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Copyright (c) Microsoft Corporation.\n// Licensed under the MIT License.\n\nimport type { HttpMethods, ProxySettings } from \"@azure/core-rest-pipeline\";\nimport { createHttpHeaders, createPipelineRequest } from \"@azure/core-rest-pipeline\";\nimport type { AbortSignalLike } from \"@azure/abort-controller\";\nimport type { HttpHeaders as HttpHeadersV2, PipelineRequest } from \"@azure/core-rest-pipeline\";\n\n// We use a custom symbol to cache a reference to the original request without\n// exposing it on the public interface.\nconst originalRequestSymbol = Symbol(\"Original PipelineRequest\");\ntype CompatWebResourceLike = WebResourceLike & { [originalRequestSymbol]?: PipelineRequest };\n// Symbol.for() will return the same symbol if it's already been created\n// This particular one is used in core-client to handle the case of when a request is\n// cloned but we need to retrieve the OperationSpec and OperationArguments from the\n// original request.\nconst originalClientRequestSymbol = Symbol.for(\"@azure/core-client original request\");\ntype PipelineRequestWithOriginal = PipelineRequest & {\n [originalClientRequestSymbol]?: PipelineRequest;\n};\n\nexport function toPipelineRequest(\n webResource: WebResourceLike,\n options: {\n originalRequest?: PipelineRequest;\n } = {},\n): PipelineRequest {\n const compatWebResource = webResource as CompatWebResourceLike;\n const request = compatWebResource[originalRequestSymbol];\n const headers = createHttpHeaders(webResource.headers.toJson({ preserveCase: true }));\n if (request) {\n request.headers = headers;\n return request;\n } else {\n const newRequest = createPipelineRequest({\n url: webResource.url,\n method: webResource.method,\n headers,\n withCredentials: webResource.withCredentials,\n timeout: webResource.timeout,\n requestId: webResource.requestId,\n abortSignal: webResource.abortSignal,\n body: webResource.body,\n formData: webResource.formData,\n disableKeepAlive: !!webResource.keepAlive,\n onDownloadProgress: webResource.onDownloadProgress,\n onUploadProgress: webResource.onUploadProgress,\n proxySettings: webResource.proxySettings,\n streamResponseStatusCodes: webResource.streamResponseStatusCodes,\n agent: webResource.agent,\n requestOverrides: webResource.requestOverrides,\n });\n if (options.originalRequest) {\n (newRequest as PipelineRequestWithOriginal)[originalClientRequestSymbol] =\n options.originalRequest;\n }\n return newRequest;\n }\n}\n\nexport function toWebResourceLike(\n request: PipelineRequest,\n options?: { createProxy?: boolean; originalRequest?: PipelineRequest },\n): WebResourceLike {\n const originalRequest = options?.originalRequest ?? request;\n const webResource: WebResourceLike = {\n url: request.url,\n method: request.method,\n headers: toHttpHeadersLike(request.headers),\n withCredentials: request.withCredentials,\n timeout: request.timeout,\n requestId: request.headers.get(\"x-ms-client-request-id\") || request.requestId,\n abortSignal: request.abortSignal,\n body: request.body,\n formData: request.formData,\n keepAlive: !!request.disableKeepAlive,\n onDownloadProgress: request.onDownloadProgress,\n onUploadProgress: request.onUploadProgress,\n proxySettings: request.proxySettings,\n streamResponseStatusCodes: request.streamResponseStatusCodes,\n agent: request.agent,\n requestOverrides: request.requestOverrides,\n clone(): WebResourceLike {\n throw new Error(\"Cannot clone a non-proxied WebResourceLike\");\n },\n prepare(): WebResourceLike {\n throw new Error(\"WebResourceLike.prepare() is not supported by @azure/core-http-compat\");\n },\n validateRequestProperties(): void {\n /** do nothing */\n },\n };\n\n if (options?.createProxy) {\n return new Proxy(webResource, {\n get(target, prop, receiver) {\n if (prop === originalRequestSymbol) {\n return request;\n } else if (prop === \"clone\") {\n return () => {\n return toWebResourceLike(toPipelineRequest(webResource, { originalRequest }), {\n createProxy: true,\n originalRequest,\n });\n };\n }\n return Reflect.get(target, prop, receiver);\n },\n set(target: any, prop, value, receiver) {\n if (prop === \"keepAlive\") {\n request.disableKeepAlive = !value;\n }\n const passThroughProps = [\n \"url\",\n \"method\",\n \"withCredentials\",\n \"timeout\",\n \"requestId\",\n \"abortSignal\",\n \"body\",\n \"formData\",\n \"onDownloadProgress\",\n \"onUploadProgress\",\n \"proxySettings\",\n \"streamResponseStatusCodes\",\n \"agent\",\n \"requestOverrides\",\n ];\n\n if (typeof prop === \"string\" && passThroughProps.includes(prop)) {\n (request as any)[prop] = value;\n }\n\n return Reflect.set(target, prop, value, receiver);\n },\n });\n } else {\n return webResource;\n }\n}\n\n/**\n * Converts HttpHeaders from core-rest-pipeline to look like\n * HttpHeaders from core-http.\n * @param headers - HttpHeaders from core-rest-pipeline\n * @returns HttpHeaders as they looked in core-http\n */\nexport function toHttpHeadersLike(headers: HttpHeadersV2): HttpHeadersLike {\n return new HttpHeaders(headers.toJSON({ preserveCase: true }));\n}\n\n/**\n * A collection of HttpHeaders that can be sent with a HTTP request.\n */\nfunction getHeaderKey(headerName: string): string {\n return headerName.toLowerCase();\n}\n\n/**\n * An individual header within a HttpHeaders collection.\n */\nexport interface HttpHeader {\n /**\n * The name of the header.\n */\n name: string;\n\n /**\n * The value of the header.\n */\n value: string;\n}\n\n/**\n * A HttpHeaders collection represented as a simple JSON object.\n */\nexport type RawHttpHeaders = { [headerName: string]: string };\n\n/**\n * A collection of HTTP header key/value pairs.\n */\nexport interface HttpHeadersLike {\n /**\n * Set a header in this collection with the provided name and value. The name is\n * case-insensitive.\n * @param headerName - The name of the header to set. This value is case-insensitive.\n * @param headerValue - The value of the header to set.\n */\n set(headerName: string, headerValue: string | number): void;\n /**\n * Get the header value for the provided header name, or undefined if no header exists in this\n * collection with the provided name.\n * @param headerName - The name of the header.\n */\n get(headerName: string): string | undefined;\n /**\n * Get whether or not this header collection contains a header entry for the provided header name.\n */\n contains(headerName: string): boolean;\n /**\n * Remove the header with the provided headerName. Return whether or not the header existed and\n * was removed.\n * @param headerName - The name of the header to remove.\n */\n remove(headerName: string): boolean;\n /**\n * Get the headers that are contained this collection as an object.\n */\n rawHeaders(): RawHttpHeaders;\n /**\n * Get the headers that are contained in this collection as an array.\n */\n headersArray(): HttpHeader[];\n /**\n * Get the header names that are contained in this collection.\n */\n headerNames(): string[];\n /**\n * Get the header values that are contained in this collection.\n */\n headerValues(): string[];\n /**\n * Create a deep clone/copy of this HttpHeaders collection.\n */\n clone(): HttpHeadersLike;\n /**\n * Get the JSON object representation of this HTTP header collection.\n * The result is the same as `rawHeaders()`.\n */\n toJson(options?: { preserveCase?: boolean }): RawHttpHeaders;\n}\n\n/**\n * A collection of HTTP header key/value pairs.\n */\nexport class HttpHeaders implements HttpHeadersLike {\n private readonly _headersMap: { [headerKey: string]: HttpHeader };\n\n constructor(rawHeaders?: RawHttpHeaders) {\n this._headersMap = {};\n if (rawHeaders) {\n for (const headerName in rawHeaders) {\n this.set(headerName, rawHeaders[headerName]);\n }\n }\n }\n\n /**\n * Set a header in this collection with the provided name and value. The name is\n * case-insensitive.\n * @param headerName - The name of the header to set. This value is case-insensitive.\n * @param headerValue - The value of the header to set.\n */\n public set(headerName: string, headerValue: string | number): void {\n this._headersMap[getHeaderKey(headerName)] = {\n name: headerName,\n value: headerValue.toString(),\n };\n }\n\n /**\n * Get the header value for the provided header name, or undefined if no header exists in this\n * collection with the provided name.\n * @param headerName - The name of the header.\n */\n public get(headerName: string): string | undefined {\n const header: HttpHeader = this._headersMap[getHeaderKey(headerName)];\n return !header ? undefined : header.value;\n }\n\n /**\n * Get whether or not this header collection contains a header entry for the provided header name.\n */\n public contains(headerName: string): boolean {\n return !!this._headersMap[getHeaderKey(headerName)];\n }\n\n /**\n * Remove the header with the provided headerName. Return whether or not the header existed and\n * was removed.\n * @param headerName - The name of the header to remove.\n */\n public remove(headerName: string): boolean {\n const result: boolean = this.contains(headerName);\n delete this._headersMap[getHeaderKey(headerName)];\n return result;\n }\n\n /**\n * Get the headers that are contained this collection as an object.\n */\n public rawHeaders(): RawHttpHeaders {\n return this.toJson({ preserveCase: true });\n }\n\n /**\n * Get the headers that are contained in this collection as an array.\n */\n public headersArray(): HttpHeader[] {\n const headers: HttpHeader[] = [];\n for (const headerKey in this._headersMap) {\n headers.push(this._headersMap[headerKey]);\n }\n return headers;\n }\n\n /**\n * Get the header names that are contained in this collection.\n */\n public headerNames(): string[] {\n const headerNames: string[] = [];\n const headers: HttpHeader[] = this.headersArray();\n for (let i = 0; i < headers.length; ++i) {\n headerNames.push(headers[i].name);\n }\n return headerNames;\n }\n\n /**\n * Get the header values that are contained in this collection.\n */\n public headerValues(): string[] {\n const headerValues: string[] = [];\n const headers: HttpHeader[] = this.headersArray();\n for (let i = 0; i < headers.length; ++i) {\n headerValues.push(headers[i].value);\n }\n return headerValues;\n }\n\n /**\n * Get the JSON object representation of this HTTP header collection.\n */\n public toJson(options: { preserveCase?: boolean } = {}): RawHttpHeaders {\n const result: RawHttpHeaders = {};\n if (options.preserveCase) {\n for (const headerKey in this._headersMap) {\n const header: HttpHeader = this._headersMap[headerKey];\n result[header.name] = header.value;\n }\n } else {\n for (const headerKey in this._headersMap) {\n const header: HttpHeader = this._headersMap[headerKey];\n result[getHeaderKey(header.name)] = header.value;\n }\n }\n return result;\n }\n\n /**\n * Get the string representation of this HTTP header collection.\n */\n public toString(): string {\n return JSON.stringify(this.toJson({ preserveCase: true }));\n }\n\n /**\n * Create a deep clone/copy of this HttpHeaders collection.\n */\n public clone(): HttpHeaders {\n const resultPreservingCasing: RawHttpHeaders = {};\n for (const headerKey in this._headersMap) {\n const header: HttpHeader = this._headersMap[headerKey];\n resultPreservingCasing[header.name] = header.value;\n }\n return new HttpHeaders(resultPreservingCasing);\n }\n}\n\n/**\n * An interface compatible with NodeJS's `http.Agent`.\n * We want to avoid publicly re-exporting the actual interface,\n * since it might vary across runtime versions.\n */\nexport interface Agent {\n /**\n * Destroy any sockets that are currently in use by the agent.\n */\n destroy(): void;\n /**\n * For agents with keepAlive enabled, this sets the maximum number of sockets that will be left open in the free state.\n */\n maxFreeSockets: number;\n /**\n * Determines how many concurrent sockets the agent can have open per origin.\n */\n maxSockets: number;\n /**\n * An object which contains queues of requests that have not yet been assigned to sockets.\n */\n requests: unknown;\n /**\n * An object which contains arrays of sockets currently in use by the agent.\n */\n sockets: unknown;\n}\n\n/**\n * A description of a HTTP request to be made to a remote server.\n */\nexport interface WebResourceLike {\n /**\n * The URL being accessed by the request.\n */\n url: string;\n /**\n * The HTTP method to use when making the request.\n */\n method: HttpMethods;\n /**\n * The HTTP body contents of the request.\n */\n body?: any;\n /**\n * The HTTP headers to use when making the request.\n */\n headers: HttpHeadersLike;\n /**\n * Whether or not the body of the HttpOperationResponse should be treated as a stream.\n * @deprecated Use streamResponseStatusCodes property instead.\n */\n streamResponseBody?: boolean;\n /**\n * A list of response status codes whose corresponding HttpOperationResponse body should be treated as a stream.\n */\n streamResponseStatusCodes?: Set<number>;\n /**\n * Form data, used to build the request body.\n */\n formData?: any;\n /**\n * A query string represented as an object.\n */\n query?: { [key: string]: any };\n /**\n * If credentials (cookies) should be sent along during an XHR.\n */\n withCredentials: boolean;\n /**\n * The number of milliseconds a request can take before automatically being terminated.\n * If the request is terminated, an `AbortError` is thrown.\n */\n timeout: number;\n /**\n * Proxy configuration.\n */\n proxySettings?: ProxySettings;\n /**\n * If the connection should be reused.\n */\n keepAlive?: boolean;\n /**\n * Whether or not to decompress response according to Accept-Encoding header (node-fetch only)\n */\n decompressResponse?: boolean;\n /**\n * A unique identifier for the request. Used for logging and tracing.\n */\n requestId: string;\n\n /**\n * Signal of an abort controller. Can be used to abort both sending a network request and waiting for a response.\n */\n abortSignal?: AbortSignalLike;\n\n /**\n * Callback which fires upon upload progress.\n */\n onUploadProgress?: (progress: TransferProgressEvent) => void;\n\n /** Callback which fires upon download progress. */\n onDownloadProgress?: (progress: TransferProgressEvent) => void;\n\n /**\n * NODEJS ONLY\n *\n * A Node-only option to provide a custom `http.Agent`/`https.Agent`.\n * NOTE: usually this should be one instance shared by multiple requests so that the underlying\n * connection to the service can be reused.\n * Does nothing when running in the browser.\n */\n agent?: Agent;\n\n /**\n * Additional options to set on the request. This provides a way to override\n * existing ones or provide request properties that are not declared.\n *\n * For possible valid properties, see\n * - NodeJS https.request options: https://nodejs.org/api/http.html#httprequestoptions-callback\n * - Browser RequestInit: https://developer.mozilla.org/en-US/docs/Web/API/RequestInit\n *\n * WARNING: Options specified here will override any properties of same names when request is sent by {@link HttpClient}.\n */\n requestOverrides?: Record<string, unknown>;\n\n /**\n * Clone this request object.\n */\n clone(): WebResourceLike;\n\n /**\n * Validates that the required properties such as method, url, headers[\"Content-Type\"],\n * headers[\"accept-language\"] are defined. It will throw an error if one of the above\n * mentioned properties are not defined.\n * Note: this a no-op for compat purposes.\n */\n validateRequestProperties(): void;\n\n /**\n * This is a no-op for compat purposes and will throw if called.\n */\n prepare(options: unknown): WebResourceLike;\n}\n\n/**\n * Fired in response to upload or download progress.\n */\nexport type TransferProgressEvent = {\n /**\n * The number of bytes loaded so far.\n */\n loadedBytes: number;\n};\n"]}
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