diff options
Diffstat (limited to 'lass/2configs/go.nix')
-rw-r--r-- | lass/2configs/go.nix | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lass/2configs/go.nix b/lass/2configs/go.nix index ecf89b29..7ff27a61 100644 --- a/lass/2configs/go.nix +++ b/lass/2configs/go.nix @@ -15,5 +15,68 @@ ]; }; }; + krebs.htgen.go = { + port = 3333; + script = ''. ${pkgs.writeDash "go" '' + find_item() { + if test ''${#1} -ge 7; then + set -- "$(find "$STATEDIR/items" -mindepth 1 -maxdepth 1 \ + -regex "$STATEDIR/items/$1[0-9A-Za-z]*$")" + if test -n "$1" && test $(echo "$1" | wc -l) = 1; then + echo "$1" + return 0 + fi + fi + return 1 + } + + STATEDIR=$HOME + mkdir -p "$STATEDIR/items" + + case "$Method $Request_URI" in + "GET /"*) + if item=$(find_item "''${Request_URI#/}"); then + uri=$(cat "$item") + printf 'HTTP/1.1 302 Found\r\n' + printf 'Content-Type: text/plain\r\n' + printf 'Connection: closed\r\n' + printf 'Location: %s\r\n' "$uri" + printf '\r\n' + exit + fi + ;; + "POST /") + uri=$(mktemp -t htgen.$$.content.XXXXXXXX) + trap 'rm $uri >&2' EXIT + + head -c "$req_content_length" \ + | grep -Eo 'https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)' \ + | head -1 \ + > $uri + sha256=$(sha256sum -b "$uri" | cut -d\ -f1) + base32=$(${pkgs.nixStable}/bin/nix-hash --to-base32 --type sha256 "$sha256") + item="$STATEDIR/items/$base32" + ref="http://$req_host/$base32" + + if ! test -e "$item"; then + mkdir -v -p "$STATEDIR/items" >&2 + cp -v $uri "$item" >&2 + fi + + base32short=$(echo "$base32" | cut -b-7) + if item=$(find_item "$base32short"); then + ref="http://$req_host/$base32short" + fi + + printf 'HTTP/1.1 200 OK\r\n' + printf 'Content-Type: text/plain; charset=UTF-8\r\n' + printf 'Connection: close\r\n' + printf '\r\n' + printf '%s\n' "$ref" + exit + ;; + esac + ''}''; + }; } |