moved wiki() and caching functions from page handler to tools

[shellwiki] / tools.sh

diff --git a/tools.sh b/tools.sh
index 65327d7c38f229e3815b207f173d86823245ae50..b19a83d92c5c87be2005c6e3035982275aa69548 100755 (executable)
--- a/tools.sh
+++ b/tools.sh
@@ -19,6 +19,10 @@ include_tools="$0"
 
 . "${_EXEC}/cgilite/storage.sh"
 
+CACHE_AGE=${CACHE_AGE:-300}
+export MD_MACROS="$_EXEC/macros"
+export MD_HTML="${MD_HTML:-false}"
+
 md(){
   local parser
 
@@ -57,6 +61,34 @@ mdfile(){
   return 0
 }
 
+wiki() {
+  # Print content of a wiki page
+  # Get page from data or underlay dir, handle caching
+  local page="$(PATH "$1")" mdfile cache cachetime
+
+  cache="$_DATA/pages/$page/#page:${LANGUAGE}.${USER_ID}.cache"
+
+  mdfile="$(mdfile "$page")" || return 4
+  acl_read "$page" || return 3
+
+  cachetime="$(stat -c %Y -- "$mdfile" "$cache" 2>/dev/null)"
+
+  if [ "${cachetime#*${BR}}" -gt "${cachetime%${BR}*}" \
+    -a "${cachetime#*${BR}}" -gt "$((_DATE - CACHE_AGE))" ]; then
+    cat "${cache}"
+  else
+    mkdir -p -- "$_DATA/pages/$page/"
+    # Macros expect to find page directory as working dir
+    ( cd -- "$_DATA/pages/$page/";
+      md <"$mdfile" \
+      | tee -- "${cache}.$$"
+    )
+    grep -q '^%nocache' "$mdfile" \
+    && rm -- "${cache}.$$" \
+    || mv -- "${cache}.$$" "${cache}"
+  fi
+}
+
 size_human(){
   local size="$1"