player-loader-1.8.2.min.js 有写live sub 消息格式

[gMan1990]

bilibili-api/src/main/kotlin/com/hiczp/bilibili/api/live/websocket/Packet.kt

Line 13 in f156e49

* @param shortTag 一种 tag, 如果是非 command 数据包则为 1, 否则为 0, short 类型

bilibili-api/src/main/kotlin/com/hiczp/bilibili/api/live/websocket/PresetPacket.kt

Line 24 in 5faac14

"protover" to 0 //该值总为 0

• https://s1.hdslb.com/bfs/static/player/live/loader/player-loader-1.8.2.min.js

e[e.WS_OP_HEARTBEAT = 2] = "WS_OP_HEARTBEAT",
e[e.WS_OP_HEARTBEAT_REPLY = 3] = "WS_OP_HEARTBEAT_REPLY",
e[e.WS_OP_MESSAGE = 5] = "WS_OP_MESSAGE",
e[e.WS_OP_USER_AUTHENTICATION = 7] = "WS_OP_USER_AUTHENTICATION",
e[e.WS_OP_CONNECT_SUCCESS = 8] = "WS_OP_CONNECT_SUCCESS",

e[e.WS_PACKAGE_HEADER_TOTAL_LENGTH = 16] = "WS_PACKAGE_HEADER_TOTAL_LENGTH",
e[e.WS_PACKAGE_OFFSET = 0] = "WS_PACKAGE_OFFSET",
e[e.WS_HEADER_OFFSET = 4] = "WS_HEADER_OFFSET",
e[e.WS_VERSION_OFFSET = 6] = "WS_VERSION_OFFSET",
e[e.WS_OPERATION_OFFSET = 8] = "WS_OPERATION_OFFSET",
e[e.WS_SEQUENCE_OFFSET = 12] = "WS_SEQUENCE_OFFSET",
e[e.WS_BODY_PROTOCOL_VERSION = 1] = "WS_BODY_PROTOCOL_VERSION",
e[e.WS_HEADER_DEFAULT_VERSION = 1] = "WS_HEADER_DEFAULT_VERSION",
e[e.WS_HEADER_DEFAULT_OPERATION = 1] = "WS_HEADER_DEFAULT_OPERATION",
e[e.WS_HEADER_DEFAULT_SEQUENCE = 1] = "WS_HEADER_DEFAULT_SEQUENCE",

WS_BODY_PROTOCOL_VERSION_NORMAL: 0,
WS_BODY_PROTOCOL_VERSION_DEFLATE: 2,

protover: parseInt(n.protover, 10) || i.a.WS_BODY_PROTOCOL_VERSION_NORMAL

• 当前从电脑网页端整理的

发送方	总长, 4	head长, 2	version, 2	operation, 4	sequence, 4	body
客户端		16	1	7	1	USER_AUTHENTICATION, 进入房间 有个protover(Protocol Version)参数猜测是(指定服务端优先以什么格式给我发消息，0=NORMAL，2=DEFLATE，1=不知道，但貌似已失效)
服务端		16	1	8	1	CONNECT_SUCCESS, 进房成功
客户端		16	1	2	1	HEARTBEAT, 心跳, body不填都行
服务端		16	1	3	1	HEARTBEAT_REPLY, 心跳响应, body=人气(int)
服务端		16	2	5	0	MESSAGE, 消息, body=deflate压缩
└─		16	0	5	0	解压后同下
服务端		16	0	5	0	MESSAGE, 消息, body=字符串(utf8)

• 如果把head+body叫做一个Package，我记得之前收到一次消息可能包含多个Package的
  • 当前看，deflate解压后，也可能包含多个Package的

[czp3009]

感谢提醒, 下次重构时加入

[gMan1990]

bilibili-api/src/main/kotlin/com/hiczp/bilibili/api/live/websocket/Parser.kt

Line 15 in f156e49

inline class DanmakuMessage(val data: JsonObject) {

info[0]=弹幕属性 info[1]=弹幕内容 info[2]=用户信息 info[3]=用户勋章 info[4]=观众等级
info[5]=用户头衔

?? 有木有那个字段是标识这条弹幕是 用户送礼产生的那种什么干杯弹幕？

[czp3009]

用户送礼后, 在聊天栏看到的送礼提示是一个 cmd 为 SEND_GIFT 的消息.

节奏风暴等点击抽奖后会发送弹幕的那种操作, 实际上是客户端自动发了一条弹幕, 通过 API 调用, 不发送弹幕也能抽奖(抽奖是一个 RESTful API, 与弹幕推送无关). 而发出的这条弹幕就是一个普通弹幕.

各类常见消息见此 https://github.com/czp3009/bilibili-api/tree/kotlin/record/%E7%9B%B4%E6%92%AD%E5%BC%B9%E5%B9%95

(可能有些已经更新, 但是大致内容不会改变

[gMan1990]

测试结果 info0.get(0)就是指info[0][0] info.get(6)就是指info[6]

info0.get(0),
info0.get(1),
info0.get(2),
info0.get(6),
info0.get(8),
info0.get(9),
info0.get(10),
info.get(6),
info.get(7),
info.get(8), //null
info.get(1)

0 1 25 0 0 0 0   0 0  null  砸傻了
0 1 25 0 0 0 0   0 3  null  然后就失去了记忆
0 1 25 0 0 0 2   0 2  null  喜欢鹤鹤的小伙伴
0 1 25 0 0 2 0   0 0  null  哔哩哔哩 (゜-゜)つロ 干杯~
0 1 25 0 0 2 0   0 3  null  哔哩哔哩 (゜-゜)つロ 干杯~
0 1 25 0 0 2 2   0 2  null  哔哩哔哩 (゜-゜)つロ 干杯~

所以 info0.get(9)=2 是送礼后刷屏产生的那种干杯弹幕
至于 info0.get(10), info.get(7) 猜测是房管/舰队相关

[czp3009]

info[0] 是用于给弹幕播放器生成弹幕用的, 与获取番剧弹幕时得到的 xml 包含的信息几乎一样, 但是顺序不一样.

info[0][7] 是用户 id 的 crc32 校验和.

至于其他几个数字真的很难测, 而且这个应该不会跟送礼有关, 因为 info[0] 整段都是给弹幕播放器渲染弹幕使用的.

这个 issue 不要关, 我先去隔壁群问问这个事情.

[gMan1990]

info[0][7] 是用户 id 的 crc32 校验和. 我没写info[0][7] 我写info[7]

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