+#!/bin/zsh
+
+# Copyright 2014 - 2017 Paul Hänsch
+#
+# This file is part of Serve0.
+#
+# Serve0 is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Serve0 is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with Serve0. If not, see <http://www.gnu.org/licenses/>.
+
+. $_EXEC/pages/common.sh
+
+LF='
+'
+directory="$(invalidate "${_GET[d]}" '(.*/)?\.\.(/.*)?|' /)"
+[ -d "${treeroot}/${directory#/}/.index" ] && indexed=true || indexed=false
+filters="${_GET[f]}"
+debug "FILTERS: $filters"
+
+present_filter(){
+ printf %s\\n "$*" \
+ | sed -r 's;(^|!|\^|\|)([^!\^\|:]+:);\1;g;s;\^;\n;g' \
+ | sort -r \
+ | sed -r '$q;s;$; \&\; ;g'
+}
+
+if [ -n "$search" ]; then
+ TITLE="$search by $order"
+elif [ -n $filter ]; then
+ TITLE="$(present_filter "$filter") by $order"
+else
+ TITLE="List by $order"
+fi
+
+category_selected(){
+ cat="${1}:"
+ filter="$2"
+ [ "$cat" = "none:" ] && cat=''
+
+ printf %s "$taglist_filter" \
+ | sed -r 's;^('"$filter"')$;1 &;;t;s;^;0 ;' \
+ | sed -rn 's;^(0|1) '"$cat"'([^:]+)$;\1 \2;p' \
+ | sed 's;^0 ;<option>;;s;^1 ;<option selected>;;s;$;</option>;'
+}
+
+_printVideo(){
+ info="$1"
+ cache="${info%/*}/.index/${info##*/}.cache"
+ meta="${info%/*}/.index/${info##*/}.meta"
+
+ if [ "$cache" -ont "$meta" ]; then
+ cat "$cache"
+ else
+ videofile="$info"
+ thumb="${info%/*}/.index/${info##*/}.jpg"
+ [ -f "$thumb" ] || genthumb "$videofile" "$thumb"
+ [ -f "$meta" ] || genmeta "$videofile" "$meta"
+
+ { read -r length width height filename
+ read -r tags
+ } <"$meta"
+ length=$(validate "$length" '[0-9]+' 0)
+ width=$(validate "$width" '[0-9]+' 0)
+ height=$(validate "$height" '[0-9]+' 0)
+
+ video="$(urlsafe "$info")"
+ thumb="$(urlsafe "$directory/.index/${info##*/}.jpg")"
+ linkinfo="$(urlsafe "${directory%/}/${info##*/}")"
+ htmlinfo="$(htmlsafe "${info##*/}")"
+ attrinfo="$(attribsafe "$info")"
+
+ minutes="$(printf "%d:%02d" $(($length / 60)) $(($length % 60)) )"
+
+ tee "$cache" <<VIDEOend
+ <li id="$attrinfo" class="thumb">
+ <button class="watchlink" name="${linkinfo}" formaction="?action=watch&l=${linkinfo}">
+ <img src="$thumb" alt="Preview not yet available">
+ </button>
+ <h2><a href="?action=watch&l=${linkinfo}">${htmlinfo}</a></h2>
+
+ <input type="checkbox" name="tagsel" value="${htmlinfo}">
+ <span class="info property">${minutes}min</span>
+ <span class="info property">${width}x${height}</span>
+ $(printf %s "$tags" |sed -r 's:\|*([^|]+)\|*: <span class="info tag">\1</span>:g')
+ </li>
+VIDEOend
+ fi
+}
+
+genlist(){
+ case "$order" in
+ Date) find "${_DATA}"/videos/ -maxdepth 1 -mindepth 1 -printf '%T@ %f\n' |sort -r |cut -d\ -f2- |egrep -i "$file_pattern";;
+ Length) sed -sn 1p "${_DATA}"/meta/*.meta |sort -n |sed -r 's;^[0-9\t]+\t;;';;
+ Name) find "${_DATA}"/videos/ -maxdepth 1 -mindepth 1 -printf '%f\n' |sort |egrep -i "$file_pattern";;
+ esac
+}
+
+selectionlist() {
+ cachebase="?o=${order}&s=${search//\//}&f=${filter//\//}"
+ cache="${_DATA}/cache/${cachebase}"
+ if [ -s "$cache" -a "$cache" -nt ${_DATA}/videos -a "$cache" -nt ${_DATA}/meta ]; then
+ cat "$cache"
+ else
+ filterex="s;^([0-9]+\t){3}(.+)\n.*$;\2;p"
+ printf '%s\n' "$filter" |tr '^' '\n' \
+ | sed -r 's;[]\/\(\)\\\^\$\?\.\+\*\;\[\{\}];\\\\&;g' \
+ | while read each; do
+ [ "${each:0:1}" = '!' ] && filterex="/^[^\n]+\n(.*\|)?(${each#?})(\|.*)?$/d;{${filterex}}" \
+ || filterex="/^[^\n]+\n(.*\|)?(${each})(\|.*)?$/{${filterex}}"
+ done
+
+ genlist \
+ | if [ -n "$search" ] ; then
+ debug "Applying search: ${search}"
+ xargs -d '\n' printf "${_DATA}/meta/%s.meta\n" \
+ | xargs -d '\n' egrep -sil "$search" \
+ | sed -r 's;^.*/;;;s;\.meta$;;'
+ elif [ -n "$filter" ]; then
+ debug "Applying filters: ${filter} ++ ${filterex}"
+ xargs -d '\n' printf "${_DATA}/meta/%s.meta\n" \
+ | xargs -d '\n' sed -srn ":a;N;2!ba;{${filterex}}"
+ else
+ debug "No search or filtering"
+ cat
+ fi \
+ | tee "$cache"
+ fi
+}
+
+thumblist() {
+ selectionlist \
+ | sed -n "$page,$(($page + $pagesize - 1))p" \
+ | while read line; do
+ _printVideo "$line"
+ done
+}
+
+pagecount() {
+ printf "$(( $(selectionlist | wc -l) / $pagesize + 1 ))"
+}
+
+filelist(){
+ debug "Filelist with dir = $directory"
+
+ [ -n "${directory#/}" ] && printf %s "<a class='file directory' href='?p=browse&d=$(urlsafe "${directory%/*}")'>..</a>"
+
+ find -L "${treeroot%/}/${directory#/}" -mindepth 1 -maxdepth 1 -type d \
+ | grep -v '.index' \
+ | sort \
+ | while read dir; do
+ name="${dir##*/}"
+ printf %s "<a class='file directory' href='?p=browse&d=$(urlsafe "${directory%/}/$name")'>$(htmlsafe "$name")</a>"
+ done
+
+ find -L "${treeroot%/}/${directory#/}" -mindepth 1 -maxdepth 1 -type f \
+ | grep -E "$file_pattern" \
+ | sort \
+ | while read -r file; do
+ name="${file##*/}"
+ $indexed && _printVideo "$file" \
+ || printf '<a class="file video" href="?action=watch&l=%s">%s</a>' \
+ "$(urlsafe "${directory%/}/$name")" "$(htmlsafe "$name")"
+ done
+
+ find -L "${treeroot%/}/${directory#/}" -mindepth 1 -maxdepth 1 -type f \
+ | grep -vE "$file_pattern" \
+ | sort \
+ | while read -r file; do
+ name="${file##*/}"
+ printf '<span class="file plain">%s</span>' "$(htmlsafe "$name")"
+ done
+}
+