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   1  <?php
   2  # MantisBT - A PHP based bugtracking system
   3  
   4  # MantisBT is free software: you can redistribute it and/or modify
   5  # it under the terms of the GNU General Public License as published by
   6  # the Free Software Foundation, either version 2 of the License, or
   7  # (at your option) any later version.
   8  #
   9  # MantisBT is distributed in the hope that it will be useful,
  10  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  # GNU General Public License for more details.
  13  #
  14  # You should have received a copy of the GNU General Public License
  15  # along with MantisBT.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * To delete a relationship we need to ensure that:
  19   * - User not anomymous
  20   * - Source bug exists and is not in read-only state (peer bug could not exist...)
  21   * - User that update the source bug and at least view the destination bug
  22   * - Relationship must exist
  23   *
  24   * @package MantisBT
  25   * @copyright Copyright (C) 2000 - 2002  Kenzaburo Ito - kenito@300baud.org
  26   * @copyright Copyright (C) 2002 - 2010  MantisBT Team - mantisbt-dev@lists.sourceforge.net
  27   * @author Marcello Scata' <marcelloscata at users.sourceforge.net> ITALY
  28   * @link http://www.mantisbt.org
  29   *
  30   * @uses core.php
  31   * @uses access_api.php
  32   * @uses bug_api.php
  33   * @uses config_api.php
  34   * @uses constant_inc.php
  35   * @uses email_api.php
  36   * @uses error_api.php
  37   * @uses form_api.php
  38   * @uses gpc_api.php
  39   * @uses helper_api.php
  40   * @uses history_api.php
  41   * @uses lang_api.php
  42   * @uses print_api.php
  43   * @uses relationship_api.php
  44   */
  45  
  46  /**
  47   * MantisBT Core API's
  48   */
  49  require_once ( 'core.php' );
  50  require_api( 'access_api.php' );
  51  require_api( 'bug_api.php' );
  52  require_api( 'config_api.php' );
  53  require_api( 'constant_inc.php' );
  54  require_api( 'email_api.php' );
  55  require_api( 'error_api.php' );
  56  require_api( 'form_api.php' );
  57  require_api( 'gpc_api.php' );
  58  require_api( 'helper_api.php' );
  59  require_api( 'history_api.php' );
  60  require_api( 'lang_api.php' );
  61  require_api( 'print_api.php' );
  62  require_api( 'relationship_api.php' );
  63  
  64  form_security_validate( 'bug_relationship_delete' );
  65  
  66  $f_rel_id = gpc_get_int( 'rel_id' );
  67  $f_bug_id = gpc_get_int( 'bug_id' );
  68  
  69  $t_bug = bug_get( $f_bug_id, true );
  70  if( $t_bug->project_id != helper_get_current_project() ) {
  71      # in case the current project is not the same project of the bug we are viewing...
  72      # ... override the current project. This to avoid problems with categories and handlers lists etc.
  73      $g_project_override = $t_bug->project_id;
  74  }
  75  
  76  # user has access to update the bug...
  77  access_ensure_bug_level( config_get( 'update_bug_threshold' ), $f_bug_id );
  78  
  79  # bug is not read-only...
  80  if ( bug_is_readonly( $f_bug_id ) ) {
  81      error_parameters( $f_bug_id );
  82      trigger_error( ERROR_BUG_READ_ONLY_ACTION_DENIED, ERROR );
  83  }
  84  
  85  # retrieve the destination bug of the relationship
  86  $t_dest_bug_id = relationship_get_linked_bug_id( $f_rel_id, $f_bug_id );
  87  
  88  # user can access to the related bug at least as viewer, if it's exist...
  89  if ( bug_exists( $t_dest_bug_id )) {
  90      if ( !access_has_bug_level( VIEWER, $t_dest_bug_id ) ) {
  91          error_parameters( $t_dest_bug_id );
  92          trigger_error( ERROR_RELATIONSHIP_ACCESS_LEVEL_TO_DEST_BUG_TOO_LOW, ERROR );
  93      }
  94  }
  95  
  96  helper_ensure_confirmed( lang_get( 'delete_relationship_sure_msg' ), lang_get( 'delete_relationship_button' ) );
  97  
  98  $t_bug_relationship_data = relationship_get( $f_rel_id );
  99  $t_rel_type = $t_bug_relationship_data->type;
 100  
 101  # delete relationship from the DB
 102  relationship_delete( $f_rel_id );
 103  
 104  # update bug last updated (just for the src bug)
 105  bug_update_date( $f_bug_id );
 106  
 107  # set the rel_type for both bug and dest_bug based on $t_rel_type and on who is the dest bug
 108  if ($f_bug_id == $t_bug_relationship_data->src_bug_id) {
 109      $t_bug_rel_type = $t_rel_type;
 110      $t_dest_bug_rel_type = relationship_get_complementary_type( $t_rel_type );
 111  } else {
 112      $t_bug_rel_type = relationship_get_complementary_type( $t_rel_type );
 113      $t_dest_bug_rel_type = $t_rel_type;
 114  }
 115  
 116  # send email and update the history for the src issue
 117  history_log_event_special( $f_bug_id, BUG_DEL_RELATIONSHIP, $t_bug_rel_type, $t_dest_bug_id );
 118  email_relationship_deleted( $f_bug_id, $t_dest_bug_id, $t_bug_rel_type );
 119  
 120  if ( bug_exists( $t_dest_bug_id )) {
 121      # send email and update the history for the dest issue
 122      history_log_event_special( $t_dest_bug_id, BUG_DEL_RELATIONSHIP, $t_dest_bug_rel_type, $f_bug_id );
 123      email_relationship_deleted( $t_dest_bug_id, $f_bug_id, $t_dest_bug_rel_type );
 124  }
 125  
 126  form_security_purge( 'bug_relationship_delete' );
 127  
 128  print_header_redirect_view( $f_bug_id );