eh-downloader/routes/api/log.ts

import { Handlers } from "$fresh/server.ts";
import { return_data, return_error } from "../../server/utils.ts";
import { User, UserPermission } from "../../db.ts";
import { parse_int } from "../../server/parse_form.ts";
import { base_logger, LogLevel } from "../../utils/logger.ts";

export const handler: Handlers = {
    async GET(req, ctx) {
        const user = <User | undefined> ctx.state.user;
        if (
            user && !user.is_admin &&
            !(Number(user.permissions) & UserPermission.QueryLog)
        ) {
            return return_error(403, "Permission denied.");
        }
        const u = new URL(req.url);
        const params = u.searchParams;
        const page = await parse_int(params.get("page"), null);
        const limit = await parse_int(params.get("limit"), 50);
        const offset = await parse_int(params.get("offset"), 0);
        const type = params.get("type");
        let min_level = await parse_int(
            params.get("min_level"),
            null,
        );
        const allowed_level = params.get("allowed_level")?.split(",").map((x) =>
            parseInt(x)
        ).filter((x) => !isNaN(x));
        if (!allowed_level && min_level === null) {
            min_level = LogLevel.Log;
        }
        const datas = page === null
            ? base_logger.list(offset, limit, type, min_level, allowed_level)
            : base_logger.list_page(
                page,
                limit,
                type,
                min_level,
                allowed_level,
            );
        const count = page === null
            ? undefined
            : base_logger.count(type, min_level, allowed_level);
        return return_data({ datas, count });
    },
};