NAME¶
TSHttpTxnServerIntercept - intercept origin server requests
SYNOPSIS¶
#include <ts/ts.h>
- void TSHttpTxnServerIntercept(TSCont contp,
TSHttpTxn txnp)
DESCRIPTION¶
TSHttpTxnServerIntercept() allows a plugin take over the servicing of the
request as though it was the origin server. In the event a request needs to be
made to the server for transaction
txnp,
contp will be sent a
TS_EVENT_NET_ACCEPT event. The
edata passed with
TS_NET_EVENT_ACCEPT is an
TSVConn just as it would be for a
normal accept. The plugin must act as if it is an HTTP server and read the
HTTP request and body from the
TSVConn and send an HTTP response header
and body.
TSHttpTxnServerIntercept() must be not be called after the connection to
the server has taken place. This means that the last hook that it can be
called from is
TS_HTTP_READ_CACHE_HDR_HOOK. If a connection to the
server is not necessary, the continuation
contp will be sent a
TS_EVENT_NET_ACCEPT_FAILED event when the transaction completes.
The response from the plugin is cached subject to standard and configured HTTP
caching rules. Should the plugin wish the response not be cached, the plugin
must use appropriate HTTP response headers to prevent caching. The primary
purpose of
TSHttpTxnServerIntercept() is allow plugins to provide
gateways to other protocols or to allow to plugin to its own transport for the
next hop to the server.
TSHttpTxnServerIntercept() overrides parent
cache configuration.
TSHttpTxnServerIntercept() must only be called once per transaction. The
continuation
contp must have been created with a valid
TSMutex.
SEE ALSO¶
TSAPI(3ts)
COPYRIGHT¶
2015, dev@trafficserver.apache.org