118 lines
3.2 KiB
Bash
Executable file
118 lines
3.2 KiB
Bash
Executable file
#!/bin/bash
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# This program is free software: you can redistribute it and/or modify it under the terms of the
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# GNU Affero General Public License as published by the Free Software Foundation, either version 3
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License along with this program.
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# If not, see <https://www.gnu.org/licenses/>.
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source members.sh
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NUMGRP="${#MEMBERS[@]}"
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scriptdir="$(dirname "$0")"
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# Out file
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if [ "$1" = "" ]; then
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out="list.html"
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else
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out="$1"
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fi
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# Temporary file location
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TMPOUT="$(mktemp)"
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# Outputfile for statistics over time
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STATSOUT="$scriptdir/stats.txt"
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DATE="$(date '+%Y-%m-%d %H:%M %Z')"
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# Create head of output page in temp out
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cat "$scriptdir/head.html" > "$TMPOUT"
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printf '<p>Last updated %s</p>\n' "$DATE" >> "$TMPOUT"
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total_ipv4=0
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total_ipv6=0
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try_url() {
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# Use shell redirection to send all output to /dev/null because cURL is noisy at times, even with --silent
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wget -O/dev/null --timeout 3 "$1" "$2" &>/dev/null
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}
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# Begin list of groups
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printf "<table>\n<tr>\n\t<th>Member</th>\n\t<th>IPv4</th>\n\t<th>IPv6</th>\n\t<th>TLS report</th>\n</tr>\n" >> "$TMPOUT"
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for i in "${MEMBERS[@]}"; do
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hostname="$i.user.zeus.gent"
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https="https://$hostname"
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dns_ipv4=false
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dns_ipv6=false
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has_ipv4=false
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has_ipv6=false
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ipv4="<td>no</td>"
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ipv6="<td>no</td>"
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# Fetch DNS records
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dns="$(host "$hostname")"
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if printf '%s' "$dns" | grep -q "has address"; then
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dns_ipv4=true
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fi
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if printf '%s' "$dns" | grep -q "has IPv6 address"; then
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dns_ipv6=true
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fi
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if [ $dns_ipv4 = false -a $dns_ipv6 = false ]; then
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continue
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fi
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# Try site over HTTPS
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if try_url --inet4-only "$https"; then
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((total_ipv4 ++))
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has_ipv4=true
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fi
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if try_url --inet6-only "$https"; then
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((total_ipv6 ++))
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has_ipv6=true
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fi
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ssltest=""
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if [ "$has_ipv4" = true -o "$has_ipv6" = true ]; then
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ssltest="<a href='https://www.ssllabs.com/ssltest/analyze.html?d=$hostname' class='httpstestlink'>analyze</a>"
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fi
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if [ "$has_ipv4" = true ]; then
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ipv4="<td class='success'>yes</td>"
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elif [ "$dns_ipv4" = true ]; then
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ipv4="<td>no HTTPS</td>"
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fi
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if [ "$has_ipv6" = true ]; then
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ipv6="<td class='success'>yes</td>"
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elif [ "$dns_ipv6" = true ]; then
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ipv6="<td>no HTTPS</td>"
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fi
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if [ "$has_ipv4" = true -o "$has_ipv6" = true ]; then
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name="<a href='$https'>$i</a>"
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else
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name="$i"
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fi
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printf '\t<tr><td>%s</td>%s%s<td>%s</td></tr>\n' "$name" "$ipv4" "$ipv6" "$ssltest" >> "$TMPOUT"
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done
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printf '</table>\n' >> "$TMPOUT"
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printf '<p>Members with an IPv4 website: <strong>%s</strong>/%s<br/>Members with an IPv6 website: <strong>%s</strong>/%s</p>\n' "$total_ipv4" "$NUMGRP" "$total_ipv6" "$NUMGRP" >> "$TMPOUT"
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# Create bottom of page
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cat "$scriptdir/foot.html" >> "$TMPOUT"
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# Write statistics to statistics file
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printf '%s\t%s\t%s\n' "$DATE" "$total_ipv4" "$total_ipv6" >> $STATSOUT
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# Move temp output to real output
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mv "$TMPOUT" "$out"
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# vim: set ts=2 sw=2 tw=0 noet :
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