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 MIME::Base64;

#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 );

        $self->{config_file} = $config_file;
        $config_file =~ s/\.conf.*$//;
        $self->{config_name} = $config_file;

        my $index_dir = $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_dir} = $index_dir;

        # 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 lc($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;

        carp "search called without argument!" if (! @_);

        $self->reset_counters;

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

        $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;

        $self->reset_counters;

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

        return $results || 'error';
}

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

        my $tmp = shift || return;

        sub decode($$$) {
                my ($cp,$enc,$qp) = @_;

                print STDERR "decode($cp,$qp) -> " if ($debug == 2);

                if (uc($enc) eq "Q") {
                        $qp =~ s/=([a-f0-9][a-f0-9])/chr(hex($1))/ieg;
                        $qp =~ s/_/ /g;
                } elsif (uc($enc) eq "B") {
                        $qp = decode_base64($qp);
                } else {
                        croak "unsupported encoding '$enc' in decode_qp\n";
                        return $qp;
                }

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

                my $iconv = Text::Iconv->new($cp,'ISO-8859-2');
                return $iconv->convert($qp) || '';
        }

        $tmp =~ s/=\?([^\?]+)\?([QB])\?(.+?)\?=/decode($1,$2,$3)/ige;
        $tmp =~ s/^\s*["']+(.*?)["']+\s*$/$1/g;
        #print STDERR "$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;
                        }
                }
        }

        if (! $body) {
                $body = "[plain/text body not found]" if ($debug == 2);
                print STDERR "plain/text body not found\n" if ($debug);
                return;
        }

        # reformat with Text::Autoformat
        my $wrap = $self->{wrap_margin};
        if ($wrap && $body && $body =~ m/^.{$wrap}..*$/m) {
                $body = autoformat($body, {right=>$wrap, all=>1});
                $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($message,$p,'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);
                foreach my $p (qw(from to cc bcc)) {
                        foreach my $v (@{$row->{$p}}) {
                                $self->add_counter($p,$v);
                        }
                }

                $self->add_counter_calendar($row->{date_utime});
        }

        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	21	use MIME::Base64;
18	dpavlin	14
19	dpavlin	12	#use MWS_plucene;
20			use MWS_swish;
21	dpavlin	3
22	dpavlin	2	require Exporter;
23
24			our @ISA = qw(Exporter);
25
26			our %EXPORT_TAGS = ();
27			our @EXPORT_OK;
28			our @EXPORT;
29
30			our $VERSION = '1.00';
31
32			my $folder; # placeholder for folders
33
34	dpavlin	13	my $debug = 2;
35	dpavlin	2
36			sub new {
37			my $class = shift;
38			my $self = {};
39			bless($self, $class);
40
41	dpavlin	4	my $config_file = shift \|\| die "need index file";
42	dpavlin	2
43	dpavlin	4	$self->{config} = new Config::IniFiles( -file => $config_file );
44	dpavlin	2
45	dpavlin	27	$self->{config_file} = $config_file;
46			$config_file =~ s/\.conf.*$//;
47			$self->{config_name} = $config_file;
48	dpavlin	4
49	dpavlin	27	my $index_dir = $self->{config}->val('global', 'index') \|\| croak "can't find [index] section in config file with path of index";
50
51	dpavlin	12	$self->{mgr} = Mail::Box::Manager->new(access => 'r');
52	dpavlin	27	$self->{index_dir} = $index_dir;
53	dpavlin	4
54	dpavlin	2	# placeholder for opened folders
55			$self->{folder} = {};
56
57	dpavlin	14	$self->{wrap_margin} = $self->{config}->val('global', 'wrap_margin');
58	dpavlin	17	$self->{max_results} = $self->{config}->val('global', 'max_results') \|\| 100;
59	dpavlin	19	$self->reset_counters;
60	dpavlin	14
61	dpavlin	2	return $self;
62			}
63
64	dpavlin	19	sub normalize_string {
65			my $self = shift;
66
67			my $v = shift \|\| return;
68
69			$v = unac_string('ISO-8859-2', $v);
70			$v = join('',sort split(/\s+/,$v));
71			$v =~ s/\W+//g;
72
73	dpavlin	23	return lc($v);
74	dpavlin	19	}
75
76			# reset tables for search results
77			sub reset_counters {
78			my $self = shift;
79
80			$self->{counter} = {};
81
82			# foreach my $c (qw(thread from to cc bcc lists links att)) {
83			# $self->{counter}->{$c} = {};
84			# }
85
86			}
87
88			sub add_counter($$) {
89			my $self = shift;
90
91			my ($c,$v) = @_;
92			my $k = $self->normalize_string($v);
93
94			$self->{counter}->{$c}->{$k}->{name} = $v;
95			return $self->{counter}->{$c}->{$k}->{usage}++;
96			}
97
98	dpavlin	20	sub yyyymmdd {
99			my $self = shift;
100
101			my $t = shift \|\| time;
102
103			my (undef,undef,undef,$dd,$mm,$yyyy) = localtime($t);
104			$mm++;
105			$yyyy+=1900;
106			return ($yyyy,$mm,$dd);
107			}
108
109			sub fmtdate {
110			my $self = shift;
111
112			my @out;
113			my @formats = qw(%04d %02d %02d);
114			while (my $v = shift) {
115			my $f = shift @formats;
116			push @out, sprintf($f, $v);
117			}
118
119			print STDERR "fmtdate: ",join('\|',@out),"\n";
120
121			return (wantarray ? @out : join("-",@out));
122			}
123
124			sub add_counter_calendar($) {
125			my $self = shift;
126
127			my $t = shift \|\| croak "add_counter_calendar without argument!";
128
129			my ($yyyy,$mm,$dd) = $self->fmtdate($self->yyyymmdd($t));
130
131			return $self->{counter}->{calendar}->{"$yyyy-$mm"}->{$dd}++;
132			}
133
134
135	dpavlin	19	sub counter {
136			my $self = shift;
137
138			my $c = shift \|\| return;
139
140			return if (! $self->{counter}->{$c});
141
142			return $self->{counter}->{$c};
143			}
144
145	dpavlin	14	sub mbox_name2path {
146			my $self = shift;
147
148			my $mbox = shift \|\| croak "folder_name2path needs mbox name";
149
150			return $self->{config}->val('folders', $mbox) \|\| croak "comeone removed folder $mbox from config?";
151			}
152
153	dpavlin	7	sub open_folder {
154	dpavlin	2	my $self = shift;
155
156	dpavlin	7	my $mbox = shift \|\| croak "open_folder needs mbox name";
157	dpavlin	2
158			if (! $self->{folder}->{$mbox}) {
159	dpavlin	14	my $mbox_path = $self->mbox_name2path($mbox);
160
161	dpavlin	13	print STDERR "about to open_folder($mbox)\n" if ($debug == 2);
162	dpavlin	14
163	dpavlin	4	$self->{folder}->{$mbox} = $self->{mgr}->open($mbox_path) \|\| croak "can't open folder $mbox at '$mbox_path': $!";
164	dpavlin	14
165			print STDERR "open_folder($mbox) ok\n" if ($debug);
166	dpavlin	2	}
167
168	dpavlin	16	$self->{fetch_count} = 0;
169
170	dpavlin	7	return $self->{folder}->{$mbox};
171
172			}
173
174	dpavlin	14	sub close_folder {
175			my $self = shift;
176
177			my $mbox = shift \|\| croak "open_folder needs mbox name";
178
179	dpavlin	16	$self->{folder}->{$mbox}->close(write => 'NEVER') \|\| croak "can't close folder $mbox";
180
181			# XXX this is rather agressive!!!
182			$self->{folder} = {};
183			return
184	dpavlin	14	}
185
186	dpavlin	7	sub fetch_message {
187			my $self = shift;
188
189			my $mbox_id = shift \|\| die "need mbox_id!";
190			my ($mbox,$id) = split(/ /,$mbox_id);
191
192			# return message with ID
193	dpavlin	13	print STDERR "fetch $id from $mbox\n" if ($debug);
194	dpavlin	16
195			if ($self->{fetch_count}++ > 100) {
196			$self->close_folder($mbox);
197			print STDERR "close_folder($mbox) forced on ",$self->{fetch_count},"iteration\n";
198			}
199
200	dpavlin	17	my $msg = $self->open_folder($mbox)->find($id);
201			if ($msg) {
202			return $msg;
203			} else {
204	dpavlin	2	print STDERR "can't find message $id in $mbox. Time to re-index?\n";
205	dpavlin	17	return;
206			}
207	dpavlin	2	}
208
209
210			sub search {
211			my $self = shift;
212
213	dpavlin	21	carp "search called without argument!" if (! @_);
214	dpavlin	2
215	dpavlin	19	$self->reset_counters;
216
217	dpavlin	21	print STDERR "search(",join(" ",@_),")\n" if ($debug == 2);
218			my @index_ids = $self->search_index(@_);
219	dpavlin	2
220			$self->{'index_ids'} = \@index_ids;
221
222	dpavlin	17	#my $results = $#index_ids + 1;
223			#$self->{'results'} = $results;
224
225			my $results = $self->{'total_hits'} \|\| ($#index_ids + 1);
226	dpavlin	2
227			$self->{'curr_result'} = 0;
228
229	dpavlin	23	$self->reset_counters;
230
231	dpavlin	13	print STDERR "$results results\n" if ($debug == 2);
232
233	dpavlin	2	return $results \|\| 'error';
234			}
235
236	dpavlin	16	sub decode_qp($) {
237			my $self = shift;
238
239			my $tmp = shift \|\| return;
240
241	dpavlin	21	sub decode($$$) {
242			my ($cp,$enc,$qp) = @_;
243
244			print STDERR "decode($cp,$qp) -> " if ($debug == 2);
245
246			if (uc($enc) eq "Q") {
247			$qp =~ s/=([a-f0-9][a-f0-9])/chr(hex($1))/ieg;
248			$qp =~ s/_/ /g;
249			} elsif (uc($enc) eq "B") {
250			$qp = decode_base64($qp);
251			} else {
252			croak "unsupported encoding '$enc' in decode_qp\n";
253			return $qp;
254			}
255
256	dpavlin	22	print STDERR "$qp\n" if ($debug == 2);
257	dpavlin	21
258	dpavlin	20	my $iconv = Text::Iconv->new($cp,'ISO-8859-2');
259			return $iconv->convert($qp) \|\| '';
260	dpavlin	16	}
261
262	dpavlin	21	$tmp =~ s/=\?([^\?]+)\?([QB])\?(.+?)\?=/decode($1,$2,$3)/ige;
263	dpavlin	17	$tmp =~ s/^\s["']+(.?)["']+\s*$/$1/g;
264	dpavlin	20	#print STDERR "$tmp\n" if ($debug == 2);
265	dpavlin	16	return $tmp;
266			}
267
268	dpavlin	2	sub unroll($$$) {
269	dpavlin	13	my $self = shift;
270
271	dpavlin	2	my ($message,$part,$sub) = @_;
272
273			my @arr;
274
275	dpavlin	17	return if (! $message->$part);
276
277	dpavlin	2	foreach my $from ($message->$part) {
278	dpavlin	16	my $tmp = $from->$sub \|\| next;
279
280			$tmp = $self->decode_qp($tmp);
281			push @arr, $tmp;
282	dpavlin	2	}
283	dpavlin	14
284			return @arr;
285	dpavlin	2	}
286	dpavlin	4
287			sub fetch_all_results {
288			my $self = shift;
289
290			croak "results called before search!" if (! $self->{'index_ids'});
291
292	dpavlin	14	print STDERR "fetch_all_results [",scalar @{$self->{'index_ids'}},"]\n" if ($debug == 2);
293	dpavlin	13
294	dpavlin	4	my @arr;
295
296			foreach my $id (@{$self->{'index_ids'}}) {
297			push @arr, $self->fetch_result_by_id($id);
298			}
299
300	dpavlin	19
301	dpavlin	4	return @arr;
302			}
303
304	dpavlin	2	sub fetch_result {
305			my $self = shift;
306
307	dpavlin	3	my $args = {@_};
308
309	dpavlin	2	croak "results called before search!" if (! $self->{'index_ids'});
310
311			my $curr = $self->{'curr_result'}++;
312
313			my $id = $self->{'index_ids'}->[$curr];
314	dpavlin	14
315			print STDERR "fetch_result: $curr = $id\n" if ($debug == 2);
316	dpavlin	2
317	dpavlin	4	return $self->fetch_result_by_id($id);
318			}
319	dpavlin	2
320	dpavlin	7	sub plain_text_body {
321			my $self = shift;
322			my $message = shift \|\| croak "plain_text_body needs message!";
323
324	dpavlin	14	my $body;
325
326	dpavlin	7	if (! $message->isMultipart) {
327	dpavlin	14	$body = $message->decoded->string;
328	dpavlin	7	} else {
329			foreach my $part ($message->parts) {
330			if ($part->body->mimeType eq 'text/plain') {
331	dpavlin	14	$body = $part->decoded->string;
332			last;
333	dpavlin	7	}
334			}
335			}
336	dpavlin	14
337	dpavlin	25	if (! $body) {
338	dpavlin	26	$body = "[plain/text body not found]" if ($debug == 2);
339			print STDERR "plain/text body not found\n" if ($debug);
340			return;
341	dpavlin	25	}
342
343	dpavlin	14	# reformat with Text::Autoformat
344			my $wrap = $self->{wrap_margin};
345			if ($wrap && $body && $body =~ m/^.{$wrap}..*$/m) {
346	dpavlin	21	$body = autoformat($body, {right=>$wrap, all=>1});
347	dpavlin	14	$body .="\n[reformated using autoformat, margin at $wrap]" if ($debug == 2);
348			}
349
350			return $body;
351	dpavlin	7	}
352
353
354	dpavlin	4	sub fetch_result_by_id {
355			my $self = shift;
356
357			my $id = shift \|\| return;
358
359	dpavlin	13	my $row = $self->{cache}->{$id};
360	dpavlin	2
361	dpavlin	13	if (! $row) {
362	dpavlin	2
363	dpavlin	13	print STDERR "fetch_result_by_id($id) not in cache, hitting disk\n" if ($debug == 2);
364	dpavlin	2
365	dpavlin	17	my $message = $self->fetch_message($id) \|\| return;
366	dpavlin	13
367			$row->{'id'} = $id;
368	dpavlin	19
369			foreach my $p (qw(from to cc bcc)) {
370	dpavlin	22	foreach my $v ($self->unroll($message,$p,'phrase')) {
371	dpavlin	19	push @{$row->{$p}},$v;
372			$self->add_counter($p,$v);
373			}
374			}
375	dpavlin	16	$row->{'subject'} = $self->decode_qp($message->subject);
376	dpavlin	13	$row->{'body'} = $self->plain_text_body($message);
377	dpavlin	20	my $utime = str2time($message->date);
378	dpavlin	13
379	dpavlin	20	$row->{'date_utime'} = $utime;
380
381			$row->{'date'} = strftime("%Y-%m-%d %H:%M:%S", localtime($utime));
382			$self->add_counter_calendar($utime);
383
384	dpavlin	13	# XXX store in cache?
385			$self->{cache}->{$id} = $row;
386			print STDERR "$id stored in cache\n" if ($debug == 2);
387			} else {
388			print STDERR "fetch_result_by_id($id) in cache\n" if ($debug == 2);
389	dpavlin	23	foreach my $p (qw(from to cc bcc)) {
390			foreach my $v (@{$row->{$p}}) {
391			$self->add_counter($p,$v);
392			}
393			}
394
395			$self->add_counter_calendar($row->{date_utime});
396	dpavlin	13	}
397
398	dpavlin	2	return $row;
399
400			}