把即刻附近动态替换为精选

前言

前一阵写了个抓取即刻社区大V动态的爬虫，来筛选互动量比较高的动态。

由 三丰的机器人 每天、每周发布一个静态网页。

例如 2022-06-07、2022-05-27

由于前端能力有限，静态网页不能完全还原 APP 的显示效果，就想着把这些动态放到 APP 内展示，附近动态页我几乎不看，那就把这个页面的内容替换掉吧~

抓包

得益于 iOS 强大的生态能力，我们可以通过第三方软件修改 APP 发出的网络包，先抓包看一下接口参数响应。

接口地址

https://47.99.112.78/1.0/nearbyFeed/list

参数

{
  "location": "110.36214433321533,31.84648323980757",
  "coordsys": "wgs84",
  "limit": 10,
  "trigger": "user"
}

参数很简单, 只有坐标和分页信息, 替换静态动态的话跟这些参数无关，重点关注响应。

响应

{
    "data":[
        {
            "id":"629e91765c9a1731570e2d0e",
            "type":"ORIGINAL_POST",
            "content":"稳定、安定、永定，来自永定门的启发\n2022高考加油✊",
            "urlsInText":[

            ],
            "status":"NORMAL",
            "isCommentForbidden":false,
            "likeCount":0,
            "commentCount":0,
            "repostCount":0,
            "shareCount":0,
            "topic":{
                "id":"5540eca0e4b0b63be5c7a5a9",
                "type":"TOPIC",
                "content":"高考加油站",
                "subscribersCount":108382,
                "squarePicture":{
                    "format":"jpeg",
                    "picUrl":"https://cdn.jellow.site/Fnxa6B6WexBT6JHSLjW6M3r-AruO.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/1000x1000%3E",
                    "middlePicUrl":"https://cdn.jellow.site/Fnxa6B6WexBT6JHSLjW6M3r-AruO.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/800x800%3E",
                    "smallPicUrl":"https://cdn.jellow.site/Fnxa6B6WexBT6JHSLjW6M3r-AruO.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/300x300%3E",
                    "thumbnailUrl":"https://cdn.jellow.site/Fnxa6B6WexBT6JHSLjW6M3r-AruO.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/120x120%3E",
                    "livePhoto":null,
                    "themes":{

                    },
                    "nft":null
                },
                "briefIntro":"高考在即，即刻为你加油打气，一起分享关于高考的有用经验和信息！",
                "topicType":"OFFICIAL",
                "operateStatus":"ONLINE",
                "isValid":true,
                "isVerified":false,
                "topicId":0,
                "isSearchable":false,
                "messagePrefix":"高考重要动态",
                "internalTags":[

                ],
                "customTags":[

                ],
                "auditStatus":"",
                "newCategory":[

                ],
                "involvedUsers":null,
                "entryTab":"",
                "tabs":[

                ],
                "rectanglePicture":null,
                "pictureUrl":"",
                "thumbnailUrl":"",
                "subscribedStatusRawValue":0,
                "subscribedAt":"",
                "ref":"NEARBY_FEED_POST_TOPIC",
                "isDreamTopic":false,
                "isAnonymous":false,
                "enablePictureComments":true,
                "enablePictureWatermark":true,
                "timeForRank":"",
                "lastMessagePostTime":"2022-06-08T06:12:14.385Z",
                "createdAt":"",
                "updatedAt":"",
                "subscribersTextSuffix":"名即友已加入",
                "subscribersName":"即友",
                "friendsAlsoSubscribe":"",
                "maintainer":null,
                "isUserTopicAdmin":false,
                "activitySection":null,
                "activitySections":[

                ],
                "tips":{
                    "inDraft":"",
                    "inComment":""
                },
                "toppingArea":null,
                "inShortcuts":false,
                "preferSection":"",
                "relatedHashtags":[

                ],
                "intro":"高考在即，即刻为你加油打气，一起分享关于高考的有用经验和信息！",
                "squarePostUpdateTime":"2022-06-08T06:12:14.385Z",
                "subscribersAction":"已加入",
                "approximateSubscribersCount":"10万",
                "subscribersDescription":"10万名即友已加入",
                "isCommentForbidden":false,
                "botCount":0,
                "recentPost":"",
                "source":"",
                "enableForUserPost":true
            },
            "poi":{
                "poiId":"B0FFIZ0SZ2",
                "name":"永定门城楼",
                "location":[
                    116.399324,
                    39.872468
                ],
                "countryname":"中国",
                "pname":"北京市",
                "cityname":"北京市",
                "formattedAddress":"永定门城楼永定门东街与永定门内大街交叉口西50米"
            },
            "pictures":[

            ],
            "collected":false,
            "collectTime":null,
            "user":{
                "id":"62681d1919f10b001002e206",
                "username":"38e2993c-a7ba-4e57-b94b-d30b0ad727af",
                "screenName":"有人知晓",
                "createdAt":"2022-04-26T16:00:00.000Z",
                "updatedAt":"2022-06-07T11:37:18.515Z",
                "isVerified":false,
                "verifyMessage":"",
                "briefIntro":"每天更新#时间仓库 摄影\n拿出手机，我们一起拍好照片，纪录时间\n未来无人知晓，一起做到更好",
                "avatarImage":{
                    "thumbnailUrl":"https://cdn.jellow.site/FsxnWHH-LfDN4_JIK6tTuQXMpekbv3.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/!120x120r/gravity/Center/crop/!120x120a0a0",
                    "smallPicUrl":"https://cdn.jellow.site/FsxnWHH-LfDN4_JIK6tTuQXMpekbv3.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/!300x300r/gravity/Center/crop/!300x300a0a0",
                    "middlePicUrl":"https://cdn.jellow.site/FsxnWHH-LfDN4_JIK6tTuQXMpekbv3.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/!800x800r/gravity/Center/crop/!800x800a0a0",
                    "picUrl":"https://cdn.jellow.site/FsxnWHH-LfDN4_JIK6tTuQXMpekbv3.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/!1000x1000r/gravity/Center/crop/!1000x1000a0a0",
                    "format":"jpeg"
                },
                "decorations":{

                },
                "profileImageUrl":"https://cdn.jellow.site/FsxnWHH-LfDN4_JIK6tTuQXMpekbv3.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/!120x120r/gravity/Center/crop/!120x120a0a0",
                "statsCount":{
                    "topicSubscribed":0,
                    "topicCreated":0,
                    "followedCount":1,
                    "followingCount":21,
                    "highlightedPersonalUpdates":0,
                    "liked":35,
                    "respectedCount":0
                },
                "isSponsor":false,
                "backgroundImage":{
                    "picUrl":"https://cdn.jellow.site/Ftpq4I3OB8Yy3gkQLOXM_mJS6aypv3.jpg?imageMogr2/auto-orient/heic-exif/1/format/jpeg/thumbnail/1000x1000%3E"
                },
                "bio":"每天更新#时间仓库 摄影\n拿出手机，我们一起拍好照片，纪录时间\n未来无人知晓，一起做到更好",
                "gender":"MALE",
                "country":"001",
                "province":"001011",
                "refRemark":{
                    "type":"ORIGINAL_POST",
                    "refId":"629e91765c9a1731570e2d0e"
                },
                "ref":"NEARBY_FEED_POST",
                "storyStatus":"NONE"
            },
            "createdAt":"2022-06-06T23:44:54.379Z",
            "isFeatured":false,
            "enablePictureComments":true,
            "repostable":true,
            "isSuppressed":false,
            "video":{
                "type":"VIDEO",
                "image":{
                    "picUrl":"https://cdn.jellow.site/FqVtf_Hntjok3hiD6nTG2ztI19M1?imageMogr2/auto-orient/heic-exif/1/format/jpeg?imageView2/0/w/800/h/800/format/jpeg/q/80",
                    "thumbnailUrl":"https://cdn.jellow.site/FqVtf_Hntjok3hiD6nTG2ztI19M1?imageMogr2/auto-orient/heic-exif/1/format/jpeg?imageView2/0/w/200/h/200/format/jpeg/q/80",
                    "format":"jpeg"
                },
                "duration":20572,
                "width":1080,
                "height":1440
            },
            "rollouts":{
                "wmpShare":{
                    "id":"gh_501436d6aeea",
                    "path":"/pages/message?id=629e91765c9a1731570e2d0e&type=ORIGINAL_POST"
                }
            },
            "scrollingSubtitles":[
                {
                    "text":"每天更新#时间仓库 摄影  拿出手机，我们一起拍好照片，纪录时间  未来无人知晓，一起做到更好",
                    "type":"COMMON"
                }
            ],
            "readTrackInfo":{
                "feedType":"LOCAL_POST"
            },
            "distance":"3.8km"
        }
    ],
    "loadMoreKey":{
        "getPostsWithinTenKm":20,
        "step":"getPostsWithinTenKm",
        "location":{
            "lnglat":"116.36834300920364,39.84785189456118",
            "coordsys":"gcj02",
            "ip":"115.47.100.187",
            "cityname":"北京市",
            "pname":"北京市",
            "countryname":"中国"
        },
        "page":1
    }
}

响应结构比较复杂，看了一下跟获取动态详情接口的响应结构基本一致，那就好办了。
我们爬取的有精选动态 ID, 挨个调用动态详情接口, 把多条动态的响应数据拼成数组返回就好了，中间加上一层缓存提高性能。

伪装接口

怎么实现的就不细讲了，下面就是我仿照附近动态的结构模拟的一个接口，返回的内容是当天精选动态。

curl -X POST -H "Content-Type:application/json" https://jike.asynctask.cn/api/recommendFeed  --data '{}'

下一步我们就开始狸猫换太子。

修改响应

修改接口响应用的是 iOS 端的 QuantumultX APP

规则文件

hostname = api.ruguoapp.com,47.99.112.78

^https?:\/\/api\.ruguoapp\.com\/1\.0\/nearbyFeed\/list url script-response-body https://raw.githubusercontent.com/junbaor/script/main/jike/qx_recommend_v3.js

替换逻辑

const url = "https://jike.asynctask.cn/api/recommendFeed";
const method = "POST";
const headers = { "Content-Type": "application/json" };
const data = {};

const myRequest = {
    url: url,
    method: method,
    headers: headers,
    body: JSON.stringify(data)
};

$task.fetch(myRequest).then(response => {
    $done(response.body);
}, reason => {
    console.log("😿 替换动态广场失败, 原因: " + reason.error);
    $notify("😿 替换动态广场失败", "", "原因: " + reason.error + " 请刷新重试");
    $done();
});

先是对 api.ruguoapp.com,47.99.112.78 这两个域名 IP 开启 https 解密, 这样才能识别到请求内容。
然后用脚本替换掉 https://api.ruguoapp.com/1.0/nearbyFeed/list 接口的响应, 把我们伪装接口的内容放到响应体中，这样 APP 就能正常展示了。

其他类似软件也可以实现，原理相同，期待有缘人编写适配规则。

使用方式

前提条件：拥有 iPhone 和 QuantumultX APP

1. 打开 MitM 开关，按照提示信任证书
2. 打开重写开关
3. 点击引用，添加引用链接 https://raw.githubusercontent.com/junbaor/script/main/jike/qx_recommend_v3.conf
4. 打开即刻 APP 刷新附近动态列表试试

友情提醒, 软件不能是盗版，不然重写功能不会生效。