simple paste server example

1 files changed, 48 insertions, 0 deletions

diff --git a/htgen b/htgen
index 2a45b10..314ed52 100755
--- a/htgen
+++ b/htgen
@@ -93,5 +93,53 @@ unset k v
 echo >&2
 ## }}}
 
+# run server: STATEDIR=/tmp/htgen-state HTGEN_PORT=1080 ./htgen --serve
+# paste: echo lol | curl http://localhost:1080 -d @-
+case "$Method $Request_URI" in
+  "GET /"[0-9a-z]*)
+      item=$STATEDIR/items$Request_URI
+      if test -e $item; then
+        printf 'HTTP/1.1 200 OK\r\n'
+        printf 'Content-Type: %s\r\n' "$(file -ib $item)"
+        printf 'Server: %s\r\n' "$Server"
+        printf 'Connection: close\r\n'
+        printf 'Content-Length: %d\r\n' $(wc -c < $item)
+        printf '\r\n'
+        cat $item
+        exit
+      fi
+    ;;
+  "POST /")
+    content=$(mktemp -t htgen.$$.content.XXXXXXXX)
+    trap "rm $content >&2" EXIT
+
+    case ${req_expect-} in 100-continue)
+      printf 'HTTP/1.1 100 Continue\r\n\r\n'
+    esac
+
+    head -c $req_content_length > $content
+
+    sha256=$(sha256sum -b $content | cut -d\  -f1)
+    base32=$(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 $content $item >&2
+    fi
+
+    printf 'HTTP/1.1 200 OK\r\n'
+    printf 'Content-Type: text/plain; charset=UTF-8\r\n'
+    printf 'Server: %s\r\n' "$Server"
+    printf 'Connection: close\r\n'
+    printf 'Content-Length: %d\r\n' $(expr ${#ref} + 1)
+    printf '\r\n'
+    printf '%s\n' "$ref"
+
+    exit
+  ;;
+esac
+
 reply_404
 exit