 f5872caf9d
			
		
	
	
		f5872caf9d
		
	
	
	
	
		
			
			which is anon_token_id. This adds the functions and code necessary to do that. This is probably a bit of a hack.
		
			
				
	
	
		
			502 lines
		
	
	
	
		
			13 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			502 lines
		
	
	
	
		
			13 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| $has_config = FALSE;
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| 
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| $mysql_host = "";
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| $mysql_user = "";
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| $mysql_password = "";
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| $mysql_db = "";
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| 
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| $elections_table = "elections";
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| $choices_table = "election_choices";
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| $anon_tokens_table = "election_anon_tokens";
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| $tmp_tokens_table = "election_tmp_tokens";
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| $votes_table = "election_votes";
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| $voters_table = "election_voters";
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| $results_table = "election_results";
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| $committee_email = "elections@gnome.org";
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| $committee_name =  "the Membership and Elections Committee";
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| 
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| if (is_readable ("include/localconfig.php")) {
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|   /* You can use such a file to have a local config for testing purpose. */
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|   include ("include/localconfig.php");
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|   $has_config = TRUE;
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| }
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| 
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| if (is_readable ("/home/admin/secret/anonvoting")) {
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|   include ("/home/admin/secret/anonvoting");
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|   $has_config = TRUE;
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| }
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| 
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| if (!$has_config) {
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|   trigger_error ("No configuration found.");
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| }
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| 
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| function elec_sql_open () {
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|   global $mysql_host;
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|   global $mysql_user;
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|   global $mysql_password;
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|   global $mysql_db;
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| 
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|   $handle = mysql_connect ("$mysql_host", "$mysql_user", "$mysql_password");
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|   if (!$handle) {
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|     return FALSE;
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|   }
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| 
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|   $select_base = mysql_select_db ($mysql_db, $handle); 
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|   if (!$select_base) {
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|     elec_sql_close ($handle);
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|     return FALSE;
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|   }
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|   mysql_query ("SET NAMES 'utf8'", $handle);
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| 
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|   return $handle;
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| }
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| 
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| function elec_sql_close ($handle) {
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|     if ($handle === FALSE)
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|       return;
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| 
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|     mysql_close ($handle);
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| }
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| 
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| function elec_sql_start_transaction ($handle) {
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $result = mysql_query ("START TRANSACTION", $handle);
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| 
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|   return ($result !== FALSE);
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| }
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| 
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| function elec_sql_commit ($handle) {
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $result = mysql_query ("COMMIT", $handle);
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| 
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|   return ($result !== FALSE);
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| }
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| 
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| function elec_sql_rollback ($handle) {
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $result = mysql_query ("ROLLBACK", $handle);
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| 
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|   return ($result !== FALSE);
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| }
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| 
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| function elec_get_by_date_desc_with_where ($handle, $where = "") {
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|   global $elections_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $query = "SELECT * FROM " . $elections_table;
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|   if (isset ($where) && $where != "") {
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|     $query .= " " . $where;
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|   }
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|   $query .= " ORDER BY voting_start desc";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result) {
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|     $retval = FALSE;
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|   } else {
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|     $result_array = array ();
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|     while ($buffer = mysql_fetch_assoc ($result)) {
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|       $result_array[] = $buffer;
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|     }
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|     $retval = $result_array;
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|   }
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| 
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|   return $retval;
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| }
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| 
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| function elec_get_current_by_date_desc ($handle) {
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|   $gmdate = gmdate ("Y-m-d H:i:s");
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|   $where = "WHERE '".$gmdate."' >= voting_start AND '".$gmdate."' <= voting_end";
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|   return elec_get_by_date_desc_with_where ($handle, $where);
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| }
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| 
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| function elec_get_previous_by_date_desc ($handle) {
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|   $gmdate = gmdate ("Y-m-d H:i:s");
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|   $where = "WHERE '".$gmdate."' > voting_start AND '".$gmdate."' > voting_end";
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|   return elec_get_by_date_desc_with_where ($handle, $where);
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| }
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| 
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| function elec_verify_email_tmp_token ($handle, $election_id, $email, $tmp_token) {
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|   global $tmp_tokens_table;
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|   global $voters_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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|   $escaped_email = mysql_real_escape_string ($email, $handle);
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|   $escaped_tmp_token = mysql_real_escape_string ($tmp_token, $handle);
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| 
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|   $query = "SELECT COUNT(*) FROM " . $tmp_tokens_table . " AS tt, " . $voters_table . " AS mt";
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|   $query .= " WHERE tt.election_id = '".$escaped_election_id."'";
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|   $query .= " AND tt.tmp_token = '".$escaped_tmp_token."'";
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|   $query .= " AND tt.election_voter_id = mt.id";
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|   $query .= " AND mt.email_address = '".$escaped_email."'";
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| 
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|   $result = mysql_query ($query, $handle);
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|   if (!$result)
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|     return FALSE;
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| 
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|   return (mysql_result ($result, 0, 0) == 1);
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| }
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| 
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| function elec_verify_voted_token ($handle, $verify_token) {
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|   global $anon_tokens_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_verify_token = mysql_real_escape_string ($verify_token, $handle);
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| 
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|   $query = "SELECT id FROM " . $anon_tokens_table;
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|   $query .= " WHERE anon_token = '". $escaped_verify_token."'";
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| 
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|   $result = mysql_query ($query, $handle);
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|   if (!$result)
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|     return 0;
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| 
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|   return mysql_result ($result, 0, 0);
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| }
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| 
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| function elec_choices_get ($handle, $election_id) {
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|   global $choices_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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| 
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|   $query = "SELECT choice, id FROM " . $choices_table;
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|   $query .= " WHERE election_id = '".$escaped_election_id."'";
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|   $query .= " ORDER BY id";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result) {
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|     $retval = FALSE;
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|   } else {
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|     $result_array = array ();
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|     while ($buffer = mysql_fetch_assoc ($result)) {
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|       $result_array[] = $buffer;
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|     }
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|     $retval = $result_array;
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|   }
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| 
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|   return $retval;
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| }
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| 
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| function elec_choices_get_by_anon_token_id ($handle, $anon_token_id) {
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|   global $choices_table;
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|   global $anon_tokens_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $query = "SELECT c.choice, c.id FROM ";
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|   $query .=  $choices_table . " c, " . $anon_tokens_table . " a";
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|   $query .= " WHERE c.election_id = a.election_id";
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|   $query .= "   AND a.id = " . $anon_token_id;
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|   $query .= " ORDER BY c.id";
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| 
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|   
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result) {
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|     $retval = FALSE;
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|   } else {
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|     $result_array = array ();
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|     while ($buffer = mysql_fetch_assoc ($result)) {
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|       $result_array[] = $buffer;
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|     }
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|     $retval = $result_array;
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|   }
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|   return $retval;
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| }
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| 
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| function elec_verify_elections ($choices) {
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|   if ($choices === FALSE || count ($choices) <= 1)
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|     return FALSE;
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| 
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|   return TRUE;
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| }
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| 
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| function elec_get_election ($handle, $election_id) {
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|   global $elections_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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| 
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|   $query = "SELECT * FROM " . $elections_table;
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|   $query .= " WHERE id = '".$escaped_election_id."'";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result)
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|     return FALSE;
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| 
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|   return mysql_fetch_assoc ($result);
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| }
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| 
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| function elec_get_results ($handle, $election_id) {
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|   global $results_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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| 
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|   $query = "SELECT result FROM " . $results_table;
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|   $query .= " WHERE election_id = '".$escaped_election_id."'";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result)
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|     return FALSE;
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| 
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|   return mysql_fetch_assoc ($result);
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| }
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| 
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| function elec_election_is_current ($election) {
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|   $gmdate = gmdate ("Y-m-d H:i:s");
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|   return ($gmdate >= $election["voting_start"] && $gmdate <= $election["voting_end"]);
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| }
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| 
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| function elec_election_has_ended ($election) {
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|   $gmdate = gmdate ("Y-m-d H:i:s");
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|   return ($gmdate > $election["voting_start"] && $gmdate > $election["voting_end"]);
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| }
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| 
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| function elec_election_get_type ($election) {
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|   if ($election["type"] == "referendum")
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|     return "referendum";
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|   else
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|     return "election";
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| }
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| 
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| function elec_vote_get_votes_from_post ($choices) {
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|   $votes_array = array ();
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|   $index=0;
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|   foreach ($choices as $choice) {
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|     $index++;
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|     $name = "pref".$index;
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|     if (isset ($_POST[$name]) && $_POST[$name] != "") {
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|       array_push ($votes_array, substr($_POST[$name],4));
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|     }
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|   }
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| 
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|   return $votes_array;
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| }
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| 
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| function elec_verify_vote_is_valid ($choices, $vote, $votes_array) {
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|   
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|   return "";
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| }
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| 
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| function elec_insert_new_anon_token ($handle, $election_id, $anon_token) {
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|   global $anon_tokens_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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|   $escaped_anon_token = mysql_real_escape_string ($anon_token, $handle);
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| 
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|   $query = "SELECT COUNT(*) FROM " . $anon_tokens_table;
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|   $query .= " WHERE anon_token = '".$escaped_anon_token."'";
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| 
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|   $result = mysql_query ($query, $handle);
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|   if (!$result)
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|     return FALSE;
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| 
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|   if (mysql_result ($result, 0, 0) != 0)
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|     return FALSE;
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| 
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|   $query = "INSERT INTO " . $anon_tokens_table . " (anon_token, election_id)";
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|   $query .= " VALUES ('".$escaped_anon_token."', '".$escaped_election_id."')";
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| 
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|   $result = mysql_query ($query, $handle);
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|   if (!$result)
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|     return FALSE;
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| 
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|   return mysql_insert_id ($handle);
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| }
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| 
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| function elec_insert_new_vote ($handle, $anon_token_id, $vote, $preference) {
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|   global $votes_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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|   
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|   error_log($vote, 0);
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|   $escaped_vote = mysql_real_escape_string ($vote, $handle);
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|   $escaped_anon_token_id = mysql_real_escape_string ($anon_token_id, $handle);
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| 
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|   $query = "INSERT INTO " . $votes_table . " (choice_id, anon_id, preference)";
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|   $query .= " VALUES ('".$escaped_vote."', '".$escaped_anon_token_id."', '".$preference."')";
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| 
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|   error_log($query, 0);
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|   $result = mysql_query ($query, $handle);
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|   if (!$result)
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|     return FALSE;
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| 
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|   return TRUE;
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| }
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| 
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| function elec_sql_remove_tmp_token ($handle, $election_id, $email, $tmp_token) {
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|   global $voters_table;
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|   global $tmp_tokens_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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|   $escaped_email = mysql_real_escape_string ($email, $handle);
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|   $escaped_tmp_token = mysql_real_escape_string ($tmp_token, $handle);
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| 
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|   /* In MySQL < 4.1, you'd do "DELETE FROM " . $tmp_tokens_table */
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|   $query = "DELETE FROM tt";
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|   $query .= " USING ". $tmp_tokens_table . " AS tt, " . $voters_table . " AS mt";
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|   $query .= " WHERE tt.election_id = '".$escaped_election_id."'";
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|   $query .= " AND tt.tmp_token = '".$escaped_tmp_token."'";
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|   $query .= " AND tt.election_voter_id = mt.id";
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|   $query .= " AND mt.email_address = '".$escaped_email."'";
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| 
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|   $result = mysql_query ($query, $handle);
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|   if (!$result)
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|     return FALSE;
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| 
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|   return TRUE;
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| }
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| 
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| function elec_get_anon_tokens_for_election ($handle, $election_id) {
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|   global $anon_tokens_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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| 
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|   $query = "SELECT * FROM " . $anon_tokens_table;
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|   $query .= " WHERE election_id = '".$escaped_election_id."'";
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|   $query .= " ORDER BY anon_token";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result) {
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|     $retval = FALSE;
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|   } else {
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|     $result_array = array ();
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|     while ($buffer = mysql_fetch_assoc ($result)) {
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|       $result_array[] = $buffer;
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|     }
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|     $retval = $result_array;
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|   }
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| 
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|   return $retval;
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| }
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| 
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| /* Leaving this here as legacy code. Unused for preferential voting. */
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| function elec_get_results_election ($handle, $election_id) {
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|   global $anon_tokens_table;
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|   global $votes_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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| 
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|   $query = "SELECT choice_id, COUNT(choice_id) AS total_choice FROM " . $anon_tokens_table . " AS att, " . $votes_table . " AS vt";
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|   $query .= " WHERE att.election_id = '".$escaped_election_id."'";
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|   $query .= " AND att.id = vt.anon_id";
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|   /* -1 is not a valid value: it's the default value for referenda.
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|    * It's a blank vote. There was a bug that let this choice be saved in the
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|    * votes, but we don't need it there since we already have the anonymous
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|    * token as a proof of the blank vote. */
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|   $query .= " AND vt.choice_id != '-1'";
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|   $query .= " GROUP BY choice_id";
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|   $query .= " ORDER BY total_choice DESC";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
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|   if (!$result) {
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|     $retval = FALSE;
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|   } else {
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|     $result_array = array ();
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|     while ($buffer = mysql_fetch_assoc ($result)) {
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|       $result_array[] = $buffer;
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|     }
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|     $retval = $result_array;
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|   }
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| 
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|   return $retval;
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| }
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| 
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| function elec_get_blank_votes_election ($handle, $election_id) {
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|   global $anon_tokens_table;
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|   global $votes_table;
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| 
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|   if ($handle === FALSE)
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|     return FALSE;
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| 
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|   $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
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| 
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|   $query = "SELECT COUNT(att.id) AS total_blank FROM " . $anon_tokens_table . " AS att, " . $votes_table . " AS vt";
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|   $query .= " WHERE att.election_id = '".$escaped_election_id."'";
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|   $query .= " AND (NOT EXISTS (";
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|   $query .= "                  SELECT anon_id FROM " . $anon_tokens_table . " AS att, " . $votes_table . " AS vt";
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|   $query .= "                   WHERE att.id = vt.anon_id";
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|   $query .= "      ) OR (vt.choice_id = '-1' AND att.id = vt.anon_id))";
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| 
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|   $result = mysql_query ($query, $handle);
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| 
 | |
|   if (!$result)
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|     return FALSE;
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| 
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|   return mysql_result ($result, 0, 0);
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| }
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| 
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| function elec_get_votes_for_anon_token ($handle, $anon_token_id) {
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|   global $votes_table;
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| 
 | |
|   if ($handle === FALSE)
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|     return FALSE;
 | |
| 
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|   $escaped_anon_token_id = mysql_real_escape_string ($anon_token_id, $handle);
 | |
| 
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|   $query = "SELECT choice_id,preference FROM " . $votes_table;
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|   $query .= " WHERE anon_id = $anon_token_id";
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|   /* -1 is not a valid value: it's the default value for referenda.
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|    * It's a blank vote. There was a bug that let this choice be saved in the
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|    * votes, but we don't need it there since we already have the anonymous
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|    * token as a proof of the blank vote. */
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|   $query .= " AND choice_id != '-1'";
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|   $query .= " ORDER BY preference";
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| 
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|   $result = mysql_query ($query, $handle);
 | |
| 
 | |
|   if (!$result) {
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|     $retval = FALSE;
 | |
|   } else {
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|     $result_array = array ();
 | |
|     while ($buffer = mysql_fetch_assoc ($result)) {
 | |
|       $result_array[] = $buffer;
 | |
|     }
 | |
|     $retval = $result_array;
 | |
|   }
 | |
| 
 | |
|   return $retval;
 | |
| }
 | |
| 
 | |
| ?>
 |