1#!/bin/sh 2#--------------------------------------------- 3# xdg-settings 4# 5# Utility script to get various settings from the desktop environment. 6# 7# Refer to the usage() function below for usage. 8# 9# Copyright 2009, Google Inc. 10# 11# LICENSE: 12# 13# Permission is hereby granted, free of charge, to any person obtaining a 14# copy of this software and associated documentation files (the "Software"), 15# to deal in the Software without restriction, including without limitation 16# the rights to use, copy, modify, merge, publish, distribute, sublicense, 17# and/or sell copies of the Software, and to permit persons to whom the 18# Software is furnished to do so, subject to the following conditions: 19# 20# The above copyright notice and this permission notice shall be included 21# in all copies or substantial portions of the Software. 22# 23# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 24# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 25# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 26# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 27# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 28# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 29# OTHER DEALINGS IN THE SOFTWARE. 30# 31#--------------------------------------------- 32 33manualpage() 34{ 35cat << _MANUALPAGE 36Name 37 38xdg-settings - get various settings from the desktop environment 39 40Synopsis 41 42xdg-settings { get | check | set } {property} [subproperty] [value] 43 44xdg-settings { --help | --list | --manual | --version } 45 46Description 47 48xdg-settings gets various settings from the desktop environment. For instance, 49desktop environments often provide proxy configuration and default web browser 50settings. Using xdg-settings these parameters can be extracted for use by 51applications that do not use the desktop environment's libraries (which would 52use the settings natively). 53 54xdg-settings is for use inside a desktop session only. It is not recommended to 55use xdg-settings as root. 56 57Options 58 59--help 60 Show command synopsis. 61--list 62 List all properties xdg-settings knows about. 63--manual 64 Show this manualpage. 65--version 66 Show the xdg-utils version information. 67 68Properties 69 70When using xdg-settings to get, check or set a destkop setting, properties and 71possibly sub-properties are used to specify the setting to be changed. 72 73Some properties (such as default-web-browser) fully describe the setting to be 74changed. Other properties (such as default-url-scheme-handler) require more 75information (in this case the actual scheme to set the default handler for) 76which must be provided in a sub-property. 77 78Exit Codes 79 80An exit code of 0 indicates success while a non-zero exit code indicates 81failure. The following failure codes can be returned: 82 831 84 Error in command line syntax. 852 86 One of the files passed on the command line did not exist. 873 88 A required tool could not be found. 894 90 The action failed. 91 92Examples 93 94Get the desktop file name of the current default web browser 95 96 xdg-settings get default-web-browser 97 98 99Check whether the default web browser is firefox.desktop, which can be false 100even if "get default-web-browser" says that is the current value (if only some 101of the underlying settings actually reflect that value) 102 103 xdg-settings check default-web-browser firefox.desktop 104 105 106Set the default web browser to google-chrome.desktop 107 108 xdg-settings set default-web-browser google-chrome.desktop 109 110 111Set the default mailto URL scheme handler to be evolution.desktop 112 113 xdg-settings set default-url-scheme-handler mailto evolution.desktop 114 115 116_MANUALPAGE 117} 118 119usage() 120{ 121cat << _USAGE 122xdg-settings - get various settings from the desktop environment 123 124Synopsis 125 126xdg-settings { get | check | set } {property} [subproperty] [value] 127 128xdg-settings { --help | --list | --manual | --version } 129 130_USAGE 131} 132 133#@xdg-utils-common@ 134 135#---------------------------------------------------------------------------- 136# Common utility functions included in all XDG wrapper scripts 137#---------------------------------------------------------------------------- 138 139DEBUG() 140{ 141 [ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && return 0; 142 [ ${XDG_UTILS_DEBUG_LEVEL} -lt $1 ] && return 0; 143 shift 144 echo "$@" >&2 145} 146 147# This handles backslashes but not quote marks. 148first_word() 149{ 150 read first rest 151 echo "$first" 152} 153 154#------------------------------------------------------------- 155# map a binary to a .desktop file 156binary_to_desktop_file() 157{ 158 search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}" 159 binary="`which "$1"`" 160 binary="`readlink -f "$binary"`" 161 base="`basename "$binary"`" 162 IFS=: 163 for dir in $search; do 164 unset IFS 165 [ "$dir" ] || continue 166 [ -d "$dir/applications" -o -d "$dir/applnk" ] || continue 167 for file in "$dir"/applications/*.desktop "$dir"/applications/*/*.desktop "$dir"/applnk/*.desktop "$dir"/applnk/*/*.desktop; do 168 [ -r "$file" ] || continue 169 # Check to make sure it's worth the processing. 170 grep -q "^Exec.*$base" "$file" || continue 171 # Make sure it's a visible desktop file (e.g. not "preferred-web-browser.desktop"). 172 grep -Eq "^(NoDisplay|Hidden)=true" "$file" && continue 173 command="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | first_word`" 174 command="`which "$command"`" 175 if [ x"`readlink -f "$command"`" = x"$binary" ]; then 176 # Fix any double slashes that got added path composition 177 echo "$file" | sed -e 's,//*,/,g' 178 return 179 fi 180 done 181 done 182} 183 184#------------------------------------------------------------- 185# map a .desktop file to a binary 186## FIXME: handle vendor dir case 187desktop_file_to_binary() 188{ 189 search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}" 190 desktop="`basename "$1"`" 191 IFS=: 192 for dir in $search; do 193 unset IFS 194 [ "$dir" -a -d "$dir/applications" ] || continue 195 file="$dir/applications/$desktop" 196 [ -r "$file" ] || continue 197 # Remove any arguments (%F, %f, %U, %u, etc.). 198 command="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | first_word`" 199 command="`which "$command"`" 200 readlink -f "$command" 201 return 202 done 203} 204 205#------------------------------------------------------------- 206# Exit script on successfully completing the desired operation 207 208exit_success() 209{ 210 if [ $# -gt 0 ]; then 211 echo "$@" 212 echo 213 fi 214 215 exit 0 216} 217 218 219#----------------------------------------- 220# Exit script on malformed arguments, not enough arguments 221# or missing required option. 222# prints usage information 223 224exit_failure_syntax() 225{ 226 if [ $# -gt 0 ]; then 227 echo "xdg-settings: $@" >&2 228 echo "Try 'xdg-settings --help' for more information." >&2 229 else 230 usage 231 echo "Use 'man xdg-settings' or 'xdg-settings --manual' for additional info." 232 fi 233 234 exit 1 235} 236 237#------------------------------------------------------------- 238# Exit script on missing file specified on command line 239 240exit_failure_file_missing() 241{ 242 if [ $# -gt 0 ]; then 243 echo "xdg-settings: $@" >&2 244 fi 245 246 exit 2 247} 248 249#------------------------------------------------------------- 250# Exit script on failure to locate necessary tool applications 251 252exit_failure_operation_impossible() 253{ 254 if [ $# -gt 0 ]; then 255 echo "xdg-settings: $@" >&2 256 fi 257 258 exit 3 259} 260 261#------------------------------------------------------------- 262# Exit script on failure returned by a tool application 263 264exit_failure_operation_failed() 265{ 266 if [ $# -gt 0 ]; then 267 echo "xdg-settings: $@" >&2 268 fi 269 270 exit 4 271} 272 273#------------------------------------------------------------ 274# Exit script on insufficient permission to read a specified file 275 276exit_failure_file_permission_read() 277{ 278 if [ $# -gt 0 ]; then 279 echo "xdg-settings: $@" >&2 280 fi 281 282 exit 5 283} 284 285#------------------------------------------------------------ 286# Exit script on insufficient permission to write a specified file 287 288exit_failure_file_permission_write() 289{ 290 if [ $# -gt 0 ]; then 291 echo "xdg-settings: $@" >&2 292 fi 293 294 exit 6 295} 296 297check_input_file() 298{ 299 if [ ! -e "$1" ]; then 300 exit_failure_file_missing "file '$1' does not exist" 301 fi 302 if [ ! -r "$1" ]; then 303 exit_failure_file_permission_read "no permission to read file '$1'" 304 fi 305} 306 307check_vendor_prefix() 308{ 309 file_label="$2" 310 [ -n "$file_label" ] || file_label="filename" 311 file=`basename "$1"` 312 case "$file" in 313 [a-zA-Z]*-*) 314 return 315 ;; 316 esac 317 318 echo "xdg-settings: $file_label '$file' does not have a proper vendor prefix" >&2 319 echo 'A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated' >&2 320 echo 'with a dash ("-"). An example '"$file_label"' is '"'example-$file'" >&2 321 echo "Use --novendor to override or 'xdg-settings --manual' for additional info." >&2 322 exit 1 323} 324 325check_output_file() 326{ 327 # if the file exists, check if it is writeable 328 # if it does not exists, check if we are allowed to write on the directory 329 if [ -e "$1" ]; then 330 if [ ! -w "$1" ]; then 331 exit_failure_file_permission_write "no permission to write to file '$1'" 332 fi 333 else 334 DIR=`dirname "$1"` 335 if [ ! -w "$DIR" -o ! -x "$DIR" ]; then 336 exit_failure_file_permission_write "no permission to create file '$1'" 337 fi 338 fi 339} 340 341#---------------------------------------- 342# Checks for shared commands, e.g. --help 343 344check_common_commands() 345{ 346 while [ $# -gt 0 ] ; do 347 parm="$1" 348 shift 349 350 case "$parm" in 351 --help) 352 usage 353 echo "Use 'man xdg-settings' or 'xdg-settings --manual' for additional info." 354 exit_success 355 ;; 356 357 --manual) 358 manualpage 359 exit_success 360 ;; 361 362 --version) 363 echo "xdg-settings 1.1.0 rc1" 364 exit_success 365 ;; 366 esac 367 done 368} 369 370check_common_commands "$@" 371 372[ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && unset XDG_UTILS_DEBUG_LEVEL; 373if [ ${XDG_UTILS_DEBUG_LEVEL-0} -lt 1 ]; then 374 # Be silent 375 xdg_redirect_output=" > /dev/null 2> /dev/null" 376else 377 # All output to stderr 378 xdg_redirect_output=" >&2" 379fi 380 381#-------------------------------------- 382# Checks for known desktop environments 383# set variable DE to the desktop environments name, lowercase 384 385detectDE() 386{ 387 # see https://bugs.freedesktop.org/show_bug.cgi?id=34164 388 unset GREP_OPTIONS 389 390 if [ -n "${XDG_CURRENT_DESKTOP}" ]; then 391 case "${XDG_CURRENT_DESKTOP}" in 392 GNOME) 393 DE=gnome; 394 ;; 395 KDE) 396 DE=kde; 397 ;; 398 LXDE) 399 DE=lxde; 400 ;; 401 XFCE) 402 DE=xfce 403 esac 404 fi 405 406 if [ x"$DE" = x"" ]; then 407 # classic fallbacks 408 if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde; 409 elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome; 410 elif `dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager > /dev/null 2>&1` ; then DE=gnome; 411 elif xprop -root _DT_SAVE_MODE 2> /dev/null | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce; 412 elif xprop -root 2> /dev/null | grep -i '^xfce_desktop_window' >/dev/null 2>&1; then DE=xfce 413 fi 414 fi 415 416 if [ x"$DE" = x"" ]; then 417 # fallback to checking $DESKTOP_SESSION 418 case "$DESKTOP_SESSION" in 419 gnome) 420 DE=gnome; 421 ;; 422 LXDE) 423 DE=lxde; 424 ;; 425 xfce|xfce4) 426 DE=xfce; 427 ;; 428 esac 429 fi 430 431 if [ x"$DE" = x"" ]; then 432 # fallback to uname output for other platforms 433 case "$(uname 2>/dev/null)" in 434 Darwin) 435 DE=darwin; 436 ;; 437 esac 438 fi 439 440 if [ x"$DE" = x"gnome" ]; then 441 # gnome-default-applications-properties is only available in GNOME 2.x 442 # but not in GNOME 3.x 443 which gnome-default-applications-properties > /dev/null 2>&1 || DE="gnome3" 444 fi 445} 446 447#---------------------------------------------------------------------------- 448# kfmclient exec/openURL can give bogus exit value in KDE <= 3.5.4 449# It also always returns 1 in KDE 3.4 and earlier 450# Simply return 0 in such case 451 452kfmclient_fix_exit_code() 453{ 454 version=`LC_ALL=C.UTF-8 kde-config --version 2>/dev/null | grep '^KDE'` 455 major=`echo $version | sed 's/KDE.*: \([0-9]\).*/\1/'` 456 minor=`echo $version | sed 's/KDE.*: [0-9]*\.\([0-9]\).*/\1/'` 457 release=`echo $version | sed 's/KDE.*: [0-9]*\.[0-9]*\.\([0-9]\).*/\1/'` 458 test "$major" -gt 3 && return $1 459 test "$minor" -gt 5 && return $1 460 test "$release" -gt 4 && return $1 461 return 0 462} 463 464check_desktop_filename() 465{ 466 case "$1" in 467 */*) 468 exit_failure_syntax "invalid application name" 469 ;; 470 *.desktop) 471 return 472 ;; 473 *) 474 exit_failure_syntax "invalid application name" 475 ;; 476 esac 477} 478 479# {{{ default browser 480# {{{ utility functions 481 482# In order to remove an application from the automatically-generated list of 483# applications for handling a given MIME type, the desktop environment may copy 484# the global .desktop file into the user's .local directory, and remove that 485# MIME type from its list. In that case, we must restore the MIME type to the 486# application's list of MIME types before we can set it as the default for that 487# MIME type. (We can't just delete the local version, since the user may have 488# made other changes to it as well. So, tweak the existing file.) 489# This function is hard-coded for text/html but it could be adapted if needed. 490fix_local_desktop_file() 491{ 492 if test -z "$2" ; then 493 MIME="text/html" 494 else 495 MIME="$2" 496 fi 497 apps="${XDG_DATA_HOME:-$HOME/.local/share}/applications" 498 # No local desktop file? 499 [ ! -f "$apps/$1" ] && return 500 MIMETYPES="`grep "^MimeType=" "$apps/$1" | cut -d= -f 2-`" 501 case "$MIMETYPES" in 502 $MIME\;*|*\;$MIME\;*|*\;$MIME\;|*\;$MIME) 503 # Already has the mime-type? Great! 504 return 0 505 ;; 506 esac 507 508 # Add the mime-type to the list 509 temp="`mktemp "$apps/$1.XXXXXX"`" || return 510 grep -v "^MimeType=" "$apps/$1" >> "$temp" 511 echo "MimeType=$MIME;$MIMETYPES" >> "$temp" 512 513 oldlines="`wc -l < "$apps/$1"`" 514 newlines="`wc -l < "$temp"`" 515 # The new file should have at least as many lines as the old. 516 if [ $oldlines -le $newlines ]; then 517 mv "$temp" "$apps/$1" 518 # This can take a little bit to get noticed. 519 sleep 4 520 else 521 rm -f "$temp" 522 return 1 523 fi 524} 525 526# }}} utility functions 527# {{{ MIME utilities 528 529xdg_mime_fixup() 530{ 531 # xdg-mime may use ktradertest, which will fork off a copy of kdeinit if 532 # one does not already exist. It will exit after about 15 seconds if no 533 # further processes need it around. But since it does not close its stdout, 534 # the shell (via grep) will wait around for kdeinit to exit. If we start a 535 # copy here, that copy will be used in xdg-mime and we will avoid waiting. 536 if [ "$DE" = kde -a -z "$XDG_MIME_FIXED" ]; then 537 ktradertest text/html Application > /dev/null 2>&1 538 # Only do this once, as we only need it once. 539 XDG_MIME_FIXED=yes 540 fi 541} 542 543get_browser_mime() 544{ 545 if test -z "$1" ; then 546 MIME="text/html" 547 else 548 MIME="$1" 549 fi 550 xdg_mime_fixup 551 xdg-mime query default "$MIME" 552} 553 554set_browser_mime() 555{ 556 xdg_mime_fixup 557 if test -z "$2" ; then 558 MIME="text/html" 559 else 560 MIME="$2" 561 fi 562 orig="`get_browser_mime $MIME`" 563 # Fixing the local desktop file can actually change the default browser all 564 # by itself, so we fix it only after querying to find the current default. 565 fix_local_desktop_file "$1" "$MIME" || return 566 mkdir -p "${XDG_DATA_HOME:-$HOME/.local/share}/applications" 567 xdg-mime default "$1" "$MIME" || return 568 if [ x"`get_browser_mime`" != x"$1" ]; then 569 # Put back the original value 570 xdg-mime default "$orig" "$MIME" 571 exit_failure_operation_failed 572 fi 573} 574 575# }}} MIME utilities 576# {{{ KDE utilities 577 578# Reads the KDE configuration setting, compensating for a bug in some versions of kreadconfig. 579read_kde_config() 580{ 581 configfile="$1" 582 configsection="$2" 583 configkey="$3" 584 application="`kreadconfig --file $configfile --group $configsection --key $configkey`" 585 if [ x"$application" != x ]; then 586 echo "$application" 587 else 588 # kreadconfig in KDE 4 may not notice Key[$*]=... localized settings, so 589 # check by hand if it didn't find anything (oddly kwriteconfig works 590 # fine though). 591 configfile_dir=`kde${KDE_SESSION_VERSION}-config --path config | cut -d ':' -f 1` 592 configfile_path="$configfile_dir/$configfile" 593 [ ! -f "$configfile_path" ] && return 594 # This will only take the first value if there is more than one. 595 grep "^$configkey"'\[$[^]=]*\]=' "$configfile_path" | head -n 1 | cut -d= -f 2- 596 fi 597} 598 599# }}} KDE utilities 600# {{{ KDE 601 602# Resolves the KDE browser setting to a binary: if prefixed with !, simply removes it; 603# otherwise, uses desktop_file_to_binary to get the binary out of the desktop file. 604resolve_kde_browser() 605{ 606 [ -z "$browser" ] && return 607 case "$browser" in 608 !*) 609 echo "${browser#!}" 610 ;; 611 *) 612 desktop_file_to_binary "$browser" 613 ;; 614 esac 615} 616 617# Does the opposite of resolve_kde_browser: if prefixed with !, tries to find a desktop 618# file corresponding to the binary, otherwise just returns the desktop file name. 619resolve_kde_browser_desktop() 620{ 621 [ -z "$browser" ] && return 622 case "$browser" in 623 !*) 624 desktop="`binary_to_desktop_file "${browser#!}"`" 625 basename "$desktop" 626 ;; 627 *) 628 echo "$browser" 629 ;; 630 esac 631} 632 633read_kde_browser() 634{ 635 read_kde_config kdeglobals General BrowserApplication 636} 637 638get_browser_kde() 639{ 640 browser="`read_kde_browser`" 641 if [ x"$browser" = x ]; then 642 # No explicit default browser; KDE will use the MIME type text/html. 643 get_browser_mime 644 else 645 resolve_kde_browser_desktop 646 fi 647} 648 649check_browser_kde() 650{ 651 check="`desktop_file_to_binary "$1"`" 652 if [ -z "$check" ]; then 653 echo no 654 exit_success 655 fi 656 browser="`read_kde_browser`" 657 binary="`resolve_kde_browser`" 658 # Because KDE will use the handler for MIME type text/html if this value 659 # is empty, we allow either the empty string or a match to $check here. 660 if [ x"$binary" != x -a x"$binary" != x"$check" ]; then 661 echo no 662 exit_success 663 fi 664 browser="`get_browser_mime`" 665 binary="`desktop_file_to_binary "$browser"`" 666 if [ x"$binary" != x"$check" ]; then 667 echo no 668 exit_success 669 fi 670 echo yes 671 exit_success 672} 673 674set_browser_kde() 675{ 676 set_browser_mime "$1" || return 677 kwriteconfig --file kdeglobals --group General --key BrowserApplication "$1" 678} 679 680# }}} KDE 681# {{{ GNOME 682 683get_browser_gnome() 684{ 685 binary="`gconftool-2 --get /desktop/gnome/applications/browser/exec | first_word`" 686 if [ x"$binary" = x ]; then 687 # No default browser; GNOME might use the MIME type text/html. 688 get_browser_mime 689 else 690 # gconftool gives the binary (maybe with %s etc. afterward), 691 # but we want the desktop file name, not the binary. So, we 692 # have to find the desktop file to which it corresponds. 693 desktop="`binary_to_desktop_file "$binary"`" 694 basename "$desktop" 695 fi 696} 697 698check_browser_gnome() 699{ 700 check="`desktop_file_to_binary "$1"`" 701 if [ -z "$check" ]; then 702 echo no 703 exit_success 704 fi 705 binary="`gconftool-2 --get /desktop/gnome/applications/browser/exec | first_word`" 706 if [ x"$binary" != x"$check" ]; then 707 echo no 708 exit_success 709 fi 710 # Check HTTP and HTTPS, but not about: and unknown:. 711 for protocol in http https; do 712 binary="`gconftool-2 --get /desktop/gnome/url-handlers/$protocol/command | first_word`" 713 if [ x"$binary" != x"$check" ]; then 714 echo no 715 exit_success 716 fi 717 done 718 browser="`get_browser_mime`" 719 binary="`desktop_file_to_binary "$browser"`" 720 if [ x"$binary" != x"$check" ]; then 721 echo no 722 exit_success 723 fi 724 echo yes 725 exit_success 726} 727 728set_browser_gnome() 729{ 730 binary="`desktop_file_to_binary "$1"`" 731 [ "$binary" ] || exit_failure_file_missing 732 set_browser_mime "$1" || return 733 734 # Set the default browser. 735 gconftool-2 --type string --set /desktop/gnome/applications/browser/exec "$binary" 736 gconftool-2 --type bool --set /desktop/gnome/applications/browser/needs_term false 737 gconftool-2 --type bool --set /desktop/gnome/applications/browser/nremote true 738 # Set the handler for HTTP and HTTPS. 739 for protocol in http https; do 740 gconftool-2 --type string --set /desktop/gnome/url-handlers/$protocol/command "$binary %s" 741 gconftool-2 --type bool --set /desktop/gnome/url-handlers/$protocol/needs_terminal false 742 gconftool-2 --type bool --set /desktop/gnome/url-handlers/$protocol/enabled true 743 done 744 # Set the handler for about: and unknown URL types. 745 for protocol in about unknown; do 746 gconftool-2 --type string --set /desktop/gnome/url-handlers/$protocol/command "$binary %s" 747 done 748} 749 750# }}} GNOME 751# {{{ GNOME 3.x 752 753get_browser_gnome3() 754{ 755 get_browser_mime "x-scheme-handler/http" 756} 757 758check_browser_gnome3() 759{ 760 desktop="$1" 761 check="`desktop_file_to_binary "$1"`" 762 if [ -z "$check" ]; then 763 echo no 764 exit_success 765 fi 766 # Check HTTP and HTTPS, but not about: and unknown:. 767 for protocol in http https; do 768 browser="`get_browser_mime "x-scheme-handler/$protocol"`" 769 if [ x"$browser" != x"$desktop" ]; then 770 echo no 771 exit_success 772 fi 773 done 774 echo yes 775 exit_success 776} 777 778set_browser_gnome3() 779{ 780 binary="`desktop_file_to_binary "$1"`" 781 [ "$binary" ] || exit_failure_file_missing 782 set_browser_mime "$1" || return 783 784 # Set the default browser. 785 for protocol in http https about unknown; do 786 set_browser_mime "$1" "x-scheme-handler/$protocol" || return 787 done 788} 789# }}} GNOME 3.x 790# {{{ xfce 791 792get_browser_xfce() 793{ 794 search="${XDG_CONFIG_HOME:-$HOME/.config}:${XDG_CONFIG_DIRS:-/etc/xdg}" 795 IFS=: 796 for dir in $search; do 797 unset IFS 798 [ "$dir" -a -d "$dir/xfce4" ] || continue 799 file="$dir/xfce4/helpers.rc" 800 [ -r "$file" ] || continue 801 grep -q "^WebBrowser=" "$file" || continue 802 desktop="`grep "^WebBrowser=" "$file" | cut -d= -f 2-`" 803 echo "$desktop.desktop" 804 return 805 done 806 exit_failure_operation_failed 807} 808 809check_browser_xfce() 810{ 811 browser="`get_browser_xfce`" 812 if [ x"$browser" != x"$1" ]; then 813 echo no 814 exit_success 815 fi 816 echo yes 817 exit_success 818} 819 820check_xfce_desktop_file() 821{ 822 # Annoyingly, xfce wants its .desktop files in a separate directory instead 823 # of the standard locations, and requires a few custom tweaks to them: 824 # "Type" must be "X-XFCE-Helper" 825 # "X-XFCE-Category" must be "WebBrowser" (for web browsers, anyway) 826 # "X-XFCE-Commands" and "X-XFCE-CommandsWithParameter" must be set 827 search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}" 828 IFS=: 829 for dir in $search; do 830 unset IFS 831 [ "$dir" -a -d "$dir/xfce4/helpers" ] || continue 832 file="$dir/xfce4/helpers/$1" 833 # We have the file, no need to create it. 834 [ -r "$file" ] && return 835 done 836 IFS=: 837 for dir in $search; do 838 unset IFS 839 [ "$dir" -a -d "$dir/applications" ] || continue 840 file="$dir/applications/$1" 841 if [ -r "$file" ]; then 842 # Found a file to convert. 843 target="${XDG_DATA_HOME:-$HOME/.local/share}/xfce4/helpers" 844 mkdir -p "$target" 845 grep -v "^Type=" "$file" > "$target/$1" 846 echo "Type=X-XFCE-Helper" >> "$target/$1" 847 echo "X-XFCE-Category=WebBrowser" >> "$target/$1" 848 # Change %F, %f, %U, and %u to "%s". 849 command="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | sed -e 's/%[FfUu]/"%s"/g'`" 850 echo "X-XFCE-Commands=`echo "$command" | first_word`" >> "$target/$1" 851 echo "X-XFCE-CommandsWithParameter=$command" >> "$target/$1" 852 return 853 fi 854 done 855 return 1 856} 857 858set_browser_xfce() 859{ 860 check_xfce_desktop_file "$1" || exit_failure_operation_failed 861 862 helper_dir="${XDG_CONFIG_HOME:-$HOME/.config}/xfce4" 863 if [ ! -d "$helper_dir" ]; then 864 mkdir -p "$helper_dir" || exit_failure_operation_failed 865 fi 866 867 helpers_rc="$helper_dir/helpers.rc" 868 # Create the file if it does not exist to avoid special cases below. 869 if [ ! -r "$helpers_rc" ]; then 870 touch "$helpers_rc" || exit_failure_operation_failed 871 fi 872 873 temp="`mktemp "$helpers_rc.XXXXXX"`" || return 874 grep -v "^WebBrowser=" "$helpers_rc" >> "$temp" 875 echo "WebBrowser=${1%.desktop}" >> "$temp" 876 877 oldlines="`wc -l < "$helpers_rc"`" 878 newlines="`wc -l < "$temp"`" 879 # The new file should have at least as many lines as the old. 880 if [ $oldlines -le $newlines ]; then 881 mv "$temp" "$helpers_rc" 882 else 883 rm -f "$temp" 884 return 1 885 fi 886} 887 888# }}} xfce 889# }}} default browser 890 891# {{{ default url scheme handler 892 893exit_unimplemented_default_handler() 894{ 895 exit_failure_operation_impossible "default-url-scheme-handler not implemented for $DE" 896} 897 898# {{{ KDE 899 900# Recent versions of KDE support default scheme handler applications using the 901# mime type of x-scheme-handler/scheme. Older versions will not support this 902# but do have support for setting a default mail handler. There is also a 903# system in KDE where .protocol files can be used, however this is not 904# supported by this script. When reading a scheme handler we will use the 905# default mail handler for the mailto scheme, otherwise we will use the mime 906# type x-scheme-handler/scheme. 907 908get_url_scheme_handler_kde() 909{ 910 if [ "$1" = "mailto" ]; then 911 handler="`read_kde_config emaildefaults PROFILE_Default EmailClient | first_word`" 912 echo "handler is $handler" 913 if [ x"$handler" != x ]; then 914 binary_to_desktop_file "$handler" 915 else 916 get_browser_mime "x-scheme-handler/$1" 917 fi 918 else 919 get_browser_mime "x-scheme-handler/$1" 920 fi 921} 922 923check_url_scheme_handler_kde() 924{ 925 check="`desktop_file_to_binary "$2"`" 926 if [ -z "$check" ]; then 927 echo no 928 exit_success 929 fi 930 if [ x"$1" = "mailto" ]; then 931 binary="`read_kde_config emaildefaults PROFILE_Default EmailClient`" 932 if [ x"$binary" != x"$check" ]; then 933 echo no 934 exit_success 935 fi 936 fi 937 handler="`get_browser_mime x-scheme-handler/$1`" 938 binary="`desktop_file_to_binary "$handler"`" 939 if [ x"$binary" != x"$check" ]; then 940 echo no 941 exit_success 942 fi 943 echo yes 944 exit_success 945} 946 947set_url_scheme_handler_kde() 948{ 949 set_browser_mime "$2" "x-scheme-handler/$1" || return 950 if [ "$1" = "mailto" ]; then 951 binary="`desktop_file_to_binary "$2"`" 952 kwriteconfig --file emaildefaults --group PROFILE_Default --key EmailClient "$binary" 953 fi 954} 955 956# }}} KDE 957# {{{ GNOME 958 959get_url_scheme_handler_gnome() 960{ 961 binary="`gconftool-2 --get /desktop/gnome/url-handlers/$1/command | first_word`" 962 if [ x"$binary" != x"" ]; then 963 # gconftool gives the binary (maybe with %s etc. afterward), 964 # but we want the desktop file name, not the binary. So, we 965 # have to find the desktop file to which it corresponds. 966 desktop="`binary_to_desktop_file "$binary"`" 967 basename "$desktop" 968 fi 969} 970 971check_url_scheme_handler_gnome() 972{ 973 check="`desktop_file_to_binary "$2"`" 974 if [ -z "$check" ]; then 975 echo no 976 exit_success 977 fi 978 binary="`gconftool-2 --get /desktop/gnome/url-handlers/$1/command | first_word`" 979 if [ x"$binary" != x"$check" ]; then 980 echo no 981 exit_success 982 fi 983 echo yes 984 exit_success 985} 986 987set_url_scheme_handler_gnome() 988{ 989 binary="`desktop_file_to_binary "$2"`" 990 [ "$binary" ] || exit_failure_file_missing 991 992 gconftool-2 --type string --set /desktop/gnome/url-handlers/$1/command "$binary %s" 993 gconftool-2 --type bool --set /desktop/gnome/url-handlers/$1/needs_terminal false 994 gconftool-2 --type bool --set /desktop/gnome/url-handlers/$1/enabled true 995} 996 997# }}} GNOME 998# {{{ GNOME 3.x 999 1000get_url_scheme_handler_gnome3() 1001{ 1002 get_browser_mime "x-scheme-handler/$1" 1003} 1004 1005check_url_scheme_handler_gnome3() 1006{ 1007 desktop="$2" 1008 check="`desktop_file_to_binary "$2"`" 1009 if [ -z "$check" ]; then 1010 echo no 1011 exit_success 1012 fi 1013 browser="`get_browser_mime "x-scheme-handler/$1"`" 1014 if [ x"$browser" != x"$desktop" ]; then 1015 echo no 1016 exit_success 1017 fi 1018 echo yes 1019 exit_success 1020} 1021 1022set_url_scheme_handler_gnome3() 1023{ 1024 binary="`desktop_file_to_binary "$2"`" 1025 [ "$binary" ] || exit_failure_file_missing 1026 set_browser_mime "$2" || return 1027 1028 # Set the default browser. 1029 set_browser_mime "$2" "x-scheme-handler/$1" || return 1030} 1031 1032# }}} GNOME 3.x 1033# {{{ xfce 1034 1035get_url_scheme_handler_xfce() 1036{ 1037 exit_unimplemented_default_handler "$1" 1038} 1039 1040check_url_scheme_handler_xfce() 1041{ 1042 exit_unimplemented_default_handler "$1" 1043} 1044 1045set_url_scheme_handler_xfce() 1046{ 1047 exit_unimplemented_default_handler "$1" 1048} 1049 1050# }}} xfce 1051# }}} default protocol handler 1052 1053dispatch_specific() 1054{ 1055 # The PROP comments in this function are used to generate the output of 1056 # the --list option. The formatting is important. Make sure to line up the 1057 # property descriptions with spaces so that it will look nice. 1058 if [ x"$op" = x"get" ]; then 1059 case "$parm" in 1060 default-web-browser) # PROP: Default web browser 1061 get_browser_$DE 1062 ;; 1063 1064 default-url-scheme-handler) # PROP: Default handler for URL scheme 1065 get_url_scheme_handler_$DE "$1" 1066 ;; 1067 1068 *) 1069 exit_failure_syntax 1070 ;; 1071 esac 1072 elif [ x"$op" = x"check" ]; then 1073 case "$parm" in 1074 default-web-browser) 1075 check_desktop_filename "$1" 1076 check_browser_$DE "$1" 1077 ;; 1078 1079 default-url-scheme-handler) 1080 check_desktop_filename "$2" 1081 check_url_scheme_handler_$DE "$1" "$2" 1082 ;; 1083 1084 *) 1085 exit_failure_syntax 1086 ;; 1087 esac 1088 else # set 1089 case "$parm" in 1090 default-web-browser) 1091 [ $# -eq 1 ] || exit_failure_syntax "unexpected/missing argument" 1092 check_desktop_filename "$1" 1093 set_browser_$DE "$1" 1094 ;; 1095 1096 default-url-scheme-handler) 1097 [ $# -eq 2 ] || exit_failure_syntax "unexpected/missing argument" 1098 check_desktop_filename "$2" 1099 set_url_scheme_handler_$DE "$1" "$2" 1100 ;; 1101 1102 *) 1103 exit_failure_syntax 1104 ;; 1105 esac 1106 fi 1107 1108 if [ $? -eq 0 ]; then 1109 exit_success 1110 else 1111 exit_failure_operation_failed 1112 fi 1113} 1114 1115dispatch_generic() 1116{ 1117 # We only know how to get or check the default web browser. 1118 [ x"$op" != x"get" -a x"$op" != x"check" ] && exit_failure_operation_impossible 1119 [ x"$parm" != x"default-web-browser" ] && exit_failure_operation_impossible 1120 1121 # First look in $BROWSER 1122 if [ x"$BROWSER" != x ]; then 1123 binary="`which "${BROWSER%%:*}"`" 1124 else 1125 # Debian and Ubuntu (and others?) have x-www-browser. 1126 binary="`which x-www-browser`" 1127 fi 1128 1129 [ "$binary" ] || exit_failure_operation_failed 1130 1131 binary="`readlink -f "$binary"`" 1132 1133 [ "$binary" ] || exit_failure_operation_failed 1134 1135 if [ x"$op" = x"get" ]; then 1136 desktop="`binary_to_desktop_file "$binary"`" 1137 basename "$desktop" 1138 else 1139 # $op = "check" 1140 check="`desktop_file_to_binary "$1"`" 1141 if [ -z "$check" ]; then 1142 echo no 1143 exit_success 1144 fi 1145 if [ x"$binary" != x"$check" ]; then 1146 echo no 1147 exit_success 1148 fi 1149 echo yes 1150 fi 1151 exit_success 1152} 1153 1154if [ x"$1" = x"--list" ]; then 1155 echo "Known properties:" 1156 # Extract the property names from dispatch_specific() above. 1157 grep "^[ ]*[^)]*) # PROP:" "$0" | sed -e 's/^[ ]*\([^)]*\)) # PROP: \(.*\)$/ \1 \2/' | sort 1158 exit_success 1159fi 1160 1161[ x"$1" != x ] || exit_failure_syntax "no operation given" 1162[ x"$2" != x ] || exit_failure_syntax "no parameter name given" 1163[ x"$1" = x"get" -o x"$3" != x ] || exit_failure_syntax "no parameter value given" 1164 1165op="$1" 1166parm="$2" 1167shift 2 1168 1169if [ x"$op" != x"get" -a x"$op" != x"check" -a x"$op" != x"set" ]; then 1170 exit_failure_syntax "invalid operation" 1171fi 1172 1173detectDE 1174 1175case "$DE" in 1176 kde|gnome*|xfce) 1177 dispatch_specific "$@" 1178 ;; 1179 1180 generic) 1181 dispatch_generic "$@" 1182 ;; 1183 1184 *) 1185 exit_failure_operation_impossible "unknown desktop environment" 1186 ;; 1187esac 1188