projects/smsdaemon/ModemTransceiver.cpp

/* using http://sourceforge.net/projects/libserial/
 */

#include <iostream>
#include <string>
#include <stdexcept>

#include <time.h>


#include "serialport/SerialPort.h"

#include "ModemTransceiver.h"

#include "Util.h"
#include "Common.h"
#include "Logger.h"
#include "ConfigFile.h"

#include "SmsPdu.h"
#include "Exceptions.h"

using namespace std;


ModemTransceiver::ModemTransceiver(SerialPort& serialport)
                : m_port(serialport)
{
}


string ModemTransceiver::GetResponse()
{

        SerialPort::DataBuffer buf;
        m_port.Read(buf);

        buf.push_back(0);

        std::string str((char*) &buf[0]);

        return str;
}


string ModemTransceiver::Command(string command, string term)
{
        time_t  start,now;
        start = time(0);
        _timeout = false;

        if (term != "> ")
                command.append("\r"); //Dont append CarriageReturn if sending SMS

        m_port.Write(command);

        Util::Sleep(1);
        string response = GetResponse();

        unsigned int tlen = term.length();
        while ( 1 )
        {
                if (response.length() >= tlen)
                {
                        if (response.substr(response.length()-tlen,tlen) == term)
                                break;
                }

                response += GetResponse();
                Util::Sleep(1);

                now = time(0);
                if ( (now-start) > 10 )
                {
                        Logger::logMessage( string("ModemTransceiver::Command time out --") + command);
                        Logger::logMessage( string("Modem responded: ") + Util::str_trim(response) );
                        _timeout = true;
                        break;
                }
        }

        Util::Sleep(5);


        return response;
}

vector<SMS> ModemTransceiver::ReadSms(bool readAll)
{

        Command( "AT+CMGF=0" ); //Set SMS format to PDU

        const string search = "+CMGL: ";
        std::string cmd = "AT+CMGL";
        if (readAll)
                cmd.append("=4");

        string result = Command(cmd);

        vector<SMS> retval;
        if (result.find(search) == string::npos)
                return retval;

        result = result.substr(2, result.length() - 8); //remove trailing "\r\nOK\r\n" and initial "\r\n"


        while ( 1 )
        {
                unsigned int endpos = result.find(search,5);


                string sms_entry = result.substr(0,endpos);

                try
                {
                        SMS sms = FromPduString(sms_entry);

                        retval.push_back( sms );
                }
                catch (smsnotfoundexception& e) //do nothing
                {
                }

                if (endpos == string::npos)
                        break;

                result = result.substr(endpos, result.length() - endpos);
        }

        return retval;
}


void ModemTransceiver::SendSmsPdu(std::string pdu, int len) //pdu inclussive leading "00"
{
        Logger::logMessage( string("SMS pdu send") );

        Command("AT+CMGF=0");
        Util::Sleep(2);

        string line1 = "AT+CMGS=";
        line1.append( Util::str_formatint(len) );
        line1.append("\r");


        Command(line1,"> ");

        pdu.append("\032"); // \032 == Ctrl+Z
        Command( pdu );
        Util::Sleep( 50 );
        Common::instance()->smsCounter.outgoing++;
}

void ModemTransceiver::SendSms(string to, string message, bool allowMultipart)
{
        Logger::logMessage( string("SMS send to ") + to);

        if (to.at(0) == '+')
                to.erase(0,0);

        vector<PduInfo> pdu_vec = SmsPdu::CreateSmsPdu(to, Util::str_latin2gsm(message), allowMultipart);

        for (unsigned i=0; i<pdu_vec.size(); ++i)
        {
                PduInfo& pdu = pdu_vec[i];

                SendSmsPdu(pdu.pdu, pdu.len);
        }
        Logger::logMessage( "All PDU's send");

}

void ModemTransceiver::DeleteSms(std::string smsIndex)
{
        string cmd = "AT+CMGD=";
        cmd.append(smsIndex);
        Command(cmd);
}


void ModemTransceiver::WaitForSimcard()
{
        int start = time(0);
        string result;


        while (result != "^SSIM READY")
        {
                result += GetResponse();
                result = Util::str_trim(result);

                if ( (time(0) - start) > 10)
                        throw std::runtime_error("Sim card timed out:");
                Util::Sleep(100);
        }

}

void ModemTransceiver::HandlePincode()
{
        string pin = Common::instance()->GetConfigfile()->GetValue("gsmmodem","pin");

        string result = Command("AT+CPIN?");
        result = Util::str_trim(result);
        result.erase(result.length() -2, 2); //remove trailing ok
        result = Util::str_trim(result);
        if (result != "+CPIN: READY")
        {
                if (result == "+CPIN: SIM PIN")
                {
                        Command("AT^SSET=1");
                        result = Command( string("AT+CPIN=")+pin  );
                        if ( result.substr(result.length()-4, 4) != "OK\r\n")
                                throw std::runtime_error(string("Illegal pincode: ") + result);

                        WaitForSimcard();
                }
                else
                {
                        throw std::runtime_error(string("AT+CPIN? returned unhandled code: ") + result);
                }

        }
}

void ModemTransceiver::Init()
{
        Command( "AT" );
        if (_timeout)
                throw std::runtime_error("Modem did not respond!");

        Command( "ATZ" ); //Reset any previous setup

        Command( "AT\\Q3" ); //Hardware flow control

        Command( "ATE0" ); //Disable echo

        Command ("AT^SM20=0,0" ); //No SM20 compability

        //Command("AT+CGATT=1"); //GPRS Attach

        //Command("AT+CGSMS=2"); //SMS over GPRS preferred

        HandlePincode();
}


SMS ModemTransceiver::FromRawString(const std::string& input)
{
        std::string smsline = input.substr(7, input.length() -7); //strip "+CMGL: "

        std::vector<std::string> lines = Util::str_split(smsline, "\r\n");
        std::vector<std::string> fields = Util::str_split(lines[0],",");

        std::string body;
        for (unsigned i=1; i<lines.size(); ++i)
        {
                std::string body_line = lines[i];


                if (body_line != "")
                {
                        if (body.length() > 0)
                                body += "\r\n";
                        body += body_line;
                }
        }

        body = Util::str_trim(body);

        SMS sms;

        sms.SetIndex( fields[0] );


        std::string sender = fields[2];
        sender = Util::str_replace(sender, "\"");
        sms.SetSender(sender);

        std::string timestamp = fields[4] + std::string(",") + fields[5];
        timestamp = Util::str_replace(timestamp, "\"");
        sms.SetTimestamp(timestamp);

        sms.SetMessage( Util::str_gsm2latin(body) );

        return sms;
}

SMS ModemTransceiver::FromPduString(const std::string& input)
{
        std::string smsline = input.substr(7, input.length() -7); //strip "+CMGL: "

        std::vector<std::string> lines = Util::str_split(smsline, "\r\n");
        std::vector<std::string> fields = Util::str_split(lines[0],",");

        std::string index = fields[0];
        DeleteSms(index);

        SMS sms = SmsPdu::ParseSmsPdu(lines[1]);

        sms.SetIndex(index);

        sms.SetMessage( Util::str_gsm2latin(sms.GetMessage()) ) ;

        return sms;
}
1	torben	26	/* using http://sourceforge.net/projects/libserial/
2			*/
3
4			#include <iostream>
5			#include <string>
6			#include <stdexcept>
7
8			#include <time.h>
9
10
11	torben	132	#include "serialport/SerialPort.h"
12	torben	26
13	torben	149	#include "ModemTransceiver.h"
14	torben	26
15	torben	158	#include "Util.h"
16			#include "Common.h"
17	torben	157	#include "Logger.h"
18	torben	171	#include "ConfigFile.h"
19	torben	26
20	torben	63	#include "SmsPdu.h"
21	torben	178	#include "Exceptions.h"
22	torben	26
23			using namespace std;
24
25
26
27	torben	149	ModemTransceiver::ModemTransceiver(SerialPort& serialport)
28	torben	180	: m_port(serialport)
29	torben	26	{
30			}
31
32
33
34	torben	149	string ModemTransceiver::GetResponse()
35	torben	26	{
36
37			SerialPort::DataBuffer buf;
38			m_port.Read(buf);
39
40			buf.push_back(0);
41
42			std::string str((char*) &buf[0]);
43
44			return str;
45			}
46
47	torben	34
48	torben	149	string ModemTransceiver::Command(string command, string term)
49	torben	26	{
50			time_t start,now;
51			start = time(0);
52	torben	57	_timeout = false;
53	torben	26
54	torben	34	if (term != "> ")
55			command.append("\r"); //Dont append CarriageReturn if sending SMS
56
57	torben	26	m_port.Write(command);
58
59	torben	34	Util::Sleep(1);
60	torben	26	string response = GetResponse();
61
62			unsigned int tlen = term.length();
63			while ( 1 )
64			{
65			if (response.length() >= tlen)
66			{
67			if (response.substr(response.length()-tlen,tlen) == term)
68			break;
69			}
70
71			response += GetResponse();
72	torben	34	Util::Sleep(1);
73	torben	26
74	torben	180	now = time(0);
75			if ( (now-start) > 10 )
76			{
77			Logger::logMessage( string("ModemTransceiver::Command time out --") + command);
78	torben	157	Logger::logMessage( string("Modem responded: ") + Util::str_trim(response) );
79	torben	57	_timeout = true;
80	torben	180	break;
81			}
82	torben	26	}
83
84			Util::Sleep(5);
85
86
87			return response;
88			}
89
90	torben	149	vector<SMS> ModemTransceiver::ReadSms(bool readAll)
91	torben	26	{
92	torben	63
93	torben	75	Command( "AT+CMGF=0" ); //Set SMS format to PDU
94	torben	63
95	torben	26	const string search = "+CMGL: ";
96			std::string cmd = "AT+CMGL";
97			if (readAll)
98	torben	75	cmd.append("=4");
99	torben	26
100			string result = Command(cmd);
101	torben	180
102	torben	26	vector<SMS> retval;
103			if (result.find(search) == string::npos)
104			return retval;
105
106			result = result.substr(2, result.length() - 8); //remove trailing "\r\nOK\r\n" and initial "\r\n"
107
108
109			while ( 1 )
110			{
111			unsigned int endpos = result.find(search,5);
112
113	torben	180
114	torben	26	string sms_entry = result.substr(0,endpos);
115
116	torben	180	try
117	torben	178	{
118	torben	180	SMS sms = FromPduString(sms_entry);
119
120	torben	178	retval.push_back( sms );
121			}
122			catch (smsnotfoundexception& e) //do nothing
123			{
124			}
125
126	torben	26	if (endpos == string::npos)
127			break;
128	torben	180
129	torben	26	result = result.substr(endpos, result.length() - endpos);
130			}
131
132			return retval;
133			}
134
135	torben	59
136	torben	149	void ModemTransceiver::SendSmsPdu(std::string pdu, int len) //pdu inclussive leading "00"
137	torben	59	{
138	torben	157	Logger::logMessage( string("SMS pdu send") );
139	torben	59
140			Command("AT+CMGF=0");
141			Util::Sleep(2);
142
143			string line1 = "AT+CMGS=";
144			line1.append( Util::str_formatint(len) );
145			line1.append("\r");
146
147
148			Command(line1,"> ");
149
150			pdu.append("\032"); // \032 == Ctrl+Z
151			Command( pdu );
152			Util::Sleep( 50 );
153			Common::instance()->smsCounter.outgoing++;
154			}
155
156	torben	149	void ModemTransceiver::SendSms(string to, string message, bool allowMultipart)
157	torben	26	{
158	torben	157	Logger::logMessage( string("SMS send to ") + to);
159	torben	26
160	torben	63	if (to.at(0) == '+')
161			to.erase(0,0);
162	torben	26
163	torben	135	vector<PduInfo> pdu_vec = SmsPdu::CreateSmsPdu(to, Util::str_latin2gsm(message), allowMultipart);
164	torben	26
165	torben	63	for (unsigned i=0; i<pdu_vec.size(); ++i)
166			{
167			PduInfo& pdu = pdu_vec[i];
168	torben	26
169	torben	63	SendSmsPdu(pdu.pdu, pdu.len);
170	torben	50	}
171	torben	157	Logger::logMessage( "All PDU's send");
172	torben	26
173			}
174
175	torben	149	void ModemTransceiver::DeleteSms(std::string smsIndex)
176	torben	26	{
177			string cmd = "AT+CMGD=";
178			cmd.append(smsIndex);
179			Command(cmd);
180			}
181
182
183	torben	149	void ModemTransceiver::WaitForSimcard()
184	torben	105	{
185			int start = time(0);
186			string result;
187
188
189			while (result != "^SSIM READY")
190			{
191			result += GetResponse();
192			result = Util::str_trim(result);
193
194			if ( (time(0) - start) > 10)
195			throw std::runtime_error("Sim card timed out:");
196			Util::Sleep(100);
197			}
198
199			}
200
201	torben	149	void ModemTransceiver::HandlePincode()
202	torben	105	{
203	torben	171	string pin = Common::instance()->GetConfigfile()->GetValue("gsmmodem","pin");
204
205	torben	105	string result = Command("AT+CPIN?");
206			result = Util::str_trim(result);
207			result.erase(result.length() -2, 2); //remove trailing ok
208			result = Util::str_trim(result);
209			if (result != "+CPIN: READY")
210			{
211			if (result == "+CPIN: SIM PIN")
212			{
213			Command("AT^SSET=1");
214	torben	171	result = Command( string("AT+CPIN=")+pin );
215	torben	105	if ( result.substr(result.length()-4, 4) != "OK\r\n")
216			throw std::runtime_error(string("Illegal pincode: ") + result);
217	torben	180
218	torben	105	WaitForSimcard();
219			}
220			else
221			{
222			throw std::runtime_error(string("AT+CPIN? returned unhandled code: ") + result);
223			}
224
225			}
226			}
227
228	torben	149	void ModemTransceiver::Init()
229	torben	26	{
230	torben	58	Command( "AT" );
231	torben	57	if (_timeout)
232			throw std::runtime_error("Modem did not respond!");
233
234	torben	58	Command( "ATZ" ); //Reset any previous setup
235
236	torben	33	Command( "AT\\Q3" ); //Hardware flow control
237	torben	26
238			Command( "ATE0" ); //Disable echo
239
240			Command ("AT^SM20=0,0" ); //No SM20 compability
241
242	torben	83	//Command("AT+CGATT=1"); //GPRS Attach
243
244			//Command("AT+CGSMS=2"); //SMS over GPRS preferred
245
246	torben	105	HandlePincode();
247	torben	26	}
248	torben	59
249
250	torben	180	SMS ModemTransceiver::FromRawString(const std::string& input)
251			{
252			std::string smsline = input.substr(7, input.length() -7); //strip "+CMGL: "
253
254			std::vector<std::string> lines = Util::str_split(smsline, "\r\n");
255			std::vector<std::string> fields = Util::str_split(lines[0],",");
256
257			std::string body;
258			for (unsigned i=1; i<lines.size(); ++i)
259			{
260			std::string body_line = lines[i];
261
262
263			if (body_line != "")
264			{
265			if (body.length() > 0)
266			body += "\r\n";
267			body += body_line;
268			}
269			}
270
271			body = Util::str_trim(body);
272
273			SMS sms;
274
275			sms.SetIndex( fields[0] );
276
277
278			std::string sender = fields[2];
279			sender = Util::str_replace(sender, "\"");
280			sms.SetSender(sender);
281
282			std::string timestamp = fields[4] + std::string(",") + fields[5];
283			timestamp = Util::str_replace(timestamp, "\"");
284			sms.SetTimestamp(timestamp);
285
286	torben	182	sms.SetMessage( Util::str_gsm2latin(body) );
287	torben	180
288			return sms;
289			}
290
291			SMS ModemTransceiver::FromPduString(const std::string& input)
292			{
293			std::string smsline = input.substr(7, input.length() -7); //strip "+CMGL: "
294
295			std::vector<std::string> lines = Util::str_split(smsline, "\r\n");
296			std::vector<std::string> fields = Util::str_split(lines[0],",");
297
298			std::string index = fields[0];
299			DeleteSms(index);
300
301			SMS sms = SmsPdu::ParseSmsPdu(lines[1]);
302
303			sms.SetIndex(index);
304
305	torben	182	sms.SetMessage( Util::str_gsm2latin(sms.GetMessage()) ) ;
306
307	torben	180	return sms;
308			}