/// <summary>
/// Writes characters from the specified char array followed by a line
/// delimiter to this session buffer.
/// </summary>
/// <remarks>
/// Writes characters from the specified char array followed by a line
/// delimiter to this session buffer.
/// <p>
/// This method uses CR-LF as a line delimiter.
/// </remarks>
/// <param name="charbuffer">the buffer containing chars of the line.</param>
/// <exception>
/// IOException
/// if an I/O error occurs.
/// </exception>
/// <exception cref="System.IO.IOException"></exception>
public virtual void WriteLine(CharArrayBuffer charbuffer)
{
if (charbuffer == null)
{
return;
}
if (this.encoder == null)
{
int off = 0;
int remaining = charbuffer.Length();
while (remaining > 0)
{
int chunk = this.buffer.Capacity() - this.buffer.Length();
chunk = Math.Min(chunk, remaining);
if (chunk > 0)
{
this.buffer.Append(charbuffer, off, chunk);
}
if (this.buffer.IsFull())
{
FlushBuffer();
}
off += chunk;
remaining -= chunk;
}
}
else
{
CharBuffer cbuf = CharBuffer.Wrap(charbuffer.Buffer(), 0, charbuffer.Length());
WriteEncoded(cbuf);
}
Write(Crlf);
}
// non-javadoc, see interface LineParser
public virtual bool HasProtocolVersion(CharArrayBuffer buffer, ParserCursor cursor
)
{
Args.NotNull(buffer, "Char array buffer");
Args.NotNull(cursor, "Parser cursor");
int index = cursor.GetPos();
string protoname = this.protocol.GetProtocol();
int protolength = protoname.Length;
if (buffer.Length() < protolength + 4)
{
return(false);
}
// not long enough for "HTTP/1.1"
if (index < 0)
{
// end of line, no tolerance for trailing whitespace
// this works only for single-digit major and minor version
index = buffer.Length() - 4 - protolength;
}
else
{
if (index == 0)
{
// beginning of line, tolerate leading whitespace
while ((index < buffer.Length()) && HTTP.IsWhitespace(buffer.CharAt(index)))
{
index++;
}
}
}
// else within line, don't tolerate whitespace
if (index + protolength + 4 > buffer.Length())
{
return(false);
}
// just check protocol name and slash, no need to analyse the version
bool ok = true;
for (int j = 0; ok && (j < protolength); j++)
{
ok = (buffer.CharAt(index + j) == protoname[j]);
}
if (ok)
{
ok = (buffer.CharAt(index + protolength) == '/');
}
return(ok);
}
/// <summary>
/// Returns a list of
/// <see cref="Apache.Http.NameValuePair">NameValuePairs</see>
/// as parsed from the given string using the given character
/// encoding.
/// </summary>
/// <param name="s">text to parse.</param>
/// <param name="charset">Encoding to use when decoding the parameters.</param>
/// <param name="parameterSeparator">
/// The characters used to separate parameters, by convention,
/// <code>'&'</code>
/// and
/// <code>';'</code>
/// .
/// </param>
/// <returns>
/// a list of
/// <see cref="Apache.Http.NameValuePair">Apache.Http.NameValuePair</see>
/// as built from the URI's query portion.
/// </returns>
/// <since>4.3</since>
public static IList <NameValuePair> Parse(string s, Encoding charset, params char[]
parameterSeparator)
{
if (s == null)
{
return(Sharpen.Collections.EmptyList());
}
BasicHeaderValueParser parser = BasicHeaderValueParser.Instance;
CharArrayBuffer buffer = new CharArrayBuffer(s.Length);
buffer.Append(s);
ParserCursor cursor = new ParserCursor(0, buffer.Length());
IList <NameValuePair> list = new AList <NameValuePair>();
while (!cursor.AtEnd())
{
NameValuePair nvp = parser.ParseNameValuePair(buffer, cursor, parameterSeparator);
if (nvp.GetName().Length > 0)
{
list.AddItem(new BasicNameValuePair(DecodeFormFields(nvp.GetName(), charset), DecodeFormFields
(nvp.GetValue(), charset)));
}
}
return(list);
}
/// <summary>Parses the Set-Cookie value into an array of <tt>Cookie</tt>s.</summary>
/// <remarks>
/// Parses the Set-Cookie value into an array of <tt>Cookie</tt>s.
/// <p>Syntax of the Set-Cookie HTTP Response Header:</p>
/// <p>This is the format a CGI script would use to add to
/// the HTTP headers a new piece of data which is to be stored by
/// the client for later retrieval.</p>
/// <PRE>
/// Set-Cookie: NAME=VALUE; expires=DATE; path=PATH; domain=DOMAIN_NAME; secure
/// </PRE>
/// <p>Please note that the Netscape draft specification does not fully conform to the HTTP
/// header format. Comma character if present in <code>Set-Cookie</code> will not be treated
/// as a header element separator</p>
/// </remarks>
/// <seealso><a href="http://web.archive.org/web/20020803110822/http://wp.netscape.com/newsref/std/cookie_spec.html">
/// * The Cookie Spec.</a></seealso>
/// <param name="header">the <tt>Set-Cookie</tt> received from the server</param>
/// <returns>an array of <tt>Cookie</tt>s parsed from the Set-Cookie value</returns>
/// <exception cref="Apache.Http.Cookie.MalformedCookieException">if an exception occurs during parsing
/// </exception>
public override IList <Apache.Http.Cookie.Cookie> Parse(Header header, CookieOrigin
origin)
{
Args.NotNull(header, "Header");
Args.NotNull(origin, "Cookie origin");
if (!Sharpen.Runtime.EqualsIgnoreCase(header.GetName(), SM.SetCookie))
{
throw new MalformedCookieException("Unrecognized cookie header '" + header.ToString
() + "'");
}
NetscapeDraftHeaderParser parser = NetscapeDraftHeaderParser.Default;
CharArrayBuffer buffer;
ParserCursor cursor;
if (header is FormattedHeader)
{
buffer = ((FormattedHeader)header).GetBuffer();
cursor = new ParserCursor(((FormattedHeader)header).GetValuePos(), buffer.Length(
));
}
else
{
string s = header.GetValue();
if (s == null)
{
throw new MalformedCookieException("Header value is null");
}
buffer = new CharArrayBuffer(s.Length);
buffer.Append(s);
cursor = new ParserCursor(0, buffer.Length());
}
return(Parse(new HeaderElement[] { parser.ParseHeader(buffer, cursor) }, origin));
}
/// <exception cref="Apache.Http.Cookie.MalformedCookieException"></exception>
public virtual IList <Apache.Http.Cookie.Cookie> Parse(Header header, CookieOrigin
origin)
{
Args.NotNull(header, "Header");
Args.NotNull(origin, "Cookie origin");
HeaderElement[] helems = header.GetElements();
bool versioned = false;
bool netscape = false;
foreach (HeaderElement helem in helems)
{
if (helem.GetParameterByName("version") != null)
{
versioned = true;
}
if (helem.GetParameterByName("expires") != null)
{
netscape = true;
}
}
if (netscape || !versioned)
{
// Need to parse the header again, because Netscape style cookies do not correctly
// support multiple header elements (comma cannot be treated as an element separator)
NetscapeDraftHeaderParser parser = NetscapeDraftHeaderParser.Default;
CharArrayBuffer buffer;
ParserCursor cursor;
if (header is FormattedHeader)
{
buffer = ((FormattedHeader)header).GetBuffer();
cursor = new ParserCursor(((FormattedHeader)header).GetValuePos(), buffer.Length(
));
}
else
{
string s = header.GetValue();
if (s == null)
{
throw new MalformedCookieException("Header value is null");
}
buffer = new CharArrayBuffer(s.Length);
buffer.Append(s);
cursor = new ParserCursor(0, buffer.Length());
}
helems = new HeaderElement[] { parser.ParseHeader(buffer, cursor) };
return(GetCompat().Parse(helems, origin));
}
else
{
if (SM.SetCookie2.Equals(header.GetName()))
{
return(GetStrict().Parse(helems, origin));
}
else
{
return(GetObsoleteStrict().Parse(helems, origin));
}
}
}
/// <exception cref="Apache.Http.Auth.MalformedChallengeException"></exception>
protected internal override void ParseChallenge(CharArrayBuffer buffer, int pos,
int len)
{
HeaderValueParser parser = BasicHeaderValueParser.Instance;
ParserCursor cursor = new ParserCursor(pos, buffer.Length());
HeaderElement[] elements = parser.ParseElements(buffer, cursor);
if (elements.Length == 0)
{
throw new MalformedChallengeException("Authentication challenge is empty");
}
[email protected]();
foreach (HeaderElement element in elements)
{
[email protected](element.GetName(), element.GetValue());
}
}
/// <summary>
/// Parses HTTP headers from the data receiver stream according to the generic
/// format as given in Section 3.1 of RFC 822, RFC-2616 Section 4 and 19.3.
/// </summary>
/// <remarks>
/// Parses HTTP headers from the data receiver stream according to the generic
/// format as given in Section 3.1 of RFC 822, RFC-2616 Section 4 and 19.3.
/// </remarks>
/// <param name="inbuffer">Session input buffer</param>
/// <param name="maxHeaderCount">
/// maximum number of headers allowed. If the number
/// of headers received from the data stream exceeds maxCount value, an
/// IOException will be thrown. Setting this parameter to a negative value
/// or zero will disable the check.
/// </param>
/// <param name="maxLineLen">
/// maximum number of characters for a header line,
/// including the continuation lines. Setting this parameter to a negative
/// value or zero will disable the check.
/// </param>
/// <param name="parser">line parser to use.</param>
/// <param name="headerLines">
/// List of header lines. This list will be used to store
/// intermediate results. This makes it possible to resume parsing of
/// headers in case of a
/// <see cref="System.Threading.ThreadInterruptedException">System.Threading.ThreadInterruptedException
/// </see>
/// .
/// </param>
/// <returns>array of HTTP headers</returns>
/// <exception cref="System.IO.IOException">in case of an I/O error</exception>
/// <exception cref="Org.Apache.Http.HttpException">in case of HTTP protocol violation
/// </exception>
/// <since>4.1</since>
public static Header[] ParseHeaders(SessionInputBuffer inbuffer, int maxHeaderCount
, int maxLineLen, LineParser parser, IList <CharArrayBuffer> headerLines)
{
Args.NotNull(inbuffer, "Session input buffer");
Args.NotNull(parser, "Line parser");
Args.NotNull(headerLines, "Header line list");
CharArrayBuffer current = null;
CharArrayBuffer previous = null;
for (; ;)
{
if (current == null)
{
current = new CharArrayBuffer(64);
}
else
{
current.Clear();
}
int l = inbuffer.ReadLine(current);
if (l == -1 || current.Length() < 1)
{
break;
}
// Parse the header name and value
// Check for folded headers first
// Detect LWS-char see HTTP/1.0 or HTTP/1.1 Section 2.2
// discussion on folded headers
if ((current.CharAt(0) == ' ' || current.CharAt(0) == '\t') && previous != null)
{
// we have continuation folded header
// so append value
int i = 0;
while (i < current.Length())
{
char ch = current.CharAt(i);
if (ch != ' ' && ch != '\t')
{
break;
}
i++;
}
if (maxLineLen > 0 && previous.Length() + 1 + current.Length() - i > maxLineLen)
{
throw new MessageConstraintException("Maximum line length limit exceeded");
}
previous.Append(' ');
previous.Append(current, i, current.Length() - i);
}
else
{
headerLines.AddItem(current);
previous = current;
current = null;
}
if (maxHeaderCount > 0 && headerLines.Count >= maxHeaderCount)
{
throw new MessageConstraintException("Maximum header count exceeded");
}
}
Header[] headers = new Header[headerLines.Count];
for (int i_1 = 0; i_1 < headerLines.Count; i_1++)
{
CharArrayBuffer buffer = headerLines[i_1];
try
{
headers[i_1] = parser.ParseHeader(buffer);
}
catch (ParseException ex)
{
throw new ProtocolException(ex.Message);
}
}
return(headers);
}
