/*
Handle Trace and Options requests. Handlers can do this themselves if they desire, but typically
all Trace/Options requests come here.
*/
void httpHandleOptionsTrace(HttpConn *conn)
{
HttpRx *rx;
HttpTx *tx;
int flags;
tx = conn->tx;
rx = conn->rx;
if (rx->flags & HTTP_TRACE) {
/* The trace method is disabled by default unless 'TraceMethod on' is specified */
if (!conn->limits->enableTraceMethod) {
tx->status = HTTP_CODE_NOT_ACCEPTABLE;
httpFormatResponseBody(conn, "Trace Request Denied", "The TRACE method is disabled on this server.");
} else {
httpFormatResponse(conn, "%s %s %s\r\n", rx->method, rx->uri, conn->protocol);
}
/* This finalizes output and indicates the request is now complete */
httpFinalize(conn);
} else if (rx->flags & HTTP_OPTIONS) {
flags = tx->traceMethods;
httpSetHeader(conn, "Allow", "OPTIONS%s%s%s%s%s%s",
(conn->limits->enableTraceMethod) ? ",TRACE" : "",
(flags & HTTP_STAGE_GET) ? ",GET" : "",
(flags & HTTP_STAGE_HEAD) ? ",HEAD" : "",
(flags & HTTP_STAGE_POST) ? ",POST" : "",
(flags & HTTP_STAGE_PUT) ? ",PUT" : "",
(flags & HTTP_STAGE_DELETE) ? ",DELETE" : "");
httpOmitBody(conn);
httpSetContentLength(conn, 0);
httpFinalize(conn);
}
}
/*
The current request has an error and cannot complete as normal. This call sets the Http response status and
overrides the normal output with an alternate error message. If the output has alread started (headers sent), then
the connection MUST be closed so the client can get some indication the request failed.
*/
static void errorv(HttpConn *conn, int flags, cchar *fmt, va_list args)
{
HttpRx *rx;
HttpTx *tx;
cchar *uri;
int status;
assert(fmt);
rx = conn->rx;
tx = conn->tx;
if (conn == 0) {
return;
}
status = flags & HTTP_CODE_MASK;
if (status == 0) {
status = HTTP_CODE_INTERNAL_SERVER_ERROR;
}
if (flags & (HTTP_ABORT | HTTP_CLOSE)) {
conn->keepAliveCount = 0;
}
if (flags & HTTP_ABORT) {
conn->connError = 1;
if (rx) {
rx->eof = 1;
}
}
if (!conn->error) {
conn->error = 1;
httpOmitBody(conn);
conn->errorMsg = formatErrorv(conn, status, fmt, args);
mprLog(2, "Error: %s", conn->errorMsg);
HTTP_NOTIFY(conn, HTTP_EVENT_ERROR, 0);
if (conn->endpoint) {
if (status == HTTP_CODE_NOT_FOUND) {
httpMonitorEvent(conn, HTTP_COUNTER_NOT_FOUND_ERRORS, 1);
}
httpMonitorEvent(conn, HTTP_COUNTER_ERRORS, 1);
}
httpAddHeaderString(conn, "Cache-Control", "no-cache");
if (conn->endpoint && tx && rx) {
if (tx->flags & HTTP_TX_HEADERS_CREATED) {
/*
If the response headers have been sent, must let the other side of the failure ... aborting
the request is the only way as the status has been sent.
*/
flags |= HTTP_ABORT;
} else {
if (rx->route && (uri = httpLookupRouteErrorDocument(rx->route, tx->status)) && !smatch(uri, rx->uri)) {
errorRedirect(conn, uri);
} else {
makeAltBody(conn, status);
}
}
}
httpFinalize(conn);
}
if (flags & HTTP_ABORT) {
httpDisconnect(conn);
}
}
static void openFileHandler(HttpQueue *q)
{
HttpRx *rx;
HttpTx *tx;
HttpRoute *route;
HttpConn *conn;
MprPath *info;
char *date;
conn = q->conn;
tx = conn->tx;
rx = conn->rx;
route = rx->route;
info = &tx->fileInfo;
if (rx->flags & (HTTP_PUT | HTTP_DELETE)) {
if (!(route->flags & HTTP_ROUTE_PUT_DELETE_METHODS)) {
httpError(q->conn, HTTP_CODE_BAD_METHOD, "The \"%s\" method is not supported by file handler", rx->method);
}
} else {
if (rx->flags & (HTTP_GET | HTTP_HEAD | HTTP_POST)) {
if (!(info->valid || info->isDir)) {
if (rx->referrer) {
mprLog(2, "fileHandler: Cannot find filename %s from referrer %s", tx->filename, rx->referrer);
} else {
mprLog(2, "fileHandler: Cannot find filename %s", tx->filename);
}
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot find %s", rx->uri);
} else if (info->valid) {
if (!tx->etag) {
/* Set the etag for caching in the client */
tx->etag = sfmt("\"%Lx-%Lx-%Lx\"", (int64) info->inode, (int64) info->size, (int64) info->mtime);
}
}
}
if (rx->flags & (HTTP_GET | HTTP_HEAD | HTTP_POST) && !conn->error) {
if (tx->fileInfo.valid && tx->fileInfo.mtime) {
// TODO - OPT could cache this
date = httpGetDateString(&tx->fileInfo);
httpSetHeader(conn, "Last-Modified", date);
}
if (httpContentNotModified(conn)) {
httpSetStatus(conn, HTTP_CODE_NOT_MODIFIED);
httpOmitBody(conn);
tx->length = -1;
}
if (!tx->fileInfo.isReg && !tx->fileInfo.isLink) {
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot locate document: %s", rx->uri);
} else if (tx->fileInfo.size > conn->limits->transmissionBodySize) {
httpError(conn, HTTP_ABORT | HTTP_CODE_REQUEST_TOO_LARGE,
"Http transmission aborted. File size exceeds max body of %,Ld bytes",
conn->limits->transmissionBodySize);
} else if (!(tx->connector == conn->http->sendConnector)) {
/*
If using the net connector, open the file if a body must be sent with the response. The file will be
automatically closed when the request completes.
*/
if (!(tx->flags & HTTP_TX_NO_BODY)) {
tx->file = mprOpenFile(tx->filename, O_RDONLY | O_BINARY, 0);
if (tx->file == 0) {
if (rx->referrer) {
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot open document: %s from %s",
tx->filename, rx->referrer);
} else {
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot open document: %s from %s", tx->filename);
}
}
}
}
} else if (rx->flags & (HTTP_OPTIONS | HTTP_TRACE)) {
if (route->flags & HTTP_ROUTE_PUT_DELETE_METHODS) {
httpHandleOptionsTrace(q->conn, "DELETE,GET,HEAD,POST,PUT");
} else {
httpHandleOptionsTrace(q->conn, "GET,HEAD,POST");
}
}
}
}
static int openFileHandler(HttpQueue *q)
{
HttpRx *rx;
HttpTx *tx;
HttpConn *conn;
MprPath *info;
char *date, dbuf[16];
MprHash *dateCache;
conn = q->conn;
tx = conn->tx;
rx = conn->rx;
info = &tx->fileInfo;
if (conn->error) {
return MPR_ERR_CANT_OPEN;
}
if (rx->flags & (HTTP_GET | HTTP_HEAD | HTTP_POST)) {
if (!(info->valid || info->isDir)) {
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot find document");
return 0;
}
if (!tx->etag) {
/* Set the etag for caching in the client */
tx->etag = sfmt("\"%llx-%llx-%llx\"", (int64) info->inode, (int64) info->size, (int64) info->mtime);
}
if (info->mtime) {
dateCache = conn->http->dateCache;
if ((date = mprLookupKey(dateCache, itosbuf(dbuf, sizeof(dbuf), (int64) info->mtime, 10))) == 0) {
if (!dateCache || mprGetHashLength(dateCache) > 128) {
conn->http->dateCache = dateCache = mprCreateHash(0, 0);
}
date = httpGetDateString(&tx->fileInfo);
mprAddKey(dateCache, itosbuf(dbuf, sizeof(dbuf), (int64) info->mtime, 10), date);
}
httpSetHeaderString(conn, "Last-Modified", date);
}
if (httpContentNotModified(conn)) {
httpSetStatus(conn, HTTP_CODE_NOT_MODIFIED);
httpOmitBody(conn);
tx->length = -1;
}
if (!tx->fileInfo.isReg && !tx->fileInfo.isLink) {
httpTrace(conn, "request.document.error", "error", "msg: 'Document is not a regular file', filename: '%s'",
tx->filename);
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot serve document");
} else if (tx->fileInfo.size > conn->limits->transmissionBodySize) {
httpError(conn, HTTP_ABORT | HTTP_CODE_REQUEST_TOO_LARGE,
"Http transmission aborted. File size exceeds max body of %'lld bytes",
conn->limits->transmissionBodySize);
} else if (!(tx->connector == conn->http->sendConnector)) {
/*
If using the net connector, open the file if a body must be sent with the response. The file will be
automatically closed when the request completes.
*/
if (!(tx->flags & HTTP_TX_NO_BODY)) {
tx->file = mprOpenFile(tx->filename, O_RDONLY | O_BINARY, 0);
if (tx->file == 0) {
if (rx->referrer && *rx->referrer) {
httpTrace(conn, "request.document.error", "error",
"msg: 'Cannot open document', filename: '%s', referrer: '%s'",
tx->filename, rx->referrer);
} else {
httpTrace(conn, "request.document.error", "error",
"msg: 'Cannot open document', filename: '%s'", tx->filename);
}
httpError(conn, HTTP_CODE_NOT_FOUND, "Cannot open document");
}
}
}
} else if (rx->flags & (HTTP_DELETE | HTTP_OPTIONS | HTTP_PUT)) {
;
} else {
httpError(conn, HTTP_CODE_BAD_METHOD, "Unsupported method");
}
return 0;
}
