1223 添加新的淘宝商品图片获取方法

lib/util/taobao/goods_pic_model.dart

@@ -0,0 +1,45 @@
+class GoodsPicModel {
+  String api;
+  Data data;
+  List<String> ret;
+  String v;
+
+  GoodsPicModel({this.api, this.data, this.ret, this.v});
+
+  GoodsPicModel.fromJson(Map<String, dynamic> json) {
+    api = json['api'];
+    data = json['data'] != null ? new Data.fromJson(json['data']) : null;
+    ret = json['ret'].cast<String>();
+    v = json['v'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['api'] = this.api;
+    if (this.data != null) {
+      data['data'] = this.data.toJson();
+    }
+    data['ret'] = this.ret;
+    data['v'] = this.v;
+    return data;
+  }
+}
+
+class Data {
+  List<String> pages;
+  List<String> images;
+
+  Data({this.pages, this.images});
+
+  Data.fromJson(Map<String, dynamic> json) {
+    pages = json['pages'].cast<String>();
+    images = json['images'].cast<String>();
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['pages'] = this.pages;
+    data['images'] = this.images;
+    return data;
+  }
+}

lib/util/taobao/taobao_loader.dart

@@ -1,9 +1,22 @@
+import 'dart:convert';
+import 'dart:io';
+
 import 'package:dio/dio.dart';
+import 'package:dio_cookie_manager/dio_cookie_manager.dart';
+import 'package:zhiying_comm/util/taobao/goods_pic_model.dart';
 import 'package:zhiying_comm/zhiying_comm.dart';
 
+import 'package:cookie_jar/cookie_jar.dart';
+import 'package:convert/convert.dart';
+import 'package:crypto/crypto.dart';
+
 // 淘宝详情图抓取
 class TaobaoLoader {
   static Future<List<String>> loadImages(String id) async {
+    return _loadImagesNew(id);
+  }
+
+  static Future<List<String>> _loadImages1(String id) async {
     String url =
         'http://h5api.m.taobao.com/h5/mtop.taobao.detail.getdesc/6.0/?api=mtop.taobao.detail.getdesc&appkey=12574478&data={"type":"0","f":"TB1AsvbfnqWBKNjSZFx8qwpLpla","id":"${id.toString()}"}&dataType=json&jsv=2.4.11&sign=e93a97b7e9a9a459297f4e689051c895&t=1538180732308&type=json';
     Dio dio = Dio();
@@ -21,8 +34,7 @@ class TaobaoLoader {
         if (image != null && image != '') {
           if (image.startsWith('//')) {
             images.add('http:' + image);
-          } else
-          if (image.startsWith('https://') || image.startsWith('http://')) {
+          } else if (image.startsWith('https://') || image.startsWith('http://')) {
             images.add(image);
           }
         }
@@ -31,7 +43,130 @@ class TaobaoLoader {
       Logger.error(err);
     }
 
+    return images;
+  }
+
+  ///方法说明：通过破解淘宝签名接口获取商品详情图片
+  ///流程：第一次请求接口拿到cookie数据，拼接签名数据，第二次请求接口拿到图片连接数据
+  ///方法地址
+  ///https://darktiantian.github.io/%E8%AE%B0%E4%B8%80%E6%AC%A1%E6%B7%98%E5%AE%9D%E6%8E%A5%E5%8F%A3sign%E7%AD%BE%E5%90%8D%E7%A0%B4%E8%A7%A3/
+  static Future<List<String>> _loadImagesNew(String id) async {
+    String data = "{\"item_num_id\":\"" + id + "\"}";
+    String time = DateTime.now().millisecondsSinceEpoch.toString();
+    String appkey = "12574478"; //文章中使用的appkey
+    String url = "https://h5api.m.taobao.com/h5/mtop.wdetail.getitemdescx/4.9/?jsv=2.4.11&appKey=$appkey&t=$time"
+        "&sign=FAKE_SIGN_WITH_ANYTHING&api=mtop.wdetail.getItemDescx&v=4.9&type=jsonp&dataType=jsonp&callback=mtopjsonp2&data="
+        "$data";
+    Logger.log("url: " + url);
+    Dio dio = Dio(BaseOptions(responseType: ResponseType.plain));
+    var cookieJar = CookieJar();
+    //dio绑定cookie管理器，以便第一次请求后获取cookie数据
+    dio.interceptors.add(CookieManager(cookieJar));
+    Map<String, dynamic> headers = new Map();
+    headers['User-Agent'] =
+        "Mozilla/5.0 (iPhone; CPU iPhone OS 9_3_4 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13G35 Safari/601.1";
+    Options options = new Options(headers: headers);
+    //首次请求获取cookie
+    await dio.get(url, options: options);
+
+    String token = "";
+    String _m_h5_tk = "";
+    String enc_token = "";
+    //根据第一次请求后返回的cookie拿到需要的数据
+    List<Cookie> cookieList = cookieJar.loadForRequest(Uri.parse(url));
+    for (int i = 0; i < cookieList.length; i++) {
+      Cookie cookie = cookieList[i];
+      Logger.log(cookie.name + " : " + cookie.value);
+      if ("_m_h5_tk" == cookie.name) {
+        _m_h5_tk = cookie.value;
+        List<String> token_with_time = cookie.value.split("_");
+        if (token_with_time.length > 0) {
+          token = token_with_time[0];
+        }
+      }
+      if ("_m_h5_tk_enc" == cookie.name) {
+        enc_token = cookie.value;
+      }
+    }
+
+    //设置第二次请求的cookie数据
+    Map<String, dynamic> headers2 = new Map();
+    headers2['cookie'] = "_m_h5_tk=$_m_h5_tk; _m_h5_tk_enc=$enc_token;"
+        "User-Agent=Mozilla/5.0 (iPhone; CPU iPhone OS 9_3_4 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13G35 Safari/601.1";
+    Options options2 = new Options(headers: headers2);
+
+    //设置签名
+    String time2 = DateTime.now().millisecondsSinceEpoch.toString();
+    String sign = token + "&" + time2 + "&" + appkey + "&" + data;
+    String mySign = string2Md5(sign);
+
+    //设置第二次请求的url
+    String url2 = "https://h5api.m.taobao.com/h5/mtop.wdetail.getitemdescx/4.9/?jsv=2.4.11&appKey=$appkey&t=$time2"
+        "&sign=$mySign&api=mtop.wdetail.getItemDescx&v=4.9&type=jsonp&dataType=jsonp&callback=mtopjsonp2&data="
+        "$data";
+
+    //进行第二次网络请求拿到图片数据
+    Dio dio2 = Dio(BaseOptions(responseType: ResponseType.plain));
+    Response response2 = await dio2.get(url2, options: options2);
+    Logger.log(response2.data);
+
+    //根据返回的数据，拼接图片链接数据
+    String result2 = response2.data;
+    String object = result2.substring(result2.indexOf("(") + 1, result2.length - 1);
+    Logger.log(object);
+    var json = jsonDecode(object);
+    GoodsPicModel model = GoodsPicModel.fromJson(json);
+    List<String> images = List();
+    if (null != model.data.images && model.data.images.length > 0) {
+      /**
+       * images字段的数据，在前面拼接好https:就可以作为商品详情的图片链接使用了
+       */
+      List<String> Images = model.data.images;
+      List<String> mPicList = [];
+      for (String pic in Images) {
+        if (pic.isNotEmpty) {
+          mPicList.add("https:" + pic);
+        }
+      }
+      Logger.log("mPicList图片：" + mPicList.length.toString() + "\n" + mPicList.toString());
+      if (mPicList.length > 0) {
+        return mPicList;
+      }
+    } else {
+      if (null != model.data.pages && model.data.pages.length > 0) {
+        /**
+         * pages字段的数据，数组中可能有多张图片的链接数据，以<img></img>标签框起来的
+         * 先去掉前面的<img>标签，再以</img>标签分割各个图片链接数据，
+         * 最后每个数据拼接上https:就可以作为商品详情图片链接返回了
+         * 经测试images字段和pages字段的数据是相同的，所以取一个字段的数据返回就可以了
+         */
+        List<String> pages = model.data.pages;
+        List<String> mPicList = [];
+        for (String pic in pages) {
+          String pic1 = pic.replaceAll("<img>", "");
+          List<String> pic2 = pic1.split("</img>");
+          if (pic2.length > 0) {
+            for (String s in pic2) {
+              if (s.isNotEmpty) {
+                mPicList.add("https:" + s);
+              }
+            }
+          }
+        }
+        Logger.log("图片2：" + mPicList.length.toString() + "\n" + mPicList.toString());
+        if (mPicList.length > 0) {
+          return mPicList;
+        }
+      }
+    }
 
     return images;
   }
+
+  // md5 加密
+  static String string2Md5(String data) {
+    var content = new Utf8Encoder().convert(data);
+    var digest = md5.convert(content);
+    return hex.encode(digest.bytes);
+  }
 }

pubspec.yaml

@@ -74,6 +74,7 @@ dependencies:
   #保存文件到相册
   save_image: ^1.0.1
 
+  dio_cookie_manager: 1.0.0
 
 
 dev_dependencies: