Merge commit '8a7abfd24c55754dc0ee886cbece67cd3afc585c'

[shellwiki] / acl.sh

diff --git a/acl.sh b/acl.sh
index 1b25d5ec78c93d7c33006aad9a0a329f7f9f3cb4..93cbf6471007428d68ae96ba7f443930ef278527 100755 (executable)
--- a/acl.sh
+++ b/acl.sh
@@ -3,6 +3,20 @@
 [ "$include_acl" ] && return 0
 include_acl="$0"
 
+# Copyright 2022 - 2023 Paul Hänsch
+# 
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 # ACL_OVERRIDE="${ACL_OVERRIDE:-Admin:read,write}"
 ACL_DEFAULT="${ACL_DEFAULT:-Known:read,write${BR}All:read}"
 
@@ -10,19 +24,11 @@ acl_cachepath=''
 acl_collection=''
 
 acl_collect(){
-  local path="${1:-${PATH_INFO}}"
+  local path="$1"
   # Get directory part of PATH_INFO
   local path="${path%/*}/./"
   local pagefile head acl
 
-  if [ "$acl_cachepath" = "$path" ]; then
-    printf '%s\n' "$ACL_OVERRIDE" "$acl_collection" "$ACL_DEFAULT"
-    return 0
-  else
-    acl_cachepath="$path"
-    acl_collection=''
-  fi
-
   printf '%s\n' "$ACL_OVERRIDE"
 
   while :; do
@@ -53,7 +59,6 @@ acl_collect(){
     ' <"$pagefile")"
 
     printf %s\\n "${acl}"
-    acl_collection="${acl_collection}${acl}${BR}"
   done
 
   printf '%s\n' "$ACL_DEFAULT"
@@ -63,6 +68,11 @@ acl_read(){
   local page="${1:-${PATH_INFO}}"
   local acl
 
+  if [ "$acl_cachepath" != "$page" ]; then
+    acl_cachepath="$page"
+    acl_collection="$(acl_collect "$page")"
+  fi
+
   while read -r acl; do
     case ${acl##*:} in
       read|*,read,*|read,*|*,read)
@@ -85,8 +95,8 @@ acl_read(){
       "+All:read") return 0;;
       "-All:read") return 1;;
     esac
-  done <<-EOF
-       $(acl_collect "$page")
+   done <<-EOF
+       ${acl_collection}
        EOF
   return 1
 }
@@ -95,6 +105,11 @@ acl_write(){
   local page="${1:-${PATH_INFO}}"
   local acl
 
+  if [ "$acl_cachepath" != "$page" ]; then
+    acl_cachepath="$page"
+    acl_collection="$(acl_collect "$page")"
+  fi
+
   while read -r acl; do
     case ${acl##*:} in
       write|*,write,*|write,*|*,write)
@@ -118,7 +133,7 @@ acl_write(){
       "-All:write") return 1;;
     esac
   done <<-EOF
-       $(acl_collect "$page")
+       ${acl_collection}
        EOF
   return 1
 }