Script to automatically update firefox since it's not great at doing
this on it's own
This commit is contained in:
John Mertz
parent
0a65577304
commit
93a185960f
GPG Key ID:
E9C5EA2D867501AB
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#!/usr/bin/perl
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use strict;
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use warnings;
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use IO::Prompter;
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use File::Which qw( which );
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# Configurable variables
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my $lang = 'en-CA';
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my $install = "$ENV{HOME}/.local/bin";
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my $working = "/tmp/firefox.new";
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# Download link as provided by https://www.mozilla.org/$lang/firefox/developer/
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my $url = 'https://download.mozilla.org/?product=firefox-devedition-latest-ssl&os=linux64&lang='.$lang;
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# Ensure that we can unzip
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unless (which("bunzip2")) {
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die "Requires bunzip2. Try:\nsudo apt install zutils or your distro's equivalent\n";
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}
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# Only understood argument is to not bother verifying the package
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my ($download_key, $verify) = (0,1);
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if (defined $ARGV[0]) {
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if ($ARGV[0] eq '--no-verify') {
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$verify = 0;
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} else {
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die "Didn't understand argument $ARGV[0]\n";
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}
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}
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# If verification is to be done, make sure we have the key
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unless ($verify) {
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print "Checking for Mozilla GPG key in keyring...\n";
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system("gpg --list-keys release\@mozillla.com 2>&1 > /dev/null");
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if ($?) {
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my $YN = prompt (-in => *STDIN, "You don't currently have Mozilla's GPG key in your keyring.\nWould you like to install it? If not, installation will not be verified. [y/N]: ", -single);
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if ($YN eq 'y' || $YN eq 'Y') {
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$download_key = 1;
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} else {
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$verify = 0;
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}
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}
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}
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# If a previous download still exists remove it
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if ( -e $working ) {
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system("rm -rf $working");
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if ($?) {
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die "Working directory $working already exists and failed to remove: $!\n";
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}
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}
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# Get version currently installed
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my $current = `$install/firefox/firefox-bin --version`;
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$current =~ s/.*\s([^\s])/$1/;
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chomp $current;
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use WWW::Mechanize;
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my $mech = WWW::Mechanize->new();
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# $url is actually going to redirect to the proper current dowload, so just get the redirect.
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my $head = $mech->head($url);
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my ($location, $version);
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# This redirect will have the version id, so we can use that to determine if a new version actually exists
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if ($head->{'_msg'}) {
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$version = $location = $head->{'_previous'}->{'_headers'}->{'location'};
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$version =~ s/^.*\-([^\-]*)\.tar\.bz2$/$1/;
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if ($version eq $current) {
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die "Current ($current) is the same as New ($version)\n";
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}
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} else {
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print "unable to find new download\n";
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}
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mkdir($working) || die "Couldn't make $working: $!\n";
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# Download package
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print "Fetching package $location...\n";
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$mech->get($location);
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$mech->save_content( $working."/firefox-".$version.".tar.bz2", binmode => ':raw', decoded_by_headers => 1 );
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# If verification is required, get signature as well
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if ($verify) {
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$location .= '.asc';
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print "Fetching GPG signature $location...\n";
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$mech->get($location);
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$mech->save_content( $working."/firefox-".$version.".tar.bz2.asc", binmode => ':raw', decoded_by_headers => 1 );
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}
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# If key still needs to be fetched, get it
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if ($download_key) {
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$location =~ s/linux-x86_64.*$/KEY/;
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print "Fetching GPG key $location...\n";
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$mech->get($location);
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$mech->save_content( $working."/mozilla.pgp", binmode => ':raw', decoded_by_headers => 1 );
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# And install it
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print "Installing Mozilla GPG key in keyring...\n";
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system("gpg --import $working/mozilla.pgp 2>&1 > /dev/null");
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if ($?) {
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die "Warning: failed to import key. Cannot verify integrity.\nDownloaded to $working. You can check and install it to $install manually: $!\n";
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}
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unlink("$working/mozilla.pgp");
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}
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# Verify the package
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if ($verify) {
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print "Verifying download with Mozilla GPG key...\n";
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system("gpg --verify $working/firefox-$version.tar.bz2.asc");
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if ($?) {
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die "Warning: failed to verify download. Signing failed.\nDownloaded to $working. You can check and install it to $install manually: $!\n";
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}
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}
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# Uncompress
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print "Uncompressing download with bunzip2...\n";
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system("bunzip2 $working/firefox-$version.tar.bz2");
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if ($?) {
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die "Failed to uncompress: $!\n";
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}
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# Extract
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print "Extracting from TAR archive...\n";
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system("tar -xf $working/firefox-$version.tar -C $working");
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if ($?) {
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die "Failed to extract: $!\n";
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}
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# Bin the old backup
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if (-e "$install/.firefox.old") {
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print "Removing previous backup folder...\n";
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system("rm -rf $install/.firefox.old");
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if ($?) {
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die "Failed to remove: $!\n";
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}
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}
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# Move current to old
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print "Backing up currently installed version ($current) to $install/.firefox.old...\n";
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system("mv $install/firefox $install/.firefox.old");
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if ($?) {
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die "Failed to move: $!\n";
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}
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# Move new to current
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print "Moving new version to $install for final installation...\n";
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system("mv $working/firefox $install/");
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if ($?) {
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die "Failed to move: $!\n";
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}
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# Hurray!
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print "Installation of version $version complete. You should restart firefox whenever it is convenient.\n";
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exit();
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