310 lines
6.9 KiB
C++
310 lines
6.9 KiB
C++
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// HTTPServer.cpp
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// Implements the cHTTPServer class representing a HTTP webserver that uses cListenThread and cSocketThreads for processing
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#include "Globals.h"
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#include "HTTPServer.h"
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#include "HTTPMessage.h"
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#include "HTTPConnection.h"
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#include "HTTPFormParser.h"
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#include "SslHTTPConnection.h"
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// Disable MSVC warnings:
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#if defined(_MSC_VER)
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#pragma warning(push)
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#pragma warning(disable:4355) // 'this' : used in base member initializer list
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#endif
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class cDebugCallbacks :
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public cHTTPServer::cCallbacks,
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protected cHTTPFormParser::cCallbacks
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{
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virtual void OnRequestBegun(cHTTPConnection & a_Connection, cHTTPRequest & a_Request) override
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{
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UNUSED(a_Connection);
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if (cHTTPFormParser::HasFormData(a_Request))
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{
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a_Request.SetUserData(new cHTTPFormParser(a_Request, *this));
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}
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}
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virtual void OnRequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request, const char * a_Data, size_t a_Size) override
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{
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UNUSED(a_Connection);
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cHTTPFormParser * FormParser = (cHTTPFormParser *)(a_Request.GetUserData());
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if (FormParser != nullptr)
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{
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FormParser->Parse(a_Data, a_Size);
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}
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}
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virtual void OnRequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request) override
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{
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cHTTPFormParser * FormParser = (cHTTPFormParser *)(a_Request.GetUserData());
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if (FormParser != nullptr)
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{
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if (FormParser->Finish())
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{
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cHTTPResponse Resp;
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Resp.SetContentType("text/html");
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a_Connection.Send(Resp);
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a_Connection.Send("<html><body><table border=1 cellspacing=0><tr><th>Name</th><th>Value</th></tr>\r\n");
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for (cHTTPFormParser::iterator itr = FormParser->begin(), end = FormParser->end(); itr != end; ++itr)
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{
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a_Connection.Send(Printf("<tr><td valign=\"top\"><pre>%s</pre></td><td valign=\"top\"><pre>%s</pre></td></tr>\r\n", itr->first.c_str(), itr->second.c_str()));
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} // for itr - FormParser[]
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a_Connection.Send("</table></body></html>");
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return;
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}
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// Parsing failed:
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cHTTPResponse Resp;
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Resp.SetContentType("text/plain");
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a_Connection.Send(Resp);
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a_Connection.Send("Form parsing failed");
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return;
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}
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// Test the auth failure and success:
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if (a_Request.GetURL() == "/auth")
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{
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if (!a_Request.HasAuth() || (a_Request.GetAuthUsername() != "a") || (a_Request.GetAuthPassword() != "b"))
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{
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a_Connection.SendNeedAuth("MCServer WebAdmin");
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return;
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}
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}
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cHTTPResponse Resp;
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Resp.SetContentType("text/plain");
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a_Connection.Send(Resp);
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a_Connection.Send("Hello, world");
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}
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virtual void OnFileStart(cHTTPFormParser & a_Parser, const AString & a_FileName) override
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{
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// TODO
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}
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virtual void OnFileData(cHTTPFormParser & a_Parser, const char * a_Data, size_t a_Size) override
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{
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// TODO
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}
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virtual void OnFileEnd(cHTTPFormParser & a_Parser) override
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{
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// TODO
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}
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};
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static cDebugCallbacks g_DebugCallbacks;
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////////////////////////////////////////////////////////////////////////////////
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// cHTTPServerListenCallbacks:
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class cHTTPServerListenCallbacks:
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public cNetwork::cListenCallbacks
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{
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public:
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cHTTPServerListenCallbacks(cHTTPServer & a_HTTPServer, UInt16 a_Port):
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m_HTTPServer(a_HTTPServer),
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m_Port(a_Port)
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{
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}
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protected:
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/** The HTTP server instance that we're attached to. */
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cHTTPServer & m_HTTPServer;
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/** The port for which this instance is responsible. */
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UInt16 m_Port;
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// cNetwork::cListenCallbacks overrides:
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virtual cTCPLink::cCallbacksPtr OnIncomingConnection(const AString & a_RemoteIPAddress, UInt16 a_RemotePort) override
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{
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return m_HTTPServer.OnIncomingConnection(a_RemoteIPAddress, a_RemotePort);
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}
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virtual void OnAccepted(cTCPLink & a_Link) override {}
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virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override
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{
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LOGWARNING("HTTP server error on port %d: %d (%s)", m_Port, a_ErrorCode, a_ErrorMsg.c_str());
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}
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};
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////////////////////////////////////////////////////////////////////////////////
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// cHTTPServer:
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cHTTPServer::cHTTPServer(void) :
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m_Callbacks(nullptr)
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{
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}
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cHTTPServer::~cHTTPServer()
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{
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Stop();
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}
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bool cHTTPServer::Initialize(void)
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{
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// Read the HTTPS cert + key:
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AString CertFile = cFile::ReadWholeFile("webadmin/httpscert.crt");
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AString KeyFile = cFile::ReadWholeFile("webadmin/httpskey.pem");
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if (!CertFile.empty() && !KeyFile.empty())
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{
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m_Cert.reset(new cX509Cert);
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int res = m_Cert->Parse(CertFile.data(), CertFile.size());
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if (res == 0)
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{
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m_CertPrivKey.reset(new cCryptoKey);
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int res2 = m_CertPrivKey->ParsePrivate(KeyFile.data(), KeyFile.size(), "");
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if (res2 != 0)
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{
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// Reading the private key failed, reset the cert:
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LOGWARNING("WebServer: Cannot read HTTPS certificate private key: -0x%x", -res2);
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m_Cert.reset();
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}
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}
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else
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{
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LOGWARNING("WebServer: Cannot read HTTPS certificate: -0x%x", -res);
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}
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}
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// Notify the admin about the HTTPS / HTTP status
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if (m_Cert.get() == nullptr)
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{
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LOGWARNING("WebServer: The server is running in unsecured HTTP mode.");
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LOGINFO("Put a valid HTTPS certificate in file 'webadmin/httpscert.crt' and its corresponding private key to 'webadmin/httpskey.pem' (without any password) to enable HTTPS support");
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}
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else
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{
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LOGINFO("WebServer: The server is running in secure HTTPS mode.");
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}
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return true;
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}
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bool cHTTPServer::Start(cCallbacks & a_Callbacks, const AStringVector & a_Ports)
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{
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m_Callbacks = &a_Callbacks;
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// Open up requested ports:
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for (auto port : a_Ports)
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{
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UInt16 PortNum;
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if (!StringToInteger(port, PortNum))
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{
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LOGWARNING("WebServer: Invalid port value: \"%s\". Ignoring.", port.c_str());
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continue;
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}
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auto Handle = cNetwork::Listen(PortNum, std::make_shared<cHTTPServerListenCallbacks>(*this, PortNum));
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if (Handle->IsListening())
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{
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m_ServerHandles.push_back(Handle);
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}
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} // for port - a_Ports[]
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// Report success if at least one port opened successfully:
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return !m_ServerHandles.empty();
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}
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void cHTTPServer::Stop(void)
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{
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for (auto handle : m_ServerHandles)
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{
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handle->Close();
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}
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m_ServerHandles.clear();
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}
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cTCPLink::cCallbacksPtr cHTTPServer::OnIncomingConnection(const AString & a_RemoteIPAddress, UInt16 a_RemotePort)
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{
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UNUSED(a_RemoteIPAddress);
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UNUSED(a_RemotePort);
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if (m_Cert.get() != nullptr)
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{
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return std::make_shared<cSslHTTPConnection>(*this, m_Cert, m_CertPrivKey);
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}
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else
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{
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return std::make_shared<cHTTPConnection>(*this);
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}
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}
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void cHTTPServer::NewRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
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{
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m_Callbacks->OnRequestBegun(a_Connection, a_Request);
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}
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void cHTTPServer::RequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request, const char * a_Data, size_t a_Size)
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{
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m_Callbacks->OnRequestBody(a_Connection, a_Request, a_Data, a_Size);
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}
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void cHTTPServer::RequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
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{
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m_Callbacks->OnRequestFinished(a_Connection, a_Request);
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a_Connection.AwaitNextRequest();
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}
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