failure-lambda/dist/chunk-VSWURCYJ.js

Failure injection for AWS Lambda - chaos engineering made simple

#!/usr/bin/env node
import {
  fromBase64,
  streamCollector,
  toBase64,
  toHex
} from "./chunk-W3M6RT2M.js";
import {
  fromArrayBuffer,
  toUtf8
} from "./chunk-VACN7GDP.js";

// node_modules/@smithy/util-stream/dist-es/sdk-stream-mixin.js
import { Readable } from "stream";

// node_modules/@smithy/fetch-http-handler/dist-es/stream-collector.js
var streamCollector2 = async (stream) => {
  if (typeof Blob === "function" && stream instanceof Blob || stream.constructor?.name === "Blob") {
    if (Blob.prototype.arrayBuffer !== void 0) {
      return new Uint8Array(await stream.arrayBuffer());
    }
    return collectBlob(stream);
  }
  return collectStream(stream);
};
async function collectBlob(blob) {
  const base64 = await readToBase64(blob);
  const arrayBuffer = fromBase64(base64);
  return new Uint8Array(arrayBuffer);
}
async function collectStream(stream) {
  const chunks = [];
  const reader = stream.getReader();
  let isDone = false;
  let length = 0;
  while (!isDone) {
    const { done, value } = await reader.read();
    if (value) {
      chunks.push(value);
      length += value.length;
    }
    isDone = done;
  }
  const collected = new Uint8Array(length);
  let offset = 0;
  for (const chunk of chunks) {
    collected.set(chunk, offset);
    offset += chunk.length;
  }
  return collected;
}
function readToBase64(blob) {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.onloadend = () => {
      if (reader.readyState !== 2) {
        return reject(new Error("Reader aborted too early"));
      }
      const result = reader.result ?? "";
      const commaIndex = result.indexOf(",");
      const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
      resolve(result.substring(dataOffset));
    };
    reader.onabort = () => reject(new Error("Read aborted"));
    reader.onerror = () => reject(reader.error);
    reader.readAsDataURL(blob);
  });
}

// node_modules/@smithy/util-stream/dist-es/stream-type-check.js
var isReadableStream = (stream) => typeof ReadableStream === "function" && (stream?.constructor?.name === ReadableStream.name || stream instanceof ReadableStream);

// node_modules/@smithy/util-stream/dist-es/sdk-stream-mixin.browser.js
var ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
var sdkStreamMixin = (stream) => {
  if (!isBlobInstance(stream) && !isReadableStream(stream)) {
    const name = stream?.__proto__?.constructor?.name || stream;
    throw new Error(`Unexpected stream implementation, expect Blob or ReadableStream, got ${name}`);
  }
  let transformed = false;
  const transformToByteArray = async () => {
    if (transformed) {
      throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
    }
    transformed = true;
    return await streamCollector2(stream);
  };
  const blobToWebStream = (blob) => {
    if (typeof blob.stream !== "function") {
      throw new Error("Cannot transform payload Blob to web stream. Please make sure the Blob.stream() is polyfilled.\nIf you are using React Native, this API is not yet supported, see: https://react-native.canny.io/feature-requests/p/fetch-streaming-body");
    }
    return blob.stream();
  };
  return Object.assign(stream, {
    transformToByteArray,
    transformToString: async (encoding) => {
      const buf = await transformToByteArray();
      if (encoding === "base64") {
        return toBase64(buf);
      } else if (encoding === "hex") {
        return toHex(buf);
      } else if (encoding === void 0 || encoding === "utf8" || encoding === "utf-8") {
        return toUtf8(buf);
      } else if (typeof TextDecoder === "function") {
        return new TextDecoder(encoding).decode(buf);
      } else {
        throw new Error("TextDecoder is not available, please make sure polyfill is provided.");
      }
    },
    transformToWebStream: () => {
      if (transformed) {
        throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
      }
      transformed = true;
      if (isBlobInstance(stream)) {
        return blobToWebStream(stream);
      } else if (isReadableStream(stream)) {
        return stream;
      } else {
        throw new Error(`Cannot transform payload to web stream, got ${stream}`);
      }
    }
  });
};
var isBlobInstance = (stream) => typeof Blob === "function" && stream instanceof Blob;

// node_modules/@smithy/util-stream/dist-es/sdk-stream-mixin.js
var ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED2 = "The stream has already been transformed.";
var sdkStreamMixin2 = (stream) => {
  if (!(stream instanceof Readable)) {
    try {
      return sdkStreamMixin(stream);
    } catch (e) {
      const name = stream?.__proto__?.constructor?.name || stream;
      throw new Error(`Unexpected stream implementation, expect Stream.Readable instance, got ${name}`);
    }
  }
  let transformed = false;
  const transformToByteArray = async () => {
    if (transformed) {
      throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED2);
    }
    transformed = true;
    return await streamCollector(stream);
  };
  return Object.assign(stream, {
    transformToByteArray,
    transformToString: async (encoding) => {
      const buf = await transformToByteArray();
      if (encoding === void 0 || Buffer.isEncoding(encoding)) {
        return fromArrayBuffer(buf.buffer, buf.byteOffset, buf.byteLength).toString(encoding);
      } else {
        const decoder = new TextDecoder(encoding);
        return decoder.decode(buf);
      }
    },
    transformToWebStream: () => {
      if (transformed) {
        throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED2);
      }
      if (stream.readableFlowing !== null) {
        throw new Error("The stream has been consumed by other callbacks.");
      }
      if (typeof Readable.toWeb !== "function") {
        throw new Error("Readable.toWeb() is not supported. Please ensure a polyfill is available.");
      }
      transformed = true;
      return Readable.toWeb(stream);
    }
  });
};

export {
  sdkStreamMixin2 as sdkStreamMixin
};
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