pyrox.dev
1#! @shell@
2
3STORE_DIR="${NIX_STORE_DIR:-/nix/store}"
4MASS_QUERY=0
5PRIORITY=75
6COMPRESSION=bzip2
7KEY=
8KEYNAME=na
9
10export NIX_REMOTE=daemon
11
12config="${NIX_BINARY_CACHE_CONFIG:-${HTTP_NIX_BINARY_CACHE_CONFIG:-/etc/nix/nix-binary-cache.cgi.conf}}"
13config="$(cd "$(@coreutils@/dirname "$config")";
14 @coreutils@/pwd)/$(@coreutils@/basename "$config")"
15@coreutils@/test -e "$config" && . "$config"
16
17header(){
18 echo "Content-Type: text/plain; charset=utf-8"
19 echo
20}
21
22header404(){
23 echo "Status: 404 Not Found"
24 echo
25}
26
27clean_path() {
28 @gnused@/sed -re "s@^$STORE_DIR/?@@" | @findutils@/xargs
29}
30
31storeq(){
32 @nix@/nix-store -q "$@"
33}
34
35sign(){
36 test -n "$1" &&
37 @coreutils@/sha256sum | @gnused@/sed -e 's/ .*//' |
38 @openssl@/openssl rsautl -sign -inkey "$@" | @coreutils@/base64 -w 0
39}
40
41case "$QUERY_STRING" in
42 "")
43 header
44 echo "Hello, this is a dynamically-generated Nix binary cache"
45 ;;
46 /debug)
47 header
48 set
49 ;;
50 /nix-cache-info)
51 header
52 echo "StoreDir: $STORE_DIR"
53 echo "WantMassQuery: $MASS_QUERY"
54 echo "Priority: $PRIORITY"
55 ;;
56 *.narinfo)
57 hash=${QUERY_STRING%.narinfo}
58 hash=${hash#/}
59 path="$(echo "$STORE_DIR/$hash-"* | @coreutils@/sort | @coreutils@/head -n 1)"
60 if [ -n "$path" ] && [ -e "$path" ]; then
61 header
62 info="$(
63 echo "StorePath: $path"
64 echo "URL: $(@coreutils@/basename "$path"
65 ).nar.$COMPRESSION"
66 echo "Compression: $COMPRESSION"
67 echo "NarHash: $(storeq --hash "$path")"
68 echo "NarSize: $(storeq --size "$path")"
69 echo "References: $(storeq --references "$path" |
70 @coreutils@/tac | clean_path )"
71 echo "Deriver: $(storeq --deriver "$path" |
72 clean_path )"
73 )"
74 signature="$(echo "$info" | sign "$KEY")"
75
76 echo "$info"
77 echo "Signature: 1;$KEYNAME;$signature"
78
79 else
80 header404
81 exit 1
82 fi
83 ;;
84 *.nar.xz)
85 path="$STORE_DIR${QUERY_STRING%.nar.xz}"
86 if [ -n "$path" ] && [ -e "$path" ]; then
87 header
88 @nix@/nix-store --dump "$path" | @xz@/xz
89 else
90 header404
91 exit 1
92 fi
93 ;;
94 *.nar.bzip2)
95 path="$STORE_DIR${QUERY_STRING%.nar.bzip2}"
96 echo "$path" >&2;
97 if [ -n "$path" ] && [ -e "$path" ]; then
98 header
99 @nix@/nix-store --dump "$path" | @bzip2@/bzip2
100 else
101 header404
102 exit 1
103 fi
104 ;;
105esac