diff options
Diffstat (limited to 'tv')
| -rw-r--r-- | tv/2configs/elm-packages-proxy.nix | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/tv/2configs/elm-packages-proxy.nix b/tv/2configs/elm-packages-proxy.nix new file mode 100644 index 0000000..17a0d23 --- /dev/null +++ b/tv/2configs/elm-packages-proxy.nix @@ -0,0 +1,154 @@ +{ config, lib, pkgs, ... }: let + + cfg.nameserver = "1.1.1.1"; + cfg.packageDir = "/var/lib/elm-packages"; + cfg.port = 7782; + +in { + services.nginx.virtualHosts."package.elm-lang.org" = { + addSSL = true; + + # TODO secret files + sslCertificate = "/var/lib/certs/package.elm-lang.org/fullchain.pem"; + sslCertificateKey = "/var/lib/certs/package.elm-lang.org/key.pem"; + + locations."/all-packages/since/".extraConfig = '' + proxy_pass http://127.0.0.1:${toString config.krebs.htgen.elm-packages-proxy.port}; + proxy_pass_header Server; + ''; + + locations."~ ^/packages/(?<author>[A-Za-z0-9-]+)/(?<pname>[A-Za-z0-9-]+)/(?<version>(?<major>0|[1-9]\\d*)\\.(?<minor>0|[1-9]\\d*)\\.(?<patch>0|[1-9]\\d*)(?:-(?<prerelease>(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+(?<buildmetadata>[0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?)/(?:zipball|elm.json|endpoint.json)\$".extraConfig = '' + set $zipball "${cfg.packageDir}/$author/$pname/$version/zipball"; + proxy_set_header X-Author $author; + proxy_set_header X-Package $pname; + proxy_set_header X-Version $version; + proxy_set_header X-Zipball $zipball; + proxy_pass_header Server; + resolver ${cfg.nameserver}; + + if (-f $zipball) { + set $new_uri http://127.0.0.1:${toString config.krebs.htgen.elm-packages-proxy.port}; + } + if (!-f $zipball) { + set $new_uri https://package.elm-lang.org$request_uri; + } + + proxy_pass $new_uri; + ''; + }; + + krebs.htgen.elm-packages-proxy = { + port = cfg.port; + script = /* sh */ ''(. ${pkgs.writeDash "elm-packages-proxy.sh" '' + PATH=${lib.makeBinPath [ + pkgs.coreutils + pkgs.curl + pkgs.findutils + pkgs.gnugrep + pkgs.jq + pkgs.unzip + ]} + export PATH + file_response() {( + status_code=$1 + status_reason=$2 + file=$3 + content_type=$4 + + content_length=$(wc -c "$file" | cut -d\ -f1) + + printf "HTTP/1.1 $status_code $status_reason\r\n" + printf 'Connection: close\r\n' + printf 'Content-Length: %d\r\n' "$content_length" + printf 'Content-Type: %s\r\n' "$content_type" + printf 'Server: %s\r\n' "$Server" + printf '\r\n' + cat "$file" + )} + string_response() {( + status_code=$1 + status_reason=$2 + response_body=$3 + content_type=$4 + + printf "HTTP/1.1 $status_code $status_reason\r\n" + printf 'Connection: close\r\n' + printf 'Content-Length: %d\r\n' ''${#response_body} + printf 'Content-Type: %s\r\n' "$content_type" + printf 'Server: %s\r\n' "$Server" + printf '\r\n' + printf '%s\n' "$response_body" + )} + + case "$Method $Request_URI" in + 'GET /packages/'*) + + author=$req_x_author + pname=$req_x_package + version=$req_x_version + + zipball=${cfg.packageDir}/$author/$pname/$version/zipball + elmjson=$HOME/cache/$author%2F$pname%2F$version%2Felm.json + endpointjson=$HOME/cache/$author%2F$pname%2F$version%2Fendpoint.json + mkdir -p "$HOME/cache" + + case $(basename $Request_URI) in + zipball) + file_response 200 OK "$zipball" application/zip + exit + ;; + elm.json) + if ! test -f "$elmjson"; then + unzip -p "$zipball" \*/elm.json > "$elmjson" + fi + file_response 200 OK "$elmjson" 'application/json; charset=UTF-8' + exit + ;; + endpoint.json) + if ! test -f "$endpointjson"; then + hash=$(sha1sum "$zipball" | cut -d\ -f1) + url=https://package.elm-lang.org/packages/$author/$pname/$version/zipball + jq -n \ + --arg hash "$hash" \ + --arg url "$url" \ + '{ $hash, $url }' \ + > "$endpointjson" + fi + file_response 200 OK "$endpointjson" 'application/json; charset=UTF-8' + exit + ;; + esac + ;; + 'POST /all-packages/since/'*) + + # TODO only show newest? + my_packages=$( + cd ${cfg.packageDir} + find -mindepth 3 -maxdepth 3 | + jq -Rs ' + split("\n") | + map( + select(.!="") | + sub("^\\./(?<author>[^/]+)/(?<pname>[^/]+)/(?<version>[^/]+)$";"\(.author)/\(.pname)@\(.version)") + ) + ' + ) + + new_upstream_packages=$( + curl -fsS https://package.elm-lang.org"$Request_URI" + ) + + response=$( + jq -n \ + --argjson my_packages "$my_packages" \ + --argjson new_upstream_packages "$new_upstream_packages" \ + '$new_upstream_packages + $my_packages' + ) + + string_response 200 OK "$response" 'application/json; charset=UTF-8' + exit + ;; + esac + ''})''; + }; +} |