]> code.citadel.org Git - citadel.git/blobdiff - citadel/messages.c
* Variable names, comments, documentation, etc... removed the acronym 'BBS'
[citadel.git] / citadel / messages.c
index cfd9aa41b07bc638dbc395517d85526611be6066..701ad9d2a0a288a992ea2ebad4fe515984d282c4 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * $Id$
  *
- * Citadel/UX message support routines
+ * Citadel message support routines
  * see copyright.txt for copyright information
  */
 
 # endif
 #endif
 
+#ifdef HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+
 #include <stdarg.h>
 #include "citadel.h"
+#include "citadel_ipc.h"
 #include "citadel_decls.h"
 #include "messages.h"
 #include "commands.h"
 #include "rooms.h"
 #include "tools.h"
 #include "html.h"
-#include "citadel_ipc.h"
 #ifndef HAVE_SNPRINTF
 #include "snprintf.h"
 #endif
@@ -55,24 +59,20 @@ struct cittext {
        char text[MAXWORDBUF];
 };
 
-void sttybbs(int cmd);
+void stty_ctdl(int cmd);
 int haschar(const char *st, int ch);
-int checkpagin(int lp, int pagin, int height);
 void getline(char *string, int lim);
-void formout(char *name);
-int yesno(void);
-void newprompt(char *prompt, char *str, int len);
 int file_checksum(char *filename);
-void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
+void progress(CtdlIPC* ipc, unsigned long curr, unsigned long cmax);
 
-long *msg_arr = NULL;
+unsigned long *msg_arr = NULL;
 int msg_arr_size = 0;
 int num_msgs;
 char rc_alt_semantics;
+char rc_reply_extedit;
 extern char room_name[];
 extern unsigned room_flags;
 extern long highest_msg_read;
-extern struct CtdlServInfo serv_info;
 extern char temp[];
 extern char temp2[];
 extern int screenwidth;
@@ -85,19 +85,25 @@ extern char fullname[];
 extern char axlevel;
 extern unsigned userflags;
 extern char sigcaught;
-extern char editor_path[];
 extern char printcmd[];
 extern int rc_allow_attachments;
 extern int rc_display_message_numbers;
 extern int rc_force_mail_prompts;
-
 extern int editor_pid;
+extern CtdlIPC *ipc_for_signal_handlers;       /* KLUDGE cover your eyes */
+int num_urls = 0;
+char urls[MAXURLS][SIZ];
+char imagecmd[SIZ];
+int has_images = 0;                            /* Current msg has images */
+struct parts *last_message_parts = NULL;       /* Parts from last msg */
+
+
 
 void ka_sigcatch(int signum)
 {
        alarm(S_KEEPALIVE);
        signal(SIGALRM, ka_sigcatch);
-       CtdlIPCNoop();
+       CtdlIPCNoop(ipc_for_signal_handlers);
 }
 
 
@@ -204,7 +210,7 @@ void add_word(struct cittext *textlist, char *wordbuf)
 /*
  * begin editing of an opened file pointed to by fp
  */
-void citedit(FILE * fp)
+void citedit(CtdlIPC *ipc, FILE * fp)
 {
        int a, prev, finished, b, last_space;
        int appending = 0;
@@ -351,11 +357,30 @@ void citedit(FILE * fp)
        }
 }
 
-/* Read a message from the server
+
+/*
+ * Free the struct parts
+ */
+void free_parts(struct parts *p)
+{
+       struct parts *a_part = p;
+
+       while (a_part) {
+               struct parts *q;
+
+               q = a_part;
+               a_part = a_part->next;
+               free(q);
+       }
+}
+
+
+/*
+ * Read a message from the server
  */
-int read_message(
+int read_message(CtdlIPC *ipc,
        long num,   /* message number */
-       char pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
+       int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
        FILE *dest) /* Destination file, NULL for screen */
 {
        char buf[SIZ];
@@ -366,14 +391,23 @@ int read_message(
        struct ctdlipcmessage *message = NULL;
        int r;                          /* IPC response code */
        char *converted_text = NULL;
+       char *lineptr;
+       char *nextline;
+       char *searchptr;
+       int i;
+       char ch;
+       int linelen;
+       int final_line_is_blank = 0;
+
+       has_images = 0;
 
        sigcaught = 0;
-       sttybbs(1);
+       stty_ctdl(1);
 
        strcpy(reply_to, NO_REPLY_TO);
        strcpy(reply_subject, "");
 
-       r = CtdlIPCGetSingleMessage(num, (pagin == READ_HEADER ? 1 : 0),
+       r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
                                (can_do_msg4 ? 4 : 0),
                                &message, buf);
        if (r / 100 != 1) {
@@ -381,7 +415,7 @@ int read_message(
                ++lines_printed;
                lines_printed =
                    checkpagin(lines_printed, pagin, screenheight);
-               sttybbs(0);
+               stty_ctdl(0);
                return (0);
        }
 
@@ -391,7 +425,8 @@ int read_message(
                scr_printf("\n");
                ++lines_printed;
                lines_printed = checkpagin(lines_printed, pagin, screenheight);
-               scr_printf(" ");
+               if (pagin != 2)
+                       scr_printf(" ");
        }
        if (pagin == 1 && !dest) {
                color(BRIGHT_CYAN);
@@ -399,39 +434,35 @@ int read_message(
 
        /* View headers only */
        if (pagin == 2) {
-               sprintf(buf, "nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
+               pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
                                message->nhdr ? "yes" : "no",
                                message->author, message->type,
                                message->msgid);
-               /* FIXME output buf */
                if (strlen(message->subject)) {
-                       sprintf(buf, "subj=%s\n", message->subject);
-                       /* FIXME: output buf */
+                       pprintf("subj=%s\n", message->subject);
                }
                if (strlen(message->email)) {
-                       sprintf(buf, "rfca=%s\n", message->email);
-                       /* FIXME: output buf */
+                       pprintf("rfca=%s\n", message->email);
                }
-               sprintf(buf, "hnod=%s\nroom=%s\nnode=%s\ntime=%s",
+               pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
                                message->hnod, message->room,
                                message->node, 
                                asctime(localtime(&message->time)));
                if (strlen(message->recipient)) {
-                       sprintf(buf, "rcpt=%s\n", message->recipient);
-                       /* FIXME: output buf */
+                       pprintf("rcpt=%s\n", message->recipient);
                }
                if (message->attachments) {
                        struct parts *ptr;
 
                        for (ptr = message->attachments; ptr; ptr = ptr->next) {
-                               sprintf(buf, "part=%s|%s|%s|%s|%s|%ld\n",
+                               pprintf("part=%s|%s|%s|%s|%s|%ld\n",
                                        ptr->name, ptr->filename, ptr->number,
                                        ptr->disposition, ptr->mimetype,
                                        ptr->length);
-                               /* FIXME: output buf */
                        }
                }
-               sttybbs(0);
+               pprintf("\n");
+               stty_ctdl(0);
                return (0);
        }
 
@@ -478,8 +509,8 @@ int read_message(
                }
                if (strlen(message->node)) {
                        if ((room_flags & QR_NETWORK)
-                           || ((strcasecmp(message->node, serv_info.serv_nodename)
-                            && (strcasecmp(message->node, serv_info.serv_fqdn))))) {
+                           || ((strcasecmp(message->node, ipc->ServInfo.nodename)
+                            && (strcasecmp(message->node, ipc->ServInfo.fqdn))))) {
                                if (strlen(message->email) == 0) {
                                        if (dest) {
                                                fprintf(dest, "@%s ", message->node);
@@ -492,7 +523,7 @@ int read_message(
                                }
                        }
                }
-               if (strcasecmp(message->hnod, serv_info.serv_humannode)
+               if (strcasecmp(message->hnod, ipc->ServInfo.humannode)
                    && (strlen(message->hnod)) && (!strlen(message->email))) {
                        if (dest) {
                                fprintf(dest, "(%s) ", message->hnod);
@@ -546,8 +577,6 @@ int read_message(
                         message->author, message->node);
        }
 
-       if (pagin == 1 && !dest)
-               color(BRIGHT_WHITE);
        if (!dest) {
                ++lines_printed;
                lines_printed = checkpagin(lines_printed, pagin, screenheight);
@@ -561,7 +590,10 @@ int read_message(
                                fprintf(dest, "Subject: %s\n",
                                                        message->subject);
                        } else {
-                               scr_printf("Subject: %s\n", message->subject);
+                               color(DIM_WHITE);
+                               scr_printf("Subject: ");
+                               color(BRIGHT_CYAN);
+                               scr_printf("%s\n", message->subject);
                                ++lines_printed;
                                lines_printed = checkpagin(lines_printed,
                                                pagin, screenheight);
@@ -569,6 +601,10 @@ int read_message(
                }
        }
 
+       if (pagin == 1 && !dest) {
+               color(BRIGHT_WHITE);
+       }
+
        /******* end of header output, start of message text output *******/
 
        /*
@@ -584,6 +620,31 @@ int read_message(
                }
        }
 
+       /* Text/plain is a different type */
+       if (!strcasecmp(message->content_type, "text/plain")) {
+               format_type = 1;
+       }
+
+       /* Extract URL's */
+       num_urls = 0;   /* Start with a clean slate */
+       searchptr = message->text;
+       while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
+               searchptr = strstr(searchptr, "http://");
+               if (searchptr != NULL) {
+                       safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
+                       for (i = 0; i < strlen(urls[num_urls]); i++) {
+                               ch = urls[num_urls][i];
+                               if (ch == '>' || ch == '\"' || ch == ')' ||
+                                   ch == ' ' || ch == '\n') {
+                                       urls[num_urls][i] = 0;
+                                       break;
+                               }
+                       }
+                       num_urls++;
+                       ++searchptr;
+               }
+       }
+
        /*
         * Here we go
         */
@@ -591,39 +652,84 @@ int read_message(
                fr = fmout(screenwidth, NULL, message->text, dest,
                           ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
        } else {
-               int i;
+               /* renderer for text/plain */
+
+               lineptr = message->text;
+
+               do {
+                       nextline = strchr(lineptr, '\n');
+                       if (nextline != NULL) {
+                               *nextline = 0;
+                               ++nextline;
+                               if (*nextline == 0) nextline = NULL;
+                       }
 
-               for (i = 0; i < num_tokens(message->text, '\n'); i++) {
                        if (sigcaught == 0) {
-                               extract_token(buf, message->text, i, '\n');
+                               linelen = strlen(lineptr);
+                               if (lineptr[linelen-1] == '\r') {
+                                       lineptr[--linelen] = 0;
+                               }
                                if (dest) {
-                                       fprintf(dest, "%s\n", buf);
+                                       fprintf(dest, "%s\n", lineptr);
                                } else {
-                                       scr_printf("%s\n", buf);
+                                       scr_printf("%s\n", lineptr);
                                        lines_printed = lines_printed + 1 +
-                                           (strlen(buf) / screenwidth);
+                                           (linelen / screenwidth);
                                        lines_printed =
                                            checkpagin(lines_printed, pagin,
                                                       screenheight);
                                }
                        }
-               }
+                       if (lineptr[0] == 0) final_line_is_blank = 1;
+                       else final_line_is_blank = 0;
+                       lineptr = nextline;
+               } while (nextline);
                fr = sigcaught;
        }
-       if (dest) {
-               fprintf(dest, "\n");
-       } else {
-               scr_printf("\n");
-               /* scr_flush(); */
-               ++lines_printed;
-               lines_printed = checkpagin(lines_printed, pagin, screenheight);
+       if (!final_line_is_blank) {
+               if (dest) {
+                       fprintf(dest, "\n");
+               }
+               else {
+                       scr_printf("\n");
+                       ++lines_printed;
+                       lines_printed = checkpagin(lines_printed, pagin, screenheight);
+               }
        }
+
+       /* Enumerate any attachments */
+       if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
+               struct parts *ptr;
+
+               for (ptr = message->attachments; ptr; ptr = ptr->next) {
+                       if ( (!strcasecmp(ptr->disposition, "attachment"))
+                          || (!strcasecmp(ptr->disposition, "inline"))) {
+                               color(DIM_WHITE);
+                               pprintf("Part ");
+                               color(BRIGHT_MAGENTA);
+                               pprintf("%s", ptr->number);
+                               color(DIM_WHITE);
+                               pprintf(": ");
+                               color(BRIGHT_CYAN);
+                               pprintf("%s", ptr->filename);
+                               color(DIM_WHITE);
+                               pprintf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
+                               if (!strncmp(ptr->mimetype, "image/", 6))
+                                       has_images++;
+                       }
+               }
+       }
+
+       /* Save the attachments info for later */
+       last_message_parts = message->attachments;
+
+       /* Now we're done */
        free(message->text);
        free(message);
 
        if (pagin == 1 && !dest)
                color(DIM_WHITE);
-       sttybbs(0);
+       stty_ctdl(0);
        return (fr);
 }
 
@@ -689,9 +795,10 @@ void replace_string(char *filename, long int startpos)
 /*
  * Function to begin composing a new message
  */
-int client_make_message(char *filename,        /* temporary file name */
+int client_make_message(CtdlIPC *ipc,
+               char *filename,         /* temporary file name */
                char *recipient,        /* NULL if it's not mail */
-               int anon_type,          /* see MES_ types in header file */
+               int is_anonymous,
                int format_type,
                int mode,
                char *subject)          /* buffer to store subject line */
@@ -701,14 +808,21 @@ int client_make_message(char *filename,   /* temporary file name */
        long beg;
        char datestr[SIZ];
        char header[SIZ];
+       char *editor_path = NULL;
        int cksum = 0;
 
-       if (mode == 2)
-               if (strlen(editor_path) == 0) {
-                       err_printf
-                           ("*** No editor available, using built-in editor\n");
+       if (mode >= 2)
+       {
+               if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
+                       editor_path = editor_paths[mode-2];
+               } else if (strlen(editor_paths[0]) > 0) {
+                       editor_path = editor_paths[0];
+               } else {
+                       err_printf("*** No editor available, "
+                               "using built-in editor\n");
                        mode = 0;
                }
+       }
 
        fmt_date(datestr, sizeof datestr, time(NULL), 0);
        header[0] = 0;
@@ -718,7 +832,10 @@ int client_make_message(char *filename,    /* temporary file name */
        }
        else {
                snprintf(header, sizeof header,
-                       " %s from %s", datestr, fullname);
+                       " %s from %s",
+                       datestr,
+                       (is_anonymous ? "[anonymous]" : fullname)
+                       );
                if (strlen(recipient) > 0) {
                        size_t tmp = strlen(header);
                        snprintf(&header[tmp], sizeof header - tmp,
@@ -739,7 +856,8 @@ int client_make_message(char *filename,     /* temporary file name */
        if (mode == 0) {
                fp = fopen(filename, "r");
                if (fp != NULL) {
-                       fmout(screenwidth, fp, NULL, NULL, 0, screenheight, 0, 0);
+                       fmout(screenwidth, fp, NULL, NULL, 0,
+                               screenheight, 0, 0);
                        beg = ftell(fp);
                        fclose(fp);
                } else {
@@ -764,7 +882,7 @@ ME1:        switch (mode) {
                                filename, strerror(errno));
                        return(1);
                }
-               citedit(fp);
+               citedit(ipc, fp);
                fclose(fp);
                goto MECR;
 
@@ -793,15 +911,16 @@ ME1:      switch (mode) {
                break;
 
        case 2:
+       default:        /* allow 2+ modes */
                e_ex_code = 1;  /* start with a failed exit code */
+               screen_reset();
+               stty_ctdl(SB_RESTORE);
                editor_pid = fork();
                cksum = file_checksum(filename);
                if (editor_pid == 0) {
                        char tmp[SIZ];
 
                        chmod(filename, 0600);
-                       screen_reset();
-                       sttybbs(SB_RESTORE);
                        snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
                        putenv(tmp);
                        execlp(editor_path, editor_path, filename, NULL);
@@ -813,12 +932,12 @@ ME1:      switch (mode) {
                                b = ka_wait(&e_ex_code);
                        } while ((b != editor_pid) && (b >= 0));
                editor_pid = (-1);
-               sttybbs(0);
+               stty_ctdl(0);
                screen_set();
                break;
        }
 
-MECR:  if (mode == 2) {
+MECR:  if (mode >= 2) {
                if (file_checksum(filename) == cksum) {
                        err_printf("*** Aborted message.\n");
                        e_ex_code = 1;
@@ -881,13 +1000,15 @@ MEABT2:  unlink(filename);
        return (2);
 }
 
+
+#if 0
 /*
  * Transmit message text to the server.
  * 
  * This loop also implements a "tick" counter that displays the progress, if
  * we're sending something that will take a long time to transmit.
  */
-void transmit_message(FILE *fp)
+void transmit_message(CtdlIPC *ipc, FILE *fp)
 {
        char buf[SIZ];
        int ch, a;
@@ -903,7 +1024,7 @@ void transmit_message(FILE *fp)
                if (ch == 10) {
                        if (!strcmp(buf, "000"))
                                strcpy(buf, ">000");
-                       serv_puts(buf);
+                       CtdlIPC_putline(ipc, buf);
                        strcpy(buf, "");
                } else {
                        a = strlen(buf);
@@ -913,13 +1034,13 @@ void transmit_message(FILE *fp)
                                buf[a] = 0;
                                if (!strcmp(buf, "000"))
                                        strcpy(buf, ">000");
-                               serv_puts(buf);
+                               CtdlIPC_putline(ipc, buf);
                                strcpy(buf, "");
                        }
                        if (strlen(buf) > 250) {
                                if (!strcmp(buf, "000"))
                                        strcpy(buf, ">000");
-                               serv_puts(buf);
+                               CtdlIPC_putline(ipc, buf);
                                strcpy(buf, "");
                        }
                }
@@ -932,10 +1053,12 @@ void transmit_message(FILE *fp)
                }
 
        }
-       serv_puts(buf);
+       CtdlIPC_putline(ipc, buf);
        scr_printf("                \r");
        scr_flush();
 }
+#endif
+
 
 /*
  * Make sure there's room in msg_arr[] for at least one more.
@@ -954,17 +1077,20 @@ void check_msg_arr_size(void) {
  * entmsg()  -  edit and create a message
  *              returns 0 if message was saved
  */
-int entmsg(int is_reply,       /* nonzero if this was a <R>eply command */
-               int c)          /* */
+int entmsg(CtdlIPC *ipc,
+               int is_reply,   /* nonzero if this was a <R>eply command */
+               int c)          /* mode */
 {
-       char buf[300];
-       char cmd[SIZ];
+       char buf[SIZ];
        int a, b;
        int need_recp = 0;
        int mode;
        long highmsg = 0L;
        FILE *fp;
        char subject[SIZ];
+       struct ctdlipcmessage message;
+       unsigned long *msgarr = NULL;
+       int r;                  /* IPC response code */
 
        if (c > 0)
                mode = 1;
@@ -977,12 +1103,16 @@ int entmsg(int is_reply, /* nonzero if this was a <R>eply command */
         * First, check to see if we have permission to enter a message in
         * this room.  The server will return an error code if we can't.
         */
-       snprintf(cmd, sizeof cmd, "ENT0 0||0|%d", mode);
-       serv_puts(cmd);
-       serv_gets(cmd);
-
-       if ((strncmp(cmd, "570", 3)) && (strncmp(cmd, "200", 3))) {
-               scr_printf("%s\n", &cmd[4]);
+       strcpy(message.recipient, "");
+       strcpy(message.author, "");
+       strcpy(message.subject, "");
+       message.text = message.author;  /* point to "", changes later */
+       message.anonymous = 0;
+       message.type = mode;
+       r = CtdlIPCPostMessage(ipc, 0, &message, buf);
+
+       if (r / 100 != 2 && r / 10 != 57) {
+               scr_printf("%s\n", buf);
                return (1);
        }
 
@@ -990,12 +1120,12 @@ int entmsg(int is_reply, /* nonzero if this was a <R>eply command */
         * in this room, but a recipient needs to be specified.
         */
        need_recp = 0;
-       if (!strncmp(cmd, "570", 3))
+       if (r / 10 == 57)
                need_recp = 1;
 
        /* If the user is a dumbass, tell them how to type. */
        if ((userflags & US_EXPERT) == 0) {
-               formout("entermsg");
+               formout(ipc, "entermsg");
        }
 
        /* Handle the selection of a recipient, if necessary. */
@@ -1013,36 +1143,34 @@ int entmsg(int is_reply,        /* nonzero if this was a <R>eply command */
                } else
                        strcpy(buf, "sysop");
        }
+       strcpy(message.recipient, buf);
 
        if (is_reply) {
                if (strlen(reply_subject) > 0) {
                        if (!strncasecmp(reply_subject,
                           "Re: ", 3)) {
-                               strcpy(subject, reply_subject);
+                               strcpy(message.subject, reply_subject);
                        }
                        else {
-                               snprintf(subject,
-                                       sizeof subject,
+                               snprintf(message.subject,
+                                       sizeof message.subject,
                                        "Re: %s",
                                        reply_subject);
                        }
                }
        }
 
-       b = 0;
        if (room_flags & QR_ANONOPT) {
                scr_printf("Anonymous (Y/N)? ");
                if (yesno() == 1)
-                       b = 1;
+                       message.anonymous = 1;
        }
 
        /* If it's mail, we've got to check the validity of the recipient... */
-       if (strlen(buf) > 0) {
-               snprintf(cmd, sizeof cmd, "ENT0 0|%s|%d|%d|%s", buf, b, mode, subject);
-               serv_puts(cmd);
-               serv_gets(cmd);
-               if (cmd[0] != '2') {
-                       scr_printf("%s\n", &cmd[4]);
+       if (strlen(message.recipient) > 0) {
+               r = CtdlIPCPostMessage(ipc, 0, &message, buf);
+               if (r / 100 != 2) {
+                       scr_printf("%s\n", buf);
                        return (1);
                }
        }
@@ -1051,72 +1179,67 @@ int entmsg(int is_reply,        /* nonzero if this was a <R>eply command */
         * tell upon saving whether someone else has posted too.
         */
        num_msgs = 0;
-       serv_puts("MSGS LAST|1");
-       serv_gets(cmd);
-       if (cmd[0] != '1') {
-               scr_printf("%s\n", &cmd[5]);
+       r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
+       if (r / 100 != 1) {
+               scr_printf("%s\n", buf);
        } else {
-               while (serv_gets(cmd), strcmp(cmd, "000")) {
-                       check_msg_arr_size();
-                       msg_arr[num_msgs++] = atol(cmd);
-               }
+               for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
+                       ;
        }
 
        /* Now compose the message... */
-       if (client_make_message(temp, buf, b, 0, c, subject) != 0) {
+       if (client_make_message(ipc, temp, message.recipient,
+          message.anonymous, 0, c, message.subject) != 0) {
                return (2);
        }
 
        /* Reopen the temp file that was created, so we can send it */
        fp = fopen(temp, "r");
 
-       /* Yes, unlink it now, so it doesn't stick around if we crash */
-       unlink(temp);
-
-       if (fp == NULL) {
+       if (!fp || !(message.text = load_message_from_file(fp))) {
                err_printf("*** Internal error while trying to save message!\n"
-                       "    %s: %s\n",
+                       "%s: %s\n",
                        temp, strerror(errno));
+               unlink(temp);
                return(errno);
        }
 
+       if (fp) fclose(fp);
+
        /* Transmit message to the server */
-       snprintf(cmd, sizeof cmd, "ENT0 1|%s|%d|%d|%s|", buf, b, mode, subject);
-       serv_puts(cmd);
-       serv_gets(cmd);
-       if (cmd[0] != '4') {
-               scr_printf("%s\n", &cmd[4]);
+       r = CtdlIPCPostMessage(ipc, 1, &message, buf);
+       if (r / 100 != 4) {
+               scr_printf("%s\n", buf);
                return (1);
        }
 
-       transmit_message(fp);
-       serv_puts("000");
+       /* Yes, unlink it now, so it doesn't stick around if we crash */
+       unlink(temp);
 
-       fclose(fp);
+       if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
 
-       if (num_msgs >= 1) highmsg = msg_arr[num_msgs - 1];
-       num_msgs = 0;
-       serv_puts("MSGS NEW");
-       serv_gets(cmd);
-       if (cmd[0] != '1') {
-               scr_printf("%s\n", &cmd[5]);
+       if (msgarr) free(msgarr);
+       msgarr = NULL;
+       r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
+       if (r / 100 != 1) {
+               scr_printf("%s\n", buf);
        } else {
-               while (serv_gets(cmd), strcmp(cmd, "000")) {
-                       check_msg_arr_size();
-                       msg_arr[num_msgs++] = atol(cmd);
-               }
+               for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
+                       ;
        }
 
        /* get new highest message number in room to set lrp for goto... */
-       maxmsgnum = msg_arr[num_msgs - 1];
+       maxmsgnum = msgarr[num_msgs - 1];
 
        /* now see if anyone else has posted in here */
        b = (-1);
        for (a = 0; a < num_msgs; ++a) {
-               if (msg_arr[a] > highmsg) {
+               if (msgarr[a] > highmsg) {
                        ++b;
                }
        }
+       if (msgarr) free(msgarr);
+       msgarr = NULL;
 
        /* In the Mail> room, this algorithm always counts one message
         * higher than in public rooms, so we decrement it by one.
@@ -1183,7 +1306,7 @@ void process_quote(void)
 /*
  * List the URL's which were embedded in the previous message
  */
-void list_urls()
+void list_urls(CtdlIPC *ipc)
 {
        int i;
        char cmd[SIZ];
@@ -1205,12 +1328,137 @@ void list_urls()
        scr_printf("\n");
 }
 
+
+/*
+ * Run image viewer in background
+ */
+int do_image_view(const char *filename)
+{
+       char cmd[SIZ];
+       pid_t childpid;
+
+       snprintf(cmd, sizeof cmd, imagecmd, filename);
+       childpid = fork();
+       if (childpid < 0) {
+               unlink(filename);
+               return childpid;
+       }
+
+       if (childpid == 0) {
+               int retcode;
+               pid_t grandchildpid;
+
+               grandchildpid = fork();
+               if (grandchildpid < 0) {
+                       return grandchildpid;
+               }
+
+               if (grandchildpid == 0) {
+                       int nullfd;
+                       int outfd = -1;
+                       int errfd = -1;
+
+                       nullfd = open("/dev/null", O_WRONLY);
+                       if (nullfd > -1) {
+                               dup2(1, outfd);
+                               dup2(2, errfd);
+                               dup2(nullfd, 1);
+                               dup2(nullfd, 2);
+                       }
+                       retcode = system(cmd);
+                       if (nullfd > -1) {
+                               dup2(outfd, 1);
+                               dup2(errfd, 2);
+                               close(nullfd);
+                       }
+                       unlink(filename);
+                       exit(retcode);
+               }
+
+               if (grandchildpid > 0) {
+                       exit(0);
+               }
+       }
+
+       if (childpid > 0) {
+               int retcode;
+
+               waitpid(childpid, &retcode, 0);
+               return retcode;
+       }
+       
+       return -1;
+}
+
+
+/*
+ * View an image attached to a message
+ */
+void image_view(CtdlIPC *ipc, unsigned long msg)
+{
+       struct parts *ptr = last_message_parts;
+       char part[SIZ];
+       int found = 0;
+
+       /* Run through available parts */
+       for (ptr = last_message_parts; ptr; ptr = ptr->next) {
+               if ((!strcasecmp(ptr->disposition, "attachment")
+                  || !strcasecmp(ptr->disposition, "inline"))
+                  && !strncmp(ptr->mimetype, "image/", 6)) {
+                       found++;
+                       if (found == 1) {
+                               strcpy(part, ptr->number);
+                       }
+               }
+       }
+
+       while (found > 0) {
+               if (found > 1)
+                       strprompt("View which part (0 when done)", part, SIZ-1);
+               found = -found;
+               for (ptr = last_message_parts; ptr; ptr = ptr->next) {
+                       if ((!strcasecmp(ptr->disposition, "attachment")
+                          || !strcasecmp(ptr->disposition, "inline"))
+                          && !strncmp(ptr->mimetype, "image/", 6)
+                          && !strcasecmp(ptr->number, part)) {
+                               char tmp[PATH_MAX];
+                               char buf[SIZ];
+                               void *file = NULL; /* The downloaded file */
+                               int r;
+       
+                               /* view image */
+                               found = -found;
+                               r = CtdlIPCAttachmentDownload(ipc, msg, ptr->number, &file, progress, buf);
+                               if (r / 100 != 2) {
+                                       scr_printf("%s\n", buf);
+                               } else {
+                                       size_t len;
+       
+                                       len = (size_t)extract_long(buf, 0);
+                                       progress(ipc, len, len);
+                                       scr_flush();
+                                       snprintf(tmp, sizeof tmp, "%s.%s",
+                                               tmpnam(NULL),
+                                               ptr->filename);
+                                       save_buffer(file, len, tmp);
+                                       free(file);
+                                       do_image_view(tmp);
+                               }
+                               break;
+                       }
+               }
+               if (found == 1)
+                       break;
+       }
+}
+
 /*
  * Read the messages in the current room
  */
-void readmsgs(
-       int c,          /* 0=Read all  1=Read new  2=Read old 3=Read last q */
-       int rdir,       /* 1=Forward (-1)=Reverse */
+void readmsgs(CtdlIPC *ipc,
+       enum MessageList c,             /* see listing in citadel_ipc.h */
+       enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
        int q           /* Number of msgs to read (if c==3) */
 ) {
        int a, b, e, f, g, start;
@@ -1223,7 +1471,9 @@ void readmsgs(
        char pagin;
        char cmd[SIZ];
        char targ[ROOMNAMELEN];
-       char filename[SIZ];
+       char filename[PATH_MAX];
+       char save_to[PATH_MAX];
+       void *attachment = NULL;        /* Downloaded attachment */
        FILE *dest = NULL;      /* Alternate destination other than screen */
        int r;                          /* IPC response code */
 
@@ -1234,38 +1484,23 @@ void readmsgs(
 
        strcpy(prtfile, tmpnam(NULL));
 
-       num_msgs = 0;
-       strcpy(cmd, "MSGS ");
-       switch (c) {
-       case 0:
-               strcat(cmd, "ALL");
-               break;
-       case 1:
-               strcat(cmd, "NEW");
-               break;
-       case 2:
-               strcat(cmd, "OLD");
-               break;
-       case 3:
-               snprintf(&cmd[5], sizeof cmd - 5, "LAST|%d", q);
-               break;
+       if (msg_arr) {
+               free(msg_arr);
+               msg_arr = NULL;
        }
-       serv_puts(cmd);
-       serv_gets(cmd);
-       if (cmd[0] != '1') {
-               scr_printf("%s\n", &cmd[5]);
+       r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
+       if (r / 100 != 1) {
+               scr_printf("%s\n", cmd);
        } else {
-               while (serv_gets(cmd), strcmp(cmd, "000")) {
-                       check_msg_arr_size();
-                       msg_arr[num_msgs++] = atol(cmd);
-               }
+               for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
+                       ;
        }
 
-       if (num_msgs == 0) {
-               if (c == 3) return;
+       if (num_msgs == 0) {    /* TODO look at this later */
+               if (c == LastMessages) return;
                scr_printf("*** There are no ");
-               if (c == 1) scr_printf("new ");
-               if (c == 2) scr_printf("old ");
+               if (c == NewMessages) scr_printf("new ");
+               if (c == OldMessages) scr_printf("old ");
                scr_printf("messages in this room.\n");
                return;
        }
@@ -1297,8 +1532,12 @@ RAGAIN:          pagin = ((arcflag == 0)
                        screenwidth = 80;
                }
 
+               /* clear parts list */
+               free_parts(last_message_parts);
+               last_message_parts = NULL;
+
                /* now read the message... */
-               e = read_message(msg_arr[a], pagin, dest);
+               e = read_message(ipc, msg_arr[a], pagin, dest);
 
                /* ...and set the screenwidth back if we have to */
                if ((quotflag) || (arcflag)) {
@@ -1322,9 +1561,9 @@ RMSGREAD: scr_flush();
                        if (f == 0) {
                                freopen(prtfile, "r", stdin);
                                screen_reset();
-                               sttybbs(SB_RESTORE);
+                               stty_ctdl(SB_RESTORE);
                                ka_system(printcmd);
-                               sttybbs(SB_NO_INTR);
+                               stty_ctdl(SB_NO_INTR);
                                screen_set();
                                unlink(prtfile);
                                exit(0);
@@ -1338,7 +1577,7 @@ RMSGREAD: scr_flush();
                if (rc_alt_semantics && c == 1) {
                        char buf[SIZ];
 
-                       r = CtdlIPCSetMessageSeen(msg_arr[a], 1, buf);
+                       r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
                }
                if (e == 3)
                        return;
@@ -1354,9 +1593,11 @@ RMSGREAD:        scr_flush();
                        color(DIM_WHITE);
                        scr_printf(") ");
 
-                       keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top m<Y> next ");
+                       keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
                        if (rc_url_cmd[0] && num_urls)
                                keyopt("<U>RLview ");
+                       if (has_images > 0 && strlen(imagecmd) > 0)
+                               keyopt("<I>mages ");
                        keyopt("<?>help -> ");
 
                        do {
@@ -1385,11 +1626,15 @@ RMSGREAD:       scr_flush();
                                    if ((e == 'u')
                                        && (strlen(rc_url_cmd) == 0))
                                        e = 0;
+                               if ((e == 'i')
+                                       && (!strlen(imagecmd) || !has_images))
+                                       e = 0;
                        } while ((e != 'a') && (e != 'n') && (e != 's')
                                 && (e != 'd') && (e != 'm') && (e != 'p')
                                 && (e != 'q') && (e != 'b') && (e != 'h')
                                 && (e != 'r') && (e != 'f') && (e != '?')
-                                && (e != 'u') && (e != 'c') && (e != 'y'));
+                                && (e != 'u') && (e != 'c') && (e != 'y')
+                                && (e != 'i'));
                        switch (e) {
                        case 's':
                                scr_printf("Stop");
@@ -1433,11 +1678,13 @@ RMSGREAD:       scr_flush();
                        case 'y':
                                scr_printf("mY next");
                                break;
+                       case 'i':
+                               break;
                        case '?':
                                scr_printf("? <help>");
                                break;
                        }
-                       if (userflags & US_DISAPPEAR)
+                       if (userflags & US_DISAPPEAR || e == 'i')
                                scr_printf("\r%79s\r", "");
                        else
                                scr_printf("\n");
@@ -1470,6 +1717,8 @@ RMSGREAD: scr_flush();
                                    (" F  (save attachments to a file)\n");
                        if (strlen(rc_url_cmd) > 0)
                                scr_printf(" U  (list URL's for display)\n");
+                       if (strlen(imagecmd) > 0 && has_images > 0)
+                               scr_printf(" I  Image viewer\n");
                        scr_printf("\n");
                        goto RMSGREAD;
                case 'p':
@@ -1498,7 +1747,7 @@ RMSGREAD: scr_flush();
                        newprompt("Enter target room: ",
                                  targ, ROOMNAMELEN - 1);
                        if (strlen(targ) > 0) {
-                               r = CtdlIPCMoveMessage((e == 'c' ? 1 : 0),
+                               r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
                                                       msg_arr[a], targ, cmd);
                                scr_printf("%s\n", cmd);
                                if (r / 100 == 2)
@@ -1512,23 +1761,32 @@ RMSGREAD:       scr_flush();
                case 'f':
                        newprompt("Which section? ", filename,
                                  ((sizeof filename) - 1));
-                       snprintf(cmd, sizeof cmd,
-                                "OPNA %ld|%s", msg_arr[a], filename);
-                       serv_puts(cmd);
-                       serv_gets(cmd);
-                       if (cmd[0] == '2') {
-                               extract(filename, &cmd[4], 2);
-                               download_to_local_disk(filename,
-                                                      extract_int(&cmd[4],
-                                                                  0));
+                       r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
+                                       filename, &attachment, progress, cmd);
+                       if (r / 100 != 2) {
+                               scr_printf("%s\n", cmd);
                        } else {
-                               scr_printf("%s\n", &cmd[4]);
+                               extract_token(filename, cmd, 2, '|', sizeof filename);
+                               /*
+                                * Part 1 won't have a filename; use the
+                                * subject of the message instead. IO
+                                */
+                               if (!strlen(filename))
+                                       strcpy(filename, reply_subject);
+                               destination_directory(save_to, filename);
+                               save_buffer(attachment,
+                                               extract_unsigned_long(cmd, 0),
+                                               save_to);
+                       }
+                       if (attachment) {
+                               free(attachment);
+                               attachment = NULL;
                        }
                        goto RMSGREAD;
                case 'd':
                        scr_printf("*** Delete this message? ");
                        if (yesno() == 1) {
-                               r = CtdlIPCDeleteMessage(msg_arr[a], cmd);
+                               r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
                                scr_printf("%s\n", cmd);
                                if (r / 100 == 2)
                                        msg_arr[a] = 0L;
@@ -1537,15 +1795,18 @@ RMSGREAD:       scr_flush();
                        }
                        break;
                case 'h':
-                       read_message(msg_arr[a], READ_HEADER, NULL);
+                       read_message(ipc, msg_arr[a], READ_HEADER, NULL);
                        goto RMSGREAD;
                case 'r':
                        savedpos = num_msgs;
-                       entmsg(1, (DEFAULT_ENTRY == 46 ? 2 : 0));
+                       entmsg(ipc, 1, (rc_reply_extedit ? 2 : 0));
                        num_msgs = savedpos;
                        goto RMSGREAD;
                case 'u':
-                       list_urls();
+                       list_urls(ipc);
+                       goto RMSGREAD;
+               case 'i':
+                       image_view(ipc, msg_arr[a]);
                        goto RMSGREAD;
            case 'y':
           { /* hack hack hack */
@@ -1554,29 +1815,24 @@ RMSGREAD:       scr_flush();
             int lasta = a;
             for (finda = a; ((finda < num_msgs) && (finda >= 0)); finda += rdir)
               {
-                /* This is repetitively dumb, but that's what computers are for.
-                   We have to load up messages until we find one by us */
-                char buf[SIZ];
-                int founda = 0;
+               /* This is repetitively dumb, but that's what computers are for.
+                  We have to load up messages until we find one by us */
+               char buf[SIZ];
+               int founda = 0;
+               struct ctdlipcmessage *msg = NULL;
                 
-                       snprintf(buf, sizeof buf, "MSG0 %ld|1", msg_arr[finda]); /* read the header so we can get 'from=' */
-               serv_puts(buf);
-               serv_gets(buf);
-               while (serv_gets(buf), strcmp(buf, "000")) 
-                  {
-                       if ((!strncasecmp(buf, "from=", 5)) && (finda != a)) /* Skip current message. */
-                     { 
-                        if (strcasecmp(buf+5, fullname) == 0)
-                          {
-                            a = lasta; /* meesa current */
-                            founda = 1;
-                          }
-                         }
-                 }
-                   // we are now in synch with the server
-                if (founda)
-                  break; /* for */
-                lasta = finda; /* keep one behind or we skip on the reentrance to the for */
+               /* read the header so we can get 'from=' */
+               r = CtdlIPCGetSingleMessage(ipc, msg_arr[finda], 1, 0, &msg, buf);
+               if (!strncasecmp(msg->author, fullname, sizeof(fullname))) {
+                       a = lasta; /* meesa current */
+                       founda = 1;
+               }
+
+               free(msg);
+
+               if (founda)
+                       break; /* for */
+               lasta = finda; /* keep one behind or we skip on the reentrance to the for */
               } /* for */
           } /* case 'y' */
       } /* switch */
@@ -1589,16 +1845,16 @@ RMSGREAD:       scr_flush();
 /*
  * View and edit a system message
  */
-void edit_system_message(char *which_message)
+void edit_system_message(CtdlIPC *ipc, char *which_message)
 {
-       char desc[64];
-       char read_cmd[64];
-       char write_cmd[64];
+       char desc[SIZ];
+       char read_cmd[SIZ];
+       char write_cmd[SIZ];
 
        snprintf(desc, sizeof desc, "system message '%s'", which_message);
        snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
        snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
-       do_edit(desc, read_cmd, "NOOP", write_cmd);
+       do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
 }
 
 
@@ -1607,9 +1863,11 @@ void edit_system_message(char *which_message)
 /*
  * Verify the message base
  */
-void check_message_base(void)
+void check_message_base(CtdlIPC *ipc)
 {
        char buf[SIZ];
+       char *transcript = NULL;
+       int r;          /* IPC response code */
 
        scr_printf
            ("Please read the documentation before running this command.\n"
@@ -1617,14 +1875,56 @@ void check_message_base(void)
        if (yesno() == 0)
                return;
 
-       serv_puts("FSCK");
-       serv_gets(buf);
-       if (buf[0] != '1') {
-               scr_printf("%s\n", &buf[4]);
+       r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
+       if (r / 100 != 1) {
+               scr_printf("%s\n", buf);
                return;
        }
 
-       while (serv_gets(buf), strcmp(buf, "000")) {
-               scr_printf("%s\n", buf);
+       while (transcript && strlen(transcript)) {
+               lines_printed = 1;
+               extract_token(buf, transcript, 0, '\n', sizeof buf);
+               remove_token(transcript, 0, '\n');
+               pprintf("%s\n", buf);
        }
+       if (transcript) free(transcript);
+       return;
+}
+
+
+/*
+ * Loads the contents of a file into memory.  Caller must free the allocated
+ * memory.
+ */
+char *load_message_from_file(FILE *src)
+{
+       size_t i;
+       size_t got = 0;
+       char *dest = NULL;
+
+       fseek(src, 0, SEEK_END);
+       i = ftell(src);
+       rewind(src);
+
+       dest = (char *)calloc(1, i + 1);
+       if (!dest)
+               return NULL;
+
+       while (got < i) {
+               size_t g;
+
+               g = fread(dest + got, 1, i - got, src);
+               got += g;
+               if (g < i - got) {
+                       /* Interrupted system call, keep going */
+                       if (errno == EINTR)
+                               continue;
+                       /* At this point we have either EOF or error */
+                       i = got;
+                       break;
+               }
+               dest[i] = 0;
+       }
+
+       return dest;
 }