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<?php
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require_once "../lib/db_open.inc.php";
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require_once "./session_init.inc.php";
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$data = json_decode(file_get_contents("php://input"), true);
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$aid = (isset($data["aid"]) ? intval($data["aid"]) : 0);
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$result_set = array(
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"return" => array(
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"code" => 0,
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"message" => "",
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"errorFields" => array(),
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)
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);
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header("Content-Type:application/json; charset=utf-8");
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if (!isset($_SESSION["BBS_uid"]) || $_SESSION["BBS_uid"] == 0)
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{
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$result_set["return"]["code"] = -1;
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$result_set["return"]["message"] = "没有登录";
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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// Begin transaction
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$rs = mysqli_query($db_conn, "SET autocommit=0");
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if ($rs == false)
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{
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$result_set["return"]["code"] = -2;
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$result_set["return"]["message"] = "Mysqli error: " . mysqli_error($db_conn);
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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$rs = mysqli_query($db_conn, "BEGIN");
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if ($rs == false)
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{
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$result_set["return"]["code"] = -2;
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$result_set["return"]["message"] = "Mysqli error: " . mysqli_error($db_conn);
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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// Check privilege
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$sql = "SELECT upload_file.UID, bbs.SID, bbs.excerption FROM upload_file
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LEFT JOIN bbs ON upload_file.ref_AID = bbs.AID
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WHERE upload_file.AID = $aid AND deleted = 0";
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$rs = mysqli_query($db_conn, $sql);
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if ($rs == false)
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{
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$result_set["return"]["code"] = -2;
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$result_set["return"]["message"] = "Query upload_file error: " . mysqli_error($db_conn);
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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if ($row = mysqli_fetch_array($rs))
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{
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$uid = $row["UID"];
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$sid = ($row["SID"] != null ? $row["SID"] : 0);
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$excerption = ($row["excerption"] != null ? $row["excerption"] : 0);
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}
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else
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{
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$result_set["return"]["code"] = 1;
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$result_set["return"]["message"] = "附件不存在";
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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mysqli_free_result($rs);
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if (!($_SESSION["BBS_priv"]->checkpriv($sid, S_POST) &&
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($_SESSION["BBS_priv"]->checkpriv($sid, S_MAN_S) || $_SESSION["BBS_uid"] == $uid)
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&& (!$excerption)))
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{
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$result_set["return"]["code"] = -1;
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$result_set["return"]["message"] = "没有权限";
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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$sql = "UPDATE upload_file SET deleted = 1 WHERE AID = $aid";
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$rs = mysqli_query($db_conn, $sql);
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if ($rs == false)
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{
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$result_set["return"]["code"] = -2;
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$result_set["return"]["message"] = "Update data error: " . mysqli_error($db_conn);
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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// Commit transaction
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$rs = mysqli_query($db_conn, "COMMIT");
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if ($rs == false)
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{
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$result_set["return"]["code"] = -2;
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$result_set["return"]["message"] = "Mysqli error: " . mysqli_error($db_conn);
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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}
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mysqli_close($db_conn);
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exit(json_encode($result_set));
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?>
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