FProxyToadlet.java
| Index Score | ||
|---|---|---|
 |
 |
freenet.clients.http |
 |
 |
Freenet |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| JAVA0144 | JAVA0144 Line exceeds maximum M characters |  |
| OPERANDS | Number of operands | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERATORS | Number of operators | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| EXITS | Procedure exits | |
| LOGICAL_LINES | Number of statements | |
| COMPARISONS | Number of comparison operators | |
| SIZE | Size of the file in bytes | |
| ELOC | Effective lines of code | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| RETURNS | Number of return points from functions | |
| CYCLOMATIC | Cyclomatic complexity | |
| LOC | Lines of code | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0076 | JAVA0076 Use of magic number | |
| EXEC_COMMENTS | Comments in executable code | |
| BLOCKS | Number of blocks | |
| JAVA0264 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| LINES | Number of lines in the source file | |
| JAVA0150 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0036 | JAVA0036 Missing braces in while statement | |
| LINE_COMMENT | Number of line comments | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0170 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| JAVA0084 | JAVA0084 Should use compound assignment operator | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0174 | JAVA0174 Assigned local variable never used | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
| DECL_COMMENTS | Comments in declarations | |
| NEST_DEPTH | Maximum nesting depth | |
package freenet.clients.http;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.SocketException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashSet;
import java.util.Set;
import freenet.client.DefaultMIMETypes;
import freenet.client.FetchException;
import freenet.client.FetchResult;
import freenet.client.HighLevelSimpleClient;
import freenet.clients.http.bookmark.BookmarkManager;
import freenet.clients.http.filter.ContentFilter;
import freenet.clients.http.filter.FoundURICallback;
import freenet.clients.http.filter.UnsafeContentTypeException;
import freenet.clients.http.filter.ContentFilter.FilterOutput;
import freenet.config.Config;
import freenet.crypt.SHA256;
import freenet.keys.FreenetURI;
import freenet.l10n.L10n;
import freenet.node.Node;
import freenet.node.NodeClientCore;
import freenet.node.RequestStarter;
import freenet.support.HTMLEncoder;
import freenet.support.HTMLNode;
import freenet.support.HexUtil;
import freenet.support.Logger;
import freenet.support.MultiValueTable;
import freenet.support.SizeUtil;
import freenet.support.URLEncoder;
import freenet.support.api.Bucket;
import freenet.support.api.BucketFactory;
import freenet.support.api.HTTPRequest;
import freenet.support.io.Closer;
public final class FProxyToadlet extends Toadlet {
private static byte[] random;
final NodeClientCore core;
private static FoundURICallback prefetchHook;
static final Set prefetchAllowedTypes = new HashSet();
static {
// Only valid inlines
prefetchAllowedTypes.add("image/png");
prefetchAllowedTypes.add("image/jpeg");
prefetchAllowedTypes.add("image/gif");
}
// ?force= links become invalid after 2 hours.
private static final long FORCE_GRAIN_INTERVAL = 60*60*1000;
/** Maximum size for transparent pass-through, should be a config option */
static long MAX_LENGTH = 2*1024*1024; // 2MB
static final URI welcome;
static {
try {
welcome = new URI("/welcome/");
} catch (URISyntaxException e) {
throw new Error("Broken URI constructor: "+e, e);
}
}
public FProxyToadlet(final HighLevelSimpleClient client, NodeClientCore core) {
super(client);
client.setMaxLength(MAX_LENGTH);
client.setMaxIntermediateLength(MAX_LENGTH);
this.core = core;
prefetchHook = new FoundURICallback() {
public void foundURI(FreenetURI uri) {
// Ignore
}
public void foundURI(FreenetURI uri, boolean inline) {
if(!inline) return;
if(Logger.shouldLog(Logger.MINOR, this)) Logger.minor(this, "Prefetching "+uri);
client.prefetch(uri, 60*1000, 512*1024, prefetchAllowedTypes);
}
public void onText(String text, String type, URI baseURI) {
// Ignore
}
};
}
public String supportedMethods() {
return "GET";
}
@Override
public void handlePost(URI uri, HTTPRequest req, ToadletContext ctx) throws ToadletContextClosedException, IOException, RedirectException {
String ks = uri.getPath();
if (ks.equals("/")||ks.startsWith("/servlet/")) {
RedirectException re = new RedirectException();
try {
re.newuri = new URI("/welcome/");
} catch (URISyntaxException e) {
// HUH!?!
}
throw re;
}
}
public static void handleDownload(ToadletContext context, Bucket data, BucketFactory bucketFactory, String mimeType, String requestedMimeType, String forceString, boolean forceDownload, String basePath, FreenetURI key, String extras, String referrer, boolean downloadLink, ToadletContext ctx, NodeClientCore core) throws ToadletContextClosedException, IOException {
if(Logger.shouldLog(Logger.MINOR, FProxyToadlet.class))
Logger.minor(FProxyToadlet.class, "handleDownload(data.size="+data.size()+", mimeType="+mimeType+", requestedMimeType="+requestedMimeType+", forceDownload="+forceDownload+", basePath="+basePath+", key="+key);
String extrasNoMime = extras; // extras will not include MIME type to start with - REDFLAG maybe it should be an array
if(requestedMimeType != null) {
if(mimeType == null || !requestedMimeType.equals(mimeType)) {
if(extras == null) extras = "";
extras = extras + "&type=" + requestedMimeType;
}
mimeType = requestedMimeType;
}
long size = data.size();
long now = System.currentTimeMillis();
boolean force = false;
if(forceString != null) {
if(forceString.equals(getForceValue(key, now)) ||
forceString.equals(getForceValue(key, now-FORCE_GRAIN_INTERVAL)))
force = true;
}
try {
if((!force) && (!forceDownload)) {
FilterOutput fo = ContentFilter.filter(data, bucketFactory, mimeType, key.toURI(basePath), context.getContainer().enableInlinePrefetch() ? prefetchHook : null);
data = fo.data;
mimeType = fo.type;
if(horribleEvilHack(data) && !(mimeType.startsWith("application/rss+xml"))) {
HTMLNode pageNode = context.getPageMaker().getPageNode(l10n("dangerousRSSTitle"), context);
HTMLNode contentNode = context.getPageMaker().getContentNode(pageNode);
HTMLNode infobox = contentNode.addChild("div", "class", "infobox infobox-alert");
infobox.addChild("div", "class", "infobox-header", l10n("dangerousRSSSubtitle"));
HTMLNode infoboxContent = infobox.addChild("div", "class", "infobox-content");
infoboxContent.addChild("#", L10n.getString("FProxyToadlet.dangerousRSS", new String[] { "type" }, new String[] { mimeType }));
infoboxContent.addChild("p", l10n("options"));
HTMLNode optionList = infoboxContent.addChild("ul");
HTMLNode option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openPossRSSAsPlainText", new String[] { "link", "/link", "bold", "/bold" },
new String[] {
"<a href=\""+basePath+key.toString()+"?type=text/plain&force="+getForceValue(key,now)+extrasNoMime+"\">",
"</a>",
"<b>",
"</b>" });
// FIXME: is this safe? See bug #131
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openPossRSSForceDisk", new String[] { "link", "/link", "bold", "/bold" },
new String[] {
"<a href=\""+basePath+key.toString()+"?forcedownload"+extras+"\">",
"</a>",
"<b>",
"</b>" });
boolean mimeRSS = mimeType.startsWith("application/xml+rss") || mimeType.startsWith("text/xml"); /* blergh! */
if(!(mimeRSS || mimeType.startsWith("text/plain"))) {
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openRSSForce", new String[] { "link", "/link", "bold", "/bold", "mime" },
new String[] {
"<a href=\""+basePath+key.toString()+"?force="+getForceValue(key, now)+extras+"\">",
"</a>",
"<b>",
"</b>",
HTMLEncoder.encode(mimeType) /* these are not encoded because mostly they are tags, so we have to encode it */ });
}
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openRSSAsRSS", new String[] { "link", "/link", "bold", "/bold" },
new String[] {
"<a href=\""+basePath + key.toString() + "?type=application/xml+rss&force=" + getForceValue(key, now)+extrasNoMime+"\">",
"</a>",
"<b>",
"</b>" });
if(referrer != null) {
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.backToReferrer", new String[] { "link", "/link" },
new String[] { "<a href=\""+HTMLEncoder.encode(referrer)+"\">", "</a>" });
}
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.backToFProxy", new String[] { "link", "/link" },
new String[] { "<a href=\"/\">", "</a>" });
byte[] pageBytes = pageNode.generate().getBytes("UTF-8");
context.sendReplyHeaders(200, "OK", new MultiValueTable(), "text/html; charset=utf-8", pageBytes.length);
context.writeData(pageBytes);
return;
}
}
if (forceDownload) {
MultiValueTable headers = new MultiValueTable();
headers.put("Content-Disposition", "attachment; filename=\"" + key.getPreferredFilename() + '"');
context.sendReplyHeaders(200, "OK", headers, "application/x-msdownload", data.size());
context.writeData(data);
} else {
// Send the data, intact
context.sendReplyHeaders(200, "OK", new MultiValueTable(), mimeType, data.size());
context.writeData(data);
}
} catch (URISyntaxException use1) {
/* shouldn't happen */
use1.printStackTrace();
Logger.error(FProxyToadlet.class, "could not create URI", use1);
} catch (UnsafeContentTypeException e) {
HTMLNode pageNode = context.getPageMaker().getPageNode(l10n("dangerousContentTitle"), context);
HTMLNode contentNode = context.getPageMaker().getContentNode(pageNode);
HTMLNode infobox = contentNode.addChild("div", "class", "infobox infobox-alert");
infobox.addChild("div", "class", "infobox-header", e.getRawTitle());
HTMLNode infoboxContent = infobox.addChild("div", "class", "infobox-content");
HTMLNode list = infoboxContent.addChild("ul");
writeSizeAndMIME(list, size, mimeType, true);
infoboxContent.addChild("p").addChild(e.getHTMLExplanation());
infoboxContent.addChild("p", l10n("options"));
HTMLNode optionList = infoboxContent.addChild("ul");
HTMLNode option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openAsText", new String[] { "link", "/link" }, new String[] { "<a href=\""+basePath+key.toString()+"?type=text/plain"+extrasNoMime+"\">", "</a>" });
// FIXME: is this safe? See bug #131
if((mimeType.equals("application/x-freenet-index")) && (core.node.pluginManager.isPluginLoaded("plugins.ThawIndexBrowser.ThawIndexBrowser"))) {
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openAsThawIndex", new String[] { "link", "/link" }, new String[] { "<a href=\""+basePath + "plugins/plugins.ThawIndexBrowser.ThawIndexBrowser/?key=" + key.toString() + "\">", "</a>" });
}
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openForceDisk", new String[] { "link", "/link" }, new String[] { "<a href=\""+basePath+key.toString()+"?forcedownload"+extras+"\">", "</a>" });
if(!(mimeType.equals("application/octet-stream") || mimeType.equals("application/x-msdownload"))) {
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.openForce", new String[] { "link", "/link", "mime" }, new String[] { "<a href=\""+basePath + key.toString() + "?force=" + getForceValue(key, now)+extras+"\">", "</a>", HTMLEncoder.encode(mimeType)});
}
if(referrer != null) {
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.backToReferrer", new String[] { "link", "/link" },
new String[] { "<a href=\""+HTMLEncoder.encode(referrer)+"\">", "</a>" });
}
option = optionList.addChild("li");
L10n.addL10nSubstitution(option, "FProxyToadlet.backToFProxy", new String[] { "link", "/link" },
new String[] { "<a href=\"/\">", "</a>" });
if(ctx.isAllowedFullAccess()) {
option = optionList.addChild("li");
HTMLNode optionForm = ctx.addFormChild(option, "/queue/", "tooBigQueueForm");
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "key", key.toString() });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "return-type", "disk" });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "persistence", "forever" });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "type", mimeType });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "submit", "download", l10n("downloadInBackgroundToDisk") });
}
byte[] pageBytes = pageNode.generate().getBytes("UTF-8");
context.sendReplyHeaders(200, "OK", new MultiValueTable(), "text/html; charset=utf-8", pageBytes.length);
context.writeData(pageBytes);
}
}
private static String l10n(String msg) {
return L10n.getString("FProxyToadlet."+msg);
}
/** Does the first 512 bytes of the data contain anything that Firefox might regard as RSS?
* This is a horrible evil hack; we shouldn't be doing blacklisting, we should be doing whitelisting.
* REDFLAG Expect future security issues!
* @throws IOException */
private static boolean horribleEvilHack(Bucket data) throws IOException {
InputStream is = null;
try {
int sz = (int) Math.min(data.size(), 512);
if(sz == 0)
return false;
is = data.getInputStream();
byte[] buf = new byte[sz];
// FIXME Fortunately firefox doesn't detect RSS in UTF16 etc ... yet
is.read(buf);
/**
* Look for any of the following strings:
* <rss
* <feed
* <rdf:RDF
*
* If they start at the beginning of the file, or are preceded by one or more <! or <? tags,
* then firefox will read it as RSS. In which case we must force it to be downloaded to disk.
*/
if(checkForString(buf, "<rss"))
return true;
if(checkForString(buf, "<feed"))
return true;
if(checkForString(buf, "<rdf:RDF"))
return true;
}
finally {
Closer.close(is);
}
return false;
}
/** Scan for a US-ASCII (byte = char) string within a given buffer of possibly binary data */
private static boolean checkForString(byte[] buf, String find) {
int offset = 0;
int bufProgress = 0;
while(offset < buf.length) {
byte b = buf[offset];
if(b == find.charAt(bufProgress)) {
bufProgress++;
if(bufProgress == find.length()) return true;
} else {
bufProgress = 0;
if(bufProgress != 0)
continue; // check if this byte is equal to the first one
}
offset++;
}
return false;
}
@Override
public void handleGet(URI uri, HTTPRequest httprequest, ToadletContext ctx)
throws ToadletContextClosedException, IOException, RedirectException {
String ks = uri.getPath();
boolean logMINOR = Logger.shouldLog(Logger.MINOR, this);
if (ks.equals("/")) {
if (httprequest.isParameterSet("key")) {
MultiValueTable headers = new MultiValueTable();
String k = httprequest.getParam("key");
FreenetURI newURI;
try {
newURI = new FreenetURI(k);
} catch (MalformedURLException e) {
Logger.normal(this, "Invalid key: "+e+" for "+k, e);
sendErrorPage(ctx, 404, l10n("notFoundTitle"), L10n.getString("FProxyToadlet.invalidKeyWithReason", new String[] { "reason" }, new String[] { e.toString() }));
return;
}
if(logMINOR) Logger.minor(this, "Redirecting to FreenetURI: "+newURI);
String type = httprequest.getParam("type");
if ((type != null) && (type.length() > 0)) {
headers.put("Location", "/"+newURI + "?type=" + type);
} else {
headers.put("Location", "/"+newURI);
}
ctx.sendReplyHeaders(302, "Found", headers, null, 0);
return;
}
RedirectException re = new RedirectException();
try {
String querystring = uri.getQuery();
if (querystring == null) {
re.newuri = welcome;
} else {
// TODP possibly a proper URLEncode method
querystring = querystring.replace(' ', '+');
re.newuri = new URI("/welcome/?"+querystring);
}
} catch (URISyntaxException e) {
// HUH!?!
}
throw re;
}else if(ks.equals("/favicon.ico")){
byte[] buf = new byte[1024];
int len;
InputStream strm = getClass().getResourceAsStream("staticfiles/favicon.ico");
if (strm == null) {
this.sendErrorPage(ctx, 404, l10n("pathNotFoundTitle"), l10n("pathNotFound"));
return;
}
ctx.sendReplyHeaders(200, "OK", null, "image/x-icon", strm.available());
while ( (len = strm.read(buf)) > 0) {
ctx.writeData(buf, 0, len);
}
return;
}else if(ks.equals("/robots.txt") && ctx.doRobots()){
this.writeTextReply(ctx, 200, "Ok", "User-agent: *\nDisallow: /");
return;
}else if(ks.startsWith("/darknet/")) { //TODO: remove when obsolete
MultiValueTable headers = new MultiValueTable();
headers.put("Location", "/friends/");
ctx.sendReplyHeaders(301, "Permanent Redirect", headers, null, 0);
return;
}else if(ks.startsWith("/opennet/")) { //TODO: remove when obsolete
MultiValueTable headers = new MultiValueTable();
headers.put("Location", "/strangers/");
ctx.sendReplyHeaders(301, "Permanent Redirect", headers, null, 0);
return;
}
if(ks.startsWith("/"))
ks = ks.substring(1);
long maxSize = httprequest.getLongParam("max-size", MAX_LENGTH);
FreenetURI key;
try {
key = new FreenetURI(ks);
} catch (MalformedURLException e) {
HTMLNode pageNode = ctx.getPageMaker().getPageNode(l10n("invalidKeyTitle"), ctx);
HTMLNode contentNode = ctx.getPageMaker().getContentNode(pageNode);
HTMLNode errorInfobox = contentNode.addChild("div", "class", "infobox infobox-error");
errorInfobox.addChild("div", "class", "infobox-header", L10n.getString("FProxyToadlet.invalidKeyWithReason", new String[] { "reason" }, new String[] { e.toString() }));
HTMLNode errorContent = errorInfobox.addChild("div", "class", "infobox-content");
errorContent.addChild("#", l10n("expectedKeyButGot"));
errorContent.addChild("code", ks);
errorContent.addChild("br");
errorContent.addChild(ctx.getPageMaker().createBackLink(ctx, l10n("goBack")));
errorContent.addChild("br");
addHomepageLink(errorContent);
this.writeHTMLReply(ctx, 400, l10n("invalidKeyTitle"), pageNode.generate());
return;
}
String requestedMimeType = httprequest.getParam("type", null);
String override = (requestedMimeType == null) ? "" : "?type="+URLEncoder.encode(requestedMimeType,true);
// No point passing ?force= across a redirect, since the key will change.
// However, there is every point in passing ?forcedownload.
if(httprequest.isParameterSet("forcedownload")) {
if(override.length() == 0) override = "?forcedownload";
else override = override+"&forcedownload";
}
try {
if(Logger.shouldLog(Logger.MINOR, this))
Logger.minor(this, "FProxy fetching "+key+" ("+maxSize+ ')');
FetchResult result = fetch(key, maxSize, httprequest /* fixme replace if HTTPRequest ever becomes comparable */);
// Now, is it safe?
Bucket data = result.asBucket();
String mimeType = result.getMimeType();
String referer = sanitizeReferer(ctx);
handleDownload(ctx, data, ctx.getBucketFactory(), mimeType, requestedMimeType, httprequest.getParam("force", null), httprequest.isParameterSet("forcedownload"), "/", key, maxSize != MAX_LENGTH ? "&max-size="+SizeUtil.formatSizeWithoutSpace(maxSize) : "", referer, true, ctx, core);
} catch (FetchException e) {
String msg = e.getMessage();
if(Logger.shouldLog(Logger.MINOR, this))
Logger.minor(this, "Failed to fetch "+uri+" : "+e);
if(e.newURI != null) {
Toadlet.writePermanentRedirect(ctx, msg, '/' +e.newURI.toACIIString() + override);
} else if(e.mode == FetchException.TOO_BIG) {
HTMLNode pageNode = ctx.getPageMaker().getPageNode(l10n("fileInformationTitle"), ctx);
HTMLNode contentNode = ctx.getPageMaker().getContentNode(pageNode);
HTMLNode infobox = contentNode.addChild("div", "class", "infobox infobox-information");
infobox.addChild("div", "class", "infobox-header", l10n("largeFile"));
HTMLNode infoboxContent = infobox.addChild("div", "class", "infobox-content");
HTMLNode fileInformationList = infoboxContent.addChild("ul");
HTMLNode option = fileInformationList.addChild("li");
option.addChild("#", (l10n("filenameLabel") + ' '));
option.addChild("a", "href", '/' + key.toString(), getFilename(e, key, e.getExpectedMimeType()));
String mime = writeSizeAndMIME(fileInformationList, e);
infobox = contentNode.addChild("div", "class", "infobox infobox-information");
infobox.addChild("div", "class", "infobox-header", l10n("explanationTitle"));
infoboxContent = infobox.addChild("div", "class", "infobox-content");
infoboxContent.addChild("#", l10n("largeFileExplanationAndOptions"));
HTMLNode optionList = infoboxContent.addChild("ul");
option = optionList.addChild("li");
HTMLNode optionForm = option.addChild("form", new String[] { "action", "method" }, new String[] {'/' + key.toString(), "get" });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "max-size", String.valueOf(e.expectedSize == -1 ? Long.MAX_VALUE : e.expectedSize*2) });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "submit", "fetch", l10n("fetchLargeFileAnywayAndDisplay") });
optionList.addChild("li").addChild("a", new String[] { "href", "title" }, new String[] { "/", "FProxy home page" }, l10n("abortToHomepage"));
if(ctx.isAllowedFullAccess()) {
option = optionList.addChild("li");
optionForm = ctx.addFormChild(option, "/queue/", "tooBigQueueForm");
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "key", key.toString() });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "return-type", "disk" });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "persistence", "forever" });
if (mime != null) {
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "type", mime });
}
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "submit", "download", l10n("downloadInBackgroundToDisk") });
}
writeHTMLReply(ctx, 200, "OK", pageNode.generate());
} else {
HTMLNode pageNode = ctx.getPageMaker().getPageNode(FetchException.getShortMessage(e.mode), ctx);
HTMLNode contentNode = ctx.getPageMaker().getContentNode(pageNode);
HTMLNode infobox = contentNode.addChild("div", "class", "infobox infobox-error");
infobox.addChild("div", "class", "infobox-header", l10n("errorWithReason", "error", FetchException.getShortMessage(e.mode)));
HTMLNode infoboxContent = infobox.addChild("div", "class", "infobox-content");
HTMLNode fileInformationList = infoboxContent.addChild("ul");
HTMLNode option = fileInformationList.addChild("li");
option.addChild("#", (l10n("filenameLabel") + ' '));
option.addChild("a", "href", '/' + key.toString(), getFilename(e, key, e.getExpectedMimeType()));
String mime = writeSizeAndMIME(fileInformationList, e);
infobox.addChild("div", "class", "infobox-header", l10n("explanationTitle"));
infoboxContent = infobox.addChild("div", "class", "infobox-content");
infoboxContent.addChild("p", l10n("unableToRetrieve"));
if(e.isFatal())
infoboxContent.addChild("p", l10n("errorIsFatal"));
infoboxContent.addChild("p", msg);
if(e.errorCodes != null) {
infoboxContent.addChild("p").addChild("pre").addChild("#", e.errorCodes.toVerboseString());
}
infobox.addChild("div", "class", "infobox-header", l10n("options"));
infoboxContent = infobox.addChild("div", "class", "infobox-content");
HTMLNode optionList = infoboxContent.addChild("ul");
if(!e.isFatal() && ctx.isAllowedFullAccess()) {
option = optionList.addChild("li");
HTMLNode optionForm = ctx.addFormChild(option, "/queue/", "dnfQueueForm");
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "key", key.toString() });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "return-type", "disk" });
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "persistence", "forever" });
if (mime != null) {
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "hidden", "type", mime });
}
optionForm.addChild("input", new String[] { "type", "name", "value" }, new String[] { "submit", "download", l10n("downloadInBackgroundToDisk")});
optionList.addChild("li").
addChild("a", "href", getLink(key, requestedMimeType, maxSize, httprequest.getParam("force", null), httprequest.isParameterSet("forcedownload"))).addChild("#", l10n("retryNow"));
}
optionList.addChild("li").addChild("a", new String[] { "href", "title" }, new String[] { "/", L10n.getString("Toadlet.homepage") }, l10n("abortToHomepage"));
option = optionList.addChild("li");
option.addChild(ctx.getPageMaker().createBackLink(ctx, l10n("goBackToPrev")));
this.writeHTMLReply(ctx, (e.mode == 10) ? 404 : 500 /* close enough - FIXME probably should depend on status code */,
"Internal Error", pageNode.generate());
}
} catch (SocketException e) {
// Probably irrelevant
if(e.getMessage().equals("Broken pipe")) {
if(Logger.shouldLog(Logger.MINOR, this))
Logger.minor(this, "Caught "+e+" while handling GET", e);
} else {
Logger.normal(this, "Caught "+e);
}
throw e;
} catch (Throwable t) {
writeInternalError(t, ctx);
}
}
private static String writeSizeAndMIME(HTMLNode fileInformationList, FetchException e) {
boolean finalized = e.finalizedSize();
String mime = e.getExpectedMimeType();
long size = e.expectedSize;
writeSizeAndMIME(fileInformationList, size, mime, finalized);
return mime;
}
private static void writeSizeAndMIME(HTMLNode fileInformationList, long size, String mime, boolean finalized) {
if(size > 0) {
if (finalized) {
fileInformationList.addChild("li", (l10n("sizeLabel") + ' ') + SizeUtil.formatSize(size));
} else {
fileInformationList.addChild("li", (l10n("sizeLabel") + ' ')+ SizeUtil.formatSize(size) + l10n("mayChange"));
}
} else {
fileInformationList.addChild("li", l10n("sizeUnknown"));
}
if(mime != null) {
fileInformationList.addChild("li", L10n.getString("FProxyToadlet."+(finalized ? "mimeType" : "expectedMimeType"), new String[] { "mime" }, new String[] { mime }));
} else {
fileInformationList.addChild("li", l10n("unknownMIMEType"));
}
}
private String l10n(String key, String pattern, String value) {
return L10n.getString("FProxyToadlet."+key, new String[] { pattern }, new String[] { value });
}
private String getLink(FreenetURI uri, String requestedMimeType, long maxSize, String force,
boolean forceDownload) {
StringBuffer sb = new StringBuffer();
sb.append("/");
sb.append(uri.toACIIString());
char c = '?';
if(requestedMimeType != null) {
sb.append(c).append("type=").append(URLEncoder.encode(requestedMimeType,false)); c = '&';
}
if(maxSize > 0) {
sb.append(c).append("max-size=").append(maxSize); c = '&';
}
if(force != null) {
sb.append(c).append("force=").append(force); c = '&';
}
if(forceDownload) {
sb.append(c).append("forcedownload=true"); c = '&';
}
return sb.toString();
}
private String sanitizeReferer(ToadletContext ctx) {
// FIXME we do something similar in the GenericFilterCallback thingy?
String referer = (String) ctx.getHeaders().get("referer");
if(referer != null) {
try {
URI refererURI = new URI(referer);
String path = refererURI.getPath();
while(path.startsWith("/")) path = path.substring(1);
if("".equals(path)) return "/";
FreenetURI furi = new FreenetURI(path);
HTTPRequest req = new HTTPRequestImpl(refererURI);
String type = req.getParam("type");
referer = "/" + furi.toString();
if(type != null && type.length() > 0)
referer += "?type=" + type;
} catch (MalformedURLException e) {
referer = "/";
Logger.normal(this, "Caught MalformedURLException on the referer : "+e.getMessage());
} catch (Throwable t) {
Logger.error(this, "Caught handling referrer: "+t+" for "+referer, t);
referer = null;
}
}
return referer;
}
private static String getForceValue(FreenetURI key, long time) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try{
bos.write(random);
bos.write(key.toString().getBytes("UTF-8"));
bos.write(Long.toString(time / FORCE_GRAIN_INTERVAL).getBytes("UTF-8"));
} catch (IOException e) {
throw new Error(e);
}
String f = HexUtil.bytesToHex(SHA256.digest(bos.toByteArray()));
return f;
}
public static void maybeCreateFProxyEtc(NodeClientCore core, Node node, Config config, SimpleToadletServer server, BookmarkManager bookmarks) throws IOException {
// FIXME how to change these on the fly when the interface language is changed?
HighLevelSimpleClient client = core.makeClient(RequestStarter.INTERACTIVE_PRIORITY_CLASS, true);
random = new byte[32];
core.random.nextBytes(random);
FProxyToadlet fproxy = new FProxyToadlet(client, core);
core.setFProxy(fproxy);
server.register(fproxy, "/", false, "FProxyToadlet.welcomeTitle", "FProxyToadlet.welcome", false, null);
UserAlertsToadlet alerts = new UserAlertsToadlet(client, node, core);
server.register(alerts, "/alerts/", true, "FProxyToadlet.alertsTitle", "FProxyToadlet.alerts", true, null);
PproxyToadlet pproxy = new PproxyToadlet(client, node, core);
server.register(pproxy, "/plugins/", true, "FProxyToadlet.pluginsTitle", "FProxyToadlet.plugins", true, null);
WelcomeToadlet welcometoadlet = new WelcomeToadlet(client, core, node, bookmarks);
server.register(welcometoadlet, "/welcome/", true, false);
ConfigToadlet configtoadlet = new ConfigToadlet(client, config, node, core);
server.register(configtoadlet, "/config/", true, "FProxyToadlet.configTitle", "FProxyToadlet.config", true, null);
SymlinkerToadlet symlinkToadlet = new SymlinkerToadlet(client, node);
server.register(symlinkToadlet, "/sl/", true, false);
DarknetConnectionsToadlet friendsToadlet = new DarknetConnectionsToadlet(node, core, client);
// server.register(friendsToadlet, "/darknet/", true, l10n("friendsTitle"), l10n("friends"), true);
server.register(friendsToadlet, "/friends/", true, "FProxyToadlet.friendsTitle", "FProxyToadlet.friends", true, null);
OpennetConnectionsToadlet opennetToadlet = new OpennetConnectionsToadlet(node, core, client);
// server.register(opennetToadlet, "/opennet/", true, l10n("opennetTitle"), l10n("opennet"), true, opennetToadlet);
server.register(opennetToadlet, "/strangers/", true, "FProxyToadlet.opennetTitle", "FProxyToadlet.opennet", true, opennetToadlet);
N2NTMToadlet n2ntmToadlet = new N2NTMToadlet(node, core, client);
server.register(n2ntmToadlet, "/send_n2ntm/", true, true);
QueueToadlet queueToadlet = new QueueToadlet(core, core.getFCPServer(), client);
server.register(queueToadlet, "/queue/", true, "FProxyToadlet.queueTitle", "FProxyToadlet.queue", false, null);
StatisticsToadlet statisticsToadlet = new StatisticsToadlet(node, core, client);
server.register(statisticsToadlet, "/stats/", true, "FProxyToadlet.statsTitle", "FProxyToadlet.stats", true, null);
LocalFileInsertToadlet localFileInsertToadlet = new LocalFileInsertToadlet(core, client);
server.register(localFileInsertToadlet, "/files/", true, false);
BookmarkEditorToadlet bookmarkEditorToadlet = new BookmarkEditorToadlet(client, core, bookmarks);
server.register(bookmarkEditorToadlet, "/bookmarkEditor/", true, false);
BrowserTestToadlet browsertTestToadlet = new BrowserTestToadlet(client, core);
server.register(browsertTestToadlet, "/test/", true, false);
ConnectivityToadlet connectivityToadlet = new ConnectivityToadlet(client, node, core);
server.register(connectivityToadlet, "/connectivity/", true, "ConnectivityToadlet.connectivityTitle", "ConnectivityToadlet.connectivity", true, null);
TranslationToadlet translationToadlet = new TranslationToadlet(client, core);
server.register(translationToadlet, TranslationToadlet.TOADLET_URL, true, true);
FirstTimeWizardToadlet firstTimeWizardToadlet = new FirstTimeWizardToadlet(client, node, core);
server.register(firstTimeWizardToadlet, FirstTimeWizardToadlet.TOADLET_URL, true, false);
}
/**
* Get expected filename for a file.
* @param e The FetchException.
* @param uri The original URI.
* @param expectedMimeType The expected MIME type.
*/
private String getFilename(FetchException e, FreenetURI uri, String expectedMimeType) {
String s = uri.getPreferredFilename();
int dotIdx = s.lastIndexOf('.');
String ext = DefaultMIMETypes.getExtension(expectedMimeType);
if(ext == null)
ext = "bin";
if((dotIdx == -1) && (expectedMimeType != null)) {
s += '.' + ext;
return s;
}
if(dotIdx != -1) {
String oldExt = s.substring(dotIdx+1);
if(DefaultMIMETypes.isValidExt(expectedMimeType, oldExt))
return s;
return s + '.' + ext;
}
return s + '.' + ext;
}
}
The table below shows all metrics for FProxyToadlet.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 98.00 | Number of blocks | |
| BLOCK_COMMENT | 1.00 | Number of block comment lines | |
| COMMENTS | 41.00 | Comment lines | |
| COMMENT_DENSITY | 0.08 | Comment density | |
| COMPARISONS | 110.00 | Number of comparison operators | |
| CYCLOMATIC | 119.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 5.00 | Comments in declarations | |
| DOC_COMMENT | 21.00 | Number of javadoc comment lines | |
| ELOC | 529.00 | Effective lines of code | |
| EXEC_COMMENTS | 19.00 | Comments in executable code | |
| EXITS | 121.00 | Procedure exits | |
| FUNCTIONS | 19.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 107.16 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 141.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 1.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 23.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 1.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 20.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 2.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 3.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 3.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 0.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 3.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 1.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 3.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 0.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 1.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 46.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 2121.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 2.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 1.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 2.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 2.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 2.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 1.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 3.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 4.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 1.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 0.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 736.00 | Number of lines in the source file | |
| LINE_COMMENT | 19.00 | Number of line comments | |
| LOC | 601.00 | Lines of code | |
| LOGICAL_LINES | 386.00 | Number of statements | |
| LOOPS | 3.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 2434.00 | Number of operands | |
| OPERATORS | 4024.00 | Number of operators | |
| PARAMS | 57.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 6458.00 | Halstead program length | |
| PROGRAM_VOCAB | 692.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 84.00 | Number of return points from functions | |
| SIZE | 32906.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 636.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 56.00 | Number of unique operators | |
| WHITESPACE | 94.00 | Number of whitespace lines | |