void rewrite(struct rfc2045 *p, int rwmode)
{
rfc2045_ac_check(p, rwmode);
if (rfc2045_rewrite(p, fileno(stdin), fileno(stdout),
"reformime (" RFC2045PKG " " RFC2045VER ")"))
{
perror("reformime");
exit(1);
}
}
int SubmitFile::MessageEnd(unsigned rcptnum, int iswhitelisted,
int filter_enabled)
{
int is8bit=0, dorewrite=0, rwmode=0;
const char *mime=getenv("MIME");
unsigned n;
struct stat stat_buf;
if (sizelimit && bytecount > sizelimit)
{
std::cout << "523 Message length (" <<
sizelimit << " bytes) exceeds administrative limit."
<< std::endl << std::flush;
return (1);
}
if (diskfull)
{
std::cout << "431 Mail system full." << std::endl << std::flush;
return (1);
}
if (spamtrap_flag)
{
std::cout << "550 Spam refused." << std::endl << std::flush;
return (1);
}
if (rwrfcptr->rfcviolation & RFC2045_ERR2COMPLEX)
{
std::cout <<
"550 Message MIME complexity exceeds the policy maximum."
<< std::endl << std::flush;
return (1);
}
datfile << std::flush;
if (datfile.fail()) clog_msg_errno();
ctlfile << std::flush;
if (ctlfile.fail()) clog_msg_errno();
/* Run global filters for this message */
std::string dfile=namefile("D", 0);
if (!mime || strcmp(mime, "none"))
{
if (mime && strcmp(mime, "7bit") == 0)
{
rwmode=RFC2045_RW_7BIT;
is8bit=0;
}
if (mime && strcmp(mime, "8bit") == 0)
rwmode=RFC2045_RW_8BIT;
if (rfc2045_ac_check(rwrfcptr, rwmode))
dorewrite=1;
}
else
(void)rfc2045_ac_check(rwrfcptr, 0);
if (rwrfcptr->has8bitchars)
is8bit=1;
unlink(namefile("D", 1).c_str()); // Might be the GDBM file
// if receipients read from headers.
if (dorewrite)
{
int fd1=dup(datfile.fd());
int fd2;
if (fd1 < 0) clog_msg_errno();
datfile.close();
if (datfile.fail()) clog_msg_errno();
if ((fd2=open(namefile("D", 1).c_str(),
O_RDWR|O_CREAT|O_TRUNC, PERMISSION)) < 0)
clog_msg_errno();
if (call_rfc2045_rewrite(rwrfcptr, fd1, fd2,
PACKAGE " " VERSION))
{
clog_msg_errno();
std::cout << "431 Mail system full." << std::endl << std::flush;
return (1);
}
close(fd1);
#if EXPLICITSYNC
fsync(fd2);
#endif
fstat(fd2, &stat_buf);
close(fd2);
std::string p=namefile("D", 0);
unlink(p.c_str());
if (rename(namefile("D", 1).c_str(), p.c_str()) != 0)
clog_msg_errno();
}
else
{
datfile.sync();
#if EXPLICITSYNC
fsync(datfile.fd());
#endif
fstat(datfile.fd(), &stat_buf);
datfile.close();
if (datfile.fail()) clog_msg_errno();
}
if (is8bit)
{
ctlfile << COMCTLFILE_8BIT << "\n" << std::flush;
closectl();
if (num_control_files_created > 1)
{
for (n=1; n < num_control_files_created; n++)
{
std::string p=namefile("C", n);
int nfd=open(p.c_str(), O_WRONLY | O_APPEND);
if (nfd < 0) clog_msg_errno();
ctlfile.fd(nfd);
ctlfile << COMCTLFILE_8BIT << "\n" << std::flush;
if (ctlfile.fail()) clog_msg_errno();
#if EXPLICITSYNC
ctlfile.sync();
fsync(ctlfile.fd());
#endif
ctlfile.close();
if (ctlfile.fail()) clog_msg_errno();
}
}
}
else
{
closectl();
}
SubmitFile *voidp=this;
if (filter_enabled &&
run_filter(dfile.c_str(), num_control_files_created,
iswhitelisted,
&SubmitFile::get_msgid_for_filtering, &voidp))
return (1);
std::string cfile=namefile("C", 0);
for (n=2; n <= num_control_files_created; n++)
{
if (link(dfile.c_str(), namefile("D", n).c_str()) != 0)
clog_msg_errno();
}
std::string okmsg("250 Ok. ");
okmsg += basemsgid;
int hasxerror=datafilter(dfile.c_str(), rcptnum, okmsg.c_str());
current_submit_file=0;
if (num_control_files_created == 1)
{
if (rename(name1stctlfile().c_str(), cfile.c_str()) != 0)
clog_msg_errno();
}
else
{
if (rename(namefile("C", 1).c_str(), cfile.c_str()) != 0)
clog_msg_errno();
}
if (!hasxerror)
{
#if EXPLICITDIRSYNC
size_t p=cfile.rfind('/');
if (p != std::string::npos)
{
std::string dir=cfile.substr(0, p);
int fd=open(dir.c_str(), O_RDONLY);
if (fd >= 0)
{
fsync(fd);
close(fd);
}
}
#endif
std::cout << okmsg << std::endl << std::flush;
}
trigger(TRIGGER_NEWMSG);
return (0);
}
int rfc2045_ac_check(struct rfc2045 *p, int rwmode)
{
int flag=0; /* Flag - rewriting suggested */
struct rfc2045 *c;
int hasnon7bit=p->has8bitchars;
/* hasnon7bit: 8bit chars in this section or subsections */
const char *te;
int is8bitte;
for (c=p->firstpart; c; c=c->next)
if (!c->isdummy)
{
if (rfc2045_ac_check(c, rwmode)) flag=1;
if (strcmp(c->content_transfer_encoding, "7bit") &&
strcmp(c->content_transfer_encoding, "quoted-printable"))
hasnon7bit=1;
if (c->has8bitchars)
p->has8bitchars=1;
}
if (RFC2045_ISMIME1DEF(p->mime_version) && !p->content_type)
{
if ((p->content_type=strdup("text/plain")) == 0)
rfc2045_enomem();
if (p->mime_version)
{
flag=1;
}
}
if (RFC2045_ISMIME1DEF(p->mime_version)
&& !rfc2045_getattr(p->content_type_attr, "charset")
&& strncasecmp(p->content_type, "text/", 5) == 0)
{
rfc2045_setattr(&p->content_type_attr, "charset",
rfc2045_getdefaultcharset());
if (p->mime_version
&& p->firstpart == 0 /* sam - don't trigger rewrites on changes to multipart headers */
)
{
flag=1;
}
}
if (RFC2045_ISMIME1DEF(p->mime_version)
&& !p->content_transfer_encoding)
{
if ((p->content_transfer_encoding=strdup(
hasnon7bit ? "8bit":"7bit")) == 0)
rfc2045_enomem();
if (p->mime_version
&& p->firstpart == 0 /* sam - don't trigger rewrites on changes to multipart headers */
)
{
flag=1;
}
}
#if 0
if (RFC2045_ISMIME1DEF(p->mime_version)
&& strncmp(p->content_type, "text/", 5) == 0 && !hasnon7bit
&& strcmp(p->content_transfer_encoding, "7bit"))
{
if (p->mime_version)
{
flag=1;
}
}
#endif
if (RFC2045_ISMIME1DEF(p->mime_version))
{
/* Check for conversions */
te=p->content_transfer_encoding;
is8bitte=strcasecmp(te, "base64") &&
strcasecmp(te, "quoted-printable") &&
strcasecmp(te, "7bit"); /* 8 bit contents */
if (is8bitte && !p->has8bitchars && !p->haslongline)
{
if (p->rw_transfer_encoding)
free(p->rw_transfer_encoding);
if ((p->rw_transfer_encoding=strdup("7bit")) == 0)
rfc2045_enomem();
flag=1;
is8bitte=0;
}
if (rwmode == RFC2045_RW_7BIT && (is8bitte || p->haslongline))
{
if (p->rw_transfer_encoding)
free(p->rw_transfer_encoding);
if ((p->rw_transfer_encoding=strdup("quoted-printable"))
== 0)
rfc2045_enomem();
flag=1;
}
else if (rwmode == RFC2045_RW_8BIT &&
strcasecmp(te, "quoted-printable") == 0 &&
!p->haslongline)
{
if (p->rw_transfer_encoding)
free(p->rw_transfer_encoding);
if ((p->rw_transfer_encoding=strdup(hasnon7bit
? "8bit":"7bit")) == 0)
rfc2045_enomem();
flag=1;
}
}
if (!p->mime_version)
{
if ((p->mime_version=strdup("1.0")) == 0)
rfc2045_enomem();
}
return (flag);
}
