TSHttpTxnServerIntercept¶
Intercept origin server requests.
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_EVENT_NET_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)