#!/bin/sh
+# 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.
+
+export REV_PAGES=${REV_PAGES:-true}
+export REV_ATTACHMENTS=${REV_ATTACHMENTS:-false}
+export WIKI_THEME="${WIKI_THEME:-default}"
+export SEARCH_INDEX="${SEARCH_INDEX:-true}"
+export USER_AUTH="${USER_AUTH:-default}"
+
. "${_EXEC:-${0%/*}}/cgilite/cgilite.sh"
-set -- nocookie
. "${_EXEC}/cgilite/session.sh"
-. "${_EXEC}/cgilite/file.sh"
-. "${_EXEC}/cgilite/users.sh"
+. "${_EXEC}/auth/${USER_AUTH}.sh"
+. "${_EXEC}/tools.sh"
+. "${_EXEC}/acl.sh"
+. "${_EXEC}/themes/${WIKI_THEME}.sh"
-. "${_EXEC}/themes/default.sh"
+which git >/dev/null || REV_PAGES=false
+[ "$REV_PAGES" != true ] && REV_ATTACHMENTS=false
-CACHE_AGE=${CACHE_AGE:-1800}
-export MD_MACROS="$_EXEC/macros"
-export MD_HTML="${MD_HTML:-false}"
-
-if [ "$(which awk)" ]; then
- md() { awk -f "$_EXEC/md_macros.awk" -f "$_EXEC/cgilite/markdown.awk"; }
-elif [ "$(which busybox)" ]; then
- md() { busybox awk -f "$_EXEC/md_macros.awk" -f "$_EXEC/cgilite/markdown.awk"; }
-else
- md() { cat; }
-fi
+# Renew session cookie, only if cookie already set
+[ "$(COOKIE session)" ] && SESSION_COOKIE
wiki_text() {
# Print source text of a wiki page
# Get page from data or underlay dir
- local page="$(PATH "$1")"
+ local page="$(PATH "$1")" mdfile
- if [ -f "$_DATA/pages/$page/#page.md" ]; then
- cat -- "$_DATA/pages/$page/#page.md"
- elif [ -f "$_EXEC/pages/$page/#page.md" ]; then
- cat -- "$_EXEC/pages/$page/#page.md"
- else
- return 1
- fi
+ mdfile="$(mdfile "$page")" || return 4
+ acl_read "$page" || return 3
+ cat -- "$mdfile"
}
-wiki() {
- # Print content of a wiki page
- # Get page from data or underlay dir, handle caching
- local page="$(PATH "$1")" md cache cachetime
+if [ "$REV_PAGES" = true -a ! -f "$_DATA/.gitignore" ]; then
+ cat >"$_DATA/.gitignore" <<-EOF
+ users.db
+ serverkey
+ tags/
+ index/
+ **/#cache/
+ **/#page.md.lock
+ **/#page.*.cache
+ **/#page.*.cache.*
+ **/#page:*.*.cache
+ **/#page:*.*.cache.*
+ **/#index.flag
+ EOF
+ [ "$REV_ATTACHMENTS" != true ] \
+ && printf '**/#attachments/\n' >>"$_DATA/.gitignore"
+ git init "$_DATA"
+ git -C "$_DATA" add .gitignore
+ printf '%s\n' "" "[user]" \
+ "email = \"shellwiki@localhost\"" \
+ "name = \"Shellwiki\"" \
+ >>"$_DATA/.git/config"
+ git -C "$_DATA" commit -m 'initialization' -- .gitignore
+fi 1>&2
- cache="$_DATA/pages/$page/#page.cache"
- if [ -f "$_DATA/pages/$page/#page.md" ]; then
- md="$_DATA/pages/$page/#page.md"
- elif [ -f "$_EXEC/pages/$page/#page.md" ]; then
- md="$_EXEC/pages/$page/#page.md"
- else
- return 1
- fi
-
- cachetime="$(stat -c %Y -- "$md" "$cache" 2>/dev/null)"
-
- if [ "${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/$page/";
- md <"$md" |tee -- "${cache}.$$"
- )
- mv -- "${cache}.$$" "${cache}"
- fi
-}
-
-attachment() {
- local file="$(PATH "$1")"
-
- # TODO: deliver downscaled images, etc.
- if [ -f "$_DATA/pages/${file%/*}/#attachments/${file#*/}" ]; then
- FILE "$_DATA/pages/${file%/*}/#attachments/${file#*/}"
- elif [ -f "$_EXEC/pages/${file%/*}/#attachments/${file#*/}" ]; then
- FILE "$_EXEC/pages/${file%/*}/#attachments/${file#*/}"
- elif [ -d "$_DATA/pages/${file}/" -o -d "$_EXEC/pages/${file}" ]; then
- # path looks like a rogue page name (without trailing slash), so redirect
- REDIRECT "$_BASE/${file}/"
- else
- return 1
- fi
-}
-
-. "$_EXEC/page_edit.sh"
-
-case "${PATH_INFO}" in
- /"[.]"/*)
- FILE "${_EXEC}/${PATH_INFO#/\[.\]}"
- ;;
- */)
- if [ -f "$_DATA/pages/$PATH_INFO/#page.md" \
- -o -f "$_EXEC/pages/$PATH_INFO/#page.md" ]; then
- theme_page "${PATH_INFO}"
- else
- theme_404
- fi
- ;;
- */"[login]")
- [ "$USER_NAME" ] \
- && REDIRECT "./" \
- || theme_login
- ;;
- */"[register]")
- theme_register
- ;;
- */"[attachment]"/*)
- : # TODO: Original attachment file
- ;;
- */"#"*)
- : # TODO: Invalid page name
- ;;
- *)
- attachment "${PATH_INFO}"
- ;;
-esac
+for handler in "$_EXEC"/handlers/*; do
+ . "$handler" && break
+done
+if [ $? != 0 ]; then
+ export ERROR_MSG="The presented URL schema cannot be handled"
+ theme_error 400
+fi
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