Examples with SAXException org.xml.sax.SAXException used on opensource projects

Example 11 with SAXException

use of org.xml.sax.SAXException in project tomcat by apache.

the class WebdavStatus method doMkcol.

/**
     * MKCOL Method.
     * @param req The Servlet request
     * @param resp The Servlet response
     * @throws ServletException If an error occurs
     * @throws IOException If an IO error occurs
     */
protected void doMkcol(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    if (readOnly) {
        resp.sendError(WebdavStatus.SC_FORBIDDEN);
        return;
    }
    if (isLocked(req)) {
        resp.sendError(WebdavStatus.SC_LOCKED);
        return;
    }
    String path = getRelativePath(req);
    WebResource resource = resources.getResource(path);
    // path
    if (resource.exists()) {
        // Get allowed methods
        StringBuilder methodsAllowed = determineMethodsAllowed(req);
        resp.addHeader("Allow", methodsAllowed.toString());
        resp.sendError(WebdavStatus.SC_METHOD_NOT_ALLOWED);
        return;
    }
    if (req.getContentLengthLong() > 0) {
        DocumentBuilder documentBuilder = getDocumentBuilder();
        try {
            // Document document =
            documentBuilder.parse(new InputSource(req.getInputStream()));
            // TODO : Process this request body
            resp.sendError(WebdavStatus.SC_NOT_IMPLEMENTED);
            return;
        } catch (SAXException saxe) {
            // Parse error - assume invalid content
            resp.sendError(WebdavStatus.SC_UNSUPPORTED_MEDIA_TYPE);
            return;
        }
    }
    if (resources.mkdir(path)) {
        resp.setStatus(WebdavStatus.SC_CREATED);
        // Removing any lock-null resource which would be present
        lockNullResources.remove(path);
    } else {
        resp.sendError(WebdavStatus.SC_CONFLICT, WebdavStatus.getStatusText(WebdavStatus.SC_CONFLICT));
    }
}

Example 12 with SAXException

use of org.xml.sax.SAXException in project tomcat by apache.

the class WebdavStatus method doLock.

/**
     * LOCK Method.
     * @param req The Servlet request
     * @param resp The Servlet response
     * @throws ServletException If an error occurs
     * @throws IOException If an IO error occurs
     */
protected void doLock(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    if (readOnly) {
        resp.sendError(WebdavStatus.SC_FORBIDDEN);
        return;
    }
    if (isLocked(req)) {
        resp.sendError(WebdavStatus.SC_LOCKED);
        return;
    }
    LockInfo lock = new LockInfo();
    // Parsing lock request
    // Parsing depth header
    String depthStr = req.getHeader("Depth");
    if (depthStr == null) {
        lock.depth = maxDepth;
    } else {
        if (depthStr.equals("0")) {
            lock.depth = 0;
        } else {
            lock.depth = maxDepth;
        }
    }
    // Parsing timeout header
    int lockDuration = DEFAULT_TIMEOUT;
    String lockDurationStr = req.getHeader("Timeout");
    if (lockDurationStr == null) {
        lockDuration = DEFAULT_TIMEOUT;
    } else {
        int commaPos = lockDurationStr.indexOf(',');
        // If multiple timeouts, just use the first
        if (commaPos != -1) {
            lockDurationStr = lockDurationStr.substring(0, commaPos);
        }
        if (lockDurationStr.startsWith("Second-")) {
            lockDuration = Integer.parseInt(lockDurationStr.substring(7));
        } else {
            if (lockDurationStr.equalsIgnoreCase("infinity")) {
                lockDuration = MAX_TIMEOUT;
            } else {
                try {
                    lockDuration = Integer.parseInt(lockDurationStr);
                } catch (NumberFormatException e) {
                    lockDuration = MAX_TIMEOUT;
                }
            }
        }
        if (lockDuration == 0) {
            lockDuration = DEFAULT_TIMEOUT;
        }
        if (lockDuration > MAX_TIMEOUT) {
            lockDuration = MAX_TIMEOUT;
        }
    }
    lock.expiresAt = System.currentTimeMillis() + (lockDuration * 1000);
    int lockRequestType = LOCK_CREATION;
    Node lockInfoNode = null;
    DocumentBuilder documentBuilder = getDocumentBuilder();
    try {
        Document document = documentBuilder.parse(new InputSource(req.getInputStream()));
        // Get the root element of the document
        Element rootElement = document.getDocumentElement();
        lockInfoNode = rootElement;
    } catch (IOException e) {
        lockRequestType = LOCK_REFRESH;
    } catch (SAXException e) {
        lockRequestType = LOCK_REFRESH;
    }
    if (lockInfoNode != null) {
        // Reading lock information
        NodeList childList = lockInfoNode.getChildNodes();
        StringWriter strWriter = null;
        DOMWriter domWriter = null;
        Node lockScopeNode = null;
        Node lockTypeNode = null;
        Node lockOwnerNode = null;
        for (int i = 0; i < childList.getLength(); i++) {
            Node currentNode = childList.item(i);
            switch(currentNode.getNodeType()) {
                case Node.TEXT_NODE:
                    break;
                case Node.ELEMENT_NODE:
                    String nodeName = currentNode.getNodeName();
                    if (nodeName.endsWith("lockscope")) {
                        lockScopeNode = currentNode;
                    }
                    if (nodeName.endsWith("locktype")) {
                        lockTypeNode = currentNode;
                    }
                    if (nodeName.endsWith("owner")) {
                        lockOwnerNode = currentNode;
                    }
                    break;
            }
        }
        if (lockScopeNode != null) {
            childList = lockScopeNode.getChildNodes();
            for (int i = 0; i < childList.getLength(); i++) {
                Node currentNode = childList.item(i);
                switch(currentNode.getNodeType()) {
                    case Node.TEXT_NODE:
                        break;
                    case Node.ELEMENT_NODE:
                        String tempScope = currentNode.getNodeName();
                        if (tempScope.indexOf(':') != -1) {
                            lock.scope = tempScope.substring(tempScope.indexOf(':') + 1);
                        } else {
                            lock.scope = tempScope;
                        }
                        break;
                }
            }
            if (lock.scope == null) {
                // Bad request
                resp.setStatus(WebdavStatus.SC_BAD_REQUEST);
            }
        } else {
            // Bad request
            resp.setStatus(WebdavStatus.SC_BAD_REQUEST);
        }
        if (lockTypeNode != null) {
            childList = lockTypeNode.getChildNodes();
            for (int i = 0; i < childList.getLength(); i++) {
                Node currentNode = childList.item(i);
                switch(currentNode.getNodeType()) {
                    case Node.TEXT_NODE:
                        break;
                    case Node.ELEMENT_NODE:
                        String tempType = currentNode.getNodeName();
                        if (tempType.indexOf(':') != -1) {
                            lock.type = tempType.substring(tempType.indexOf(':') + 1);
                        } else {
                            lock.type = tempType;
                        }
                        break;
                }
            }
            if (lock.type == null) {
                // Bad request
                resp.setStatus(WebdavStatus.SC_BAD_REQUEST);
            }
        } else {
            // Bad request
            resp.setStatus(WebdavStatus.SC_BAD_REQUEST);
        }
        if (lockOwnerNode != null) {
            childList = lockOwnerNode.getChildNodes();
            for (int i = 0; i < childList.getLength(); i++) {
                Node currentNode = childList.item(i);
                switch(currentNode.getNodeType()) {
                    case Node.TEXT_NODE:
                        lock.owner += currentNode.getNodeValue();
                        break;
                    case Node.ELEMENT_NODE:
                        strWriter = new StringWriter();
                        domWriter = new DOMWriter(strWriter, true);
                        domWriter.print(currentNode);
                        lock.owner += strWriter.toString();
                        break;
                }
            }
            if (lock.owner == null) {
                // Bad request
                resp.setStatus(WebdavStatus.SC_BAD_REQUEST);
            }
        } else {
            lock.owner = "";
        }
    }
    String path = getRelativePath(req);
    lock.path = path;
    WebResource resource = resources.getResource(path);
    Enumeration<LockInfo> locksList = null;
    if (lockRequestType == LOCK_CREATION) {
        // Generating lock id
        String lockTokenStr = req.getServletPath() + "-" + lock.type + "-" + lock.scope + "-" + req.getUserPrincipal() + "-" + lock.depth + "-" + lock.owner + "-" + lock.tokens + "-" + lock.expiresAt + "-" + System.currentTimeMillis() + "-" + secret;
        String lockToken = MD5Encoder.encode(ConcurrentMessageDigest.digestMD5(lockTokenStr.getBytes(StandardCharsets.ISO_8859_1)));
        if (resource.isDirectory() && lock.depth == maxDepth) {
            // Locking a collection (and all its member resources)
            // Checking if a child resource of this collection is
            // already locked
            Vector<String> lockPaths = new Vector<>();
            locksList = collectionLocks.elements();
            while (locksList.hasMoreElements()) {
                LockInfo currentLock = locksList.nextElement();
                if (currentLock.hasExpired()) {
                    resourceLocks.remove(currentLock.path);
                    continue;
                }
                if ((currentLock.path.startsWith(lock.path)) && ((currentLock.isExclusive()) || (lock.isExclusive()))) {
                    // A child collection of this collection is locked
                    lockPaths.addElement(currentLock.path);
                }
            }
            locksList = resourceLocks.elements();
            while (locksList.hasMoreElements()) {
                LockInfo currentLock = locksList.nextElement();
                if (currentLock.hasExpired()) {
                    resourceLocks.remove(currentLock.path);
                    continue;
                }
                if ((currentLock.path.startsWith(lock.path)) && ((currentLock.isExclusive()) || (lock.isExclusive()))) {
                    // A child resource of this collection is locked
                    lockPaths.addElement(currentLock.path);
                }
            }
            if (!lockPaths.isEmpty()) {
                // One of the child paths was locked
                // We generate a multistatus error report
                Enumeration<String> lockPathsList = lockPaths.elements();
                resp.setStatus(WebdavStatus.SC_CONFLICT);
                XMLWriter generatedXML = new XMLWriter();
                generatedXML.writeXMLHeader();
                generatedXML.writeElement("D", DEFAULT_NAMESPACE, "multistatus", XMLWriter.OPENING);
                while (lockPathsList.hasMoreElements()) {
                    generatedXML.writeElement("D", "response", XMLWriter.OPENING);
                    generatedXML.writeElement("D", "href", XMLWriter.OPENING);
                    generatedXML.writeText(lockPathsList.nextElement());
                    generatedXML.writeElement("D", "href", XMLWriter.CLOSING);
                    generatedXML.writeElement("D", "status", XMLWriter.OPENING);
                    generatedXML.writeText("HTTP/1.1 " + WebdavStatus.SC_LOCKED + " " + WebdavStatus.getStatusText(WebdavStatus.SC_LOCKED));
                    generatedXML.writeElement("D", "status", XMLWriter.CLOSING);
                    generatedXML.writeElement("D", "response", XMLWriter.CLOSING);
                }
                generatedXML.writeElement("D", "multistatus", XMLWriter.CLOSING);
                Writer writer = resp.getWriter();
                writer.write(generatedXML.toString());
                writer.close();
                return;
            }
            boolean addLock = true;
            // Checking if there is already a shared lock on this path
            locksList = collectionLocks.elements();
            while (locksList.hasMoreElements()) {
                LockInfo currentLock = locksList.nextElement();
                if (currentLock.path.equals(lock.path)) {
                    if (currentLock.isExclusive()) {
                        resp.sendError(WebdavStatus.SC_LOCKED);
                        return;
                    } else {
                        if (lock.isExclusive()) {
                            resp.sendError(WebdavStatus.SC_LOCKED);
                            return;
                        }
                    }
                    currentLock.tokens.addElement(lockToken);
                    lock = currentLock;
                    addLock = false;
                }
            }
            if (addLock) {
                lock.tokens.addElement(lockToken);
                collectionLocks.addElement(lock);
            }
        } else {
            // Locking a single resource
            // Retrieving an already existing lock on that resource
            LockInfo presentLock = resourceLocks.get(lock.path);
            if (presentLock != null) {
                if ((presentLock.isExclusive()) || (lock.isExclusive())) {
                    // If either lock is exclusive, the lock can't be
                    // granted
                    resp.sendError(WebdavStatus.SC_PRECONDITION_FAILED);
                    return;
                } else {
                    presentLock.tokens.addElement(lockToken);
                    lock = presentLock;
                }
            } else {
                lock.tokens.addElement(lockToken);
                resourceLocks.put(lock.path, lock);
                // Checking if a resource exists at this path
                if (!resource.exists()) {
                    // "Creating" a lock-null resource
                    int slash = lock.path.lastIndexOf('/');
                    String parentPath = lock.path.substring(0, slash);
                    Vector<String> lockNulls = lockNullResources.get(parentPath);
                    if (lockNulls == null) {
                        lockNulls = new Vector<>();
                        lockNullResources.put(parentPath, lockNulls);
                    }
                    lockNulls.addElement(lock.path);
                }
                // Add the Lock-Token header as by RFC 2518 8.10.1
                // - only do this for newly created locks
                resp.addHeader("Lock-Token", "<opaquelocktoken:" + lockToken + ">");
            }
        }
    }
    if (lockRequestType == LOCK_REFRESH) {
        String ifHeader = req.getHeader("If");
        if (ifHeader == null)
            ifHeader = "";
        // Checking resource locks
        LockInfo toRenew = resourceLocks.get(path);
        Enumeration<String> tokenList = null;
        if (toRenew != null) {
            // At least one of the tokens of the locks must have been given
            tokenList = toRenew.tokens.elements();
            while (tokenList.hasMoreElements()) {
                String token = tokenList.nextElement();
                if (ifHeader.indexOf(token) != -1) {
                    toRenew.expiresAt = lock.expiresAt;
                    lock = toRenew;
                }
            }
        }
        // Checking inheritable collection locks
        Enumeration<LockInfo> collectionLocksList = collectionLocks.elements();
        while (collectionLocksList.hasMoreElements()) {
            toRenew = collectionLocksList.nextElement();
            if (path.equals(toRenew.path)) {
                tokenList = toRenew.tokens.elements();
                while (tokenList.hasMoreElements()) {
                    String token = tokenList.nextElement();
                    if (ifHeader.indexOf(token) != -1) {
                        toRenew.expiresAt = lock.expiresAt;
                        lock = toRenew;
                    }
                }
            }
        }
    }
    // Set the status, then generate the XML response containing
    // the lock information
    XMLWriter generatedXML = new XMLWriter();
    generatedXML.writeXMLHeader();
    generatedXML.writeElement("D", DEFAULT_NAMESPACE, "prop", XMLWriter.OPENING);
    generatedXML.writeElement("D", "lockdiscovery", XMLWriter.OPENING);
    lock.toXML(generatedXML);
    generatedXML.writeElement("D", "lockdiscovery", XMLWriter.CLOSING);
    generatedXML.writeElement("D", "prop", XMLWriter.CLOSING);
    resp.setStatus(WebdavStatus.SC_OK);
    resp.setContentType("text/xml; charset=UTF-8");
    Writer writer = resp.getWriter();
    writer.write(generatedXML.toString());
    writer.close();
}

Example 13 with SAXException

use of org.xml.sax.SAXException in project tomcat by apache.

the class ErrorDispatcher method dispatch.

//*********************************************************************
// Private utility methods
/**
     * Dispatches the given JSP parse error to the configured error handler.
     *
     * The given error code is localized. If it is not found in the
     * resource bundle for localized error messages, it is used as the error
     * message.
     *
     * @param where Error location
     * @param errCode Error code
     * @param args Arguments for parametric replacement
     * @param e Parsing exception
     * @throws JasperException An error occurred
     */
private void dispatch(Mark where, String errCode, Object[] args, Exception e) throws JasperException {
    String file = null;
    String errMsg = null;
    int line = -1;
    int column = -1;
    boolean hasLocation = false;
    // Localize
    if (errCode != null) {
        errMsg = Localizer.getMessage(errCode, args);
    } else if (e != null) {
        // give a hint about what's wrong
        errMsg = e.getMessage();
    }
    // Get error location
    if (where != null) {
        if (jspcMode) {
            // Get the full URL of the resource that caused the error
            try {
                file = where.getURL().toString();
            } catch (MalformedURLException me) {
                // Fallback to using context-relative path
                file = where.getFile();
            }
        } else {
            // Get the context-relative resource path, so as to not
            // disclose any local filesystem details
            file = where.getFile();
        }
        line = where.getLineNumber();
        column = where.getColumnNumber();
        hasLocation = true;
    }
    // Get nested exception
    Exception nestedEx = e;
    if ((e instanceof SAXException) && (((SAXException) e).getException() != null)) {
        nestedEx = ((SAXException) e).getException();
    }
    if (hasLocation) {
        errHandler.jspError(file, line, column, errMsg, nestedEx);
    } else {
        errHandler.jspError(errMsg, nestedEx);
    }
}

Example 14 with SAXException

use of org.xml.sax.SAXException in project tomcat by apache.

the class JspDocumentParser method parseCustomAction.

/*
     * Checks if the XML element with the given tag name is a custom action,
     * and returns the corresponding Node object.
     */
private Node parseCustomAction(String qName, String localName, String uri, Attributes nonTaglibAttrs, Attributes nonTaglibXmlnsAttrs, Attributes taglibAttrs, Mark start, Node parent) throws SAXException {
    // Check if this is a user-defined (custom) tag
    TagLibraryInfo tagLibInfo = pageInfo.getTaglib(uri);
    if (tagLibInfo == null) {
        return null;
    }
    TagInfo tagInfo = tagLibInfo.getTag(localName);
    TagFileInfo tagFileInfo = tagLibInfo.getTagFile(localName);
    if (tagInfo == null && tagFileInfo == null) {
        throw new SAXParseException(Localizer.getMessage("jsp.error.xml.bad_tag", localName, uri), locator);
    }
    Class<?> tagHandlerClass = null;
    if (tagInfo != null) {
        String handlerClassName = tagInfo.getTagClassName();
        try {
            tagHandlerClass = ctxt.getClassLoader().loadClass(handlerClassName);
        } catch (Exception e) {
            throw new SAXParseException(Localizer.getMessage("jsp.error.loadclass.taghandler", handlerClassName, qName), locator, e);
        }
    }
    String prefix = getPrefix(qName);
    Node.CustomTag ret = null;
    if (tagInfo != null) {
        ret = new Node.CustomTag(qName, prefix, localName, uri, nonTaglibAttrs, nonTaglibXmlnsAttrs, taglibAttrs, start, parent, tagInfo, tagHandlerClass);
    } else {
        ret = new Node.CustomTag(qName, prefix, localName, uri, nonTaglibAttrs, nonTaglibXmlnsAttrs, taglibAttrs, start, parent, tagFileInfo);
    }
    return ret;
}

Example 15 with SAXException

use of org.xml.sax.SAXException in project tomcat by apache.

the class TagPluginManager method init.

private void init(ErrorDispatcher err) throws JasperException {
    if (initialized)
        return;
    String blockExternalString = ctxt.getInitParameter(Constants.XML_BLOCK_EXTERNAL_INIT_PARAM);
    boolean blockExternal;
    if (blockExternalString == null) {
        blockExternal = true;
    } else {
        blockExternal = Boolean.parseBoolean(blockExternalString);
    }
    TagPluginParser parser;
    ClassLoader original;
    if (Constants.IS_SECURITY_ENABLED) {
        PrivilegedGetTccl pa = new PrivilegedGetTccl();
        original = AccessController.doPrivileged(pa);
    } else {
        original = Thread.currentThread().getContextClassLoader();
    }
    try {
        if (Constants.IS_SECURITY_ENABLED) {
            PrivilegedSetTccl pa = new PrivilegedSetTccl(TagPluginManager.class.getClassLoader());
            AccessController.doPrivileged(pa);
        } else {
            Thread.currentThread().setContextClassLoader(TagPluginManager.class.getClassLoader());
        }
        parser = new TagPluginParser(ctxt, blockExternal);
        Enumeration<URL> urls = ctxt.getClassLoader().getResources(META_INF_JASPER_TAG_PLUGINS_XML);
        while (urls.hasMoreElements()) {
            URL url = urls.nextElement();
            parser.parse(url);
        }
        URL url = ctxt.getResource(TAG_PLUGINS_XML);
        if (url != null) {
            parser.parse(url);
        }
    } catch (IOException | SAXException e) {
        throw new JasperException(e);
    } finally {
        if (Constants.IS_SECURITY_ENABLED) {
            PrivilegedSetTccl pa = new PrivilegedSetTccl(original);
            AccessController.doPrivileged(pa);
        } else {
            Thread.currentThread().setContextClassLoader(original);
        }
    }
    Map<String, String> plugins = parser.getPlugins();
    tagPlugins = new HashMap<>(plugins.size());
    for (Map.Entry<String, String> entry : plugins.entrySet()) {
        try {
            String tagClass = entry.getKey();
            String pluginName = entry.getValue();
            Class<?> pluginClass = ctxt.getClassLoader().loadClass(pluginName);
            TagPlugin plugin = (TagPlugin) pluginClass.newInstance();
            tagPlugins.put(tagClass, plugin);
        } catch (Exception e) {
            err.jspError(e);
        }
    }
    initialized = true;
}