DIYgod/RSSHub · error · InvalidParameterError

Invalid region

Error message

Invalid region

What it means

Thrown by the LiveUAMap route when the `:region` path parameter fails the `isValidHost()` check (lib/routes/liveuamap/index.ts:36). The region is interpolated directly into a subdomain URL (`https://${region}.liveuamap.com/`), so it must be a syntactically valid DNS label. `InvalidParameterError` signals a user-supplied parameter problem rather than a server or config fault.

Source

Thrown at lib/routes/liveuamap/index.ts:36

        supportPodcast: false,
        supportScihub: false,
    },
    radar: [
        {
            source: ['liveuamap.com/:region*'],
            target: '/:region',
        },
    ],
    name: '实时消息',
    maintainers: ['CoderSherlock'],
    handler,
};

async function handler(ctx) {
    const region = ctx.req.param('region') ?? 'ukraine';
    const limit = ctx.req.query('limit') ? Number.parseInt(ctx.req.query('limit')) : 50;
    if (!isValidHost(region)) {
        throw new InvalidParameterError('Invalid region');
    }

    const url = `https://${region}.liveuamap.com/`;

    const response = await got({
        method: 'get',
        url,
    });
    const $ = load(response.data);

    const items = $('div#feedler > div')
        .slice(0, limit)
        .toArray()
        .map((item) => {
            const $item = $(item);
            return {
                title: $item.find('div.title').text(),
                description: $item.find('div.title').text(),

View on GitHub (pinned to bed535e087)

Solutions

1. Use a simple alphanumeric region slug such as `ukraine` (default) or another supported LiveUAMap subdomain label.
2. Strip any protocol, path, or punctuation from the region before requesting the route.
3. Confirm the subdomain resolves by checking `https://<region>.liveuamap.com/` in a browser.

Example fix

// before: GET /liveuamap/ukraine/russia
// after:  GET /liveuamap/ukraine

import { isValidHost } from '@/utils/valid-host';
function resolveLiveuamapRegion(region: string | undefined): string {
    const r = (region ?? 'ukraine').trim();
    if (!isValidHost(r)) {
        throw new TypeError(`Invalid LiveUAMap region: '${region}'`);
    }
    return r;
}

function isLiveuamapRegion(value: string): boolean {
    return /^[a-z0-9-]+$/i.test(value) && !value.includes('..');
}

import { InvalidParameterError } from '@/errors/types/invalid-parameter';
try {
    await fetch(`/liveuamap/${region}`);
} catch (e) {
    if (e instanceof InvalidParameterError && /Invalid region/.test(e.message)) {
        return { error: `Region '${region}' is not a valid LiveUAMap subdomain` };
    }
    throw e;
}

When it happens

Trigger: Requesting `/liveuamap/<region>` with a value containing dots, slashes, spaces, underscores, or other characters disallowed in a hostname label; passing an empty string after explicit override; using a region code the host validation rejects (e.g. `russia.ukraine`, `ukraine/`, `en-uk`).

Common situations: Typos in region names; attempts to pass full URLs or paths as the region; locale prefixes copied from other sites; region values that were valid on a different LiveUAMap mirror.

Related errors

• Invalid name
• Invalid category: ${category}
• Invalid Locals content route option. Supported filters are `
• Category not found
• 无效的排序类型

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/6b62e3de89136f7a. Report an issue: GitHub.