Attachment 9197 Details for Bug 7963 – Proposed patch

[patch] Proposed patch

0001-Bug-7963-Parallel-HTTP-requests-when-checking-URLs.patch (text/plain), 5.94 KB, created by Frédéric Demians on 2012-04-14 16:13:59 UTC

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Creator: Frédéric Demians

Created: 2012-04-14 16:13:59 UTC

Size: 5.94 KB

patch

obsolete

>From 82df81dfd0fe766927c645a45ac6e7ac401d1e95 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Demians?= <f.demians@tamil.fr>
>Date: Sat, 14 Apr 2012 15:04:41 +0200
>Subject: [PATCH] Bug 7963 Parallel HTTP requests when checking URLs
>
>Current script check-url.pl checks URL found in 856$u by sending HTTP
>requests, one by one. I propose a new script which send multiple
>requests simultaneously.
>
>This script is based on AnyEvent and AnyEvent::HTTP CPAN modules.
>
>See doc: perldoc checkurl
>---
> misc/cronjobs/checkurl |  179 ++++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 179 insertions(+), 0 deletions(-)
> create mode 100755 misc/cronjobs/checkurl
>
>diff --git a/misc/cronjobs/checkurl b/misc/cronjobs/checkurl
>new file mode 100755
>index 0000000..20f3da4
>--- /dev/null
>+++ b/misc/cronjobs/checkurl
>@@ -0,0 +1,179 @@
>+#!/usr/bin/perl
>+
>+# Copyright 2012 Tamil s.a.r.l.
>+#
>+# This file is part of Koha.
>+#
>+# Koha is free software; you can redistribute it and/or modify it under the
>+# terms of the GNU General Public License as published by the Free Software
>+# Foundation; either version 2 of the License, or (at your option) any later
>+# version.
>+#
>+# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
>+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
>+# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
>+#
>+# You should have received a copy of the GNU General Public License along
>+# with Koha; if not, write to the Free Software Foundation, Inc.,
>+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
>+
>+use 5.010;
>+use utf8;
>+use strict;
>+use warnings;
>+use Pod::Usage;
>+use Getopt::Long;
>+use C4::Context;
>+use C4::Biblio;
>+use AnyEvent;
>+use AnyEvent::HTTP;
>+
>+my ($verbose, $help, $html) = (0, 0, 0);
>+my ($host, $host_pro)       = ('', '');
>+my ($timeout, $maxconn)     = (10, 200);
>+my $uriedit                 = "/cgi-bin/koha/cataloguing/addbiblio.pl?biblionumber=";
>+GetOptions(
>+    'verbose'       => \$verbose,
>+    'html'          => \$html,
>+    'help'          => \$help,
>+    'host=s'        => \$host,
>+    'host-pro=s'    => \$host_pro,
>+    'timeout=i'     => \$timeout,
>+    'maxconn=i'     => \$maxconn,
>+);
>+
>+
>+sub usage {
>+    pod2usage( -verbose => 2 );
>+    exit;
>+}
>+
>+
>+# Check all URLs from all current Koha biblio records
>+
>+sub check_all_url {
>+    my $sth = C4::Context->dbh->prepare(
>+        "SELECT biblionumber FROM biblioitems WHERE url <> '' LIMIT 20" );
>+    $sth->execute;
>+
>+    my $countconn = 0;
>+    my $cv = AnyEvent->condvar;
>+    say "<html>\n<body>\n<table>" if $html;
>+    my $idle = AnyEvent->idle(
>+        cb => sub {
>+            return if $countconn > $maxconn;
>+            while ( my ($biblionumber) = $sth->fetchrow ) {
>+                my $record = GetMarcBiblio( $biblionumber );
>+                next unless $record->field('856');
>+                foreach my $field ( $record->field('856') ) {
>+                    my $url = $field->subfield('u');
>+                    next unless $url;
>+                    $url = "$host/$url" unless $url =~ /^http/;
>+                    $countconn++;
>+                    http_request(
>+                        HEAD => $url,
>+                        headers => { 'user-agent' => 'Mozilla/5.0 (compatible; U; Koha checkurl)' },
>+                        timeout => $timeout,
>+                        sub {
>+                            my (undef, $hdr) = @_;
>+                            $countconn--;
>+                            if ( $hdr->{Status} !~ /^2/ || $verbose ) {
>+                                print $html
>+                                ? "<tr>\n<td><a href=\"" .
>+                                  $host_pro . $uriedit . $biblionumber.
>+                                  "\">$biblionumber</a>" .
>+                                  "</td>\n<td>" . $url . "</td>\n<td>" .
>+                                  "$hdr->{Status} $hdr->{Reason}</td>\n</tr>\n\n"
>+                                : "$biblionumber\t" . $url . "\t" .
>+                                  "$hdr->{Status} $hdr->{Reason} \n";
>+                            }
>+                        },
>+                    );
>+                }
>+                return;
>+            }
>+            $cv->send;
>+        }
>+    );
>+    $cv->recv;
>+    $idle = undef;
>+
>+    # Give $timeout to pending requests to send their result
>+    $cv = AnyEvent->condvar;
>+    my $timer = AnyEvent->timer( after => $timeout + 1, cb => sub { $cv->send } );
>+    $cv->recv;
>+    say "</table>\n</body>\n</html>" if $html;
>+}
>+
>+
>+usage() if $help;
>+
>+if ( $html && !$host_pro ) {
>+    if ( $host ) {
>+        $host_pro = $host;
>+    }
>+    else {
>+        say "Error: host-pro parameter or host must be provided in html mode";
>+        exit;
>+    }
>+}
>+
>+check_all_url();
>+
>+
>+=head1 NAME
>+
>+checkurl - Check URLs from 856$u field.
>+
>+=head1 USAGE
>+
>+=over
>+
>+=item checkurl [--verbose|--help] [--host=http://default.tld]
>+
>+Scan all URLs found in 856$u of bib records and display if resources are
>+available or not. HTTP requests are sent in parallel for efficiency.
>+
>+=back
>+
>+=head1 PARAMETERS
>+
>+=over
>+
>+=item B<--host=http://default.tld>
>+
>+Server host used when URL doesn't have one, ie doesn't begin with 'http:'.
>+For example, if --host=http://www.mylib.com, then when 856$u contains
>+'img/image.jpg', the url checked is: http://www.mylib.com/image.jpg'.
>+
>+=item B<--verbose|-v>
>+
>+Outputs both successful and failed URLs.
>+
>+=item B<--html>
>+
>+Formats output in HTML. The result can be redirected to a file
>+accessible by http. This way, it's possible to link directly to biblio
>+record in edit mode. With this parameter B<--host-pro> is required.
>+
>+=item B<--host-pro=http://koha-pro.tld>
>+
>+Server host used to link to biblio record editing page.
>+
>+=item B<--timeout=10>
>+
>+Timeout for fetching URLs. By default 10 seconds.
>+
>+=item B<--maxconn=1000>
>+
>+Number of simulaneous HTTP requests. By default 200 connexions.
>+
>+=item B<--help|-h>
>+
>+Print this help page.
>+
>+=back
>+
>+=cut
>+
>+
>-- 
>1.7.8
>

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