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PHP Source format, 4 years 2 months old, and 833 hits.

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Paste Description for getCaptchaGoogleAudio.php

This php script gets 1000 CAPTCHA audio files from Google's Audio CAPTCHA system and saves them to the subfolder /googleaudio/. This is meant to get a sampling size for testing your CAPTCHA breaking algorithms.

getCaptchaGoogleAudio.php
Wednesday, March 12th, 2008 at 7:30:57am MDT 

  1. <?php
  2.         //This script pulls CAPTCHAs URL from $urlGoogleAudio, then gets the CAPTCHA and saves them to folder $saveGoogleAudio from the range $startSound to $endSound.
  3.         $urlGoogleAudio = "https://www.google.com/accounts/NewAccount?service=mail&continue=http%3A%2F%2Fmail.google.com%2Fmail%2Fe-11-10ba05aeaa8e9b701e5151437f9a44d3-64aeae753cc34f1c864f7edc97a046ccdc96987b&type=2";
  4.         $saveGoogleAudio = "googleaudio/";
  5.         $startSound = 0;
  6.         $endSound = 999;
  7.  
  8.         //Make carraige returns appear correctly in all browsers. (ideally)
  9.         echo "<PRE>";
  10.         //These two lines force the output to be constantly flushed and updated for the user. (ideally)
  11.         ob_implicit_flush(true);
  12.         ob_end_flush();
  13.         echo "Script Started.\n";
  14.  
  15.  
  16.         //Pull in the CAPTCHA image as a string with cURL, and save to a file. The curl extension must first be enabled in php.ini.
  17.         for ($i=$startSound;$i<=$endSound;$i++) {
  18.                 //First extract a unique URL for each CAPTCHA from the $urlGoogleAudio.
  19.                 $ch = curl_init();
  20.                 curl_setopt($ch, CURLOPT_URL, $urlGoogleAudio."&rand=".$i);
  21.                 curl_setopt($ch, CURLOPT_HEADER, 0);
  22.                 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  23.                 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
  24.                 //If you're having difficulties with SSL, this may need to be enabled.
  25.                 //curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
  26.                 $result = curl_exec($ch);
  27.                 //Enable this if you're having difficulties.
  28.                 //echo "Error is: ".curl_error($ch);
  29.                 curl_close($ch);
  30.  
  31.                 //Parse out the URL, and retrieve the CAPTCHA for it.
  32.                 $result = substr($result,strpos($result,"wavURL"));
  33.                 $resultArray = explode('"',$result);
  34.                 $ch = curl_init();
  35.                 curl_setopt($ch, CURLOPT_URL, str_replace('\75',"=",$resultArray[1]));
  36.                 curl_setopt($ch, CURLOPT_HEADER, 0);
  37.                 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  38.                 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
  39.                 //If you're having difficulties with SSL, this may need to be enabled.
  40.                 //curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
  41.                 $sound = curl_exec($ch);
  42.                 //Enable this if you're having difficulties.
  43.                 //echo "Error is: ".curl_error($ch);
  44.                 curl_close($ch);
  45.  
  46.                 //Save CAPTCHA to a file with the same name as $i.
  47.                 if(!is_dir($saveGoogleAudio)) mkdir($saveGoogleAudio);
  48.                 if(strlen($sound) > 146) {
  49.                         $fh = fopen($saveGoogleAudio.$i.".wav","w");
  50.                         fwrite($fh,$sound);
  51.                         fclose($fh);
  52.                 }
  53.                 else $i--;
  54.  
  55.                 //Don't allow it to timeout.
  56.                 set_time_limit(40);
  57.                 //Output occasional progress.
  58.                 if ($i%10 == 0) {
  59.                         echo $i." CAPTCHA captured.\n";
  60.                         flush();
  61.                 }
  62.         }
  63.  
  64.  
  65.         echo "Script Complete.";
  66.         //-maluc
  67. ?>

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