68 lines
2.4 KiB
TypeScript
68 lines
2.4 KiB
TypeScript
import { parseDocument, stringify } from "yaml";
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export class CustomProxyValidationError extends Error {}
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function isRecord(value: unknown): value is Record<string, unknown> {
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return Boolean(value) && typeof value === "object" && !Array.isArray(value);
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}
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/** Accept a single proxy, a one-item list, or the legacy `proxies:` wrapper. */
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export function parseCustomProxyYaml(
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source: string,
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): Record<string, unknown> & { name: string; type: string } {
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if (!source.trim()) throw new CustomProxyValidationError("请填写节点 YAML。");
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if (source.length > 128 * 1024)
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throw new CustomProxyValidationError("单个节点 YAML 不能超过 128 KiB。");
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const doc = parseDocument(source, { prettyErrors: false, uniqueKeys: true });
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if (doc.errors.length || doc.warnings.length) {
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// Parser messages can contain credentials from the YAML; do not echo them.
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throw new CustomProxyValidationError(
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"YAML 格式错误，请检查缩进、引号和重复字段。",
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);
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}
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let value: unknown;
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try {
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value = doc.toJS({ maxAliasCount: 100 });
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} catch {
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throw new CustomProxyValidationError(
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"YAML 引用无效或过多，请使用独立的节点配置。",
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);
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}
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if (isRecord(value) && "proxies" in value) value = value.proxies;
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if (Array.isArray(value)) {
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if (value.length !== 1)
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throw new CustomProxyValidationError(
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"每条节点记录只能包含一个 proxy，请将多个节点分别添加。",
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);
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value = value[0];
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}
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if (!isRecord(value))
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throw new CustomProxyValidationError(
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"请填写一个 Clash proxy 对象或单节点列表。",
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);
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if (typeof value.name !== "string" || !value.name.trim()) {
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throw new CustomProxyValidationError(
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"节点 YAML 必须包含非空的 name 字段（字符串）。",
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);
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}
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if (typeof value.type !== "string" || !value.type.trim()) {
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throw new CustomProxyValidationError(
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"节点 YAML 必须包含非空的 type 字段，例如 anytls。",
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);
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}
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return value as Record<string, unknown> & { name: string; type: string };
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}
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/** Re-serialize only for output; stored source and comments remain untouched. */
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export function renderCustomProxyYaml(source: string) {
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return stringify([parseCustomProxyYaml(source)], { lineWidth: 0 }).trimEnd();
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}
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export function extractProxyNameFromYaml(source: string) {
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try {
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return parseCustomProxyYaml(source).name;
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} catch {
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return null;
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}
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}
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