1 // Text client functions for reading and writing of messages
3 // Copyright (c) 1987-2020 by the citadel.org team
5 // This program is open source software. Use, duplication, and/or
6 // disclosure are subject to the GNU General Purpose License version 3.
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
13 #include "textclient.h"
15 #define MAXWORDBUF SIZ
16 #define NO_REPLY_TO "nobody ... xxxxxx"
19 char reply_subject[SIZ];
20 char reply_references[SIZ];
21 char reply_inreplyto[SIZ];
25 char text[MAXWORDBUF];
28 void stty_ctdl(int cmd);
29 int haschar(const char *st, int ch);
30 int file_checksum(char *filename);
31 void progress(CtdlIPC * ipc, unsigned long curr, unsigned long cmax);
33 unsigned long *msg_arr = NULL;
36 extern char room_name[];
37 extern char tempdir[];
38 extern unsigned room_flags;
39 extern unsigned room_flags2;
41 extern long highest_msg_read;
44 extern int screenwidth;
45 extern int screenheight;
46 extern long maxmsgnum;
49 extern char is_room_aide;
50 extern char fullname[];
52 extern unsigned userflags;
53 extern char sigcaught;
54 extern char printcmd[];
55 extern int rc_allow_attachments;
56 extern int rc_display_message_numbers;
57 extern int rc_force_mail_prompts;
58 extern int editor_pid;
59 extern CtdlIPC *ipc_for_signal_handlers; /* KLUDGE cover your eyes */
61 char urls[MAXURLS][SIZ];
63 int has_images = 0; /* Current msg has images */
64 struct parts *last_message_parts = NULL; /* Parts from last msg */
67 void ka_sigcatch(int signum)
70 signal(SIGALRM, ka_sigcatch);
71 CtdlIPCNoop(ipc_for_signal_handlers);
76 * server keep-alive version of wait() (needed for external editor)
78 pid_t ka_wait(int *kstatus)
83 signal(SIGALRM, ka_sigcatch);
87 } while (errno == EINTR);
88 signal(SIGALRM, SIG_IGN);
95 * version of system() that uses ka_wait()
97 int ka_system(char *shc)
106 perror("Cannot fork");
108 return ((pid_t) childpid);
112 execlp("/bin/sh", "sh", "-c", shc, NULL);
118 waitpid = ka_wait(&retcode);
119 } while (waitpid != childpid);
128 * add a newline to the buffer...
130 void add_newline(struct cittext *textlist)
135 while (ptr->next != NULL)
138 while (ptr->text[strlen(ptr->text) - 1] == 32)
139 ptr->text[strlen(ptr->text) - 1] = 0;
140 /* strcat(ptr->text,"\n"); */
142 ptr->next = (struct cittext *)
143 malloc(sizeof(struct cittext));
146 strcpy(ptr->text, "");
151 * add a word to the buffer...
153 void add_word(struct cittext *textlist, char *wordbuf)
158 while (ptr->next != NULL)
161 if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
162 ptr->next = (struct cittext *)
163 malloc(sizeof(struct cittext));
166 strcpy(ptr->text, "");
169 strcat(ptr->text, wordbuf);
170 strcat(ptr->text, " ");
175 * begin editing of an opened file pointed to by fp
177 void citedit(FILE * fp)
179 int a, prev, finished, b, last_space;
181 struct cittext *textlist = NULL;
183 char wordbuf[MAXWORDBUF];
186 /* first, load the text into the buffer */
188 textlist = (struct cittext *) malloc(sizeof(struct cittext));
189 textlist->next = NULL;
190 strcpy(textlist->text, "");
194 while (a = getc(fp), a >= 0) {
196 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
197 add_word(textlist, wordbuf);
199 if ((prev == 13) || (prev == 10)) {
200 add_word(textlist, "\n");
201 add_newline(textlist);
202 add_word(textlist, "");
205 wordbuf[strlen(wordbuf) + 1] = 0;
206 wordbuf[strlen(wordbuf)] = a;
208 if (strlen(wordbuf) + 3 > screenwidth) {
209 add_word(textlist, wordbuf);
217 prev = (appending ? 13 : (-1));
228 if ((a != 32) && (prev == 13)) {
229 add_word(textlist, "\n");
233 if ((a == 32) && (prev == 13)) {
234 add_word(textlist, "\n");
235 add_newline(textlist);
239 if (!IsEmptyStr(wordbuf)) {
240 wordbuf[strlen(wordbuf) - 1] = 0;
245 } else if (a == 23) {
247 wordbuf[strlen(wordbuf) - 1] = 0;
251 } while (!IsEmptyStr(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
252 } else if (a == 13) {
254 if (IsEmptyStr(wordbuf))
257 for (b = 0; b < strlen(wordbuf); ++b)
258 if (wordbuf[b] == 32) {
260 add_word(textlist, wordbuf);
261 strcpy(wordbuf, &wordbuf[b + 1]);
264 add_word(textlist, wordbuf);
269 wordbuf[strlen(wordbuf) + 1] = 0;
270 wordbuf[strlen(wordbuf)] = a;
272 if ((strlen(wordbuf) + 3) > screenwidth) {
274 for (b = 0; b < strlen(wordbuf); ++b)
275 if (wordbuf[b] == 32)
277 if (last_space >= 0) {
278 for (b = 0; b < strlen(wordbuf); ++b)
279 if (wordbuf[b] == 32) {
281 add_word(textlist, wordbuf);
282 strcpy(wordbuf, &wordbuf[b + 1]);
285 for (b = 0; b < strlen(wordbuf); ++b) {
290 scr_printf("\n%s", wordbuf);
292 add_word(textlist, wordbuf);
298 } while (finished == 0);
300 /* write the buffer back to disk */
302 for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
303 fprintf(fp, "%s", ptr->text);
307 rv = ftruncate(fileno(fp), ftell(fp));
309 scr_printf("failed to set message buffer: %s\n", strerror(errno));
312 /* and deallocate the memory we used */
313 while (textlist != NULL) {
314 ptr = textlist->next;
322 * Free the struct parts
324 void free_parts(struct parts *p)
326 struct parts *a_part = p;
332 a_part = a_part->next;
339 * This is a mini RFC2047 decoder.
340 * It only handles strings encoded from UTF-8 as Quoted-printable.
341 * We can do this "in place" because the converted string will always be smaller than the source string.
343 void mini_2047_decode(char *s)
345 if (!s) { // no null strings allowed!
349 char *qstart = strstr(s, "=?UTF-8?Q?"); // Must start with this string
354 char *qend = strstr(qstart+10, "?="); // Must end with this string
359 if (qend <= qstart) { // And there must be something in between them.
363 // The string has qualified for conversion.
365 strcpy(qend, ""); // Strip the trailer
366 strcpy(qstart, &qstart[10]); // Strip the header
368 char *r = qstart; // Pointer to where in the string we're reading
369 char *w = s; // Pointer to where in the string we're writing
371 while(*r) { // Loop through the source string
372 if (r[0] == '=') { // "=" means read a hex character
378 sscanf(ch, "%02x", &c);
383 else if (r[0] == '_') { // "_" is a space
388 else { // anything else pass through literally
394 w[0] = 0; // null terminate
399 * Read a message from the server
401 int read_message(CtdlIPC *ipc,
402 long num, /* message number */
403 int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
404 FILE *dest /* Destination file, NULL for screen */
411 struct ctdlipcmessage *message = NULL;
412 int r; /* IPC response code */
413 char *converted_text = NULL;
420 int final_line_is_blank = 0;
426 strcpy(reply_to, NO_REPLY_TO);
427 strcpy(reply_subject, "");
428 strcpy(reply_references, "");
429 strcpy(reply_inreplyto, "");
431 r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0), 4, &message, buf);
433 scr_printf("*** msg #%ld: %d %s\n", num, r, buf);
436 free_parts(message->attachments);
442 fprintf(dest, "\n ");
450 if (pagin == 1 && !dest) {
454 /* View headers only */
456 scr_printf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
457 message->nhdr ? "yes" : "no", message->author, message->type, message->msgid);
458 if (!IsEmptyStr(message->subject)) {
459 scr_printf("subj=%s\n", message->subject);
461 if (!IsEmptyStr(message->email)) {
462 scr_printf("rfca=%s\n", message->email);
464 scr_printf("room=%s\ntime=%s", message->room, asctime(localtime(&message->time)));
465 if (!IsEmptyStr(message->recipient)) {
466 scr_printf("rcpt=%s\n", message->recipient);
468 if (message->attachments) {
471 for (ptr = message->attachments; ptr; ptr = ptr->next) {
472 scr_printf("part=%s|%s|%s|%s|%s|%ld\n",
473 ptr->name, ptr->filename, ptr->number, ptr->disposition, ptr->mimetype, ptr->length);
479 free_parts(message->attachments);
484 if (rc_display_message_numbers) {
486 fprintf(dest, "[#%s] ", message->msgid);
491 scr_printf("#%s", message->msgid);
496 if (nhdr == 1 && !is_room_aide) {
498 fprintf(dest, " ****");
506 localtime_r(&message->time, &thetime);
507 strftime(now, sizeof now, "%F %R", &thetime);
509 fprintf(dest, "%s from %s ", now, message->author);
510 if (!message->is_local) {
511 fprintf(dest, "<%s> ", message->email);
516 scr_printf("%s ", now);
520 scr_printf("%s ", message->author);
521 if (!message->is_local) {
525 scr_printf("%s", message->email);
530 if (strcasecmp(message->room, room_name) && (IsEmptyStr(message->email))) {
532 fprintf(dest, "in %s> ", message->room);
536 color(BRIGHT_MAGENTA);
537 scr_printf("%s> ", message->room);
540 if (!IsEmptyStr(message->recipient)) {
542 fprintf(dest, "to %s ", message->recipient);
547 scr_printf("%s ", message->recipient);
558 /* Set the reply-to address to an Internet e-mail address if possible
560 if ((message->email != NULL) && (!IsEmptyStr(message->email))) {
561 if (!IsEmptyStr(message->author)) {
562 snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
564 safestrncpy(reply_to, message->email, sizeof reply_to);
568 /* But if we can't do that, set it to a Citadel address.
570 if (!strcmp(reply_to, NO_REPLY_TO)) {
571 safestrncpy(reply_to, message->author, sizeof(reply_to));
574 if (message->msgid != NULL) {
575 safestrncpy(reply_inreplyto, message->msgid, sizeof reply_inreplyto);
578 if (message->references != NULL)
579 if (!IsEmptyStr(message->references)) {
580 safestrncpy(reply_references, message->references, sizeof reply_references);
583 if (message->subject != NULL) {
584 safestrncpy(reply_subject, message->subject, sizeof reply_subject);
585 if (!IsEmptyStr(message->subject)) {
587 fprintf(dest, "Subject: %s\n", message->subject);
590 scr_printf("Subject: ");
592 mini_2047_decode(message->subject);
593 scr_printf("%s\n", message->subject);
599 if (pagin == 1 && !dest) {
603 /******* end of header output, start of message text output *******/
606 * Convert HTML to plain text, formatting for the actual width
607 * of the client screen.
609 if (!strcasecmp(message->content_type, "text/html")) {
610 converted_text = html_to_ascii(message->text, 0, screenwidth);
611 if (converted_text != NULL) {
613 message->text = converted_text;
618 /* Text/plain is a different type */
619 if (!strcasecmp(message->content_type, "text/plain")) {
623 /* Render text/x-markdown as plain text */
624 if (!strcasecmp(message->content_type, "text/x-markdown")) {
629 static char *urlprefixes[] = {
635 num_urls = 0; /* Start with a clean slate */
636 for (p = 0; p < (sizeof urlprefixes / sizeof(char *)); ++p) {
637 searchptr = message->text;
638 while ((searchptr != NULL) && (num_urls < MAXURLS)) {
639 searchptr = strstr(searchptr, urlprefixes[p]);
640 if (searchptr != NULL) {
641 safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
642 for (i = 0; i < strlen(urls[num_urls]); i++) {
643 ch = urls[num_urls][i];
644 if (ch == '>' || ch == '\"' || ch == ')' || ch == ' ' || ch == '\n') {
645 urls[num_urls][i] = 0;
658 if (format_type == 0) {
659 fr = fmout(screenwidth, NULL, message->text, dest, 1);
661 /* renderer for text/plain */
663 lineptr = message->text;
666 nextline = strchr(lineptr, '\n');
667 if (nextline != NULL) {
674 if (sigcaught == 0) {
675 linelen = strlen(lineptr);
676 if (linelen && (lineptr[linelen - 1] == '\r')) {
677 lineptr[--linelen] = 0;
680 fprintf(dest, "%s\n", lineptr);
682 scr_printf("%s\n", lineptr);
686 final_line_is_blank = 1;
688 final_line_is_blank = 0;
693 if (!final_line_is_blank) {
702 /* Enumerate any attachments */
703 if ((pagin == 1) && (message->attachments)) {
706 for (ptr = message->attachments; ptr; ptr = ptr->next) {
707 if ((!strcasecmp(ptr->disposition, "attachment"))
708 || (!strcasecmp(ptr->disposition, "inline"))
709 || (!strcasecmp(ptr->disposition, ""))
711 if ((strcasecmp(ptr->number, message->mime_chosen))
712 && (!IsEmptyStr(ptr->mimetype))
716 color(BRIGHT_MAGENTA);
717 scr_printf("%s", ptr->number);
721 scr_printf("%s", ptr->filename);
723 scr_printf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
724 if (!strncmp(ptr->mimetype, "image/", 6)) {
732 /* Save the attachments info for later */
733 last_message_parts = message->attachments;
739 if (pagin == 1 && !dest)
747 * replace string function for the built-in editor
749 void replace_string(char *filename, long int startpos)
758 int substitutions = 0;
762 newprompt("Enter text to be replaced: ", srch_str, (sizeof(srch_str) - 1));
763 if (IsEmptyStr(srch_str)) {
767 newprompt("Enter text to replace it with: ", rplc_str, (sizeof(rplc_str) - 1));
769 fp = fopen(filename, "r+");
775 fseek(fp, startpos, 0);
777 while (a = getc(fp), a > 0) {
779 buf[strlen(buf) + 1] = 0;
780 buf[strlen(buf)] = a;
781 if (strlen(buf) >= strlen(srch_str)) {
782 ptr = (&buf[strlen(buf) - strlen(srch_str)]);
783 if (!strncmp(ptr, srch_str, strlen(srch_str))) {
784 strcpy(ptr, rplc_str);
788 if (strlen(buf) > 384) {
791 rv = fwrite((char *) buf, 128, 1, fp);
793 scr_printf("failed to replace string: %s\n", strerror(errno));
796 strcpy(buf, &buf[128]);
802 if (!IsEmptyStr(buf)) {
803 rv = fwrite((char *) buf, strlen(buf), 1, fp);
807 rv = truncate(filename, wpos);
808 scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
813 * Function to begin composing a new message
815 int client_make_message(CtdlIPC * ipc, char *filename, /* temporary file name */
816 char *recipient, /* NULL if it's not mail */
817 int is_anonymous, int format_type, int mode, char *subject, /* buffer to store subject line */
818 int subject_required)
827 if ((mode == 2) && (IsEmptyStr(editor_path))) {
828 scr_printf("*** No editor available; using built-in editor.\n");
833 time_t now = time(NULL);
834 localtime_r(&now, &thetime);
835 strftime(datestr, sizeof datestr, "%F %R", &thetime);
838 if (room_flags & QR_ANONONLY && !recipient) {
839 snprintf(header, sizeof header, " ****");
841 snprintf(header, sizeof header, " %s from %s", datestr, (is_anonymous ? "[anonymous]" : fullname)
843 if (!IsEmptyStr(recipient)) {
844 size_t tmp = strlen(header);
845 snprintf(&header[tmp], sizeof header - tmp, " to %s", recipient);
848 scr_printf("%s\n", header);
850 if (!IsEmptyStr(subject)) {
851 scr_printf("Subject: %s\n", subject);
854 if ((subject_required) && (IsEmptyStr(subject))) {
855 newprompt("Subject: ", subject, 70);
859 scr_printf("(Press ctrl-d when finished)\n");
863 fp = fopen(filename, "r");
865 fmout(screenwidth, fp, NULL, NULL, 0);
868 scr_printf("failed to get stream position %s\n", strerror(errno));
871 fp = fopen(filename, "w");
873 scr_printf("*** Error opening temp file!\n %s: %s\n", filename, strerror(errno)
884 fp = fopen(filename, "r+");
886 scr_printf("*** Error opening temp file!\n %s: %s\n", filename, strerror(errno)
895 fp = fopen(filename, "a");
897 scr_printf("*** Error opening temp file!\n" " %s: %s\n", filename, strerror(errno));
917 default: /* allow 2+ modes */
918 e_ex_code = 1; /* start with a failed exit code */
919 stty_ctdl(SB_RESTORE);
921 cksum = file_checksum(filename);
922 if (editor_pid == 0) {
925 chmod(filename, 0600);
926 snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
928 execlp(editor_path, editor_path, filename, NULL);
934 b = ka_wait(&e_ex_code);
935 } while ((b != editor_pid) && (b >= 0));
941 MECR:if (mode >= 2) {
942 if (file_checksum(filename) == cksum) {
943 scr_printf("*** Aborted message.\n");
946 if (e_ex_code == 0) {
952 b = keymenu("Entry command (? for options)",
954 "<C>ontinue|" "<S>ave message|" "<P>rint formatted|" "add s<U>bject|" "<R>eplace string|" "<H>old message");
963 scr_printf(" %s from %s", datestr, fullname);
964 if (!IsEmptyStr(recipient)) {
965 scr_printf(" to %s", recipient);
969 if (!IsEmptyStr(subject)) {
970 scr_printf("Subject: %s\n", subject);
972 fp = fopen(filename, "r");
974 fmout(screenwidth, fp, NULL, NULL, 0);
977 scr_printf("failed to get stream position %s\n", strerror(errno));
983 replace_string(filename, 0L);
990 if (subject != NULL) {
991 newprompt("Subject: ", subject, 70);
998 MEABT:scr_printf("Are you sure? ");
1002 MEABT2:unlink(filename);
1008 * Make sure there's room in msg_arr[] for at least one more.
1010 void check_msg_arr_size(void)
1012 if ((num_msgs + 1) > msg_arr_size) {
1013 msg_arr_size += 512;
1014 msg_arr = realloc(msg_arr, ((sizeof(long)) * msg_arr_size));
1020 * break_big_lines() - break up lines that are >1024 characters
1021 * otherwise the server will truncate
1023 void break_big_lines(char *msg)
1033 while (strlen(ptr) > 1000) {
1034 break_here = strchr(&ptr[900], ' ');
1035 if ((break_here == NULL) || (break_here > &ptr[999])) {
1036 break_here = &ptr[999];
1045 * entmsg() - edit and create a message
1046 * returns 0 if message was saved
1048 int entmsg(CtdlIPC * ipc, int is_reply, /* nonzero if this was a <R>eply command */
1050 int masquerade /* prompt for a non-default display name? */
1060 struct ctdlipcmessage message;
1061 unsigned long *msgarr = NULL;
1062 int r; /* IPC response code */
1063 int subject_required = 0;
1065 if (entmsg_ok == ENTMSG_OK_YES) {
1066 /* no problem, go right ahead */
1068 else if (entmsg_ok == ENTMSG_OK_BLOG) {
1070 scr_printf("WARNING: this is a BLOG room.\n");
1071 scr_printf("The '<E>nter Message' command will create a BLOG POST.\n");
1072 scr_printf("If you want to leave a comment or reply to a comment, use the '<R>eply' command.\n");
1073 scr_printf("Do you really want to create a new blog post? ");
1080 scr_printf("You may not enter messages in this type of room.\n");
1090 strcpy(subject, "");
1093 * First, check to see if we have permission to enter a message in
1094 * this room. The server will return an error code if we can't.
1096 strcpy(message.recipient, "");
1097 strcpy(message.author, "");
1098 strcpy(message.subject, "");
1099 strcpy(message.references, "");
1100 message.text = ""; /* point to "", changes later */
1101 message.anonymous = 0;
1102 message.type = mode;
1105 newprompt("Display name for this message: ", message.author, 40);
1110 if (!IsEmptyStr(reply_subject)) {
1111 if (!strncasecmp(reply_subject, "Re: ", 3)) {
1112 strcpy(message.subject, reply_subject);
1114 snprintf(message.subject, sizeof message.subject, "Re: %s", reply_subject);
1118 /* Trim down excessively long lists of thread references. We eliminate the
1119 * second one in the list so that the thread root remains intact.
1121 int rrtok = num_tokens(reply_references, '|');
1122 int rrlen = strlen(reply_references);
1123 if (((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10)) {
1124 remove_token(reply_references, 1, '|');
1127 snprintf(message.references, sizeof message.references, "%s%s%s",
1128 reply_references, (IsEmptyStr(reply_references) ? "" : "|"), reply_inreplyto);
1131 r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1133 if (r / 100 != 2 && r / 10 != 57) {
1134 scr_printf("%s\n", buf);
1138 /* Error code 570 is special. It means that we CAN enter a message
1139 * in this room, but a recipient needs to be specified.
1146 /* If the user is a dumbass, tell them how to type. */
1147 if ((userflags & US_EXPERT) == 0) {
1148 scr_printf("Entering message. Word wrap will give you soft linebreaks. Pressing the\n");
1149 scr_printf("'enter' key will give you a hard linebreak and an indent. Press 'enter' twice\n");
1150 scr_printf("when finished.\n");
1153 /* Handle the selection of a recipient, if necessary. */
1155 if (need_recp == 1) {
1156 if (axlevel >= AxProbU) {
1158 strcpy(buf, reply_to);
1160 newprompt("Enter recipient: ", buf, SIZ - 100);
1161 if (IsEmptyStr(buf)) {
1166 strcpy(buf, "sysop");
1168 strcpy(message.recipient, buf);
1170 if (room_flags & QR_ANONOPT) {
1171 scr_printf("Anonymous (Y/N)? ");
1173 message.anonymous = 1;
1176 /* If it's mail, we've got to check the validity of the recipient... */
1177 if (!IsEmptyStr(message.recipient)) {
1178 r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1180 scr_printf("%s\n", buf);
1185 /* Learn the number of the newest message in in the room, so we can
1186 * tell upon saving whether someone else has posted too.
1189 r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1191 scr_printf("%s\n", buf);
1193 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++);
1196 /* Now compose the message... */
1197 if (client_make_message(ipc, temp, message.recipient, message.anonymous, 0, c, message.subject, subject_required) != 0) {
1203 /* Reopen the temp file that was created, so we can send it */
1204 fp = fopen(temp, "r");
1206 if (!fp || !(message.text = load_message_from_file(fp))) {
1207 scr_printf("*** Internal error while trying to save message!\n" "%s: %s\n", temp, strerror(errno));
1215 /* Break lines that are >1024 characters, otherwise the server
1216 * will truncate them.
1218 break_big_lines(message.text);
1220 /* Transmit message to the server */
1221 r = CtdlIPCPostMessage(ipc, 1, NULL, &message, buf);
1223 scr_printf("%s\n", buf);
1227 /* Yes, unlink it now, so it doesn't stick around if we crash */
1231 highmsg = msgarr[num_msgs - 1];
1236 r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1238 scr_printf("%s\n", buf);
1240 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++);
1243 /* get new highest message number in room to set lrp for goto... */
1244 maxmsgnum = msgarr[num_msgs - 1];
1246 /* now see if anyone else has posted in here */
1248 for (a = 0; a < num_msgs; ++a) {
1249 if (msgarr[a] > highmsg) {
1257 /* In the Mail> room, this algorithm always counts one message
1258 * higher than in public rooms, so we decrement it by one.
1265 scr_printf("*** 1 additional message has been entered " "in this room by another user.\n");
1267 scr_printf("*** %d additional messages have been entered " "in this room by other users.\n", b);
1276 * Do editing on a quoted file
1278 void process_quote(void)
1280 FILE *qfile, *tfile;
1282 int line, qstart, qend;
1284 /* Unlink the second temp file as soon as it's opened, so it'll get
1285 * deleted even if the program dies
1287 qfile = fopen(temp2, "r");
1290 /* Display the quotable text with line numbers added */
1292 if (fgets(buf, 128, qfile) == NULL) {
1293 /* we're skipping a line here */
1295 while (fgets(buf, 128, qfile) != NULL) {
1296 scr_printf("%3d %s", ++line, buf);
1299 qstart = intprompt("Begin quoting at", 1, 1, line);
1300 qend = intprompt(" End quoting at", line, qstart, line);
1304 if (fgets(buf, 128, qfile) == NULL) {
1305 /* we're skipping a line here */
1307 tfile = fopen(temp, "w");
1308 while (fgets(buf, 128, qfile) != NULL) {
1309 if ((++line >= qstart) && (line <= qend)) {
1310 fprintf(tfile, " >%s", buf);
1313 fprintf(tfile, " \n");
1321 * List the URLs which were embedded in the previous message
1323 void list_urls(CtdlIPC * ipc)
1329 if (num_urls == 0) {
1330 scr_printf("There were no URLs in the previous message.\n\n");
1334 for (i = 0; i < num_urls; ++i) {
1335 scr_printf("%3d %s\n", i + 1, urls[i]);
1338 if ((i = num_urls) != 1)
1339 i = intprompt("Display which one", 1, 1, num_urls);
1341 snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1348 * Run image viewer in background
1350 int do_image_view(const char *filename)
1355 snprintf(cmd, sizeof cmd, imagecmd, filename);
1362 if (childpid == 0) {
1364 pid_t grandchildpid;
1366 grandchildpid = fork();
1367 if (grandchildpid < 0) {
1368 return grandchildpid;
1371 if (grandchildpid == 0) {
1376 nullfd = open("/dev/null", O_WRONLY);
1383 retcode = system(cmd);
1393 if (grandchildpid > 0) {
1401 waitpid(childpid, &retcode, 0);
1410 * View an image attached to a message
1412 void image_view(CtdlIPC * ipc, unsigned long msg)
1414 struct parts *ptr = last_message_parts;
1418 /* Run through available parts */
1419 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1420 if ((!strcasecmp(ptr->disposition, "attachment")
1421 || !strcasecmp(ptr->disposition, "inline"))
1422 && !strncmp(ptr->mimetype, "image/", 6)) {
1425 strcpy(part, ptr->number);
1432 strprompt("View which part (0 when done)", part, SIZ - 1);
1434 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1435 if ((!strcasecmp(ptr->disposition, "attachment")
1436 || !strcasecmp(ptr->disposition, "inline"))
1437 && !strncmp(ptr->mimetype, "image/", 6)
1438 && !strcasecmp(ptr->number, part)) {
1441 void *file = NULL; /* The downloaded file */
1446 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1448 scr_printf("%s\n", buf);
1452 len = (size_t) extract_long(buf, 0);
1453 progress(ipc, len, len);
1455 CtdlMakeTempFileName(tmp, sizeof tmp);
1456 strcat(tmp, ptr->filename);
1457 save_buffer(file, len, tmp);
1471 * Read the messages in the current room
1473 void readmsgs(CtdlIPC * ipc, enum MessageList c, /* see listing in citadel_ipc.h */
1474 enum MessageDirection rdir, /* 1=Forward (-1)=Reverse */
1475 int q /* Number of msgs to read (if c==3) */
1478 int a, e, f, g, start;
1484 char prtfile[PATH_MAX];
1487 char targ[ROOMNAMELEN];
1488 char filename[PATH_MAX];
1489 char save_to[PATH_MAX];
1490 void *attachment = NULL; /* Downloaded attachment */
1491 FILE *dest = NULL; /* Alternate destination other than screen */
1492 int r; /* IPC response code */
1493 static int att_seq = 0; /* Attachment download sequence number */
1494 int rv = 0; /* silence the stupid warn_unused_result warnings */
1496 CtdlMakeTempFileName(prtfile, sizeof prtfile);
1502 r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1504 scr_printf("%s\n", cmd);
1506 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++);
1509 if (num_msgs == 0) {
1510 if (c == LastMessages) {
1513 scr_printf("*** There are no ");
1514 if (c == NewMessages)
1516 if (c == OldMessages)
1518 scr_printf("messages in this room.\n");
1522 /* this loop cycles through each message... */
1523 start = ((rdir == 1) ? 0 : (num_msgs - 1));
1524 for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1525 while (msg_arr[a] == 0L) {
1527 if ((a == num_msgs) || (a == (-1)))
1531 RAGAIN:pagin = ((arcflag == 0)
1533 && (userflags & US_PAGINATOR)) ? 1 : 0;
1535 /* If we're doing a quote, set the screenwidth to 72 */
1537 hold_sw = screenwidth;
1541 /* If printing or archiving, set the screenwidth to 80 */
1543 hold_sw = screenwidth;
1547 /* clear parts list */
1548 free_parts(last_message_parts);
1549 last_message_parts = NULL;
1551 /* now read the message... */
1552 e = read_message(ipc, msg_arr[a], pagin, dest);
1554 /* ...and set the screenwidth back if we have to */
1555 if ((quotflag) || (arcflag)) {
1556 screenwidth = hold_sw;
1559 highest_msg_read = msg_arr[a];
1564 enable_color = hold_color;
1573 enable_color = hold_color;
1576 if (freopen(prtfile, "r", stdin) == NULL) {
1577 /* we probably should handle the error condition here */
1579 stty_ctdl(SB_RESTORE);
1580 ka_system(printcmd);
1581 stty_ctdl(SB_NO_INTR);
1588 } while ((g != f) && (g >= 0));
1589 scr_printf("Message printed.\n");
1593 if (((userflags & US_NOPROMPT) || (e == SIGINT))
1594 && (((room_flags & QR_MAILBOX) == 0)
1595 || (rc_force_mail_prompts == 0))) {
1600 color(BRIGHT_WHITE);
1601 scr_printf("%d", num_msgs - a - 1);
1605 keyopt("<B>ack <A>gain <R>eply reply<Q>uoted <N>ext <S>top ");
1606 if (rc_url_cmd[0] && num_urls)
1607 keyopt("<U>RLview ");
1608 if (has_images > 0 && !IsEmptyStr(imagecmd))
1609 keyopt("<I>mages ");
1610 keyopt("<?>help -> ");
1613 e = (inkey() & 127);
1615 /* return key same as <N> */ if (e == 10)
1617 /* space key same as <N> */ if (e == 32)
1619 /* del/move for aides only */
1621 && ((room_flags & QR_MAILBOX) == 0)
1622 && ((room_flags2 & QR2_COLLABDEL) == 0)
1624 if ((e == 'd') || (e == 'm'))
1627 /* print only if available */
1628 if ((e == 'p') && (IsEmptyStr(printcmd)))
1630 /* can't file if not allowed */
1632 && (rc_allow_attachments == 0))
1634 /* link only if browser avail*/
1636 && (IsEmptyStr(rc_url_cmd)))
1639 && (IsEmptyStr(imagecmd) || !has_images))
1641 } while ((e != 'a') && (e != 'n') && (e != 's')
1642 && (e != 'd') && (e != 'm') && (e != 'p')
1643 && (e != 'q') && (e != 'b') && (e != 'h')
1644 && (e != 'r') && (e != 'f') && (e != '?')
1645 && (e != 'u') && (e != 'c') && (e != 'y')
1646 && (e != 'i') && (e != 'o'));
1652 scr_printf("Again");
1655 scr_printf("Delete");
1667 scr_printf("Print");
1670 scr_printf("reply Quoted");
1676 scr_printf("Header");
1679 scr_printf("Reply");
1682 scr_printf("Open attachments");
1688 scr_printf("URL's");
1691 scr_printf("mY next");
1696 scr_printf("? <help>");
1699 if (userflags & US_DISAPPEAR || e == 'i')
1700 scr_printf("\r%79s\r", "");
1704 DONE_QUOTING:switch (e) {
1706 scr_printf("Options available here:\n"
1707 " ? Help (prints this message)\n"
1708 " S Stop reading immediately\n"
1709 " A Again (repeats last message)\n"
1710 " N Next (continue with next message)\n"
1711 " Y My Next (continue with next message you authored)\n"
1712 " B Back (go back to previous message)\n");
1714 || (room_flags & QR_MAILBOX)
1715 || (room_flags2 & QR2_COLLABDEL)
1717 scr_printf(" D Delete this message\n" " M Move message to another room\n");
1719 scr_printf(" C Copy message to another room\n");
1720 if (!IsEmptyStr(printcmd))
1721 scr_printf(" P Print this message\n");
1722 scr_printf(" Q Reply to this message, quoting portions of it\n"
1723 " H Headers (display message headers only)\n");
1725 scr_printf(" R Reply to this message\n");
1726 if (rc_allow_attachments) {
1727 scr_printf(" O (Open attachments)\n");
1728 scr_printf(" F (save attachments to a File)\n");
1730 if (!IsEmptyStr(rc_url_cmd))
1731 scr_printf(" U (list URL's for display)\n");
1732 if (!IsEmptyStr(imagecmd) && has_images > 0)
1733 scr_printf(" I Image viewer\n");
1738 dest = fopen(prtfile, "w");
1740 hold_color = enable_color;
1745 dest = fopen(temp2, "w");
1747 hold_color = enable_color;
1759 newprompt("Enter target room: ", targ, ROOMNAMELEN - 1);
1760 if (!IsEmptyStr(targ)) {
1761 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0), msg_arr[a], targ, cmd);
1762 scr_printf("%s\n", cmd);
1768 if (r / 100 != 2) /* r will be init'ed, FIXME */
1769 goto RMSGREAD; /* the logic here sucks */
1773 newprompt("Which section? ", filename, ((sizeof filename) - 1));
1774 r = CtdlIPCAttachmentDownload(ipc, msg_arr[a], filename, &attachment, progress, cmd);
1776 scr_printf("%s\n", cmd);
1778 extract_token(filename, cmd, 2, '|', sizeof filename);
1780 * Part 1 won't have a filename; use the
1781 * subject of the message instead. IO
1783 if (IsEmptyStr(filename)) {
1784 strcpy(filename, reply_subject);
1786 if (e == 'o') { /* open attachment */
1787 mkdir(tempdir, 0700);
1788 snprintf(save_to, sizeof save_to, "%s/%04x.%s", tempdir, ++att_seq, filename);
1789 save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1790 snprintf(cmd, sizeof cmd, rc_open_cmd, save_to);
1793 scr_printf("failed to save %s Reason %d\n", cmd, rv);
1794 } else { /* save attachment to disk */
1795 destination_directory(save_to, filename);
1796 save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1805 scr_printf("*** Delete this message? ");
1807 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1808 scr_printf("%s\n", cmd);
1816 read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1819 savedpos = num_msgs;
1820 entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1821 num_msgs = savedpos;
1827 image_view(ipc, msg_arr[a]);
1830 { /* hack hack hack */
1831 /* find the next message by me, stay here if we find nothing */
1834 for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir) {
1835 /* This is repetitively dumb, but that's what computers are for.
1836 We have to load up messages until we find one by us */
1839 struct ctdlipcmessage *msg = NULL;
1841 /* read the header so we can get 'from=' */
1842 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1843 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1844 a = lasta; /* meesa current */
1852 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1856 } /* end for loop */
1857 } /* end read routine */
1861 * View and edit a system message
1863 void edit_system_message(CtdlIPC * ipc, char *which_message)
1867 char write_cmd[SIZ];
1869 snprintf(desc, sizeof desc, "system message '%s'", which_message);
1870 snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1871 snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1872 do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1877 * Loads the contents of a file into memory. Caller must free the allocated memory.
1879 char *load_message_from_file(FILE * src)
1885 fseek(src, 0, SEEK_END);
1889 dest = (char *) calloc(1, i + 1);
1896 g = fread(dest + got, 1, i - got, src);
1899 /* Interrupted system call, keep going */
1902 /* At this point we have either EOF or error */