static EIO_Status s_VT_Wait
(CONNECTOR connector,
EIO_Event event,
const STimeout* timeout)
{
SHttpConnector* uuu = (SHttpConnector*) connector->handle;
switch (event) {
case eIO_Read:
if (uuu->can_connect == eCC_None)
return eIO_Closed;
if (!uuu->sock || uuu->read_header) {
EIO_Status status = s_PreRead(uuu, timeout, eRM_WaitCalled);
if (status != eIO_Success || BUF_Size(uuu->r_buf))
return status;
assert(uuu->sock);
}
return SOCK_Wait(uuu->sock, eIO_Read, timeout);
case eIO_Write:
/* Return 'Closed' if no more writes are allowed (and now - reading) */
return uuu->can_connect == eCC_None
|| (uuu->sock && uuu->can_connect == eCC_Once)
? eIO_Closed : eIO_Success;
default:
assert(0);
return eIO_InvalidArg;
}
}
static EIO_Status s_VT_Wait
(CONNECTOR connector,
EIO_Event event,
const STimeout* timeout)
{
SSockConnector* xxx = (SSockConnector*) connector->handle;
assert(event == eIO_Read || event == eIO_Write);
assert(xxx->sock);
return SOCK_Wait(xxx->sock, event, timeout);
}
const char* CORE_SendMailEx(const char* to,
const char* subject,
const char* body,
const SSendMailInfo* uinfo)
{
static const STimeout zero = {0, 0};
const SSendMailInfo* info;
SSendMailInfo ainfo;
char buffer[1024];
SOCK sock = 0;
info = uinfo ? uinfo : SendMailInfo_Init(&ainfo);
if (info->magic_number != MX_MAGIC_NUMBER)
SENDMAIL_RETURN(6, "Invalid magic number");
if ((!to || !*to) &&
(!info->cc || !*info->cc) &&
(!info->bcc || !*info->bcc)) {
SENDMAIL_RETURN(7, "At least one message recipient must be specified");
}
/* Open connection to sendmail */
if (SOCK_Create(info->mx_host, info->mx_port, &info->mx_timeout, &sock)
!= eIO_Success) {
SENDMAIL_RETURN(8, "Cannot connect to sendmail");
}
SOCK_SetTimeout(sock, eIO_ReadWrite, &info->mx_timeout);
/* Follow the protocol conversation, RFC821 */
if (!SENDMAIL_READ_RESPONSE(220, 0, buffer))
SENDMAIL_RETURN2(9, "Protocol error in connection init", buffer);
if ((!(info->mx_options & fSendMail_StripNonFQDNHost) ||
!SOCK_gethostbyaddr(0, buffer, sizeof(buffer))) &&
SOCK_gethostname(buffer, sizeof(buffer)) != 0) {
SENDMAIL_RETURN(10, "Unable to get local host name");
}
if (!s_SockWrite(sock, "HELO ", 0) ||
!s_SockWrite(sock, buffer, 0) ||
!s_SockWrite(sock, MX_CRLF, 2)) {
SENDMAIL_RETURN(11, "Write error in HELO command");
}
if (!SENDMAIL_READ_RESPONSE(250, 0, buffer))
SENDMAIL_RETURN2(12, "Protocol error in HELO command", buffer);
if (!s_SockWrite(sock, "MAIL FROM: <", 0) ||
!s_SockWrite(sock, info->from, s_FromSize(info)) ||
!s_SockWrite(sock, ">" MX_CRLF, 1 + 2)) {
SENDMAIL_RETURN(13, "Write error in MAIL command");
}
if (!SENDMAIL_READ_RESPONSE(250, 0, buffer))
SENDMAIL_RETURN2(14, "Protocol error in MAIL command", buffer);
if (to && *to) {
const char* error = SENDMAIL_SENDRCPT("To", to, buffer);
if (error)
return error;
}
if (info->cc && *info->cc) {
const char* error = SENDMAIL_SENDRCPT("Cc", info->cc, buffer);
if (error)
return error;
}
if (info->bcc && *info->bcc) {
const char* error = SENDMAIL_SENDRCPT("Bcc", info->bcc, buffer);
if (error)
return error;
}
if (!s_SockWrite(sock, "DATA" MX_CRLF, 0))
SENDMAIL_RETURN(15, "Write error in DATA command");
if (!SENDMAIL_READ_RESPONSE(354, 0, buffer))
SENDMAIL_RETURN2(16, "Protocol error in DATA command", buffer);
if (!(info->mx_options & fSendMail_NoMxHeader)) {
/* Follow RFC822 to compose message headers. Note that
* 'Date:'and 'From:' are both added by sendmail automagically.
*/
if (!s_SockWrite(sock, "Subject: ", 0) ||
(subject && !s_SockWrite(sock, subject, 0)) ||
!s_SockWrite(sock, MX_CRLF, 2))
SENDMAIL_RETURN(17, "Write error in sending subject");
if (to && *to) {
if (!s_SockWrite(sock, "To: ", 0) ||
!s_SockWrite(sock, to, 0) ||
!s_SockWrite(sock, MX_CRLF, 2))
SENDMAIL_RETURN(18, "Write error in sending To");
}
if (info->cc && *info->cc) {
if (!s_SockWrite(sock, "Cc: ", 0) ||
!s_SockWrite(sock, info->cc, 0) ||
!s_SockWrite(sock, MX_CRLF, 2))
SENDMAIL_RETURN(19, "Write error in sending Cc");
}
} else if (subject && *subject)
CORE_LOG_X(2, eLOG_Warning,
"[SendMail] Subject ignored in as-is messages");
if (!s_SockWrite(sock, "X-Mailer: CORE_SendMail (NCBI "
NCBI_SENDMAIL_TOOLKIT " Toolkit)" MX_CRLF, 0)) {
SENDMAIL_RETURN(20, "Write error in sending mailer information");
}
assert(sizeof(buffer) > sizeof(MX_CRLF) && sizeof(MX_CRLF) >= 3);
if (info->header && *info->header) {
size_t n = 0, m = strlen(info->header);
int/*bool*/ newline = 0/*false*/;
while (n < m) {
size_t k = 0;
if (SOCK_Wait(sock, eIO_Read, &zero) != eIO_Timeout)
break;
while (k < sizeof(buffer) - sizeof(MX_CRLF)) {
if (info->header[n] == '\n') {
memcpy(&buffer[k], MX_CRLF, sizeof(MX_CRLF) - 1);
k += sizeof(MX_CRLF) - 1;
newline = 1/*true*/;
} else {
if (info->header[n] != '\r' || info->header[n+1] != '\n')
buffer[k++] = info->header[n];
newline = 0/*false*/;
}
if (++n >= m)
break;
}
buffer[k] = '\0'/*just in case*/;
if (!s_SockWrite(sock, buffer, k))
SENDMAIL_RETURN(21, "Write error while sending custom header");
}
if (n < m)
SENDMAIL_RETURN(22, "Header write error");
if (!newline && !s_SockWrite(sock, MX_CRLF, 2))
SENDMAIL_RETURN(23, "Write error while finalizing custom header");
}
if (body) {
size_t n = 0, m = info->body_size ? info->body_size : strlen(body);
int/*bool*/ newline = 0/*false*/;
if (!(info->mx_options & fSendMail_NoMxHeader) && m) {
if (!s_SockWrite(sock, MX_CRLF, 2))
SENDMAIL_RETURN(24, "Write error in message body delimiter");
}
while (n < m) {
size_t k = 0;
if (SOCK_Wait(sock, eIO_Read, &zero) != eIO_Timeout)
break;
while (k < sizeof(buffer) - sizeof(MX_CRLF)) {
if (body[n] == '\n') {
memcpy(&buffer[k], MX_CRLF, sizeof(MX_CRLF) - 1);
k += sizeof(MX_CRLF) - 1;
newline = 1/*true*/;
} else {
if (body[n] != '\r' || (n+1 < m && body[n+1] != '\n')){
if (body[n] == '.' && (newline || !n)) {
buffer[k++] = '.';
buffer[k++] = '.';
} else
buffer[k++] = body[n];
}
newline = 0/*false*/;
}
if (++n >= m)
break;
}
buffer[k] = '\0'/*just in case*/;
if (!s_SockWrite(sock, buffer, k))
SENDMAIL_RETURN(25, "Write error while sending message body");
}
if (n < m)
SENDMAIL_RETURN(26, "Body write error");
if ((!newline && m && !s_SockWrite(sock, MX_CRLF, 2))
|| !s_SockWrite(sock, "." MX_CRLF, 1 + 2)) {
SENDMAIL_RETURN(27, "Write error while finalizing message body");
}
} else if (!s_SockWrite(sock, "." MX_CRLF, 1 + 2))
SENDMAIL_RETURN(28, "Write error while finalizing message");
if (!SENDMAIL_READ_RESPONSE(250, 0, buffer))
SENDMAIL_RETURN2(29, "Protocol error in sending message", buffer);
if (!s_SockWrite(sock, "QUIT" MX_CRLF, 0))
SENDMAIL_RETURN(30, "Write error in QUIT command");
if (!SENDMAIL_READ_RESPONSE(221, 0, buffer))
SENDMAIL_RETURN2(31, "Protocol error in QUIT command", buffer);
SOCK_Close(sock);
return 0;
}
