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440 lines
13 KiB
440 lines
13 KiB
import { computed, reactive } from 'vue'
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import {
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getLivePlayURL,
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getLiveSession,
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heartbeatLive,
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joinLive,
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leaveLive,
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leaveLiveKeepalive,
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stopLive,
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} from '@/api/live'
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const PHASE_POLL_MS = 2500
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const PHASE_TIMEOUT_MS = 60_000
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const PLAY_RETRY_MAX = 3
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const PLAY_EXPIRE_FALLBACK_SEC = 270
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const PLAY_REFRESH_LEAD_MS = 30_000
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const LEASE_INVALID_CODE = 57006
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function isFatalPlayMediaError(err) {
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const msg = String(err?.message || err || '').toLowerCase()
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const name = String(err?.name || '')
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const code = Number(err?.code)
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return (
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name === 'SecurityError' ||
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code === 403 ||
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msg.includes('ssl') ||
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msg.includes('tls') ||
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msg.includes('cipher') ||
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msg.includes('err_ssl') ||
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msg.includes('mixed content') ||
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msg.includes('cors') ||
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msg.includes('certificate')
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)
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}
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function isRecoverablePlayError(err) {
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// LivePlayer 启动窗口内的 404 会自行退避，不冒泡；仅忽略显式 recoverable，避免吞掉窗口耗尽后的 404
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return err?.recoverable === true
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}
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function isLeaseInvalidError(err) {
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return Number(err?.code) === LEASE_INVALID_CODE
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}
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function safeLeave(dockId, sessionId) {
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if (!dockId || !sessionId) return Promise.resolve()
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return leaveLive(dockId, sessionId).catch(() => {})
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}
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export function useMonitorLive({ getDockId, ui, getLivePlayer }) {
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const live = reactive({
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session: null,
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dockId: '',
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opening: false,
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playUrl: '',
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playUrlExpiresAt: 0,
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heartbeatTimer: null,
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phasePollTimer: null,
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playRefreshTimer: null,
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playRetryCount: 0,
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phasePollStartedAt: 0,
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})
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let playURLRequest = null
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let disposed = false
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let openGen = 0
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let rejoinBusy = false
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const livePhaseText = computed(() => {
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if (live.opening && !live.session) return '打开中'
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if (!live.session) return '待机'
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const phase = live.session.phase
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if (phase === 'streaming') return live.playUrl.startsWith('fake://') ? '模拟直播' : '直播中'
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if (phase === 'starting') return '启动中'
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if (phase === 'reconnecting') return '重连中'
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if (phase === 'stopping') return '停止中'
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if (phase === 'failed') return '启动失败'
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return '已停止'
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})
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const canFullscreenLive = computed(() => !!live.playUrl && !live.playUrl.startsWith('fake://'))
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function clearTimers() {
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window.clearTimeout(live.heartbeatTimer)
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window.clearTimeout(live.phasePollTimer)
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window.clearTimeout(live.playRefreshTimer)
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live.heartbeatTimer = null
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live.phasePollTimer = null
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live.playRefreshTimer = null
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}
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function resetLocal() {
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clearTimers()
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playURLRequest = null
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live.session = null
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live.dockId = ''
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live.opening = false
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live.playUrl = ''
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live.playUrlExpiresAt = 0
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live.playRetryCount = 0
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live.phasePollStartedAt = 0
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}
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function isCurrentOpen(gen) {
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return !disposed && gen === openGen
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}
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function markPlayFatal(message) {
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window.clearTimeout(live.playRefreshTimer)
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live.playRefreshTimer = null
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live.playUrl = ''
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live.playUrlExpiresAt = 0
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live.playRetryCount = PLAY_RETRY_MAX
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ui.toast(message)
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}
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function toggleLive() {
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if (disposed || live.opening) return
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if (live.session) closeLive()
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else openLive()
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}
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function fullscreenLive() {
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if (!canFullscreenLive.value) {
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ui.toast('当前无可全屏播放的视频流')
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return
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}
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const ok = getLivePlayer()?.requestFullscreen?.()
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if (!ok) ui.toast('当前浏览器不支持全屏')
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}
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async function openLive() {
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if (disposed || live.opening || live.session) return
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const dockId = getDockId?.()
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if (!dockId) return
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const gen = ++openGen
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live.opening = true
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try {
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const result = await joinLive(dockId)
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const session = result?.session
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const sessionId = session?.id
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// 页面已切走/关闭：不要写入状态，立刻释放刚拿到的 viewer lease
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if (!isCurrentOpen(gen)) {
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if (sessionId) await safeLeave(dockId, sessionId)
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return
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}
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if (!sessionId) {
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ui.toast('直播会话无效')
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return
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}
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live.session = session
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live.dockId = dockId
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live.playUrl = ''
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live.playUrlExpiresAt = 0
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live.playRetryCount = 0
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scheduleLiveHeartbeat(result.leaseExpiresAt)
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if (session.phase === 'streaming') {
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try {
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await refreshPlayURL()
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} catch (e) {
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if (!isCurrentOpen(gen)) return
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await onPlayError(e)
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}
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} else {
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startPhasePolling()
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}
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} catch (e) {
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if (!isCurrentOpen(gen)) return
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ui.toast(e.message || '打开直播失败')
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} finally {
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if (gen === openGen) live.opening = false
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}
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}
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function startPhasePolling() {
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if (disposed) return
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window.clearTimeout(live.phasePollTimer)
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live.phasePollStartedAt = Date.now()
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live.phasePollTimer = window.setTimeout(pollPhaseOnce, PHASE_POLL_MS)
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}
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async function pollPhaseOnce() {
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if (disposed || !live.dockId || !live.session?.id) return
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if (Date.now() - live.phasePollStartedAt > PHASE_TIMEOUT_MS) {
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ui.toast('直播启动超时')
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await closeLive(false)
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return
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}
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const dockId = live.dockId
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const sessionId = live.session.id
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try {
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// http 解包后是 LiveSession 本体，不是 { session }
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const session = await getLiveSession(dockId, sessionId)
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if (disposed || !live.session || live.session.id !== sessionId) return
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live.session = session
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if (session.phase === 'streaming') {
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window.clearTimeout(live.phasePollTimer)
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live.phasePollTimer = null
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try {
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await refreshPlayURL()
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} catch (e) {
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if (disposed || !live.session || live.session.id !== sessionId) return
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await onPlayError(e)
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}
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return
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}
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if (session.phase === 'failed' || session.phase === 'stopped') {
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ui.toast(session.phase === 'failed' ? '直播启动失败' : '直播已停止')
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await closeLive(false)
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return
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}
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} catch (e) {
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if (disposed || !live.session || live.session.id !== sessionId) return
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if (isLeaseInvalidError(e)) {
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await rejoinAfterLeaseInvalid()
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return
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}
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ui.toast(e.message || '查询直播状态失败')
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await closeLive(false)
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return
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}
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if (disposed || !live.session || live.session.id !== sessionId) return
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live.phasePollTimer = window.setTimeout(pollPhaseOnce, PHASE_POLL_MS)
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}
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// 成功返回 true；失败抛错，由调用方决定是否 onPlayError（避免互相递归）
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// fromRetry: 播放错误触发的刷新不重置重试计数，避免无限重建
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async function refreshPlayURLOnce({ fromRetry = false } = {}) {
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if (disposed || !live.dockId || !live.session?.id) return false
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const dockId = live.dockId
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const sessionId = live.session.id
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const play = await getLivePlayURL(dockId, sessionId)
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if (disposed || !live.session || live.session.id !== sessionId) return false
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live.playUrl = play.playUrl || ''
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const nowSec = Math.floor(Date.now() / 1000)
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live.playUrlExpiresAt = Number(play.expiresAt) || nowSec + PLAY_EXPIRE_FALLBACK_SEC
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if (!fromRetry) live.playRetryCount = 0
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schedulePlayRefresh()
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return true
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}
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function refreshPlayURL(options = {}) {
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if (playURLRequest) return playURLRequest
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playURLRequest = refreshPlayURLOnce(options).finally(() => {
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playURLRequest = null
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})
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return playURLRequest
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}
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function schedulePlayRefresh() {
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if (disposed) return
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window.clearTimeout(live.playRefreshTimer)
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if (!live.playUrl || live.playUrl.startsWith('fake://') || !live.playUrlExpiresAt) return
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const delay = Math.max(5000, live.playUrlExpiresAt * 1000 - Date.now() - PLAY_REFRESH_LEAD_MS)
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live.playRefreshTimer = window.setTimeout(async () => {
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try {
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await refreshPlayURL()
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} catch (e) {
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if (disposed) return
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if (isLeaseInvalidError(e)) {
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await rejoinAfterLeaseInvalid()
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return
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}
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await onPlayError(e)
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}
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}, delay)
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}
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function scheduleLiveHeartbeat(expiresAt) {
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if (disposed) return
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window.clearTimeout(live.heartbeatTimer)
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const delay = Math.max(5000, (Number(expiresAt) * 1000 - Date.now()) / 2)
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live.heartbeatTimer = window.setTimeout(async () => {
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if (disposed || !live.dockId || !live.session?.id) return
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const dockId = live.dockId
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const sessionId = live.session.id
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try {
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const result = await heartbeatLive(dockId, sessionId)
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if (disposed || !live.session || live.session.id !== sessionId || live.dockId !== dockId) return
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live.session = result.session
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scheduleLiveHeartbeat(result.leaseExpiresAt)
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if (result.session.phase === 'streaming' && !live.playUrl) {
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try {
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await refreshPlayURL()
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} catch (e) {
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if (disposed || !live.session || live.session.id !== sessionId) return
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if (isLeaseInvalidError(e)) {
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await rejoinAfterLeaseInvalid()
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return
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}
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await onPlayError(e)
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}
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}
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} catch (e) {
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if (disposed || !live.session || live.session.id !== sessionId || live.dockId !== dockId) return
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if (isLeaseInvalidError(e)) {
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await rejoinAfterLeaseInvalid()
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return
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}
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ui.toast(e.message || '直播观看已结束')
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await closeLive(false)
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}
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}, delay)
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}
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async function rejoinAfterLeaseInvalid() {
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if (disposed || rejoinBusy) return
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rejoinBusy = true
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try {
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// 租约失效：停掉旧 session 的 play-url/heartbeat，再重新 join
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await closeLive(false)
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if (disposed) return
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ui.toast('观看租约已失效，正在重新加入直播')
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await openLive()
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} finally {
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rejoinBusy = false
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}
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}
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async function onPlayError(err) {
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if (disposed || !live.session) return
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// AbortError/NotAllowedError: browser pause / autoplay policy. Keep current playUrl.
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if (err?.name === 'AbortError' || err?.name === 'NotAllowedError') return
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// 启动期 404 由 LivePlayer 同地址退避处理；父层保持 heartbeat，不刷 /play-url
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if (isRecoverablePlayError(err)) return
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if (isLeaseInvalidError(err)) {
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await rejoinAfterLeaseInvalid()
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return
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}
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// TLS/CORS/403：换 auth_key 没用，禁止刷 play-url
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if (isFatalPlayMediaError(err)) {
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markPlayFatal(
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Number(err?.code) === 403
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? '播放鉴权失败（403），请检查签名或播放域名配置'
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: '播放域名 HTTPS 不可用（TLS/证书异常），请检查阿里云播放域名证书'
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)
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return
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}
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// 启动窗口耗尽后的 HlsError（含持续 404）视为不可恢复
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if (err?.name === 'HlsError') {
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markPlayFatal(err?.message || '播放失败')
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return
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}
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if (live.playRetryCount >= PLAY_RETRY_MAX) {
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markPlayFatal(err?.message || '播放失败')
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return
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}
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live.playRetryCount += 1
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try {
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await refreshPlayURL({ fromRetry: true })
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} catch (e) {
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if (disposed) return
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if (isLeaseInvalidError(e)) {
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await rejoinAfterLeaseInvalid()
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return
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}
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if (isFatalPlayMediaError(e) || e?.name === 'HlsError' || live.playRetryCount >= PLAY_RETRY_MAX) {
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markPlayFatal(
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isFatalPlayMediaError(e)
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? (Number(e?.code) === 403
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? '播放鉴权失败（403），请检查签名或播放域名配置'
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: '播放域名 HTTPS 不可用（TLS/证书异常），请检查阿里云播放域名证书')
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: (e?.message || err?.message || '播放失败')
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)
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return
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}
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await onPlayError(e)
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}
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}
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async function closeLive(sendRequest = true) {
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// 使 in-flight openLive/join 失效；迟到的 join 结果会走 orphan leave
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openGen += 1
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const session = live.session
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const dockId = live.dockId
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resetLocal()
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if (sendRequest && session && dockId) {
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await safeLeave(dockId, session.id)
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}
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}
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/** 页面卸载/刷新：立即失效 generation，并用 keepalive 释放租约 */
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function dispose({ keepalive = false } = {}) {
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if (disposed) return
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disposed = true
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openGen += 1
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const session = live.session
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const dockId = live.dockId
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resetLocal()
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if (session && dockId) {
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if (keepalive) leaveLiveKeepalive(dockId, session.id)
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else safeLeave(dockId, session.id)
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}
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}
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async function stopLiveStream() {
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if (disposed || !live.session || !live.dockId || live.opening) return
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const dockId = live.dockId
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const session = live.session
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const ok = await ui.confirm(
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'确认停止直播？',
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'停止后所有正在观看的用户都会失去画面。',
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['确认停止推流', '影响当前所有观看者']
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)
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if (!ok) return
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// confirm 期间可能已关闭/切换会话，避免 stop 错 dock 或 wipe 新会话
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if (disposed || !live.session || live.dockId !== dockId || live.session.id !== session.id) return
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try {
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await stopLive(dockId)
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openGen += 1
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resetLocal()
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await safeLeave(dockId, session.id)
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ui.toast('直播已停止')
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} catch (e) {
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ui.toast(e.message || '停止直播失败')
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}
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}
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return {
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live,
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livePhaseText,
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canFullscreenLive,
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toggleLive,
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fullscreenLive,
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openLive,
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closeLive,
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dispose,
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stopLiveStream,
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onPlayError,
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}
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}
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