static int prepRequest(HttpConn *conn, MprList *files, int retry)
{
MprKeyValue *header;
char *seq;
int next;
httpPrepClientConn(conn, retry);
for (next = 0; (header = mprGetNextItem(app->headers, &next)) != 0; ) {
if (scaselessmatch(header->key, "User-Agent")) {
httpSetHeaderString(conn, header->key, header->value);
} else {
httpAppendHeaderString(conn, header->key, header->value);
}
}
if (app->text) {
httpSetHeader(conn, "Accept", "text/plain");
}
if (app->sequence) {
static int next = 0;
seq = itos(next++);
httpSetHeaderString(conn, "X-Http-Seq", seq);
}
if (app->ranges) {
httpSetHeaderString(conn, "Range", app->ranges);
}
if (app->formData) {
httpSetContentType(conn, "application/x-www-form-urlencoded");
}
if (setContentLength(conn, files) < 0) {
return MPR_ERR_CANT_OPEN;
}
return 0;
}
/*
Append a header. If already defined, the value is catenated to the pre-existing value after a ", " separator.
As per the HTTP/1.1 spec.
*/
void espAppendHeader(HttpConn *conn, cchar *key, cchar *fmt, ...)
{
va_list vargs;
mprAssert(key && *key);
mprAssert(fmt && *fmt);
va_start(vargs, fmt);
httpAppendHeaderString(conn, key, sfmt(fmt, vargs));
va_end(vargs);
}
/*
function setHeader(key: String, value: String, overwrite: Boolean = true): Void
*/
static EjsObj *http_setHeader(Ejs *ejs, EjsHttp *hp, int argc, EjsObj **argv)
{
HttpConn *conn;
cchar *key, *value;
bool overwrite;
assert(argc >= 2);
conn = hp->conn;
if (conn->state >= HTTP_STATE_CONNECTED) {
ejsThrowArgError(ejs, "Cannot update request headers once the request has started");
return 0;
}
key = ejsToMulti(ejs, argv[0]);
value = ejsToMulti(ejs, argv[1]);
overwrite = (argc == 3) ? ejsGetBoolean(ejs, argv[2]) : 1;
if (overwrite) {
httpSetHeaderString(hp->conn, key, value);
} else {
httpAppendHeaderString(hp->conn, key, value);
}
return 0;
}
/*
Append a header string. If already defined, the value is catenated to the pre-existing value after a ", " separator.
As per the HTTP/1.1 spec.
*/
void espAppendHeaderString(HttpConn *conn, cchar *key, cchar *value)
{
httpAppendHeaderString(conn, key, value);
}
/*
Set headers for httpWriteHeaders. This defines standard headers.
*/
static void setHeaders(HttpConn *conn, HttpPacket *packet)
{
HttpRx *rx;
HttpTx *tx;
HttpRoute *route;
HttpRange *range;
MprKeyValue *item;
MprOff length;
cchar *mimeType;
int next;
assert(packet->flags == HTTP_PACKET_HEADER);
rx = conn->rx;
tx = conn->tx;
route = rx->route;
/*
Mandatory headers that must be defined here use httpSetHeader which overwrites existing values.
*/
httpAddHeaderString(conn, "Date", conn->http->currentDate);
if (tx->ext && route) {
if ((mimeType = (char*) mprLookupMime(route->mimeTypes, tx->ext)) != 0) {
if (conn->error) {
httpAddHeaderString(conn, "Content-Type", "text/html");
} else {
httpAddHeaderString(conn, "Content-Type", mimeType);
}
}
}
if (tx->etag) {
httpAddHeader(conn, "ETag", "%s", tx->etag);
}
length = tx->length > 0 ? tx->length : 0;
if (rx->flags & HTTP_HEAD) {
conn->tx->flags |= HTTP_TX_NO_BODY;
httpDiscardData(conn, HTTP_QUEUE_TX);
if (tx->chunkSize <= 0) {
httpAddHeader(conn, "Content-Length", "%Ld", length);
}
} else if (tx->length < 0 && tx->chunkSize > 0) {
httpSetHeaderString(conn, "Transfer-Encoding", "chunked");
} else if (conn->endpoint) {
/* Server must not emit a content length header for 1XX, 204 and 304 status */
if (!((100 <= tx->status && tx->status <= 199) || tx->status == 204 ||
tx->status == 304 || tx->flags & HTTP_TX_NO_LENGTH)) {
httpAddHeader(conn, "Content-Length", "%Ld", length);
}
} else if (tx->length > 0) {
/* client with body */
httpAddHeader(conn, "Content-Length", "%Ld", length);
}
if (tx->outputRanges) {
if (tx->outputRanges->next == 0) {
range = tx->outputRanges;
if (tx->entityLength > 0) {
httpSetHeader(conn, "Content-Range", "bytes %Ld-%Ld/%Ld", range->start, range->end - 1, tx->entityLength);
} else {
httpSetHeader(conn, "Content-Range", "bytes %Ld-%Ld/*", range->start, range->end - 1);
}
} else {
httpSetHeader(conn, "Content-Type", "multipart/byteranges; boundary=%s", tx->rangeBoundary);
}
httpSetHeader(conn, "Accept-Ranges", "bytes");
}
if (conn->endpoint) {
if (!(route->flags & HTTP_ROUTE_STEALTH)) {
httpAddHeaderString(conn, "Server", conn->http->software);
}
/*
If keepAliveCount == 1
*/
if (--conn->keepAliveCount > 0) {
assert(conn->keepAliveCount >= 1);
httpAddHeaderString(conn, "Connection", "Keep-Alive");
httpAddHeader(conn, "Keep-Alive", "timeout=%Ld, max=%d", conn->limits->inactivityTimeout / 1000, conn->keepAliveCount);
} else {
/* Tell the peer to close the connection */
httpAddHeaderString(conn, "Connection", "close");
}
if (route->flags & HTTP_ROUTE_CORS) {
setCorsHeaders(conn);
}
/*
Apply response headers
*/
for (ITERATE_ITEMS(route->headers, item, next)) {
if (item->flags == HTTP_ROUTE_ADD_HEADER) {
httpAddHeaderString(conn, item->key, item->value);
} else if (item->flags == HTTP_ROUTE_APPEND_HEADER) {
httpAppendHeaderString(conn, item->key, item->value);
} else if (item->flags == HTTP_ROUTE_REMOVE_HEADER) {
httpRemoveHeader(conn, item->key);
} else if (item->flags == HTTP_ROUTE_SET_HEADER) {
httpSetHeaderString(conn, item->key, item->value);
}
}
}
}
