/** Flush empty lines from a buffer.
* @param[in,out] dyn Data buffer to flush.
* @return Number of bytes in first available block (or zero if none).
*/
static unsigned int dbuf_flush(struct DBuf *dyn)
{
struct DBufBuffer *db = dyn->head;
if (0 == db)
return 0;
assert(db->start < db->end);
/*
* flush extra line terms
*/
while (IsEol(*db->start))
{
if (++db->start == db->end)
{
dyn->head = db->next;
dbuf_free(db);
if (0 == (db = dyn->head))
{
dyn->tail = 0;
dyn->length = 0;
break;
}
}
--dyn->length;
}
return dyn->length;
}
void
va_emitcode (const char *inst, const char *fmt, va_list ap)
{
const char *line = format_opcode (inst, fmt, ap);
emit_raw (line);
dbuf_free (line);
}
/** Discard data from a DBuf.
* @param[in,out] dyn DBuf to drop data from.
* @param[in] length Number of bytes to discard.
*/
void dbuf_delete(struct DBuf *dyn, unsigned int length)
{
struct DBufBuffer *db;
unsigned int chunk;
if (length > dyn->length)
length = dyn->length;
while (length > 0)
{
if (0 == (db = dyn->head))
break;
chunk = db->end - db->start;
if (chunk > length)
chunk = length;
length -= chunk;
dyn->length -= chunk;
db->start += chunk;
if (db->start == db->end)
{
dyn->head = db->next;
dbuf_free(db);
}
}
if (0 == dyn->head)
{
dyn->length = 0;
dyn->tail = 0;
}
}
/*
** This is called when malloc fails. Scrap the whole content
** of dynamic buffer and return -1. (malloc errors are FATAL,
** there is no reason to continue this buffer...). After this
** the "dbuf" has consistent EMPTY status... ;)
*/
static int dbuf_malloc_error(struct DBuf* dyn)
{
struct DBufBuffer* db;
dyn->length = 0;
while (0 != (db = dyn->head)) {
dyn->head = db->next;
dbuf_free(db);
}
dyn->tail = 0;
return 0;
}
/*
* TASK to handle an incoming request
*/
int server_request (void *parm)
{
SERVERPARM *s;
DBUF *req, *res;
char *curl;
s = (SERVERPARM *) parm;
curl = xml_get_text (s->xml, "Phineas.Console.Url");
res = NULL;
while ((req = server_receive (s->conn)) != NULL)
{
debug ("received %d bytes\n", dbuf_size (req));
if (dbuf_size (req) == 0)
{
dbuf_free (req);
net_close (s->conn);
return (-1);
}
dbuf_putc (req, 0);
/*
* log the request, but filter out GET requests for the console...
* noise
*/
if (!(*curl && strstarts (dbuf_getbuf (req) + 4, curl)))
server_logrequest (s->conn, dbuf_size (req), dbuf_getbuf (req));
if ((res = server_response (s->xml, dbuf_getbuf (req))) == NULL)
{
res = server_respond (500,
"<h3>Failure processing ebXML request</h3>");
}
server_header (res);
net_write (s->conn, dbuf_getbuf (res), dbuf_size (res));
dbuf_free (res);
dbuf_free (req);
}
net_close (s->conn);
debug ("request completed\n");
return (0);
}
/** Handle a memory allocation error on a DBuf.
* This frees all the buffers owned by the DBuf, since we have to
* close the associated connection.
* @param[in] dyn DBuf to clean out.
* @return Zero.
*/
static int dbuf_malloc_error(struct DBuf *dyn)
{
struct DBufBuffer *db;
struct DBufBuffer *next;
for (db = dyn->head; db; db = next)
{
next = db->next;
dbuf_free(db);
}
dyn->tail = dyn->head = 0;
dyn->length = 0;
return 0;
}
/*-----------------------------------------------------------------*/
void
genInline (iCode * ic)
{
char *buf, *bp, *begin;
bool inComment = FALSE;
D (emitcode (";", "genInline"));
genLine.lineElement.isInline += (!options.asmpeep);
buf = bp = begin = Safe_strdup (IC_INLINE (ic));
/* Emit each line as a code */
while (*bp)
{
switch (*bp)
{
case ';':
inComment = TRUE;
++bp;
break;
case '\x87':
case '\n':
inComment = FALSE;
*bp++ = '\0';
/* Don't emit leading whitespaces */
while (isspace (*begin))
++begin;
if (*begin)
emitcode (begin, NULL);
begin = bp;
break;
default:
/* Add \n for labels, not dirs such as c:\mydir */
if (!inComment && (*bp == ':') && (isspace ((unsigned char) bp[1])))
{
++bp;
*bp = '\0';
++bp;
emitcode (begin, NULL);
begin = bp;
}
else
++bp;
break;
}
}
if (begin != bp)
{
/* Don't emit leading whitespaces */
while (isspace (*begin))
++begin;
if (*begin)
emitcode (begin, NULL);
}
Safe_free (buf);
/* consumed; we can free it here */
dbuf_free (IC_INLINE (ic));
genLine.lineElement.isInline -= (!options.asmpeep);
}
/*
* send a message
* return non-zero if message not sent successful with completed
* queue info for status and transport
*/
int ebxml_send (XML*xml, QUEUEROW *r, MIME *msg)
{
DBUF *b;
NETCON *conn;
char host[MAX_PATH]; /* need buffers for redirect */
char path[MAX_PATH];
int port, route, timeout, delay, retry;
SSL_CTX *ctx;
char *rname, /* route name */
*content, /* message content */
buf[MAX_PATH];
/* format up the message */
if ((content = mime_format (msg)) == NULL)
{
queue_field_set (r, "PROCESSINGSTATUS", "done");
queue_field_set (r, "TRANSPORTSTATUS", "failed");
queue_field_set (r, "TRANSPORTERRORCODE", "failed formatting message");
return (-1);
}
debug ("Send content:\n%s\n", content);
/*
* get connection info from the record route
*/
if ((route =
cfg_route_index (xml, queue_field_get (r, "ROUTEINFO"))) < 0)
{
queue_field_set (r, "PROCESSINGSTATUS", "done");
queue_field_set (r, "TRANSPORTSTATUS", "failed");
queue_field_set (r, "TRANSPORTERRORCODE", "bad route");
return (-1);
}
rname = cfg_route (xml, route, "Name");
ctx = ebxml_route_ctx (xml, route);
strcpy (host, cfg_route (xml, route, "Host"));
port = atoi (cfg_route (xml, route, "Port"));
if ((retry = atoi (cfg_route (xml, route, "Retry"))) == 0)
retry = cfg_retries (xml);
timeout = atoi (cfg_route (xml, route, "Timeout"));
delay = cfg_delay (xml);
strcpy (path, cfg_route (xml, route, "Path"));
sendmsg:
info ("Sending ebXML %s:%d to %s\n",
r->queue->name, r->rowid, rname);
debug ("opening connection socket on port=%d retrys=%d timeout=%d\n",
port, retry, timeout);
if ((conn = net_open (host, port, 0, ctx)) == NULL)
{
error ("failed opening connection to %s:%d\n", host, port);
goto retrysend;
}
/* set read timeout if given */
if (timeout)
{
net_timeout (conn, timeout * 1000);
timeout <<= 1; /* bump each try */
}
delay = 0; /* connection OK, don't delay */
queue_field_set (r, "MESSAGESENTTIME", ptime (NULL, buf));
sprintf (buf, "POST %s HTTP/1.1\r\n", path);
// ch = ebxml_beautify (ch);
/* all set... send the message */
debug ("sending message...\n");
net_write (conn, buf, strlen (buf));
net_write (conn, content, strlen (content));
debug ("reading response...\n");
b = ebxml_receive (conn);
debug ("closing socket...\n");
net_close (conn);
/* no reply? */
if (b == NULL)
{
warn ("Send response timed out or closed for %s\n", rname);
retrysend: /* retry with a wait, or.. */
if (retry-- && phineas_running ())
{
if (delay)
{
info ("Retrying send to %s in %d seconds\n", rname, delay);
sleep (delay * 1000);
delay <<= 1;
}
else /* reset connection delay */
delay = cfg_delay (xml);
goto sendmsg;
}
if (ctx != NULL) /* give up! */
SSL_CTX_free (ctx);
free (content);
queue_field_set (r, "PROCESSINGSTATUS", "done");
queue_field_set (r, "TRANSPORTSTATUS", "failed");
queue_field_set (r, "TRANSPORTERRORCODE", "retries exhausted");
return (-1);
}
debug ("reply was %d bytes\n%.*s\n", dbuf_size (b),
dbuf_size (b), dbuf_getbuf (b));
/*
* handle redirects...
* note this assumes the same SSL context should be used
*/
if (ebxml_redirect (dbuf_getbuf (b), host, &port, path))
{
dbuf_free (b);
goto sendmsg;
}
if (ctx != NULL)
SSL_CTX_free (ctx);
if (ebxml_parse_reply (dbuf_getbuf (b), r))
{
queue_field_set (r, "PROCESSINGSTATUS", "done");
queue_field_set (r, "TRANSPORTSTATUS", "failed");
queue_field_set (r, "TRANSPORTERRORCODE", "garbled reply");
}
debug ("send completed\n");
dbuf_free (b);
free (content);
return (0);
}
/*
* Receive a reply message
*/
DBUF *ebxml_receive (NETCON *conn)
{
long n;
int e;
char c, *ch;
DBUF *b;
b = dbuf_alloc ();
n = 0;
/*
* read to end of message request header - empty line
*/
while ((e = net_read (conn, &c, 1)) == 1)
{
dbuf_putc (b, c);
if (c == '\n')
{
if (n++ == 1)
break;
}
else if (c != '\r')
n = 0;
}
if (e != 1)
{
if (e == 0)
error ("Acknowledgment header read failed or connection closed\n");
else
error ("Timed out reading acknowledgment header\n");
dbuf_free (b);
return (NULL);
}
ch = strnstr (dbuf_getbuf (b), "Content-Length: ", dbuf_size (b));
if (ch == NULL)
{
error ("Acknowledgment header missing Content-Length\n");
dbuf_free (b);
return (NULL);
}
n = atol (ch + 16);
debug ("expecting %d bytes\n", n);
readbytes:
while (n--)
{
if ((e = net_read (conn, &c, 1)) != 1)
{
if (e == 0)
error ("Acknowledgment content read failed or connection closed");
else
error ("Timed out reading acknowledgment content\n");
// note we'll take what we get and hope it's enough...
break;
}
dbuf_putc (b, c);
}
if (n = net_available (conn))
{
warn ("Found %d unread bytes...\n", n);
goto readbytes;
}
debug ("returning %d bytes\n", dbuf_size (b));
return (b);
}
/*
* Build and return the mime payload container
*/
MIME *ebxml_getpayload (XML *xml, QUEUEROW *r)
{
int l, mapi;
XML *exml;
MIME *msg;
char *b, /* buffer for payload */
*type,
*unc = NULL, /* encryption info */
*pw = NULL,
dn[DNSZ],
*organization,
pid[MAX_PATH],
buf[MAX_PATH],
fname[MAX_PATH];
debug ("getpayload container...\n");
if ((mapi = ebxml_pid (xml, r, pid)) < 0)
return (NULL);
ppathf (fname, cfg_map (xml, mapi, "Processed"), "%s",
queue_field_get (r, "PAYLOADFILE"));
/* invoke the filter if given */
b = cfg_map (xml, mapi, "Filter");
if (*b)
{
char *emsg;
DBUF *rbuf = dbuf_alloc ();
debug ("filter read %s with %s\n", fname, b);
if (filter_run (b, fname, NULL, NULL, rbuf, &emsg, cfg_timeout (xml)))
{
error ("Can't filter %s - %s\n", fname, strerror (errno));
dbuf_free (rbuf);
return (NULL);
}
if (*emsg)
warn ("filter %s returned %s\n", b, emsg);
free (emsg);
l = dbuf_size (rbuf);
b = dbuf_extract (rbuf);
}
else
{
debug ("reading data from %s\n", fname);
if ((b = readfile (fname, &l)) == NULL)
{
error ("Can't read %s - %s\n", fname, strerror (errno));
return (NULL);
}
}
organization = cfg_org (xml);
type = cfg_map (xml, mapi, "Encryption.Type");
if ((type != NULL) && *type) /* encrypted */
{
unc = cfg_map (xml, mapi, "Encryption.Unc");
pw = cfg_map (xml, mapi, "Encryption.Password");
strcpy (dn, cfg_map (xml, mapi, "Encryption.Id"));
}
msg = payload_create (b, l, fname, organization, unc, dn, pw);
free (b);
if (msg == NULL)
error ("Can't create payload container for %s\n", fname);
return (msg);
}