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use some shared char arrays on string split

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This commit is contained in:
UbitUmarov
2022-10-19 01:38:25 +01:00
parent 11005b24e9
commit fddb3761a0
24 changed files with 105 additions and 101 deletions
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107
OpenSim/Framework/Servers/HttpServer/OSHttpServer/HttpRequestParser.cs
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@@ -11,11 +11,11 @@ namespace OSHttpServer.Parser
public class HttpRequestParser : IHttpRequestParser
{
private ILogWriter m_log;
private readonly HeaderEventArgs m_headerArgs = new HeaderEventArgs();
private readonly BodyEventArgs m_bodyEventArgs = new BodyEventArgs();
private readonly RequestLineEventArgs m_requestLineArgs = new RequestLineEventArgs();
private osUTF8Slice m_curHeaderName = new osUTF8Slice();
private osUTF8Slice m_curHeaderValue = new osUTF8Slice();
private readonly HeaderEventArgs m_headerArgs = new();
private readonly BodyEventArgs m_bodyEventArgs = new();
private readonly RequestLineEventArgs m_requestLineArgs = new();
private osUTF8Slice m_curHeaderName = new();
private osUTF8Slice m_curHeaderValue = new();
private int m_bodyBytesLeft;
/// <summary>
@@ -68,7 +68,7 @@ namespace OSHttpServer.Parser
if (m_bodyBytesLeft == 0)
{
// got a complete request.
m_log.Write(this, LogPrio.Trace, "Request parsed successfully.");
m_log.Write(this, LogPrio.Trace, "Request parsed successfully");
OnRequestCompleted();
Clear();
}
@@ -108,41 +108,42 @@ namespace OSHttpServer.Parser
//todo: In the interest of robustness, servers SHOULD ignore any empty line(s) received where a Request-Line is expected.
// In other words, if the server is reading the protocol stream at the beginning of a message and receives a CRLF first, it should ignore the CRLF.
//
m_log.Write(this, LogPrio.Debug, "Got request: " + value);
m_log.Write(this, LogPrio.Debug, $"Got request: {value}");
//Request-Line = Method SP Request-URI SP HTTP-Version CRLF
int pos = value.IndexOf(' ');
if (pos == -1 || pos + 1 >= value.Length)
int oldPos = pos + 1;
if (pos == -1 || oldPos >= value.Length)
{
m_log.Write(this, LogPrio.Warning, "Invalid request line, missing Method. Line: " + value);
throw new BadRequestException("Invalid request line, missing Method. Line: " + value);
m_log.Write(this, LogPrio.Warning, $"Invalid request line, missing Method. Line: {value}");
throw new BadRequestException($"Invalid request line, missing Method. Line: {value}");
}
string method = value.Substring(0, pos).ToUpper();
int oldPos = pos + 1;
string method = value[..pos].ToUpper();
pos = value.IndexOf(' ', oldPos);
if (pos == -1)
{
m_log.Write(this, LogPrio.Warning, "Invalid request line, missing URI. Line: " + value);
throw new BadRequestException("Invalid request line, missing URI. Line: " + value);
}
string path = value.Substring(oldPos, pos - oldPos);
string path = value[oldPos..pos];
if (path.Length > 4196)
throw new BadRequestException("Too long URI.");
if (path == "*")
throw new BadRequestException("Not supported URI.");
if (pos + 1 >= value.Length)
oldPos = pos + 1;
if (oldPos >= value.Length)
{
m_log.Write(this, LogPrio.Warning, "Invalid request line, missing HTTP-Version. Line: " + value);
throw new BadRequestException("Invalid request line, missing HTTP-Version. Line: " + value);
m_log.Write(this, LogPrio.Warning, $"Invalid request line, missing HTTP-Version. Line: {value}");
throw new BadRequestException($"Invalid request line, missing HTTP-Version. Line: {value}");
}
string version = value.Substring(pos + 1);
if (version.Length < 4 || string.Compare(version.Substring(0, 4), "HTTP", true) != 0)
string version = value[oldPos..];
if (version.Length < 4 || string.Compare(version[..4], "HTTP", true) != 0)
{
m_log.Write(this, LogPrio.Warning, "Invalid HTTP version in request line. Line: " + value);
throw new BadRequestException("Invalid HTTP version in Request line. Line: " + value);
m_log.Write(this, LogPrio.Warning, $"Invalid HTTP version in request line. Line: {value}");
throw new BadRequestException($"Invalid HTTP version in Request line. Line: {value}");
}
if(RequestLineReceived != null)
@@ -269,7 +270,7 @@ namespace OSHttpServer.Parser
if (m_bodyBytesLeft == 0)
{
CurrentState = RequestParserState.FirstLine;
m_log.Write(this, LogPrio.Trace, "Request parsed successfully (no content).");
m_log.Write(this, LogPrio.Trace, "Request parsed successfully (no content)");
OnRequestCompleted();
Clear();
return currentPos;
@@ -288,9 +289,8 @@ namespace OSHttpServer.Parser
{
if (startPos == -1)
{
m_log.Write(this, LogPrio.Warning,
"Expected header name, got colon on line " + currentLine);
throw new BadRequestException("Expected header name, got colon on line " + currentLine);
m_log.Write(this, LogPrio.Warning, $"Expected header name, got colon on line {currentLine}");
throw new BadRequestException($"Expected header name, got colon on line {currentLine}");
}
m_curHeaderName = new osUTF8Slice(buffer, startPos, currentPos - startPos);
handledBytes = currentPos + 1;
@@ -302,15 +302,15 @@ namespace OSHttpServer.Parser
}
else if (!char.IsLetterOrDigit(ch) && ch != '-')
{
m_log.Write(this, LogPrio.Warning, "Invalid character in header name on line " + currentLine);
throw new BadRequestException("Invalid character in header name on line " + currentLine);
m_log.Write(this, LogPrio.Warning, $"Invalid character in header name on line {currentLine}");
throw new BadRequestException($"Invalid character in header name on line {currentLine}");
}
if (startPos == -1)
startPos = currentPos;
else if (currentPos - startPos > 200)
{
m_log.Write(this, LogPrio.Warning, "Invalid header name on line " + currentLine);
throw new BadRequestException("Invalid header name on line " + currentLine);
m_log.Write(this, LogPrio.Warning, $"Invalid header name on line {currentLine}");
throw new BadRequestException($"Invalid header name on line {currentLine}");
}
break;
case RequestParserState.AfterName:
@@ -332,21 +332,22 @@ namespace OSHttpServer.Parser
{
if (currentPos - startPos > 256)
{
m_log.Write(this, LogPrio.Warning, "header value too far" + currentLine);
throw new BadRequestException("header value too far" + currentLine);
m_log.Write(this, LogPrio.Warning, $"header value too far {currentLine}");
throw new BadRequestException($"header value too far {currentLine}");
}
}
else
{
int newLineSize = GetLineBreakSize(buffer, currentPos);
if (newLineSize > 0 && currentPos + newLineSize < endOfBufferPos &&
char.IsWhiteSpace((char)buffer[currentPos + newLineSize]))
int tsize = currentPos + newLineSize;
if (newLineSize > 0 && tsize < endOfBufferPos &&
char.IsWhiteSpace((char)buffer[tsize]))
{
if (currentPos - startPos > 256)
{
m_log.Write(this, LogPrio.Warning, "header value too" + currentLine);
throw new BadRequestException("header value too far" + currentLine);
}
m_log.Write(this, LogPrio.Warning, $"header value too far {currentLine}");
throw new BadRequestException($"header value too far {currentLine}");
}
++currentPos;
}
else
@@ -363,23 +364,23 @@ namespace OSHttpServer.Parser
if (ch == '\r' || ch == '\n')
{
if (m_curHeaderName.Length == 0)
throw new BadRequestException("Missing header on line " + currentLine);
throw new BadRequestException($"Missing header on line {currentLine}");
if (currentPos - startPos > 8190)
{
m_log.Write(this, LogPrio.Warning, "Too large header value on line " + currentLine);
throw new BadRequestException("Too large header value on line " + currentLine);
m_log.Write(this, LogPrio.Warning, $"Too large header value on line {currentLine}");
throw new BadRequestException($"Too large header value on line {currentLine}");
}
// Header fields can be extended over multiple lines by preceding each extra line with at
// least one SP or HT.
int newLineSize = GetLineBreakSize(buffer, currentPos);
if (endOfBufferPos > currentPos + newLineSize
&& (buffer[currentPos + newLineSize] == ' ' || buffer[currentPos + newLineSize] == '\t'))
int tnext = currentPos + newLineSize;
if (endOfBufferPos > tnext && (buffer[tnext] == ' ' || buffer[tnext] == '\t'))
{
if (startPos != -1)
{
osUTF8Slice osUTF8SliceTmp = new osUTF8Slice(buffer, startPos, currentPos - startPos);
osUTF8Slice osUTF8SliceTmp = new(buffer, startPos, currentPos - startPos);
if (m_curHeaderValue.Length == 0)
m_curHeaderValue = osUTF8SliceTmp.Clone();
else
@@ -393,13 +394,13 @@ namespace OSHttpServer.Parser
}
else
{
osUTF8Slice osUTF8SliceTmp = new osUTF8Slice(buffer, startPos, currentPos - startPos);
osUTF8Slice osUTF8SliceTmp = new(buffer, startPos, currentPos - startPos);
if (m_curHeaderValue.Length == 0)
m_curHeaderValue = osUTF8SliceTmp.Clone();
else
m_curHeaderValue.Append(osUTF8SliceTmp);
m_log.Write(this, LogPrio.Trace, "Header [" + m_curHeaderName + ": " + m_curHeaderValue + "]");
m_log.Write(this, LogPrio.Trace, $"Header [{m_curHeaderName}:{m_curHeaderValue}]");
OnHeader();
@@ -432,23 +433,23 @@ namespace OSHttpServer.Parser
return handledBytes;
}
int GetLineBreakSize(byte[] buffer, int offset)
static int GetLineBreakSize(in byte[] buffer, int offset)
{
if (buffer[offset] == '\r')
byte c = buffer[offset];
if (c == '\r')
{
if (buffer.Length > offset + 1 && buffer[offset + 1] == '\n')
++offset;
if (buffer.Length > offset && buffer[offset] == '\n')
return 2;
else
throw new BadRequestException("Got invalid linefeed.");
}
else if (buffer[offset] == '\n')
else if (c == '\n')
{
if (buffer.Length == offset + 1)
++offset;
if (buffer.Length == offset)
return 1; // linux line feed
if (buffer[offset + 1] != '\r')
return 1; // linux line feed
else
return 2; // win line feed
return buffer[offset] == '\r' ? 2 : 1;
}
else
return 0;