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mapwms.c
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mapwms.c
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/******************************************************************************
* $Id$
*
* Project: MapServer
* Purpose: OpenGIS Web Mapping Service support implementation.
* Author: Steve Lime and the MapServer team.
*
******************************************************************************
* 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.
*****************************************************************************/
#define _GNU_SOURCE
#include "mapserver.h"
#include "maperror.h"
#include "mapthread.h"
#include "mapgml.h"
#include <ctype.h>
#include "maptemplate.h"
#include "mapows.h"
#include "mapogcsld.h"
#include "mapogcfilter.h"
#include "mapowscommon.h"
#include "maptime.h"
#include "mapproject.h"
#include <stdarg.h>
#include <time.h>
#include <string.h>
#ifdef WIN32
#include <process.h>
#endif
/* ==================================================================
* WMS Server stuff.
* ================================================================== */
#ifdef USE_WMS_SVR
#ifdef USE_OGR
int ogrEnabled = 1;
#else
int ogrEnabled = 0;
#endif /* USE_OGR */
/*
** msWMSException()
**
** Report current MapServer error in requested format.
*/
int msWMSException(mapObj *map, int nVersion, const char *exception_code,
char *wms_exception_format)
{
char *schemalocation = NULL;
/* Default to WMS 1.3.0 exceptions if version not set yet */
if (nVersion <= 0)
nVersion = OWS_1_3_0;
/* get scheam location */
schemalocation = msEncodeHTMLEntities( msOWSGetSchemasLocation(map) );
/* Establish default exception format depending on VERSION */
if (wms_exception_format == NULL) {
if (nVersion <= OWS_1_0_0)
wms_exception_format = "INIMAGE"; /* WMS 1.0.0 */
else if (nVersion <= OWS_1_0_7)
wms_exception_format = "SE_XML"; /* WMS 1.0.1 to 1.0.7 */
else if (nVersion <= OWS_1_1_1)
wms_exception_format = "application/vnd.ogc.se_xml"; /* WMS 1.1.0 and later */
else
wms_exception_format = "text/xml";
}
if (strcasecmp(wms_exception_format, "INIMAGE") == 0 ||
strcasecmp(wms_exception_format, "BLANK") == 0 ||
strcasecmp(wms_exception_format, "application/vnd.ogc.se_inimage")== 0 ||
strcasecmp(wms_exception_format, "application/vnd.ogc.se_blank") == 0) {
int blank = 0;
if (strcasecmp(wms_exception_format, "BLANK") == 0 ||
strcasecmp(wms_exception_format, "application/vnd.ogc.se_blank") == 0) {
blank = 1;
}
msWriteErrorImage(map, NULL, blank);
} else if (strcasecmp(wms_exception_format, "WMS_XML") == 0) { /* Only in V1.0.0 */
msIO_setHeader("Content-Type","text/xml; charset=UTF-8");
msIO_sendHeaders();
msIO_printf("<WMTException version=\"1.0.0\">\n");
msWriteErrorXML(stdout);
msIO_printf("</WMTException>\n");
} else /* XML error, the default: SE_XML (1.0.1 to 1.0.7) */
/* or application/vnd.ogc.se_xml (1.1.0 and later) */
{
if (nVersion <= OWS_1_0_7) {
/* In V1.0.1 to 1.0.7, the MIME type was text/xml */
msIO_setHeader("Content-Type","text/xml; charset=UTF-8");
msIO_sendHeaders();
msIO_printf("<?xml version='1.0' encoding=\"UTF-8\" standalone=\"no\" ?>\n");
msIO_printf("<!DOCTYPE ServiceExceptionReport SYSTEM \"http://www.digitalearth.gov/wmt/xml/exception_1_0_1.dtd\">\n");
msIO_printf("<ServiceExceptionReport version=\"1.0.1\">\n");
} else if (nVersion <= OWS_1_1_0) {
/* In V1.1.0 and later, we have OGC-specific MIME types */
/* we cannot return anything else than application/vnd.ogc.se_xml here. */
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml; charset=UTF-8");
msIO_sendHeaders();
msIO_printf("<?xml version='1.0' encoding=\"UTF-8\" standalone=\"no\" ?>\n");
msIO_printf("<!DOCTYPE ServiceExceptionReport SYSTEM \"%s/wms/1.1.0/exception_1_1_0.dtd\">\n",schemalocation);
msIO_printf("<ServiceExceptionReport version=\"1.1.0\">\n");
} else if (nVersion <= OWS_1_1_1) { /* 1.1.1 */
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml; charset=UTF-8");
msIO_sendHeaders();
msIO_printf("<?xml version='1.0' encoding=\"UTF-8\" standalone=\"no\" ?>\n");
msIO_printf("<!DOCTYPE ServiceExceptionReport SYSTEM \"%s/wms/1.1.1/exception_1_1_1.dtd\">\n", schemalocation);
msIO_printf("<ServiceExceptionReport version=\"1.1.1\">\n");
} else { /*1.3.0*/
if (strcasecmp(wms_exception_format, "application/vnd.ogc.se_xml") == 0) {
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml; charset=UTF-8");
} else {
msIO_setHeader("Content-Type","text/xml; charset=UTF-8");
}
msIO_sendHeaders();
msIO_printf("<?xml version='1.0' encoding=\"UTF-8\" standalone=\"no\" ?>\n");
msIO_printf("<ServiceExceptionReport version=\"1.3.0\" xmlns=\"http://www.opengis.net/ogc\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.opengis.net/ogc %s/wms/1.3.0/exceptions_1_3_0.xsd\">\n",
schemalocation);
}
if (exception_code)
msIO_printf("<ServiceException code=\"%s\">\n", exception_code);
else
msIO_printf("<ServiceException>\n");
msWriteErrorXML(stdout);
msIO_printf("</ServiceException>\n");
msIO_printf("</ServiceExceptionReport>\n");
}
free(schemalocation);
return MS_FAILURE; /* so that we can call 'return msWMSException();' anywhere */
}
int msWMSSetTimePattern(const char *timepatternstring, char *timestring, int checkonly)
{
char **atimes, **ranges, **patterns;
int numtimes, numpatterns, numranges, i, j, k;
char *tmpstr = NULL;
int ret = MS_SUCCESS;
if (timepatternstring && timestring) {
/* parse the time parameter to extract a distinct time. */
/* time value can be dicrete times (eg 2004-09-21), */
/* multiple times (2004-09-21, 2004-09-22, ...) */
/* and range(s) (2004-09-21/2004-09-25, 2004-09-27/2004-09-29) */
atimes = msStringSplit(timestring, ',', &numtimes);
/* get the pattern to use */
if (numtimes > 0) {
patterns = msStringSplit(timepatternstring, ',', &numpatterns);
for (j=0; j<numtimes;++j) {
ranges = msStringSplit(atimes[j], '/', &numranges);
for (k=0; k<numranges;++k) {
int match = MS_FALSE;
for (i=0; i<numpatterns; ++i) {
if (patterns[i] && strlen(patterns[i]) > 0) {
msStringTrimBlanks(patterns[i]);
tmpstr = msStringTrimLeft(patterns[i]);
if (msTimeMatchPattern(ranges[k], tmpstr) == MS_TRUE) {
if (!checkonly) msSetLimitedPatternsToUse(tmpstr);
match = MS_TRUE;
break;
}
}
}
if (match == MS_FALSE) {
msSetError(MS_WMSERR, "Time value %s given does not match the time format pattern.", "msWMSSetTimePattern", ranges[k]);
ret = MS_FAILURE;
break;
}
}
msFreeCharArray(ranges, numranges);
if (ret == MS_FAILURE)
break;
}
msFreeCharArray(patterns, numpatterns);
}
msFreeCharArray(atimes, numtimes);
}
return ret;
}
/*
** Apply the TIME parameter to layers that are time aware
*/
int msWMSApplyTime(mapObj *map, int version, char *time, char *wms_exception_format)
{
int i=0;
layerObj *lp = NULL;
const char *timeextent, *timefield, *timedefault, *timepattern = NULL;
if (map) {
timepattern = msOWSLookupMetadata(&(map->web.metadata), "MO", "timeformat");
for (i=0; i<map->numlayers; i++) {
lp = (GET_LAYER(map, i));
if (lp->status != MS_ON && lp->status != MS_DEFAULT)
continue;
/* check if the layer is time aware */
timeextent = msOWSLookupMetadata(&(lp->metadata), "MO", "timeextent");
timefield = msOWSLookupMetadata(&(lp->metadata), "MO", "timeitem");
timedefault = msOWSLookupMetadata(&(lp->metadata), "MO", "timedefault");
if (timeextent && timefield) {
/* check to see if the time value is given. If not */
/* use default time. If default time is not available */
/* send an exception */
if (time == NULL || strlen(time) <=0) {
if (timedefault == NULL) {
msSetError(MS_WMSERR, "No Time value was given, and no default time value defined.", "msWMSApplyTime");
return msWMSException(map, version, "MissingDimensionValue", wms_exception_format);
} else {
if (msValidateTimeValue((char *)timedefault, timeextent) == MS_FALSE) {
msSetError(MS_WMSERR, "No Time value was given, and the default time value %s is invalid or outside the time extent defined %s", "msWMSApplyTime", timedefault, timeextent);
/* return MS_FALSE; */
return msWMSException(map, version, "InvalidDimensionValue", wms_exception_format);
}
msLayerSetTimeFilter(lp, timedefault, timefield);
}
} else {
/*
** Check to see if there is a list of possible patterns defined. If it is the case, use
** it to set the time pattern to use for the request.
**
** Last argument is set to TRUE (checkonly) to not trigger the patterns info setting, rather
** to only apply the wms_timeformats on the user request values, not the mapfile values.
*/
if (timepattern && time && strlen(time) > 0) {
if (msWMSSetTimePattern(timepattern, time, MS_TRUE) == MS_FAILURE)
return msWMSException(map, version,"InvalidDimensionValue", wms_exception_format);
}
/* check if given time is in the range */
if (msValidateTimeValue(time, timeextent) == MS_FALSE) {
if (timedefault == NULL) {
msSetError(MS_WMSERR, "Time value(s) %s given is invalid or outside the time extent defined (%s).", "msWMSApplyTime", time, timeextent);
/* return MS_FALSE; */
return msWMSException(map, version,
"InvalidDimensionValue", wms_exception_format);
} else {
if (msValidateTimeValue((char *)timedefault, timeextent) == MS_FALSE) {
msSetError(MS_WMSERR, "Time value(s) %s given is invalid or outside the time extent defined (%s), and default time set is invalid (%s)", "msWMSApplyTime", time, timeextent, timedefault);
/* return MS_FALSE; */
return msWMSException(map, version,
"InvalidDimensionValue", wms_exception_format);
} else
msLayerSetTimeFilter(lp, timedefault, timefield);
}
} else {
/* build the time string */
msLayerSetTimeFilter(lp, time, timefield);
timeextent= NULL;
}
}
}
}
/* last argument is MS_FALSE to trigger a method call that set the patterns
info. some drivers use it */
if (timepattern && time && strlen(time) > 0) {
if (msWMSSetTimePattern(timepattern, time, MS_FALSE) == MS_FAILURE)
return msWMSException(map, version, "InvalidDimensionValue", wms_exception_format);
}
}
return MS_SUCCESS;
}
/*
** Apply the FILTER parameter to layers (RFC118)
*/
int msWMSApplyFilter(mapObj *map, int version, const char *filter,
int def_srs_needs_axis_swap, char *wms_exception_format)
{
int i=0, numlayers;
int numfilters=0, curfilter=0;
char **paszFilters = NULL;
FilterEncodingNode *psNode = NULL;
// Empty filter should be ignored
if (!filter || strlen(filter) == 0)
return MS_SUCCESS;
if (!map)
return MS_FAILURE;
/* Count number of requested layers
* Only layers with STATUS ON were in the LAYERS request param.
* Layers with STATUS DEFAULT were set in the mapfile and are
* not expected to have a corresponding filter in the request
*/
for(i=0, numlayers=0; i<map->numlayers; i++) {
layerObj *lp=NULL;
if(map->layerorder[i] != -1) {
lp = (GET_LAYER(map, map->layerorder[i]));
if (lp->status == MS_ON)
numlayers++;
}
}
/* -------------------------------------------------------------------- */
/* Parse the Filter parameter. If there are several Filter */
/* parameters, each Filter is inside parentheses. */
/* -------------------------------------------------------------------- */
numfilters = 0;
if (filter[0] == '(') {
paszFilters = FLTSplitFilters(filter, &numfilters);
if ( paszFilters && numfilters > 0 && numlayers != numfilters ) {
msFreeCharArray(paszFilters, numfilters);
paszFilters = NULL;
}
} else if (numlayers == 1) {
numfilters=1;
paszFilters = (char **)msSmallMalloc(sizeof(char *)*numfilters);
paszFilters[0] = msStrdup(filter);
}
if (numlayers != numfilters) {
msSetError(MS_WMSERR, "Wrong number of filter elements, one filter must be specified for each requested layer.",
"msWMSApplyFilter" );
msFreeCharArray(paszFilters, numfilters);
return msWMSException(map, version, "InvalidParameterValue", wms_exception_format);
}
/* We're good to go. Apply each filter to the corresponding layer */
for(i=0, curfilter=0; i<map->numlayers && curfilter<numfilters; i++) {
layerObj *lp=NULL;
if(map->layerorder[i] != -1)
lp = (GET_LAYER(map, map->layerorder[i]));
/* Only layers with STATUS ON were in the LAYERS request param.*/
if (lp == NULL || lp->status != MS_ON)
continue;
/* Skip empty filters */
if (paszFilters[curfilter][0] == '\0') {
curfilter++;
continue;
}
/* Force setting a template to enable query. */
if (lp->template == NULL)
lp->template = msStrdup("ttt.html");
/* Parse filter */
psNode = FLTParseFilterEncoding(paszFilters[curfilter]);
if (!psNode) {
msSetError(MS_WMSERR,
"Invalid or Unsupported FILTER : %s",
"msWMSApplyFilter()", paszFilters[curfilter]);
msFreeCharArray(paszFilters, numfilters);
return msWMSException(map, version, "InvalidParameterValue", wms_exception_format);
}
/* For WMS 1.3 and up, we may need to swap the axis of bbox and geometry
* elements inside the filter(s)
*/
if (version >= OWS_1_3_0)
FLTDoAxisSwappingIfNecessary(psNode, def_srs_needs_axis_swap);
#ifdef do_we_need_this
FLTProcessPropertyIsNull(psNode, map, lp->index);
/*preparse the filter for gml aliases*/
FLTPreParseFilterForAliasAndGroup(psNode, map, lp->index, "G");
/* Check that FeatureId filters are consistent with the active layer */
if( FLTCheckFeatureIdFilters(psNode, map, lp->index) == MS_FAILURE)
{
FLTFreeFilterEncodingNode( psNode );
return msWFSException(map, "mapserv", MS_OWS_ERROR_NO_APPLICABLE_CODE, paramsObj->pszVersion);
}
/* FIXME?: could probably apply to WFS 1.1 too */
if( nWFSVersion >= OWS_2_0_0 )
{
int nEvaluation;
if( FLTCheckInvalidOperand(psNode) == MS_FAILURE)
{
FLTFreeFilterEncodingNode( psNode );
msFreeCharArray(paszFilters, numfilters);
return msWFSException(map, "filter", MS_WFS_ERROR_OPERATION_PROCESSING_FAILED, paramsObj->pszVersion);
}
if( FLTCheckInvalidProperty(psNode, map, lp->index) == MS_FAILURE)
{
FLTFreeFilterEncodingNode( psNode );
msFreeCharArray(paszFilters, numfilters);
return msWFSException(map, "filter", MS_OWS_ERROR_INVALID_PARAMETER_VALUE, paramsObj->pszVersion);
}
psNode = FLTSimplify(psNode, &nEvaluation);
if( psNode == NULL )
{
FLTFreeFilterEncodingNode( psNode );
msFreeCharArray(paszFilters, numfilters);
if( nEvaluation == 1 ) {
/* return full layer */
return msWFSRunBasicGetFeature(map, lp, paramsObj, nWFSVersion);
}
else {
/* return empty result set */
return MS_SUCCESS;
}
}
}
#endif
/* Apply filter to this layer */
if( FLTApplyFilterToLayer(psNode, map, lp->index) != MS_SUCCESS ) {
errorObj* ms_error = msGetErrorObj();
if(ms_error->code != MS_NOTFOUND) {
msSetError(MS_WMSERR, "FLTApplyFilterToLayer() failed", "msWMSApplyFilter()");
FLTFreeFilterEncodingNode( psNode );
msFreeCharArray(paszFilters, numfilters);
return msWMSException(map, version, "InvalidParameterValue", wms_exception_format);
}
}
FLTFreeFilterEncodingNode( psNode );
curfilter++;
}/* for */
msFreeCharArray(paszFilters, numfilters);
return MS_SUCCESS;
}
/*
** msWMSPrepareNestedGroups()
**
** purpose: Parse WMS_LAYER_GROUP settings into arrays
**
** params:
** - nestedGroups: This array holds the arrays of groups that have been set
** through the WMS_LAYER_GROUP metadata
** - numNestedGroups: This array holds the number of groups set in
** WMS_LAYER_GROUP for each layer
** - isUsedInNestedGroup: This array indicates if the layer is used as group
** as set through the WMS_LAYER_GROUP metadata
*/
void msWMSPrepareNestedGroups(mapObj* map, int nVersion, char*** nestedGroups, int* numNestedGroups, int* isUsedInNestedGroup)
{
int i, k;
const char* groups;
char* errorMsg;
//Create array to hold unique groups
int maxgroups = 2000;
int maxgroupiter = 1;
char** uniqgroups = msSmallMalloc(maxgroups * sizeof(char*));
int uniqgroupcount = 0;
for (i = 0; i < map->numlayers; i++) {
nestedGroups[i] = NULL; /* default */
numNestedGroups[i] = 0; /* default */
isUsedInNestedGroup[i] = 0; /* default */
groups = msOWSLookupMetadata(&(GET_LAYER(map, i)->metadata), "MO", "layer_group");
if ((groups != NULL) && (strlen(groups) != 0)) {
if (GET_LAYER(map, i)->group != NULL && strlen(GET_LAYER(map, i)->group) != 0) {
errorMsg = "It is not allowed to set both the GROUP and WMS_LAYER_GROUP for a layer";
msSetError(MS_WMSERR, errorMsg, "msWMSPrepareNestedGroups()", NULL);
msIO_fprintf(stdout, "<!-- ERROR: %s -->\n", errorMsg);
/* cannot return exception at this point because we are already writing to stdout */
} else {
if (groups[0] != '/') {
errorMsg = "The WMS_LAYER_GROUP metadata does not start with a '/'";
msSetError(MS_WMSERR, errorMsg, "msWMSPrepareNestedGroups()", NULL);
msIO_fprintf(stdout, "<!-- ERROR: %s -->\n", errorMsg);
/* cannot return exception at this point because we are already writing to stdout */
} else {
/* split into subgroups. Start at address + 1 because the first '/' would cause an extra empty group */
nestedGroups[i] = msStringSplit(groups + 1, '/', &numNestedGroups[i]);
/* Iterate through the groups and add them to the unique groups array */
for (k=0; k<numNestedGroups[i]; k++) {
int found ,l = 0;
found = 0;
for (l=0; l<uniqgroupcount; l++) {
if ( strcasecmp(uniqgroups[l], nestedGroups[i][k]) == 0 ){
found = 1;
break;
}
}
if(found == 0){
uniqgroups[uniqgroupcount] = nestedGroups[i][k];
uniqgroupcount++;
// Does need only when maximum unique groups exceed 2000
if ( uniqgroupcount == (maxgroups*maxgroupiter)){
uniqgroups = realloc(uniqgroups, (uniqgroupcount + maxgroups) * sizeof(char*));
maxgroupiter++;
}
}
}
}
}
}
}
/* Iterate through layers to find out whether they are in any of the nested groups */
for (i = 0; i < map->numlayers; i++) {
for (k=0; k<uniqgroupcount; k++) {
if ( strcasecmp(GET_LAYER(map, i)->name ,uniqgroups[k]) == 0 ){
isUsedInNestedGroup[i] = 1;
break;
}
}
}
/* free uniqgroups */
free(uniqgroups);
}
/*
** Validate that a given dimension is inside the extents defined
*/
int msWMSValidateDimensionValue(char *value, const char *dimensionextent, int forcecharcter)
{
char **extents=NULL, **ranges=NULL, **onerange=NULL;
int numextents, numranges, numonerange;
char **aextentvalues = NULL;
int nextentvalues=0;
pointObj *aextentranges=NULL;
int nextentranges=0;
int isextentavalue = MS_FALSE, isextentarange=MS_FALSE;
int i,j,status=MS_FALSE;
char **uservalues=NULL;
int numuservalues=0;
int ischaracter = MS_FALSE;
float minval, maxval,currentval,mincurrentval,maxcurrentval, mincurrentrange, maxcurrentrange;
int uservaluevalid= MS_FALSE;
if (forcecharcter)
ischaracter = MS_TRUE;
if (!value || !dimensionextent)
return MS_FALSE;
/*for the value, we support descrete values (2005) */
/* multiple values (abc, def, ...) */
/* and range(s) (1000/2000, 3000/5000) */
/** we do not support resolution*/
/* -------------------------------------------------------------------- */
/* parse the extent first. */
/* -------------------------------------------------------------------- */
extents = msStringSplit (dimensionextent, ',', &numextents);
if (numextents == 1) {
if (strstr(dimensionextent, "/") == NULL) {
/*single value*/
isextentavalue = MS_TRUE;
nextentvalues = 1;
aextentvalues = (char **)msSmallMalloc(sizeof(char *));
msStringTrim(extents[0]);
aextentvalues[0] = msStrdup(dimensionextent);
if (!forcecharcter)
ischaracter= !FLTIsNumeric((char *)dimensionextent);
} else {
ranges = msStringSplit (dimensionextent, '/', &numranges);
if(ranges && (numranges == 2 || numranges == 3)) {
/*single range*/
isextentarange = MS_TRUE;
aextentranges = msSmallMalloc(sizeof(pointObj));
nextentranges=1;
aextentranges[0].x = atof(ranges[0]);
aextentranges[0].y = atof(ranges[1]);
/*ranges should be numeric*/
ischaracter = MS_FALSE;
}
msFreeCharArray(ranges, numranges);
ranges = NULL;
}
} else if (numextents > 1) { /*check if it is muliple values or mutliple ranges*/
if (strstr(dimensionextent, "/") == NULL) {
/*multiple values*/
isextentavalue = MS_TRUE;
aextentvalues = (char **)msSmallMalloc(sizeof(char *)*numextents);
for (i=0; i<numextents; i++) {
char *stmp = msStrdup(extents[i]);
msStringTrim(stmp);
aextentvalues[i] = stmp;
}
nextentvalues = numextents;
if (!forcecharcter)
ischaracter= !FLTIsNumeric(aextentvalues[0]);
} else { /*multiple range extent*/
int isvalidextent = MS_TRUE;
/*ranges should be numeric*/
ischaracter = MS_FALSE;
isextentarange = MS_TRUE;
aextentranges = msSmallMalloc(sizeof(pointObj) * numextents);
nextentranges=0;
for (i=0; i<numextents; i++) {
onerange = msStringSplit(extents[i], '/', &numonerange);
if (!onerange || (numonerange != 2 && numonerange != 3)) {
isvalidextent = MS_FALSE;
break;
}
if (isvalidextent) {
aextentranges[nextentranges].x = atof(onerange[0]);
aextentranges[nextentranges++].y = atof(onerange[1]);
}
msFreeCharArray(onerange, numonerange);
onerange = NULL;
}
if (!isvalidextent) {
msFree(aextentranges);
aextentranges = NULL;
nextentranges = 0;
isextentarange = MS_FALSE;
}
}
}
if (numextents > 0) {
msFreeCharArray(extents, numextents);
extents = NULL;
}
/* make sure that we got a valid extent*/
if (!isextentavalue && !isextentarange) {
status = MS_FALSE;
goto dimension_cleanup;
}
/*for the extent of the dimesion, we support
single value, or list of mulitiple values comma separated,
a single range or multipe ranges */
uservalues = msStringSplit (value, ',', &numuservalues);
uservaluevalid = MS_FALSE;
if (numuservalues == 1) {
/*user iput=single*/
/*is it descret or range*/
ranges = msStringSplit(uservalues[0], '/', &numranges);
if (numranges == 1) { /*discrete*/
if (isextentavalue) {
/*single user value, single/multiple values extent*/
for (i=0; i<nextentvalues; i++) {
if (ischaracter)
uservaluevalid = !strcmp(uservalues[0], aextentvalues[i]);
else {
if (atof(uservalues[0]) == atof(aextentvalues[i]))
uservaluevalid = MS_TRUE;
}
if(uservaluevalid)
break;
}
} else if (isextentarange) {
/*single user value, single/multiple range extent*/
currentval = atof(uservalues[0]);
for (i=0; i<nextentranges; i++) {
minval = aextentranges[i].x;
maxval = aextentranges[i].y;
if (currentval >= minval && currentval <= maxval) {
uservaluevalid= MS_TRUE;
break;
}
}
}
} else if (numranges == 2 || numranges == 3) { /*range*/
/*user input=single range. In this case the extents must
be of a range type.*/
mincurrentval = atof(ranges[0]);
maxcurrentval = atof(ranges[1]);
if (isextentarange) {
for (i=0; i<nextentranges; i++) {
minval = aextentranges[i].x;
maxval = aextentranges[i].y;
if(minval <= mincurrentval && maxval >= maxcurrentval &&
minval <= maxval) {
uservaluevalid= MS_TRUE;
break;
}
}
}
}
msFreeCharArray(ranges, numranges);
ranges = NULL;
} else if (numuservalues > 1) { /*user input=multiple*/
if (strstr(value, "/") == NULL) {
/*user input=multiple value*/
int valueisvalid = MS_FALSE;
for (i=0; i<numuservalues; i++) {
valueisvalid = MS_FALSE;
if (isextentavalue) {
/*user input is multiple values, extent is defned as one or multiple values*/
for (j=0; j<nextentvalues; j++) {
if (ischaracter) {
if (strcmp(uservalues[i], aextentvalues[j]) == 0) {
valueisvalid = MS_TRUE;
break;
}
} else {
if (atof(uservalues[i]) == atof(aextentvalues[j])) {
valueisvalid = MS_TRUE;
break;
}
}
}
/*every value shoule be valid*/
if (!valueisvalid)
break;
} else if (isextentarange) {
/*user input is multiple values, extent is defned as one or multiple ranges*/
for (j=0; j<nextentranges; j++) {
minval = aextentranges[j].x;
maxval = aextentranges[j].y;
currentval = atof(uservalues[i]);
if(minval <= currentval && maxval >= currentval &&
minval <= maxval) {
valueisvalid = MS_TRUE;
break;
}
}
if (!valueisvalid)
break;
}
}
uservaluevalid = valueisvalid;
} else { /*user input multiple ranges*/
int valueisvalid = MS_TRUE;
for (i=0; i<numuservalues; i++) {
/*each ranges should be valid*/
onerange = msStringSplit(uservalues[i], '/', &numonerange);
if (numonerange == 2 || numonerange == 3) {
mincurrentval = atof(onerange[0]);
maxcurrentval = atof(onerange[1]);
/*extent must be defined also as a rangle*/
if (isextentarange) {
for (j=0; j<nextentranges; j++) {
mincurrentrange = aextentranges[j].x;
maxcurrentrange = aextentranges[j].y;
if(mincurrentval >=mincurrentrange && maxcurrentval <= maxcurrentrange &&
mincurrentval <= maxcurrentval) {
break;
}
}
if (j == nextentranges) {
valueisvalid = MS_FALSE;
msFreeCharArray(onerange, numonerange);
onerange = NULL;
break;
}
}
} else {
valueisvalid = MS_FALSE;
}
msFreeCharArray(onerange, numonerange);
onerange = NULL;
}
uservaluevalid = valueisvalid;
}
}
if(uservaluevalid)
status = MS_TRUE;
dimension_cleanup:
if(ranges)
msFreeCharArray(ranges, numranges);
if(onerange)
msFreeCharArray(onerange, numonerange);
if(extents)
msFreeCharArray(extents, numextents);
if(uservalues)
msFreeCharArray(uservalues, numuservalues);
if (aextentvalues) {
for (i=0; i<nextentvalues; i++)
msFree(aextentvalues[i]);
msFree(aextentvalues);
}
if(aextentranges) {
msFree(aextentranges);
}
return status;
}
int msWMSApplyDimensionLayer(layerObj *lp, const char *item, char *value, int forcecharcter)
{
int result = MS_FALSE;
char *pszExpression=NULL;
int tlpindex = -1;
if (lp && item && value) {
/*for the value, we support descrete values (2005) */
/* multiple values (abc, def, ...) */
/* and range(s) (1000/2000, 3000/5000) */
pszExpression = FLTGetExpressionForValuesRanges(lp, (char *)item, value, forcecharcter);
if (pszExpression) {
// If tileindex is set, the filter is applied to tileindex too.
if (lp->tileindex && (tlpindex = msGetLayerIndex(lp->map, lp->tileindex)) != -1) {
if(FLTApplyExpressionToLayer((GET_LAYER(lp->map, tlpindex)), pszExpression))
result = MS_TRUE;
else
result = MS_FALSE;
}
if(FLTApplyExpressionToLayer(lp, pszExpression))
result = MS_TRUE;
else
result = MS_FALSE;
msFree(pszExpression);
}
}
return result;
}
int msWMSApplyDimension(layerObj *lp, int version, char *dimensionname, char *value,
char *wms_exception_format)
{
char *dimensionitemname=NULL, *dimensionextentname=NULL, *dimensiontypename=NULL;
char *dimensionunitname=NULL, *dimensiondefaultname=NULL;
const char *dimensionitem, *dimensionextent, *dimensiontype, *dimensionunit, *dimensiondefault;
int forcecharcter;
int result = MS_FALSE;
char *dimension = NULL, *currentvalue=NULL;
if (lp && dimensionname && value) {
/*check if the dimension name passes starts with dim_. All dimensions should start with dim_, except elevation*/
if (strncasecmp(dimensionname, "dim_", 4) == 0)
dimension = msStrdup(dimensionname+4);
else
dimension = msStrdup(dimensionname);
/*if value is empty and a default is defined, use it*/
if (strlen(value) > 0)
currentvalue = msStrdup(value);
else {
dimensiondefaultname = msStrdup(dimension);
dimensiondefaultname = msStringConcatenate(dimensiondefaultname, "_default");
dimensiondefault = msOWSLookupMetadata(&(lp->metadata), "M", dimensiondefaultname);
if (dimensiondefault && strlen(dimensiondefault) > 0)
currentvalue = msStrdup(dimensiondefault);
}
/*check if the manadatory metada related to the dimension are set*/
dimensionitemname = msStrdup(dimension);
dimensionitemname = msStringConcatenate(dimensionitemname, "_item");
dimensionitem = msOWSLookupMetadata(&(lp->metadata), "M", dimensionitemname);
dimensionextentname = msStrdup(dimension);
dimensionextentname = msStringConcatenate(dimensionextentname, "_extent");
dimensionextent = msOWSLookupMetadata(&(lp->metadata), "M", dimensionextentname);
dimensionunitname = msStrdup(dimension);
dimensionunitname = msStringConcatenate(dimensionunitname, "_units");
dimensionunit = msOWSLookupMetadata(&(lp->metadata), "M", dimensionunitname);
/*if the server want to force the type to character*/
dimensiontypename = msStrdup(dimension);
dimensiontypename = msStringConcatenate(dimensiontypename, "_type");
dimensiontype = msOWSLookupMetadata(&(lp->metadata), "M", dimensiontypename);
forcecharcter = MS_FALSE;
if (dimensiontype && strcasecmp(dimensiontype, "Character") == 0)
forcecharcter = MS_TRUE;
if (dimensionitem && dimensionextent && dimensionunit && currentvalue) {
if(msWMSValidateDimensionValue(currentvalue, dimensionextent, forcecharcter)) {
result = msWMSApplyDimensionLayer(lp, dimensionitem, currentvalue, forcecharcter);
} else {
msSetError(MS_WMSERR, "Dimension %s with a value of %s is invalid or outside the extents defined", "msWMSApplyDimension",
dimension, currentvalue);
result = MS_FALSE;
}
} else
msSetError(MS_WMSERR, "Dimension %s : invalid settings. Make sure that item, units and extent are set.", "msWMSApplyDimension",
dimension);
msFree(dimensionitemname);
msFree(dimensionextentname);
msFree(dimensiontypename);
msFree(dimensionunitname);
msFree(dimensiondefaultname);
msFree(dimension);
msFree(currentvalue);
}
return result;
}
/*
**
*/
int msWMSLoadGetMapParams(mapObj *map, int nVersion,
char **names, char **values, int numentries, char *wms_exception_format,
const char *wms_request, owsRequestObj *ows_request)
{
int i, adjust_extent = MS_FALSE, nonsquare_enabled = MS_FALSE;
int transparent = MS_NOOVERRIDE;
int bbox_pixel_is_point = MS_FALSE;
outputFormatObj *format = NULL;
int validlayers = 0;
char *styles = NULL;
int numlayers = 0;
char **layers = NULL;
int layerfound =0;
int invalidlayers = 0;
char epsgbuf[100];
char srsbuffer[100];
int epsgvalid = MS_FALSE;
int timerequest = 0;
char *stime = NULL;
char **tokens=NULL;
int n,j;
int srsfound = 0;
int bboxfound = 0;
int formatfound = 0;
int widthfound = 0;
int heightfound = 0;
char *request = NULL;
int status = 0;
const char *layerlimit = NULL;
const char *sldenabled=NULL;
char *sld_url=NULL, *sld_body=NULL;
int need_axis_swap = MS_FALSE;
const char *filter = NULL;
epsgbuf[0]='\0';
srsbuffer[0]='\0';
/* Some of the getMap parameters are actually required depending on the */
/* request, but for now we assume all are optional and the map file */
/* defaults will apply. */