[Bug 34009] Re: apt fails when a web proxy filters clients based on User-Agent strings

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** Changed in: apt (Debian)
       Status: Unknown => Fix Released

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https://bugs.launchpad.net/bugs/34009

Title:
  apt fails when a web proxy filters clients based on User-Agent strings

Status in “apt” package in Ubuntu:
  Fix Released
Status in “apt” package in Debian:
  Fix Released

Bug description:
  Some web proxies restrict access to clients based on the User-Agent
  HTTP request value.  When behind these proxies, the apt http method
  fails.  If no other network pathway is open, users are reduced to
  sneakernet for update transfer.

  This is an upstream bug.

  A simple patch enables a new configuration option, Acquire:http:User-
  Agent, which takes a User-Agent string value to be added to the
  request.  The existing APT-HTTP User-Agent string remains the default.

  Patch follows:

  --- methods/http.cc
  +++ methods/http.cc
  @@ -681,8 +681,12 @@
      if (Uri.User.empty() == false || Uri.Password.empty() == false)
         Req += string("Authorization: Basic ") + 
             Base64Encode(Uri.User + ":" + Uri.Password) + "\r\n";
  -   
  -   Req += "User-Agent: Debian APT-HTTP/1.3\r\n\r\n";
  +
  +   string UserAgent = _config->Find("Acquire::http::User-Agent");
  +   if (UserAgent.empty() == false)
  +          Req += "User-Agent: " + UserAgent + "\r\n\r\n";
  +   else
  +          Req += "User-Agent: Debian APT-HTTP/1.3\r\n\r\n";
      
      if (Debug == true)
         cerr << Req << endl;

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