corrade-nucleus-nucleons – Blame information for rev 4
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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | office | 1 | // |
| 2 | // Unpacker warning: be careful when using myobfuscate.com for your projects: |
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| 3 | // scripts obfuscated by the free online version call back home. |
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| 4 | // |
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| 5 | |||
| 6 | // |
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| 7 | // Unpacker for Dean Edward's p.a.c.k.e.r, a part of javascript beautifier |
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| 8 | // written by Einar Lielmanis <einar@jsbeautifier.org> |
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| 9 | // |
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| 10 | // Coincidentally, it can defeat a couple of other eval-based compressors. |
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| 11 | // |
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| 12 | // usage: |
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| 13 | // |
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| 14 | // if (P_A_C_K_E_R.detect(some_string)) { |
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| 15 | // var unpacked = P_A_C_K_E_R.unpack(some_string); |
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| 16 | // } |
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| 17 | // |
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| 18 | // |
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| 19 | |||
| 20 | var P_A_C_K_E_R = { |
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| 21 | detect: function (str) { |
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| 22 | return P_A_C_K_E_R._starts_with(str.toLowerCase().replace(/ +/g, ''), 'eval(function(') || |
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| 23 | P_A_C_K_E_R._starts_with(str.toLowerCase().replace(/ +/g, ''), 'eval((function(') ; |
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| 24 | }, |
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| 25 | |||
| 26 | unpack: function (str) { |
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| 27 | var unpacked_source = ''; |
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| 28 | if (P_A_C_K_E_R.detect(str)) { |
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| 29 | try { |
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| 30 | eval('unpacked_source = ' + str.substring(4) + ';') |
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| 31 | if (typeof unpacked_source == 'string' && unpacked_source) { |
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| 32 | str = unpacked_source; |
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| 33 | } |
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| 34 | } catch (error) { |
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| 35 | // well, it failed. we'll just return the original, instead of crashing on user. |
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| 36 | } |
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| 37 | } |
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| 38 | return str; |
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| 39 | }, |
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| 40 | |||
| 41 | _starts_with: function (str, what) { |
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| 42 | return str.substr(0, what.length) === what; |
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| 43 | }, |
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| 44 | |||
| 45 | run_tests: function (sanity_test) { |
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| 46 | var t = sanity_test || new SanityTest(); |
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| 47 | t.test_function(P_A_C_K_E_R.detect, "P_A_C_K_E_R.detect"); |
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| 48 | t.expect('', false); |
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| 49 | t.expect('var a = b', false); |
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| 50 | t.expect('eval(function(p,a,c,k,e,r', true); |
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| 51 | t.expect('eval ( function(p, a, c, k, e, r', true); |
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| 52 | |||
| 53 | t.test_function(P_A_C_K_E_R.unpack, 'P_A_C_K_E_R.unpack'); |
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| 54 | t.expect("eval(function(p,a,c,k,e,r){e=String;if(!''.replace(/^/,String)){while(c--)r[c]=k[c]||c;k=[function(e){return r[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}('0 2=1',3,3,'var||a'.split('|'),0,{}))", |
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| 55 | 'var a=1'); |
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| 56 | |||
| 57 | var starts_with_a = function(what) { return P_A_C_K_E_R._starts_with(what, 'a'); } |
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| 58 | t.test_function(starts_with_a, "P_A_C_K_E_R._starts_with(?, a)"); |
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| 59 | t.expect('abc', true); |
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| 60 | t.expect('bcd', false); |
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| 61 | t.expect('a', true); |
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| 62 | t.expect('', false); |
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| 63 | return t; |
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| 64 | } |
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| 65 | } |