1 // Text client functions for reading and writing of messages
3 // Beware: this is really old and crappy code, written in the
4 // late 1980s when my coding style was absolute garbage. It
5 // works, but we probably should replace most of it.
7 // Copyright (c) 1987-2022 by the citadel.org team
9 // This program is open source software. Use, duplication, and/or
10 // disclosure are subject to the GNU General Purpose License version 3.
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 #include "textclient.h"
19 #define MAXWORDBUF SIZ
20 #define NO_REPLY_TO "nobody ... xxxxxx"
23 char reply_subject[SIZ];
24 char reply_references[SIZ];
25 char reply_inreplyto[SIZ];
29 char text[MAXWORDBUF];
32 void stty_ctdl(int cmd);
33 int haschar(const char *st, int ch);
34 int file_checksum(char *filename);
35 void progress(CtdlIPC * ipc, unsigned long curr, unsigned long cmax);
37 unsigned long *msg_arr = NULL;
40 extern char room_name[];
41 extern char tempdir[];
42 extern unsigned room_flags;
43 extern unsigned room_flags2;
45 extern long highest_msg_read;
48 extern int screenwidth;
49 extern int screenheight;
50 extern long maxmsgnum;
53 extern char is_room_aide;
54 extern char fullname[];
56 extern unsigned userflags;
57 extern char sigcaught;
58 extern char printcmd[];
59 extern int rc_allow_attachments;
60 extern int rc_display_message_numbers;
61 extern int rc_force_mail_prompts;
62 extern int editor_pid;
63 extern CtdlIPC *ipc_for_signal_handlers; /* KLUDGE cover your eyes */
65 char urls[MAXURLS][SIZ];
67 int has_images = 0; /* Current msg has images */
68 struct parts *last_message_parts = NULL; /* Parts from last msg */
71 void ka_sigcatch(int signum) {
73 signal(SIGALRM, ka_sigcatch);
74 CtdlIPCNoop(ipc_for_signal_handlers);
79 * server keep-alive version of wait() (needed for external editor)
81 pid_t ka_wait(int *kstatus) {
85 signal(SIGALRM, ka_sigcatch);
89 } while (errno == EINTR);
90 signal(SIGALRM, SIG_IGN);
97 * version of system() that uses ka_wait()
99 int ka_system(char *shc) {
107 perror("Cannot fork");
109 return ((pid_t) childpid);
113 execlp("/bin/sh", "sh", "-c", shc, NULL);
119 waitpid = ka_wait(&retcode);
120 } while (waitpid != childpid);
129 * add a newline to the buffer...
131 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;
141 ptr->next = (struct cittext *)
142 malloc(sizeof(struct cittext));
145 strcpy(ptr->text, "");
150 * add a word to the buffer...
152 void add_word(struct cittext *textlist, char *wordbuf) {
156 while (ptr->next != NULL)
159 if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
160 ptr->next = (struct cittext *)
161 malloc(sizeof(struct cittext));
164 strcpy(ptr->text, "");
167 strcat(ptr->text, wordbuf);
168 strcat(ptr->text, " ");
173 * begin editing of an opened file pointed to by fp
175 void citedit(FILE * fp) {
176 int a, prev, finished, b, last_space;
178 struct cittext *textlist = NULL;
180 char wordbuf[MAXWORDBUF];
183 /* first, load the text into the buffer */
185 textlist = (struct cittext *) malloc(sizeof(struct cittext));
186 textlist->next = NULL;
187 strcpy(textlist->text, "");
191 while (a = getc(fp), a >= 0) {
193 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
194 add_word(textlist, wordbuf);
196 if ((prev == 13) || (prev == 10)) {
197 add_word(textlist, "\n");
198 add_newline(textlist);
199 add_word(textlist, "");
203 wordbuf[strlen(wordbuf) + 1] = 0;
204 wordbuf[strlen(wordbuf)] = a;
206 if (strlen(wordbuf) + 3 > screenwidth) {
207 add_word(textlist, wordbuf);
215 prev = (appending ? 13 : (-1));
226 if ((a != 32) && (prev == 13)) {
227 add_word(textlist, "\n");
231 if ((a == 32) && (prev == 13)) {
232 add_word(textlist, "\n");
233 add_newline(textlist);
237 if (!IsEmptyStr(wordbuf)) {
238 wordbuf[strlen(wordbuf) - 1] = 0;
246 wordbuf[strlen(wordbuf) - 1] = 0;
250 } while (!IsEmptyStr(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
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);
270 wordbuf[strlen(wordbuf) + 1] = 0;
271 wordbuf[strlen(wordbuf)] = a;
273 if ((strlen(wordbuf) + 3) > screenwidth) {
275 for (b = 0; b < strlen(wordbuf); ++b)
276 if (wordbuf[b] == 32)
278 if (last_space >= 0) {
279 for (b = 0; b < strlen(wordbuf); ++b)
280 if (wordbuf[b] == 32) {
282 add_word(textlist, wordbuf);
283 strcpy(wordbuf, &wordbuf[b + 1]);
286 for (b = 0; b < strlen(wordbuf); ++b) {
291 scr_printf("\n%s", wordbuf);
294 add_word(textlist, wordbuf);
300 } while (finished == 0);
302 /* write the buffer back to disk */
304 for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
305 fprintf(fp, "%s", ptr->text);
309 rv = ftruncate(fileno(fp), ftell(fp));
311 scr_printf("failed to set message buffer: %s\n", strerror(errno));
314 /* and deallocate the memory we used */
315 while (textlist != NULL) {
316 ptr = textlist->next;
324 * Free the struct parts
326 void free_parts(struct parts *p) {
327 struct parts *a_part = p;
333 a_part = a_part->next;
340 * This is a mini RFC2047 decoder.
341 * It only handles strings encoded from UTF-8 as Quoted-printable.
342 * We can do this "in place" because the converted string will always be smaller than the source string.
344 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);
537 color(BRIGHT_MAGENTA);
538 scr_printf("%s> ", message->room);
541 if (!IsEmptyStr(message->recipient)) {
543 fprintf(dest, "to %s ", message->recipient);
549 scr_printf("%s ", message->recipient);
561 // Set the reply-to address to an Internet e-mail address if possible
562 if ((message->email != NULL) && (!IsEmptyStr(message->email))) {
563 if (!IsEmptyStr(message->author)) {
564 snprintf(reply_to, sizeof reply_to, "%s <%s>", message->author, message->email);
567 strncpy(reply_to, message->email, sizeof reply_to);
571 // But if we can't do that, set it to a Citadel address.
572 if (!strcmp(reply_to, NO_REPLY_TO)) {
573 strncpy(reply_to, message->author, sizeof(reply_to));
576 if (message->msgid != NULL) {
577 strncpy(reply_inreplyto, message->msgid, sizeof reply_inreplyto);
580 if (message->references != NULL) {
581 if (!IsEmptyStr(message->references)) {
582 strncpy(reply_references, message->references, sizeof reply_references);
586 if (message->subject != NULL) {
587 strncpy(reply_subject, message->subject, sizeof reply_subject);
588 if (!IsEmptyStr(message->subject)) {
590 fprintf(dest, "Subject: %s\n", message->subject);
594 scr_printf("Subject: ");
596 mini_2047_decode(message->subject);
597 scr_printf("%s\n", message->subject);
603 if (pagin == 1 && !dest) {
607 /******* end of header output, start of message text output *******/
610 * Convert HTML to plain text, formatting for the actual width
611 * of the client screen.
613 if (!strcasecmp(message->content_type, "text/html")) {
614 converted_text = html_to_ascii(message->text, 0, screenwidth);
615 if (converted_text != NULL) {
617 message->text = converted_text;
622 /* Text/plain is a different type */
623 if (!strcasecmp(message->content_type, "text/plain")) {
627 /* Render text/x-markdown as plain text */
628 if (!strcasecmp(message->content_type, "text/x-markdown")) {
633 static char *urlprefixes[] = {
639 num_urls = 0; /* Start with a clean slate */
640 for (p = 0; p < (sizeof urlprefixes / sizeof(char *)); ++p) {
641 searchptr = message->text;
642 while ((searchptr != NULL) && (num_urls < MAXURLS)) {
643 searchptr = strstr(searchptr, urlprefixes[p]);
644 if (searchptr != NULL) {
645 strncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
646 for (i = 0; i < strlen(urls[num_urls]); i++) {
647 ch = urls[num_urls][i];
648 if (ch == '>' || ch == '\"' || ch == ')' || ch == ' ' || ch == '\n') {
649 urls[num_urls][i] = 0;
662 if (format_type == 0) {
663 fr = fmout(screenwidth, NULL, message->text, dest, 1);
666 /* renderer for text/plain */
668 lineptr = message->text;
671 nextline = strchr(lineptr, '\n');
672 if (nextline != NULL) {
679 if (sigcaught == 0) {
680 linelen = strlen(lineptr);
681 if (linelen && (lineptr[linelen - 1] == '\r')) {
682 lineptr[--linelen] = 0;
685 fprintf(dest, "%s\n", lineptr);
687 scr_printf("%s\n", lineptr);
691 final_line_is_blank = 1;
693 final_line_is_blank = 0;
698 if (!final_line_is_blank) {
707 /* Enumerate any attachments */
708 if ((pagin == 1) && (message->attachments)) {
711 for (ptr = message->attachments; ptr; ptr = ptr->next) {
712 if ((!strcasecmp(ptr->disposition, "attachment"))
713 || (!strcasecmp(ptr->disposition, "inline"))
714 || (!strcasecmp(ptr->disposition, ""))
716 if ((strcasecmp(ptr->number, message->mime_chosen))
717 && (!IsEmptyStr(ptr->mimetype))
721 color(BRIGHT_MAGENTA);
722 scr_printf("%s", ptr->number);
726 scr_printf("%s", ptr->filename);
728 scr_printf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
729 if (!strncmp(ptr->mimetype, "image/", 6)) {
737 /* Save the attachments info for later */
738 last_message_parts = message->attachments;
744 if (pagin == 1 && !dest)
752 * replace string function for the built-in editor
754 void replace_string(char *filename, long int startpos) {
762 int substitutions = 0;
766 newprompt("Enter text to be replaced: ", srch_str, (sizeof(srch_str) - 1));
767 if (IsEmptyStr(srch_str)) {
771 newprompt("Enter text to replace it with: ", rplc_str, (sizeof(rplc_str) - 1));
773 fp = fopen(filename, "r+");
779 fseek(fp, startpos, 0);
781 while (a = getc(fp), a > 0) {
783 buf[strlen(buf) + 1] = 0;
784 buf[strlen(buf)] = a;
785 if (strlen(buf) >= strlen(srch_str)) {
786 ptr = (&buf[strlen(buf) - strlen(srch_str)]);
787 if (!strncmp(ptr, srch_str, strlen(srch_str))) {
788 strcpy(ptr, rplc_str);
792 if (strlen(buf) > 384) {
795 rv = fwrite((char *) buf, 128, 1, fp);
797 scr_printf("failed to replace string: %s\n", strerror(errno));
800 strcpy(buf, &buf[128]);
806 if (!IsEmptyStr(buf)) {
807 rv = fwrite((char *) buf, strlen(buf), 1, fp);
811 rv = truncate(filename, wpos);
812 scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
816 // Function to begin composing a new message
817 int client_make_message(CtdlIPC * ipc,
818 char *filename, // temporary file name
819 char *recipient, // NULL if it's not mail
823 char *subject, // buffer to store subject line
833 if ((mode == 2) && (IsEmptyStr(editor_path))) {
834 scr_printf("*** No editor available; using built-in editor.\n");
839 time_t now = time(NULL);
840 localtime_r(&now, &thetime);
841 strftime(datestr, sizeof datestr, "%F %R", &thetime);
844 if (room_flags & QR_ANONONLY && !recipient) {
845 snprintf(header, sizeof header, " ****");
848 snprintf(header, sizeof header, " %s from %s", datestr, (is_anonymous ? "[anonymous]" : fullname));
849 if (!IsEmptyStr(recipient)) {
850 size_t tmp = strlen(header);
851 snprintf(&header[tmp], sizeof header - tmp, " to %s", recipient);
854 scr_printf("%s\n", header);
856 if (!IsEmptyStr(subject)) {
857 scr_printf("Subject: %s\n", subject);
860 if ((subject_required) && (IsEmptyStr(subject))) {
861 newprompt("Subject: ", subject, 70);
865 scr_printf("(Press ctrl-d when finished)\n");
869 fp = fopen(filename, "r");
871 fmout(screenwidth, fp, NULL, NULL, 0);
874 scr_printf("failed to get stream position %s\n", strerror(errno));
878 fp = fopen(filename, "w");
880 scr_printf("*** Error opening temp file!\n %s: %s\n", filename, strerror(errno));
890 fp = fopen(filename, "r+");
892 scr_printf("*** Error opening temp file!\n %s: %s\n", filename, strerror(errno)
901 fp = fopen(filename, "a");
903 scr_printf("*** Error opening temp file!\n" " %s: %s\n", filename, strerror(errno));
923 default: /* allow 2+ modes */
924 e_ex_code = 1; /* start with a failed exit code */
925 stty_ctdl(SB_RESTORE);
927 cksum = file_checksum(filename);
928 if (editor_pid == 0) {
931 chmod(filename, 0600);
932 snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
934 execlp(editor_path, editor_path, filename, NULL);
940 b = ka_wait(&e_ex_code);
941 } while ((b != editor_pid) && (b >= 0));
947 MECR: if (mode >= 2) {
948 if (file_checksum(filename) == cksum) {
949 scr_printf("*** Aborted message.\n");
952 if (e_ex_code == 0) {
958 b = keymenu("Entry command (? for options)",
975 scr_printf(" %s from %s", datestr, fullname);
976 if (!IsEmptyStr(recipient)) {
977 scr_printf(" to %s", recipient);
981 if (!IsEmptyStr(subject)) {
982 scr_printf("Subject: %s\n", subject);
984 fp = fopen(filename, "r");
986 fmout(screenwidth, fp, NULL, NULL, 0);
989 scr_printf("failed to get stream position %s\n", strerror(errno));
995 replace_string(filename, 0L);
1002 if (subject != NULL) {
1003 newprompt("Subject: ", subject, 70);
1010 MEABT: scr_printf("Are you sure? ");
1014 MEABT2: unlink(filename);
1020 * Make sure there's room in msg_arr[] for at least one more.
1022 void check_msg_arr_size(void) {
1023 if ((num_msgs + 1) > msg_arr_size) {
1024 msg_arr_size += 512;
1025 msg_arr = realloc(msg_arr, ((sizeof(long)) * msg_arr_size));
1031 * break_big_lines() - break up lines that are >1024 characters
1032 * otherwise the server will truncate
1034 void break_big_lines(char *msg) {
1043 while (strlen(ptr) > 1000) {
1044 break_here = strchr(&ptr[900], ' ');
1045 if ((break_here == NULL) || (break_here > &ptr[999])) {
1046 break_here = &ptr[999];
1055 * entmsg() - edit and create a message
1056 * returns 0 if message was saved
1058 int entmsg(CtdlIPC * ipc, int is_reply, /* nonzero if this was a <R>eply command */
1060 int masquerade /* prompt for a non-default display name? */
1069 struct ctdlipcmessage message;
1070 unsigned long *msgarr = NULL;
1071 int r; /* IPC response code */
1072 int subject_required = 0;
1075 * First, check to see if we have permission to enter a message in
1076 * this room. The server will return an error code if we can't.
1078 if (entmsg_ok == ENTMSG_OK_YES) {
1079 /* no problem, go right ahead */
1081 else if (entmsg_ok == ENTMSG_OK_BLOG) {
1083 scr_printf("WARNING: this is a BLOG room.\n");
1084 scr_printf("The '<E>nter Message' command will create a BLOG POST.\n");
1085 scr_printf("If you want to leave a comment or reply to a comment, use the '<R>eply' command.\n");
1086 scr_printf("Do you really want to create a new blog post? ");
1093 scr_printf("You may not enter messages in this type of room.\n");
1104 strcpy(subject, "");
1106 strcpy(message.recipient, "");
1107 strcpy(message.author, "");
1108 strcpy(message.subject, "");
1109 strcpy(message.references, "");
1110 message.text = ""; /* point to "", changes later */
1111 message.anonymous = 0;
1112 message.type = mode;
1115 newprompt("Display name for this message: ", message.author, 40);
1120 if (!IsEmptyStr(reply_subject)) {
1121 if (!strncasecmp(reply_subject, "Re: ", 3)) {
1122 strcpy(message.subject, reply_subject);
1125 snprintf(message.subject, sizeof message.subject, "Re: %s", reply_subject);
1129 /* Trim down excessively long lists of thread references. We eliminate the
1130 * second one in the list so that the thread root remains intact.
1132 int rrtok = num_tokens(reply_references, '|');
1133 int rrlen = strlen(reply_references);
1134 if (((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10)) {
1135 remove_token(reply_references, 1, '|');
1138 snprintf(message.references, sizeof message.references, "%s%s%s",
1139 reply_references, (IsEmptyStr(reply_references) ? "" : "|"), reply_inreplyto);
1142 r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1144 if (r / 100 != 2 && r / 10 != 57) {
1145 scr_printf("%s\n", buf);
1149 /* Error code 570 is special. It means that we CAN enter a message
1150 * in this room, but a recipient needs to be specified.
1157 /* If the user is a dumbass, tell them how to type. */
1158 if ((userflags & US_EXPERT) == 0) {
1159 scr_printf("Entering message. Word wrap will give you soft linebreaks. Pressing the\n");
1160 scr_printf("'enter' key will give you a hard linebreak and an indent. Press 'enter' twice\n");
1161 scr_printf("when finished.\n");
1164 /* Handle the selection of a recipient, if necessary. */
1166 if (need_recp == 1) {
1167 if (axlevel >= AxProbU) {
1169 strcpy(buf, reply_to);
1172 newprompt("Enter recipient: ", buf, SIZ - 100);
1173 if (IsEmptyStr(buf)) {
1179 strcpy(buf, "sysop");
1182 strcpy(message.recipient, buf);
1184 if (room_flags & QR_ANONOPT) {
1185 scr_printf("Anonymous (Y/N)? ");
1187 message.anonymous = 1;
1190 /* If it's mail, we've got to check the validity of the recipient... */
1191 if (!IsEmptyStr(message.recipient)) {
1192 r = CtdlIPCPostMessage(ipc, 0, &subject_required, &message, buf);
1194 scr_printf("%s\n", buf);
1199 /* Learn the number of the newest message in in the room, so we can
1200 * tell upon saving whether someone else has posted too.
1203 r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1205 scr_printf("%s\n", buf);
1208 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++);
1211 /* Now compose the message... */
1212 if (client_make_message(ipc, temp, message.recipient, message.anonymous, 0, c, message.subject, subject_required) != 0) {
1218 /* Reopen the temp file that was created, so we can send it */
1219 fp = fopen(temp, "r");
1221 if (!fp || !(message.text = load_message_from_file(fp))) {
1222 scr_printf("*** Internal error while trying to save message!\n" "%s: %s\n", temp, strerror(errno));
1230 /* Break lines that are >1024 characters, otherwise the server
1231 * will truncate them.
1233 break_big_lines(message.text);
1235 /* Transmit message to the server */
1236 r = CtdlIPCPostMessage(ipc, 1, NULL, &message, buf);
1238 scr_printf("%s\n", buf);
1242 /* Yes, unlink it now, so it doesn't stick around if we crash */
1246 highmsg = msgarr[num_msgs - 1];
1251 r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1253 scr_printf("%s\n", buf);
1256 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++);
1259 /* get new highest message number in room to set lrp for goto... */
1260 maxmsgnum = msgarr[num_msgs - 1];
1262 /* now see if anyone else has posted in here */
1264 for (a = 0; a < num_msgs; ++a) {
1265 if (msgarr[a] > highmsg) {
1274 /* In the Mail> room, this algorithm always counts one message
1275 * higher than in public rooms, so we decrement it by one.
1282 scr_printf("*** 1 additional message has been entered in this room by another user.\n");
1285 scr_printf("*** %d additional messages have been entered in this room by other users.\n", b);
1294 * Do editing on a quoted file
1296 void process_quote(void) {
1297 FILE *qfile, *tfile;
1299 int line, qstart, qend;
1301 // Unlink the second temp file as soon as it's opened, so it'll get
1302 // deleted even if the program dies
1303 qfile = fopen(temp2, "r");
1306 /* Display the quotable text with line numbers added */
1308 if (fgets(buf, 128, qfile) == NULL) {
1309 /* we're skipping a line here */
1311 while (fgets(buf, 128, qfile) != NULL) {
1312 scr_printf("%3d %s", ++line, buf);
1315 qstart = intprompt("Begin quoting at", 1, 1, line);
1316 qend = intprompt(" End quoting at", line, qstart, line);
1320 if (fgets(buf, 128, qfile) == NULL) {
1321 /* we're skipping a line here */
1323 tfile = fopen(temp, "w");
1324 while (fgets(buf, 128, qfile) != NULL) {
1325 if ((++line >= qstart) && (line <= qend)) {
1326 fprintf(tfile, " >%s", buf);
1329 fprintf(tfile, " \n");
1337 * List the URLs which were embedded in the previous message
1339 void list_urls(CtdlIPC * ipc) {
1344 if (num_urls == 0) {
1345 scr_printf("There were no URLs in the previous message.\n\n");
1349 for (i = 0; i < num_urls; ++i) {
1350 scr_printf("%3d %s\n", i + 1, urls[i]);
1353 if ((i = num_urls) != 1) {
1354 i = intprompt("Display which one", 1, 1, num_urls);
1357 snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1364 * Run image viewer in background
1366 int do_image_view(const char *filename) {
1370 snprintf(cmd, sizeof cmd, imagecmd, filename);
1377 if (childpid == 0) {
1379 pid_t grandchildpid;
1381 grandchildpid = fork();
1382 if (grandchildpid < 0) {
1383 return grandchildpid;
1386 if (grandchildpid == 0) {
1391 nullfd = open("/dev/null", O_WRONLY);
1398 retcode = system(cmd);
1408 if (grandchildpid > 0) {
1416 waitpid(childpid, &retcode, 0);
1425 * View an image attached to a message
1427 void image_view(CtdlIPC * ipc, unsigned long msg) {
1428 struct parts *ptr = last_message_parts;
1432 /* Run through available parts */
1433 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1434 if ((!strcasecmp(ptr->disposition, "attachment")
1435 || !strcasecmp(ptr->disposition, "inline"))
1436 && !strncmp(ptr->mimetype, "image/", 6)) {
1439 strcpy(part, ptr->number);
1446 strprompt("View which part (0 when done)", part, SIZ - 1);
1448 for (ptr = last_message_parts; ptr; ptr = ptr->next) {
1449 if ((!strcasecmp(ptr->disposition, "attachment")
1450 || !strcasecmp(ptr->disposition, "inline"))
1451 && !strncmp(ptr->mimetype, "image/", 6)
1452 && !strcasecmp(ptr->number, part)) {
1455 void *file = NULL; /* The downloaded file */
1460 r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
1462 scr_printf("%s\n", buf);
1466 len = (size_t) extract_long(buf, 0);
1467 progress(ipc, len, len);
1469 CtdlMakeTempFileName(tmp, sizeof tmp);
1470 strcat(tmp, ptr->filename);
1471 save_buffer(file, len, tmp);
1485 * Read the messages in the current room
1487 void readmsgs(CtdlIPC *ipc,
1488 enum MessageList c, // see listing in citadel_ipc.h
1489 enum MessageDirection rdir, // 1=Forward (-1)=Reverse
1490 int q // Number of msgs to read (if c==3)
1492 int a, e, f, g, start;
1498 char prtfile[PATH_MAX];
1501 char targ[ROOMNAMELEN];
1502 char filename[PATH_MAX];
1503 char save_to[PATH_MAX];
1504 void *attachment = NULL; /* Downloaded attachment */
1505 FILE *dest = NULL; /* Alternate destination other than screen */
1506 int r; /* IPC response code */
1507 static int att_seq = 0; /* Attachment download sequence number */
1508 int rv = 0; /* silence the stupid warn_unused_result warnings */
1510 CtdlMakeTempFileName(prtfile, sizeof prtfile);
1516 r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1518 scr_printf("%s\n", cmd);
1521 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++);
1524 if (num_msgs == 0) {
1525 if (c == LastMessages) {
1528 scr_printf("*** There are no ");
1529 if (c == NewMessages)
1531 if (c == OldMessages)
1533 scr_printf("messages in this room.\n");
1537 /* this loop cycles through each message... */
1538 start = ((rdir == 1) ? 0 : (num_msgs - 1));
1539 for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1540 while (msg_arr[a] == 0L) {
1542 if ((a == num_msgs) || (a == (-1)))
1546 RAGAIN:pagin = ((arcflag == 0)
1548 && (userflags & US_PAGINATOR)) ? 1 : 0;
1550 /* If we're doing a quote, set the screenwidth to 72 */
1552 hold_sw = screenwidth;
1556 /* If printing or archiving, set the screenwidth to 80 */
1558 hold_sw = screenwidth;
1562 /* clear parts list */
1563 free_parts(last_message_parts);
1564 last_message_parts = NULL;
1566 /* now read the message... */
1567 e = read_message(ipc, msg_arr[a], pagin, dest);
1569 /* ...and set the screenwidth back if we have to */
1570 if ((quotflag) || (arcflag)) {
1571 screenwidth = hold_sw;
1574 highest_msg_read = msg_arr[a];
1579 enable_color = hold_color;
1588 enable_color = hold_color;
1591 if (freopen(prtfile, "r", stdin) == NULL) {
1592 /* we probably should handle the error condition here */
1594 stty_ctdl(SB_RESTORE);
1595 ka_system(printcmd);
1596 stty_ctdl(SB_NO_INTR);
1603 } while ((g != f) && (g >= 0));
1604 scr_printf("Message printed.\n");
1608 if (((userflags & US_NOPROMPT) || (e == SIGINT))
1609 && (((room_flags & QR_MAILBOX) == 0)
1610 || (rc_force_mail_prompts == 0))) {
1616 color(BRIGHT_WHITE);
1617 scr_printf("%d", num_msgs - a - 1);
1621 keyopt("<B>ack <A>gain <R>eply reply<Q>uoted <N>ext <S>top ");
1622 if (rc_url_cmd[0] && num_urls)
1623 keyopt("<U>RLview ");
1624 if (has_images > 0 && !IsEmptyStr(imagecmd))
1625 keyopt("<I>mages ");
1626 keyopt("<?>help -> ");
1629 e = (inkey() & 127);
1631 /* return key same as <N> */ if (e == 10)
1633 /* space key same as <N> */ if (e == 32)
1635 /* del/move for aides only */
1637 && ((room_flags & QR_MAILBOX) == 0)
1638 && ((room_flags2 & QR2_COLLABDEL) == 0)
1640 if ((e == 'd') || (e == 'm'))
1643 /* print only if available */
1644 if ((e == 'p') && (IsEmptyStr(printcmd)))
1646 /* can't file if not allowed */
1648 && (rc_allow_attachments == 0))
1650 /* link only if browser avail*/
1652 && (IsEmptyStr(rc_url_cmd)))
1655 && (IsEmptyStr(imagecmd) || !has_images))
1657 } while ((e != 'a') && (e != 'n') && (e != 's')
1658 && (e != 'd') && (e != 'm') && (e != 'p')
1659 && (e != 'q') && (e != 'b') && (e != 'h')
1660 && (e != 'r') && (e != 'f') && (e != '?')
1661 && (e != 'u') && (e != 'c') && (e != 'y')
1662 && (e != 'i') && (e != 'o'));
1668 scr_printf("Again");
1671 scr_printf("Delete");
1683 scr_printf("Print");
1686 scr_printf("reply Quoted");
1692 scr_printf("Header");
1695 scr_printf("Reply");
1698 scr_printf("Open attachments");
1704 scr_printf("URL's");
1707 scr_printf("mY next");
1712 scr_printf("? <help>");
1715 if (userflags & US_DISAPPEAR || e == 'i')
1716 scr_printf("\r%79s\r", "");
1720 DONE_QUOTING:switch (e) {
1722 scr_printf("Options available here:\n"
1723 " ? Help (prints this message)\n"
1724 " S Stop reading immediately\n"
1725 " A Again (repeats last message)\n"
1726 " N Next (continue with next message)\n"
1727 " Y My Next (continue with next message you authored)\n"
1728 " B Back (go back to previous message)\n");
1729 if ((is_room_aide) || (room_flags & QR_MAILBOX) || (room_flags2 & QR2_COLLABDEL)) {
1730 scr_printf(" D Delete this message\n" " M Move message to another room\n");
1732 scr_printf(" C Copy message to another room\n");
1733 if (!IsEmptyStr(printcmd))
1734 scr_printf(" P Print this message\n");
1735 scr_printf(" Q Reply to this message, quoting portions of it\n"
1736 " H Headers (display message headers only)\n");
1738 scr_printf(" R Reply to this message\n");
1739 if (rc_allow_attachments) {
1740 scr_printf(" O (Open attachments)\n");
1741 scr_printf(" F (save attachments to a File)\n");
1743 if (!IsEmptyStr(rc_url_cmd))
1744 scr_printf(" U (list URL's for display)\n");
1745 if (!IsEmptyStr(imagecmd) && has_images > 0)
1746 scr_printf(" I Image viewer\n");
1751 dest = fopen(prtfile, "w");
1753 hold_color = enable_color;
1758 dest = fopen(temp2, "w");
1760 hold_color = enable_color;
1772 newprompt("Enter target room: ", targ, ROOMNAMELEN - 1);
1773 if (!IsEmptyStr(targ)) {
1774 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0), msg_arr[a], targ, cmd);
1775 scr_printf("%s\n", cmd);
1782 if (r / 100 != 2) /* r will be init'ed, FIXME */
1783 goto RMSGREAD; /* the logic here sucks */
1787 newprompt("Which section? ", filename, ((sizeof filename) - 1));
1788 r = CtdlIPCAttachmentDownload(ipc, msg_arr[a], filename, &attachment, progress, cmd);
1790 scr_printf("%s\n", cmd);
1793 extract_token(filename, cmd, 2, '|', sizeof filename);
1795 * Part 1 won't have a filename; use the
1796 * subject of the message instead. IO
1798 if (IsEmptyStr(filename)) {
1799 strcpy(filename, reply_subject);
1801 if (e == 'o') { /* open attachment */
1802 mkdir(tempdir, 0700);
1803 snprintf(save_to, sizeof save_to, "%s/%04x.%s", tempdir, ++att_seq, filename);
1804 save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1805 snprintf(cmd, sizeof cmd, rc_open_cmd, save_to);
1808 scr_printf("failed to save %s Reason %d\n", cmd, rv);
1810 else { /* save attachment to disk */
1811 destination_directory(save_to, filename);
1812 save_buffer(attachment, extract_unsigned_long(cmd, 0), save_to);
1821 scr_printf("*** Delete this message? ");
1823 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1824 scr_printf("%s\n", cmd);
1833 read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1836 savedpos = num_msgs;
1837 entmsg(ipc, 1, ((userflags & US_EXTEDIT) ? 2 : 0), 0);
1838 num_msgs = savedpos;
1844 image_view(ipc, msg_arr[a]);
1847 { /* hack hack hack */
1848 /* find the next message by me, stay here if we find nothing */
1851 for (finda = (a + rdir); ((finda < num_msgs) && (finda >= 0)); finda += rdir) {
1852 /* This is repetitively dumb, but that's what computers are for.
1853 We have to load up messages until we find one by us */
1856 struct ctdlipcmessage *msg = NULL;
1858 /* read the header so we can get 'from=' */
1859 r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
1860 if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
1861 a = lasta; /* meesa current */
1869 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1873 } /* end for loop */
1874 } /* end read routine */
1878 * View and edit a system message
1880 void edit_system_message(CtdlIPC * ipc, char *which_message) {
1883 char write_cmd[SIZ];
1885 snprintf(desc, sizeof desc, "system message '%s'", which_message);
1886 snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1887 snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1888 do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1893 * Loads the contents of a file into memory. Caller must free the allocated memory.
1895 char *load_message_from_file(FILE * src) {
1900 fseek(src, 0, SEEK_END);
1904 dest = (char *) calloc(1, i + 1);
1911 g = fread(dest + got, 1, i - got, src);
1914 /* Interrupted system call, keep going */
1917 /* At this point we have either EOF or error */