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cmdline.c

/* 
   ldb database library - command line handling for ldb tools

   Copyright (C) Andrew Tridgell  2005

     ** NOTE! The following LGPL license applies to the ldb
     ** library. This does NOT imply that all of Samba is released
     ** under the LGPL
   
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "ldb_includes.h"
#include "tools/cmdline.h"

#if (_SAMBA_BUILD_ >= 4)
#include "includes.h"
#include "lib/cmdline/popt_common.h"
#include "lib/ldb/samba/ldif_handlers.h"
#include "auth/gensec/gensec.h"
#include "auth/auth.h"
#include "db_wrap.h"
#endif



/*
  process command line options
*/
struct ldb_cmdline *ldb_cmdline_process(struct ldb_context *ldb, int argc, const char **argv,
                              void (*usage)(void))
{
      static struct ldb_cmdline options; /* needs to be static for older compilers */
      struct ldb_cmdline *ret=NULL;
      poptContext pc;
#if (_SAMBA_BUILD_ >= 4)
      int r;
#endif
      int num_options = 0;
      int opt;
      int flags = 0;

      struct poptOption popt_options[] = {
            POPT_AUTOHELP
            { "url",       'H', POPT_ARG_STRING, &options.url, 0, "database URL", "URL" },
            { "basedn",    'b', POPT_ARG_STRING, &options.basedn, 0, "base DN", "DN" },
            { "editor",    'e', POPT_ARG_STRING, &options.editor, 0, "external editor", "PROGRAM" },
            { "scope",     's', POPT_ARG_STRING, NULL, 's', "search scope", "SCOPE" },
            { "verbose",   'v', POPT_ARG_NONE, NULL, 'v', "increase verbosity", NULL },
            { "interactive", 'i', POPT_ARG_NONE, &options.interactive, 0, "input from stdin", NULL },
            { "recursive", 'r', POPT_ARG_NONE, &options.recursive, 0, "recursive delete", NULL },
            { "num-searches", 0, POPT_ARG_INT, &options.num_searches, 0, "number of test searches", NULL },
            { "num-records", 0, POPT_ARG_INT, &options.num_records, 0, "number of test records", NULL },
            { "all", 'a',    POPT_ARG_NONE, &options.all_records, 0, "(|(objectClass=*)(distinguishedName=*))", NULL },
            { "nosync", 0,   POPT_ARG_NONE, &options.nosync, 0, "non-synchronous transactions", NULL },
            { "sorted", 'S', POPT_ARG_NONE, &options.sorted, 0, "sort attributes", NULL },
            { "sasl-mechanism", 0, POPT_ARG_STRING, &options.sasl_mechanism, 0, "choose SASL mechanism", "MECHANISM" },
            { "input", 'I', POPT_ARG_STRING, &options.input, 0, "Input File", "Input" },
            { "output", 'O', POPT_ARG_STRING, &options.output, 0, "Output File", "Output" },
            { NULL,    'o', POPT_ARG_STRING, NULL, 'o', "ldb_connect option", "OPTION" },
            { "controls", 0, POPT_ARG_STRING, NULL, 'c', "controls", NULL },
#if (_SAMBA_BUILD_ >= 4)
            POPT_COMMON_SAMBA
            POPT_COMMON_CREDENTIALS
            POPT_COMMON_VERSION
#endif
            { NULL }
      };

      ldb_global_init();

#if (_SAMBA_BUILD_ >= 4)
      r = ldb_register_samba_handlers(ldb);
      if (r != 0) {
            goto failed;
      }

#endif

      ret = talloc_zero(ldb, struct ldb_cmdline);
      if (ret == NULL) {
            ldb_oom(ldb);
            goto failed;
      }

      options = *ret;
      
      /* pull in URL */
      options.url = getenv("LDB_URL");

      /* and editor (used by ldbedit) */
      options.editor = getenv("VISUAL");
      if (!options.editor) {
            options.editor = getenv("EDITOR");
      }
      if (!options.editor) {
            options.editor = "vi";
      }

      options.scope = LDB_SCOPE_DEFAULT;

      pc = poptGetContext(argv[0], argc, argv, popt_options, 
                      POPT_CONTEXT_KEEP_FIRST);

      while((opt = poptGetNextOpt(pc)) != -1) {
            switch (opt) {
            case 's': {
                  const char *arg = poptGetOptArg(pc);
                  if (strcmp(arg, "base") == 0) {
                        options.scope = LDB_SCOPE_BASE;
                  } else if (strcmp(arg, "sub") == 0) {
                        options.scope = LDB_SCOPE_SUBTREE;
                  } else if (strcmp(arg, "one") == 0) {
                        options.scope = LDB_SCOPE_ONELEVEL;
                  } else {
                        fprintf(stderr, "Invalid scope '%s'\n", arg);
                        goto failed;
                  }
                  break;
            }

            case 'v':
                  options.verbose++;
                  break;

            case 'o':
                  options.options = talloc_realloc(ret, options.options, 
                                           const char *, num_options+3);
                  if (options.options == NULL) {
                        ldb_oom(ldb);
                        goto failed;
                  }
                  options.options[num_options] = poptGetOptArg(pc);
                  options.options[num_options+1] = NULL;
                  num_options++;
                  break;

            case 'c': {
                  const char *cs = poptGetOptArg(pc);
                  const char *p, *q;
                  int cc;

                  for (p = cs, cc = 1; (q = strchr(p, ',')); cc++, p = q + 1) ;

                  options.controls = talloc_array(ret, char *, cc + 1);
                  if (options.controls == NULL) {
                        ldb_oom(ldb);
                        goto failed;
                  }
                  for (p = cs, cc = 0; p != NULL; cc++) {
                        const char *t;

                        t = strchr(p, ',');
                        if (t == NULL) {
                              options.controls[cc] = talloc_strdup(options.controls, p);
                              p = NULL;
                        } else {
                              options.controls[cc] = talloc_strndup(options.controls, p, t-p);
                              p = t + 1;
                        }
                  }
                  options.controls[cc] = NULL;

                  break;        
            }
            default:
                  fprintf(stderr, "Invalid option %s: %s\n", 
                        poptBadOption(pc, 0), poptStrerror(opt));
                  if (usage) usage();
                  goto failed;
            }
      }

      /* setup the remaining options for the main program to use */
      options.argv = poptGetArgs(pc);
      if (options.argv) {
            options.argv++;
            while (options.argv[options.argc]) options.argc++;
      }

      *ret = options;

      /* all utils need some option */
      if (ret->url == NULL) {
            fprintf(stderr, "You must supply a url with -H or with $LDB_URL\n");
            if (usage) usage();
            goto failed;
      }

      if (strcmp(ret->url, "NONE") == 0) {
            return ret;
      }

      if (options.nosync) {
            flags |= LDB_FLG_NOSYNC;
      }

#if (_SAMBA_BUILD_ >= 4)
      /* Must be after we have processed command line options */
      gensec_init(); 
      
      if (ldb_set_opaque(ldb, "sessionInfo", system_session(ldb))) {
            goto failed;
      }
      if (ldb_set_opaque(ldb, "credentials", cmdline_credentials)) {
            goto failed;
      }
      ldb_set_utf8_fns(ldb, NULL, wrap_casefold);
#endif

      /* now connect to the ldb */
      if (ldb_connect(ldb, ret->url, flags, ret->options) != 0) {
            fprintf(stderr, "Failed to connect to %s - %s\n", 
                  ret->url, ldb_errstring(ldb));
            goto failed;
      }

      return ret;

failed:
      talloc_free(ret);
      exit(1);
      return NULL;
}

/* this function check controls reply and determines if more
 * processing is needed setting up the request controls correctly
 *
 * returns:
 *    -1 error
 *    0 all ok
 *    1 all ok, more processing required
 */
int handle_controls_reply(struct ldb_control **reply, struct ldb_control **request)
{
      int i, j;
            int ret = 0;

      if (reply == NULL || request == NULL) return -1;
      
      for (i = 0; reply[i]; i++) {
            if (strcmp(LDB_CONTROL_VLV_RESP_OID, reply[i]->oid) == 0) {
                  struct ldb_vlv_resp_control *rep_control;

                  rep_control = talloc_get_type(reply[i]->data, struct ldb_vlv_resp_control);
                  
                  /* check we have a matching control in the request */
                  for (j = 0; request[j]; j++) {
                        if (strcmp(LDB_CONTROL_VLV_REQ_OID, request[j]->oid) == 0)
                              break;
                  }
                  if (! request[j]) {
                        fprintf(stderr, "Warning VLV reply received but no request have been made\n");
                        continue;
                  }

                  /* check the result */
                  if (rep_control->vlv_result != 0) {
                        fprintf(stderr, "Warning: VLV not performed with error: %d\n", rep_control->vlv_result);
                  } else {
                        fprintf(stderr, "VLV Info: target position = %d, content count = %d\n", rep_control->targetPosition, rep_control->contentCount);
                  }

                  continue;
            }

            if (strcmp(LDB_CONTROL_ASQ_OID, reply[i]->oid) == 0) {
                  struct ldb_asq_control *rep_control;

                  rep_control = talloc_get_type(reply[i]->data, struct ldb_asq_control);

                  /* check the result */
                  if (rep_control->result != 0) {
                        fprintf(stderr, "Warning: ASQ not performed with error: %d\n", rep_control->result);
                  }

                  continue;
            }

            if (strcmp(LDB_CONTROL_PAGED_RESULTS_OID, reply[i]->oid) == 0) {
                  struct ldb_paged_control *rep_control, *req_control;

                  rep_control = talloc_get_type(reply[i]->data, struct ldb_paged_control);
                  if (rep_control->cookie_len == 0) /* we are done */
                        break;

                  /* more processing required */
                  /* let's fill in the request control with the new cookie */

                  for (j = 0; request[j]; j++) {
                        if (strcmp(LDB_CONTROL_PAGED_RESULTS_OID, request[j]->oid) == 0)
                              break;
                  }
                  /* if there's a reply control we must find a request
                   * control matching it */
                  if (! request[j]) return -1;

                  req_control = talloc_get_type(request[j]->data, struct ldb_paged_control);

                  if (req_control->cookie)
                        talloc_free(req_control->cookie);
                  req_control->cookie = (char *)talloc_memdup(
                        req_control, rep_control->cookie,
                        rep_control->cookie_len);
                  req_control->cookie_len = rep_control->cookie_len;

                  ret = 1;

                  continue;
            }

            if (strcmp(LDB_CONTROL_SORT_RESP_OID, reply[i]->oid) == 0) {
                  struct ldb_sort_resp_control *rep_control;

                  rep_control = talloc_get_type(reply[i]->data, struct ldb_sort_resp_control);

                  /* check we have a matching control in the request */
                  for (j = 0; request[j]; j++) {
                        if (strcmp(LDB_CONTROL_SERVER_SORT_OID, request[j]->oid) == 0)
                              break;
                  }
                  if (! request[j]) {
                        fprintf(stderr, "Warning Server Sort reply received but no request found\n");
                        continue;
                  }

                  /* check the result */
                  if (rep_control->result != 0) {
                        fprintf(stderr, "Warning: Sorting not performed with error: %d\n", rep_control->result);
                  }

                  continue;
            }

            if (strcmp(LDB_CONTROL_DIRSYNC_OID, reply[i]->oid) == 0) {
                  struct ldb_dirsync_control *rep_control, *req_control;
                  char *cookie;

                  rep_control = talloc_get_type(reply[i]->data, struct ldb_dirsync_control);
                  if (rep_control->cookie_len == 0) /* we are done */
                        break;

                  /* more processing required */
                  /* let's fill in the request control with the new cookie */

                  for (j = 0; request[j]; j++) {
                        if (strcmp(LDB_CONTROL_DIRSYNC_OID, request[j]->oid) == 0)
                              break;
                  }
                  /* if there's a reply control we must find a request
                   * control matching it */
                  if (! request[j]) return -1;

                  req_control = talloc_get_type(request[j]->data, struct ldb_dirsync_control);

                  if (req_control->cookie)
                        talloc_free(req_control->cookie);
                  req_control->cookie = (char *)talloc_memdup(
                        req_control, rep_control->cookie,
                        rep_control->cookie_len);
                  req_control->cookie_len = rep_control->cookie_len;

                  cookie = ldb_base64_encode(req_control, rep_control->cookie, rep_control->cookie_len);
                  printf("# DIRSYNC cookie returned was:\n# %s\n", cookie);

                  continue;
            }

            /* no controls matched, throw a warning */
            fprintf(stderr, "Unknown reply control oid: %s\n", reply[i]->oid);
      }

      return ret;
}


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