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44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
//#region src/adapter/aws-lambda/conninfo.ts
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/**
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* Get connection information from AWS Lambda
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*
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* Extracts client IP from various Lambda event sources:
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* - API Gateway v1 (REST API): requestContext.identity.sourceIp
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* - API Gateway v2 (HTTP API/Function URLs): requestContext.http.sourceIp
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* - ALB: Falls back to x-forwarded-for header
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*
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* @param c - Context
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* @returns Connection information including remote address
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* @example
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* ```ts
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* import { Hono } from 'hono'
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* import { handle, getConnInfo } from 'hono/aws-lambda'
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*
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* const app = new Hono()
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*
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* app.get('/', (c) => {
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* const info = getConnInfo(c)
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* return c.text(`Your IP: ${info.remote.address}`)
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* })
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*
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* export const handler = handle(app)
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* ```
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* @deprecated `hono/aws-lambda` will be removed in v5. Install `@hono/aws-lambda` and import from there instead.
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*/
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const getConnInfo = (c) => {
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const requestContext = c.env.requestContext;
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let address;
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if ("identity" in requestContext && requestContext.identity?.sourceIp) address = requestContext.identity.sourceIp;
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else if ("http" in requestContext && requestContext.http?.sourceIp) address = requestContext.http.sourceIp;
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else {
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const xff = c.req.header("x-forwarded-for");
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if (xff) {
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const ips = xff.split(",");
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address = ips[ips.length - 1].trim();
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}
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}
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return { remote: { address } };
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};
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//#endregion
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export { getConnInfo };
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