Files
proxypin/lib/utils/har.dart
wanghongenpin 8106afd300 v1.1.8-pre
2025-04-14 06:13:54 +08:00

215 lines
7.9 KiB
Dart

/*
* Copyright 2023 Hongen Wang
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import 'dart:convert';
import 'dart:io';
import 'package:proxypin/network/channel/host_port.dart';
import 'package:proxypin/network/http/content_type.dart';
import 'package:proxypin/network/http/http.dart';
import 'package:proxypin/network/http/http_headers.dart';
import 'package:proxypin/network/util/process_info.dart';
import 'package:proxypin/ui/configuration.dart';
class Har {
static int maxBodyLength = 1024 * 1024 * 4;
static List<Map> _entries(List<HttpRequest> list) {
return list.map((e) => toHar(e)).toList();
}
static Map toHar(HttpRequest request) {
bool isImage = request.response?.contentType == ContentType.image;
Map har = {
"startedDateTime": request.requestTime.toUtc().toIso8601String(), // 请求发出的时间(ISO 8601)
"time": request.response?.responseTime.difference(request.requestTime).inMilliseconds,
"pageref": "ProxyPin", // 页面标识
"_id": request.requestId, // 页面标识
'_app': request.processInfo?.toJson(),
"request": {
"method": request.method.name, // 请求方法
"url": request.requestUrl, // 请求地址
"httpVersion": request.protocolVersion, // HTTP协议版本
"cookies": [], // 请求携带的cookie
"headers": _headers(request), // 请求头
"queryString": _getQueryString(request), // 请求参数
"postData": _getPostData(request), // 请求体
"headersSize": -1, // 请求头大小
"bodySize": request.body?.length ?? -1, // 请求体大小
},
"cache": {},
'timings': {
'send': 0,
'wait': request.response?.responseTime.difference(request.requestTime).inMilliseconds,
'receive': 0,
},
'serverIPAddress': request.response?.remoteHost ?? '', // 服务器IP地址
};
har['response'] = {
"status": request.response?.status.code ?? 0, // 响应状态码
"statusText": request.response?.status.reasonPhrase ?? '', // 响应状态码描述
"httpVersion": request.response?.protocolVersion ?? 'HTTP/1.1', // HTTP协议版本
"cookies": [], // 响应携带的cookie
"headers": _headers(request.response), // 响应头
"content": {
"size": isImage ? 0 : request.response?.body?.length ?? -1, // 响应体大小
"mimeType": _getContentType(request.response?.headers.contentType), // 响应体类型
"text": isImage ? '' : request.response?.bodyAsString, // 响应体内容
},
"redirectURL": '', // 重定向地址
"headersSize": -1, // 响应头大小
"bodySize": isImage ? -1 : request.response?.body?.length ?? -1, // 响应体大小
};
return har;
}
static Future<String> writeJson(List<HttpRequest> list, {String title = ''}) async {
var entries = _entries(list);
Map har = {};
title = title.contains("ProxyPin") ? title : "[ProxyPin]$title";
har["log"] = {
"version": "1.2",
"creator": {"name": "ProxyPin", "version": AppConfiguration.version},
"pages": [
{
"title": title,
"id": "ProxyPin",
"startedDateTime": list.firstOrNull?.requestTime.toUtc().toIso8601String(),
"pageTimings": {"onContentLoad": -1, "onLoad": -1}
}
],
"entries": entries,
};
return jsonEncode(har);
}
static Future<File> writeFile(List<HttpRequest> list, File file, {String title = ''}) async {
var json = await writeJson(list, title: title);
return file.writeAsString(json);
}
//读取文件
static Future<List<HttpRequest>> readFile(File file) async {
var lines = await file.readAsLines();
List<HttpRequest> list = [];
for (var value in lines) {
var har = jsonDecode(value.substring(0, value.length - 1));
var request = toRequest(har);
list.add(request);
}
return list;
}
static List<Map> _headers(HttpMessage? message) {
var headers = <Map<String, String>>[];
var contentEncodingName = message?.headers.getOriginalName(HttpHeaders.CONTENT_ENCODING);
message?.headers.forEach((name, values) {
for (var element in values) {
//body已经解码 删除编码
if (name == contentEncodingName && element == 'br') {
continue;
}
headers.add({'name': name, 'value': element});
}
});
return headers;
}
/// har to request
static HttpRequest toRequest(Map har) {
var request = har['request'];
var method = request['method'];
List headers = request['headers'];
var httpRequest = HttpRequest(HttpMethod.valueOf(method), request['url'], protocolVersion: request['httpVersion']);
if (har.containsKey("_id")) httpRequest.requestId = har['_id'].toString(); // 页面标识
httpRequest.processInfo = har['_app'] == null ? null : ProcessInfo.fromJson(har['_app']);
httpRequest.body = request['postData']?['text']?.toString().codeUnits;
for (var element in headers) {
httpRequest.headers.add(element['name'], element['value']);
}
var response = har['response'];
HttpResponse? httpResponse;
if (response != null && response['status'] != null) {
httpResponse = HttpResponse(HttpStatus.newStatus(response['status'], response['statusText']),
protocolVersion: response['httpVersion']);
httpResponse.body = response['content']['text']?.toString().codeUnits;
List responseHeaders = response['headers'];
for (var element in responseHeaders) {
httpResponse.headers.add(element['name'], element['value']);
}
}
httpRequest.response = httpResponse;
httpResponse?.request = httpRequest;
httpRequest.hostAndPort = HostAndPort.of(httpRequest.requestUrl);
httpResponse?.remoteHost = har['serverIPAddress']; // 服务器IP地址
//请求时间
if (har['startedDateTime'] != null) {
httpRequest.requestTime = DateTime.parse(har['startedDateTime']).toLocal();
}
if (har['time'] != null) {
httpRequest.response?.responseTime =
httpRequest.requestTime.add(Duration(milliseconds: double.parse(har['time'].toString()).toInt()));
}
return httpRequest;
}
static List<Map<String, String>> _getQueryString(HttpRequest request) {
final queryStringList = <Map<String, String>>[];
final queries = request.requestUri?.queryParametersAll;
queries?.forEach((key, valueList) {
for (var value in valueList) {
queryStringList.add({"name": key, "value": value});
}
});
return queryStringList;
}
static Map<String, dynamic> _getPostData(HttpRequest request) {
if (request.contentType == ContentType.formData || request.contentType == ContentType.formUrl) {
return {
"mimeType": request.headers.contentType, // 请求体类型
"text": request.bodyAsString, // 请求体内容
"params": [], // 请求体内容
};
}
return {
"mimeType": request.headers.contentType, // 请求体类型
"text": request.bodyAsString, // 请求体内容
};
}
//获取contentType
static String? _getContentType(String? type) {
if (type == null) {
return '';
}
var indexOf = type.indexOf("charset=");
if (indexOf == -1) {
return type;
}
var contentType = type.substring(0, indexOf).trimRight();
if (contentType.endsWith(";")) {
return contentType.substring(0, contentType.length - 1);
}
return contentType;
}
}