122 lines
2.3 KiB
C++
122 lines
2.3 KiB
C++
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// SslHTTPConnection.cpp
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// Implements the cSslHTTPServerConnection class representing a HTTP connection made over a SSL link
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#include "Globals.h"
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#include "SslHTTPServerConnection.h"
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#include "HTTPServer.h"
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cSslHTTPServerConnection::cSslHTTPServerConnection(
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cHTTPServer & a_HTTPServer, const std::shared_ptr<const cSslConfig> & a_Config
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):
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Super(a_HTTPServer),
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m_Ssl(64000)
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{
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if (a_Config != nullptr)
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{
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m_Ssl.Initialize(a_Config);
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}
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else
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{
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m_Ssl.Initialize(false);
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}
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}
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cSslHTTPServerConnection::~cSslHTTPServerConnection()
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{
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m_Ssl.NotifyClose();
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}
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void cSslHTTPServerConnection::OnReceivedData(const char * a_Data, size_t a_Size)
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{
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// Process the received data:
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const char * Data = a_Data;
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size_t Size = a_Size;
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for (;;)
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{
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// Try to write as many bytes into Ssl's "incoming" buffer as possible:
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size_t BytesWritten = 0;
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if (Size > 0)
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{
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BytesWritten = m_Ssl.WriteIncoming(Data, Size);
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Data += BytesWritten;
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Size -= BytesWritten;
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}
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// Try to read as many bytes from SSL's decryption as possible:
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char Buffer[32000];
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int NumRead = m_Ssl.ReadPlain(Buffer, sizeof(Buffer));
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if (NumRead > 0)
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{
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Super::OnReceivedData(Buffer, static_cast<size_t>(NumRead));
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// The link may have closed while processing the data, bail out:
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return;
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}
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else if (NumRead == MBEDTLS_ERR_SSL_WANT_READ)
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{
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// SSL requires us to send data to peer first, do so by "sending" empty data:
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SendData(nullptr, 0);
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}
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// If both failed, bail out:
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if ((BytesWritten == 0) && (NumRead <= 0))
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{
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return;
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}
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}
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}
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void cSslHTTPServerConnection::SendData(const void * a_Data, size_t a_Size)
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{
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const char * OutgoingData = static_cast<const char *>(a_Data);
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size_t pos = 0;
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for (;;)
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{
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// Write as many bytes from our buffer to SSL's encryption as possible:
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int NumWritten = 0;
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if (pos < a_Size)
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{
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NumWritten = m_Ssl.WritePlain(OutgoingData + pos, a_Size - pos);
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if (NumWritten > 0)
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{
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pos += static_cast<size_t>(NumWritten);
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}
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}
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// Read as many bytes from SSL's "outgoing" buffer as possible:
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char Buffer[32000];
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size_t NumBytes = m_Ssl.ReadOutgoing(Buffer, sizeof(Buffer));
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if (NumBytes > 0)
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{
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m_Link->Send(Buffer, NumBytes);
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}
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// If both failed, bail out:
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if ((NumWritten <= 0) && (NumBytes == 0))
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{
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return;
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}
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}
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}
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