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node_modules/js-beautify/js/lib/unpackers/myobfuscate_unpacker.js

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+/*
+
+  The MIT License (MIT)
+
+  Copyright (c) 2007-2018 Einar Lielmanis, Liam Newman, and contributors.
+
+  Permission is hereby granted, free of charge, to any person
+  obtaining a copy of this software and associated documentation files
+  (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge,
+  publish, distribute, sublicense, and/or sell copies of the Software,
+  and to permit persons to whom the Software is furnished to do so,
+  subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+
+//
+// simple unpacker/deobfuscator for scripts messed up with myobfuscate.com
+// You really don't want to obfuscate your scripts there: they're tracking
+// your unpackings, your script gets turned into something like this,
+// as of 2011-04-25:
+/*
+
+    var _escape = 'your_script_escaped';
+    var _111 = document.createElement('script');
+    _111.src = 'http://api.www.myobfuscate.com/?getsrc=ok' +
+        '&ref=' + encodeURIComponent(document.referrer) +
+        '&url=' + encodeURIComponent(document.URL);
+    var 000 = document.getElementsByTagName('head')[0];
+    000.appendChild(_111);
+    document.write(unescape(_escape));
+
+*/
+//
+// written by Einar Lielmanis <einar@beautifier.io>
+//
+// usage:
+//
+// if (MyObfuscate.detect(some_string)) {
+//     var unpacked = MyObfuscate.unpack(some_string);
+// }
+//
+//
+
+/*jshint strict:false */
+
+var MyObfuscate = {
+  detect: function(str) {
+    if (/^var _?[0O1lI]{3}\=('|\[).*\)\)\);/.test(str)) {
+      return true;
+    }
+    if (/^function _?[0O1lI]{3}\(_/.test(str) && /eval\(/.test(str)) {
+      return true;
+    }
+    return false;
+  },
+
+  unpack: function(str) {
+    if (MyObfuscate.detect(str)) {
+      var __eval = eval;
+      try {
+        eval = function(unpacked) { // jshint ignore:line
+          if (MyObfuscate.starts_with(unpacked, 'var _escape')) {
+            // fetch the urlencoded stuff from the script,
+            var matches = /'([^']*)'/.exec(unpacked);
+            var unescaped = unescape(matches[1]);
+            if (MyObfuscate.starts_with(unescaped, '<script>')) {
+              unescaped = unescaped.substr(8, unescaped.length - 8);
+            }
+            if (MyObfuscate.ends_with(unescaped, '</script>')) {
+              unescaped = unescaped.substr(0, unescaped.length - 9);
+            }
+            unpacked = unescaped;
+          }
+          // throw to terminate the script
+          unpacked = "// Unpacker warning: be careful when using myobfuscate.com for your projects:\n" +
+            "// scripts obfuscated by the free online version may call back home.\n" +
+            "\n//\n" + unpacked;
+          throw unpacked;
+        }; // jshint ignore:line
+        __eval(str); // should throw
+      } catch (e) {
+        // well, it failed. we'll just return the original, instead of crashing on user.
+        if (typeof e === "string") {
+          str = e;
+        }
+      }
+      eval = __eval; // jshint ignore:line
+    }
+    return str;
+  },
+
+  starts_with: function(str, what) {
+    return str.substr(0, what.length) === what;
+  },
+
+  ends_with: function(str, what) {
+    return str.substr(str.length - what.length, what.length) === what;
+  },
+
+  run_tests: function(sanity_test) {
+    var t = sanity_test || new SanityTest();
+
+    return t;
+  }
+
+
+};