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Révision 66b5cbf6

Ajouté par Assos Assos il y a presque 10 ans

Weekly update of contrib modules

Voir les différences:

drupal7/sites/all/modules/captcha/image_captcha/image_captcha.user.inc
29 29 

  		




  30
  30
  
    
  // Only generate captcha if code exists in the session.


  		




  31
  31
  
    
  if ($code !== FALSE) {


  		




  
  32
  
    
    // Seed the random generators used for image CAPTCHA distortion based on session and code


  		




  
  33
  
    
    // to counter attacks that re-request the same challenge and pick the simplest image one or combine info.


  		




  
  34
  
    
    $seed = hexdec(substr(md5($captcha_sid . $code), 0, 8));


  		




  
  35
  
    
    srand($seed);


  		




  
  36
  
    
    mt_srand($seed);


  		




  32
  37
  
    
    // generate the image


  		




  33
  38
  
    
    $image = @_image_captcha_generate_image($code);


  		




  34
  39
  
    
    // check of generation was successful


  		




  ......




  124
  129
  
    
  $distortion_amplitude = .25 * $font_size * variable_get('image_captcha_distortion_amplitude', 0) / 10.0;


  		




  125
  130
  
    
  if ($distortion_amplitude > 1) {


  		




  126
  131
  
    
    // distortion parameters


  		




  127
  
  
    
    $wavelength_xr = (2+3*lcg_value())*$font_size;


  		




  128
  
  
    
    $wavelength_yr = (2+3*lcg_value())*$font_size;


  		




  
  132
  
    
    $wavelength_xr = (2 + 3 * mt_rand(0, 1000) / 1000) * $font_size;


  		




  
  133
  
    
    $wavelength_yr = (2 + 3 * mt_rand(0, 1000) / 1000) * $font_size;


  		




  129
  134
  
    
    $freq_xr = 2 * 3.141592 / $wavelength_xr;


  		




  130
  135
  
    
    $freq_yr = 2 * 3.141592 / $wavelength_yr;


  		




  131
  
  
    
    $wavelength_xt = (2+3*lcg_value())*$font_size;


  		




  132
  
  
    
    $wavelength_yt = (2+3*lcg_value())*$font_size;


  		




  
  136
  
    
    $wavelength_xt = (2 + 3 * mt_rand(0, 1000) / 1000) * $font_size;


  		




  
  137
  
    
    $wavelength_yt = (2 + 3 * mt_rand(0, 1000) / 1000) * $font_size;


  		




  133
  138
  
    
    $freq_xt = 2 * 3.141592 / $wavelength_xt;


  		




  134
  139
  
    
    $freq_yt = 2 * 3.141592 / $wavelength_yt;


  		




  135
  140
  
    

  		












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