696 lines
22 KiB
Perl
696 lines
22 KiB
Perl
# The contents of this file are subject to the Mozilla Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# The Original Code is the Bugzilla Bug Tracking System.
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#
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# Contributor(s): Max Kanat-Alexander <mkanat@bugzilla.org>
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# Bill Barry <after.fallout@gmail.com>
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package Bugzilla::Install::Filesystem;
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# NOTE: This package may "use" any modules that it likes,
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# and localconfig is available. However, all functions in this
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# package should assume that:
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#
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# * Templates are not available.
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# * Files do not have the correct permissions.
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# * The database does not exist.
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use strict;
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use Bugzilla::Constants;
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use Bugzilla::Error;
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use Bugzilla::Install::Localconfig;
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use Bugzilla::Install::Util qw(install_string);
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use Bugzilla::Util;
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use File::Find;
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use File::Path;
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use File::Basename;
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use File::Copy qw(move);
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use IO::File;
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use POSIX ();
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use base qw(Exporter);
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our @EXPORT = qw(
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update_filesystem
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create_htaccess
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fix_all_file_permissions
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fix_file_permissions
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);
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use constant HT_DEFAULT_DENY => <<EOT;
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# nothing in this directory is retrievable unless overridden by an .htaccess
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# in a subdirectory
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deny from all
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EOT
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# This looks like a constant because it effectively is, but
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# it has to call other subroutines and read the current filesystem,
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# so it's defined as a sub. This is not exported, so it doesn't have
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# a perldoc. However, look at the various hashes defined inside this
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# function to understand what it returns. (There are comments throughout.)
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#
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# The rationale for the file permissions is that there is a group the
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# web server executes the scripts as, so the cgi scripts should not be writable
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# by this group. Otherwise someone may find it possible to change the cgis
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# when exploiting some security flaw somewhere (not necessarily in Bugzilla!)
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sub FILESYSTEM
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{
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my $datadir = bz_locations()->{datadir};
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my $attachdir = bz_locations()->{attachdir};
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my $extensionsdir = bz_locations()->{extensionsdir};
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my $webdotdir = bz_locations()->{webdotdir};
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my $templatedir = bz_locations()->{templatedir};
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my $libdir = bz_locations()->{libpath};
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my $extlib = bz_locations()->{ext_libpath};
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my $skinsdir = bz_locations()->{skinsdir};
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my $localconfig = bz_locations()->{localconfig};
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my $graphsdir = bz_locations()->{graphsdir};
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# We want to set the permissions the same for all localconfig files
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# across all PROJECTs, so we do something special with $localconfig,
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# lower down in the permissions section.
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if ($ENV{PROJECT})
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{
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$localconfig =~ s/\.\Q$ENV{PROJECT}\E$//;
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}
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my $ws_group = Bugzilla->localconfig->{webservergroup};
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my $use_suexec = Bugzilla->localconfig->{use_suexec};
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# The set of permissions that we use:
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# FILES
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# Executable by the web server
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my $ws_executable = $ws_group ? 0750 : 0755;
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# Executable by the owner only.
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my $owner_executable = 0700;
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# Readable by the web server.
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my $ws_readable = ($ws_group && !$use_suexec) ? 0640 : 0644;
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# Readable by the owner only.
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my $owner_readable = 0600;
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# Writeable by the web server.
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my $ws_writeable = $ws_group ? 0660 : 0666;
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# Script-readable files that should not be world-readable under suexec.
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my $script_readable = $use_suexec ? 0640 : $ws_readable;
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# DIRECTORIES
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# Readable by the web server.
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my $ws_dir_readable = ($ws_group && !$use_suexec) ? 0750 : 0755;
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# Readable only by the owner.
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my $owner_dir_readable = 0700;
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# Writeable by the web server.
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my $ws_dir_writeable = $ws_group ? 0770 : 01777;
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# The web server can overwrite files owned by other users, in this directory.
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my $ws_dir_full_control = $ws_group ? 0770 : 0777;
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# Note: When being processed by checksetup, these have their permissions
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# set in this order: %recurse_dirs, %all_files.
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#
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# Each is processed in alphabetical order of keys, so shorter keys
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# will have their permissions set before longer keys (thus setting
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# the permissions on parent directories before setting permissions
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# on their children).
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# --- FILE PERMISSIONS (Created files) --- #
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my %files = (
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# Set the permissions for localconfig the same across all PROJECTs.
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$localconfig => { perms => $script_readable },
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"$localconfig.*" => { perms => $script_readable },
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"$localconfig.old" => { perms => $owner_readable },
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"$datadir/params" => { perms => $ws_writeable },
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);
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# This sets the permissions for each item inside each of these directories, including the directory itself.
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my %recurse_dirs = (
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# Writeable directories
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"$datadir/template" => { files => $ws_readable, dirs => $ws_dir_full_control },
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$attachdir => { files => $ws_writeable, dirs => $ws_dir_writeable },
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$webdotdir => { files => $ws_writeable, dirs => $ws_dir_writeable },
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$graphsdir => { files => $ws_writeable, dirs => $ws_dir_writeable },
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# Readable directories
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"$datadir/mining" => { files => $ws_readable, dirs => $ws_dir_readable },
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);
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# --- FILES TO CREATE --- #
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# The name of each directory that we should actually *create*,
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# pointing at its default permissions.
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my %create_dirs = (
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$datadir => $ws_dir_full_control,
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"$datadir/mining" => $ws_dir_readable,
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$attachdir => $ws_dir_writeable,
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$graphsdir => $ws_dir_writeable,
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$webdotdir => $ws_dir_writeable,
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);
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# The name of each file, pointing at its default permissions and
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# default contents.
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my %create_files = (
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# We create this file so that it always has the right owner
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# and permissions. Otherwise, the webserver creates it as
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# owned by itself, which can cause problems if jobqueue.pl
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# or something else is not running as the webserver or root.
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"$datadir/mailer.testfile" => { perms => $ws_writeable, contents => '' },
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);
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# Because checksetup controls the .htaccess creation separately
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# by a localconfig variable, these go in a separate variable from
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# %create_files.
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my %htaccess = (
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"$attachdir/.htaccess" => { perms => $ws_readable, contents => HT_DEFAULT_DENY },
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"$libdir/Bugzilla/.htaccess" => { perms => $ws_readable, contents => HT_DEFAULT_DENY },
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"$extlib/.htaccess" => { perms => $ws_readable, contents => HT_DEFAULT_DENY },
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"$templatedir/.htaccess" => { perms => $ws_readable, contents => HT_DEFAULT_DENY },
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'contrib/.htaccess' => { perms => $ws_readable, contents => HT_DEFAULT_DENY },
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't/.htaccess' => { perms => $ws_readable, contents => HT_DEFAULT_DENY },
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'.htaccess' => { perms => $ws_readable, contents => <<EOT
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# Don't allow people to retrieve non-cgi executable files or our private data
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<FilesMatch ^(.*\\.pm|.*\\.pl|.*localconfig.*)\$>
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deny from all
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</FilesMatch>
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EOT
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},
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"$webdotdir/.htaccess" => { perms => $ws_readable, contents => <<EOT
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# Restrict access to .dot files to the public webdot server at research.att.com
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# if research.att.com ever changes their IP, or if you use a different
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# webdot server, you'll need to edit this
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<FilesMatch \\.dot\$>
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Allow from 192.20.225.0/24
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Deny from all
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</FilesMatch>
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# Allow access to .png and .svg files created by a local copy of 'dot'
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<FilesMatch \\.(png|svg)\$>
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Allow from all
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</FilesMatch>
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# And no directory listings, either.
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Deny from all
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EOT
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},
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# Even though $datadir may not (and should not) be accessible from the
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# web server, we can't know for sure, so create the .htaccess anyway.
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# It's harmless if it isn't accessible...
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"$datadir/.htaccess" => { perms => $ws_readable, contents => <<EOT
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# Nothing in this directory is retrievable unless overridden by an .htaccess
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# in a subdirectory.
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deny from all
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EOT
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},
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"$graphsdir/.htaccess" => { perms => $ws_readable, contents => <<EOT
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# Allow access to .png and .gif files.
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<FilesMatch (\\.gif|\\.png)\$>
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Allow from all
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</FilesMatch>
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# And no directory listings, either.
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Deny from all
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EOT
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},
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);
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my %all_files = (%create_files, %htaccess, %files);
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return {
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create_dirs => \%create_dirs,
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recurse_dirs => \%recurse_dirs,
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create_files => \%create_files,
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htaccess => \%htaccess,
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all_files => \%all_files,
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};
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}
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sub update_filesystem
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{
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my ($params) = @_;
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my $fs = FILESYSTEM();
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my %dirs = %{$fs->{create_dirs}};
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my %files = %{$fs->{create_files}};
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my $datadir = bz_locations->{datadir};
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my $graphsdir = bz_locations->{graphsdir};
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# If the graphs/ directory doesn't exist, we're upgrading from
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# a version old enough that we need to update the $datadir/mining
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# format.
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if (-d "$datadir/mining" && !-d $graphsdir)
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{
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_update_old_charts($datadir);
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}
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# By sorting the dirs, we assure that shorter-named directories
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# (meaning parent directories) are always created before their
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# child directories.
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foreach my $dir (sort keys %dirs)
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{
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unless (-d $dir)
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{
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print "Creating $dir directory...\n";
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mkdir $dir or die "mkdir $dir failed: $!";
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# For some reason, passing in the permissions to "mkdir"
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# doesn't work right, but doing a "chmod" does.
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chmod $dirs{$dir}, $dir or warn "Cannot chmod $dir: $!";
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}
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}
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# Move the testfile if we can't write to it, so that we can re-create
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# it with the correct permissions below.
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my $testfile = "$datadir/mailer.testfile";
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if (-e $testfile and !-w $testfile)
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{
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_rename_file($testfile, "$testfile.old");
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}
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# If old-params.txt exists in the root directory, move it to datadir.
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my $oldparamsfile = "old_params.txt";
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if (-e $oldparamsfile)
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{
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_rename_file($oldparamsfile, "$datadir/$oldparamsfile");
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}
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_create_files(%files);
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if (-e 'index.html')
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{
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my $templatedir = bz_locations()->{templatedir};
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print <<EOT;
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*** It appears that you still have an old index.html hanging around.
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Either the contents of this file should be moved into a template and
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placed in the '$templatedir/en/custom' directory, or you should delete
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the file.
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EOT
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}
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# Delete old files that no longer need to exist
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# 2001-04-29 jake@bugzilla.org - Remove oldemailtech
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# http://bugzilla.mozilla.org/show_bugs.cgi?id=71552
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if (-d 'shadow')
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{
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print "Removing shadow directory...\n";
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rmtree("shadow");
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}
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if (-e "$datadir/versioncache")
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{
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print "Removing versioncache...\n";
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unlink "$datadir/versioncache";
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}
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if (-e "$datadir/duplicates.rdf")
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{
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print "Removing duplicates.rdf...\n";
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unlink "$datadir/duplicates.rdf";
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unlink "$datadir/duplicates-old.rdf";
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}
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if (-e "$datadir/duplicates")
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{
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print "Removing duplicates directory...\n";
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rmtree("$datadir/duplicates");
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}
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}
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sub create_htaccess
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{
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_create_files(%{FILESYSTEM()->{htaccess}});
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# Repair old .htaccess files
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my $htaccess = new IO::File('.htaccess', 'r') || die ".htaccess: $!";
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my $old_data;
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{ local $/; $old_data = <$htaccess>; }
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$htaccess->close;
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my $repaired = 0;
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if ($old_data =~ s/\|localconfig\|/\|.*localconfig.*\|/)
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{
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$repaired = 1;
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}
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if ($old_data !~ /\(\.\*\\\.pm\|/)
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{
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$old_data =~ s/\(/(.*\\.pm\|/;
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$repaired = 1;
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}
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if ($repaired)
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{
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print "Repairing .htaccess...\n";
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$htaccess = new IO::File('.htaccess', 'w') || die $!;
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print $htaccess $old_data;
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$htaccess->close;
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}
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my $webdot_dir = bz_locations()->{webdotdir};
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# The public webdot IP address changed.
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my $webdot = new IO::File("$webdot_dir/.htaccess", 'r')
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|| die "$webdot_dir/.htaccess: $!";
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my $webdot_data;
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{ local $/; $webdot_data = <$webdot>; }
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$webdot->close;
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if ($webdot_data =~ /192\.20\.225\.10/)
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{
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print "Repairing $webdot_dir/.htaccess...\n";
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$webdot_data =~ s/192\.20\.225\.10/192.20.225.0\/24/g;
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$webdot = new IO::File("$webdot_dir/.htaccess", 'w') || die $!;
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print $webdot $webdot_data;
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$webdot->close;
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}
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}
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sub _rename_file
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{
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my ($from, $to) = @_;
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print "Renaming $from to $to...\n";
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if (-e $to)
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{
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warn "$to already exists, not moving\n";
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}
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else
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{
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move($from, $to) or warn $!;
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}
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}
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# A helper for the above functions.
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sub _create_files
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{
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my (%files) = @_;
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# It's not necessary to sort these, but it does make the
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# output of checksetup.pl look a bit nicer.
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foreach my $file (sort keys %files)
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{
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unless (-e $file)
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{
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print "Creating $file...\n";
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my $info = $files{$file};
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my $fh = new IO::File($file, O_WRONLY | O_CREAT, $info->{perms})
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|| die $!;
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print $fh $info->{contents} if $info->{contents};
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$fh->close;
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}
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}
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}
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# If you ran a REALLY old version of Bugzilla, your chart files are in the
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# wrong format. This code is a little messy, because it's very old, and
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# when moving it into this module, I couldn't test it so I left it almost
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# completely alone.
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sub _update_old_charts
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{
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my ($datadir) = @_;
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print "Updating old chart storage format...\n";
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foreach my $in_file (glob("$datadir/mining/*"))
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{
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# Don't try and upgrade image or db files!
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next if $in_file =~ /\.(gif|png|db|orig)$/i;
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rename("$in_file", "$in_file.orig") or next;
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open(IN, "$in_file.orig") or next;
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open(OUT, '>', $in_file) or next;
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# Fields in the header
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my @declared_fields;
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# Fields we changed to half way through by mistake
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# This list comes from an old version of collectstats.pl
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# This part is only for people who ran later versions of 2.11 (devel)
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my @intermediate_fields = qw(DATE UNCONFIRMED NEW ASSIGNED REOPENED RESOLVED VERIFIED CLOSED);
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# Fields we actually want (matches the current collectstats.pl)
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my @out_fields = qw(
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DATE NEW ASSIGNED REOPENED UNCONFIRMED RESOLVED VERIFIED CLOSED
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FIXED INVALID WONTFIX LATER REMIND DUPLICATE WORKSFORME MOVED
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);
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while (<IN>)
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{
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if (/^# fields?: (.*)\s$/)
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{
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@declared_fields = map uc, (split /\||\r/, $1);
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print OUT "# fields: ", join('|', @out_fields), "\n";
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}
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elsif (/^(\d+\|.*)/)
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{
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my @data = split(/\||\r/, $1);
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my %data;
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if (@data == @declared_fields)
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{
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# old format
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for my $i (0 .. $#declared_fields)
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{
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$data{$declared_fields[$i]} = $data[$i];
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}
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}
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elsif (@data == @intermediate_fields)
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{
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# Must have changed over at this point
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for my $i (0 .. $#intermediate_fields)
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{
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$data{$intermediate_fields[$i]} = $data[$i];
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}
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}
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elsif (@data == @out_fields)
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{
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# This line's fine - it has the right number of entries
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for my $i (0 .. $#out_fields)
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{
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$data{$out_fields[$i]} = $data[$i];
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}
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}
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else
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{
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print "Oh dear, input line $. of $in_file had " .
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scalar(@data) . " fields\nThis was unexpected.",
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" You may want to check your data files.\n";
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}
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print OUT join('|',
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map { defined ($data{$_}) ? ($data{$_}) : "" } @out_fields),
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"\n";
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}
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else
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{
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print OUT;
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}
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}
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close(IN);
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close(OUT);
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}
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}
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sub fix_file_permissions
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{
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my ($file) = @_;
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|
return if ON_WINDOWS;
|
|
my $perms = FILESYSTEM()->{all_files}->{$file}->{perms};
|
|
# Note that _get_owner_and_group is always silent here.
|
|
my ($owner_id, $group_id) = _get_owner_and_group();
|
|
_fix_perms($file, $owner_id, $group_id, $perms);
|
|
}
|
|
|
|
sub fix_all_file_permissions
|
|
{
|
|
my ($output) = @_;
|
|
|
|
# _get_owner_and_group also checks that the webservergroup is valid.
|
|
my ($owner_id, $group_id) = _get_owner_and_group($output);
|
|
|
|
return if ON_WINDOWS;
|
|
|
|
my $fs = FILESYSTEM();
|
|
my %files = %{$fs->{all_files}};
|
|
my %dirs = %{$fs->{create_dirs}};
|
|
my %recurse_dirs = %{$fs->{recurse_dirs}};
|
|
|
|
print get_text('install_file_perms_fix') . "\n" if $output;
|
|
|
|
foreach my $dir (sort keys %dirs)
|
|
{
|
|
next unless -d $dir;
|
|
_fix_perms($dir, $owner_id, $group_id, $dirs{$dir});
|
|
}
|
|
|
|
foreach my $pattern (sort keys %recurse_dirs)
|
|
{
|
|
my $perms = $recurse_dirs{$pattern};
|
|
# %recurse_dirs supports globs
|
|
foreach my $dir (glob $pattern)
|
|
{
|
|
next unless -d $dir;
|
|
_fix_perms_recursively($dir, $owner_id, $group_id, $perms);
|
|
}
|
|
}
|
|
|
|
foreach my $file (sort keys %files)
|
|
{
|
|
# %files supports globs
|
|
foreach my $filename (glob $file)
|
|
{
|
|
# Don't touch directories.
|
|
next if -d $filename || !-e $filename;
|
|
_fix_perms($filename, $owner_id, $group_id, $files{$file}->{perms});
|
|
}
|
|
}
|
|
}
|
|
|
|
sub _get_owner_and_group
|
|
{
|
|
my ($output) = @_;
|
|
my $group_id = _check_web_server_group($output);
|
|
return () if ON_WINDOWS;
|
|
|
|
my $owner_id = POSIX::getuid();
|
|
$group_id = POSIX::getgid() unless defined $group_id;
|
|
return ($owner_id, $group_id);
|
|
}
|
|
|
|
sub _fix_perms
|
|
{
|
|
my ($name, $owner, $group, $perms) = @_;
|
|
#printf ("Changing $name to %o\n", $perms);
|
|
|
|
# The webserver should never try to chown files.
|
|
if (Bugzilla->usage_mode == USAGE_MODE_CMDLINE)
|
|
{
|
|
chown $owner, $group, $name
|
|
or warn install_string('chown_failed', { path => $name, error => $! }) . "\n";
|
|
}
|
|
chmod $perms, $name
|
|
or warn install_string('chmod_failed', { path => $name, error => $! }) . "\n";
|
|
}
|
|
|
|
sub _fix_perms_recursively
|
|
{
|
|
my ($dir, $owner_id, $group_id, $perms) = @_;
|
|
# Set permissions on the directory itself.
|
|
_fix_perms($dir, $owner_id, $group_id, $perms->{dirs});
|
|
# Now recurse through the directory and set the correct permissions
|
|
# on subdirectories and files.
|
|
find({ no_chdir => 1, wanted => sub
|
|
{
|
|
my $name = $File::Find::name;
|
|
if (-d $name)
|
|
{
|
|
_fix_perms($name, $owner_id, $group_id, $perms->{dirs});
|
|
}
|
|
else
|
|
{
|
|
_fix_perms($name, $owner_id, $group_id, $perms->{files});
|
|
}
|
|
}}, $dir);
|
|
}
|
|
|
|
sub _check_web_server_group
|
|
{
|
|
my ($output) = @_;
|
|
|
|
my $group = Bugzilla->localconfig->{webservergroup};
|
|
my $filename = bz_locations()->{localconfig};
|
|
my $group_id;
|
|
|
|
# If we are on Windows, webservergroup does nothing
|
|
if (ON_WINDOWS && $group && $output)
|
|
{
|
|
print "\n\n" . get_text('install_webservergroup_windows') . "\n\n";
|
|
}
|
|
|
|
# If we're not on Windows, make sure that webservergroup isn't
|
|
# empty.
|
|
elsif (!ON_WINDOWS && !$group && $output)
|
|
{
|
|
print "\n\n" . get_text('install_webservergroup_empty') . "\n\n";
|
|
}
|
|
|
|
# If we're not on Windows, make sure we are actually a member of
|
|
# the webservergroup.
|
|
elsif (!ON_WINDOWS && $group)
|
|
{
|
|
$group_id = getgrnam($group);
|
|
ThrowCodeError('invalid_webservergroup', { group => $group })
|
|
unless defined $group_id;
|
|
|
|
# If on unix, see if we need to print a warning about a webservergroup
|
|
# that we can't chgrp to
|
|
if ($output && $< != 0 && !grep($_ eq $group_id, split(" ", $))))
|
|
{
|
|
print "\n\n" . get_text('install_webservergroup_not_in') . "\n\n";
|
|
}
|
|
}
|
|
|
|
return $group_id;
|
|
}
|
|
|
|
1;
|
|
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
Bugzilla::Install::Filesystem - Fix up the filesystem during
|
|
installation.
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
This module is used primarily by L<checksetup.pl> to modify the
|
|
filesystem during installation, including creating the data/ directory.
|
|
|
|
=head1 SUBROUTINES
|
|
|
|
=over
|
|
|
|
=item C<update_filesystem()>
|
|
|
|
Description: Creates all the directories and files that Bugzilla
|
|
needs to function but doesn't ship with. Also does
|
|
any updates to these files as necessary during an
|
|
upgrade.
|
|
|
|
Returns: nothing
|
|
|
|
=item C<create_htaccess()>
|
|
|
|
Description: Creates all of the .htaccess files for Apache,
|
|
in the various Bugzilla directories. Also updates
|
|
the .htaccess files if they need updating.
|
|
|
|
Params: none
|
|
|
|
Returns: nothing
|
|
|
|
=item C<fix_all_file_permissions($output)>
|
|
|
|
Description: Sets all the file permissions on all of Bugzilla's files
|
|
to what they should be. Note that permissions are different
|
|
depending on whether or not C<$webservergroup> is set
|
|
in F<localconfig>.
|
|
|
|
Params: C<$output> - C<true> if you want this function to print
|
|
out information about what it's doing.
|
|
|
|
Returns: nothing
|
|
|
|
=item C<fix_file_permissions>
|
|
|
|
Given the name of a file, its permissions will be fixed according to
|
|
how they are supposed to be set in Bugzilla's current configuration.
|
|
If it fails to set the permissions, a warning will be printed to STDERR.
|
|
|
|
=back
|