+.copy-feedback {
+ position: fixed;
+ top: 1rem;
+ left: 50%;
+ transform: translateX(-50%) translateY(-1rem);
+ background: #3B82F6;
+ color: white;
+ padding: 0.75rem 1.5rem;
+ border-radius: 9999px;
+ font-size: 0.875rem;
+ font-weight: 500;
+ opacity: 0;
+ transition: opacity 0.3s, visibility 0.3s;
+ z-index: 50;
+ pointer-events: none;
+ box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+ display: flex;
+ align-items: center;
+ gap: 0.5rem;
+}
- $expirySeconds) {
- echo '
';
- echo '
设置的过期时间超过系统允许的最大值（' . $messageExpiry . '）。
';
- echo '
';
- exit;
- }
+.share-button:active {
+ transform: translateY(1px);
+}
- if (!empty($_POST['message'])) {
- $content = $_POST['message'];
-
- $verificationCode = generateVerificationCode();
- $hashedVerificationCode = hashVerificationCode($verificationCode);
- $hashedSenderPassword = hashPassword($senderPassword);
-
- $randomKey = generateEncryptionKey();
- $encryptedMessage = encrypt($content, $randomKey);
- $encryptedSenderName = encrypt($senderName, $randomKey);
- $encryptedSenderNote = encrypt($senderNote, $randomKey);
-
- $keyEncryptedWithVerificationCode = encrypt($randomKey, $hashedVerificationCode);
- $keyEncryptedWithSenderPassword = $hashedSenderPassword ? encrypt($randomKey, $hashedSenderPassword) : null;
-
- $filename = generateRandomFilename();
-
- if (!file_exists('messages')) mkdir('messages', 0755, true);
-
- $messageData = [
- 'senderNameEncrypted' => $encryptedSenderName,
- 'senderNoteEncrypted' => $encryptedSenderNote,
- 'senderPasswordHash' => $hashedSenderPassword,
- 'messageEncrypted' => $encryptedMessage,
- 'keyEncryptedWithVerificationCode' => $keyEncryptedWithVerificationCode,
- 'keyEncryptedWithSenderPassword' => $keyEncryptedWithSenderPassword,
- 'hashedVerificationCode' => $hashedVerificationCode,
- 'createdAt' => time(),
- 'expirySeconds' => $userExpirySeconds > 0 ? $userExpirySeconds : $expirySeconds
- ];
-
- file_put_contents($filename, json_encode($messageData), LOCK_EX);
-
- $messageLink = "?file=" . urlencode(basename($filename)) . "&code=" . urlencode($verificationCode);
-
- echo '
';
- echo '
您的阅后即焚链接
';
- echo '
';
- echo '' . htmlspecialchars($siteDomain) . '/' . htmlspecialchars($messageLink) . '';
- echo '
';
- echo '
';
- echo '';
- } else {
- echo '
';
- echo '
消息不能为空。
';
- echo '
';
- exit;
- }
- } else if (isset($_GET['file']) && isset($_GET['code'])) {
- $filename = basename($_GET['file']);
- $verificationCode = sanitizeInput($_GET['code']);
+.share-button i {
+ font-size: 0.875rem;
+}
+
+.copy-feedback {
+ position: fixed;
+ top: 1rem;
+ left: 50%;
+ transform: translateX(-50%) translateY(-1rem);
+ background: #3B82F6;
+ color: white;
+ padding: 0.75rem 1.5rem;
+ border-radius: 9999px;
+ font-size: 0.875rem;
+ font-weight: 500;
+ opacity: 0;
+ transition: opacity 0.3s, visibility 0.3s;
+ z-index: 50;
+ pointer-events: none;
+ box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+ display: flex;
+ align-items: center;
+ gap: 0.5rem;
+}
+
+.copy-feedback.show {
+ opacity: 1;
+ transform: translateX(-50%) translateY(0);
+}
+
+.options-container {
+ display: flex;
+ align-items: center;
+ gap: 20px;
+ margin-bottom: 10px;
+}
+
+@media (max-width: 640px) {
+ .options-container {
+ flex-direction: column;
+ gap: 15px;
+ }
+
+ .options-container button {
+ width: 100%;
+ }
+}
+
+.option-item {
+ display: flex;
+ align-items: center;
+ white-space: nowrap;
+}
+
+.tab-active {
+ border-bottom: 2px solid #3b82f6;
+ color: #3b82f6;
+ background-color: #f8fafc;
+}
+
+.editor-container {
+ border: 1px solid #e5e7eb;
+ border-radius: 0.375rem;
+ background-color: white;
+ overflow: hidden;
+}
- if (file_exists("messages/$filename")) {
- $messageData = json_decode(file_get_contents("messages/$filename"), true);
+.editor-toolbar {
+ display: flex;
+ justify-content: space-between;
+ align-items: center;
+ padding: 0.5rem;
+ border-bottom: 1px solid #e5e7eb;
+ background-color: #f8fafc;
+}
+
+.editor-tabs {
+ display: flex;
+ gap: 1px;
+}
+
+.editor-tab {
+ padding: 0.5rem 1rem;
+ font-size: 0.875rem;
+ cursor: pointer;
+ border: none;
+ background: none;
+}
+
+.editor-options {
+ display: flex;
+ align-items: center;
+ gap: 1rem;
+}
+
+.content-area {
+ padding: 1rem;
+}
+
+.editor-content {
+ width: 100%;
+ height: 200px;
+ border: 1px solid #e5e7eb;
+ border-radius: 0.5rem;
+ padding: 0.5rem;
+ background-color: white;
+ overflow-y: auto;
+ position: relative;
+}
+
+#message {
+width: 100%;
+ height: 100%;
+ resize: none;
+ outline: none;
+ border: none;
+ padding: 0;
+ display: block;
+}
+
+.auto-height .editor-container {
+ overflow: visible;
+}
+
+.auto-height .editor-content {
+ height: auto;
+ min-height: 200px;
+ overflow: visible;
+ max-height: none;
+}
+
+.auto-height #message {
+ height: 100% !important;
+}
+
+.markdown {
+ line-height: 1.6;
+}
- $createdAt = isset($messageData['createdAt']) ? $messageData['createdAt'] : 0;
- $currentTime = time();
- $messageExpirySeconds = isset($messageData['expirySeconds']) ? $messageData['expirySeconds'] : $expirySeconds;
+.form-label {
+ display: block;
+ font-size: 1.1rem;
+ font-weight: bold;
+ color: #2d3748;
+ margin-bottom: 0.5rem;
+}
+
+.form-label .optional,
+.form-label .markdown-support,
+.form-label .time-limit {
+ font-size: 0.875rem;
+ font-weight: normal;
+ color: #6B7280;
+ margin-left: 0.5rem;
+}
+
+.form-label .optional,
+.form-label .markdown-support,
+.form-label .time-limit {
+ font-size: 0.875rem;
+ font-weight: normal;
+ color: #6B7280;
+ margin-left: 0.5rem;
+ text-sm text-gray-500 ml-2;
+}
+
+.confirmation-container {
+ max-width: 500px;
+ margin: 2rem auto;
+ padding: 2rem;
+ background: #ffffff;
+ border-radius: 16px;
+ box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
+ text-align: center;
+}
+
+.confirmation-icon {
+ font-size: 3rem;
+ color: #3B82F6;
+ margin-bottom: 1.5rem;
+}
+
+.confirmation-title {
+ font-size: 1.5rem;
+ font-weight: 600;
+ color: #1F2937;
+ margin-bottom: 1rem;
+}
+
+.confirmation-text {
+ color: #4B5563;
+ margin-bottom: 1.5rem;
+ line-height: 1.6;
+}
+
+.confirmation-buttons {
+ display: flex;
+ gap: 1rem;
+ justify-content: center;
+}
+
+.confirm-button {
+ padding: 0.75rem 1.5rem;
+ background: #3B82F6;
+ color: white;
+ border: none;
+ border-radius: 8px;
+ font-weight: 500;
+ cursor: pointer;
+ transition: all 0.2s;
+ min-width: 120px;
+}
+
+.confirm-button:hover {
+ background: #2563EB;
+}
+
+.back-button {
+ padding: 0.75rem 1.5rem;
+ background: #F3F4F6;
+ color: #4B5563;
+ border: none;
+ border-radius: 8px;
+ font-weight: 500;
+ cursor: pointer;
+ transition: all 0.2s;
+ min-width: 120px;
+}
+
+.back-button:hover {
+ background: #E5E7EB;
+}
+
+@media (max-width: 640px) {
+ .confirmation-container {
+ margin: 1rem;
+ padding: 1.5rem;
+ }
+
+ .confirmation-buttons {
+ flex-direction: column;
+ }
+
+ .confirm-button,
+ .back-button {
+ width: 100%;
+ }
+}
+
+.content-box.markdown-mode #displayContent {
+ line-height: 1.6;
+}
+
+.content-box.markdown-mode #displayContent h1 {
+ font-size: 28px;
+ font-weight: bold;
+ margin: 16px 0;
+}
+
+.content-box.markdown-mode #displayContent h2 {
+ font-size: 24px;
+ font-weight: bold;
+ margin: 14px 0;
+}
+
+.content-box.markdown-mode #displayContent h3 {
+ font-size: 20px;
+ font-weight: bold;
+ margin: 12px 0;
+}
+
+.content-box.markdown-mode #displayContent h4 {
+ font-size: 18px;
+ font-weight: bold;
+ margin: 10px 0;
+}
+
+.content-box.markdown-mode #displayContent h5 {
+ font-size: 16px;
+ font-weight: bold;
+ margin: 8px 0;
+}
+
+.content-box.markdown-mode #displayContent h6 {
+ font-size: 14px;
+ font-weight: bold;
+ margin: 8px 0;
+}
+
+.content-box.markdown-mode #displayContent p {
+ font-size: 14px;
+ margin: 8px 0;
+}
+
+.content-box.markdown-mode #displayContent > h1:first-child,
+.content-box.markdown-mode #displayContent > h2:first-child,
+.content-box.markdown-mode #displayContent > h3:first-child,
+.content-box.markdown-mode #displayContent > h4:first-child,
+.content-box.markdown-mode #displayContent > h5:first-child,
+.content-box.markdown-mode #displayContent > h6:first-child {
+ margin-top: 0;
+}
+
+.content-box.markdown-mode #displayContent h1 { font-size: 32px; }
+.content-box.markdown-mode #displayContent h2 { font-size: 24px; }
+.content-box.markdown-mode #displayContent h3 { font-size: 20px; }
+.content-box.markdown-mode #displayContent h4 { font-size: 16px; }
+.content-box.markdown-mode #displayContent h5 { font-size: 14px; }
+.content-box.markdown-mode #displayContent h6 { font-size: 12px; }
+.content-box.markdown-mode #displayContent h1,
+.content-box.markdown-mode #displayContent h2,
+.content-box.markdown-mode #displayContent h3,
+.content-box.markdown-mode #displayContent h4,
+.content-box.markdown-mode #displayContent h5,
+.content-box.markdown-mode #displayContent h6 {
+ font-weight: bold;
+ margin: 16px 0 8px 0;
+}
+
+.content-box.markdown-mode #displayContent h1,
+.preview-content h1 { font-size: 32px; }
+
+.content-box.markdown-mode #displayContent h2,
+.preview-content h2 { font-size: 24px; }
+
+.content-box.markdown-mode #displayContent h3,
+.preview-content h3 { font-size: 20px; }
+
+.content-box.markdown-mode #displayContent h4,
+.preview-content h4 { font-size: 16px; }
+
+.content-box.markdown-mode #displayContent h5,
+.preview-content h5 { font-size: 14px; }
+
+.content-box.markdown-mode #displayContent h6,
+.preview-content h6 { font-size: 12px; }
+
+.content-box.markdown-mode #displayContent h1,
+.content-box.markdown-mode #displayContent h2,
+.content-box.markdown-mode #displayContent h3,
+.content-box.markdown-mode #displayContent h4,
+.content-box.markdown-mode #displayContent h5,
+.content-box.markdown-mode #displayContent h6,
+.preview-content h1,
+.preview-content h2,
+.preview-content h3,
+.preview-content h4,
+.preview-content h5,
+.preview-content h6 {
+ font-weight: bold;
+ margin: 16px 0 8px 0;
+ line-height: 1.4;
+}
+
+.preview-content {
+ padding: 16px;
+ background: #fff;
+ border: 1px solid #e5e7eb;
+ border-radius: 0.5rem;
+ min-height: 100px;
+}
+
+
+
+
+
+
+
+ $expirySeconds) {
+ echo '
';
+ echo '
设置的过期时间超过系统允许的最大值（' . $messageExpiry . '）。
';
+ echo '
';
+ exit;
+ }
+
+ if (!empty($_POST['message'])) {
+ $content = $_POST['message'];
+
+ $verificationCode = generateVerificationCode();
+ $hashedVerificationCode = hashVerificationCode($verificationCode);
+ $hashedSenderPassword = hashPassword($senderPassword);
+
+ $randomKey = generateEncryptionKey();
+ $encryptedMessage = encrypt($content, $randomKey);
+ $encryptedSenderName = encrypt($senderName, $randomKey);
+ $encryptedSenderNote = encrypt($senderNote, $randomKey);
+
+ $keyEncryptedWithVerificationCode = encrypt($randomKey, $hashedVerificationCode);
+ $keyEncryptedWithSenderPassword = $hashedSenderPassword ? encrypt($randomKey, $hashedSenderPassword) : null;
+
+ $filename = generateRandomFilename();
+
+ if (!file_exists('messages')) mkdir('messages', 0755, true);
+
+ $messageData = [
+ 'senderNameEncrypted' => $encryptedSenderName,
+ 'senderNoteEncrypted' => $encryptedSenderNote,
+ 'senderPasswordHash' => $hashedSenderPassword,
+ 'messageEncrypted' => $encryptedMessage,
+ 'keyEncryptedWithVerificationCode' => $keyEncryptedWithVerificationCode,
+ 'keyEncryptedWithSenderPassword' => $keyEncryptedWithSenderPassword,
+ 'hashedVerificationCode' => $hashedVerificationCode,
+ 'createdAt' => time(),
+ 'expirySeconds' => $userExpirySeconds > 0 ? $userExpirySeconds : $expirySeconds
+ ];
+
+ file_put_contents($filename, json_encode($messageData), LOCK_EX);
+
+ $messageLink = "?file=" . urlencode(basename($filename)) . "&code=" . urlencode($verificationCode);
+
+ echo '
+
+
+
+
+ ' . htmlspecialchars($siteDomain) . '/' . htmlspecialchars($messageLink) . '
+
+
+
+
+
+
+ 复制成功
+
+
+ ';
+ } else {
+ echo '
';
+ echo '
消息不能为空。
';
+ echo '
';
+ exit;
+ }
+} else if (isset($_GET['file']) && isset($_GET['code'])) {
+ $filename = basename($_GET['file']);
+ $verificationCode = sanitizeInput($_GET['code']);
+
+ if (file_exists("messages/$filename")) {
+ $messageData = json_decode(file_get_contents("messages/$filename"), true);
+
+ $createdAt = isset($messageData['createdAt']) ? $messageData['createdAt'] : 0;
+ $currentTime = time();
+ $messageExpirySeconds = isset($messageData['expirySeconds']) ? $messageData['expirySeconds'] : $expirySeconds;
+
+ if ($currentTime - $createdAt > $messageExpirySeconds) {
+ unlink("messages/$filename");
+ echo '
';
+ echo '
消息已过期。
';
+ echo '
';
+ exit;
+ }
+
+ if (isset($messageData['hashedVerificationCode']) && hashVerificationCode($verificationCode) === $messageData['hashedVerificationCode']) {
+ if (isset($_GET['confirm'])) {
+ $enteredSenderPassword = isset($_POST['senderPassword']) ? sanitizeInput($_POST['senderPassword']) : '';
+ $hashedEnteredSenderPassword = hashPassword($enteredSenderPassword);
+
+ if (is_null($messageData['senderPasswordHash']) || (!empty($enteredSenderPassword) && $hashedEnteredSenderPassword === $messageData['senderPasswordHash'])) {
+ unlink("messages/$filename");
+
+ if (is_null($messageData['senderPasswordHash'])) {
+ $randomKey = decrypt($messageData['keyEncryptedWithVerificationCode'], $messageData['hashedVerificationCode']);
+ } else {
+ $randomKey = decrypt($messageData['keyEncryptedWithSenderPassword'], $hashedEnteredSenderPassword);
+ }
+
+
+ $decryptedMessage = decrypt($messageData['messageEncrypted'], $randomKey);
+ $decryptedSenderName = decrypt($messageData['senderNameEncrypted'], $randomKey);
+ $decryptedSenderNote = decrypt($messageData['senderNoteEncrypted'], $randomKey);
+
+ echo '
';
+
+ if (!empty($decryptedSenderName) || !empty($decryptedSenderNote)) { ?>
+
+
+
+
+ ()
+
+
+
+
+
+ 无发件人（无备注）
+
+
+
+
+
+ ' :
- nl2br(htmlspecialchars($decryptedMessage))) .
- '
';
- echo '
';
- echo '
';
-
- echo '';
- echo '';
- echo '