1 <?php
2 /*
3 This code is part of GOsa (https://gosa.gonicus.de)
4 Copyright (C) 2005, Fabian Hickert
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
22 /*******************************************
23 Only function definition will follow here
24 /*******************************************
27 /* Reads all files in specified directory with contents an some inforations about the file */
28 /* Read all files with contents*/
29 /* |Folder="/var/ww...",
30 | |Fileprefix="node"
31 | | |Filesuffix=".html"
32 | | | |WithoutContent=false(This means : read content)
33 | | | | |Singlepage=false(Means read all, if w want to read single, specify its filename)"*/
34 function readfiles($basedir,$prefix,$suffix,$onlyIndex,$singlepage=false)
35 {
36 global $replacements;
38 $str = array(); // Temporary variable
39 $cnt = 0; // Array index creation
40 $file = ""; // Contains Filename
42 $dir = opendir($basedir);
44 $str['global']['start'] = $cnt; // collect basic informations - Startpage
45 $str['global']['basedir'] = $basedir; // collect basic informations - Basedirectory
47 /* Startime for Benchmark */
48 $start = (time()+microtime());
50 /* if singlepage == false -> Get all pages, */
51 if(!$singlepage) {
53 /* While theres is an unreaded file in our resource */
54 while (($file = readdir($dir)) !== false) {
56 /* Filter all files which arn't intressting */
57 if((strstr($file,$suffix))&&($file!=".")&&($file!="..")&&(strstr($file,$prefix))){
59 /* Collect informations */
60 $str[$file]=array();
61 $str[$file]['name'] = $file;
62 $str[$file]['size'] = filesize($basedir.$file);
64 /* Readfile conent too ? */
65 if(!$onlyIndex){
66 $str[$file]['content']= remove_unwanted_tags(linkwrapper(getcontents($basedir.$file),""),$replacements);
67 }
69 /* Include file status, for debugging, not used in script yet */
70 $str[$file]['stat'] = stat($basedir.$file);
71 $cnt++;
72 }
73 }
75 /* Only get on file*/
76 }else{
77 /* Pages read = 1 */
78 $cnt = 1;
80 /* Prepare result*/
81 $file = $singlepage;
82 $str[$file] = array();
83 $str[$file]['name'] = $file;
84 $str[$file]['size'] = filesize($basedir.$file);
86 /* If onlyIndex == true skip reading content */
87 if(!$onlyIndex){
88 $str[$file]['content']= remove_unwanted_tags(linkwrapper(getcontents($basedir.$file),""),$replacements);
89 }
91 /* Include file status, for debugging, not used in script yet */
92 $str[$file]['stat'] = stat($basedir.$file);
93 }
95 /* Sort to right order */
96 asort($str);
98 /* Endtime for Benchmark*/
99 $end = (time()+microtime());
100 $str['global']['cmptime'] = $end-$start;
102 /* Number of pages readed */
103 $str['global']['numpages']= $cnt;
104 closedir($dir);
105 return($str);
106 }
109 /* Read filecontent */
110 function getcontents($file)
111 {
112 $str = "" ; // Temporary variable for file contents
113 $tmp = "" ; // Temporary varibale for partitial file contents
115 /* open file and read*/
116 $fp = fopen($file,"r");
117 if($fp) {
118 while($tmp = fread($fp,512))
119 {
120 $str.= $tmp;
121 }
122 }else{
123 return(false);
124 }
125 return($str);
126 }
129 /*Remove tags */
130 function remove_unwanted_tags($str,$replacements)
131 {
132 $str=preg_replace($replacements['from'],$replacements['to'],$str);
133 return($str);
134 }
137 /*Converts the all links to specified path, is needed to get simple navigation */
138 function linkwrapper($str,$link)
139 {
140 $str = preg_replace("/HREF=\"http/i","target=\"_blank\" href=\"http",$str);
141 $str = preg_replace("/HREF=\"/","href=\"".$link."?pg=",$str);
142 // $str=str_replace("HREF=\"","href=\"".$link."?pg=",$str);
143 return($str);
144 }
147 /* Search content */
148 function search($arr,$word)
149 {
150 global $minwordlength,$allowed_chars_in_searchword;
151 /* Prepare Vars */
152 $result =array(); // Search result, filename, + hits + hits per word + matches
153 $words =array(); // Temporary searchword handling
154 $useablewords =array(); // Temporary searchword handling
155 $tryword = ""; // Temporary searchword handling
156 $result['global']['maxhit'] = 0;
157 unset($_SESSION['lastresults']);
158 unset($_SESSION['parsed_search_keyword']);
159 $_SESSION['parsed_search_keyword']="";
161 /* prepare searchwords */
162 $word = trim($word);
164 /* Filter all unusable chars */
165 $word = preg_replace($allowed_chars_in_searchword,"",$word);
166 $words = split(" ",str_replace("+"," ",$word));
168 /* Check all wordlengths */
169 foreach($words as $tryword){
170 $tryword = trim($tryword);
172 /* Filter words smaler than 3 chars */
173 if(strlen($tryword)>=$minwordlength) {
174 $_SESSION['parsed_search_keyword'].=$tryword." ";
175 $useablewords[]=$tryword;
176 }
177 }
179 /* Use words to search the content */
180 foreach($arr as $key=>$val)
181 {
182 /* overallhits counts hits per page */
183 $overallhits=0;
185 /* Search all words */
186 foreach($useablewords as $word)
187 {
188 /* Skip key global, it contains no file data - it is a summary info*/
189 if($key!="global")
190 {
191 /* Get all hits for the word in $matches*/
192 preg_match_all("/".$word."/i",$arr[$key]['content'], $matches,PREG_OFFSET_CAPTURE);
194 /* Filter in Tag results*/
195 if(count($matches[0])){
196 foreach($matches[0] as $num=>$hit){
197 if(is_in_tag($arr[$key]['content'],$hit[1])) {
198 unset($matches[0][$num]);
199 }
200 }
201 }
203 /* Count matches */
204 $overallhits=$overallhits + count($matches[0]);
206 /* Save collected data */
207 $result[$key]['hits'][$word] = count($matches[0]);
208 $result[$key]['hits']['overall']= $overallhits;
210 /* Save max hits for page */
211 if($overallhits > $result['global']['maxhit']){
212 $result['global']['maxhit']=$overallhits;
213 }
215 /* Add results for word to return value*/
216 $result[$key]['match'][$word]=array();
217 $result[$key]['match'][$word]=$matches[0];
218 }
219 }
220 }
222 /* Save result in Session, so we can mark words later, or go back to search, without searching again*/
223 $_SESSION['lastresults'] = $result;
224 return($result);
225 }
228 /* Detect 10 Best result entries, sort and call createResultEntry to create HTML output for complete list */
229 function searchlist($arr,$res,$maxresults)
230 {
231 $global = $res['global'];
232 $topten = array(); // To detect 10 best solutions
233 $ret = ""; // return value
234 unset($res['global']);
236 /* Detect 10 best Sites */
237 foreach($res as $key=>$val){
239 /* Skip results with no hits */
240 if($val['hits']['overall']>0){
241 $topten[$key] = $val['hits']['overall'];
242 }
243 }
245 /* Sort by hit position in content, to easier mark words */
246 asort($topten);
247 $topten = array_reverse($topten);
248 $topten = (array_slice($topten,0,$maxresults));
250 /* We have a result, an array with all content, an array with hits and position and we have the 10 best hits */
251 /* Foreach */
252 foreach($topten as $name => $hits) {
253 $ret.= createResultEntry($arr[$name],$res[$name],$name,$global['maxhit']);
254 }
256 /* appending footer message for resultlist */
257 $ret.= "<br> ".sprintf(_("%s results for your search with the keyword %s interpreted as %s"), "<b>".count($topten)."</b>", "<b>".htmlentities($_SESSION['search_string'])."</b>", "<b>".$_SESSION['parsed_search_keyword']."</b>");
259 return($ret);
260 }
263 /* This function marks a string with the given search result for this string*/
264 function markup_page($arr,$res)
265 {
266 global $pre_mark,$suf_mark;
268 $ret = ""; // return value
269 $repl = array();
270 $posadd = 0;
272 foreach($res['match'] as $word => $matches) {
273 foreach($matches as $matchnr=>$match) {
274 $repl[$match[1]]=$match[0];
275 }
276 }
278 ksort($repl);
280 foreach($repl as $position=>$word) {
281 $pos1 = strlen($arr);
282 $arr= markword($arr,($position+$posadd),$word,$pre_mark,$suf_mark);
283 $pos2 = strlen($arr);
284 $posadd =$posadd + ($pos2 - $pos1);
285 }
286 return($arr);
287 }
290 /* This function marks a single word with the specified prefix and suffix */
291 function markword($string,$position,$word,$prefix,$suffix)
292 {
293 $wordlength = strlen($word);
294 $wholelength = strlen($string);
296 $first = substr($string,0,$position);
297 $last = substr($string,($position+$wordlength),$wholelength);
299 return($first.$prefix.$word.$suffix.$last);
300 }
303 /* Creates HTML output for a single search result entry */
304 function createResultEntry($entry,$res,$name,$max)
305 {
306 $percentage = (int)(($res['hits']['overall'] / $max) * 100) ;
308 $str = "<b><a href=\"?pg=".$name."&mark=1\">".sprintf(_("%s%% hit rate in file %s"),$percentage,$name)."</a></b><br>" ;
309 $str.= substr(strip_tags($entry['content']),0,200);
310 $str.= "<hr>";
312 return($str);
313 }
316 /*Simple function to detect if we prepare to change a tag or visible text */
317 function is_in_tag($string,$pos)
318 {
319 $pos1 = strpos($string,"<",$pos);
320 $pos2 = strpos($string,">",$pos);
322 if ($pos1 > $pos2) {
323 return(true);
324 }else{
325 return(false);
326 }
327 }
329 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
330 ?>