projects/smsdaemon/ModemTransceiver.cpp

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

#include <iostream>

#include <string>
#include <cstring>
#include <stdexcept>

#include <sys/time.h>
#include <time.h>


#include "SerialPort.h"

#include "GsmModem.h"

#include "util.h"
#include "common.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);
                        _timeout = true;
            break;
        }
        }

        Util::Sleep(5);

//      cout  << response.length() << ":" << response << endl;
//      DumpString(response);

        return response;
}

vector<SMS> GsmModem::ReadSms(bool readAll)
{
        const string search = "+CMGL: ";
        std::string cmd = "AT+CMGL";
        if (readAll)
                cmd.append("=ALL");

        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( SMS::FromRawString(sms_entry) );;

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

        return retval;
}

void GsmModem::SendSms(string to, string message)
{
        Common::instance()->logMessage( string("SMS send to ") + to);

        Command("AT+CMGF=1");///Allways telling the format makes the application more stable
        Util::Sleep(2);

        string line1 = "AT+CMGS=";
        line1.append(to);
        line1.append("\r");

        Command(line1,"> ");

        if (message.length() > 160)
        {
                message = message.substr(0,160);
                Common::instance()->logMessage( "Trunkating message! ");
        }

        message.append("\032"); // \032 == Ctrl+Z

        Command( message ); //In textmode limit to 160 bytes


        Util::Sleep(50); //Give the modem some time to send the sms and be ready again
        Common::instance()->smsCounter.outgoing++;
}

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].sms_index);
        }
        return sms.size();
}


void GsmModem::Init()
{
        Command( "ATZ" ); //Reset any previous setup
        if (_timeout)
                throw std::runtime_error("Modem did not respond!");

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

        Command( "ATE0" ); //Disable echo

        Command( "AT+CMGF=1" ); //Set SMS format to text

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

        //Set RealTimeClock ??
        
        //Enter pin code ??
}
1	torben	26	/* using http://sourceforge.net/projects/libserial/
2			*/
3
4			#include <iostream>
5
6			#include <string>
7			#include <cstring>
8			#include <stdexcept>
9
10			#include <sys/time.h>
11			#include <time.h>
12
13
14			#include "SerialPort.h"
15
16			#include "GsmModem.h"
17
18			#include "util.h"
19			#include "common.h"
20
21
22			using namespace std;
23
24
25
26			GsmModem::GsmModem(SerialPort& serialport)
27			: m_port(serialport)
28			{
29			}
30
31
32
33			string GsmModem::GetResponse()
34			{
35
36			SerialPort::DataBuffer buf;
37			m_port.Read(buf);
38
39			buf.push_back(0);
40
41			std::string str((char*) &buf[0]);
42
43			return str;
44			}
45
46	torben	34
47	torben	26	string GsmModem::Command(string command, string term)
48			{
49			time_t start,now;
50			start = time(0);
51	torben	57	_timeout = false;
52	torben	26
53	torben	34	if (term != "> ")
54			command.append("\r"); //Dont append CarriageReturn if sending SMS
55
56	torben	26	m_port.Write(command);
57
58	torben	34	Util::Sleep(1);
59	torben	26	string response = GetResponse();
60
61			unsigned int tlen = term.length();
62			while ( 1 )
63			{
64			if (response.length() >= tlen)
65			{
66			if (response.substr(response.length()-tlen,tlen) == term)
67			break;
68			}
69
70			response += GetResponse();
71	torben	34	Util::Sleep(1);
72	torben	26
73			now = time(0);
74			if ( (now-start) > 10 )
75			{
76			Common::instance()->logMessage( string("GsmModem::Command time out --") + command);
77	torben	57	_timeout = true;
78	torben	26	break;
79			}
80			}
81
82			Util::Sleep(5);
83
84			// cout << response.length() << ":" << response << endl;
85			// DumpString(response);
86
87			return response;
88			}
89
90			vector<SMS> GsmModem::ReadSms(bool readAll)
91			{
92			const string search = "+CMGL: ";
93			std::string cmd = "AT+CMGL";
94			if (readAll)
95			cmd.append("=ALL");
96
97			string result = Command(cmd);
98
99			vector<SMS> retval;
100			if (result.find(search) == string::npos)
101			return retval;
102
103			result = result.substr(2, result.length() - 8); //remove trailing "\r\nOK\r\n" and initial "\r\n"
104
105
106			while ( 1 )
107			{
108			unsigned int endpos = result.find(search,5);
109
110
111			string sms_entry = result.substr(0,endpos);
112			retval.push_back( SMS::FromRawString(sms_entry) );;
113
114			if (endpos == string::npos)
115			break;
116
117			result = result.substr(endpos, result.length() - endpos);
118			}
119
120			return retval;
121			}
122
123			void GsmModem::SendSms(string to, string message)
124			{
125			Common::instance()->logMessage( string("SMS send to ") + to);
126
127			Command("AT+CMGF=1");///Allways telling the format makes the application more stable
128			Util::Sleep(2);
129
130			string line1 = "AT+CMGS=";
131			line1.append(to);
132			line1.append("\r");
133
134			Command(line1,"> ");
135
136	torben	50	if (message.length() > 160)
137			{
138			message = message.substr(0,160);
139			Common::instance()->logMessage( "Trunkating message! ");
140			}
141	torben	26
142	torben	34	message.append("\032"); // \032 == Ctrl+Z
143	torben	26
144	torben	50	Command( message ); //In textmode limit to 160 bytes
145	torben	49
146
147	torben	26	Util::Sleep(50); //Give the modem some time to send the sms and be ready again
148	torben	36	Common::instance()->smsCounter.outgoing++;
149	torben	26	}
150
151			void GsmModem::DeleteSms(std::string smsIndex)
152			{
153			string cmd = "AT+CMGD=";
154			cmd.append(smsIndex);
155			Command(cmd);
156			}
157
158			int GsmModem::DeleteAllSms()
159			{
160			vector<SMS> sms = ReadSms(true);
161
162			for (unsigned int i= 0; i<sms.size(); ++i)
163			{
164			DeleteSms( sms[i].sms_index);
165			}
166			return sms.size();
167			}
168
169
170
171			void GsmModem::Init()
172			{
173			Command( "ATZ" ); //Reset any previous setup
174	torben	57	if (_timeout)
175			throw std::runtime_error("Modem did not respond!");
176
177	torben	33	Command( "AT\\Q3" ); //Hardware flow control
178	torben	26
179			Command( "ATE0" ); //Disable echo
180
181			Command( "AT+CMGF=1" ); //Set SMS format to text
182
183			Command ("AT^SM20=0,0" ); //No SM20 compability
184
185			//Set RealTimeClock ??
186
187			//Enter pin code ??
188			}