Merge commit '6bc502434737d7f08379e79b94fc6fda424ef779'

[shellwiki] / acl.sh

diff --git a/acl.sh b/acl.sh
index 1017c6e7188018dd50d864052785f627670d8bce..9e1da4c28f69aecdd61c3dae8bf67106fab54190 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}"
 
@@ -52,7 +66,7 @@ acl_collect(){
 
 acl_read(){
   local page="${1:-${PATH_INFO}}"
-  local acl
+  local acl group
 
   if [ "$acl_cachepath" != "$page" ]; then
     acl_cachepath="$page"
@@ -65,21 +79,28 @@ acl_read(){
          acl="${acl%%:*}:read";;
       *) acl="${acl%%:*}:";;
     esac
+    [ "$USER_NAME" ] && case ${acl%:*} in
+      \&*|+\&*|-\&*)
+        group="${acl%%:*}" group="${group#[+-]}"
+        printf '%s\n' "$USER_GROUPS" |grep -qxF "$group" \
+        || continue
+        ;;
+    esac
     [ "$USER_NAME" ] && case $acl in
-       "Known:read") return 0;;
-       "Known:")     return 1;;
-      "+Known:read") return 0;;
-      "-Known:read") return 1;;
-       "@${USER_NAME}:read") return 0;;
-       "@${USER_NAME}:")      return 1;;
-      "+@{$USER_NAME}:read") return 0;;
-      "-@{$USER_NAME}:read") return 1;;
+       "@${USER_NAME}:"|"Known:"|"@@:"|"&"*":")
+        return 1;;
+       "@${USER_NAME}:read"|"Known:read"|"@@:read"|"&"*":read")
+        return 0;;
+      "-@{$USER_NAME}:read"|"-Known:read"|"-@@:read"|"-&"*":read")
+        return 1;;
+      "+@{$USER_NAME}:read"|"+Known:read"|"+@@:read"|"+&"*":read")
+        return 0;;
     esac
     case $acl in
-       "All:read") return 0;;
-       "All:")     return 1;;
-      "+All:read") return 0;;
-      "-All:read") return 1;;
+       "All:"|"*:")          return 1;;
+       "All:read"|"*:read")  return 0;;
+      "-All:read"|"-*:read") return 1;;
+      "+All:read"|"+*:read") return 0;;
     esac
    done <<-EOF
        ${acl_collection}
@@ -89,7 +110,7 @@ acl_read(){
 
 acl_write(){
   local page="${1:-${PATH_INFO}}"
-  local acl
+  local acl group
 
   if [ "$acl_cachepath" != "$page" ]; then
     acl_cachepath="$page"
@@ -102,21 +123,28 @@ acl_write(){
          acl="${acl%%:*}:write";;
       *) acl="${acl%%:*}:";;
     esac
+    [ "$USER_NAME" ] && case ${acl%:*} in
+      \&*|+\&*|-\&*)
+        group="${acl%%:*}" group="${group#[+-]}"
+        printf '%s\n' "$USER_GROUPS" |grep -qxF "$group" \
+        || continue
+        ;;
+    esac
     [ "$USER_NAME" ] && case ${acl} in
-       "Known:write") return 0;;
-       "Known:")      return 1;;
-      "+Known:write") return 0;;
-      "-Known:write") return 1;;
-       "@${USER_NAME}:write") return 0;;
-       "@${USER_NAME}:")      return 1;;
-      "+@{$USER_NAME}:write") return 0;;
-      "-@{$USER_NAME}:write") return 1;;
+       "@${USER_NAME}:"|"Known:"|"@@:"|"&"*":")
+        return 1;;
+       "@${USER_NAME}:write"|"Known:write"|"@@:write"|"&"*":write")
+        return 0;;
+      "-@{$USER_NAME}:write"|"-Known:write"|"-@@:write"|"-&"*":write")
+        return 1;;
+      "+@{$USER_NAME}:write"|"+Known:write"|"+@@:write"|"+&"*":write")
+        return 0;;
     esac
     case $acl in
-       "All:write") return 0;;
-       "All:")      return 1;;
-      "+All:write") return 0;;
-      "-All:write") return 1;;
+       "All:"|"*:")             return 1;;
+       "All:write"|"*:write")   return 0;;
+      "-All:write"|"-*:write")  return 1;;
+      "+All:write"|"+*:write")  return 0;;
     esac
   done <<-EOF
        ${acl_collection}