#!/bin/sh
+[ "$include_tools" ] && return 0
+include_tools="$0"
+
+# Copyright 2022 - 2023 Paul Hänsch
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+. "${_EXEC}/cgilite/storage.sh"
+
+md(){
+ local parser
+
+ if [ "$#" = 0 ]; then
+ md "${_EXEC}"/parsers/*
+ elif [ "$#" = 1 ]; then
+ "$1"
+ else
+ parser="$1"
+ shift 1
+ "$parser" |md "$@"
+ fi
+}
+
+mdfile(){
+ # Check if page exists, if possible fall
+ # back to default page from installation
+ local page="$(PATH "$1")"
+ page="${page%/}"
+
+ # Regular processing, keep in sync with tools.sh
+ if [ -f "$_DATA/pages/$page/:$LANGUAGE/#page.md" ]; then
+ printf %s\\n "$_DATA/pages/$page/:$LANGUAGE/#page.md"
+ elif [ -f "$_DATA/pages/$page/#page.md" ]; then
+ printf %s\\n "$_DATA/pages/$page/#page.md"
+ elif [ -f "$_EXEC/pages/$page/:$LANGUAGE/#page.md" ]; then
+ printf %s\\n "$_EXEC/pages/$page/:$LANGUAGE/#page.md"
+ elif [ -f "$_EXEC/pages/$page/#page.md" ]; then
+ printf %s\\n "$_EXEC/pages/$page/#page.md"
+ else
+ return 1
+ fi 2>&-
+ # ^^ suppress error messages produced
+ # by printf when stdout was closed
+
+ return 0
+}
+
size_human(){
local size="$1"
printf "%i B" "$size"
fi
}
+
+attachment_glob(){
+ local pattern="${1%/}" IFS=''
+ local glob page pagedir
+
+ page="${pattern%/*}"
+ [ "$page" = "$pattern" ] && page=.
+ [ ! "$page" ] && page=/
+ pattern="${pattern##*/}"
+ [ ! "$pattern" ] && pattern="*"
+
+ case $page in
+ /*)
+ for glob in "$_DATA/pages/$page/#attachments"/$pattern; do printf '%s\n' "${glob#"$_DATA/pages"}"; done
+ for glob in "$_EXEC/pages/$page/#attachments"/$pattern; do printf '%s\n' "${glob#"$_EXEC/pages"}"; done
+ ;;
+ *)
+ for glob in "$_DATA/pages/$PATH_INFO/$page/#attachments"/$pattern; do printf '%s\n' "${glob#"$_DATA/pages/$PATH_INFO/"}"; done
+ for glob in "$_EXEC/pages/$PATH_INFO/$page/#attachments"/$pattern; do printf '%s\n' "${glob#"$_EXEC/pages/$PATH_INFO/"}"; done
+ ;;
+ esac \
+ | sort -u \
+ | while read -r glob; do
+ [ -e "$glob" ] || continue
+ pagedir="$(page_abs "${glob%%/#attachments/*}/")"
+ [ -d "$_DATA/pages/$pagedir" -o -d "$_EXEC/pages/$pagedir" ] \
+ && printf '%s\n' "${glob%%/#attachments/*}/${glob#*/#attachments/}"
+ done
+}
+
+page_glob(){
+ local pattern="${1%/}/" depth="${2:-0}" IFS=''
+ local glob page pagedir
+
+ case $pattern in
+ /*)
+ for glob in "$_DATA/pages"$pattern; do printf '%s\n' "${glob#"$_DATA/pages"}"; done
+ for glob in "$_EXEC/pages"$pattern; do printf '%s\n' "${glob#"$_EXEC/pages"}"; done
+ ;;
+ *)
+ for glob in "$_DATA/pages/$PATH_INFO"/$pattern; do printf '%s\n' "${glob#"$_DATA/pages/$PATH_INFO/"}"; done
+ for glob in "$_EXEC/pages/$PATH_INFO"/$pattern; do printf '%s\n' "${glob#"$_EXEC/pages/$PATH_INFO/"}"; done
+ ;;
+ esac \
+ | sort -u \
+ | while read -r page; do
+ # Not a page directory (just a metadata dir)
+ [ ! "${page%%#*}" -o ! "${page%%*/#*}" ] && continue
+
+ # Omit "system" pages unless explicitly wanted
+ [ ! "${page%%\[*\]/*}" -o ! "${page%%*/\[*\]/*}" ] && [ "$glob_system_pages" != true ] && continue
+
+ # Omit translation pages if translations are enabled
+ [ ! "${page%%:*}" -o ! "${page%%*/:*}" ] && [ "$LANGUAGE_DEFAULT" ] && continue
+
+ pagedir="$(page_abs "$page")"
+
+ if [ -d "$_DATA/pages/$pagedir" -o -d "$_EXEC/pages/$pagedir" ]; then
+ printf '%s\n' "$page"
+ if ! [ "$depth" -eq 0 ]; then
+ PATH_INFO="$pagedir" page_glob "*" "$((depth - 1))" \
+ | while read -r glob; do printf %s%s\\n "$page" "$glob"; done
+ fi
+ fi
+ done
+}
+
+page_abs(){
+ case $1 in
+ /*) PATH "${1%/}/";;
+ *) PATH "${PATH_INFO%/*}/${1%/}/";;
+ esac
+}
+
+has_tags() {
+ # true if PAGE is tagges with all TAGS
+ local page="$(page_abs "$1")"; shift 1;
+ local tdir="$_DATA/tags" tag dt df
+
+ for tag in "$@"; do
+ tag="$(printf %s "$tag" |awk '{ sub(/^[#!]/, ""); gsub(/[^[:alnum:]]/, "_"); print toupper($0); }')"
+ dt="$(DBM "${tdir}/${tag}" get "${page}")" || return 1
+ df="$(stat -c %Y "$(mdfile "$page")")" || return 1
+ if [ "$df" -gt "$dt" ]; then
+ DBM "${tdir}/${tag}" remove "${page}"
+ return 1
+ fi
+ done
+ return 0
+}
+
+has_tag() {
+ # true if PAGE is tagged with any of TAGS
+ local page="$(page_abs "$1")"; shift 1;
+ local tdir="$_DATA/tags" tag dt df
+
+ for tag in "$@"; do
+ tag="$(printf %s "$tag" |awk '{ sub(/^[#!]/, ""); gsub(/[^[:alnum:]]/, "_"); print toupper($0); }')"
+ dt="$(DBM "${tdir}/${tag}" get "${page}")" || continue
+ df="$(stat -c %Y "$(mdfile "$page")")" || return 1
+ if [ "$df" -gt "$dt" ]; then
+ DBM "${tdir}/${tag}" remove "${page}"
+ continue
+ else
+ return 0
+ fi
+ done
+ return 1
+}
+
+page_title() {
+ local mdfile PAGE_TITLE
+
+ if ! mdfile="$(mdfile "${1:-${PATH_INFO%/*}}")"; then
+ return 1
+ fi
+ PAGE_TITLE="$(
+ sed -nE '
+ s;^%title[ \t]+([[:graph:]][[:print:]]+)\r?$;\1;p; tQ;
+ b; :Q q;
+ ' "$mdfile"
+ )"
+ [ ! "${PAGE_TITLE}" ] && PAGE_TITLE="$(
+ MD_MACROS="" md <"$mdfile" \
+ | sed -nE '
+ s;^.*<h1[^>]*>(.*>)?([^<]+)(<.*)?</h1>.*$;\2;p; tQ;
+ s;^.*<h2[^>]*>(.*>)?([^<]+)(<.*)?</h2>.*$;\2;p; tQ;
+ b; :Q q;
+ '
+ )"
+ if [ ! "${PAGE_TITLE}" ]; then
+ PAGE_TITLE="${1:-${PATH_INFO%/*}}"
+ PAGE_TITLE="${PAGE_TITLE##*/}"
+ fi
+ printf %s\\n "$PAGE_TITLE"
+}