152 lines
3.9 KiB
Bash
Executable File
152 lines
3.9 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
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# 2020 Dennis Camera (dennis.camera at ssrq-sds-fds.ch)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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case $("${__explorer:?}/os")
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in
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(netbsd)
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postgres_user='pgsql'
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;;
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(openbsd)
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postgres_user='_postgresql'
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;;
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(*)
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postgres_user='postgres'
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;;
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esac
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rolename=${__object_id:?}
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psql_query() {
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su -l "${postgres_user}" -c "$(
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printf "psql -q -F '\034' -R '\036' -wAc '%s'" \
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"$(printf %s "$*" | sed "s/'/'\\\\''/g")"
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)"
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}
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password_check_login() (
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PGPASSWORD=$(cat "${__object:?}/parameter/password"; printf .)
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PGPASSWORD=${PGPASSWORD%?.}
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export PGPASSWORD
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psql -q -w -h localhost -U "${rolename}" template1 -c '\q' >/dev/null 2>&1
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)
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role_properties=$(
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psql_query "SELECT * FROM pg_roles WHERE rolname = '${rolename}'" \
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| awk '
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BEGIN { RS = "\036"; FS = "\034" }
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/^\([0-9]+ rows?\)/ { exit }
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NR == 1 { for (i = 1; i <= NF; i++) cols[i] = $i; next }
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NR == 2 { for (i = 1; i <= NF; i++) printf "%s=%s\n", cols[i], $i }
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'
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)
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if test -n "${role_properties}"
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then
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# Check if the user's properties match the parameters
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for prop in login createdb createrole superuser
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do
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bool_should=$(test -f "${__object:?}/parameter/${prop}" && echo 't' || echo 'f')
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bool_is=$(
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printf '%s\n' "${role_properties}" |
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awk -F '=' -v key="${prop}" '
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BEGIN {
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if (key == "login")
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key = "canlogin"
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else if (key == "superuser")
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key = "super"
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key = "rol" key
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}
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$1 == key {
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sub(/^[^=]*=/, "")
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print
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}
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'
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)
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test "${bool_is}" = "${bool_should}" || {
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state='different properties'
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}
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done
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# Check password
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passwd_stored=$(
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psql_query "SELECT rolpassword FROM pg_authid WHERE rolname = '${rolename}'" \
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| awk 'BEGIN { RS = "\036" } NR == 2'
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printf .
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)
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passwd_stored=${passwd_stored%?.}
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if test -f "${__object:?}/parameter/password"
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then
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passwd_should=$(cat "${__object:?}/parameter/password"; printf .)
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fi
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passwd_should=${passwd_should%?.}
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if test -z "${passwd_stored}"
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then
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test -z "${passwd_should}" || state="${state:-different} password"
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elif expr "${passwd_stored}" : 'SCRAM-SHA-256\$.*$' >/dev/null
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then
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# SCRAM-SHA-256 "encrypted" password
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# NOTE: There is currently no easy way to check SCRAM passwords without
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# logging in
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password_check_login || state="${state:-different} password"
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elif expr "${passwd_stored}" : 'md5[0-9a-f]\{32\}$' >/dev/null
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then
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# MD5 "encrypted" password
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if command -v md5sum >/dev/null 2>&1
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then
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should_md5=$(
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printf '%s%s' "${passwd_should}" "${rolename}" \
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| md5sum - | sed -e 's/[^0-9a-f]*$//')
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elif command -v gmd5sum >/dev/null 2>&1
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then
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should_md5=$(
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printf '%s%s' "${passwd_should}" "${rolename}" \
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| gmd5sum - | sed -e 's/[^0-9a-f]*$//')
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elif command -v openssl >/dev/null 2>&1
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then
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should_md5=$(
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printf '%s%s' "${passwd_should}" "${rolename}" \
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| openssl dgst -md5 | sed 's/^.* //')
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fi
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if test -n "${should_md5}"
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then
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test "${passwd_stored}" = "md5${should_md5}" \
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|| state="${state:-different} password"
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else
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password_check_login || state="${state:-different} password"
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fi
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else
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# unencrypted password (unsupported since PostgreSQL 10)
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test "${passwd_stored}" = "${passwd_should}" \
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|| state="${state:-different} password"
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fi
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test -n "${state}" || state='present'
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else
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state='absent'
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fi
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echo "${state}"
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