lcg-sdel.c

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/* lcg-sdel.c - Delete data and KEY from Grid
 * ====================================================================
 * Copyright (c) Giordano Scuderi, Unico SRL.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by Giordano Scuderi
 *    for Unico SRL"
 *
 * 4. The names "Secure Storage" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    gscuderi@unicosrl.it.
 *
 * 5. Products derived from this software may not be called "Secure Storage"
 *    nor may "Secure Storage" appear in their names without prior written
 *    permission of Giordano Scuderi (Unico SRL).
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by Giordano Scuderi
 *    for Unico SRL"
 *
 * THIS SOFTWARE IS PROVIDED BY UNICO SRL ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL UNICO SRL OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 * 
 */

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <getopt.h>
#include <stdlib.h>
#include <ctype.h>
#include <fcntl.h>
#if defined(_WIN32)
#include <io.h>
#else
#include <unistd.h>
#endif
#include <dlfcn.h>
#include "lcg-sdel.h"
#include "securestorage.h"

#ifdef __cplusplus
} /* closing brace for extern "C" */
#endif


/* Flag set by --verbose and --insecure */
int insecure, verbose;

int helpflg;
// Valid character
const char *accept_host=" abcdefghilmnopqrstuvzwyxkjABCDEFGHILMNOPQRSTUVZWYXKJ0123456789.-";
const char *accept_vo=" abcdefghilmnopqrstuvzwyxkjABCDEFGHILMNOPQRSTUVZWYXKJ0123456789-";
const char *accept_lfn=" abcdefghilmnopqrstuvzwyxkjABCDEFGHILMNOPQRSTUVZWYXKJ0123456789.:_/-";

/* Print help screen and exit */
void usage(FILE *out) {
        fprintf ( out, "%s Version %s\n", PROGRAMNAME, PROGRAMVERSION);
        fprintf ( out, "By %s for %s.\n",AUTHOR, COMPANY);
        fprintf ( out, "\nUsage: %s [--vo VO] [-a | -s SE] [-v | --verbose] [-h | --help] [-t timeout]\n", PROGRAMNAME);
        fprintf ( out, "\t[-i | --insecure] [--config config_file] <lfn_to_delete>\n");
        fprintf ( out, " -s SE : Delete replica in specified SE\n");
        fprintf ( out, " -a    : Delete all replica's\n");
        if (out == stdout)
                exit(0);
        else
                exit(-1);       
}       

int main(int argc, char *argv[]) {
        int aflag = 0;
        int c;
        char *conf_file = NULL;
        int errflg = 0;
        static struct option longopts[] = {
                {"config", required_argument, 0, 'C'},
                {"help", no_argument, &helpflg, 1},
                {"insecure", no_argument, &insecure, 1},
                {"verbose", no_argument, &verbose, 1},
                {"vo", required_argument, 0, 'V'},
                {0, 0, 0, 0}
        };
        char *se = NULL;
        char *vo = NULL;
        char *src_file = NULL;
        char *dp;
        int timeout = 0;
        insecure=0;
        size_t inv;
        
        opterr = 0;
        while ((c = getopt_long (argc, argv, "ahis:vt:", longopts, NULL)) != EOF) {
                switch (c) {
                case 'a':
                        aflag = 1;
                        break;
                case 'C':
                        conf_file = optarg;
                        break;
                case 'h':
                        helpflg = 1;
                        break;
                case 'i':
                        insecure = 1;
                        break;
                case 's':
                        se = optarg;
                        break;
                case 'V':
                        vo = optarg;
                        break;
                case 'v':
                        verbose = 1;
                        break;
                case 't':
                        if ((timeout = strtol (optarg, &dp, 10)) < 1 ||
                           *dp != '\0') {
                                fprintf (stderr, 
                                "invalid value of timeout %s\n", optarg);
                                errflg++;
                        }
                        break;
                case '?':
                        errflg++;
                        break;
                default:
                        break;
                }
        }
        if (optind >= argc) {
                errflg++;
        }
        if (errflg || helpflg) {
                if(helpflg)
                        usage(stdout);
                else
                        usage(stderr);
        }

        src_file = argv[optind];
        if (src_file==NULL) {
                fprintf(stderr, "You must specify source lfn!\n");
                exit(1);
        }
        // Verify length of destination lfn
        if (strlen (src_file) + 1 > LCG_MAXPATHLEN) {
                fprintf (stderr, "Invalid lfn : %s \n", src_file);
                exit(1);
        }
        if (vo == NULL) {
                vo = getenv("LCG_GFAL_VO");
                if (!vo) {
                        fprintf(stderr, "VO not specified and LCG_GFAL_VO not set.\n");
                        exit(1);
                }
        }
        // Input file must be an LFN
        if (strncmp (src_file, "lfn:", 4) != 0) {
                fprintf (stderr, "Invalid lfn : %s \n", argv[optind]);
                exit(1);        
        }
        
        // Get default SE from Environment Variable
        char oo[strlen(vo)+1];
        char *storageelementdest;
        int i;
        strcpy(oo,vo);
        for (i=0; oo[i]!=0; i++)
                oo[i] = toupper(oo[i]);
        storageelementdest = calloc(1, (strlen(oo)+strlen("VO_%s_DEFAULT_SE")+1));
        sprintf(storageelementdest,"VO_%s_DEFAULT_SE",oo);
        se = getenv(storageelementdest);
        if ( aflag == 0 && se == NULL) {
                fprintf (stderr, "Flag -s or -a not specified and %s not set.\n", storageelementdest);
                free(storageelementdest);
                exit(1);        
        }
        free(storageelementdest);
        // Input parameters filter
        inv=0;
        inv = strspn(vo, accept_vo);
        if (inv != strlen(vo) ) {
                fprintf(stderr,"Invalid character on VO parameter.\n");
                exit(1);
        }
        inv=0;
        inv = strspn(src_file, accept_lfn);
        if (inv != strlen(src_file) ) {
                fprintf(stderr,"Invalid character on Source File parameter.\n");
                exit(1);
        }
        if (se != NULL) {
                inv=0;
                inv = strspn(se, accept_host);
                if (inv != strlen(se) ) {
                        fprintf(stderr,"Invalid character on SE parameter.\n");
                        exit(1);
                }
        }       
        
        //Call lcg_sdel from secure storage Library
        if ( lcg_sdel(src_file,aflag,se,vo,conf_file,insecure,verbose,timeout) < 0) {
                int errno_save = errno;
                fprintf(stderr, "%s\n", securestorage_error(errno_save));
                exit(1);
        }
        exit (0);
}

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