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freeswitch/libs/xmlrpc-c/src/registry.c

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/*=========================================================================
XML-RPC Server Method Registry
===========================================================================
These are the functions that implement the XML-RPC method registry.
A method registry is a list of XML-RPC methods for a server to
implement, along with the details of how to implement each -- most
notably a function pointer for a function that executes the method.
To build an XML-RPC server, just add a communication facility.
Copyright information is at end of file
=========================================================================*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "xmlrpc_config.h"
#include "bool.h"
#include "mallocvar.h"
#include "xmlrpc-c/base_int.h"
#include "xmlrpc-c/string_int.h"
#include "xmlrpc-c/base.h"
#include "xmlrpc-c/server.h"
#include "method.h"
#include "system_method.h"
#include "version.h"
#include "registry.h"
unsigned int const xmlrpc_server_version_major = XMLRPC_VERSION_MAJOR;
unsigned int const xmlrpc_server_version_minor = XMLRPC_VERSION_MINOR;
unsigned int const xmlrpc_server_version_point = XMLRPC_VERSION_POINT;
xmlrpc_registry *
xmlrpc_registry_new(xmlrpc_env * const envP) {
xmlrpc_registry * registryP;
XMLRPC_ASSERT_ENV_OK(envP);
MALLOCVAR(registryP);
if (registryP == NULL)
xmlrpc_faultf(envP, "Could not allocate memory for registry");
else {
registryP->introspectionEnabled = true;
registryP->defaultMethodFunction = NULL;
registryP->preinvokeFunction = NULL;
registryP->shutdownServerFn = NULL;
registryP->dialect = xmlrpc_dialect_i8;
xmlrpc_methodListCreate(envP, &registryP->methodListP);
if (!envP->fault_occurred)
xmlrpc_installSystemMethods(envP, registryP);
if (envP->fault_occurred)
free(registryP);
}
return registryP;
}
void
xmlrpc_registry_free(xmlrpc_registry * const registryP) {
XMLRPC_ASSERT_PTR_OK(registryP);
xmlrpc_methodListDestroy(registryP->methodListP);
free(registryP);
}
static void
registryAddMethod(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const methodName,
xmlrpc_method1 method1,
xmlrpc_method2 method2,
const char * const signatureString,
const char * const help,
void * const userData) {
const char * const helpString =
help ? help : "No help is available for this method.";
xmlrpc_methodInfo * methodP;
XMLRPC_ASSERT_ENV_OK(envP);
XMLRPC_ASSERT_PTR_OK(registryP);
XMLRPC_ASSERT_PTR_OK(methodName);
XMLRPC_ASSERT(method1 != NULL || method2 != NULL);
xmlrpc_methodCreate(envP, method1, method2, userData,
signatureString, helpString, &methodP);
if (!envP->fault_occurred) {
xmlrpc_methodListAdd(envP, registryP->methodListP, methodName,
methodP);
if (envP->fault_occurred)
xmlrpc_methodDestroy(methodP);
}
}
void
xmlrpc_registry_add_method_w_doc(
xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const host ATTR_UNUSED,
const char * const methodName,
xmlrpc_method1 const method,
void * const serverInfo,
const char * const signatureString,
const char * const help) {
XMLRPC_ASSERT(host == NULL);
registryAddMethod(envP, registryP, methodName, method, NULL,
signatureString, help, serverInfo);
}
void
xmlrpc_registry_add_method(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const host,
const char * const methodName,
xmlrpc_method1 const method,
void * const serverInfoP) {
xmlrpc_registry_add_method_w_doc(
envP, registryP, host, methodName,
method, serverInfoP, "?", "No help is available for this method.");
}
void
xmlrpc_registry_add_method2(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const methodName,
xmlrpc_method2 method,
const char * const signatureString,
const char * const help,
void * const serverInfo) {
registryAddMethod(envP, registryP, methodName, NULL, method,
signatureString, help, serverInfo);
}
void
xmlrpc_registry_set_default_method(
xmlrpc_env * const envP ATTR_UNUSED,
xmlrpc_registry * const registryP ATTR_UNUSED,
xmlrpc_default_method const function,
void * const userData) {
XMLRPC_ASSERT_ENV_OK(envP);
XMLRPC_ASSERT_PTR_OK(registryP);
XMLRPC_ASSERT_PTR_OK(function);
/* Note: this may be the first default method, or it may be a replacement
of the current one.
*/
registryP->defaultMethodFunction = function;
registryP->defaultMethodUserData = userData;
}
void
xmlrpc_registry_set_preinvoke_method(
xmlrpc_env * const envP ATTR_UNUSED,
xmlrpc_registry * const registryP ATTR_UNUSED,
xmlrpc_preinvoke_method const function,
void * const userData) {
XMLRPC_ASSERT_ENV_OK(envP);
XMLRPC_ASSERT_PTR_OK(registryP);
XMLRPC_ASSERT_PTR_OK(function);
registryP->preinvokeFunction = function;
registryP->preinvokeUserData = userData;
}
void
xmlrpc_registry_set_shutdown(xmlrpc_registry * const registryP,
xmlrpc_server_shutdown_fn * const shutdownFn,
void * const context) {
XMLRPC_ASSERT_PTR_OK(registryP);
XMLRPC_ASSERT_PTR_OK(shutdownFn);
registryP->shutdownServerFn = shutdownFn;
registryP->shutdownContext = context;
}
void
xmlrpc_registry_set_dialect(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
xmlrpc_dialect const dialect) {
if (dialect != xmlrpc_dialect_i8 &&
dialect != xmlrpc_dialect_apache)
xmlrpc_faultf(envP, "Invalid dialect argument -- not of type "
"xmlrpc_dialect. Numerical value is %u", dialect);
else
registryP->dialect = dialect;
}
static void
callNamedMethod(xmlrpc_env * const envP,
xmlrpc_methodInfo * const methodP,
xmlrpc_value * const paramArrayP,
void * const callInfoP,
xmlrpc_value ** const resultPP) {
if (methodP->methodFnType2)
*resultPP =
methodP->methodFnType2(envP, paramArrayP,
methodP->userData, callInfoP);
else {
assert(methodP->methodFnType1);
*resultPP =
methodP->methodFnType1(envP, paramArrayP, methodP->userData);
}
}
void
xmlrpc_dispatchCall(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const methodName,
xmlrpc_value * const paramArrayP,
void * const callInfoP,
xmlrpc_value ** const resultPP) {
if (registryP->preinvokeFunction)
registryP->preinvokeFunction(envP, methodName, paramArrayP,
registryP->preinvokeUserData);
if (!envP->fault_occurred) {
xmlrpc_methodInfo * methodP;
xmlrpc_methodListLookupByName(registryP->methodListP, methodName,
&methodP);
if (methodP)
callNamedMethod(envP, methodP, paramArrayP, callInfoP, resultPP);
else {
if (registryP->defaultMethodFunction)
*resultPP = registryP->defaultMethodFunction(
envP, callInfoP, methodName, paramArrayP,
registryP->defaultMethodUserData);
else {
/* No matching method, and no default. */
xmlrpc_env_set_fault_formatted(
envP, XMLRPC_NO_SUCH_METHOD_ERROR,
"Method '%s' not defined", methodName);
}
}
}
/* For backward compatibility, for sloppy users: */
if (envP->fault_occurred)
*resultPP = NULL;
}
/*=========================================================================
** xmlrpc_registry_process_call
**=========================================================================
**
*/
static void
serializeFault(xmlrpc_env * const envP,
xmlrpc_env const fault,
xmlrpc_mem_block * const responseXmlP) {
xmlrpc_env env;
xmlrpc_env_init(&env);
xmlrpc_serialize_fault(&env, responseXmlP, &fault);
if (env.fault_occurred)
xmlrpc_faultf(envP,
"Executed XML-RPC method completely and it "
"generated a fault response, but we failed "
"to encode that fault response as XML-RPC "
"so we could send it to the client. %s",
env.fault_string);
xmlrpc_env_clean(&env);
}
void
xmlrpc_registry_process_call2(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const callXml,
size_t const callXmlLen,
void * const callInfo,
xmlrpc_mem_block ** const responseXmlPP) {
xmlrpc_mem_block * responseXmlP;
XMLRPC_ASSERT_ENV_OK(envP);
XMLRPC_ASSERT_PTR_OK(callXml);
xmlrpc_traceXml("XML-RPC CALL", callXml, callXmlLen);
/* Allocate our output buffer.
** If this fails, we need to die in a special fashion. */
responseXmlP = XMLRPC_MEMBLOCK_NEW(char, envP, 0);
if (!envP->fault_occurred) {
const char * methodName;
xmlrpc_value * paramArrayP;
xmlrpc_env fault;
xmlrpc_env parseEnv;
xmlrpc_env_init(&fault);
xmlrpc_env_init(&parseEnv);
xmlrpc_parse_call(&parseEnv, callXml, callXmlLen,
&methodName, &paramArrayP);
if (parseEnv.fault_occurred)
xmlrpc_env_set_fault_formatted(
&fault, XMLRPC_PARSE_ERROR,
"Call XML not a proper XML-RPC call. %s",
parseEnv.fault_string);
else {
xmlrpc_value * resultP;
xmlrpc_dispatchCall(&fault, registryP, methodName, paramArrayP,
callInfo, &resultP);
if (!fault.fault_occurred) {
xmlrpc_serialize_response2(envP, responseXmlP,
resultP, registryP->dialect);
xmlrpc_DECREF(resultP);
}
xmlrpc_strfree(methodName);
xmlrpc_DECREF(paramArrayP);
}
if (!envP->fault_occurred && fault.fault_occurred)
serializeFault(envP, fault, responseXmlP);
xmlrpc_env_clean(&parseEnv);
xmlrpc_env_clean(&fault);
if (envP->fault_occurred)
XMLRPC_MEMBLOCK_FREE(char, responseXmlP);
else {
*responseXmlPP = responseXmlP;
xmlrpc_traceXml("XML-RPC RESPONSE",
XMLRPC_MEMBLOCK_CONTENTS(char, responseXmlP),
XMLRPC_MEMBLOCK_SIZE(char, responseXmlP));
}
}
}
xmlrpc_mem_block *
xmlrpc_registry_process_call(xmlrpc_env * const envP,
xmlrpc_registry * const registryP,
const char * const host ATTR_UNUSED,
const char * const callXml,
size_t const callXmlLen) {
xmlrpc_mem_block * responseXmlP;
xmlrpc_registry_process_call2(envP, registryP, callXml, callXmlLen, NULL,
&responseXmlP);
return responseXmlP;
}
/* Copyright (C) 2001 by First Peer, Inc. All rights reserved.
** Copyright (C) 2001 by Eric Kidd. All rights reserved.
** Copyright (C) 2001 by Luke Howard. All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE. */
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