262 lines
11 KiB
C
262 lines
11 KiB
C
/*============================================================================
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xmlrpc_client.h
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==============================================================================
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This header file defines the interface between xmlrpc.c and its users,
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related to clients.
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Copyright information is at the end of the file.
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============================================================================*/
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#ifndef _XMLRPC_CLIENT_H_
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#define _XMLRPC_CLIENT_H_ 1
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/*=========================================================================
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** Initialization and Shutdown
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**=========================================================================
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** These routines initialize and terminate the XML-RPC client. If you're
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** already using libwww on your own, you can pass
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** XMLRPC_CLIENT_SKIP_LIBWWW_INIT to avoid initializing it twice.
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*/
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#define XMLRPC_CLIENT_NO_FLAGS (0)
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#define XMLRPC_CLIENT_SKIP_LIBWWW_INIT (1)
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extern void
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xmlrpc_client_init(int const flags,
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const char * const appname,
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const char * const appversion);
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struct xmlrpc_clientparms {
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const char * transport;
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};
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#define XMLRPC_CP_MEMBER_OFFSET(mbrname) \
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((unsigned int)(char*)&((struct xmlrpc_clientparms *)0)->mbrname)
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#define XMLRPC_CP_MEMBER_SIZE(mbrname) \
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sizeof(((struct xmlrpc_clientparms *)0)->mbrname)
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#define XMLRPC_CPSIZE(mbrname) \
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(XMLRPC_CP_MEMBER_OFFSET(mbrname) + XMLRPC_CP_MEMBER_SIZE(mbrname))
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/* XMLRPC_CPSIZE(xyz) is the minimum size a struct xmlrpc_clientparms
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must be to include the 'xyz' member. This is essential to forward and
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backward compatbility, as new members will be added to the end of the
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struct in future releases. This is how the callee knows whether or
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not the caller is new enough to have supplied a certain parameter.
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*/
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void
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xmlrpc_client_init2(xmlrpc_env * const env,
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int const flags,
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const char * const appname,
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const char * const appversion,
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struct xmlrpc_clientparms * const clientparms,
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unsigned int const parm_size);
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extern void
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xmlrpc_client_cleanup(void);
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const char *
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xmlrpc_client_get_default_transport(xmlrpc_env * const env);
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/*=========================================================================
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** Required for both internal and external development.
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**=========================================================================
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*/
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/* A callback function to handle the response to an asynchronous call.
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** If 'fault->fault_occurred' is true, then response will be NULL. All
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** arguments except 'user_data' will be deallocated internally; please do
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** not free any of them yourself.
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** WARNING: param_array may (or may not) be NULL if fault->fault_occurred
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** is true, and you set up the call using xmlrpc_client_call_asynch.
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** WARNING: If asynchronous calls are still pending when the library is
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** shut down, your handler may (or may not) be called with a fault. */
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typedef void (*xmlrpc_response_handler) (const char *server_url,
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const char *method_name,
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xmlrpc_value *param_array,
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void *user_data,
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xmlrpc_env *fault,
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xmlrpc_value *result);
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/*=========================================================================
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** xmlrpc_server_info
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**=========================================================================
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** We normally refer to servers by URL. But sometimes we need to do extra
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** setup for particular servers. In that case, we can create an
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** xmlrpc_server_info object, configure it in various ways, and call the
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** remote server.
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**
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** (This interface is also designed to discourage further multiplication
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** of xmlrpc_client_call APIs. We have enough of those already. Please
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** add future options and flags using xmlrpc_server_info.)
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*/
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typedef struct _xmlrpc_server_info xmlrpc_server_info;
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/* Create a new server info record, pointing to the specified server. */
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xmlrpc_server_info *
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xmlrpc_server_info_new(xmlrpc_env * const env,
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const char * const server_url);
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/* Create a new server info record, with a copy of the old server. */
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extern xmlrpc_server_info *
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xmlrpc_server_info_copy(xmlrpc_env *env, xmlrpc_server_info *src_server);
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/* Delete a server info record. */
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extern void
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xmlrpc_server_info_free (xmlrpc_server_info *server);
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/* We support rudimentary basic authentication. This lets us talk to Zope
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** servers and similar critters. When called, this routine makes a copy
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** of all the authentication information and passes it to future requests.
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** Only the most-recently-set authentication information is used.
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** (In general, you shouldn't write XML-RPC servers which require this
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** kind of authentication--it confuses many client implementations.)
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** If we fail, leave the xmlrpc_server_info record unchanged. */
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void
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xmlrpc_server_info_set_basic_auth(xmlrpc_env * const envP,
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xmlrpc_server_info * const serverP,
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const char * const username,
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const char * const password);
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/*=========================================================================
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** xmlrpc_client_call
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**=========================================================================
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** A synchronous XML-RPC client. Do not attempt to call any of these
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** functions from inside an asynchronous callback!
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*/
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xmlrpc_value *
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xmlrpc_client_call(xmlrpc_env * const envP,
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const char * const server_url,
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const char * const method_name,
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const char * const format,
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...);
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xmlrpc_value *
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xmlrpc_client_call_params (xmlrpc_env * const env,
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const char * const server_url,
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const char * const method_name,
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xmlrpc_value * const param_array);
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xmlrpc_value *
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xmlrpc_client_call_server(xmlrpc_env * const envP,
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xmlrpc_server_info * const server,
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const char * const method_name,
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const char * const format,
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...);
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extern xmlrpc_value *
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xmlrpc_client_call_server_params (xmlrpc_env *env,
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xmlrpc_server_info *server,
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char *method_name,
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xmlrpc_value *param_array);
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/*=========================================================================
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** xmlrpc_client_call_asynch
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**=========================================================================
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** An asynchronous XML-RPC client.
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*/
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/* Make an asynchronous XML-RPC call. We make internal copies of all
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** arguments except user_data, so you can deallocate them safely as soon
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** as you return. Errors will be passed to the callback. You will need
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** to run the event loop somehow; see below.
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** WARNING: If an error occurs while building the argument, the
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** response handler will be called with a NULL param_array. */
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void
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xmlrpc_client_call_asynch(const char * const server_url,
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const char * const method_name,
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xmlrpc_response_handler callback,
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void * const user_data,
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const char * const format,
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...);
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/* As above, but use an xmlrpc_server_info object. The server object can be
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** safely destroyed as soon as this function returns. */
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void
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xmlrpc_client_call_server_asynch(xmlrpc_server_info * const server,
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const char * const method_name,
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xmlrpc_response_handler callback,
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void * const user_data,
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const char * const format,
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...);
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/* As above, but the parameter list is supplied as an xmlrpc_value
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** containing an array.
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*/
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void
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xmlrpc_client_call_asynch_params(const char * const server_url,
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const char * const method_name,
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xmlrpc_response_handler callback,
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void * const user_data,
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xmlrpc_value * const paramArrayP);
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/* As above, but use an xmlrpc_server_info object. The server object can be
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** safely destroyed as soon as this function returns. */
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void
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xmlrpc_client_call_server_asynch_params(
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xmlrpc_server_info * const server,
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const char * const method_name,
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xmlrpc_response_handler callback,
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void * const user_data,
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xmlrpc_value * const paramArrayP);
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/*=========================================================================
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** Event Loop Interface
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**=========================================================================
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** These functions can be used to run the XML-RPC event loop. If you
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** don't like these, you can also run the libwww event loop directly.
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*/
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/* Finish all outstanding asynchronous calls. Alternatively, the loop
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** will exit if someone calls xmlrpc_client_event_loop_end. */
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extern void
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xmlrpc_client_event_loop_finish_asynch(void);
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/* Finish all outstanding asynchronous calls. */
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extern void
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xmlrpc_client_event_loop_finish_asynch_timeout(timeout_t const milliseconds);
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/* Copyright (C) 2001 by First Peer, Inc. All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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** SUCH DAMAGE. */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* _XMLRPC_CLIENT_H_ */
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