197 lines
15 KiB
JavaScript
197 lines
15 KiB
JavaScript
const API_BASE='http://127.0.0.1:3300/api/collector/product-page'
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async function capture(tabId){
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const result=await chrome.scripting.executeScript({target:{tabId},func:()=>{
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const clean=value=>String(value||'').replace(/\s+/g,' ').trim()
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const uniq=rows=>[...new Set(rows.filter(Boolean))]
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const bodyText=document.body?.innerText||''
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const lines=bodyText.split(/\n+/).map(clean).filter(Boolean)
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const url=location.href
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const itemId=url.match(/[?&]id=(\d+)/)?.[1]||url.match(/\/(\d+)\.html/)?.[1]||''
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const skuId=url.match(/[?&]skuId=(\d+)/)?.[1]||''
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const platform=/tmall/i.test(location.hostname)?'tmall':/taobao/i.test(location.hostname)?'taobao':/jd\.com/i.test(location.hostname)?'jd':'unknown'
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const title=clean(document.querySelector('h1')?.textContent||document.querySelector('meta[property="og:title"]')?.content||document.title)
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const readAfter=patterns=>{const row=lines.find(line=>patterns.some(pattern=>pattern.test(line)));if(!row)return'';const parts=row.split(/[：:]/);return clean(parts.length>1?parts.slice(1).join(':'):row)}
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const shop=clean(document.querySelector('[class*="shop-name"],[class*="shopName"],[class*="seller-name"],[class*="sellerName"]')?.textContent)||readAfter([/^店铺/,/^店名/,/^卖家/])
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const priceText=clean(document.querySelector('[class*="promotionPrice"],[class*="salePrice"],[class*="price"]')?.textContent||'')
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const currentPrice=clean(priceText.match(/[¥￥]?\s*(\d+(?:\.\d+)?)/)?.[1]||bodyText.match(/(?:券后|到手价|活动价|价格)\s*[¥￥]?\s*(\d+(?:\.\d+)?)/)?.[1]||'')
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const originalPrice=clean(bodyText.match(/(?:原价|划线价|优惠前)\s*[¥￥]?\s*(\d+(?:\.\d+)?)/)?.[1]||'')
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const sold=clean(bodyText.match(/(?:已售|付款|销量|累计销量)\s*([0-9.万wW+]+)/)?.[1]||'')
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const publicReviewCount=clean(bodyText.match(/(?:累计评价|全部评价|商品评价|评论)\s*([0-9.万wW+]+)/)?.[1]||'')
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const ranking=clean(bodyText.match(/(?:热销榜|排行榜|榜第)\s*第?\s*([0-9]+)\s*名/)?.[0]||'')
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const meta={}
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document.querySelectorAll('meta').forEach(el=>{const key=el.getAttribute('property')||el.getAttribute('name');const value=el.getAttribute('content');if(key&&value&&!/cookie|authorization|token|password/i.test(key))meta[key]=value})
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const jsonld=[]
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document.querySelectorAll('script[type="application/ld+json"]').forEach(el=>{try{jsonld.push(JSON.parse(el.textContent||'null'))}catch{}})
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const badImage=/avatar|icon|logo|sprite|loading|placeholder|qrcode|qr-code|emoji|badge/i
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const imageRows=[...document.images].map(img=>({
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url:img.currentSrc||img.src,
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width:img.naturalWidth||img.width||0,
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height:img.naturalHeight||img.height||0,
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alt:clean(img.alt),
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context:clean(`${img.alt||''} ${img.closest('[class],[id]')?.className||''} ${img.closest('[class],[id]')?.id||''}`)
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})).filter(row=>/^https?:\/\//.test(row.url)&&!badImage.test(`${row.url} ${row.context}`)&&(row.width>=120||row.height>=120))
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const uniqueImages=rows=>{const seen=new Set();return rows.filter(row=>{const key=row.url.replace(/_[0-9]+x[0-9]+[^/]*$/,'');if(seen.has(key))return false;seen.add(key);return true})}
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const reviewRows=uniqueImages(imageRows.filter(row=>/review|comment|rate|evaluate|buyer|show|评价|评论|买家秀|晒单/i.test(row.context)))
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const detailRows=uniqueImages(imageRows.filter(row=>/detail|description|desc|richtext|module|详情|图文|描述/i.test(row.context)&&!reviewRows.some(x=>x.url===row.url)))
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const skuRows=uniqueImages(imageRows.filter(row=>/sku|prop|variant|option|规格|颜色|尺码|型号|口味/i.test(row.context)&&!reviewRows.some(x=>x.url===row.url)&&!detailRows.some(x=>x.url===row.url)))
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const mainRows=uniqueImages(imageRows.filter(row=>/gallery|thumb|preview|main|swiper|carousel|主图|轮播/i.test(row.context)&&!reviewRows.some(x=>x.url===row.url)&&!detailRows.some(x=>x.url===row.url))).slice(0,30)
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const allImages=uniqueImages(imageRows)
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const blockedAttribute=/优惠|券|立减|包邮|发货|送达|价保|退货|客服|店铺|销量|付款|评论|评价|问答/
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const attributes=[]
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const attributeSeen=new Set()
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const addAttribute=(name,value,source='dom')=>{name=clean(name).replace(/[：:]$/,'');value=clean(value);if(!name||!value||name.length>36||value.length>600||blockedAttribute.test(name))return;const key=`${name}\u0000${value}`;if(attributeSeen.has(key))return;attributeSeen.add(key);attributes.push({name,value,source})}
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document.querySelectorAll('table tr,[class*="attribute"] li,[class*="Attribute"] li,[class*="parameter"] li,[class*="Parameter"] li,[class*="property"] li,[class*="Property"] li,[class*="attr"] li').forEach(el=>{
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const cells=[...el.querySelectorAll(':scope > th,:scope > td,:scope > span,:scope > div')].map(x=>clean(x.textContent)).filter(Boolean)
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if(cells.length>=2)addAttribute(cells[0],cells.slice(1).join(' '),'attribute_dom')
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else{const text=clean(el.textContent);const match=text.match(/^([^：:]{1,36})[：:]\s*(.{1,600})$/);if(match)addAttribute(match[1],match[2],'attribute_dom')}
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})
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lines.forEach(line=>{const match=line.match(/^([^：:]{1,30})[：:]\s*(.{1,400})$/);if(match)addAttribute(match[1],match[2],'page_text')})
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const breadcrumb=uniq([...document.querySelectorAll('[class*="breadcrumb"] a,[class*="crumb"] a,[class*="category"] a')].map(el=>clean(el.textContent))).filter(x=>x.length<=40).slice(0,12)
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const categoryCandidates=uniq([...breadcrumb,...attributes.filter(x=>/类目|分类|品类|产品类型|商品类型/.test(x.name)).map(x=>x.value)]).slice(0,20)
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const variants=[]
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const variantSeen=new Set()
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const addVariant=row=>{const name=clean(row.name);if(!name||name.length>180)return;const key=`${clean(row.group)}\u0000${name}`;if(variantSeen.has(key))return;variantSeen.add(key);variants.push({...row,name,group:clean(row.group),source:row.source||'sku_dom'})}
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document.querySelectorAll('[class*="sku"],[class*="Sku"],[class*="variant"],[class*="Variant"],[class*="prop"] ,[class*="Prop"]').forEach(container=>{
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const group=clean(container.querySelector('[class*="title"],[class*="label"],[class*="name"]')?.textContent||'')
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container.querySelectorAll('button,[role="option"],li,[class*="item"],[class*="Item"]').forEach(el=>{
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const name=clean(el.getAttribute('title')||el.getAttribute('aria-label')||el.textContent)
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const image=el.querySelector('img')?.currentSrc||el.querySelector('img')?.src||''
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addVariant({group,name,image,selected:el.getAttribute('aria-selected')==='true'||/selected|active|current/i.test(el.className),disabled:el.getAttribute('aria-disabled')==='true'||el.hasAttribute('disabled')})
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})
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})
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const variantKeywords=/(颜色|色号|尺码|尺寸|规格|型号|版本|配置|容量|净含量|口味|香型|套装|套餐|款式|适用|包装|重量|数量|码数|度数|功率|内存|存储)/
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lines.filter(line=>variantKeywords.test(line)&&line.length<=500).slice(0,180).forEach(line=>line.split(/[,，]/).map(clean).filter(Boolean).forEach(name=>addVariant({group:'',name,source:'page_text'})))
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const promotionPattern=/(优惠|券|立减|满减|包邮|免运费|价保|退货|退款|七天无理由|预计.*发货|送达|大促|活动|限时|到手价|店铺优惠|赠品|买一送一)/i
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const promotions=uniq(lines.filter(line=>promotionPattern.test(line)&&line.length<=120)).slice(0,100).map(text=>({text,source:'page_text'}))
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const questions=[]
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document.querySelectorAll('[class*="question"],[class*="Question"],[class*="ask"],[class*="Ask"]').forEach((el,index)=>{
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const text=clean(el.innerText);if(!text)return
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const question=clean(el.querySelector('[class*="question"],[class*="title"]')?.textContent||text.match(/(.{2,160}[？?])/)?.[1])
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const answer=clean(el.querySelector('[class*="answer"]')?.textContent||'')
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if(question)questions.push({id:`question-${index+1}`,question,answer,source:'question_dom'})
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})
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const reviewSelectors=['[class*="review-item"]','[class*="comment-item"]','[class*="rate-item"]','[class*="ReviewItem"]','[class*="CommentItem"]','[data-testid*="review"]']
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const reviews=[...document.querySelectorAll(reviewSelectors.join(','))].slice(0,500).map((el,index)=>{
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const content=clean(el.innerText);if(content.length<6||content.length>3000)return null
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const images=uniq([...el.querySelectorAll('img')].map(img=>img.currentSrc||img.src).filter(src=>/^https?:\/\//.test(src)&&!badImage.test(src)))
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const date=content.match(/20\d{2}[-/.年]\d{1,2}[-/.月]\d{1,2}日?(?:\s+\d{1,2}:\d{2})?/)?.[0]||''
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const appendContent=clean(content.match(/(?:追评|追加评价)[：:\s]*(.{2,800})/)?.[1]||'')
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const sku=clean(el.querySelector('[class*="sku"],[class*="spec"],[class*="attr"]')?.textContent||'')
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const merchantReply=clean(el.querySelector('[class*="reply"],[class*="seller"]')?.textContent||'')
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const rating=Number(el.getAttribute('data-score')||el.getAttribute('data-rating')||el.querySelector('[data-score]')?.getAttribute('data-score'))||null
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return{id:el.getAttribute('data-id')||el.id||`review-${index+1}`,content,appendContent,date,rating,sku,hasImage:images.length>0,images,merchantReply,source:'review_dom'}
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}).filter(Boolean)
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const collection={
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publicReviewCount,
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reviewActual:reviews.length,
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questionActual:questions.length,
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reviewCompleteness:reviews.length?'visible_content_collected':'no_visible_review_nodes',
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reviewStopReason:reviews.length?'visible_dom_exhausted':'reviews_not_open_or_platform_folded',
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capturedAt:new Date().toISOString(),
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collectorVersion:chrome.runtime.getManifest().version,
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platform
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}
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const structured={
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meta:{...collection,url,imageClassificationVersion:'strict-v1',collectorVersion:'9.2.2'},
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category:{candidates:categoryCandidates,breadcrumb},
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product:{itemId,skuId,title,shop,brand:attributes.find(item=>/^品牌$/.test(item.name))?.value||'',url,platform},
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sales:{currentPrice,originalPrice,sold,ranking},
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promotions,attributes,sku:variants,questions,reviews,
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images:(()=>{
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const main=mainRows, detail=detailRows.slice(0,120), sku=skuRows.slice(0,120), buyerShow=reviewRows.slice(0,160);
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const provenance=[
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...main.map(url=>({url,group:'main',source:'dom_main_gallery'})),
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...detail.map(url=>({url,group:'detail',source:'dom_product_description'})),
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...sku.map(url=>({url,group:'sku',source:'dom_sku_selector'})),
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...buyerShow.map(url=>({url,group:'buyerShow',source:'review_record'}))
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];
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return {all:allImages,main,detail,sku,buyerShow,provenance,classification:{version:'strict-v1',classifiedCount:allImages.length,groupsAreDisjoint:true}};
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})(),
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collection,pageText:bodyText
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}
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return{structured,...structured,jsonld,meta}
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}})
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return result?.[0]?.result
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}
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const lastCaptured=new Map()
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function isProductUrl(url=''){return /^https:\/\/(?:item\.jd\.com\/\d+\.html|item\.taobao\.com\/item\.htm|detail\.tmall\.com\/item\.htm)/i.test(url)}
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async function reportAuthState(){
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try{
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const [taobaoCookies,jdCookies]=await Promise.all([chrome.cookies.getAll({domain:'.taobao.com'}),chrome.cookies.getAll({domain:'.jd.com'})])
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const response=await fetch(`${API_BASE}/auth-heartbeat`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({version:chrome.runtime.getManifest().version,platforms:{taobao:{loggedIn:taobaoCookies.some(cookie=>/tracknick|cookie2|_tb_token_|sgcookie/i.test(cookie.name))},jd:{loggedIn:jdCookies.some(cookie=>/pin|thor|unick/i.test(cookie.name))}}})})
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return response.ok
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}catch(error){console.error('[三笙登录态上报]',error);return false}
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}
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async function captureAndSend(tab,{force=false}={}){
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if(!tab?.id||!isProductUrl(tab.url))return
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const key=`${tab.id}:${tab.url}`
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if(!force&&Date.now()-(lastCaptured.get(key)||0)<30_000)return
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lastCaptured.set(key,Date.now())
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try{
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await chrome.action.setBadgeText({tabId:tab.id,text:'采'})
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await chrome.action.setBadgeBackgroundColor({tabId:tab.id,color:'#2563EB'})
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const payload=await capture(tab.id)
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const response=await fetch(`${API_BASE}/capture`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)})
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if(!response.ok)throw new Error(await response.text())
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await chrome.action.setBadgeText({tabId:tab.id,text:'OK'})
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await chrome.action.setBadgeBackgroundColor({tabId:tab.id,color:'#155C4E'})
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setTimeout(()=>chrome.action.setBadgeText({tabId:tab.id,text:''}),2500)
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}catch(error){
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lastCaptured.delete(key)
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await chrome.action.setBadgeText({tabId:tab.id,text:'!'})
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await chrome.action.setBadgeBackgroundColor({tabId:tab.id,color:'#A54F43'})
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console.error('[三笙商品采集]',error)
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}
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}
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chrome.tabs.onUpdated.addListener((tabId,changeInfo,tab)=>{if(changeInfo.status==='complete'&&isProductUrl(tab.url))setTimeout(()=>captureAndSend({...tab,id:tabId}),2500)})
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chrome.tabs.onRemoved.addListener(tabId=>{for(const key of lastCaptured.keys())if(key.startsWith(`${tabId}:`))lastCaptured.delete(key)})
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chrome.action.onClicked.addListener(tab=>captureAndSend(tab,{force:true}))
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let queueBusy=false
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let queueBackoffMs=1000
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async function processCaptureQueue(){
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if(queueBusy)return
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queueBusy=true
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let tab
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try{
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const response=await fetch(`${API_BASE}/next`)
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if(response.status===204){queueBackoffMs=Math.min(queueBackoffMs*1.5,15_000);return}
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if(!response.ok)throw new Error(`任务队列 HTTP ${response.status}`)
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const task=await response.json()
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tab=await chrome.tabs.create({url:task.url,active:false})
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await new Promise((resolve,reject)=>{
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const timeout=setTimeout(()=>{chrome.tabs.onUpdated.removeListener(listener);reject(new Error('商品页加载超时'))},45_000)
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const listener=(tabId,changeInfo,updated)=>{if(tabId===tab.id&&changeInfo.status==='complete'){clearTimeout(timeout);chrome.tabs.onUpdated.removeListener(listener);resolve(updated)}}
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chrome.tabs.onUpdated.addListener(listener)
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})
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await new Promise(resolve=>setTimeout(resolve,3500))
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await captureAndSend(await chrome.tabs.get(tab.id),{force:true})
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queueBackoffMs=1000
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}catch(error){console.error('[三笙采集队列]',error);queueBackoffMs=Math.min(queueBackoffMs*2,30_000)}
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finally{if(tab?.id)await chrome.tabs.remove(tab.id).catch(()=>{});queueBusy=false;setTimeout(processCaptureQueue,queueBackoffMs)}
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}
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chrome.runtime.onInstalled.addListener(()=>{chrome.alarms.create('sansong-product-queue',{periodInMinutes:.5});processCaptureQueue()})
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chrome.runtime.onStartup.addListener(()=>{chrome.alarms.create('sansong-product-queue',{periodInMinutes:.5});processCaptureQueue()})
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chrome.alarms.onAlarm.addListener(alarm=>{if(alarm.name==='sansong-product-queue')processCaptureQueue();if(alarm.name==='sansong-auth-heartbeat')reportAuthState()})
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chrome.alarms.create('sansong-product-queue',{periodInMinutes:.5})
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chrome.alarms.create('sansong-auth-heartbeat',{periodInMinutes:1})
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processCaptureQueue()
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reportAuthState()
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chrome.runtime.onMessage.addListener((message,_sender,sendResponse)=>{if(message?.type!=='SANSONG_COLLECTOR_WAKE')return;reportAuthState().then(connected=>sendResponse({connected})).catch(()=>sendResponse({connected:false}));return true})
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chrome.cookies.onChanged.addListener(change=>{if(/(?:^|\.)(?:taobao|tmall|jd)\.com$/i.test(change.cookie.domain))setTimeout(reportAuthState,300)})
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