1 <?php
3 class filter {
5 var $xmlData;
6 var $elements= array();
7 var $elementValues= array();
8 var $alphabetElements= array();
9 var $autocompleter= array();
10 var $category= "";
11 var $objectStorage= array();
12 var $objectBase= "";
13 var $base= "";
14 var $scope= "";
15 var $query;
16 var $initial= false;
17 var $scopeMode= "auto";
18 var $alphabet= null;
21 function filter($filename)
22 {
23 global $config;
25 // Load eventually passed filename
26 if (!$this->load($filename)) {
27 die("Cannot parse $filename!");
28 }
29 }
32 function load($filename)
33 {
34 $contents = file_get_contents($filename);
35 $this->xmlData= xml::xml2array($contents, 1);
37 if (!isset($this->xmlData['filter'])) {
38 return false;
39 }
41 $this->xmlData= $this->xmlData["filter"];
43 // Load filter
44 if (isset($this->xmlData['search'])) {
45 if (!isset($this->xmlData['search']['query'][0])){
46 $this->xmlData['search']['query']= array($this->xmlData['search']['query']);
47 }
49 // Move information
50 $entry= $this->xmlData['search'];
51 $this->scopeMode= $entry['scope'];
52 if ($entry['scope'] == "auto") {
53 $this->scope= "one";
54 } else {
55 $this->scope= $entry['scope'];
56 }
57 $this->query= $entry['query'];
58 } else {
59 return false;
60 }
62 // Transfer initial value
63 if (isset($this->xmlData['definition']['initial']) && $this->xmlData['definition']['initial'] == "true"){
64 $this->initial= true;
65 }
67 // Transfer category
68 if (isset($this->xmlData['definition']['category'])){
69 $this->category= $this->xmlData['definition']['category'];
70 }
72 // Generate formular data
73 if (isset($this->xmlData['element'])) {
74 if (!isset($this->xmlData['element'][0])){
75 $this->xmlData['element']= array($this->xmlData['element']);
76 }
77 foreach ($this->xmlData['element'] as $element) {
79 // Ignore elements without type
80 if (!isset($element['type']) || !isset($element['tag'])) {
81 next;
82 }
84 $tag= $element['tag'];
86 // Fix arrays
87 if (isset($element['value']) && !isset($element['value'][0])) {
88 $element['value']= array($element['value']);
89 }
91 // Store element for quick access
92 $this->elements[$tag] = $element;
94 // Preset elementValues with default values if exist
95 if (isset($element['default']) && !is_array($element['default'])) {
96 $this->elementValues[$tag] = $element['default'];
97 } else {
98 $this->elementValues[$tag] = "";
99 }
101 // Does this element react on alphabet links?
102 if (isset($element['alphabet']) && $element['alphabet'] == "true") {
103 $this->alphabetElements[]= $tag;
104 }
105 }
106 }
108 return true;
109 }
112 function getTextfield($element)
113 {
114 $tag= $element['tag'];
115 $result= "<input class='filter_textfield' id='$tag' name='$tag' type='text' size='30' maxlength='30' value='".$this->elementValues[$tag]."'>";
116 if (isset($element['autocomplete'])) {
117 $frequency= "0.5";
118 $characters= "1";
119 if (isset($element['autocomplete']['frequency'])) {
120 $frequency= $element['autocomplete']['frequency'];
121 }
122 if (isset($element['autocomplete']['characters'])) {
123 $characters= $element['autocomplete']['characters'];
124 }
125 $result.= "<div id='autocomplete$tag' class='autocomplete'></div>".
126 "<script type='text/javascript'>".
127 "new Ajax.Autocompleter('$tag', 'autocomplete$tag', 'autocomplete.php', { minChars: $characters, frequency: $frequency });".
128 "</script>";
130 $this->autocompleters[$tag]= $element['autocomplete'];
131 }
132 return $result;
133 }
136 function getCheckbox($element)
137 {
138 $tag= $element['tag'];
139 $checked= "";
140 if ($this->elementValues[$tag] == "true") {
141 $checked= " checked";
142 }
144 $result= "<input class='filter_checkbox' name='$tag' type='checkbox' onClick='document.mainform.submit();' value='true'$checked>";
145 return $result;
146 }
149 function getCombobox($element)
150 {
151 $result= "<select name='".$element['tag']."' size='1' onClick='document.mainform.submit();'>";
153 // Fill with presets
154 foreach ($element['value'] as $value) {
155 $selected= "";
156 if ($this->elementValues[$element['tag']] == $value['key']) {
157 $selected= " selected";
158 }
160 // Handle translations
161 $result.= "<option value='".$value['key']."'$selected>"._($value['label'])."</option>";
162 }
164 // Use autocompleter for additional data
165 if (isset($element['autocomplete'])) {
166 $list= $this->getCompletitionList($element['autocomplete'], $element['tag']);
167 foreach ($list as $value) {
168 $selected= "";
169 if ($this->elementValues[$element['tag']] == $value) {
170 $selected= " selected";
171 }
172 $result.= "<option value='$value'$selected>$value</option>";
173 }
174 }
176 $result.= "</select>";
178 return $result;
179 }
182 function getCurrentBase()
183 {
184 if (isset($this->search->base) && (string)$this->search->scope != "auto") {
185 return false;
186 }
188 return $this->base;
189 }
192 function getCurrentScope()
193 {
194 if (isset($this->search->scope) && (string)$this->search->scope != "auto") {
195 return (string)$this->search->scope;
196 }
198 return $this->scope;
199 }
202 function setObjectStorage($storage) {
203 $this->objectStorage= $storage;
204 }
207 function setObjectBase($base) {
208 $this->objectBase= $base;
209 }
212 function setBase($base) {
213 $this->base= $base;
214 }
217 function setCurrentScope($scope) {
218 $this->scope= $scope;
219 }
222 function renderAlphabet($columns= 10)
223 {
224 // Return pre-rendered alphabet if available
225 if ($this->alphabet) {
226 return ($this->alphabet);
227 }
229 $characters= _("*ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
230 $alphabet= "";
231 $c= 0;
233 /* Fill cells with charaters */
234 for ($i= 0, $l= mb_strlen($characters, 'UTF8'); $i<$l; $i++){
235 if ($c == 0){
236 $alphabet.= "<tr>";
237 }
239 $ch = mb_substr($characters, $i, 1, "UTF8");
240 $alphabet.= "<td><a class=\"alphaselect\" href=\"main.php?plug=".
241 validate($_GET['plug'])."&filter=".$ch."\"> ".$ch." </a></td>";
243 if ($c++ == $columns){
244 $alphabet.= "</tr>";
245 $c= 0;
246 }
247 }
249 /* Fill remaining cells */
250 while ($c++ <= $columns){
251 $alphabet.= "<td> </td>";
252 }
254 /* Save alphabet */
255 $this->alphabet= "<table width='100%'>$alphabet</table>";
257 return ($this->alphabet);
258 }
261 function renderApply()
262 {
263 return ("<input type='submit' name='apply' value='"._("Apply filter")."'>");
264 }
267 function renderScope()
268 {
269 $checked= $this->scope == "sub"?" checked":"";
270 return "<input type='checkbox' name='SCOPE' value='1' onClick='document.mainform.submit();'$checked> "._("Search in subtrees");
271 }
274 function render()
275 {
276 $smarty= get_smarty();
277 $smarty->assign("ALPHABET", $this->renderAlphabet());
278 $smarty->assign("APPLY", $this->renderApply());
279 $smarty->assign("SCOPE", $this->renderScope());
281 // Load template and replace elementsHtml[]
282 foreach ($this->elements as $tag => $element) {
283 $htmlCode= "";
284 switch ($element['type']) {
285 case "textfield":
286 $htmlCode = $this->getTextfield($element);
287 break;
289 case "checkbox":
290 $htmlCode = $this->getCheckbox($element);
291 break;
293 case "combobox":
294 $htmlCode = $this->getCombobox($element);
295 break;
297 default:
298 die ("Unknown element type specified!");
299 }
300 $smarty->assign("$tag", $htmlCode);
301 }
303 // Load template
304 return ("<input type='hidden' name='FILTER_LOADED' value='1'>".$smarty->fetch(get_template_path($this->xmlData['definition']['template'], true)));
305 }
308 function query()
309 {
310 global $class_mapping;
311 $result= array();
313 // Go thru all queries and merge results
314 foreach ($this->query as $query) {
315 if (!isset($query['backend']) || !isset($query['filter']) || !isset($query['attribute'])) {
316 die("No backend specified in search config.");
317 }
319 // Is backend available?
320 $backend= "filter".$query['backend'];
321 if (!isset($class_mapping["$backend"])) {
322 die("Invalid backend specified in search config.");
323 }
325 // Load filter and attributes
326 $filter= $query['filter'];
327 $attributes= $query['attribute'];
329 // Generate final filter
330 foreach ($this->elements as $tag => $element) {
331 if (!isset($element['set']) || !isset($element['unset'])) {
332 continue;
333 }
334 $e_set= is_array($element['set'])?"":$element['set'];
335 $e_unset= is_array($element['unset'])?"":$element['unset'];
337 if ($this->elementValues[$tag] == "") {
338 $e_unset= preg_replace('/\$/', normalizeLdap($this->elementValues[$tag]), $e_unset);
339 $filter= preg_replace("/\\$$tag/", $e_unset, $filter);
340 } else {
341 $e_set= preg_replace('/\$/', normalizeLdap($this->elementValues[$tag]), $e_set);
342 $filter= preg_replace("/\\$$tag/", $e_set, $filter);
343 }
344 }
346 $result= array_merge($result, call_user_func(array($backend, 'query'), $this->base, $this->scope, $filter, $attributes,
347 $this->category, $this->objectStorage, $this->objectBase));
348 }
351 return ($result);
352 }
355 function isValid()
356 {
357 foreach ($this->elements as $tag => $element) {
358 if (isset($element->regex)){
359 if (!preg_match('/'.(string)$element->regex.'/', $this->elementValues[$tag])){
360 return false;
361 }
362 }
363 }
364 return true;
365 }
368 function update()
369 {
371 /* React on alphabet links if needed */
372 if (isset($_GET['filter'])){
373 $s= mb_substr(validate($_GET['filter']), 0, 1, "UTF8")."*";
374 if ($s == "**"){
375 $s= "*";
376 }
377 foreach ($this->alphabetElements as $tag) {
378 $this->elementValues[$tag]= $s;
379 }
380 }
382 if (isset($_POST['FILTER_LOADED'])) {
383 // Load post values and adapt filter, base and scope accordingly - but
384 // only if we didn't get a _GET
385 foreach ($this->elements as $tag => $element) {
386 if (isset($_POST[$tag])){
387 $this->elementValues[$tag]= validate($_POST[$tag]);
388 } else {
389 $this->elementValues[$tag]= "";
390 }
391 }
392 }
394 // Save scope if needed
395 if ($this->scopeMode == "auto") {
396 $this->scope= isset($_POST['SCOPE'])?"sub":"one";
397 }
398 }
401 function getCompletitionList($config, $tag, $value="*")
402 {
403 global $class_mapping;
404 $res= array();
406 // Is backend available?
407 $backend= "filter".$config['backend'];
408 if (!isset($class_mapping["$backend"])) {
409 die("Invalid backend specified in search config.");
410 }
412 // Load filter and attributes
413 $filter= $config['filter'];
414 $attributes= $config['attribute'];
415 if (!is_array($attributes)) {
416 $attributes= array($attributes);
417 }
419 // Make filter
420 $filter= preg_replace("/\\$$tag/", normalizeLDAP($value), $filter);
421 if (isset($config['base']) && isset($config['scope'])
422 && isset($config['category']) && isset($config['objectbase']) ) {
423 $result= call_user_func(array($backend, 'query'), $config['base'], $config['scope'], $filter, $attributes,
424 $config["category"], $config["objectbase"]);
425 } else {
426 $result= call_user_func(array($backend, 'query'), $this->base, $this->scope, $filter, $attributes,
427 $this->category, $this->objectStorage, $this->objectBase);
428 }
430 foreach ($result as $entry) {
431 foreach ($attributes as $attribute) {
432 if (is_array($entry[$attribute])) {
433 for ($i= 0; $i<$entry[$attribute]['count']; $i++) {
434 $res[]= $entry[$attribute][$i];
435 }
436 } else {
437 $res[]= $entry[$attribute];
438 }
439 }
440 }
442 return $res;
443 }
446 function processAutocomplete()
447 {
448 global $class_mapping;
449 $result= array();
451 foreach ($this->autocompleters as $tag => $config) {
452 if(isset($_POST[$tag])){
453 $result= $this->getCompletitionList($config, $tag, $_POST[$tag]);
455 echo '<ul>';
456 foreach ($result as $entry) {
457 echo '<li>'.$entry.'</li>';
458 }
460 echo '</ul>';
461 }
463 }
464 }
467 }
469 ?>