GDALDataset *GDALWMSDataset::Open(GDALOpenInfo *poOpenInfo)
{
CPLXMLNode *config = NULL;
CPLErr ret = CE_None;
const char* pszFilename = poOpenInfo->pszFilename;
const char* pabyHeader = (const char *) poOpenInfo->pabyHeader;
if (poOpenInfo->nHeaderBytes == 0 &&
EQUALN(pszFilename, "<GDAL_WMS>", 10))
{
config = CPLParseXMLString(pszFilename);
}
else if (poOpenInfo->nHeaderBytes >= 10 &&
EQUALN(pabyHeader, "<GDAL_WMS>", 10))
{
config = CPLParseXMLFile(pszFilename);
}
else if (poOpenInfo->nHeaderBytes == 0 &&
(EQUALN(pszFilename, "WMS:http", 8) ||
EQUALN(pszFilename, "http", 4)) &&
strstr(pszFilename, "/MapServer?f=json") != NULL)
{
if (EQUALN(pszFilename, "WMS:http", 8))
pszFilename += 4;
CPLString osURL(pszFilename);
if (strstr(pszFilename, "&pretty=true") == NULL)
osURL += "&pretty=true";
CPLHTTPResult *psResult = CPLHTTPFetch(osURL.c_str(), NULL);
if (psResult == NULL)
return NULL;
if (psResult->pabyData == NULL)
{
CPLHTTPDestroyResult(psResult);
return NULL;
}
config = GDALWMSDatasetGetConfigFromArcGISJSON(osURL,
(const char*)psResult->pabyData);
CPLHTTPDestroyResult(psResult);
}
else if (poOpenInfo->nHeaderBytes == 0 &&
(EQUALN(pszFilename, "WMS:", 4) ||
CPLString(pszFilename).ifind("SERVICE=WMS") != std::string::npos))
{
CPLString osLayers = CPLURLGetValue(pszFilename, "LAYERS");
CPLString osRequest = CPLURLGetValue(pszFilename, "REQUEST");
if (osLayers.size() != 0)
config = GDALWMSDatasetGetConfigFromURL(poOpenInfo);
else if (EQUAL(osRequest, "GetTileService"))
return GDALWMSMetaDataset::DownloadGetTileService(poOpenInfo);
else
return GDALWMSMetaDataset::DownloadGetCapabilities(poOpenInfo);
}
else if (poOpenInfo->nHeaderBytes != 0 &&
(strstr(pabyHeader, "<WMT_MS_Capabilities") != NULL ||
strstr(pabyHeader, "<WMS_Capabilities") != NULL ||
strstr(pabyHeader, "<!DOCTYPE WMT_MS_Capabilities") != NULL))
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
GDALDataset* poRet = GDALWMSMetaDataset::AnalyzeGetCapabilities(psXML);
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<WMS_Tile_Service") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
GDALDataset* poRet = GDALWMSMetaDataset::AnalyzeGetTileService(psXML);
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<TileMap version=\"1.0.0\"") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
config = GDALWMSDatasetGetConfigFromTileMap(psXML);
CPLDestroyXMLNode( psXML );
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<Services") != NULL &&
strstr(pabyHeader, "<TileMapService version=\"1.0") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
CPLXMLNode* psRoot = CPLGetXMLNode( psXML, "=Services" );
GDALDataset* poRet = NULL;
if (psRoot)
{
CPLXMLNode* psTileMapService = CPLGetXMLNode(psRoot, "TileMapService");
if (psTileMapService)
{
const char* pszHref = CPLGetXMLValue(psTileMapService, "href", NULL);
if (pszHref)
{
poRet = (GDALDataset*) GDALOpen(pszHref, GA_ReadOnly);
}
}
}
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<TileMapService version=\"1.0.0\"") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
GDALDataset* poRet = GDALWMSMetaDataset::AnalyzeTileMapService(psXML);
CPLDestroyXMLNode( psXML );
return poRet;
}
else
return NULL;
if (config == NULL) return NULL;
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CPLDestroyXMLNode(config);
CPLError( CE_Failure, CPLE_NotSupported,
"The WMS driver does not support update access to existing"
" datasets.\n" );
return NULL;
}
GDALWMSDataset *ds = new GDALWMSDataset();
ret = ds->Initialize(config);
if (ret != CE_None) {
delete ds;
ds = NULL;
}
CPLDestroyXMLNode(config);
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
if (ds != NULL)
{
ds->SetMetadataItem( "INTERLEAVE", "PIXEL", "IMAGE_STRUCTURE" );
ds->SetDescription( poOpenInfo->pszFilename );
ds->TryLoadXML();
}
return ds;
}
GDALDataset *GDALWMSDataset::Open(GDALOpenInfo *poOpenInfo)
{
CPLXMLNode *config = NULL;
CPLErr ret = CE_None;
const char* pszFilename = poOpenInfo->pszFilename;
const char* pabyHeader = (const char *) poOpenInfo->pabyHeader;
if (poOpenInfo->nHeaderBytes == 0 &&
EQUALN(pszFilename, "<GDAL_WMS>", 10))
{
config = CPLParseXMLString(pszFilename);
}
else if (poOpenInfo->nHeaderBytes >= 10 &&
EQUALN(pabyHeader, "<GDAL_WMS>", 10))
{
config = CPLParseXMLFile(pszFilename);
}
else if (poOpenInfo->nHeaderBytes == 0 &&
(EQUALN(pszFilename, "WMS:http", 8) ||
EQUALN(pszFilename, "http", 4)) &&
strstr(pszFilename, "/MapServer?f=json") != NULL)
{
if (EQUALN(pszFilename, "WMS:http", 8))
pszFilename += 4;
CPLString osURL(pszFilename);
if (strstr(pszFilename, "&pretty=true") == NULL)
osURL += "&pretty=true";
CPLHTTPResult *psResult = CPLHTTPFetch(osURL.c_str(), NULL);
if (psResult == NULL)
return NULL;
if (psResult->pabyData == NULL)
{
CPLHTTPDestroyResult(psResult);
return NULL;
}
config = GDALWMSDatasetGetConfigFromArcGISJSON(osURL,
(const char*)psResult->pabyData);
CPLHTTPDestroyResult(psResult);
}
else if (poOpenInfo->nHeaderBytes == 0 &&
(EQUALN(pszFilename, "WMS:", 4) ||
CPLString(pszFilename).ifind("SERVICE=WMS") != std::string::npos))
{
CPLString osLayers = CPLURLGetValue(pszFilename, "LAYERS");
CPLString osRequest = CPLURLGetValue(pszFilename, "REQUEST");
if (osLayers.size() != 0)
config = GDALWMSDatasetGetConfigFromURL(poOpenInfo);
else if (EQUAL(osRequest, "GetTileService"))
return GDALWMSMetaDataset::DownloadGetTileService(poOpenInfo);
else
return GDALWMSMetaDataset::DownloadGetCapabilities(poOpenInfo);
}
else if (poOpenInfo->nHeaderBytes != 0 &&
(strstr(pabyHeader, "<WMT_MS_Capabilities") != NULL ||
strstr(pabyHeader, "<WMS_Capabilities") != NULL ||
strstr(pabyHeader, "<!DOCTYPE WMT_MS_Capabilities") != NULL))
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
GDALDataset* poRet = GDALWMSMetaDataset::AnalyzeGetCapabilities(psXML);
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<WMS_Tile_Service") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
GDALDataset* poRet = GDALWMSMetaDataset::AnalyzeGetTileService(psXML);
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<TileMap version=\"1.0.0\"") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
config = GDALWMSDatasetGetConfigFromTileMap(psXML);
CPLDestroyXMLNode( psXML );
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<Services") != NULL &&
strstr(pabyHeader, "<TileMapService version=\"1.0") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
CPLXMLNode* psRoot = CPLGetXMLNode( psXML, "=Services" );
GDALDataset* poRet = NULL;
if (psRoot)
{
CPLXMLNode* psTileMapService = CPLGetXMLNode(psRoot, "TileMapService");
if (psTileMapService)
{
const char* pszHref = CPLGetXMLValue(psTileMapService, "href", NULL);
if (pszHref)
{
poRet = (GDALDataset*) GDALOpen(pszHref, GA_ReadOnly);
}
}
}
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes != 0 &&
strstr(pabyHeader, "<TileMapService version=\"1.0.0\"") != NULL)
{
CPLXMLNode* psXML = CPLParseXMLFile(pszFilename);
if (psXML == NULL)
return NULL;
GDALDataset* poRet = GDALWMSMetaDataset::AnalyzeTileMapService(psXML);
CPLDestroyXMLNode( psXML );
return poRet;
}
else if (poOpenInfo->nHeaderBytes == 0 &&
EQUALN(pszFilename, "AGS:", 4))
{
return NULL;
}
else if (poOpenInfo->nHeaderBytes == 0 &&
EQUALN(pszFilename, "IIP:", 4))
{
CPLString osURL(pszFilename + 4);
osURL += "&obj=Basic-Info";
CPLHTTPResult *psResult = CPLHTTPFetch(osURL.c_str(), NULL);
if (psResult == NULL)
return NULL;
if (psResult->pabyData == NULL)
{
CPLHTTPDestroyResult(psResult);
return NULL;
}
int nXSize, nYSize;
const char* pszMaxSize = strstr((const char*)psResult->pabyData, "Max-size:");
const char* pszResolutionNumber = strstr((const char*)psResult->pabyData, "Resolution-number:");
if( pszMaxSize &&
sscanf(pszMaxSize + strlen("Max-size:"), "%d %d", &nXSize, &nYSize) == 2 &&
pszResolutionNumber )
{
int nResolutions = atoi(pszResolutionNumber + strlen("Resolution-number:"));
char* pszEscapedURL = CPLEscapeString(pszFilename + 4, -1, CPLES_XML);
CPLString osXML = CPLSPrintf(
"<GDAL_WMS>"
" <Service name=\"IIP\">"
" <ServerUrl>%s</ServerUrl>"
" </Service>"
" <DataWindow>"
" <SizeX>%d</SizeX>"
" <SizeY>%d</SizeY>"
" <TileLevel>%d</TileLevel>"
" </DataWindow>"
" <BlockSizeX>256</BlockSizeX>"
" <BlockSizeY>256</BlockSizeY>"
" <BandsCount>3</BandsCount>"
" <Cache />"
"</GDAL_WMS>",
pszEscapedURL,
nXSize, nYSize, nResolutions - 1);
config = CPLParseXMLString(osXML);
CPLFree(pszEscapedURL);
}
CPLHTTPDestroyResult(psResult);
}
else
return NULL;
if (config == NULL) return NULL;
/* -------------------------------------------------------------------- */
/* Confirm the requested access is supported. */
/* -------------------------------------------------------------------- */
if( poOpenInfo->eAccess == GA_Update )
{
CPLDestroyXMLNode(config);
CPLError( CE_Failure, CPLE_NotSupported,
"The WMS poDriver does not support update access to existing"
" datasets.\n" );
return NULL;
}
GDALWMSDataset *ds = new GDALWMSDataset();
ret = ds->Initialize(config);
if (ret != CE_None) {
delete ds;
ds = NULL;
}
CPLDestroyXMLNode(config);
/* -------------------------------------------------------------------- */
/* Initialize any PAM information. */
/* -------------------------------------------------------------------- */
if (ds != NULL)
{
ds->SetMetadataItem( "INTERLEAVE", "PIXEL", "IMAGE_STRUCTURE" );
ds->SetDescription( poOpenInfo->pszFilename );
ds->TryLoadXML();
}
return ds;
}