
+            BlogURI replyURI = new BlogURI(inReplyTo);
+            if (replyURI.getEntryId() > 0)
+                _postBodyBuffer.append(" <a ").append(getClass("summDetailParent")).append(" href=\"").append(getPageURL(replyURI.getKeyHash(), null, replyURI.getEntryId(), 0, 0, true, true)).append("\">(view parent)</a><br />\n");
+        }
+
+        _postBodyBuffer.append(" </td>\n");
+        _postBodyBuffer.append(" </form>\n");
+        _postBodyBuffer.append("</tr>\n");
+    }
+    
+    public void receiveHeaderEnd() {
+        //_preBodyBuffer.append("<table ").append(getClass("overall")).append(" width=\"100%\" border=\"0\">\n");
+        //renderSubjectCell();
+        //renderMetaCell();
+        //renderPreBodyCell();
+    }
+    
+    protected String getEntryURL() { return getEntryURL(_user != null ? _user.getShowImages() : false); }
+    protected String getEntryURL(boolean showImages) {
+        if (_entry == null) 
+            return _baseURI;
+        else
+            return _baseURI + '?' + PARAM_VIEW_POST + '=' + 
+                   Base64.encode(_entry.getURI().getKeyHash().getData()) + '/' 
+                   + _entry.getURI().getEntryId() + '&';
+    }
+    
+    public String getPageURL(User user, String selector, int numPerPage, int pageNum) { return _baseURI; }
+    
+    public String getPageURL(Hash blog, String tag, long entryId, String group, int numPerPage, int pageNum, boolean expandEntries, boolean showImages) {
+        StringBuffer buf = new StringBuffer(128);
+        buf.append(_baseURI).append('?');
+        if ( (blog != null) && (entryId > 0) ) {
+            buf.append(PARAM_VIEW_POST).append('=').append(Base64.encode(blog.getData())).append('/').append(entryId).append('&');
+            buf.append(PARAM_VISIBLE).append('=').append(Base64.encode(blog.getData())).append('/').append(entryId).append('&');
+        }
+        if (tag != null)
+            buf.append(PARAM_TAGS).append('=').append(sanitizeTagParam(tag)).append('&');
+        return buf.toString();
+    }
+    public String getArchiveURL(Hash blog, SafeURL archiveLocation) {
+        return "remote.jsp?" 
+               //+ "action=Continue..." // should this be the case?
+               + "&schema=" + sanitizeTagParam(archiveLocation.getSchema()) 
+               + "&location=" + sanitizeTagParam(archiveLocation.getLocation());
+    }
+    public String getBookmarkURL(String name, String location, String schema, String protocol) {
+        return "addresses.jsp?name=" + sanitizeTagParam(name)
+               + "&network=" + sanitizeTagParam(schema)
+               + "&protocol=" + sanitizeTagParam(protocol)
+               + "&location=" + sanitizeTagParam(location);
+               
+    }
+}