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Mutt089src.lha
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print.c
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C/C++ Source or Header
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1998-01-28
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9KB
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447 lines
/*
* Copyright (C) 1996-8 Michael R. Elkins <me@cs.hmc.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "mutt.h"
#include "mutt_curses.h"
#include "rfc2047.h"
#include "send.h"
#include "mailbox.h"
#include "parse.h"
#include "copy.h"
#ifdef _PGPPATH
#include "pgp.h"
#endif /* _PGPPATH */
#include <sys/wait.h>
#include <string.h>
static char *get_line (FILE *fl, char *buf, size_t *blen, int decode)
{
long old_pos;
int ch;
if (!buf)
{
*blen = HUGE_STRING;
buf = (char *) safe_calloc (1, *blen);
}
old_pos = ftell (fl);
if ((fgets (buf, *blen - 1, fl)) == NULL)
{
buf[0] = 0;
return (buf);
}
if (decode)
{
if (strncasecmp (buf, "Subject:", 8) == 0)
{
/* check to see if the next line is a continuation line */
ch = fgetc (fl);
ungetc (ch, fl);
if (ch == ' ' || ch == '\t')
{
fseek (fl, old_pos, 0);
buf = mutt_read_rfc822_line (fl, buf, blen);
if (buf && strlen (buf) == *blen - 1)
safe_realloc ((void **) &buf, (*blen += 16));
strcat (buf, "\n");
}
}
rfc2047_decode (buf, buf, *blen);
}
return (buf);
}
/* Ok, the only reason for not merging this with mutt_copy_header()
* below is to avoid creating a HEADER structure in message_handler().
*/
int mutt_copy_hdr (FILE *in, FILE *out, long off_start, long off_end, int flags)
{
int ignore = 0, from = 0;
char *buf = NULL;
size_t blen = 0;
if (ftell (in) != off_start)
fseek (in, off_start, 0);
/* If we are re-ordering, we have to scan the headers once
* to collect the headers we wish to re-order, then print them
* out, then print out the remaining headers.
*/
if (flags & CH_REORDER)
{
LIST *t = NULL;
char **headers = NULL;
int hdr_count = 0;
int x = 0;
int match = FALSE;
int error = FALSE;
for (t = HeaderOrderList; t; t = t->next)
{
dprint(1, (debugfile, "Reorder list: %s\n", t->data));
hdr_count++;
}
/* if there are no headers in the re-order list, skip this */
if (hdr_count)
{
headers = safe_calloc (hdr_count, sizeof (char *));
while (ftell (in) < off_end)
{
if ((buf = get_line (in, buf, &blen, (flags & CH_DECODE))) == NULL ||
buf[0] == 0)
break;
if (match && (buf[0] == ' ' || buf[0] == '\t'))
{
char *hdr = headers[x];
safe_realloc ((void **) &hdr,
strlen (headers[x]) + strlen (buf) + sizeof (char));
headers[x] = hdr;
strcat (headers[x], buf);
continue;
}
else
match = FALSE;
if (!from && strncmp ("From ", buf, 5) == 0)
{
if ((flags & CH_FROM) == 0)
continue;
from = 1;
}
else if (buf[0] == '\n' || (buf[0] == '\r' && buf[1] == '\n'))
break; /* end of header */
if (flags & CH_WEED)
{
if (buf[0] == ' ' || buf[0] == '\t')
{
if (ignore)
continue;
}
else if (mutt_matches_ignore (buf, Ignore) &&
!mutt_matches_ignore (buf, UnIgnore))
ignore = 1;
else
ignore = 0;
}
if (!ignore)
{
t = HeaderOrderList;
x = 0;
match = FALSE;
while (t && !match)
{
if (!strncasecmp (buf, t->data, strlen (t->data)))
{
if (!headers[x])
headers[x] = safe_strdup (buf);
else
{
char *hdr = headers[x];
safe_realloc ((void **) &hdr,
strlen (headers[x]) + strlen (buf) + sizeof(char));
headers[x] = hdr;
strcat (headers[x], buf);
}
dprint(2, (debugfile, "Reorder: %s matches %s\n", t->data,
headers[x]));
match = TRUE;
}
else
{
t = t->next;
x++;
}
}
}
}
for (x = 0; x < hdr_count; x++)
{
if (headers[x])
{
if (fputs (headers[x], out) == EOF)
error = TRUE;
safe_free ((void **) &headers[x]);
}
}
safe_free ((void **) &headers);
if (error)
{
if (buf)
safe_free ((void **) &buf);
return (-1);
}
from = 0;
ignore = 0;
fseek (in, off_start, 0);
} /* end hdr_count */
} /* end CH_REORDER */
dprint (1, (debugfile, "WEED is %s\n", (flags & CH_WEED) ? "Set" : "Not"));
while (ftell (in) < off_end)
{
if ((buf = get_line (in, buf, &blen, (flags & CH_DECODE))) == NULL ||
buf[0] == 0)
break;
if (!from && strncmp ("From ", buf, 5) == 0)
{
if ((flags & CH_FROM) == 0)
continue;
from = 1;
}
else if (buf[0] == '\n' || (buf[0] == '\r' && buf[1] == '\n'))
break; /* end of header */
if (flags & CH_WEED)
{
if (buf[0] == ' ' || buf[0] == '\t')
{
if (ignore)
continue;
}
else if (mutt_matches_ignore (buf, Ignore) &&
!mutt_matches_ignore (buf, UnIgnore))
ignore = 1;
else
ignore = 0;
}
if (!ignore)
{
if ((flags & (CH_UPDATE | CH_XMIT | CH_NOSTATUS)) &&
(strncasecmp ("Status:", buf, 7) == 0 ||
strncasecmp ("X-Status:", buf, 9) == 0))
continue;
if ((flags & (CH_UPDATE_LEN | CH_XMIT)) &&
(strncasecmp ("Content-Length:", buf, 15) == 0 ||
strncasecmp ("Lines:", buf, 6) == 0))
continue;
if ((flags & CH_MIME) &&
((strncasecmp ("content-", buf, 8) == 0 &&
(strncasecmp ("transfer-encoding:", buf + 8, 18) == 0 ||
strncasecmp ("type:", buf + 8, 5) == 0)) ||
strncasecmp ("mime-version:", buf, 13) == 0))
{
/* content-type could be multi-line, so set ignore mode */
ignore = 1;
continue;
}
/* Skip lines which were re-ordered */
if (flags & CH_REORDER)
{
LIST *t;
int match = FALSE;
t = HeaderOrderList;
match = FALSE;
while (t && !match)
{
if (!strncasecmp (buf, t->data, strlen (t->data)))
match = TRUE;
else
t = t->next;
}
if (match)
{
ignore = 1;
continue;
}
}
if (flags & CH_PREFIX)
{
if (fputs (Prefix, out) == EOF)
{
if (buf)
safe_free ((void **) &buf);
return (-1);
}
}
if (fputs (buf, out) == EOF)
{
if (buf)
safe_free ((void **) &buf);
return (-1);
}
}
}
if (buf)
safe_free ((void **) &buf);
return (0);
}
/* flags
* CH_WEED do header weeding
* CH_DECODE RFC2047 header decoding
* CH_PREFIX quote header with $indent_str
* CH_NOSTATUS ignore the Status: and X-Status:
* CH_REORDER output header in order specified by `hdr_order'
* CH_XMIT ignore Lines: and Content-Length:
* CH_MIME ignore MIME fields
* CH_UPDATE write new Status: and X-Status:
* CH_UPDATE_LEN write new Content-Length: and Lines:
* CH_NONEWLINE don't output a newline after the header
*/
int mutt_copy_header (FILE *in, HEADER *h, FILE *out, int flags)
{
if (mutt_copy_hdr (in, out, h->offset, h->content->offset, flags) == -1)
return (-1);
if (flags & CH_UPDATE)
{
if ((flags & CH_NOSTATUS) == 0)
{
if (h->old || h->read)
{
if (fputs ("Status: ", out) == EOF)
return (-1);
if (h->read)
{
if (fputs ("RO", out) == EOF)
return (-1);
}
else if (h->old)
{
if (fputc ('O', out) == EOF)
return (-1);
}
if (fputc ('\n', out) == EOF)
return (-1);
}
if (h->flagged || h->replied)
{
if (fputs ("X-Status: ", out) == EOF)
return (-1);
if (h->replied)
{
if (fputc ('A', out) == EOF)
return (-1);
}
if (h->flagged)
{
if (fputc ('F', out) == EOF)
return (-1);
}
if (fputc ('\n', out) == EOF)
return (-1);
}
}
}
if (flags & CH_UPDATE_LEN)
{
fprintf (out, "Content-Length: %ld\n", h->content->length);
if (h->lines != 0 || h->content->length == 0)
fprintf (out, "L