Create a verification page,
so that voters can see how they voted online before the election actually ends.
This commit is contained in:
Bradley M. Kuhn
parent
983e846593
commit
80c0efa2d9
3 changed files with 100 additions and 0 deletions
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@ -8,6 +8,7 @@ page_SCRIPTS = \
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results.php \
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results.php \
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votes.php \
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votes.php \
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vote.php \
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vote.php \
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verify.php \
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overview.html \
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overview.html \
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blt.php
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blt.php
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@ -150,6 +150,24 @@ function elec_verify_email_tmp_token ($handle, $election_id, $email, $tmp_token)
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return (mysql_result ($result, 0, 0) == 1);
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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 $anon_tokens_table;
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if ($handle === FALSE)
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return FALSE;
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$escaped_verify_token = mysql_real_escape_string ($verify_token, $handle);
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$query = "SELECT id FROM " . $anon_tokens_table;
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$query .= " WHERE anon_token = '". $escaped_verify_token."'";
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$result = mysql_query ($query, $handle);
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if (!$result)
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return 0;
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return mysql_result ($result, 0, 0);
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}
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function elec_choices_get ($handle, $election_id) {
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function elec_choices_get ($handle, $election_id) {
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global $choices_table;
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global $choices_table;
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81
vote/verify.wml
Normal file
81
vote/verify.wml
Normal file
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@ -0,0 +1,81 @@
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html>
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<head>
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<link rel="stylesheet" type="text/css" href="vote.css" />
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<title>The GNOME Foundation - Vote Verification</title>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<link rel="stylesheet" type="text/css" href="vote.css" />
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</head>
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<body>
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<?php
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require_once ("include/election-sql.php");
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$error = "";
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$handle = elec_sql_open ();
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if ($handle === FALSE) {
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$error .= "Can not open the database.<br />\n";
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$step = 0;
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}
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$verify_token = "";
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if (($_POST["verify_token"])) {
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$verify_token = $_POST["verify_token"];
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}
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$anon_token_id = elec_verify_voted_token ($handle, $verify_token);
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if ($verify_token && $anon_token_id > 0) {
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$error .= "The vote verification token provided does not appear in the votes database. Please check that you entered it correctly.<br />\n";
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}
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if (!$verify_token || $error) {
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echo "<h2>Verify your ballot</h2>\n";
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echo "<p>Please enter your ballot verification token.</p>\n";
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echo "<form action=\"".htmlspecialchars($_SERVER['PHP_SELF'], ENT_QUOTES)."\" method=\"post\"";
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echo "<div class=\"votedata\">\n";
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echo "<p><label for=\"verify_token\">Verification Token: </label><input type=\"text\" name=\"verify_token\" value=\"".htmlspecialchars ($verify_token)."\" /></p>\n";
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echo "</div>\n";
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echo " <input type=\"submit\" value=\"Submit\" />\n";
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echo "</form>\n";
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} else {
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$votes = elec_get_votes_for_anon_token ($handle, $anon_token_id);
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echo "<tr class=\"".$class."\">\n";
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echo "<td><span class=\"token\">".htmlspecialchars($verify_token)."</span></td>\n";
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echo "<td>";
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if ($votes === FALSE) {
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echo "Can not access votes<br />for this anonymous token.";
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$error .= "Can not get votes for anonymous token ".htmlspecialchars($anon_token["anon_token"])."<br />\n";
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} else if (count ($votes) == 0) {
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echo "This voter chose to vote for<br />none of the possible choices.";
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} else {
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echo "<ol>";
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foreach ($votes as $vote) {
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if (array_key_exists ($vote["choice_id"], $choices_name))
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echo "<li><em>".htmlspecialchars($votes["preference"])." ".htmlspecialchars($choices_name[$vote["choice_id"]])."</em></li>\n";
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else {
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echo "<li><em>Unknown value (".htmlspecialchars($vote["choice_id"]).")</em></li>\n";
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$error .= "There was an unkown vote for anonymous token ".htmlspecialchars($anon_token["anon_token"]).": ".htmlspecialchars($vote["choice_id"])."<br />\n";
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}
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}
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echo "</ol>";
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}
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echo "</td>\n";
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echo "</tr>\n";
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echo "</table>\n";
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}
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global $committee_name;
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global $committee_email;
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if (isset ($error) && $error != "") {
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echo "<div class=\"error\">".$error."</div>\n";;
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echo "<p>If you don't understand the error, you should probably contact the $committee_name, which can be reached at <a href=\"mailto:$committee_email\">$committee_email</a>.</p>\n";
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}
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if (isset ($handle))
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elec_sql_close ($handle);
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?>
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