mirror of
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18 lines
1.0 KiB
JavaScript
18 lines
1.0 KiB
JavaScript
const C='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789',L=4,H={'Access-Control-Allow-Origin':'*'},r=_=>[...Array(L)].map(_=>C[Math.random()*C.length|0]).join(''),n=u=>{try{return new URL(u).href}catch(_){try{return new URL('https://'+u).href}catch(_){}}}
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export async function onRequest({request,env,next}){
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if(request.method==='OPTIONS')return new Response(null,{headers:{...H,'Access-Control-Allow-Methods':'POST','Access-Control-Allow-Headers':'Content-Type'}})
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const u=new URL(request.url)
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if(u.pathname==='/api/create'&&request.method==='POST'){
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try{
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let{url:t}=await request.json();t=n(t);if(!t)throw 0
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let s;do s=r();while(await env.EV.get(s))
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await env.EV.put(s,t)
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return new Response(JSON.stringify({slug:s,target:t,shortUrl:`${u.origin}/${s}`}),{headers:{'Content-Type':'application/json',...H}})
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}catch(_){return new Response('Invalid URL',{status:400,headers:H})}
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}
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const p=u.pathname.slice(1)
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if(p){const t=await env.EV.get(p);if(t)return Response.redirect(t,302)}
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return next()
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}
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