1 package GOSA::GosaSupportDaemon;
3 use Exporter;
4 @ISA = qw(Exporter);
5 my @functions = (
6 "create_xml_hash",
7 "get_content_from_xml_hash",
8 "add_content2xml_hash",
9 "create_xml_string",
10 "transform_msg2hash",
11 "get_time",
12 "build_msg",
13 "db_res2xml",
14 "db_res2si_msg",
15 "get_where_statement",
16 "get_select_statement",
17 "get_update_statement",
18 "get_limit_statement",
19 "get_orderby_statement",
20 "get_dns_domains",
21 "get_logged_in_users",
22 );
23 @EXPORT = @functions;
24 use strict;
25 use warnings;
26 use IO::Socket::INET;
27 use Crypt::Rijndael;
28 use Digest::MD5 qw(md5 md5_hex md5_base64);
29 use MIME::Base64;
30 use XML::Simple;
32 my $op_hash = {
33 'eq' => '=',
34 'ne' => '!=',
35 'ge' => '>=',
36 'gt' => '>',
37 'le' => '<=',
38 'lt' => '<',
39 'like' => ' LIKE ',
40 };
43 BEGIN {}
45 END {}
47 ### Start ######################################################################
49 my $xml = new XML::Simple();
51 sub daemon_log {
52 my ($msg, $level) = @_ ;
53 &main::daemon_log($msg, $level);
54 return;
55 }
60 #=== FUNCTION ================================================================
61 # NAME: create_xml_hash
62 # PARAMETERS: header - string - message header (required)
63 # source - string - where the message come from (required)
64 # target - string - where the message should go to (required)
65 # [header_value] - string - something usefull (optional)
66 # RETURNS: hash - hash - nomen est omen
67 # DESCRIPTION: creates a key-value hash, all values are stored in a array
68 #===============================================================================
69 sub create_xml_hash {
70 my ($header, $source, $target, $header_value) = @_;
71 my $hash = {
72 header => [$header],
73 source => [$source],
74 target => [$target],
75 $header => [$header_value],
76 };
77 return $hash
78 }
81 #=== FUNCTION ================================================================
82 # NAME: create_xml_string
83 # PARAMETERS: xml_hash - hash - hash from function create_xml_hash
84 # RETURNS: xml_string - string - xml string representation of the hash
85 # DESCRIPTION: transform the hash to a string using XML::Simple module
86 #===============================================================================
87 sub create_xml_string {
88 my ($xml_hash) = @_ ;
89 my $xml_string = $xml->XMLout($xml_hash, RootName => 'xml');
90 #$xml_string =~ s/[\n]+//g;
91 #daemon_log("create_xml_string:",7);
92 #daemon_log("$xml_string\n", 7);
93 return $xml_string;
94 }
97 sub transform_msg2hash {
98 my ($msg) = @_ ;
99 my $hash = $xml->XMLin($msg, ForceArray=>1);
101 # xml tags without a content are created as an empty hash
102 # substitute it with an empty list
103 eval {
104 while( my ($xml_tag, $xml_content) = each %{ $hash } ) {
105 if( 1 == @{ $xml_content } ) {
106 # there is only one element in xml_content list ...
107 my $element = @{ $xml_content }[0];
108 if( ref($element) eq "HASH" ) {
109 # and this element is an hash ...
110 my $len_element = keys %{ $element };
111 if( $len_element == 0 ) {
112 # and this hash is empty, then substitute the xml_content
113 # with an empty string in list
114 $hash->{$xml_tag} = [ "none" ];
115 }
116 }
117 }
118 }
119 };
120 if( $@ ) {
121 $hash = undef;
122 }
124 return $hash;
125 }
128 #=== FUNCTION ================================================================
129 # NAME: add_content2xml_hash
130 # PARAMETERS: xml_ref - ref - reference to a hash from function create_xml_hash
131 # element - string - key for the hash
132 # content - string - value for the hash
133 # RETURNS: nothing
134 # DESCRIPTION: add key-value pair to xml_ref, if key alread exists,
135 # then append value to list
136 #===============================================================================
137 sub add_content2xml_hash {
138 my ($xml_ref, $element, $content) = @_;
139 if(not exists $$xml_ref{$element} ) {
140 $$xml_ref{$element} = [];
141 }
142 my $tmp = $$xml_ref{$element};
143 push(@$tmp, $content);
144 return;
145 }
148 sub get_time {
149 my ($seconds, $minutes, $hours, $monthday, $month,
150 $year, $weekday, $yearday, $sommertime) = localtime(time);
151 $hours = $hours < 10 ? $hours = "0".$hours : $hours;
152 $minutes = $minutes < 10 ? $minutes = "0".$minutes : $minutes;
153 $seconds = $seconds < 10 ? $seconds = "0".$seconds : $seconds;
154 $month+=1;
155 $month = $month < 10 ? $month = "0".$month : $month;
156 $monthday = $monthday < 10 ? $monthday = "0".$monthday : $monthday;
157 $year+=1900;
158 return "$year$month$monthday$hours$minutes$seconds";
160 }
163 #=== FUNCTION ================================================================
164 # NAME: build_msg
165 # DESCRIPTION: Send a message to a destination
166 # PARAMETERS: [header] Name of the header
167 # [from] sender ip
168 # [to] recipient ip
169 # [data] Hash containing additional attributes for the xml
170 # package
171 # RETURNS: nothing
172 #===============================================================================
173 sub build_msg ($$$$) {
174 my ($header, $from, $to, $data) = @_;
176 my $out_hash = &create_xml_hash($header, $from, $to);
178 while ( my ($key, $value) = each(%$data) ) {
179 if(ref($value) eq 'ARRAY'){
180 map(&add_content2xml_hash($out_hash, $key, $_), @$value);
181 } else {
182 &add_content2xml_hash($out_hash, $key, $value);
183 }
184 }
185 my $out_msg = &create_xml_string($out_hash);
186 return $out_msg;
187 }
190 sub db_res2xml {
191 my ($db_res) = @_ ;
192 my $xml = "";
194 my $len_db_res= keys %{$db_res};
195 for( my $i= 1; $i<= $len_db_res; $i++ ) {
196 $xml .= "\n<answer$i>";
197 my $hash= $db_res->{$i};
198 while ( my ($column_name, $column_value) = each %{$hash} ) {
199 $xml .= "<$column_name>";
200 my $xml_content;
201 if( $column_name eq "xmlmessage" ) {
202 $xml_content = &encode_base64($column_value);
203 } else {
204 $xml_content = $column_value;
205 }
206 $xml .= $xml_content;
207 $xml .= "</$column_name>";
208 }
209 $xml .= "</answer$i>";
211 }
213 return $xml;
214 }
217 sub db_res2si_msg {
218 my ($db_res, $header, $target, $source) = @_;
220 my $si_msg = "<xml>";
221 $si_msg .= "<header>$header</header>";
222 $si_msg .= "<source>$source</source>";
223 $si_msg .= "<target>$target</target>";
224 $si_msg .= &db_res2xml;
225 $si_msg .= "</xml>";
226 }
229 sub get_where_statement {
230 my ($msg, $msg_hash) = @_;
231 my $error= 0;
233 my $clause_str= "";
234 if( (not exists $msg_hash->{'where'}) || (not exists @{$msg_hash->{'where'}}[0]->{'clause'}) ) {
235 $error++;
236 }
238 if( $error == 0 ) {
239 my @clause_l;
240 my @where = @{@{$msg_hash->{'where'}}[0]->{'clause'}};
241 foreach my $clause (@where) {
242 my $connector = $clause->{'connector'}[0];
243 if( not defined $connector ) { $connector = "AND"; }
244 $connector = uc($connector);
245 delete($clause->{'connector'});
247 my @phrase_l ;
248 foreach my $phrase (@{$clause->{'phrase'}}) {
249 my $operator = "=";
250 if( exists $phrase->{'operator'} ) {
251 my $op = $op_hash->{$phrase->{'operator'}[0]};
252 if( not defined $op ) {
253 &main::daemon_log("ERROR: Can not translate operator '$operator' in where-".
254 "statement to sql valid syntax. Please use 'eq', ".
255 "'ne', 'ge', 'gt', 'le', 'lt' in xml message\n", 1);
256 &main::daemon_log($msg, 8);
257 $op = "=";
258 }
259 $operator = $op;
260 delete($phrase->{'operator'});
261 }
263 my @xml_tags = keys %{$phrase};
264 my $tag = $xml_tags[0];
265 my $val = $phrase->{$tag}[0];
266 push(@phrase_l, "$tag$operator'$val'");
267 }
268 my $clause_str .= join(" $connector ", @phrase_l);
269 push(@clause_l, $clause_str);
270 }
272 if( not 0 == @clause_l ) {
273 $clause_str = join(" AND ", @clause_l);
274 $clause_str = "WHERE ($clause_str) ";
275 }
276 }
278 return $clause_str;
279 }
281 sub get_select_statement {
282 my ($msg, $msg_hash)= @_;
283 my $select = "*";
284 if( exists $msg_hash->{'select'} ) {
285 my $select_l = \@{$msg_hash->{'select'}};
286 $select = join(' AND ', @{$select_l});
287 }
288 return $select;
289 }
292 sub get_update_statement {
293 my ($msg, $msg_hash) = @_;
294 my $error= 0;
295 my $update_str= "";
296 my @update_l;
298 if( not exists $msg_hash->{'update'} ) { $error++; };
300 if( $error == 0 ) {
301 my $update= @{$msg_hash->{'update'}}[0];
302 while( my ($tag, $val) = each %{$update} ) {
303 my $val= @{$update->{$tag}}[0];
304 push(@update_l, "$tag='$val'");
305 }
306 if( 0 == @update_l ) { $error++; };
307 }
309 if( $error == 0 ) {
310 $update_str= join(', ', @update_l);
311 $update_str= "SET $update_str ";
312 }
314 return $update_str;
315 }
317 sub get_limit_statement {
318 my ($msg, $msg_hash)= @_;
319 my $error= 0;
320 my $limit_str = "";
321 my ($from, $to);
323 if( not exists $msg_hash->{'limit'} ) { $error++; };
325 if( $error == 0 ) {
326 eval {
327 my $limit= @{$msg_hash->{'limit'}}[0];
328 $from= @{$limit->{'from'}}[0];
329 $to= @{$limit->{'to'}}[0];
330 };
331 if( $@ ) {
332 $error++;
333 }
334 }
336 if( $error == 0 ) {
337 $limit_str= "LIMIT $from, $to";
338 }
340 return $limit_str;
341 }
343 sub get_orderby_statement {
344 my ($msg, $msg_hash)= @_;
345 my $error= 0;
346 my $order_str= "";
347 my $order;
349 if( not exists $msg_hash->{'orderby'} ) { $error++; };
351 if( $error == 0) {
352 eval {
353 $order= @{$msg_hash->{'orderby'}}[0];
354 };
355 if( $@ ) {
356 $error++;
357 }
358 }
360 if( $error == 0 ) {
361 $order_str= "ORDER BY $order";
362 }
364 return $order_str;
365 }
367 sub get_dns_domains() {
368 my $line;
369 my @searches;
370 open(RESOLV, "</etc/resolv.conf") or return @searches;
371 while(<RESOLV>){
372 $line= $_;
373 chomp $line;
374 $line =~ s/^\s+//;
375 $line =~ s/\s+$//;
376 $line =~ s/\s+/ /;
377 if ($line =~ /^domain (.*)$/ ){
378 push(@searches, $1);
379 } elsif ($line =~ /^search (.*)$/ ){
380 push(@searches, split(/ /, $1));
381 }
382 }
383 close(RESOLV);
385 my %tmp = map { $_ => 1 } @searches;
386 @searches = sort keys %tmp;
388 return @searches;
389 }
392 sub get_logged_in_users {
393 my $result = qx(/usr/bin/w -hs);
394 my @res_lines;
396 if( defined $result ) {
397 chomp($result);
398 @res_lines = split("\n", $result);
399 }
401 my @logged_in_user_list;
402 foreach my $line (@res_lines) {
403 chomp($line);
404 my @line_parts = split(/\s+/, $line);
405 push(@logged_in_user_list, $line_parts[0]);
406 }
408 return @logged_in_user_list;
410 }
412 1;