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|
#!/usr/bin/env bash
# -*- Mode: Go -*-
# Copyright (C) 2015 Luke Shumaker <lukeshu@sbcglobal.net>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
requests=$1
printf '//'
printf ' %q' "$0" "$@"
printf '\n// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n'
cat <<EOF | gofmt
package nslcd_server
import (
"fmt"
"io"
"os"
s "syscall"
p "lukeshu.com/git/go/libnslcd.git/proto"
)
var sensitive = "<omitted-from-log>"
// Handle a request to nslcd
func HandleRequest(backend Backend, in io.Reader, out io.Writer, cred s.Ucred) (err error) {
err = nil
defer func() {
if r := recover(); r != nil {
switch r := r.(type) {
case error:
err = r
default:
panic(r)
}
}
}()
handleRequest(backend, in, out, cred)
return
}
func handleRequest(backend Backend, in io.Reader, out io.Writer, cred s.Ucred) {
var version int32
p.Read(in, &version)
if version != p.NSLCD_VERSION {
panic(p.NslcdError(fmt.Sprintf("Version mismatch: server=%#08x client=%#08x", p.NSLCD_VERSION, version)))
}
var action int32
p.Read(in, &action)
ch := make(chan interface{})
switch action {
$(
while read -r request; do
cat <<EOT
case p.NSLCD_ACTION_${request^^}:
var req p.Request_${request}
p.Read(in, &req)
$(
case "$request" in
PAM_Authentication)
echo '_req := req'
echo '_req.Password = sensitive'
echo 'fmt.Fprintf(os.Stderr, "Request: %#v\n", _req)'
;;
PAM_PwMod)
echo '_req := req'
echo 'if len(_req.OldPassword) > 0 {'
echo ' _req.OldPassword = sensitive'
echo '}'
echo '_req.NewPassword = sensitive'
echo 'fmt.Fprintf(os.Stderr, "Request: %#v\n", _req)'
;;
PAM_UserMod)
echo '_req := req'
echo '_req.Password = sensitive'
echo 'fmt.Fprintf(os.Stderr, "Request: %#v\n", _req)'
;;
*)
echo 'fmt.Fprintf(os.Stderr, "Request: %#v\n", req)'
;;
esac
)
_ch := backend.${request}(cred, req)
go func() {
defer close(ch)
for obj := range _ch {
ch <- obj
}
}()
EOT
done < "$requests"
)
default:
close(ch)
panic(p.NslcdError(fmt.Sprintf("Unknown request action: %#08x", action)))
}
p.Write(out, p.NSLCD_VERSION)
p.Write(out, action)
for result := range ch {
p.Write(out, p.NSLCD_RESULT_BEGIN)
p.Write(out, result)
}
p.Write(out, p.NSLCD_RESULT_END)
}
EOF
|
