Opened 5 years ago

Closed 5 years ago

#31010 closed New feature (fixed)

Add subdomains of localhost to ALLOWED_HOSTS in DEBUG mode

Reported by: thenewguy Owned by: thenewguy
Component: HTTP handling Version: dev
Severity: Normal Keywords:
Cc: Triage Stage: Ready for checkin
Has patch: yes Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: yes UI/UX: no

Description (last modified by thenewguy)

It would minimize configuration for new projects if ALLOWED_HOSTS += .localhost when DEBUG=True

Chrome resolves *.localhost to localhost without modifying any host files or DNS

Referencing the project this way makes it easy to test subdomains -> static.localhost, uploads.localhost, www.localhost, etc

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Updated
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Conversation on developer mailing list resulted in decision to reopen and accept ticket. The conversation turned up that this behavior is spec compliant per ​https://tools.ietf.org/html/rfc6761#section-6.3

Change History (9)

comment:1 by Carlton Gibson, 5 years ago

Resolution: → needsinfo
Status: new → closed

Interesting. Currently we have, in HttpRequest.get_host():

        # Allow variants of localhost if ALLOWED_HOSTS is empty and DEBUG=True.
        allowed_hosts = settings.ALLOWED_HOSTS
        if settings.DEBUG and not allowed_hosts:
            allowed_hosts = ['localhost', '127.0.0.1', '[::1]']

Can I ask you to post to the DevelopersMailingList to canvas opinion? Assuming no blockers are raised it seems reasonable enough... (Reopen if accepted there.)

Last edited 5 years ago by Carlton Gibson (previous) (diff)

comment:2 by thenewguy, 5 years ago

For reference, the conversation chain has been started: ​https://groups.google.com/forum/#!topic/django-developers/xcoAF9Gm_dI

comment:3 by thenewguy, 5 years ago

Description: modified (diff)
Easy pickings: set
Resolution: needsinfo
Status: closed → new
Triage Stage: Unreviewed → Accepted

comment:4 by thenewguy, 5 years ago

Has patch: set
Owner: changed from nobody to thenewguy
Status: new → assigned

PR submitted ​https://github.com/django/django/pull/12132

comment:5 by thenewguy, 5 years ago

Triage Stage: Accepted → Ready for checkin

comment:6 by Simon Charette, 5 years ago

Needs tests: set
Patch needs improvement: set
Triage Stage: Ready for checkin → Accepted

Hey there, thanks for your PR! Please don't mark your own patch Ready for Checking, someone else has to review it and mark it accordingly. I left come comments for improvements on the PR.

comment:7 by Mariusz Felisiak, 5 years ago

Type: Uncategorized → New feature

comment:8 by Mariusz Felisiak, 5 years ago

Component: Uncategorized → HTTP handling
Needs tests: unset
Patch needs improvement: unset
Triage Stage: Accepted → Ready for checkin
Version: 2.2 → master

comment:9 by Mariusz Felisiak <felisiak.mariusz@…>, 5 years ago

Resolution: → fixed
Status: assigned → closed

In adb9661:

Fixed #31010 -- Allowed subdomains of localhost in the Host header by default when DEBUG=True.

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