Fully end to end encrypted anonymous chat program. Server only stores public key lookup for users and the encrypted messages. No credentials are transfered to the server, but kept in local browser storage. This allows 100% safe chatting.
https://safechat.ch
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34 lines
1.2 KiB
34 lines
1.2 KiB
<?php |
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try { |
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require_once("usertable.php"); |
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$user = $db->real_escape_string($_REQUEST['user']); |
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$msg = $db->real_escape_string($_REQUEST['msg']); |
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$pgp = gnupg_init(); |
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if (!$pgp) { |
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echo json_encode(array('success' => false, 'txt' => "pgp on server failed")); |
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} else { |
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$q = $db->query("select pubkey from user where name='$user';"); |
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if (!$q || $q->num_rows!=1) { |
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echo json_encode(array('success' => false, 'txt' => "user not found on server")); |
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} else { |
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$pubkey = gnupg_import($pgp, $q->fetch_row()[0]); |
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if (!$pubkey) { |
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echo json_encode(array('success' => false, 'txt' => "wrong identity")); |
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} else { |
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require_once("messagetable.php"); |
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$q = $db->query("insert into message (user, msg) values ('$user', '$msg');"); |
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if ($q) { |
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echo json_encode(array('success' => true, 'txt' => "message stored")); |
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} else { |
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error_log("Error storing message: ".$db->error); |
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echo json_encode(array('success' => false, 'txt' => "storing message failed")); |
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} |
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} |
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} |
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} |
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} catch (Exception $e) { |
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error_log("Error storing message: ".$e->message); |
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echo json_encode(array('success' => false, 'txt' => "storing message failed")); |
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} |
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?>
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