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180 lines
8.0 KiB
C
180 lines
8.0 KiB
C
/* 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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#ifndef _XMLRPC_SERVER_H_
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#define _XMLRPC_SERVER_H_ 1
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#include <xmlrpc.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*=========================================================================
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** XML-RPC Server Method Registry
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**=========================================================================
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** A method registry maintains a list of functions, and handles
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** dispatching. To build an XML-RPC server, just add an XML-RPC protocol
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** driver.
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**
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** Methods are C functions which take some combination of the following
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** parameters. All pointers except user_data belong to the library, and
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** must not be freed by the callback or used after the callback returns.
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**
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** env: An XML-RPC error-handling environment. No faults will be
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** set when the function is called. If an error occurs,
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** set an appropriate fault and return NULL. (If a fault is
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** set, the NULL return value will be enforced!)
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** host: The 'Host:' header passed by the XML-RPC client, or NULL,
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** if no 'Host:' header has been provided.
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** method_name: The name used to call this method.
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** user_data: The user_data used to register this method.
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** param_array: The parameters passed to this function, stored in an
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** XML-RPC array. You are *not* responsible for calling
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** xmlrpc_DECREF on this array.
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**
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** Return value: If no fault has been set, the function must return a
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** valid xmlrpc_value. This will be serialized, returned
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** to the caller, and xmlrpc_DECREF'd.
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*/
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/* A function to call before invoking a method for doing things like access
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** control or sanity checks. If a fault is set from this function, the
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** method will not be called and the fault will be returned. */
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typedef void
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(*xmlrpc_preinvoke_method)(xmlrpc_env * env,
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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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/* An ordinary method. */
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typedef xmlrpc_value *
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(*xmlrpc_method)(xmlrpc_env * env,
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xmlrpc_value * param_array,
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void * user_data);
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/* A default method to call if no method can be found. */
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typedef xmlrpc_value *
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(*xmlrpc_default_method)(xmlrpc_env * env,
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const char * host,
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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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/* Our registry structure. This has no public members. */
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typedef struct _xmlrpc_registry xmlrpc_registry;
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/* Create a new method registry. */
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xmlrpc_registry *
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xmlrpc_registry_new(xmlrpc_env * env);
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/* Delete a method registry. */
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void
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xmlrpc_registry_free(xmlrpc_registry * registry);
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/* Disable introspection. The xmlrpc_registry has introspection
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** capability built-in. If you want to make nosy people work harder,
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** you can turn this off. */
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void
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xmlrpc_registry_disable_introspection(xmlrpc_registry * registry);
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/* Register a method. The host parameter must be NULL (for now). You
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** are responsible for owning and managing user_data. The registry
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** will make internal copies of any other pointers it needs to
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** keep around. */
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void
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xmlrpc_registry_add_method(xmlrpc_env * env,
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xmlrpc_registry * registry,
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const char * host,
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const char * method_name,
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xmlrpc_method method,
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void * user_data);
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/* As above, but allow the user to supply introspection information.
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**
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** Signatures use their own little description language. It consists
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** of one-letter type code (similar to the ones used in xmlrpc_parse_value)
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** for the result, a colon, and zero or more one-letter type codes for
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** the parameters. For example:
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** i:ibdsAS86
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** If a function has more than one possible prototype, separate them with
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** commas:
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** i:,i:s,i:ii
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** If the function signature can't be represented using this language,
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** pass a single question mark:
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** ?
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** Help strings are ASCII text, and may contain HTML markup. */
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void
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xmlrpc_registry_add_method_w_doc(xmlrpc_env * env,
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xmlrpc_registry * registry,
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const char * host,
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const char * method_name,
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xmlrpc_method method,
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void * user_data,
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const char * signature,
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const char * help);
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/* Given a registry, a host name, and XML data; parse the <methodCall>,
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** find the appropriate method, call it, serialize the response, and
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** return it as an xmlrpc_mem_block. Most errors will be serialized
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** as <fault> responses. If a *really* bad error occurs, set a fault and
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** return NULL. (Actually, we currently give up with a fatal error,
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** but that should change eventually.)
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** The caller is responsible for destroying the memory block. */
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xmlrpc_mem_block *
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xmlrpc_registry_process_call(xmlrpc_env * const envP,
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xmlrpc_registry * const registryP,
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const char * const host,
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const char * const xml_data,
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size_t const xml_len);
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/* Define a default method for the specified registry. This will be invoked
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** if no other method matches. The user_data pointer is property of the
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** application, and will not be freed or manipulated by the registry. */
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void
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xmlrpc_registry_set_default_method(xmlrpc_env * env,
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xmlrpc_registry * registry,
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xmlrpc_default_method handler,
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void * user_data);
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/* Define a preinvoke method for the specified registry. This function will
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** be called before any method (either the default or a registered one) is
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** invoked. Applications can use this to do things like access control or
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** sanity checks. The user_data pointer is property of the application,
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** and will not be freed or manipulated by the registry. */
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void
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xmlrpc_registry_set_preinvoke_method(xmlrpc_env * env,
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xmlrpc_registry * registry,
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xmlrpc_preinvoke_method method,
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void * user_data);
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#ifdef __cplusplus
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}
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#endif
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#endif
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