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/*
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* Copyright (c) 2025 SimcuTeam. All rights reserved.
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* 移植自 C# 项目 SimApi(E:\simcu\simapi-net),遵循 MIT 许可证。
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*/
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package simapi.helpers
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import std.collection.*
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import std.io.*
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import stdx.net.tls.*
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import stdx.net.tls.common.*
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import soulsoft_net_http.{HttpClient, HttpRequestMessage, JsonContent}
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import soulsoft_net_http.{HttpMethod as NetHttpMethod}
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import soulsoft_serialization.*
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import simapi.communications.*
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import simapi.configurations.*
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import simapi.exceptions.*
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/**
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* HTTP 客户端:用于调用其他带签名/AES 的 SimApi 服务。
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* 对齐 C# 的 SimApi.Helpers.SimApiHttpClient:
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* - 内部使用 soulsoft_net_http 的 HttpClient(等价 .NET 的 System.Net.Http.HttpClient)
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* - 返回泛型 T(反序列化响应 body 的 data 字段),不再返回 String
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* @param T 响应 data 的数据类型(需实现 ISerialization<T>,如 SimApiLoginItem、String、Int64 等)。
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*/
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public class SimApiHttpClient {
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public var server: String
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public var appId: String
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public var appKey: String
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public var signName: String = "sign"
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public var timestampName: String = "timestamp"
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public var nonceName: String = "nonce"
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public var appIdName: ?String = Some("appId")
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public var signFields: Array<String> = []
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public init(options!: SimApiOptions = SimApiOptions()) {
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let httpOptions = options.simApiHttpClientOptions
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server = httpOptions.server
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appId = httpOptions.appId
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appKey = httpOptions.appKey
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signName = httpOptions.signName
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timestampName = httpOptions.timestampName
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nonceName = httpOptions.nonceName
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appIdName = httpOptions.appIdName
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signFields = httpOptions.signFields
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}
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/**
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* 发起签名请求(GET query 签名 + POST body)。
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* 对齐 C# SignQuery<T>:query 串 = SignFields + AppId + timestamp + nonce,整体拼 AppKey 取 MD5 作为 sign。
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* @param url 请求路径(相对路径,自动拼接 server)。
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* @param body 请求体 JSON 字符串(可选)。
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* @param queries 额外查询参数(可选)。
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* @return 响应 data 字段反序列化后的 T。
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*/
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public func signQuery<T>(url: String, body!: String = "", queries!: HashMap<String, String> = HashMap<String, String>()): T where T <: ISerialization<T> {
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var queryUrl = StringBuilder()
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for (field in signFields) {
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queryUrl.append("${field}=")
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if (let Some(v) <- queries.get(field)) {
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queryUrl.append(v)
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}
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queryUrl.append("&")
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}
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if (let Some(name) <- appIdName) {
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queryUrl.append("${name}=${appId}&")
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}
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let timestamp = Int64(SimApiUtil.timestampNow)
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let nonce = generateNonce()
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queryUrl.append("${timestampName}=${timestamp}&${nonceName}=${nonce}")
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let signStr = "${queryUrl.toString()}&${appKey}"
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var path = "${server}${url}?${queryUrl.toString()}&${signName}=${SimApiUtil.md5(signStr)}"
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for ((k, v) in queries) {
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if (!signFields.contains(k)) {
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path = "${path}&${k}=${v}"
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}
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}
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return query<T>(path, body)
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}
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/**
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* 发起 AES 加密请求:body 加密后放入 {"data": "..."} 提交。
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* 对齐 C# AesQuery<T>(SimApiOneFieldRequest<string> { Data = Encrypt(body, AppKey) })。
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* @param url 请求路径(相对路径,自动拼接 server)。
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* @param body 请求体 JSON 字符串。
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* @return 响应 data 字段反序列化后的 T。
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*/
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public func aesQuery<T>(url: String, body: String): T where T <: ISerialization<T> {
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var target = "${server}${url}"
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if (let Some(name) <- appIdName) {
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target = "${target}?${name}=${appId}"
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}
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let encrypted = aesEncrypt(body)
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let req = "{\"data\":\"${encrypted}\"}"
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return query<T>(target, req)
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}
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/**
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* 发起 AES 加密 + 签名请求。
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* 对齐 C# AesSignQuery<T>。
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* @param url 请求路径(相对路径,自动拼接 server)。
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* @param body 请求体 JSON 字符串。
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* @param queries 额外查询参数(可选)。
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* @return 响应 data 字段反序列化后的 T。
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*/
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public func aesSignQuery<T>(url: String, body: String, queries!: HashMap<String, String> = HashMap<String, String>()): T where T <: ISerialization<T> {
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let encrypted = aesEncrypt(body)
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let req = "{\"data\":\"${encrypted}\"}"
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return signQuery<T>(url, body: req, queries: queries)
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}
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/**
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* 发起 POST 请求并反序列化 SimApiBaseResponse<T>,返回 data 字段。
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* 对齐 C# Query<T>:
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* ErrorWhenFalse(IsSuccessStatusCode) → ReadFromJsonAsync<SimApiBaseResponse<T>> → ErrorWhen(Code != 200) → return Data。
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* 注意:必须 noProxy(),否则会走系统代理(192.168.0.250:8118)导致连接被拒。
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*/
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private func query<T>(url: String, body: String): T where T <: ISerialization<T> {
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let client = HttpClient.create { builder =>
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builder.noProxy()
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// 支持 https:配置 TLS(信任所有证书 + SNI 域名)
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var tls = TlsClientConfig()
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tls.verifyMode = CertificateVerifyMode.TrustAll
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let host = extractHost(url)
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if (!host.isEmpty()) {
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tls.serverName = Some(host)
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}
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builder.tlsConfig(tls)
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}
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try {
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let request = HttpRequestMessage(NetHttpMethod.Post, url)
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request.content = JsonContent.create(body)
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let response = client.send(request)
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try {
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SimApiError.errorWhenFalse(response.isSuccessStatusCode, code: response.statusCode, message: "HTTP ERROR: ${response.statusCode}")
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let result = response.content.readFromJson<SimApiResponse<T>>()
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SimApiError.errorWhen(result._code != 200, code: result._code, message: result._message)
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return result._data.getOrThrow()
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} finally {
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response.close()
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}
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} finally {
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client.close()
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}
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}
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private func aesEncrypt(plain: String): String {
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// 对齐 C#:SimApiAesUtil.Encrypt(plain, AppKey)(AES-256-CBC + PKCS7,Base64(IV + 密文))
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SimApiAesUtil.encrypt(plain, appKey)
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}
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private static func generateNonce(): String {
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// 对齐 C#:nonce 直接用 Guid.NewGuid()
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SimApiUtil.newGuid()
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}
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/// 从完整 URL 提取 host(https://host[:port]/path → host)。
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private static func extractHost(fullUrl: String): String {
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match (fullUrl.indexOf("://")) {
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case Some(i) =>
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let rest = fullUrl[i + 3..]
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let slash = rest.indexOf("/") ?? rest.size
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let q = rest.indexOf("?") ?? rest.size
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let end = if (slash < q) { slash } else { q }
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return rest[0..end]
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case None => return ""
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}
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}
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}
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