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#!/bin/sh |
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#--------------------------------------------- |
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# xdg-su |
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# |
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# Utility script to run a command as an alternate user, generally |
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# the root user, with a graphical prompt for the root |
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# password if needed |
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# |
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# Refer to the usage() function below for usage. |
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# |
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# Copyright 2006, Jeremy White <jwhite@codeweavers.com> |
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# Copyright 2006, Kevin Krammer <kevin.krammer@gmx.at> |
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# Copyright 2009, Aurelien Lefebvre <alefebvre@mandriva.com> |
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# |
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# LICENSE: |
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# |
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# Permission is hereby granted, free of charge, to any person obtaining a |
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# copy of this software and associated documentation files (the "Software"), |
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# to deal in the Software without restriction, including without limitation |
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# the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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# and/or sell copies of the Software, and to permit persons to whom the |
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# Software is furnished to do so, subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be included |
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# in all copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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# OTHER DEALINGS IN THE SOFTWARE. |
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# |
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#--------------------------------------------- |
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|
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distrib=`test -f /etc/lsb-release && |
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cat /etc/lsb-release | |
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grep "DISTRIB_ID" | |
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sed 's/DISTRIB_ID=\([A-Za-z]\+\)/\1/'` |
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if [ -z $distrib ]; then |
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distrib="Unknown" |
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fi |
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|
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|
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manualpage() |
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{ |
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cat << _MANUALPAGE |
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Name |
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|
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xdg-su - run a GUI program as root after prompting for the root password |
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|
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Synopsis |
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|
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xdg-su [-u user] -c command |
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|
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xdg-su { --help | --manual | --version } |
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|
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Description |
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|
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xdg-su provides a graphical dialog that prompts the user for a password to run |
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command as user or as root if no user was specified. |
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|
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xdg-su is for use inside a desktop session only. |
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|
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xdg-su discards any stdout and stderr output from command. |
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|
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Options |
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|
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-u user |
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run command as user. The default is to run as root. |
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--help |
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Show command synopsis. |
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--manual |
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Show this manualpage. |
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--version |
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Show the xdg-utils version information. |
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|
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Exit Codes |
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|
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An exit code of 0 indicates success while a non-zero exit code indicates |
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failure. The following failure codes can be returned: |
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|
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1 |
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Error in command line syntax. |
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2 |
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One of the files passed on the command line did not exist. |
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3 |
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A required tool could not be found. |
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4 |
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The action failed. |
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|
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See Also |
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|
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su(1) |
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|
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Examples |
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|
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xdg-su -u root -c "/opt/shinythings/bin/install-GUI --install fast" |
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|
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Runs the /opt/shinythings/bin/install-GUI command with root permissions. |
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|
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_MANUALPAGE |
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} |
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|
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usage() |
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{ |
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cat << _USAGE |
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xdg-su - run a GUI program as root after prompting for the root password |
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|
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Synopsis |
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|
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xdg-su [-u user] -c command |
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|
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xdg-su { --help | --manual | --version } |
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|
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_USAGE |
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} |
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|
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#@xdg-utils-common@ |
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|
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#---------------------------------------------------------------------------- |
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# Common utility functions included in all XDG wrapper scripts |
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#---------------------------------------------------------------------------- |
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|
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DEBUG() |
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{ |
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[ ${XDG_UTILS_DEBUG_LEVEL-0} -lt $1 ] && return 0; |
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shift |
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echo "$@" >&2 |
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} |
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|
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#------------------------------------------------------------- |
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# Exit script on successfully completing the desired operation |
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|
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exit_success() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "$@" |
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echo |
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fi |
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|
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exit 0 |
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} |
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|
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|
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#----------------------------------------- |
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# Exit script on malformed arguments, not enough arguments |
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# or missing required option. |
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# prints usage information |
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|
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exit_failure_syntax() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "xdg-su: $@" >&2 |
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echo "Try 'xdg-su --help' for more information." >&2 |
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else |
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usage |
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echo "Use 'man xdg-su' or 'xdg-su --manual' for additional info." |
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fi |
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|
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exit 1 |
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} |
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|
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#------------------------------------------------------------- |
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# Exit script on missing file specified on command line |
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|
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exit_failure_file_missing() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "xdg-su: $@" >&2 |
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fi |
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|
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exit 2 |
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} |
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|
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#------------------------------------------------------------- |
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# Exit script on failure to locate necessary tool applications |
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|
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exit_failure_operation_impossible() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "xdg-su: $@" >&2 |
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fi |
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|
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exit 3 |
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} |
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|
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#------------------------------------------------------------- |
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# Exit script on failure returned by a tool application |
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|
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exit_failure_operation_failed() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "xdg-su: $@" >&2 |
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fi |
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|
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exit 4 |
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} |
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|
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#------------------------------------------------------------ |
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# Exit script on insufficient permission to read a specified file |
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|
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exit_failure_file_permission_read() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "xdg-su: $@" >&2 |
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fi |
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|
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exit 5 |
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} |
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|
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#------------------------------------------------------------ |
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# Exit script on insufficient permission to read a specified file |
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|
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exit_failure_file_permission_write() |
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{ |
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if [ $# -gt 0 ]; then |
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echo "xdg-su: $@" >&2 |
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fi |
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|
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exit 6 |
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} |
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|
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check_input_file() |
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{ |
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if [ ! -e "$1" ]; then |
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exit_failure_file_missing "file '$1' does not exist" |
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fi |
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if [ ! -r "$1" ]; then |
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exit_failure_file_permission_read "no permission to read file '$1'" |
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fi |
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} |
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|
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check_vendor_prefix() |
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{ |
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file=`basename "$1"` |
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case "$file" in |
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[a-zA-Z]*-*) |
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return |
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;; |
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esac |
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|
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echo "xdg-su: filename '$file' does not have a proper vendor prefix" >&2 |
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echo 'A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated' >&2 |
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echo 'with a dash ("-"). An example filename is '"'example-$file'" >&2 |
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echo "Use --novendor to override or 'xdg-su --manual' for additional info." >&2 |
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exit 1 |
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} |
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|
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check_output_file() |
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{ |
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# if the file exists, check if it is writeable |
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# if it does not exists, check if we are allowed to write on the directory |
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if [ -e "$1" ]; then |
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if [ ! -w "$1" ]; then |
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exit_failure_file_permission_write "no permission to write to file '$1'" |
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fi |
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else |
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DIR=`dirname "$1"` |
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if [ ! -w "$DIR" -o ! -x "$DIR" ]; then |
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exit_failure_file_permission_write "no permission to create file '$1'" |
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fi |
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fi |
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} |
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|
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#---------------------------------------- |
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# Checks for shared commands, e.g. --help |
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|
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check_common_commands() |
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{ |
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while [ $# -gt 0 ] ; do |
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parm="$1" |
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shift |
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|
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case "$parm" in |
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--help) |
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usage |
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echo "Use 'man xdg-su' or 'xdg-su --manual' for additional info." |
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exit_success |
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;; |
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|
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--manual) |
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manualpage |
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exit_success |
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;; |
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|
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--version) |
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echo "xdg-su 1.0beta2" |
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exit_success |
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;; |
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esac |
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done |
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} |
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|
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check_common_commands "$@" |
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if [ ${XDG_UTILS_DEBUG_LEVEL-0} -lt 1 ]; then |
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# Be silent |
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xdg_redirect_output=" > /dev/null 2> /dev/null" |
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else |
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# All output to stderr |
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xdg_redirect_output=" >&2" |
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fi |
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|
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#-------------------------------------- |
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# Checks for known desktop environments |
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# set variable DE to the desktop environments name, lowercase |
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|
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detectDE() |
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{ |
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if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde; |
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elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome; |
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elif xprop -root _DT_SAVE_MODE | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce; |
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fi |
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} |
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|
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#---------------------------------------------------------------------------- |
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|
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|
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|
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su_kde() |
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{ |
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if [ x"$KDE_SESSION_VERSION" = x"4" ]; then |
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KDESU=`kde4-config --locate kdesu --path exe 2>/dev/null` |
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else |
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KDESU=`which kdesu 2>/dev/null` |
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if [ $? -ne 0 -a $distrib = "Ubuntu" ] ; then |
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KDESU=`which kdesudo 2>/dev/null` |
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fi |
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fi |
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if [ $? -eq 0 ] ; then |
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if [ -z "$user" ] ; then |
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if [ $distrib = "Ubuntu" ]; then |
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/usr/bin/kdesudo "$cmd" |
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else |
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$KDESU -c "$cmd" |
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fi |
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else |
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if [ $distrib = "Ubuntu" ]; then |
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/usr/bin/kdesudo -u "$user" "$cmd" |
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else |
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$KDESU -u "$user" -c "$cmd" |
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fi |
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fi |
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|
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if [ $? -eq 0 ]; then |
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exit_success |
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else |
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exit_failure_operation_failed |
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fi |
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else |
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su_generic |
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fi |
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} |
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|
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su_gnome() |
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{ |
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GSU=`which gnomesu 2>/dev/null` |
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if [ $? -ne 0 ] ; then |
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GSU=`which xsu 2>/dev/null` |
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fi |
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if [ $? -eq 0 ] ; then |
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if [ -z "$user" ] ; then |
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$GSU -c "$cmd" |
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else |
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$GSU -u "$user" -c "$cmd" |
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fi |
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|
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if [ $? -eq 0 ]; then |
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exit_success |
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else |
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exit_failure_operation_failed |
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fi |
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else |
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su_generic |
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fi |
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} |
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|
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sudo_gnome() |
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{ |
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GSU=`which gksudo 2>/dev/null` |
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if [ $? -eq 0 ] ; then |
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if [ -z "$user" ] ; then |
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$GSU "$cmd" |
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else |
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$GSU -u "$user" "$cmd" |
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fi |
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|
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if [ $? -eq 0 ]; then |
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exit_success |
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else |
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exit_failure_operation_failed |
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fi |
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else |
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su_generic |
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fi |
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} |
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|
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sudo_kde() |
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{ |
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GSU=`which kdesudo 2>/dev/null` |
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if [ $? -eq 0 ] ; then |
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if [ -z "$user" ] ; then |
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$GSU "$cmd" |
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else |
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$GSU -u "$user" "$cmd" |
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fi |
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|
| 409 |
if [ $? -eq 0 ]; then |
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exit_success |
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else |
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exit_failure_operation_failed |
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fi |
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else |
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su_generic |
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fi |
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} |
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|
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su_generic() |
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{ |
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|
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QUOTE=1 |
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TERMINAL="" |
| 424 |
[ -z "$TERMINAL" ] && TERMINAL=`which xterm 2> /dev/null` && QUOTE=0 |
| 425 |
[ -z "$TERMINAL" ] && TERMINAL=`which gnome-terminal 2> /dev/null` |
| 426 |
#[ -z "$TERMINAL" ] && TERMINAL=`which konsole 2> /dev/null` |
| 427 |
[ -z "$TERMINAL" ] && TERMINAL=`which aterm 2> /dev/null` && QUOTE=0 |
| 428 |
[ -z "$TERMINAL" ] && TERMINAL=`which Eterm 2> /dev/null` |
| 429 |
[ -z "$TERMINAL" ] && TERMINAL=`which kterm 2> /dev/null` && QUOTE=0 |
| 430 |
[ -z "$TERMINAL" ] && TERMINAL=`which lxterminal 2> /dev/null` |
| 431 |
|
| 432 |
if [ $distrib = "Ubuntu" ]; then |
| 433 |
if [ $QUOTE -eq 1 ]; then |
| 434 |
$TERMINAL -e "sudo $cmd" |
| 435 |
else |
| 436 |
$TERMINAL -e sudo "$cmd" |
| 437 |
fi |
| 438 |
else |
| 439 |
if [ $QUOTE -eq 1 ]; then |
| 440 |
$TERMINAL -e "su -c \"$cmd\"" |
| 441 |
else |
| 442 |
$TERMINAL -e su -c "$cmd" |
| 443 |
fi |
| 444 |
fi |
| 445 |
|
| 446 |
if [ $? -eq 0 ]; then |
| 447 |
exit_success |
| 448 |
else |
| 449 |
exit_failure_operation_failed |
| 450 |
fi |
| 451 |
} |
| 452 |
|
| 453 |
[ x"$1" != x"" ] || exit_failure_syntax |
| 454 |
|
| 455 |
user= |
| 456 |
cmd= |
| 457 |
while [ $# -gt 0 ] ; do |
| 458 |
parm="$1" |
| 459 |
shift |
| 460 |
|
| 461 |
case "$parm" in |
| 462 |
-u) |
| 463 |
if [ -z "$1" ] ; then |
| 464 |
exit_failure_syntax "user argument missing for -u" |
| 465 |
fi |
| 466 |
user="$1" |
| 467 |
shift |
| 468 |
;; |
| 469 |
|
| 470 |
-c) |
| 471 |
if [ -z "$1" ] ; then |
| 472 |
exit_failure_syntax "command argument missing for -c" |
| 473 |
fi |
| 474 |
cmd="$1" |
| 475 |
shift |
| 476 |
;; |
| 477 |
|
| 478 |
-*) |
| 479 |
exit_failure_syntax "unexpected option '$parm'" |
| 480 |
;; |
| 481 |
|
| 482 |
*) |
| 483 |
exit_failure_syntax "unexpected argument '$parm'" |
| 484 |
;; |
| 485 |
esac |
| 486 |
done |
| 487 |
|
| 488 |
if [ -z "${cmd}" ] ; then |
| 489 |
exit_failure_syntax "command missing" |
| 490 |
fi |
| 491 |
|
| 492 |
detectDE |
| 493 |
|
| 494 |
if [ x"$DE" = x"" ]; then |
| 495 |
DE=generic |
| 496 |
fi |
| 497 |
|
| 498 |
case "$DE" in |
| 499 |
kde) |
| 500 |
if [ $distrib = "Ubuntu" ]; then |
| 501 |
sudo_kde |
| 502 |
else |
| 503 |
su_kde |
| 504 |
fi |
| 505 |
;; |
| 506 |
|
| 507 |
gnome) |
| 508 |
if [ $distrib = "Ubuntu" ]; then |
| 509 |
sudo_gnome |
| 510 |
else |
| 511 |
su_gnome |
| 512 |
fi |
| 513 |
;; |
| 514 |
|
| 515 |
generic) |
| 516 |
su_generic |
| 517 |
;; |
| 518 |
|
| 519 |
*) |
| 520 |
[ x"$user" = x"" ] && user=root |
| 521 |
exit_failure_operation_impossible "no graphical method available for invoking '$cmd' as '$user'" |
| 522 |
;; |
| 523 |
esac |
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