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sendmail.c
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sendmail.c
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/*----------------------------------------------------------------------------
Copyright: Radig Ulrich mailto: [email protected]
Author: Radig Ulrich
Remarks:
known Problems: none
Version: 20.04.2008
Description: Send MAIL Client
Dieses Programm ist freie Software. Sie können es unter den Bedingungen der
GNU General Public License, wie von der Free Software Foundation veröffentlicht,
weitergeben und/oder modifizieren, entweder gemäß Version 2 der Lizenz oder
(nach Ihrer Option) jeder späteren Version.
Die Veröffentlichung dieses Programms erfolgt in der Hoffnung,
daß es Ihnen von Nutzen sein wird, aber OHNE IRGENDEINE GARANTIE,
sogar ohne die implizite Garantie der MARKTREIFE oder der VERWENDBARKEIT
FÜR EINEN BESTIMMTEN ZWECK. Details finden Sie in der GNU General Public License.
Sie sollten eine Kopie der GNU General Public License zusammen mit diesem
Programm erhalten haben.
Falls nicht, schreiben Sie an die Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
------------------------------------------------------------------------------*/
#include "sendmail.h"
#if USE_MAIL
PROGMEM char const SMTP_HELO[] = "HELO ETH_M32_EX\r\n";
PROGMEM char const SMTP_AUTH[] = "AUTH LOGIN\r\n";
PROGMEM char const SMTP_RSET[] = "RSET\r\n";
PROGMEM char const SMTP_MAIL[] = "MAIL FROM:<"__SMTP_MAIL_FROM__">\r\n";
PROGMEM char const SMTP_RCPT[] = "RCPT TO:<"__SMTP_MAIL_TO__">\r\n"; // hier user eintragen, an den die mail gehen soll
PROGMEM char const SMTP_DATA[] = "DATA\r\n";
PROGMEM char const SMTP_TEXT[] = "From: \"ETH_M32_EX\" <"__SMTP_MAIL_FROM__">\r\nSubject: Test_EMail!\r\n\r\nHallo\r\nGruss Uli.";
PROGMEM char const SMTP_END[] = "\r\n.\r\n";
PROGMEM char const SMTP_QUIT[] = "QUIT\r\n";
unsigned char mail_enable = 0;
unsigned int my_mail_cp = 0;
unsigned char mail_get = 0;
//----------------------------------------------------------------------------
//Email Client Init
void mail_client_init (void)
{
//Eintragen des E-Mail Client Ports (1543)
my_mail_cp = 1545;
add_tcp_app (my_mail_cp, (void(*)(unsigned char))mail_data);
}
//----------------------------------------------------------------------------
//Daten kommen vom EMAIL- Server an!! (Mail wird versendet)
void mail_data (unsigned char index)
{
//Verbindung wurde abgebaut!
if (tcp_entry[index].status & FIN_FLAG)
{
return;
}
if (mail_get)
{
unsigned char mail_auth_str[35];
unsigned int message_code = 0;
message_code = atol((char*)ð_buffer[TCP_DATA_START_VAR]);
if (message_code == 503 && mail_send_counter == 2)//Fehler 503 (authentication not enabled) abfangen und sofort ohne AUTH senden
{
mail_send_counter = 4;
message_code = 235;
}
if (message_code >= 500 || message_code == 451)
{
MAIL_DEBUG("\r\n\r\n*** Error: Mail wurde nicht versendet ***\r\n");
MAIL_DEBUG("(Message Code: %i)\r\n",message_code);
mail_get = 0;
tcp_entry[index].time = TCP_TIME_OFF;
return;
}
if (message_code != 0)
{
for (int a = TCP_DATA_START_VAR;a < TCP_DATA_END_VAR;a++)
{
MAIL_DEBUG("%c",eth_buffer[a]);
}
}
switch (mail_send_counter)
{
case 0:
if (message_code == 220)
{
MAIL_DEBUG("0: SMTP_HELO\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_HELO,sizeof(SMTP_HELO));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_HELO)-1,index);
mail_send_counter++;
}
break;
case 1:
if (message_code == 250)
{
MAIL_DEBUG("1: SMTP_AUTH\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_AUTH,sizeof(SMTP_AUTH));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_AUTH)-1,index);
mail_send_counter++;
}
break;
case 2:
if (message_code == 334)
{
MAIL_DEBUG("2: Send Username: ");
decode_base64((unsigned char*)SMTP_USERNAME,mail_auth_str);
MAIL_DEBUG("%s",mail_auth_str);
MAIL_DEBUG("\r\n");
memcpy(ð_buffer[TCP_DATA_START_VAR],mail_auth_str,sizeof(mail_auth_str));
memcpy_P(ð_buffer[TCP_DATA_START_VAR+sizeof(mail_auth_str)-1],PSTR("\r\n"),2);
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(mail_auth_str)+1,index);
mail_send_counter++;
}
break;
case 3:
if (message_code == 334)
{
MAIL_DEBUG("3: Send Password: ");
decode_base64((unsigned char*)SMTP_PASSWORD,mail_auth_str);
MAIL_DEBUG("%s",mail_auth_str);
MAIL_DEBUG("\r\n");
memcpy(ð_buffer[TCP_DATA_START_VAR],mail_auth_str,sizeof(mail_auth_str));
memcpy_P(ð_buffer[TCP_DATA_START_VAR+sizeof(mail_auth_str)-1],PSTR("\r\n"),2);
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(mail_auth_str)+1,index);
mail_send_counter++;
}
break;
case 4:
if (message_code == 235)
{
MAIL_DEBUG("4: SMTP_MAIL_FROM\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_MAIL,sizeof(SMTP_MAIL));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_MAIL)-1,index);
mail_send_counter++;
}
break;
case 5:
if (message_code == 250)
{
MAIL_DEBUG("5: SMTP_MAIL_RCPT_TO\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_RCPT,sizeof(SMTP_RCPT));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_RCPT)-1,index);
mail_send_counter++;
}
break;
case 6:
if (message_code == 250)
{
MAIL_DEBUG("6: SMTP_MAIL_DATA\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_DATA,sizeof(SMTP_DATA));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_DATA)-1,index);
mail_send_counter++;
}
break;
case 7:
if (message_code == 354)
{
MAIL_DEBUG("7: SMTP_MAIL_TEXT\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_TEXT,sizeof(SMTP_TEXT));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_TEXT)-1,index);
mail_send_counter++;
}
break;
case 8:
MAIL_DEBUG("8: SMTP_MAIL_END\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_END,sizeof(SMTP_END));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_END)-1,index);
mail_send_counter++;
break;
case 9:
if (message_code == 250)
{
MAIL_DEBUG("9: SMTP_MAIL_QUIT\n\r");
memcpy_P(ð_buffer[TCP_DATA_START_VAR],SMTP_QUIT,sizeof(SMTP_QUIT));
tcp_entry[index].status = ACK_FLAG | PSH_FLAG;
create_new_tcp_packet(sizeof(SMTP_QUIT)-1,index);
mail_send_counter++;
}
break;
case 10:
MAIL_DEBUG("\r\n10: Mail wurde versendet!!\r\n");
mail_get = 0;
}
tcp_entry[index].time = TCP_TIME_OFF;
}
}
//----------------------------------------------------------------------------
//Versenden einer E-MAIL starten
unsigned char mail_send (void)
{
if(mail_get == 0) //Falls nicht derzeit bereits eine Mail gesendet wird
{
//öffnet eine Verbindung zu einem EMAIL-Server
MAIL_DEBUG("Send E-Mail (Sie haben Post ;-)\n\r");
unsigned int my_mail_cp_new = my_mail_cp + time;
if (my_mail_cp_new < 1000) my_mail_cp_new +=1000;
change_port_tcp_app (my_mail_cp, my_mail_cp_new);
my_mail_cp = my_mail_cp_new;
//ARP Request senden
if (arp_request (MAIL_SERVER))
{
for(unsigned long a=0;a<2000000;a++){asm("nop");};
MAIL_DEBUG("Mail empfang am Clientport (%i)",my_mail_cp);
tcp_port_open (MAIL_SERVER,LBBL_ENDIAN_INT(MAIL_PORT),LBBL_ENDIAN_INT(my_mail_cp));
mail_send_counter = 0;
mail_get = 1;
unsigned long index = MAX_ARP_ENTRY;
unsigned char tmp_counter = 0;
while((index >= MAX_ARP_ENTRY) && (tcp_entry[index].app_status != 1))
{
index = tcp_entry_search (MAIL_SERVER,LBBL_ENDIAN_INT(MAIL_PORT));
if (tmp_counter++ > 30)
{
MAIL_DEBUG("TCP Eintrag nicht gefunden (Mailserver)\r\n");
return 0;
}
}
MAIL_DEBUG("TCP Eintrag gefunden (Mailserver)!\r\n");
}
}
else
{
return 0;
}
return 1;
}
#endif //USE_MAIL