--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3rdparty/vmime/tests/net/smtp/SMTPTransportTestUtils.hpp	Tue Aug 17 11:19:54 2021 +0200
@@ -0,0 +1,593 @@
+//
+// VMime library (http://www.vmime.org)
+// Copyright (C) 2002-2013 Vincent Richard <vincent@vmime.org>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 3 of
+// the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// Linking this library statically or dynamically with other modules is making
+// a combined work based on this library.  Thus, the terms and conditions of
+// the GNU General Public License cover the whole combination.
+//
+
+
+/** Accepts connection and fails on greeting.
+  */
+class greetingErrorSMTPTestSocket : public lineBasedTestSocket
+{
+public:
+
+	void onConnected()
+	{
+		localSend("421 test.vmime.org Service not available, closing transmission channel\r\n");
+		disconnect();
+	}
+
+	void processCommand()
+	{
+		if (!haveMoreLines())
+			return;
+
+		getNextLine();
+
+		localSend("502 Command not implemented\r\n");
+		processCommand();
+	}
+};
+
+
+/** SMTP test server 1.
+  *
+  * Test send().
+  * Ensure MAIL and RCPT commands are sent correctly.
+  */
+class MAILandRCPTSMTPTestSocket : public lineBasedTestSocket
+{
+public:
+
+	MAILandRCPTSMTPTestSocket()
+	{
+		m_recipients.insert("recipient1@test.vmime.org");
+		m_recipients.insert("recipient2@test.vmime.org");
+		m_recipients.insert("recipient3@test.vmime.org");
+
+		m_state = STATE_NOT_CONNECTED;
+		m_ehloSent = m_heloSent = m_mailSent = m_rcptSent = m_dataSent = m_quitSent = false;
+	}
+
+	~MAILandRCPTSMTPTestSocket()
+	{
+		VASSERT("Client must send the DATA command", m_dataSent);
+		VASSERT("Client must send the QUIT command", m_quitSent);
+	}
+
+	void onConnected()
+	{
+		localSend("220 test.vmime.org Service ready\r\n");
+		processCommand();
+
+		m_state = STATE_COMMAND;
+	}
+
+	void processCommand()
+	{
+		if (!haveMoreLines())
+			return;
+
+		vmime::string line = getNextLine();
+		std::istringstream iss(line);
+
+		switch (m_state)
+		{
+		case STATE_NOT_CONNECTED:
+
+			localSend("451 Requested action aborted: invalid state\r\n");
+			break;
+
+		case STATE_COMMAND:
+		{
+			std::string cmd;
+			iss >> cmd;
+
+			if (cmd.empty())
+			{
+				localSend("500 Syntax error, command unrecognized\r\n");
+			}
+			else if (cmd == "EHLO")
+			{
+				localSend("502 Command not implemented\r\n");
+
+				m_ehloSent = true;
+			}
+			else if (cmd == "HELO")
+			{
+				VASSERT("Client must send the EHLO command before HELO", m_ehloSent);
+
+				localSend("250 OK\r\n");
+
+				m_heloSent = true;
+			}
+			else if (cmd == "MAIL")
+			{
+				VASSERT("Client must send the HELO command", m_heloSent);
+				VASSERT("The MAIL command must be sent only one time", !m_mailSent);
+
+				VASSERT_EQ("MAIL", std::string("MAIL FROM:<expeditor@test.vmime.org>"), line);
+
+				localSend("250 OK\r\n");
+
+				m_mailSent = true;
+			}
+			else if (cmd == "RCPT")
+			{
+				const vmime::size_t lt = line.find('<');
+				const vmime::size_t gt = line.find('>');
+
+				VASSERT("RCPT <", lt != vmime::string::npos);
+				VASSERT("RCPT >", gt != vmime::string::npos);
+				VASSERT("RCPT ><", gt >= lt);
+
+				const vmime::string recip = vmime::string
+					(line.begin() + lt + 1, line.begin() + gt);
+
+				std::set <vmime::string>::iterator it =
+					m_recipients.find(recip);
+
+				VASSERT(std::string("Recipient not found: '") + recip + "'",
+					it != m_recipients.end());
+
+				m_recipients.erase(it);
+
+				localSend("250 OK, recipient accepted\r\n");
+
+				m_rcptSent = true;
+			}
+			else if (cmd == "DATA")
+			{
+				VASSERT("Client must send the MAIL command", m_mailSent);
+				VASSERT("Client must send the RCPT command", m_rcptSent);
+				VASSERT("All recipients", m_recipients.empty());
+
+				localSend("354 Ready to accept data; end with <CRLF>.<CRLF>\r\n");
+
+				m_state = STATE_DATA;
+				m_msgData.clear();
+
+				m_dataSent = true;
+			}
+			else if (cmd == "NOOP")
+			{
+				localSend("250 Completed\r\n");
+			}
+			else if (cmd == "QUIT")
+			{
+				m_quitSent = true;
+
+				localSend("221 test.vmime.org Service closing transmission channel\r\n");
+			}
+			else
+			{
+				localSend("502 Command not implemented\r\n");
+			}
+
+			break;
+		}
+		case STATE_DATA:
+		{
+			if (line == ".")
+			{
+				VASSERT_EQ("Data", "Message data\r\n", m_msgData);
+
+				localSend("250 Message accepted for delivery\r\n");
+				m_state = STATE_COMMAND;
+			}
+			else
+			{
+				m_msgData += line + "\r\n";
+			}
+
+			break;
+		}
+
+		}
+
+		processCommand();
+	}
+
+private:
+
+	enum State
+	{
+		STATE_NOT_CONNECTED,
+		STATE_COMMAND,
+		STATE_DATA
+	};
+
+	int m_state;
+
+	std::set <vmime::string> m_recipients;
+
+	std::string m_msgData;
+
+	bool m_ehloSent, m_heloSent, m_mailSent, m_rcptSent,
+	     m_dataSent, m_quitSent;
+};
+
+
+
+/** SMTP test server 2.
+  *
+  * Test CHUNKING extension/BDAT command.
+  */
+class chunkingSMTPTestSocket : public testSocket
+{
+public:
+
+	chunkingSMTPTestSocket()
+	{
+		m_state = STATE_NOT_CONNECTED;
+		m_bdatChunkCount = 0;
+		m_ehloSent = m_mailSent = m_rcptSent = m_quitSent = false;
+	}
+
+	~chunkingSMTPTestSocket()
+	{
+		VASSERT_EQ("BDAT chunk count", 3, m_bdatChunkCount);
+		VASSERT("Client must send the QUIT command", m_quitSent);
+	}
+
+	void onConnected()
+	{
+		localSend("220 test.vmime.org Service ready\r\n");
+		processCommand();
+
+		m_state = STATE_COMMAND;
+	}
+
+	void onDataReceived()
+	{
+		if (m_state == STATE_DATA)
+		{
+			if (m_bdatChunkReceived != m_bdatChunkSize)
+			{
+				const size_t remaining = m_bdatChunkSize - m_bdatChunkReceived;
+				const size_t received = localReceiveRaw(NULL, remaining);
+
+				m_bdatChunkReceived += received;
+			}
+
+			if (m_bdatChunkReceived == m_bdatChunkSize)
+			{
+				m_state = STATE_COMMAND;
+			}
+		}
+
+		processCommand();
+	}
+
+	void processCommand()
+	{
+		vmime::string line;
+
+		if (!localReceiveLine(line))
+			return;
+
+		std::istringstream iss(line);
+
+		switch (m_state)
+		{
+		case STATE_NOT_CONNECTED:
+
+			localSend("451 Requested action aborted: invalid state\r\n");
+			break;
+
+		case STATE_COMMAND:
+		{
+			std::string cmd;
+			iss >> cmd;
+
+			if (cmd == "EHLO")
+			{
+				localSend("250-test.vmime.org says hello\r\n");
+				localSend("250 CHUNKING\r\n");
+
+				m_ehloSent = true;
+			}
+			else if (cmd == "HELO")
+			{
+				VASSERT("Client must not send the HELO command, as EHLO succeeded", false);
+			}
+			else if (cmd == "MAIL")
+			{
+				VASSERT("The MAIL command must be sent only one time", !m_mailSent);
+
+				localSend("250 OK\r\n");
+
+				m_mailSent = true;
+			}
+			else if (cmd == "RCPT")
+			{
+				localSend("250 OK, recipient accepted\r\n");
+
+				m_rcptSent = true;
+			}
+			else if (cmd == "DATA")
+			{
+				VASSERT("BDAT must be used here!", false);
+			}
+			else if (cmd == "BDAT")
+			{
+				VASSERT("Client must send the MAIL command", m_mailSent);
+				VASSERT("Client must send the RCPT command", m_rcptSent);
+
+				unsigned long chunkSize = 0;
+				iss >> chunkSize;
+
+				std::string last;
+				iss >> last;
+
+				if (m_bdatChunkCount == 0)
+				{
+					VASSERT_EQ("BDAT chunk1 size", 262144, chunkSize);
+					VASSERT_EQ("BDAT chunk1 last", "", last);
+				}
+				else if (m_bdatChunkCount == 1)
+				{
+					VASSERT_EQ("BDAT chunk2 size", 262144, chunkSize);
+					VASSERT_EQ("BDAT chunk2 last", "", last);
+				}
+				else if (m_bdatChunkCount == 2)
+				{
+					VASSERT_EQ("BDAT chunk3 size", 4712, chunkSize);
+					VASSERT_EQ("BDAT chunk3 last", "LAST", last);
+				}
+				else
+				{
+					VASSERT("No more BDAT command should be issued!", false);
+				}
+
+				m_bdatChunkSize = chunkSize;
+				m_bdatChunkReceived = 0;
+				m_bdatChunkCount++;
+				m_state = STATE_DATA;
+
+				localSend("250 chunk received\r\n");
+			}
+			else if (cmd == "NOOP")
+			{
+				localSend("250 Completed\r\n");
+			}
+			else if (cmd == "QUIT")
+			{
+				localSend("221 test.vmime.org Service closing transmission channel\r\n");
+
+				m_quitSent = true;
+			}
+			else
+			{
+				localSend("502 Command not implemented\r\n");
+			}
+
+			break;
+		}
+
+		}
+
+		processCommand();
+	}
+
+private:
+
+	enum State
+	{
+		STATE_NOT_CONNECTED,
+		STATE_COMMAND,
+		STATE_DATA
+	};
+
+	int m_state;
+	int m_bdatChunkCount;
+	int m_bdatChunkSize, m_bdatChunkReceived;
+
+	bool m_ehloSent, m_mailSent, m_rcptSent, m_quitSent;
+};
+
+
+class SMTPTestMessage : public vmime::message
+{
+public:
+
+	vmime::size_t getChunkBufferSize() const
+	{
+		static vmime::net::smtp::SMTPChunkingOutputStreamAdapter chunkStream(vmime::null, 0, NULL);
+		return chunkStream.getBlockSize();
+	}
+
+	const std::vector <vmime::string>& getChunks() const
+	{
+		static std::vector <vmime::string> chunks;
+
+		if (chunks.size() == 0)
+		{
+			chunks.push_back(vmime::string(1000, 'A'));
+			chunks.push_back(vmime::string(3000, 'B'));
+			chunks.push_back(vmime::string(500000, 'C'));
+			chunks.push_back(vmime::string(25000, 'D'));
+		}
+
+		return chunks;
+	}
+
+	void generateImpl
+		(const vmime::generationContext& /* ctx */, vmime::utility::outputStream& outputStream,
+		 const size_t /* curLinePos */ = 0, size_t* /* newLinePos */ = NULL) const
+	{
+		for (unsigned int i = 0, n = getChunks().size() ; i < n ; ++i)
+		{
+			const vmime::string& chunk = getChunks()[i];
+			outputStream.write(chunk.data(), chunk.size());
+		}
+	}
+};
+
+
+
+/** SMTP test server 3.
+  *
+  * Test SIZE extension.
+  */
+template <bool WITH_CHUNKING>
+class bigMessageSMTPTestSocket : public testSocket
+{
+public:
+
+	bigMessageSMTPTestSocket()
+	{
+		m_state = STATE_NOT_CONNECTED;
+		m_ehloSent = m_mailSent = m_rcptSent = m_quitSent = false;
+	}
+
+	~bigMessageSMTPTestSocket()
+	{
+		VASSERT("Client must send the QUIT command", m_quitSent);
+	}
+
+	void onConnected()
+	{
+		localSend("220 test.vmime.org Service ready\r\n");
+		processCommand();
+
+		m_state = STATE_COMMAND;
+	}
+
+	void onDataReceived()
+	{
+		processCommand();
+	}
+
+	void processCommand()
+	{
+		vmime::string line;
+
+		if (!localReceiveLine(line))
+			return;
+
+		std::istringstream iss(line);
+
+		switch (m_state)
+		{
+		case STATE_NOT_CONNECTED:
+
+			localSend("451 Requested action aborted: invalid state\r\n");
+			break;
+
+		case STATE_COMMAND:
+		{
+			std::string cmd;
+			iss >> cmd;
+
+			if (cmd == "EHLO")
+			{
+				localSend("250-test.vmime.org says hello\r\n");
+
+				if (WITH_CHUNKING)
+					localSend("250-CHUNKING\r\n");
+
+				localSend("250 SIZE 1000000\r\n");
+
+				m_ehloSent = true;
+			}
+			else if (cmd == "HELO")
+			{
+				VASSERT("Client must not send the HELO command, as EHLO succeeded", false);
+			}
+			else if (cmd == "MAIL")
+			{
+				VASSERT("The MAIL command must be sent only one time", !m_mailSent);
+
+				std::string address;
+				iss >> address;
+
+				VASSERT_EQ("MAIL/address", "FROM:<expeditor@test.vmime.org>", address);
+
+				std::string option;
+				iss >> option;
+
+				VASSERT_EQ("MAIL/size", "SIZE=4194304", option);
+
+				localSend("552 Channel size limit exceeded\r\n");
+
+				m_mailSent = true;
+			}
+			else if (cmd == "NOOP")
+			{
+				localSend("250 Completed\r\n");
+			}
+			else if (cmd == "QUIT")
+			{
+				localSend("221 test.vmime.org Service closing transmission channel\r\n");
+
+				m_quitSent = true;
+			}
+			else
+			{
+				VASSERT("No other command should be sent", false);
+
+				localSend("502 Command not implemented\r\n");
+			}
+
+			break;
+		}
+
+		}
+
+		processCommand();
+	}
+
+private:
+
+	enum State
+	{
+		STATE_NOT_CONNECTED,
+		STATE_COMMAND,
+		STATE_DATA
+	};
+
+	int m_state;
+
+	bool m_ehloSent, m_mailSent, m_rcptSent, m_quitSent;
+};
+
+
+template <unsigned long SIZE>
+class SMTPBigTestMessage : public vmime::message
+{
+public:
+
+	size_t getGeneratedSize(const vmime::generationContext& /* ctx */)
+	{
+		return SIZE;
+	}
+
+	void generateImpl(const vmime::generationContext& /* ctx */,
+		 vmime::utility::outputStream& outputStream,
+		 const vmime::size_t /* curLinePos */ = 0,
+		 vmime::size_t* /* newLinePos */ = NULL) const
+	{
+		for (unsigned int i = 0, n = SIZE ; i < n ; ++i)
+			outputStream.write("X", 1);
+	}
+};
+
+typedef SMTPBigTestMessage <4194304> SMTPBigTestMessage4MB;