Comment 50 for bug 1713615

The problem here seems to be that the files are already downloaded, and when asking sourceforge to continue the download, it does the redirect rather than responding with a 416 error with the appropriate content-range as it should.

jak@jak-t480s:$ /usr/lib/apt/apt-helper -q -o debug::acquire::http=1 -o debug::acquire::https=1 download-file https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm cabextract-0.6-1.src.rpm
GET /project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm HTTP/1.1
Host: newcontinuum.dl.sourceforge.net
User-Agent: Debian APT-HTTP/1.3 (1.8.0)

Answer for: https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm
HTTP/1.1 200 OK
Date: Mon, 29 Apr 2019 18:52:51 GMT
Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips
Last-Modified: Thu, 15 Aug 2002 15:45:22 GMT
ETag: "172cf-3a841fe3ec880"
Accept-Ranges: bytes
Content-Length: 94927
Connection: close
Content-Type: application/octet-stream

Get:1 https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm [94,9 kB]
Fetched 94,9 kB in 2s (55,5 kB/s)
jak@jak-t480s:$ /usr/lib/apt/apt-helper -q -o debug::acquire::http=1 -o debug::acquire::https=1 download-file https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm cabextract-0.6-1.src.rpm
GET /project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm HTTP/1.1
Host: newcontinuum.dl.sourceforge.net
Range: bytes=94927-
If-Range: Thu, 15 Aug 2002 15:45:22 GMT
User-Agent: Debian APT-HTTP/1.3 (1.8.0)

Answer for: https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm
HTTP/1.1 302 Found
Date: Mon, 29 Apr 2019 18:52:54 GMT
Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips
Location: http://downloads.sourceforge.net/mirrorproblem?failedmirror=newcontinuum.dl.sourceforge.net
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=iso-8859-1

Err:1 https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm
  Redirection from https to 'http://downloads.sourceforge.net/mirrorproblem?failedmirror=newcontinuum.dl.sourceforge.net' is forbidden [IP: 64.79.96.4 443]
E: Failed to fetch https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm Redirection from https to 'http://downloads.sourceforge.net/mirrorproblem?failedmirror=newcontinuum.dl.sourceforge.net' is forbidden [IP: 64.79.96.4 443]
E: Download Failed
jak@jak-t480s:$ rm cabextract-0.6-1.src.rpm
This tool has been deprecated, use 'gio trash' instead.
See 'gio help trash' for more info.

jak@jak-t480s:$ /usr/lib/apt/apt-helper -q -o debug::acquire::http=1 -o debug::acquire::https=1 download-file https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm cabextract-0.6-1.src.rpm
GET /project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm HTTP/1.1
Host: newcontinuum.dl.sourceforge.net
User-Agent: Debian APT-HTTP/1.3 (1.8.0)

Answer for: https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm
HTTP/1.1 200 OK
Date: Mon, 29 Apr 2019 18:52:57 GMT
Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips
Last-Modified: Thu, 15 Aug 2002 15:45:22 GMT
ETag: "172cf-3a841fe3ec880"
Accept-Ranges: bytes
Content-Length: 94927
Connection: close
Content-Type: application/octet-stream

Get:1 https://newcontinuum.dl.sourceforge.net/project/corefonts/cabextract/0.6/cabextract-0.6-1.src.rpm [94,9 kB]
Fetched 94,9 kB in 2s (55,9 kB/s)