nixos-config/machines/renge/services/sbruder.xyz/blocks.nix
Simon Bruder 4880116919
renge/sbruder.xyz: Add censorship infrastructure
I don’t want to do this, but I might have to. Hetzner’s ToS are very
vague in what content they don’t allow, so I think I might have to
comply with the Russian censorship authority.
2023-04-29 09:41:00 +02:00

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# I dont do this, because I want to.
# I think I might have to do this because of § 8.2 of Hetzners ToS.
{ config, lib, ... }:
let
serviceBlocks = {
nitter = [
{ path = "/ks1v/status/1439866313476689924"; report = "2023-04-21-Hetzner-C591581F-ROSKOMNADZOR.txt"; }
];
iv = [
{ video = "NR57D2UVqm4"; report = "2023-04-28-Hetzner-C633C02D-ROSKOMNADZOR.txt"; }
];
libreddit = [
];
};
in
{
services.nginx.virtualHosts = lib.mapAttrs'
(domain: blocks: lib.nameValuePair "${domain}.sbruder.xyz" {
locations = lib.listToAttrs
(map
(block:
let
# workaround for nginx dropping parent headers
# see https://github.com/yandex/gixy/blob/master/docs/en/plugins/addheaderredefinition.md
parentHeaders = lib.concatStringsSep "\n" (lib.filter
(lib.hasPrefix "add_header ")
(lib.splitString "\n" config.services.nginx.commonHttpConfig));
transparency_url = "https://sbruder.xyz/transparency/${block.report}";
return_statement = ''
${parentHeaders}
add_header Link "<${transparency_url}>; rel=blocked-by" always;
add_header Content-Type text/html always;
return 451 '<html><head><title>451 Unavailable For Legal Reasons</title></head><body><center><h1>451 Unavailable For Legal Reasons</h1><p><a href="${transparency_url}">Transparency</a></p></center><hr><center>nginx</center></body></html>';
'';
path =
if block ? "path"
then block.path
else
(if block ? "video"
then "/" # not pretty, but I dont know how to do this differently
else throw "invalid block");
location_block =
if block ? "video"
then {
extraConfig = ''
if ($arg_v = ${block.video}) {
${return_statement}
}
'';
}
else { extraConfig = return_statement; };
in
lib.nameValuePair
path
location_block)
blocks);
})
serviceBlocks;
}