How can I get all the request headers in Django

Question

I need to get all the Django request headers  From what i ve read  Django simply dumps everything into the request META variable along with a lot aof other data  What would be the best way to get all the headers that the client sent to my Django application   I m going use these to build a httplib request

User · Answer

I don t think there is any easy way to get only HTTP headers  You have to iterate through request META dict to get what all you need    django-debug-toolbar takes the same approach to show header information  Have a look at this file responsible for retrieving header information

User · Answer

Simply you can use HttpRequest headers from Django 2 2 onward  Following example is directly taken from the official Django Documentation under Request and response objects section    gt  gt  gt  request headers   User-Agent    Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6          gt  gt  gt   User-Agent  in request headers True  gt  gt  gt   user-agent  in request headers True   gt  gt  gt  request headers  User-Agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6   gt  gt  gt  request headers  user-agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6    gt  gt  gt  request headers get  User-Agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6   gt  gt  gt  request headers get  user-agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6

User · Answer

lt b gt request META lt  b gt  lt br gt     for k meta  v meta in request META items       lt code gt    k meta    lt  code gt       v meta     lt br gt     endfor

User · Answer

According to the documentation request META is a  standard Python dictionary containing all available HTTP headers   If you want to get all the headers you can simply iterate through the dictionary    Which part of your code to do this depends on your exact requirement  Anyplace that has access to request should do   Update     I need to access it in a Middleware class but when i iterate over it  I get a lot of values apart from HTTP headers    From the documentation      With the exception of CONTENT LENGTH and CONTENT TYPE  as given above  any HTTP headers in the request are converted to META keys by converting all characters to uppercase  replacing any hyphens with underscores and adding an HTTP  prefix to the name      Emphasis added   To get the HTTP headers alone  just filter by keys prefixed with HTTP     Update 2     could you show me how I could build a dictionary of headers by filtering out all the keys from the request META variable which begin with a HTTP  and strip out the leading HTTP  part    Sure  Here is one way to do it   import re regex   re compile   HTTP    dict  regex sub     header   value  for  header  value          in request META items   if header startswith  HTTP

User · Answer

request META get  HTTP AUTHORIZATION    python3 6 site-packages rest framework authentication py  you can get that from this file though

User · Answer

If you want to get client key from request header  u can try following   from rest framework authentication import BaseAuthentication from rest framework import exceptions from apps authentication models import CerebroAuth  class CerebroAuthentication BaseAuthentication   def authenticate self  request       client id   request META get  HTTP AUTHORIZATION       if not client id          raise exceptions AuthenticationFailed  Client key not provided       client id   client id split       if len client id     1 or len client id   gt  2          msg     Invalid secrer key header  No credentials provided            raise exceptions AuthenticationFailed msg      try          client   CerebroAuth objects get client id client id 1       except CerebroAuth DoesNotExist          raise exceptions AuthenticationFailed  No such client       return  client  None

User · Answer

Starting from Django 2 2  you can use request headers to access the HTTP headers  From the documentation on HttpRequest headers   A case insensitive  dict-like object that provides access to all HTTP-prefixed headers  plus Content-Length and Content-Type  from the request  The name of each header is stylized with title-casing  e g  User-Agent  when it   s displayed  You can access headers case-insensitively   gt  gt  gt  request headers   User-Agent    Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6          gt  gt  gt   User-Agent  in request headers True  gt  gt  gt   user-agent  in request headers True   gt  gt  gt  request headers  User-Agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6   gt  gt  gt  request headers  user-agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6    gt  gt  gt  request headers get  User-Agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6   gt  gt  gt  request headers get  user-agent   Mozilla 5 0  Macintosh  Intel Mac OS X 10 12 6    To get all headers  you can use request headers keys   or request headers items

User · Answer

For what it s worth  it appears your intent is to use the incoming HTTP request to form another HTTP request  Sort of like a gateway  There is an excellent module django-revproxy that accomplishes exactly this   The source is a pretty good reference on how to accomplish what you are trying to do

User · Answer

This is another way to do it  very similar to Manoj Govindan s answer above   import re regex http             re compile r  HTTP       regex content type     re compile r  CONTENT TYPE    regex content length   re compile r  CONTENT LENGTH     request headers      for header in request META      if regex http  match header  or regex content type match header  or regex content length match header           request headers header    request META header    That will also grab the CONTENT TYPE and CONTENT LENGTH request headers  along with the HTTP  ones  request headers  some key     request META  some key     Modify accordingly if you need to include omit certain headers  Django lists a bunch  but not all  of them here  https   docs djangoproject com en dev ref request-response  django http HttpRequest META  Django s algorithm for request headers    Replace hyphen - with underscore   Convert to UPPERCASE  Prepend HTTP  to all headers in original request  except for CONTENT TYPE and CONTENT LENGTH    The values of each header should be unmodified

[python] How can I get all the request headers in Django?

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