nl.nikhef.ndpf.tools/vocachedir/vocachedir.sh

#! /bin/sh
#
# @(#)$Id$
#
# (C) Copyright 2009 Nikhef, National Institute for Subatomic Physics
#                    David Groep, Grid PDP group
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may 
# not use this file except in compliance with the License. You may obtain 
# a copy of the License at 
#       http://www.apache.org/licenses/LICENSE-2.0 
# Unless required by applicable law or agreed to in writing, software 
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
# See the License for the specific language governing permissions and 
# limitations under the License.
#
# Purpose:
#   Set the VO_xxx_CACHE_DIR variable when appropriate, based on a list of
#   possible base directories for such a cache. The script will accept any
#   incoming VONAME definition (such as set by the globus Job Manager patch)
#   but failing that will try to determine the VO based on the VOMS proxy.
#
# Configuration: will read /etc/sysconfig/vocachedir
#   Set CACHEBASES to a list of directory paths to which the voname (in
#   lower case) will be appended to name the actual cache directory. Its
#   permissions MUST be at least 01755 (i.e. the directory MUST be sticky)
#   and it MUST be owned by root
#
# Note: the script will NOT do cleanup of this directory, use tmpwatch(8) 
# for that.

cacheverbose=${cacheverbose:-0}
vomsproxyinfo=/opt/glite/bin/voms-proxy-info
CACHEBASES="/var/cache/grid /tmp/gridcache"

if test -f /etc/sysconfig/vocachedir
then
  . /etc/sysconfig/vocachedir
fi

voclog() {
  if test "$cacheverbose" -ne 0 
  then
    echo "$@" >&2
  fi
}

if test -z "$VONAME" -a -n "$X509_USER_PROXY"
then
  if test -x $vomsproxyinfo 
  then
    voname=$($vomsproxyinfo -file "$X509_USER_PROXY" -vo 2>/dev/null)
    case "$voname" in
    [a-zA-Z][-a-zA-Z.]* )       
      VONAME="$voname"
      export VONAME
      if test -n "$ISCSHELL"
      then
        echo "setenv VONAME \"$voname\""
      fi
      ;;
    * )
      unset voname
      ;;
    esac
  fi
fi

# utility function to set it (allows local vars)
setvocachedir() {
  local voucalias volcalias dirperm dir

  voucalias=$(echo "$VONAME" | tr a-z A-Z | sed -e 's/[^a-zA-Z0-9]/_/g')
  volcalias=$(echo "$VONAME" | tr A-Z a-z | sed -e 's/[^a-zA-Z0-9]/_/g')
  for dir in $CACHEBASES
  do
    voclog "Testing availability of cache base $dir"
    if test -d "$dir/$volcalias"
    then
      dirperm=$(stat -c %a "$dir/$volcalias")
      dirowner=$(stat -c %u "$dir/$volcalias")
      voclog "Testing $dir/$volcalias (perm=$dirperm,uid=$dirowner)"
      if test "$dirperm" -lt 1755
      then
        voclog Cache $dir/$volcalias exists but permissions $dirperm too lax
        voclog Declining to set VO_${voucalias}_CACHE_DIR
        return 1
      fi
      if test "$dirowner" -ne 0
      then
        voclog Cache $dir/$volcalias exists but owner is not root but $dirowner
        voclog Declining to set VO_${voucalias}_CACHE_DIR
        return 1
      fi
      eval VO_${voucalias}_CACHE_DIR="$dir/$volcalias"
      eval export VO_${voucalias}_CACHE_DIR
      if test -n "$ISCSHELL"
      then
        echo "setenv VO_${voucalias}_CACHE_DIR \"$dir/$volcalias\""
      fi
      break
    fi
  done
  return 0;
}

# we have figured out the VO name if it is to be found at all
# only continue if the VO is set, as we do not offer a generic cache
if test -n "$VONAME"
then
  setvocachedir
fi

unset setvocachedir
unset voclog
unset voname
1	#! /bin/sh
2	#
3	# @(#)$Id$
4	#
5	# (C) Copyright 2009 Nikhef, National Institute for Subatomic Physics
6	# David Groep, Grid PDP group
7	#
8	# Licensed under the Apache License, Version 2.0 (the "License"); you may
9	# not use this file except in compliance with the License. You may obtain
10	# a copy of the License at
11	# http://www.apache.org/licenses/LICENSE-2.0
12	# Unless required by applicable law or agreed to in writing, software
13	# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
14	# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15	# See the License for the specific language governing permissions and
16	# limitations under the License.
17	#
18	# Purpose:
19	# Set the VO_xxx_CACHE_DIR variable when appropriate, based on a list of
20	# possible base directories for such a cache. The script will accept any
21	# incoming VONAME definition (such as set by the globus Job Manager patch)
22	# but failing that will try to determine the VO based on the VOMS proxy.
23	#
24	# Configuration: will read /etc/sysconfig/vocachedir
25	# Set CACHEBASES to a list of directory paths to which the voname (in
26	# lower case) will be appended to name the actual cache directory. Its
27	# permissions MUST be at least 01755 (i.e. the directory MUST be sticky)
28	# and it MUST be owned by root
29	#
30	# Note: the script will NOT do cleanup of this directory, use tmpwatch(8)
31	# for that.
32
33	cacheverbose=${cacheverbose:-0}
34	vomsproxyinfo=/opt/glite/bin/voms-proxy-info
35	CACHEBASES="/var/cache/grid /tmp/gridcache"
36
37	if test -f /etc/sysconfig/vocachedir
38	then
39	. /etc/sysconfig/vocachedir
40	fi
41
42	voclog() {
43	if test "$cacheverbose" -ne 0
44	then
45	echo "$@" >&2
46	fi
47	}
48
49	if test -z "$VONAME" -a -n "$X509_USER_PROXY"
50	then
51	if test -x $vomsproxyinfo
52	then
53	voname=$($vomsproxyinfo -file "$X509_USER_PROXY" -vo 2>/dev/null)
54	case "$voname" in
55	[a-zA-Z][-a-zA-Z.]* )
56	VONAME="$voname"
57	export VONAME
58	if test -n "$ISCSHELL"
59	then
60	echo "setenv VONAME \"$voname\""
61	fi
62	;;
63	* )
64	unset voname
65	;;
66	esac
67	fi
68	fi
69
70	# utility function to set it (allows local vars)
71	setvocachedir() {
72	local voucalias volcalias dirperm dir
73
74	voucalias=$(echo "$VONAME" \| tr a-z A-Z \| sed -e 's/[^a-zA-Z0-9]/_/g')
75	volcalias=$(echo "$VONAME" \| tr A-Z a-z \| sed -e 's/[^a-zA-Z0-9]/_/g')
76	for dir in $CACHEBASES
77	do
78	voclog "Testing availability of cache base $dir"
79	if test -d "$dir/$volcalias"
80	then
81	dirperm=$(stat -c %a "$dir/$volcalias")
82	dirowner=$(stat -c %u "$dir/$volcalias")
83	voclog "Testing $dir/$volcalias (perm=$dirperm,uid=$dirowner)"
84	if test "$dirperm" -lt 1755
85	then
86	voclog Cache $dir/$volcalias exists but permissions $dirperm too lax
87	voclog Declining to set VO_${voucalias}_CACHE_DIR
88	return 1
89	fi
90	if test "$dirowner" -ne 0
91	then
92	voclog Cache $dir/$volcalias exists but owner is not root but $dirowner
93	voclog Declining to set VO_${voucalias}_CACHE_DIR
94	return 1
95	fi
96	eval VO_${voucalias}_CACHE_DIR="$dir/$volcalias"
97	eval export VO_${voucalias}_CACHE_DIR
98	if test -n "$ISCSHELL"
99	then
100	echo "setenv VO_${voucalias}_CACHE_DIR \"$dir/$volcalias\""
101	fi
102	break
103	fi
104	done
105	return 0;
106	}
107
108	# we have figured out the VO name if it is to be found at all
109	# only continue if the VO is set, as we do not offer a generic cache
110	if test -n "$VONAME"
111	then
112	setvocachedir
113	fi
114
115	unset setvocachedir
116	unset voclog
117	unset voname
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