1 <?php
3 class ppdManager
4 {
5 var $path= "";
6 var $cachedList= array();
8 function ppdManager($path)
9 {
10 if(is_dir($path)){
11 $this->path= $path;
12 }else{
13 print_red(sprintf(_("PPD manager : The specified path '%s' doesn't exists."),$path));
14 return (false);
15 }
16 }
19 function findPPD($path)
20 {
21 $list= array();
22 $currentDir= getcwd();
24 $dh = opendir($path);
25 while(false !== ($file = readdir($dh))){
27 /* Skip well known files */
28 if( $file == '.' || $file == '..'){
29 continue;
30 }
32 /* Recurse through all "common" directories */
33 if(is_dir($path.'/'.$file)){
34 $list= array_merge($list, $this->findPPD($path.'/'.$file));
35 continue;
36 }
38 /* Check for PPD extension */
39 if (preg_match('/\.ppd$/i', $file)){
40 $list[]= $path.'/'.$file;
41 }
42 }
44 closedir($dh);
45 chdir ($currentDir);
46 return ($list);
47 }
50 function updateAttribute($file, $section, $attribute, $value)
51 {
52 $fsection= false;
53 $fattribute= false;
54 $section= preg_replace('/^\*/', '', $section);
55 $attribute= preg_replace('/^\*/', '', $attribute);
57 $rp= @fopen($file, "r");
58 $wp= @fopen("$file.tmp", "w");
62 while (!feof($rp)){
63 $lines[]= fgets($rp, 1024);
64 }
66 $ret = "";
67 $done =false;
68 foreach($lines as $nr => $line){
70 if (preg_match("/\*OpenGroup:*\s+\**$section\/*/", $line)){
71 $fsection= true;
72 $ret .=$line;
73 continue;
74 }
76 if (($fsection) && ($section != "NO_SECTION")){
77 if (preg_match("/^\*CloseGroup:*\s+\**$section\/*/", $line)){
78 $fsection= false;
79 $ret .=$line;
80 continue;
81 }
84 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
85 $fattribute= true;
86 $ret .= $line;
87 continue;
88 }
90 if ($fattribute){
91 if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
92 $fattribute= false;
93 $ret .= $line;
94 continue;
95 }
97 if (preg_match("/^\*Default$attribute:*\s+/", $line)){
98 $line= "*Default$attribute: $value\n";
99 $done =true;
100 }
101 }
102 }else{
103 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
104 $fattribute= true;
105 $ret .= $line;
106 continue;
107 }
109 if ($fattribute){
110 if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
111 $fattribute= false;
112 $ret .= $line;
113 continue;
114 }
116 if (preg_match("/^\*Default$attribute:*\s+/", $line)){
117 $line= "*Default$attribute: $value\n";
118 $done =true;
119 }
120 }
121 }
122 $ret .=$line;
123 }
125 fwrite($wp,$ret);
127 fclose($wp);
128 fclose($rp);
130 copy("$file.tmp", "$file");
131 unlink("$file.tmp");
132 }
135 function saveProperties($ppdFile, $properties)
136 {
137 if(!is_readable($ppdFile)){
138 print_red(sprintf(_("Specified ppd file '%s' can't be opened for reading."),$ppdFile));
139 }elseif(!is_writeable(preg_replace("#(^.*/).*$#","\\1",$ppdFile.".tmp"))){
140 print_red(sprintf(_("The required tmp file file '%s' can't be opened for writing."),$ppdFile.".tmp"));
141 }else{
142 foreach ($properties as $name => $section){
143 foreach ($section as $attribute => $value){
144 if (is_array($value)){
145 $this->updateAttribute($ppdFile, $name, $attribute, $value['_default']);
146 }
147 }
148 }
149 }
150 }
152 function loadProperties($ppdFile)
153 {
154 $group= "";
155 $option= "";
156 $properties= array();
158 $fh= fopen ($ppdFile, 'r');
159 while (!feof($fh)) {
161 /* Read line */
162 $line= fgets($fh, 256);
163 if (strlen($line) >= 256){
164 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
165 }
167 /* Trigger for option groups */
168 if (preg_match('/^\*OpenGroup:/i', $line)){
170 /* Sanity checks */
171 if ($group != ""){
172 trigger_error(_('Nested groups are not supported!'), E_USER_WARNING);
173 continue;
174 }
175 if (in_array($group, $properties)){
176 trigger_error(_('Group name not unique!'), E_USER_WARNING);
177 continue;
178 }
180 // TODO: Symbol values are not supported yet!
181 if (preg_match('/\^/', $line)){
182 trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
183 }
184 $complete= preg_replace('@^\*OpenGroup:\s+(.*)$@i', '\1', $line);
185 $complete= trim($complete, '"');
186 if (preg_match('@/@', $complete)){
187 $group= trim(preg_replace('@^\*OpenGroup:\s+"?([^/]+)/.*$@i', '\1', $line));
188 $name = preg_replace('@^\*OpenGroup:\s+"?[^/]+/([^/]+).*$@i', '\1', $line);
189 } else {
190 $group= $complete;
191 $name = $complete;
192 }
193 $properties[$group]= array('_name' => $name);
194 continue;
195 }
196 if (preg_match("/^\*CloseGroup:\s+\"?$group\"?/i", $line)){
197 $group= "";
198 continue;
199 }
201 /* Trigger for options */
202 if (preg_match('/^\*OpenUI\s+/i', $line)){
204 /* Sanity check */
205 if ($option != ""){
206 trigger_error(_('Nested options are not supported!'), E_USER_WARNING);
207 continue;
208 }
210 // TODO: Symbol values are not supported yet!
211 if (preg_match('/\^/', $line)){
212 trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
213 }
214 $complete= preg_replace('@^\*OpenUI\s+(.*)$@i', '\1', $line);
215 $complete= trim($complete, '"');
216 if (preg_match('@/@', $complete)){
217 $option= trim(preg_replace('@^\*OpenUI\s+([^/]+)/.*$@i', '\1', $line));
218 $name = trim(preg_replace('@^\*OpenUI\s+[^/]+/([^/]+).*$@i', '\1', $line));
219 } else {
220 $option= trim($complete);
221 $name = trim($complete);
222 }
224 /* Extract option type */
225 $type= trim(preg_replace('/^[^:]+:\s+/', '', $line));
226 $name= preg_replace('/:.*$/', '', $name);
227 $option= preg_replace('/:.*$/', '', $option);
229 // TODO: PickMany is not supported yet!
230 if (preg_match('/PickMany/i', $type)){
231 trigger_error(_('PickMany is not supported yet!'), E_USER_WARNING);
232 }
233 if(empty($group)){
234 $properties["NO_SECTION"][$option]= array('_name' => $name, '_type' => $type);
235 }else{
236 $properties[$group][$option]= array('_name' => $name, '_type' => $type);
237 }
238 continue;
239 }
240 /* Show interest for option parsing */
241 if ($option != ""){
243 $eoption= preg_replace('@\*@', '', $option);
245 /* Close section? */
246 if (preg_match("@^\*CloseUI:\s+\*$eoption@i", $line)){
247 $option= "";
248 continue;
249 }
251 /* Default value? */
252 if (preg_match("@^\*Default$eoption:@", $line)){
253 $c= preg_replace("@^\*Default$eoption:\s+@", "", $line);
254 if(empty($group)){
255 $properties["NO_SECTION"][$option]['_default']= trim(trim($c, '"'));
256 }else{
257 $properties[$group][$option]['_default']= trim(trim($c, '"'));
258 }
259 continue;
260 }
262 /* Possible value? */
263 if (preg_match("@^\*$eoption\s+@", $line)){
264 #*PageSize Letter/US Letter: "<>setpagedevice"
265 $c= preg_replace("@^\*$eoption\s+([^/]+).*$@", "$1", $line);
266 $d= preg_replace("@^\*$eoption\s+[^/]+/([^:]+).*$@", "$1", $line);
267 if(empty($group)){
268 $properties["NO_SECTION"][$option][trim($c)]= trim($d);
269 }else{
270 $properties[$group][$option][trim($c)]= trim($d);
271 }
272 continue;
273 }
274 }
275 }
276 fclose ($fh);
277 return ($properties);
278 }
280 function loadDescription($ppdFile)
281 {
282 $model= "";
283 $manufacturer= "";
285 $fh= fopen ($ppdFile, 'r');
286 while ((!feof($fh))&&($fh)) {
288 /* Read line */
289 $line= fgets($fh, 256);
290 if (strlen($line) >= 256){
291 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
292 }
294 /* Extract interesting informations */
295 if (preg_match('/^\*Manufacturer:/i', $line)){
296 $manufacturer= preg_replace('/^\*Manufacturer:\s+"?([^"]+)"?.*$/i', '\1', $line);
297 }
298 if (preg_match('/^\*ModelName:/i', $line)){
299 $model= preg_replace('/^\*ModelName:\s+"?([^"]+)"?.*$/i', '\1', $line);
300 }
302 /* Got everything we need? Skip rest for speed reasons... */
303 if ($model != '' && $manufacturer != ''){
304 break;
305 }
306 }
307 fclose ($fh);
309 /* Write out a notice that the PPD file seems to be broken if we can't
310 extract any usefull informations */
311 if ($model == '' || $manufacturer == ''){
312 trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
313 }
315 return ($manufacturer.' - '.$model);
316 }
319 function getPrinterList($reload= false)
320 {
321 /* Load list of PPD files */
322 if (count($this->cachedList) == 0 || $reload){
323 $list= $this->findPPD($this->path);
325 /* Load descriptive informations to build final printer list */
326 $this->cachedList= array();
327 foreach ($list as $ppdFile){
328 $this->cachedList[$ppdFile]= $this->loadDescription($ppdFile);
329 }
331 }
333 return ($this->cachedList);
334 }
336 }
338 ?>