From 3f8c1b91f5b163f22b65df1839535c68c1916a5c Mon Sep 17 00:00:00 2001 From: Nei Jobson Date: Fri, 1 Jul 2016 19:45:40 -0300 Subject: [PATCH] Carregados arquivos da versão 1.0.0 do OCR Server. --- INSTALL.txt | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ etc/init.d/ocr | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ lgpl-2.1.txt | 502 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ usr/local/bin/ocr | 591 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1276 insertions(+), 0 deletions(-) create mode 100644 INSTALL.txt create mode 100644 etc/init.d/ocr create mode 100644 lgpl-2.1.txt create mode 100644 usr/local/bin/ocr diff --git a/INSTALL.txt b/INSTALL.txt new file mode 100644 index 0000000..265ecb0 --- /dev/null +++ b/INSTALL.txt @@ -0,0 +1,103 @@ +# Configure o script, alterando as variáveis no arquivo 'usr/local/bin/ocr': + # @BASE_DIRS: Lista de diretórios base para a busca de arquivos --> cada diretório base irá ter sua própria instância do script + # @SUB_DIRS: Subdiretórios de entrada, saída, backup do arquivos originais, temporário e de arquivos com erro + # $MAX_FILES: Número máximo de arquivos a serem processados simultaneamente por diretório de entrada (default: 2) + # $MAX_PGS: Número máximo de páginas que podem ser processadas simultanemante por arquivo de entrada (default: no. de CPUs) + # Essas variáveis controlam o número máximo de instâncias de processos simultâneas = Num. de diretorios X MAX_FILES X MAX_PGS. + # Recomenda-se que o equipamento tenha em torno de 1,5 GB de RAM para cada core de CPU de forma a evitar swap. Se isso não for possível, pode ser reduzido o número de processos ou arquivos simultâneos. + +# Para operação multi instância, basta instalar quantos servidores forem necessários e eles podem ter acesso aos mesmos diretórios de entrada que podem ser compatilhamentos SAMBA/CIFS/Windows ou NFS. + + +# Configuração e instalação do OCR server: + +# Compilando os pré-requisitos: máquina de COMPILAÇÃO APENAS -- (RedHat) --> os requisitos de runtime estão abaixo e são menores + yum -y install autoconf make gcc-java gcc gcc-c++ subversion pkg-config automake libtool yasm cmake git libgcj + yum -y install libtiff-devel libpng-devel openjpeg-devel libjpeg-turbo-devel giflib-devel libwebp-devel zlib-devel libicu-devel pango-devel cairo-devel fontconfig-devel gettext-devel + +# Ubuntu + apt-get install build-essential cmake libtool yasm pkg-config subversion git libgcj14 + apt-get install libtiff-dev libpng-dev libopenjpeg-dev libjpeg8-dev libjpeg-turbo8-dev libjpeg-dev libgif-dev zlib1g-dev libicu-dev libpango1.0-dev libcairo2-dev libfontconfig1-dev libgettextpo-dev + + cd /usr/local/src + + for i in \ + https://github.com/tesseract-ocr/langdata.git \ + https://github.com/DanBloomberg/leptonica.git \ + https://github.com/libav/libav.git \ + https://github.com/tesseract-ocr/tessdata.git \ + https://github.com/tesseract-ocr/tesseract.git \ + git://git.freedesktop.org/git/poppler/poppler.git \ + git://git.freedesktop.org/git/poppler/test.git \ + https://github.com/Flameeyes/unpaper.git \ + https://github.com/ocaml/ocaml.git \ + https://gitlab.camlcity.org/gerd/lib-findlib.git \ + https://github.com/johnwhitington/camlpdf.git \ + https://github.com/johnwhitington/cpdf-source.git \ + ; do git clone $i; done + + wget http://www.itzgeek.com/msttcore-fonts-2.0-3.noarch.rpm + rpm -Uvh msttcore-fonts-2.0-3.noarch.rpm + rm -f msttcore-fonts-2.0-3.noarch.rpm + + wget https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk-2.02-src.zip + unzip pdftk-2.02-src.zip + rm -f pdftk-2.02-src.zip + +# Leptonica + cd leptonica && ./autobuild && ./configure && make -j 8 all install && cd .. + +# Tesseract + cd tesseract && ./autogen.sh && ./configure && make -j 8 all install && cd .. + cp -avR tessdata/* /usr/local/share/tessdata/ + +# libav + cd libav && ./configure --enable-sram && make -j8 all install && cd .. + +# cpdf + cd ocaml && ./configure && make world.opt && make install && cd .. + mkdir -p /usr/local/man/man5 + cd lib-findlib && ./configure && make all && make install && cd .. + cd camlpdf && sed -i.bak s/\(uint32\)/\(uint32_t\)/g flatestubs.c && make && make install && cd .. + cd cpdf-source && make all && make install && cp cpdf /usr/local/bin && cd .. + +# pdftk + cd pdftk-2.02-dist/pdftk && make -f Makefile.Redhat all install && cd ../.. + +# poppler + cd poppler && ./autogen.sh && LIBOPENJPEG_LIBS=-l/usr/local/lib/libopenjp2.so LIBOPENJPEG_CFLAGS=-I/usr/local/include ./configure --enable-libopenjpeg=openjpeg2 && make all install && cd .. + +# Criação do usuário + adduser ocr + +# Copie os arquivos ocr ocr-init* para o /home/ocr e, conforme o sistema operacional + cp /home/ocr/ocr /usr/local/bin + cp /home/ocr/ocr-init-rh /etc/init.d/ocr (OU) + cp /home/ocr/ocr-init-Ubuntu /etc/init/ocr + +# Auto start (RedHat) + chkconfig --add ocr + chkconfig --level 2345 ocr on + +# Auto start (Ubuntu) + update-rd.d ocr defaults + +# Create pkg + cd /home/ocr + tar cvozf pkg-ocr.tgz /usr/local/bin /usr/local/lib* /usr/local/man/ /usr/local/sbin/ /usr/local/share/ /usr/local/etc /usr/local/include/ /home/ocr/ocr* /etc/init.d/ocr /etc/rc*.d/*ocr + su + +# Copie o pacote para os outros servidores e extraia com: + cd / + tar xovzf pkg-ocr.tgz + +# Instalando pré-requisitos RUNTIME + yum -y install perl-File-Find-Rule-Perl perl-File-Touch libtiff libpng openjpeg-libs libjpeg-turbo giflib zlib libicu pango cairo fontconfig ImageMagick gettext libwebp + yum -y install libtiff libpng openjpeg libjpeg-turbo giflib libwebp zlib libicu pango cairo fontconfig gettext + +# Ubuntu + apt-get install libfile-find-rule-perl libfile-find-rule-perl-perl libtiff5 libpng12-0 libopenjpeg2 libjpeg-turbo8 libgif4 zlib1g libicu52 libpango1.0-0 libcairo2 fontconfig imagemagick gettext libwebp5 # libgcj14 + apt-get install libtiff5 libpng12-0 libopenjpeg2 libjpeg8 libjpeg-turbo8 libjpeg8 zlib1g libpango1.0-0 libcairo2 libfontconfig1 libgettextpo0 + +# Inicie o serviço com + service ocr start \ No newline at end of file diff --git a/etc/init.d/ocr b/etc/init.d/ocr new file mode 100644 index 0000000..f3c0b23 --- /dev/null +++ b/etc/init.d/ocr @@ -0,0 +1,80 @@ +#!/bin/sh +# +# chkconfig: - 24 73 +# description: Starts and stops the Samba winbind daemon +# # +# pidfile: /var/run/winbindd.pid +# config: /etc/samba/smb.conf + + +# Source function library. +. /etc/rc.d/init.d/functions + +# Avoid using root's TMPDIR +unset TMPDIR + +RETVAL=0 + + +start() { + KIND="OCR" + echo -n $"Starting $KIND services: " + daemon /usr/local/bin/ocr + RETVAL=$? + echo + [ $RETVAL -eq 0 ] && touch /var/lock/subsys/ocr || RETVAL=1 + return $RETVAL +} + +stop() { + echo + KIND="OCR" + echo -n $"Shutting down $KIND services: " + killproc ocr + RETVAL=$? + [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/ocr + echo "" + return $RETVAL +} + +restart() { + stop + start +} + +rhstatus() { + status ocr + return $? +} + +# Allow status as non-root. +if [ "$1" = status ]; then + rhstatus + exit $? +fi + +# Check that we are root ... so non-root users stop here +[ `id -u` -eq "0" ] || exit 4 + +case "$1" in + start) + start + ;; + stop) + stop + ;; + restart) + restart + ;; + status) + rhstatus + ;; + condrestart) + [ -f /var/lock/subsys/ocr ] && restart || : + ;; + *) + echo $"Usage: $0 {start|stop|restart|status|condrestart}" + exit 2 +esac + +exit $? diff --git a/lgpl-2.1.txt b/lgpl-2.1.txt new file mode 100644 index 0000000..de19e90 --- /dev/null +++ b/lgpl-2.1.txt @@ -0,0 +1,502 @@ +GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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You can do so by permitting +redistribution under these terms (or, alternatively, under the terms of the +ordinary General Public License). + + To apply these terms, attach the following notices to the library. It is +safest to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least the +"copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + +Also add information on how to contact you by electronic and paper mail. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the library, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! \ No newline at end of file diff --git a/usr/local/bin/ocr b/usr/local/bin/ocr new file mode 100644 index 0000000..db3186a --- /dev/null +++ b/usr/local/bin/ocr @@ -0,0 +1,591 @@ +#! /usr/bin/perl -w +# +# OCR Server 1.0 - (c) Agência Nacional de Telecomunicações +# +# This script monitors a set of input directories for PDF files +# once a new file is detected, it is processes through tesseract OCR +# in order to generate a new file with a hidden searchable text layer +# +# It may be distributed under the conditions of the LGPL v2.1 license. +# +# Author: Guilherme Chehab +# +# Version History: +# 0.1 Initial single server version +# 0.2 Check if page already has the html hidden layer, if so, ignore it +# 0.3 Solved issues about various image enconding types +# 0.4 Added a postnormalization step to ensure all output pdf pages have +# the same size and orientations as the original files +# 0.5 Used input file renaming as a way to sync multiple parallel instances, +# that way, it is minimized the risk of same file being OCRed multiple times. +# 0.6 Added a default handler for unknown image encoding using jpeg encoding +# 0.7 Solved an issue with files with more than 1000 pages +# 1.0 First release version +# +# Check software requirements on the comments bellow +# +# To configure input dirs change @BASE_DIRS and @SUB_DIRS variables + +use warnings; +use strict; + +use File::Find::Rule; +use File::Basename; +use File::Copy; +use File::Path qw (remove_tree make_path); +use File::Touch; +use Fcntl qw( :flock ); +use Sys::Syslog; +use POSIX; +#use POSIX ":sys_wait_h"; +use Sys::Hostname; +use IPC::Open3; +use IO::Select; + +my $DEBUG = 0; +my $MAX_PGS = ($DEBUG==2 ? 1 : `cat /proc/cpuinfo | grep CPU | wc -l`); +my $MAX_FILES = ( !$DEBUG ? 2 : 1) ; + +my $USER = 'ocr'; + +# Command dependencies + +# depends on tesseract-ocr an tesseract-ocr-por 3.05-dev or higher +my $TESSERACT = '/usr/local/bin/tesseract -l por+eng'; + +# Depends on pdftk 2.02 or higher +my $PDFTK = '/usr/local/bin/pdftk'; + +# Depends on poppler-utils 0.42.0 or higher +#my $PDINFO = '/usr/local/bin/pdfinfo'; +my $PDFFONTS = '/usr/local/bin/pdffonts'; +my $PDFIMAGES = '/usr/local/bin/pdfimages'; +my $PDFTOPPM = '/usr/local/bin/pdftoppm'; + +# Depends on cpdf 3.3 or higher +my $CPDF = '/usr/local/bin/cpdf'; + +# Depends on ImageMagick and http://www.fmwconcepts.com/imagemagick/downloadcounter.php?scriptname=textcleaner&dirname=textcleaner +#my $FILTER = '/usr/local/bin/textcleaner -g -e stretch -f 25 -o 10 -u -s 1 -T -p 10 '; + +my $CONVERT = '/usr/bin/convert'; + +my @BASE_DIRS = ( '/mnt/protocolo_sede/DIGITALIZAÇÃO/ARQUIVOS PROTOCOLO/OCR/', + '/mnt/protocolo_sede/DIGITALIZAÇÃO/ARQUIVOS_PROCESSOS/OCR/' ); + +my %SUB_DIRS = ( 'IN'=>'Entrada', 'OUT'=>'Saida', 'PROC'=>'Originais_Processados', 'TEMP'=>'/tmp/ocr_tmp', 'ERROR' => 'Erro' ); + +@BASE_DIRS = ( '/tmp/ocr_dev/') if ($DEBUG==2); +%SUB_DIRS = ( 'IN'=>'Entrada', 'OUT'=>'Saida', 'PROC'=>'Originais_Processados', 'TEMP'=>'/tmp/ocr_dev/tmp', 'ERROR' => 'Erro' ) if ($DEBUG); + + +$ENV{'PATH'} = '/usr/local/bin:/bin:/usr/bin'; +my ($host) = split/\./,hostname; + +use vars qw/*name *dir *prune/; +*name = *File::Find::name; +*dir = *File::Find::dir; +*prune = *File::Find::prune; + +sub main; +sub get_pages; +sub get_rotation; +sub get_res; +sub is_ocred; +sub is_locked_ex; + + +my $expr = 'use POSIX qw(setsid)'; + +my ($dumb1, $dumb2, $uid) = getpwnam ($USER); +setuid ($uid) or warn "Cant set uid $uid"; + +$SIG{__DIE__} = 'DEFAULT'; +$SIG{__WARN__} = \&die_when_called; +#$SIG{CHLD} = 'IGNORE'; +eval $expr; +if ($@) { + die "$0: cannot get POSIX::setsid since eval '$expr' failed: $@\n"; +} +chdir('/') or die "$0: cannot chdir '/': $!\n"; +open(STDIN, '/dev/null') or die "$0: cannot open '/dev/null': $!\n"; + +foreach my $DIR (@BASE_DIRS) { + + defined(my $pid = fork) or die "$0: cannot fork: $!\n"; + if (!$pid) { + #$SIG{CHLD} = 'IGNORE'; + POSIX::setsid() or die "$0: cannot start a new session: $!\n"; + main ($DIR, $DIR.$SUB_DIRS{IN}, $DIR.$SUB_DIRS{OUT}, $DIR.$SUB_DIRS{PROC}, $SUB_DIRS{TEMP}, $DIR.$SUB_DIRS{ERROR}); + exit 0; + last; + } +} + +exit 0; + +sub main { + my ($DIR, $IN, $OUT, $PROC, $TEMP, $ERRO) = @_; + + my %files_in; + my %pids; + my $count=0; + + $0 = 'ocr_dev' if ($DEBUG); + + # Clean previous executions -- must be rewritten to permit multiple daemons running on same dir + + # Remove old temp files + remove_tree (${TEMP},{ keep_root=>1 , error=> \my $dumb }); + + # remove .tmp file + unlink ( find ( file => name => qr/\.${host}\.tmp$/i , in => ${IN} ) ); + + # Rename files that were in 'processig' back + foreach my $file ( find ( file => name => qr/\.${host}\.processing$/i , in => ${IN} ) ) { + my $old_name = $file; + $old_name =~ s/\.${host}\.processing$//g; + move ($file, $old_name); + } + + # Open log file + openlog ("ocr","ndelay,pid","local0") if !$DEBUG; + syslog ("info","OCR started, monitoring: ".$DIR) if (!$DEBUG); + + $SIG {TERM} = $SIG{HUP} = sub { + syslog ("info","OCR stopped monitor: ".$DIR) if (!$DEBUG); + exit 0; + }; + + + # Main loop + while ( 1 ) { + select (undef, undef, undef, rand 3); # Random sleep so multiple instances dont get synced + $files_in {$_} = (!defined $files_in {$_} ? 1 : $files_in {$_}) for ( find ( file => name => qr/\.pdf$/i , in => ${IN} )); + print "\nFound ", scalar keys %files_in, " in $IN\n" if $DEBUG && $count != scalar keys %files_in; + $count = scalar keys %files_in; + foreach my $file (keys %files_in) { + + next if ( glob ("$file.*.tmp")); + + select (undef, undef, undef, 1 + rand 2); # sleep between 1 and 3 seconds + next if (!defined $files_in{$file}); # continue only if it is still valid + next if ($files_in{$file}==2); # if in file already is in processing + + if ($files_in {$file} == 1) { + + # Skip locked files -- should try again on next iteration + if ( is_locked_ex ($file)) { + delete $files_in {$file}; + next; + } + + # Cleanup deleted pids before forking again + while (scalar keys %pids >= $MAX_FILES) { + my @ended = child_wait (\%pids); + foreach my $ended_pid (@ended) { + delete $files_in{$pids{$ended_pid}}; + delete $pids{$ended_pid}; + } + }; + + if (!glob( "$file.*.tmp")) { # Do nothing with files in processing by another process + if (my $pid = fork) { + while (! glob ("$file.$host.tmp")) {sleep 1;}; # Wait until temp file is created + $files_in{$file} = 2; + $pids{$pid}=$file; + } else { + touch ("$file.$host.tmp"); + while (! glob ("$file.$host.tmp")) {sleep 1;}; # Wait until temp file is created + select (undef, undef, undef, 1 + rand 2); # sleep between 1 and 3 seconds + ocr ( $DIR, $IN, $OUT, $PROC, $TEMP, $ERRO, $file); + exit (0); # It is never executed + } + } else { + next; + } + } + } + + # Cleanup periodicaly + foreach my $pid (keys (%pids)) { + if (waitpid ($pid,WNOHANG)==-1) { + delete $files_in{$pids{$pid}}; + delete $pids{$pid}; + } + } + + #if ($DEBUG==2) { + # child_wait (\%pids); + # exit; + #} + } +} + +sub ocr { + my ($DIR, $IN, $OUT, $PROC, $TMP, $ERROR, $in_file) = @_; + my ($in_name, $in_path, $in_suffix) = fileparse ($in_file); + my ($exit, $cmd, @out,@err); + + my $tmpdir = $TMP .'/'.$in_name.'.' . $$; + touch ("$in_file.$host.tmp"); + + print "Will ocr $in_file\n" if ($DEBUG); + + $0 = "ocr $in_name" if(!$DEBUG); + + $SIG {TERM} = $SIG{HUP} = sub { + while (wait () != -1) { sleep 1;}; + remove_tree ($tmpdir,{ error=> \my $dumb }); + unlink ("$in_file.$host.tmp"); + move ( "$in_file.$host.processing", $in_file); + exit 0; + }; + + my $out_path = $in_path; + $out_path =~ s{${IN}}{$OUT}; + my $out_file = $out_path.$in_name.($in_suffix ne ""? ".".$in_suffix: ""); + + my $proc_path = $in_path; + $proc_path =~ s{${IN}}{$PROC}; + my $proc_file = $proc_path.$in_name.($in_suffix ne ""? ".".$in_suffix: ""); + + my $error_path = $in_path; + $error_path =~ s{${IN}}{$ERROR}; + my $error_file = $error_path.$in_name.($in_suffix ne ""? ".".$in_suffix: ""); + + print "\twritting to $out_file\n" if $DEBUG; + + my $stime = time; + my %pids; + + if (!move ($in_file, "$in_file.$host.processing")) { + unlink ("$in_file.$host.tmp"); + exit 0; + } + + sleep 1 if (!$DEBUG); + select (undef, undef, undef, 2) if ($DEBUG); + + # Create temp dir + make_path $tmpdir; + + my $tmp_file = $tmpdir.'/'.$in_name.($in_suffix ne ""? ".".$in_suffix: ""); + if (!copy ("$in_file.$host.processing", $tmp_file)) { + remove_tree ($tmpdir,{ error=> \my $dumb }); + unlink ("$in_file.$host.tmp"); + move ( "$in_file.$host.processing", $in_file); + }; + + # Extract pages + ($exit, $cmd, @out,@err) = exec_cmd ("${PDFTK} \"${tmp_file}\" burst output \"${tmpdir}\"/pg_\%06d.pdf"); + if ($DEBUG) { + print "\t\t${tmp_file} -> ${cmd}: $exit\n"; + print "\t\t\t$_" for @out ; + print "\t\t\t$_" for @err ; + }; + + + my ($pages, @pg_w, @pg_h, @pg_r); + $pages = get_pages ($tmp_file, \@pg_w, \@pg_h, \@pg_r); + + my (@img_w, @img_h, @img_t); + $pages = get_imgs ( $tmp_file, \@img_w, \@img_h, \@img_t); + + + for ( my $i=0; $i< $pages; $i++ ) { + my $pg = sprintf ("pg_%06d", $i+1); + + # Enforce fork limit + while (scalar keys %pids >= $MAX_PGS ) { + my @ended = child_wait (\%pids); + foreach my $ended_pid (@ended) { + delete $pids{$ended_pid}; + } + } + + if (my $pid=fork) { + $pids{$pid}=$pg; + } else { + $0 = "ocr $in_name (".($i+1)."/$pages)" if(!$DEBUG); + print "\t\t${in_file}: ".(${i}+1)." / $pages: $pg_w[$i] x $pg_h[$i] - $pg_r[$i] & $img_w[$i] x $img_h[$i], $img_t[$i]\n" if $DEBUG; + + if (! defined $img_t[$i] ) { + move ("${tmpdir}/${pg}.pdf","${tmpdir}/${pg}-cpdf.pdf"); + exit 0; + } + + if (is_ocred ("${tmpdir}/${pg}.pdf")) { + move ("${tmpdir}/${pg}.pdf","${tmpdir}/${pg}-cpdf.pdf"); + exit 0; + } + + undef $cmd; + + if ($img_t[$i] eq "gray") { + $cmd = "${PDFIMAGES} -tiff \"${tmpdir}\"/${pg}.pdf \"${tmpdir}\"/${pg}"; + } + + if ($img_t[$i] eq "rgb") { + $cmd = "${PDFTOPPM} -jpeg -scale-to-x $img_w[$i] -scale-to-y $img_h[$i] \"${tmpdir}\"/${pg}.pdf \"${tmpdir}\"/${pg}"; + $pg_r[$i] = 0; # Do not rotate if it was extracted with PDFTOPPM + } + + if (!defined $cmd) { + $cmd = "${PDFTOPPM} -jpeg -scale-to-x $img_w[$i] -scale-to-y $img_h[$i] \"${tmpdir}\"/${pg}.pdf \"${tmpdir}\"/${pg}"; + $pg_r[$i] = 0; # Do not rotate if it was extracted with PDFTOPPM + } + + ($exit,$cmd,@out,@err) = exec_cmd($cmd); + if ($DEBUG) { + print "\t\t\t${pg}.pdf -> ${cmd}: $exit\n"; + print "\t\t\t\t$_" for @out ; + print "\t\t\t\t$_" for @err ; + }; + + # Process each resulting image for page pdf + my @images = ( find ( file => name => qr/${pg}.*\.(jpg|tif)/i , in => ${tmpdir} )) ; + + foreach my $image (@images) { + print "\t\t\t${image}: ".(${i}+1)." / $pages\n" if $DEBUG; + + # Check if page was rotated + if ($pg_r[$i]) { + print "\t\t\t${image} unrotate: $pg_r[$i] graus ".(${i}+1)." / $pages\n" if $DEBUG; + ($exit,$cmd,@out,@err) = exec_cmd("${CONVERT} \"$image\" -rotate $pg_r[$i] \"$image\""); + if ($DEBUG) { + print "\t\t\t${image} -> $cmd: $exit\n"; + print "\t\t\t\t$_" for @out ; + print "\t\t\t\t$_" for @err ; + }; + } + + # Filter ppm images, if needed + + # OCR ppm images to pdf pages + ($exit,$cmd, @out,@err) = exec_cmd("${TESSERACT} \"${image}\" \"${image}\" pdf"); + if ($DEBUG) { + print "\t\t\t${image} -> $cmd: $exit\n"; + print "\t\t\t\t$_" for @out ; + print "\t\t\t\t$_" for @err ; + }; + + # Scale to fit pdf + ($exit,$cmd, @out,@err) = exec_cmd("${CPDF} -scale-to-fit \"$pg_w[$i] $pg_h[$i]\" \"${image}\".pdf -o \"${image}\"-cpdf.pdf"); + if ($DEBUG) { + print "\t\t\t${image} -> $cmd: $exit\n"; + print "\t\t\t\t$_" for @out ; + print "\t\t\t\t$_" for @err ; + }; + + + unlink ("${tmpdir}/${pg}.pdf") if (!$DEBUG); + unlink ("$image.pdf") if (!$DEBUG); + move ("${tmpdir}/${pg}.pdf","${tmpdir}/${pg}.pdf.old") if ($DEBUG); + unlink ("$image") if (!$DEBUG); + } + exit 0; + } + } + + + # Wait all pages to complete + while (wait () != -1) { sleep 1;}; + + # Check if all pages where converted. + my @new_pages = ( find ( file => name => qr/pg_.*-cpdf.pdf$/i , in => ${tmpdir} )) ; + + if (scalar @new_pages != $pages) { + print "\t\t${out_file} -> Number of output pages differ (Orig.: $pages x New: ".scalar @new_pages."): $exit\n" if ($DEBUG); + syslog ("info","OCR: $in_file, number of output pages differ") if (!$DEBUG); + unlink "$in_file.$host.tmp"; + move ("$in_file.$host.processing", $error_file); + exit (0); + } + + # Merge resulting pdf pages to a single pdf + make_path ($out_path) if ( ! -d $out_path); + unlink $out_file if ( -f $out_file ); + ($exit, $cmd, @out,@err) = exec_cmd("${PDFTK} \"${tmpdir}\"/pg_*-cpdf.pdf cat output \"${out_file}.tmp\" compress"); + if ($DEBUG) { + print "\t\t${out_file} -> $cmd: $exit\n"; + print "\t\t\t$_" for @out ; + print "\t\t\t$_" for @err ; + }; + + make_path ($proc_path) if ( ! -d $proc_path); + unlink $proc_file if ( -f $proc_file ); + move ("$in_file.$host.processing", $proc_file); + move ("${out_file}.tmp", ${out_file}); + + + # Remove temp dir + remove_tree ($tmpdir,{ error=> \my $dumb }) if (!$DEBUG); + unlink $tmp_file if (!$DEBUG); + unlink "$in_file.$host.tmp"; + unlink "$in_file.png"; + + my $etime = time; + + print "OCR processed: $in_file OCRed (${pages} pages in ".($etime-$stime)." segs - ". sprintf ("%.2f",($etime-$stime)/$pages)." segs/page)\n" if $DEBUG; + syslog ("info","OCR processed: $in_file(${pages} pages in ".($etime-$stime)." segs - ". sprintf ("%.2f",($etime-$stime)/$pages)." segs/page)") if !$DEBUG; + + exit (0); +} + +sub is_ocred { + my ($in_file) = @_; + my @fonts = `${PDFFONTS} -l 10 \"${in_file}\" 2>/dev/null`; + + return ( scalar @fonts > 2 ? 1 :0 ); +} + +sub get_pages { + my ($in_file, $w, $h, $r) = @_; + + my $pages=0; + my $i=0; + + my $dumb; + + my ($exit, $cmd, @lines, @err) = exec_cmd("${PDFTK} \"${in_file}\" dump_data"); + + foreach (@lines) { + chomp; + ($dumb, $pages) = split / {1,}/ if ( $_ =~ /NumberOfPages:/ ); + ($dumb, $i ) = split / {1,}/ if ( $_ =~ /PageMediaNumber:/ ); + ($dumb, @$r[$i-1]) = split / {1,}/ if ( $_ =~ /PageMediaRotation:/ ); + ($dumb, @$w[$i-1], @$h[$i-1]) = split / {1,}/ if ( $_ =~ /PageMediaDimensions:/ ); + } + + return $pages; +} + +sub get_imgs { + my ($in_file, $w, $h, $t) = @_; + my ($dumb, $i, $width, $height, $type); + + my ($exit, $cmd, @lines, @err) = exec_cmd("${PDFIMAGES} -list \"${in_file}\""); + + foreach my $line (@lines) { + chomp $line; + $line =~ s/^ {1,}//; + if ( $line =~ /image|mask/ ) { + ($i , $dumb, $dumb, $width, $height, $type) = split / {1,}/,$line; + @$w[$i-1] = $width; + @$h[$i-1] = $height; + @$t[$i-1] = ( $type eq "-" ? "rgb" : $type ); + @$t[$i-1] = ( $type eq "icc" ? "rgb" : $type ); + @$t[$i-1] = ( $type eq "index" ? "rgb" : $type ); + } + } + return $i; +} + +sub get_rotation { + my ($in_file) = @_; + + my $rotation=0; + my @lines = `${PDFTK} \"${in_file}\" dump_data 2>/dev/null`; + + foreach (@lines) { + chomp; + (my $dumb, $rotation) = split / / if ( $_ =~ /PageMediaRotation:/ ); + } + return $rotation; +} + +sub get_res { + my ($in_file) = @_; + + my $res_x=0; + my $res_y=0; + my @lines = `${PDFTK} \"${in_file}\" dump_data 2>/dev/null`; + + foreach (@lines) { + chomp; + (my $dumb, $res_x, $res_y) = split / / if ( $_ =~ /PageMediaDimensions:/ ); + $res_x=sprintf ("%.f", $res_x); + $res_y=sprintf ("%.f", $res_y); + } + return ($res_x,$res_y); +} + +sub is_locked_ex { + my ($path) = @_; + + warn "Not a plain file: '$path'" if ( $DEBUG & (! -f $path )) ; + return 1 unless open my $fh, '<', $path; + + my $ret = not flock $fh, LOCK_SH | LOCK_NB; + close $fh + or warn "Cannot close '$path': $!"; + + return $ret; +} + +sub child_wait { + my ($pids,$time) = @_; + my $count = scalar keys (%$pids); + my @ended; + + my $found=0; + while (!$found) { + foreach my $pid (keys (%$pids)) { + if (waitpid ($pid,WNOHANG)==-1) { + $found++; + push @ended, $pid; + next; + } + } + sleep 1 if (!$found); + } + + return @ended; +} + +sub exec_cmd { + my ($cmd) = @_; + my $rc; + my @out=(); + my @err=(); + + my $pid = open3(*CMD_IN, *CMD_OUT, *CMD_ERR, $cmd); + + $SIG{CHLD} = sub { + $rc = ($? >>8); + }; + + print CMD_IN ""; + close(CMD_IN); + + my $selector = IO::Select->new(); + $selector->add(*CMD_ERR, *CMD_OUT); + + while (my @ready = $selector->can_read) { + foreach my $fh (@ready) { + if (fileno($fh) == fileno(CMD_ERR)) { + while () { + push @err,$_; + } + } else { + while () { + push @out,$_; + } + } + if (eof ($fh)) { + $rc = ($? >>8) if (waitpid($pid, 0)>0); + $selector->remove($fh); + } + } + } + + $rc = ($? >>8) if (waitpid($pid, 0)>0); + + close(CMD_OUT); + close(CMD_ERR); + + $SIG{CHLD} = 'IGNORE'; + + return $rc,$cmd,@out,@err; +} -- libgit2 0.21.2