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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 "mapgml.h"
#include <ctype.h>
#include "maptemplate.h"
#include "mapogcsld.h"
#include "mapogcfilter.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)
{
const char *encoding;
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) );
encoding = msOWSLookupMetadata(&(map->web.metadata), "MO", "encoding");
/* 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 */
if (encoding)
msIO_setHeader("Content-Type","text/xml; charset=%s", encoding);
else
msIO_setHeader("Content-Type","text/xml");
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 */
if (encoding)
msIO_setHeader("Content-Type","text/xml; charset=%s", encoding);
else
msIO_setHeader("Content-Type","text/xml");
msIO_sendHeaders();
msOWSPrintEncodeMetadata(stdout, &(map->web.metadata),
"MO", "encoding", OWS_NOERR,
"<?xml version='1.0' encoding=\"%s\" standalone=\"no\" ?>\n",
"ISO-8859-1");
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. */
if (encoding)
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml; charset=%s", encoding);
else
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml");
msIO_sendHeaders();
msOWSPrintEncodeMetadata(stdout, &(map->web.metadata),
"MO", "encoding", OWS_NOERR,
"<?xml version='1.0' encoding=\"%s\" standalone=\"no\" ?>\n",
"ISO-8859-1");
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 */
if (encoding)
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml; charset=%s", encoding);
else
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml");
msIO_sendHeaders();
msOWSPrintEncodeMetadata(stdout, &(map->web.metadata),
"MO", "encoding", OWS_NOERR,
"<?xml version='1.0' encoding=\"%s\" standalone=\"no\" ?>\n",
"ISO-8859-1");
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) {
if (encoding)
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml; charset=%s", encoding);
else
msIO_setHeader("Content-Type","application/vnd.ogc.se_xml");
} else {
if (encoding)
msIO_setHeader("Content-Type","text/xml; charset=%s", encoding);
else
msIO_setHeader("Content-Type","text/xml");
}
msIO_sendHeaders();
msOWSPrintEncodeMetadata(stdout, &(map->web.metadata),
"MO", "encoding", OWS_NOERR,
"<?xml version='1.0' encoding=\"%s\" standalone=\"no\" ?>\n",
"ISO-8859-1");
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) msSetLimitedPattersToUse(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, *timpattern = NULL;
if (map) {
timpattern = 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.. to only apply the wms_timeformats on the
user request values, not the mapfile values. */
if (timpattern && time && strlen(time) > 0)
if (msWMSSetTimePattern(timpattern, 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 (timpattern && time && strlen(time) > 0)
if (msWMSSetTimePattern(timpattern, time, MS_FALSE) == MS_FAILURE)
return msWMSException(map, version,"InvalidDimensionValue", wms_exception_format);
}
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, j, k;
const char* groups;
char* errorMsg;
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]);
/* */
for (j = 0; j < map->numlayers; j++) {
if (isUsedInNestedGroup[j])
continue;
for (k=0; k<numNestedGroups[i]; k++) {
if ( GET_LAYER(map, j)->name && strcasecmp(GET_LAYER(map, j)->name, nestedGroups[i][k]) == 0 ) {
isUsedInNestedGroup[j] = 1;
break;
}
}
}
}
}
}
}
}
/*
** 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;
char **aextentvalues = NULL;
int nextentvalues=0;
pointObj *aextentranges=NULL;
int nextentranges=0;
int isextentavalue = MS_FALSE, isextentarange=MS_FALSE;
int i,j, ntmp;
char **uservalues=NULL;
int numuservalues=0;
char *stmp = NULL;
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 {
ntmp = -1;
ranges = msStringSplit (dimensionextent, '/', &ntmp);
if(ranges && (ntmp == 2 || ntmp == 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;
}
if (ranges && ntmp > 0) {
msFreeCharArray(ranges, ntmp);
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++) {
stmp = msStrdup(extents[i]);
msStringTrim(stmp);
aextentvalues[i] = msStrdup(stmp);
msFree(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], '/', &ntmp);
if (!onerange || (ntmp != 2 && ntmp != 3)) {
isvalidextent = MS_FALSE;
break;
}
if (isvalidextent) {
aextentranges[nextentranges].x = atof(onerange[0]);
aextentranges[nextentranges++].y = atof(onerange[1]);
}
if (onerange && ntmp > 0 ) {
msFreeCharArray(onerange, ntmp);
onerange = NULL;
}
}
if (!isvalidextent) {
msFree(aextentranges);
nextentranges = 0;
isextentarange = MS_FALSE;
}
}
}
if (numextents > 0) {
msFreeCharArray(extents, numextents);
extents = NULL;
}
/* make sure that we got a valid extent*/
if (!isextentavalue && !isextentarange) {
return MS_FALSE;
}
/*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], '/', &ntmp);
if (ntmp == 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 (ntmp == 2 || ntmp == 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;
}
}
}
}
if (ranges && ntmp > 0)
msFreeCharArray(ranges, ntmp);
} 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], '/', &ntmp);
if (ntmp == 2 || ntmp == 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, ntmp);
break;
}
}
} else {
valueisvalid = MS_FALSE;
}
msFreeCharArray(onerange, ntmp);
}
uservaluevalid = valueisvalid;
}
}
if(uservalues && numuservalues > 0)
msFreeCharArray(uservalues, numuservalues);
if (aextentvalues && nextentvalues > 0) {
for (i=0; i<nextentvalues; i++)
msFree(aextentvalues[i]);
msFree(aextentvalues);
}
if(aextentranges && nextentranges > 0) {
msFree(aextentranges);
}
if(uservaluevalid)
return MS_TRUE;
return MS_FALSE;
}
int msWMSApplyDimensionLayer(layerObj *lp, const char *item, char *value, int forcecharcter)
{
int result = MS_FALSE;
char *pszExpression=NULL;
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(FLTApplyExpressionToLayer(lp, pszExpression))
result = MS_TRUE;
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, currentvalue);
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 iUnits = -1;
int nLayerOrder = 0;
int transparent = MS_NOOVERRIDE;
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;
const char *projstring;
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;
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. */
msAdjustExtent(&(map->extent), map->width, map->height);
/*
Check for SLDs first. If SLD is available LAYERS and STYLES parameters are non mandatory
*/
for(i=0; map && i<numentries; i++) {
/* check if SLD is passed. If yes, check for OGR support */
if (strcasecmp(names[i], "SLD") == 0 || strcasecmp(names[i], "SLD_BODY") == 0) {
sldenabled = msOWSLookupMetadata(&(map->web.metadata), "MO", "sld_enabled");
if (sldenabled == NULL)
sldenabled = "true";
if (ogrEnabled == 0) {
msSetError(MS_WMSERR, "OGR support is not available.", "msWMSLoadGetMapParams()");
return msWMSException(map, nVersion, NULL, wms_exception_format);
} else {
if (strcasecmp(sldenabled, "true") == 0) {
if (strcasecmp(names[i], "SLD") == 0) {
sld_url = values[i];
}
if (strcasecmp(names[i], "SLD_BODY") == 0) {
sld_body = values[i];
}
}
}
}
}
for(i=0; map && i<numentries; i++) {
/* getMap parameters */
if (strcasecmp(names[i], "REQUEST") == 0) {
request = values[i];
}
if (strcasecmp(names[i], "LAYERS") == 0) {
int j, k, iLayer, *layerOrder;
char ***nestedGroups = NULL;
int *numNestedGroups = NULL;
int *isUsedInNestedGroup = NULL;
layerOrder = (int*)malloc(map->numlayers * sizeof(int));
MS_CHECK_ALLOC(layerOrder, map->numlayers * sizeof(int), MS_FAILURE)
layers = msStringSplit(values[i], ',', &numlayers);
if (layers==NULL || strlen(values[i]) <=0 || numlayers < 1) {
numlayers = 0;
if (sld_url == NULL && sld_body == NULL) {
msFreeCharArray(layers,numlayers);
msFree(layerOrder);
msSetError(MS_WMSERR, "At least one layer name required in LAYERS.",
"msWMSLoadGetMapParams()");
return msWMSException(map, nVersion, NULL, wms_exception_format);
}
}
if (nVersion >= OWS_1_3_0) {
layerlimit = msOWSLookupMetadata(&(map->web.metadata), "MO", "layerlimit");
if(layerlimit) {
if (numlayers > atoi(layerlimit)) {
msFreeCharArray(layers,numlayers);
msFree(layerOrder);
msSetError(MS_WMSERR, "Number of layers requested exceeds LayerLimit.",
"msWMSLoadGetMapParams()");
return msWMSException(map, nVersion, NULL, wms_exception_format);
}
}
}
for (iLayer=0; iLayer < map->numlayers; iLayer++) {
map->layerorder[iLayer] = iLayer;
layerOrder[iLayer] = 0;
}
for(j=0; j<map->numlayers; j++) {
/* Keep only layers with status=DEFAULT by default */
/* Layer with status DEFAULT is drawn first. */
if (GET_LAYER(map, j)->status != MS_DEFAULT)
GET_LAYER(map, j)->status = MS_OFF;
else {
map->layerorder[nLayerOrder++] = j;
layerOrder[j] = 1;
}
}
nestedGroups = (char***)msSmallCalloc(map->numlayers, sizeof(char**));
numNestedGroups = (int*)msSmallCalloc(map->numlayers, sizeof(int));
isUsedInNestedGroup = (int*)msSmallCalloc(map->numlayers, sizeof(int));
msWMSPrepareNestedGroups(map, nVersion, nestedGroups, numNestedGroups, isUsedInNestedGroup);
for (k=0; k<numlayers; k++) {
layerfound = 0;
for (j=0; j<map->numlayers; j++) {
/* Turn on selected layers only. */
if ( ((GET_LAYER(map, j)->name &&
strcasecmp(GET_LAYER(map, j)->name, layers[k]) == 0) ||
(map->name && strcasecmp(map->name, layers[k]) == 0) ||
(GET_LAYER(map, j)->group && strcasecmp(GET_LAYER(map, j)->group, layers[k]) == 0) ||
((numNestedGroups[j] >0) && msStringInArray(layers[k], nestedGroups[j], numNestedGroups[j]))) &&
((msIntegerInArray(GET_LAYER(map, j)->index, ows_request->enabled_layers, ows_request->numlayers))) ) {
if (GET_LAYER(map, j)->status != MS_DEFAULT) {
if (layerOrder[j] == 0) {
map->layerorder[nLayerOrder++] = j;
layerOrder[j] = 1;
GET_LAYER(map, j)->status = MS_ON;
}
}
validlayers++;
layerfound = 1;
}
}
if (layerfound == 0 && numlayers>0)
invalidlayers++;
}
/* free the stuff used for nested layers */
for (k = 0; k < map->numlayers; k++) {
if (numNestedGroups[k] > 0) {
msFreeCharArray(nestedGroups[k], numNestedGroups[k]);
}
}
free(nestedGroups);
free(numNestedGroups);
free(isUsedInNestedGroup);
/* set all layers with status off at end of array */
for (j=0; j<map->numlayers; j++) {
if (GET_LAYER(map, j)->status == MS_OFF)
if (layerOrder[j] == 0)
map->layerorder[nLayerOrder++] = j;
}
free(layerOrder);
msFreeCharArray(layers, numlayers);
} else if (strcasecmp(names[i], "STYLES") == 0) {
styles = values[i];
} else if ((strcasecmp(names[i], "SRS") == 0 && nVersion < OWS_1_3_0) ||
(strcasecmp(names[i], "CRS") == 0 && nVersion >= OWS_1_3_0)) {
srsfound = 1;
/* SRS is in format "EPSG:epsg_id" or "AUTO:proj_id,unit_id,lon0,lat0" */
if (strncasecmp(values[i], "EPSG:", 5) == 0) {
/* SRS=EPSG:xxxx */
/* don't need to copy init=xxx since the srsbudder is only
used with msLoadProjection and that does alreay the job */
/* snprintf(srsbuffer, 100, "init=epsg:%.20s", values[i]+5); */
snprintf(srsbuffer, sizeof(srsbuffer), "EPSG:%.20s",values[i]+5);
snprintf(epsgbuf, sizeof(epsgbuf), "EPSG:%.20s",values[i]+5);
/* This test was to correct a request by the OCG cite 1.3.0 test
sending CRS=ESPG:4326, Bug:*/
if (nVersion >= OWS_1_3_0) {
if (srsbuffer[strlen(srsbuffer)-1] == ',')
srsbuffer[strlen(srsbuffer)-1] = '\0';
if (epsgbuf[strlen(epsgbuf)-1] == ',')
epsgbuf[strlen(epsgbuf)-1] = '\0';
}
/* we need to wait until all params are read before */
/* loding the projection into the map. This will help */
/* insure that the passes srs is valid for all layers. */
/*
if (msLoadProjectionString(&(map->projection), buffer) != 0)
return msWMSException(map, nVersion, NULL);