2 * Citadel/UX message support routines
3 * see copyright.txt for copyright information
22 #define MAXWORDBUF 256
27 char text[MAXWORDBUF];
31 struct AttachedFile *next;
35 void sttybbs(int cmd);
36 int struncmp(char *lstr, char *rstr, int len);
37 int fmout(int width, FILE *fp, char pagin, int height, int starting_lp, char subst);
38 int haschar(char *st, int ch);
39 int checkpagin(int lp, int pagin, int height);
40 void getline(char *string, int lim);
41 void formout(char *name);
43 void newprompt(char *prompt, char *str, int len);
44 int file_checksum(char *filename);
45 void color(int colornum);
46 void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
49 long msg_arr[MAXMSGS];
51 extern char room_name[];
52 extern unsigned room_flags;
53 extern long highest_msg_read;
54 extern struct CtdlServInfo serv_info;
57 extern int screenwidth;
58 extern int screenheight;
59 extern long maxmsgnum;
62 extern char is_room_aide;
63 extern char fullname[];
65 extern unsigned userflags;
66 extern char sigcaught;
67 extern char editor_path[];
68 extern char printcmd[];
69 extern int rc_allow_attachments;
70 extern int rc_display_message_numbers;
71 extern int rc_force_mail_prompts;
73 extern int editor_pid;
77 void ka_sigcatch(int signum) {
80 signal(SIGALRM, ka_sigcatch);
87 * server keep-alive version of wait() (needed for external editor)
89 pid_t ka_wait(pid_t *kstatus)
94 signal(SIGALRM, ka_sigcatch);
98 } while (errno==EINTR);
99 signal(SIGALRM,SIG_IGN);
106 * version of system() that uses ka_wait()
108 int ka_system(char *shc)
117 perror("Cannot fork");
119 return((pid_t)childpid);
123 execlp("/bin/sh","sh","-c",shc,NULL);
129 waitpid = ka_wait(&retcode);
130 } while (waitpid != childpid);
140 * add a newline to the buffer...
142 void add_newline(struct cittext *textlist)
147 while (ptr->next != NULL) ptr = ptr->next;
149 while (ptr->text[strlen(ptr->text)-1]==32)
150 ptr->text[strlen(ptr->text)-1] = 0;
151 /* strcat(ptr->text,"\n"); */
153 ptr->next = (struct cittext *)
154 malloc(sizeof(struct cittext));
157 strcpy(ptr->text,"");
162 * add a word to the buffer...
164 void add_word(struct cittext *textlist, char *wordbuf)
170 while (ptr->next != NULL) ptr = ptr->next;
172 if (3+strlen(ptr->text)+strlen(wordbuf) > screenwidth) {
173 ptr->next = (struct cittext *)
174 malloc(sizeof(struct cittext));
177 strcpy(ptr->text,"");
180 strcat(ptr->text,wordbuf);
181 strcat(ptr->text," ");
186 * begin editing of an opened file pointed to by fp, beginning at position pos.
188 void citedit(FILE *fp, long int base_pos)
190 int a,prev,finished,b,last_space;
192 struct cittext *textlist = NULL;
194 char wordbuf[MAXWORDBUF];
196 time_t last_server_msg,now;
199 * we're going to keep track of the last time we talked to
200 * the server, so we can periodically send keep-alive messages
201 * out so it doesn't time out.
203 time(&last_server_msg);
205 /* first, load the text into the buffer */
206 fseek(fp,base_pos,0);
207 textlist = (struct cittext *)malloc(sizeof(struct cittext));
208 textlist->next = NULL;
209 strcpy(textlist->text,"");
213 while (a=getc(fp), a>=0) {
215 if ((a==32)||(a==9)||(a==13)||(a==10)) {
216 add_word(textlist,wordbuf);
218 if ((prev==13)||(prev==10)) {
219 add_word(textlist,"\n");
220 add_newline(textlist);
221 add_word(textlist,"");
225 wordbuf[strlen(wordbuf)+1] = 0;
226 wordbuf[strlen(wordbuf)] = a;
228 if (strlen(wordbuf)+3 > screenwidth) {
229 add_word(textlist,wordbuf);
237 prev = (appending ? 13 : (-1));
244 if ((a==32)&&(prev==13)) {
245 add_word(textlist,"\n");
246 add_newline(textlist);
249 if (strlen(wordbuf)>0) {
250 wordbuf[strlen(wordbuf)-1] = 0;
258 if (strlen(wordbuf)==0) finished = 1;
260 for (b=0; b<strlen(wordbuf); ++b)
261 if (wordbuf[b]==32) {
263 add_word(textlist,wordbuf);
264 strcpy(wordbuf,&wordbuf[b+1]);
267 add_word(textlist,wordbuf);
273 wordbuf[strlen(wordbuf)+1] = 0;
274 wordbuf[strlen(wordbuf)] = a;
276 if ((strlen(wordbuf)+3) > screenwidth) {
278 for (b=0; b<strlen(wordbuf); ++b)
279 if (wordbuf[b]==32) last_space = b;
281 for (b=0; b<strlen(wordbuf); ++b)
282 if (wordbuf[b]==32) {
284 add_word(textlist,wordbuf);
285 strcpy(wordbuf,&wordbuf[b+1]);
288 for (b=0; b<strlen(wordbuf); ++b) {
293 printf("\n%s",wordbuf);
296 add_word(textlist,wordbuf);
303 /* this check implements the server keep-alive */
305 if ( (now - last_server_msg) > S_KEEPALIVE ) {
308 last_server_msg = now;
311 } while (finished==0);
313 /* write the buffer back to disk */
314 fseek(fp,base_pos,0);
315 for (ptr=textlist; ptr!=NULL; ptr=ptr->next) {
316 fprintf(fp,"%s",ptr->text);
321 /* and deallocate the memory we used */
322 while (textlist!=NULL) {
330 int read_message(long int num, char pagin) /* Read a message from the server */
332 /* 0 = normal read, 1 = read with pagination, 2 = header */
346 sprintf(buf,"MSG0 %ld|%d",num,(pagin==READ_HEADER ? 1 : 0));
350 printf("*** msg #%ld: %s\n",num,buf);
352 lines_printed = checkpagin(lines_printed,pagin,screenheight);
357 strcpy(m_subject,"");
360 lines_printed = checkpagin(lines_printed,pagin,screenheight);
362 if (pagin == 1) color(3);
365 while(serv_gets(buf), strcmp(buf,"000")) {
370 checkpagin(lines_printed,
378 strcpy(reply_to,"nobody...xxxxx");
379 while(serv_gets(buf), struncmp(buf,"text",4)) {
380 if (!struncmp(buf,"nhdr=yes",8)) nhdr=1;
381 if (!struncmp(buf,"from=",5)) {
382 strcpy(from,&buf[5]);
384 if (nhdr==1) buf[0]='_';
385 if (!struncmp(buf,"type=",5))
386 format_type=atoi(&buf[5]);
387 if ((!struncmp(buf,"msgn=",5))&&(rc_display_message_numbers)) {
389 printf("[#%s] ",&buf[5]);
391 if (!struncmp(buf,"from=",5)) {
393 printf("from %s ",&buf[5]);
395 if (!struncmp(buf,"subj=",5))
396 strcpy(m_subject,&buf[5]);
397 if ((!struncmp(buf,"hnod=",5))
398 && (strucmp(&buf[5],serv_info.serv_humannode))) {
400 printf("(%s) ",&buf[5]);
402 if ((!struncmp(buf,"room=",5))
403 && (strucmp(&buf[5],room_name))) {
405 printf("in %s> ",&buf[5]);
408 if (!struncmp(buf,"node=",5)) {
409 if ( (room_flags&QR_NETWORK)
410 || ((strucmp(&buf[5],serv_info.serv_nodename)
411 &&(strucmp(&buf[5],serv_info.serv_fqdn)))))
414 printf("@%s ",&buf[5]);
416 if ((!strucmp(&buf[5],serv_info.serv_nodename))
417 ||(!strucmp(&buf[5],serv_info.serv_fqdn)))
419 strcpy(reply_to,from);
422 sprintf(reply_to,"%s @ %s",from,&buf[5]);
426 if (!struncmp(buf,"rcpt=",5)) {
428 printf("to %s ",&buf[5]);
430 if (!struncmp(buf,"time=",5)) {
432 tm=(struct tm *)localtime(&now);
433 strcpy(buf,asctime(tm)); buf[strlen(buf)-1]=0;
434 strcpy(&buf[16],&buf[19]);
436 printf("%s ",&buf[4]);
449 if (pagin == 1 ) color(2);
451 lines_printed = checkpagin(lines_printed,pagin,screenheight);
453 if (strlen(m_subject)>0) {
454 printf("Subject: %s\n",m_subject);
456 lines_printed = checkpagin(lines_printed,pagin,screenheight);
459 if (format_type == 0) {
460 fr=fmout(screenwidth,NULL,
461 ((pagin==1) ? 1 : 0),
462 screenheight,(-1),1);
465 while(serv_gets(buf), strcmp(buf,"000")) {
468 lines_printed = lines_printed + 1 +
469 (strlen(buf)/screenwidth);
471 checkpagin(lines_printed,pagin,screenheight);
478 lines_printed = checkpagin(lines_printed,pagin,screenheight);
480 if (pagin == 1) color(7);
486 * replace string function for the built-in editor
488 void replace_string(char *filename, long int startpos)
497 int substitutions = 0;
500 printf("Enter text to be replaced:\n: ");
501 getline(srch_str,128);
502 if (strlen(srch_str)==0) return;
504 printf("Enter text to replace it with:\n: ");
505 getline(rplc_str,128);
507 fp=fopen(filename,"r+");
508 if (fp==NULL) return;
511 fseek(fp,startpos,0);
513 while (a=getc(fp), a>0) {
515 buf[strlen(buf)+1] = 0;
516 buf[strlen(buf)] = a;
517 if ( strlen(buf) >= strlen(srch_str) ) {
518 ptr=&buf[strlen(buf)-strlen(srch_str)];
519 if (!struncmp(ptr,srch_str,strlen(srch_str))) {
520 strcpy(ptr,rplc_str);
524 if (strlen(buf)>384) {
527 fwrite((char *)buf,128,1,fp);
528 strcpy(buf,&buf[128]);
534 if (strlen(buf)>0) fwrite((char *)buf,strlen(buf),1,fp);
537 printf("<R>eplace made %d substitution(s).\n\n",substitutions);
541 int make_message(char *filename, char *recipient, int anon_type, int format_type, int mode, char *boundary)
542 /* temporary file name */
543 /* NULL if it's not mail */
544 /* see MES_ types in header file */
554 struct AttachedFile *AttachList = NULL;
555 struct AttachedFile *Aptr;
558 if (mode==2) if (strlen(editor_path)==0) {
559 printf("*** No editor available, using built-in editor\n");
564 strcpy(datestr,asctime(localtime(&now)));
565 datestr[strlen(datestr)-1] = 0;
567 if (room_flags & QR_ANONONLY) {
571 printf(" %s from %s",datestr,fullname);
572 if (strlen(recipient)>0) printf(" to %s",recipient);
578 if (mode==1) printf("(Press ctrl-d when finished)\n");
580 fp=fopen(filename,"r");
582 fmout(screenwidth,fp,0,screenheight,0,0);
587 fp=fopen(filename,"w");
595 fp=fopen(filename,"r+");
602 fp=fopen(filename,"w");
604 a=inkey(); if (a==255) a=32;
610 if (a==10) putc(13,stdout);
616 e_ex_code = 1; /* start with a failed exit code */
618 cksum = file_checksum(filename);
620 chmod(filename,0600);
622 execlp(editor_path,editor_path,filename,NULL);
625 if (editor_pid>0) do {
627 b=ka_wait(&e_ex_code);
628 } while((b!=editor_pid)&&(b>=0));
635 if (file_checksum(filename) == cksum) {
636 printf("*** Aborted message.\n");
639 if (e_ex_code==0) goto MEFIN;
642 MECR1: printf("Entry cmd (? for options) -> ");
644 if (b==NEXT_KEY) b='n';
645 if (b==STOP_KEY) b='s';
646 b=(b&127); b=tolower(b);
652 if (b=='a') { printf("Abort\n"); goto MEABT; }
653 if (b=='c') { printf("Continue\n"); goto ME1; }
654 if (b=='s') { printf("Save message\n"); goto MEFIN; }
656 printf("Print formatted\n");
657 printf(" %s from %s",datestr,fullname);
658 if (strlen(recipient)>0) printf(" to %s",recipient);
660 fp=fopen(filename,"r");
662 fmout(screenwidth,fp,
663 ((userflags & US_PAGINATOR) ? 1 : 0),
671 printf("Replace string\n");
672 replace_string(filename,0L);
676 printf("Hold message\n");
679 if ((b=='f')&&(rc_allow_attachments==1)) {
680 printf("attach File\n");
681 if (strlen(boundary)==0) {
682 sprintf(boundary, "Citadel-Attachment-%ld.%d",
683 (long)time(NULL), getpid() );
685 newprompt("Filename: ", buf, 68);
686 if (access(buf, R_OK)==0) {
687 Aptr = (struct AttachedFile *)
688 malloc(sizeof(struct AttachedFile));
689 strcpy(Aptr->filename, buf);
690 Aptr->next = AttachList;
694 printf("*** Cannot open %s: %s\n",
695 buf, strerror(errno));
701 MEFIN: /* Now we're done typing the message. Before returning, append any
702 * attachments the user has selected
704 if (strlen(boundary)==0) goto SKIPAT;
705 fp = fopen(filename, "a");
706 while (AttachList != NULL) {
707 sprintf(buf, "uuencode %s <%s",
708 AttachList->filename, AttachList->filename);
709 atpipe = popen(buf, "r");
710 if (atpipe != NULL) {
711 fprintf(fp,"--%s\n", boundary);
712 fprintf(fp,"Content-type: application/octet-stream;\n");
713 fprintf(fp,"%cname=%c%s%c\n",
714 9, 34, AttachList->filename, 34);
715 fprintf(fp,"Content-Transfer-Encoding: x-uudecode\n");
716 fprintf(fp,"Content-Disposition: attachment;\n");
717 fprintf(fp,"%cfilename=%c%s%c\n\n",
718 9, 34, AttachList->filename, 34);
719 while (fgets(buf, 256, atpipe)!=NULL) {
720 buf[strlen(buf)-1]=0;
721 fprintf(fp, "%s\n", buf);
726 printf("*** Cannot open %s: %s\n",
727 AttachList->filename, strerror(errno));
729 Aptr = AttachList->next;
733 fprintf(fp, "--%s--\n", boundary); /* end of attachments */
738 MEABT: printf("Are you sure? ");
739 if (yesno()==0) goto ME1;
740 MEABT2: unlink(filename);
745 * transmit message text to the server
747 void transmit_message(FILE *fp)
753 while (ch=getc(fp), (ch>=0)) {
755 if (!strcmp(buf,"000")) strcpy(buf,">000");
763 if ((ch==32)&&(strlen(buf)>200)) {
765 if (!strcmp(buf,"000")) strcpy(buf,">000");
769 if (strlen(buf)>250) {
770 if (!strcmp(buf,"000")) strcpy(buf,">000");
782 * entmsg() - edit and create a message
783 * returns 0 if message was saved
785 int entmsg(int is_reply, int c)
786 /* nonzero if this was a <R>eply command */
800 sprintf(cmd,"ENT0 0||0|%d",mode);
804 if ((strncmp(cmd,"570",3)) && (strncmp(cmd,"200",3))) {
805 printf("%s\n",&cmd[4]);
809 if (!strncmp(cmd,"570",3)) need_recp = 1;
811 if ((userflags & US_EXPERT) == 0) formout("entermsg");
817 strcpy(buf,reply_to);
820 printf("Enter recipient: ");
822 if (strlen(buf)==0) return(1);
825 else strcpy(buf,"sysop");
829 if (room_flags&QR_ANONOPT) {
830 printf("Anonymous (Y/N)? ");
834 /* if it's mail, we've got to check the validity of the recipient... */
836 sprintf(cmd,"ENT0 0|%s|%d|%d",buf,b,mode);
840 printf("%s\n",&cmd[4]);
845 /* learn the number of the newest message in in the room, so we can tell
846 * upon saving whether someone else has posted too
849 serv_puts("MSGS LAST|1");
852 printf("%s\n",&cmd[5]);
855 while (serv_gets(cmd), strcmp(cmd,"000")) {
856 msg_arr[num_msgs++] = atol(cmd);
860 /* now put together the message */
861 strcpy(boundary, "");
862 if ( make_message(temp,buf,b,0,c,boundary) != 0 ) return(2);
864 /* and send it to the server */
865 sprintf(cmd,"ENT0 1|%s|%d|%d||%s|",buf,b,mode,boundary);
869 printf("%s\n",&cmd[4]);
874 transmit_message(fp);
880 highmsg = msg_arr[num_msgs - 1];
882 serv_puts("MSGS NEW");
885 printf("%s\n",&cmd[5]);
888 while (serv_gets(cmd), strcmp(cmd,"000")) {
889 msg_arr[num_msgs++] = atol(cmd);
893 /* get new highest message number in room to set lrp for goto... */
894 maxmsgnum = msg_arr[num_msgs - 1];
896 /* now see if anyone else has posted in here */
898 for (a=0; a<num_msgs; ++a) if (msg_arr[a]>highmsg) ++b;
900 /* in the Mail> room, this algorithm always counts one message
901 * higher than in public rooms, so we decrement it by one */
905 "*** 1 additional message has been entered in this room by another user.\n");
907 "*** %d additional messages have been entered in this room by other users.\n",b);
912 void process_quote(void) { /* do editing on quoted file */
915 int line,qstart,qend;
917 /* Unlink the second temp file as soon as it's opened, so it'll get
918 * deleted even if the program dies
920 qfile = fopen(temp2,"r");
923 /* Display the quotable text with line numbers added */
925 fgets(buf,128,qfile);
926 while (fgets(buf,128,qfile)!=NULL) {
927 printf("%2d %s",++line,buf);
929 printf("Begin quoting at [ 1] : ");
931 qstart = (buf[0]==0) ? (1) : atoi(buf);
932 printf(" End quoting at [%d] : ",line);
934 qend = (buf[0]==0) ? (line) : atoi(buf);
937 fgets(buf,128,qfile);
938 tfile=fopen(temp,"w");
939 while(fgets(buf,128,qfile)!=NULL) {
940 if ((++line>=qstart)&&(line<=qend)) fprintf(tfile," >%s",buf);
942 fprintf(tfile," \n");
949 void readmsgs(int c, int rdir, int q) /* read contents of a room */
950 /* 0=Read all 1=Read new 2=Read old 3=Read last q */
951 /* 1=Forward (-1)=Reverse */
952 /* Number of msgs to read (if c==3) */
962 char targ[ROOMNAMELEN];
964 signal(SIGINT,SIG_IGN);
965 signal(SIGQUIT,SIG_IGN);
967 if (c<0) b=(MAXMSGS-1);
970 sprintf(prtfile,"/tmp/CPrt%d",getpid());
975 case 0: strcat(cmd,"ALL");
977 case 1: strcat(cmd,"NEW");
979 case 2: strcat(cmd,"OLD");
981 case 3: sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
987 printf("%s\n",&cmd[5]);
990 while (serv_gets(cmd), strcmp(cmd,"000")) {
991 msg_arr[num_msgs++] = atol(cmd);
997 /* this loop cycles through each message... */
998 start = ( (rdir==1) ? 0 : (num_msgs-1) );
999 for (a=start; ((a<num_msgs)&&(a>=0)); a=a+rdir) {
1000 while (msg_arr[a]==0L) {
1001 a=a+rdir; if ((a==MAXMSGS)||(a==(-1))) return;
1004 RAGAIN: pagin=((arcflag==0)&&(quotflag==0)&&
1005 (userflags & US_PAGINATOR)) ? 1 : 0;
1007 /* If we're doing a quote, set the screenwidth to 72 temporarily */
1009 hold_sw = screenwidth;
1013 /* If printing or archiving, set the screenwidth to 80 temporarily */
1015 hold_sw = screenwidth;
1019 /* now read the message... */
1020 e=read_message(msg_arr[a],pagin);
1022 /* ...and set the screenwidth back if we have to */
1023 if ((quotflag)||(arcflag)) {
1024 screenwidth = hold_sw;
1026 RMSGREAD: fflush(stdout);
1027 highest_msg_read = msg_arr[a];
1029 freopen("/dev/tty","r+",stdout);
1031 enable_color = hold_color;
1035 freopen("/dev/tty","r+",stdout);
1037 enable_color = hold_color;
1040 freopen(prtfile,"r",stdin);
1041 sttybbs(SB_RESTORE);
1042 ka_system(printcmd);
1043 sttybbs(SB_NO_INTR);
1049 } while((g!=f)&&(g>=0));
1050 printf("Message printed.\n");
1053 if ( ((userflags&US_NOPROMPT)||(e==2))
1054 && (((room_flags&QR_MAILBOX)==0)
1055 ||(rc_force_mail_prompts==0)) ) {
1059 printf("(%d) ",num_msgs-a-1);
1060 if (is_mail==1) printf("<R>eply ");
1061 if (strlen(printcmd)>0) printf("<P>rint ");
1062 printf("<B>ack <A>gain <Q>uote <H>eader <N>ext <S>top -> ");
1065 e=(inkey()&127); e=tolower(e);
1066 /* return key same as <N> */ if (e==13) e='n';
1067 /* space key same as <N> */ if (e==32) e='n';
1068 /* del/move for aides only */ if (!is_room_aide) if ((e=='d')||(e=='m')) e=0;
1069 /* print only if available */ if ((e=='p')&&(strlen(printcmd)==0)) e=0;
1070 /* can't move from Mail> */ if ((e=='m')&&(is_mail==1)) e=0;
1071 /* can't reply in public rms */ if ((e=='r')&&(is_mail!=1)) e=0;
1072 } while((e!='a')&&(e!='n')&&(e!='s')
1073 &&(e!='d')&&(e!='m')&&(e!='p')
1074 &&(e!='q')&&(e!='b')&&(e!='h')
1077 case 's': printf("Stop\r"); break;
1078 case 'a': printf("Again\r"); break;
1079 case 'd': printf("Delete\r"); break;
1080 case 'm': printf("Move\r"); break;
1081 case 'n': printf("Next\r"); break;
1082 case 'p': printf("Print\r"); break;
1083 case 'q': printf("Quote\r"); break;
1084 case 'b': printf("Back\r"); break;
1085 case 'h': printf("Header\r"); break;
1086 case 'r': printf("Reply\r"); break;
1088 if (userflags & US_DISAPPEAR)
1089 printf("%75s\r","");
1095 case 'p': fflush(stdout);
1096 freopen(prtfile,"w",stdout);
1098 hold_color = enable_color;
1101 case 'q': fflush(stdout);
1102 freopen(temp2,"w",stdout);
1104 hold_color = enable_color;
1108 case 'a': goto RAGAIN;
1109 case 'b': a=a-(rdir*2);
1111 case 'm': newprompt("Enter target room: ",
1112 targ,ROOMNAMELEN-1);
1113 if (strlen(targ)>0) {
1114 sprintf(cmd,"MOVE %ld|%s",
1118 printf("%s\n",&cmd[4]);
1119 if (cmd[0]=='2') msg_arr[a]=0L;
1124 if (cmd[0]!='2') goto RMSGREAD;
1126 case 'd': printf("*** Delete this message? ");
1128 sprintf(cmd,"DELE %ld",msg_arr[a]);
1131 printf("%s\n",&cmd[4]);
1132 if (cmd[0]=='2') msg_arr[a]=0L;
1138 case 'h': read_message(msg_arr[a],READ_HEADER);
1140 case 'r': entmsg(1,(DEFAULT_ENTRY==46 ? 2 : 0));
1143 } /* end for loop */
1144 } /* end read routine */
1150 * View and edit a system message
1152 void edit_system_message(char *which_message)
1158 sprintf(desc, "system message '%s'", which_message);
1159 sprintf(read_cmd, "MESG %s", which_message);
1160 sprintf(write_cmd, "EMSG %s", which_message);
1161 do_edit(desc, read_cmd, "NOOP", write_cmd);