dotnet/molilian.core/Plus/Alimama/parse_endpoint/tool_links.cs

using dodohold.core;
using System.Diagnostics;
using System.Text.Json;


namespace molilian.core
{
    public partial class AlimamaPlus
    {
        public async Task<TkDataDTO> endpoint_tool_links(string content, TkDataDTO result, CancellationToken cancellationToken = default)
        {
            string t = $"{DateTime.Now.Convert2UnixTimestamp(true)}";

            Random random = new();
            double randomNumber = random.NextDouble();
            string randomString = randomNumber.ToString()[2..];

            string cna = _cookies.GetContentPart("cna=", ";");
            string firstFiveCharacters = cna[..Math.Min(5, cna.Length)];

            var variableMap = new
            {
                url = content,
                union_lens = $"b_pvid:a219t._portal_v2_home_plus_index_htm_{t}_{randomString}_{firstFiveCharacters}_mmWuH",
                lensScene = "PUB",
                spmB = "_portal_v2_tool_links_page_home_index_htm"
            }.Convert2Json(true).UrlEncode();

            variableMap = variableMap.Replace(" ", "%20");
            _floorId = "61446";
            string url = "https://pub.alimama.com/openapi/param2/1/gateway.unionpub/xt.entry.json?" +
                $"t={t}&_tb_token_={_tb_token}&floorId={_floorId}&refpid={_refpid}&variableMap={variableMap}";


            Stopwatch stopwatch = Stopwatch.StartNew();
            stopwatch.Start();
            var client = new WebClientUtility().SetContentType("application/json;charset=utf-8")
                        .AddHeaders("X-Requested-With", "XMLHttpRequest")
                        .AddHeaders("Cookie", _cookies);
            client.Proxy = _proxy;
#if DEBUG
            client.Proxy = null;
#endif
            if (!string.IsNullOrEmpty(_user_agent)) client.UserAgent = _user_agent;
            client.Timeout = GetRequestTimeout2(result.elapsedTime2);
            //var response = client.Request(url);

#if DEBUG
            var response = await client.RequestAsync(url, "GET");
#else
            var response = await client.RequestAsync(url, "GET", cancellationToken);
#endif

            stopwatch.Stop();
            result.elapsedTime3 = (int)stopwatch.ElapsedMilliseconds;



            var body = string.Empty;
            try
            {
                if (!response.Successed)
                {
                    result.channel = TkChannelEnum.tb;
                    result.link_type = LinkTypeEnum.unknown;
                    result.success = false;
                    result.message = "fail";

                    if (response.ResponseException != null)
                    {
                        _ = new LoggerLibrary("api_error", "fail")
                            .Info(response.ResponseException.Message, response.ResponseException.StackTrace)
                            .SaveAsync();
                        throw response.ResponseException;
                    }

                    return result;
                }
                if (response.ResponseMessage.StatusCode == System.Net.HttpStatusCode.Found)
                {
                    _ = new LoggerLibrary("api_error", "fail")
                        .Info($"302:{response.ResponseMessage.Headers.Location}")
                        .SaveAsync();
                    throw new Exception("302 Found, was canceled");
                }
                JsonElement root;
                try
                {
                    body = response.Body();
                    root = body.Convert2JsonElement();
                }
                catch (Exception ex)
                {
                    _ = new LoggerLibrary("api_error", "fail")
                        .Info(ex.Message, ex.StackTrace)
                        .SaveAsync();

                    if (body.Contains("https://g.alicdn.com/sd/punish/waf_block.html"))
                    {
                        await TkEndpointManager.SuspendAsync(_accountId, "tool_links", TkEndpointManager.SuspendReason.Passive);
                        result.channel = TkChannelEnum.tb;
                        result.link_type = LinkTypeEnum.unknown;
                        result.success = false;
                        result.message = "waf_block";
                        return result;
                    }

                    if (body.Contains("https://bixi.alicdn.com") && body.Contains("\"action\": \"deny\""))
                    {
                        await TkEndpointManager.SuspendAsync(_accountId, "tool_links", TkEndpointManager.SuspendReason.Passive);
                        result.channel = TkChannelEnum.tb;
                        result.link_type = LinkTypeEnum.unknown;
                        result.subCode = TkSubCodeEnum.ParseDeny;
                        result.success = false;
                        result.message = "waf_block";
                        result.reason = "接口风控";
                        return result;
                    }
                    throw new Exception(body);
                }
                

                if (body.Contains("https://bixi.alicdn.com") && body.Contains("\"action\": \"deny\""))
                {
                    await TkEndpointManager.SuspendAsync(_accountId, "tool_links", TkEndpointManager.SuspendReason.Passive);
                    result.channel = TkChannelEnum.tb;
                    result.link_type = LinkTypeEnum.unknown;
                    result.subCode = TkSubCodeEnum.ParseDeny;
                    result.success = false;
                    result.message = "waf_block";
                    result.reason = "接口风控";
                    return result;
                }

                bool success = root.Read<bool>("success", false);


                string message = root.Read("message", string.Empty);
                string info_message = root.PathRead("info.message", string.Empty);
                if (!string.IsNullOrEmpty(info_message)) message = info_message;

                string taoToken = root.PathRead("data.taoToken", string.Empty);
                string shortLinkurl = root.PathRead("data.shortLinkurl", string.Empty);

                string couponLinkTaoToken = root.PathRead("data.couponLinkTaoToken", string.Empty);
                string couponShortLinkUrl = root.PathRead("data.couponShortLinkUrl", string.Empty);
                decimal couponAmount = root.PathRead<decimal>("data.couponAmount", 0);
                string couponEffectiveEndTime = root.PathRead("data.couponEffectiveEndTime", string.Empty);
                string couponEffectiveStartTime = root.PathRead("data.couponEffectiveStartTime", string.Empty);

                string itemId = root.PathRead("data.itemId", string.Empty);
                string mktId = root.PathRead("data.outputMktId", string.Empty);
                string itemName = root.PathRead("data.itemName", string.Empty);
                decimal promotionPrice = root.PathRead<decimal>("data.promotionPrice", 0);
                string sellerNickName = root.PathRead("data.sellerNickName", string.Empty);
                string shopTitle = root.PathRead("data.shopTitle", string.Empty);
                string pic = root.PathRead("data.pic", string.Empty);
                if (pic.StartsWith("//")) pic = "https:" + pic;

                string qrCodeUrl = root.PathRead("data.qrCodeUrl", string.Empty);


                if (response.ResponseMessage != null)
                {

                    switch (response.ResponseMessage.StatusCode)
                    {
                        case System.Net.HttpStatusCode.OK:
                            {
                                if (couponAmount > 0 && !string.IsNullOrEmpty(couponLinkTaoToken) && !string.IsNullOrEmpty(couponShortLinkUrl))
                                {
                                    taoToken = couponLinkTaoToken;
                                    shortLinkurl = couponShortLinkUrl;
                                }
                                string shortLink = GetLink(taoToken);
                                content = ReplaceUrls(content, shortLink);
                            }
                            break;
                        case System.Net.HttpStatusCode.Found:
                            string location = response.ResponseMessage.Headers.Location.OriginalString;
                            if (!string.IsNullOrEmpty(location) && location.Contains("www.alimama.com/member/login.htm"))
                            {
                                success = false;
                                message = "nologin";
                            }
                            break;
                        default:
                            {
                                success = false;
                                message = "other";
                            }
                            break;
                    }
                }
                if (!success)
                {
                    shortLinkurl = GetLink(content);
                    switch (message)
                    {
                        case "该商品已经下架或未加入淘宝客":
                        case "该链接不支持转化，请更换链接尝试":
                            result.subCode = TkSubCodeEnum.NoConvert;
                            break;
                        case "网络错误":
                            result.subCode = TkSubCodeEnum.NetError;
                            break;
                        default:
                            var _headers = response.ResponseMessage.Headers;
                            var headers = "";
                            foreach (var h in _headers)
                            {
                                foreach (var Value in h.Value)
                                {
                                    headers += $"{h.Key}: {Value}\n";
                                }
                            }
                            _ = new LoggerLibrary("api_error", "fail")
                                .Info(message, content)
                                .Info(headers, body)
                                .SaveAsync();
                            break;
                    }
                }

                shortLinkurl = GetLink(taoToken);
                string deeplink_url = GetDeeplink(shortLinkurl);

                result.channel = TkChannelEnum.tb;

                if (success)
                {
                    result.subCode = TkSubCodeEnum.Success;
                    switch (result.link_type)
                    {
                        case LinkTypeEnum.profile:
                        case LinkTypeEnum.goods:
                        case LinkTypeEnum.video:
                        case LinkTypeEnum.live:
                            break;
                        default:
                            result.link_type = LinkTypeEnum.goods;
                            break;
                    }
                }

                result.success = success;
                result.message = message;
                result.reason = string.Empty;

                result.content = content;
                result.couponAmount = couponAmount;
                result.couponEffectiveEndTime = couponEffectiveEndTime;
                result.couponEffectiveStartTime = couponEffectiveStartTime;
                result.taoToken = taoToken;
                if (!string.IsNullOrEmpty(shortLinkurl))
                {
                    result.shortLinkurl = shortLinkurl;
                    result.deeplink_url = deeplink_url;
                }
                result.mktId = mktId;

                result.itemId = itemId;
                result.itemName = itemName;
                result.promotionPrice = promotionPrice;
                result.sellerNickName = sellerNickName;
                result.shopTitle = shopTitle;
                result.pic = pic;
                result.qrCodeUrl = qrCodeUrl;
            }
            catch (Exception ex)
            {
                if (response.ResponseMessage?.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    if (body.Contains("<p>抱歉！页面无法访问……</p>"))
                    {
                        throw new APIException("抱歉！页面无法访问……");
                    }
                }
                throw;
            }
            return result;
        }

    }

}