66 lines
1.2 KiB
JavaScript
66 lines
1.2 KiB
JavaScript
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"use strict";
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const Dragonfly = global.Dragonfly;
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const cl = global.botanLoader;
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class PageCache
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{
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constructor()
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{
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this.cache = { };
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setInterval( () => {
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var d = new Date().getTime();
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for( var i in this.cache )
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{
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var c = this.cache[ i ];
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if( c.ttl < d ) delete this.cache[ i ];
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}
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}, 30000 );
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}
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store( req, res, data, ttl )
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{
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if( !global.pagecache ) return;
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var key = req.url;
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var expires = new Date().getTime() + 1000 * ttl;
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this.cache[ key ] = {
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data: data
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, headers: {
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"Content-Length": res.headers[ "Content-Length" ]
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, "Content-Type": res.headers[ "Content-Type" ]
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, "X-Cache-Expires": new Date( expires )
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}
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, ttl: expires
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};
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Dragonfly.Debug( "StoreCache: \"" + key + "\", expire " + new Date( expires ) );
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}
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process( req, res )
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{
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var url = req.url;
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if( url in this.cache )
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{
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Dragonfly.Info(
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"[C] "
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+ ( req.headers[ "x-forwarded-for" ] || req.connection.remoteAddress ) + " "
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+ req.method + ": " + encodeURI( url )
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+ " - " + req.headers["user-agent"]
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, Dragonfly.Visibility.VISIBLE
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);
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var c = this.cache[ url ];
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res.headers = c.headers;
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res.write( c.data );
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res.end();
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return true;
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}
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return false;
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}
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}
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module.exports = PageCache;
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