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|
#!/bin/sh
set -e
DEFAULT_AUTH_TYPE=ed25519
DEFAULT_UPSTREAM=d@cryptonomic.net:public_git/selfpublish.sh
force()
{
[ "$FORCE" ]
}
in_group()
{
local g
for g in $(groups)
do
[ "$g" = "$1" ] && return
done
false
}
as_root()
{
if [ "$(id -u)" = 0 ]
then
"$@"
elif sudo -n true 2>/dev/null || in_group sudo
then
sudo "$@"
else
su -c "$*"
fi
}
apt_install()
{
as_root apt-get install "$@"
}
dpkg_install()
{
case "$(lsb_release -cs)" in
buster)
echo 'deb http://httpredir.debian.org/debian buster-backports main' |
as_root tee -a /etc/apt/sources.list.d/buster-backports.list >/dev/null ;;
esac
as_root $SHELL -c "set -$- +e; dpkg -i $*; apt-get -t buster-backports -f install"
}
dependencies()
{
cat <<EOF
apache2 (>= 2.4.46)
basez
cgit
curl
fortune-mod
fortunes-min
gnupg (>= 2.2.14)
libssl1.1 (>= 1.1.1d)
openssl
ssh
EOF
}
fmt_dependencies()
{
local outline=
while read inline
do
if [ ! "$outline" ]
then
outline="Depends: $inline"
elif [ $((${#outline} + ${#inline})) -ge 60 ]
then
printf '%s,\n' "$outline"
outline=" $inline"
else
outline="$outline, $inline"
fi
done
if [ "$outline" ]
then
printf '%s\n' "$outline"
fi
}
control_file_file()
{
printf 'File: %s %s\n' "$1" "$2"
sed -e ' s/^[.]/../; s/^$/./; s/^/ /; '
}
control_file_file_check()
{
local prefix RESULT=0 header= data o
tempout=$(mktemp)
while [ "$header" ] || read header
do
set -- $header
case "$1" in
File:)
case "$2" in
/*) ;;
*) return 1 ;;
esac
:> "$tempout"
while IFS= read -r data
do
case "$data" in
' .'*)
printf '%s\n' "${data# .}" >> "$tempout"
continue
;;
' '*)
printf '%s\n' "${data# }" >> "$tempout"
continue
;;
esac
if ! diff -q "$2" "$tempout"
then
RESULT=1
install -v -m "$3" "$tempout" -T "$2"
fi
header=$data
continue 2
done
;;
esac
header=
done
return $RESULT
}
SELF_VERSION='0.1'
SELF_EXECUTABLE=$(realpath "$0")
control_file()
{
cat <<EOF
Version: ${SELF_VERSION}
Package: selfpublish-dot-sh
Description: selfpublish.sh dependency package
This package depends on the dependencies of the
selfpublish.sh script, and is installed by that
script to self-satisfy those dependencies.
EOF
dependencies | fmt_dependencies
# cat <<EOF
# File: /usr/share/doc/selfpublish-dot-sh/README.Debian 644
# This gets overwritten :(
# EOF
control_file_file /usr/lib/cryptonomic/cryptonomic-gpg 755 <<'EOF'
#!/bin/sh
process_colons()
{
local callback="$*" IFS process_colons_break=
set --
while read LINE
do
IFS=:
set -- $LINE
unset IFS
case "$1" in
sec|pub) CURRENT_KEY=$LINE ;;
fpr) CURRENT_FPR=${10} ;;
esac
if [ "$CURRENT_KEY" -a "$CURRENT_FPR" ]
then
$callback "$@"
fi
if [ "$process_colons_break" ]
then
break
fi
done
}
is_secret_key()
{
case "$CURRENT_KEY" in
sec:*) true ;;
*) false ;;
esac
}
match_domain()
{
domain=$1
action=$2
shift 2
case "$1:$2:${10%>}" in
uid:u:*.${domain}) $action "$@";;
esac
}
match_first_secret_key()
{
action=$1
shift
is_secret_key || return
case "$1:$2" in
fpr:*) $action "$@"
process_colons_break=y
;;
esac
}
show_fpr()
{
echo ${CURRENT_FPR}
}
find_secret_key_with_domain()
{
process_colons match_domain "$1" show_fpr
}
force() { [ "$FORCE" ]; }
verbose()
{
if [ "$VERBOSE" ]
then
"$@"
fi
}
get_home()
{
[ "$1" ] && getent passwd "$1" | (IFS=: read _ _ _ _ _ h _; echo $h)
}
GPG()
{
set -- gpg "$@"
if [ "$SUDO_USER" ]
then
su "$SUDO_USER" -c "$(bash -c 'printf "%q " "$@"' bash "$@")"
else
"$@"
fi
}
set -e
# 1. GET CRYPTONOMIC UID
cryptonomic_hostname=$(cryptonomic hostname)
[ "$cryptonomic_hostname" ]
if [ "$SUDO_USER" ]
then
username=$SUDO_USER
else
username=$(id -un)
fi
[ "$username" ]
uid=${username}@${cryptonomic_hostname}
# 2. CHECK IF EXISTING SECRET KEY
t=$(GPG -K --with-colons)
if [ "$t" ]
then
# 3. CHECK IF EXISTING KEY HAS UID
if GPG -K --with-colons | find_secret_key_with_domain "${cryptonomic_hostname#*.}" | grep -q . && ! force
then
exit
fi
# 4. ADD UID TO EXISTING KEY
gpg_default_key=$(GPG -K --with-colons | process_colons match_first_secret_key show_fpr)
[ "$gpg_default_key" ]
GPG --quick-add-uid "$gpg_default_key" "$uid" || force
verbose GPG -K "$gpg_default_key"
exit 0
else
# 2.5 GENERATE NEW KEY
GPG --batch --passphrase '' --quick-generate-key "$uid"
verbose GPG -K "$uid"
exit 0
fi
EOF
control_file_file /usr/bin/cryptonomic 755 <<'EOF'
#!/bin/dash
set -e
DOMAIN=cryptonomic.net
DEFAULT_AUTH_TYPE=ed25519
HASH_TYPE=2
die() { echo "$0: Error: $*" >&2; exit 1; }
b16_to_b32()
{
printf %s "$1" | basez -x -d | basez -j -l | tr -d =
}
get_domain()
{
get_sshfp "$1"
domain=$(printf %s.%s.%s "$sshfp_b32" "$DEFAULT_AUTH_TYPE" "$DOMAIN" | tail -c64)
}
get_sshfp()
{
[ -f "$1" ] || return
sshfp_b16=$(ssh-keygen -r . -f "$1" | sed -ne 's/^. IN SSHFP [0-9]* '"$HASH_TYPE"' //p') &&
[ "$sshfp_b16" ] || die "could not determine ssh client fingerprint"
sshfp_b32=$(b16_to_b32 "$sshfp_b16")
}
KEY_FILE=/etc/ssh/ssh_host_${DEFAULT_AUTH_TYPE}_key
if [ $# = 0 -o "$1" = hostname ]
then
get_domain "${KEY_FILE}".pub || exit
printf '%s\n' "$domain"
elif [ "$1" = dyndns ]
then
set -- ssh -i "$KEY_FILE" dyndns@"$DOMAIN" "$(hostname)"
if [ -r "$KEY_FILE" ]
then
"$@"
elif sudo -n true 2>/dev/null || groups | grep '\bsudo\b'
then
sudo -- "$@"
else
su -c "$(bash -c 'printf "%q " "$@"' bash "$@")"
fi
elif [ -f /usr/lib/cryptonomic/cryptonomic-"$1" ]
then
exec /usr/lib/cryptonomic/cryptonomic-"$1" "$@"
else
echo "Usage: $0 [dyndns|hostname|gpg]" >&2
exit 1
fi
EOF
control_file_file /usr/bin/selfpublish.sh 755 < "$SELF_EXECUTABLE"
echo
}
control_file_unchanged()
{
(
destdir=$(mktemp -d)
trap 'rm -r "$destdir"' EXIT
[ "$(dpkg-query -f '${Version}' -W selfpublish-dot-sh)" = "${SELF_VERSION}" ] || return
dependencies > want-dependencies
dpkg-query -f '${Depends}\n' -W selfpublish-dot-sh | sed 's/, */\n/g' | sort -u > have-dependencies
diff -q want-dependencies have-dependencies
)
}
equivocate()
{
if dpkg-query -s selfpublish-dot-sh | grep -q '^Status: install ok installed' 2>/dev/null
then
if control_file_unchanged && control_file | control_file_file_check
then
if ! force
then return
fi
fi
fi
which equivs-build >/dev/null 2>&1 || apt_install equivs
(
destdir=$(mktemp -d)
cd "$destdir"
control_file > ./control
equivs-build ./control >&2
DEB=selfpublish-dot-sh_${SELF_VERSION}_all.deb
if ! [ "$NO_APT" ]
then
as_root dpkg -r selfpublish-dot-sh
dpkg_install "$DEB"
install -m0644 "$DEB" "$DEBDEST"
fi
) || exit
}
ssh_keytag_to_path_fragment()
{
case "$1" in
ssh-dss) echo dsa ;;
ecdsa-sha2-nistp256) echo ecdsa ;;
ssh-rsa|ssh-ed25519) echo ${1#ssh-} ;;
*) return 1 ;;
esac
}
path_fragment_to_ssh_keytag()
{
case "$1" in
ssh-dss|ecdsa-sha2-nistp256|ssh-rsa|ssh-ed25519) echo $1;;
dss|rsa|ed25519) echo ssh-$1 ;;
dsa) echo ssh-dss ;;
ecdsa) echo ecdsa-sha2-nistp256 ;;
*) return 1 ;;
esac
}
get_dyndns_domain()
{
fragment=$(ssh_keytag_to_path_fragment "$1") || return
host_keyfile=/etc/ssh/ssh_host_${fragment}_key
user_keyfile=$HOME/.ssh/id_${fragment}
set -- -q dyndns@cryptonomic.net
if [ -r "$host_keyfile" ]
then
set -- ssh -i "$host_keyfile" "$@"
elif in_group sudo
then
set -- sudo ssh -i "$host_keyfile" "$@"
elif [ -r "$user_keyfile" ]
then
set -- ssh -i "$user_keyfile" "$@"
else
set -- ssh "$@"
fi
"$@"
}
enable_apache_modules()
{
local restart=
for MODULE in $APACHE_MODULES
do
if ! [ -e /etc/apache2/mods-enabled/$MODULE.load ] &&
! [ "$MODULE" = cgi -a -e /etc/apache2/mods-enabled/cgid.load ]
then
a2enmod $MODULE >/dev/null
restart=y
fi
done
if [ "$restart" ]
then
systemctl restart apache2
fi
}
site_conf_template()
{
HOSTNAME=$(hostname)
cat <<END
<MDomain $DOMAIN>
MDContactEmail webmaster@$DOMAIN
MDCertificateAgreement accepted
MDRequireHttps temporary
MDMember $HOSTNAME.$DOMAIN
</MDomain>
<VirtualHost *:80>
ServerName $DOMAIN
ServerAlias $DOMAIN.
Redirect / https://$DOMAIN
</VirtualHost>
<VirtualHost *:80>
ServerAlias $HOSTNAME.$DOMAIN
ServerAlias $HOSTNAME.$DOMAIN.
Redirect / https://$HOSTNAME.$DOMAIN
</VirtualHost>
<VirtualHost *:443>
ServerName $HOSTNAME.$DOMAIN
ServerAlias $DOMAIN
ServerAdmin webmaster@$HOSTNAME.$DOMAIN
SSLEngine on
ErrorLog /srv/$DOMAIN/logs/error.log
CustomLog /srv/$DOMAIN/logs/access.log combined
<Location "/server-status">
SetHandler server-status
</Location>
DocumentRoot /srv/$DOMAIN/public_html/
<Directory /srv/$DOMAIN/public_html>
Options Indexes FollowSymLinks MultiViews Includes
IndexOrderDefault Descending Date
IndexOptions +IgnoreCase FancyIndexing
IndexOptions +HTMLTable SuppressDescription SuppressHTMLPreamble
IndexStyleSheet /css/autoindex.css
IndexIgnore /unindexed /HEADER.html /css /images
# Using an absolute url for header
HeaderName /HEADER.html
XBitHack on
AllowOverride None
Require all granted
</Directory>
ScriptAlias /git "/usr/lib/cgit/cgit.cgi/"
Alias /cgit-css "/usr/share/cgit/"
</VirtualHost>
END
}
wait_for_certificate_issuance()
{
local f state reloaded_apache=
f=/etc/apache2/md/domains/"$1"/md.json
local set=$-
set +x
echo -n Waiting for certificate... >&2
while true
do
if [ -e "$f" ] && state=$(sed -ne 's/^ *"state": *\([0-9]\+\),/\1/p' "$f")
then
case "$state" in
1)
if ! [ "$reloaded_apache" ]
then
as_root systemctl reload apache2
reloaded_apache=y
fi
;;
2)
set -$set
echo ' Done waiting for certificate.' >&2
return
;;
esac
fi
sleep 1
echo -n . >&2
done
}
install_apache_vhost()
{
if [ -e "$SITE_CONF" ] && ! force
then
return
fi
for DIR in $APACHE_SITE_DIRS
do
mkdir -p "$SITE_DIR"/"$DIR"
done
local tmp
tmp=$(mktemp "$SITE_CONF".XXXXXX)
site_conf_template > "$tmp"
mv -T "$tmp" "$SITE_CONF" || { rm -f "$tmp"; false; }
a2ensite "$DOMAIN" >/dev/null
}
install_self_to_site()
{
SOURCE_BASENAME=${0##*/}
[ -d "$SITE_DIR"/public_html ] || return
dst=$SITE_DIR/public_html/$SOURCE_BASENAME
src=$0
[ -e "$src" ] || return 0
if [ ! "$src" -ef "$dst" ]
then
cp -Tuv "$src" "$dst" >&2
cp -Tuv "$src" "$dst".txt >&2
fi
DEB="selfpublish-dot-sh_${SELF_VERSION}_all.deb"
if [ -e "$DEB" ]
then
cp -Tuv "$DEB" "$SITE_DIR/public_html/$DEB"
fi
}
get_upstream()
{
if [ -e selfpublish.sh -a -e .git ]
then
UPSTREAM=$(git config --get branch.master.remote 2>/dev/null)
case "$UPSTREAM" in
*:*) ;;
*) UPSTREAM=$(git remote get-url "$UPSTREAM") ;;
esac
fi
UPSTREAM=${UPSTREAM:-$DEFAULT_UPSTREAM}
[ "$UPSTREAM" ]
}
write_cgit_config()
{
get_upstream
cgit_scan_dir=/srv/public_git
if ! [ -e "$cgit_scan_dir"/selfpublish.sh ]
then
mkdir -p "$cgit_scan_dir"
(cd "$cgit_scan_dir"
git clone --bare "$UPSTREAM" selfpublish.sh)
else
git push --all "$cgit_scan_dir"/selfpublish.sh
fi
line="scan-path=$cgit_scan_dir"
grep -qxF "$line" /etc/cgitrc || printf '%s\n' "$line" >> /etc/cgitrc
}
install_tls_public_certificate()
{
local src=/etc/apache2/md/domains/"$DOMAIN"/pubcert.pem dst="$SITE_DIR"/public_html/pubcert.pem
if [ "$src" -nt "$dst" ]
then
cp -Tuv /etc/apache2/md/domains/"$DOMAIN"/pubcert.pem "$SITE_DIR"/public_html/pubcert.pem
openssl x509 -in "$dst" -noout -text > "$dst".txt
fi
}
get_home()
{
[ "$1" ] && getent passwd "$1" | (IFS=: read _ _ _ _ _ h _ && echo $h)
}
process_key()
{
local uid="$1" domain="${1#*@}" destdir="$2" tdir
while read keyid some_uid
do
[ "$some_uid" = "$uid" ] || continue
tempdir=$(mktemp -d)
/usr/lib/gnupg/gpg-wks-client --install-key -C "$tempdir" "$keyid" "$uid" 2>/dev/null
mkdir -p "$destdir"
mv "$tempdir"/"$domain"/hu/* -t "$destdir"
rm -rf "$tempdir"
done
}
install_gpg_rings()
{
(
domain=$DOMAIN
dest=/srv/$domain/public_html/.well-known/openpgpkey/hu
uid=${SUDO_USER:-$(id -un)}@$domain
if [ "$SUDO_USER" -a ! "$GNUPGHOME" ]
then
GNUPGHOME=$(get_home "$SUDO_USER")/.gnupg
export GNUPGHOME
fi
[ -d "$dest" ] || mkdir -p "$dest"
gpg --list-options show-only-fpr-mbox -k "$uid" 2>&- | process_key "$uid" "$dest"
find /srv/"$DOMAIN"/public_html/.well-known/openpgpkey/ -type d -exec chmod 755 '{}' ';'
ln -sfT .well-known/openpgpkey/hu /srv/"$domain"/public_html/openpgpkey
)
}
configure_apache_vhost()
{
enable_apache_modules
install_self_to_site
install_header_to_site
install_tls_public_certificate
install_gpg_rings
write_cgit_config
}
install_header_to_site()
{
cat > "$SITE_DIR"/public_html/HEADER.html <<EOF
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<title>
selfpublish.sh at <!--#echo var="SERVER_NAME" -->
</title>
<link rel="stylesheet" href="/css/autoindex.css" type="text/css">
<style type=text/css>
td { padding: 10px; }
td.cmds {border: 1px solid;}
#toggle_expand[type="checkbox"]:checked ~ * .expand {display: "";}
#toggle_expand[type="checkbox"]:not(:checked) ~ * .expand {display: none;}
#main {
text-align:left;
margin-top: 10%;
margin-bottom: 10%;
font-size: 15px;
line-height: 2em;
border-spacing: 10px;
}
</style>
</head>
<body>
<input type=checkbox id=toggle_expand name=toggle_expand style='visibility: hidden' />
<table id=main>
<tr>
<td colspan=2 style='border: 2px solid; padding: 18px;'>
<strong style='font-size: 20px'>selfpublish.sh</strong>
<tr>
<td>
<td style='border: 1px solid; padding: 12px; text-align: center;'>
<label for=toggle_expand>
<strong>Install</strong>
</label>
<tr>
<td>
<td>
<td>
<td class=cmds> curl -OR https://<!--#echo var="SERVER_NAME" -->/selfpublish.sh && sudo bash selfpublish.sh
<tr>
<td>
<td style='border: 1px solid; padding: 12px; text-align: center;'>
<label for=toggle_expand>
<strong>Requirements</strong>
</label>
<tr class=expand>
<td>
<td>
<td>Distribution
<td style='border: 1px solid; padding: 12px; text-align: center;'> <a href="https://debian.org">Debian</a> GNU/Linux
<tr class=expand>
<td>
<td>
<td>Version
<td style='border: 1px solid; padding: 12px; text-align: center;'> <code>buster</code> or later
<tr>
<td>
<td style='border: 1px solid; padding: 12px; text-align: center;'>
<label for=toggle_expand>
<strong>Browse source</strong>
</label>
<tr class=expand>
<td>
<td>
<td style='text-align: right;'>Local repository:
<td class=cmds>
<a href="git/selfpublish.sh">
https://<!--#echo var="SERVER_NAME" -->/git/selfpublish.sh
</a>
<tr class=expand>
<td>
<td>
<td style='text-align: right;'>Upstream repository:
<td class=cmds>
<a href="https://git.cryptonomic.net/selfpublish.sh">
https://git.cryptonomic.net/selfpublish.sh/
</a>
<tr class=expand>
<td>
<td>
<td style='text-align: right;'>Download single file:
<td class=cmds>
<a href="selfpublish.sh"> https://<!--#echo var="SERVER_NAME" -->/selfpublish.sh</a>
<tr>
<td>
<td style='border: 1px solid; padding: 12px; text-align: center;'>
<label for=toggle_expand><strong>Develop (<a href="https://git-scm.com/">git</a>)</strong></label>
<tr class=expand>
<td>
<td>
<td style='text-align: right'>Clone local repository:
<td class=cmds>
git clone /srv/<!--#echo var="SERVER_NAME"-->/public_git/selfpublish.sh/ && cd selfpublish.sh && make
<tr class=expand>
<td>
<td>
<td style='text-align: right'>Share local repository (read-only):
<td class=cmds>
git clone https://<!--#echo var="SERVER_NAME"-->/git/selfpublish.sh && cd selfpublish.sh && make
<tr class=expand>
<td>
<td>
<td style='text-align: right;'>To push changes upstream:
<td class=cmds>
git clone d@cryptonomic.net:public_git/selfpublish.sh<br>
</tr>
<tr class=expand>
<td>
<td>
<td style='text-align: right;'>Local git repository:
<td class=cmds>
git clone https://<!--#echo var="SERVER_NAME"-->/git/selfpublish.sh<br>
</tr>
</table>
<pre style=font-size:1.3em>
Fortunately,
<!--#exec cmd="/usr/games/fortune |sed 's/^/ /'" -->
</pre>
EOF
chmod +x "$SITE_DIR"/public_html/HEADER.html
}
check_tls()
{
curl -s -S -I https://"$1" >/dev/null
}
DEBDEST=$(realpath .)
[ "$NO_EQUIVS" ] || equivocate >&2
APACHE_MODULES='status md rewrite ssl include cgi'
APACHE_SITE_DIRS='logs public_html'
AUTH_TYPE=${1:-$DEFAULT_AUTH_TYPE}
AUTH_KEYTAG=$(path_fragment_to_ssh_keytag "$AUTH_TYPE")
DYNDNS=$(get_dyndns_domain "$AUTH_KEYTAG")
DOMAIN=${DYNDNS%% *}
SITE_DIR=/srv/$DOMAIN
SITE_CONF=/etc/apache2/sites-available/$DOMAIN.conf
case "$DOMAIN" in
*."$AUTH_KEYTAG".cryptonomic.net) ;;
*."$AUTH_TYPE".cryptonomic.net) ;;
*)
printf 'Error: %s\n' "Unexpected domain returned by server: $DOMAIN (AUTH_TYPE=$AUTH_TYPE)"
exit 1 ;;
esac
check_tls "$DOMAIN"
tls_result=$?
install_apache_vhost
configure_apache_vhost
if [ $tls_result != 0 ] || force
then
systemctl restart apache2
wait_for_certificate_issuance "$DOMAIN"
systemctl reload apache2 || systemctl restart apache2
else
systemctl reload apache2 || systemctl restart apache2
fi
check_tls "$DOMAIN"
printf '%s\n' "https://$DOMAIN/selfpublish.sh"
|