Ejemplo n.º 1
0
Archivo: ows.c Proyecto: Ezio47/tinyows
/*
 * Connect the ows to the database specified in configuration file
 */
static void ows_pg(ows * o, char *con_str)
{
  assert(o);
  assert(con_str);

  o->pg = PQconnectdb(con_str);

  if (PQstatus(o->pg) != CONNECTION_OK) {
    ows_log(o, 1, PQerrorMessage(o->pg));
    ows_error(o, OWS_ERROR_CONNECTION_FAILED, "Connection to database failed", "init_OWS");
    return;
  }

  if (PQsetClientEncoding(o->pg, o->db_encoding->buf)) {
    ows_log(o, 1, PQerrorMessage(o->pg));
    ows_error(o, OWS_ERROR_CONNECTION_FAILED, "Wrong database encoding", "init_OWS");
    return;
  }

  o->postgis_version = ows_psql_postgis_version(o);
  if (!o->postgis_version)
    ows_error(o, OWS_ERROR_CONNECTION_FAILED, "No PostGIS available in database", "init_OWS");
  else if (ows_version_get(o->postgis_version) < 150)
    ows_error(o, OWS_ERROR_CONNECTION_FAILED, "PostGIS version must be at least 1.5.0", "init_OWS");
}
Ejemplo n.º 2
0
/*
 * Return an ExceptionReport as specified in OWS 1.1.0 specification
 */
void ows_error(ows * o, enum ows_error_code code, char *message, char *locator)
{
  assert(o);
  assert(message);
  assert(locator);

  assert(!o->exit);
  o->exit = true;

  ows_log(o, 1, message);

#if TINYOWS_FCGI
  if ((o->init && FCGI_Accept() >= 0) || !o->init) {
#endif
    fprintf(o->output, "Content-Type: application/xml\n\n");
    fprintf(o->output, "<?xml version='1.0' encoding='UTF-8'?>\n");
    fprintf(o->output, "<ows:ExceptionReport\n");
    fprintf(o->output, " xmlns='http://www.opengis.net/ows'\n");
    fprintf(o->output, " xmlns:ows='http://www.opengis.net/ows'\n");
    fprintf(o->output, " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'\n");
    fprintf(o->output, " xsi:schemaLocation='http://www.opengis.net/ows");
    fprintf(o->output, " http://schemas.opengis.net/ows/1.0.0/owsExceptionReport.xsd'\n");
    fprintf(o->output, " version='1.1.0' language='en'>\n");
    fprintf(o->output, " <ows:Exception exceptionCode='%s' locator='%s'>\n",
            ows_error_code_string(code), locator);
    fprintf(o->output, "  <ows:ExceptionText>%s</ows:ExceptionText>\n", message);
    fprintf(o->output, " </ows:Exception>\n");
    fprintf(o->output, "</ows:ExceptionReport>\n");

#if TINYOWS_FCGI
    fflush(o->output);
  }
#endif
}
Ejemplo n.º 3
0
/*
 * Execute an SQL request
 */
PGresult * ows_psql_exec(ows *o, const char *sql)
{
    assert(o);
    assert(sql);
    assert(o->pg);

    ows_log(o, 8, sql);
    return PQexecParams(o->pg, sql, 0, NULL, NULL, NULL, NULL, 0);
}
Ejemplo n.º 4
0
Archivo: ows.c Proyecto: Ezio47/tinyows
int main(int argc, char *argv[])
{
  ows *o;
  char *query;

  o = ows_init();
  o->config_file = buffer_init();

  /* Config Files */
  if (getenv("TINYOWS_CONFIG_FILE"))
    buffer_add_str(o->config_file, getenv("TINYOWS_CONFIG_FILE"));
  else if (getenv("TINYOWS_MAPFILE")) {
    buffer_add_str(o->config_file, getenv("TINYOWS_MAPFILE"));
    o->mapfile = true;
  } else
    buffer_add_str(o->config_file, OWS_CONFIG_FILE_PATH);

  LIBXML_TEST_VERSION
  xmlInitParser();

  /* Parse the configuration file and initialize ows struct */
  if (!o->exit) ows_parse_config(o, o->config_file->buf);
  if (!o->exit) ows_log(o, 2, "== TINYOWS STARTUP ==");

  /* Connect the ows to the database */
  if (!o->exit) ows_pg(o, o->pg_dsn->buf);
  if (!o->exit) ows_log(o, 2, "== Connection PostGIS ==");

  /* Fill layers storage metadata */
  if (!o->exit) ows_layers_storage_fill(o);
  if (!o->exit) ows_log(o, 2, "== Filling Storage ==");

  o->init = false;

#if TINYOWS_FCGI
  if (!o->exit) ows_log(o, 2, "== FCGI START ==");
  while (FCGI_Accept() >= 0) {
#endif

    query=NULL;
    if (!o->exit) query = cgi_getback_query(o);  /* Retrieve safely query string */
    if (!o->exit) ows_log(o, 4, query);          /* Log input query if asked */

    if (!o->exit && (!query || !strlen(query))) {
      /* Usage or Version command line options */
      if (argc > 1) {
        if (    !strncmp(argv[1], "--help", 6)
                || !strncmp(argv[1], "-h", 2)
                || !strncmp(argv[1], "--check", 7)) ows_usage(o);

        else if (    !strncmp(argv[1], "--version", 9)
                     || !strncmp(argv[1], "-v", 2))
          fprintf(stdout, "%s\n", TINYOWS_VERSION);

        else ows_error(o, OWS_ERROR_INVALID_PARAMETER_VALUE, "Service Unknown", "service");

      } else ows_error(o, OWS_ERROR_INVALID_PARAMETER_VALUE, "Service Unknown", "service");

      o->exit=true;  /* Have done what we have to */
    }

    if (!o->exit) o->request = ows_request_init();
    if (!o->exit) ows_kvp_or_xml(o, query);  /* Method is KVP or XML ? */

    if (!o->exit) {

      switch (o->request->method) {
        case OWS_METHOD_KVP:
          o->cgi = cgi_parse_kvp(o, query);
          break;
        case OWS_METHOD_XML:
          o->cgi = cgi_parse_xml(o, query);
          break;

        default:
          ows_error(o, OWS_ERROR_REQUEST_HTTP, "Wrong HTTP request Method", "http");
      }
    }

    if (!o->exit) o->psql_requests = list_init();
    if (!o->exit) ows_metadata_fill(o, o->cgi);                    /* Fill service's metadata */
    if (!o->exit) ows_request_check(o, o->request, o->cgi, query); /* Process service request */

    /* Run the right OWS service */
    if (!o->exit) {
      switch (o->request->service) {
        case WFS:
          o->request->request.wfs = wfs_request_init();
          wfs_request_check(o, o->request->request.wfs, o->cgi);
          if (!o->exit) wfs(o, o->request->request.wfs);
          break;
        default:
          ows_error(o, OWS_ERROR_INVALID_PARAMETER_VALUE, "Service Unknown", "service");
      }
    }

    if (o->request) {
      ows_request_free(o->request);
      o->request=NULL;
    }

    /* We allocated memory only on post case */
    if (cgi_method_post() && query) free(query);

#if TINYOWS_FCGI
    fflush(stdout);
    o->exit = false;
  }
  ows_log(o, 2, "== FCGI SHUTDOWN ==");
  OS_LibShutdown();
#endif
  ows_log(o, 2, "== TINYOWS SHUTDOWN ==");
  ows_free(o);

  xmlCleanupParser();

  return EXIT_SUCCESS;
}