mirror of
https://github.com/beautifier/js-beautify.git
synced 2025-03-04 19:18:21 +00:00
e2265477ef
Added automatic detection of escaped bookmarklets — they can be freely pasted now; also slightly cleaned and organized the filter (Edward's packer, Javascriptobfuscator, and bookmarklet unpacking) code.
57 lines
1.9 KiB
JavaScript
57 lines
1.9 KiB
JavaScript
//
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// Unpacker for Dean Edward's p.a.c.k.e.r, a part of javascript beautifier
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// written by Einar Lielmanis <einar@jsbeautifier.org>
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//
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// usage:
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//
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// if (P_A_C_K_E_R.detect(some_string)) {
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// var unpacked = P_A_C_K_E_R.unpack(some_string);
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// }
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//
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//
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var P_A_C_K_E_R = {
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detect: function (str) {
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return P_A_C_K_E_R._starts_with(str.toLowerCase().replace(/ +/g, ''), 'eval(function(p,a,c,k');
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},
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unpack: function (str) {
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var unpacked_source = '';
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if (P_A_C_K_E_R.detect(str)) {
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try {
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eval('unpacked_source = ' + str.substring(4) + ';')
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str = unpacked_source;
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} catch (error) {
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// well, it failed. we'll just return the original, instead of crashing on user.
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}
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}
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return str;
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},
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_starts_with: function (str, what) {
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return str.substr(0, what.length) === what;
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},
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run_tests: function (sanity_test) {
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var t = sanity_test || new SanityTest();
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t.test_function(P_A_C_K_E_R.detect, "P_A_C_K_E_R.detect");
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t.expect('', false);
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t.expect('var a = b', false);
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t.expect('eval(function(p,a,c,k,e,r', true);
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t.expect('eval ( function(p, a, c, k, e, r', true);
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t.test_function(P_A_C_K_E_R.unpack, 'P_A_C_K_E_R.unpack');
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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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'var a=1');
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var starts_with_a = function(what) { return P_A_C_K_E_R._starts_with(what, 'a'); }
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t.test_function(starts_with_a, "P_A_C_K_E_R._starts_with(?, a)");
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t.expect('abc', true);
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t.expect('bcd', false);
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t.expect('a', true);
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t.expect('', false);
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return t;
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}
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}
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