org.apache.tomcat.util.http.parser.HttpParser Java Examples

public Http11InputBuffer(Request request, int headerBufferSize,
        boolean rejectIllegalHeaderName, HttpParser httpParser) {

    this.request = request;
    headers = request.getMimeHeaders();

    this.headerBufferSize = headerBufferSize;
    this.rejectIllegalHeaderName = rejectIllegalHeaderName;
    this.httpParser = httpParser;

    filterLibrary = new InputFilter[0];
    activeFilters = new InputFilter[0];
    lastActiveFilter = -1;

    parsingHeader = true;
    parsingRequestLine = true;
    parsingRequestLinePhase = 0;
    parsingRequestLineEol = false;
    parsingRequestLineStart = 0;
    parsingRequestLineQPos = -1;
    headerParsePos = HeaderParsePosition.HEADER_START;
    swallowInput = true;

    inputStreamInputBuffer = new SocketInputBuffer();
}
 

@Override
public String getSubmittedFileName() {
    String fileName = null;
    String cd = getHeader("Content-Disposition");
    if (cd != null) {
        String cdl = cd.toLowerCase(Locale.ENGLISH);
        if (cdl.startsWith("form-data") || cdl.startsWith("attachment")) {
            ParameterParser paramParser = new ParameterParser();
            paramParser.setLowerCaseNames(true);
            // Parameter parser can handle null input
            Map<String,String> params = paramParser.parse(cd, ';');
            if (params.containsKey("filename")) {
                fileName = params.get("filename");
                // The parser will remove surrounding '"' but will not
                // unquote any \x sequences.
                if (fileName != null) {
                    // RFC 6266. This is either a token or a quoted-string
                    if (fileName.indexOf('\\') > -1) {
                        // This is a quoted-string
                        fileName = HttpParser.unquote(fileName.trim());
                    } else {
                        // This is a token
                        fileName = fileName.trim();
                    }
                } else {
                    // Even if there is no value, the parameter is present,
                    // so we return an empty file name rather than no file
                    // name.
                    fileName = "";
                }
            }
        }
    }
    return fileName;
}
 

public boolean parse(Request request, String authorization) {
    // Validate the authorization credentials format
    if (authorization == null) {
        return false;
    }

    Map<String,String> directives;
    try {
        directives = HttpParser.parseAuthorizationDigest(
                new StringReader(authorization));
    } catch (IOException e) {
        return false;
    }

    if (directives == null) {
        return false;
    }

    method = request.getMethod();
    userName = directives.get("username");
    realmName = directives.get("realm");
    nonce = directives.get("nonce");
    nc = directives.get("nc");
    cnonce = directives.get("cnonce");
    qop = directives.get("qop");
    uri = directives.get("uri");
    response = directives.get("response");
    opaqueReceived = directives.get("opaque");

    return true;
}
 

/**
 * Sets the content type.
 *
 * This method must preserve any response charset that may already have 
 * been set via a call to response.setContentType(), response.setLocale(),
 * or response.setCharacterEncoding().
 *
 * @param type the content type
 */
public void setContentType(String type) {

    if (type == null) {
        this.contentType = null;
        return;
    }

    MediaType m = null;
    try {
         m = HttpParser.parseMediaType(new StringReader(type));
    } catch (IOException e) {
        // Ignore - null test below handles this
    }
    if (m == null) {
        // Invalid - Assume no charset and just pass through whatever
        // the user provided.
        this.contentType = type;
        return;
    }

    this.contentType = m.toStringNoCharset();

    String charsetValue = m.getCharset();

    if (charsetValue != null) {
        charsetValue = charsetValue.trim();
        if (charsetValue.length() > 0) {
            charsetSet = true;
            this.characterEncoding = charsetValue;
        }
    }
}
 

public boolean parse(Request request, String authorization) {
    // Validate the authorization credentials format
    if (authorization == null) {
        return false;
    }

    Map<String,String> directives;
    try {
        directives = HttpParser.parseAuthorizationDigest(
                new StringReader(authorization));
    } catch (IOException e) {
        return false;
    }

    if (directives == null) {
        return false;
    }

    method = request.getMethod();
    userName = directives.get("username");
    realmName = directives.get("realm");
    nonce = directives.get("nonce");
    nc = directives.get("nc");
    cnonce = directives.get("cnonce");
    qop = directives.get("qop");
    uri = directives.get("uri");
    response = directives.get("response");
    opaqueReceived = directives.get("opaque");

    return true;
}
 

/**
 * Adapted from FileUploadBase.getFileName(). Method name chosen to be
 * consistent with Servlet 3.1.
 */
public String getSubmittedFileName() {
    String fileName = null;
    String cd = getHeader("Content-Disposition");
    if (cd != null) {
        String cdl = cd.toLowerCase(Locale.ENGLISH);
        if (cdl.startsWith("form-data") || cdl.startsWith("attachment")) {
            ParameterParser paramParser = new ParameterParser();
            paramParser.setLowerCaseNames(true);
            // Parameter parser can handle null input
            Map<String,String> params = paramParser.parse(cd, ';');
            if (params.containsKey("filename")) {
                fileName = params.get("filename");
                // The parser will remove surrounding '"' but will not
                // unquote any \x sequences.
                if (fileName != null) {
                    // RFC 6266. This is either a token or a quoted-string
                    if (fileName.indexOf('\\') > -1) {
                        // This is a quoted-string
                        fileName = HttpParser.unquote(fileName.trim());
                    } else {
                        // This is a token
                        fileName = fileName.trim();
                    }
                } else {
                    // Even if there is no value, the parameter is present,
                    // so we return an empty file name rather than no file
                    // name.
                    fileName = "";
                }
            }
        }
    }
    return fileName;
}
 

/**
 * Sets the content type.
 *
 * This method must preserve any response charset that may already have 
 * been set via a call to response.setContentType(), response.setLocale(),
 * or response.setCharacterEncoding().
 *
 * @param type the content type
 */
public void setContentType(String type) {

    if (type == null) {
        this.contentType = null;
        return;
    }

    MediaType m = null;
    try {
         m = HttpParser.parseMediaType(new StringReader(type));
    } catch (IOException e) {
        // Ignore - null test below handles this
    }
    if (m == null) {
        // Invalid - Assume no charset and just pass through whatever
        // the user provided.
        this.contentType = type;
        return;
    }

    this.contentType = m.toStringNoCharset();

    String charsetValue = m.getCharset();

    if (charsetValue != null) {
        charsetValue = charsetValue.trim();
        if (charsetValue.length() > 0) {
            charsetSet = true;
            this.characterEncoding = charsetValue;
        }
    }
}
 

/**
 * Http11 NIO处理器.
 * 拿到连接.传递连接.处理连接.处理的关键地方.
 * 1.inputBuffer and  outputBuffer绑定在了NioSocketWrapper.
 * 2. Http11Processor持有NioSocketWrapper对象.
 * 3. NioSocketWrapper去读写数据填充到对应的两个Buffer内.
 * @param protocol
 * @param endpoint
 */
@SuppressWarnings("deprecation")
public Http11Processor(AbstractHttp11Protocol<?> protocol, AbstractEndpoint<?> endpoint) {
    super(endpoint);
    this.protocol = protocol;

    httpParser = new HttpParser(protocol.getRelaxedPathChars(),
            protocol.getRelaxedQueryChars());
    /**
     * Http11 InputBuffer  绑定到 {@link org.apache.coyote.Request}
     */
    inputBuffer = new Http11InputBuffer(request, protocol.getMaxHttpHeaderSize(),
            protocol.getRejectIllegalHeaderName(), httpParser);
    request.setInputBuffer(inputBuffer);
    /**
     * Http11 OutputBuffer  绑定到{@link org.apache.coyote.Response}
     */
    outputBuffer = new Http11OutputBuffer(response, protocol.getMaxHttpHeaderSize(),
            protocol.getSendReasonPhrase());
    response.setOutputBuffer(outputBuffer);

    // Create and add the identity filters.
    inputBuffer.addFilter(new IdentityInputFilter(protocol.getMaxSwallowSize()));
    outputBuffer.addFilter(new IdentityOutputFilter());

    // Create and add the chunked filters.
    inputBuffer.addFilter(new ChunkedInputFilter(protocol.getMaxTrailerSize(),
            protocol.getAllowedTrailerHeadersInternal(), protocol.getMaxExtensionSize(),
            protocol.getMaxSwallowSize()));
    outputBuffer.addFilter(new ChunkedOutputFilter());

    // Create and add the void filters.
    inputBuffer.addFilter(new VoidInputFilter());
    outputBuffer.addFilter(new VoidOutputFilter());

    // Create and add buffered input filter
    inputBuffer.addFilter(new BufferedInputFilter());

    // Create and add the gzip filters.
    //inputBuffer.addFilter(new GzipInputFilter());
    outputBuffer.addFilter(new GzipOutputFilter());

    pluggableFilterIndex = inputBuffer.getFilters().length;
}
 

private static boolean isHttp(ByteBuffer bb) {
    // Based on code in Http11InputBuffer
    // Note: The actual request is not important. This code only checks that
    //       the buffer contains a correctly formatted HTTP request line.
    //       The method, target and protocol are not validated.
    byte chr = 0;
    bb.position(0);

    // Skip blank lines
    do {
        if (!bb.hasRemaining()) {
            return false;
        }
        chr = bb.get();
    } while (chr == '\r' || chr == '\n');

    // Read the method
    do {
        if (!HttpParser.isToken(chr) || !bb.hasRemaining()) {
            return false;
        }
        chr = bb.get();
    } while (chr != ' ' && chr != '\t');

    // Whitespace between method and target
    while (chr == ' ' || chr == '\t') {
        if (!bb.hasRemaining()) {
            return false;
        }
        chr = bb.get();
    }

    // Read the target
    while (chr != ' ' && chr != '\t') {
        if (HttpParser.isNotRequestTarget(chr) || !bb.hasRemaining()) {
            return false;
        }
        chr = bb.get();
    }

    // Whitespace between target and protocol
    while (chr == ' ' || chr == '\t') {
        if (!bb.hasRemaining()) {
            return false;
        }
        chr = bb.get();
    }

    // Read protocol
    do {
        if (!HttpParser.isHttpProtocol(chr) || !bb.hasRemaining()) {
            return false;
        }
        chr = bb.get();

    } while (chr != '\r' && chr != '\n');

    return true;
}