Reverse engineering a Javascript on twitter signup
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Twitter Account Registration
If you signup for a twitter account here: [login to view URL]
the javascript creates a form submit variable named "signup_ui_metrics"
It looks like:
signup_ui_metrics={"tt":32387,"v":2,"gts":1438124809690,"h":"49678c77","b":"98c6958a928f808498ced7b5cd9e81829792c6c4d99c9596d9d0df908f70656430362b626b642b2629627d4f6b7f737752555852726c7c796f2f2f307b4c4d000f064b5645495d5e47494141481e555e5f16191459487e55545b515b6a3025233721766823242568676e233e2b35213e3c2d1f37213968743f30317c73420f120914574803040548474e233e2e25253a295a313a3b5a5558352c2e2e28d2c0d2adc0c9caa5a4abe4fbe2fbbdebe6e2e6e1f1f4fbfef6feb4fff0f1bcb382cfd2cdd296c2d186cdc6c78e818ce1e0e2e5f58787e98680e68ae48ce28c8ff9efa6afa8e7eae5a6b9a9bfbea1e0abbcbdf08ef8f7a7a2b1abb1a8f2a9bba794c3d897969083cbca989f829e869dc182949f9c8290d4cd8c8b8f9ed0df8f8a697369702a77636a677f6f4563696b2d2a77737f67703a356b7a687e7973307c4f4d4d5160405653400b101918010c5c534357565a1b5e52515e524f1e070f0f78716e61372634222d27643c25293a27726b606662657a7536382c323b3c2a30124f0e020a0213060f0c48514e08004d5c531c12021c11160c1608550c111f0be6eef0eea6bfa4d0e1e7b9b9aea1ace1f1e7fbf4f5e1f9e5b6e9e8f4f8e8fdeb829b80e4c1c6cdc88a8588dcc5c3cac0c79fdedcd7d4dae4ccd6c8dadbd89c85b4b3b7a6e8e7b1aea6ada5bce2beabbca3b8bdbd87a1b9a5b9bebff9e6a9acaa85cdc0948d8b82889fc783858888968a94b5b0d1ce8184829d84"}
I need to know how the variables are calculated or generated.
If you do not use javascript it does not generate the variable.
So there must be a script that generates the variable signup_ui_metric.
Please reengineer the code and tell me how I can generate it.
Thanks
Following is the partial solution
Use Google Chrome
Right Click the form.
Inspect element
You will see hidden input tag containing JSON string as value.
No type of handshake/protocol following is done on front end . Twitter just assumes every user is evil , so they do not trust them , which in-fact is good considering the security loopholes it would create.
Most of the values you are looking for are arriving from that model.
About Myself : I have around 38 months of exp in JS , HTML and node.js
$30 USD v 1 dnevu
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5 freelancerjev je oddalo ponudbo s povprečno vrednostjo $30 USD za to delo
Hello, I have made a quick review of the twitter code and I understand your need. Please award and escrow the project so I can move forward to assess the origin of the values.
Regards,
Diego Prado Riestra