getMFAResponseForSite - rendering array as a captcha image

Question

I'm working with Yodlee MFAs, in this case, captcha, and I'm wondering how to render the image field from this JSON response:

{
   "isMessageAvailable":true,
   "fieldInfo":{
      "responseFieldType":"text",
      "imageFieldType":"image",
      "image":[
         66,
         77,
         58,
         116,
         0,
         0,
         0,
         0,
         0,
         0,
         54,
         0,
         0,
         0,
         40,
         0,
         0,
         0,
         -91,
         0,
         0,
         0,
         45,
         0,
         0,
         0,
         1,
         0,
         32,
         0,
         0,
         0,
         0,
         0,
         4,
         116,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -5,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -9,
         -9,
         -9,
         0,
         -1,
         -5,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -5,
         -1,
         0,
         -17,
         -17,
         -17,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -9,
         -13,
         -9,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -9,
         -9,
         -9,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -17,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0,
         -1,
         -1,
         -1,
         0
      ],
      "minimumLength":-1,
      "maximumLength":-1,
      "displayString":"Please enter the text shown in the image"
   },
   "timeOutTime":99900,
   "itemId":10014925,
   "retry":false
}

For more information, you can read the following links: Link1, Link2

I would appreciate any help since I asked a Yodlee representative and he directed me here.

score 0 · Answer 1 · answered Jun 24 '14 at 16:32

0

The CAPTCHA image is being returned in String which is byte array of image. You need to convert this string into byte array and then into image. You can do this by using JDK libraries i.e. no external libraries are required.

You can use these.

java.awt.image.BufferedImage;
java.io.BufferedReader;
java.io.ByteArrayInputStream;

answered Jun 24 '14 at 16:32

Apoorv Awasthi

1,397
1
12
20

How can I do this with PHP instead of Java? – Jun 24 '14 at 17:41
There are different easy ways available to do so. I would suggest you to google it. For reference I am adding few links which might help. 1. http://www.zoubi.me/blog/php-get-image-byte-array 2. http://stackoverflow.com/questions/12537856/converting-a-byte-array-into-an-image-using-php-and-html – Apoorv Awasthi Jun 24 '14 at 19:23

score 0 · Answer 2 · edited May 23 '17 at 12:29

0

For me this was a best solution:

$string = implode(array_map("chr", $image));

Here you can find different realizations: How can I convert array of bytes to a string in PHP?

edited May 23 '17 at 12:29

Community

1
1

answered Jul 30 '14 at 14:14

Dmitriy Paul

23
1
3

getMFAResponseForSite - rendering array as a captcha image

2 Answers2

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