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package SL::IMAPClient;
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use strict;
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use warnings;
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use utf8;
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use IO::Socket::INET;
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use IO::Socket::SSL;
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use Mail::IMAPClient;
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use Email::MIME;
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use File::MimeInfo::Magic;
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use Encode qw(encode decode);
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use Encode::IMAPUTF7;
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use SL::Locale;
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use SL::SessionFile;
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use SL::Locale::String qw(t8);
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use SL::DB::EmailImport;
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use SL::DB::EmailJournal;
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use SL::DB::EmailJournalAttachment;
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use SL::DB::Order;
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sub new {
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my ($class, %params) = @_;
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my $config = $::lx_office_conf{imap_client} || {};
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my $server_locale = Locale->new($::lx_office_conf{server}->{language});
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my %record_type_to_folder = (
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sales_quotation => $server_locale->text('Sales Quotations'),
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sales_order => $server_locale->text('Sales Orders'),
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);
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my %record_folder_to_type = reverse %record_type_to_folder;
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my $self = bless {
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enabled => $config->{enabled},
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hostname => $config->{hostname},
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port => $config->{port},
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ssl => $config->{ssl},
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username => $config->{username},
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password => $config->{password},
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base_folder => $config->{base_folder} || 'INBOX',
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record_type_to_folder => \%record_type_to_folder,
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record_folder_to_type => \%record_folder_to_type,
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%params,
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}, $class;
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return unless $self->{enabled};
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$self->_create_imap_client();
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return $self;
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}
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sub DESTROY {
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my ($self) = @_;
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if ($self->{imap_client}) {
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$self->{imap_client}->logout();
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}
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}
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sub store_email_in_email_folder {
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my ($self, $email_string, $folder_path) = @_;
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$folder_path ||= $self->{base_folder};
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my $folder_string = $self->get_folder_string_from_path($folder_path);
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$self->{imap_client}->append_string($folder_string, $email_string)
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or die "Could not store email in folder '$folder_string': "
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. $self->{imap_client}->LastError() . "\n";
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}
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sub set_flag_for_email {
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my ($self, $email_journal, $imap_flag) = @_;
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return unless $imap_flag;
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my $folder_string = $email_journal->folder;
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$self->{imap_client}->select($folder_string)
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or die "Could not select IMAP folder '$folder_string': $@\n";
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my $folder_uidvalidity = $self->{imap_client}->uidvalidity($folder_string)
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or die "Could not get UIDVALIDITY for folder '$folder_string': $@\n";
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if ($folder_uidvalidity != $email_journal->folder_uidvalidity) {
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die "Folder has changed: $folder_string\n"
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}
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my $uid = $email_journal->uid;
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$self->{imap_client}->set_flag($imap_flag, [$uid])
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or die "Could not add flag '$imap_flag' to message '$uid': "
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. $self->{imap_client}->LastError() . "\n";
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}
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sub update_emails_from_folder {
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my ($self, $folder_path, $params) = @_;
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$folder_path ||= $self->{base_folder};
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my $folder_string = $self->get_folder_string_from_path($folder_path);
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my $email_import =
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_update_emails_from_folder_strings($self, $folder_path, [$folder_string], $params);
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return $email_import;
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}
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sub update_emails_from_subfolders {
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my ($self, $base_folder_path, $params) = @_;
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$base_folder_path ||= $self->{base_folder};
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my $base_folder_string = $self->get_folder_string_from_path($base_folder_path);
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my @subfolder_strings = $self->{imap_client}->folders($base_folder_string)
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or die "Could not get subfolders via IMAP: $@\n";
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@subfolder_strings = grep { $_ ne $base_folder_string } @subfolder_strings;
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my $email_import =
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_update_emails_from_folder_strings($self, $base_folder_path, \@subfolder_strings, $params);
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return $email_import;
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}
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sub _update_emails_from_folder_strings {
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my ($self, $base_folder_path, $folder_strings, $params) = @_;
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my $dbh = SL::DB->client->dbh;
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my $email_import;
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SL::DB->client->with_transaction(sub {
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foreach my $folder_string (@$folder_strings) {
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$self->{imap_client}->select($folder_string)
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or die "Could not select IMAP folder '$folder_string': $@\n";
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my $folder_uidvalidity = $self->{imap_client}->uidvalidity($folder_string)
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or die "Could not get UIDVALIDITY for folder '$folder_string': $@\n";
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my $msg_uids = $self->{imap_client}->messages
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or die "Could not get messages via IMAP: $@\n";
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my $query = <<SQL;
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SELECT uid
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FROM email_imports ei
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LEFT JOIN email_journal ej
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ON ej.email_import_id = ei.id
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WHERE ei.host_name = ?
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AND ei.user_name = ?
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AND ej.folder = ?
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AND ej.folder_uidvalidity = ?
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SQL
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my $existing_uids = $dbh->selectall_hashref($query, 'uid', undef,
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$self->{hostname}, $self->{username}, $folder_string, $folder_uidvalidity);
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my @new_msg_uids = grep { !$existing_uids->{$_} } @$msg_uids;
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next unless @new_msg_uids;
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$email_import ||= $self->_create_email_import($base_folder_path)->save();
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foreach my $new_uid (@new_msg_uids) {
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my $new_email_string = $self->{imap_client}->message_string($new_uid);
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my $email = Email::MIME->new($new_email_string);
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my $email_journal = $self->_create_email_journal(
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$email, $email_import, $new_uid, $folder_string, $folder_uidvalidity, $params->{email_journal}
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);
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$email_journal->save();
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}
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}
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});
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return $email_import;
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}
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sub _create_email_import {
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my ($self, $folder_path) = @_;
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my $email_import = SL::DB::EmailImport->new(
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host_name => $self->{hostname},
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user_name => $self->{username},
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folder => $folder_path,
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);
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return $email_import;
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}
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sub _create_email_journal {
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my ($self, $email, $email_import, $uid, $folder_string, $folder_uidvalidity, $params) = @_;
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my @email_parts = $email->parts; # get parts or self
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my $text_part = $email_parts[0];
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my $body = $text_part->body;
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my $header_string = join "\r\n",
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(map { $_ . ': ' . $email->header($_) } $email->header_names);
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my $date = $self->_parse_date($email->header('Date'));
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my $recipients = $email->header('To');
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$recipients .= ', ' . $email->header('Cc') if ($email->header('Cc'));
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$recipients .= ', ' . $email->header('Bcc') if ($email->header('Bcc'));
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my @attachments = ();
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$email->walk_parts(sub {
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my ($part) = @_;
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my $filename = $part->filename;
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if ($filename) {
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my $mime_type = $part->content_type;
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$mime_type =~ s/;.*//; # clean up mime_type
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my $content = $part->body;
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my $attachment = SL::DB::EmailJournalAttachment->new(
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name => $filename,
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content => $content,
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mime_type => $mime_type,
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);
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push @attachments, $attachment;
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}
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});
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my $email_journal = SL::DB::EmailJournal->new(
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email_import_id => $email_import->id,
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folder => $folder_string,
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folder_uidvalidity => $folder_uidvalidity,
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uid => $uid,
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status => 'imported',
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extended_status => '',
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from => $email->header('From') || '',
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recipients => $recipients,
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sent_on => $date,
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subject => $email->header('Subject') || '',
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body => $body,
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headers => $header_string,
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attachments => \@attachments,
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%$params,
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);
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return $email_journal;
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}
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sub _parse_date {
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my ($self, $date) = @_;
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return '' unless $date;
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my $parse_date = $date;
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# replace whitespaces with single space
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$parse_date =~ s/\s+/ /g;
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# remove leading and trailing whitespaces
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$parse_date =~ s/^\s+|\s+$//g;
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# remove day-name
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$parse_date =~ s/^[A-Z][a-z][a-z], //;
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# add missing seconds
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$parse_date =~ s/( \d\d:\d\d) /$1:00 /;
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my $strp = DateTime::Format::Strptime->new(
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pattern => '%d %b %Y %H:%M:%S %z',
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time_zone => 'UTC',
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);
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my $dt = $strp->parse_datetime($parse_date)
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or die "Could not parse date: $date\n";
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return $dt->strftime('%Y-%m-%d %H:%M:%S');
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}
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sub update_email_files_for_record {
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my ($self, $record) = @_;
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my $folder_string = $self->_get_folder_string_for_record($record);
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return unless $self->{imap_client}->exists($folder_string);
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$self->{imap_client}->select($folder_string)
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or die "Could not select IMAP folder '$folder_string': $@\n";
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my $msg_uids = $self->{imap_client}->messages
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or die "Could not get messages via IMAP: $@\n";
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my $dbh = $record->dbh;
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my $query = <<SQL;
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SELECT uid
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FROM files
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WHERE object_id = ?
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AND object_type = ?
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AND source = 'uploaded'
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AND file_type = 'attachment'
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SQL
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my $existing_uids = $dbh->selectall_hashref($query, 'uid', undef,
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$record->id, $record->type);
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my @new_msg_uids = grep { !$existing_uids->{$_} } @$msg_uids;
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foreach my $msg_uid (@new_msg_uids) {
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my $sess_fname = "mail_download_" . $record->type . "_" . $record->id . "_" . $msg_uid;
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my $file_name =
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decode('MIME-Header', $self->{imap_client}->subject($msg_uid)) . '.eml';
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my $sfile = SL::SessionFile->new($sess_fname, mode => 'w');
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$self->{imap_client}->message_to_file($sfile->fh, $msg_uid)
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or die "Could not fetch message $msg_uid from IMAP: $@\n";
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$sfile->fh->close;
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my $mime_type = File::MimeInfo::Magic::magic($sfile->file_name);
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my $fileobj = SL::File->save(
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object_id => $record->id,
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object_type => $record->type,
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mime_type => $mime_type,
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source => 'uploaded',
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uid => "$msg_uid",
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file_type => 'attachment',
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file_name => $file_name,
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file_path => $sfile->file_name
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);
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unlink($sfile->file_name);
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}
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}
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sub update_email_subfolders_and_files_for_records {
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my ($self) = @_;
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my $base_folder_path = $self->{base_folder};
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my $base_folder_string = $self->get_folder_string_from_path($base_folder_path);
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my $folder_strings = $self->{imap_client}->folders($base_folder_string)
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or die "Could not get folders via IMAP: $@\n";
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my @subfolder_strings = grep { $_ ne $base_folder_string } @$folder_strings;
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# Store the emails to the records
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foreach my $subfolder_string (@subfolder_strings) {
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my $ilike_folder_path = $self->get_ilike_folder_path_from_string($subfolder_string);
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my (
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$ilike_record_folder_path, # is greedily matched
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$ilike_customer_number, # no spaces allowed
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$ilike_customer_name,
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$record_folder,
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$ilike_record_number
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) = $ilike_folder_path =~ m|^(.+)/([^\s]+) (.+)/(.+)/(.+)|;
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my $record_type = $self->{record_folder_to_type}->{$record_folder};
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next unless $record_type;
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# TODO make it generic for all records
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my $is_quotation = $record_type eq 'sales_quotation' ? 1 : 0;
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my $number_field = $is_quotation ? 'quonumber' : 'ordnumber';
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my $record = SL::DB::Manager::Order->get_first(
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query => [
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and => [
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vendor_id => undef,
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quotation => $is_quotation,
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$number_field => { ilike => $ilike_record_number },
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],
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]);
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next unless $record;
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$self->update_email_files_for_record($record);
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}
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return \@subfolder_strings;
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}
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sub create_folder {
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my ($self, $folder_name) = @_;
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return if $self->{imap_client}->exists($folder_name);
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$self->{imap_client}->create($folder_name)
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or die "Could not create IMAP folder '$folder_name': $@\n";
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$self->{imap_client}->subscribe($folder_name)
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or die "Could not subscribe to IMAP folder '$folder_name': $@\n";
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return;
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}
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sub get_folder_string_from_path {
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my ($self, $folder_path) = @_;
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my $separator = $self->{imap_client}->separator();
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if ($separator ne '/') {
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my $replace_sep = $separator ne '_' ? '_' : '-';
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$folder_path =~ s|\Q${separator}|$replace_sep|g; # \Q -> escape special chars
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$folder_path =~ s|/|${separator}|g; # replace / with separator
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}
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my $folder_string = encode('IMAP-UTF-7', $folder_path);
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return $folder_string;
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}
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sub get_ilike_folder_path_from_string {
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my ($self, $folder_string) = @_;
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my $separator = $self->{imap_client}->separator();
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my $folder_path = decode('IMAP-UTF-7', $folder_string);
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$folder_path =~ s|\Q${separator}|/|g; # \Q -> escape special chars
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$folder_path =~ s|-|_|g; # for ilike matching
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return $folder_path;
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}
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sub create_folder_for_record {
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my ($self, $record) = @_;
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my $folder_string = $self->_get_folder_string_for_record($record);
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$self->create_folder($folder_string);
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return;
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}
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sub clean_up_imported_emails_from_folder {
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my ($self, $folder_path) = @_;
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$folder_path ||= $self->{base_folder};
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my $folder_string = $self->get_folder_string_from_path($folder_path);
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$self->_clean_up_imported_emails_from_folder_strings([$folder_string]);
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}
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sub _clean_up_imported_emails_from_folder_strings {
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my ($self, $folder_strings) = @_;
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my $dbh = SL::DB->client->dbh;
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foreach my $folder_string (@$folder_strings) {
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$self->{imap_client}->select($folder_string)
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or die "Could not select IMAP folder '$folder_string': $@\n";
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my $folder_uidvalidity = $self->{imap_client}->uidvalidity($folder_string)
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or die "Could not get UIDVALIDITY for folder '$folder_string': $@\n";
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my $msg_uids = $self->{imap_client}->messages
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or die "Could not get messages via IMAP: $@\n";
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my $query = <<SQL;
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SELECT uid
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FROM email_imports ei
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LEFT JOIN email_journal ej
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ON ej.email_import_id = ei.id
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WHERE ei.host_name = ?
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AND ei.user_name = ?
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AND ej.folder = ?
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AND ej.folder_uidvalidity = ?
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SQL
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my $existing_uids = $dbh->selectall_hashref($query, 'uid', undef,
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$self->{hostname}, $self->{username}, $folder_string, $folder_uidvalidity);
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my @imported_msg_uids = grep { $existing_uids->{$_} } @$msg_uids;
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next unless scalar @imported_msg_uids;
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$self->{imap_client}->delete_message(\@imported_msg_uids)
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or die "Could not delete messages via IMAP: $@\n";
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}
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}
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sub clean_up_record_subfolders {
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my ($self, $active_records) = @_;
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my $subfolder_strings =
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$self->update_email_subfolders_and_files_for_records();
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my @active_folder_strings = map { $self->_get_folder_string_for_record($_) }
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@$active_records;
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my %keep_folder = map { $_ => 1 } @active_folder_strings;
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my @folders_to_delete = grep { !$keep_folder{$_} } @$subfolder_strings;
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foreach my $folder (@folders_to_delete) {
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$self->{imap_client}->delete($folder)
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or die "Could not delete IMAP folder '$folder': $@\n";
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}
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}
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sub _get_folder_string_for_record {
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my ($self, $record) = @_;
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my $customer_vendor = $record->customervendor;
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#repalce / with _
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my %string_parts = ();
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$string_parts{cv_number} = $customer_vendor->number;
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$string_parts{cv_name} = $customer_vendor->name;
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$string_parts{record_number} = $record->number;
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foreach my $key (keys %string_parts) {
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$string_parts{$key} =~ s|/|_|g;
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}
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my $record_folder_path =
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$self->{base_folder} . '/' .
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$string_parts{cv_number} . ' ' . $string_parts{cv_name} . '/' .
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$self->{record_type_to_folder}->{$record->type} . '/' .
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$string_parts{record_number};
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my $folder_string = $self->get_folder_string_from_path($record_folder_path);
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return $folder_string;
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}
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sub _create_imap_client {
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my ($self) = @_;
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my $socket;
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if ($self->{ssl}) {
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$socket = IO::Socket::SSL->new(
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Proto => 'tcp',
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PeerAddr => $self->{hostname},
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PeerPort => $self->{port} || 993,
|
|
);
|
|
} else {
|
|
$socket = IO::Socket::INET->new(
|
|
Proto => 'tcp',
|
|
PeerAddr => $self->{hostname},
|
|
PeerPort => $self->{port} || 143,
|
|
);
|
|
}
|
|
if (!$socket) {
|
|
die "Failed to create socket for IMAP client: $@\n";
|
|
}
|
|
|
|
my $imap_client = Mail::IMAPClient->new(
|
|
Socket => $socket,
|
|
User => $self->{username},
|
|
Password => $self->{password},
|
|
Uid => 1,
|
|
peek => 1, # Don't change the \Seen flag
|
|
) or do {
|
|
die "Failed to create IMAP Client: $@\n"
|
|
};
|
|
|
|
$imap_client->IsAuthenticated() or do {
|
|
die "IMAP Client login failed: " . $imap_client->LastError() . "\n";
|
|
};
|
|
|
|
$self->{imap_client} = $imap_client;
|
|
return $imap_client;
|
|
}
|
|
|
|
1;
|
|
|
|
|
|
__END__
|
|
|
|
=pod
|
|
|
|
=encoding utf8
|
|
|
|
=head1 NAME
|
|
|
|
SL::IMAPClient - Base class for interacting with email server from kivitendo
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
use SL::IMAPClient;
|
|
|
|
# uses the config in config/kivitendo.conf
|
|
my $imap_client = SL::IMAPClient->new();
|
|
|
|
# can also be used with a custom config, overriding the global config
|
|
my %config = (
|
|
enabled => 1,
|
|
hostname => 'imap.example.com',
|
|
username => 'test_user',
|
|
password => 'test_password',
|
|
ssl => 1,
|
|
base_folder => 'INBOX',
|
|
);
|
|
my $imap_client = SL::IMAPClient->new(%config);
|
|
|
|
# create email folder for record
|
|
# folder structure: base_folder/customer_vendor_number customer_vendor_name/type/record_number
|
|
# e.g. INBOX/1234 Testkunde/Angebot/123
|
|
# if the folder already exists, nothing happens
|
|
$imap_client->create_folder_for_record($record);
|
|
|
|
# update emails for record
|
|
# fetches all emails from the IMAP server and saves them as attachments
|
|
$imap_client->update_email_files_for_record($record);
|
|
|
|
=head1 OVERVIEW
|
|
|
|
Mail can be sent from kivitendo via the sendmail command or the smtp protocol.
|
|
|
|
|
|
=head1 INTERNAL DATA TYPES
|
|
|
|
=over 2
|
|
|
|
=item C<%$self->{record_type_to_folder}>
|
|
|
|
Due to the lack of a single global mapping for $record->type,
|
|
type is mapped to the corresponding translation. All types which
|
|
use this module are currently mapped and should be mapped.
|
|
|
|
=item C<%$self->record_folder_to_type>
|
|
|
|
The reverse mapping of C<%$self->{record_type_to_folder}>.
|
|
|
|
=back
|
|
|
|
=head1 FUNCTIONS
|
|
|
|
=over 4
|
|
|
|
=item C<new>
|
|
|
|
Creates a new SL::IMAPClient object. If no config is passed, the config
|
|
from config/kivitendo.conf is used. If a config is passed, the global
|
|
config is overridden.
|
|
|
|
=item C<DESTROY>
|
|
|
|
Destructor. Disconnects from the IMAP server.
|
|
|
|
=item C<update_emails_from_folder>
|
|
|
|
Updates the emails for a folder. Checks which emails are missing and
|
|
fetches these from the IMAP server. Returns the created email import object.
|
|
|
|
=item C<update_emails_from_subfolders>
|
|
|
|
Updates the emails for all subfolders of a folder. Checks which emails are
|
|
missing and fetches these from the IMAP server. Returns the created email
|
|
import object.
|
|
|
|
=item C<_update_emails_from_folder_strings>
|
|
|
|
Updates the emails for a list of folder strings. Checks which emails are
|
|
missing and fetches these from the IMAP server. Returns the created
|
|
email import object.
|
|
|
|
=item C<update_email_files_for_record>
|
|
|
|
Updates the email files for a record. Checks which emails are missing and
|
|
fetches these from the IMAP server.
|
|
|
|
=item C<update_email_subfolders_and_files_for_records>
|
|
|
|
Updates all subfolders and the email files for all records.
|
|
|
|
=item C<create_folder>
|
|
|
|
Creates a folder on the IMAP server. If the folder already exists, nothing
|
|
happens.
|
|
|
|
=item C<get_folder_string_from_path>
|
|
|
|
Converts a folder path to a folder string. The folder path is like path
|
|
on unix filesystem. The folder string is the path on the IMAP server.
|
|
The folder string is encoded in IMAP-UTF-7.
|
|
|
|
=item C<get_ilike_folder_path_from_string>
|
|
|
|
Converts a folder string to a folder path. The folder path is like path
|
|
on unix filesystem. The folder string is the path on the IMAP server.
|
|
The folder string is encoded in IMAP-UTF-7. It can happend that
|
|
C<get_folder_string_from_path> and C<get_ilike_folder_path_from_string>
|
|
don't cancel each other out. This is because the IMAP server can has a
|
|
different Ieparator than the unix filesystem. The changes are made so that a
|
|
ILIKE query on the database works.
|
|
|
|
=item C<create_folder_for_record>
|
|
|
|
Creates a folder for a record on the IMAP server. The folder structure
|
|
is like this: base_folder/customer_vendor_number customer_vendor_name/type/record_number
|
|
e.g. INBOX/1234 Testkunde/Angebot/123
|
|
If the folder already exists, nothing happens.
|
|
|
|
=item C<clean_up_record_subfolders>
|
|
|
|
Gets a list of acitve records. Syncs all subfolders and add email files to
|
|
the records. Then deletes all subfolders which are not corresponding to an
|
|
active record.
|
|
|
|
=item C<_get_folder_string_for_record>
|
|
|
|
Returns the folder string for a record. The folder structure is like this:
|
|
base_folder/customer_vendor_number customer_vendor_name/type/record_number
|
|
e.g. INBOX/1234 Testkunde/Angebot/123. This is passed through
|
|
C<get_folder_string_from_path>.
|
|
|
|
=item C<_create_imap_client>
|
|
|
|
Creates a new IMAP client and logs in. The IMAP client is stored in
|
|
$self->{imap_client}.
|
|
|
|
=back
|
|
|
|
=head1 BUGS
|
|
|
|
The mapping from record to email folder is not bijective. If the record or
|
|
customer number has special characters, the mapping can fail. Read
|
|
C<get_ilike_folder_path_from_string> for more information.
|
|
|
|
=head1 AUTHOR
|
|
|
|
Tamino Steinert E<lt>tamino.steinert@tamino.stE<gt>
|
|
|
|
=cut
|