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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <httpfilt.h>
#include <axis2_const.h>
#include <axis2_defines.h>
#include <axutil_env.h>
#include <axutil_stream.h>
#include "..\\axis2_iis_constants.h"
#define REGISTRY_LOC "Software\\Apache Axis2c\\IIS ISAPI Redirector"
#define AXIS2_IIS_AXIS2_LOC "axis2_location"
static char *axis2_loc = "/axis2";
static axis2_char_t redirect_word[INTERNET_MAX_URL_LENGTH] = "/axis2/mod_axis2_IIS.dll\?";
/*
* Search a given uri to find weather it matches a uri for the axis2
* The uri format for axis2 is of the form
* scheme://server:port/axis2/other_parts
* This function search a give uri for the /axis2/. If a match
* is found it will replace the /axis2 part of the url with /axis2/mod_iis.dll?
*/
axis2_bool_t AXIS2_CALL
get_extension_url(
char url[],
char ret_url[]);
/*
* This function is called by the IIS server at the server
* initialization. So this is the ideal plcae for initializing
* axis2c.
*/
BOOL WINAPI
GetFilterVersion(
PHTTP_FILTER_VERSION pVer)
{
DWORD type = 0, size = 0;
LONG lrc = 0;
char tmpbuf[INTERNET_MAX_URL_LENGTH];
HKEY hkey;
ULONG http_filter_revision = HTTP_FILTER_REVISION;
pVer->dwFilterVersion = pVer->dwServerFilterVersion;
if(pVer->dwFilterVersion > http_filter_revision)
{
pVer->dwFilterVersion = http_filter_revision;
}
/*
Receive notifictions when
1. Server preprocessed the headers.
2. Log
3. All the request coming in secure and none secure ports.
*/
pVer->dwFlags = (SF_NOTIFY_ORDER_HIGH | SF_NOTIFY_PREPROC_HEADERS | SF_NOTIFY_SECURE_PORT
| SF_NOTIFY_NONSECURE_PORT | SF_NOTIFY_AUTH_COMPLETE);
/* Give a short discription about the module.*/
strcpy(pVer->lpszFilterDesc, "axis2c filter");
/* Get the axis2 location from the registry configuration */
lrc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, REGISTRY_LOC, (DWORD)0, KEY_READ, &hkey);
if(ERROR_SUCCESS != lrc)
{
return FALSE;
}
size = INTERNET_MAX_URL_LENGTH;
lrc = RegQueryValueEx(hkey, AXIS2_IIS_AXIS2_LOC, (LPDWORD)0, &type, (LPBYTE)tmpbuf, &size);
if((ERROR_SUCCESS == lrc) && (type == REG_SZ))
{
tmpbuf[size] = '\0';
axis2_loc = _strdup(tmpbuf);
}
RegCloseKey(hkey);
return TRUE;
}
/*
When a notification happens this function is called by the IIS.
*/
DWORD WINAPI
HttpFilterProc(
PHTTP_FILTER_CONTEXT pfc,
DWORD notificationType,
LPVOID pvNotification)
{
DWORD bufferLength = INTERNET_MAX_URL_LENGTH;
char url[INTERNET_MAX_URL_LENGTH];
char modified_url[INTERNET_MAX_URL_LENGTH];
if(notificationType == SF_NOTIFY_PREPROC_HEADERS)
{
pfc->GetServerVariable(pfc, "HTTP_URL", url, &bufferLength);
if(get_extension_url(url, modified_url))
{
((PHTTP_FILTER_PREPROC_HEADERS)pvNotification)->SetHeader(pfc, "url", modified_url);
return SF_STATUS_REQ_HANDLED_NOTIFICATION;
}
}
return SF_STATUS_REQ_NEXT_NOTIFICATION;
}
axis2_bool_t AXIS2_CALL
get_extension_url(
char url[],
char ret_url[])
{
axis2_bool_t is_for_us = AXIS2_FALSE;
int i = 0;
/* Should contain "/axis2/"*/
ret_url[0] = '\0';
if(strlen(url) >= strlen(axis2_loc))
{
is_for_us = AXIS2_TRUE;
while(axis2_loc[i] != '\0')
{
if(axis2_loc[i] != (url)[i])
{
is_for_us = AXIS2_FALSE;
break;
}
i++;
}
if(url[i] != '/' && url[i] != '\0')
{
is_for_us = AXIS2_FALSE;
}
}
if(is_for_us)
{
strcpy(ret_url, redirect_word);
strcat(ret_url, &url[i]);
}
return is_for_us;
}
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