17823520225

Committed 18 Sep 2025 08:57AM UTC coverage: 41.442% (-0.02%) from 41.466%

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Use full path for CONFIG test

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/src/mapservutil.c

/******************************************************************************
 * $id$
 *
 * Project:  MapServer
 * Purpose:  MapServer CGI utility functions.
 * 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.
 ****************************************************************************/

#include "mapserver.h"
#include "apps/mapserv.h"
#include "maptime.h"
#include "mapows.h"
#include "mapogcapi.h"
#include "mapserv-index.h"

#include "cpl_conv.h"

#include "mapserver-config.h"

/*
** Enumerated types, keep the query modes in sequence and at the end of the
*enumeration (mode enumeration is in maptemplate.h).
*/
static const int numModes = 23;
static char *const modeStrings[23] = {"BROWSE",
                                      "ZOOMIN",
                                      "ZOOMOUT",
                                      "MAP",
                                      "LEGEND",
                                      "LEGENDICON",
                                      "REFERENCE",
                                      "SCALEBAR",
                                      "COORDINATE",
                                      "QUERY",
                                      "NQUERY",
                                      "ITEMQUERY",
                                      "ITEMNQUERY",
                                      "FEATUREQUERY",
                                      "FEATURENQUERY",
                                      "ITEMFEATUREQUERY",
                                      "ITEMFEATURENQUERY",
                                      "INDEXQUERY",
                                      "TILE",
                                      "OWS",
                                      "WFS",
                                      "MAPLEGEND",
                                      "MAPLEGENDICON"};

static int commonLoadForm(mapservObj *mapserv, mapObj *map);

void msCGIWriteError(mapservObj *mapserv) {
  errorObj *ms_error = msGetErrorObj();

  if (!ms_error || ms_error->code == MS_NOERR || ms_error->isreported) {
    /* either we have no error, or it was already reported by other means */
    return;
  }

  if (!mapserv || !mapserv->map) {
    if (CPLGetConfigOption("MS_ERROR_URL", NULL) != NULL) {
      msRedirect(CPLGetConfigOption("MS_ERROR_URL", NULL));
    } else {
      if (ms_error->http_status[0])
        msIO_setHeader("Status", "%s", ms_error->http_status);
      msIO_setHeader("Content-Type", "text/html");
      msIO_sendHeaders();
      msIO_printf("<HTML>\n");
      msIO_printf("<HEAD><TITLE>MapServer Message</TITLE></HEAD>\n");
      msIO_printf("<BODY BGCOLOR=\"#FFFFFF\">\n");
      msWriteErrorXML(stdout);
      msIO_printf("</BODY></HTML>");
    }
    return;
  }

  if ((ms_error->code == MS_NOTFOUND) &&
      (mapserv->map->web.empty != NULL ||
       CPLGetConfigOption("MS_EMPTY_URL", NULL) != NULL)) {
    const char *url = mapserv->map->web.empty; // takes precedence
    if (url == NULL)
      url = CPLGetConfigOption("MS_EMPTY_URL", NULL);
    msRedirect(url);
  } else if (mapserv->map->web.error != NULL ||
             CPLGetConfigOption("MS_ERROR_URL", NULL) != NULL) {
    const char *url = mapserv->map->web.error; // takes precedence
    if (url == NULL)
      url = CPLGetConfigOption("MS_ERROR_URL", NULL);
    msRedirect(url);
  } else {
    if (ms_error->http_status[0])
      msIO_setHeader("Status", "%s", ms_error->http_status);
    msIO_setHeader("Content-Type", "text/html");
    msIO_sendHeaders();
    msIO_printf("<HTML>\n");
    msIO_printf("<HEAD><TITLE>MapServer Message</TITLE></HEAD>\n");
    msIO_printf("<BODY BGCOLOR=\"#FFFFFF\">\n");
    msWriteErrorXML(stdout);
    msIO_printf("</BODY></HTML>");
  }

  return;
}

/*
** Converts a string (e.g. form parameter) to a double, first checking the
*format against
** a regular expression. returns an error if the format test fails.
*/

#define GET_NUMERIC(string, dbl)                                               \
  do {                                                                         \
    dbl = strtod((string), &strtoderr);                                        \
    if (*strtoderr) {                                                          \
      msSetError(MS_TYPEERR, NULL, "GET_NUMERIC()");                           \
      return MS_FAILURE;                                                       \
    }                                                                          \
  } while (0)

#define GET_NUMERIC_NO_ERROR(string, dbl) dbl = strtod((string), &strtoderr);

#define FREE_TOKENS_ON_ERROR(ntok)                                             \
  if (!strtoderr) {                                                            \
    msSetError(MS_TYPEERR, "invalid number", "msCGILoadForm()");               \
    msFreeCharArray(tokens, (ntok));                                           \
    return MS_FAILURE;                                                         \
  }

static void setClassGroup(layerObj *layer, char *classgroup) {
  int i;

  if (!layer || !classgroup)
    return;

  for (i = 0; i < layer->numclasses; i++) {
    if (layer->class[i] -> group && strcmp(layer->class[i] -> group,
                                           classgroup) == 0) {
      msFree(layer->classgroup);
      layer->classgroup = msStrdup(classgroup);
      return; /* bail */
    }
  }
}

/*
** Extract Map File name from params and load it.
** Returns map object or NULL on error.
*/
mapObj *msCGILoadMap(mapservObj *mapserv, configObj *config) {
  int i;
  mapObj *map = NULL;

  const char *ms_map_bad_pattern_default = "[/\\\\]{2}|[/\\\\]?\\.+[/\\\\]|,";

  int ms_mapfile_tainted = MS_TRUE;
  const char *ms_mapfile = CPLGetConfigOption("MS_MAPFILE", NULL);

  const char *ms_map_no_path = CPLGetConfigOption("MS_MAP_NO_PATH", NULL);
  const char *ms_map_pattern = CPLGetConfigOption("MS_MAP_PATTERN", NULL);

  const char *ms_map_bad_pattern =
      CPLGetConfigOption("MS_MAP_BAD_PATTERN", NULL);
  if (ms_map_bad_pattern == NULL)
    ms_map_bad_pattern = ms_map_bad_pattern_default;

  const char *map_value = NULL;

  // Determine if it is a WMS query so that errors emitted look for the
  // MS_WMS_ERROR_STATUS_CODE configuration option to determine if a HTTP
  // status must be emitted. Otherwise MS_HTTP_ERROR_STATUS_CODE is used.
  {
    int isWMS = MS_FALSE;
    for (i = 0; i < mapserv->request->NumParams; i++) {
      if (strcasecmp(mapserv->request->ParamNames[i], "SERVICE") == 0) {
        isWMS = strcasecmp(mapserv->request->ParamValues[i], "WMS") == 0;
        break;
      }
    }
    msSetErrorSetIsWMS(isWMS);
  }

  if (mapserv->request->api_path != NULL) {
    map_value = mapserv->request
                    ->api_path[0]; /* mapfile is *always* in the first position
                                      (/{mapfile}/{signature}) of an API call */
  } else {
    for (i = 0; i < mapserv->request->NumParams;
         i++) { /* find the map parameter */
      if (strcasecmp(mapserv->request->ParamNames[i], "map") == 0) {
        map_value = mapserv->request->ParamValues[i];
        break;
      }
    }
  }

  if (map_value == NULL) {
    if (ms_mapfile == NULL) {
      msSetErrorWithStatus(MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
                           "CGI variable \"map\" is not set.",
                           "msCGILoadMap()"); /* no default, outta here */
      return NULL;
    }
    ms_mapfile_tainted = MS_FALSE;
  } else {
    char pathBuf[MS_MAXPATHLEN];
    ms_mapfile = msConfigGetMap(
        config, map_value,
        pathBuf); /* does NOT check the environment, only the config */
    if (ms_mapfile) {
      ms_mapfile_tainted = MS_FALSE;
    } else {
      /* by now we know the map parameter isn't referencing something in the
       * configuration */
      if (ms_map_no_path != NULL) {
        msSetErrorWithStatus(
            MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
            "CGI variable \"map\" not found in configuration and this "
            "server is not configured for full paths.",
            "msCGILoadMap()");
        return NULL;
      }
      ms_mapfile = map_value;
    }
  }

  /* validate ms_mapfile if tainted */
  if (ms_mapfile_tainted == MS_TRUE) {
    if (ms_map_pattern == NULL) { // can't go any further, bail
      msSetErrorWithStatus(
          MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
          "Required configuration value MS_MAP_PATTERN not set.",
          "msCGILoadMap()");
      return NULL;
    }
    if (msIsValidRegex(ms_map_bad_pattern) == MS_FALSE ||
        msEvalRegex(ms_map_bad_pattern, ms_mapfile) == MS_TRUE) {
      msSetErrorWithStatus(MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
                           "CGI variable \"map\" fails to validate.",
                           "msCGILoadMap()");
      return NULL;
    }
    if (msEvalRegex(ms_map_pattern, ms_mapfile) != MS_TRUE) {
      msSetErrorWithStatus(MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
                           "CGI variable \"map\" fails to validate.",
                           "msCGILoadMap()");
      return NULL;
    }
  }

  /* ok to try to load now */
  map = msLoadMap(ms_mapfile, NULL, config);
  if (!map)
    return NULL;

  /* handle common parameters */
  if (commonLoadForm(mapserv, map) != MS_SUCCESS) {
    msFreeMap(map);
    return NULL;
  }

  if (!msLookupHashTable(&(map->web.validation), "immutable")) {
    /* check for any %variable% substitutions, we do this here so WMS/WFS  */
    /* services can take advantage of these "vendor specific" extensions */

    msApplySubstitutions(map, mapserv->request->ParamNames,
                         mapserv->request->ParamValues,
                         mapserv->request->NumParams);
    msApplyDefaultSubstitutions(map);

    /* check to see if a ogc map context is passed as argument. if there */
    /* is one load it */

    for (i = 0; i < mapserv->request->NumParams; i++) {
      if (strcasecmp(mapserv->request->ParamNames[i], "context") == 0) {
        if (mapserv->request->ParamValues[i] &&
            strlen(mapserv->request->ParamValues[i]) > 0) {
          if (strncasecmp(mapserv->request->ParamValues[i], "http", 4) == 0) {
            if (msGetConfigOption(map, "CGI_CONTEXT_URL"))
              msLoadMapContextURL(map, mapserv->request->ParamValues[i],
                                  MS_FALSE);
          } else {
            const char *map_context_filename = mapserv->request->ParamValues[i];
            const char *ms_context_pattern =
                CPLGetConfigOption("MS_CONTEXT_PATTERN", NULL);
            const char *ms_context_bad_pattern =
                CPLGetConfigOption("MS_CONTEXT_BAD_PATTERN", NULL);
            if (ms_context_bad_pattern == NULL)
              ms_context_bad_pattern = ms_map_bad_pattern_default;

            if (ms_context_pattern == NULL) { // can't go any further, bail
              msSetErrorWithStatus(
                  MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
                  "Required configuration value MS_CONTEXT_PATTERN not set.",
                  "msCGILoadMap()");
              msFreeMap(map);
              return NULL;
            }
            if (msIsValidRegex(ms_context_bad_pattern) == MS_FALSE ||
                msEvalRegex(ms_context_bad_pattern, map_context_filename) ==
                    MS_TRUE) {
              msSetErrorWithStatus(
                  MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
                  "CGI variable \"context\" fails to validate.",
                  "msCGILoadMap()");
              msFreeMap(map);
              return NULL;
            }
            if (msEvalRegex(ms_context_pattern, map_context_filename) !=
                MS_TRUE) {
              msSetErrorWithStatus(
                  MS_WEBERR, MS_HTTP_500_INTERNAL_SERVER_ERROR,
                  "CGI variable \"context\" fails to validate.",
                  "msCGILoadMap()");
              msFreeMap(map);
              return NULL;
            }
            msLoadMapContext(map, map_context_filename, MS_FALSE);
          }
        }
      }
    }
  }

  /*
   * RFC-42 HTTP Cookie Forwarding
   * Here we set the http_cookie_data metadata to handle the
   * HTTP Cookie Forwarding. The content of this metadata is the cookie
   * content. In the future, this metadata will probably be replaced
   * by an object that is part of the mapObject that would contain
   * information on the application status (such as cookie).
   */
  if (mapserv->request->httpcookiedata != NULL) {
    msInsertHashTable(&(map->web.metadata), "http_cookie_data",
                      mapserv->request->httpcookiedata);
  }

  return map;
}

/*
** Set operation mode. First look in MS_MODE env. var. as a
** default value that can be overridden by the mode=... CGI param.
** Returns silently, leaving mapserv->Mode unchanged if mode param not set.
*/
int msCGISetMode(mapservObj *mapserv) {
  const char *mode = NULL;
  int i, j;

  mode = CPLGetConfigOption("MS_MODE", NULL);
  for (i = 0; i < mapserv->request->NumParams; i++) {
    if (strcasecmp(mapserv->request->ParamNames[i], "mode") == 0) {
      mode = mapserv->request->ParamValues[i];
      break;
    }
  }

  if (mode) {
    for (j = 0; j < numModes; j++) {
      if (strcasecmp(mode, modeStrings[j]) == 0) {
        mapserv->Mode = j;
        break;
      }
    }

    if (j == numModes) {
      msSetError(MS_WEBERR, "Invalid mode.", "msCGISetMode()");
      return MS_FAILURE;
    }
  }

  if (mapserv->Mode >= 0) {
    int disabled = MS_FALSE;
    const char *enable_modes =
        msLookupHashTable(&mapserv->map->web.metadata, "ms_enable_modes");

    if (!msOWSParseRequestMetadata(enable_modes, mode, &disabled) && disabled) {
      /* the current mode is disabled */
      msSetError(MS_WEBERR,
                 "The specified mode '%s' is not supported by the current map "
                 "configuration",
                 "msCGISetMode()", mode);
      return MS_FAILURE;
    }
  }

  return MS_SUCCESS;
}

/*
** API-related functions.
*/
int msCGIIsAPIRequest(mapservObj *mapserv) {
  char **tmp_api_path = NULL;
  int i, n, tmp_api_path_length = 0;

  mapserv->request->path_info = getenv("PATH_INFO");
  if (mapserv->request->path_info != NULL &&
      strlen(mapserv->request->path_info) > 0) {
    tmp_api_path =
        msStringSplit(mapserv->request->path_info, '/',
                      &tmp_api_path_length); // ignores consecutive delimiters
    if (tmp_api_path_length >=
        2) { // we can access a mapfile by key using /{mapfile-key} so 2
             // components at a minimum (1st component is a zero-length string)

      // capture only non-zero length components
      n = 0;
      for (i = 0; i < tmp_api_path_length; i++) {
        if (strlen(tmp_api_path[i]) > 0)
          n++;
      }

      if (n < 1) { // we need at least a mapfile key for a legitimate request
        msFreeCharArray(tmp_api_path, tmp_api_path_length);
        return MS_FALSE;
      }

      mapserv->request->api_path = (char **)msSmallMalloc(sizeof(char *) * n);
      if (mapserv->request->api_path == NULL) {
        msFreeCharArray(tmp_api_path, tmp_api_path_length);
        return MS_FALSE;
      }

      mapserv->request->api_path_length = 0;
      for (i = 0; i < tmp_api_path_length; i++) {
        if (strlen(tmp_api_path[i]) > 0) {
          mapserv->request->api_path[mapserv->request->api_path_length] =
              msStrdup(tmp_api_path[i]);
          mapserv->request->api_path_length++;
        }
      }

      msFreeCharArray(tmp_api_path, tmp_api_path_length);
      return MS_TRUE;
    } else {
      msFreeCharArray(tmp_api_path, tmp_api_path_length);
    }
  }

  return MS_FALSE;
}

int msCGIDispatchAPIRequest(mapservObj *mapserv) {
  // should be a more elegant way to do this (perhaps similar to how drivers are
  // handled)
  if (strcmp("ogcapi", mapserv->request->api_path[1]) == 0) {
#ifdef USE_OGCAPI_SVR
    return msOGCAPIDispatchRequest(mapserv->map, mapserv->request);
#else
    msSetError(MS_OGCAPIERR, "OGC API server support is not enabled.",
               "msCGIDispatchAPIRequest()");
#endif
  } else {
    msSetError(MS_WEBERR, "Invalid API signature.",
               "msCGIDispatchAPIRequest()");
  }

  return MS_FAILURE;
}

/*
** Process common parameters that can apply to CGI and WxS calls - there are
*just a few and affect the mapObj directly.
*/
static int commonLoadForm(mapservObj *mapserv, mapObj *map) {
  double tmpval;
  char *strtoderr;

  if (!mapserv || !map)
    return MS_FAILURE;

  for (int i = 0; i < mapserv->request->NumParams; i++) {
    if (strlen(mapserv->request->ParamValues[i]) == 0)
      continue;

    if (strncasecmp(mapserv->request->ParamNames[i], "classgroup", 10) ==
        0) { /* #4207 */
      for (int j = 0; j < map->numlayers; j++) {
        setClassGroup(GET_LAYER(map, j), mapserv->request->ParamValues[i]);
      }
      continue;
    }

    /*
    ** For backwards compatibility. Might want to consider a vendor parameter
    *for WFS specifically and then deprecate this.
    */
    if (strcasecmp(mapserv->request->ParamNames[i], "map.extent") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "map_extent") == 0) {
      int n = 0;
      char **tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "commonLoadForm()");
        return MS_FAILURE;
      }

      if (n != 4) {
        msSetError(MS_WEBERR, "Not enough arguments for mapext.",
                   "commonLoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], map->extent.minx);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[1], map->extent.miny);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[2], map->extent.maxx);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[3], map->extent.maxy);
      FREE_TOKENS_ON_ERROR(4);

      msFreeCharArray(tokens, 4);

      if (!MS_VALID_EXTENT(map->extent)) {
        msSetError(MS_WEBERR,
                   "Supplied extent is invalid. Check that it is in the form: "
                   "minx, miny, maxx, maxy",
                   "commonLoadForm()");
        return (MS_FAILURE);
      }
    }

    /*
    ** For backwards compatibility - we don't use plain RESOLUTION here because
    *of a potential conflict WCS. Might want
    ** to consider a vendor parameter for WMS specifically and then deprecate
    *these.
    */
    if (strcasecmp(mapserv->request->ParamNames[i], "map.resolution") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "map_resolution") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], tmpval);
      if (tmpval < MS_RESOLUTION_MIN || tmpval > MS_RESOLUTION_MAX) {
        msSetError(MS_WEBERR, "Resolution value out of range.",
                   "commonLoadForm()");
        return MS_FAILURE;
      }
      map->resolution = (int)tmpval;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "keysize") ==
        0) { // legend keysize, used with legend-related outputs
      int n = 0;
      char **tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "commonLoadForm()");
        return MS_FAILURE;
      }

      if (n != 2) {
        msSetError(MS_WEBERR, "Not enough arguments for keysize.",
                   "commonLoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      map->legend.keysizex = (int)tmpval;
      GET_NUMERIC_NO_ERROR(tokens[1], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      map->legend.keysizey = (int)tmpval;

      msFreeCharArray(tokens, 2);

      if (map->legend.keysizex < MS_LEGEND_KEYSIZE_MIN ||
          map->legend.keysizex > MS_LEGEND_KEYSIZE_MAX ||
          map->legend.keysizey < MS_LEGEND_KEYSIZE_MIN ||
          map->legend.keysizey > MS_LEGEND_KEYSIZE_MAX) {
        msSetError(MS_WEBERR, "Legend keysize out of range.",
                   "commonLoadForm()");
        return MS_FAILURE;
      }

      continue;
    }
  }

  return MS_SUCCESS;
}

/*
** Process CGI parameters.
*/
int msCGILoadForm(mapservObj *mapserv) {
  int i, n;
  char **tokens = NULL;
  double tmpval;
  char *strtoderr;

  for (i = 0; i < mapserv->request->NumParams;
       i++) { /* now process the rest of the form variables */
    if (strlen(mapserv->request->ParamValues[i]) == 0)
      continue;

    if (strcasecmp(mapserv->request->ParamNames[i], "icon") == 0) {
      mapserv->icon = msStrdup(mapserv->request->ParamValues[i]);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "queryfile") == 0) {
      mapserv->QueryFile = msStrdup(mapserv->request->ParamValues[i]);
      if (msValidateParameter(
              mapserv->QueryFile,
              msLookupHashTable(&(mapserv->map->web.validation), "queryfile"),
              NULL, NULL, NULL) != MS_SUCCESS) {
        msSetError(MS_WEBERR, "Parameter 'queryfile' value fails to validate.",
                   "mapserv()");
        return MS_FAILURE;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "savequery") == 0) {
      mapserv->savequery = MS_TRUE;
      continue;
    }

    /* Insecure as implemented, need to save someplace non accessible by
       everyone in the universe
        if(strcasecmp(mapserv->request->ParamNames[i],"savemap") == 0) {
         mapserv->savemap = MS_TRUE;
         continue;
        }
    */

    if (strcasecmp(mapserv->request->ParamNames[i], "zoom") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->Zoom);
      if ((mapserv->Zoom > MAXZOOM) || (mapserv->Zoom < MINZOOM)) {
        msSetError(MS_WEBERR, "Zoom value out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "zoomdir") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], tmpval);
      mapserv->ZoomDirection = (int)tmpval;
      if ((mapserv->ZoomDirection != -1) && (mapserv->ZoomDirection != 1) &&
          (mapserv->ZoomDirection != 0)) {
        msSetError(MS_WEBERR, "Zoom direction must be 1, 0 or -1.",
                   "msCGILoadForm()");
        return MS_FAILURE;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "zoomsize") ==
        0) { /* absolute zoom magnitude */
      GET_NUMERIC(mapserv->request->ParamValues[i], tmpval);
      mapserv->ZoomSize = (int)tmpval;
      if ((mapserv->ZoomSize > MAXZOOM) || (mapserv->ZoomSize < 1)) {
        msSetError(MS_WEBERR, "Invalid zoom size.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "imgext") ==
        0) { /* extent of an existing image in a web application */
      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 4) {
        msSetError(MS_WEBERR, "Not enough arguments for imgext.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], mapserv->ImgExt.minx);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[1], mapserv->ImgExt.miny);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[2], mapserv->ImgExt.maxx);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[3], mapserv->ImgExt.maxy);
      FREE_TOKENS_ON_ERROR(4);

      msFreeCharArray(tokens, 4);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "searchmap") == 0) {
      mapserv->SearchMap = MS_TRUE;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "id") == 0) {
      if (msEvalRegex(IDPATTERN, mapserv->request->ParamValues[i]) ==
          MS_FALSE) {
        msSetError(MS_WEBERR, "Parameter 'id' value fails to validate.",
                   "msCGILoadForm()");
        return MS_FAILURE;
      }
      strlcpy(mapserv->Id, mapserv->request->ParamValues[i], IDSIZE);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "mapext") ==
        0) { /* extent of the new map or query */

      if (strncasecmp(mapserv->request->ParamValues[i], "shape", 5) == 0)
        mapserv->UseShapes = MS_TRUE;
      else {
        tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

        if (!tokens) {
          msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
          return MS_FAILURE;
        }

        if (n != 4) {
          msSetError(MS_WEBERR, "Not enough arguments for mapext.",
                     "msCGILoadForm()");
          msFreeCharArray(tokens, n);
          return MS_FAILURE;
        }

        GET_NUMERIC_NO_ERROR(tokens[0], mapserv->map->extent.minx);
        FREE_TOKENS_ON_ERROR(4);
        GET_NUMERIC_NO_ERROR(tokens[1], mapserv->map->extent.miny);
        FREE_TOKENS_ON_ERROR(4);
        GET_NUMERIC_NO_ERROR(tokens[2], mapserv->map->extent.maxx);
        FREE_TOKENS_ON_ERROR(4);
        GET_NUMERIC_NO_ERROR(tokens[3], mapserv->map->extent.maxy);
        FREE_TOKENS_ON_ERROR(4);

        msFreeCharArray(tokens, 4);

        /*
         * If there is a projection in the map file, and it is not lon/lat, and
         * the extents "look like" they *are* lon/lat, based on their size, then
         * convert the extents to the map file projection.
         *
         * DANGER: If the extents are legitimately in the mapfile projection
         *         and coincidentally fall in the lon/lat range, bad things
         *         will ensue.
         */
        if (mapserv->map->projection.proj &&
            !msProjIsGeographicCRS(&(mapserv->map->projection)) &&
            (mapserv->map->extent.minx >= -180.0 &&
             mapserv->map->extent.minx <= 180.0) &&
            (mapserv->map->extent.miny >= -90.0 &&
             mapserv->map->extent.miny <= 90.0) &&
            (mapserv->map->extent.maxx >= -180.0 &&
             mapserv->map->extent.maxx <= 180.0) &&
            (mapserv->map->extent.maxy >= -90.0 &&
             mapserv->map->extent.maxy <= 90.0)) {
          msProjectRect(&(mapserv->map->latlon), &(mapserv->map->projection),
                        &(mapserv->map->extent)); /* extent is a in lat/lon */
        }

        if ((mapserv->map->extent.minx != mapserv->map->extent.maxx) &&
            (mapserv->map->extent.miny !=
             mapserv->map->extent.maxy)) { /* extent seems ok */
          mapserv->CoordSource = FROMUSERBOX;
          mapserv->QueryCoordSource = FROMUSERBOX;
        }
      }

      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "minx") ==
        0) { /* extent of the new map, in pieces */
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->map->extent.minx);
      continue;
    }
    if (strcasecmp(mapserv->request->ParamNames[i], "maxx") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->map->extent.maxx);
      continue;
    }
    if (strcasecmp(mapserv->request->ParamNames[i], "miny") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->map->extent.miny);
      continue;
    }
    if (strcasecmp(mapserv->request->ParamNames[i], "maxy") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->map->extent.maxy);
      mapserv->CoordSource = FROMUSERBOX;
      mapserv->QueryCoordSource = FROMUSERBOX;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "mapxy") ==
        0) { /* user map coordinate */

      if (strncasecmp(mapserv->request->ParamValues[i], "shape", 5) == 0) {
        mapserv->UseShapes = MS_TRUE;
      } else {
        tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

        if (!tokens) {
          msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
          return MS_FAILURE;
        }

        if (n != 2) {
          msSetError(MS_WEBERR, "Not enough arguments for mapxy.",
                     "msCGILoadForm()");
          msFreeCharArray(tokens, n);
          return MS_FAILURE;
        }

        GET_NUMERIC_NO_ERROR(tokens[0], mapserv->mappnt.x);
        FREE_TOKENS_ON_ERROR(2);
        GET_NUMERIC_NO_ERROR(tokens[1], mapserv->mappnt.y);
        FREE_TOKENS_ON_ERROR(2);

        msFreeCharArray(tokens, 2);

        if (mapserv->map->projection.proj &&
            !msProjIsGeographicCRS(&(mapserv->map->projection)) &&
            (mapserv->mappnt.x >= -180.0 && mapserv->mappnt.x <= 180.0) &&
            (mapserv->mappnt.y >= -90.0 && mapserv->mappnt.y <= 90.0)) {
          msProjectPoint(&(mapserv->map->latlon), &(mapserv->map->projection),
                         &mapserv->mappnt); /* point is a in lat/lon */
        }

        if (mapserv->CoordSource == NONE) { /* don't override previous settings
                                               (i.e. buffer or scale ) */
          mapserv->CoordSource = FROMUSERPNT;
          mapserv->QueryCoordSource = FROMUSERPNT;
        }
      }
      continue;
    }

    /*
    ** Query shape consisting of map or image coordinates. It's almost identical
    *processing so we'll do either in this block...
    */
    if (strcasecmp(mapserv->request->ParamNames[i], "mapshape") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "imgshape") == 0) {
      if (strcasecmp(mapserv->request->ParamNames[i], "mapshape") == 0)
        mapserv->QueryCoordSource = FROMUSERSHAPE;
      else
        mapserv->QueryCoordSource = FROMIMGSHAPE;

      if (strchr(mapserv->request->ParamValues[i], '(') != NULL) { /* try WKT */
        if ((mapserv->map->query.shape =
                 msShapeFromWKT(mapserv->request->ParamValues[i])) == NULL) {
          msSetError(MS_WEBERR, "WKT parse failed for mapshape/imgshape.",
                     "msCGILoadForm()");
          return MS_FAILURE;
        }
      } else {
        lineObj line = {0, NULL};
        char **tmp = NULL;
        int n, j;

        tmp = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

        if (n % 2 != 0 || n < 8) { /* n must be even and be at least 8 */
          msSetError(MS_WEBERR,
                     "Malformed polygon geometry for mapshape/imgshape.",
                     "msCGILoadForm()");
          msFreeCharArray(tmp, n);
          return MS_FAILURE;
        }

        line.numpoints = n / 2;
        line.point =
            (pointObj *)msSmallMalloc(sizeof(pointObj) * line.numpoints);

        mapserv->map->query.shape = (shapeObj *)msSmallMalloc(sizeof(shapeObj));
        msInitShape(mapserv->map->query.shape);
        mapserv->map->query.shape->type = MS_SHAPE_POLYGON;

        for (j = 0; j < line.numpoints; j++) {
          line.point[j].x = atof(tmp[2 * j]);
          line.point[j].y = atof(tmp[2 * j + 1]);

          if (mapserv->QueryCoordSource == FROMUSERSHAPE &&
              mapserv->map->projection.proj &&
              !msProjIsGeographicCRS(&(mapserv->map->projection)) &&
              (line.point[j].x >= -180.0 && line.point[j].x <= 180.0) &&
              (line.point[j].y >= -90.0 && line.point[j].y <= 90.0)) {
            msProjectPoint(&(mapserv->map->latlon), &(mapserv->map->projection),
                           &line.point[j]); /* point is a in lat/lon */
          }
        }

        if (msAddLine(mapserv->map->query.shape, &line) == -1) {
          msFree(line.point);
          msFreeCharArray(tmp, n);
          return MS_FAILURE;
        }

        msFree(line.point);
        msFreeCharArray(tmp, n);
      }

      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "img.x") ==
        0) { /* mouse click, in pieces */
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->ImgPnt.x);
      if ((mapserv->ImgPnt.x > (2 * mapserv->map->maxsize)) ||
          (mapserv->ImgPnt.x < (-2 * mapserv->map->maxsize))) {
        msSetError(MS_WEBERR, "Coordinate out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->CoordSource = FROMIMGPNT;
      mapserv->QueryCoordSource = FROMIMGPNT;
      continue;
    }
    if (strcasecmp(mapserv->request->ParamNames[i], "img.y") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->ImgPnt.y);
      if ((mapserv->ImgPnt.y > (2 * mapserv->map->maxsize)) ||
          (mapserv->ImgPnt.y < (-2 * mapserv->map->maxsize))) {
        msSetError(MS_WEBERR, "Coordinate out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->CoordSource = FROMIMGPNT;
      mapserv->QueryCoordSource = FROMIMGPNT;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "imgxy") ==
        0) { /* mouse click, single variable */
      if (mapserv->CoordSource == FROMIMGPNT)
        continue;

      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 2) {
        msSetError(MS_WEBERR, "Not enough arguments for imgxy.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], mapserv->ImgPnt.x);
      FREE_TOKENS_ON_ERROR(2);
      GET_NUMERIC_NO_ERROR(tokens[1], mapserv->ImgPnt.y);
      FREE_TOKENS_ON_ERROR(2);

      msFreeCharArray(tokens, 2);

      if ((mapserv->ImgPnt.x > (2 * mapserv->map->maxsize)) ||
          (mapserv->ImgPnt.x < (-2 * mapserv->map->maxsize)) ||
          (mapserv->ImgPnt.y > (2 * mapserv->map->maxsize)) ||
          (mapserv->ImgPnt.y < (-2 * mapserv->map->maxsize))) {
        msSetError(MS_WEBERR, "Reference map coordinate out of range.",
                   "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (mapserv->CoordSource ==
          NONE) { /* override nothing since this parameter is usually used to
                     hold a default value */
        mapserv->CoordSource = FROMIMGPNT;
        mapserv->QueryCoordSource = FROMIMGPNT;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "imgbox") ==
        0) { /* selection box (eg. mouse drag) */
      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 4) {
        msSetError(MS_WEBERR, "Not enough arguments for imgbox.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], mapserv->ImgBox.minx);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[1], mapserv->ImgBox.miny);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[2], mapserv->ImgBox.maxx);
      FREE_TOKENS_ON_ERROR(4);
      GET_NUMERIC_NO_ERROR(tokens[3], mapserv->ImgBox.maxy);
      FREE_TOKENS_ON_ERROR(4);

      msFreeCharArray(tokens, 4);

      if ((mapserv->ImgBox.minx != mapserv->ImgBox.maxx) &&
          (mapserv->ImgBox.miny !=
           mapserv->ImgBox.maxy)) { /* must not degenerate into a point */
        mapserv->CoordSource = FROMIMGBOX;
        mapserv->QueryCoordSource = FROMIMGBOX;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "ref.x") ==
        0) { /* mouse click in reference image, in pieces */
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->RefPnt.x);
      if ((mapserv->RefPnt.x > (2 * mapserv->map->maxsize)) ||
          (mapserv->RefPnt.x < (-2 * mapserv->map->maxsize))) {
        msSetError(MS_WEBERR, "Coordinate out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->CoordSource = FROMREFPNT;
      continue;
    }
    if (strcasecmp(mapserv->request->ParamNames[i], "ref.y") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->RefPnt.y);
      if ((mapserv->RefPnt.y > (2 * mapserv->map->maxsize)) ||
          (mapserv->RefPnt.y < (-2 * mapserv->map->maxsize))) {
        msSetError(MS_WEBERR, "Coordinate out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->CoordSource = FROMREFPNT;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "refxy") ==
        0) { /* mouse click in reference image, single variable */
      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 2) {
        msSetError(MS_WEBERR, "Not enough arguments for imgxy.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], mapserv->RefPnt.x);
      FREE_TOKENS_ON_ERROR(2);
      GET_NUMERIC_NO_ERROR(tokens[1], mapserv->RefPnt.y);
      FREE_TOKENS_ON_ERROR(2);

      msFreeCharArray(tokens, 2);

      if ((mapserv->RefPnt.x > (2 * mapserv->map->maxsize)) ||
          (mapserv->RefPnt.x < (-2 * mapserv->map->maxsize)) ||
          (mapserv->RefPnt.y > (2 * mapserv->map->maxsize)) ||
          (mapserv->RefPnt.y < (-2 * mapserv->map->maxsize))) {
        msSetError(MS_WEBERR, "Reference map coordinate out of range.",
                   "msCGILoadForm()");
        return MS_FAILURE;
      }

      mapserv->CoordSource = FROMREFPNT;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "buffer") ==
        0) { /* radius (map units), actually 1/2 square side */
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->Buffer);
      mapserv->CoordSource = FROMBUF;
      mapserv->QueryCoordSource = FROMUSERPNT;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "scale") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "scaledenom") ==
            0) { /* scale for new map */
      GET_NUMERIC(mapserv->request->ParamValues[i], mapserv->ScaleDenom);
      if (mapserv->ScaleDenom <= 0) {
        msSetError(MS_WEBERR, "Scale out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->CoordSource = FROMSCALE;
      mapserv->QueryCoordSource = FROMUSERPNT;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "imgsize") ==
        0) { /* size of existing image (pixels) */
      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 2) {
        msSetError(MS_WEBERR, "Not enough arguments for imgsize.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      mapserv->ImgCols = (int)tmpval;
      GET_NUMERIC_NO_ERROR(tokens[1], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      mapserv->ImgRows = (int)tmpval;

      msFreeCharArray(tokens, 2);

      if (mapserv->ImgCols > mapserv->map->maxsize ||
          mapserv->ImgRows > mapserv->map->maxsize || mapserv->ImgCols <= 0 ||
          mapserv->ImgRows <= 0) {
        msSetError(MS_WEBERR, "Image size out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }

      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "resolution") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], tmpval);
      if (tmpval < MS_RESOLUTION_MIN || tmpval > MS_RESOLUTION_MAX) {
        msSetError(MS_WEBERR, "Resolution value out of range.",
                   "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->map->resolution = (int)tmpval;
      continue;
    }

    // map.imagetype and map_imagetype are for backwards compatibility and may
    // be removed in the future
    if (strcasecmp(mapserv->request->ParamNames[i], "imagetype") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "map.imagetype") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "map_imagetype") == 0) {

      const char *imagetype_validation_pattern =
          msLookupHashTable(&(mapserv->map->web.validation), "imagetype");
      if (imagetype_validation_pattern != NULL &&
          msEvalRegex(imagetype_validation_pattern,
                      mapserv->request->ParamValues[i]) !=
              MS_TRUE) { /* optional check */
        msSetError(MS_WEBERR, "Imagetype value fails to validate.",
                   "msCGILoadMap()");
        return MS_FAILURE;
      }

      outputFormatObj *format =
          msSelectOutputFormat(mapserv->map, mapserv->request->ParamValues[i]);
      if (format == NULL) {
        msSetError(MS_WEBERR, "Invalid imagetype value.\n", "msCGILoadForm()");
        return MS_FAILURE;
      } else {
        msFree((char *)mapserv->map->imagetype);
        mapserv->map->imagetype = msStrdup(mapserv->request->ParamValues[i]);
        msApplyOutputFormat(&(mapserv->map->outputformat), format,
                            MS_NOOVERRIDE);
      }
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "tilesize") ==
        0) { /* size of existing image (pixels) */
      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 2) {
        msSetError(MS_WEBERR, "Not enough arguments for tilesize.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      mapserv->TileWidth = (int)tmpval;
      GET_NUMERIC_NO_ERROR(tokens[1], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      mapserv->TileHeight = (int)tmpval;

      msFreeCharArray(tokens, 2);

      if (mapserv->TileWidth > mapserv->map->maxsize ||
          mapserv->TileHeight > mapserv->map->maxsize ||
          mapserv->TileWidth <= 0 || mapserv->TileHeight <= 0) {
        msSetError(MS_WEBERR, "Tile size out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }

      continue;
    }

    /* size of new map (pixels), map.size/map_size are included for backwards
     * compatibility and may be removed in future release */
    if (strcasecmp(mapserv->request->ParamNames[i], "mapsize") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "map.size") == 0 ||
        strcasecmp(mapserv->request->ParamNames[i], "map_size") == 0) {
      tokens = msStringSplit(mapserv->request->ParamValues[i], ' ', &n);

      if (!tokens) {
        msSetError(MS_MEMERR, NULL, "msCGILoadForm()");
        return MS_FAILURE;
      }

      if (n != 2) {
        msSetError(MS_WEBERR, "Not enough arguments for mapsize.",
                   "msCGILoadForm()");
        msFreeCharArray(tokens, n);
        return MS_FAILURE;
      }

      GET_NUMERIC_NO_ERROR(tokens[0], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      mapserv->map->width = (int)tmpval;
      GET_NUMERIC_NO_ERROR(tokens[1], tmpval);
      FREE_TOKENS_ON_ERROR(2);
      mapserv->map->height = (int)tmpval;

      msFreeCharArray(tokens, 2);

      if (mapserv->map->width > mapserv->map->maxsize ||
          mapserv->map->height > mapserv->map->maxsize ||
          mapserv->map->width <= 0 || mapserv->map->height <= 0) {
        msSetError(MS_WEBERR, "Image size out of range.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      continue;
    }

    if (strncasecmp(mapserv->request->ParamNames[i], "layers", 6) ==
        0) { /* turn a set of layers, delimited by spaces, on */

      /* If layers=all then turn on all layers */
      if (strcasecmp(mapserv->request->ParamValues[i], "all") == 0) {
        int l;

        /* Reset NumLayers=0. If individual layers were already selected then
         * free the previous values.  */
        for (l = 0; l < mapserv->NumLayers; l++)
          msFree(mapserv->Layers[l]);
        mapserv->NumLayers = 0;

        for (mapserv->NumLayers = 0;
             mapserv->NumLayers < mapserv->map->numlayers;
             mapserv->NumLayers++) {
          if (msGrowMapservLayers(mapserv) == MS_FAILURE)
            return MS_FAILURE;

          if (GET_LAYER(mapserv->map, mapserv->NumLayers)->name) {
            mapserv->Layers[mapserv->NumLayers] =
                msStrdup(GET_LAYER(mapserv->map, mapserv->NumLayers)->name);
          } else {
            mapserv->Layers[mapserv->NumLayers] = msStrdup("");
          }
        }
      } else {
        int num_layers = 0, l;
        char **layers = NULL;

        layers =
            msStringSplit(mapserv->request->ParamValues[i], ' ', &(num_layers));
        for (l = 0; l < num_layers; l++) {
          if (msGrowMapservLayers(mapserv) == MS_FAILURE) {
            msFreeCharArray(layers, num_layers);
            return MS_FAILURE;
          }
          mapserv->Layers[mapserv->NumLayers++] = msStrdup(layers[l]);
        }

        msFreeCharArray(layers, num_layers);
        num_layers = 0;
      }

      continue;
    }

    if (strncasecmp(mapserv->request->ParamNames[i], "layer", 5) ==
        0) { /* turn a single layer/group on */
      if (msGrowMapservLayers(mapserv) == MS_FAILURE)
        return MS_FAILURE;
      mapserv->Layers[mapserv->NumLayers] =
          msStrdup(mapserv->request->ParamValues[i]);
      mapserv->NumLayers++;
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "qlayer") ==
        0) { /* layer to query (i.e search) */
      mapserv->QueryLayer = msStrdup(mapserv->request->ParamValues[i]);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "qitem") ==
        0) { /* attribute to query on (optional) */
      mapserv->QueryItem = msStrdup(mapserv->request->ParamValues[i]);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "qstring") ==
        0) { /* attribute query string */
      mapserv->QueryString = msStrdup(mapserv->request->ParamValues[i]);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "qformat") ==
        0) { /* format to apply to query results (shortcut instead of having to
                use "map.web=QUERYFORMAT+foo") */
      if (mapserv->map->web.queryformat)
        free(mapserv->map->web.queryformat); /* avoid leak */
      mapserv->map->web.queryformat =
          msStrdup(mapserv->request->ParamValues[i]);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "slayer") ==
        0) { /* layer to select (for feature based search) */
      mapserv->SelectLayer = msStrdup(mapserv->request->ParamValues[i]);
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "shapeindex") ==
        0) { /* used for index queries */
      GET_NUMERIC(mapserv->request->ParamValues[i], tmpval);
      mapserv->ShapeIndex = (int)tmpval;
      continue;
    }
    if (strcasecmp(mapserv->request->ParamNames[i], "tileindex") == 0) {
      GET_NUMERIC(mapserv->request->ParamValues[i], tmpval);
      mapserv->TileIndex = (int)tmpval;
      continue;
    }

    /* --------------------------------------------------------------------
     *   The following code is used to support mode=tile
     * -------------------------------------------------------------------- */

    if (strcasecmp(mapserv->request->ParamNames[i], "tilemode") == 0) {
      /* currently, only valid tilemode is "spheremerc" */
      if (strcasecmp(mapserv->request->ParamValues[i], "gmap") == 0) {
        mapserv->TileMode = TILE_GMAP;
      } else if (strcasecmp(mapserv->request->ParamValues[i], "ve") == 0) {
        mapserv->TileMode = TILE_VE;
      } else {
        msSetError(MS_WEBERR, "Invalid tilemode. Use one of: gmap, ve",
                   "msCGILoadForm()");
        return MS_FAILURE;
      }
      continue;
    }

    if (strcasecmp(mapserv->request->ParamNames[i], "tile") == 0) {

      if (strlen(mapserv->request->ParamValues[i]) < 1) {
        msSetError(MS_WEBERR, "Empty tile parameter.", "msCGILoadForm()");
        return MS_FAILURE;
      }
      mapserv->CoordSource = FROMTILE;
      mapserv->TileCoords = msStrdup(mapserv->request->ParamValues[i]);

      continue;
    }

  } /* next parameter */

  if (mapserv->Mode == ZOOMIN) {
    mapserv->ZoomDirection = 1;
    mapserv->Mode = BROWSE;
  }
  if (mapserv->Mode == ZOOMOUT) {
    mapserv->ZoomDirection = -1;
    mapserv->Mode = BROWSE;
  }

  if (mapserv->ZoomSize !=
      0) { /* use direction and magnitude to calculate zoom */
    if (mapserv->ZoomDirection == 0) {
      mapserv->fZoom = 1;
    } else {
      mapserv->fZoom = mapserv->ZoomSize * mapserv->ZoomDirection;
      if (mapserv->fZoom < 0)
        mapserv->fZoom = 1.0 / MS_ABS(mapserv->fZoom);
    }
  } else { /* use single value for zoom */
    if ((mapserv->Zoom >= -1) && (mapserv->Zoom <= 1)) {
      mapserv->fZoom = 1; /* pan */
    } else {
      if (mapserv->Zoom < 0)
        mapserv->fZoom = 1.0 / MS_ABS(mapserv->Zoom);
      else
        mapserv->fZoom = mapserv->Zoom;
    }
  }

  if (mapserv->ImgRows == -1)
    mapserv->ImgRows = mapserv->map->height;
  if (mapserv->ImgCols == -1)
    mapserv->ImgCols = mapserv->map->width;
  if (mapserv->map->height == -1)
    mapserv->map->height = mapserv->ImgRows;
  if (mapserv->map->width == -1)
    mapserv->map->width = mapserv->ImgCols;
  return MS_SUCCESS;
}

int setExtentFromShapes(mapservObj *mapserv) {
  double dx, dy, cellsize;

  rectObj tmpext = {-1.0, -1.0, -1.0, -1.0};
  pointObj tmppnt = {-1.0, -1.0, -1.0, -1.0};

  msGetQueryResultBounds(mapserv->map, &(tmpext));

  dx = tmpext.maxx - tmpext.minx;
  dy = tmpext.maxy - tmpext.miny;

  tmppnt.x = (tmpext.maxx + tmpext.minx) / 2;
  tmppnt.y = (tmpext.maxy + tmpext.miny) / 2;
  tmpext.minx -= dx * EXTENT_PADDING / 2.0;
  tmpext.maxx += dx * EXTENT_PADDING / 2.0;
  tmpext.miny -= dy * EXTENT_PADDING / 2.0;
  tmpext.maxy += dy * EXTENT_PADDING / 2.0;

  if (mapserv->ScaleDenom !=
      0) { /* apply the scale around the center point (tmppnt) */
    cellsize = (mapserv->ScaleDenom / mapserv->map->resolution) /
               msInchesPerUnit(mapserv->map->units,
                               0); /* user supplied a point and a scale */
    tmpext.minx = tmppnt.x - cellsize * mapserv->map->width / 2.0;
    tmpext.miny = tmppnt.y - cellsize * mapserv->map->height / 2.0;
    tmpext.maxx = tmppnt.x + cellsize * mapserv->map->width / 2.0;
    tmpext.maxy = tmppnt.y + cellsize * mapserv->map->height / 2.0;
  } else if (mapserv->Buffer !=
             0) { /* apply the buffer around the center point (tmppnt) */
    tmpext.minx = tmppnt.x - mapserv->Buffer;
    tmpext.miny = tmppnt.y - mapserv->Buffer;
    tmpext.maxx = tmppnt.x + mapserv->Buffer;
    tmpext.maxy = tmppnt.y + mapserv->Buffer;
  }

  /* in case we don't get  usable extent at this point (i.e. single point
   * result) */
  if (!MS_VALID_EXTENT(tmpext)) {
    if (mapserv->map->web.minscaledenom >
        0) { /* try web object minscale first */
      cellsize = (mapserv->map->web.minscaledenom / mapserv->map->resolution) /
                 msInchesPerUnit(mapserv->map->units,
                                 0); /* user supplied a point and a scale */
      tmpext.minx = tmppnt.x - cellsize * mapserv->map->width / 2.0;
      tmpext.miny = tmppnt.y - cellsize * mapserv->map->height / 2.0;
      tmpext.maxx = tmppnt.x + cellsize * mapserv->map->width / 2.0;
      tmpext.maxy = tmppnt.y + cellsize * mapserv->map->height / 2.0;
    } else {
      msSetError(MS_WEBERR,
                 "No way to generate a valid map extent from selected shapes.",
                 "mapserv()");
      return MS_FAILURE;
    }
  }

  mapserv->mappnt = tmppnt;
  mapserv->map->extent = mapserv->RawExt = tmpext; /* save unadjusted extent */

  return MS_SUCCESS;
}

/* FIX: NEED ERROR CHECKING HERE FOR IMGPNT or MAPPNT */
void setCoordinate(mapservObj *mapserv) {
  double cellx, celly;

  cellx =
      MS_CELLSIZE(mapserv->ImgExt.minx, mapserv->ImgExt.maxx, mapserv->ImgCols);
  celly =
      MS_CELLSIZE(mapserv->ImgExt.miny, mapserv->ImgExt.maxy, mapserv->ImgRows);

  mapserv->mappnt.x =
      MS_IMAGE2MAP_X(mapserv->ImgPnt.x, mapserv->ImgExt.minx, cellx);
  mapserv->mappnt.y =
      MS_IMAGE2MAP_Y(mapserv->ImgPnt.y, mapserv->ImgExt.maxy, celly);

  return;
}

int msCGIDispatchBrowseRequest(mapservObj *mapserv) {
  char *template = NULL;
  int i, status;
  for (i = 0; i < mapserv->request->NumParams;
       i++) /* find the template param value */
    if (strcasecmp(mapserv->request->ParamNames[i], "template") == 0)
      template = mapserv->request->ParamValues[i];

  if ((!mapserv->map->web.template) &&
      (template == NULL || (strcasecmp(template, "openlayers") != 0))) {
    msSetError(MS_WEBERR,
               "Traditional BROWSE mode requires a TEMPLATE in the WEB "
               "section, but none was provided.",
               "mapserv()");
    return MS_FAILURE;
  }

  if (mapserv->QueryFile) {
    status = msLoadQuery(mapserv->map, mapserv->QueryFile);
    if (status != MS_SUCCESS)
      return MS_FAILURE;
  }

  status = setExtent(mapserv);
  if (status != MS_SUCCESS)
    return MS_FAILURE;
  status = checkWebScale(mapserv);
  if (status != MS_SUCCESS)
    return MS_FAILURE;

  /* -------------------------------------------------------------------- */
  /*      generate map, legend, scalebar and reference images.             */
  /* -------------------------------------------------------------------- */
  if (msGenerateImages(mapserv, MS_FALSE, MS_TRUE) != MS_SUCCESS)
    return MS_FAILURE;

  if ((template != NULL) && (strcasecmp(template, "openlayers") == 0)) {
    msIO_setHeader("Content-Type", "text/html");
    msIO_sendHeaders();
    if (msReturnOpenLayersPage(mapserv) != MS_SUCCESS)
      return MS_FAILURE;
  } else if (mapserv->QueryFile) {
    if (msReturnTemplateQuery(mapserv, mapserv->map->web.queryformat, NULL) !=
        MS_SUCCESS)
      return MS_FAILURE;
  } else {
    if (TEMPLATE_TYPE(mapserv->map->web.template) ==
        MS_FILE) { /* if thers's an html template, then use it */
      if (mapserv->sendheaders) {
        msIO_setHeader("Content-Type", "%s",
                       mapserv->map->web.browseformat); /* write MIME header */
        msIO_sendHeaders();
      }
      if (msReturnPage(mapserv, mapserv->map->web.template, BROWSE, NULL) !=
          MS_SUCCESS)
        return MS_FAILURE;
    } else {
      if (msReturnURL(mapserv, mapserv->map->web.template, BROWSE) !=
          MS_SUCCESS)
        return MS_FAILURE;
    }
  }
  return MS_SUCCESS;
}

int msCGIDispatchCoordinateRequest(mapservObj *mapserv) {
  setCoordinate(mapserv); /* mouse click => map coord */
  msIO_printf("Your \"<i>click</i>\" corresponds to (approximately): (%g, %g).",
              mapserv->mappnt.x, mapserv->mappnt.y);

  if (mapserv->map->projection.proj != NULL &&
      !msProjIsGeographicCRS(&(mapserv->map->projection))) {
    pointObj p = mapserv->mappnt;
    msProjectPoint(&(mapserv->map->projection), &(mapserv->map->latlon), &p);
    msIO_printf("Computed lat/lon value is (%g, %g).\n", p.x, p.y);
  }
  return MS_SUCCESS;
}

int msCGIDispatchQueryRequest(mapservObj *mapserv) {
  int status, i, j;
  char buffer[1024];
  if (mapserv->QueryFile) { /* already got a completed query */
    status = msLoadQuery(mapserv->map, mapserv->QueryFile);
    if (status != MS_SUCCESS)
      return MS_FAILURE;
  } else {

    if ((mapserv->QueryLayerIndex =
             msGetLayerIndex(mapserv->map, mapserv->QueryLayer)) !=
        -1) /* force the query layer on */
      GET_LAYER(mapserv->map, mapserv->QueryLayerIndex)->status = MS_ON;

    switch (mapserv->Mode) {
    case ITEMFEATUREQUERY:
    case ITEMFEATURENQUERY:
      if ((mapserv->SelectLayerIndex =
               msGetLayerIndex(mapserv->map, mapserv->SelectLayer)) ==
          -1) { /* force the selection layer on */
        msSetError(MS_WEBERR,
                   "Selection layer not set or references an invalid layer.",
                   "mapserv()");
        return MS_FAILURE;
      }
      GET_LAYER(mapserv->map, mapserv->SelectLayerIndex)->status = MS_ON;

      /* validate the qstring parameter */
      if (msValidateParameter(
              mapserv->QueryString,
              msLookupHashTable(
                  &(GET_LAYER(mapserv->map, mapserv->SelectLayerIndex)
                        ->validation),
                  "qstring"),
              msLookupHashTable(&(mapserv->map->web.validation), "qstring"),
              NULL, NULL) != MS_SUCCESS) {
        msSetError(MS_WEBERR, "Parameter 'qstring' value fails to validate.",
                   "mapserv()");
        return MS_FAILURE;
      }

      if (mapserv->QueryCoordSource != NONE && !mapserv->UseShapes)
        if (MS_SUCCESS != setExtent(mapserv)) /* set user area of interest */
          return MS_FAILURE;

      mapserv->map->query.type = MS_QUERY_BY_FILTER;
      if (mapserv->QueryItem)
        mapserv->map->query.filteritem = msStrdup(mapserv->QueryItem);
      if (mapserv->QueryString) {
        msInitExpression(&mapserv->map->query.filter);
        msLoadExpressionString(&mapserv->map->query.filter,
                               mapserv->QueryString);
      }

      mapserv->map->query.rect = mapserv->map->extent;

      mapserv->map->query.mode = MS_QUERY_MULTIPLE;
      if (mapserv->Mode == ITEMFEATUREQUERY)
        mapserv->map->query.mode = MS_QUERY_SINGLE;

      mapserv->map->query.layer = mapserv->QueryLayerIndex;
      mapserv->map->query.slayer =
          mapserv->SelectLayerIndex; /* this will trigger the feature query
                                        eventually */
      break;
    case FEATUREQUERY:
    case FEATURENQUERY:
      if ((mapserv->SelectLayerIndex =
               msGetLayerIndex(mapserv->map, mapserv->SelectLayer)) ==
          -1) { /* force the selection layer on */
        msSetError(MS_WEBERR,
                   "Selection layer not set or references an invalid layer.",
                   "mapserv()");
        return MS_FAILURE;
      }
      GET_LAYER(mapserv->map, mapserv->SelectLayerIndex)->status = MS_ON;

      if (mapserv->Mode == FEATUREQUERY) {
        switch (mapserv->QueryCoordSource) {
        case FROMIMGPNT:
          mapserv->map->extent =
              mapserv->ImgExt; /* use the existing map extent */
          setCoordinate(mapserv);
          break;
        case FROMUSERPNT:
          break;
        default:
          msSetError(
              MS_WEBERR,
              "No way to perform the initial search, not enough information.",
              "mapserv()");
          return MS_FAILURE;
          break;
        }

        mapserv->map->query.type = MS_QUERY_BY_POINT;
      } else { /* FEATURENQUERY */
        switch (mapserv->QueryCoordSource) {
        case FROMIMGPNT:
          mapserv->map->extent =
              mapserv->ImgExt; /* use the existing map extent */
          setCoordinate(mapserv);
          mapserv->map->query.type = MS_QUERY_BY_POINT;
          break;
        case FROMIMGBOX:
          /* TODO: this option was present but with no code to leverage the
           * image box... */
          break;
        case FROMUSERPNT:
          mapserv->map->query.type = MS_QUERY_BY_POINT;
          break;
        default:
          if (MS_SUCCESS != setExtent(mapserv)) {
            return MS_FAILURE;
          }
          mapserv->map->query.type = MS_QUERY_BY_RECT;
          break;
        }
      }

      mapserv->map->query.mode = MS_QUERY_MULTIPLE;

      mapserv->map->query.rect = mapserv->map->extent;
      mapserv->map->query.point = mapserv->mappnt;
      mapserv->map->query.buffer = mapserv->Buffer;

      mapserv->map->query.layer = mapserv->QueryLayerIndex;
      mapserv->map->query.slayer = mapserv->SelectLayerIndex;
      break;
    case ITEMQUERY:
    case ITEMNQUERY:
      if (mapserv->QueryLayerIndex < 0 ||
          mapserv->QueryLayerIndex >= mapserv->map->numlayers) {
        msSetError(MS_WEBERR,
                   "Query layer not set or references an invalid layer.",
                   "mapserv()");
        return MS_FAILURE;
      }

      /* validate the qstring parameter */
      if (msValidateParameter(
              mapserv->QueryString,
              msLookupHashTable(
                  &(GET_LAYER(mapserv->map, mapserv->QueryLayerIndex)
                        ->validation),
                  "qstring"),
              msLookupHashTable(&(mapserv->map->web.validation), "qstring"),
              NULL, NULL) != MS_SUCCESS) {
        msSetError(MS_WEBERR, "Parameter 'qstring' value fails to validate.",
                   "mapserv()");
        return MS_FAILURE;
      }

      if (mapserv->QueryCoordSource != NONE && !mapserv->UseShapes)
        if (MS_SUCCESS != setExtent(mapserv)) /* set user area of interest */
          return MS_FAILURE;

      mapserv->map->query.type = MS_QUERY_BY_FILTER;
      mapserv->map->query.layer = mapserv->QueryLayerIndex;
      if (mapserv->QueryItem)
        mapserv->map->query.filteritem = msStrdup(mapserv->QueryItem);
      if (mapserv->QueryString) {
        msInitExpression(&mapserv->map->query.filter);
        msLoadExpressionString(&mapserv->map->query.filter,
                               mapserv->QueryString);
      }

      mapserv->map->query.rect = mapserv->map->extent;

      mapserv->map->query.mode = MS_QUERY_MULTIPLE;
      if (mapserv->Mode == ITEMQUERY)
        mapserv->map->query.mode = MS_QUERY_SINGLE;
      break;
    case NQUERY:
      mapserv->map->query.mode =
          MS_QUERY_MULTIPLE; /* all of these cases return multiple results */
      mapserv->map->query.layer = mapserv->QueryLayerIndex;

      switch (mapserv->QueryCoordSource) {
      case FROMIMGPNT:
        setCoordinate(mapserv);

        if (mapserv->SearchMap) { /* compute new extent, pan etc then search
                                     that extent */
          if (MS_SUCCESS != setExtent(mapserv)) /* set user area of interest */
            return MS_FAILURE;
          mapserv->map->cellsize =
              msAdjustExtent(&(mapserv->map->extent), mapserv->map->width,
                             mapserv->map->height);
          if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                               mapserv->map->width, mapserv->map->height,
                               mapserv->map->resolution,
                               &mapserv->map->scaledenom) != MS_SUCCESS)
            return MS_FAILURE;
          mapserv->map->query.rect = mapserv->map->extent;
          mapserv->map->query.type = MS_QUERY_BY_RECT;
        } else {
          mapserv->map->extent =
              mapserv->ImgExt; /* use the existing image parameters */
          mapserv->map->width = mapserv->ImgCols;
          mapserv->map->height = mapserv->ImgRows;
          if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                               mapserv->map->width, mapserv->map->height,
                               mapserv->map->resolution,
                               &mapserv->map->scaledenom) != MS_SUCCESS)
            return MS_FAILURE;
          mapserv->map->query.point = mapserv->mappnt;
          mapserv->map->query.type = MS_QUERY_BY_POINT;
        }

        break;
      case FROMIMGBOX:
        if (mapserv->SearchMap) { /* compute new extent, pan etc then search
                                     that extent */
          setExtent(mapserv);
          if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                               mapserv->map->width, mapserv->map->height,
                               mapserv->map->resolution,
                               &mapserv->map->scaledenom) != MS_SUCCESS)
            return MS_FAILURE;
          mapserv->map->cellsize =
              msAdjustExtent(&(mapserv->map->extent), mapserv->map->width,
                             mapserv->map->height);
          mapserv->map->query.rect = mapserv->map->extent;
          mapserv->map->query.type = MS_QUERY_BY_RECT;
        } else {
          double cellx, celly;

          mapserv->map->extent =
              mapserv->ImgExt; /* use the existing image parameters */
          mapserv->map->width = mapserv->ImgCols;
          mapserv->map->height = mapserv->ImgRows;
          if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                               mapserv->map->width, mapserv->map->height,
                               mapserv->map->resolution,
                               &mapserv->map->scaledenom) != MS_SUCCESS)
            return MS_FAILURE;
          cellx = MS_CELLSIZE(
              mapserv->ImgExt.minx, mapserv->ImgExt.maxx,
              mapserv->ImgCols); /* calculate the new search extent */
          celly = MS_CELLSIZE(mapserv->ImgExt.miny, mapserv->ImgExt.maxy,
                              mapserv->ImgRows);
          mapserv->RawExt.minx =
              MS_IMAGE2MAP_X(mapserv->ImgBox.minx, mapserv->ImgExt.minx, cellx);
          mapserv->RawExt.maxx =
              MS_IMAGE2MAP_X(mapserv->ImgBox.maxx, mapserv->ImgExt.minx, cellx);
          mapserv->RawExt.maxy =
              MS_IMAGE2MAP_Y(mapserv->ImgBox.miny, mapserv->ImgExt.maxy,
                             celly); /* y's are flip flopped because img/map
                                        coordinate systems are */
          mapserv->RawExt.miny =
              MS_IMAGE2MAP_Y(mapserv->ImgBox.maxy, mapserv->ImgExt.maxy, celly);

          mapserv->map->query.rect = mapserv->RawExt;
          mapserv->map->query.type = MS_QUERY_BY_RECT;
        }
        break;
      case FROMIMGSHAPE:
        mapserv->map->extent =
            mapserv->ImgExt; /* use the existing image parameters */
        mapserv->map->width = mapserv->ImgCols;
        mapserv->map->height = mapserv->ImgRows;
        mapserv->map->cellsize = msAdjustExtent(
            &(mapserv->map->extent), mapserv->map->width, mapserv->map->height);
        if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                             mapserv->map->width, mapserv->map->height,
                             mapserv->map->resolution,
                             &mapserv->map->scaledenom) != MS_SUCCESS)
          return MS_FAILURE;

        /* convert from image to map coordinates here (see setCoordinate) */
        for (i = 0; i < mapserv->map->query.shape->numlines; i++) {
          for (j = 0; j < mapserv->map->query.shape->line[i].numpoints; j++) {
            mapserv->map->query.shape->line[i].point[j].x = MS_IMAGE2MAP_X(
                mapserv->map->query.shape->line[i].point[j].x,
                mapserv->map->extent.minx, mapserv->map->cellsize);
            mapserv->map->query.shape->line[i].point[j].y = MS_IMAGE2MAP_Y(
                mapserv->map->query.shape->line[i].point[j].y,
                mapserv->map->extent.maxy, mapserv->map->cellsize);
          }
        }

        mapserv->map->query.type = MS_QUERY_BY_SHAPE;
        break;
      case FROMUSERPNT:
        if (mapserv->Buffer == 0) { /* do a *pure* point query */
          mapserv->map->query.point = mapserv->mappnt;
          mapserv->map->query.type = MS_QUERY_BY_POINT;
          setExtent(mapserv);
        } else {
          setExtent(mapserv);
          if (mapserv->SearchMap) { /* the extent should be tied to a map, so we
                                       need to "adjust" it */
            if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                                 mapserv->map->width, mapserv->map->height,
                                 mapserv->map->resolution,
                                 &mapserv->map->scaledenom) != MS_SUCCESS)
              return MS_FAILURE;
            mapserv->map->cellsize =
                msAdjustExtent(&(mapserv->map->extent), mapserv->map->width,
                               mapserv->map->height);
          }
          mapserv->map->query.rect = mapserv->map->extent;
          mapserv->map->query.type = MS_QUERY_BY_RECT;
        }
        break;
      case FROMUSERSHAPE:
        setExtent(mapserv);
        mapserv->map->query.type = MS_QUERY_BY_SHAPE;
        break;
      default: /* from an extent of some sort */
        setExtent(mapserv);
        if (mapserv->SearchMap) { /* the extent should be tied to a map, so we
                                     need to "adjust" it */
          if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                               mapserv->map->width, mapserv->map->height,
                               mapserv->map->resolution,
                               &mapserv->map->scaledenom) != MS_SUCCESS)
            return MS_FAILURE;
          mapserv->map->cellsize =
              msAdjustExtent(&(mapserv->map->extent), mapserv->map->width,
                             mapserv->map->height);
        }

        mapserv->map->query.rect = mapserv->map->extent;
        mapserv->map->query.type = MS_QUERY_BY_RECT;
        break;
      }
      break;
    case QUERY:
      switch (mapserv->QueryCoordSource) {
      case FROMIMGPNT:
        setCoordinate(mapserv);
        mapserv->map->extent =
            mapserv->ImgExt; /* use the existing image parameters */
        mapserv->map->width = mapserv->ImgCols;
        mapserv->map->height = mapserv->ImgRows;
        if (msCalculateScale(mapserv->map->extent, mapserv->map->units,
                             mapserv->map->width, mapserv->map->height,
                             mapserv->map->resolution,
                             &mapserv->map->scaledenom) != MS_SUCCESS)
          return MS_FAILURE;
        break;
      case FROMUSERPNT: /* only a buffer makes sense, DOES IT? */
        if (setExtent(mapserv) != MS_SUCCESS)
          return MS_FAILURE;
        break;
      default:
        msSetError(MS_WEBERR,
                   "Query mode needs a point, imgxy and mapxy are not set.",
                   "mapserv()");
        return MS_FAILURE;
        break;
      }

      mapserv->map->query.type = MS_QUERY_BY_POINT;
      mapserv->map->query.mode = MS_QUERY_SINGLE;
      mapserv->map->query.layer = mapserv->QueryLayerIndex;
      mapserv->map->query.point = mapserv->mappnt;
      mapserv->map->query.buffer = mapserv->Buffer;
      break;
    case INDEXQUERY:
      mapserv->map->query.type = MS_QUERY_BY_INDEX;
      mapserv->map->query.mode = MS_QUERY_SINGLE;
      mapserv->map->query.layer = mapserv->QueryLayerIndex;
      mapserv->map->query.shapeindex = mapserv->ShapeIndex;
      mapserv->map->query.tileindex = mapserv->TileIndex;
      break;
    } /* end mode switch */

    /* finally execute the query */
    if (msExecuteQuery(mapserv->map) != MS_SUCCESS)
      return MS_FAILURE;

    /* catch empty result set when web->empty is set (#6907) */
    if (mapserv->map->web.empty != NULL ||
        CPLGetConfigOption("MS_EMPTY_URL", NULL) != NULL) {
      int empty = MS_TRUE;
      for (int i = 0; i < mapserv->map->numlayers; i++) { // count results
        if (mapserv->map->layers[i]->resultcache &&
            mapserv->map->layers[i]->resultcache->numresults > 0) {
          empty = MS_FALSE;
          break;
        }
      }
      if (empty == MS_TRUE) {
        /* note: this error message will not be displayed */
        msSetError(MS_NOTFOUND, "No matching record(s) found.",
                   "msCGIDispatchQueryRequest()");
        return MS_FAILURE;
      }
    }
  }

  if (mapserv->map->querymap.width > 0 &&
      mapserv->map->querymap.width <= mapserv->map->maxsize)
    mapserv->map->width =
        mapserv->map->querymap.width; /* make sure we use the right size */
  if (mapserv->map->querymap.height > 0 &&
      mapserv->map->querymap.height <= mapserv->map->maxsize)
    mapserv->map->height = mapserv->map->querymap.height;

  if (mapserv->UseShapes)
    if (MS_SUCCESS != setExtentFromShapes(mapserv))
      return MS_FAILURE;

  if (msReturnTemplateQuery(mapserv, mapserv->map->web.queryformat, NULL) !=
      MS_SUCCESS)
    return MS_FAILURE;

  if (mapserv->savequery) {
    snprintf(buffer, sizeof(buffer), "%s%s%s%s", mapserv->map->web.imagepath,
             mapserv->map->name, mapserv->Id, MS_QUERY_EXTENSION);
    if ((status = msSaveQuery(mapserv->map, buffer, MS_FALSE)) != MS_SUCCESS)
      return status;
  }
  return MS_SUCCESS;
}

int msCGIDispatchImageRequest(mapservObj *mapserv) {
  int status;
  imageObj *img = NULL;
  switch (mapserv->Mode) {
  case MAP:
    if (mapserv->QueryFile) {
      status = msLoadQuery(mapserv->map, mapserv->QueryFile);
      if (status != MS_SUCCESS)
        return MS_FAILURE;
      img = msDrawMap(mapserv->map, MS_TRUE);
    } else
      img = msDrawMap(mapserv->map, MS_FALSE);
    break;
  case REFERENCE:
    mapserv->map->cellsize = msAdjustExtent(
        &(mapserv->map->extent), mapserv->map->width, mapserv->map->height);
    img = msDrawReferenceMap(mapserv->map);
    break;
  case SCALEBAR:
    img = msDrawScalebar(mapserv->map);
    break;
  case TILE:
    msTileSetExtent(mapserv);

    if (!strcmp(MS_IMAGE_MIME_TYPE(mapserv->map->outputformat),
                "application/vnd.mapbox-vector-tile") ||
        !strcmp(MS_IMAGE_MIME_TYPE(mapserv->map->outputformat),
                "application/x-protobuf")) {
      if (msMVTWriteTile(mapserv->map, mapserv->sendheaders) != MS_SUCCESS)
        return MS_FAILURE;
      return MS_SUCCESS;
    }

    img = msTileDraw(mapserv);
    break;
  case LEGEND:
  case MAPLEGEND:
    img = msDrawLegend(mapserv->map, MS_FALSE, mapserv->hittest);
    break;
  default:
    msSetError(MS_CGIERR, "Invalid CGI mode", "msCGIDispatchImageRequest()");
    break;
  }

  if (!img)
    return MS_FAILURE;

  /*
   ** Set the Cache control headers if the option is set.
   */
  if (mapserv->sendheaders &&
      msLookupHashTable(&(mapserv->map->web.metadata), "http_max_age")) {
    msIO_setHeader(
        "Cache-Control", "max-age=%s",
        msLookupHashTable(&(mapserv->map->web.metadata), "http_max_age"));
  }

  if (mapserv->sendheaders) {
    const char *attachment =
        msGetOutputFormatOption(mapserv->map->outputformat, "ATTACHMENT", NULL);
    if (attachment)
      msIO_setHeader("Content-disposition", "attachment; filename=%s",
                     attachment);

    if (!strcmp(MS_IMAGE_MIME_TYPE(mapserv->map->outputformat),
                "application/json")) {
      msIO_setHeader("Content-Type", "application/json; charset=utf-8");
    } else {
      msIO_setHeader("Content-Type", "%s",
                     MS_IMAGE_MIME_TYPE(mapserv->map->outputformat));
    }
    msIO_sendHeaders();
  }

  if (mapserv->Mode == MAP || mapserv->Mode == TILE)
    status = msSaveImage(mapserv->map, img, NULL);
  else
    status = msSaveImage(NULL, img, NULL);

  if (status != MS_SUCCESS)
    return MS_FAILURE;

  msFreeImage(img);
  return MS_SUCCESS;
}

int msCGIDispatchLegendRequest(mapservObj *mapserv) {
  int status;
  if (mapserv->Mode == MAPLEGEND) {
    if (setExtent(mapserv) != MS_SUCCESS)
      return MS_FAILURE;
    if (checkWebScale(mapserv) != MS_SUCCESS)
      return MS_FAILURE;
    mapserv->hittest = msSmallMalloc(sizeof(map_hittest));
    initMapHitTests(mapserv->map, mapserv->hittest);
    status = msHitTestMap(mapserv->map, mapserv->hittest);
    if (status != MS_SUCCESS)
      return MS_FAILURE;
  }
  if (mapserv->map->legend.template) {
    char *legendTemplate;
    legendTemplate = generateLegendTemplate(mapserv);
    if (legendTemplate) {
      if (mapserv->sendheaders) {
        msIO_setHeader("Content-Type", "%s", mapserv->map->web.legendformat);
        msIO_sendHeaders();
      }
      msIO_fwrite(legendTemplate, strlen(legendTemplate), 1, stdout);

      free(legendTemplate);
      return MS_SUCCESS;
    } else { /* error already generated by (generateLegendTemplate()) */
      return MS_FAILURE;
    }
  } else {
    return msCGIDispatchImageRequest(mapserv);
  }
}

int msCGIDispatchLegendIconRequest(mapservObj *mapserv) {
  char **tokens = NULL;
  int numtokens = 0;
  int layerindex = -1, classindex = 0, status;
  outputFormatObj *format = NULL;
  imageObj *img = NULL;

  /* TODO: do we want to set scale here? */

  /* do we have enough information */
  if (!mapserv->icon) {
    msSetError(MS_WEBERR, "Mode=LEGENDICON requires an icon parameter.",
               "mapserv()");
    return MS_FAILURE;
  }

  /* process the icon definition */
  tokens = msStringSplit(mapserv->icon, ',', &numtokens);

  if (numtokens != 1 && numtokens != 2) {
    msSetError(MS_WEBERR,
               "%d Malformed icon parameter, should be 'layer,class' or just "
               "'layer' if the layer has only 1 class defined.",
               "mapserv()", numtokens);
    status = MS_FAILURE;
    goto li_cleanup;
  }

  if ((layerindex = msGetLayerIndex(mapserv->map, tokens[0])) == -1) {
    msSetError(MS_WEBERR, "Icon layer=%s not found in mapfile.", "mapserv()",
               tokens[0]);
    status = MS_FAILURE;
    goto li_cleanup;
  }

  if (numtokens == 2) { /* check the class index */
    classindex = atoi(tokens[1]);
    if (classindex < 0 ||
        classindex >= GET_LAYER(mapserv->map, layerindex)->numclasses) {
      msSetError(MS_WEBERR, "Icon class=%d not found in layer=%s.", "mapserv()",
                 classindex, GET_LAYER(mapserv->map, layerindex)->name);
      status = MS_FAILURE;
      goto li_cleanup;
    }
  }

  if (mapserv->Mode == MAPLEGENDICON) {
    if (setExtent(mapserv) != MS_SUCCESS) {
      status = MS_FAILURE;
      goto li_cleanup;
    }
    if (checkWebScale(mapserv) != MS_SUCCESS) {
      status = MS_FAILURE;
      goto li_cleanup;
    }
    mapserv->hittest = msSmallMalloc(sizeof(map_hittest));
    initMapHitTests(mapserv->map, mapserv->hittest);
    status = msHitTestLayer(mapserv->map, GET_LAYER(mapserv->map, layerindex),
                            &mapserv->hittest->layerhits[layerindex]);
    if (status != MS_SUCCESS)
      goto li_cleanup;
  }

  /* ensure we have an image format representing the options for the legend. */
  msApplyOutputFormat(&format, mapserv->map->outputformat,
                      mapserv->map->legend.transparent);

  /* initialize the legend image */
  if (!MS_RENDERER_PLUGIN(format)) {
    msSetError(MS_RENDERERERR, "unsupported renderer for legend icon",
               "mapserv main()");
    status = MS_FAILURE;
    goto li_cleanup;
  }
  img = msImageCreate(mapserv->map->legend.keysizex,
                      mapserv->map->legend.keysizey, format,
                      mapserv->map->web.imagepath, mapserv->map->web.imageurl,
                      mapserv->map->resolution, mapserv->map->defresolution,
                      &(mapserv->map->legend.imagecolor));
  if (!img) {
    status = MS_FAILURE;
    goto li_cleanup;
  }
  img->map = mapserv->map;

  /* drop this reference to output format */
  msApplyOutputFormat(&format, NULL, MS_NOOVERRIDE);

  if (msDrawLegendIcon(mapserv->map, GET_LAYER(mapserv->map, layerindex),
                       GET_LAYER(mapserv->map, layerindex)->class[classindex],
                       mapserv -> map -> legend.keysizex,
                       mapserv->map->legend.keysizey, img, 0, 0, MS_TRUE,
                       ((mapserv->hittest)
                            ? (&mapserv->hittest->layerhits[layerindex]
                                    .classhits[classindex])
                            : (NULL))) != MS_SUCCESS) {
    status = MS_FAILURE;
    goto li_cleanup;
  }

  if (mapserv->sendheaders) {
    msIO_setHeader("Content-Type", "%s",
                   MS_IMAGE_MIME_TYPE(mapserv->map->outputformat));
    msIO_sendHeaders();
  }
  /*
   ** Set the Cache control headers if the option is set.
   */
  if (mapserv->sendheaders &&
      msLookupHashTable(&(mapserv->map->web.metadata), "http_max_age")) {
    msIO_printf(
        "Cache-Control: max-age=%s%c",
        msLookupHashTable(&(mapserv->map->web.metadata), "http_max_age"), 10);
  }

  status = msSaveImage(NULL, img, NULL);

li_cleanup:
  msFreeCharArray(tokens, numtokens);
  msFreeImage(img);
  return status;
}

int msCGIDispatchRequest(mapservObj *mapserv) {
  int i;
  int status;

  /*
   ** Determine 'mode': Check for MS_MODE env. var. and mode=... CGI param
   */
  mapserv->Mode = -1; /* Not set */
  if (msCGISetMode(mapserv) != MS_SUCCESS) {
    return MS_FAILURE;
  }

  /*
   ** Start by calling the WMS/WFS/WCS Dispatchers.  If they fail then we'll
   ** process this as a regular MapServer request.
   */
  if ((mapserv->Mode == -1 || mapserv->Mode == OWS || mapserv->Mode == WFS) &&
      (status = msOWSDispatch(mapserv->map, mapserv->request, mapserv->Mode)) !=
          MS_DONE) {
    /*
     ** OWSDispatch returned either MS_SUCCESS or MS_FAILURE
     */
    if (status == MS_FAILURE) {
      return MS_FAILURE;
    }

    if (status == MS_SUCCESS &&
        strcasecmp(mapserv->map->imagetype, "application/openlayers") == 0) {
      char *service = NULL;
      for (i = 0; i < mapserv->request->NumParams; i++) {
        if (strcasecmp(mapserv->request->ParamNames[i], "SERVICE") == 0) {
          service = mapserv->request->ParamValues[i];
          break;
        }
      }
      if (service && strcasecmp(service, "WMS") == 0) {
        if (mapserv->sendheaders) {
          msIO_setHeader("Content-Type", "text/html");
          msIO_sendHeaders();
        }

        if (msReturnOpenLayersPage(mapserv) != MS_SUCCESS)
          return MS_FAILURE;
      }
    }
    return MS_SUCCESS;
  } /* done OGC/OWS case */

  /*
  ** Do "traditional" mode processing.
  */
  if (mapserv->Mode == -1)
    mapserv->Mode = BROWSE;

  if (MS_SUCCESS != msCGILoadForm(mapserv)) {
    return MS_FAILURE;
  }

  /* Insecure as implemented, need to save someplace non accessible by everyone
     in the universe if(mapserv->savemap) { snprintf(buffer, sizeof(buffer),
     "%s%s%s.map", mapserv->map->web.imagepath, mapserv->map->name,
     mapserv->Id); if(msSaveMap(mapserv->map, buffer) == -1) return MS_FAILURE;
      }
  */

  if ((mapserv->CoordSource == FROMIMGPNT) ||
      (mapserv->CoordSource == FROMIMGBOX)) /* make sure extent of existing
                                               image matches shape of image */
    mapserv->map->cellsize =
        msAdjustExtent(&mapserv->ImgExt, mapserv->ImgCols, mapserv->ImgRows);

  /*
  ** For each layer let's set layer status
  */
  for (i = 0; i < mapserv->map->numlayers; i++) {
    if ((GET_LAYER(mapserv->map, i)->status != MS_DEFAULT)) {
      if (isOn(mapserv, GET_LAYER(mapserv->map, i)->name,
               GET_LAYER(mapserv->map, i)->group) ==
          MS_TRUE) /* Set layer status */
        GET_LAYER(mapserv->map, i)->status = MS_ON;
      else
        GET_LAYER(mapserv->map, i)->status = MS_OFF;
    }
  }

  if (mapserv->CoordSource ==
      FROMREFPNT) /* force browse mode if the reference coords are set */
    mapserv->Mode = BROWSE;

  if (mapserv->Mode == TILE) {
    /*
     ** Tile mode:
     ** Set the projection up and test the parameters for legality.
     */
    if (msTileSetup(mapserv) != MS_SUCCESS) {
      return MS_FAILURE;
    }
  }
  if (mapserv->Mode == BROWSE) {
    return msCGIDispatchBrowseRequest(mapserv);
  } else if (mapserv->Mode == MAP || mapserv->Mode == SCALEBAR ||
             mapserv->Mode == REFERENCE ||
             mapserv->Mode == TILE) { /* "image" only modes */
    /* tile, map, scalebar and reference all need the extent to be set up
     * correctly */
    if (setExtent(mapserv) != MS_SUCCESS)
      return MS_FAILURE;
    if (checkWebScale(mapserv) != MS_SUCCESS)
      return MS_FAILURE;
    return msCGIDispatchImageRequest(mapserv);
  } else if (mapserv->Mode == LEGEND || mapserv->Mode == MAPLEGEND) {
    return msCGIDispatchLegendRequest(mapserv);
  } else if (mapserv->Mode == LEGENDICON || mapserv->Mode == MAPLEGENDICON) {
    return msCGIDispatchLegendIconRequest(mapserv);
  } else if (mapserv->Mode >= QUERY) {
    return msCGIDispatchQueryRequest(mapserv);
  } else if (mapserv->Mode == COORDINATE) {
    return msCGIDispatchCoordinateRequest(mapserv);
  } else {
    msSetError(MS_WEBERR, "Bug: unsupported mode", "msDispatchRequest");
    return MS_FAILURE;
  }
}

int msCGIHandler(const char *query_string, void **out_buffer,
                 size_t *buffer_length) {
  int m = 0;
  struct mstimeval execstarttime = {0}, execendtime = {0};
  struct mstimeval requeststarttime = {0}, requestendtime = {0};
  mapservObj *mapserv = NULL;
  char *queryString = NULL;
  int maxParams = MS_DEFAULT_CGI_PARAMS;
  msIOContext *ctx;
  msIOBuffer *buf;

  configObj *config = NULL;

  msIO_installStdoutToBuffer();

  /* Use PROJ_DATA/PROJ_LIB env vars if set */
  msProjDataInitFromEnv();

  /* Use MS_ERRORFILE and MS_DEBUGLEVEL env vars if set */
  if (msDebugInitFromEnv() != MS_SUCCESS) {
    msCGIWriteError(mapserv);
    goto end_request;
  }

  if (msGetGlobalDebugLevel() >= MS_DEBUGLEVEL_TUNING)
    msGettimeofday(&execstarttime, NULL);

  if (!query_string || !*query_string) {
    msIO_setHeader("Content-Type", "text/html");
    msIO_sendHeaders();
    msIO_printf("No query information to decode. QUERY_STRING not set.\n");
    goto end_request;
  }

  config = msLoadConfig(NULL);
  if (config == NULL) {
    msCGIWriteError(mapserv);
    goto end_request;
  }

  mapserv = msAllocMapServObj();
  mapserv->request->type = MS_GET_REQUEST;

  /* don't modify the string */
  queryString = msStrdup(query_string);
  while (queryString[0] != '\0') {
    if (m >= maxParams) {
      maxParams *= 2;
      mapserv->request->ParamNames = (char **)realloc(
          mapserv->request->ParamNames, sizeof(char *) * maxParams);
      if (mapserv->request->ParamNames == NULL) {
        msIO_printf("Out of memory trying to allocate name/value pairs.\n");
        goto end_request;
      }
      mapserv->request->ParamValues = (char **)realloc(
          mapserv->request->ParamValues, sizeof(char *) * maxParams);
      if (mapserv->request->ParamValues == NULL) {
        msIO_printf("Out of memory trying to allocate name/value pairs.\n");
        goto end_request;
      }
    }
    mapserv->request->ParamValues[m] = makeword(queryString, '&');
    plustospace(mapserv->request->ParamValues[m]);
    unescape_url(mapserv->request->ParamValues[m]);
    mapserv->request->ParamNames[m] =
        makeword(mapserv->request->ParamValues[m], '=');
    m++;
  }
  mapserv->request->NumParams = m;

  if (mapserv->request->NumParams == 0) {
    msCGIWriteError(mapserv);
    goto end_request;
  }

  mapserv->map = msCGILoadMap(mapserv, config);
  if (!mapserv->map) {
    msCGIWriteError(mapserv);
    goto end_request;
  }

  if (mapserv->map->debug >= MS_DEBUGLEVEL_TUNING)
    msGettimeofday(&requeststarttime, NULL);

  if (msCGIDispatchRequest(mapserv) != MS_SUCCESS) {
    msCGIWriteError(mapserv);
    goto end_request;
  }

end_request:
  if (mapserv) {
    if (mapserv->map && mapserv->map->debug >= MS_DEBUGLEVEL_TUNING) {
      msGettimeofday(&requestendtime, NULL);
      msDebug("mapserv request processing time (msLoadMap not incl.): %.3fs\n",
              (requestendtime.tv_sec + requestendtime.tv_usec / 1.0e6) -
                  (requeststarttime.tv_sec + requeststarttime.tv_usec / 1.0e6));
    }
    msFreeMapServObj(mapserv);
    msFreeConfig(config);
  }

  /* normal case, processing is complete */
  if (msGetGlobalDebugLevel() >= MS_DEBUGLEVEL_TUNING) {
    msGettimeofday(&execendtime, NULL);
    msDebug("mapserv total execution time: %.3fs\n",
            (execendtime.tv_sec + execendtime.tv_usec / 1.0e6) -
                (execstarttime.tv_sec + execstarttime.tv_usec / 1.0e6));
  }
  ctx = msIO_getHandler((FILE *)"stdout");
  buf = (msIOBuffer *)ctx->cbData;
  *out_buffer = buf->data;
  *buffer_length = buf->data_offset;

  free(queryString);

  return 0;
}

int msCGIDispatchMapIndexRequest(mapservObj *mapserv, configObj *config) {
  return msOGCAPIDispatchMapIndexRequest(mapserv, config);
}

int msCGIDispatchIndexRequest(mapservObj *mapserv, configObj *config) {
  return msOGCAPIDispatchIndexRequest(mapserv, config);
}

geographika / mapserver / 17823520225

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