The Beatport Proxy By The_Zhu [WS] Beatport.com by stevehero [Release, Single Track & Artwork tagging] - #1256 by The_Zhu would be an elegant solution, but... it connects only to Beatport. I suppose one could politely ask The_Zhu to make a proxy for Traxsource (or even better a proxy that covers both beatport and Traxsource. I tried editing the source and lauching the python script but with little success 
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Edit: I Asked The zhu directly in the topic where he published his proxy [WS] Beatport.com by stevehero [Release, Single Track & Artwork tagging] - #1276 by RxB . We'll see if he replies