* Holy war on strlen: use IsEmptyStr where apropriate.
[citadel.git] / citadel / citmail.c
index 00e6f9165d4d2213d2dcc6c5f1c172cee9363a5b..f5c8da25de62385fb8de5fcc04c85a795b1dea23 100644 (file)
@@ -2,7 +2,7 @@
  * $Id$
  *
  * This program attempts to act like a local MDA if you're using sendmail or
- * some other non-Citadel MTA.  It basically just contacts the Citadel SMTP
+ * some other non-Citadel MTA.  It basically just contacts the Citadel LMTP
  * listener on a unix domain socket and transmits the message.
  *
  */
 #include <stdarg.h>
 #include <limits.h>
 #include "citadel.h"
+#include "tools.h"
 #ifndef HAVE_SNPRINTF
 #include "snprintf.h"
 #endif
-#include "config.h"
-
-/* #define DEBUG  */   /* uncomment to get protocol traces */
+#include "citadel_dirs.h"
 
 int serv_sock;
-
+int debug = 0;
 
 void strip_trailing_nonprint(char *buf)
 {
-        while ( (strlen(buf)>0) && (!isprint(buf[strlen(buf) - 1])) )
+        while ( (!IsEmptyStr(buf)) && (!isprint(buf[strlen(buf) - 1])) )
                 buf[strlen(buf) - 1] = 0;
 }
 
@@ -135,9 +134,7 @@ void serv_gets(char *buf)
         */
        buf[i] = 0;
        strip_trailing_nonprint(buf);
-#ifdef DEBUG
-       printf("> %s\n", buf);
-#endif
+       if (debug) fprintf(stderr, "> %s\n", buf);
 }
 
 
@@ -146,20 +143,19 @@ void serv_gets(char *buf)
  */
 void serv_puts(char *buf)
 {
-#ifdef DEBUG
-       printf("< %s\n", buf);
-#endif
+       if (debug) fprintf(stderr, "< %s\n", buf);
        serv_write(buf, strlen(buf));
        serv_write("\n", 1);
 }
 
 
 
-
-
 void cleanup(int exitcode) {
        char buf[1024];
 
+       if (exitcode != 0) {
+               fprintf(stderr, "Error while sending mail.  Please check your Citadel configuration.\n");
+       }
        serv_puts("QUIT");
        serv_gets(buf);
        exit(exitcode);
@@ -170,42 +166,137 @@ void cleanup(int exitcode) {
 int main(int argc, char **argv) {
        char buf[1024];
        char fromline[1024];
-       char tempfilename[SIZ];
        FILE *fp;
+       int i;
+       struct passwd *pw;
+       int from_header = 0;
+       int in_body = 0;
+       int relh=0;
+       int home=0;
+       char relhome[PATH_MAX]="";
+       char ctdldir[PATH_MAX]=CTDLDIR;
+       char *sp, *ep;
+       char hostname[256];
+       char **recipients = NULL;
+       int num_recipients = 0;
+       int to_or_cc = 0;
+       int read_recipients_from_headers = 0;
+       char *add_these_recipients = NULL;
+
+       for (i=1; i<argc; ++i) {
+               if (!strcmp(argv[i], "-d")) {
+                       debug = 1;
+               }
+               else if (!strcmp(argv[i], "-t")) {
+                       read_recipients_from_headers = 1;
+               }
+               else if (argv[i][0] != '-') {
+                       ++num_recipients;
+                       recipients = realloc(recipients, (num_recipients * sizeof (char *)));
+                       recipients[num_recipients - 1] = strdup(argv[i]);
+               }
+       }
+              
+       /* TODO: should we be able to calculate relative dirs? */
+       calc_dirs_n_files(relh, home, relhome, ctdldir);
 
-       get_config();
+       pw = getpwuid(getuid());
 
-       sprintf(tempfilename, "/tmp/citmail.%04x.%04x",
-               (int)time(NULL),
-               (int)getpid()
-       );
-       fp = fopen(tempfilename, "w+b");
-       unlink(tempfilename);
+       fp = tmpfile();
        if (fp == NULL) return(errno);
-       snprintf(fromline, sizeof fromline, "From: someone@somewhere.org");
+       serv_sock = uds_connectsock(file_lmtp_socket);  /* FIXME: if called as 'sendmail' connect to file_lmtp_unfiltered_socket */
+       serv_gets(buf);
+       if (buf[0] != '2') {
+               if (debug) fprintf(stderr, "Could not connect to LMTP socket.\n");
+               cleanup(1);
+       }
+
+       sp = strchr (buf, ' ');
+       if (sp == NULL) {
+               if (debug) fprintf(stderr, "Could not calculate hostname.\n");
+               cleanup(1);
+       }
+       sp ++;
+       ep = strchr (sp, ' ');
+       if (ep == NULL) cleanup(1);
+       *ep = '\0';
+       strncpy(hostname, sp, sizeof hostname);
+
+       snprintf(fromline, sizeof fromline, "From: %s@%s", pw->pw_name, hostname);
        while (fgets(buf, 1024, stdin) != NULL) {
+               if ( ( (buf[0] == 13) || (buf[0] == 10)) && (in_body == 0) ) {
+                       in_body = 1;
+                       if (from_header == 0) {
+                               fprintf(fp, "%s%s", fromline, buf);
+                       }
+               }
+               if (!strncasecmp(buf, "From:", 5)) {
+                       strcpy(fromline, buf);
+                       if (in_body == 0) {
+                               from_header = 1;
+                       }
+               }
+
+               if (read_recipients_from_headers) {
+                       add_these_recipients = NULL;
+                       if ((isspace(buf[0])) && (to_or_cc)) {
+                               add_these_recipients = buf;
+                       }
+                       else {
+                               if ((!strncasecmp(buf, "To:", 3)) || (!strncasecmp(buf, "Cc:", 3))) {
+                                       to_or_cc = 1;
+                               }
+                               else {
+                                       to_or_cc = 0;
+                               }
+                               if (to_or_cc) {
+                                       add_these_recipients = &buf[3];
+                               }
+                       }
+
+                       if (add_these_recipients) {
+                               int num_recp_on_this_line;
+                               char this_recp[256];
+
+                               num_recp_on_this_line = num_tokens(add_these_recipients, ',');
+                               for (i=0; i<num_recp_on_this_line; ++i) {
+                                       extract_token(this_recp, add_these_recipients,
+                                               i, ',', sizeof this_recp);
+                                       striplt(this_recp);
+                                       if (!IsEmptyStr(this_recp)) {
+                                               ++num_recipients;
+                                               recipients = realloc(recipients,
+                                                       (num_recipients * sizeof (char *)));
+                                               recipients[num_recipients - 1] = strdup(this_recp);
+                                       }
+                               }
+                       }
+               }
+
                fprintf(fp, "%s", buf);
-               if (!strncasecmp(buf, "From:", 5)) strcpy(fromline, buf);
        }
        strip_trailing_nonprint(fromline);
 
-       serv_sock = uds_connectsock("smtp.socket");
-       serv_gets(buf);
-       if (buf[0]!='2') cleanup(1);
-
-       serv_puts("HELO localhost");
-       serv_gets(buf);
-       if (buf[0]!='2') cleanup(1);
+       sprintf(buf, "LHLO %s", hostname);
+       serv_puts(buf);
+       do {
+               serv_gets(buf);
+               strcat(buf, "    ");
+       } while (buf[3] == '-');
+       if (buf[0] != '2') cleanup(1);
 
        snprintf(buf, sizeof buf, "MAIL %s", fromline);
        serv_puts(buf);
        serv_gets(buf);
-       if (buf[0]!='2') cleanup(1);
+       if (buf[0] != '2') cleanup(1);
 
-       snprintf(buf, sizeof buf, "RCPT To: %s", argv[1]);
-       serv_puts(buf);
-       serv_gets(buf);
-       if (buf[0]!='2') cleanup(1);
+       for (i=0; i<num_recipients; ++i) {
+               snprintf(buf, sizeof buf, "RCPT To: %s", recipients[i]);
+               serv_puts(buf);
+               serv_gets(buf);
+               free(recipients[i]);
+       }
+       free(recipients);
 
        serv_puts("DATA");
        serv_gets(buf);
@@ -218,7 +309,16 @@ int main(int argc, char **argv) {
        }
        serv_puts(".");
        serv_gets(buf);
-       if (buf[0]!='2') cleanup(1);
-       else cleanup(0);
+       if (buf[0] != '2') {
+               cleanup(1);
+       }
+       else {
+               cleanup(0);
+       }
+
+       /* We won't actually reach this statement but the compiler will
+        * display a spurious warning about an invalid return type if
+        * we don't return an int.
+        */
        return(0);
 }