[Userscript] print balance of address - v0.4

[babo]

hello there

https://github.com/blackout314/greasemoney-btctalk_btcbalance/tree/master

automatic push a image of balance of address

i used this service http://btc-priceimg.herokuapp.com/

for print image

i hope is usefull for community




CHANGELOG
v0.4 - https://github.com/blackout314/greasemoney-btctalk_btcbalance/releases/tag/0.4
- support bcxxxx addresses (change img delivery service)

v0.3 - https://github.com/blackout314/greasemoney-btctalk_btcbalance/releases/tag/0.3
- improved regex

v0.2 - https://github.com/blackout314/greasemoney-btctalk_btcbalance/releases/tag/0.2
- fix bug in post new reply page

[1713569331]

1713569331

[1713569331]

1713569331

[hd49728]

Thank you, and welcome to my list.

Added newest userscript.

Topic	Date	written by	Section	Merit
_________________________________________________________________	__________	___________	____________________________	_______
print balance of address - v0.1	25/6/2019	babo	check address balance	0+

[babo]

i found little bug when you send reply
i fix asap with a little trick, i place 'post reply' in blacklist of script (script not work)

let me work on it

[babo]

released with bugfix

https://github.com/blackout314/greasemoney-btctalk_btcbalance/releases/tag/0.2

now new post link is escluded

[Xal0lex]

SegWit addresses don't work 

[khaled0111]

SegWit addresses don't work 

Because the script uses blockchain.info's API which does not support segwit.

[babo]

SegWit addresses don't work 

ok thank you for your issue
tomorrow i will fix it and release 0.3

thank you

[Jet Cash]

Thank goodness I use multiple addresses and wallets.

[pooya87]

you might want to add some more encoding checks (base58 and bech32 if you could add it) to the values you capture as "addresses" instead of a simple regex check for characters. right now it seems like it is possible to catch something like a transaction ID that starts with 1 or 3 (32 byte and having 0-9 and a-f) as an address.

[babo]

you might want to add some more encoding checks (base58 and bech32 if you could add it) to the values you capture as "addresses" instead of a simple regex check for characters. right now it seems like it is possible to catch something like a transaction ID that starts with 1 or 3 (32 byte and having 0-9 and a-f) as an address.

We can
Transactions? Do you have a regex ready?
Today i'll fix and ehance it

[khaled0111]

Transactions? Do you have a regex ready?

try this one:

Code:

^([13][a-km-zA-HJ-NP-Z1-9]{25,34}|bc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71})$

I found it here:
http://mokagio.github.io/tech-journal/2014/11/21/regex-bitcoin.html

You can also verify whether the address is valid or not by checking its checksum.

[babo]

try this one:

Code:

^([13][a-km-zA-HJ-NP-Z1-9]{25,34}|bc1[ac-hj-np-zAC-HJ-NP-Z02-9]{11,71})$

I found it here:
http://mokagio.github.io/tech-journal/2014/11/21/regex-bitcoin.html

You can also verify whether the address is valid or not by checking its checksum.

thank you so much, today i dont have spare time for update it, i'll try tomorrow
is a simple regex sobstitution for catch bc1xxxx address

and after i'll study a method for TX

[pooya87]

regex is not enough since it can only check validity of characters. i don't know how JavaScript works but basically you need to add a function instead of that one liner to decode the strings using Base58 encode/decode technique which would mean converting it to its numerical value then hashing the byte array using SHA256 twice and taking 4 bytes of it as checksum then see if it is correct. then pass it to get the balance. more info: https://en.bitcoin.it/wiki/Base58Check_encoding

i didn't mention Bech32 since the btc-priceimg and the blockchain.info API it uses don't support them but here is the link to its documentation: https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki

[babo]

release 0.3 version

https://github.com/blackout314/greasemoney-btctalk_btcbalance/releases/tag/0.3

with improved regex



--- update ---
http://btc-priceimg.herokuapp.com/balance/bc1qh4vcjnq5n26p9rny0mr9nlvcea0d4ksx53g8q0/ff0000

image not work, because btc-priceimg not work

[TryNinja]

I've made my own "bitcoin balance image" server that also supports Segwit addresses (bech32 included). In case you want to use in your script.

Code:

https://btc.ninjastic.space/balance/ADDRESS/COLOR

(color is optional)

https://btc.ninjastic.space/balance/bc1qfxj5fzzhkpnuyyezy9z7j7axja7n632d5wxzj6
Result:

With color:

https://btc.ninjastic.space/balance/bc1qfxj5fzzhkpnuyyezy9z7j7axja7n632d5wxzj6/ff0000
Result:

[RapTarX]

I've made my own "bitcoin balance image" server that also supports Segwit addresses (bech32 included). In case you want to use in your script.

Images aren't displayed.

[TryNinja]

I've made my own "bitcoin balance image" server that also supports Segwit addresses (bech32 included). In case you want to use in your script.

Images aren't displayed.

Hmm... it’s working here. Can you try opening it directly?

[babo]

I've made my own "bitcoin balance image" server that also supports Segwit addresses (bech32 included). In case you want to use in your script.

Code:

https://btc.ninjastic.space/balance/ADDRESS/COLOR

(color is optional)

https://btc.ninjastic.space/balance/bc1qfxj5fzzhkpnuyyezy9z7j7axja7n632d5wxzj6
Result:

With color:

https://btc.ninjastic.space/balance/bc1qfxj5fzzhkpnuyyezy9z7j7axja7n632d5wxzj6/ff0000
Result:

Perfect
I will use your service instead heroku app

Let me code the diff, and release v0.4
Thank you

[babo]

v 0.4 released

https://github.com/blackout314/greasemoney-btctalk_btcbalance/releases/tag/0.4

now bcxxxx addresses are supported

[HCP]

Script doesn't seem to be working 100%

Check this thread: https://bitcointalk.org/index.php?topic=5159518.0

For some reason it is detecting the beginning of the transactionID: e7a3e5b1a2f7c2aa5fa9ebf1cc31c123a83367502c7648dfb6c1baa0ff3e8436 as a bitcoin address and attempting to generate the balance image for it??!?

This is what I see:



Also, from looking at the "Stake Your Address" thread, it is breaking URLs with addresses in them, for instance Block Explorer links:
So, this URL:

is actually encoded as:
https://www.blockchain.com/btc/address/384pXJVj7H49Sp9p9v5RnkbozM3ioVcgnL%20%3Cimg%20src='https://btc.ninjastic.space/balance/384pXJVj7H49Sp9p9v5RnkbozM3ioVcgnL/ff0000'/%3E


and it is also struggling with large blocks of "hex"... like GPG keys etc:


and Signed Messages:



Not sure if this is a Chrome/Tampermonkey specific issue.