int
globus_validate_filename( char * value,
void * parms,
char ** error_msg )
{
int fd;
int mode;
int my_errno;
if (!parms)
{
*error_msg = _GCSL(globus_l_validate_error_null_parms);
return GLOBUS_FAILURE;
}
mode = *((int *)(parms));
fd = globus_libc_open( value, mode );
my_errno = errno;
if (fd < 0)
{
*error_msg = globus_libc_system_error_string(my_errno);
return GLOBUS_FAILURE;
}
globus_libc_close(fd);
return GLOBUS_SUCCESS;
}
static void
globus_l_gass_server_ez_register_accept_callback(
void * listener,
globus_gass_transfer_request_t request
)
{
int rc;
char * subjectname;
char * path=GLOBUS_NULL;
char * url;
globus_url_t parsed_url;
globus_l_gass_server_ez_t * s;
globus_gass_server_ez_request_t *r;
struct stat statstruct;
globus_byte_t * buf;
int amt;
int flags=0;
subjectname=globus_gass_transfer_request_get_subject(request);
/* lookup our options */
s=(globus_l_gass_server_ez_t *)globus_hashtable_lookup(
&globus_l_gass_server_ez_listeners,
listener);
/* Check for valid URL */
url=globus_gass_transfer_request_get_url(request);
rc = globus_url_parse(url, &parsed_url);
if(rc != GLOBUS_SUCCESS ||
parsed_url.url_path == GLOBUS_NULL || strlen(parsed_url.url_path) == 0U)
{
globus_gass_transfer_deny(request, 404, "File Not Found");
globus_gass_transfer_request_destroy(request);
if (rc == GLOBUS_SUCCESS)
globus_url_destroy(&parsed_url);
goto reregister_nourl;
}
if(globus_gass_transfer_request_get_type(request) ==
GLOBUS_GASS_TRANSFER_REQUEST_TYPE_APPEND)
{
flags = O_CREAT | O_WRONLY | O_APPEND;
}
else if(globus_gass_transfer_request_get_type(request) ==
GLOBUS_GASS_TRANSFER_REQUEST_TYPE_PUT)
{
flags = O_CREAT | O_WRONLY | O_TRUNC;
}
switch(globus_gass_transfer_request_get_type(request))
{
case GLOBUS_GASS_TRANSFER_REQUEST_TYPE_APPEND:
case GLOBUS_GASS_TRANSFER_REQUEST_TYPE_PUT:
/* Check to see if this is a request we are allowed to handle */
if(((s->options & GLOBUS_GASS_SERVER_EZ_WRITE_ENABLE) == 0UL) &&
((s->options & GLOBUS_GASS_SERVER_EZ_STDOUT_ENABLE) == 0UL) &&
((s->options & GLOBUS_GASS_SERVER_EZ_STDERR_ENABLE) == 0UL) &&
((s->options & GLOBUS_GASS_SERVER_EZ_CLIENT_SHUTDOWN_ENABLE) ==
0UL))
{
goto deny;
}
/* Expand ~ and ~user prefix if enaabled in options */
rc = globus_l_gass_server_ez_tilde_expand(s->options,
parsed_url.url_path,
&path);
if(strncmp(path, "/dev/saga", 9) == 0 &&
(s->options & GLOBUS_GASS_SERVER_EZ_STDOUT_ENABLE))
{
rc = s->fd; // the pipe handle!
goto authorize;
}
else if(strncmp(path, "/dev/saga/", 9) == 0)
{
goto deny;
}
else if(strcmp(path, "/dev/globus_gass_client_shutdown") == 0)
{
if(s->options & GLOBUS_GASS_SERVER_EZ_CLIENT_SHUTDOWN_ENABLE &&
s->callback != GLOBUS_NULL)
{
s->callback();
}
goto deny;
}
#ifdef TARGET_ARCH_WIN32
// The call to open() in Windows defaults to text mode, so
// we to override it.
flags |= O_BINARY;
#endif
rc = globus_libc_open(path, flags, 0600);
if(rc < 0)
{
goto deny;
}
authorize:
globus_gass_transfer_authorize(request, 0);
if(s->options & GLOBUS_GASS_SERVER_EZ_LINE_BUFFER)
{
r=(globus_gass_server_ez_request_t *)globus_malloc(
sizeof(globus_gass_server_ez_request_t));
r->fd=rc;
r->line_buffer=globus_malloc(80);
r->line_buffer_used= 0UL;
r->line_buffer_length = 80UL;
r->linebuffer = GLOBUS_TRUE;
globus_gass_transfer_receive_bytes(request,
globus_malloc(1024),
1024,
1,
globus_gass_server_ez_put_memory_done,
r);
}
else
{
globus_gass_transfer_receive_bytes(request,
globus_malloc(1024),
1024,
1,
globus_l_gass_server_ez_put_callback,
(void *) rc);
}
break;
case GLOBUS_GASS_TRANSFER_REQUEST_TYPE_GET:
flags = O_RDONLY;
/* Expand ~ and ~user prefix if enaabled in options */
rc = globus_l_gass_server_ez_tilde_expand(s->options,
parsed_url.url_path,
&path);
if((s->options & GLOBUS_GASS_SERVER_EZ_READ_ENABLE) == 0UL)
{
goto deny;
}
if(stat(path, &statstruct)==0)
{
#ifdef TARGET_ARCH_WIN32
// The call to open() in Windows defaults to text mode,
// so we to override it.
flags |= O_BINARY;
#endif
rc = globus_libc_open(path, flags, 0600);
fstat(rc, &statstruct);
}
else
{
globus_gass_transfer_deny(request, 404, "File Not Found");
globus_gass_transfer_request_destroy(request);
goto reregister;
}
buf = globus_malloc(1024);
amt = read(rc, buf, 1024);
if(amt == -1)
{
globus_free(buf);
goto deny;
}
globus_gass_transfer_authorize(request,
statstruct.st_size);
globus_gass_transfer_send_bytes(request,
buf,
amt,
GLOBUS_FALSE,
globus_l_gass_server_ez_get_callback,
(void *) rc);
break;
default:
deny:
globus_gass_transfer_deny(request, 400, "Bad Request");
globus_gass_transfer_request_destroy(request);
}
reregister:
globus_url_destroy(&parsed_url);
reregister_nourl:
globus_gass_transfer_register_listen(
(globus_gass_transfer_listener_t) listener,
globus_l_gass_server_ez_listen_callback,
s->reqattr);
if (path != GLOBUS_NULL) globus_free(path);
} /*globus_l_gass_server_ez_register_accept_callback*/
