projects/smsdaemon/ModemTransceiver.cpp

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

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

#include <time.h>


#include "serialport/SerialPort.h"

#include "GsmModem.h"

#include "util.h"
#include "common.h"

#include "SmsPdu.h"
#include "SmsHelper.h"

using namespace std;


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


string GsmModem::GetResponse()
{

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

        buf.push_back(0);

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

        return str;
}


string GsmModem::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 )
        {
                Common::instance()->logMessage( string("GsmModem::Command time out --") + command);
                        Common::instance()->logMessage( string("Modem responded: ") + Util::str_trim(response) );
                        _timeout = true;
            break;
        }
        }

        Util::Sleep(5);


        return response;
}

vector<SMS> GsmModem::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);
                retval.push_back( SmsHelper::FromPduString(sms_entry) );;

                if (endpos == string::npos)
                        break;
        
                result = result.substr(endpos, result.length() - endpos);
        }

        return retval;
}


void GsmModem::SendSmsPdu(std::string pdu, int len) //pdu inclussive leading "00"
{
        Common::instance()->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 GsmModem::SendSms(string to, string message, bool allowMultipart)
{
        Common::instance()->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);
        }
        Common::instance()->logMessage( "All PDU's send");

}

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

int  GsmModem::DeleteAllSms()
{
        vector<SMS> sms = ReadSms(true);

        for (unsigned int i= 0; i<sms.size(); ++i)
        {
                DeleteSms( sms[i].GetIndex() );
        }
        return sms.size();
}


void GsmModem::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 GsmModem::HandlePincode()
{
        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("AT+CPIN=0067");
                        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 GsmModem::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();
}


void DebugGsmModem::SendSms(std::string to, std::string message, bool allowMultipart) 
{
        _to=to; 
        _message = message; 
        _multipart = allowMultipart;

        if (_print)
        {
                cout << "DebugGsmModem::SendSms --------------" << endl;
                cout << "To:        " << to << endl;;
                cout << "Message:   " << message << endl;
                cout << "Multipart: " << allowMultipart << endl;

        }
}

std::vector<SMS> DebugGsmModem::ReadSms(bool readAll)
{
        vector<SMS> result;
        return result;
}
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			#include "GsmModem.h"
14
15			#include "util.h"
16			#include "common.h"
17
18	torben	63	#include "SmsPdu.h"
19	torben	142	#include "SmsHelper.h"
20	torben	26
21			using namespace std;
22
23
24
25			GsmModem::GsmModem(SerialPort& serialport)
26			: m_port(serialport)
27			{
28			}
29
30
31
32			string GsmModem::GetResponse()
33			{
34
35			SerialPort::DataBuffer buf;
36			m_port.Read(buf);
37
38			buf.push_back(0);
39
40			std::string str((char*) &buf[0]);
41
42			return str;
43			}
44
45	torben	34
46	torben	26	string GsmModem::Command(string command, string term)
47			{
48			time_t start,now;
49			start = time(0);
50	torben	57	_timeout = false;
51	torben	26
52	torben	34	if (term != "> ")
53			command.append("\r"); //Dont append CarriageReturn if sending SMS
54
55	torben	26	m_port.Write(command);
56
57	torben	34	Util::Sleep(1);
58	torben	26	string response = GetResponse();
59
60			unsigned int tlen = term.length();
61			while ( 1 )
62			{
63			if (response.length() >= tlen)
64			{
65			if (response.substr(response.length()-tlen,tlen) == term)
66			break;
67			}
68
69			response += GetResponse();
70	torben	34	Util::Sleep(1);
71	torben	26
72			now = time(0);
73			if ( (now-start) > 10 )
74			{
75			Common::instance()->logMessage( string("GsmModem::Command time out --") + command);
76	torben	72	Common::instance()->logMessage( string("Modem responded: ") + Util::str_trim(response) );
77	torben	57	_timeout = true;
78	torben	26	break;
79			}
80			}
81
82			Util::Sleep(5);
83
84
85			return response;
86			}
87
88			vector<SMS> GsmModem::ReadSms(bool readAll)
89			{
90	torben	63
91	torben	75	Command( "AT+CMGF=0" ); //Set SMS format to PDU
92	torben	63
93	torben	26	const string search = "+CMGL: ";
94			std::string cmd = "AT+CMGL";
95			if (readAll)
96	torben	75	cmd.append("=4");
97	torben	26
98			string result = Command(cmd);
99
100			vector<SMS> retval;
101			if (result.find(search) == string::npos)
102			return retval;
103
104			result = result.substr(2, result.length() - 8); //remove trailing "\r\nOK\r\n" and initial "\r\n"
105
106
107			while ( 1 )
108			{
109			unsigned int endpos = result.find(search,5);
110
111
112			string sms_entry = result.substr(0,endpos);
113	torben	142	retval.push_back( SmsHelper::FromPduString(sms_entry) );;
114	torben	26
115			if (endpos == string::npos)
116			break;
117
118			result = result.substr(endpos, result.length() - endpos);
119			}
120
121			return retval;
122			}
123
124	torben	59
125			void GsmModem::SendSmsPdu(std::string pdu, int len) //pdu inclussive leading "00"
126			{
127			Common::instance()->logMessage( string("SMS pdu send") );
128
129			Command("AT+CMGF=0");
130			Util::Sleep(2);
131
132			string line1 = "AT+CMGS=";
133			line1.append( Util::str_formatint(len) );
134			line1.append("\r");
135
136
137			Command(line1,"> ");
138
139			pdu.append("\032"); // \032 == Ctrl+Z
140			Command( pdu );
141			Util::Sleep( 50 );
142			Common::instance()->smsCounter.outgoing++;
143			}
144
145	torben	63	void GsmModem::SendSms(string to, string message, bool allowMultipart)
146	torben	26	{
147			Common::instance()->logMessage( string("SMS send to ") + to);
148
149	torben	63	if (to.at(0) == '+')
150			to.erase(0,0);
151	torben	26
152	torben	135	vector<PduInfo> pdu_vec = SmsPdu::CreateSmsPdu(to, Util::str_latin2gsm(message), allowMultipart);
153	torben	26
154	torben	63	for (unsigned i=0; i<pdu_vec.size(); ++i)
155			{
156			PduInfo& pdu = pdu_vec[i];
157	torben	26
158	torben	63	SendSmsPdu(pdu.pdu, pdu.len);
159	torben	50	}
160	torben	136	Common::instance()->logMessage( "All PDU's send");
161	torben	26
162			}
163
164			void GsmModem::DeleteSms(std::string smsIndex)
165			{
166			string cmd = "AT+CMGD=";
167			cmd.append(smsIndex);
168			Command(cmd);
169			}
170
171			int GsmModem::DeleteAllSms()
172			{
173			vector<SMS> sms = ReadSms(true);
174
175			for (unsigned int i= 0; i<sms.size(); ++i)
176			{
177	torben	142	DeleteSms( sms[i].GetIndex() );
178	torben	26	}
179			return sms.size();
180			}
181
182
183
184	torben	105	void GsmModem::WaitForSimcard()
185			{
186			int start = time(0);
187			string result;
188
189
190			while (result != "^SSIM READY")
191			{
192			result += GetResponse();
193			result = Util::str_trim(result);
194
195			if ( (time(0) - start) > 10)
196			throw std::runtime_error("Sim card timed out:");
197			Util::Sleep(100);
198			}
199
200			}
201
202			void GsmModem::HandlePincode()
203			{
204			string result = Command("AT+CPIN?");
205			result = Util::str_trim(result);
206			result.erase(result.length() -2, 2); //remove trailing ok
207			result = Util::str_trim(result);
208			if (result != "+CPIN: READY")
209			{
210			if (result == "+CPIN: SIM PIN")
211			{
212			Command("AT^SSET=1");
213			result = Command("AT+CPIN=0067");
214			if ( result.substr(result.length()-4, 4) != "OK\r\n")
215			throw std::runtime_error(string("Illegal pincode: ") + result);
216
217			WaitForSimcard();
218			}
219			else
220			{
221			throw std::runtime_error(string("AT+CPIN? returned unhandled code: ") + result);
222			}
223
224			}
225			}
226
227	torben	26	void GsmModem::Init()
228			{
229	torben	58	Command( "AT" );
230	torben	57	if (_timeout)
231			throw std::runtime_error("Modem did not respond!");
232
233	torben	58	Command( "ATZ" ); //Reset any previous setup
234
235	torben	33	Command( "AT\\Q3" ); //Hardware flow control
236	torben	26
237			Command( "ATE0" ); //Disable echo
238
239			Command ("AT^SM20=0,0" ); //No SM20 compability
240
241	torben	83	//Command("AT+CGATT=1"); //GPRS Attach
242
243			//Command("AT+CGSMS=2"); //SMS over GPRS preferred
244
245	torben	105	HandlePincode();
246	torben	26	}
247	torben	59
248
249	torben	67
250
251			void DebugGsmModem::SendSms(std::string to, std::string message, bool allowMultipart)
252			{
253			_to=to;
254			_message = message;
255			_multipart = allowMultipart;
256
257			if (_print)
258			{
259			cout << "DebugGsmModem::SendSms --------------" << endl;
260			cout << "To: " << to << endl;;
261			cout << "Message: " << message << endl;
262			cout << "Multipart: " << allowMultipart << endl;
263
264			}
265			}
266
267	torben	144	std::vector<SMS> DebugGsmModem::ReadSms(bool readAll)
268			{
269			vector<SMS> result;
270			return result;
271			}