mws/trunk/MWS.pm

#!/usr/bin/perl -w

package MWS;

use strict;
use warnings;
use Carp;

use Mail::Box::Manager;
use Config::IniFiles;
use POSIX qw(strftime);
use Text::Autoformat;
use Text::Iconv;
use Text::Unaccent;
use Date::Parse;
use POSIX qw(strftime);

#use MWS_plucene;
use MWS_swish;

require Exporter;

our @ISA = qw(Exporter);

our %EXPORT_TAGS = ();
our @EXPORT_OK;
our @EXPORT;

our $VERSION = '1.00';

my $folder;     # placeholder for folders

my $debug = 2;

sub new {
        my $class = shift;
        my $self = {};
        bless($self, $class);

        my $config_file = shift || die "need index file";

        $self->{config} = new Config::IniFiles( -file => $config_file );

        my $index_file = $self->{config}->val('global', 'index') || croak "can't find [index] section in config file with path of index";

        $self->{mgr} = Mail::Box::Manager->new(access => 'r');
        $self->{index_file} = $index_file;

        # placeholder for opened folders
        $self->{folder} = {};

        $self->{wrap_margin} = $self->{config}->val('global', 'wrap_margin');
        $self->{max_results} = $self->{config}->val('global', 'max_results') || 100;
        $self->reset_counters;

        return $self;
}

sub normalize_string {
        my $self = shift;

        my $v = shift || return;

        $v = unac_string('ISO-8859-2', $v);
        $v = join('',sort split(/\s+/,$v));
        $v =~ s/\W+//g;

        return $v;
}

# reset tables for search results
sub reset_counters {
        my $self = shift;

        $self->{counter} = {};

#       foreach my $c (qw(thread from to cc bcc lists links att)) {
#               $self->{counter}->{$c} = {};
#       }

}

sub add_counter($$) {
        my $self = shift;

        my ($c,$v) = @_;
        my $k = $self->normalize_string($v);

        $self->{counter}->{$c}->{$k}->{name} = $v;
        return $self->{counter}->{$c}->{$k}->{usage}++;
}

sub yyyymmdd {
        my $self = shift;

        my $t = shift || time;

        my (undef,undef,undef,$dd,$mm,$yyyy) = localtime($t);
        $mm++;
        $yyyy+=1900;
        return ($yyyy,$mm,$dd);
}

sub fmtdate {
        my $self = shift;

        my @out;
        my @formats = qw(%04d %02d %02d);
        while (my $v = shift) {
                my $f = shift @formats;
                push @out, sprintf($f, $v);
        }

print STDERR "fmtdate: ",join('|',@out),"\n";

        return (wantarray ? @out : join("-",@out));
}

sub add_counter_calendar($) {
        my $self = shift;

        my $t = shift || croak "add_counter_calendar without argument!";
        
        my ($yyyy,$mm,$dd) = $self->fmtdate($self->yyyymmdd($t));

        return $self->{counter}->{calendar}->{"$yyyy-$mm"}->{$dd}++;
}


sub counter {
        my $self = shift;

        my $c = shift || return;

        return if (! $self->{counter}->{$c});

        return $self->{counter}->{$c};
}

sub mbox_name2path {
        my $self = shift;

        my $mbox = shift || croak "folder_name2path needs mbox name";

        return $self->{config}->val('folders', $mbox) || croak "comeone removed folder $mbox from config?";
}

sub open_folder {
        my $self = shift;

        my $mbox = shift || croak "open_folder needs mbox name";

        if (! $self->{folder}->{$mbox}) {
                my $mbox_path = $self->mbox_name2path($mbox);

                print STDERR "about to open_folder($mbox)\n" if ($debug == 2);

                $self->{folder}->{$mbox} = $self->{mgr}->open($mbox_path) || croak "can't open folder $mbox at '$mbox_path': $!";

                print STDERR "open_folder($mbox) ok\n" if ($debug);
        }

        $self->{fetch_count} = 0;

        return $self->{folder}->{$mbox};

}

sub close_folder {
        my $self = shift;

        my $mbox = shift || croak "open_folder needs mbox name";

        $self->{folder}->{$mbox}->close(write => 'NEVER') || croak "can't close folder $mbox";

        # XXX this is rather agressive!!!
        $self->{folder} = {};
        return 
}

sub fetch_message {
        my $self = shift;

        my $mbox_id = shift || die "need mbox_id!";
        my ($mbox,$id) = split(/ /,$mbox_id);

        # return message with ID
        print STDERR "fetch $id from $mbox\n" if ($debug);

        if ($self->{fetch_count}++ > 100) {
                $self->close_folder($mbox);
                print STDERR "close_folder($mbox) forced on ",$self->{fetch_count},"iteration\n";
        }
        
        my $msg = $self->open_folder($mbox)->find($id);
        if ($msg) {
                return $msg;
        } else {
                print STDERR "can't find message $id in $mbox. Time to re-index?\n";
                return;
        }
}


sub search {
        my $self = shift;

        my $s = shift || carp "search called without argument!";

        $self->reset_counters;

        print STDERR "search_index($s)\n" if ($debug == 2);
        my @index_ids = $self->search_index($s);

        $self->{'index_ids'} = \@index_ids;

        #my $results = $#index_ids + 1;
        #$self->{'results'} = $results;
        
        my $results = $self->{'total_hits'} || ($#index_ids + 1);

        $self->{'curr_result'} = 0;

        print STDERR "$results results\n" if ($debug == 2);

        return $results || 'error';
}

sub decode_qp($) {
        my $self = shift;

        my $tmp = shift || return;

        sub decode($$) {
                my ($cp,$qp) = @_;
        print STDERR "decode($cp,$qp) -> " if ($debug == 2);
                $qp =~ s/=([a-f0-9][a-f0-9])/chr(hex($1))/ieg;
                $qp =~ s/_/ /g;
        print STDERR "$qp -> " if ($debug == 2);
                my $iconv = Text::Iconv->new($cp,'ISO-8859-2');
                return $iconv->convert($qp) || '';
        }

        $tmp =~ s/=\?([^\?]+)\?Q\?(.+?)\?=/decode($1,$2)/ge;
        $tmp =~ s/^\s*["']+(.*?)["']+\s*$/$1/g;
        #print STDERR "$tmp\n" if ($debug == 2);
        return $tmp;
}

sub unroll($$$) {
        my $self = shift;

        my ($message,$part,$sub) = @_;

        my @arr;

        return if (! $message->$part);

        foreach my $from ($message->$part) {
                my $tmp = $from->$sub || next;

                $tmp = $self->decode_qp($tmp);
                push @arr, $tmp;
        }

        return @arr;
}

sub fetch_all_results {
        my $self = shift;

        croak "results called before search!" if (! $self->{'index_ids'});

        print STDERR "fetch_all_results [",scalar @{$self->{'index_ids'}},"]\n" if ($debug == 2);

        my @arr;

        foreach my $id (@{$self->{'index_ids'}}) {
                push @arr, $self->fetch_result_by_id($id);
        }


        return @arr;
}

sub fetch_result {
        my $self = shift;

        my $args = {@_};

        croak "results called before search!" if (! $self->{'index_ids'});

        my $curr = $self->{'curr_result'}++;

        my $id = $self->{'index_ids'}->[$curr];
        
        print STDERR "fetch_result: $curr = $id\n" if ($debug == 2);

        return $self->fetch_result_by_id($id);
}

sub plain_text_body {
        my $self = shift;
        my $message = shift || croak "plain_text_body needs message!";

        my $body;

        if (! $message->isMultipart) {
                $body = $message->decoded->string;
        } else {
                foreach my $part ($message->parts) {
                        if ($part->body->mimeType eq 'text/plain') {
                                $body = $part->decoded->string;
                                last;
                        }
                }
        }

        # reformat with Text::Autoformat
        my $wrap = $self->{wrap_margin};
        if ($wrap && $body && $body =~ m/^.{$wrap}..*$/m) {
                $body =~ s/[\r\n]/\n/gs;
                $body = autoformat($body, {right=>$wrap});
                $body .="\n[reformated using autoformat, margin at $wrap]" if ($debug == 2);
        }

        return $body;
}


sub fetch_result_by_id {
        my $self = shift;

        my $id = shift || return;

        my $row = $self->{cache}->{$id};

        if (! $row) {

                print STDERR "fetch_result_by_id($id) not in cache, hitting disk\n" if ($debug == 2);

                my $message = $self->fetch_message($id) || return;

                $row->{'id'} = $id;

                foreach my $p (qw(from to cc bcc)) {
                        foreach my $v ($self->unroll($message,'from','phrase')) {
                                push @{$row->{$p}},$v;
                                $self->add_counter($p,$v);
                        }
                }
                $row->{'subject'} = $self->decode_qp($message->subject);
                $row->{'body'} = $self->plain_text_body($message);
                my $utime = str2time($message->date);

                $row->{'date_utime'} = $utime;

                $row->{'date'} = strftime("%Y-%m-%d %H:%M:%S", localtime($utime));
                $self->add_counter_calendar($utime);

                # XXX store in cache?
                $self->{cache}->{$id} = $row;
                print STDERR "$id stored in cache\n" if ($debug == 2);
        } else {
                print STDERR "fetch_result_by_id($id) in cache\n" if ($debug == 2);
        }

        return $row;
        
}
1	dpavlin	2	#!/usr/bin/perl -w
2
3			package MWS;
4
5			use strict;
6			use warnings;
7			use Carp;
8
9	dpavlin	3	use Mail::Box::Manager;
10	dpavlin	4	use Config::IniFiles;
11	dpavlin	13	use POSIX qw(strftime);
12	dpavlin	14	use Text::Autoformat;
13	dpavlin	16	use Text::Iconv;
14	dpavlin	19	use Text::Unaccent;
15	dpavlin	20	use Date::Parse;
16			use POSIX qw(strftime);
17	dpavlin	14
18	dpavlin	12	#use MWS_plucene;
19			use MWS_swish;
20	dpavlin	3
21	dpavlin	2	require Exporter;
22
23			our @ISA = qw(Exporter);
24
25			our %EXPORT_TAGS = ();
26			our @EXPORT_OK;
27			our @EXPORT;
28
29			our $VERSION = '1.00';
30
31			my $folder; # placeholder for folders
32
33	dpavlin	13	my $debug = 2;
34	dpavlin	2
35			sub new {
36			my $class = shift;
37			my $self = {};
38			bless($self, $class);
39
40	dpavlin	4	my $config_file = shift \|\| die "need index file";
41	dpavlin	2
42	dpavlin	4	$self->{config} = new Config::IniFiles( -file => $config_file );
43	dpavlin	2
44	dpavlin	4	my $index_file = $self->{config}->val('global', 'index') \|\| croak "can't find [index] section in config file with path of index";
45
46	dpavlin	12	$self->{mgr} = Mail::Box::Manager->new(access => 'r');
47			$self->{index_file} = $index_file;
48	dpavlin	4
49	dpavlin	2	# placeholder for opened folders
50			$self->{folder} = {};
51
52	dpavlin	14	$self->{wrap_margin} = $self->{config}->val('global', 'wrap_margin');
53	dpavlin	17	$self->{max_results} = $self->{config}->val('global', 'max_results') \|\| 100;
54	dpavlin	19	$self->reset_counters;
55	dpavlin	14
56	dpavlin	2	return $self;
57			}
58
59	dpavlin	19	sub normalize_string {
60			my $self = shift;
61
62			my $v = shift \|\| return;
63
64			$v = unac_string('ISO-8859-2', $v);
65			$v = join('',sort split(/\s+/,$v));
66			$v =~ s/\W+//g;
67
68			return $v;
69			}
70
71			# reset tables for search results
72			sub reset_counters {
73			my $self = shift;
74
75			$self->{counter} = {};
76
77			# foreach my $c (qw(thread from to cc bcc lists links att)) {
78			# $self->{counter}->{$c} = {};
79			# }
80
81			}
82
83			sub add_counter($$) {
84			my $self = shift;
85
86			my ($c,$v) = @_;
87			my $k = $self->normalize_string($v);
88
89			$self->{counter}->{$c}->{$k}->{name} = $v;
90			return $self->{counter}->{$c}->{$k}->{usage}++;
91			}
92
93	dpavlin	20	sub yyyymmdd {
94			my $self = shift;
95
96			my $t = shift \|\| time;
97
98			my (undef,undef,undef,$dd,$mm,$yyyy) = localtime($t);
99			$mm++;
100			$yyyy+=1900;
101			return ($yyyy,$mm,$dd);
102			}
103
104			sub fmtdate {
105			my $self = shift;
106
107			my @out;
108			my @formats = qw(%04d %02d %02d);
109			while (my $v = shift) {
110			my $f = shift @formats;
111			push @out, sprintf($f, $v);
112			}
113
114			print STDERR "fmtdate: ",join('\|',@out),"\n";
115
116			return (wantarray ? @out : join("-",@out));
117			}
118
119			sub add_counter_calendar($) {
120			my $self = shift;
121
122			my $t = shift \|\| croak "add_counter_calendar without argument!";
123
124			my ($yyyy,$mm,$dd) = $self->fmtdate($self->yyyymmdd($t));
125
126			return $self->{counter}->{calendar}->{"$yyyy-$mm"}->{$dd}++;
127			}
128
129
130	dpavlin	19	sub counter {
131			my $self = shift;
132
133			my $c = shift \|\| return;
134
135			return if (! $self->{counter}->{$c});
136
137			return $self->{counter}->{$c};
138			}
139
140	dpavlin	14	sub mbox_name2path {
141			my $self = shift;
142
143			my $mbox = shift \|\| croak "folder_name2path needs mbox name";
144
145			return $self->{config}->val('folders', $mbox) \|\| croak "comeone removed folder $mbox from config?";
146			}
147
148	dpavlin	7	sub open_folder {
149	dpavlin	2	my $self = shift;
150
151	dpavlin	7	my $mbox = shift \|\| croak "open_folder needs mbox name";
152	dpavlin	2
153			if (! $self->{folder}->{$mbox}) {
154	dpavlin	14	my $mbox_path = $self->mbox_name2path($mbox);
155
156	dpavlin	13	print STDERR "about to open_folder($mbox)\n" if ($debug == 2);
157	dpavlin	14
158	dpavlin	4	$self->{folder}->{$mbox} = $self->{mgr}->open($mbox_path) \|\| croak "can't open folder $mbox at '$mbox_path': $!";
159	dpavlin	14
160			print STDERR "open_folder($mbox) ok\n" if ($debug);
161	dpavlin	2	}
162
163	dpavlin	16	$self->{fetch_count} = 0;
164
165	dpavlin	7	return $self->{folder}->{$mbox};
166
167			}
168
169	dpavlin	14	sub close_folder {
170			my $self = shift;
171
172			my $mbox = shift \|\| croak "open_folder needs mbox name";
173
174	dpavlin	16	$self->{folder}->{$mbox}->close(write => 'NEVER') \|\| croak "can't close folder $mbox";
175
176			# XXX this is rather agressive!!!
177			$self->{folder} = {};
178			return
179	dpavlin	14	}
180
181	dpavlin	7	sub fetch_message {
182			my $self = shift;
183
184			my $mbox_id = shift \|\| die "need mbox_id!";
185			my ($mbox,$id) = split(/ /,$mbox_id);
186
187			# return message with ID
188	dpavlin	13	print STDERR "fetch $id from $mbox\n" if ($debug);
189	dpavlin	16
190			if ($self->{fetch_count}++ > 100) {
191			$self->close_folder($mbox);
192			print STDERR "close_folder($mbox) forced on ",$self->{fetch_count},"iteration\n";
193			}
194
195	dpavlin	17	my $msg = $self->open_folder($mbox)->find($id);
196			if ($msg) {
197			return $msg;
198			} else {
199	dpavlin	2	print STDERR "can't find message $id in $mbox. Time to re-index?\n";
200	dpavlin	17	return;
201			}
202	dpavlin	2	}
203
204
205			sub search {
206			my $self = shift;
207
208			my $s = shift \|\| carp "search called without argument!";
209
210	dpavlin	19	$self->reset_counters;
211
212	dpavlin	13	print STDERR "search_index($s)\n" if ($debug == 2);
213	dpavlin	9	my @index_ids = $self->search_index($s);
214	dpavlin	2
215			$self->{'index_ids'} = \@index_ids;
216
217	dpavlin	17	#my $results = $#index_ids + 1;
218			#$self->{'results'} = $results;
219
220			my $results = $self->{'total_hits'} \|\| ($#index_ids + 1);
221	dpavlin	2
222			$self->{'curr_result'} = 0;
223
224	dpavlin	13	print STDERR "$results results\n" if ($debug == 2);
225
226	dpavlin	2	return $results \|\| 'error';
227			}
228
229	dpavlin	16	sub decode_qp($) {
230			my $self = shift;
231
232			my $tmp = shift \|\| return;
233
234			sub decode($$) {
235			my ($cp,$qp) = @_;
236			print STDERR "decode($cp,$qp) -> " if ($debug == 2);
237			$qp =~ s/=([a-f0-9][a-f0-9])/chr(hex($1))/ieg;
238			$qp =~ s/_/ /g;
239	dpavlin	20	print STDERR "$qp -> " if ($debug == 2);
240			my $iconv = Text::Iconv->new($cp,'ISO-8859-2');
241			return $iconv->convert($qp) \|\| '';
242	dpavlin	16	}
243
244	dpavlin	20	$tmp =~ s/=\?([^\?]+)\?Q\?(.+?)\?=/decode($1,$2)/ge;
245	dpavlin	17	$tmp =~ s/^\s["']+(.?)["']+\s*$/$1/g;
246	dpavlin	20	#print STDERR "$tmp\n" if ($debug == 2);
247	dpavlin	16	return $tmp;
248			}
249
250	dpavlin	2	sub unroll($$$) {
251	dpavlin	13	my $self = shift;
252
253	dpavlin	2	my ($message,$part,$sub) = @_;
254
255			my @arr;
256
257	dpavlin	17	return if (! $message->$part);
258
259	dpavlin	2	foreach my $from ($message->$part) {
260	dpavlin	16	my $tmp = $from->$sub \|\| next;
261
262			$tmp = $self->decode_qp($tmp);
263			push @arr, $tmp;
264	dpavlin	2	}
265	dpavlin	14
266			return @arr;
267	dpavlin	2	}
268	dpavlin	4
269			sub fetch_all_results {
270			my $self = shift;
271
272			croak "results called before search!" if (! $self->{'index_ids'});
273
274	dpavlin	14	print STDERR "fetch_all_results [",scalar @{$self->{'index_ids'}},"]\n" if ($debug == 2);
275	dpavlin	13
276	dpavlin	4	my @arr;
277
278			foreach my $id (@{$self->{'index_ids'}}) {
279			push @arr, $self->fetch_result_by_id($id);
280			}
281
282	dpavlin	19
283	dpavlin	4	return @arr;
284			}
285
286	dpavlin	2	sub fetch_result {
287			my $self = shift;
288
289	dpavlin	3	my $args = {@_};
290
291	dpavlin	2	croak "results called before search!" if (! $self->{'index_ids'});
292
293			my $curr = $self->{'curr_result'}++;
294
295			my $id = $self->{'index_ids'}->[$curr];
296	dpavlin	14
297			print STDERR "fetch_result: $curr = $id\n" if ($debug == 2);
298	dpavlin	2
299	dpavlin	4	return $self->fetch_result_by_id($id);
300			}
301	dpavlin	2
302	dpavlin	7	sub plain_text_body {
303			my $self = shift;
304			my $message = shift \|\| croak "plain_text_body needs message!";
305
306	dpavlin	14	my $body;
307
308	dpavlin	7	if (! $message->isMultipart) {
309	dpavlin	14	$body = $message->decoded->string;
310	dpavlin	7	} else {
311			foreach my $part ($message->parts) {
312			if ($part->body->mimeType eq 'text/plain') {
313	dpavlin	14	$body = $part->decoded->string;
314			last;
315	dpavlin	7	}
316			}
317			}
318	dpavlin	14
319			# reformat with Text::Autoformat
320			my $wrap = $self->{wrap_margin};
321			if ($wrap && $body && $body =~ m/^.{$wrap}..*$/m) {
322	dpavlin	16	$body =~ s/[\r\n]/\n/gs;
323			$body = autoformat($body, {right=>$wrap});
324	dpavlin	14	$body .="\n[reformated using autoformat, margin at $wrap]" if ($debug == 2);
325			}
326
327			return $body;
328	dpavlin	7	}
329
330
331	dpavlin	4	sub fetch_result_by_id {
332			my $self = shift;
333
334			my $id = shift \|\| return;
335
336	dpavlin	13	my $row = $self->{cache}->{$id};
337	dpavlin	2
338	dpavlin	13	if (! $row) {
339	dpavlin	2
340	dpavlin	13	print STDERR "fetch_result_by_id($id) not in cache, hitting disk\n" if ($debug == 2);
341	dpavlin	2
342	dpavlin	17	my $message = $self->fetch_message($id) \|\| return;
343	dpavlin	13
344			$row->{'id'} = $id;
345	dpavlin	19
346			foreach my $p (qw(from to cc bcc)) {
347			foreach my $v ($self->unroll($message,'from','phrase')) {
348			push @{$row->{$p}},$v;
349			$self->add_counter($p,$v);
350			}
351			}
352	dpavlin	16	$row->{'subject'} = $self->decode_qp($message->subject);
353	dpavlin	13	$row->{'body'} = $self->plain_text_body($message);
354	dpavlin	20	my $utime = str2time($message->date);
355	dpavlin	13
356	dpavlin	20	$row->{'date_utime'} = $utime;
357
358			$row->{'date'} = strftime("%Y-%m-%d %H:%M:%S", localtime($utime));
359			$self->add_counter_calendar($utime);
360
361	dpavlin	13	# XXX store in cache?
362			$self->{cache}->{$id} = $row;
363			print STDERR "$id stored in cache\n" if ($debug == 2);
364			} else {
365			print STDERR "fetch_result_by_id($id) in cache\n" if ($debug == 2);
366			}
367
368	dpavlin	2	return $row;
369
370			}