Add initial xdg-settings patch to xdg-utils.

third_party/xdg-utils/scripts/xdg-settings

+#!/bin/sh
+#---------------------------------------------
+#   xdg-settings
+#
+#   Utility script to get various settings from the desktop environment.
+#
+#   Refer to the usage() function below for usage.
+#
+#   Copyright 2009, Google Inc.
+#
+#   LICENSE:
+#
+#   Permission is hereby granted, free of charge, to any person obtaining a
+#   copy of this software and associated documentation files (the "Software"),
+#   to deal in the Software without restriction, including without limitation
+#   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#   and/or sell copies of the Software, and to permit persons to whom the
+#   Software is furnished to do so, subject to the following conditions:
+#
+#   The above copyright notice and this permission notice shall be included
+#   in all copies or substantial portions of the Software.
+#
+#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+#   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+#   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+#   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+#   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#   OTHER DEALINGS IN THE SOFTWARE.
+#
+#---------------------------------------------
+
+manualpage()
+{
+cat << _MANUALPAGE
+Name
+
+xdg-settings - get various settings from the desktop environment
+
+Synopsis
+
+xdg-settings { get | set } {property} [value]
+
+xdg-settings { --help | --list | --manual | --version }
+
+Description
+
+xdg-settings gets various settings from the desktop environment. For instance,
+desktop environments often provide proxy configuration and default web browser
+settings. Using xdg-settings these parameters can be extracted for use by
+applications that do not use the desktop environment's libraries (which would
+use the settings natively).
+
+xdg-settings is for use inside a desktop session only. It is not recommended to
+use xdg-settings as root.
+
+Options
+
+--help
+    Show command synopsis.
+--list
+    List all properties xdg-settings knows about.
+--manual
+    Show this manualpage.
+--version
+    Show the xdg-utils version information.
+
+Exit Codes
+
+An exit code of 0 indicates success while a non-zero exit code indicates
+failure. The following failure codes can be returned:
+
+1
+    Error in command line syntax.
+2
+    One of the files passed on the command line did not exist.
+3
+    A required tool could not be found.
+4
+    The action failed.
+
+Examples
+
+        xdg-settings get default-web-browser
+
+
+Gets the desktop file name of the current default web browser
+
+        xdg-settings set default-web-browser google-chrome.desktop
+
+
+Sets the default web browser to google-chrome.desktop
+
+_MANUALPAGE
+}
+
+usage()
+{
+cat << _USAGE
+xdg-settings - get various settings from the desktop environment
+
+Synopsis
+
+xdg-settings { get | set } {property} [value]
+
+xdg-settings { --help | --list | --manual | --version }
+
+_USAGE
+}
+
+#@xdg-utils-common@
+
+#----------------------------------------------------------------------------
+#   Common utility functions included in all XDG wrapper scripts
+#----------------------------------------------------------------------------
+
+DEBUG()
+{
+  [ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && return 0;
+  [ ${XDG_UTILS_DEBUG_LEVEL} -lt $1 ] && return 0;
+  shift
+  echo "$@" >&2
+}
+
+#-------------------------------------------------------------
+# Exit script on successfully completing the desired operation
+
+exit_success()
+{
+    if [ $# -gt 0 ]; then
+        echo "$@"
+        echo
+    fi
+
+    exit 0
+}
+
+
+#-----------------------------------------
+# Exit script on malformed arguments, not enough arguments
+# or missing required option.
+# prints usage information
+
+exit_failure_syntax()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-settings: $@" >&2
+        echo "Try 'xdg-settings --help' for more information." >&2
+    else
+        usage
+        echo "Use 'man xdg-settings' or 'xdg-settings --manual' for additional info."
+    fi
+
+    exit 1
+}
+
+#-------------------------------------------------------------
+# Exit script on missing file specified on command line
+
+exit_failure_file_missing()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-settings: $@" >&2
+    fi
+
+    exit 2
+}
+
+#-------------------------------------------------------------
+# Exit script on failure to locate necessary tool applications
+
+exit_failure_operation_impossible()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-settings: $@" >&2
+    fi
+
+    exit 3
+}
+
+#-------------------------------------------------------------
+# Exit script on failure returned by a tool application
+
+exit_failure_operation_failed()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-settings: $@" >&2
+    fi
+
+    exit 4
+}
+
+#------------------------------------------------------------
+# Exit script on insufficient permission to read a specified file
+
+exit_failure_file_permission_read()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-settings: $@" >&2
+    fi
+
+    exit 5
+}
+
+#------------------------------------------------------------
+# Exit script on insufficient permission to read a specified file
+
+exit_failure_file_permission_write()
+{
+    if [ $# -gt 0 ]; then
+        echo "xdg-settings: $@" >&2
+    fi
+
+    exit 6
+}
+
+check_input_file()
+{
+    if [ ! -e "$1" ]; then
+        exit_failure_file_missing "file '$1' does not exist"
+    fi
+    if [ ! -r "$1" ]; then
+        exit_failure_file_permission_read "no permission to read file '$1'"
+    fi
+}
+
+check_vendor_prefix()
+{
+    file_label="$2"
+    [ -n "$file_label" ] || file_label="filename"
+    file=`basename "$1"`
+    case "$file" in
+       [a-zA-Z]*-*)
+         return
+         ;;
+    esac
+
+    echo "xdg-settings: $file_label '$file' does not have a proper vendor prefix" >&2
+    echo 'A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated' >&2
+    echo 'with a dash ("-"). An example '"$file_label"' is '"'example-$file'" >&2
+    echo "Use --novendor to override or 'xdg-settings --manual' for additional info." >&2
+    exit 1
+}
+
+check_output_file()
+{
+    # if the file exists, check if it is writeable
+    # if it does not exists, check if we are allowed to write on the directory
+    if [ -e "$1" ]; then
+        if [ ! -w "$1" ]; then
+            exit_failure_file_permission_write "no permission to write to file '$1'"
+        fi
+    else
+        DIR=`dirname "$1"`
+        if [ ! -w "$DIR" -o ! -x "$DIR" ]; then
+            exit_failure_file_permission_write "no permission to create file '$1'"
+        fi
+    fi
+}
+
+#----------------------------------------
+# Checks for shared commands, e.g. --help
+
+check_common_commands()
+{
+    while [ $# -gt 0 ] ; do
+        parm="$1"
+        shift
+
+        case "$parm" in
+            --help)
+            usage
+            echo "Use 'man xdg-settings' or 'xdg-settings --manual' for additional info."
+            exit_success
+            ;;
+
+            --manual)
+            manualpage
+            exit_success
+            ;;
+
+            --version)
+            echo "xdg-settings 1.0.2"
+            exit_success
+            ;;
+        esac
+    done
+}
+
+check_common_commands "$@"
+
+[ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && unset XDG_UTILS_DEBUG_LEVEL;
+if [ ${XDG_UTILS_DEBUG_LEVEL-0} -lt 1 ]; then
+    # Be silent
+    xdg_redirect_output=" > /dev/null 2> /dev/null"
+else
+    # All output to stderr
+    xdg_redirect_output=" >&2"
+fi
+
+#--------------------------------------
+# Checks for known desktop environments
+# set variable DE to the desktop environments name, lowercase
+
+detectDE()
+{
+    if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde;
+    elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
+    elif xprop -root _DT_SAVE_MODE | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce;
+    fi
+}
+
+#----------------------------------------------------------------------------
+# kfmclient exec/openURL can give bogus exit value in KDE <= 3.5.4
+# It also always returns 1 in KDE 3.4 and earlier
+# Simply return 0 in such case
+
+kfmclient_fix_exit_code()
+{
+    version=`kde${KDE_SESSION_VERSION}-config --version 2>/dev/null | grep KDE`
+    major=`echo $version | sed 's/KDE: \([0-9]\).*/\1/'`
+    minor=`echo $version | sed 's/KDE: [0-9]*\.\([0-9]\).*/\1/'`
+    release=`echo $version | sed 's/KDE: [0-9]*\.[0-9]*\.\([0-9]\).*/\1/'`
+    test "$major" -gt 3 && return $1
+    test "$minor" -gt 5 && return $1
+    test "$release" -gt 4 && return $1
+    return 0
+}
+
+check_desktop_filename()
+{
+    case "$1" in
+      */*)
+        exit_failure_syntax "invalid application name"
+        ;;
+      *.desktop)
+        return
+        ;;
+      *)
+        exit_failure_syntax "invalid application name"
+        ;;
+    esac
+}
+
+# {{{ default browser
+
+# In order to remove an application from the automatically-generated list of
+# applications for handling a given MIME type, the desktop environment may copy
+# the global .desktop file into the user's .local directory, and remove that
+# MIME type from its list. In that case, we must restore the MIME type to the
+# application's list of MIME types before we can set it as the default for that
+# MIME type. (We can't just delete the local version, since the user may have
+# made other changes to it as well. So, tweak the existing file.)
+# This function is hard-coded for text/html but it could be adapted if needed.
+fix_local_desktop_file()
+{
+    apps="${XDG_DATA_HOME:-$HOME/.local/share}/applications"
+    # No local desktop file?
+    [ ! -f "$apps/$1" ] && return
+    MIME="`grep ^MimeType= "$apps/$1" | cut -d= -f 2-`"
+    case "$MIME" in
+      text/html\;*|*\;text/html\;*|*\;text/html\;|*\;text/html)
+        # Already has text/html? Great!
+        return 0
+        ;;
+    esac
+
+    # Add text/html to the list
+    temp="`mktemp $apps/$1.XXXXXX`" || return
+    grep -v ^MimeType= "$apps/$1" >> "$temp"
+    echo "MimeType=text/html;$MIME" >> "$temp"
+
+    oldlines="`wc -l < "$apps/$1"`"
+    newlines="`wc -l < "$temp"`"
+    # The new file should have at least as many lines as the old
+    if [ $oldlines -le $newlines ]; then
+        mv "$temp" "$apps/$1"
+        # This can take a little bit to get noticed
+        sleep 4
+    else
+        rm -f "$temp"
+        return 1
+    fi
+}
+
+get_browser_mime()
+{
+    xdg-mime query default text/html
+}
+
+set_browser_mime()
+{
+    orig="`get_browser_mime`"
+    # Fixing the local desktop file can actually change the default browser all
+    # by itself, so we fix it only after querying to find the current default
+    fix_local_desktop_file "$1" || return
+    mkdir -p "${XDG_DATA_HOME:-$HOME/.local/share/applications}"
+    xdg-mime default "$1" text/html || return
+    if [ x"`get_browser_mime`" != x"$1" ]; then
+        # Put back the original value
+        xdg-mime default "$orig" text/html
+        exit_failure_operation_failed
+    fi
+}
+
+get_browser_kde()
+{
+    browser="`kreadconfig --file kdeglobals --group General --key BrowserApplication`"
+    if [ x"$browser" = x ]; then
+        # No default browser; KDE will probably use the MIME type text/html
+        get_browser_mime
+    else
+        echo "$browser"
+    fi
+}
+
+set_browser_kde()
+{
+    set_browser_mime "$1" || return
+    kwriteconfig --file kdeglobals --group General --key BrowserApplication "$1"
+}
+
+# This handles backslashes but not quote marks
+first_word()
+{
+    read first rest
+    echo "$first"
+}
+
+binary_to_desktop_file()
+{
+    search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+    binary="`which "$1"`"
+    base="`basename "$1"`"
+    IFS=:
+    for dir in $search; do
+        unset IFS
+        [ "$dir" -a -d "$dir/applications" ] || continue
+        for file in "$dir"/applications/*.desktop; do
+            [ -r "$file" ] || continue
+            # Check to make sure it's worth the processing
+            grep -q "^Exec.*$base" "$file" || continue
+            exec="`grep "^Exec\(\[[^]=]*]\)\?=" "$file" | cut -d= -f 2- | first_word`"
+            full="`which "$exec"`"
+            if [ x"$full" = x"$binary" ]; then
+                # Fix any double slashes that got added path composition
+                echo "$file" | sed -e 's,//*,/,g'
+                return
+            fi
+        done
+    done
+}
+
+desktop_file_to_command()
+{
+    search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+    desktop="`basename "$1"`"
+    IFS=:
+    for dir in $search; do
+        [ "$dir" -a -d "$dir/applications" ] || continue
+        file="$dir/applications/$desktop"
+        [ -r "$file" ] || continue
+        # Change %F, %f, %U, and %u to %s
+        grep "^Exec\(\[[^]=]*]\)\?=" "$file" | cut -d= -f 2- | sed -e 's/%[FfUu]/%s/g'
+        return
+    done
+}
+
+get_browser_gnome()
+{
+    binary="`gconftool-2 --get /desktop/gnome/applications/browser/exec`"
+    if [ x"$binary" = x ]; then
+        # No default browser; GNOME might use the MIME type text/html
+        get_browser_mime
+    else
+        # gconftool gives the binary (maybe with %s etc. afterward),
+        # but we want the desktop file name, not the binary. So, we
+        # have to find the desktop file to which it corresponds.
+        binary="`echo "$binary" | first_word`"
+        desktop="`binary_to_desktop_file "$binary"`"
+        if [ "$desktop" ]; then
+            basename "$desktop"
+            exit_success
+        fi
+        binary="`which "$binary"`"
+        if [ "$binary" ]; then
+            echo "$binary"
+            exit_success
+        fi
+        exit_failure_operation_failed
+    fi
+}
+
+set_browser_gnome()
+{
+    command="`desktop_file_to_command "$1"`"
+    [ "$command" ] || exit_failure_file_missing
+    binary="`echo "$command" | first_word`"
+    set_browser_mime "$1" || return
+
+    # Set the default browser
+    gconftool-2 --type string --set /desktop/gnome/applications/browser/exec "$binary"
+    gconftool-2 --type bool --set /desktop/gnome/applications/browser/needs_term false
+    gconftool-2 --type bool --set /desktop/gnome/applications/browser/nremote true
+    # Set the handler for HTTP and HTTPS
+    for protocol in http https; do
+        gconftool-2 --type string --set /desktop/gnome/url-handlers/$protocol/command "$command"
+        gconftool-2 --type bool --set /desktop/gnome/url-handlers/$protocol/needs_terminal false
+        gconftool-2 --type bool --set /desktop/gnome/url-handlers/$protocol/enabled true
+    done
+    # Set the handler for about: and unknown URL types
+    for protocol in about unknown; do
+        gconftool-2 --type string --set /desktop/gnome/url-handlers/$protocol/command "$command"
+    done
+}
+
+get_browser_xfce()
+{
+    # Not supported yet
+    exit_failure_operation_impossible
+}
+
+set_browser_xfce()
+{
+    # Not supported yet
+    exit_failure_operation_impossible
+}
+
+# }}} default browser
+
+dispatch_specific()
+{
+    # The PARM comments in this function are used to generate the output of
+    # the --list option. The formatting is important. Make sure to line up the
+    # property descriptions with spaces so that it will look nice.
+    if [ x"$op" = x"get" ]; then
+        case "$parm" in
+          default-web-browser) # PROP:           Default web browser
+            get_browser_$DE
+            ;;
+
+          *)
+            exit_failure_syntax
+            ;;
+        esac
+    else # set
+        [ $# -eq 1 ] || exit_failure_syntax "unexpected/missing argument"
+        case "$parm" in
+          default-web-browser)
+            check_desktop_filename "$1"
+            set_browser_$DE "$1"
+            ;;
+
+          *)
+            exit_failure_syntax
+            ;;
+        esac
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
+dispatch_generic()
+{
+    # We only know how to get the default web browser
+    [ x"$op" != x"get" ] && exit_failure_operation_impossible
+    [ x"$parm" != x"default-web-browser" ] && exit_failure_operation_impossible
+
+    # FIXME: look up the desktop file name
+
+    # First look in $BROWSER
+    if [ x"$BROWSER" != x ]; then
+        echo "${BROWSER%%:*}"
+        exit_success
+    fi
+
+    # Debian and Ubuntu (and others?) have x-www-browser
+    browser="`which x-www-browser`"
+    [ "$browser" ] || exit_failure_operation_failed
+    browser="`readlink -f "$browser"`"
+
+    echo "$browser"
+    exit_success
+}
+
+if [ x"$1" = x"--list" ]; then
+    echo "Known properties:"
+    # Extract the property names from dispatch_specific() above
+    grep "^[    ]*[^)]*) # PROP:" "$0" | sed -e 's/^[   ]*\([^)]*\)) # PROP: \(.*\)$/  \1 \2/' | sort
+    exit_success
+fi
+
+[ x"$1" != x ] || exit_failure_syntax "no operation given"
+[ x"$2" != x ] || exit_failure_syntax "no parameter name given"
+
+op="$1"
+parm="$2"
+shift 2
+
+[ x"$op" = x"get" -o x"$op" = x"set" ] || exit_failure_syntax "invalid operation"
+
+detectDE
+
+case "$DE" in
+    kde|gnome|xfce)
+    dispatch_specific "$@"
+    ;;
+
+    generic)
+    dispatch_generic "$@"
+    ;;
+
+    *)
+    exit_failure_operation_impossible "unknown desktop environment"
+    ;;
+esac