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)
{
        Init();
}


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);

        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);
            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,"> ");


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

        Command( message.substr(0,160) ); //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
        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			Init();
30			}
31
32
33
34			string GsmModem::GetResponse()
35			{
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	26	string GsmModem::Command(string command, string term)
49			{
50			time_t start,now;
51			start = time(0);
52
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			break;
78			}
79			}
80
81			Util::Sleep(5);
82
83			// cout << response.length() << ":" << response << endl;
84			// DumpString(response);
85
86			return response;
87			}
88
89			vector<SMS> GsmModem::ReadSms(bool readAll)
90			{
91			const string search = "+CMGL: ";
92			std::string cmd = "AT+CMGL";
93			if (readAll)
94			cmd.append("=ALL");
95
96			string result = Command(cmd);
97
98			vector<SMS> retval;
99			if (result.find(search) == string::npos)
100			return retval;
101
102			result = result.substr(2, result.length() - 8); //remove trailing "\r\nOK\r\n" and initial "\r\n"
103
104
105			while ( 1 )
106			{
107			unsigned int endpos = result.find(search,5);
108
109
110			string sms_entry = result.substr(0,endpos);
111			retval.push_back( SMS::FromRawString(sms_entry) );;
112
113			if (endpos == string::npos)
114			break;
115
116			result = result.substr(endpos, result.length() - endpos);
117			}
118
119			return retval;
120			}
121
122			void GsmModem::SendSms(string to, string message)
123			{
124			Common::instance()->logMessage( string("SMS send to ") + to);
125
126			Command("AT+CMGF=1");///Allways telling the format makes the application more stable
127			Util::Sleep(2);
128
129			string line1 = "AT+CMGS=";
130			line1.append(to);
131			line1.append("\r");
132
133			Command(line1,"> ");
134
135
136	torben	34	message.append("\032"); // \032 == Ctrl+Z
137	torben	26
138	torben	49	Command( message.substr(0,160) ); //In textmode limit to 160 bytes
139
140
141	torben	26	Util::Sleep(50); //Give the modem some time to send the sms and be ready again
142	torben	36	Common::instance()->smsCounter.outgoing++;
143	torben	26	}
144
145			void GsmModem::DeleteSms(std::string smsIndex)
146			{
147			string cmd = "AT+CMGD=";
148			cmd.append(smsIndex);
149			Command(cmd);
150			}
151
152			int GsmModem::DeleteAllSms()
153			{
154			vector<SMS> sms = ReadSms(true);
155
156			for (unsigned int i= 0; i<sms.size(); ++i)
157			{
158			DeleteSms( sms[i].sms_index);
159			}
160			return sms.size();
161			}
162
163
164
165			void GsmModem::Init()
166			{
167			Command( "ATZ" ); //Reset any previous setup
168	torben	33	Command( "AT\\Q3" ); //Hardware flow control
169	torben	26
170			Command( "ATE0" ); //Disable echo
171
172			Command( "AT+CMGF=1" ); //Set SMS format to text
173
174			Command ("AT^SM20=0,0" ); //No SM20 compability
175
176			//Set RealTimeClock ??
177
178			//Enter pin code ??
179			}