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mapows.c
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/******************************************************************************
* $Id$
*
* Project: MapServer
* Purpose: OGC Web Services (WMS, WFS) support functions
* Author: Daniel Morissette, DM Solutions Group ([email protected])
*
******************************************************************************
* Copyright (c) 1996-2005 Regents of the University of Minnesota.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of this Software or works derived from this Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "mapserver.h"
#include "maptime.h"
#include "maptemplate.h"
#include "mapows.h"
#if defined(USE_LIBXML2)
#include "maplibxml2.h"
#elif defined(USE_GDAL)
#include "cpl_minixml.h"
#include "cpl_error.h"
#endif
#include "mapowscommon.h"
#include <ctype.h> /* isalnum() */
#include <stdarg.h>
#include <assert.h>
/*
** msOWSInitRequestObj() initializes an owsRequestObj; i.e: sets
** all internal pointers to NULL.
*/
static void msOWSInitRequestObj(owsRequestObj *ows_request)
{
ows_request->numlayers = 0;
ows_request->enabled_layers = NULL;
ows_request->service = NULL;
ows_request->version = NULL;
ows_request->request = NULL;
ows_request->document = NULL;
}
/*
** msOWSClearRequestObj() releases all resources associated with an
** owsRequestObj.
*/
static void msOWSClearRequestObj(owsRequestObj *ows_request)
{
msFree(ows_request->enabled_layers);
msFree(ows_request->service);
msFree(ows_request->version);
msFree(ows_request->request);
if(ows_request->document) {
#if defined(USE_LIBXML2)
xmlFreeDoc(ows_request->document);
xmlCleanupParser();
#elif defined(USE_GDAL)
CPLDestroyXMLNode(ows_request->document);
#endif
}
}
#if defined(USE_LIBXML2) && LIBXML_VERSION < 20900
static int bExternalEntityAsked = FALSE;
static xmlParserInputPtr dummyEntityLoader(const char * URL,
const char * ID,
xmlParserCtxtPtr context )
{
bExternalEntityAsked = TRUE;
return NULL;
}
#endif
/*
** msOWSPreParseRequest() parses a cgiRequestObj either with GET/KVP
** or with POST/XML. Only SERVICE, VERSION (or WMTVER) and REQUEST are
** being determined, all WxS (or SOS) specific parameters are parsed
** within the according handler.
** The results are saved within an owsRequestObj. If the request was
** transmitted with POST/XML, either the document (if compiled with
** libxml2) or the root CPLXMLNode is saved to the ows_request->document
** field.
** Returns MS_SUCCESS upon success, MS_FAILURE if severe errors occurred
** or MS_DONE, if the service could not be determined.
*/
static int msOWSPreParseRequest(cgiRequestObj *request,
owsRequestObj *ows_request)
{
/* decide if KVP or XML */
if (request->type == MS_GET_REQUEST || (request->type == MS_POST_REQUEST
&& request->contenttype && strncmp(request->contenttype, "application/x-www-form-urlencoded", strlen("application/x-www-form-urlencoded")) == 0)) {
int i;
/* parse KVP parameters service, version and request */
for (i = 0; i < request->NumParams; ++i) {
if (ows_request->service == NULL &&
EQUAL(request->ParamNames[i], "SERVICE")) {
ows_request->service = msStrdup(request->ParamValues[i]);
} else if (ows_request->version == NULL &&
(EQUAL(request->ParamNames[i], "VERSION")
|| EQUAL(request->ParamNames[i], "WMTVER"))) { /* for WMS */
ows_request->version = msStrdup(request->ParamValues[i]);
} else if (ows_request->request == NULL &&
EQUAL(request->ParamNames[i], "REQUEST")) {
ows_request->request = msStrdup(request->ParamValues[i]);
}
/* stop if we have all necessary parameters */
if(ows_request->service && ows_request->version && ows_request->request) {
break;
}
}
} else if (request->type == MS_POST_REQUEST) {
#if defined(USE_LIBXML2)
xmlNodePtr root = NULL;
#if LIBXML_VERSION < 20900
xmlExternalEntityLoader oldExternalEntityLoader;
#endif
#elif defined(USE_GDAL)
CPLXMLNode *temp;
#endif
if (!request->postrequest || !strlen(request->postrequest)) {
msSetError(MS_OWSERR, "POST request is empty.",
"msOWSPreParseRequest()");
return MS_FAILURE;
}
#if defined(USE_LIBXML2)
#if LIBXML_VERSION < 20900
oldExternalEntityLoader = xmlGetExternalEntityLoader();
/* to avoid XML External Entity vulnerability with libxml2 < 2.9 */
xmlSetExternalEntityLoader (dummyEntityLoader);
bExternalEntityAsked = FALSE;
#endif
/* parse to DOM-Structure with libxml2 and get the root element */
ows_request->document = xmlParseMemory(request->postrequest,
strlen(request->postrequest));
#if LIBXML_VERSION < 20900
xmlSetExternalEntityLoader (oldExternalEntityLoader);
if( bExternalEntityAsked )
{
msSetError(MS_OWSERR, "XML parsing error: %s",
"msOWSPreParseRequest()", "External entity fetch");
return MS_FAILURE;
}
#endif
if (ows_request->document == NULL
|| (root = xmlDocGetRootElement(ows_request->document)) == NULL) {
xmlErrorPtr error = xmlGetLastError();
msSetError(MS_OWSERR, "XML parsing error: %s",
"msOWSPreParseRequest()", error->message);
return MS_FAILURE;
}
/* Get service, version and request from root */
ows_request->service = (char *) xmlGetProp(root, BAD_CAST "service");
ows_request->version = (char *) xmlGetProp(root, BAD_CAST "version");
ows_request->request = msStrdup((char *) root->name);
#elif defined(USE_GDAL)
/* parse with CPLXML */
ows_request->document = CPLParseXMLString(request->postrequest);
if (ows_request->document == NULL) {
msSetError(MS_OWSERR, "XML parsing error: %s",
"msOWSPreParseRequest()", CPLGetLastErrorMsg());
return MS_FAILURE;
}
/* remove all namespaces */
CPLStripXMLNamespace(ows_request->document, NULL, 1);
for (temp = ows_request->document;
temp != NULL;
temp = temp->psNext) {
if (temp->eType == CXT_Element) {
const char *service, *version;
ows_request->request = msStrdup(temp->pszValue);
if ((service = CPLGetXMLValue(temp, "service", NULL)) != NULL) {
ows_request->service = msStrdup(service);
}
if ((version = CPLGetXMLValue(temp, "version", NULL)) != NULL) {
ows_request->version = msStrdup(version);
}
continue;
}
}
#else
/* could not parse XML since no parser was compiled */
msSetError(MS_OWSERR, "Could not parse the POST XML since MapServer"
"was not compiled with libxml2 or GDAL.",
"msOWSPreParseRequest()");
return MS_FAILURE;
#endif /* defined(USE_LIBXML2) */
} else {
msSetError(MS_OWSERR, "Unknown request method. Use either GET or POST.",
"msOWSPreParseRequest()");
return MS_FAILURE;
}
/* certain WMS requests do not require the service parameter */
/* see: http://trac.osgeo.org/mapserver/ticket/2531 */
if (ows_request->service == NULL
&& ows_request->request != NULL) {
if (EQUAL(ows_request->request, "GetMap")
|| EQUAL(ows_request->request, "GetFeatureInfo")) {
ows_request->service = msStrdup("WMS");
} else { /* service could not be determined */
return MS_DONE;
}
}
return MS_SUCCESS;
}
/*
** msOWSDispatch() is the entry point for any OWS request (WMS, WFS, ...)
** - If this is a valid request then it is processed and MS_SUCCESS is returned
** on success, or MS_FAILURE on failure.
** - If force_ows_mode is true then an exception will be produced if the
** request is not recognized as a valid request.
** - If force_ows_mode is false and this does not appear to be a valid OWS
** request then MS_DONE is returned and MapServer is expected to process
** this as a regular MapServer (traditional CGI) request.
*/
int msOWSDispatch(mapObj *map, cgiRequestObj *request, int ows_mode)
{
int status = MS_DONE, force_ows_mode = 0;
owsRequestObj ows_request;
if (!request) {
return status;
}
force_ows_mode = (ows_mode == OWS || ows_mode == WFS);
msOWSInitRequestObj(&ows_request);
switch(msOWSPreParseRequest(request, &ows_request)) {
case MS_FAILURE: /* a severe error occurred */
return MS_FAILURE;
case MS_DONE:
/* OWS Service could not be determined */
/* continue for now */
status = MS_DONE;
}
if (ows_request.service == NULL) {
#ifdef USE_WFS_SVR
if( msOWSLookupMetadata(&(map->web.metadata), "FO", "cite_wfs2") != NULL ) {
status = msWFSException(map, "service", MS_OWS_ERROR_MISSING_PARAMETER_VALUE, NULL );
}
else
#endif
/* exit if service is not set */
if(force_ows_mode) {
msSetError( MS_MISCERR,
"OWS Common exception: exceptionCode=MissingParameterValue, locator=SERVICE, ExceptionText=SERVICE parameter missing.",
"msOWSDispatch()");
status = MS_FAILURE;
} else {
status = MS_DONE;
}
} else if (EQUAL(ows_request.service, "WMS")) {
#ifdef USE_WMS_SVR
status = msWMSDispatch(map, request, &ows_request, MS_FALSE);
#else
msSetError( MS_WMSERR,
"SERVICE=WMS requested, but WMS support not configured in MapServer.",
"msOWSDispatch()" );
#endif
} else if (EQUAL(ows_request.service, "WFS")) {
#ifdef USE_WFS_SVR
status = msWFSDispatch(map, request, &ows_request, (ows_mode == WFS));
#else
msSetError( MS_WFSERR,
"SERVICE=WFS requested, but WFS support not configured in MapServer.",
"msOWSDispatch()" );
#endif
} else if (EQUAL(ows_request.service, "WCS")) {
#ifdef USE_WCS_SVR
status = msWCSDispatch(map, request, &ows_request);
#else
msSetError( MS_WCSERR,
"SERVICE=WCS requested, but WCS support not configured in MapServer.",
"msOWSDispatch()" );
#endif
} else if (EQUAL(ows_request.service, "SOS")) {
#ifdef USE_SOS_SVR
status = msSOSDispatch(map, request, &ows_request);
#else
msSetError( MS_SOSERR,
"SERVICE=SOS requested, but SOS support not configured in MapServer.",
"msOWSDispatch()" );
#endif
} else if(force_ows_mode) {
msSetError( MS_MISCERR,
"OWS Common exception: exceptionCode=InvalidParameterValue, locator=SERVICE, ExceptionText=SERVICE parameter value invalid.",
"msOWSDispatch()");
status = MS_FAILURE;
}
msOWSClearRequestObj(&ows_request);
return status;
}
/*
** msOWSIpParse()
**
** Parse the IP address or range into a binary array.
** Supports ipv4 and ipv6 addresses
** Ranges can be specified using the CIDR notation (ie: 192.100.100.0/24)
**
** Returns the parsed of the IP (4 or 16).
*/
int msOWSIpParse(const char* ip, unsigned char* ip1, unsigned char* mask)
{
int len = 0, masklen, seps;
if (msCountChars((char*)ip, '.') == 3) {
/* ipv4 */
unsigned char* val = ip1;
len = 1;
masklen = 32;
*val = 0;
while (*ip) {
if (*ip >= '0' && *ip <= '9')
(*val) = 10 * (*val) + (*ip - '0');
else if (*ip == '.') {
++val;
*val = 0;
++len;
}
else if (*ip == '/')
{
masklen = atoi(ip+1);
if (masklen > 32)
masklen = 32;
break;
}
else
break;
++ip;
}
if (len != 4)
return 0;
/* write mask */
if (mask) {
memset(mask, 0, len);
val = mask;
while (masklen) {
if (masklen >= 8) {
*val = 0xff;
masklen -= 8;
}
else {
*val = - ((unsigned char)pow(2, 8 - masklen));
break;
}
++val;
}
}
}
else if ((seps = msCountChars((char*)ip, ':')) > 1 && seps < 8) {
/* ipv6 */
unsigned short* val = (unsigned short*)ip1;
len = 2;
masklen = 128;
*val = 0;
while (*ip) {
if (*ip >= '0' && *ip <= '9')
(*val) = 16 * (*val) + (*ip - '0');
else if (*ip >= 'a' && *ip <= 'f')
(*val) = 16 * (*val) + (*ip - 'a' + 10);
else if (*ip >= 'A' && *ip <= 'F')
(*val) = 16 * (*val) + (*ip - 'A' + 10);
else if (*ip == ':') {
++ip;
++val;
len += 2;
*val = 0;
if (*ip == ':') {
/* insert 0 values */
while (seps <= 7) {
++val;
len += 2;
*val = 0;
++seps;
}
}
else
continue;
}
else if (*ip == '/')
{
masklen = atoi(ip+1);
if (masklen > 128)
masklen = 128;
break;
}
else
break;
++ip;
}
if (len != 16)
return 0;
/* write mask */
if (mask) {
memset(mask, 0, len);
val = (unsigned short*)mask;
while (masklen) {
if (masklen >= 16) {
*val = 0xffff;
masklen -= 16;
}
else {
*val = - ((unsigned short)pow(2, 16 - masklen));
break;
}
++val;
}
}
}
return len;
}
/*
** msOWSIpInList()
**
** Check if an ip is in a space separated list of IP addresses/ranges.
** Supports ipv4 and ipv6 addresses
** Ranges can be specified using the CIDR notation (ie: 192.100.100.0/24)
**
** Returns MS_TRUE if the IP is found.
*/
int msOWSIpInList(const char *ip_list, const char* ip)
{
int i, j, numips, iplen;
unsigned char ip1[16];
unsigned char ip2[16];
unsigned char mask[16];
char** ips;
/* Parse input IP */
iplen = msOWSIpParse(ip, (unsigned char*)&ip1, NULL);
if (iplen != 4 && iplen != 16) /* ipv4 or ipv6 */
return MS_FALSE;
ips = msStringSplit(ip_list, ' ', &numips);
if (ips) {
for (i = 0; i < numips; i++) {
if (msOWSIpParse(ips[i], (unsigned char*)&ip2, (unsigned char*)&mask) == iplen)
{
for (j = 0; j < iplen; j++) {
if ((ip1[j] & mask[j]) != (ip2[j] & mask[j]))
break;
}
if (j == iplen) {
msFreeCharArray(ips, numips);
return MS_TRUE; /* match found */
}
}
}
msFreeCharArray(ips, numips);
}
return MS_FALSE;
}
/*
** msOWSIpDisabled()
**
** Check if an ip is in a list specified in the metadata section.
**
** Returns MS_TRUE if the IP is found.
*/
int msOWSIpInMetadata(const char *ip_list, const char* ip)
{
FILE *stream;
char buffer[MS_BUFFER_LENGTH];
int found = MS_FALSE;
if (strncasecmp(ip_list, "file:", 5) == 0) {
stream = fopen(ip_list + 5, "r");
if(stream) {
found = MS_FALSE;
while(fgets(buffer, MS_BUFFER_LENGTH, stream)) {
if(msOWSIpInList(buffer, ip)) {
found = MS_TRUE;
break;
}
}
fclose(stream);
}
}
else {
if(msOWSIpInList(ip_list, ip))
found = MS_TRUE;
}
return found;
}
/*
** msOWSIpDisabled()
**
** Check if the layers are enabled or disabled by IP list.
**
** 'namespaces' is a string with a letter for each namespace to lookup
** in the order they should be looked up. e.g. "MO" to lookup wms_ and ows_
** If namespaces is NULL then this function just does a regular metadata
** lookup.
**
** Returns the disabled flag.
*/
int msOWSIpDisabled(hashTableObj *metadata, const char *namespaces, const char* ip)
{
const char *ip_list;
int disabled = MS_FALSE;
if (!ip)
return MS_FALSE; /* no endpoint ip */
ip_list = msOWSLookupMetadata(metadata, namespaces, "allowed_ip_list");
if (!ip_list)
ip_list = msOWSLookupMetadata(metadata, "O", "allowed_ip_list");
if (ip_list) {
disabled = MS_TRUE;
if (msOWSIpInMetadata(ip_list, ip))
disabled = MS_FALSE;
}
ip_list = msOWSLookupMetadata(metadata, namespaces, "denied_ip_list");
if (!ip_list)
ip_list = msOWSLookupMetadata(metadata, "O", "denied_ip_list");
if (ip_list && msOWSIpInMetadata(ip_list, ip))
disabled = MS_TRUE;
return disabled;
}
/*
** msOWSRequestIsEnabled()
**
** Check if a layer is visible for a specific OWS request.
**
** 'namespaces' is a string with a letter for each namespace to lookup in
** the order they should be looked up. e.g. "MO" to lookup wms_ and ows_ If
** namespaces is NULL then this function just does a regular metadata
** lookup. If check_all_layers is set to MS_TRUE, the function will check
** all layers to see if the request is enable. (returns as soon as one is found) */
int msOWSRequestIsEnabled(mapObj *map, layerObj *layer,
const char *namespaces, const char *request, int check_all_layers)
{
int disabled = MS_FALSE; /* explicitly disabled flag */
const char *enable_request;
const char *remote_ip;
if (request == NULL)
return MS_FALSE;
remote_ip = getenv("REMOTE_ADDR");
/* First, we check in the layer metadata */
if (layer && check_all_layers == MS_FALSE) {
enable_request = msOWSLookupMetadata(&layer->metadata, namespaces, "enable_request");
if (msOWSParseRequestMetadata(enable_request, request, &disabled))
return MS_TRUE;
if (disabled) return MS_FALSE;
enable_request = msOWSLookupMetadata(&layer->metadata, "O", "enable_request");
if (msOWSParseRequestMetadata(enable_request, request, &disabled))
return MS_TRUE;
if (disabled) return MS_FALSE;
if (msOWSIpDisabled(&layer->metadata, namespaces, remote_ip))
return MS_FALSE;
}
if (map && (check_all_layers == MS_FALSE || map->numlayers == 0)) {
/* then we check in the map metadata */
enable_request = msOWSLookupMetadata(&map->web.metadata, namespaces, "enable_request");
if (msOWSParseRequestMetadata(enable_request, request, &disabled))
return MS_TRUE;
if (disabled) return MS_FALSE;
enable_request = msOWSLookupMetadata(&map->web.metadata, "O", "enable_request");
if (msOWSParseRequestMetadata(enable_request, request, &disabled))
return MS_TRUE;
if (disabled) return MS_FALSE;
if (msOWSIpDisabled(&map->web.metadata, namespaces, remote_ip))
return MS_FALSE;
}
if (map && check_all_layers == MS_TRUE) {
int i, globally_enabled = MS_FALSE;
enable_request = msOWSLookupMetadata(&map->web.metadata, namespaces, "enable_request");
globally_enabled = msOWSParseRequestMetadata(enable_request, request, &disabled);
if (!globally_enabled && !disabled) {
enable_request = msOWSLookupMetadata(&map->web.metadata, "O", "enable_request");
globally_enabled = msOWSParseRequestMetadata(enable_request, request, &disabled);
}
if (globally_enabled && msOWSIpDisabled(&map->web.metadata, namespaces, remote_ip))
globally_enabled = MS_FALSE;
/* Check all layers */
for(i=0; i<map->numlayers; i++) {
int result = MS_FALSE;
layerObj *lp;
lp = (GET_LAYER(map, i));
enable_request = msOWSLookupMetadata(&lp->metadata, namespaces, "enable_request");
result = msOWSParseRequestMetadata(enable_request, request, &disabled);
if (!result && disabled) continue; /* if the request has been explicitly set to disabled, continue */
if (!result && !disabled) { /* if the request has not been found in the wms metadata, */
/* check the ows namespace */
enable_request = msOWSLookupMetadata(&lp->metadata, "O", "enable_request");
result = msOWSParseRequestMetadata(enable_request, request, &disabled);
if (!result && disabled) continue;
}
if (msOWSIpDisabled(&lp->metadata, namespaces, remote_ip))
continue;
if (result || (!disabled && globally_enabled))
return MS_TRUE;
}
if (!disabled && globally_enabled)
return MS_TRUE;
}
return MS_FALSE;
}
/*
** msOWSRequestLayersEnabled()
**
** Check if the layers are visible for a specific OWS request.
**
** 'namespaces' is a string with a letter for each namespace to lookup
** in the order they should be looked up. e.g. "MO" to lookup wms_ and ows_
** If namespaces is NULL then this function just does a regular metadata
** lookup.
**
** Generates an array of the layer ids enabled.
*/
void msOWSRequestLayersEnabled(mapObj *map, const char *namespaces,
const char *request, owsRequestObj *ows_request)
{
int disabled = MS_FALSE; /* explicitly disabled flag */
int globally_enabled = MS_FALSE;
const char *enable_request;
const char *remote_ip;
if (ows_request->numlayers > 0)
msFree(ows_request->enabled_layers);
ows_request->numlayers = 0;
ows_request->enabled_layers = NULL;
if (request == NULL || (map == NULL) || (map->numlayers <= 0))
return;
remote_ip = getenv("REMOTE_ADDR");
enable_request = msOWSLookupMetadata(&map->web.metadata, namespaces, "enable_request");
globally_enabled = msOWSParseRequestMetadata(enable_request, request, &disabled);
if (!globally_enabled && !disabled) {
enable_request = msOWSLookupMetadata(&map->web.metadata, "O", "enable_request");
globally_enabled = msOWSParseRequestMetadata(enable_request, request, &disabled);
}
if (globally_enabled && msOWSIpDisabled(&map->web.metadata, namespaces, remote_ip))
globally_enabled = MS_FALSE;
if (map->numlayers) {
int i, layers_size = map->numlayers; /* for most of cases, this will be relatively small */
ows_request->enabled_layers = (int*)msSmallMalloc(sizeof(int)*layers_size);
for(i=0; i<map->numlayers; i++) {
int result = MS_FALSE;
layerObj *lp;
lp = (GET_LAYER(map, i));
enable_request = msOWSLookupMetadata(&lp->metadata, namespaces, "enable_request");
result = msOWSParseRequestMetadata(enable_request, request, &disabled);
if (!result && disabled) continue; /* if the request has been explicitly set to disabled, continue */
if (!result && !disabled) { /* if the request has not been found in the wms metadata, */
/* check the ows namespace */
enable_request = msOWSLookupMetadata(&lp->metadata, "O", "enable_request");
result = msOWSParseRequestMetadata(enable_request, request, &disabled);
if (!result && disabled) continue;
}
if (msOWSIpDisabled(&lp->metadata, namespaces, remote_ip))
continue;
if (result || (!disabled && globally_enabled)) {
ows_request->enabled_layers[ows_request->numlayers] = lp->index;
ows_request->numlayers++;
}
}
if (ows_request->numlayers == 0) {
msFree(ows_request->enabled_layers);
ows_request->enabled_layers = NULL;
}
}
}
/* msOWSParseRequestMetadata
*
* This function parse a enable_request metadata string and check if the
* given request is present and enabled.
*/
int msOWSParseRequestMetadata(const char *metadata, const char *request, int *disabled)
{
char requestBuffer[32];
int wordFlag = MS_FALSE;
int disableFlag = MS_FALSE;
int allFlag = MS_FALSE;
char *bufferPtr, *ptr = NULL;
int i;
size_t len = 0;
*disabled = MS_FALSE;
if (metadata == NULL)
return MS_FALSE;
ptr = (char*)metadata;
len = strlen(ptr);
requestBuffer[0] = '\0';
bufferPtr = requestBuffer;
for (i=0; i<=len; ++i,++ptr) {
if (!wordFlag && isspace(*ptr))
continue;
wordFlag = MS_TRUE;
if (*ptr == '!') {
disableFlag = MS_TRUE;
continue;
} else if ( (*ptr == ' ') || (*ptr != '\0' && ptr[1] == '\0')) { /* end of word */
if (ptr[1] == '\0' && *ptr != ' ') {
*bufferPtr = *ptr;
++bufferPtr;
}
*bufferPtr = '\0';
if (strcasecmp(request, requestBuffer) == 0) {
*disabled = MS_TRUE; /* explicitly found, will stop the process in msOWSRequestIsEnabled() */
return (disableFlag ? MS_FALSE:MS_TRUE);
} else {
if (strcmp("*", requestBuffer) == 0) { /* check if we read the all flag */
if (disableFlag)
*disabled = MS_TRUE;
allFlag = disableFlag ? MS_FALSE:MS_TRUE;
}
/* reset flags */
wordFlag = MS_FALSE;
disableFlag = MS_FALSE;
bufferPtr = requestBuffer;
}
} else {
*bufferPtr = *ptr;
++bufferPtr;
}
}
return allFlag;
}
/*
** msOWSLookupMetadata()
**
** Attempts to lookup a given metadata name in multiple OWS namespaces.
**
** 'namespaces' is a string with a letter for each namespace to lookup
** in the order they should be looked up. e.g. "MO" to lookup wms_ and ows_
** If namespaces is NULL then this function just does a regular metadata
** lookup.
*/
const char *msOWSLookupMetadata(hashTableObj *metadata,
const char *namespaces, const char *name)
{
const char *value = NULL;
if (namespaces == NULL) {
value = msLookupHashTable(metadata, (char*)name);
} else {
char buf[100] = "ows_";
strlcpy(buf+4, name, 96);
while (value == NULL && *namespaces != '\0') {
switch (*namespaces) {
case 'O': /* ows_... */
buf[0] = 'o';
buf[1] = 'w';
buf[2] = 's';
break;
case 'M': /* wms_... */
buf[0] = 'w';
buf[1] = 'm';
buf[2] = 's';
break;
case 'F': /* wfs_... */
buf[0] = 'w';
buf[1] = 'f';
buf[2] = 's';
break;
case 'C': /* wcs_... */
buf[0] = 'w';
buf[1] = 'c';
buf[2] = 's';
break;
case 'G': /* gml_... */
buf[0] = 'g';
buf[1] = 'm';
buf[2] = 'l';
break;
case 'S': /* sos_... */
buf[0] = 's';
buf[1] = 'o';
buf[2] = 's';
break;
default:
/* We should never get here unless an invalid code (typo) is */
/* present in the code, but since this happened before... */
msSetError(MS_WMSERR,
"Unsupported metadata namespace code (%c).",
"msOWSLookupMetadata()", *namespaces );
assert(MS_FALSE);
return NULL;
}
value = msLookupHashTable(metadata, buf);
namespaces++;
}
}
return value;
}
/*
** msOWSLookupMetadataWithLanguage()
**
** Attempts to lookup a given metadata name in multiple OWS namespaces
** for a specific language.
*/
const char *msOWSLookupMetadataWithLanguage(hashTableObj *metadata,
const char *namespaces, const char *name, const char* validated_language)
{
const char *value = NULL;
if ( name && validated_language ) {
size_t bufferSize = strlen(name)+strlen(validated_language)+2;
char *name2 = (char *) msSmallMalloc( bufferSize );
snprintf(name2, bufferSize, "%s.%s", name, validated_language);
value = msOWSLookupMetadata(metadata, namespaces, name2);
free(name2);
}
if ( name && !value ) {
value = msOWSLookupMetadata(metadata, namespaces, name);
}
return value;
}
/*
** msOWSLookupMetadata2()
**
** Attempts to lookup a given metadata name in multiple hashTables, and
** in multiple OWS namespaces within each. First searches the primary
** table and if no result is found, attempts the search using the
** secondary (fallback) table.
**
** 'namespaces' is a string with a letter for each namespace to lookup
** in the order they should be looked up. e.g. "MO" to lookup wms_ and ows_
** If namespaces is NULL then this function just does a regular metadata
** lookup.
*/
const char *msOWSLookupMetadata2(hashTableObj *pri,
hashTableObj *sec,
const char *namespaces,
const char *name)
{
const char *result;
if ((result = msOWSLookupMetadata(pri, namespaces, name)) == NULL) {
/* Try the secondary table */
result = msOWSLookupMetadata(sec, namespaces, name);
}
return result;
}
/* msOWSParseVersionString()
**
** Parse a version string in the format "a.b.c" or "a.b" and return an
** integer in the format 0x0a0b0c suitable for regular integer comparisons.
**
** Returns one of OWS_VERSION_NOTSET or OWS_VERSION_BADFORMAT if version
** could not be parsed.
*/
int msOWSParseVersionString(const char *pszVersion)
{
char **digits = NULL;
int numDigits = 0;
if (pszVersion) {
int nVersion = 0;
digits = msStringSplit(pszVersion, '.', &numDigits);
if (digits == NULL || numDigits < 2 || numDigits > 3) {
msSetError(MS_OWSERR,
"Invalid version (%s). Version must be in the "
"format 'x.y' or 'x.y.z'",
"msOWSParseVersionString()", pszVersion);
if (digits)
msFreeCharArray(digits, numDigits);
return OWS_VERSION_BADFORMAT;
}
nVersion = atoi(digits[0])*0x010000;
nVersion += atoi(digits[1])*0x0100;
if (numDigits > 2)
nVersion += atoi(digits[2]);
msFreeCharArray(digits, numDigits);
return nVersion;
}
return OWS_VERSION_NOTSET;
}
/* msOWSGetVersionString()
**
** Returns a OWS version string in the format a.b.c from the integer
** version value passed as argument (0x0a0b0c)
**
** Fills in the pszBuffer and returns a reference to it. Recommended buffer
** size is OWS_VERSION_MAXLEN chars.
*/
const char *msOWSGetVersionString(int nVersion, char *pszBuffer)
{
if (pszBuffer)
snprintf(pszBuffer, OWS_VERSION_MAXLEN-1, "%d.%d.%d",
(nVersion/0x10000)%0x100, (nVersion/0x100)%0x100, nVersion%0x100);
return pszBuffer;
}
#if defined(USE_WMS_SVR) || defined (USE_WFS_SVR) || defined (USE_WCS_SVR) || defined(USE_SOS_SVR) || defined(USE_WMS_LYR) || defined(USE_WFS_LYR)
#if !defined(USE_PROJ)
#error "PROJ.4 is required for WMS, WFS, WCS and SOS Server Support."
#endif