static void mail_rcpt(MIME_NODE *node, const HEADER_OPTS *header_info)
{
TOK822 *tree;
TOK822 **addr_list;
TOK822 **tpp;
ACL_VSTRING *temp;
const char *cp;
temp = acl_vstring_alloc(10);
cp = STR(node->buffer) + strlen(header_info->name) + 1;
tree = tok822_parse(cp);
addr_list = tok822_grep(tree, TOK822_ADDR);
for (tpp = addr_list; *tpp; tpp++) {
tok822_internalize(temp, tpp[0]->head, TOK822_STR_DEFL);
if (header_info->type == HDR_TO) {
node->header_to_list =
mail_addr_add(node->header_to_list, STR(temp));
} else if (header_info->type == HDR_CC) {
node->header_cc_list =
mail_addr_add(node->header_cc_list, STR(temp));
} else if (header_info->type == HDR_BCC) {
node->header_bcc_list =
mail_addr_add(node->header_bcc_list, STR(temp));
}
}
acl_myfree(addr_list);
tok822_free_tree(tree);
acl_vstring_free(temp);
}
const std::list<rfc822_addr*>& rfc822::parse_addrs(const char* in,
const char* to_charset /* = "utf-8" */)
{
reset();
if (to_charset == NULL)
to_charset = "gb18030";
if (in == NULL || *in == 0)
{
logger_error("input invalid");
return (addrs_);
}
TOK822 *tree = tok822_parse(in);
if (tree == NULL)
{
logger_error("tok822_parse(%s) error", in);
return (addrs_);
}
const ACL_VSTRING* comment_prev = NULL;
string buf;
for (TOK822 *tp = tree; tp; tp = tp->next)
{
if (tp->type == TOK822_ATOM
|| tp->type == TOK822_COMMENT
|| tp->type == TOK822_QSTRING
|| tp->vstr != NULL)
{
comment_prev = tp->vstr;
}
if (tp->type != TOK822_ADDR || tp->head == NULL)
continue;
ACL_VSTRING* addrp = acl_vstring_alloc(32);
(void) tok822_internalize(addrp, tp->head, TOK822_STR_DEFL);
rfc822_addr* addr = (rfc822_addr*)
acl_mymalloc(sizeof(rfc822_addr));
addr->addr = acl_vstring_export(addrp);
if (comment_prev)
{
buf.clear();
rfc2047::decode(STR(comment_prev),
(int) LEN(comment_prev), &buf, to_charset);
addr->comment = acl_mystrdup(buf.c_str());
comment_prev = NULL;
}
else
addr->comment = NULL;
addrs_.push_back(addr);
}
tok822_free_tree(tree);
return (addrs_);
}
ARGV *mail_addr_crunch(const char *string, const char *extension)
{
VSTRING *extern_addr = vstring_alloc(100);
VSTRING *canon_addr = vstring_alloc(100);
ARGV *argv = argv_alloc(1);
TOK822 *tree;
TOK822 **addr_list;
TOK822 **tpp;
char *ratsign;
ssize_t extlen;
if (extension)
extlen = strlen(extension);
#define STR(x) vstring_str(x)
/*
* Parse the string, rewrite each address to canonical form, and convert
* the result to external (quoted) form. Optionally apply the extension
* to each address found.
*
* XXX Workaround for the null address. This works for envelopes but
* produces ugly results for message headers.
*/
if (*string == 0 || strcmp(string, "<>") == 0)
string = "\"\"";
tree = tok822_parse(string);
addr_list = tok822_grep(tree, TOK822_ADDR);
for (tpp = addr_list; *tpp; tpp++) {
tok822_externalize(extern_addr, tpp[0]->head, TOK822_STR_DEFL);
canon_addr_external(canon_addr, STR(extern_addr));
if (extension) {
VSTRING_SPACE(canon_addr, extlen + 1);
if ((ratsign = strrchr(STR(canon_addr), '@')) == 0) {
vstring_strcat(canon_addr, extension);
} else {
memmove(ratsign + extlen, ratsign, strlen(ratsign) + 1);
memcpy(ratsign, extension, extlen);
VSTRING_SKIP(canon_addr);
}
}
argv_add(argv, STR(canon_addr), ARGV_END);
}
argv_terminate(argv);
myfree((char *) addr_list);
tok822_free_tree(tree);
vstring_free(canon_addr);
vstring_free(extern_addr);
return (argv);
}
static void mail_from(MIME_NODE *node, const HEADER_OPTS *header_info)
{
//MIME_STATE *state = node->state;
TOK822 *tree;
TOK822 **addr_list;
TOK822 **tpp;
ACL_VSTRING *temp;
const char *cp;
temp = acl_vstring_alloc(10);
cp = STR(node->buffer) + strlen(header_info->name) + 1;
tree = tok822_parse(cp);
addr_list = tok822_grep(tree, TOK822_ADDR);
for (tpp = addr_list; *tpp; tpp++) {
tok822_internalize(temp, tpp[0]->head, TOK822_STR_DEFL);
if (header_info->type == HDR_SENDER) {
if (node->header_sender)
acl_myfree(node->header_sender);
node->header_sender = acl_mystrdup(STR(temp));
break;
} else if (header_info->type == HDR_FROM) {
if (node->header_from)
acl_myfree(node->header_from);
node->header_from = acl_mystrdup(STR(temp));
break;
} else if (header_info->type == HDR_REPLY_TO) {
if (node->header_replyto)
acl_myfree(node->header_replyto);
node->header_replyto = acl_mystrdup(STR(temp));
break;
} else if (header_info->type == HDR_RETURN_PATH) {
if (node->header_returnpath)
acl_myfree(node->header_returnpath);
node->header_returnpath = acl_mystrdup(STR(temp));
}
}
acl_myfree(addr_list);
tok822_free_tree(tree);
acl_vstring_free(temp);
}
static void enqueue(const int flags, const char *encoding,
const char *dsn_envid, int dsn_ret, int dsn_notify,
const char *rewrite_context, const char *sender,
const char *full_name, char **recipients)
{
VSTRING *buf;
VSTREAM *dst;
char *saved_sender;
char **cpp;
int type;
char *start;
int skip_from_;
TOK822 *tree;
TOK822 *tp;
int rcpt_count = 0;
enum {
STRIP_CR_DUNNO, STRIP_CR_DO, STRIP_CR_DONT, STRIP_CR_ERROR
} strip_cr;
MAIL_STREAM *handle;
VSTRING *postdrop_command;
uid_t uid = getuid();
int status;
int naddr;
int prev_type;
MIME_STATE *mime_state = 0;
SM_STATE state;
int mime_errs;
const char *errstr;
int addr_count;
int level;
static NAME_CODE sm_fix_eol_table[] = {
SM_FIX_EOL_ALWAYS, STRIP_CR_DO,
SM_FIX_EOL_STRICT, STRIP_CR_DUNNO,
SM_FIX_EOL_NEVER, STRIP_CR_DONT,
0, STRIP_CR_ERROR,
};
/*
* Access control is enforced in the postdrop command. The code here
* merely produces a more user-friendly interface.
*/
if ((errstr = check_user_acl_byuid(VAR_SUBMIT_ACL,
var_submit_acl, uid)) != 0)
msg_fatal_status(EX_NOPERM,
"User %s(%ld) is not allowed to submit mail", errstr, (long) uid);
/*
* Initialize.
*/
buf = vstring_alloc(100);
/*
* Stop run-away process accidents by limiting the queue file size. This
* is not a defense against DOS attack.
*/
if (var_message_limit > 0 && get_file_limit() > var_message_limit)
set_file_limit((off_t) var_message_limit);
/*
* The sender name is provided by the user. In principle, the mail pickup
* service could deduce the sender name from queue file ownership, but:
* pickup would not be able to run chrooted, and it may not be desirable
* to use login names at all.
*/
if (sender != 0) {
VSTRING_RESET(buf);
VSTRING_TERMINATE(buf);
tree = tok822_parse(sender);
for (naddr = 0, tp = tree; tp != 0; tp = tp->next)
if (tp->type == TOK822_ADDR && naddr++ == 0)
tok822_internalize(buf, tp->head, TOK822_STR_DEFL);
tok822_free_tree(tree);
saved_sender = mystrdup(STR(buf));
if (naddr > 1)
msg_warn("-f option specified malformed sender: %s", sender);
} else {
if ((sender = username()) == 0)
msg_fatal_status(EX_OSERR, "no login name found for user ID %lu",
(unsigned long) uid);
saved_sender = mystrdup(sender);
}
/*
* Let the postdrop command open the queue file for us, and sanity check
* the content. XXX Make postdrop a manifest constant.
*/
errno = 0;
postdrop_command = vstring_alloc(1000);
vstring_sprintf(postdrop_command, "%s/postdrop -r", var_command_dir);
for (level = 0; level < msg_verbose; level++)
vstring_strcat(postdrop_command, " -v");
if ((handle = mail_stream_command(STR(postdrop_command))) == 0)
msg_fatal_status(EX_UNAVAILABLE, "%s(%ld): unable to execute %s: %m",
saved_sender, (long) uid, STR(postdrop_command));
vstring_free(postdrop_command);
dst = handle->stream;
/*
* First, write envelope information to the output stream.
*
* For sendmail compatibility, parse each command-line recipient as if it
* were an RFC 822 message header; some MUAs specify comma-separated
* recipient lists; and some MUAs even specify "word word <address>".
*
* Sort-uniq-ing the recipient list is done after address canonicalization,
* before recipients are written to queue file. That's cleaner than
* having the queue manager nuke duplicate recipient status records.
*
* XXX Should limit the size of envelope records.
*
* With "sendmail -N", instead of a per-message NOTIFY record we store one
* per recipient so that we can simplify the implementation somewhat.
*/
if (dsn_envid)
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%s",
MAIL_ATTR_DSN_ENVID, dsn_envid);
if (dsn_ret)
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%d",
MAIL_ATTR_DSN_RET, dsn_ret);
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%s",
MAIL_ATTR_RWR_CONTEXT, rewrite_context);
if (full_name || (full_name = fullname()) != 0)
rec_fputs(dst, REC_TYPE_FULL, full_name);
rec_fputs(dst, REC_TYPE_FROM, saved_sender);
if (verp_delims && *saved_sender == 0)
msg_fatal_status(EX_USAGE,
"%s(%ld): -V option requires non-null sender address",
saved_sender, (long) uid);
if (encoding)
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%s", MAIL_ATTR_ENCODING, encoding);
if (DEL_REQ_TRACE_FLAGS(flags))
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%d", MAIL_ATTR_TRACE_FLAGS,
DEL_REQ_TRACE_FLAGS(flags));
if (verp_delims)
rec_fputs(dst, REC_TYPE_VERP, verp_delims);
if (recipients) {
for (cpp = recipients; *cpp != 0; cpp++) {
tree = tok822_parse(*cpp);
for (addr_count = 0, tp = tree; tp != 0; tp = tp->next) {
if (tp->type == TOK822_ADDR) {
tok822_internalize(buf, tp->head, TOK822_STR_DEFL);
if (dsn_notify)
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%d",
MAIL_ATTR_DSN_NOTIFY, dsn_notify);
if (REC_PUT_BUF(dst, REC_TYPE_RCPT, buf) < 0)
msg_fatal_status(EX_TEMPFAIL,
"%s(%ld): error writing queue file: %m",
saved_sender, (long) uid);
++rcpt_count;
++addr_count;
}
}
tok822_free_tree(tree);
if (addr_count == 0) {
if (rec_put(dst, REC_TYPE_RCPT, "", 0) < 0)
msg_fatal_status(EX_TEMPFAIL,
"%s(%ld): error writing queue file: %m",
saved_sender, (long) uid);
++rcpt_count;
}
}
}
/*
* Append the message contents to the queue file. Write chunks of at most
* 1kbyte. Internally, we use different record types for data ending in
* LF and for data that doesn't, so we can actually be binary transparent
* for local mail. Unfortunately, SMTP has no record continuation
* convention, so there is no guarantee that arbitrary data will be
* delivered intact via SMTP. Strip leading From_ lines. For the benefit
* of UUCP environments, also get rid of leading >>>From_ lines.
*/
rec_fputs(dst, REC_TYPE_MESG, "");
if (DEL_REQ_TRACE_ONLY(flags) != 0) {
if (flags & SM_FLAG_XRCPT)
msg_fatal_status(EX_USAGE, "%s(%ld): -t option cannot be used with -bv",
saved_sender, (long) uid);
if (*saved_sender)
rec_fprintf(dst, REC_TYPE_NORM, "From: %s", saved_sender);
rec_fprintf(dst, REC_TYPE_NORM, "Subject: probe");
if (recipients) {
rec_fprintf(dst, REC_TYPE_CONT, "To:");
for (cpp = recipients; *cpp != 0; cpp++) {
rec_fprintf(dst, REC_TYPE_NORM, " %s%s",
*cpp, cpp[1] ? "," : "");
}
}
} else {
/*
* Initialize the MIME processor and set up the callback context.
*/
if (flags & SM_FLAG_XRCPT) {
state.dst = dst;
state.recipients = argv_alloc(2);
state.resent_recip = argv_alloc(2);
state.resent = 0;
state.saved_sender = saved_sender;
state.uid = uid;
state.temp = vstring_alloc(10);
mime_state = mime_state_alloc(MIME_OPT_DISABLE_MIME
| MIME_OPT_REPORT_TRUNC_HEADER,
output_header,
(MIME_STATE_ANY_END) 0,
output_text,
(MIME_STATE_ANY_END) 0,
(MIME_STATE_ERR_PRINT) 0,
(void *) &state);
}
/*
* Process header/body lines.
*/
skip_from_ = 1;
strip_cr = name_code(sm_fix_eol_table, NAME_CODE_FLAG_STRICT_CASE,
var_sm_fix_eol);
if (strip_cr == STRIP_CR_ERROR)
msg_fatal_status(EX_USAGE,
"invalid %s value: %s", VAR_SM_FIX_EOL, var_sm_fix_eol);
for (prev_type = 0; (type = rec_streamlf_get(VSTREAM_IN, buf, var_line_limit))
!= REC_TYPE_EOF; prev_type = type) {
if (strip_cr == STRIP_CR_DUNNO && type == REC_TYPE_NORM) {
if (VSTRING_LEN(buf) > 0 && vstring_end(buf)[-1] == '\r')
strip_cr = STRIP_CR_DO;
else
strip_cr = STRIP_CR_DONT;
}
if (skip_from_) {
if (type == REC_TYPE_NORM) {
start = STR(buf);
if (strncmp(start + strspn(start, ">"), "From ", 5) == 0)
continue;
}
skip_from_ = 0;
}
if (strip_cr == STRIP_CR_DO && type == REC_TYPE_NORM)
while (VSTRING_LEN(buf) > 0 && vstring_end(buf)[-1] == '\r')
vstring_truncate(buf, VSTRING_LEN(buf) - 1);
if ((flags & SM_FLAG_AEOF) && prev_type != REC_TYPE_CONT
&& VSTRING_LEN(buf) == 1 && *STR(buf) == '.')
break;
if (mime_state) {
mime_errs = mime_state_update(mime_state, type, STR(buf),
VSTRING_LEN(buf));
if (mime_errs)
msg_fatal_status(EX_DATAERR,
"%s(%ld): unable to extract recipients: %s",
saved_sender, (long) uid,
mime_state_error(mime_errs));
} else {
if (REC_PUT_BUF(dst, type, buf) < 0)
msg_fatal_status(EX_TEMPFAIL,
"%s(%ld): error writing queue file: %m",
saved_sender, (long) uid);
}
}
}
/*
* Finish MIME processing. We need a final mime_state_update() call in
* order to flush text that is still buffered. That can happen when the
* last line did not end in newline.
*/
if (mime_state) {
mime_errs = mime_state_update(mime_state, REC_TYPE_EOF, "", 0);
if (mime_errs)
msg_fatal_status(EX_DATAERR,
"%s(%ld): unable to extract recipients: %s",
saved_sender, (long) uid,
mime_state_error(mime_errs));
mime_state = mime_state_free(mime_state);
}
/*
* Append recipient addresses that were extracted from message headers.
*/
rec_fputs(dst, REC_TYPE_XTRA, "");
if (flags & SM_FLAG_XRCPT) {
for (cpp = state.resent ? state.resent_recip->argv :
state.recipients->argv; *cpp; cpp++) {
if (dsn_notify)
rec_fprintf(dst, REC_TYPE_ATTR, "%s=%d",
MAIL_ATTR_DSN_NOTIFY, dsn_notify);
if (rec_put(dst, REC_TYPE_RCPT, *cpp, strlen(*cpp)) < 0)
msg_fatal_status(EX_TEMPFAIL,
"%s(%ld): error writing queue file: %m",
saved_sender, (long) uid);
++rcpt_count;
}
argv_free(state.recipients);
argv_free(state.resent_recip);
vstring_free(state.temp);
}
if (rcpt_count == 0)
msg_fatal_status(EX_USAGE, (flags & SM_FLAG_XRCPT) ?
"%s(%ld): No recipient addresses found in message header" :
"%s(%ld): Recipient addresses must be specified on"
" the command line or via the -t option",
saved_sender, (long) uid);
/*
* Identify the end of the queue file.
*/
rec_fputs(dst, REC_TYPE_END, "");
/*
* Make sure that the message makes it to the file system. Once we have
* terminated with successful exit status we cannot lose the message due
* to "frivolous reasons". If all goes well, prevent the run-time error
* handler from removing the file.
*/
if (vstream_ferror(VSTREAM_IN))
msg_fatal_status(EX_DATAERR, "%s(%ld): error reading input: %m",
saved_sender, (long) uid);
if ((status = mail_stream_finish(handle, (VSTRING *) 0)) != 0)
msg_fatal_status((status & CLEANUP_STAT_BAD) ? EX_SOFTWARE :
(status & CLEANUP_STAT_WRITE) ? EX_TEMPFAIL :
EX_UNAVAILABLE, "%s(%ld): %s", saved_sender,
(long) uid, cleanup_strerror(status));
/*
* Don't leave them in the dark.
*/
if (DEL_REQ_TRACE_FLAGS(flags)) {
vstream_printf("Mail Delivery Status Report will be mailed to <%s>.\n",
saved_sender);
vstream_fflush(VSTREAM_OUT);
}
/*
* Cleanup. Not really necessary as we're about to exit, but good for
* debugging purposes.
*/
vstring_free(buf);
myfree(saved_sender);
}
static void output_header(void *context, int header_class,
const HEADER_OPTS *header_info,
VSTRING *buf, off_t offset)
{
SM_STATE *state = (SM_STATE *) context;
TOK822 *tree;
TOK822 **addr_list;
TOK822 **tpp;
ARGV *rcpt;
char *start;
char *line;
char *next_line;
ssize_t len;
/*
* Parse the header line, and save copies of recipient addresses in the
* appropriate place.
*/
if (header_class == MIME_HDR_PRIMARY
&& header_info
&& (header_info->flags & HDR_OPT_RECIP)
&& (header_info->flags & HDR_OPT_EXTRACT)
&& (state->resent == 0 || (header_info->flags & HDR_OPT_RR))) {
if (header_info->flags & HDR_OPT_RR) {
rcpt = state->resent_recip;
if (state->resent == 0)
state->resent = 1;
} else
rcpt = state->recipients;
tree = tok822_parse(STR(buf) + strlen(header_info->name) + 1);
addr_list = tok822_grep(tree, TOK822_ADDR);
for (tpp = addr_list; *tpp; tpp++) {
tok822_internalize(state->temp, tpp[0]->head, TOK822_STR_DEFL);
argv_add(rcpt, STR(state->temp), (char *) 0);
}
myfree((void *) addr_list);
tok822_free_tree(tree);
}
/*
* Pipe the unmodified message header through the header line folding
* routine, and ensure that long lines are chopped appropriately.
*/
for (line = start = STR(buf); line; line = next_line) {
next_line = split_at(line, '\n');
len = next_line ? next_line - line - 1 : strlen(line);
do {
if (len > var_line_limit) {
output_text(context, REC_TYPE_CONT, line, var_line_limit, offset);
line += var_line_limit;
len -= var_line_limit;
offset += var_line_limit;
} else {
output_text(context, REC_TYPE_NORM, line, len, offset);
offset += len;
break;
}
} while (len > 0);
offset += 1;
}
}
