[3] | 1 | # |
---|
| 2 | # Copyright (c) 2004-2007 - Consultas, PKG.fr |
---|
| 3 | # |
---|
| 4 | # This file is part of A2P. |
---|
| 5 | # |
---|
| 6 | # A2P is free software; you can redistribute it and/or modify |
---|
| 7 | # it under the terms of the GNU General Public License as published by |
---|
| 8 | # the Free Software Foundation; either version 2 of the License, or |
---|
| 9 | # (at your option) any later version. |
---|
| 10 | # |
---|
| 11 | # A2P is distributed in the hope that it will be useful, |
---|
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 14 | # GNU General Public License for more details. |
---|
| 15 | # |
---|
| 16 | # You should have received a copy of the GNU General Public License |
---|
| 17 | # along with A2P; if not, write to the Free Software |
---|
| 18 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
---|
| 19 | # |
---|
| 20 | # $Id: BackEnd.pm 3 2007-10-18 16:20:19Z guillaume $ |
---|
| 21 | # |
---|
| 22 | |
---|
| 23 | package A2P::BackEnd ; |
---|
| 24 | |
---|
| 25 | # Derived class from Thread.pm |
---|
| 26 | use base qw(A2P::Thread); |
---|
| 27 | |
---|
| 28 | use strict ; |
---|
| 29 | use integer ; |
---|
| 30 | use Time::HiRes qw( usleep ) ; |
---|
| 31 | use A2P::Globals ; |
---|
| 32 | use A2P::Syslog ; |
---|
| 33 | use A2P::Com qw( IsCom comJOB comZIP comFILE ); |
---|
| 34 | |
---|
| 35 | BEGIN { |
---|
| 36 | our $VERSION = sprintf "%s", q$Rev: 955 $ =~ /(\d[0-9.]+)\s+/ ; |
---|
| 37 | } |
---|
| 38 | our $VERSION ; |
---|
| 39 | |
---|
| 40 | ################################################################################ |
---|
| 41 | ## BackEnd code ## |
---|
| 42 | ################################################################################ |
---|
| 43 | sub Do { |
---|
| 44 | my $self = shift ; |
---|
| 45 | my $ref = shift ; |
---|
| 46 | |
---|
| 47 | my $Ret = 0 ; |
---|
| 48 | |
---|
| 49 | my @Job = &IsCom( comJOB , $$ref ); |
---|
| 50 | |
---|
| 51 | if ( @Job == 2 ) { |
---|
| 52 | my ( $Job , $Cmd ) = @Job ; |
---|
| 53 | |
---|
| 54 | my ( $SigPipe , $SigChild ) = ( 0 , 0 ); |
---|
| 55 | $SIG{PIPE} = sub { $SigPipe ++ ; }; |
---|
| 56 | $SIG{CHILD} = sub { $SigChild ++ ; }; |
---|
| 57 | |
---|
| 58 | my $ThisCmdId = sprintf("%s-T%sCMD%03d", $Job, $$, $self->{CmdIndex}); |
---|
| 59 | $self->{CmdIndex} = 1 if ( ++ $self->{CmdIndex} > 999 ); |
---|
| 60 | &Debug("Set Id $ThisCmdId to this command"); |
---|
| 61 | |
---|
| 62 | # Keep internal stats |
---|
| 63 | &UPSTAT('CMD-EXEC'); |
---|
| 64 | |
---|
| 65 | my $try = 0 ; |
---|
| 66 | |
---|
| 67 | if ( @Job = &IsCom( comZIP , $Cmd ) ) { |
---|
| 68 | # If we are cleaning making a zip file, we should process differen- |
---|
| 69 | # tly as file list to zip can be too long for zip command line |
---|
| 70 | |
---|
| 71 | my $command = 'zip -@' . |
---|
| 72 | ( $COMPRESSFILES ? |
---|
| 73 | ( $COMPRESSFILES > 0 and |
---|
| 74 | $COMPRESSFILES <= 9 ? $COMPRESSFILES : 1 ) : 0 ) . |
---|
| 75 | $ZIPOPTIONS . ' ' . $Job[0] ; |
---|
| 76 | |
---|
| 77 | &Debug("Setting $ThisCmdId to '$command'"); |
---|
| 78 | |
---|
| 79 | my @files = split( /(?<=file>)(?=<file)/, $Job[1] ); |
---|
| 80 | |
---|
| 81 | if ( @files ) { |
---|
| 82 | &Debug("Sending '$Job[1]' to $ThisCmdId zip process"); |
---|
| 83 | if (defined(open(*CMD , '|' . $command))) { |
---|
| 84 | local $\ = "\n" ; |
---|
| 85 | foreach my $rawfile ( @files ) { |
---|
| 86 | my $file = "" ; |
---|
| 87 | unless (( $file ) = &IsCom( comFILE , $rawfile )) { |
---|
| 88 | $self->ThisError("Bad file format in file list '" . |
---|
| 89 | $Job[1] ."'"); |
---|
| 90 | $Ret = 260 ; # Ret will be evaluated to 5 later |
---|
| 91 | last ; |
---|
| 92 | } |
---|
| 93 | unless ( $file and print CMD $file ) { |
---|
| 94 | $self->ThisError("Can't send '$file' to " . |
---|
| 95 | $ThisCmdId . " zip command: $! $?"); |
---|
| 96 | $Ret = 257 ; # Ret will be evaluated to 2 later |
---|
| 97 | last ; |
---|
| 98 | } |
---|
| 99 | } |
---|
| 100 | close(CMD); |
---|
| 101 | |
---|
| 102 | } else { |
---|
| 103 | $self->ThisError("Can't open $ThisCmdId: $!"); |
---|
| 104 | $Ret = 258 ; # Ret will be evaluated to 3 later |
---|
| 105 | } |
---|
| 106 | |
---|
| 107 | } else { |
---|
| 108 | $self->ThisError("Bad to zip list format in '$Job[1]'"); |
---|
| 109 | $Ret = 259 ; # Ret will be evaluated to 4 later |
---|
| 110 | } |
---|
| 111 | |
---|
| 112 | } else { |
---|
| 113 | &Debug("Starting $ThisCmdId"); |
---|
| 114 | |
---|
| 115 | # Try to do command |
---|
| 116 | my $timeout = time + $BACKEND_RETRYTIMEOUT ; |
---|
| 117 | while ( $try ++ < $BACKEND_RETRY ) { |
---|
| 118 | $! = 0 ; |
---|
| 119 | # Don't retry if command returns as expected |
---|
| 120 | last unless ( $Ret = system( $Cmd ) ); |
---|
| 121 | &Debug("Try #$try '$Cmd' as it returned $Ret ($!)"); |
---|
| 122 | &UPSTAT('CMD-EXEC-ERR-'.$Ret); |
---|
| 123 | last if ( time > $timeout ); |
---|
| 124 | usleep $try * $USLEEP ; |
---|
| 125 | } |
---|
| 126 | } |
---|
| 127 | |
---|
| 128 | if ($Ret) { |
---|
| 129 | # update try to real count |
---|
| 130 | $try -- ; |
---|
| 131 | |
---|
| 132 | &Warn("$Job: $ThisCmdId core dumped") if ($Ret & 128); |
---|
| 133 | &Info("$Job: $ThisCmdId received signal " . ($Ret & 127)) |
---|
| 134 | if ($Ret & 127); |
---|
| 135 | $Ret = $Ret >> 8 ; |
---|
| 136 | $self->ThisError("$ThisCmdId returned with value $Ret after " . |
---|
| 137 | $try . ($try<2?" try":" tries").(($!)?": '$!'":"")); |
---|
| 138 | |
---|
| 139 | # Keep internal stats |
---|
| 140 | &UPSTAT('CMD-EXEC-FAILED'); |
---|
| 141 | $STATS{'CMD-EXEC-LAST-FAILED'} = $Job . ': ' . $Cmd ; |
---|
| 142 | |
---|
| 143 | } else { |
---|
| 144 | &Debug("$ThisCmdId received signal " . ($Ret & 127)) |
---|
| 145 | if ($Ret & 127); |
---|
| 146 | $Ret = DONE ; |
---|
| 147 | |
---|
| 148 | # Keep internal stats |
---|
| 149 | &UPSTAT('CMD-EXEC-DONE'); |
---|
| 150 | |
---|
| 151 | } |
---|
| 152 | |
---|
| 153 | &Debug("SIGPIPE received: $! $? $@") if $SigPipe ; |
---|
| 154 | wait ; |
---|
| 155 | &Debug("SIGCHLD received: $! $? $@") if $SigChild ; |
---|
| 156 | |
---|
| 157 | &Debug("$ThisCmdId status = " . |
---|
| 158 | (defined($means{$Ret}) ? $means{$Ret} : $Ret)); |
---|
| 159 | $self->Return( $Job , $Ret ); |
---|
| 160 | $self->AnswerDone( $Job ); |
---|
| 161 | |
---|
| 162 | } else { |
---|
| 163 | $self->ThisError("Got bad command request '$$ref'"); |
---|
| 164 | |
---|
| 165 | $Ret = 9 ; |
---|
| 166 | |
---|
| 167 | if (@Job) { |
---|
| 168 | # Return exec status even for bad format to not break job processing |
---|
| 169 | $self->Return( $Job[0] , $Ret ); |
---|
| 170 | $self->AnswerDone( $Job[0] ); |
---|
| 171 | } |
---|
| 172 | |
---|
| 173 | # Keep internal stats |
---|
| 174 | &UPSTAT('BA-CMD-FORMAT'); |
---|
| 175 | } |
---|
| 176 | |
---|
| 177 | return $Ret == DONE ? 1 : 0 ; |
---|
| 178 | } |
---|
| 179 | |
---|
| 180 | sub ThreadInit { |
---|
| 181 | $_[0]->{CmdIndex} = 1 ; |
---|
| 182 | } |
---|
| 183 | |
---|
| 184 | &Debug("Module " . __PACKAGE__ . " v$VERSION loaded"); |
---|
| 185 | |
---|
| 186 | 1; |
---|