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mapogroutput.cpp
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/**********************************************************************
* $Id$
*
* Project: MapServer
* Purpose: OGR Output (for WFS)
* Author: Frank Warmerdam (warmerdam@pobox.com)
*
**********************************************************************
* Copyright (c) 2010, Frank Warmerdam <warmerdam@pobox.com>
*
* 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 <assert.h>
#include "mapserver.h"
#include "mapproject.h"
#include "mapthread.h"
#include "mapows.h"
#include "ogr_api.h"
#include "ogr_srs_api.h"
#include "cpl_conv.h"
#include "cpl_vsi.h"
#include "cpl_string.h"
#include <string>
/************************************************************************/
/* msInitDefaultOGROutputFormat() */
/************************************************************************/
int msInitDefaultOGROutputFormat( outputFormatObj *format )
{
OGRSFDriverH hDriver;
msOGRInitialize();
/* -------------------------------------------------------------------- */
/* check that this driver exists. Note visiting drivers should */
/* be pretty threadsafe so don't bother acquiring the GDAL */
/* lock. */
/* -------------------------------------------------------------------- */
hDriver = OGRGetDriverByName( format->driver+4 );
if( hDriver == NULL ) {
msSetError( MS_MISCERR, "No OGR driver named `%s' available.",
"msInitDefaultOGROutputFormat()", format->driver+4 );
return MS_FAILURE;
}
if( !OGR_Dr_TestCapability( hDriver, ODrCCreateDataSource ) ) {
msSetError( MS_MISCERR, "OGR `%s' driver does not support output.",
"msInitDefaultOGROutputFormat()", format->driver+4 );
return MS_FAILURE;
}
/* -------------------------------------------------------------------- */
/* Initialize the object. */
/* -------------------------------------------------------------------- */
format->imagemode = MS_IMAGEMODE_FEATURE;
format->renderer = MS_RENDER_WITH_OGR;
/* perhaps we should eventually hardcode mimetypes and extensions
for some formats? */
return MS_SUCCESS;
}
/************************************************************************/
/* msCSLConcatenate() */
/************************************************************************/
static char** msCSLConcatenate( char** papszResult, char** papszToBeAdded )
{
char** papszIter = papszToBeAdded;
while( papszIter && *papszIter )
{
papszResult = CSLAddString(papszResult, *papszIter);
papszIter ++;
}
return papszResult;
}
/************************************************************************/
/* msOGRRecursiveFileList() */
/* */
/* Collect a list of all files under the named directory, */
/* including those in subdirectories. */
/************************************************************************/
char **msOGRRecursiveFileList( const char *path )
{
char **file_list;
char **result_list = NULL;
int i, count, change;
file_list = CPLReadDir( path );
count = CSLCount(file_list);
/* -------------------------------------------------------------------- */
/* Sort the file list so we always get them back in the same */
/* order - it makes autotests more stable. */
/* -------------------------------------------------------------------- */
do {
change = 0;
for( i = 0; i < count-1; i++ ) {
if( strcasecmp(file_list[i],file_list[i+1]) > 0 ) {
char *temp = file_list[i];
file_list[i] = file_list[i+1];
file_list[i+1] = temp;
change = 1;
}
}
} while( change );
/* -------------------------------------------------------------------- */
/* collect names we want and process subdirectories. */
/* -------------------------------------------------------------------- */
for( i = 0; i < count; i++ ) {
char full_filename[MS_MAXPATHLEN];
VSIStatBufL sStatBuf;
if( EQUAL(file_list[i],".") || EQUAL(file_list[i],"..") )
continue;
strlcpy( full_filename,
CPLFormFilename( path, file_list[i], NULL ),
sizeof(full_filename) );
if( VSIStatL( full_filename, &sStatBuf ) != 0 )
continue;
if( VSI_ISREG( sStatBuf.st_mode ) ) {
result_list = CSLAddString( result_list, full_filename );
} else if( VSI_ISDIR( sStatBuf.st_mode ) ) {
char **subfiles = msOGRRecursiveFileList( full_filename );
result_list = msCSLConcatenate( result_list, subfiles );
CSLDestroy( subfiles );
}
}
CSLDestroy( file_list );
return result_list;
}
/************************************************************************/
/* msOGRCleanupDS() */
/************************************************************************/
static void msOGRCleanupDS( const char *datasource_name )
{
char **file_list;
char path[MS_MAXPATHLEN];
int i;
VSIStatBufL sStatBuf;
if( VSIStatL( datasource_name, &sStatBuf ) != 0 )
return;
if( VSI_ISDIR( sStatBuf.st_mode ) )
strlcpy( path, datasource_name, sizeof(path) );
else
strlcpy( path, CPLGetPath( datasource_name ), sizeof(path) );
file_list = CPLReadDir( path );
for( i = 0; file_list != NULL && file_list[i] != NULL; i++ ) {
char full_filename[MS_MAXPATHLEN];
VSIStatBufL sStatBuf;
if( EQUAL(file_list[i],".") || EQUAL(file_list[i],"..") )
continue;
strlcpy( full_filename,
CPLFormFilename( path, file_list[i], NULL ),
sizeof(full_filename) );
if( VSIStatL( full_filename, &sStatBuf ) != 0 )
continue;
if( VSI_ISREG( sStatBuf.st_mode ) ) {
VSIUnlink( full_filename );
} else if( VSI_ISDIR( sStatBuf.st_mode ) ) {
msOGRCleanupDS( full_filename );
}
}
CSLDestroy( file_list );
VSIRmdir( path );
}
/************************************************************************/
/* msOGRSetPoints() */
/************************************************************************/
static void msOGRSetPoints( OGRGeometryH hGeom, lineObj *line, int bWant2DOutput)
{
int i;
if( bWant2DOutput )
{
for( i = 0; i < line->numpoints; i++ ) {
OGR_G_SetPoint_2D( hGeom, i,
line->point[i].x,
line->point[i].y );
}
}
else {
for( i = 0; i < line->numpoints; i++ ) {
OGR_G_SetPoint( hGeom, i,
line->point[i].x,
line->point[i].y,
line->point[i].z
);
}
}
}
/************************************************************************/
/* msOGRWriteShape() */
/************************************************************************/
static int msOGRWriteShape( OGRLayerH hOGRLayer,
shapeObj *shape, gmlItemListObj *item_list,
int nFirstOGRFieldIndex, const char *pszFeatureid,
bool geomTypeForced )
{
OGRGeometryH hGeom = NULL;
OGRFeatureH hFeat;
OGRErr eErr;
int i, out_field;
OGRwkbGeometryType eLayerGType, eFlattenLayerGType;
OGRFeatureDefnH hLayerDefn;
int bWant2DOutput;
hLayerDefn = OGR_L_GetLayerDefn( hOGRLayer );
eLayerGType = OGR_FD_GetGeomType(hLayerDefn);
eFlattenLayerGType = wkbFlatten(eLayerGType);
bWant2DOutput = (eLayerGType == eFlattenLayerGType);
/* -------------------------------------------------------------------- */
/* Transform point geometry. */
/* -------------------------------------------------------------------- */
if( shape->type == MS_SHAPE_POINT ) {
OGRGeometryH hMP = NULL;
int j;
if( shape->numlines == 1 && shape->line[0].numpoints > 1 )
{
hGeom = OGR_G_CreateGeometry( wkbMultiPoint );
for( j = 0; j < shape->line[0].numpoints; j++ ) {
OGRGeometryH hPoint = OGR_G_CreateGeometry( wkbPoint );
if( bWant2DOutput ) {
OGR_G_SetPoint_2D( hPoint, 0,
shape->line[0].point[j].x,
shape->line[0].point[j].y );
}
else {
OGR_G_SetPoint( hPoint, 0,
shape->line[0].point[j].x,
shape->line[0].point[j].y,
shape->line[0].point[j].z
);
}
OGR_G_AddGeometryDirectly( hGeom, hPoint );
}
}
else
{
if( shape->numlines > 1 )
hMP = OGR_G_CreateGeometry( wkbMultiPoint );
for( j = 0; j < shape->numlines; j++ ) {
if( shape->line[j].numpoints != 1 ) {
msSetError(MS_MISCERR,
"Failed on odd point geometry.",
"msOGRWriteShape()");
return MS_FAILURE;
}
hGeom = OGR_G_CreateGeometry( wkbPoint );
if( bWant2DOutput ) {
OGR_G_SetPoint_2D( hGeom, 0,
shape->line[j].point[0].x,
shape->line[j].point[0].y );
}
else {
OGR_G_SetPoint( hGeom, 0,
shape->line[j].point[0].x,
shape->line[j].point[0].y,
shape->line[j].point[0].z
);
}
if( hMP != NULL ) {
OGR_G_AddGeometryDirectly( hMP, hGeom );
}
}
if( hMP != NULL )
hGeom = hMP;
}
}
/* -------------------------------------------------------------------- */
/* Transform line geometry. */
/* -------------------------------------------------------------------- */
else if( shape->type == MS_SHAPE_LINE ) {
OGRGeometryH hML = NULL;
int j;
if( shape->numlines > 1 )
hML = OGR_G_CreateGeometry( wkbMultiLineString );
for( j = 0; j < shape->numlines; j++ ) {
if( shape->line[j].numpoints < 2 ) {
msSetError(MS_MISCERR,
"Failed on odd line geometry.",
"msOGRWriteShape()");
return MS_FAILURE;
}
hGeom = OGR_G_CreateGeometry( wkbLineString );
msOGRSetPoints( hGeom, &(shape->line[j]), bWant2DOutput);
if( hML != NULL ) {
OGR_G_AddGeometryDirectly( hML, hGeom );
hGeom = hML;
}
}
}
/* -------------------------------------------------------------------- */
/* Transform polygon geometry. */
/* -------------------------------------------------------------------- */
else if( shape->type == MS_SHAPE_POLYGON ) {
int iRing, iOuter;
int *outer_flags;
OGRGeometryH hMP = NULL;
outer_flags = msGetOuterList( shape );
for( iOuter = 0; iOuter < shape->numlines; iOuter++ ) {
int *inner_flags;
OGRGeometryH hRing;
if( !outer_flags[iOuter] )
continue;
if( hGeom != nullptr )
{
assert( hMP == nullptr );
hMP = OGR_G_CreateGeometry( wkbMultiPolygon );
OGR_G_AddGeometryDirectly( hMP, hGeom );
}
hGeom = OGR_G_CreateGeometry( wkbPolygon );
/* handle outer ring */
hRing = OGR_G_CreateGeometry( wkbLinearRing );
msOGRSetPoints( hRing, &(shape->line[iOuter]), bWant2DOutput);
OGR_G_AddGeometryDirectly( hGeom, hRing );
/* handle inner rings (holes) */
inner_flags = msGetInnerList( shape, iOuter, outer_flags );
for( iRing = 0; iRing < shape->numlines; iRing++ ) {
if( !inner_flags[iRing] )
continue;
hRing = OGR_G_CreateGeometry( wkbLinearRing );
msOGRSetPoints( hRing, &(shape->line[iRing]), bWant2DOutput);
OGR_G_AddGeometryDirectly( hGeom, hRing );
}
free(inner_flags);
if( hMP )
{
OGR_G_AddGeometryDirectly( hMP, hGeom );
hGeom = nullptr;
}
}
free(outer_flags);
if( hMP != nullptr )
{
assert( hGeom == nullptr );
hGeom = hMP;
}
}
/* -------------------------------------------------------------------- */
/* Consider trying to force the geometry to a new type if it */
/* doesn't match the layer. */
/* -------------------------------------------------------------------- */
if( hGeom != NULL ) {
OGRwkbGeometryType eFlattenFeatureGType =
wkbFlatten(OGR_G_GetGeometryType( hGeom ));
if( eFlattenFeatureGType != eFlattenLayerGType ) {
if( eFlattenLayerGType == wkbPolygon && geomTypeForced )
hGeom = OGR_G_ForceToPolygon( hGeom );
else if( eFlattenLayerGType == wkbMultiPolygon )
hGeom = OGR_G_ForceToMultiPolygon( hGeom );
else if( eFlattenLayerGType == wkbMultiPoint )
hGeom = OGR_G_ForceToMultiPoint( hGeom );
else if( eFlattenLayerGType == wkbMultiLineString )
hGeom = OGR_G_ForceToMultiLineString( hGeom );
}
}
/* -------------------------------------------------------------------- */
/* Consider flattening the geometry to 2D if we want 2D */
/* output. */
/* Note: this shouldn't be called in recent OGR versions where */
/* OGR_G_SetPoint_2D is properly honoured. */
/* -------------------------------------------------------------------- */
if( bWant2DOutput && hGeom != NULL ) {
OGRwkbGeometryType eFeatureGType = OGR_G_GetGeometryType( hGeom );
if( eFeatureGType != wkbFlatten(eFeatureGType) )
OGR_G_FlattenTo2D( hGeom );
}
/* -------------------------------------------------------------------- */
/* Create the feature, and attach the geometry. */
/* -------------------------------------------------------------------- */
hFeat = OGR_F_Create( hLayerDefn );
OGR_F_SetGeometryDirectly( hFeat, hGeom );
/* -------------------------------------------------------------------- */
/* Set attributes. */
/* -------------------------------------------------------------------- */
out_field = nFirstOGRFieldIndex;
for( i = 0; i < item_list->numitems; i++ ) {
gmlItemObj *item = item_list->items + i;
if(pszFeatureid && !strcmp(pszFeatureid, item->name)) {
char *endptr;
long feature_id = strtol(shape->values[i],&endptr,10);
if(endptr && *endptr==0) {
/* only set the featureid if it is numeric */
OGR_F_SetFID(hFeat, feature_id);
}
}
if( !item->visible )
continue;
/* Avoid setting empty strings for numeric fields, so that OGR */
/* doesn't take them as 0. (#4633) */
if( shape->values[i][0] == '\0' ) {
OGRFieldDefnH hFieldDefn = OGR_FD_GetFieldDefn(hLayerDefn, out_field);
OGRFieldType eFieldType = OGR_Fld_GetType(hFieldDefn);
if( eFieldType == OFTInteger || eFieldType == OFTReal
|| eFieldType == OFTInteger64
)
{
out_field++;
continue;
}
}
OGR_F_SetFieldString( hFeat, out_field++, shape->values[i] );
}
/* -------------------------------------------------------------------- */
/* Write out and cleanup. */
/* -------------------------------------------------------------------- */
eErr = OGR_L_CreateFeature( hOGRLayer, hFeat );
OGR_F_Destroy( hFeat );
if( eErr != OGRERR_NONE ) {
msSetError( MS_OGRERR,
"Attempt to write feature failed (code=%d):\n%s",
"msOGRWriteShape()",
(int) eErr,
CPLGetLastErrorMsg() );
}
if( eErr == OGRERR_NONE )
return MS_SUCCESS;
else
return MS_FAILURE;
}
/************************************************************************/
/* msOGRStdoutWriteFunction() */
/************************************************************************/
/* Used by /vsistdout/ */
static size_t msOGRStdoutWriteFunction(const void* ptr, size_t size, size_t nmemb, FILE* stream)
{
msIOContext *ioctx = (msIOContext*) stream;
return msIO_contextWrite(ioctx, ptr, size * nmemb ) / size;
}
/************************************************************************/
/* msOGROutputGetAdditonalFiles() */
/* */
/* Collect additional files specified in */
/* wfs/ows_additional_files_in_output of WEB.METADATA and LAYER.METADATA */
/************************************************************************/
/* Result to be freed with CSLDestroy() */
static char** msOGROutputGetAdditonalFiles( mapObj *map )
{
int i;
hashTableObj* hSetAdditionalFiles;
char** papszFiles = NULL;
hSetAdditionalFiles = msCreateHashTable();
for( i = -1; i < map->numlayers; i++ )
{
const char* value;
if( i < 0 )
{
value = msOWSLookupMetadata(&(map->web.metadata), "FO", "additional_files_in_output");
}
else
{
layerObj *layer = GET_LAYER(map, i);
if( !layer->resultcache || layer->resultcache->numresults == 0 )
continue;
value = msOWSLookupMetadata(&(layer->metadata), "FO", "additional_files_in_output");
}
if( value != NULL )
{
char** papszList = CSLTokenizeString2( value, ",", CSLT_HONOURSTRINGS );
char** papszListIter = papszList;
while( papszListIter && *papszListIter )
{
const char* file = *papszListIter;
VSIStatBufL sStat;
if( strncmp(file, "http://", strlen("http://")) == 0 ||
strncmp(file, "https://", strlen("https://")) == 0 )
{
/* Remote file ? We will use /vsicurl_streaming/ to read it */
if( msLookupHashTable(hSetAdditionalFiles, file) == NULL )
{
msInsertHashTable(hSetAdditionalFiles, file, "YES");
papszFiles = CSLAddString(papszFiles, CPLSPrintf("/vsicurl_streaming/%s", file));
}
}
else
{
int nLen = (int)strlen(file);
char filename[MS_MAXPATHLEN];
if( CPLIsFilenameRelative(file) )
{
if( !map->shapepath )
msTryBuildPath(filename, map->mappath, file);
else
msTryBuildPath3(filename, map->mappath, map->shapepath, file);
}
else
strlcpy(filename, file, MS_MAXPATHLEN);
if( nLen > 2 && (
strcmp(file + nLen - 1, "/") == 0 ||
strcmp(file + nLen - 2, "/*") == 0 ) )
{
*strrchr(filename, '/') = '\0';
}
else if( nLen > 2 && (
strcmp(file + nLen - 1, "\\") == 0 ||
strcmp(file + nLen - 2, "\\*") == 0 ) )
{
*strrchr(filename, '\\') = '\0';
}
if( msLookupHashTable(hSetAdditionalFiles, filename) == NULL )
{
msInsertHashTable(hSetAdditionalFiles, filename, "YES");
if( VSIStatL( filename, &sStat ) == 0 )
{
if( VSI_ISDIR( sStat.st_mode ) )
{
char** papszDirContent = msOGRRecursiveFileList(filename);
papszFiles = msCSLConcatenate(papszFiles, papszDirContent);
CSLDestroy(papszDirContent);
}
else
{
papszFiles = CSLAddString(papszFiles, filename);
}
}
else
{
msDebug("File %s does not exist.\n", filename);
}
}
}
papszListIter ++;
}
CSLDestroy(papszList);
}
}
msFreeHashTable(hSetAdditionalFiles);
return papszFiles;
}
/************************************************************************/
/* msOGRWriteFromQuery() */
/************************************************************************/
int msOGRWriteFromQuery( mapObj *map, outputFormatObj *format, int sendheaders )
{
/* -------------------------------------------------------------------- */
/* Variable declarations. */
/* -------------------------------------------------------------------- */
OGRSFDriverH hDriver;
OGRDataSourceH hDS;
const char *storage;
const char *fo_filename;
const char *form;
char datasource_name[MS_MAXPATHLEN];
char base_dir[MS_MAXPATHLEN];
char *request_dir = NULL;
char **ds_options = NULL;
char **layer_options = NULL;
char **file_list = NULL;
int iLayer, i;
int bDataSourceNameIsRequestDir = FALSE;
int bUseFeatureId = MS_FALSE;
const char* pszMatchingFeatures;
int nMatchingFeatures = -1;
const char* pszFormatName = format->driver+4;
pszMatchingFeatures = msGetOutputFormatOption(format, "_matching_features_", "");
if( pszMatchingFeatures[0] != '\0' )
nMatchingFeatures = atoi(pszMatchingFeatures);
/* -------------------------------------------------------------------- */
/* Fetch the output format driver. */
/* -------------------------------------------------------------------- */
msOGRInitialize();
hDriver = OGRGetDriverByName( pszFormatName );
if( hDriver == NULL ) {
msSetError( MS_MISCERR, "No OGR driver named `%s' available.",
"msOGRWriteFromQuery()", pszFormatName );
return MS_FAILURE;
}
/* -------------------------------------------------------------------- */
/* Capture datasource and layer creation options. */
/* -------------------------------------------------------------------- */
for( i=0; i < format->numformatoptions; i++ ) {
if( strncasecmp(format->formatoptions[i],"LCO:",4) == 0 )
layer_options = CSLAddString( layer_options,
format->formatoptions[i] + 4 );
if( strncasecmp(format->formatoptions[i],"DSCO:",5) == 0 )
ds_options = CSLAddString( ds_options,
format->formatoptions[i] + 5 );
}
if( EQUAL(pszFormatName, "GeoJSON") && nMatchingFeatures >= 0 )
{
const char* pszNativeData =
CSLFetchNameValueDef(layer_options, "NATIVE_DATA", "{}");
if( pszNativeData[strlen(pszNativeData)-1] == '}' )
{
std::string tmpl(pszNativeData);
tmpl.resize(tmpl.size() - 1);
if( strlen(pszNativeData) > 2 )
tmpl += ',';
tmpl += "\"numberMatched\":";
tmpl += std::to_string(nMatchingFeatures);
tmpl += '}';
layer_options = CSLSetNameValue(layer_options,
"NATIVE_MEDIA_TYPE",
"application/vnd.geo+json");
layer_options = CSLSetNameValue(layer_options,
"NATIVE_DATA",
tmpl.c_str());
}
}
if(!strcasecmp("true",msGetOutputFormatOption(format,"USE_FEATUREID","false"))) {
bUseFeatureId = MS_TRUE;
}
/* ==================================================================== */
/* Determine the output datasource name to use. */
/* ==================================================================== */
storage = msGetOutputFormatOption( format, "STORAGE", "filesystem" );
if( EQUAL(storage,"stream") && !msIO_isStdContext() ) {
msIOContext *ioctx = msIO_getHandler (stdout);
if( ioctx != NULL )
VSIStdoutSetRedirection( msOGRStdoutWriteFunction, (FILE*)ioctx );
else
/* bug #4858, streaming output won't work if standard output has been
* redirected, we switch to memory output in this case
*/
storage = "memory";
}
/* -------------------------------------------------------------------- */
/* Where are we putting stuff? */
/* -------------------------------------------------------------------- */
if( EQUAL(storage,"filesystem") ) {
base_dir[0] = '\0' ;
} else if( EQUAL(storage,"memory") ) {
strcpy( base_dir, "/vsimem/ogr_out/" );
} else if( EQUAL(storage,"stream") ) {
/* handled later */
} else {
msSetError( MS_MISCERR,
"STORAGE=%s value not supported.",
"msOGRWriteFromQuery()",
storage );
CSLDestroy(layer_options);
CSLDestroy(ds_options);
return MS_FAILURE;
}
/* -------------------------------------------------------------------- */
/* Create a subdirectory to handle this request. */
/* -------------------------------------------------------------------- */
if( !EQUAL(storage,"stream") ) {
const char* dir_to_create;
if (strlen(base_dir) > 0)
request_dir = msTmpFile(map, NULL, base_dir, "" );
else
request_dir = msTmpFile(map, NULL, NULL, "" );
if( request_dir[strlen(request_dir)-1] == '.' )
request_dir[strlen(request_dir)-1] = '\0';
dir_to_create = request_dir;
/* Workaround issue in GDAL versions released at this time :
* GDAL issue fixed per https://trac.osgeo.org/gdal/ticket/6991 */
if( EQUAL(storage,"memory") && EQUAL(format->driver+4, "ESRI Shapefile") )
{
dir_to_create = base_dir;
}
if( VSIMkdir( dir_to_create, 0777 ) != 0 ) {
msSetError( MS_MISCERR,
"Attempt to create directory '%s' failed.",
"msOGRWriteFromQuery()",
dir_to_create );
msFree(request_dir);
CSLDestroy(layer_options);
CSLDestroy(ds_options);
return MS_FAILURE;
}
}
/* else handled later */
/* -------------------------------------------------------------------- */
/* Setup the full datasource name. */
/* -------------------------------------------------------------------- */
form = msGetOutputFormatOption( format, "FORM", "zip" );
if( EQUAL(form,"zip") )
fo_filename = msGetOutputFormatOption( format, "FILENAME", "result.zip" );
else
fo_filename = msGetOutputFormatOption( format, "FILENAME", "result.dat" );
/* Validate that the filename does not contain any directory */
/* information, which might lead to removal of unwanted files. (#4086) */
if( strchr(fo_filename, '/') != NULL || strchr(fo_filename, ':') != NULL ||
strchr(fo_filename, '\\') != NULL ) {
msSetError( MS_MISCERR,
"Invalid value for FILENAME option. "
"It must not contain any directory information.",
"msOGRWriteFromQuery()" );
msFree(request_dir);
CSLDestroy(layer_options);
CSLDestroy(ds_options);
return MS_FAILURE;
}
if( !EQUAL(storage,"stream") )
{
msBuildPath( datasource_name, request_dir, fo_filename );
if( EQUAL(form,"zip") )
{
/* if generating a zip file, remove the zip extension for the internal */
/* filename */
if( EQUAL(CPLGetExtension(datasource_name), "zip") ) {
*strrchr(datasource_name, '.') = '\0';
}
/* and add .dat extension if user didn't provide another extension */
if( EQUAL(CPLGetExtension(datasource_name), "") ) {
strcat(datasource_name, ".dat");
}
}
/* Shapefile and MapInfo driver only properly work with multiple layers */
/* if the output dataset name is a directory */
if( EQUAL(format->driver+4, "ESRI Shapefile") ||
EQUAL(format->driver+4, "MapInfo File") )
{
bDataSourceNameIsRequestDir = TRUE;
strcpy(datasource_name, request_dir);
}
}
else
strcpy( datasource_name, "/vsistdout/" );
msFree( request_dir );
request_dir = NULL;
/* -------------------------------------------------------------------- */
/* Emit content type headers for stream output now. */
/* -------------------------------------------------------------------- */
if( EQUAL(storage,"stream") ) {
if( sendheaders && format->mimetype ) {
msIO_setHeader("Content-Type","%s",format->mimetype);
msIO_sendHeaders();
} else
msIO_fprintf( stdout, "%c", 10 );
}
/* ==================================================================== */
/* Create the datasource. */
/* ==================================================================== */
hDS = OGR_Dr_CreateDataSource( hDriver, datasource_name, ds_options );
CSLDestroy( ds_options );
if( hDS == NULL ) {
msOGRCleanupDS( datasource_name );
msSetError( MS_MISCERR,
"OGR CreateDataSource failed for '%s' with driver '%s'.",
"msOGRWriteFromQuery()",
datasource_name,
format->driver+4 );
CSLDestroy(layer_options);
return MS_FAILURE;
}
/* ==================================================================== */
/* Process each layer with a resultset. */
/* ==================================================================== */
for( iLayer = 0; iLayer < map->numlayers; iLayer++ ) {
int status = 0;
layerObj *layer = GET_LAYER(map, iLayer);
shapeObj resultshape;
OGRLayerH hOGRLayer;
OGRwkbGeometryType eGeomType;
OGRSpatialReferenceH srs = NULL;
gmlItemListObj *item_list = NULL;
const char *value;
char *pszWKT;
int nFirstOGRFieldIndex = -1;
const char *pszFeatureid = NULL;
if( !layer->resultcache )
continue;
/* -------------------------------------------------------------------- */
/* Will we need to reproject? */
/* -------------------------------------------------------------------- */
if(layer->transform == MS_TRUE)
layer->project = msProjectionsDiffer(&(layer->projection),
&(layer->map->projection));
/* -------------------------------------------------------------------- */
/* Establish the geometry type to use for the created layer. */
/* First we consult the wfs_geomtype field and fallback to */
/* deriving something from the type of the mapserver layer. */
/* -------------------------------------------------------------------- */
value = msOWSLookupMetadata(&(layer->metadata), "FOG", "geomtype");
bool geomTypeForced = true;
if( value == NULL ) {
geomTypeForced = false;
if( layer->type == MS_LAYER_POINT )
value = "Point";
else if( layer->type == MS_LAYER_LINE )
value = "LineString";
else if( layer->type == MS_LAYER_POLYGON )
value = "Polygon";
else
value = "Geometry";
}
if(bUseFeatureId)
pszFeatureid = msOWSLookupMetadata(&(layer->metadata), "FOG", "featureid");
if( strcasecmp(value,"Point") == 0 )
eGeomType = wkbPoint;
else if( strcasecmp(value,"LineString") == 0 )
eGeomType = wkbLineString;
else if( strcasecmp(value,"Polygon") == 0 )
eGeomType = wkbPolygon;
else if( strcasecmp(value,"MultiPoint") == 0 )
eGeomType = wkbMultiPoint;
else if( strcasecmp(value,"MultiLineString") == 0 )
eGeomType = wkbMultiLineString;
else if( strcasecmp(value,"MultiPolygon") == 0 )
eGeomType = wkbMultiPolygon;
else if( strcasecmp(value,"GeometryCollection") == 0 )
eGeomType = wkbGeometryCollection;
else if( strcasecmp(value,"Point25D") == 0 )
eGeomType = wkbPoint25D;
else if( strcasecmp(value,"LineString25D") == 0 )
eGeomType = wkbLineString25D;
else if( strcasecmp(value,"Polygon25D") == 0 )
eGeomType = wkbPolygon25D;
else if( strcasecmp(value,"MultiPoint25D") == 0 )
eGeomType = wkbMultiPoint25D;
else if( strcasecmp(value,"MultiLineString25D") == 0 )
eGeomType = wkbMultiLineString25D;
else if( strcasecmp(value,"MultiPolygon25D") == 0 )
eGeomType = wkbMultiPolygon25D;
else if( strcasecmp(value,"GeometryCollection25D") == 0 )
eGeomType = wkbGeometryCollection25D;
else if( strcasecmp(value,"Unknown") == 0
|| strcasecmp(value,"Geometry") == 0 )
eGeomType = wkbUnknown;
else if( strcasecmp(value,"None") == 0 )
eGeomType = wkbNone;
else
eGeomType = wkbUnknown;
/* -------------------------------------------------------------------- */
/* Create a spatial reference. */
/* -------------------------------------------------------------------- */
pszWKT = msProjectionObj2OGCWKT( &(map->projection) );
if( pszWKT != NULL ) {
srs = OSRNewSpatialReference( pszWKT );
msFree( pszWKT );
}
/* -------------------------------------------------------------------- */
/* Create the corresponding OGR Layer. */
/* -------------------------------------------------------------------- */
hOGRLayer = OGR_DS_CreateLayer( hDS, layer->name, srs, eGeomType,
layer_options );
if( hOGRLayer == NULL ) {
OGR_DS_Destroy( hDS );
msOGRCleanupDS( datasource_name );
msSetError( MS_MISCERR,
"OGR OGR_DS_CreateLayer failed for layer '%s' with driver '%s'.",
"msOGRWriteFromQuery()",
layer->name,
format->driver+4 );
CSLDestroy(layer_options);
return MS_FAILURE;
}
if( srs != NULL )
OSRRelease( srs );
/* -------------------------------------------------------------------- */
/* Create appropriate attributes on this layer. */
/* -------------------------------------------------------------------- */
item_list = msGMLGetItems( layer, "G" );
assert( item_list->numitems == layer->numitems );
for( i = 0; i < layer->numitems; i++ ) {
OGRFieldDefnH hFldDefn;
OGRErr eErr;
const char *name;
gmlItemObj *item = item_list->items + i;