forked from vern/website
136 lines
5.2 KiB
PHP
136 lines
5.2 KiB
PHP
<!DOCTYPE html>
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<!--
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This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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This program 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 Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
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-->
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<html lang="pt">
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<head>
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<meta name="viewport" content="width=device-width">
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<meta charset="UTF-8">
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<meta name="description" content="Sign up to the ~vern mailing list">
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<link rel="stylesheet" href="//gcdn.vern.cc/vernsite/style.css">
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<title>Mailing List | ~vern</title>
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</head>
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<body>
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<!--#include file="nav.php" -->
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<?php
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function sanitize($str) {
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$str = trim($str);
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$str = stripslashes($str);
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$str = htmlspecialchars($str);
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$str = str_replace("\r", '', $str);
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return $str;
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}
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$err = $email = $code = $code_err = '';
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$confirmed = false;
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if (!empty($_GET['action'])) {
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if (!empty($_GET['email'])) {
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if (filter_var(sanitize($_GET['email']), FILTER_VALIDATE_EMAIL)) {
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if (preg_match("/^" . preg_quote($_GET['email']) . "$/m", file_get_contents("/var/spool/list")) === 1) {
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if ($_GET['action'] == "unsub")
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$email = sanitize($_GET['email']);
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else $err = "E-mail já está na lista";
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} else {
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if ($_GET['action'] == "sub")
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$email = sanitize($_GET['email']);
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else $err = "E-mail não está na lista";
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}
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} else $err = "E-mail inválido";
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} else $err = "E-mail necessário";
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}
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$filename = "/tmp/list-code-" . $email;
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if (empty($err)) {
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if (!empty($_GET['code'])) {
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if (file_get_contents($filename) == $_GET['code']) {
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if ($_GET['action'] == "sub") {
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file_put_contents("/var/spool/list", $email . PHP_EOL, FILE_APPEND);
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} else {
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$contents = file_get_contents("/var/spool/list");
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$contents = preg_replace("/^" . preg_quote($email) . "$/m", '', $contents);
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$contents = preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", $contents);
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file_put_contents("/var/spool/list", $contents);
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}
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unlink($filename);
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$subject = ($_GET['action'] == "sub" ? "I" : "Desi") . "nscrição confirmada!";
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$headers = "From: announcements@vern.cc\n";
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$headers .= "MIME-Version: 1.0\n";
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$headers .= "Content-type: text/plain\n";
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$message = "Você foi " . ($_GET['action'] == "sub" ? "adicionado à" : "removido da") . " mailing list de anúncios do ~vern";
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mail($email, $subject, $message, $headers);
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$confirmed = true;
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} else {
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$code_err = 'Código incorreto';
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}
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} else {
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$code = substr(md5(rand()), 0, 8);
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$handle = fopen($filename, "w+");
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chmod($filename, 0600);
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fwrite($handle, $code);
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fclose($handle);
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$subject = "Seu código de confirmação";
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$headers = "From: announcements@vern.cc\n";
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$headers .= "MIME-Version: 1.0\n";
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$headers .= "Content-type: text/plain\n";
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$message = "Seu código de confirmação é $code. Não o compartilhe com ninguém.\n\nSe você não fez isso, você pode ignorar essa mensagem.";
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mail($email, $subject, $message, $headers);
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}
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}
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if ((($_GET['action'] != "sub" && $_GET['action'] != "unsub")) || (!empty($err) && empty($code_err))) {
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?>
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<div class=h><h1 id=list>Mailing List</h1> <a aria-hidden=true href=#list>#list</a></div>
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<form method="get" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]) ?>">
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<p>E-mail <span class="red">* <?php echo $err; ?></span>
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<input type="text" name="email"></p>
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<select id="action" name="action">
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<option value="sub">Inscrever</option>
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<option value="unsub">Desinscrever</option>
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</select><br>
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<br>
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<span><input type="submit" value="Submit" style="width:100px;height:40px;font-size:20px"></span>
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</form><br>
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<?php
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} else if (!$confirmed) {
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?>
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<div class=h><h1 id=confirm>Confirmar ação</h1> <a aria-hidden=true href=#confirm>#confirm</a></div>
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<p>Um código de confirmação foi enviado para <?php echo htmlspecialchars($email); ?></p>
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<form method="get" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]) ?>">
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<input type="text" id="email" name="email" value="<?php echo htmlspecialchars($email); ?>" hidden>
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<p>Código <span class="red">* <?php echo $code_err; ?></span>
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<input type="text" name="code"></p>
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<select id="action" name="action" hidden>
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<option value="<?php echo htmlspecialchars($_GET['action']); ?>"></option>
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</select>
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<br>
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<span><input type="submit" value="Confirm" style="width:100px;height:40px;font-size:20px"></span>
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</form><br>
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<?php
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} else {
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?>
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<meta http-equiv="refresh" content="5;url=/pt-BR/" />
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<div class=h><h1 id=thanks>Confirmado!</h1> <a aria-hidden=true href=#thanks>#thanks</a></div>
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<p>Você também recebeu um e-mail confirmando a ação.</p>
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<p>Você será redirecionado de volta para a <a href=/pt-BR/>página principal</a> em 5 segundos.</p>
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<?php
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}
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?>
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<!--#include file="footer.cgi" -->
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</body>
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</html>
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