/usr/include/bobcat/milter is in libbobcat-dev 3.23.01-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define INCLUDED_BOBCAT_MILTER_
#include <sys/types.h>
#include <sys/stat.h>
#include <libmilter/mfapi.h>
#include <unordered_map>
#include <string>
namespace FBB
{
class Milter
{
static std::string s_name;
static Milter *s_mp;
static bool s_callClose;
typedef std::unordered_map<SMFICTX *, Milter *>::iterator iterator;
static std::unordered_map<SMFICTX *, Milter *> s_map;
SMFICTX *d_ctx; // for local use only
public:
typedef size_t callback_set;
enum CallBack
{
CONNECT = 1 << 0,
HELO = 1 << 1,
SENDER = 1 << 2,
RECIPIENT = 1 << 3,
HEADER = 1 << 4,
EOH = 1 << 5,
BODY = 1 << 6,
EOM = 1 << 7,
ABORT = 1 << 8,
CLOSE = 1 << 9,
UNKNOWN = 1 << 10, // version > 2
DATA = 1 << 11, // version > 3
ALL_CALLBACKS = (DATA << 1) - 1
};
typedef unsigned long flag_set;
enum Flags
{
NO_FLAGS = 0L,
ADD_HEADERS = SMFIF_ADDHDRS, // filter may add headers
ADD_RECIPIENTS = SMFIF_ADDRCPT, // filter may add recipients
CHANGE_BODY = SMFIF_CHGBODY, // filter may replace body
CHANGE_HEADERS = SMFIF_CHGHDRS, // filter may change/delete
// headers
DELETE_RECIPIENTS = SMFIF_DELRCPT, // filter may delete recipients
QUARANTINE = SMFIF_QUARANTINE, // filter may quarantine
// envelope
ALL_FLAGS = ADD_HEADERS | ADD_RECIPIENTS |
CHANGE_BODY | CHANGE_HEADERS |
DELETE_RECIPIENTS | QUARANTINE
};
enum Status
{
ACCEPT = SMFIS_ACCEPT,
CONTINUE = SMFIS_CONTINUE,
DISCARD = SMFIS_DISCARD,
REJECT = SMFIS_REJECT,
TEMPFAIL = SMFIS_TEMPFAIL,
};
enum Return
{
FAILURE = MI_FAILURE,
SUCCESS = MI_SUCCESS,
};
static void initialize(std::string const &name, Milter &milter,
callback_set callbacks = CONNECT, flag_set flags = NO_FLAGS);
static bool start()
{
return smfi_main() == MI_SUCCESS;
}
static void stop()
{
smfi_stop();
}
static std::string const &name()
{
return s_name;
}
protected:
virtual ~Milter(); // empty
virtual sfsistat abort();
bool addHeader(std::string const &hdrName,
std::string const &hdrValue)
{
return smfi_addheader(d_ctx,
const_cast<char *>(hdrName.c_str()),
const_cast<char *>(hdrValue.c_str()))
== SUCCESS;
}
// from eom() only
// hdr-name: without :
// hdr-value: \n and \t ok.
bool addRecipient(std::string const &rcptName)
{
return smfi_addrcpt(d_ctx,
const_cast<char *>(rcptName.c_str())) == SUCCESS;
}
virtual sfsistat body(unsigned char *text, size_t length);
bool changeHeader(std::string const &hdrName,
unsigned headerNr, std::string const &hdrValue)
{
return smfi_chgheader(d_ctx,
const_cast<char *>(hdrName.c_str()),
headerNr,
hdrValue.length() ?
const_cast<char *>(hdrValue.c_str())
:
0
) == SUCCESS;
}
virtual Milter *clone() const = 0; // cloning required
virtual sfsistat close();
virtual sfsistat connect(char *hostname, _SOCK_ADDR *hostaddr);
#if SMFI_VERSION > 3
virtual sfsistat data();
#endif
bool deleteRecipient(std::string const &rcptName)
{
return smfi_delrcpt(d_ctx,
const_cast<char *>(rcptName.c_str())) == SUCCESS;
}
virtual sfsistat eoh();
virtual sfsistat eom();
virtual sfsistat header(char *headerf, char *headerv);
virtual sfsistat helo(char *helohost);
SMFICTX *id() const
{
return d_ctx;
}
bool insertHeader(size_t hdrIdx, std::string const &hdrName,
std::string const &hdrValue)
{
return smfi_insheader(d_ctx, hdrIdx,
const_cast<char *>(hdrName.c_str()),
const_cast<char *>(hdrValue.c_str()));
}
static bool openSocket(bool removeIfTrue = true)
{
return smfi_opensocket(removeIfTrue) == SUCCESS;
}
bool quarantine(std::string const &reason)
{
return smfi_quarantine(d_ctx,
const_cast<char *>(reason.c_str())) == SUCCESS;
}
virtual sfsistat recipient(char **argv);
bool replaceBody(std::string const &body)
{
return smfi_replacebody(d_ctx,
reinterpret_cast<unsigned char *>
(
const_cast<char *>(body.c_str())
),
body.length()) == SUCCESS;
}
virtual sfsistat sender(char **argv);
static bool setBacklog(size_t backlog = 5)
{
return smfi_setbacklog(backlog) == SUCCESS;
}
static void setConnection(std::string const &socketName)
{
smfi_setconn(const_cast<char *>(socketName.c_str()));
}
bool setReply(std::string const &rcode, std::string const &xcode = "",
std::string const &msg = "")
{
return smfi_setreply(d_ctx,
const_cast<char *>(rcode.c_str()),
xcode.length() ?
const_cast<char *>(xcode.c_str())
:
0,
const_cast<char *>(msg.c_str()));
// rcode: The three-digit (RFC 821/2821) SMTP reply code, as a
// null-terminated string. rcode cannot be NULL, and must be a
// valid 4XX or 5XX reply code.
// xxcode The extended (RFC 1893/2034) reply code. If xcode is
// NULL, no extended code is used. Otherwise, xcode must
// conform to RFC 1893/2034.
// * Values passed to smfi_setreply are not checked for
// standards compliance.
// * The message parameter should contain only printable
// characters, other characters may lead to undefined
// behavior. For example, CR or LF will cause the call to
// fail, single '%' characters will cause the text to be
// ignored (if there really should be a '%' in the string, use
// '%%' just like for printf(3)).
// * If the reply code (rcode) given is a '4XX' code but
// SMFI_REJECT is used for the message, the custom reply is
// not used.
// * Similarly, if the reply code (rcode) given is a '5XX'
// code but SMFI_TEMPFAIL is used for the message, the custom
// reply is not used.
// Note: in neither of the last two cases an error is returned
// to the milter, libmilter silently ignores the reply code.
// * If the milter returns SMFI_TEMPFAIL and sets the reply
// code to '421', then the SMTP server will terminate the SMTP
// session with a 421 error code.
}
// can't do smfi_setmlreply(ctx, ...)
// since there is no smfi_Vsetmlreply(ctx, ...)
static void setTimeout(size_t seconds = 7210)
{
smfi_settimeout(seconds);
}
char const *symval(std::string const &name) const
{
return smfi_getsymval(d_ctx,
const_cast<char *>(name.c_str()));
}
#if SMFI_VERSION > 2
sfsistat unknown(char const *ptr);
#endif
bool wait() // from eom() only
{
return smfi_progress(d_ctx) == SUCCESS;
}
private:
static Milter *install(SMFICTX *ctx);
static sfsistat mConnect(SMFICTX *ctx, char *hostname,
_SOCK_ADDR *hostaddr)
{
return install(ctx)->connect(hostname, hostaddr);
}
static sfsistat mAbort(SMFICTX *ctx)
{
return install(ctx)->abort();
}
static sfsistat mBody(SMFICTX *ctx, unsigned char *body, size_t len)
{
return install(ctx)->body(body, len);
}
static sfsistat mSender(SMFICTX *ctx, char **argv)
{
return install(ctx)->sender(argv);
}
static sfsistat mRecipient(SMFICTX *ctx, char **argv)
{
return install(ctx)->recipient(argv);
}
static sfsistat mEoh(SMFICTX *ctx)
{
return install(ctx)->eoh();
}
static sfsistat mEom(SMFICTX *ctx)
{
return install(ctx)->eom();
}
static sfsistat mHeader(SMFICTX *ctx, char *headerf, char *headerv)
{
return install(ctx)->header(headerf, headerv);
}
static sfsistat mHelo(SMFICTX *ctx, char *helohost)
{
return install(ctx)->helo(helohost);
}
static sfsistat mClose(SMFICTX *ctx);
#if SMFI_VERSION > 2
static sfsistat mUnknown(SMFICTX *ctx, char const *ptr)
{
return install(ctx)->unknown(ptr);
}
#endif /* SMFI_VERSION > 2 */
#if SMFI_VERSION > 3
static sfsistat mData(SMFICTX *ctx)
{
return install(ctx)->data();
}
#endif /* SMFI_VERSION > 3 */
};
}
#endif
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