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<?php $html = <<<HTML <html> <head> <script type='text/javascript' src='/wp-includes/js/jquery/jquery.js?ver=1.8.3'></script> <script type='text/javascript' src='https://www.example.com/leave-this-alone'></script> <script language="JavaScript"> window.moveTo(0,0); window.resizeTo(screen.width,screen.height); </script> </head> </html> HTML; $workingUrl = 'https://www.example.com'; $dom = new DOMDocument; $dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $xpath = new DOMXPath($dom); foreach ($xpath->query("//script[@src and not(starts-with(@src,'http'))]") as $node) { $node->setAttribute('src', $workingUrl); } echo $dom->saveHTML();
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 17, Position 2 = 23
Branch analysis from position: 17
2 jumps found. (Code = 78) Position 1 = 18, Position 2 = 23
Branch analysis from position: 18
1 jumps found. (Code = 42) Position 1 = 17
Branch analysis from position: 17
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
filename:       /in/ebpGj
function name:  (null)
number of ops:  28
compiled vars:  !0 = $html, !1 = $workingUrl, !2 = $dom, !3 = $xpath, !4 = $node
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%3Chtml%3E%0A%3Chead%3E%0A%3Cscript+type%3D%27text%2Fjavascript%27+src%3D%27%2Fwp-includes%2Fjs%2Fjquery%2Fjquery.js%3Fver%3D1.8.3%27%3E%3C%2Fscript%3E%0A%3Cscript+type%3D%27text%2Fjavascript%27+src%3D%27https%3A%2F%2Fwww.example.com%2Fleave-this-alone%27%3E%3C%2Fscript%3E%0A%3Cscript+language%3D%22JavaScript%22%3E%0Awindow.moveTo%280%2C0%29%3B%0Awindow.resizeTo%28screen.width%2Cscreen.height%29%3B%0A%3C%2Fscript%3E%0A%3C%2Fhead%3E%0A%3C%2Fhtml%3E'
   15     1        ASSIGN                                                   !1, 'https%3A%2F%2Fwww.example.com'
   17     2        NEW                                              $7      'DOMDocument'
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !2, $7
   18     5        INIT_METHOD_CALL                                         !2, 'loadHTML'
          6        SEND_VAR_EX                                              !0
          7        SEND_VAL_EX                                              8196
          8        DO_FCALL                                      0          
   19     9        NEW                                              $11     'DOMXPath'
         10        SEND_VAR_EX                                              !2
         11        DO_FCALL                                      0          
         12        ASSIGN                                                   !3, $11
   20    13        INIT_METHOD_CALL                                         !3, 'query'
         14        SEND_VAL_EX                                              '%2F%2Fscript%5B%40src+and+not%28starts-with%28%40src%2C%27http%27%29%29%5D'
         15        DO_FCALL                                      0  $14     
         16      > FE_RESET_R                                       $15     $14, ->23
         17    > > FE_FETCH_R                                               $15, !4, ->23
   21    18    >   INIT_METHOD_CALL                                         !4, 'setAttribute'
         19        SEND_VAL_EX                                              'src'
         20        SEND_VAR_EX                                              !1
         21        DO_FCALL                                      0          
   20    22      > JMP                                                      ->17
         23    >   FE_FREE                                                  $15
   23    24        INIT_METHOD_CALL                                         !2, 'saveHTML'
         25        DO_FCALL                                      0  $17     
         26        ECHO                                                     $17
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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