NativeScript/packages/core/debugger/index.ts

export namespace domains {
	export namespace network {
		export interface NetworkDomainDebugger {
			create(): domains.network.NetworkRequest;
		}

		export interface Headers {}

		export interface Request {
			url: string;
			method: string;
			headers: domains.network.Headers;
			postData?: string;
		}

		export interface Response {
			url: string;
			status: number;
			statusText: string;
			headers: Headers;
			headersText?: string;
			mimeType: string;
			requestHeaders?: domains.network.Headers;
			requestHeadersText?: string;
			fromDiskCache?: boolean;
		}

		export interface NetworkRequest {
			mimeType: string;
			data: any;
			responseReceived(response: domains.network.Response);
			loadingFinished();
			requestWillBeSent(request: domains.network.Request);
		}
	}
}

let network;

export function getNetwork(): domains.network.NetworkDomainDebugger {
	return network;
}
export function setNetwork(newNetwork: domains.network.NetworkDomainDebugger) {
	network = newNetwork;
}

let dom;

export function getDOM(): any {
	return dom;
}

export function setDOM(newDOM) {
	dom = newDOM;
}

let css;

export function getCSS(): any {
	return css;
}

export function setCSS(newCSS) {
	css = newCSS;
}

export namespace NetworkAgent {
	export interface Request {
		url: string;
		method: string;
		headers: any;
		initialPriority: string;
		referrerPolicy: string;
		postData?: string;
	}

	export interface RequestData {
		requestId: string;
		url: string;
		request: Request;
		timestamp: number;
		type: string;
		wallTime: number;
	}

	export interface Response {
		url: string;
		status: number;
		statusText: string;
		headers: any;
		headersText?: string;
		mimeType: string;
		connectionReused: boolean;
		connectionId: number;
		encodedDataLength: number;
		securityState: string;
		fromDiskCache?: boolean;
	}

	export interface ResponseData {
		requestId: string;
		type: string;
		response: Response;
		timestamp: number;
	}

	export interface SuccessfulRequestData {
		requestId: string;
		data: string;
		hasTextContent: boolean;
	}

	export interface LoadingFinishedData {
		requestId: string;
		timestamp: number;
	}

	export function responseReceived(requestId: number, result: org.nativescript.widgets.Async.Http.RequestResult, headers: any) {
		const requestIdStr = requestId.toString();
		// Content-Type and content-type are both common in headers spelling
		const mimeType: string = <string>headers['Content-Type'] || <string>headers['content-type'] || 'application/octet-stream';
		const contentLengthHeader: string = <string>headers['Content-Length'] || <string>headers['content-length'];
		let contentLength = parseInt(contentLengthHeader, 10);
		if (isNaN(contentLength)) {
			contentLength = 0;
		}

		const response: NetworkAgent.Response = {
			url: result.url || '',
			status: result.statusCode,
			statusText: result.statusText || '',
			headers: headers,
			mimeType: mimeType,
			fromDiskCache: false,
			connectionReused: true,
			connectionId: 0,
			encodedDataLength: contentLength,
			securityState: 'info',
		};

		const responseData: NetworkAgent.ResponseData = {
			requestId: requestIdStr,
			type: mimeTypeToType(response.mimeType),
			response: response,
			timestamp: getTimeStamp(),
		};

		global.__inspector.responseReceived(responseData);
		global.__inspector.loadingFinished({
			requestId: requestIdStr,
			timestamp: getTimeStamp(),
			encodedDataLength: contentLength,
		});

		const hasTextContent = responseData.type === 'Document' || responseData.type === 'Script';
		let data;

		if (!hasTextContent) {
			if (responseData.type === 'Image') {
				const bitmap = result.responseAsImage;
				if (bitmap) {
					const outputStream = new java.io.ByteArrayOutputStream();
					bitmap.compress(android.graphics.Bitmap.CompressFormat.PNG, 100, outputStream);

					const base64Image = android.util.Base64.encodeToString(outputStream.toByteArray(), android.util.Base64.DEFAULT);
					data = base64Image;
				}
			}
		} else {
			data = result.responseAsString;
		}

		const successfulRequestData: NetworkAgent.SuccessfulRequestData = {
			requestId: requestIdStr,
			data: data,
			hasTextContent: hasTextContent,
		};

		global.__inspector.dataForRequestId(successfulRequestData);
	}

	export function requestWillBeSent(requestId: number, options: any) {
		const request: NetworkAgent.Request = {
			url: options.url,
			method: options.method,
			headers: options.headers || {},
			postData: options.content ? options.content.toString() : '',
			initialPriority: 'Medium',
			referrerPolicy: 'no-referrer-when-downgrade',
		};

		const requestData: NetworkAgent.RequestData = {
			requestId: requestId.toString(),
			url: request.url,
			request: request,
			timestamp: getTimeStamp(),
			type: 'Document',
			wallTime: 0,
		};

		global.__inspector.requestWillBeSent(requestData);
	}

	function getTimeStamp(): number {
		const d = new Date();

		return Math.round(d.getTime() / 1000);
	}

	function mimeTypeToType(mimeType: string): string {
		let type = 'Document';

		if (mimeType) {
			if (mimeType.indexOf('image') === 0) {
				type = 'Image';
			} else if (mimeType.indexOf('javascript') !== -1 || mimeType.indexOf('json') !== -1) {
				type = 'Script';
			}
		}

		return type;
	}
}