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/******************************************************************
* $Id: soap-server.c,v 1.11 2005/07/30 12:43:12 snowdrop Exp $
*
* CSOAP Project: A SOAP client/server library in C
* Copyright (C) 2003 Ferhat Ayaz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Email: ayaz@jprogrammer.net
******************************************************************/
#include <libcsoap/soap-server.h>
#include <nanohttp/nanohttp-server.h>
#include <string.h>
typedef struct _SoapRouterNode
{
char *context;
SoapRouter *router;
struct _SoapRouterNode *next;
}SoapRouterNode;
SoapRouterNode *head = NULL;
SoapRouterNode *tail = NULL;
static
SoapRouterNode *router_node_new(SoapRouter *router,
const char *context,
SoapRouterNode *next);
static
SoapRouter *router_find(const char *context);
static
void _soap_server_send_ctx(httpd_conn_t* conn, SoapCtx *ctxres);
/*---------------------------------*/
void soap_server_entry(httpd_conn_t *conn, hrequest_t *req);
static
void _soap_server_send_env(http_output_stream_t *out, SoapEnv* env);
static
void _soap_server_send_fault(httpd_conn_t *conn, hpair_t *header,
const char* errmsg);
/*---------------------------------*/
herror_t soap_server_init_args(int argc, char *argv[])
{
return httpd_init(argc, argv);
}
int soap_server_register_router(SoapRouter *router, const char* context)
{
if (!httpd_register(context, soap_server_entry)) {
return 0;
}
if (tail == NULL) {
head = tail = router_node_new(router, context, NULL);
} else {
tail->next = router_node_new(router, context, NULL);
tail = tail->next;
}
return 1;
}
herror_t soap_server_run()
{
return httpd_run();
}
void soap_server_destroy()
{
SoapRouterNode *node = head;
SoapRouterNode *tmp;
while (node != NULL) {
tmp = node->next;
log_verbose2("soap_router_free(%p)", node->router);
soap_router_free(node->router);
free(node->context);
free(node);
node = tmp;
}
httpd_destroy();
}
void soap_server_entry(httpd_conn_t *conn, hrequest_t *req)
{
hpair_t *header = NULL;
char buffer[1054];
char urn[150];
char method[150];
SoapCtx *ctx, *ctxres;
SoapRouter *router;
SoapService *service;
SoapEnv *env;
herror_t err;
if (req->method != HTTP_REQUEST_POST) {
httpd_send_header(conn, 200, "OK");
http_output_stream_write_string(conn->out, "<html><head></head><body>");
http_output_stream_write_string(conn->out, "<h1>Sorry! </h1><hr>");
http_output_stream_write_string(conn->out, "I only speak with 'POST' method");
http_output_stream_write_string(conn->out, "</body></html>");
return;
}
header = hpairnode_new(HEADER_CONTENT_TYPE, "text/xml", NULL);
err = soap_env_new_from_stream(req->in, &env);
if (err != H_OK)
{
_soap_server_send_fault(conn, header, herror_message(err));
if (env) soap_env_free(env);
herror_release(err);
} else if (env == NULL) {
_soap_server_send_fault(conn, header,"Can not receive POST data!");
} else {
ctx = soap_ctx_new(env);
soap_ctx_add_files(ctx, req->attachments);
if (ctx->env == NULL) {
_soap_server_send_fault(conn, header,"Can not parse POST data!");
} else {
/*soap_xml_doc_print(env->root->doc);*/
router = router_find(req->path);
if ( router == NULL) {
_soap_server_send_fault(conn, header, "Can not find router!");
} else {
if (!soap_env_find_urn(ctx->env, urn)) {
_soap_server_send_fault(conn, header, "No URN found!");
} else {
log_verbose2("urn: '%s'", urn);
if (!soap_env_find_methodname(ctx->env, method)) {
_soap_server_send_fault(conn, header, "No method found!");
}else {
log_verbose2("method: '%s'", method);
service = soap_router_find_service(router, urn, method);
if (service == NULL) {
sprintf(buffer, "URN '%s' not found", urn);
_soap_server_send_fault(conn, header, buffer);
} else {
log_verbose2("func: %p", service->func);
ctxres = soap_ctx_new(NULL);
/* ===================================== */
/* CALL SERVICE FUNCTION */
/* ===================================== */
err = service->func(ctx, ctxres);
if (err != H_OK) {
sprintf(buffer, "Service returned following error message: '%s'",
herror_message(err));
herror_release(err);
_soap_server_send_fault(conn, header, buffer);
} else if (ctxres->env == NULL) {
sprintf(buffer, "Service '%s' returned no envelope", urn);
_soap_server_send_fault(conn, header, buffer);
} else {
/* httpd_send_header(conn, 200, "OK");
_soap_server_send_env(conn->out, ctxres->env);
*/
_soap_server_send_ctx(conn, ctxres);
}
/* free envctx */
soap_ctx_free(ctxres);
}
}
}
}
}
soap_ctx_free(ctx);
}
hpairnode_free (header);
}
static
void _soap_server_send_ctx(httpd_conn_t* conn, SoapCtx *ctx)
{
xmlBufferPtr buffer;
static int counter = 1;
char strbuffer[150];
part_t *part;
if (ctx->env == NULL || ctx->env->root == NULL) return;
buffer = xmlBufferCreate();
/* xmlIndentTreeOutput = 1;*/
xmlThrDefIndentTreeOutput(1);
/* xmlKeepBlanksDefault(0);*/
xmlNodeDump(buffer, ctx->env->root->doc, ctx->env->root, 1 ,1);
if (ctx->attachments)
{
sprintf(strbuffer, "000128590350940924234%d", counter++);
httpd_mime_send_header(conn, strbuffer, "", "text/xml", 200, "OK");
httpd_mime_next(conn, strbuffer, "text/xml", "binary");
http_output_stream_write_string(conn->out, (const char*)xmlBufferContent(buffer));
part = ctx->attachments->parts;
while (part)
{
httpd_mime_send_file(conn, part->id, part->content_type, part->transfer_encoding, part->filename);
part = part->next;
}
httpd_mime_end(conn);
}
else
{
httpd_send_header(conn, 200, "OK");
http_output_stream_write_string(conn->out, (const char*)xmlBufferContent(buffer));
}
xmlBufferFree(buffer);
}
static
void _soap_server_send_env(http_output_stream_t *out, SoapEnv* env)
{
xmlBufferPtr buffer;
if (env == NULL || env->root == NULL) return;
buffer = xmlBufferCreate();
xmlNodeDump(buffer, env->root->doc, env->root, 1 ,1);
http_output_stream_write_string(out, (const char*)xmlBufferContent(buffer));
xmlBufferFree(buffer);
}
static
void _soap_server_send_fault(httpd_conn_t *conn, hpair_t *header,
const char* errmsg)
{
SoapEnv *envres;
herror_t err;
char buffer[45];
httpd_set_headers(conn, header);
err = httpd_send_header(conn, 500, "FAILED");
if (err != H_OK) {
/* WARNING: unhandled exception !*/
log_error4("%s():%s [%d]", herror_func(err), herror_message(err), herror_code(err));
return;
}
err = soap_env_new_with_fault(Fault_Server,
errmsg?errmsg:"General error",
"cSOAP_Server", NULL, &envres);
if (err != H_OK) {
log_error1(herror_message(err));
http_output_stream_write_string(conn->out, "<html><head></head><body>");
http_output_stream_write_string(conn->out, "<h1>Error</h1><hr>");
http_output_stream_write_string(conn->out, "Error while sending fault object:<br>Message: ");
http_output_stream_write_string(conn->out, herror_message(err));
http_output_stream_write_string(conn->out, "<br>Function: ");
http_output_stream_write_string(conn->out, herror_func(err));
http_output_stream_write_string(conn->out, "<br>Error code: ");
sprintf(buffer, "%d", herror_code(err));
http_output_stream_write_string(conn->out, buffer);
http_output_stream_write_string(conn->out, "</body></html>");
return;
herror_release(err);
} else {
_soap_server_send_env(conn->out, envres);
soap_env_free(envres);
}
}
static
SoapRouterNode *router_node_new(SoapRouter *router,
const char *context,
SoapRouterNode *next)
{
SoapRouterNode *node;
const char *noname = "/lost_found";
node = (SoapRouterNode*)malloc(sizeof(SoapRouterNode));
if (context) {
node->context = (char*)malloc(strlen(context)+1);
strcpy(node->context, context);
} else {
log_warn2("context is null. Using '%s'", noname);
node->context = (char*)malloc(strlen(noname)+1);
strcpy(node->context, noname);
}
node->router = router;
node->next = next;
return node;
}
static
SoapRouter *router_find(const char* context)
{
SoapRouterNode *node = head;
while (node != NULL) {
if (!strcmp(node->context, context))
return node->router;
node = node->next;
}
return NULL;
}
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