Yeah, I am also worried about the churn for no gain in my eyes. If users 
overuse mark_safe, they will overuse dangerously_trust_html too…

On Wednesday, February 21, 2018 at 10:41:15 PM UTC+1, Josh Smeaton wrote:
>
> I agree that the names are misleading and we should probably provide 
> better names. I'm wary of deprecating the old names because it'll create a 
> lot of churn (some of which would be the right thing to do). Maybe we could 
> just alias and warn when using the old name, leaving a decision on 
> deprecation until some time in the future.
>
> On Monday, 29 January 2018 03:14:27 UTC+11, Stuart Cox wrote:
>>
>> In my experience, misuse of mark_safe() — i.e. marking stuff safe which 
>> *isn’t* actually safe (e.g. HTML from a rich text input) — is one of the 
>> biggest causes of XSS vulnerabilities in Django projects.
>>
>> The docs warn to be careful, but unfortunately I think Django devs have 
>> just got too used to mark_safe() being *the way* to insert HTML in a 
>> template. And it’s easy for something that was safe when it was authored 
>> (e.g. calling mark_safe() on a hard-coded string) to be copied / 
>> repurposed / adapted into a case which is no longer be safe (e.g. that 
>> string replaced with a user-provided value).
>>
>> Some other frameworks use scary sounding names to help reinforce that 
>> there are dangers around similar features, and that this isn’t something 
>> you should use in everyday work — e.g. React’s dangerouslySetInnerHTML.
>>
>> Relatedly, this topic 
>> <https://groups.google.com/d/msg/django-developers/c4fa2pOcHxo/EtT942WnyiAJ> 
>> suggested 
>> making it more explicit that mark_safe() refers to being safe for use in 
>> *HTML* contexts (rather than JS, CSS, SQL, etc).
>>
>> Combining the two, it would be great if Django could rename mark_safe() to 
>> dangerously_trust_html(), |safe to |dangerously_trust_html, @csrf_exempt to 
>> @dangerously_csrf_exempt, etc.
>>
>> Developers who know what they’re doing with these could then be 
>> encouraged to create suitable wrappers which handle their use case safely 
>> internally — e.g.:
>>
>> @register.filter
>> def sanitize_and_trust_html(value):
>>     # Safe because we sanitize before trusting
>>     return dangerously_trust_html(bleach.clean(value))
>>
>>
>>

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