flewkey/cuberite-2a
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HTTP connections aren't kept alive unless explicitly enabled.

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Only the client can decide that the connection can be kept alive, we must close the socket if the client doesn't indicate keepalive support.
This will provide a fix for #390 when #560 is fixed; until then the issue remains, just it's no longer HTTPServer's fault.
This commit is contained in:
madmaxoft 2014-01-18 20:20:56 +01:00
parent e68521deac
commit fab726282c
4 changed files with 58 additions and 37 deletions
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6
src/HTTPServer/HTTPConnection.cpp
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@ -205,6 +205,12 @@ void cHTTPConnection::DataReceived(const char * a_Data, int a_Size)
{
m_State = wcsRecvIdle;
m_HTTPServer.RequestFinished(*this, *m_CurrentRequest);
if (!m_CurrentRequest->DoesAllowKeepAlive())
{
m_State = wcsInvalid;
m_HTTPServer.CloseConnection(*this);
return;
}
delete m_CurrentRequest;
m_CurrentRequest = NULL;
}

31
src/HTTPServer/HTTPConnection.h
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@ -41,49 +41,52 @@ public:
cHTTPConnection(cHTTPServer & a_HTTPServer);
virtual ~cHTTPConnection();
/// Sends HTTP status code together with a_Reason (used for HTTP errors)
/** Sends HTTP status code together with a_Reason (used for HTTP errors) */
void SendStatusAndReason(int a_StatusCode, const AString & a_Reason);
/// Sends the "401 unauthorized" reply together with instructions on authorizing, using the specified realm
/** Sends the "401 unauthorized" reply together with instructions on authorizing, using the specified realm */
void SendNeedAuth(const AString & a_Realm);
/// Sends the headers contained in a_Response
/** Sends the headers contained in a_Response */
void Send(const cHTTPResponse & a_Response);
/// Sends the data as the response (may be called multiple times)
/** Sends the data as the response (may be called multiple times) */
void Send(const void * a_Data, int a_Size);
/// Sends the data as the response (may be called multiple times)
/** Sends the data as the response (may be called multiple times) */
void Send(const AString & a_Data) { Send(a_Data.data(), a_Data.size()); }
/// Indicates that the current response is finished, gets ready for receiving another request (HTTP 1.1 keepalive)
/** Indicates that the current response is finished, gets ready for receiving another request (HTTP 1.1 keepalive) */
void FinishResponse(void);
/// Resets the connection for a new request. Depending on the state, this will send an "InternalServerError" status or a "ResponseEnd"
/** Resets the internal connection state for a new request.
Depending on the state, this will send an "InternalServerError" status or a "ResponseEnd" */
void AwaitNextRequest(void);
/// Terminates the connection; finishes any request being currently processed
/** Terminates the connection; finishes any request being currently processed */
void Terminate(void);
protected:
typedef std::map<AString, AString> cNameValueMap;
/// The parent webserver that is to be notified of events on this connection
/** The parent webserver that is to be notified of events on this connection */
cHTTPServer & m_HTTPServer;
/// All the incoming data until the entire request header is parsed
/** All the incoming data until the entire request header is parsed */
AString m_IncomingHeaderData;
/// Status in which the request currently is
/** Status in which the request currently is */
eState m_State;
/// Data that is queued for sending, once the socket becomes writable
/** Data that is queued for sending, once the socket becomes writable */
AString m_OutgoingData;
/// The request being currently received (valid only between having parsed the headers and finishing receiving the body)
/** The request being currently received
Valid only between having parsed the headers and finishing receiving the body. */
cHTTPRequest * m_CurrentRequest;
/// Number of bytes that remain to read for the complete body of the message to be received. Valid only in wcsRecvBody
/** Number of bytes that remain to read for the complete body of the message to be received.
Valid only in wcsRecvBody */
int m_CurrentRequestBodyRemaining;

7
src/HTTPServer/HTTPMessage.cpp
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@ -72,7 +72,8 @@ cHTTPRequest::cHTTPRequest(void) :
m_EnvelopeParser(*this),
m_IsValid(true),
m_UserData(NULL),
m_HasAuth(false)
m_HasAuth(false),
m_AllowKeepAlive(false)
{
}
@ -236,6 +237,10 @@ void cHTTPRequest::OnHeaderLine(const AString & a_Key, const AString & a_Value)
m_HasAuth = true;
}
}
if ((a_Key == "Connection") && (NoCaseCompare(a_Value, "keep-alive") == 0))
{
m_AllowKeepAlive = true;
}
AddHeader(a_Key, a_Value);
}

51
src/HTTPServer/HTTPMessage.h
View File

@ -35,7 +35,7 @@ public:
// Force a virtual destructor in all descendants
virtual ~cHTTPMessage() {};
/// Adds a header into the internal map of headers. Recognizes special headers: Content-Type and Content-Length
/** Adds a header into the internal map of headers. Recognizes special headers: Content-Type and Content-Length */
void AddHeader(const AString & a_Key, const AString & a_Value);
void SetContentType (const AString & a_ContentType) { m_ContentType = a_ContentType; }
@ -51,10 +51,10 @@ protected:
cNameValueMap m_Headers;
/// Type of the content; parsed by AddHeader(), set directly by SetContentLength()
/** Type of the content; parsed by AddHeader(), set directly by SetContentLength() */
AString m_ContentType;
/// Length of the content that is to be received. -1 when the object is created, parsed by AddHeader() or set directly by SetContentLength()
/** Length of the content that is to be received. -1 when the object is created, parsed by AddHeader() or set directly by SetContentLength() */
int m_ContentLength;
} ;
@ -76,64 +76,71 @@ public:
*/
int ParseHeaders(const char * a_Data, int a_Size);
/// Returns true if the request did contain a Content-Length header
/** Returns true if the request did contain a Content-Length header */
bool HasReceivedContentLength(void) const { return (m_ContentLength >= 0); }
/// Returns the method used in the request
/** Returns the method used in the request */
const AString & GetMethod(void) const { return m_Method; }
/// Returns the URL used in the request
/** Returns the URL used in the request */
const AString & GetURL(void) const { return m_URL; }
/// Returns the URL used in the request, without any parameters
/** Returns the URL used in the request, without any parameters */
AString GetBareURL(void) const;
/// Sets the UserData pointer that is stored within this request. The request doesn't touch this data (doesn't delete it)!
/** Sets the UserData pointer that is stored within this request.
The request doesn't touch this data (doesn't delete it)! */
void SetUserData(void * a_UserData) { m_UserData = a_UserData; }
/// Retrieves the UserData pointer that has been stored within this request.
/** Retrieves the UserData pointer that has been stored within this request. */
void * GetUserData(void) const { return m_UserData; }
/// Returns true if more data is expected for the request headers
/** Returns true if more data is expected for the request headers */
bool IsInHeaders(void) const { return m_EnvelopeParser.IsInHeaders(); }
/// Returns true if the request did present auth data that was understood by the parser
/** Returns true if the request did present auth data that was understood by the parser */
bool HasAuth(void) const { return m_HasAuth; }
/// Returns the username that the request presented. Only valid if HasAuth() is true
/** Returns the username that the request presented. Only valid if HasAuth() is true */
const AString & GetAuthUsername(void) const { return m_AuthUsername; }
/// Returns the password that the request presented. Only valid if HasAuth() is true
/** Returns the password that the request presented. Only valid if HasAuth() is true */
const AString & GetAuthPassword(void) const { return m_AuthPassword; }
bool DoesAllowKeepAlive(void) const { return m_AllowKeepAlive; }
protected:
/// Parser for the envelope data
/** Parser for the envelope data */
cEnvelopeParser m_EnvelopeParser;
/// True if the data received so far is parsed successfully. When false, all further parsing is skipped
/** True if the data received so far is parsed successfully. When false, all further parsing is skipped */
bool m_IsValid;
/// Bufferred incoming data, while parsing for the request line
/** Bufferred incoming data, while parsing for the request line */
AString m_IncomingHeaderData;
/// Method of the request (GET / PUT / POST / ...)
/** Method of the request (GET / PUT / POST / ...) */
AString m_Method;
/// Full URL of the request
/** Full URL of the request */
AString m_URL;
/// Data that the HTTPServer callbacks are allowed to store.
/** Data that the HTTPServer callbacks are allowed to store. */
void * m_UserData;
/// Set to true if the request contains auth data that was understood by the parser
/** Set to true if the request contains auth data that was understood by the parser */
bool m_HasAuth;
/// The username used for auth
/** The username used for auth */
AString m_AuthUsername;
/// The password used for auth
/** The password used for auth */
AString m_AuthPassword;
/** Set to true if the request indicated that it supports keepalives.
If false, the server will close the connection once the request is finished */
bool m_AllowKeepAlive;
/** Parses the incoming data for the first line (RequestLine)
Returns the number of bytes consumed, or -1 for an error