mirror of
https://github.com/SocialSisterYi/bilibili-API-collect.git
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181 lines
4.9 KiB
Markdown
181 lines
4.9 KiB
Markdown
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# 全站广播
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## 获取广播服务器地址
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> https://api.bilibili.com/x/web-interface/broadcast/servers
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*请求方式:GET*
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**url参数:**
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| 参数名 | 类型 | 内容 | 必要性 | 备注 |
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| -------- | ---- | -------- | ------ | --------------------------------- |
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| platform | str | 平台选择 | 必要 | 为web时输出域名<br />其他时输出ip |
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**json回复:**
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根对象:
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| 字段 | 类型 | 内容 | 备注 |
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| ------- | ---- | -------- | --------------------------- |
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| code | num | 返回值 | 0:成功<br />-400:请求错误 |
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| message | str | 错误信息 | 默认为0 |
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| ttl | num | 1 | |
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| data | obj | 信息本体 | |
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`data`对象:
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| 字段 | 类型 | 内容 | 备注 |
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| ------------- | ------ | ------------------ | ---- |
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| domain | str | 广播服务器url | |
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| tcp_port | num | tcp端口 | |
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| ws_port | num | websocket端口 | |
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| wss_port | num | websocket ssl端口 | |
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| heartbeat | num | 最大心跳包间隔时间 | |
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| nodes | array | 服务节点地址列表 | |
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| backoff | obj | ??? | |
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| heartbeat_max | num | ??? | |
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`data`中的`nodes`数组:
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| 项 | 类型 | 内容 | 备注 |
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| ---- | ---- | ------------- | ---- |
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| 0 | str | 服务节点1 | |
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| n | str | 服务节点(n+1) | |
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| …… | str | …… | |
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`data`中的`backoff`对象:
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| 字段 | 类型 | 内容 | 备注 |
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| ---------- | ---- | ------ | ---- |
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| max_delay | num | ??? | |
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| base_delay | num | ??? | |
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| factor | num | ??? | |
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| jitter | num | ??? | |
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示例:
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当`platform`=`web`时,不显示节点ip
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```shell
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curl -G 'https://api.bilibili.com/x/web-interface/broadcast/servers' \
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--data-urlencode 'platform=web'
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```
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<details>
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<summary>查看响应示例:</summary>
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```json
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{
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"code": 0,
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"message": "0",
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"ttl": 1,
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"data": {
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"domain": "broadcast.chat.bilibili.com",
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"tcp_port": 7821,
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"ws_port": 7822,
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"wss_port": 7823,
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"heartbeat": 30,
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"nodes": ["broadcast.chat.bilibili.com"],
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"backoff": {
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"max_delay": 300,
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"base_delay": 3,
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"factor": 1.8,
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"jitter": 0.3
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},
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"heartbeat_max": 3
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}
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}
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```
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</details>
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当`platform`=其他时,显示节点ip
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```shell
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curl -G 'https://api.bilibili.com/x/web-interface/broadcast/servers' \
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--data-urlencode 'platform=1'
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```
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<details>
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<summary>查看响应示例:</summary>
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```json
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{
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"code": 0,
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"message": "0",
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"ttl": 1,
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"data": {
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"domain": "broadcast.chat.bilibili.com",
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"tcp_port": 7821,
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"ws_port": 7822,
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"wss_port": 7823,
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"heartbeat": 30,
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"nodes": ["134.175.207.130", "120.92.150.90", "120.92.150.212", "192.144.173.136", "154.8.217.108"],
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"backoff": {
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"max_delay": 300,
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"base_delay": 3,
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"factor": 1.8,
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"jitter": 0.3
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},
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"heartbeat_max": 3
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}
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}
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```
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</details>
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## 服务器数据包
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连接服务器分为三种方式,分别是ws wss tcp,数据包分为上行和下行
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单个数据包分为头部和正文
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其中上行的有认证包 心跳包,下行的有认证包回复 心跳包回复 普通包
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建立连接后超过30s内未发送认证包,或握手后30s内未发送心跳包,或发送了错误的认证包,都会被强制断开连接
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操作流程:
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1.发送认证包,等待接收认证回复
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2.确认握手成功后,每30s内发送心跳包,并立即接收心跳包回复
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3.空闲时间接收普通包
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### 数据包结构
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头部通用于上行和下行数据包
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头部格式:
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| 偏移量 | 长度(字节) | 类型 | 含义 |
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| ------ | ------------ | ------ | ---------------------------------------------------- |
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| 0x00 | 4 | uint32 | 封包总大小(头部大小+正文大小) |
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| 0x04 | 2 | uint16 | 头部大小(一般为0x0012,18字节) |
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| 0x06 | 2 | uint16 | 协议版本,可取常数1 |
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| 0x08 | 4 | uint32 | 操作码(包类型)<br />**见下表** |
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| 0x0C | 4 | uint32 | sequence(请求次数),可取常数1<br />对于普通包恒为0 |
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| 0x10 | 2 | uint16 | 保留,一般为0 |
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操作码:
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| 代码 | 含义 |
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| ---- | -------- |
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| 2 | 心跳 |
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| 3 | 心跳回复 |
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| 7 | 认证 |
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| 8 | 认证回复 |
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| 1000 | 实时弹幕 |
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**示例:**
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以下为一个认证包示例,正文为文本`test`
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```
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00000000 00 00 00 16 00 12 00 01 00 00 00 07 00 00 00 01 |................|
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00000010 00 00 74 65 73 74 |..test|
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```
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