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#include <unistd.h>
#include "buffer.h"
#include "logmsg.h"
#include "open.h"
#include "stralloc.h"
#include "headerbody.h"
#include "hfield.h"
#include "maildir.h"
#include "prioq.h"
#define WHO "maildirwatch"
static void die_nomem()
{
logmsg(WHO, 111, FATAL, "out of memory");
}
stralloc recipient = {0};
stralloc sender = {0};
stralloc fromline = {0};
stralloc text = {0};
static void addtext(char *s, int n)
{
if (!stralloc_catb(&text, s, n)) die_nomem();
if (text.len > 158) text.len = 158;
}
static void dobody(stralloc *h)
{
addtext(h->s, h->len);
}
static void doheader(stralloc *h)
{
int i;
switch (hfield_known(h->s, h->len)) {
case H_SUBJECT:
i = hfield_skipname(h->s, h->len);
addtext(h->s + i, h->len - i);
break;
case H_DELIVEREDTO:
i = hfield_skipname(h->s, h->len);
if (i < h->len)
if (!stralloc_copyb(&recipient, h->s + i, h->len - i - 1)) die_nomem();
break;
case H_RETURNPATH:
i = hfield_skipname(h->s, h->len);
if (i < h->len)
if (!stralloc_copyb(&sender, h->s + i, h->len - i - 1)) die_nomem();
break;
case H_FROM:
if (!stralloc_copyb(&fromline, h->s, h->len - 1)) die_nomem();
break;
}
}
static void finishheader() {}
stralloc filenames = {0};
prioq pq = {0};
char inbuf[BUFFER_INSIZE];
buffer bi;
int main()
{
struct prioq_elt pe;
int fd;
int i;
if (maildir_chdir() == -1) logmsg(WHO, 111, FATAL, "Can't change to maildir");
for (;;) {
maildir_clean(&filenames);
if (maildir_scan(&pq, &filenames, 1, 0) == -1) logmsg(WHO, 111, FATAL, "Can't read maildir");
buffer_putsflush(buffer_1, "\033[;H\033[;J");
while (prioq_min(&pq, &pe)) {
prioq_delmin(&pq);
fd = open_read(filenames.s + pe.id);
if (fd == -1) continue;
buffer_init(&bi, read, fd, inbuf, sizeof(inbuf));
if (!stralloc_copys(&sender, "?")) die_nomem();
if (!stralloc_copys(&recipient, "?")) die_nomem();
if (!stralloc_copys(&fromline, "")) die_nomem();
if (!stralloc_copys(&text, "")) die_nomem();
if (headerbody(&bi, doheader, finishheader, dobody) == -1)
logmsg(WHO, 111, FATAL, "trouble reading new message");
for (i = 0; i < fromline.len; ++i)
if ((fromline.s[i] < 32) || (fromline.s[i] > 126)) fromline.s[i] = '/';
for (i = 0; i < sender.len; ++i)
if ((sender.s[i] < 32) || (sender.s[i] > 126)) sender.s[i] = '?';
for (i = 0; i < recipient.len; ++i)
if ((recipient.s[i] < 32) || (recipient.s[i] > 126)) recipient.s[i] = '?';
for (i = 0; i < text.len; ++i)
if ((text.s[i] < 32) || (text.s[i] > 126)) text.s[i] = '/';
buffer_puts(buffer_1, "FROM ");
buffer_put(buffer_1, sender.s, sender.len);
buffer_puts(buffer_1, " TO <");
buffer_put(buffer_1, recipient.s, recipient.len);
buffer_puts(buffer_1, ">\n");
if (fromline.len) {
buffer_puts(buffer_1, "\033[1m");
buffer_put(buffer_1, fromline.s, fromline.len);
buffer_puts(buffer_1, "\033[0m\n");
}
buffer_put(buffer_1, text.s, text.len);
buffer_puts(buffer_1, "\n\n");
close(fd);
}
buffer_flush(buffer_1);
sleep(30);
}
}
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