# What method is used by Discourse to identify urls in post body
**URL:** https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876
**Category:** Development
**Created:** [12 december 2017 om 15:16 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876 "2017-12-12T15:16:44Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Sudaraka](https://meta.discourse.org/u/Sudaraka)
#### Post date: [12 december 2017 om 15:16 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/1 "2017-12-12T15:16:44Z")
What method is used by Discourse to identify urls in post body and make it clickable?. I tried going through the codebase. But still no luck.
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### Author:  [@notriddle](https://meta.discourse.org/u/notriddle)
#### Post date: [12 december 2017 om 15:35 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/2 "2017-12-12T15:35:40Z")
It uses [markdown-it](https://github.com/markdown-it/markdown-it)’s linkify extension.
[https://github.com/markdown-it/linkify-it](https://github.com/markdown-it/linkify-it)
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### Author:  [@Sudaraka](https://meta.discourse.org/u/Sudaraka)
#### Post date: [12 december 2017 om 15:42 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/3 "2017-12-12T15:42:22Z")
Thank you @notriddle 😀
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### Author:  [@Sudaraka](https://meta.discourse.org/u/Sudaraka)
#### Post date: [12 december 2017 om 16:22 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/4 "2017-12-12T16:22:34Z")
The above is used for client, are there any similar ways for ruby on rails ?
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### Author:  [@xrav3nz](https://meta.discourse.org/u/xrav3nz)
#### Post date: [12 december 2017 om 17:07 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/5 "2017-12-12T17:07:59Z")
It actually also uses `linkify-it`.
I could be wrong, AFAIK the [`PrettyText` module](https://github.com/discourse/discourse/blob/master/lib/pretty_text.rb) is used to cook raw content into markdown: it essentially utilizes `mini_racer` to embed the V8 JavaScript Engine into Ruby, and runs exactly the same scripts as the client.
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### Author:  [@vinothkannans](https://meta.discourse.org/u/vinothkannans)
#### Post date: [12 december 2017 om 17:16 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/6 "2017-12-12T17:16:04Z")
I guess you want to extract all the links inside the post for the feature [Preventing malicious linking - #27 by Sudaraka](https://meta.discourse.org/t/preventing-malicious-linking/37982/27). You can get it simply by `doc.css("a[href]")` using Nokogiri module.
example
>
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### Author:  [@Sudaraka](https://meta.discourse.org/u/Sudaraka)
#### Post date: [12 december 2017 om 17:22 UTC](https://meta.discourse.org/t/what-method-is-used-by-discourse-to-identify-urls-in-post-body/75876/7 "2017-12-12T17:22:27Z")
Thank you @xrav3nz and @vinothkannans . Yes @vinothkannans I was trying to find the optimal method for extracting all urls in the post 🙂