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 "SmsHelper.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);
                retval.push_back( SmsHelper::FromPduString(sms_entry) );;

                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);
}

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

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


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();
}
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	142	#include "SmsHelper.h"
22	torben	26
23			using namespace std;
24
25
26
27	torben	149	ModemTransceiver::ModemTransceiver(SerialPort& serialport)
28	torben	26	: m_port(serialport)
29			{
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			now = time(0);
75			if ( (now-start) > 10 )
76			{
77	torben	157	Logger::logMessage( string("ModemTransceiver::Command time out --") + command);
78			Logger::logMessage( string("Modem responded: ") + Util::str_trim(response) );
79	torben	57	_timeout = true;
80	torben	26	break;
81			}
82			}
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
102			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
114			string sms_entry = result.substr(0,endpos);
115	torben	142	retval.push_back( SmsHelper::FromPduString(sms_entry) );;
116	torben	26
117			if (endpos == string::npos)
118			break;
119
120			result = result.substr(endpos, result.length() - endpos);
121			}
122
123			return retval;
124			}
125
126	torben	59
127	torben	149	void ModemTransceiver::SendSmsPdu(std::string pdu, int len) //pdu inclussive leading "00"
128	torben	59	{
129	torben	157	Logger::logMessage( string("SMS pdu send") );
130	torben	59
131			Command("AT+CMGF=0");
132			Util::Sleep(2);
133
134			string line1 = "AT+CMGS=";
135			line1.append( Util::str_formatint(len) );
136			line1.append("\r");
137
138
139			Command(line1,"> ");
140
141			pdu.append("\032"); // \032 == Ctrl+Z
142			Command( pdu );
143			Util::Sleep( 50 );
144			Common::instance()->smsCounter.outgoing++;
145			}
146
147	torben	149	void ModemTransceiver::SendSms(string to, string message, bool allowMultipart)
148	torben	26	{
149	torben	157	Logger::logMessage( string("SMS send to ") + to);
150	torben	26
151	torben	63	if (to.at(0) == '+')
152			to.erase(0,0);
153	torben	26
154	torben	135	vector<PduInfo> pdu_vec = SmsPdu::CreateSmsPdu(to, Util::str_latin2gsm(message), allowMultipart);
155	torben	26
156	torben	63	for (unsigned i=0; i<pdu_vec.size(); ++i)
157			{
158			PduInfo& pdu = pdu_vec[i];
159	torben	26
160	torben	63	SendSmsPdu(pdu.pdu, pdu.len);
161	torben	50	}
162	torben	157	Logger::logMessage( "All PDU's send");
163	torben	26
164			}
165
166	torben	149	void ModemTransceiver::DeleteSms(std::string smsIndex)
167	torben	26	{
168			string cmd = "AT+CMGD=";
169			cmd.append(smsIndex);
170			Command(cmd);
171			}
172
173	torben	149	int ModemTransceiver::DeleteAllSms()
174	torben	26	{
175			vector<SMS> sms = ReadSms(true);
176
177			for (unsigned int i= 0; i<sms.size(); ++i)
178			{
179	torben	142	DeleteSms( sms[i].GetIndex() );
180	torben	26	}
181			return sms.size();
182			}
183
184
185
186	torben	149	void ModemTransceiver::WaitForSimcard()
187	torben	105	{
188			int start = time(0);
189			string result;
190
191
192			while (result != "^SSIM READY")
193			{
194			result += GetResponse();
195			result = Util::str_trim(result);
196
197			if ( (time(0) - start) > 10)
198			throw std::runtime_error("Sim card timed out:");
199			Util::Sleep(100);
200			}
201
202			}
203
204	torben	149	void ModemTransceiver::HandlePincode()
205	torben	105	{
206	torben	171	string pin = Common::instance()->GetConfigfile()->GetValue("gsmmodem","pin");
207
208	torben	105	string result = Command("AT+CPIN?");
209			result = Util::str_trim(result);
210			result.erase(result.length() -2, 2); //remove trailing ok
211			result = Util::str_trim(result);
212			if (result != "+CPIN: READY")
213			{
214			if (result == "+CPIN: SIM PIN")
215			{
216			Command("AT^SSET=1");
217	torben	171	result = Command( string("AT+CPIN=")+pin );
218	torben	105	if ( result.substr(result.length()-4, 4) != "OK\r\n")
219			throw std::runtime_error(string("Illegal pincode: ") + result);
220
221			WaitForSimcard();
222			}
223			else
224			{
225			throw std::runtime_error(string("AT+CPIN? returned unhandled code: ") + result);
226			}
227
228			}
229			}
230
231	torben	149	void ModemTransceiver::Init()
232	torben	26	{
233	torben	58	Command( "AT" );
234	torben	57	if (_timeout)
235			throw std::runtime_error("Modem did not respond!");
236
237	torben	58	Command( "ATZ" ); //Reset any previous setup
238
239	torben	33	Command( "AT\\Q3" ); //Hardware flow control
240	torben	26
241			Command( "ATE0" ); //Disable echo
242
243			Command ("AT^SM20=0,0" ); //No SM20 compability
244
245	torben	83	//Command("AT+CGATT=1"); //GPRS Attach
246
247			//Command("AT+CGSMS=2"); //SMS over GPRS preferred
248
249	torben	105	HandlePincode();
250	torben	26	}