initHEADmain

3 files changed, 55 insertions, 0 deletions

diff --git a/cache.sh b/cache.sh
new file mode 100755
index 0000000..c84fe71
--- /dev/null
+++ b/cache.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+set -o pipefail
+: "${CACHE_AGE:=300}"
+test -n "$CACHE_DIR" || exit 1
+cache="$CACHE_DIR/$(echo "$*" | base64)"
+if test -f "$cache"; then
+    now="$(date +%s)"
+    mod="$(stat -c %Y "$cache")"
+    if test $((mod + CACHE_AGE)) -gt "$now"; then
+        if ! test -s "$cache"; then
+            exit 1
+        fi
+        exec cat "$cache"
+    fi
+fi
+"$@" | tee "$cache"
diff --git a/drasl-heads.cgi b/drasl-heads.cgi
new file mode 100755
index 0000000..a6423b7
--- /dev/null
+++ b/drasl-heads.cgi
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+finish() {
+    echo "Status: $1"
+    echo "Content-type: $2"
+    echo
+    cat -
+    exit
+}
+
+echo "$REQUEST_URI" \
+    | sed -nE "s#$DRASL_HEADS_ROOT/([[:xdigit:]]{32})/([[:digit:]]+)#\1 \2#p" \
+    | {
+        IFS=' '
+        if ! read -r uuid size; then
+            echo "Bad Request" | finish "400 Bad Request" "text/plain"
+        fi
+
+        if test "$size" -gt 64; then
+            echo "Size Limit Exceeded" | finish "403 Forbidden" "text/plain"
+        fi
+
+        image="$(mktemp)"
+        trap 'rm $image' EXIT
+
+        if ./cache.sh ./head.sh "$uuid" "$size" 2>/dev/null > "$image"; then
+            finish "200 OK" "image/png" < "$image"
+        else
+            echo "Not Found" | finish "404 Not Found" "text/plain" 
+        fi
+    } 
diff --git a/head.sh b/head.sh
new file mode 100755
index 0000000..ccccb85
--- /dev/null
+++ b/head.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -o pipefail
+curl "$DRASL_BACKEND/session/minecraft/profile/$1" \
+    | jq -r '.properties[] | select(.name == "textures") | .value' \
+    | base64 -d \
+    | jq -r '.textures.SKIN.url' \
+    | xargs -n1 curl \
+    | magick - -scale $(($2 * 8)) -crop "$2"x"$2"+"$2"+"$2" -