netcdf-c/ncdap_test/t_auth.c
Dennis Heimbigner 7223c4a5aa Avoid spurious test failures when servers fail.
re: https://github.com/Unidata/netcdf-c/issues/1451

The situation with the various DAP (and other) remote test
servers is currently in a state of flux.  For example, Unidata
admin is planning to forcibly shift the remote test server to
remotetest.unidata.ucar.edu soon.  In addition, the server
test.opendap.org has shown some recent instability.

The result is that various DAP (and byterange) tests can fail
unexpectedly. This is an irritant to users and reveals nothing
about test sucess or failure.

Solve by modifying tests to report server inaccessibility and
otherwise pretend to succeed.

This puts an onus on Unidata to detect such server failures, but
will not cause users to see spurious failures. [Note. Do similar
fix for netcdf-java]. The check is:
1. export SETX=1 to cause all the shell scripts to trace
2. search the log files for the phrase "WARNING" (in upper case)
and see if it is complaining about not finding a server.

Misc. Changes
-------------
1. Added a pingurl program to see if a server was up.
2. modified some test case url targets
2019-12-31 15:42:58 -07:00

223 lines
4.8 KiB
C

/*! \file
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
2015, 2016, 2017, 2018
University Corporation for Atmospheric Research/Unidata.
See \ref copyright file for more info.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#define DEBUG
#include "netcdf.h"
#include "nctestserver.h"
#undef NOEMBED
#undef NOLOCAL
#undef NOHOME
#define NOREDIR
#define KEEPRC
#define RC ".ocrc"
#define SPECRC "./ocrc"
#define USERPWD "tiggeUser:tigge"
#define COOKIEFILE "./cookies"
#define URL1 "https://%s@%s/dodsC/restrict/testData.nc"
#define URL2 "https://%s/dodsC/restrict/testData.nc"
#define URL3 "https://%s@thredds-test.ucar.edu/thredds/dodsC/restrict/testData.nc"
/* Embedded user:pwd */
static char url1[1024];
/* user:pwd from RC*/
static char url2[1024];
/* Test redirect from different machine*/
static char url3[1024];
static int testrc(const char* prefix, const char* url);
static void fillrc(const char* path);
static void killrc();
#ifdef DEBUG
static void
CHECK(int e, const char* msg)
{
if(e == NC_NOERR) return;
if(msg == NULL) msg = "Error";
fprintf(stderr,"%s: %s\n", msg, nc_strerror(e));
exit(1);
}
#endif
int
main(int argc, char** argv)
{
int ncid,retval,pass;
FILE* rc;
const char* dfaltsvc;
char buffer[8192];
const char* home;
fprintf(stderr,"Testing: Authorization\n");
dfaltsvc = nc_findtestserver("thredds",REMOTETESTSERVERS);
if(svc == NULL) {
fprintf(stderr,"WARNING: Cannot locate test server\n");
exit(0);
}
snprintf(url1,sizeof(url1),URL1,USERPWD,dfaltsvc); /* embedded */
snprintf(url2,sizeof(url2),URL2,dfaltsvc); /* using rc file */
#ifdef DEBUG
fprintf(stderr,"url1: %s\n",url1);
fprintf(stderr,"url2: %s\n",url2);
fflush(stderr);
#endif
pass = 1; /* assume success */
killrc();
fprintf(stderr,"Testing: Http Basic Authorization\n\n");
#ifndef NOEMBED
{
fprintf(stderr,"Testing: Embedded user:pwd: %s\n",url1);
retval = nc_open(url1, 0, &ncid);
if(retval != NC_NOERR) {
pass = 0;
fprintf(stderr,"*** FAIL: Testing embedded user:pwd\n");
} else {
fprintf(stderr,"*** PASS: Testing embedded user:pwd\n");
retval = nc_close(ncid);
}
fflush(stderr);
}
#endif
#ifndef NOLOCAL
{
/* Test 1: RC in ./ */
fprintf(stderr,"Testing: user:pwd in %s/%s: %s\n",".",RC);
if(!testrc(".",url2)) {
fprintf(stderr,"user:pwd in %s/%s failed\n",".",RC);
exit(1);
}
}
#endif
#ifndef NOHOME
{
/* Test 1: RC in HOME */
home = getenv("HOME");
fprintf(stderr,"user:pwd in %s/%s: %s\n",home,RC);
if(!testrc(home,url2)) {
fprintf(stderr,"user:pwd in %s/%s failed\n",home,RC);
exit(1);
}
}
#endif
#ifndef NOREDIR
{
fprintf(stderr,"Testing: Http Basic Redirect\n\n");
snprintf(url3,sizeof(url3),URL3,USERPWD);
fprintf(stderr,"Basic redirect: %s\n",url3);
retval = nc_open(url3, 0, &ncid);
if(retval != NC_NOERR) {
fprintf(stderr,"*** XFAIL: Basic redirect\n");
} else {
fprintf(stderr,"*** PASS: Basic redirect\n");
retval = nc_close(ncid);
}
fflush(stderr);
}
#endif
return !pass;
}
static int
testrc(const char* prefix, const char* url)
{
int pass = 1;
int retval;
int ncid;
char rcpath[8192];
FILE* rc;
snprintf(rcpath,sizeof(rcpath),"%s/%s",prefix,RC);
rc = fopen(rcpath,"w");
if(rc == NULL) {
fprintf(stderr,"Cannot create ./%s\n",RC);
exit(1);
}
fclose(rc);
fillrc(rcpath);
retval = nc_open(url, 0, &ncid);
if(retval != NC_NOERR) {
pass = 0;
fprintf(stderr,"*** FAIL: Testing: user:pwd in %s\n",rcpath);
} else {
retval = nc_close(ncid);
fprintf(stderr,"*** PASS: Testing: user:pwd in %s\n",rcpath);
}
fflush(stderr);
#ifndef KEEPRC
unlink(rcpath); /* delete the file */
#endif
return pass;
}
static void
fillrc(const char* path)
{
FILE* rc;
killrc();
rc = fopen(path,"w");
if(rc == NULL) {
fprintf(stderr,"cannot create rc file: %s\n",path);
exit(1);
}
#ifdef DEBUG
fprintf(rc,"HTTP.VERBOSE=1\n");
#endif
fprintf(rc,"HTTP.COOKIEJAR=%s\n",COOKIEFILE);
fprintf(rc,"HTTP.VALIDATE=1\n");
fprintf(rc,"HTTP.CREDENTIALS.USERPASSWORD=%s\n",USERPWD);
fclose(rc);
}
static void
killrc()
{
const char* home;
char path[1024];
#ifdef KEEPRC
fprintf(stderr,"kill: ./%s\n",RC);
#else
snprintf(path,sizeof(path),"%s/%s",".",RC);
unlink(path); /* delete the file */
#endif
home = getenv("HOME");
#ifdef KEEPRC
fprintf(stderr,"kill: %s/%s\n",home,RC);
#else
snprintf(path,sizeof(path),"%s/%s",home,RC);
unlink(path);
#endif
}