1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
2 *@ Mail to mail folders and displays.
4 * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
5 * Copyright (c) 2012 - 2014 Steffen (Daode) Nurpmeso <sdaoden@users.sf.net>.
8 * Copyright (c) 1980, 1993
9 * The Regents of the University of California. All rights reserved.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 #ifndef HAVE_AMALGAMATION
45 PIPE_NULL
, /* No pipe- mimetype handler */
46 PIPE_COMM
, /* Normal command */
47 PIPE_ASYNC
, /* Normal command, run asynchronous */
48 PIPE_TEXT
, /* @ special command to force treatment as text */
49 PIPE_MSG
/* Display message (returned as command string) */
58 static sigjmp_buf _send_pipejmp
;
61 static struct mimepart
*parsemsg(struct message
*mp
, enum parseflags pf
);
62 static enum okay
parsepart(struct message
*zmp
, struct mimepart
*ip
,
63 enum parseflags pf
, int level
);
64 static void parse822(struct message
*zmp
, struct mimepart
*ip
,
65 enum parseflags pf
, int level
);
67 static void parsepkcs7(struct message
*zmp
, struct mimepart
*ip
,
68 enum parseflags pf
, int level
);
70 static void _parsemultipart(struct message
*zmp
,
71 struct mimepart
*ip
, enum parseflags pf
, int level
);
72 static void __newpart(struct mimepart
*ip
, struct mimepart
**np
,
73 off_t offs
, int *part
);
74 static void __endpart(struct mimepart
**np
, off_t xoffs
, long lines
);
76 /* Going for user display, print Part: info string */
77 static void _print_part_info(struct str
*out
, struct mimepart
*mip
,
78 struct ignoretab
*doign
, int level
);
80 /* Query possible pipe command for MIME type */
81 static enum pipeflags
_pipecmd(char **result
, char const *content_type
);
84 static FILE * _pipefile(char const *pipecomm
, FILE **qbuf
, bool_t quote
,
87 /* Adjust output statistics */
88 SINLINE
void _addstats(off_t
*stats
, off_t lines
, off_t bytes
);
90 /* Call mime_write() as approbiate and adjust statistics */
91 SINLINE ssize_t
_out(char const *buf
, size_t len
, FILE *fp
,
92 enum conversion convert
, enum sendaction action
,
93 struct quoteflt
*qf
, off_t
*stats
,
97 static void _send_onpipe(int signo
);
100 static int sendpart(struct message
*zmp
, struct mimepart
*ip
,
101 FILE *obuf
, struct ignoretab
*doign
,
102 struct quoteflt
*qf
, enum sendaction action
,
103 off_t
*stats
, int level
);
105 /* Get a file for an attachment */
106 static FILE * newfile(struct mimepart
*ip
, int *ispipe
);
108 static void pipecpy(FILE *pipebuf
, FILE *outbuf
, FILE *origobuf
,
109 struct quoteflt
*qf
, off_t
*stats
);
111 /* Output a reasonable looking status field */
112 static void statusput(const struct message
*mp
, FILE *obuf
,
113 struct quoteflt
*qf
, off_t
*stats
);
114 static void xstatusput(const struct message
*mp
, FILE *obuf
,
115 struct quoteflt
*qf
, off_t
*stats
);
117 static void put_from_(FILE *fp
, struct mimepart
*ip
, off_t
*stats
);
119 static struct mimepart
*
120 parsemsg(struct message
*mp
, enum parseflags pf
)
125 ip
= csalloc(1, sizeof *ip
);
126 ip
->m_flag
= mp
->m_flag
;
127 ip
->m_have
= mp
->m_have
;
128 ip
->m_block
= mp
->m_block
;
129 ip
->m_offset
= mp
->m_offset
;
130 ip
->m_size
= mp
->m_size
;
131 ip
->m_xsize
= mp
->m_xsize
;
132 ip
->m_lines
= mp
->m_lines
;
133 ip
->m_xlines
= mp
->m_lines
;
134 if (parsepart(mp
, ip
, pf
, 0) != OKAY
)
141 parsepart(struct message
*zmp
, struct mimepart
*ip
, enum parseflags pf
,
148 ip
->m_ct_type
= hfield1("content-type", (struct message
*)ip
);
149 if (ip
->m_ct_type
!= NULL
) {
150 cp_b
= ip
->m_ct_type_plain
= savestr(ip
->m_ct_type
);
151 if ((cp
= strchr(cp_b
, ';')) != NULL
)
153 cp
= cp_b
+ strlen(cp_b
);
154 while (cp
> cp_b
&& blankchar(cp
[-1]))
157 } else if (ip
->m_parent
!= NULL
&&
158 ip
->m_parent
->m_mimecontent
== MIME_DIGEST
)
159 ip
->m_ct_type_plain
= UNCONST("message/rfc822");
161 ip
->m_ct_type_plain
= UNCONST("text/plain");
163 if (ip
->m_ct_type
!= NULL
)
164 ip
->m_charset
= mime_getparam("charset", ip
->m_ct_type
);
165 if (ip
->m_charset
== NULL
)
166 ip
->m_charset
= charset_get_7bit();
168 ip
->m_ct_transfer_enc
= hfield1("content-transfer-encoding",
169 (struct message
*)ip
);
170 ip
->m_mimeenc
= (ip
->m_ct_transfer_enc
!= NULL
)
171 ? mime_getenc(ip
->m_ct_transfer_enc
) : MIME_7B
;
173 if (((cp
= hfield1("content-disposition", (struct message
*)ip
)) == NULL
||
174 (ip
->m_filename
= mime_getparam("filename", cp
)) == NULL
) &&
175 ip
->m_ct_type
!= NULL
)
176 ip
->m_filename
= mime_getparam("name", ip
->m_ct_type
);
178 ip
->m_mimecontent
= mime_classify_content_of_part(ip
);
180 if (pf
& PARSE_PARTS
) {
181 if (level
> 9999) { /* TODO MAGIC */
182 fprintf(stderr
, _("MIME content too deeply nested\n"));
185 switch (ip
->m_mimecontent
) {
187 if (pf
& PARSE_DECRYPT
) {
189 parsepkcs7(zmp
, ip
, pf
, level
);
192 fprintf(stderr
, _("No SSL support compiled in.\n"));
200 case MIME_ALTERNATIVE
:
202 _parsemultipart(zmp
, ip
, pf
, level
);
205 parse822(zmp
, ip
, pf
, level
);
216 parse822(struct message
*zmp
, struct mimepart
*ip
, enum parseflags pf
,
227 if ((ibuf
= setinput(&mb
, (struct message
*)ip
, NEED_BODY
)) == NULL
)
232 while (cnt
&& ((c
= getc(ibuf
)) != EOF
)) {
243 np
= csalloc(1, sizeof *np
);
244 np
->m_flag
= MNOFROM
;
245 np
->m_have
= HAVE_HEADER
| HAVE_BODY
;
246 np
->m_block
= mailx_blockof(offs
);
247 np
->m_offset
= mailx_offsetof(offs
);
248 np
->m_size
= np
->m_xsize
= cnt
;
249 np
->m_lines
= np
->m_xlines
= lines
;
250 np
->m_partstring
= ip
->m_partstring
;
252 ip
->m_multipart
= np
;
254 if (ok_blook(rfc822_body_from_
)) {
255 substdate((struct message
*)np
);
256 np
->m_from
= fakefrom((struct message
*)np
);/* TODO strip MNOFROM flag? */
259 parsepart(zmp
, np
, pf
, level
+ 1);
266 parsepkcs7(struct message
*zmp
, struct mimepart
*ip
, enum parseflags pf
,
269 struct message m
, *xmp
;
274 memcpy(&m
, ip
, sizeof m
);
275 to
= hfield1("to", zmp
);
276 cc
= hfield1("cc", zmp
);
278 if ((xmp
= smime_decrypt(&m
, to
, cc
, 0)) != NULL
) {
279 np
= csalloc(1, sizeof *np
);
280 np
->m_flag
= xmp
->m_flag
;
281 np
->m_have
= xmp
->m_have
;
282 np
->m_block
= xmp
->m_block
;
283 np
->m_offset
= xmp
->m_offset
;
284 np
->m_size
= xmp
->m_size
;
285 np
->m_xsize
= xmp
->m_xsize
;
286 np
->m_lines
= xmp
->m_lines
;
287 np
->m_xlines
= xmp
->m_xlines
;
288 np
->m_partstring
= ip
->m_partstring
;
290 if (parsepart(zmp
, np
, pf
, level
+ 1) == OKAY
) {
292 ip
->m_multipart
= np
;
300 _parsemultipart(struct message
*zmp
, struct mimepart
*ip
, enum parseflags pf
,
303 /* TODO Instead of the recursive multiple run parse we have today,
304 * TODO the send/MIME layer rewrite must create a "tree" of parts with
305 * TODO a single-pass parse, then address each part directly as
306 * TODO necessary; since boundaries start with -- and the content
307 * TODO rather forms a stack this is pretty cheap indeed! */
308 struct mimepart
*np
= NULL
;
309 char *boundary
, *line
= NULL
;
310 size_t linesize
= 0, linelen
, cnt
, boundlen
;
317 if ((boundary
= mime_get_boundary(ip
->m_ct_type
, &linelen
)) == NULL
)
321 if ((ibuf
= setinput(&mb
, (struct message
*)ip
, NEED_BODY
)) == NULL
)
325 while (fgetline(&line
, &linesize
, &cnt
, &linelen
, ibuf
, 0))
330 __newpart(ip
, &np
, offs
, NULL
);
331 while (fgetline(&line
, &linesize
, &cnt
, &linelen
, ibuf
, 0)) {
332 /* XXX linelen includes LF */
333 if (!((lines
> 0 || part
== 0) && linelen
> boundlen
&&
334 !strncmp(line
, boundary
, boundlen
))) {
339 /* Subpart boundary? */
340 if (line
[boundlen
] == '\n') {
343 __endpart(&np
, offs
- boundlen
- 2, lines
);
344 __newpart(ip
, &np
, offs
- boundlen
- 2, NULL
);
346 __endpart(&np
, offs
, 2);
347 __newpart(ip
, &np
, offs
, &part
);
352 /* Final boundary? Be aware of cases where there is no separating
353 * newline in between boundaries, as has been seen in a message with
354 * "Content-Type: multipart/appledouble;" */
355 if (linelen
< boundlen
+ 2)
357 linelen
-= boundlen
+ 2;
358 if (line
[boundlen
] != '-' || line
[boundlen
+ 1] != '-' ||
359 (linelen
> 0 && line
[boundlen
+ 2] != '\n'))
363 __endpart(&np
, offs
- boundlen
- 4, lines
);
364 __newpart(ip
, &np
, offs
- boundlen
- 4, NULL
);
366 __endpart(&np
, offs
+ cnt
, 2);
371 __endpart(&np
, offs
, lines
);
374 for (np
= ip
->m_multipart
; np
!= NULL
; np
= np
->m_nextpart
)
375 if (np
->m_mimecontent
!= MIME_DISCARD
)
376 parsepart(zmp
, np
, pf
, level
+ 1);
383 __newpart(struct mimepart
*ip
, struct mimepart
**np
, off_t offs
, int *part
)
389 *np
= csalloc(1, sizeof **np
);
390 (*np
)->m_flag
= MNOFROM
;
391 (*np
)->m_have
= HAVE_HEADER
| HAVE_BODY
;
392 (*np
)->m_block
= mailx_blockof(offs
);
393 (*np
)->m_offset
= mailx_offsetof(offs
);
397 sz
= (ip
->m_partstring
!= NULL
) ? strlen(ip
->m_partstring
) : 0;
399 (*np
)->m_partstring
= salloc(sz
);
400 if (ip
->m_partstring
)
401 snprintf((*np
)->m_partstring
, sz
, "%s.%u", ip
->m_partstring
, *part
);
403 snprintf((*np
)->m_partstring
, sz
, "%u", *part
);
405 (*np
)->m_mimecontent
= MIME_DISCARD
;
406 (*np
)->m_parent
= ip
;
408 if (ip
->m_multipart
) {
409 for (pp
= ip
->m_multipart
; pp
->m_nextpart
!= NULL
; pp
= pp
->m_nextpart
)
411 pp
->m_nextpart
= *np
;
413 ip
->m_multipart
= *np
;
418 __endpart(struct mimepart
**np
, off_t xoffs
, long lines
)
423 offs
= mailx_positionof((*np
)->m_block
, (*np
)->m_offset
);
424 (*np
)->m_size
= (*np
)->m_xsize
= xoffs
- offs
;
425 (*np
)->m_lines
= (*np
)->m_xlines
= lines
;
431 _print_part_info(struct str
*out
, struct mimepart
*mip
,
432 struct ignoretab
*doign
, int level
)
434 struct str ct
= {NULL
, 0}, cd
= {NULL
, 0};
436 struct str
const *cpre
, *csuf
;
440 if (is_ign("content-type", 12, doign
)) {
441 out
->s
= mip
->m_ct_type_plain
;
442 out
->l
= strlen(out
->s
);
443 ct
.s
= ac_alloc(out
->l
+ 2 +1);
447 if (is_prefix("application/", out
->s
)) {
448 memcpy(ct
.s
+ 2, "appl../", 7);
452 out
->l
= MIN(out
->l
, 17);
454 out
->l
= MIN(out
->l
, 24);
455 memcpy(ct
.s
+ ct
.l
, out
->s
, out
->l
);
461 if (is_ign("content-disposition", 19, doign
) && mip
->m_filename
!= NULL
) {
464 ti
.l
= strlen(ti
.s
= mip
->m_filename
);
465 mime_fromhdr(&ti
, &to
, TD_ISPR
| TD_ICONV
| TD_DELCTRL
);
467 cd
.s
= ac_alloc(2 + 32 +1); /* FIXME was 25.. UNI: USE VISUAL WIDTH!!! */
470 cd
.l
= 2 + field_put_bidi_clip(cd
.s
+ 2, 32 +1, to
.s
, to
.l
);
475 /* Take care of "99.99", i.e., 5 */
476 if ((ps
= mip
->m_partstring
) == NULL
|| ps
[0] == '\0')
480 cpre
= colour_get(COLOURSPEC_PARTINFO
);
481 csuf
= colour_get(COLOURSPEC_RESET
);
486 /* Assume maximum possible sizes for 64 bit integers here to avoid any
487 * buffer overflows just in case we have a bug somewhere and / or the
488 * snprintf() is our internal version that doesn't really provide hard
489 * buffer cuts TODO ensure upper bound on numbers, use 9999999 else */
490 #define __msg "%s%s[-- #%s : %lu/%lu%s%s --]%s\n"
491 out
->l
= sizeof(__msg
) +
493 (cpre
!= NULL
? cpre
->l
+ csuf
->l
: 0) +
495 strlen(ps
) + 2*21 + ct
.l
+ cd
.l
+1;
496 out
->s
= salloc(out
->l
);
497 out
->l
= snprintf(out
->s
, out
->l
, __msg
,
498 (level
|| (ps
[0] != '1' && ps
[1] == '\0') ? "\n" : ""),
499 (cpre
!= NULL
? cpre
->s
: ""),
500 ps
, (ul_it
)mip
->m_lines
, (ul_it
)mip
->m_size
,
501 (ct
.s
!= NULL
? ct
.s
: ""),
502 (cd
.s
!= NULL
? cd
.s
: ""),
503 (csuf
!= NULL
? csuf
->s
: ""));
504 out
->s
[out
->l
] = '\0';
514 static enum pipeflags
515 _pipecmd(char **result
, char const *content_type
)
524 if (content_type
== NULL
)
527 /* First check wether there is a special pipe-MIMETYPE handler */
528 s
= ac_alloc(strlen(content_type
) + 5 +1);
529 memcpy(s
, "pipe-", 5);
533 *cp
++ = lowerconv(*cq
);
534 while (*cq
++ != '\0');
541 /* User specified a command, inspect for special cases */
543 /* Normal command line */
546 } else if (*++cp
== '\0') {
547 /* Treat as plain text */
549 } else if (!msglist_is_single
) {
550 /* Viewing multiple messages in one go, don't block system */
552 *result
= UNCONST(_("[Directly address message only to display this]\n"));
554 /* Viewing a single message only */
555 #if 0 /* TODO send/MIME layer rewrite: when we have a single-pass parser
556 * TODO then the parsing phase and the send phase will be separated;
557 * TODO that allows us to ask a user *before* we start the send, i.e.,
558 * TODO *before* a pager pipe is setup (which is the problem with
559 * TODO the '#if 0' code here) */
560 size_t l
= strlen(content_type
);
561 char const *x
= _("Should i display a part `%s' (y/n)? ");
562 s
= ac_alloc(l
+= strlen(x
) +1);
563 snprintf(s
, l
- 1, x
, content_type
);
564 l
= getapproval(s
), TRU1
;
565 puts(""); /* .. we've hijacked a pipe 8-] ... */
568 x
= _("[User skipped diplay]\n");
570 *result
= UNCONST(x
);
574 /* Asynchronous command, normal command line */
575 ret
= PIPE_ASYNC
, *result
= ++cp
;
577 ret
= PIPE_COMM
, *result
= cp
;
585 _pipefile(char const *pipecomm
, FILE **qbuf
, bool_t quote
, bool_t async
)
594 if ((*qbuf
= Ftmp(NULL
, "sendp", OF_RDWR
| OF_UNLINK
| OF_REGISTER
,
596 perror(_("tmpfile"));
602 if ((sh
= ok_vlook(SHELL
)) == NULL
)
604 if ((rbuf
= Popen(pipecomm
, "W", sh
, NULL
, (async
? -1 : fileno(*qbuf
)))
617 _addstats(off_t
*stats
, off_t lines
, off_t bytes
)
629 _out(char const *buf
, size_t len
, FILE *fp
, enum conversion convert
, enum
630 sendaction action
, struct quoteflt
*qf
, off_t
*stats
, struct str
*rest
)
638 Well
... it turns out to
not work like that since of course a valid
639 RFC
4155 compliant parser
, like S
-nail
, takes care
for From_ lines only
640 after an empty line has been seen
, which cannot be detected that easily
642 ifdef HAVE_DEBUG
/* TODO assert legacy */
643 /* TODO if at all, this CAN only happen for SEND_DECRYPT, since all
644 * TODO other input situations handle RFC 4155 OR, if newly generated,
645 * TODO enforce quoted-printable if there is From_, as "required" by
646 * TODO RFC 5751. The SEND_DECRYPT case is not yet overhauled;
647 * TODO if it may happen in this path, we should just treat decryption
648 * TODO as we do for the other input paths; i.e., handle it in SSL!! */
649 if (action
== SEND_MBOX
|| action
== SEND_DECRYPT
)
650 assert(!is_head(buf
, len
));
652 if ((/*action == SEND_MBOX ||*/ action
== SEND_DECRYPT
) &&
659 flags
= ((int)action
& _TD_EOF
);
661 n
= mime_write(buf
, len
, fp
,
662 action
== SEND_MBOX
? CONV_NONE
: convert
,
663 flags
| ((action
== SEND_TODISP
|| action
== SEND_TODISP_ALL
||
664 action
== SEND_QUOTE
|| action
== SEND_QUOTE_ALL
)
666 : (action
== SEND_TOSRCH
|| action
== SEND_TOPIPE
)
667 ? TD_ICONV
: (action
== SEND_TOFLTR
)
668 ? TD_DELCTRL
: (action
== SEND_SHOW
? TD_ISPR
: TD_NONE
)),
673 sz
= (ssize_t
)((size_t)sz
+ n
);
675 if (stats
!= NULL
&& stats
[0] != -1)
676 for (cp
= buf
; PTRCMP(cp
, <, buf
+ sz
); ++cp
)
679 _addstats(stats
, n
, sz
);
686 _send_onpipe(int signo
)
688 NYD_X
; /* Signal handler */
690 siglongjmp(_send_pipejmp
, 1);
694 sendpart(struct message
*zmp
, struct mimepart
*ip
, FILE * volatile obuf
,
695 struct ignoretab
*doign
, struct quoteflt
*qf
,
696 enum sendaction
volatile action
, off_t
*volatile stats
, int level
)
698 int volatile ispipe
, rv
= 0;
700 char *line
= NULL
, *cp
, *cp2
, *start
, *pipecomm
= NULL
;
701 size_t linesize
= 0, linelen
, cnt
;
702 int dostat
, infld
= 0, ignoring
= 1, isenc
, c
;
703 struct mimepart
*volatile np
;
704 FILE * volatile ibuf
= NULL
, * volatile pbuf
= obuf
, * volatile qbuf
= obuf
,
706 enum conversion
volatile convert
;
707 sighandler_type
volatile oldpipe
= SIG_DFL
;
711 if (ip
->m_mimecontent
== MIME_PKCS7
&& ip
->m_multipart
&&
712 action
!= SEND_MBOX
&& action
!= SEND_RFC822
&& action
!= SEND_SHOW
)
718 if (!is_ign("status", 6, doign
))
720 if (!is_ign("x-status", 8, doign
))
725 if ((ibuf
= setinput(&mb
, (struct message
*)ip
, NEED_BODY
)) == NULL
) {
731 if (ip
->m_mimecontent
== MIME_DISCARD
)
734 if (!(ip
->m_flag
& MNOFROM
))
735 while (cnt
&& (c
= getc(ibuf
)) != EOF
) {
741 convert
= (action
== SEND_TODISP
|| action
== SEND_TODISP_ALL
||
742 action
== SEND_QUOTE
|| action
== SEND_QUOTE_ALL
||
743 action
== SEND_TOSRCH
|| action
== SEND_TOFLTR
)
744 ? CONV_FROMHDR
: CONV_NONE
;
746 /* Work the headers */
747 quoteflt_reset(qf
, obuf
);
748 while (fgetline(&line
, &linesize
, &cnt
, &linelen
, ibuf
, 0)) {
750 if (line
[0] == '\n') {
751 /* If line is blank, we've reached end of headers, so force out
752 * status: field and note that we are no longer in header fields */
754 statusput(zmp
, obuf
, qf
, stats
);
756 xstatusput(zmp
, obuf
, qf
, stats
);
757 if (doign
!= allignore
)
758 _out("\n", 1, obuf
, CONV_NONE
, SEND_MBOX
, qf
, stats
, NULL
);
763 if (infld
&& blankchar(line
[0])) {
764 /* If this line is a continuation (SP / HT) of a previous header
765 * field, determine if the start of the line is a MIME encoded word */
767 for (cp
= line
; blankchar(*cp
); ++cp
);
768 if (cp
> line
&& linelen
- PTR2SIZE(cp
- line
) > 8 &&
769 cp
[0] == '=' && cp
[1] == '?')
773 /* Pick up the header field if we have one */
774 for (cp
= line
; (c
= *cp
& 0377) && c
!= ':' && !spacechar(c
); ++cp
)
777 while (spacechar(*cp
))
779 if (cp
[0] != ':' && level
== 0 && lineno
== 1) {
780 /* Not a header line, force out status: This happens in uucp style
781 * mail where there are no headers at all */
783 statusput(zmp
, obuf
, qf
, stats
);
785 xstatusput(zmp
, obuf
, qf
, stats
);
786 if (doign
!= allignore
)
787 _out("\n", 1, obuf
, CONV_NONE
,SEND_MBOX
, qf
, stats
, NULL
);
791 /* If it is an ignored field and we care about such things, skip it.
792 * Misuse dostat also for another bit xxx use a bitenum + for more */
793 if (ok_blook(keep_content_length
))
796 *cp2
= 0; /* temporarily null terminate */
797 if ((doign
&& is_ign(line
, PTR2SIZE(cp2
- line
), doign
)) ||
798 (action
== SEND_MBOX
&& !(dostat
& (1 << 2)) &&
799 (!asccasecmp(line
, "content-length") ||
800 !asccasecmp(line
, "lines"))))
802 else if (!asccasecmp(line
, "status")) {
803 /* If field is "status," go compute and print real Status: field */
805 statusput(zmp
, obuf
, qf
, stats
);
809 } else if (!asccasecmp(line
, "x-status")) {
810 /* If field is "status," go compute and print real Status: field */
812 xstatusput(zmp
, obuf
, qf
, stats
);
819 pipecomm
= savestrbuf(line
, PTR2SIZE(cp2
- line
));
827 /* Determine if the end of the line is a MIME encoded word */
828 /* TODO geeeh! all this lengthy stuff that follows is about is dealing
829 * TODO with header follow lines, and it should be up to the backend
830 * TODO what happens and what not, i.e., it doesn't matter wether it's
831 * TODO a MIME-encoded word or not, as long as a single separating space
832 * TODO remains in between lines (the MIME stuff will correctly remove
833 * TODO whitespace in between multiple adjacent encoded words) */
835 if (cnt
&& (c
= getc(ibuf
)) != EOF
) {
837 cp
= line
+ linelen
- 1;
838 if (linelen
> 0 && *cp
== '\n')
840 while (cp
>= line
&& whitechar(*cp
))
842 if (PTR2SIZE(cp
- line
> 8) && cp
[0] == '=' && cp
[-1] == '?')
849 size_t len
= linelen
;
851 if (action
== SEND_TODISP
|| action
== SEND_TODISP_ALL
||
852 action
== SEND_QUOTE
|| action
== SEND_QUOTE_ALL
||
853 action
== SEND_TOSRCH
|| action
== SEND_TOFLTR
) {
854 /* Strip blank characters if two MIME-encoded words follow on
855 * continuing lines */
857 while (len
> 0 && blankchar(*start
)) {
862 if (len
> 0 && start
[len
- 1] == '\n')
864 while (len
> 0 && blankchar(start
[len
- 1]))
869 bool_t colour_stripped
= FAL0
;
870 if (pipecomm
!= NULL
) {
871 colour_put_header(obuf
, pipecomm
);
872 if (len
> 0 && start
[len
- 1] == '\n') {
873 colour_stripped
= TRU1
;
878 _out(start
, len
, obuf
, convert
, action
, qf
, stats
, NULL
);
880 if (pipecomm
!= NULL
) {
881 colour_reset(obuf
); /* XXX reset after \n!! */
899 switch (ip
->m_mimecontent
) {
906 case SEND_TODISP_ALL
:
909 if (ok_blook(rfc822_body_from_
)) {
910 if (qf
->qf_pfix_len
> 0) {
911 size_t i
= fwrite(qf
->qf_pfix
, sizeof *qf
->qf_pfix
,
912 qf
->qf_pfix_len
, obuf
);
913 if (i
== qf
->qf_pfix_len
)
914 _addstats(stats
, 0, i
);
916 put_from_(obuf
, ip
->m_multipart
, stats
);
924 if (ok_blook(rfc822_body_from_
))
925 put_from_(obuf
, ip
->m_multipart
, stats
);
934 if (action
== SEND_TOFLTR
)
938 case MIME_TEXT_PLAIN
:
941 case SEND_TODISP_ALL
:
945 switch (_pipecmd(&pipecomm
, ip
->m_ct_type_plain
)) {
947 _out(pipecomm
, strlen(pipecomm
), obuf
, CONV_NONE
, SEND_MBOX
, qf
,
963 if (action
!= SEND_DECRYPT
)
967 if (action
!= SEND_MBOX
&& action
!= SEND_RFC822
&&
968 action
!= SEND_SHOW
&& ip
->m_multipart
!= NULL
)
974 case SEND_TODISP_ALL
:
978 switch (_pipecmd(&pipecomm
, ip
->m_ct_type_plain
)) {
980 _out(pipecomm
, strlen(pipecomm
), obuf
, CONV_NONE
, SEND_MBOX
, qf
,
991 goto jcopyout
; /* break; break; */
993 if (pipecomm
!= NULL
)
995 if (level
== 0 && cnt
) {
996 char const *x
= _("[Binary content]\n");
997 _out(x
, strlen(x
), obuf
, CONV_NONE
, SEND_MBOX
, qf
, stats
, NULL
);
1012 case MIME_ALTERNATIVE
:
1013 if ((action
== SEND_TODISP
|| action
== SEND_QUOTE
) &&
1014 !ok_blook(print_alternatives
)) {
1015 bool_t doact
= FAL0
;
1017 for (np
= ip
->m_multipart
; np
!= NULL
; np
= np
->m_nextpart
)
1018 if (np
->m_mimecontent
== MIME_TEXT_PLAIN
)
1021 for (np
= ip
->m_multipart
; np
!= NULL
; np
= np
->m_nextpart
) {
1022 if (np
->m_ct_type_plain
!= NULL
&& action
!= SEND_QUOTE
) {
1023 _print_part_info(&rest
, np
, doign
, level
);
1024 _out(rest
.s
, rest
.l
, obuf
, CONV_NONE
, SEND_MBOX
, qf
, stats
,
1027 if (doact
&& np
->m_mimecontent
== MIME_TEXT_PLAIN
) {
1029 rv
= sendpart(zmp
, np
, obuf
, doign
, qf
, action
, stats
,
1031 quoteflt_reset(qf
, origobuf
);
1044 case SEND_TODISP_ALL
:
1046 case SEND_QUOTE_ALL
:
1053 if ((action
== SEND_TODISP
|| action
== SEND_TODISP_ALL
) &&
1054 ip
->m_multipart
!= NULL
&&
1055 ip
->m_multipart
->m_mimecontent
== MIME_DISCARD
&&
1056 ip
->m_multipart
->m_nextpart
== NULL
) {
1057 char const *x
= _("[Missing multipart boundary - use \"show\" "
1058 "to display the raw message]\n");
1059 _out(x
, strlen(x
), obuf
, CONV_NONE
, SEND_MBOX
, qf
, stats
, NULL
);
1062 for (np
= ip
->m_multipart
; np
!= NULL
; np
= np
->m_nextpart
) {
1063 if (np
->m_mimecontent
== MIME_DISCARD
&& action
!= SEND_DECRYPT
)
1068 if (np
->m_partstring
&& !strcmp(np
->m_partstring
, "1"))
1071 if ((obuf
= newfile(np
, UNVOLATILE(&ispipe
))) == NULL
)
1075 if (sigsetjmp(_send_pipejmp
, 1)) {
1079 oldpipe
= safe_signal(SIGPIPE
, &_send_onpipe
);
1082 case SEND_TODISP_ALL
:
1083 case SEND_QUOTE_ALL
:
1084 if (ip
->m_mimecontent
!= MIME_MULTI
&&
1085 ip
->m_mimecontent
!= MIME_ALTERNATIVE
&&
1086 ip
->m_mimecontent
!= MIME_DIGEST
)
1088 _print_part_info(&rest
, np
, doign
, level
);
1089 _out(rest
.s
, rest
.l
, obuf
, CONV_NONE
, SEND_MBOX
, qf
, stats
,
1106 if (sendpart(zmp
, np
, obuf
, doign
, qf
, action
, stats
, level
+1) < 0)
1108 quoteflt_reset(qf
, origobuf
);
1109 if (action
== SEND_QUOTE
)
1111 if (action
== SEND_TOFILE
&& obuf
!= origobuf
) {
1116 safe_signal(SIGPIPE
, SIG_IGN
);
1118 safe_signal(SIGPIPE
, oldpipe
);
1130 /* Copy out message body */
1132 if (doign
== allignore
&& level
== 0) /* skip final blank line */
1134 switch (ip
->m_mimeenc
) {
1141 convert
= CONV_NONE
;
1144 convert
= CONV_FROMQP
;
1147 switch (ip
->m_mimecontent
) {
1149 case MIME_TEXT_PLAIN
:
1150 case MIME_TEXT_HTML
:
1151 convert
= CONV_FROMB64_T
;
1154 convert
= CONV_FROMB64
;
1158 convert
= CONV_NONE
;
1161 if (action
== SEND_DECRYPT
|| action
== SEND_MBOX
||
1162 action
== SEND_RFC822
|| action
== SEND_SHOW
)
1163 convert
= CONV_NONE
;
1165 if ((action
== SEND_TODISP
|| action
== SEND_TODISP_ALL
||
1166 action
== SEND_QUOTE
|| action
== SEND_QUOTE_ALL
||
1167 action
== SEND_TOSRCH
) &&
1168 (ip
->m_mimecontent
== MIME_TEXT_PLAIN
||
1169 ip
->m_mimecontent
== MIME_TEXT_HTML
||
1170 ip
->m_mimecontent
== MIME_TEXT
)) {
1171 char const *tcs
= charset_get_lc();
1173 if (iconvd
!= (iconv_t
)-1)
1174 n_iconv_close(iconvd
);
1175 /* TODO Since Base64 has an odd 4:3 relation in between input
1176 * TODO and output an input line may end with a partial
1177 * TODO multibyte character; this is no problem at all unless
1178 * TODO we send to the display or whatever, i.e., ensure
1179 * TODO makeprint() or something; to avoid this trap, *force*
1180 * TODO iconv(), in which case this layer will handle leftovers
1182 if (convert
== CONV_FROMB64_T
|| (asccasecmp(tcs
, ip
->m_charset
) &&
1183 asccasecmp(charset_get_7bit(), ip
->m_charset
))) {
1184 iconvd
= n_iconv_open(tcs
, ip
->m_charset
);
1185 /* XXX Don't bail out if we cannot iconv(3) here;
1186 * XXX alternatively we could avoid trying to open
1187 * XXX if ip->m_charset is "unknown-8bit", which was
1188 * XXX the one that has bitten me?? */
1190 * TODO errors should DEFINETELY not be scrolled away!
1191 * TODO what about an error buffer (think old shsp(1)),
1192 * TODO re-dump errors since last snapshot when the
1193 * TODO command loop enters again? i.e., at least print
1194 * TODO "There were errors ?" before the next prompt,
1195 * TODO so that the user can look at the error buffer?
1197 if (iconvd
== (iconv_t
)-1 && errno
== EINVAL
) {
1198 fprintf(stderr
, _("Cannot convert from %s to %s\n"),
1199 ip
->m_charset
, tcs
);
1200 /*rv = 1; goto jleave;*/
1206 if (pipecomm
!= NULL
&& (action
== SEND_TODISP
||
1207 action
== SEND_TODISP_ALL
|| action
== SEND_QUOTE
||
1208 action
== SEND_QUOTE_ALL
)) {
1210 pbuf
= _pipefile(pipecomm
, UNVOLATILE(&qbuf
),
1211 (action
== SEND_QUOTE
|| action
== SEND_QUOTE_ALL
), !ispipe
);
1212 action
= SEND_TOPIPE
;
1214 oldpipe
= safe_signal(SIGPIPE
, &_send_onpipe
);
1215 if (sigsetjmp(_send_pipejmp
, 1))
1223 ui32_t save_qf_pfix_len
= qf
->qf_pfix_len
;
1224 off_t
*save_stats
= stats
;
1226 if (pbuf
!= origobuf
) {
1227 qf
->qf_pfix_len
= 0; /* XXX legacy (remove filter instead) */
1234 quoteflt_reset(qf
, pbuf
);
1235 while (!eof
&& fgetline(&line
, &linesize
, &cnt
, &linelen
, ibuf
, 0)) {
1237 if (_out(line
, linelen
, pbuf
, convert
, action
, qf
, stats
, &rest
) < 0 ||
1239 rv
= -1; /* XXX Should bail away?! */
1243 if (!eof
&& rest
.l
!= 0) {
1253 if (pbuf
!= origobuf
) {
1254 qf
->qf_pfix_len
= save_qf_pfix_len
;
1262 safe_signal(SIGPIPE
, SIG_IGN
);
1263 Pclose(pbuf
, ispipe
);
1264 safe_signal(SIGPIPE
, oldpipe
);
1266 pipecpy(qbuf
, obuf
, origobuf
, qf
, stats
);
1269 if (iconvd
!= (iconv_t
)-1)
1270 n_iconv_close(iconvd
);
1278 newfile(struct mimepart
*ip
, int *ispipe
)
1288 if (f
!= NULL
&& f
!= (char*)-1) {
1291 mime_fromhdr(&in
, &out
, TD_ISPR
);
1292 memcpy(f
, out
.s
, out
.l
);
1293 *(f
+ out
.l
) = '\0';
1297 if (options
& OPT_INTERACTIVE
) {
1300 printf(_("Enter filename for part %s (%s)"),
1301 (ip
->m_partstring
!= NULL
) ? ip
->m_partstring
: "?",
1302 ip
->m_ct_type_plain
);
1303 f2
= readstr_input(": ", (f
!= (char*)-1) ? f
: NULL
);
1304 if (f2
== NULL
|| *f2
== '\0') {
1305 fprintf(stderr
, _("... skipping this\n"));
1308 } else if (*f2
== '|')
1309 /* Pipes are expanded by the shell */
1311 else if ((f3
= file_expand(f2
)) == NULL
)
1312 /* (Error message written by file_expand()) */
1317 if (f
== NULL
|| f
== (char*)-1) {
1324 cp
= ok_vlook(SHELL
);
1327 fp
= Popen(f
+ 1, "w", cp
, NULL
, 1);
1328 if (!(*ispipe
= (fp
!= NULL
)))
1331 if ((fp
= Fopen(f
, "w")) == NULL
)
1332 fprintf(stderr
, _("Cannot open `%s'\n"), f
);
1340 pipecpy(FILE *pipebuf
, FILE *outbuf
, FILE *origobuf
, struct quoteflt
*qf
,
1343 char *line
= NULL
; /* TODO line pool */
1344 size_t linesize
= 0, linelen
, cnt
;
1350 cnt
= fsize(pipebuf
);
1353 quoteflt_reset(qf
, outbuf
);
1354 while (fgetline(&line
, &linesize
, &cnt
, &linelen
, pipebuf
, 0) != NULL
) {
1355 if ((sz
= quoteflt_push(qf
, line
, linelen
)) < 0)
1359 if ((sz
= quoteflt_flush(qf
)) > 0)
1364 if (all_sz
> 0 && outbuf
== origobuf
)
1365 _addstats(stats
, 1, all_sz
);
1371 statusput(const struct message
*mp
, FILE *obuf
, struct quoteflt
*qf
,
1374 char statout
[3], *cp
= statout
;
1377 if (mp
->m_flag
& MREAD
)
1379 if (!(mp
->m_flag
& MNEW
))
1383 int i
= fprintf(obuf
, "%.*sStatus: %s\n", (int)qf
->qf_pfix_len
,
1384 (qf
->qf_pfix_len
> 0 ? qf
->qf_pfix
: 0), statout
);
1386 _addstats(stats
, 1, i
);
1392 xstatusput(const struct message
*mp
, FILE *obuf
, struct quoteflt
*qf
,
1396 char *xp
= xstatout
;
1399 if (mp
->m_flag
& MFLAGGED
)
1401 if (mp
->m_flag
& MANSWERED
)
1403 if (mp
->m_flag
& MDRAFTED
)
1407 int i
= fprintf(obuf
, "%.*sX-Status: %s\n", (int)qf
->qf_pfix_len
,
1408 (qf
->qf_pfix_len
> 0 ? qf
->qf_pfix
: 0), xstatout
);
1410 _addstats(stats
, 1, i
);
1416 put_from_(FILE *fp
, struct mimepart
*ip
, off_t
*stats
)
1418 char const *froma
, *date
, *nl
;
1422 if (ip
!= NULL
&& ip
->m_from
!= NULL
) {
1424 date
= fakedate(ip
->m_time
);
1428 date
= time_current
.tc_ctime
;
1432 colour_put(fp
, COLOURSPEC_FROM_
);
1433 i
= fprintf(fp
, "From %s %s%s", froma
, date
, nl
);
1436 _addstats(stats
, (*nl
!= '\0'), i
);
1441 sendmp(struct message
*mp
, FILE *obuf
, struct ignoretab
*doign
,
1442 char const *prefix
, enum sendaction action
, off_t
*stats
)
1448 struct mimepart
*ip
;
1452 if (mp
== dot
&& action
!= SEND_TOSRCH
&& action
!= SEND_TOFLTR
)
1455 stats
[0] = stats
[1] = 0;
1456 quoteflt_init(&qf
, prefix
);
1458 /* First line is the From_ line, so no headers there to worry about */
1459 if ((ibuf
= setinput(&mb
, mp
, NEED_BODY
)) == NULL
)
1465 struct str
const *cpre
, *csuf
;
1467 cpre
= colour_get(COLOURSPEC_FROM_
);
1468 csuf
= colour_get(COLOURSPEC_RESET
);
1472 if (mp
->m_flag
& MNOFROM
) {
1473 if (doign
!= allignore
&& doign
!= fwdignore
&& action
!= SEND_RFC822
)
1474 sz
= fprintf(obuf
, "%s%.*sFrom %s %s%s\n",
1475 (cpre
!= NULL
? cpre
->s
: ""),
1476 (int)qf
.qf_pfix_len
, (qf
.qf_pfix_len
!= 0 ? qf
.qf_pfix
: ""),
1477 fakefrom(mp
), fakedate(mp
->m_time
),
1478 (csuf
!= NULL
? csuf
->s
: ""));
1480 if (doign
!= allignore
&& doign
!= fwdignore
&& action
!= SEND_RFC822
) {
1481 if (qf
.qf_pfix_len
> 0) {
1482 i
= fwrite(qf
.qf_pfix
, sizeof *qf
.qf_pfix
, qf
.qf_pfix_len
, obuf
);
1483 if (i
!= qf
.qf_pfix_len
)
1489 fputs(cpre
->s
, obuf
);
1490 cpre
= (struct str
const*)0x1;
1495 while (cnt
> 0 && (c
= getc(ibuf
)) != EOF
) {
1496 if (doign
!= allignore
&& doign
!= fwdignore
&&
1497 action
!= SEND_RFC822
) {
1499 if (c
== '\n' && csuf
!= NULL
) {
1500 cpre
= (struct str
const*)0x1;
1501 fputs(csuf
->s
, obuf
);
1513 if (csuf
!= NULL
&& cpre
!= (struct str
const*)0x1)
1514 fputs(csuf
->s
, obuf
);
1519 _addstats(stats
, 1, sz
);
1522 if (action
!= SEND_MBOX
&& action
!= SEND_RFC822
&& action
!= SEND_SHOW
)
1523 pf
|= PARSE_DECRYPT
| PARSE_PARTS
;
1524 if ((ip
= parsemsg(mp
, pf
)) == NULL
)
1527 rv
= sendpart(mp
, ip
, obuf
, doign
, &qf
, action
, stats
, 0);
1529 quoteflt_destroy(&qf
);
1534 /* vim:set fenc=utf-8:s-it-mode */