fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit
- 删除重复的旧配额说明块，保留新的当前配额设置显示

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/@smithy/util-stream/dist-cjs/ByteArrayCollector.js

@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ByteArrayCollector = void 0;
+class ByteArrayCollector {
+    allocByteArray;
+    byteLength = 0;
+    byteArrays = [];
+    constructor(allocByteArray) {
+        this.allocByteArray = allocByteArray;
+    }
+    push(byteArray) {
+        this.byteArrays.push(byteArray);
+        this.byteLength += byteArray.byteLength;
+    }
+    flush() {
+        if (this.byteArrays.length === 1) {
+            const bytes = this.byteArrays[0];
+            this.reset();
+            return bytes;
+        }
+        const aggregation = this.allocByteArray(this.byteLength);
+        let cursor = 0;
+        for (let i = 0; i < this.byteArrays.length; ++i) {
+            const bytes = this.byteArrays[i];
+            aggregation.set(bytes, cursor);
+            cursor += bytes.byteLength;
+        }
+        this.reset();
+        return aggregation;
+    }
+    reset() {
+        this.byteArrays = [];
+        this.byteLength = 0;
+    }
+}
+exports.ByteArrayCollector = ByteArrayCollector;

backend/node_modules/@smithy/util-stream/dist-cjs/checksum/ChecksumStream.browser.js

@@ -0,0 +1,7 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChecksumStream = void 0;
+const ReadableStreamRef = typeof ReadableStream === "function" ? ReadableStream : function () { };
+class ChecksumStream extends ReadableStreamRef {
+}
+exports.ChecksumStream = ChecksumStream;

backend/node_modules/@smithy/util-stream/dist-cjs/checksum/ChecksumStream.js

@@ -0,0 +1,53 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChecksumStream = void 0;
+const util_base64_1 = require("@smithy/util-base64");
+const stream_1 = require("stream");
+class ChecksumStream extends stream_1.Duplex {
+    expectedChecksum;
+    checksumSourceLocation;
+    checksum;
+    source;
+    base64Encoder;
+    constructor({ expectedChecksum, checksum, source, checksumSourceLocation, base64Encoder, }) {
+        super();
+        if (typeof source.pipe === "function") {
+            this.source = source;
+        }
+        else {
+            throw new Error(`@smithy/util-stream: unsupported source type ${source?.constructor?.name ?? source} in ChecksumStream.`);
+        }
+        this.base64Encoder = base64Encoder ?? util_base64_1.toBase64;
+        this.expectedChecksum = expectedChecksum;
+        this.checksum = checksum;
+        this.checksumSourceLocation = checksumSourceLocation;
+        this.source.pipe(this);
+    }
+    _read(size) { }
+    _write(chunk, encoding, callback) {
+        try {
+            this.checksum.update(chunk);
+            this.push(chunk);
+        }
+        catch (e) {
+            return callback(e);
+        }
+        return callback();
+    }
+    async _final(callback) {
+        try {
+            const digest = await this.checksum.digest();
+            const received = this.base64Encoder(digest);
+            if (this.expectedChecksum !== received) {
+                return callback(new Error(`Checksum mismatch: expected "${this.expectedChecksum}" but received "${received}"` +
+                    ` in response header "${this.checksumSourceLocation}".`));
+            }
+        }
+        catch (e) {
+            return callback(e);
+        }
+        this.push(null);
+        return callback();
+    }
+}
+exports.ChecksumStream = ChecksumStream;

backend/node_modules/@smithy/util-stream/dist-cjs/checksum/createChecksumStream.browser.js

@@ -0,0 +1,39 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createChecksumStream = void 0;
+const util_base64_1 = require("@smithy/util-base64");
+const stream_type_check_1 = require("../stream-type-check");
+const ChecksumStream_browser_1 = require("./ChecksumStream.browser");
+const createChecksumStream = ({ expectedChecksum, checksum, source, checksumSourceLocation, base64Encoder, }) => {
+    if (!(0, stream_type_check_1.isReadableStream)(source)) {
+        throw new Error(`@smithy/util-stream: unsupported source type ${source?.constructor?.name ?? source} in ChecksumStream.`);
+    }
+    const encoder = base64Encoder ?? util_base64_1.toBase64;
+    if (typeof TransformStream !== "function") {
+        throw new Error("@smithy/util-stream: unable to instantiate ChecksumStream because API unavailable: ReadableStream/TransformStream.");
+    }
+    const transform = new TransformStream({
+        start() { },
+        async transform(chunk, controller) {
+            checksum.update(chunk);
+            controller.enqueue(chunk);
+        },
+        async flush(controller) {
+            const digest = await checksum.digest();
+            const received = encoder(digest);
+            if (expectedChecksum !== received) {
+                const error = new Error(`Checksum mismatch: expected "${expectedChecksum}" but received "${received}"` +
+                    ` in response header "${checksumSourceLocation}".`);
+                controller.error(error);
+            }
+            else {
+                controller.terminate();
+            }
+        },
+    });
+    source.pipeThrough(transform);
+    const readable = transform.readable;
+    Object.setPrototypeOf(readable, ChecksumStream_browser_1.ChecksumStream.prototype);
+    return readable;
+};
+exports.createChecksumStream = createChecksumStream;

backend/node_modules/@smithy/util-stream/dist-cjs/checksum/createChecksumStream.js

@@ -0,0 +1,12 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createChecksumStream = createChecksumStream;
+const stream_type_check_1 = require("../stream-type-check");
+const ChecksumStream_1 = require("./ChecksumStream");
+const createChecksumStream_browser_1 = require("./createChecksumStream.browser");
+function createChecksumStream(init) {
+    if (typeof ReadableStream === "function" && (0, stream_type_check_1.isReadableStream)(init.source)) {
+        return (0, createChecksumStream_browser_1.createChecksumStream)(init);
+    }
+    return new ChecksumStream_1.ChecksumStream(init);
+}

backend/node_modules/@smithy/util-stream/dist-cjs/createBufferedReadable.js

@@ -0,0 +1,60 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createBufferedReadable = createBufferedReadable;
+const node_stream_1 = require("node:stream");
+const ByteArrayCollector_1 = require("./ByteArrayCollector");
+const createBufferedReadableStream_1 = require("./createBufferedReadableStream");
+const stream_type_check_1 = require("./stream-type-check");
+function createBufferedReadable(upstream, size, logger) {
+    if ((0, stream_type_check_1.isReadableStream)(upstream)) {
+        return (0, createBufferedReadableStream_1.createBufferedReadableStream)(upstream, size, logger);
+    }
+    const downstream = new node_stream_1.Readable({ read() { } });
+    let streamBufferingLoggedWarning = false;
+    let bytesSeen = 0;
+    const buffers = [
+        "",
+        new ByteArrayCollector_1.ByteArrayCollector((size) => new Uint8Array(size)),
+        new ByteArrayCollector_1.ByteArrayCollector((size) => Buffer.from(new Uint8Array(size))),
+    ];
+    let mode = -1;
+    upstream.on("data", (chunk) => {
+        const chunkMode = (0, createBufferedReadableStream_1.modeOf)(chunk, true);
+        if (mode !== chunkMode) {
+            if (mode >= 0) {
+                downstream.push((0, createBufferedReadableStream_1.flush)(buffers, mode));
+            }
+            mode = chunkMode;
+        }
+        if (mode === -1) {
+            downstream.push(chunk);
+            return;
+        }
+        const chunkSize = (0, createBufferedReadableStream_1.sizeOf)(chunk);
+        bytesSeen += chunkSize;
+        const bufferSize = (0, createBufferedReadableStream_1.sizeOf)(buffers[mode]);
+        if (chunkSize >= size && bufferSize === 0) {
+            downstream.push(chunk);
+        }
+        else {
+            const newSize = (0, createBufferedReadableStream_1.merge)(buffers, mode, chunk);
+            if (!streamBufferingLoggedWarning && bytesSeen > size * 2) {
+                streamBufferingLoggedWarning = true;
+                logger?.warn(`@smithy/util-stream - stream chunk size ${chunkSize} is below threshold of ${size}, automatically buffering.`);
+            }
+            if (newSize >= size) {
+                downstream.push((0, createBufferedReadableStream_1.flush)(buffers, mode));
+            }
+        }
+    });
+    upstream.on("end", () => {
+        if (mode !== -1) {
+            const remainder = (0, createBufferedReadableStream_1.flush)(buffers, mode);
+            if ((0, createBufferedReadableStream_1.sizeOf)(remainder) > 0) {
+                downstream.push(remainder);
+            }
+        }
+        downstream.push(null);
+    });
+    return downstream;
+}

backend/node_modules/@smithy/util-stream/dist-cjs/createBufferedReadableStream.js

@@ -0,0 +1,103 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createBufferedReadable = void 0;
+exports.createBufferedReadableStream = createBufferedReadableStream;
+exports.merge = merge;
+exports.flush = flush;
+exports.sizeOf = sizeOf;
+exports.modeOf = modeOf;
+const ByteArrayCollector_1 = require("./ByteArrayCollector");
+function createBufferedReadableStream(upstream, size, logger) {
+    const reader = upstream.getReader();
+    let streamBufferingLoggedWarning = false;
+    let bytesSeen = 0;
+    const buffers = ["", new ByteArrayCollector_1.ByteArrayCollector((size) => new Uint8Array(size))];
+    let mode = -1;
+    const pull = async (controller) => {
+        const { value, done } = await reader.read();
+        const chunk = value;
+        if (done) {
+            if (mode !== -1) {
+                const remainder = flush(buffers, mode);
+                if (sizeOf(remainder) > 0) {
+                    controller.enqueue(remainder);
+                }
+            }
+            controller.close();
+        }
+        else {
+            const chunkMode = modeOf(chunk, false);
+            if (mode !== chunkMode) {
+                if (mode >= 0) {
+                    controller.enqueue(flush(buffers, mode));
+                }
+                mode = chunkMode;
+            }
+            if (mode === -1) {
+                controller.enqueue(chunk);
+                return;
+            }
+            const chunkSize = sizeOf(chunk);
+            bytesSeen += chunkSize;
+            const bufferSize = sizeOf(buffers[mode]);
+            if (chunkSize >= size && bufferSize === 0) {
+                controller.enqueue(chunk);
+            }
+            else {
+                const newSize = merge(buffers, mode, chunk);
+                if (!streamBufferingLoggedWarning && bytesSeen > size * 2) {
+                    streamBufferingLoggedWarning = true;
+                    logger?.warn(`@smithy/util-stream - stream chunk size ${chunkSize} is below threshold of ${size}, automatically buffering.`);
+                }
+                if (newSize >= size) {
+                    controller.enqueue(flush(buffers, mode));
+                }
+                else {
+                    await pull(controller);
+                }
+            }
+        }
+    };
+    return new ReadableStream({
+        pull,
+    });
+}
+exports.createBufferedReadable = createBufferedReadableStream;
+function merge(buffers, mode, chunk) {
+    switch (mode) {
+        case 0:
+            buffers[0] += chunk;
+            return sizeOf(buffers[0]);
+        case 1:
+        case 2:
+            buffers[mode].push(chunk);
+            return sizeOf(buffers[mode]);
+    }
+}
+function flush(buffers, mode) {
+    switch (mode) {
+        case 0:
+            const s = buffers[0];
+            buffers[0] = "";
+            return s;
+        case 1:
+        case 2:
+            return buffers[mode].flush();
+    }
+    throw new Error(`@smithy/util-stream - invalid index ${mode} given to flush()`);
+}
+function sizeOf(chunk) {
+    return chunk?.byteLength ?? chunk?.length ?? 0;
+}
+function modeOf(chunk, allowBuffer = true) {
+    if (allowBuffer && typeof Buffer !== "undefined" && chunk instanceof Buffer) {
+        return 2;
+    }
+    if (chunk instanceof Uint8Array) {
+        return 1;
+    }
+    if (typeof chunk === "string") {
+        return 0;
+    }
+    return -1;
+}

backend/node_modules/@smithy/util-stream/dist-cjs/getAwsChunkedEncodingStream.browser.js

@@ -0,0 +1,31 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getAwsChunkedEncodingStream = void 0;
+const getAwsChunkedEncodingStream = (readableStream, options) => {
+    const { base64Encoder, bodyLengthChecker, checksumAlgorithmFn, checksumLocationName, streamHasher } = options;
+    const checksumRequired = base64Encoder !== undefined &&
+        bodyLengthChecker !== undefined &&
+        checksumAlgorithmFn !== undefined &&
+        checksumLocationName !== undefined &&
+        streamHasher !== undefined;
+    const digest = checksumRequired ? streamHasher(checksumAlgorithmFn, readableStream) : undefined;
+    const reader = readableStream.getReader();
+    return new ReadableStream({
+        async pull(controller) {
+            const { value, done } = await reader.read();
+            if (done) {
+                controller.enqueue(`0\r\n`);
+                if (checksumRequired) {
+                    const checksum = base64Encoder(await digest);
+                    controller.enqueue(`${checksumLocationName}:${checksum}\r\n`);
+                    controller.enqueue(`\r\n`);
+                }
+                controller.close();
+            }
+            else {
+                controller.enqueue(`${(bodyLengthChecker(value) || 0).toString(16)}\r\n${value}\r\n`);
+            }
+        },
+    });
+};
+exports.getAwsChunkedEncodingStream = getAwsChunkedEncodingStream;

backend/node_modules/@smithy/util-stream/dist-cjs/getAwsChunkedEncodingStream.js

@@ -0,0 +1,41 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getAwsChunkedEncodingStream = getAwsChunkedEncodingStream;
+const node_stream_1 = require("node:stream");
+const getAwsChunkedEncodingStream_browser_1 = require("./getAwsChunkedEncodingStream.browser");
+const stream_type_check_1 = require("./stream-type-check");
+function getAwsChunkedEncodingStream(stream, options) {
+    const readable = stream;
+    const readableStream = stream;
+    if ((0, stream_type_check_1.isReadableStream)(readableStream)) {
+        return (0, getAwsChunkedEncodingStream_browser_1.getAwsChunkedEncodingStream)(readableStream, options);
+    }
+    const { base64Encoder, bodyLengthChecker, checksumAlgorithmFn, checksumLocationName, streamHasher } = options;
+    const checksumRequired = base64Encoder !== undefined &&
+        checksumAlgorithmFn !== undefined &&
+        checksumLocationName !== undefined &&
+        streamHasher !== undefined;
+    const digest = checksumRequired ? streamHasher(checksumAlgorithmFn, readable) : undefined;
+    const awsChunkedEncodingStream = new node_stream_1.Readable({
+        read: () => { },
+    });
+    readable.on("data", (data) => {
+        const length = bodyLengthChecker(data) || 0;
+        if (length === 0) {
+            return;
+        }
+        awsChunkedEncodingStream.push(`${length.toString(16)}\r\n`);
+        awsChunkedEncodingStream.push(data);
+        awsChunkedEncodingStream.push("\r\n");
+    });
+    readable.on("end", async () => {
+        awsChunkedEncodingStream.push(`0\r\n`);
+        if (checksumRequired) {
+            const checksum = base64Encoder(await digest);
+            awsChunkedEncodingStream.push(`${checksumLocationName}:${checksum}\r\n`);
+            awsChunkedEncodingStream.push(`\r\n`);
+        }
+        awsChunkedEncodingStream.push(null);
+    });
+    return awsChunkedEncodingStream;
+}

backend/node_modules/@smithy/util-stream/dist-cjs/headStream.browser.js

@@ -0,0 +1,34 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.headStream = headStream;
+async function headStream(stream, bytes) {
+    let byteLengthCounter = 0;
+    const chunks = [];
+    const reader = stream.getReader();
+    let isDone = false;
+    while (!isDone) {
+        const { done, value } = await reader.read();
+        if (value) {
+            chunks.push(value);
+            byteLengthCounter += value?.byteLength ?? 0;
+        }
+        if (byteLengthCounter >= bytes) {
+            break;
+        }
+        isDone = done;
+    }
+    reader.releaseLock();
+    const collected = new Uint8Array(Math.min(bytes, byteLengthCounter));
+    let offset = 0;
+    for (const chunk of chunks) {
+        if (chunk.byteLength > collected.byteLength - offset) {
+            collected.set(chunk.subarray(0, collected.byteLength - offset), offset);
+            break;
+        }
+        else {
+            collected.set(chunk, offset);
+        }
+        offset += chunk.length;
+    }
+    return collected;
+}

backend/node_modules/@smithy/util-stream/dist-cjs/headStream.js

@@ -0,0 +1,42 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.headStream = void 0;
+const stream_1 = require("stream");
+const headStream_browser_1 = require("./headStream.browser");
+const stream_type_check_1 = require("./stream-type-check");
+const headStream = (stream, bytes) => {
+    if ((0, stream_type_check_1.isReadableStream)(stream)) {
+        return (0, headStream_browser_1.headStream)(stream, bytes);
+    }
+    return new Promise((resolve, reject) => {
+        const collector = new Collector();
+        collector.limit = bytes;
+        stream.pipe(collector);
+        stream.on("error", (err) => {
+            collector.end();
+            reject(err);
+        });
+        collector.on("error", reject);
+        collector.on("finish", function () {
+            const bytes = new Uint8Array(Buffer.concat(this.buffers));
+            resolve(bytes);
+        });
+    });
+};
+exports.headStream = headStream;
+class Collector extends stream_1.Writable {
+    buffers = [];
+    limit = Infinity;
+    bytesBuffered = 0;
+    _write(chunk, encoding, callback) {
+        this.buffers.push(chunk);
+        this.bytesBuffered += chunk.byteLength ?? 0;
+        if (this.bytesBuffered >= this.limit) {
+            const excess = this.bytesBuffered - this.limit;
+            const tailBuffer = this.buffers[this.buffers.length - 1];
+            this.buffers[this.buffers.length - 1] = tailBuffer.subarray(0, tailBuffer.byteLength - excess);
+            this.emit("finish");
+        }
+        callback();
+    }
+}

backend/node_modules/@smithy/util-stream/dist-cjs/index.js

@@ -0,0 +1,86 @@
+'use strict';
+
+var utilBase64 = require('@smithy/util-base64');
+var utilUtf8 = require('@smithy/util-utf8');
+var ChecksumStream = require('./checksum/ChecksumStream');
+var createChecksumStream = require('./checksum/createChecksumStream');
+var createBufferedReadable = require('./createBufferedReadable');
+var getAwsChunkedEncodingStream = require('./getAwsChunkedEncodingStream');
+var headStream = require('./headStream');
+var sdkStreamMixin = require('./sdk-stream-mixin');
+var splitStream = require('./splitStream');
+var streamTypeCheck = require('./stream-type-check');
+
+class Uint8ArrayBlobAdapter extends Uint8Array {
+    static fromString(source, encoding = "utf-8") {
+        if (typeof source === "string") {
+            if (encoding === "base64") {
+                return Uint8ArrayBlobAdapter.mutate(utilBase64.fromBase64(source));
+            }
+            return Uint8ArrayBlobAdapter.mutate(utilUtf8.fromUtf8(source));
+        }
+        throw new Error(`Unsupported conversion from ${typeof source} to Uint8ArrayBlobAdapter.`);
+    }
+    static mutate(source) {
+        Object.setPrototypeOf(source, Uint8ArrayBlobAdapter.prototype);
+        return source;
+    }
+    transformToString(encoding = "utf-8") {
+        if (encoding === "base64") {
+            return utilBase64.toBase64(this);
+        }
+        return utilUtf8.toUtf8(this);
+    }
+}
+
+Object.defineProperty(exports, "isBlob", {
+    enumerable: true,
+    get: function () { return streamTypeCheck.isBlob; }
+});
+Object.defineProperty(exports, "isReadableStream", {
+    enumerable: true,
+    get: function () { return streamTypeCheck.isReadableStream; }
+});
+exports.Uint8ArrayBlobAdapter = Uint8ArrayBlobAdapter;
+Object.keys(ChecksumStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return ChecksumStream[k]; }
+    });
+});
+Object.keys(createChecksumStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return createChecksumStream[k]; }
+    });
+});
+Object.keys(createBufferedReadable).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return createBufferedReadable[k]; }
+    });
+});
+Object.keys(getAwsChunkedEncodingStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return getAwsChunkedEncodingStream[k]; }
+    });
+});
+Object.keys(headStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return headStream[k]; }
+    });
+});
+Object.keys(sdkStreamMixin).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return sdkStreamMixin[k]; }
+    });
+});
+Object.keys(splitStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return splitStream[k]; }
+    });
+});

backend/node_modules/@smithy/util-stream/dist-cjs/sdk-stream-mixin.browser.js

@@ -0,0 +1,68 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.sdkStreamMixin = void 0;
+const fetch_http_handler_1 = require("@smithy/fetch-http-handler");
+const util_base64_1 = require("@smithy/util-base64");
+const util_hex_encoding_1 = require("@smithy/util-hex-encoding");
+const util_utf8_1 = require("@smithy/util-utf8");
+const stream_type_check_1 = require("./stream-type-check");
+const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
+const sdkStreamMixin = (stream) => {
+    if (!isBlobInstance(stream) && !(0, stream_type_check_1.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 (0, fetch_http_handler_1.streamCollector)(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.\n" +
+                "If 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: transformToByteArray,
+        transformToString: async (encoding) => {
+            const buf = await transformToByteArray();
+            if (encoding === "base64") {
+                return (0, util_base64_1.toBase64)(buf);
+            }
+            else if (encoding === "hex") {
+                return (0, util_hex_encoding_1.toHex)(buf);
+            }
+            else if (encoding === undefined || encoding === "utf8" || encoding === "utf-8") {
+                return (0, util_utf8_1.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 ((0, stream_type_check_1.isReadableStream)(stream)) {
+                return stream;
+            }
+            else {
+                throw new Error(`Cannot transform payload to web stream, got ${stream}`);
+            }
+        },
+    });
+};
+exports.sdkStreamMixin = sdkStreamMixin;
+const isBlobInstance = (stream) => typeof Blob === "function" && stream instanceof Blob;

backend/node_modules/@smithy/util-stream/dist-cjs/sdk-stream-mixin.js

@@ -0,0 +1,54 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.sdkStreamMixin = void 0;
+const node_http_handler_1 = require("@smithy/node-http-handler");
+const util_buffer_from_1 = require("@smithy/util-buffer-from");
+const stream_1 = require("stream");
+const sdk_stream_mixin_browser_1 = require("./sdk-stream-mixin.browser");
+const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
+const sdkStreamMixin = (stream) => {
+    if (!(stream instanceof stream_1.Readable)) {
+        try {
+            return (0, sdk_stream_mixin_browser_1.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_TRANSFORMED);
+        }
+        transformed = true;
+        return await (0, node_http_handler_1.streamCollector)(stream);
+    };
+    return Object.assign(stream, {
+        transformToByteArray,
+        transformToString: async (encoding) => {
+            const buf = await transformToByteArray();
+            if (encoding === undefined || Buffer.isEncoding(encoding)) {
+                return (0, util_buffer_from_1.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_TRANSFORMED);
+            }
+            if (stream.readableFlowing !== null) {
+                throw new Error("The stream has been consumed by other callbacks.");
+            }
+            if (typeof stream_1.Readable.toWeb !== "function") {
+                throw new Error("Readable.toWeb() is not supported. Please ensure a polyfill is available.");
+            }
+            transformed = true;
+            return stream_1.Readable.toWeb(stream);
+        },
+    });
+};
+exports.sdkStreamMixin = sdkStreamMixin;

backend/node_modules/@smithy/util-stream/dist-cjs/splitStream.browser.js

@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.splitStream = splitStream;
+async function splitStream(stream) {
+    if (typeof stream.stream === "function") {
+        stream = stream.stream();
+    }
+    const readableStream = stream;
+    return readableStream.tee();
+}

backend/node_modules/@smithy/util-stream/dist-cjs/splitStream.js

@@ -0,0 +1,16 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.splitStream = splitStream;
+const stream_1 = require("stream");
+const splitStream_browser_1 = require("./splitStream.browser");
+const stream_type_check_1 = require("./stream-type-check");
+async function splitStream(stream) {
+    if ((0, stream_type_check_1.isReadableStream)(stream) || (0, stream_type_check_1.isBlob)(stream)) {
+        return (0, splitStream_browser_1.splitStream)(stream);
+    }
+    const stream1 = new stream_1.PassThrough();
+    const stream2 = new stream_1.PassThrough();
+    stream.pipe(stream1);
+    stream.pipe(stream2);
+    return [stream1, stream2];
+}

backend/node_modules/@smithy/util-stream/dist-cjs/stream-type-check.js

@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isBlob = exports.isReadableStream = void 0;
+const isReadableStream = (stream) => typeof ReadableStream === "function" &&
+    (stream?.constructor?.name === ReadableStream.name || stream instanceof ReadableStream);
+exports.isReadableStream = isReadableStream;
+const isBlob = (blob) => {
+    return typeof Blob === "function" && (blob?.constructor?.name === Blob.name || blob instanceof Blob);
+};
+exports.isBlob = isBlob;